A dual wafer cell testing device and method

Abstract

This invention discloses a dual-cell solar cell testing device and method. The testing device includes a loading mechanism, a loading station, and a testing station. The solar cells can be transferred from the loading station to the testing station. The loading mechanism includes two sets of parallel loading and conveying mechanisms and a loading and conveying mechanism for transporting the solar cells from the two sets of loading and conveying mechanisms to the loading station. The testing device also includes a testing machine located at the testing station capable of simultaneously testing two solar cells. This dual-cell solar cell testing device can test the efficiency of two solar cells at once, effectively reducing equipment costs, improving testing efficiency, and thus increasing the production capacity of solar cell manufacturing.

Description

Technical Field

[0001] This invention relates to the field of solar cell manufacturing technology, and specifically to a dual-cell solar cell testing device and testing method. Background Technology

[0002] During the production and manufacturing of solar cells, it is necessary to test the efficiency of the cells using testing equipment. However, existing testing equipment can only test one cell at a time, resulting in low testing efficiency and thus affecting the production capacity of solar cells. Summary of the Invention

[0003] The purpose of this invention is to address the problems in the prior art by providing an improved dual-cell battery testing device.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A dual-cell solar cell testing device includes a feeding mechanism. The testing device has a feeding station and a testing station. The solar cells can be transferred from the feeding station to the testing station. The feeding mechanism includes two sets of parallel feeding and conveying mechanisms and a feeding and conveying mechanism for transporting the solar cells from the two sets of feeding and conveying mechanisms to the feeding station. The testing device also includes a testing machine located at the testing station that can test two solar cells simultaneously.

[0006] Preferably, the testing machine includes a probe assembly, which includes an upper fixed frame that can be slidably mounted up and down, a plurality of upper probes mounted on the upper fixed frame, a lower fixed frame that can be slidably mounted up and down, and a plurality of lower probes mounted on the lower fixed frame. The upper fixed frame and the lower fixed frame each have two non-conductive areas, and the upper probes and the lower probes are respectively disposed in the two non-conductive areas.

[0007] Furthermore, both the upper fixing frame and the lower fixing frame are made of printed circuit boards.

[0008] Preferably, the testing device further includes a detection mechanism for testing the positional deviation of the battery cell and an XYT adjustment mechanism for adjusting the angle of the battery cell in the X-axis direction, Y-axis direction and XY plane, and the feeding and conveying mechanism can be adjusted in position along the X-axis direction on the XYT adjustment mechanism.

[0009] Furthermore, each of the feeding and conveying mechanism and the XYT adjustment mechanism is provided with a set. The feeding and conveying mechanism includes two sets of suction cup assemblies. The two sets of suction cup assemblies are respectively arranged in one-to-one correspondence with the two sets of feeding and conveying mechanisms. Each set of suction cup assemblies can pick up the battery cells on a set of feeding and conveying mechanisms and transport them to the feeding station position. The two sets of suction cup assemblies can be independently raised and lowered.

[0010] Furthermore, both the feeding and conveying mechanism and the XYT adjustment mechanism are provided in two sets. Each XYT adjustment mechanism is equipped with a feeding and conveying mechanism. Each feeding and conveying mechanism includes a set of suction cup components that can be raised and lowered. The suction cup components of the two feeding and conveying mechanisms are respectively configured one-to-one with the two feeding and conveying mechanisms. Each set of suction cup components can pick up the battery cells on a feeding and conveying mechanism and transport them to the feeding station position.

[0011] Preferably, the testing device further includes a turntable mechanism, which includes a rotatable rotating worktable and multiple working platforms arranged on the rotating worktable. The loading station and the testing station are arranged sequentially on the trajectory of the rotating worktable driving the various working platforms to rotate. At least two battery cells can be placed side by side on each working platform at the same time.

[0012] Preferably, the testing device further includes a material unloading station, and the testing device further includes a material unloading mechanism, which includes two sets of parallel material unloading conveying mechanisms and a material unloading transport mechanism capable of simultaneously transporting two battery cells from the material unloading station to the two sets of material unloading conveying mechanisms.

[0013] The present invention also provides a dual-cell battery testing method, which uses the testing device described above for testing. The testing method includes: transporting two battery cells through two sets of the feeding and conveying mechanisms respectively; after being transported to a set position, the feeding and conveying mechanism grabs the battery cells from the two sets of the feeding and conveying mechanisms and transports the two battery cells to the feeding station position; after being transferred to the testing station position, the efficiency of the two battery cells is simultaneously detected by the testing machine.

[0014] Preferably, the feeding and conveying mechanism simultaneously grabs battery cells from two sets of feeding and conveying mechanisms, and adjusts the positions of the two battery cells sequentially when transporting them to the feeding station position, and places the two battery cells at the feeding station position sequentially.

[0015] Preferably, the feeding and conveying mechanism successively grabs the battery cells from two sets of the feeding and conveying mechanisms, adjusts the positions of the two battery cells one after the other, and simultaneously transports the two battery cells to the feeding station and places them at the feeding station.

[0016] Preferably, the feeding and conveying mechanism simultaneously grabs battery cells from two sets of the feeding and conveying mechanisms, and while simultaneously transporting the two battery cells to the feeding station, adjusts the positions of the two battery cells and places them at the feeding station. Alternatively, the feeding and conveying mechanism simultaneously grabs battery cells from two sets of the feeding and conveying mechanisms, adjusts the positions of the two battery cells, and then simultaneously transports the two battery cells to the feeding station and places them at the feeding station.

[0017] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the dual-cell testing device of the present invention has a simple structure, and the efficiency of two cells can be tested at one time through the testing device, which can effectively reduce equipment costs, improve testing efficiency, and thus increase the production capacity of cell manufacturing. Attached Figure Description

[0018] Appendix Figure 1 This is a perspective view of the dual-cell battery testing device of the present invention (Example 1).

[0019] Appendix Figure 2 This is a front view of the dual-cell battery testing device of the present invention (Example 1).

[0020] Appendix Figure 3 This is a top view of the dual-cell battery testing device of the present invention (Example 1).

[0021] Appendix Figure 4 This is a perspective view of the dual-cell battery testing device of the present invention (Example 2).

[0022] Appendix Figure 5 This is a front view of the dual-cell battery testing device of the present invention (Example 2).

[0023] Appendix Figure 6 This is a top view of the dual-cell battery testing device of the present invention (Example 2).

[0024] Appendix Figure 7 This is a perspective view of the dual-cell battery testing device of the present invention (Example 3).

[0025] Appendix Figure 8 This is a front view of the dual-cell battery testing device of the present invention (Example 3).

[0026] Appendix Figure 9This is a top view of the dual-cell battery testing device of the present invention (Example 3).

[0027] Appendix Figure 10 This is a schematic diagram of the probe assembly of the dual-cell battery testing device of the present invention. Detailed Implementation

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0029] Example 1

[0030] See Figures 1-3 As shown, the dual-cell battery testing device of the present invention includes a feeding mechanism 1, a turntable mechanism 2, a testing machine 3, a discharging mechanism 4, and a controller (not shown in the figure).

[0031] The feeding mechanism 1 includes a feeding and conveying mechanism 11 for transferring solar cells, a feeding and conveying mechanism 12 for moving solar cells from the feeding and conveying mechanism 11 to the turntable mechanism 2, a detection mechanism 13 for testing the position deviation of the solar cells, and an XYT adjustment mechanism 14 for adjusting the position of the solar cells.

[0032] The feeding and conveying mechanism 11 is provided in two sets, which are arranged in parallel. The two sets of feeding and conveying mechanisms 11 can simultaneously transport two battery cells to the first working position CV1 of one set of feeding and conveying mechanisms 11 and the second working position CV2 of the other set of feeding and conveying mechanisms 11, respectively.

[0033] In this embodiment, a set of feeding and conveying mechanisms 12 is provided, which is movably arranged outside the set of feeding and conveying mechanisms 11. The feeding and conveying mechanism 12 includes a first fixed base 121 and two sets of suction cup assemblies, namely: a first suction cup assembly 122 and a second suction cup assembly 123. The first suction cup assembly 122 and the second suction cup assembly 123 can be independently raised and lowered on the first fixed base 121. The two sets of suction cup assemblies are respectively arranged one-to-one with the two sets of feeding and conveying mechanisms 11. The feeding and conveying mechanism 12 can be translated relative to the feeding and conveying mechanism 11 so that the first suction cup assembly 122 is located directly above the first working position CV1 and the second suction cup assembly 123 is located directly above the second working position CV2. Both the first suction cup assembly 122 and the second suction cup assembly 123 can generate vacuum suction to pick up the battery cells at the first working position CV1 and the second working position CV2. The loading and conveying mechanism 12 can also be translated to move the first suction cup assembly 122 and the second suction cup assembly 123 to the third station position CV3, so as to place the battery cells onto the turntable mechanism 2 located at the third station position CV3.

[0034] The testing mechanism 13 uses a CCD camera assembly. The controller is set with a reference position for the battery cell when testing the battery cell. The CCD camera assembly can test the actual position of the battery cell located at the first station position CV1 and the second station position CV2. The controller can calculate the positional deviation between the actual position of the battery cell and the reference position. This positional deviation is the basis for the adjustment of the XYT adjustment mechanism 14.

[0035] The XYT adjustment mechanism 14 can adjust the displacement of the solar cell along the X-axis direction (i.e., the transmission direction of the feeding and conveying mechanism 11), the displacement of the solar cell along the Y-axis direction (i.e., the transmission direction perpendicular to the feeding and conveying mechanism 11), and the rotation angle of the solar cell in the T-direction (i.e., the XY plane). The XYT adjustment mechanism 14 can adopt the structure of the prior art.

[0036] In this embodiment, an XYT adjustment mechanism 14 is provided, and a loading and conveying mechanism 12 is provided on the XYT adjustment mechanism 14. The loading and conveying mechanism 12 is movably provided on the adjustment mechanism 14 along the X-axis direction, i.e., the conveying direction of the loading and conveying mechanism 11. This allows the first suction cup assembly 122 to reciprocate between the first working position CV1 and the third working position CV3, and the second suction cup assembly 123 to reciprocate between the second working position CV2 and the third working position CV3. Moreover, after the first suction cup assembly 122 and the second suction cup assembly 123 pick up the battery cell, the positions of the battery cell in the X, Y, and T directions can be adjusted by adjusting the position of the loading and conveying mechanism 12 in the X, Y, and T directions.

[0037] The feeding mechanism 1 also includes a correction mechanism (not shown in the figure) disposed at the feeding end of the feeding conveying mechanism 11. The feeding end is located at one end of the feeding conveying mechanism 11 away from the first station position CV1 and the second station position CV2. The position of the battery cell on the feeding conveying mechanism 11 can be corrected by the correction mechanism.

[0038] The turntable mechanism 2 includes a rotatable rotary worktable 21, a drive mechanism for driving the rotary worktable 21 to rotate, and multiple work platforms 22 arranged on the rotary worktable 21. Each work platform 22 can hold at least two battery cells side by side. The trajectory of the rotary worktable 21 driving the various work platforms 22 to rotate sequentially passes through the third station position CV3, the fourth station position CV4, and the fifth station position CV5. The third station position CV3 is the loading station, the fourth station position CV4 is the testing station, and the fifth station position CV5 is the unloading station.

[0039] In this embodiment, the drive mechanism uses a DD motor.

[0040] In this embodiment, four workstations—loading station, testing station, unloading station, and preparation station—are sequentially arranged on the trajectory of the rotating worktable 21 driving each work platform 22 to rotate. The four workstations are evenly distributed along the circumference of the rotating worktable 21. Correspondingly, four work platforms 22 are evenly distributed along the circumference of the rotating worktable 21.

[0041] Each working platform 22 is equipped with a vacuum adsorption mechanism for adsorbing battery cells. Vacuum holes are provided on the upper surface of the working platform 22. The vacuum adsorption mechanism can generate a vacuum at each vacuum hole, thereby adsorbing the battery cells onto the working platform 22.

[0042] Tester 3 is used to test the efficiency of the solar cells. Tester 3 is set at the fourth station position CV4, which is the test station position.

[0043] The testing machine 3 includes two symmetrically arranged upright plates 31 and a probe assembly disposed between the two upright plates 31. The two ends of the probe assembly are respectively slidably disposed on the upright plate 31 on the corresponding side.

[0044] Specifically, such as Figure 10 As shown, the probe assembly includes an upper fixing frame 32 disposed between two upright plates 31, a plurality of upper probes 34 disposed on the upper fixing frame 32, a lower fixing frame 33 and a plurality of lower probes 35 disposed on the lower fixing frame 33, and the two ends of the upper fixing frame 32 and the lower fixing frame 33 are respectively slidably disposed on the upright plate 31 on the corresponding side.

[0045] Both the upper mounting bracket 32 ​​and the lower mounting bracket 33 are made of printed circuit boards, allowing each to be divided into two non-conductive regions: a first region A and a second region B. Several upper probes 34 are provided in both regions A and B of the upper mounting bracket 32, and several lower probes 35 are provided in both regions A and B of the lower mounting bracket 33, with each probe corresponding to the previous one. I-lines are provided in both regions A and B of the upper mounting bracket 32, and V-lines are provided in both regions A and B of the lower mounting bracket 33. This allows for simultaneous efficiency testing of two solar cells using the same testing machine 3.

[0046] The unloading mechanism 4 includes an unloading conveying mechanism 41 for transporting battery cells and an unloading transporting mechanism 42 for moving battery cells from the turntable mechanism 2 onto the unloading conveying mechanism 41.

[0047] The feeding and conveying mechanism 41 is provided in two sets, which are arranged in parallel and can simultaneously convey two battery cells.

[0048] In this embodiment, a set of unloading and conveying mechanisms 42 is provided, which are movably arranged outside the set of unloading and conveying mechanisms 41. The unloading and conveying mechanism 42 includes a second fixed base 421, a third suction cup assembly 422, and a fourth suction cup assembly 423. The third suction cup assembly 422 and the fourth suction cup assembly 423 are both vertically and vertically mounted on the second fixed base 421. The unloading and conveying mechanism 42 can be translated relative to the unloading and conveying mechanism 41 to position the third suction cup assembly 422 and the fourth suction cup assembly 423 directly above the fifth station position CV5, i.e., the unloading station position, thereby picking up the battery cells located on the turntable mechanism 2. The unloading and conveying mechanism 42 can also be translated relative to the unloading and conveying mechanism 41 to position the third suction cup assembly 422 at the sixth station position CV6 of one unloading and conveying mechanism 41 and the fourth suction cup assembly 423 at the seventh station position CV7 of another unloading and conveying mechanism 41, so as to transfer the battery cells out of the testing device.

[0049] The feeding and conveying mechanism 11, the feeding and handling mechanism 12, the detection mechanism 13, the XYT adjustment mechanism 14, the drive mechanism of the turntable mechanism 2, the unloading and conveying mechanism 41, and the unloading and handling mechanism 42 are all electrically connected to the controller.

[0050] The working principle of the testing device in this embodiment is as follows:

[0051] (1) In the initial state, the first suction cup assembly 122 of the loading and conveying mechanism 12 is located directly above the first station position CV1, the second suction cup assembly 123 is located directly above the second station position CV2, one of the working platforms 22 of the turntable mechanism 2 is located at the third station position CV3, and the third suction cup assembly 422 and the fourth suction cup assembly 423 of the unloading and conveying mechanism 42 are located directly above the fifth station position CV5;

[0052] (2) The two solar cells are transported by two sets of feeding and conveying mechanisms 11 respectively. In the initial stage of the transport, the position of the solar cells is corrected by the correction mechanism.

[0053] (3) Two battery cells are simultaneously transferred to the first station position CV1 and the second station position CV2. The first suction cup assembly 122 descends to grab the battery cell located at the first station position CV1, and the second suction cup assembly 123 descends to grab the battery cell located at the second station position CV2. Here, the first suction cup assembly 122 and the second suction cup assembly 123 can move synchronously or asynchronously. The loading and conveying mechanism 12 moves relative to the loading and conveying mechanism 11 until the first suction cup assembly 122 and the second suction cup assembly 123 move to the third station position CV3 at the same time.

[0054] (4) The XYT adjustment mechanism 14 adjusts the position of the battery cell based on the positional deviation between the actual position of the battery cell at the first work station CV1 gripped by the first suction cup assembly 122 and the reference position. After the adjustment is completed, the first suction cup assembly 122 descends and places the battery cell it gripped onto the work platform 22 at the third work station CV3. During this process, the second suction cup assembly 123 remains stationary. The XYT adjustment mechanism 14 then adjusts the position of the battery cell based on the positional deviation between the actual position of the battery cell at the second work station CV2 gripped by the second suction cup assembly 123 and the reference position. After the adjustment is completed, the second suction cup assembly 123 descends and places the battery cell it gripped onto the work platform 22 at the third work station CV3. During this process, the first suction cup assembly 122 remains stationary. The first suction cup assembly 122 and the second suction cup assembly 123 rise. They can move synchronously or asynchronously. The loading and conveying mechanism 12 moves relative to the loading and conveying mechanism 11 back to the initial position.

[0055] (5) The vacuum adsorption mechanism is turned on, and the two battery cells located at the third station position CV3 are adsorbed onto the working platform 22. The rotating worktable 21 drives each working platform 22 to rotate 90 degrees, so that the working platform 22 carrying the two battery cells rotates to the fourth station position CV4, which is the test station position.

[0056] (6) The vacuum adsorption mechanism on the working platform 22 releases the vacuum, and the battery cell is in a free state without any force. The testing machine 3 works, the upper fixed frame 32 drives the upper probe 34 in the first area A and the second area B to move downward, and the lower fixed frame 33 drives the lower probe 35 in the first area A and the second area B to move upward. The upper probe 34 and the lower probe 35 press the battery cell in the upper and lower directions to perform the test. After the test is completed, the upper fixed frame 32 drives the upper probe 34 to move upward, and the lower fixed frame 33 drives the lower probe 35 to move downward. The vacuum adsorption mechanism on the working platform 22 restarts and adsorbs the battery cell onto the working platform 22.

[0057] (7) The rotating worktable 21 drives each work platform 22 to continue rotating 90 degrees along the previous rotation direction, so that the work platform 22 carrying two battery cells rotates to the fifth work position CV5, i.e. the unloading work position.

[0058] (8) The third suction cup assembly 422 descends to grab a battery cell at the fifth station position CV5, and the fourth suction cup assembly 423 descends to grab another battery cell at the fifth station position CV5. The unloading and conveying mechanism 42 moves relative to the unloading and conveying mechanism 41 to position the third suction cup assembly 422 at the sixth station position CV6 of one unloading and conveying mechanism 41 and the fourth suction cup assembly 423 at the seventh station position CV7 of another unloading and conveying mechanism 41. The battery cells are placed on the two sets of unloading and conveying mechanisms 41 respectively. The third suction cup assembly 422 and the fourth suction cup assembly 423 rise, and the unloading and conveying mechanism 42 moves relative to the unloading and conveying mechanism 41 back to the initial state. During the above process, the third suction cup assembly 422 and the fourth suction cup assembly 423 can move synchronously or asynchronously.

[0059] (9) The two sets of feeding and conveying mechanisms 41 are started to transmit the two battery cells from the test device respectively.

[0060] Example 2

[0061] like Figures 4-6 As shown, this embodiment differs from Embodiment 1 in that its working principle is somewhat different, as detailed below:

[0062] (1) In the initial state, the first suction cup assembly 122 of the loading and conveying mechanism 12 is located directly above the first station position CV1, the second suction cup assembly 123 is located directly above the second station position CV2, one of the working platforms 22 of the turntable mechanism 2 is located at the third station position CV3, and the third suction cup assembly 422 and the fourth suction cup assembly 423 of the unloading and conveying mechanism 42 are located directly above the fifth station position CV5;

[0063] (2) The two solar cells are transported by two sets of feeding and conveying mechanisms 11 respectively. In the initial stage of the transport, the position of the solar cells is corrected by the correction mechanism.

[0064] (3) Two battery cells are simultaneously transferred to the first workstation position CV1 and the second workstation position CV2. The first suction cup assembly 122 descends to grab the battery cell located at the first workstation position CV1, and then the first suction cup assembly 122 rises. The XYT adjustment mechanism 14 adjusts the position of the battery cell based on the positional deviation between the actual position of the battery cell grabbed by the first suction cup assembly 122 at the first workstation position CV1 and the reference position. During this process, the second suction cup assembly 123 remains stationary. Next, the second suction cup assembly 123 descends to grab the battery cell at the second workstation position CV2, and then the second suction cup assembly 123 rises. The XYT adjustment mechanism 14 adjusts the position of the battery cell based on the positional deviation between the actual position of the battery cell grabbed by the second suction cup assembly 123 at the second workstation position CV2 and the reference position. During this process, the first suction cup assembly 122 remains stationary.

[0065] (4) The loading and conveying mechanism 12 moves relative to the loading and conveying mechanism 11 until the first suction cup assembly 122 and the second suction cup assembly 123 move simultaneously to the third work station position CV3. The first suction cup assembly 122 and the second suction cup assembly 123 both descend. Preferably, the two can move synchronously and place the battery cells they grab onto the work platform 22 located at the third work station position CV3 at the same time. Of course, they can also move asynchronously. The first suction cup assembly 122 and the second suction cup assembly 123 rise, and the loading and conveying mechanism 12 moves relative to the loading and conveying mechanism 11 back to the initial position.

[0066] The subsequent testing steps of this testing device are the same as (5) to (9) in Example 1, and will not be described in detail here.

[0067] Example 3

[0068] like Figures 7-9 As shown, in this embodiment, two sets of loading and conveying mechanisms 12 are provided. Each set of loading and conveying mechanisms 12 is movably disposed outside each set of loading and conveying mechanisms 11. Each set of loading and conveying mechanisms 12 includes a suction cup assembly, i.e., a fifth suction cup assembly 124, which is vertically movable and mounted on the first fixed base 121. The fifth suction cup assemblies 124 of the two sets of loading and conveying mechanisms 12 are respectively configured one-to-one with the two sets of loading and conveying mechanisms 11. Each set of loading and conveying mechanisms 12 handles the battery cells on its corresponding set of loading and conveying mechanisms 11. Two sets of XYT adjustment mechanisms 14 are provided, with each set of XYT adjustment mechanisms 14 corresponding to one set of loading and conveying mechanisms 12. That is, two battery cells are handled by the two sets of loading and conveying mechanisms 12 respectively, and their positions are adjusted by the two sets of XYT adjustment mechanisms 14 respectively.

[0069] The working principle of the testing device in this embodiment is as follows:

[0070] (1) In the initial state, the fifth suction cup assembly 124 of the two sets of loading and conveying mechanisms 12 are located directly above the first station position CV1 and the second station position CV2, respectively. One of the working platforms 22 of the turntable mechanism 2 is located at the third station position CV3. The third suction cup assembly 422 and the fourth suction cup assembly 423 of the unloading and conveying mechanism 42 are located directly above the fifth station position CV5.

[0071] (2) The two solar cells are transported by two sets of feeding and conveying mechanisms 11 respectively. In the initial stage of the transport, the position of the solar cells is corrected by the correction mechanism.

[0072] (3) Two battery cells are simultaneously transferred to the first station position CV1 and the second station position CV2. The fifth suction cup components 124 of the two sets of loading and conveying mechanisms 12 descend and grab the battery cells located at the first station position CV1 and the second station position CV2 respectively. Here, the two sets of fifth suction cup components 124 can move synchronously or asynchronously. The two sets of loading and conveying mechanisms 12 move relative to the loading and conveying mechanism 11 until the two sets of fifth suction cup components 124 move to the third station position CV3.

[0073] (4) A set of XYT adjustment mechanisms 14 adjusts the position of the battery cell at the first work station CV1 based on the positional deviation between the actual position and the reference position of the battery cell gripped by the fifth suction cup assembly 124. After the adjustment is completed, the fifth suction cup assembly 124 descends and places the battery cell it gripped onto the work platform 22 at the third work station CV3. During this process, another set of XYT adjustment mechanisms 14 adjusts the position of the battery cell at the second work station CV2 based on the positional deviation between the actual position and the reference position of the battery cell gripped by the fifth suction cup assembly 124. After the adjustment is completed, the fifth suction cup assembly 124 descends and places the battery cell it gripped onto the work platform 22 at the third work station CV3. The two sets of fifth suction cup assemblies 124 rise, and the two sets of loading and conveying mechanisms 12 move relative to the loading and conveying mechanism 11 back to the initial position.

[0074] In the above process, it is preferable that the two sets of material handling mechanisms 12 operate synchronously and the two sets of XYT adjustment mechanisms 14 operate synchronously.

[0075] The subsequent testing steps of this testing device are the same as (5) to (9) in Example 1, and will not be described in detail here.

[0076] In this embodiment, after the fifth suction cup components 124 of the two sets of loading and conveying mechanisms 12 descend and respectively grab the battery cells located at the first work position CV1 and the second work position CV2, the positions of the battery cells can be adjusted by the two sets of XYT adjustment mechanisms 14 according to the positional deviation between the actual position of the battery cell grabbed by the fifth suction cup component 124 and the reference position. Then, the two sets of loading and conveying mechanisms 12 are moved relative to the loading and conveying mechanism 11 until the two sets of fifth suction cup components 124 move to the third work position CV3, and at the same time, the battery cells grabbed by the two sets of fifth suction cup components 124 are placed on the working platform 22 located at the third work position CV3.

[0077] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A dual-cell solar cell testing device, comprising a feeding mechanism, the testing device having a feeding station and a testing station, wherein the solar cells can be transferred from the feeding station to the testing station, characterized in that: The feeding mechanism includes two sets of parallel feeding and conveying mechanisms and a feeding and conveying mechanism for transporting the battery cells from the two sets of feeding and conveying mechanisms to the feeding station. The testing device also includes a testing machine located at the testing station that can test two battery cells simultaneously. The testing machine includes a probe assembly, which includes an upper fixed frame that can slide up and down, a plurality of upper probes disposed on the upper fixed frame, a lower fixed frame that can slide up and down, and a plurality of lower probes disposed on the lower fixed frame. Both the upper fixed frame and the lower fixed frame are made of printed circuit boards. Both the upper fixed frame and the lower fixed frame are divided into two non-conductive areas, namely a first area and a second area. A plurality of upper probes are disposed in both the first area and the second area of ​​the upper fixed frame, and a plurality of lower probes are disposed in both the first area and the second area of ​​the lower fixed frame. The upper probes and the lower probes are disposed in a one-to-one correspondence. I-lines are disposed in the first area and the second area of ​​the upper fixed frame, and V-lines are disposed in the first area and the second area of ​​the lower fixed frame. The feeding mechanism also includes a detection mechanism for testing the positional deviation of the battery cells and an XYT adjustment mechanism for adjusting the angle of the battery cells in the X-axis direction, Y-axis direction and XY plane. The feeding and conveying mechanism can be adjusted in position along the X-axis direction on the XYT adjustment mechanism. Two battery cells are transported by two sets of feeding and conveying mechanisms respectively. After being transported to the set position, the feeding and conveying mechanism simultaneously grabs the battery cells from the two sets of feeding and conveying mechanisms and simultaneously transports the two battery cells to the feeding station position. The positions of the two battery cells are adjusted one after the other and placed at the feeding station position. After being transferred to the testing station position, the efficiency of the two battery cells is tested simultaneously by the testing machine. Alternatively, two battery cells can be transported to a set position by two sets of feeding and conveying mechanisms. The feeding and conveying mechanism then grabs the battery cells from the two sets of feeding and conveying mechanisms, adjusts the positions of the two battery cells, and simultaneously transports and places the two battery cells at the feeding station. After being transferred to the testing station, the efficiency of the two battery cells is simultaneously tested by the testing machine. Alternatively, two battery cells can be transported to a set position via two sets of feeding and conveying mechanisms respectively; then, the feeding and handling mechanism simultaneously grabs the battery cells from both sets of feeding and conveying mechanisms, moves the two battery cells to the feeding station, adjusts their positions, and places them at the feeding station; or, the feeding and handling mechanism simultaneously grabs the battery cells from both sets of feeding and conveying mechanisms, adjusts their positions, moves the two battery cells to the feeding station, and places them at the feeding station; after being transferred to the testing station, the efficiency of the two battery cells is simultaneously tested by the testing machine.

2. The dual-cell battery testing device according to claim 1, characterized in that: The feeding and conveying mechanism and the XYT adjustment mechanism are each provided in a set. The feeding and conveying mechanism includes two sets of suction cup assemblies. The two sets of suction cup assemblies are respectively arranged in one-to-one correspondence with the two sets of feeding and conveying mechanisms. Each set of suction cup assemblies can pick up the battery cells on a set of feeding and conveying mechanisms and transport them to the feeding station position. The two sets of suction cup assemblies can be independently set to move up and down.

3. The dual-cell battery testing device according to claim 1, characterized in that: The loading and conveying mechanism and the XYT adjustment mechanism are each provided in two sets. Each XYT adjustment mechanism is provided with one set of loading and conveying mechanisms. Each set of loading and conveying mechanisms includes a set of suction cup components that can be raised and lowered. The suction cup components of the two sets of loading and conveying mechanisms are respectively provided in one-to-one correspondence with the two sets of loading and conveying mechanisms. Each set of suction cup components can pick up the battery cells on the set of loading and conveying mechanisms and transport them to the loading station position.

4. The dual-cell battery testing device according to claim 1, characterized in that: The testing device also includes a turntable mechanism, which includes a rotatable rotating worktable and multiple working platforms arranged on the rotating worktable. The loading station and the testing station are arranged sequentially on the trajectory of the rotating worktable driving the various working platforms to rotate. At least two battery cells can be placed side by side on each working platform at the same time.

5. The dual-cell battery testing device according to claim 1, characterized in that: The testing device also has a material unloading station and a material unloading mechanism. The material unloading mechanism includes two sets of parallel material unloading and conveying mechanisms and a material unloading and handling mechanism that can simultaneously transport two battery cells from the material unloading station to the two sets of material unloading and conveying mechanisms.

6. A method for testing dual-cell solar cells, characterized in that: The test is performed using the testing device as described in any one of claims 1 to 5. The testing method includes: transferring two battery cells through two sets of the feeding and conveying mechanisms respectively; after the cells are transferred to a set position, the feeding and conveying mechanism grabs the battery cells from the two sets of the feeding and conveying mechanisms and moves the two battery cells to the feeding station position; after the cells are transferred to the testing station position, the efficiency of the two battery cells is simultaneously detected by the testing machine.

7. The dual-cell battery testing method according to claim 6, characterized in that: The feeding and conveying mechanism simultaneously grabs battery cells from two sets of feeding and conveying mechanisms, and adjusts the positions of the two battery cells one after the other when transporting them to the feeding station position, and places the two battery cells one after the other at the feeding station position.

8. The dual-cell battery testing method according to claim 6, characterized in that: The feeding and conveying mechanism successively grabs the battery cells from the two sets of feeding and conveying mechanisms, adjusts the positions of the two battery cells one after the other, and simultaneously transports the two battery cells to the feeding station and places them at the feeding station.

9. The dual-cell battery testing method according to claim 6, characterized in that: The feeding and conveying mechanism simultaneously grabs battery cells from two sets of the feeding and conveying mechanisms, and simultaneously moves the two battery cells to the feeding station position while adjusting their positions and placing them at the feeding station position. Alternatively, the feeding and conveying mechanism simultaneously grabs battery cells from two sets of the feeding and conveying mechanisms, adjusts their positions, moves them to the feeding station position, and places them at the feeding station position.

Images