CN214256241U - MBB multi-grid line battery piece test fixture - Google Patents
MBB multi-grid line battery piece test fixture Download PDFInfo
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- CN214256241U CN214256241U CN202120429433.4U CN202120429433U CN214256241U CN 214256241 U CN214256241 U CN 214256241U CN 202120429433 U CN202120429433 U CN 202120429433U CN 214256241 U CN214256241 U CN 214256241U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a MBB multi-grid wire battery piece testing tool, which comprises a copper wire fixing mechanism, a driving mechanism and a testing mechanism, wherein the copper wire fixing mechanism presses down towards a positive copper plate on which a battery piece is placed; the copper wire fixing mechanism comprises a supporting frame formed by sequentially fixing a first connecting block, a second connecting block, a third connecting block and a fourth connecting block, the second connecting block and the fourth connecting block are arranged in a mirror symmetry mode, a negative copper block is arranged on the inner sides of the second connecting block and the fourth connecting block, and a plurality of force releasing mechanisms which are distributed linearly are arranged on the outer sides of the second connecting block and the fourth connecting block; a plurality of negative copper wires which are arranged in parallel are arranged below the supporting frame, the negative copper wires are in contact connection with the lower sides of the two negative copper blocks, and the two ends of each negative copper wire are fixed on the second connecting block and the fourth connecting block of the supporting frame respectively through a force releasing mechanism corresponding to the negative copper wires. The utility model discloses a negative pole copper wire is done the negative pole and is replaced traditional probe row to do the negative pole, realizes the normal test of 12 bars battery pieces, can test multiple size battery pieces, uses extensively.
Description
Technical Field
The utility model relates to a solar cell tests technical field, especially a MBB multiple grid line battery piece test fixture.
Background
The new energy of solar energy has been developed for many years, and solar cells are continuously updated along with the development of the industry, from the first two-grid confluence to the highest 12-grid confluence nowadays. The energy conversion rate of the battery piece is continuously improved, so that the measurement of the electrical performance parameters of the battery piece becomes an indispensable loop for the development of the battery piece.
And measuring the electrical performance parameters of the cell, namely connecting a negative grid line and a positive electrode surface, and measuring the parameters under a simulation environment through a solar simulator. Usually, the positive electrode is in contact connection with the positive electrode surface of the cell piece through the copper plate, the negative electrode is connected through the probe row, the cell piece can be normally tested in a 6-grid or below-grid mode in the probe row mode, but the newly circulated 9-grid and 12-grid cell pieces cannot be normally tested due to the problems of light blocking and insufficient space in the probe row mode. Therefore the utility model discloses a can compatible test 9 bars and 12 bars's battery piece negative pole test fixture has been developed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a many grid lines of MBB battery piece test fixture to solve the problem that proposes in the above-mentioned technical background.
In order to achieve the above object, the present invention provides a method for manufacturing a semiconductor device, comprising:
an MBB multi-grid wire battery piece testing tool comprises a copper wire fixing mechanism and a positive copper plate for placing battery pieces; the copper wire fixing mechanism is driven by the driving mechanism to press down towards the positive copper plate with the battery piece;
the copper wire fixing mechanism comprises a supporting frame formed by sequentially fixing a first connecting block, a second connecting block, a third connecting block and a fourth connecting block, wherein the second connecting block and the fourth connecting block are arranged in a mirror symmetry manner, a negative copper block is arranged on each of the inner sides of the second connecting block and the fourth connecting block, and a plurality of force releasing mechanisms which are linearly distributed are arranged on each of the outer sides of the second connecting block and the fourth connecting block;
the supporting frame is characterized in that a plurality of negative copper wires which are arranged in parallel are arranged below the supporting frame, the negative copper wires are in contact connection with the lower sides of the two negative copper blocks, and the two ends of each negative copper wire are fixed on the second connecting block and the fourth connecting block of the supporting frame respectively through a force releasing mechanism corresponding to the negative copper wires.
In the above technical scheme, each force-releasing mechanism comprises a fifth connecting block, a first adjusting screw and a compression spring, each first adjusting screw movably penetrates through the corresponding second connecting block or fourth connecting block and is in threaded connection with the corresponding fifth connecting block arranged outside the second connecting block or fourth connecting block, and each fifth connecting block fixes one end of the corresponding negative copper wire through a negative copper wire fixing screw;
each compression spring is sleeved on the screw column of the corresponding first adjusting screw, one end of each compression spring abuts against the screw cap of the corresponding first adjusting screw, and the other end of each compression spring abuts against the second connecting block or the fourth connecting block.
In the technical scheme, each negative copper block is arranged on the inner side of the corresponding second connecting block or fourth connecting block, the lower side of each negative copper block is in contact connection with a plurality of negative copper wires below the supporting frame, the upper end of each negative copper block is limited by a plurality of second adjusting screws, and each second adjusting screw thread penetrates through the upper part of the corresponding second connecting block or fourth connecting block and is in threaded connection with the upper part of the corresponding negative copper block;
and the two ends of each negative copper block are respectively and fixedly connected with the upper parts of the second connecting block or the fourth connecting block through a tension spring.
In the technical scheme, the lower end of each negative copper block is provided with a plurality of fine lines corresponding to the negative copper wires, and each fine line is used for limiting the negative copper wires corresponding to the fine lines.
In the technical scheme, a plurality of vacuum holes are formed in the position, used for placing the battery piece, of the positive copper plate.
In the above technical scheme, the upper surface of the anode copper plate is an arc surface along the length direction of the cathode copper wire.
In the technical scheme, the number of the negative copper wires is 12.
In the above technical scheme, the driving mechanism is a pressing cylinder, and the pressing cylinder is connected and fixed to the third connecting block through a bolt.
Among the above-mentioned technical scheme, set up insulating washer on the third connecting block, insulating washer passes through the hole pin joint and presses on the third connecting block with the bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
1. compared with the conventional probe arrangement mode for normally testing 6-grid and below-grid battery pieces, the utility model discloses a negative copper wire is made the negative pole and replaces the conventional probe arrangement to be made the negative pole, solves the problem that the conventional probe arrangement mode can not normally test the electric performance of MBB multi-group grid battery pieces, solves the problems of light blocking and insufficient space existing in the conventional probe arrangement mode, realizes the normal test of 12-grid battery pieces, is compatible with the test of 156/166/188/210 and other battery pieces with various sizes circulating on the market, and has wide application;
2. the utility model discloses in, the elasticity of negative pole copper wire is controlled to the elasticity of first adjusting screw through adjustment power release mechanism, and during the use, the compression spring compression on both sides when the negative pole copper wire pushes down realizes the power of releasing, reduces the pressure of negative pole copper wire to the battery piece in the testing process.
3. And a plurality of vacuum holes are formed in the positions, used for placing the battery pieces, on the positive copper plate. When the battery plate is used, the battery plate is adsorbed on the positive electrode copper plate through the vacuum hole, so that the battery plate is in close contact with the positive electrode copper plate 2, the conductive effect is improved, and the measurement authenticity is increased. Meanwhile, the upper surface of the positive copper plate is an arc surface along the length direction of the negative copper wire, and the negative copper wire is pressed down to generate a small radian on the battery piece during testing, so that the negative copper wire and the negative grid line of the battery piece are better attached to increase the contact area, enhance the conductivity and increase the authenticity of a measuring result.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a copper wire fixing mechanism;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural view of a positive electrode copper plate;
in the figure, 1, a copper wire fixing mechanism; 1.1, a first connecting block; 1.2, a second connecting block; 1.3, a third connecting block; 1.4, a fourth connecting block; 1.5, a negative copper block; 1.6, a force release mechanism; 1.61, a fifth connecting block; 1.62, a first adjusting screw; 1.63, a compression spring; 1.64, fixing screws for negative copper wires; 1.7, a negative copper wire; 1.8, a second adjusting screw; 1.9, a tension spring; 1.10, an insulating gasket; 2. a positive electrode copper plate; 2.1, vacuum holes; 2.2, cambered surface; 3. pressing down the air cylinder; 100. a battery piece.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1 to 4, an MBB multi-grid-line cell testing tool comprises a copper wire fixing mechanism 1 and a positive electrode copper plate 2 for placing a cell 100, wherein the back surface (positive electrode) of the MBB cell is flatly placed above the positive electrode copper plate 2 during testing, and is conducted with the positive electrode of the cell through the good conductivity of copper; the copper wire fixing mechanism 1 is driven by a driving mechanism to press down the positive copper plate 2 with the battery piece 100; when the copper plate pressing device is used, the anode copper plate 2 is connected to an application casing through a bolt, the driving mechanism is a pressing cylinder 3, the pressing cylinder 3 is fixedly connected to the third connecting block 1.3 through a bolt, and meanwhile, the pressing cylinder 3 is also fixedly connected to the application casing (not shown in the figure) through a bolt. During the use, put through down the air cylinder air supply, drive copper line fixed establishment 1 pushes down when switching on triggering, makes negative pole copper wire 1.7 on the copper line fixed establishment 1 and places the battery piece 100 contact on anodal copper 2, pushes down the power supply when cylinder 3 is as the test.
As shown in fig. 2 and 3, the copper wire fixing mechanism 1 includes a supporting frame formed by sequentially fixing a first connecting block 1.1, a second connecting block 1.2, a third connecting block 1.3 and a fourth connecting block 1.4, and stabilizes the overall structure; the first connecting block 1.1, the second connecting block 1.2, the third connecting block 1.3 and the fourth connecting block 1.4 are fixedly connected with each other through bolts, and the second connecting block 1.2 and the fourth connecting block 1.4 are both used as mounting platforms of a negative electrode copper plate 1.5 and a force release mechanism 1.6; specifically, the second connecting block 1.2 and the fourth connecting block 1.4 are arranged in a mirror symmetry manner, the inner sides of the second connecting block 1.2 and the fourth connecting block 1.4 are respectively provided with a negative copper block 1.5, and the outer sides of the second connecting block 1.2 and the fourth connecting block are respectively provided with a plurality of force release mechanisms 1.6 which are distributed linearly;
a plurality of cathode copper wires 1.7 arranged in parallel are arranged below the supporting frame, for example, the number of the cathode copper wires 1.7 is 12. The negative copper wires 1.7 are in contact connection with the lower sides of the two negative copper blocks 1.5, and the negative copper blocks 1.5 are used as confluence points of the negative copper wires 1.7; and both ends of each negative copper wire 1.7 are respectively fixed on the second connecting block 1.2 and the fourth connecting block 1.4 of the supporting frame through a corresponding force-releasing mechanism 1.6.
The utility model discloses a negative pole copper wire 1.7 is the negative pole and replaces traditional probe row to be the negative pole, solves the unable normal condition of testing MBB multiunit grid battery piece electric property of traditional probe row.
Referring to fig. 2 and 3, each of the force-releasing mechanisms 1.6 includes a fifth connecting block 1.61, a first adjusting screw 1.62 and a compression spring 1.63, each of the first adjusting screws 1.62 movably passes through a slot on the corresponding second connecting block 1.2 or fourth connecting block 1.4 and is in threaded connection with the corresponding fifth connecting block 1.61 arranged outside the second connecting block 1.2 or fourth connecting block 1.4, and each of the fifth connecting blocks 1.61 fixes one end of the corresponding negative copper wire 1.7 by a negative copper wire fixing screw 1.64;
each compression spring 1.63 is sleeved on the screw post of the corresponding first adjusting screw 1.62, one end of each compression spring 1.63 abuts against the screw cap of the corresponding first adjusting screw 1.62, and the other end of each compression spring 1.63 abuts against the second connecting block 1.2 or the fourth connecting block 1.4.
The utility model discloses in, fifth connecting block 1.61 is used for connecting negative pole copper wire 1.7 corresponding with it and first adjusting screw 1.62, as intermediate junction slider, adjusts negative pole copper wire 1.7's elasticity. The negative copper wire fixing screw 1.64 is fixed on the fifth connecting block 1.61 through threaded connection and used for fixing the negative copper wire 1.7, and specifically, the negative copper wire 1.7 is wound twice in the reverse thread direction, and then the screw is screwed down, so that the negative copper wire can be fixed; the negative copper wire 1.7 is used for connecting a negative grid line of the battery piece and is respectively fixed on two fifth connecting blocks 1.61 which are symmetrically arranged at two ends of the negative copper wire in a screw pressing mode; compression spring 1.63 passes through the hole pin joint on first adjusting screw 1.62, provides the buffering for negative pole copper wire 1.7, through adjustment compression degree, adjusts the elasticity of negative pole copper wire 1.7.
Before use, the tightness of the negative copper wire 1.7 is controlled by adjusting the tightness of the first adjusting screw 1.62; when the device is used, the compression springs 1.63 on the two sides compress when the negative copper wire 1.7 is pressed down, so that the force is released.
In the utility model, each negative copper block 1.5 is arranged inside the corresponding second connecting block 1.2 or fourth connecting block 1.4, the negative copper block 1.5 is fixed inside the corresponding second connecting block 1.2 or fourth connecting block 1.4 through the bolt connection, further, the negative copper block 1.5 is provided with a slotted hole, and the bolt passes through the slotted hole to fix the negative copper block on the corresponding second connecting block 1.2 or fourth connecting block 1.4; the lower side of each negative copper block 1.5 is in line contact connection with a plurality of negative copper wires 1.7 below the supporting frame, the upper end of each negative copper block is limited by a plurality of second adjusting screws 1.8, and each second adjusting screw 1.8 penetrates through the upper part of the corresponding second connecting block 1.2 or fourth connecting block 1.4 and is in threaded connection with the upper part of the corresponding negative copper block 1.5;
two ends of each negative copper block 1.5 are respectively and fixedly connected with the upper part of the second connecting block 1.2 or the fourth connecting block 1.4 through a tension spring 1.9; the tension spring 1.9 is respectively connected to the second connecting block 1.2 and the negative copper block 1.5 through a spring hook of the tension spring 1.9. The second adjusting screws 1.8 limit the upward displacement of the negative copper block 1.5, the copper wire fixing mechanism 1 is pressed down for a long time, the negative copper block 1.5 can generate small-amplitude displacement, and the upward displacement can be limited by the plurality of second adjusting screws 1.8 arranged at the upper end of the negative copper block 1.5; meanwhile, the tension spring 1.9 stabilizes the negative copper block 1.5 below the second adjusting screw 1.8 through upward tension.
Furthermore, the lower end of each negative copper block 1.5 is provided with a plurality of fine lines corresponding to the negative copper wires, and each fine line is used for fixing the position of the corresponding negative copper wire 1.7, so that the negative copper wires are prevented from shifting in the measuring process.
As shown in fig. 4, a plurality of vacuum holes 2.1 are provided at positions on the positive electrode copper plate 2 for placing the battery pieces 100. During the use, vacuum hole 2.1 communicates with negative pressure air supply (not shown in the figure), keeps flat battery piece 100 when testing and opens the negative pressure after corresponding position, adsorbs battery piece 100 on anodal copper 2, makes battery piece 100 and anodal copper 2 in close contact with, increases electrically conductive effect, increases and measures the authenticity.
The upper surface of the positive electrode copper plate 2 is an arc surface along the length direction of the negative electrode copper wire 1.5, and the degree of the arc surface of the positive electrode copper plate 2 is 1-2 degrees. Its self of solar wafer has certain toughness, and slight deformation can not cause the damage to it, and negative pole copper wire 1.7 pushes down and produces miniradians (1 ~ 2 °) on wafer 100 during the test, makes negative pole copper wire 1.7 and wafer 100 negative pole grid line better laminate increase area of contact, reinforcing electric conductivity increases measuring result's authenticity.
The utility model discloses in, set up insulating gasket 1.10 on third connecting block 1.3, insulating gasket 1.10 clearing hole pin joint is pressed on third connecting block 1.3 with bolt (this bolt is the bolt that is used for connecting down to push down cylinder and third connecting block). The insulating gasket 1.10 is used for insulation, so that external electrostatic interference during testing is prevented, and the testing precision and the testing accuracy are improved.
During testing, the MBB cell 100 is flatly placed above the positive electrode copper plate 2 (the back surface (positive electrode) of the MBB cell 100 is in contact with the surface of the positive electrode copper plate 2), and is conducted with the positive electrode of the cell through the good conductivity of copper; simultaneously, opening a negative pressure gas source to adsorb the battery piece 100 on the positive electrode copper plate 2, so that the battery piece 100 is tightly contacted with the positive electrode copper plate 2;
then, a gas source of a pressing cylinder is connected, the pressing cylinder 3 drives the copper wire fixing mechanism 1 to press down when the connection is triggered, and a negative copper wire 1.7 on the copper wire fixing mechanism 1 is in contact with a battery piece 100 placed on the positive copper plate 2 to perform testing.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. The MBB multi-grid-line battery piece testing tool is characterized by comprising a copper wire fixing mechanism (1) and a positive copper plate (2) for placing a battery piece (100); the copper wire fixing mechanism (1) is driven by a driving mechanism to press down towards the positive copper plate (2) with the battery piece (100);
the copper wire fixing mechanism (1) comprises a supporting frame formed by sequentially fixing a first connecting block (1.1), a second connecting block (1.2), a third connecting block (1.3) and a fourth connecting block (1.4), the second connecting block (1.2) and the fourth connecting block (1.4) are arranged in a mirror symmetry mode, a negative copper block (1.5) is arranged on the inner side of each of the second connecting block (1.2) and the fourth connecting block (1.4), and a plurality of force releasing mechanisms (1.6) which are linearly distributed are arranged on the outer side of each of the second connecting block (1.2) and the fourth connecting block (1.4);
the supporting frame is characterized in that a plurality of negative copper wires (1.7) which are arranged in parallel are arranged below the supporting frame, the negative copper wires (1.7) are in contact connection with the lower sides of the two negative copper blocks (1.5), and the two ends of each negative copper wire (1.7) are fixed on a second connecting block (1.2) and a fourth connecting block (1.4) of the supporting frame respectively through a force releasing mechanism (1.6) corresponding to each negative copper wire.
2. The MBB multi-grid cell testing tool according to claim 1, wherein each force-releasing mechanism (1.6) comprises a fifth connecting block (1.61), a first adjusting screw (1.62) and a compression spring (1.63), each first adjusting screw (1.62) movably penetrates through the corresponding second connecting block (1.2) or fourth connecting block (1.4) and is in threaded connection with the corresponding fifth connecting block (1.61) arranged on the outer side of the second connecting block (1.2) or fourth connecting block (1.4), and each fifth connecting block (1.61) is fixed at one end of the corresponding negative copper wire (1.7) through a negative copper wire fixing screw (1.64);
every compression spring (1.63) cover on the screw post of first adjusting screw (1.62) corresponding with it, just one end butt of compression spring (1.63) is at its corresponding nut of first adjusting screw (1.62), and the other end butt is on second connecting block (1.2) or fourth connecting block (1.4).
3. The MBB multi-grid cell testing tool according to claim 1, wherein each negative copper block (1.5) is arranged on the inner side of the corresponding second connecting block (1.2) or fourth connecting block (1.4), the lower side of each negative copper block (1.5) is in contact connection with a plurality of negative copper wires (1.7) below the supporting frame, the upper end of each negative copper block is limited by a plurality of second adjusting screws (1.8), and each second adjusting screw (1.8) penetrates through the upper portion of the corresponding second connecting block (1.2) or fourth connecting block (1.4) and is in threaded connection with the upper portion of the corresponding negative copper block (1.5);
two ends of each negative copper block (1.5) are respectively and fixedly connected with the upper part of the second connecting block (1.2) or the fourth connecting block (1.4) through a tension spring (1.9).
4. The MBB multi-grid battery piece testing tool according to claim 3, wherein the lower end of each negative copper block (1.5) is provided with a plurality of fine lines corresponding to the negative copper wires (1.7), and each fine line is used for limiting the corresponding negative copper wires (1.7).
5. The MBB multi-grid-line battery piece testing tool according to claim 1, wherein a plurality of vacuum holes (2.1) are formed in the positions, used for placing the battery pieces (100), on the positive electrode copper plate (2).
6. The MBB multi-grid-line battery piece testing tool according to claim 5, wherein the upper surface of the positive copper plate (2) is an arc surface (2.2) along the length direction of the negative copper wire (1.5).
7. The MBB multi-grid-line battery piece testing tool according to claim 1, wherein the number of the negative copper wires (1.7) is 12.
8. The MBB multi-grid-line battery piece testing tool according to claim 1, wherein the driving mechanism is a pressing cylinder (3), and the pressing cylinder (3) is fixed on a third connecting block (1.3) through a bolt connection.
9. The MBB multi-grid cell testing tool according to claim 8, wherein an insulating gasket (1.10) is arranged on the third connecting block (1.3), and the insulating gasket (1.10) is connected through a hole pin and pressed on the third connecting block (1.3) by the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429433.4U CN214256241U (en) | 2021-02-27 | 2021-02-27 | MBB multi-grid line battery piece test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120429433.4U CN214256241U (en) | 2021-02-27 | 2021-02-27 | MBB multi-grid line battery piece test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214256241U true CN214256241U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120429433.4U Active CN214256241U (en) | 2021-02-27 | 2021-02-27 | MBB multi-grid line battery piece test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214256241U (en) |
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2021
- 2021-02-27 CN CN202120429433.4U patent/CN214256241U/en active Active
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