Specific embodiment
To make those skilled in the art more fully understand technical solution of the present invention, come with reference to the accompanying drawing to the present invention
The solar battery splicing component of offer, terminal box, solar battery splicing apparatus and it is used for solar battery splicing apparatus
Connection status inspection method be described in detail.
Fig. 1 is solar battery splicing component (hereinafter may be simply referred to as splicing component) 1a of embodiment according to the present invention
Schematic top plan view.As shown in Figure 1, splicing component 1a has the form of plate on the whole.In the present embodiment, the shape of plate is
Square.
It is located at two angles in four corners 101a, 102a, 103a and 104a in the plate face of the side of splicing component 1a
In the region of portion 101a and 103a, it is respectively disposed with a pair of of output contact and a pair of of auxiliary contact.
Specifically, being disposed with a pair of of output touching in plate face in the region (example of first area) of corner 101a
Point 11a, 12a and a pair of of auxiliary contact 13a, 14a, and it is located at the region of the corner 103a with corner 101a diagonally in plate face
In (example of second area), it is disposed with another pair output contact 15a, 16a and another pair auxiliary contact 17a, 18a.Wherein, defeated
Contact 11a and 15a is the positive output contact of splicing component 1a to positive potential having the same each other, output contact out
12a and 16a is the cathode output contact of splicing component 1a to negative potential having the same each other.Auxiliary contact 13a,
14a, 17a, 18a without anode, cathode point (although the auxiliary contact that will be close to positive output contact in the figure be marked with+number and incite somebody to action
Close to cathode output contact auxiliary contact be marked with-number, but this is intended merely to be identified auxiliary contact).It is located at as shown in figure 1
It shows to dotted line in plate face, such as in direct-connected mode inside being carried out when encapsulating splicing component 1a, makes a pair of auxiliary
It helps contact 13a, 18a to be electrically connected to each other and another pair auxiliary contact 14a, 17a is made to be electrically connected to each other.But when splicing component 1a not with
When terminal box or load connection, auxiliary contact 13a, 18a are electrically insulated with auxiliary contact 14a, 17a and (are not electrically connected), and each auxiliary
Contact 13a, 14a, 17a, 18a is helped to be electrically insulated with any output contact 11a, 12a, 15a, 16a.Since solar battery is usual
For multilayered structure, therefore above-mentioned electrical connection, electrical isolation relationship are easily achieved, and are no longer described in detail herein.
Optionally, as shown in Figure 1, on splicing component 1a, two positive output contact 11a and 15a, two cathode outputs
Contact 12a and 16a, two auxiliary contact 13a and 14a and two auxiliary contact 17a and 18a are respectively relative to splicing component 1a
Plate face in a manner of diagonal crossed-symmetrical (in the present embodiment and centrosymmetric mode) arrange.In other words, for
Each output contact and each auxiliary contact, to the distance away from itself nearest plate face edge and to away from itself secondary close plate
The distance at face edge is all constant.For example, as shown in Figure 1, output contact 11a to the distance away from its nearest plate face edge be b,
It is a to the distance away from next close plate face edge, other output contacts are also all to the distance away from itself nearest plate face edge
B is also a to the distance away from itself secondary close plate face edge.
Further optionally, auxiliary contact 13a, 14a, 17a, 18a is arranged in than output contact 11a, 12a, 15a, 16a more
Close to the position on the vertex of corresponding corner 101a, 102a, 103a and 104a, and therefore have than output contact 11a, 12a,
15a, 16a small size.
In addition, being covered with the thin-film electro for being converted into electric energy for receiving light in the plate face of splicing component 1a
Pond (not shown).
It should be noted that output contact that hull cell can be covered on splicing component 1a and side where auxiliary contact
In plate face.Optionally, solar energy film can also be covered on splicing component with output contact and auxiliary contact opposite side
In plate face.
Fig. 2 shows four same splicing components being stitched together in a manner of similar splicing ceramic tile (or mosaic)
1a to 1d.Hereinafter, the element on different splicing components is distinguished with the letter at appended drawing reference end.As shown in Fig. 2, four
Splicing component 1a to 1d is stitched together near a convergent point, thus the respective corner four splicing component 1a to 1d
101a, 102c, 103d and 104b are focused at the convergent point attachment, and near the convergent point, and there are four anode output touchings
Totally 16 contacts point 11a to 11d, four cathode output contact 12a to 12d, 8 auxiliary contact 13a to 13d and 14a to 14d.
Therefore, contact located adjacent one another is electrically connected for example, by terminal box etc., each solar battery splicing component can be realized
Between different series, parallel connection relationships.
Fig. 3 shows the perspective view of the terminal box 2 according to the present embodiment.Terminal box 2 can be on the whole has certain thickness
The plate shape box of degree.In the present embodiment, the shape of plate is round.Optionally, the shape of the plate of terminal box 2 can be square,
The other shapes such as rectangle.Furthermore terminal box 2 can have columnar shape rather than plate-like shape.
Terminal box 2 is provided with multiple wiring contacts for example using its bottom surface as connection surface in the connection surface.Wiring
Contact includes positive terminal contact 21a to 21d, negative terminal contact 22a to 22d and auxiliary connection contact 23a to 23d, 24a
To 24d.These wiring contacts are circumferentially arranged to four groups along connection surface, and every group includes four wiring contacts.For example, such as Fig. 3
Shown, one group of wiring contact in connection surface left area includes positive terminal contact 21b, negative terminal contact 22b
With two auxiliary connection contact 23b and 24b.Four groups of wiring contact centers are symmetrically arranged in connection surface, each group of wiring
Contact has same function.
Terminal box 2 at least partly (can operationally will can be disconnected to) and be electrically connected two-by-two in wiring contact.Specifically
It says, inside terminal box 2, is provided with the multiple electric switches that each wiring contact can be operationally electrically connected two-by-two
(not shown).Wherein each electric switch is for a wiring contact and another wiring contact to be operationally electrically connected.
(that is, corresponding with same splicing component) positive terminal contact and negative terminal contact as special case, in the same area
Between (for example, between positive terminal contact 21a and negative terminal contact 22a) be not provided with electric switch, to avoid short circuit.These electricity
Switch can have the form of wire jumper, and in the jumper holders (not shown) being located in terminal box 2.Optionally, these electric switches
It can be physical switch, be manually attached/disconnect (for example, by key on terminal box surface) by user;It can also be with
It is electronic switch, by semiconductor devices, by from terminal box 2 or the externally input control signal of terminal box 2 controls on-off.
Furthermore, it is possible to which 16 wiring contacts that the electric switch of terminal box is constructed to allow in connection surface are arbitrarily interconnected, then
Forbid the connection between some of them wiring contact by way of software configuration, such as forbids the positive terminal in the same area
Connection between contact and negative terminal contact.In addition, being directed to each terminal box, a limited number of set can be only provided and typically connect
Line contact connection scheme, to reduce the quantity of electric switch and user is facilitated to select.
In addition, being also provided with the potentiometer (not shown) for measuring the voltage between wiring contact in terminal box 2.Hold
It is intelligible to be, different wiring contacts can be connected to by same potentiometer by the switching of each electric switch of control.Separately
Outside, indicating device (not shown) has can be set in terminal box 2, and indicating device is used to cooperate with potentiometer, for example to detect
During the connection status of solar battery splicing apparatus, instruction is provided a user when discovery electrical connection is abnormal (will be
It is detailed below).Indicating device can be the devices such as screen, indicator light, buzzer, loudspeaker, be also possible to wired or nothing
The mode of line issues the device of instruction information to external equipment (such as mobile phone, monitor etc.).Optionally, in the connection of terminal box
On surface, the locating piece (for example, baffle) for being positioned to splicing component can be set, be also provided with for locking
Determine the locking mechanism of splicing component.Optionally, it is flowed through between wiring contact may be provided for measuring in terminal box 2
The galvanometer of electric current, the fuse for preventing short circuit or overload, the communication for being communicated with external equipment or other terminal boxes
Device, for calculating reasonable line arrangement mode to set calculating device of the on-off of electric switch etc. automatically.
When terminal box 2 is connect with a splicing component, or be stitched together near the same convergent point two
When connecting to four splicing components, terminal box 2 covers a corner of each splicing component, and each splicing component is connect
Positive output contact, cathode output contact and the auxiliary contact on corner that wire box 2 covers are corresponding in terminal box 2 respectively
Positive terminal contact, negative terminal contact and the electrical contact of auxiliary connection contact.
In order to preferably ensure electrical connection, the side of output contact and the auxiliary contact of splicing component 1 to engage can be made
Wiring contact in formula and terminal box is in electrical contact.For example, output contact/auxiliary contact of splicing component can be designed to indent
Formula, and by the wiring contact design of terminal box at raised type, so that the wiring contact of terminal box can be inserted into the output of splicing component
In contact/auxiliary contact.In addition, output contact, auxiliary contact, all or part of in wiring contact can be by magnetic conductives
Element is made, so as to by output contact and/or auxiliary contact the connecing in a manner of magnetic and in terminal box for making splicing component 1
The electrical contact of line contact.In addition, output contact, auxiliary contact, all or part of in wiring contact can have spring or bullet
Property part form, so as to ensure more stable electrical contact by the effect of elastic force.
Fig. 4 is to show terminal box 2 shown in Fig. 3 to be connected to four to be stitched together splicing component 1a shown in Fig. 2 extremely
On 1d, to form the schematic plan of solar battery splicing apparatus.By four splicing component 1a to 1d and terminal box 2
In the solar battery splicing apparatus of composition, terminal box 2 covers a corner of each splicing component 1a to 1d, and terminal box
2 positive terminal contact 21a to 21d, negative terminal contact 22a to 22d and auxiliary connection contact 23a to 23d, 24a to 24d
Respectively with positive output contact 11a to 11d, cathode output contact 12a to 12d and auxiliary contact 13a to 13d, 14a to 14d
Electrical contact.In such a case, it is possible to for example using a pair of of auxiliary contact 17a, 18a of the upper left corner 103a of splicing component 1a as
Load connecting pin.By setting terminal box in electric switch on-off, can be realized four splicing component 1a between 1d not
Same series, parallel mode, so as to export different voltage U by loading connecting pin.
Fig. 5 is the schematic diagram for showing the status of electrically connecting of solar battery splicing apparatus shown in Fig. 4, wherein is concealed
Terminal box 2, and show between the different output contacts realized using terminal box 2 and between output contact and auxiliary contact
Electrical connection.In example shown in Fig. 5, four splicing component 1a to 1d are one another in series, thus by the output of load connecting pin
Voltage is about the sum of the voltage of four splicing components (4 pieces of solar batteries).
Fig. 6 is the electrical connection shape for showing the solar battery splicing apparatus being made of ten splicing components and three terminal boxes
The schematic diagram of state.It will be appreciated by those skilled in the art that can will be spliced using splicing component provided by the invention and terminal box
Component is spliced into other patterns, cooperates with corresponding terminal box, realizes different power source designs.
In the present invention, the positive output contact of each of each splicing component, cathode output contact and auxiliary contact tool
Have and is connect with other splicing component anode output contacts, cathode output contact, auxiliary contact by terminal box to constitute certain one kind
The ability of the connection relationship in parallel or series of particular form.For the series-parallel pass of the splicing component in terminal box coverage area
System substantially gives a variety of or in parallel or series connection or series-parallel by selecting different switching mode and the mode of connection
Connection path, different connection paths can form different patterns.It can be createed using the auxiliary contact regardless of positive and negative anodes
More combinations.Specific pattern is applied by deformation or abstract children's initiation, amusement, education, style etc. of can be used for
Occasion.For example, solar battery splicing apparatus of the invention can also be extended to the application of Middle School Physics circuitry and middle school's number
The application range of splicing component and terminal box of the invention has been expanded in the relevant field such as the permutation and combination in.
In the present invention, each splicing component and each terminal box can be made into standard component, using standard size dimensions,
The working method of different capacity grade and different voltages output, tool may be implemented in the contact of standard arrangement mode and connection type
There are good compatibility, expansion and easily contained property, and reduces the cost manufactured on a large scale.It is alternatively possible to by difference
Application scenarios provide the splicing component for being suitable for the multiple standards electrical specification of terminal box of same specification, to further expand
Application range of the invention.
Splicing component and terminal box will realize the electrical connection of physical significance, it is desirable to be able to detect the contact of terminal box with
Whether the electrical contact (that is to say the physical contact between contact) between the contact of splicing component is normal, so as to the solar energy for next step
The assembling of battery splicing apparatus lays the foundation.In the present embodiment, the electrical contact is determined by the way of voltage measurement whether
Normally.
Fig. 7 (a) and Fig. 7 (b) is the schematic diagram for showing the connection status inspection method for solar battery splicing apparatus.
Wherein, for convenience's sake, splicing component is not drawn by actual arrangement mode with the contact in terminal box, and diagrammatically only
Show the connection relationship between them.
By taking splicing component 1a as an example, when splicing component 1a to be installed in terminal box 2 and terminal box 2 ' simultaneously, splicing
At a corner 101a of component 1a, positive output contact 11a, cathode output contact 12a and auxiliary contact 13a, 14a respectively with
Positive terminal contact 21a, the negative terminal contact 22a and auxiliary connection contact 23a, 24a of terminal box 2 are coupled;In splicing component
At another corner 103a of 1a, positive output contact 15a, cathode output contact 16a and auxiliary contact 17a, 18a respectively with connect
Positive terminal contact 25d ', the negative terminal contact 26d ' and auxiliary connection contact 27d ', 28d ' of wire box 2 couple (2 He of terminal box
Other wiring contacts on 2 ' are not shown), which is indicated by the dotted line in Fig. 7 (a) and Fig. 7 (b).In order to detect coupling
Whether the electrical contact of formation is normal, implements step shown in Fig. 7 (a) and Fig. 7 (b) respectively.
Fig. 7 (a) is the positive output contact 11a, 15a for showing detection terminal box 2,2 ' and splicing component 1a, cathode output
Contact 12a, 16a electrical contact whether the schematic diagram of normal step.As shown in Fig. 7 (a), pass through the potentiometer in terminal box 2 '
Positive terminal contact 25d ', the negative terminal contact 26d ' of measurement and positive output contact 15a, cathode output contact 16a coupling
Between voltage UM1- electrodeIf voltage UM1- electrodeLess than scheduled threshold voltage UThreshold value, then illustrate to be in electrical contact it is abnormal, thus
Normal electrical connection is not implemented.At this moment, the abnormal instruction of electrical connection is issued by the indicating device of terminal box 2 '.It is similar
Ground can be measured by the potentiometer in terminal box 2 and be connect with the anode of positive output contact 11a, cathode output contact 12a coupling
Voltage U between line contact 21a, negative terminal contact 22aM2- electrodeIf voltage UM2- electrodeLess than scheduled threshold voltage
UThreshold value, then illustrate to be in electrical contact it is abnormal, so that normal electrical connection be not implemented.At this moment, it is sent out by the indicating device of terminal box 2
It is electrically connected abnormal instruction out.Optionally, if the positive output contact 11a of splicing component 1a, cathode output contact 12a not
A part of circuit needed for constituting, that is, positive output contact 11a, the cathode for not needing detection terminal box 2 and splicing component 1a are defeated
Whether the electrical contact of contact 12a is normal out, then can save detection UM2- electrodeThe step of.
Fig. 7 (b) is the electricity for showing auxiliary connection contact 13a, 14a, 17a, 18a of detection terminal box 2,2 ' and splicing component
Contact whether the schematic diagram of normal step.As shown in Fig. 7 (b), positive output contact 15a, cathode output touching are being detected
Point 16a and positive terminal contact 25d ', negative terminal contact 26d ' the normal situation of electrical contact under, by terminal box 2 '
Electric switch (such as wire jumper, as shown in the connecting line 41,42 in figure) by terminal box 2 ' respectively with splicing component 1a anode it is defeated
Positive terminal contact 25d ', the negative terminal contact 26d ' of contact 15a, cathode output contact 16a coupling are respectively electrically connected to out
Auxiliary connection contact 28d ', the 27d ' coupled respectively with auxiliary contact 18a, 17a of splicing component 1a.At this point, due to splicing group
Auxiliary contact 17a, 18a of part 1a is electrically connected with auxiliary contact 14a, 13a respectively, therefore auxiliary contact 17a and auxiliary contact 14a
Current potential it is identical, auxiliary contact 18a is identical as the current potential of auxiliary contact 13a.Wiring is measured by the potentiometer in terminal box 2 '
The voltage between auxiliary connection contact 23a, 24a of auxiliary contact 13a, 14a of splicing component 1a coupling respectively of box 2 '
UM2- auxiliaryIf voltage UM2- auxiliaryLess than scheduled threshold voltage UThreshold value, then illustrate auxiliary contact 13a, 14a, 17a, 18a with it is auxiliary
Adjuvant grafting line contact 27d ', 28d ', the electrical contact between 23a, 24a are abnormal, so that normal electrical connection be not implemented.At this moment,
The abnormal instruction of electrical connection is issued by the indicating device of terminal box 2 '.
If in the step shown in Fig. 7 (a) and Fig. 7 (b), not finding that electrical connection is abnormal, that is, UM1- electrode≥UThreshold value、
UM2- electrode≥UThreshold valueAnd UM- auxiliary≥UThreshold value, then show that the electrical connection detected between terminal box 2,2 ' and splicing component 1a is normal.At this
In the case of kind, all electric switches in terminal box 2,2 ' can be disconnected and (if being equipped with jumper holders, jumper holders interconnector be broken
Open), it is in standby terminal box 2,2 ', waits peripheral operation instruction.Optionally, when detecting to be electrically connected normal,
The normal instruction of electrical connection can be issued by the indicating device of terminal box 2 ' (or both terminal boxes 2 and 2 ').Optionally, as long as
Detect UM1- electrode≥UThreshold valueAnd UM- auxiliary≥UThreshold value, regardless of whether having detected UM2- electrode、UM2- electrodeWhether U is less thanThreshold value, can at least by
All switches in terminal box 2 ' disconnect, and are in standby terminal box 2 '.
In addition, can also be limited as follows for the connection type of junction box: 1) the open-circuit voltage values needs after group string
Less than safe voltage value UOpen<USafety;2) current value after group string needs to be less than safe current value IShort<ISafety.In addition, every kind of cloth
Line mode should consider in conjunction with combined factors such as practical application, size, internal component type selecting and the electromagnetic interferences of terminal box.
The connection status inspection method for solar battery splicing apparatus provided through this embodiment, can accurately know
Other contact connection status provides solution for the component production and splicing application of low cost, designs and solve for splicing group string
The problem of connection reliability judges.
It is understood that the principle that above embodiments are intended to be merely illustrative of the present and the exemplary implementation that uses
Example, however the present invention is not limited thereto.For those skilled in the art, spirit of the invention is not being departed from
In the case where essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
For example, although in the above-described embodiments, the shape (that is, shape of plate face) of the plate of splicing component is pros
Shape, however, the shape of plate is also possible to regular hexagon, equilateral triangle, diamond shape, rectangle or other shapes.For example, working as the shape of plate
When shape is regular hexagon, splicing component can be spliced into honeycomb pattern, and terminal box can simultaneously at most three splicing groups
Part connection.It wherein, should include the case where its corner is fillet or chamfering when the shape of plate is polygon.
In addition, although in the above-described embodiments, when splicing component is implemented to splice, the edge of adjacent splicing component is each other
Adjoin (for example, as shown in Figure 2), however, can also be deposited between the edge of contiguous concatenation component as shown in the variation example of Fig. 8
In certain gap.
In addition, although in the above-described embodiments, describing the solar battery splicing dress including at least four splicing components
It sets.But the quantity of splicing component is without being limited thereto, and solar battery splicing apparatus can only include one, two or three splicing group
Part.Furthermore, it is possible to according to the quantity of splicing component and the specific quantity for needing to select terminal box in series and parallel.
In addition, the solar battery splicing apparatus in the present invention may include except the splicing component in above-described embodiment and connecing
Device or module other than wire box.For example, may include in solar battery splicing apparatus several have output contact without
Splicing component with auxiliary contact.