CN219678415U - Testing device for testing electrical properties of battery piece - Google Patents
Testing device for testing electrical properties of battery piece Download PDFInfo
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- CN219678415U CN219678415U CN202320699891.9U CN202320699891U CN219678415U CN 219678415 U CN219678415 U CN 219678415U CN 202320699891 U CN202320699891 U CN 202320699891U CN 219678415 U CN219678415 U CN 219678415U
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 239000000523 sample Substances 0.000 claims abstract description 46
- 238000011056 performance test Methods 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000010586 diagram Methods 0.000 description 6
- 238000005401 electroluminescence Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides a testing device for testing the electrical property of a battery piece, which comprises: a test body; an upper press plate positioned inside the test main body; the slide glass platform is positioned in the test main body and below the upper pressing plate and is used for placing a battery piece, the battery piece is provided with a grid line electrode surface and a non-grid line electrode surface which is arranged opposite to the grid line electrode surface, the grid line electrode surface is provided with a grid line electrode, and the non-grid line electrode surface of the battery piece is arranged towards the upper pressing plate; the lower probe row is positioned in the test main body and below the slide platform, and the grid line electrode surface of the battery piece is arranged towards the lower probe row; during testing, the upper pressing plate is controlled to move downwards so that the upper pressing plate contacts the non-grid electrode surface of the battery piece, and the lower probe row is controlled to move upwards so that the probes contact the grid electrode on the grid electrode surface of the battery piece, and the electrical performance test of the battery piece is completed.
Description
Technical Field
The utility model relates to the technical field of battery electrical performance testing, in particular to a testing device for testing the electrical performance of a battery piece.
Background
IBC cells, i.e., all back electrode contact cells (Interdigitated Back Contact), are techniques that move both the positive and negative metal contacts of the solar cell to the back of the cell sheet.
In order to ensure the working efficiency of the solar cell, an electrical performance test needs to be performed on the cell in a processing procedure to ensure that the cell has good electrical performance parameters, wherein the electrical performance test of the cell mainly comprises an Electroluminescence (EL) test and a volt-ampere (IV) characteristic test.
Disclosure of Invention
The utility model provides a testing device for testing the electrical performance of a battery piece.
In a first aspect, the present utility model provides a test device for testing electrical properties of a battery sheet, the test device comprising:
a test body;
the upper pressing plate is positioned inside the test main body;
the slide glass platform is positioned in the test main body and below the upper pressing plate and is used for placing a battery piece, the battery piece is provided with a grid line electrode surface and a non-grid line electrode surface which is arranged opposite to the grid line electrode surface, the grid line electrode surface is provided with a grid line electrode, and the non-grid line electrode surface of the battery piece faces towards the upper pressing plate;
the lower probe row is positioned in the test main body and below the slide platform, and the grid line electrode surface of the battery piece is arranged towards the lower probe row;
during testing, the upper pressing plate is controlled to move downwards so that the upper pressing plate contacts the non-grid electrode surface of the battery piece, and the lower probe row is controlled to move upwards so that the probes contact the grid electrode on the grid electrode surface of the battery piece, and the electrical performance test of the battery piece is completed.
In some embodiments, the test apparatus further comprises a rack located at a bottom of the test body for supporting the test body.
In some embodiments, the test device further comprises a first control component for controlling the downward movement of the upper platen such that the upper platen contacts the non-grid electrode face of the battery cell.
In some embodiments, the test apparatus further comprises a second control member for controlling upward movement of the lower probe row to align and contact the probes with the gate line electrodes on the gate line electrode faces of the battery cells.
In some embodiments, the test device further comprises an alignment structure, the alignment structure being located inside the rack;
the alignment structure comprises at least one camera device, and the camera device is used for shooting the relative positions of the grid line electrode surface of the battery piece and the lower probe row;
and controlling the movement of the lower probe row according to the position of the grid line electrode surface of the battery piece and adjusting the position of the lower probe row so as to enable the lower probe row to be aligned with and contacted with the grid line electrode surface of the battery piece.
In some embodiments, the alignment structure further includes camera mounting mechanisms disposed in one-to-one correspondence with the camera devices, the camera devices being mounted on the corresponding camera mounting mechanisms.
In some embodiments, the camera mounting mechanism includes a first fixed member and a second fixed member, the camera device being fixedly mounted on the first fixed member, the first fixed member and the second fixed member being connected;
the first fixing member is disposed obliquely with respect to a direction perpendicular to the gate line electrode surface so that a lens of the camera device is inclined with respect to the direction perpendicular to the gate line electrode surface.
In some embodiments, the first fixing part and the second fixing part are movably connected, so that the first fixing part rotates relative to the second fixing part, and therefore the inclination angle of the first fixing part relative to the direction perpendicular to the electrode surface of the grid line is adjusted.
In some embodiments, the first stationary member is rotatable through an angle in the range of 90 degrees to 180 degrees.
In some embodiments, the alignment structure further comprises a structural frame, a bottom of the structural frame is located at a bottom of the frame, and the camera mounting mechanism is mounted at a top of the structural frame.
In some embodiments, the top of the structural frame has a slide rail on which the camera mounting mechanism is mounted;
the camera mounting mechanism adjusts a horizontal position of the camera device by sliding on the slide rail.
In some embodiments, the number of camera devices is 4.
In some embodiments, the battery cells are all back electrode contact battery cells.
According to the technical scheme of the testing device for testing the electrical property of the battery piece, the upper pressing plate is controlled to move downwards so that the upper pressing plate contacts the non-grid electrode surface of the battery piece, the battery piece is pressed, the stability of the battery piece in the testing process is improved, meanwhile, the lower probe row is controlled to move upwards so that the probe contacts the grid electrode on the grid electrode surface of the battery piece, the electrical property testing of the battery piece is completed, and the testing device provided by the embodiment of the utility model realizes the electrical property testing of the battery piece with the electrode positioned on one side, is particularly suitable for IBC batteries, and improves the electrical property testing efficiency of the battery.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the utility model or to delineate the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. The above and other features and advantages will become more readily apparent to those skilled in the art by describing in detail exemplary embodiments with reference to the attached drawings, in which:
fig. 1 is a schematic structural diagram of a testing device for testing electrical properties of a battery sheet according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of another testing device according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an alignment structure;
fig. 4 is a schematic structural view of a camera mounting mechanism.
Detailed Description
For a better understanding of the technical solutions of the present utility model, the following description of exemplary embodiments of the present utility model is made with reference to the accompanying drawings, in which various details of embodiments of the present utility model are included to facilitate understanding, and they should be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the utility model. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
The embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present utility model and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In the related art, the structure of the EL and IV test equipment is mainly suitable for the situation that grid line electrodes are arranged on two sides of a solar cell, and the front surface of the IBC cell is not provided with the grid line electrodes, so that the conventional test method cannot be used for positioning and debugging the EL and IV test equipment.
Fig. 1 is a schematic structural diagram of a testing device for testing electrical properties of a battery sheet according to an embodiment of the present utility model, and referring to fig. 1, the testing device includes:
a test body 1-1;
an upper pressing plate 3-1 positioned inside the test main body 1-1;
the slide glass platform 3-3 is positioned in the test main body 1-1 and below the upper pressing plate 3-1 and is used for placing the battery piece 3-2, the battery piece 3-2 is provided with a grid line electrode surface and a non-grid line electrode surface which is opposite to the grid line electrode surface, the grid line electrode surface is provided with a grid line electrode, and the non-grid line electrode surface of the battery piece 3-2 is arranged towards the upper pressing plate 3-1;
the lower probe row 3-4 is positioned in the test main body 1-1 and below the slide platform 3-3, and the grid line electrode surface of the battery piece 3-2 is arranged towards the lower probe row 3-4;
during testing, the upper pressing plate 3-1 is controlled to move downwards so that the upper pressing plate 3-1 contacts the non-grid electrode surface of the battery piece 3-2, and the lower probe row 3-4 is controlled to move upwards so that the probe contacts the grid electrode on the grid electrode surface of the battery piece 3-2, so that the electrical performance test of the battery piece 3-2 is completed.
In the embodiment of the utility model, the battery piece 3-2 is a battery piece with an electrode located on one side, for example, the battery piece 3-2 is a full back electrode contact battery piece IBC.
In the embodiment of the utility model, the upper pressing plate is controlled to move downwards so as to enable the upper pressing plate to contact the non-grid electrode surface of the battery piece, so that the battery piece is pressed, the stability of the battery piece in the test process is improved, meanwhile, the lower probe row is controlled to move upwards so as to enable the probe to contact the grid electrode on the grid electrode surface of the battery piece, and the electrical property test of the battery piece is completed.
Fig. 2 is a schematic structural diagram of another test apparatus according to an embodiment of the present utility model, and in some embodiments, as shown in fig. 2, the test apparatus further includes a rack 1-2, where the rack 1-2 is located at the bottom of the test body 1-1, and the rack 1-2 is used to support the test body 1-1.
In some embodiments, the testing device further comprises a first control component (not shown in the figure) for controlling the upper platen 3-1 to move downward so that the upper platen 3-1 contacts the non-grid electrode surface of the battery sheet 3-2.
In some embodiments, the testing device further comprises a second control member (not shown) for controlling the upward movement of the lower probe row 3-4 to align and contact the probes with the grid electrodes on the grid electrode faces of the battery cells 3-2.
The embodiment of the utility model does not limit the specific implementation forms of the first control component and the second control component, so long as the lifting and position control of the upper pressing plate and the lower probe row can be realized. For example, the control means may be a lift control device, a mechanical handling device, or the like.
In some embodiments, in order to facilitate the alignment contact between the grid electrode surface of the battery plate 3-2 and the lower probe row 3-4, as shown in fig. 2, the testing device further includes an alignment structure 1-3, where the alignment structure 1-3 is located inside the rack 1-2;
the alignment structure 1-3 comprises at least one camera device 4-1, wherein the camera device 4-1 is used for shooting the relative positions of the grid electrode surface of the battery piece 3-2 and the lower probe row 3-4;
and controlling the lower probe row 3-4 to move according to the position of the grid line electrode surface of the battery piece 3-2 and adjusting the position of the lower probe row 3-4 so as to enable the lower probe row 3-4 to be in contact with the grid line electrode surface of the battery piece 3-2, and enabling a probe to be correspondingly connected with a grid line electrode on the grid line electrode surface of the battery piece 3-2, thereby completing the electrical performance test of the battery piece 3-2.
Fig. 3 is a schematic structural diagram of an alignment structure, and in some embodiments, as shown in fig. 2 and 3, the alignment structure 1-3 further includes a camera mounting mechanism 4-2 disposed in a one-to-one correspondence with the camera device 4-1, where the camera device 4-1 is mounted on the corresponding camera mounting mechanism 4-2.
FIG. 4 is a schematic view of a camera mounting mechanism, in some embodiments, as shown in FIG. 4, the camera mounting mechanism 4-2 includes a first fixed member 5-1 and a second fixed member 5-2, the camera device 4-1 is fixedly mounted on the first fixed member 5-1, and the first fixed member 5-1 and the second fixed member 5-2 are connected;
the first fixing component 5-1 is obliquely arranged relative to the direction perpendicular to the grid line electrode surface of the battery piece 3-2, so that the lens of the camera device 4-1 is obliquely arranged relative to the direction perpendicular to the grid line electrode surface, and the camera device 4-1 can better shoot the relative position of the grid line electrode surface of the battery piece 3-2 and the lower probe row 3-4.
In some embodiments, as shown in fig. 4, the first fixing part 5-1 and the second fixing part 5-2 are movably connected, so that the first fixing part 5-1 rotates relative to the second fixing part 5-2, and therefore, the inclination angle of the first fixing part 5-1 relative to the direction perpendicular to the grid electrode surface is adjusted, and then the inclination angle of the camera device 4-1 is adjusted, when in use, the camera device 4-1 is adjusted to the inclination angle, and thus, the situation that the camera device 4-1 shoots the grid electrode surface of the lower probe row 3-4 and the battery piece 3-2 vertically can be effectively avoided, and part of the view can miss the grid electrode surface of the battery piece 3-2 shot by the lower probe row 3-4, so that the position of the lower probe row 3-4 is adjusted until the corresponding grid electrode position is aligned through the position of the grid electrode on the grid electrode surface of the battery piece 3-2, and the probe and the corresponding grid electrode are in aligned contact connection.
In some embodiments, the first fixing part 5-1 may be rotatable in an angle range of 90 degrees to 180 degrees.
In some embodiments, as shown in FIG. 3, the alignment structure 1-3 further includes a structural frame 4-3, the bottom of the structural frame 4-3 is located at the bottom of the frame 1-2, and the camera mounting mechanism 4-2 is mounted on top of the structural frame 4-3.
In some embodiments, the top of the structural frame 4-3 has a sliding rail (not shown in the figure) on which the camera mounting mechanism 4-2 is mounted;
the camera mounting mechanism 4-2 is slid on the sliding rail to adjust the horizontal position of the camera device 4-1, so as to adjust the horizontal position of the camera device 4-1 according to actual conditions, so that the camera device 4-1 photographs at a preferred position and a photographing angle.
In the embodiment of the present utility model, the number of the camera devices 4-1 is not particularly limited, and the number of the camera devices 4-1 is 4, as shown in fig. 3, in the 4 camera devices, two camera devices 4-1 are correspondingly installed on one side of the top of the structural frame 4-3, and the other two camera devices 4-1 are correspondingly installed on the other side of the top of the structural frame 4-3.
It is to be understood that the above-described embodiments are merely illustrative of the principles of the present utility model, and are not in limitation of the scope of the utility model. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (13)
1. A test device for testing electrical properties of a battery cell, comprising:
a test body;
the upper pressing plate is positioned inside the test main body;
the slide glass platform is positioned in the test main body and below the upper pressing plate and is used for placing a battery piece, the battery piece is provided with a grid line electrode surface and a non-grid line electrode surface which is arranged opposite to the grid line electrode surface, the grid line electrode surface is provided with a grid line electrode, and the non-grid line electrode surface of the battery piece faces towards the upper pressing plate;
the lower probe row is positioned in the test main body and below the slide platform, and the grid line electrode surface of the battery piece is arranged towards the lower probe row;
during testing, the upper pressing plate is controlled to move downwards so that the upper pressing plate contacts the non-grid electrode surface of the battery piece, and the lower probe row is controlled to move upwards so that the probes contact the grid electrode on the grid electrode surface of the battery piece, and the electrical performance test of the battery piece is completed.
2. The test device of claim 1, further comprising a rack positioned at a bottom of the test body for supporting the test body.
3. The test device of claim 1, further comprising a first control member for controlling downward movement of the upper platen to bring the upper platen into contact with a non-grid electrode face of a battery cell.
4. The test device of claim 1, further comprising a second control means for controlling upward movement of the lower probe row to align and contact the probes with the grid electrode on the grid electrode face of the battery cell.
5. The test device of claim 2, further comprising an alignment structure, the alignment structure being located inside the rack;
the alignment structure comprises at least one camera device, and the camera device is used for shooting the relative positions of the grid line electrode surface of the battery piece and the lower probe row;
and controlling the movement of the lower probe row according to the position of the grid line electrode surface of the battery piece and adjusting the position of the lower probe row so as to enable the lower probe row to be aligned with and contacted with the grid line electrode surface of the battery piece.
6. The test apparatus of claim 5, wherein the alignment structure further comprises camera mounting mechanisms disposed in one-to-one correspondence with the camera devices, the camera devices being mounted on the corresponding camera mounting mechanisms.
7. The test apparatus of claim 6, wherein the camera mounting mechanism comprises a first fixed member and a second fixed member, the camera device being fixedly mounted on the first fixed member, the first fixed member and the second fixed member being connected;
the first fixing member is disposed obliquely with respect to a direction perpendicular to the gate line electrode surface so that a lens of the camera device is inclined with respect to the direction perpendicular to the gate line electrode surface.
8. The testing device of claim 7, wherein the first fixing member and the second fixing member are movably connected to each other so that the first fixing member rotates relative to the second fixing member, and an inclination angle of the first fixing member relative to a direction perpendicular to the gate electrode surface is adjusted.
9. The test device of claim 8, wherein the first stationary member is rotatable through an angle in the range of 90 degrees to 180 degrees.
10. The test device of claim 6, wherein the alignment structure further comprises a structural frame, a bottom of the structural frame is positioned at a bottom of the frame, and the camera mounting mechanism is mounted at a top of the structural frame.
11. The test device of claim 10, wherein the top of the structural frame has a slide rail, the camera mounting mechanism being mounted on the slide rail;
the camera mounting mechanism adjusts a horizontal position of the camera device by sliding on the slide rail.
12. The test apparatus according to any one of claims 5-11, wherein the number of camera devices is 4.
13. The test device of claim 1, wherein the battery cells are all back electrode contact battery cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320699891.9U CN219678415U (en) | 2023-03-31 | 2023-03-31 | Testing device for testing electrical properties of battery piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320699891.9U CN219678415U (en) | 2023-03-31 | 2023-03-31 | Testing device for testing electrical properties of battery piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219678415U true CN219678415U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320699891.9U Active CN219678415U (en) | 2023-03-31 | 2023-03-31 | Testing device for testing electrical properties of battery piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219678415U (en) |
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2023
- 2023-03-31 CN CN202320699891.9U patent/CN219678415U/en active Active
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