CN221354273U - Multi-main-grid solar cell electrical performance signal acquisition device and testing equipment - Google Patents
Multi-main-grid solar cell electrical performance signal acquisition device and testing equipment Download PDFInfo
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- CN221354273U CN221354273U CN202322706121.5U CN202322706121U CN221354273U CN 221354273 U CN221354273 U CN 221354273U CN 202322706121 U CN202322706121 U CN 202322706121U CN 221354273 U CN221354273 U CN 221354273U
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- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000523 sample Substances 0.000 abstract description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 12
- 241000218202 Coptis Species 0.000 description 9
- 235000002991 Coptis groenlandica Nutrition 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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 application discloses an electric performance signal acquisition device and test equipment for a multi-main-grid solar cell, and belongs to the field of solar energy. The utility model provides a many main bars solar wafer electrical property signal acquisition device includes: the device comprises a carrier, a plurality of test lines, a plurality of tensioning mechanisms, two guide shafts and a driving mechanism; the guide shafts are oppositely arranged in parallel; the two ends of the carrier are respectively sleeved on the two guide shafts; the carrier is connected with the driving mechanism and can move along the guide shaft under the driving force of the carrier; the test lines are arranged on the carrier side by side and are in contact connection with the test surface of the battery piece to be tested; two ends of any test line are respectively connected with a tensioning mechanism; one end of the tensioning mechanism, which is far away from the test line, is connected with the end part of the carrier; the tensioning mechanism and the test line are both horizontally arranged. The application can solve the problems of difficult spatial layout, large shading area, large pressure on the battery piece and the like when the probe pair multi-main grid battery piece is adopted for testing, and can improve the position accuracy and good contact property of the test line and the battery piece.
Description
Technical Field
The application belongs to the technical field of solar energy, relates to test equipment of battery pieces, and particularly relates to an electric performance signal acquisition device and test equipment of a multi-main-grid solar battery piece.
Background
After the preparation of the multi-main grid solar cell is completed, the multi-main grid solar cell needs to be tested. At present, when testing the solar cell with multiple main grids, the probe row is generally adopted to collect signals of the cell, but because the number of the test probe rows is large, various technical problems exist, including: 1. the space is difficult to arrange; 2. the shading area is large, the light intensity compensation value is large, and the service life of the light source xenon lamp is influenced; 3. the multiple rows of probe rows are sprung and pressed on the battery piece, so that the mechanical pressure born by the battery piece is high, and hidden cracking and fragments of the battery piece are easily caused; 4. because the number of the probe rows is large, the shading area is large, the detection of the imaging defects of the battery piece EL is affected, an EL machine is required to be independently arranged for detection in a production line, and the equipment cost and the detection cost are relatively high; 5. the maintenance and manual replacement costs are high. Based on the problems and the shortcomings, the probe row is not suitable for being applied to the test of the multi-main grid solar cell.
In the prior art, a wire mode has also been proposed for testing, for example, the prior patent CN218298463U provides a battery testing device, which adopts a test copper wire to replace a probe to test the working efficiency of a half-cell battery, and elastic buffer assemblies are arranged at two ends of the test copper wire for fixing the test copper wire. Although the device can solve the problems to a certain extent, the structure of the scheme is complex, and the device is slightly insufficient in cost, popularization and reliability; in addition, the device of this patent is fixed the elasticity buffer components at copper line both ends on the mounting bracket, can't remove, and when the test, it is in the position to need battery piece and test copper line to align completely, can have higher requirement to other structures of test equipment, and suitability, operability exist not enoughly in actual test process.
Disclosure of utility model
The present application aims to solve at least one of the technical problems in the related art described above to some extent.
Therefore, the application aims to provide a multi-main-grid solar cell electrical performance signal acquisition device and test equipment, which can solve the problems of difficult space layout, large shading area, large cell pressure and the like when a probe is adopted to test a multi-main-grid solar cell, and can improve the position accuracy and good contact performance of a test line and the cell.
In order to solve the technical problems, the application is realized as follows:
the embodiment of the application provides a multi-main-grid solar cell electrical performance signal acquisition device, which comprises: the device comprises a carrier, a plurality of test lines, a plurality of tensioning mechanisms, a guide shaft and a driving mechanism;
The guide shafts are at least two and are oppositely arranged in parallel; two ends of the carrier are respectively sleeved on the two guide shafts; the carrier is connected with the driving mechanism and can move along the guide shaft under the driving force of the driving mechanism;
The test lines are arranged on the carrier side by side and are in contact connection with the test surface of the multi-main-grid solar cell to be tested;
Two ends of any one of the test lines are respectively connected with one of the tensioning mechanisms; one end of the tensioning mechanism, which is far away from the test line, is connected with the end part of the carrier; the tensioning mechanism and the test line are both horizontally arranged.
In addition, the multi-main-grid solar cell electrical performance signal acquisition device can also have the following additional technical characteristics:
in some embodiments, the tensioning mechanism comprises a tension spring hook, a tension spring, and a universal connection;
One end of the tension spring hook is detachably fixedly connected with the carrier, and the other end of the tension spring hook is hung with one end of the tension spring; the other end of the tension spring is connected with one end of the universal connecting piece in a hanging mode, and the other end of the universal connecting piece is connected with the test wire.
In some embodiments, the detachable fastening of the tension spring hook to the carrier is in particular a threaded connection.
In some embodiments, the universal connection piece comprises a cylindrical piece in the middle and ring pieces respectively positioned at two ends of the cylindrical piece; the two ring members are respectively and rotatably connected with the cylindrical member.
In some embodiments, the drive mechanism is a lead screw motor or an electric cylinder.
In some embodiments, the carrier is of a groove structure and comprises a middle plate-shaped piece and carrier end pieces which are positioned at two ends of the plate-shaped piece and are perpendicular to the plate-shaped piece; the tension spring hook is connected with the carrier end piece.
In some embodiments, the plurality of test wires provided on the same carrier are any one or a combination of a plurality of round-diameter gold-plated copper wires, flat-diameter gold-plated copper wires and oval-diameter gold-plated copper wires.
In some embodiments, the round gold-plated copper wire has a wire diameter between 0.2 and 2.0 millimeters.
In some of these embodiments, the device further comprises at least four guide shaft fixtures; the guide shaft fixing pieces are arranged at two ends of the guide shaft in a group, and are connected with the guide shaft.
The embodiment of the application also provides solar cell testing equipment, which comprises a pressing mechanism and the multi-main-grid solar cell electrical property signal acquisition device; one surface of the carrier of the multi-main-grid solar cell electric performance signal acquisition device, which is far away from the test line, is fixedly connected with the pressing mechanism.
Compared with the prior art, the utility model has at least the following beneficial effects:
According to the multi-main-grid solar cell electrical performance signal acquisition device, the carrier is sleeved on the guide shaft, so that the position of the test wire on the carrier can be adjusted according to actual conditions, the requirement on the transmission position of the cell is reduced, and the contact position of the test wire and the cell is ensured to be accurate;
in the embodiment of the application, the provided multi-main-grid solar cell electrical performance signal acquisition device adopts the tension mechanism which is simple in structure, stable and reliable, is convenient to maintain and low in cost, is applicable to test wires with various shapes, and can ensure good contact between the test wires and the cell.
The test equipment for the solar cell comprises the multi-main grid solar cell electrical performance signal acquisition device, so that the test equipment at least has all the characteristics and advantages of the multi-main grid solar cell electrical performance signal acquisition device, and is not described herein. Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Fig. 1 is a schematic structural diagram of an electrical performance signal acquisition device for a multi-main-grid solar cell according to an embodiment of the present application;
Fig. 2 is a schematic side view structure diagram of a multi-main-grid solar cell electrical performance signal acquisition device in a connection state with a pushing mechanism according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing a connection state of a tensioning mechanism and a gold wire according to an embodiment of the present application;
Fig. 4 is a schematic structural diagram of a tensioning mechanism according to an embodiment of the present application.
Reference numerals illustrate:
1-a tensioning mechanism; 2-solar cells; 3-carrier; 4-a guide shaft; 5-gold wire; 6-a guide shaft fixing member; 7-a pressing mechanism;
11-an external thread tension spring hook; 12-a tension spring; 13-universal connection.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following describes embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 1, in some embodiments of the present application, a multi-main-grid solar cell electrical performance signal acquisition device is provided, which can be applied to a solar cell testing apparatus, for example, after the multi-main-grid solar cell is manufactured, a process of testing electrical performance of the solar cell is involved. In addition, the electrical performance signal acquisition device can be used in other equipment or for carrying out other types of signal acquisition, and the embodiment of the application does not limit the specific use scene and working condition of the electrical performance signal acquisition device.
Specifically, according to fig. 1, the multi-main-grid solar cell electrical performance signal acquisition device includes: the device comprises a carrier 3, a plurality of gold wires 8 arranged side by side, a plurality of pairs of tensioning mechanisms 1 arranged oppositely and a guide shaft 4.
Wherein, the guide shafts 4 are two, and are arranged on the test equipment in parallel. The carrier 3 is provided with via holes at both ends thereof, and is inserted through the via holes on the guide shafts 4 at the corresponding ends, so as to be movable along the guide shafts. A plurality of gold wires 5 are arranged above the carrier 3 side by side in parallel, two ends of each gold wire are respectively connected with one tensioning mechanism 1, and two opposite tensioning mechanisms 1 are in a group. The tensioning mechanism 1 is fixed at two ends of the carrier 3, and each end is arranged in a row. The whole carrier 3 has a groove structure, and has a middle plate-shaped member and carrier end members positioned at two ends of the plate-shaped member and perpendicular to the plate-shaped member, and two tensioning mechanisms 1 of each group are respectively connected with the carrier end members at the corresponding ends, and the tensioning mechanisms 1 are in a horizontal state. The carrier 3 may be other shapes, and it is only necessary to provide a certain distance between the gold wire 5 and the carrier 3.
In this embodiment, the tensioning mechanism 1 includes an external thread tension spring hook 11, a tension spring 12 and a universal connection member 13, and as shown in fig. 3 and 4, the external thread tension spring hook 11, the tension spring 12 and the universal connection member 13 are sequentially connected. One end of the external thread tension spring hook 11 is provided with external threads, and the other end is in a hook structure; one end with external threads is in threaded connection with the end part of the carrier, so that detachable fixation is realized, when the tensioning mechanism or the gold thread fails, the single gold thread and the corresponding tensioning mechanism can be detached for replacement, the operation is convenient, and the labor is saved; one end of the hook structure is hung with one end of the tension spring 12, and the other end of the tension spring 12 is hung with one end of the universal connecting piece 13. The universal connecting piece is also called splayed ring, and is provided with a cylinder piece in the middle and rings at two ends of the cylinder piece, wherein the two rings form the splayed shape, and the two rings are respectively and rotatably connected with the cylinder piece and have universal effect. The universal connecting piece is connected with the tension spring 12 in a hanging way through one ring, and the other ring is connected with the end part of the gold thread 5. The main function of the universal connecting piece 13 is that the pressing angle can be automatically adjusted slightly according to the pressing depth in the pressing state, so as to achieve the optimal pressing effect.
Alternatively, the universal connection piece 13 and the gold wire 5 may be welded or bonded.
In some embodiments of the application, the gold wire is a round gold-plated copper wire, and the wire diameter specification is between 0.2 and 2.0 millimeters; the synchronous shape can be flat copper wire, braided copper wire, etc.
In addition, based on the above setting, the multi-main-grid solar cell electrical property signal acquisition device of the embodiment can not replace the whole gold wire 5 and the tensioning mechanism 1 during maintenance and replacement, but only replace the gold wire 5 and the universal connecting piece 13 or the gold wire 5, the universal connecting piece 13 and the tension spring 12 according to the fault position, thereby being more convenient for maintenance and replacement and saving cost.
In addition, the tensioning mechanism 1 of the application has simple structure and high reliability. Because the combination setting of extension spring and universal connection spare, do not break down and stretch by a wide margin or fracture under the condition of gold thread, need not to adjust gold thread length and accomplish the long-term tensioning of gold thread, and when adopting non-circular gold thread, like flat gold thread, also can guarantee to laminate the battery piece surface better when pushing down the contact to the battery piece, form good ohmic contact, the suitability is stronger.
In any of the above embodiments, the displacement of the carrier 3 along the guide shaft 4 is achieved by driving a motor, specifically using a ball screw motor (not shown in the drawings), where the driving motor is disposed at the outer end of the carrier or disposed at a side of the carrier away from the solar cell 2 to be tested (the general usage mode of the present application is that the gold wire is pressed down to contact with the upper surface of the solar cell for testing, and the driving motor is disposed above the carrier), and is fixedly disposed (and may be fixedly connected with the cavity wall of the testing device). The driving motor is fixedly connected with the carrier, and under the control of the control unit of the testing equipment, the driving motor acts to drive the carrier to horizontally move along the guide shaft 4 so that the whole gold thread group can be automatically aligned with the conveying position of the solar cell. Each carrier corresponds to two groups of driving motors and is used for simultaneously driving two ends of the carrier to move.
In other embodiments of the application, a guide shaft fixing member 6 is provided at each end of the guide shaft 4, and the guide shaft fixing member 6 may be used for connection with the test apparatus to support and fix the guide shaft.
In operation, referring to fig. 2, the top of the whole multi-main-grid solar cell electrical property signal acquisition device is fixedly connected with the pressing mechanism 7 of the testing equipment, when the solar cell is conveyed to the testing position by the conveying mechanism, the pressing mechanism 7 drives the whole device to move downwards and be in contact connection with the upper surface of the solar cell, and gold wires are perpendicular to the auxiliary grid of the cell in the pressing testing state to test and acquire signals.
It should be noted that, the specific structure, the working principle, the control logic, etc. of the test apparatus, etc. may refer to the prior art, and this embodiment is not limited thereto, and will not be described in detail herein.
The utility model is not described in detail in a manner known to those skilled in the art.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (10)
1. A multi-primary-grid solar cell electrical performance signal acquisition device, the device comprising: the device comprises a carrier, a plurality of test lines, a plurality of tensioning mechanisms, a guide shaft and a driving mechanism;
The guide shafts are at least two and are oppositely arranged in parallel; two ends of the carrier are respectively sleeved on the two guide shafts; the carrier is connected with the driving mechanism and can move along the guide shaft under the driving force of the driving mechanism;
The test lines are arranged on the carrier side by side and are in contact connection with the test surface of the multi-main-grid solar cell to be tested;
Two ends of any one of the test lines are respectively connected with one of the tensioning mechanisms; one end of the tensioning mechanism, which is far away from the test line, is connected with the end part of the carrier; the tensioning mechanism and the test line are both horizontally arranged.
2. The multi-main-grid solar cell electrical property signal acquisition device according to claim 1, wherein the tensioning mechanism comprises a tension spring hook, a tension spring and a universal connector;
One end of the tension spring hook is detachably fixedly connected with the carrier, and the other end of the tension spring hook is hung with one end of the tension spring; the other end of the tension spring is connected with one end of the universal connecting piece in a hanging mode, and the other end of the universal connecting piece is connected with the test wire.
3. The multi-main-grid solar cell electrical performance signal acquisition device according to claim 2, wherein the detachable fixedly connected connection of the tension spring hook and the carrier is specifically a threaded connection.
4. The multi-main-grid solar cell electrical performance signal acquisition device according to claim 2, wherein the universal connection piece comprises a cylindrical piece positioned in the middle and ring pieces positioned at two ends of the cylindrical piece respectively; the two ring members are respectively and rotatably connected with the cylindrical member.
5. The multi-main-grid solar cell electrical property signal acquisition device according to claim 1, wherein the driving mechanism is a screw motor or an electric cylinder.
6. The multi-main-grid solar cell electrical property signal acquisition device according to any one of claims 2 to 4, wherein the carrier has a slot structure and comprises a middle plate-shaped member and carrier end members positioned at two ends of the plate-shaped member and arranged perpendicularly to the plate-shaped member; the tension spring hook is connected with the carrier end piece.
7. The multi-main-grid solar cell electrical performance signal acquisition device according to claim 1, wherein the plurality of test wires arranged on the same carrier are any one or a combination of a plurality of round-diameter gold-plated copper wires, flat-diameter gold-plated copper wires and oval-diameter gold-plated copper wires.
8. The multi-main-grid solar cell electrical property signal acquisition device according to claim 7, wherein the diameter of the round gold-plated copper wire is between 0.2 and 2.0 mm.
9. The multi-primary grid solar cell electrical performance signal acquisition device of claim 1, further comprising at least four guide shaft fixtures; the guide shaft fixing pieces are arranged at two ends of the guide shaft in a group, and are connected with the guide shaft.
10. A solar cell testing apparatus comprising a pressing mechanism and a multi-main grid solar cell electrical performance signal acquisition device according to any one of claims 1 to 9; one surface of the carrier of the multi-main-grid solar cell electric performance signal acquisition device, which is far away from the test line, is fixedly connected with the pressing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322706121.5U CN221354273U (en) | 2023-10-10 | 2023-10-10 | Multi-main-grid solar cell electrical performance signal acquisition device and testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322706121.5U CN221354273U (en) | 2023-10-10 | 2023-10-10 | Multi-main-grid solar cell electrical performance signal acquisition device and testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221354273U true CN221354273U (en) | 2024-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322706121.5U Active CN221354273U (en) | 2023-10-10 | 2023-10-10 | Multi-main-grid solar cell electrical performance signal acquisition device and testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221354273U (en) |
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2023
- 2023-10-10 CN CN202322706121.5U patent/CN221354273U/en active Active
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