CN117585311A

CN117585311A - Force transmission structure, packaging assembly, electrical assembly, filter screen and electrical equipment

Info

Publication number: CN117585311A
Application number: CN202310679540.6A
Authority: CN
Inventors: 吴迎; 钟磊
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2022-08-17
Filing date: 2023-06-09
Publication date: 2024-02-23
Also published as: WO2024037584A1

Abstract

The force transmission structure includes: the device comprises a coupling piece, two bodies and two mass blocks, wherein the two mass blocks are respectively arranged on the two bodies in a protruding mode; the coupling piece connects the two bodies.

Description

Force transmission structure, packaging assembly, electrical assembly, filter screen and electrical equipment

Cross Reference to Related Applications

The present application claims priority from chinese patent application filed at 2022, 8, 17, application number 2022109919124 and entitled "force transmitting structure, packaging assembly, electrical assembly, filter mesh enclosure, and electrical apparatus", the entire contents of which are incorporated herein by reference.

Technical Field

The application belongs to the electrical equipment field, concretely relates to power transmission structure, packaging component, electrical components, filtration screen panel and electrical equipment.

Background

In order to avoid damage to the electrical equipment, the electrical equipment can be packaged by adopting a packaging structure, so that damage to the electrical equipment due to impact and vibration in the process of carrying and transporting is reduced. The packaging assembly mostly adopts a corrugated case and a foam structure, foam is combined in the corrugated case, and the outer peripheral surface of the electric equipment is covered by the foam, so that the electric equipment is protected. Likewise, the packaging structure also receives loads such as impact and vibration during the protection of the electrical equipment. When impact force is gathered, the packaging structure is easy to damage, and the effect of protecting electrical equipment cannot be achieved.

Disclosure of Invention

The application aims to solve the technical problem of higher cost at least to a certain extent. To this end, the application provides a force transmission structure, packaging component, electrical components, filtration screen panel and electrical equipment.

In a first aspect of the present application, there is provided a force transmission structure comprising:

two bodies;

the two mass blocks are respectively arranged on the two bodies in a protruding way;

and the coupling piece is connected with the two bodies.

The mass blocks are placed on the bodies, the modulation of elastic waves can be achieved, the two bodies are connected through the two coupling pieces, the two mass blocks are respectively arranged on the two bodies in a protruding mode, the bodies are connected through the coupling pieces, the two bodies are arranged at intervals, the material used can be reduced while the same protective capacity is achieved, the material can be prevented from being damaged as much as possible when the electrical equipment is impacted and vibrated in the carrying or transporting process, and the protective capacity is improved.

In an alternative embodiment of the present application, the coupling member includes a plurality of coupling posts, each of which connects two of the bodies, respectively, and each of which is disposed obliquely.

In an alternative embodiment of the present application, a plurality of the coupling posts are all disposed obliquely around the same clockwise direction.

In an alternative embodiment of the present application, the projections of the plurality of coupling columns on any one of the bodies are polygonal.

In an alternative embodiment of the present application, the coupling columns are cylindrical, the diameter of the coupling columns is 0.5 mm-1.5 mm, and the spacing distance between any two non-adjacent coupling columns is 4 mm-8 mm.

In an alternative embodiment of the present application, the mass has a connection surface, the body has a mounting surface, the connection surface is connected with the mounting surface, and the area of the connection surface is greater than or equal to one third of the area of the mounting surface.

In an alternative embodiment of the present application, the distance between two bodies is 2mm-5mm, the thickness of the bodies is 0.5mm-2mm, and the thickness of the mass is 2mm-6mm.

In an alternative embodiment of the present application, the thickness of the mass is greater than or equal to the thickness of the body.

In an alternative embodiment of the present application, the body is rectangular, the side length of the body is 8mm-12mm, the mass is rectangular, and the side length of the mass is 5mm-10mm.

In an alternative embodiment of the present application, the coupling member and the mass block are respectively disposed on two sides of the body, and the two mass blocks are disposed opposite to each other.

A second aspect of the present application provides a packaging assembly comprising a plurality of guard members, adjacent two guard members being connected, the guard members being wrapped around an outer surface of an article to be packaged, at least one of the guard members being provided with a force transmitting structure.

The advantages of the package assembly provided by the second aspect are the same as those of the force transmission structure provided by the first aspect and will not be described in detail here.

In an alternative embodiment of the present application, the coupling elements of the force transmission structures of two adjacent shields are inclined about different needle directions.

In an alternative embodiment of the present application, the guard is provided with a plurality of the force transmitting structures, the plurality of force transmitting structures being arranged in a matrix.

In an alternative embodiment of the present application, the packaging assembly further comprises a support body, and the support body is wrapped on the outer surface of the packaging assembly.

A third aspect of the present application provides an electrical assembly comprising an electrical device and the packaging assembly, a plurality of the protective members being wrapped around an outer surface of the electrical device.

The electrical assembly provided in the third aspect has the same advantages as the packaging assembly provided in the second aspect, and will not be described in detail here.

A fourth aspect of the present application provides a filter screen provided with the force transmission structure of the third aspect.

The beneficial effects of the filtering mesh enclosure provided in the fourth aspect are the same as those of the force transmission structure provided in the first aspect, and are not described here again.

A fifth aspect of the present application provides an electrical apparatus, including the filter screen.

The electrical equipment provided in the fifth aspect has the same beneficial effects as the filtering mesh enclosure provided in the fourth aspect, and will not be described here again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structure of a package structure in the related art.

Fig. 2 shows a schematic structural diagram of a first view of a force transmission structure provided in an embodiment of the present application.

Fig. 3 shows a schematic structural diagram of a second view of the force transmission structure provided in an embodiment of the present application.

Fig. 4 shows a schematic structural diagram of the mass and the body provided in an embodiment of the present application.

Fig. 5 shows a schematic diagram of the bulk dispersion of the structure in fig. 4.

Fig. 6 shows a bulk dispersion schematic of the force transfer structure of fig. 2 and 3.

Fig. 7 shows a schematic diagram of experimental results of elastic edge states of the structure in fig. 4.

Fig. 8 is a schematic diagram showing experimental results of elastic edge states of the force transmission structure in fig. 2 and 3.

Fig. 9 shows a schematic view of the spiral edge state of the force transmission structure of fig. 2 and 3 at different moments in time.

Fig. 10 shows a schematic view of the spiral edge state of the force transmission structure of fig. 2 and 3 at different moments in time.

Fig. 11 shows a schematic of a sample with defects.

Fig. 12 shows a transmission curve diagram.

Fig. 13 shows a schematic structural view of a packaging assembly according to an embodiment of the present application.

Fig. 14 shows a schematic structural view of the first guard in fig. 13.

Fig. 15 shows a schematic structural view of the second guard in fig. 13.

Figure 16 shows a schematic view of a package assembly having two different handedness.

Fig. 17 shows the energy of 2 to 4 in fig. 16 as a function of height.

Fig. 18 shows the transmission path of the elastic wave of fig. 16.

Fig. 19 is a schematic view of the structure of the package assembly with the support.

Reference numerals: 100' -foam, 10-force transmission structure, 200-body, 300-mass, 400-coupling piece, 401-coupling post, 500-package component, 501-guard, 5011-first guard, 5012-second guard, 5013-edge, 5014-weight-reducing part, 600-support, 601-opening, 700-product to be protected, 20-electrical component.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that all the directional indicators in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present application, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either permanently attached or removably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In addition, descriptions such as those related to "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in this application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

In order to avoid damage to the electrical equipment, the electrical equipment can be packaged by adopting a packaging structure, so that damage to the electrical equipment due to impact and vibration in the process of carrying and transporting is reduced. The packaging assembly mostly adopts a corrugated case and a foam structure, and the foam is combined in the corrugated case so as to wrap the peripheral surface of the part covering the electrical equipment, thereby playing a role in protecting the electrical equipment. Likewise, the packaging structure also receives loads such as impact and vibration during the protection of the electrical equipment. When impact force is gathered, the packaging structure is easy to damage, and the effect of protecting electrical equipment cannot be achieved.

The electrical equipment such as oven bears the load such as impact, vibration in handling and transportation, and the packing must protect electrical equipment such as oven from appearance and functional damage.

Fig. 1 is a schematic view of a package assembly 500 during the development of the applicant. Referring to fig. 1, the package assembly 500 includes two foams 100' disposed on opposite sides of a product 700 to be protected, the two foams 100' being disposed in a spaced-apart relationship, the two foams 100' being not integrally formed, and not being stable, and the two spaced-apart foams 100' providing limited cushioning protection areas for the product, and not providing full protection, and the securement between the two spaced-apart foams 100' and the product 700 to be protected being dependent upon the corrugated or cardboard box being wrapped around the outer layer, the corrugated or cardboard box being large in size and relatively expensive.

The present application is described below with reference to the following detailed description taken in conjunction with the accompanying drawings:

referring to fig. 2 and 3, the present application provides a force transmission structure 10, which can be applied to a packaging assembly 500, a filter screen or an electrical device with a filter screen. The force transmission structure 10 provided in this embodiment is not damaged as much as possible when the electrical equipment is impacted and vibrated during handling or transportation, and can improve the protection capability and reduce the cost.

In the present formulae, the force transmission structure 10 includes: the device comprises two bodies 200, two mass blocks 300 and a coupling piece 400, wherein the two mass blocks 300 are respectively arranged on the two bodies 200 in a protruding mode; the coupling 400 connects the two bodies 200.

The mass blocks 300 are placed on the bodies 200, so that the modulation of elastic waves can be realized, the two bodies 200 are connected through the two coupling pieces 400, the two mass blocks 300 are respectively convexly arranged on the two bodies 200, the bodies 200 are connected through the coupling pieces 400, the two bodies 200 are arranged at intervals, when the electric equipment is subjected to loads such as impact and vibration, the transmission space of the elastic waves is reserved in a gap between the two bodies 200, the elastic waves can be transmitted on the force transmission structure 10 when the electric equipment is subjected to the impact and vibration in the carrying or transporting process, the elastic waves are not damaged as much as possible, and the damage to the force transmission structure 10 is reduced.

Meanwhile, as the mass block 300 is convexly arranged on the body 200, the mass block 300 can play a role in reinforcing the body 200 when elastic waves are transmitted on the body 200, and damage to the whole body 200 is reduced in the process of transmitting the elastic waves by the body 200. Since the mass 300 is protruded on the body 200, the use of materials can be reduced and the cost can be reduced compared to directly increasing the thickness of the body 200. That is, the force transmission structure provided by the application can improve the protection capability and simultaneously reduce the cost.

Wherein the body 200, the mass 300 and the coupling 400 may be made of elastic meta-material, which may be foam 100'.

In some embodiments, the coupling 400 includes a plurality of coupling posts 401, each coupling post 401 connecting two bodies 200, respectively, each coupling post 401 being disposed obliquely.

Wherein, two masses 300 are disposed opposite to each other, i.e. for the same body 200, the masses 300 and the coupling columns 401 are disposed on both sides of the body 200, i.e. for the whole force transmission structure 10, two masses 300 are disposed on the outside, and the coupling columns 401 are disposed on the inside. The mass 300 may be disposed at the center of the body 200, the mass 300 may be disposed symmetrically with respect to the center plane between the two bodies 200 on opposite sides of the two bodies 200, and the coupling 400 may be disposed corresponding to the mass 300, with the coupling 400 disposed between the corresponding two masses 300.

Of course, the mass blocks 300 on opposite sides of the two bodies 200 may also be arranged in a staggered manner, which is not limited herein.

In some embodiments, the plurality of coupling posts 401 are each disposed obliquely about the same clockwise direction.

The force transmission structure 10 is also a topological structure, and the inclination directions of the plurality of coupling columns 401 are also topological phases of the topological structure. The plurality of coupling posts 401 are each inclined in the same clockwise direction, and the plurality of coupling posts 401 may be considered to be arranged substantially in a spiral shape.

In some embodiments, the projections of the plurality of coupling posts 401 on any one body 200 are polygonal.

The body 200 is rectangular, the two bodies 200 are overlapped, and the number of the coupling columns 401 may be four, if the number of the coupling columns 401 is four, the four coupling columns 401 are respectively arranged in the directions of four sides of the body 200 and are obliquely arranged towards the same clockwise direction, so that the projection of the four coupling columns 401 on any one body 200 is quadrilateral.

That is, for the same coupling post 401, two ends of the coupling post 401 are respectively connected to the two bodies 200, one end of the coupling post 401 is connected to one of the bodies 200, the other end is connected to the other body 200, and the projection of the connection point of one end of the coupling post 401 to one of the bodies 200 on the other body 200 coincides with the connection point of the other coupling member 400 to the other body 200, so that the projection of the coupling post 401 on each body 200 is in a closed shape, and the stability of the whole force transmission structure 10 can be improved.

In some embodiments, the coupling posts 401 are cylindrical, the diameter of the coupling posts 401 is 0.5mm to 1.5mm, and the separation distance between any non-adjacent two coupling posts 401 is 4mm to 8mm.

If the coupling columns 401 are four, the projections of the four coupling columns 401 on any one body 200 are rectangular, and the spacing distance between two non-adjacent coupling columns 401 is the spacing distance between two coupling columns 401. The distance between any two non-adjacent coupling columns 401 is 4mm to 8mm, and the width of the transmission elastic wave band can be increased while connecting the two bodies 200.

In some embodiments, the mass 300 has a connection face, the body 200 has a mounting face, the connection face is connected to the mounting face, and the area of the connection face is greater than or equal to one third of the area of the mounting face.

The body 200 is rectangular, the mass block 300 is also rectangular, the mass block 300 is convexly arranged on the body 200, the area of the connecting surface is larger than or equal to one third of the area of the mounting surface, the arrangement area of the mass block 300 on the body 200 can be ensured, and the strength of the whole force transmission structure 10 can be ensured.

Wherein, the mass 300 and the body 200 are arranged in a staggered manner, that is, one vertex of the mass 300 is arranged corresponding to one side of the mass 300.

In some embodiments, the thickness of the mass 300 is greater than or equal to the thickness of the body 200. The mass 300 is convexly arranged on the body 200, and the projection of the mass 300 on the body 200 can completely fall on the body 200, and the thickness of the mass 300 is larger than that of the body 200, so that the mass 300 can play a role in reinforcing the body 200, the elastic wave can be transmitted on the force transmission structure 10, and the damage of the force transmission structure 10 is reduced.

In the present embodiment, the distance between the two bodies 200 is 2mm to 5mm, the thickness of the bodies 200 is 0.5mm to 2mm, and the thickness of the mass 300 is 2mm to 6mm.

Since the coupling post 401 is obliquely disposed between the two bodies 200, the actual length of the coupling post 401 should be greater than the separation distance between the two bodies 200. When transmitting the elastic wave, the distance between the two bodies 200 can reserve the movement space of the two bodies 200 under the influence of the elastic wave, so that the force transmission structure 10 can smoothly transmit the elastic wave.

In some embodiments, the body 200 is rectangular, the sides of the body 200 are 8mm-12mm, the mass 300 is rectangular, and the sides of the mass 300 are 5mm-10mm.

The force transmission structure 10 shown in fig. 4 is a belt structure formed by providing a mass 300 on a body 200 to modulate an elastic wave. Is subject to C _4v The protection of point group symmetry, there is a double degenerated point on the M point (M point is one vertex in the square lattice). The degenerated point is a typical quadratic Dirac point (in a band structure, there are upper and lower tapered structures with linear dispersion relations at the high symmetry points of the brillouin zone boundary, the peaks of these tapered structures are called Dirac points, characterized by inverse curvature quadratic dispersion, and a 2 pi Berry phase around this point, where Berry phase refers to the global phase evolution of a complex vector moving back to the origin along a path in a parameter space.

With reference to fig. 2 and 3, the force transmitting structure 10 shown in fig. 2 and 3 introduces an interlayer coupling (coupling 400) between two identical single-layer elastic metamaterials. Without coupling, the bi-layer elastic metamaterial has a second degeneracy at the M-point. To open the bandgap at this point, a couple between chiral layers is achieved by four tilted coupling columns 401, thus breaking the symmetry. The topology characteristic of the device is thoroughly described by deriving the effective Hamiltonian volume around the M point from the disturbance theory through k.p, the linear part of the disturbance Hamiltonian volume disappears in consideration of all crystal symmetry, and meanwhile, the explicit form of the secondary part is strictly constrained, and the disturbance Hamiltonian volume isWherein the Brix matrix τ _i Sum sigma _i Representing a single layer elastic superelevationPseudo spin in the material and a fundamental vector forming a quadratic form of fusion, (Deltak) _x ,Δk _y ) Representing dimensionless wave vector deviating from point M, q _i (i=0, 1, 2) and η represent intra-layer and inter-layer coupling, respectively.

The disturbance Hamiltonian quantity is consistent with the symmetry of the system, and the energy band structure of the double-layer elastic metamaterial can be described. When η=0, the hamiltonian describes the case of a single layer, which can be determined as q by fitting the dispersion curve of the elastic metamaterial of the single layer around the M point ₀ ＝0.38Hz ² ，q ₁ ＝1.26Hz ² And q ₂ ＝1.39Hz ² . The fitted dispersion curve is shown in fig. 5 and the solid lines of two parabolic shapes in fig. 6, and it can be seen that the fitted curve and the calculation result have good consistency. When η+.0, the last term in the formula represents the coupling of the interlayer pseudo spin and the single layer eigenstate, which will produce artificial spin orbit coupling of the double layer elastic metamaterial and a forbidden band at the point M. η=1.39 Hz can be determined from the width of the band gap ² . Determine q _i And eta, the fitting curve determined by a formula is matched with the dispersion curve of the double-layer elastic metamaterial (hollow circle). Here the color in the dispersion represents the ratio of the out-of-plane mode to the total shift. It can be seen that near the M-point, the in-plane mode and the out-of-plane mode are mixed with each other. However, the mode is dominant in the plane near the Γ point and is not stimulated at will. This feature allows us to characterize the topology by measuring the out-of-plane modes in experiments, while in-plane modes away from the M-point are automatically masked.

The geometry of the bulk dispersions simulated in fig. 5 and 6 is as follows: the side length of the body 200 of the unit cell, the thickness of the body 200, the length and height of the mass 300, the interlayer distance between the two bodies 200, the diameter of the coupling post 401, and the distance between the two coupling posts 401 on the same side are.

Elastic waves in a two-layer elastic metamaterial have vector characteristics, so that the topological characteristics of a structure cannot be characterized only by an out-of-plane mode, and two in-plane modes are needed to be included. This full vector property is necessary for the formula to describe the topological properties of the structure. By unitary transformationHamiltonian variable of system and partitioned diagonal arrayHere a blocking matrixIndicating the hamiltonian up/down of the pseudo spin. The two blocking matrices have the same forbidden band range and opposite Chen Shu C _↑/↓ = ±sgn (η). On the other hand, the non-mediocre topological properties of the bilayer elastic metamaterial can be characterized by numerical calculation of the Wilson circle of the non-Abbe of the primitive cell structure.

Due to the non-trivial nature of the body states, it can be predicted that topological edge states will occur at the free or fixed boundaries of the sample. The edge states here require only one material compared to the topological edge states previously present at the two interfaces. The applicant processed two samples corresponding to fig. 2 and 3, respectively, representing the free and fixed boundaries, respectively, the samples comprising individual units. The piezoelectric patch was attached to the free or fixed boundary of the sample to excite the edge state, and in experiments, the applicant measured the out-of-plane component perpendicular to the sample with a laser vibrometer at an excitation frequency of 26.75kHz for both samples.

The experimental results of the elastic edge states of the two samples are shown in fig. 7 and 8, wherein the color represents the experimental results and the solid curve represents the calculated results. For the free boundary conditions, the experimental results and the calculation results show better consistency, and also indicate that topological edge states exist on the boundary. At the same time, it was found that at k _x There is a very small forbidden band at the edge state =pi/a, because the upward and downward pseudo-spins are coupled to each other. The ratio of the forbidden band of the edge state to the center frequency was 0.3% so as to be indistinguishable in the experiment. For a fixed boundary condition we have obtained a pair of zero-bandgap edge states corresponding to the two solid curves in the middle in figure 8, resulting in the pseudospin propagating up and down toward each other along the boundary. Since the source is placed on the left side of the sample,only the edge state dispersion with positive group velocity is excited, and the experimental result and the calculation result have good consistency.

The pseudo spin-momentum binding properties of the helical edge states can be reflected by the profiles of the eigenmodes of the free and fixed boundaries. As shown in fig. 9 and 10, at different times, the whirl of the amplitude causes the rotation of the square, and the direction of the rotation coincides with the propagation direction of the edge state. Specifically, the edge state propagating forward (backward) has a rotation in the clockwise direction (counterclockwise). Thus, the topological edge states bind to the direction of the vortex. Further, multiple point sources are utilized, but with different phases, to selectively excite the edge states of the pseudo-spin up or down.

A significant feature of topological edge states is that they can be robustly unidirectionally transported along the boundary even if there are defects (e.g. sharp corners). To this end, the applicant devised a sample with a rectangular defect having 4 corners of 90 degrees as shown in fig. 11. The source is placed at one end of the free boundary, which is 34 units in length. With a chirp signal, the frequency varies linearly from 23.5kHz to 30.5 kHz. In connection with fig. 12, applicants compared transmission curves containing defect and straight paths, which differ less in the topological forbidden band (gray zone), indicating that the edge states propagating along rectangular defects have weak back scattering with excitation frequency of 26.75kHz. The experimental results and simulation results showed good consistency, indicating that the elastic wave can propagate smoothly around rectangular defects.

Referring to fig. 13, the embodiment of the present application further provides a packaging assembly 500, including a plurality of protection members 501, two adjacent protection members 501 are connected, the protection members 501 are wrapped on the outer surface of the article to be packaged, and at least one protection member 501 is provided with the force transmission structure 10.

The plurality of force transmission structures 10 may be disposed on the guard 501, the force transmission structure 10 may be disposed on one guard 501, or the force transmission structure 10 may be disposed on each of the plurality of guards 501, and two adjacent guards 501 may be connected to form a package on at least a portion of the outer surface of the product 700 to be protected.

When the entire product falls, energy generated by contact of the integral corners formed by the plurality of shields 501 with the ground may be spread along the edges of the force transfer structure 10, thereby avoiding excessive accumulation at the corner locations of the shields 501, reducing the risk of damage to the package assembly 500, and improving the protective capabilities of the shields 501.

Wherein the plurality of guard members 501 includes a second guard member 5012 and at least one first guard member 5011, the side portions of the first guard member 5011 are connected with the second guard member 5012, and the force transmission structure 10 is provided at least on the first guard member 5011, and the force transmission structure 10 may be provided on both the first guard member 5011 and the second guard member 5012.

When there is only one first protector 5011, the first protector 5011 is preferably a front surface against which the product 700 to be protected is protected, the force transmission structure 10 may be provided only on one side portion of the first protector 5011, the force transmission structure 10 may be provided on both side portions of the first protector 5011, and the force transmission structure 10 may be provided over the entire area of the first protector 5011. Of course, the number of the first protecting pieces 5011 is also plural, and the first protecting pieces can be designed adaptively according to the actual situation of the product to be packaged.

Fig. 14 is a schematic structural view of the first guard 5011 in fig. 13. With reference to fig. 13 and 14, the entire area of the first guard 5011 of the embodiment of the present application is provided with the above-described force transmission structure 10. The mass 300 of the force transmitting structure 10 on the first guard 5011 may be provided with a plurality of rows and columns at intervals, at this time, when the product falls, energy generated by contact between the corner of the guard 501 and the ground may be spread along the side portion of the guard 501 (including the vertical edge 5013 at the corner and two horizontal edges 5013 connected to the edge 5013 at the corner), so that excessive accumulation of energy at the corner of the guard 501 is avoided, and damage to the package assembly 500 is prevented, so as to achieve the purpose of protecting the product.

Fig. 15 is a schematic structural view of the second guard 5012 in fig. 13. In combination with fig. 13 and 15, in this embodiment, the second guard 5012 connected to the side portion of the first guard 5011 is also provided with the force transmission structure 10, because the first guard 5011 and the second guard 5012 have an included angle, opposite valley topologies can exist on two sides of the side edge (i.e., the vertical edge 5013) where the first guard 5011 and the second guard 5012 are connected, so that a boundary state of topology protection can be formed at the interface, and energy at a guiding angle position propagates along the edge 5013 (including the vertical edge 5013 at the corner and the two edges 5013 in horizontal directions connected to the edge 5013 at the same corner on the first guard 5011 and the second guard 5012), so that excessive aggregation of energy at the corner position is avoided, and damage to the packaging structure is prevented.

The specific arrangement of the force transmission structure 10 of the second guard 5012 can be referred to as the arrangement of the force transmission structure 10 on the first guard 5011, and will not be described herein.

Referring to fig. 13, 14 and 15, the first guard 5011 and the second guard 5012 may be a body 200200 of the force transmission structure 10, and only the outer sides of the first guard 5011 and the second guard 5012 are provided with the mass blocks 300, that is, the force transmission structure 10 on the first guard 5011 and the second guard 5012 in this embodiment of the present application adopts the force transmission structure 10 shown in fig. 2, so that the inner side of the first guard 5011 is as plane as possible, and is attached to the outer surface corresponding to the product 700 to be protected.

Of course, in other embodiments, the force transmission structure 10 on the first guard 5011 and the second guard 5012 of the embodiments of the present application may also employ the force transmission structure 10 shown in fig. 3, which is not limited herein.

Referring to fig. 13, in this embodiment, the side portion of the first guard 5011 and the side portion of the second guard 5012 are connected in a fitting manner, and a mortise and tenon manner, a plugging manner, a butt-joint manner, or the like may be specifically selected, which is not particularly limited herein.

In some embodiments, other protecting members 501 may be connected in a jogged manner, that is, one protecting member 501 is jogged with two adjacent protecting members 501 and supports two adjacent protecting members 501, so that the protecting member may form an integral protecting structure, during the transportation process, if a protecting member 501 receives an impact force, the impact force may be dispersed to other positions through other protecting members 501, so as to reduce the impact force of the product 700 to be protected, if a protecting member 501 receives an impact force to break, the other protecting members 501 may play a supporting role on the breaking position, preventing the breaking position from shifting, so as to improve the comprehensive protecting capability of the packaging assembly 500, and have good practical value.

In this embodiment, the material of the protection piece 501 may be selected from the foam 100' which is more commonly used in the market, wherein two sides of each protection piece 501 may be embedded with the sides of two adjacent protection pieces 501, and since the sides of the protection pieces 501 are embedded with each other, the protection piece 501 may be utilized to the greatest extent, so as to form a protection layer matching with at least part of the outer surface of the product 700 to be protected, so as to save cost.

Of course, in other embodiments, a portion of the adjacent protection members 501 may not be embedded edge-to-edge, that is, one protection side may be embedded in the middle of another protection member 501, and a protection layer that is wrapped around at least a portion of the outer surface of the product 700 to be protected may be configured. In this solution, there are redundant unfavorable protection pieces 501, which may result in cost waste, but this solution may prolong the distance between the external collision object and the product 700 to be protected, and is more favorable for protecting the product 700 to be protected.

In some embodiments, according to the appearance characteristics of the product 700 to be protected, the protecting member 501 may be wrapped on a part of the outer surface of the product 700 to be protected, or may be wrapped on the whole outer surface of the product 700 to be protected, and may be set according to the specific shape of the product 700 to be protected. For example, part of the outer surface (such as the back, the top or the bottom) of the product 700 to be protected does not need to be specially protected, the protecting piece 501 can not cover the outer surfaces which do not need to be specially protected, and the cost can be saved on the premise of achieving protection; if the outer surface of the product 700 to be protected needs to be protected, the protecting members 501 need to be covered on the outer surfaces which do not need to be protected in particular, so as to protect the product 700 to be protected effectively.

The product 700 to be protected in this embodiment of the present application may be provided with a peripheral side surface, and accordingly, the plurality of protection pieces 501 may enclose a protection cavity that is matched with the peripheral side surface and is used for accommodating the peripheral side surface, that is, the protection pieces 501 may be only coated on the peripheral side surface of the product 700 to be protected, so as to form a protection layer that only protects the peripheral side surface of the product 700 to be protected.

Of course, the product 700 to be protected may also be provided with a top portion connected to the top end of the peripheral side surface and a bottom portion connected to the bottom end of the peripheral side surface, and accordingly, the plurality of protecting members 501 may enclose a protecting cavity matched with the outer surface of the product 700 to be protected, that is, the protecting members 501 may be coated on all the outer surfaces of the product 700 to be protected, so as to form a protecting layer for protecting all the outer surfaces of the product 700 to be protected.

Each guard 501 or a portion of the guard 501 in this embodiment may be provided with a weight-reducing portion 5014, and the weight-reducing portion 5014 may be in a groove shape or a hole shape, so as to further reduce the amount of the guard 501 and reduce the amount of the packing material.

In transporting the product 700 to be protected, each of the protection pieces 501 may be assembled on the outer peripheral surface to be protected first, and then each of the protection pieces 501 may be connected as a unit. In addition, the inner side surface of each protection piece 501 in the embodiment of the present application may be matched with the shape of the covered part of the product 700 to be protected, so that the product 700 to be protected may be effectively protected, while the outer side surface of each protection piece 501 preferably forms a relatively smooth surface, and an operation portion for holding may be provided on the outer side surface of the protection piece 501, and the operation portion may be in a hole shape or a groove shape, which is not limited herein.

In some embodiments, the coupling 400 of the force transfer structure 10 of two adjacent shields 501 are inclined about different needle directions. I.e. the topology of the force transmitting structure 10 on adjacent two shields 501 is different.

As shown in fig. 16, the transmission paths are selected in combination with the two different topological phases of the force transfer structure 10, thus paving the way for exploring the design of devices such as splitters and switches. The cell comprising a counter-clockwise (clockwise) interlayer coupling is denoted a (B) from top to bottom. It is predicted that 4 edge states will be generated at the AB interface, enabling the construction of complex network manipulation elastic waves. Splicing a and B together designs a topology device that contains four ports. The source is placed at the position of port 1, with the left and right sides of the sample being the absorption boundaries, reducing reflection. The width and height of the sample can be adjusted. As shown in fig. 17, we calculate the energy profile of port 2 to port 4 as a function of height. It can be seen that port 3 and port 4 show a tendency to fluctuate with the change in height as a result of the coupling of the two edge states at the AB interface, where the group velocities are positive. In addition, port 2 has substantially no energy inflow due to spin and momentum binding.

To experimentally verify the phenomenon of path selection, we produced three samples, with heights h=14a, 16a and 18a, respectively. We observe that when h=14a, almost all of the elastic wave energy flows into port 3. When H increases to 16a, energy can be transferred to 3 and 4. Further, when the height H is increased to 18a, almost all the energy flows into the port 4. As shown in fig. 18, the experimental and simulated field patterns exhibited good consistency, and it was also demonstrated that adjusting the height of the sample could adjust the propagation of the elastic wave.

Fig. 18 selective transmission of elastic edge state multi-topology channels. c-H, heights h=14a, 16a and 18a respectively. Pentagram represents a point source and arrow indicates the direction of edge state propagation. Finally, we combine the topological valley structure with the wrapper. Since the contact time of the angle with the ground is substantially determined when the product falls, an elastic wave of a specific frequency will be generated. For the traditional packaging structure, energy is often concentrated at the angular position or transmitted to the inside of the packaging structure when angular drop occurs, so that the foam 100 'is often required to be thicker in size to protect products from being damaged, the structure is designed for the foam 100' with the topological valley structure, two sides of a rib are composed of opposite valley topological phases, and a topological protection boundary state is formed at an interface, so that the energy at the angular position is guided to spread along the rib, the excessive accumulation of the energy at the angular position is avoided, and the packaging structure is prevented from being damaged.

Of course, in addition to this, two adjacent shields 501 may be provided with the same topological phase of the force transmitting structure 10, in which case the elastic waves are transmitted along the edges of the force transmitting structure 10.

In some embodiments, the guard 501 is provided with a plurality of force transmitting structures 10, the plurality of force transmitting structures 10 being arranged in a matrix. The bodies 200 of the plurality of force transmitting structures 10 are spliced in a matrix to form the guard 501. The force transmission structure 10 is made of elastic meta-material such as foam 100', which is an artificially designed structure widely used in non-destructive inspection, guided wave, information processing, etc. methods not found in nature to manipulate elastic waves. However, in conventional electromagnetic media, the wave transmission is inevitably affected by backscattering due to bending and the presence of imperfections. In recent years, with the discovery of topological insulators in condensed state physics, a broad search has been made for topological elastic metamaterials that protect efficient transportation of boundary modes.

Specifically, the body 200 is rectangular, the long side of the body 200 is spliced with the long side of another body 200, and the wide side of the body 200 is spliced with the wide side of another body 200, so that the plurality of force transmission structures 10 are arranged in a matrix.

In two-dimensional structures, there are two types of topologically elastic metamaterials. The first has chiral boundary states, and the piezoelectric material is generally used for breaking the symmetry of time reversal so as to simulate a quantum abnormal Hall insulator. The introduction of active components can greatly increase the complexity of the system. Another type, similar to quantum spin (valley) hall insulators, has been implemented in multi-scale elastic metamaterials with spiral interface states that are time-reversed symmetric. It is worth noting that the full vector nature of the elastic wave equation has not been fully considered in these systems. The interface states are typically localized on domain walls between two different topological phases. Whether elastic metamaterials in continuous media can create topological boundary states at single phase boundaries has been a long felt problem.

Under the condition of angular drop, the corner foam 100' of the package assembly 500 is easy to collect energy and concentrate stress, so that the package structure is damaged, and the protected product is damaged, thereby causing additional loss. By analyzing the strength of the package assembly 500, it was found that the structural assembly had stronger strength in both the body and the ribs. The impact energy of a conventional package propagates along the body, so that sufficient thickness is required to absorb energy to protect the product.

According to the embodiment of the application, the force transmission structure 10 is arranged on the part of the foam 100 'of the packaging assembly 500, and the boundary of a single topological phase or two opposite topological phases are spliced to form an interface (namely the edge 5013), so that elastic waves generated during angle drop can be fully transmitted along the edge 5013, damage to products caused by structural damage or excessive elastic waves transmitted to the foam 100' due to energy aggregation near the angle is avoided, and further, the design of an extremely thin packaging buffer material can be used, the using amount of packaging materials is reduced, the packaging size is reduced, the container loading amount is increased, and the sea cost is reduced.

In some embodiments, the package assembly 500 further includes a support body 600, where the support body 600 is wrapped around the outer surface of the protection member 501. The supporting body 600 may be a corrugated carton, and the outer surface of the protecting member 501 may be wrapped to fix and protect the protecting member 501.

In the transportation, setting up in the supporter 600 in the supporter outside the supporter can protect the supporter on the one hand, reducible supporter receives the impact force to reduce the supporter and take place cracked phenomenon, if certain protector 501 of supporter takes place to break, the supporter 600 that sets up in the supporter outside the supporter still can play the supporting role to the fracture position of supporter, prevents that the fracture position from taking place to shift, in order to exert the comprehensive protection ability of package assembly 500 to the maximum extent, has fine practical value.

In some embodiments, the external support 600 may include a corrugated or cardboard box, which wraps around the outer surface of the protective body to perform a primary protection function, and may provide an assembly space for the integral protective member 501, so as to support the integral protective body, and avoid the damage of the protective member 501 caused by collision and splitting, so as to perform a good protection function on the product 700 to be protected.

When the product 700 to be protected is transported, the protecting body may be assembled on the outer circumferential surface of the product 700 to be protected, and then the supporting body 600 may be sleeved on the protecting body. In addition, in this application embodiment, the medial surface of each protector 501 matches with the appearance of the position of the product 700 that waits to protect of cover, and the lateral surface of each protector 501 and hold the inboard portion plane contact in chamber, after waiting to protect product 700 to assemble in package assembly 500, can accomplish the zero clearance between supporter 600 and the protector and between protector and waiting to protect product 700 to can play the effect of firm protection to wait to protect product 700, further improve the protection effect of waiting to protect product 700.

In connection with fig. 19, the accommodating cavity in the embodiment of the present application may be provided with an opening 601 for accommodating the protection body, that is, after the product 700 to be protected is assembled into the support body 600, the support body 600 assembled with the product 700 to be protected may enter the accommodating cavity of the support body 600 from the opening 601, and then the opening 601 of the support body 600 may be closed.

In some embodiments, the opening 601 has an opening area not larger than the circumferential cross-sectional area of the shielding body, so that when the shielding body is accommodated in the accommodating cavity, the shielding body can prop up the accommodating cavity, and the shielding body is tightly attached to the inner wall of the supporting body 600. That is, when the protection body is accommodated in the accommodating cavity, the negative gap between the protection body and the supporting body 600 can further improve the integrity of the protection body, so as to prevent the occurrence of the phenomenon that the product 700 to be protected cannot be effectively protected due to the loosening of the protection body in the transportation process as much as possible.

In this embodiment, when the protection body is accommodated in the accommodating cavity, the gap between the protection body and the support body 600 is not less than-2 mm, that is, along the same direction perpendicular to the center line of the accommodating cavity, the difference between the sizes of the protection body and the accommodating cavity is not greater than 4mm, so as to improve the firmness of the protection body in the accommodating cavity of the support body 600 while facilitating the assembly of the protection body in the accommodating cavity of the support body 600.

Because this package assembly 500 includes the supporter 600 that holds above-mentioned protection body, in the transportation, the supporter 600 that sets up in the protection body outside can protect the protection body on the one hand, and the impact that reducible protection body received to reduce the cracked phenomenon of protection body, if the certain protector 501 of protection body takes place to fracture, the supporter 600 that sets up in the protection body outside still can play the supporting role to the fracture position of protection body, prevents that the fracture position from taking place to shift, in order to exert the comprehensive protective ability of package assembly 500 to the maximum extent, has fine practical value.

The foam 100' selected for the related art package assembly 500 has a large thickness and a corresponding large outer package size. Taking an oven as an example, the cost of single maritime transportation of the oven in the related technology is up to 355 yuan, and the packaging assembly 500 shown in the embodiment of the application can be used for improving the boxing amount from the original 216 boxes to 304 boxes, and each maritime transportation is reduced by 103 yuan, so that the generation cost and the transportation cost can be greatly reduced, and the packaging assembly has good practical value and economic value.

Under the corner drop condition, the packaging assembly 500 is easy to collect energy and concentrate stress of the corner foam 100', so that the packaging structure is damaged, and the protected product is damaged, so that additional loss is caused. As can be seen from the strength analysis of the package assembly 500, the body 200 and the ribs of the package assembly 500 have strong strength. The impact energy of the related art package assembly 500 propagates along the body 200200, and thus requires a sufficient thickness to absorb energy to protect the product, thereby increasing the production cost of the package assembly 500.

The force transmitting structure 10 is integrated with the package. Since the contact time of the angle with the ground is substantially determined when the product falls, an elastic wave of a specific frequency will be generated. For conventional packaging structures, the energy tends to concentrate at the corners or transfer into the body of the packaging structure as the corners occur, and thus a thicker size of foam 100' is often required to protect the product from damage. Fig. 13 is a schematic structural diagram of a package assembly 500 according to an embodiment of the present application, and in conjunction with fig. 13, the package assembly 500 shown in fig. 13 employs the foam 100' design of the force transmission structure 10 described above, wherein the two sides of the rib are formed by opposite valley topologies, and boundary states of topological protection are formed at the interface, so that energy guiding the angular position propagates along the rib, and excessive accumulation of energy at the angular position is avoided, and the package assembly 500 structure is prevented from being damaged.

The embodiment of the application also provides an electrical component 20, where the electrical component 20 includes electrical equipment and the above-mentioned packaging component 500, and the plurality of protection pieces 501 are wrapped on the outer surface of the electrical equipment.

Based on the above-mentioned package assembly 500, the embodiment of the present application further provides an electrical assembly 20, where the electrical assembly 20 includes an electrical device and the above-mentioned package assembly 500, and the electrical device is wrapped in the protective body of the package assembly 500.

The electrical component 20 with the packaging component 500 can avoid excessive accumulation of energy at the corner of the protective body to a certain extent, prevent the packaging component 500 from being damaged, so as to achieve the purpose of protecting products, reduce the material consumption of the corresponding protective piece 501, improve the light weight of the packaging component 500, further reduce the packaging cost, and have good practicability and economy. The electrical equipment can be household appliances such as ovens, microwave ovens, washing machines and the like.

In addition, in the related art, some household appliances (such as air conditioners) are provided with a filtering net cover to filter fresh air introduced by a fan, but the air conditioners are mostly placed vertically, and the quantity of the installed air conditioners is small due to limited installation space. Based on this, this embodiment stacks a plurality of air conditioners, and the filter screen panel of air conditioner up, because the air conditioner of below needs to support the air conditioner of top, needs to make the filter screen panel have higher support strength, and current filter screen panel can not satisfy this user demand.

Based on this, this embodiment of the application is applied to the filter screen cover with above-mentioned force transmission structure 10, is provided with above-mentioned force transmission structure 10 promptly in the lateral part of the frame of filtering the screen panel, has above-mentioned force transmission structure 10's filtering the screen panel effort, and dispersible is to filtering the screen panel effort to make filtering the screen panel have better supporting strength, thereby can make the air conditioner install through the mode of stacking, with the air conditioner of installing more quantity in limited space, has fine practicality. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A force transmission structure, comprising:

two bodies (200);

two mass blocks (300) respectively protruding on the two bodies (200);

and a coupling member (400) connecting the two bodies (200).

2. The force transmission structure according to claim 1, wherein the coupling member (400) comprises a plurality of coupling columns (401), each coupling column (401) being connected to two of the bodies (200), respectively, each coupling column (401) being arranged obliquely.

3. A force transmission structure according to claim 2, wherein a plurality of said coupling columns (401) are each arranged obliquely around the same clockwise direction.

4. The force transmission structure according to claim 2, characterized in that the projections of a plurality of the coupling columns (401) on any one of the bodies (200) are polygonal.

5. A force transmission structure according to claim 2, characterized in that the coupling columns (401) are cylindrical, the diameter of the coupling columns (401) is 0.5 mm-1.5 mm, and the distance between any non-adjacent two coupling columns (401) is 4 mm-8 mm.

6. The force transmission structure according to any one of claims 1 to 5, characterized in that the mass (300) has a connection face, the body (200) has a mounting face, the connection face is connected with the mounting face, and the area of the connection face is greater than or equal to one third of the area of the mounting face.

7. A force transmission structure according to any one of claims 1-5, characterized in that the distance between two bodies (200) is 2-5 mm, the thickness of the bodies (200) is 0.5-2 mm, and the thickness of the mass (300) is 2-6 mm.

8. The force transmitting structure according to any one of claims 1-5, characterized in that the thickness of the mass (300) is greater than or equal to the thickness of the body (200).

9. The force transmission structure according to any one of claims 1-5, characterized in that the body (200) is rectangular, the side length of the body (200) is 8-12 mm, the mass (300) is rectangular, and the side length of the mass (300) is 5-10 mm.

10. A force transmission structure according to any one of claims 1-5, characterized in that the coupling element (400) and the mass (300) are arranged on both sides of the body (200), respectively, the two masses (300) being arranged opposite each other.

11. A packaging assembly comprising a plurality of shielding members (501), two adjacent shielding members (501) being connected, said shielding members (501) being wrapped around the outer surface of an article to be packaged, at least one of said shielding members (501) being provided with a force transmitting structure (10) according to any one of claims 1-10.

12. The packaging assembly according to claim 11, wherein the coupling members (400) of the force transmitting structures (10) of two adjacent shields (501) are inclined about different needle directions.

13. The packaging assembly according to claim 11, wherein the guard (501) is provided with a plurality of the force transmitting structures (10), the plurality of force transmitting structures (10) being arranged in a matrix.

14. The packaging assembly according to any one of claims 11-13, the packaging assembly (500) further comprising a support body (600), the support body (600) being wrapped around an outer surface of the packaging assembly (500).

15. An electrical assembly comprising an electrical device and a packaging assembly (500) according to any one of claims 11-14, wherein a plurality of the protective members (501) are wrapped around an outer surface of the electrical device.

16. A filter screen, characterized in that the filter screen is provided with a force transmission structure (10) according to any one of claims 1-10.

17. An electrical device comprising the filter screen of claim 16.