Battery piece test assembly

Abstract

The utility model discloses a battery piece test assembly, which relates to the technical field of battery piece production, and comprises a fixed support and a plurality of side-by-side metal wires, two ends of the plurality of side-by-side metal wires are fixed on the fixed support, the fixed support is provided with a supporting part abutted against the bottoms of the metal wires, and the fixed support is provided with a hollow part. The hollow parts are arranged between two adjacent metal wires, the supporting parts can provide back support when the metal wires are in contact with the battery piece, so that the metal wires are fully attached to the surface of the battery piece, the hollow parts are arranged on the fixing support between the metal wires, and a light source can conveniently penetrate through the battery piece testing assembly to irradiate the surface of the battery piece to be tested through the hollow parts. The shading rate of a light source is reduced, and the accuracy of cell efficiency testing is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery piece production technical field especially relates to a battery piece test subassembly. BACKGROUND

[0002] The battery piece is tested by testing instrument after making, and the conversion efficiency of the battery piece is tested to sort out the battery piece with different efficiency levels, and is used for making photovoltaic module, and in the prior art, the probe or the metal wire is arranged on the upper and lower clamps, the battery piece to be tested is clamped between the upper clamp and the lower clamp, the probe or the metal wire is in contact with the surface of the battery piece, the support element is not arranged on the back of the battery piece, so that the probe and the metal wire cannot be in full contact with the grid line on the surface of the battery piece, and the test can result in the distortion of the electric performance data, and the mismatch of the photovoltaic module can also result in the increase of power loss. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a battery piece test subassembly, which comprises: a fixed support and a plurality of metal wires arranged side by side, both ends of each metal wire are fixed on the fixed support, a support part abutting against the bottom of the metal wire is arranged on the fixed support, a hollow part is arranged on the fixed support, and the hollow part is arranged between two adjacent metal wires.

[0004] Optionally, the support part comprises a rib plate fixedly connected with the fixed support, and the rib plate is used for supporting the metal wire.

[0005] Optionally, the support part comprises a rib plate fixedly connected with the fixed support and a rubber strip mounted on the top of the rib plate, and the rubber strip is used for supporting the metal wire.

[0006] Optionally, a plurality of protrusions are arranged on the top of the rubber strip.

[0007] Optionally, the metal wire is a strip-shaped metal wire.

[0008] Optionally, the utility model further comprises a first driving assembly and a first mounting seat, the fixed support is connected with the first mounting seat through an elastic component, and the first driving assembly is used for driving the first mounting seat to move up and down.

[0009] Optionally, the elastic component comprises a pad plate connected with the first mounting seat and a connecting plate connected on the pad plate, a plurality of elastic columns are arranged on the connecting plate, the elastic columns are arranged on the upper part of the connecting plate and elastically abut against the top of the fixed support, and / or the elastic columns are arranged on the lower part of the connecting plate and elastically abut against the bottom of the fixed support.

[0010] Optionally, a plurality of elastic columns are arranged, and a plurality of positioning holes matched with the top ends of part of the elastic columns are arranged on the two sides of the fixed support.

[0011] Optionally, two pairs of sides of the fixing support are provided with wire fixing supports, and the metal wires are provided with locking heads at two ends, and the locking heads are elastically connected with the wire fixing supports.

[0012] Optionally, the battery piece testing assembly further comprises a receiving assembly for receiving the battery piece, the receiving assembly comprises a base support arranged opposite to the fixing support and a second mounting seat connected with the base support, a plurality of metal wires are arranged on the base support in parallel and opposite to the metal wires on the fixing support, and the second mounting seat is further connected with a second driving assembly, and the first driving assembly and the second driving assembly are respectively used for driving the fixing support and the base support to move relatively to measure the front surface and the back surface of the same battery piece.

[0013] The technical scheme provided by the utility model discloses that the fixing support of fixed metal wire is correspondingly provided with the support part for supporting the metal wire, the support part can provide back support when the metal wire contacts the battery piece, so that the metal wire and the battery piece surface are fully attached, and the hollow part is arranged on the fixing support between the metal wires, the hollow part is used for the light source on the battery piece I-V (current-voltage) test module to irradiate on the surface of the battery piece to be tested through the battery piece testing assembly, so as to reduce the light shielding rate of the light source on the test module and improve the accuracy of the battery piece efficiency test. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0015] Figure 1 It is a structural schematic diagram of the battery piece testing assembly provided by the utility model;

[0016] Figure 2 It is Figure 1 It is a local enlarged schematic diagram of A in the middle;

[0017] Figure 3 It is a front view of the battery piece testing assembly provided by the utility model;

[0018] Figure 4 It is a structural schematic diagram of another battery piece testing assembly of the utility model.

[0019] Among them, the reference signs are:

[0020] 1, fixed support; 2, metal wire; 3, support part; 31, rib plate; 32, adhesive tape; 4, hollow part; 5, wire fixing frame; 6, lock head; 7, first driving assembly; 8, first mounting seat; 9, elastic part; 91, pad; 92, connecting plate; 93, elastic column; 10, receiving assembly; 11, second driving assembly; 12, second mounting seat. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0023] As shown in Figure 1 , Figure 2 A battery piece test assembly, comprising: a fixed support 1 and a plurality of metal wires 2 arranged side by side, both ends of each metal wire 2 are fixedly connected to the fixed support 1, the fixed support 1 is provided with a support part 3 abutting the bottom of the metal wire 2, the support part 3 is used to support the metal wire 2, so that the metal wire 2 is tensioned on the top surface of the support part 3, the back of the metal wire 2 is given a supporting force, which facilitates the metal wire 2 to be closely attached to the surface of the battery piece, improves the adaptability of the battery piece and the metal wire 2, and a hollow part 4 is further arranged on the fixed support 1, the hollow part 4 is arranged between the adjacent two metal wires 2, the hollow part 4 allows the light source on the test module for testing the battery piece to pass through the fixed support 1 and irradiate on the surface of the battery piece, the width of the support part 3 is slightly larger than the width of the metal wire 2, and the hollow part 4 between the support parts 3 is projected on the surface of the battery piece with a large area, so as to increase the irradiation area of the light source on the test module on the battery piece and improve the accuracy of the efficiency test of the battery piece.

[0024] In some embodiments, as shown in Figure 3 The support part 3 comprises a rib plate 31 fixedly connected with the fixed support 1, the rib plate 31 is used to support the metal wire 2, the top of the rib plate 31 is provided with a horizontal support surface in contact with the metal wire 2, the metal wire 2 is tensioned on the surface of the horizontal support surface, the metal wire 2 attached to the horizontal support surface is used to contact the surface of the battery piece, and the surface width of the horizontal support surface is equal to or greater than the width of the metal wire 2, so as to stably support the metal wire 2 to contact the surface of the battery piece.

[0025] In addition, with reference to Figure 3As shown, the support part 3 further comprises a rib plate 31 fixedly connected with the fixing support 1 and a rubber strip 32 installed on the top of the rib plate 31, the bottom of the rubber strip 32 is provided with a clamping groove, the rubber strip 32 is detachably connected on the top of the rib plate 31 through the clamping groove, the metal wire 2 is supported on the top of the rubber strip 32, the width of the top surface of the rubber strip 32 is equal to or slightly greater than the width of the metal wire 2, so as to ensure the stable support of the metal wire 2, when the metal wire 2 contacts the surface of the battery piece, the rubber strip 32 will have a slight elastic deformation, which reduces the pressing strength of the metal wire 2 contacting the surface of the battery piece, and at the same time, can also make the metal wire 2 fully contact the surface of the battery piece, thereby improving the accuracy of the battery piece test assembly in testing the efficiency of the battery piece.

[0026] It should be noted that the hollow part 4 in the present application can be a gap between the rib plates 31, or a through hole provided on the top of the rib plate 31, and the hollow part 4 has a light transmission effect.

[0027] In some embodiments, a plurality of protrusions are further provided on the top of the rubber strip 32, the protrusions can be regularly or irregularly arranged in the shape of teeth or hemispheres, and the plurality of protrusions are used to contact the metal wire 2, so that the metal wire 2 can be pressed against the surface of the battery piece by the protrusions when contacting the surface of the battery piece, and the protrusions can increase the elastic floating amount of the contact with the battery piece, so that the metal wire 2 can adapt to different bending radii when pressing against the battery piece, and will not damage the grid lines on the battery piece.

[0028] Preferably, the metal wire 2 is a strip-shaped metal wire, the bottom of the strip-shaped metal wire is attached to the rubber strip 32, and the top is attached to the surface of the battery piece, the strip-shaped metal wire can contact more surfaces of the battery piece, so that the contact between the strip-shaped metal wire and the battery piece is more stable, the performance of the battery piece is not distorted, and the utilization rate of the assembly is improved. In addition, the battery piece test assembly proposed in the present application is preferably applied to battery pieces without main grids, and ordinary probe type test devices cannot correspond to the fine grid lines in the battery pieces without main grids, and cannot meet the requirements of current load matching, while the metal wire 2 used in the present application is a strip-shaped metal wire, which can more fully contact the fine grid lines on the surface of the battery piece, thereby further improving the accuracy of the test data of the battery piece.

[0029] In some embodiments, the battery piece test assembly further comprises a first driving assembly 7 and a first mounting seat 8, the first mounting seat 8 is connected with the fixing support 1 through an elastic component 9, and the first driving assembly 7 is used to drive the first mounting seat 8 to move up and down, and at the same time drive the fixing support 1 to move closer to or away from the test battery piece.

[0030] In some embodiments, as shown in FIG. 4, the first driving assembly 7 is a linear motor, the first mounting seat 8 is a linear guide rail, and the fixing support 1 is a test head. Figure 4As shown, the elastic component 9 includes a flexible pad or spring structure, the flexible pad is fixed at the connection between the first mounting seat 8 and the fixed support 1, and the flexible pad includes a flexible material such as a silica gel pad, a rubber pad, etc.; the spring structure is pressed between the first mounting seat 8 and the fixed support 1 by a guide rod, and when the metal wires 2 press the battery sheet, the spring structure can be compressed, so that the fixed support 1 is floatingly connected to the first mounting seat 8, and further, the fixed support 1 as a whole can elastically act on the battery sheet, reducing the pressure of the plurality of metal wires 2 pressing the battery sheet at the same time.

[0031] Specifically, as shown in Figure 3 、 Figure 4 , the elastic component 9 includes a pad plate 91 connected with the first mounting seat 8, and a connecting plate 92 connected to the pad plate 91, and the connecting plate 92 is provided with an elastic column 93, the elastic column 93 is arranged at the upper part of the connecting plate 92 and elastically presses the top of the fixed support 1; or, the elastic column 93 is arranged at the lower part of the connecting plate 92, and the top of the elastic column 93 elastically abuts against the top of the fixed support 1; or, the elastic column 93 is arranged at the upper part and the lower part of the connecting plate 92 at the same time, and elastically abuts against the upper and lower surfaces of the fixed support 1, and the fixed support 1 is clamped and fixed between the elastic columns 93, the elastic column 93 can elastically press the fixed support 1, so that the metal wires 2 on the fixed support 1 are in floatingly pressing contact with the battery sheet, the metal wires 2 can be in floatingly contact with the battery sheet, reducing the strength of the contact between the metal wires 2 and the battery sheet while enabling the metal wires 2 to fully contact the battery sheet, and improving the stability of the test data of the battery sheet.

[0032] In some embodiments, the elastic column 93 is provided with a plurality of elastic columns, wherein the two sides of the fixed support 1 are provided with positioning holes matched with the top ends of part of the elastic columns 93, and the elastic column 93 and the positioning hole cooperate to enable the fixed support 1 to be floatingly connected to the connecting plate 92 upward and downward, and not to move in the horizontal plane, so that the metal wires 2 are in accurate contact with the battery sheet, and the accuracy of the test of the battery sheet is improved.

[0033] In some embodiments, referring to Figure 2 、 Figure 3As shown, the fixed support 1 is provided with two pairs of side fixed wire holders 5, and the fixed wire holders 5 are fixed with lock heads 6 for pulling two ends of the metal wire 2, and the lock heads 6 are elastically connected with the fixed wire holders 5. On the one hand, the elastic connection includes the lock heads 6 and the U-shaped slot clamping on the fixed wire holders 5, the fixed wire holders 5 can be slightly deformed by being pulled by the metal wire 2, so that the metal wire 2 is elastically deformed, the lock heads 6 can also be directly taken out from the fixed wire holders 5, and the lock heads 6 at the two ends of the metal wire 2 can also adjust the length of the metal wire 2 therebetween; on the other hand, the elastic connection includes the spring connection between the lock heads 6 and the fixed wire holders 5, the spring can elastically pull the two ends of the metal wire 2, and the two ends of the metal wire 2 are elastically fixed with the fixed wire holders 5 through the lock heads 6, so that the tension of the metal wire 2 on the support part 3 can be flexibly adjusted, different tension degrees will cause different position accuracies of the contact with the surface of the battery piece, so as to adjust the measurement accuracy of the battery piece, and the metal wire 2 can be tensioned on the fixed support 1 even after a slight deformation when the metal wire 2 is in contact with the battery piece, and the metal wire 2 does not come off.

[0034] Preferably, with reference to Figure 3 As shown, the fixed position of the lock head 6 is lower than the contact surface of the support part 3 and the battery piece, the position of the lock head 6 on the fixed support 1 is lower than the horizontal support surface of the rib plate 31 supporting the metal wire 2, the horizontal support surface is used to fully contact the surface of the battery piece for measurement, the two ends of the metal wire 2 pulled by the lock head 6 are lower than the horizontal support surface, so that when the metal wire 2 is in contact with the battery piece, the lock heads 6 on both sides do not contact the surface of the battery piece, and do not exceed the surface of the battery piece, so as to prevent the pressure damage to the edge of the battery piece caused by the metal wire 2 pressing the battery piece.

[0035] In another scheme, as Figure 4 As shown, the battery piece testing assembly further includes a receiving assembly 10 for receiving the battery piece, the receiving assembly 10 includes a base support arranged opposite to the fixed support 1 and a second mounting seat 12 connected with the base support, the metal wire 2 is also arranged on the base support, the metal wire 2 on the fixed support 1 and the metal wire 2 on the base support are also arranged opposite to each other, the battery piece is placed between the two, the metal wire 2 on the fixed support 1 and the metal wire 2 on the base support correspond to the front surface and the back surface of the same battery piece respectively, and the second mounting seat 12 is further connected with a second driving assembly 11, and the first driving assembly 7 and the second driving assembly 11 are respectively used to drive the fixed support 1 and the base support to move relatively, so as to test the front surface and the back surface of the same battery piece together.

[0036] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] The principles and implementation modes of the present application are described by applying specific examples in the present application, the above embodiment description is only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in specific implementation modes and application scope. In conclusion, the content of the present application should not be understood as a limitation of the present application.

Claims

1. A battery cell testing assembly, characterized in that: The utility model relates to a kind of solar cell strip measuring device, including: Fixed support (1) and several metal wires (2) arranged side by side, both ends of each metal wire (2) are fixed on the fixed support (1), the fixed support (1) is provided with support portion (3) abutting at the bottom of the metal wire (2), the fixed support (1) is provided with hollow portion (4), and the hollow portion (4) is arranged between the two adjacent metal wires (2).

2. The battery cell testing assembly of claim 1, wherein, The support portion (3) includes a web (31) fixedly connected to the fixed support (1), and the web (31) is used to support the metal wire (2).

3. The battery cell testing assembly of claim 1, wherein, The support portion (3) includes a web (31) fixedly connected to the fixed support (1) and a rubber strip (32) mounted on the top of the web (31), and the rubber strip (32) is used to support the metal wire (2).

4. The battery sheet test assembly of claim 3, wherein, The top of the rubber strip (32) is provided with a plurality of protrusions.

5. The battery cell testing assembly of claim 1, wherein, The metal wire (2) is a strip-shaped metal wire (2).

6. The battery cell testing assembly of claim 1, wherein, It also includes a first driving assembly (7) and a first mounting seat (8), the fixed support (1) is connected to the first mounting seat (8) through an elastic component (9), and the first driving assembly (7) is used to drive the first mounting seat (8) to move up and down.

7. The battery sheet test assembly of claim 6, wherein, The elastic component (9) includes a backing plate (91) connected to the first mounting seat (8) and a connecting plate (92) connected to the backing plate (91), and the connecting plate (92) is provided with an elastic column (93), the elastic column (93) is arranged on the upper part of the connecting plate (92) and elastically abuts against the top of the fixed support (1), and / or the elastic column (93) is arranged on the lower part of the connecting plate (92) and elastically abuts against the bottom of the fixed support (1).

8. The battery sheet test assembly of claim 7, wherein, The elastic column (93) is provided with a plurality of elastic columns, and both sides of the fixed support (1) are provided with positioning holes matched with the top ends of part of the elastic columns (93).

9. The battery cell testing assembly of claim 1, wherein, Both sides of the fixed support (1) are provided with wire fixing frames (5), and both ends of the metal wire (2) are provided with lock heads (6), and the lock heads (6) are elastically connected to the wire fixing frames (5).

10. The battery cell testing assembly of claim 6, wherein, It also includes a receiving assembly (10) for receiving a battery sheet, the receiving assembly (10) includes a base support arranged opposite to the fixed support (1) and a second mounting seat (12) connected to the base support, the base support is provided with a plurality of metal wires (2) arranged side by side, and the metal wires (2) are arranged opposite to the metal wires (2) on the fixed support (1), and the second mounting seat (12) is further connected with a second driving assembly (11), and the first driving assembly (7) and the second driving assembly (11) are used to drive the fixed support (1) and the base support to move relative to each other, respectively, to measure the front and back surfaces of the same battery sheet.

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