CN211377882U - PFC and EMI integrated device applied to welding power supply - Google Patents
PFC and EMI integrated device applied to welding power supply Download PDFInfo
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- CN211377882U CN211377882U CN202020297375.XU CN202020297375U CN211377882U CN 211377882 U CN211377882 U CN 211377882U CN 202020297375 U CN202020297375 U CN 202020297375U CN 211377882 U CN211377882 U CN 211377882U
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- emi
- mode absorption
- common mode
- pfc
- absorption capacitor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The utility model discloses a be applied to welding power's PFC and EMI integrated device, including two sets of solid fixed splint, three-phase high frequency filter inductance and EMI integrated board, three-phase high frequency filter inductance installs in two sets of between the solid fixed splint, EMI integrated board fixed mounting is two sets of solid fixed splint's upper portion, input differential mode absorption capacitance, three-phase input terminal, common mode inductance, output differential mode absorption capacitance, output common mode absorption capacitance and switching terminal are installed on EMI integrated board's upper portion, input differential mode absorption capacitance closes on with three-phase input terminal, three-phase input terminal links to each other through taking a percentage of common mode inductance with the switching terminal, output differential mode absorption capacitance and output common mode absorption capacitance equally divide and do not close on with the switching terminal. The utility model discloses in integrating PFC and EMI to a device, provide a simple structure, reasonable in design, convenient to use's integrated device, reduce occuping of space.
Description
Technical Field
The utility model relates to a power factor correction and electromagnetic interference keep apart technical field, concretely relates to be applied to welding power's PFC and EMI integrated device.
Background
The english expression of PFC is called "Power Factor Correction" and means "Power Factor Correction", and the Power Factor refers to the relationship between the effective Power and the total Power consumption (apparent Power), that is, the ratio of the effective Power divided by the total Power consumption (apparent Power). Basically, the power factor can measure the effective utilization degree of power, when the power factor value is larger, the power utilization rate is higher, the EMI is called Electromagnetic Interference in english, and the interpretation is Electromagnetic Interference, which means that the work of electronic products can cause Interference to other peripheral electronic products.
However, the PFC and EMI devices currently on the market are independent products, which are inconvenient to use and occupy a large space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to welding power's PFC and EMI integrated device to the not enough of current product, with PFC and EMI integrated to a device in, provide a simple structure, reasonable in design, convenient to use's integrated device to solve the problem of proposing in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be applied to welding power's PFC and EMI integrated device, includes two sets of fixed splint, three-phase high frequency filter inductance and EMI integrated board, three-phase high frequency filter inductance installs in two sets of between the fixed splint, EMI integrated board fixed mounting is two sets of the upper portion of fixed splint, input differential mode absorption capacitance, three-phase input terminal, common mode inductance, output differential mode absorption capacitance, output common mode absorption capacitance and switching terminal are installed to the upper portion of EMI integrated board, input differential mode absorption capacitance closes on with the three-phase input terminal, three-phase input terminal links to each other through taking a percentage of common mode inductance with the switching terminal, output differential mode absorption capacitance and output common mode absorption capacitance equally divide and do not close on with the switching terminal, common mode inductance with output differential mode absorption capacitance constitutes common mode filter jointly.
Preferably, two sets of the main cross-section of looking of solid fixed splint all is the L shape setting, and two sets of the bolt hole has all been seted up to solid fixed splint's lateral part.
Preferably, the EMI board further has a power supply terminal mounted on an upper portion thereof.
Preferably, the input differential mode absorption capacitor, the output differential mode absorption capacitor and the output common mode absorption capacitor are all X2 or Y2 ampere-standard capacitors.
Preferably, the common mode inductor is formed by winding a plurality of strands of parallel copper wires on the outer side of a magnetic core, the magnetic core is a manganese-zinc ferrite magnetic ring, and the cross section area of the copper wires wound by the magnetic ring is 1.12mm2。
The passive filter capacitance parameter is as follows: 0.68pf, 275VAC, passive filter inductance parameter: the sectional area of the iron core is 16mm by 20mm, the iron core is made of 50WW470 silicon steel strips, the number of turns of winding of an inductor is 28, and the parameters of copper wires are as follows: 2.24 enameled copper wire.
To sum up, owing to adopted above-mentioned technique, the beneficial effects of the utility model are that:
the utility model discloses in, with PFC and EMI integrated to a device, provide a simple structure, reasonable in design, convenient to use's integrated device, reduce occuping of space.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a circuit diagram of the connection between the PFC and the EMI according to the present invention.
In the figure: 1. fixing the clamping plate; 2. a three-phase high-frequency filter inductor; 3. an EMI integration board; 4. inputting a differential mode absorption capacitor; 5. a three-phase input terminal; 6. a common mode inductor; 7. outputting a differential mode absorption capacitor; 8. an output common mode absorption capacitor; 9. a transfer terminal; 10. tapping; 11. bolt holes; 12. and a power supply terminal.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific situation of the specification.
The utility model provides a PFC and EMI integrated device applied to welding power supply as shown in figures 1-3, which comprises two groups of fixed clamping plates 1, three-phase high-frequency filter inductors 2 and an EMI integrated plate 3, wherein the three-phase high-frequency filter inductors 2 are arranged between the two groups of fixed clamping plates 1, the EMI integrated plate 3 is fixedly arranged on the upper parts of the two groups of fixed clamping plates 1, the upper part of the EMI integrated plate 3 is provided with an input differential mode absorption capacitor 4, a three-phase input terminal 5, a common mode inductor 6, an output differential mode absorption capacitor 7, an output common mode absorption capacitor 8 and a switching terminal 9, the input differential mode absorption capacitor 4 is close to the three-phase input terminal 5, the three-phase input terminal 5 is connected with the switching terminal 9 through a tap 10 of the common mode inductor 6, the output differential mode absorption capacitor 7 and the output common mode absorption capacitor 8 are both close to the switching terminal 9, the common mode inductor 6 and the output differential mode absorption capacitor 7 together form a common mode filter.
Concretely, it is two sets of the main cross-section of looking of solid fixed splint 1 all is L shape setting, and two sets of bolt hole 11 has all been seted up to solid fixed splint 1's lateral part, and bolt hole 11 makes things convenient for solid fixed splint 1 and external equipment's erection joint.
Specifically, the power supply terminal 12 is further mounted on the upper portion of the EMI board 3, and the power supply terminal 12 is used for connecting other external power supply cables.
Specifically, the input differential mode absorption capacitor 4, the output differential mode absorption capacitor 7 and the output common mode absorption capacitor 8 are all X2 or Y2 ampere-standard capacitors.
Specifically, the common mode inductor 6 is formed by winding a plurality of parallel copper wires on the outer side of a magnetic core, the magnetic core is a manganese-zinc ferrite magnetic ring, and the cross section area of the copper wires wound on the magnetic ring is 1.12mm2。
The passive filter capacitance parameter is as follows: 0.68pf, 275VAC, passive filter inductance parameter: the sectional area of the iron core is 16mm by 20mm, the iron core is made of 50WW470 silicon steel strips, the number of turns of winding of an inductor is 28, and the parameters of copper wires are as follows: 2.24 enameled copper wire.
The structure principle is as follows: when the integrated device is used, the PFC and the EMI are integrated into one device, the integrated device is simple in structure, reasonable in design and convenient to use, and space occupation is reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (5)
1. The utility model provides a be applied to welding power supply's PFC and EMI integrated device, includes two sets of solid fixed splint (1), three-phase high frequency filter inductance (2) and EMI integrated board (3), its characterized in that: the three-phase high-frequency filter inductor (2) is arranged between the two groups of fixed clamping plates (1), the EMI integration plate (3) is fixedly arranged at the upper parts of the two groups of fixing clamping plates (1), an input differential mode absorption capacitor (4), a three-phase input terminal (5), a common mode inductor (6), an output differential mode absorption capacitor (7), an output common mode absorption capacitor (8) and a switching terminal (9) are arranged at the upper part of the EMI integration plate (3), the input differential mode absorption capacitor (4) is adjacent to a three-phase input terminal (5), the three-phase input terminal (5) is connected with the switching terminal (9) through a tap (10) of the common-mode inductor (6), the output differential mode absorption capacitor (7) and the output common mode absorption capacitor (8) are respectively close to the switching terminal (9), the common mode inductor (6) and the output differential mode absorption capacitor (7) jointly form a common mode filter.
2. The PFC and EMI integrated device applied to a welding power supply of claim 1, wherein: two sets of the main cross-section of looking of solid fixed splint (1) all is the L shape setting, and two sets of bolt hole (11) have all been seted up to the lateral part of solid fixed splint (1).
3. The PFC and EMI integrated device applied to a welding power supply of claim 1, wherein: and a power supply terminal (12) is also arranged on the upper part of the EMI integration board (3).
4. The PFC and EMI integrated device applied to a welding power supply of claim 1, wherein: and the input differential mode absorption capacitor (4), the output differential mode absorption capacitor (7) and the output common mode absorption capacitor (8) are X2 or Y2 ampere-standard capacitors.
5. The PFC and EMI integrated device applied to a welding power supply of claim 1, wherein: the common mode inductor (6) is formed by winding a plurality of strands of parallel copper wires on the outer side of a magnetic core, the magnetic core is a manganese-zinc ferrite magnetic ring, and the sectional area of the copper wires wound by the magnetic ring is 1.12mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020297375.XU CN211377882U (en) | 2020-03-10 | 2020-03-10 | PFC and EMI integrated device applied to welding power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020297375.XU CN211377882U (en) | 2020-03-10 | 2020-03-10 | PFC and EMI integrated device applied to welding power supply |
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| CN211377882U true CN211377882U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564476A (en) * | 2020-12-01 | 2021-03-26 | 复旦大学 | Three-phase silicon carbide power semiconductor module integrating current sampling and EMI filtering |
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- 2020-03-10 CN CN202020297375.XU patent/CN211377882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564476A (en) * | 2020-12-01 | 2021-03-26 | 复旦大学 | Three-phase silicon carbide power semiconductor module integrating current sampling and EMI filtering |
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Effective date of registration: 20210318 Address after: 200331 1st floor, No.2 Lane 615, Fengdeng Road, Malu Town, Jiading District, Shanghai Patentee after: SHANGHAI DUOMU INDUSTRY Co.,Ltd. Address before: Floor 5, building 1, Tiansheng Industrial Park, intersection of century street and Minhang Road, Changchun Economic Development Zone, Jilin Province Patentee before: Changchun Shuangxi welding equipment Co.,Ltd. |