Battery piece electrical performance testing device and sorting equipment

Abstract

The utility model discloses a battery piece electrical performance testing device and sorting equipment, and relates to the technical field of battery piece production, the battery piece electrical performance testing device comprises a driving mechanism, a supporting part, a front surface testing assembly, a back surface testing assembly and a testing module arranged above the supporting part, and the supporting part is arranged between the front surface testing assembly and the back surface testing assembly. The base is used for bearing cells; each of the front test assembly and the back test assembly comprises a fixed frame connected with the driving mechanism and a plurality of conductive wires arranged side by side on the fixed frame, and the driving mechanism is used for driving the front test assembly and the back test assembly to move towards the battery piece on the supporting part together so that the conductive wires are in full contact with the surface of the battery piece; the number of two sides of the battery piece is reduced, and the damage rate of the battery piece is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery piece production technical field especially relates to a battery piece electric performance testing arrangement and sorting equipment. BACKGROUND

[0002] Battery piece I-V detection, full name for "current-voltage test" can understand the performance of battery piece, thereby judges whether it meets the design requirement or production standard. In addition, I-V detection can also find the possible problems of battery piece in the production process, such as hidden crack, leakage and other defects, thereby timely repair and improvement. In prior art, battery piece is placed on the lower clamp provided with metal wire, and the upper part is provided with the upper clamp with metal wire, wherein the metal wire is resisted on a support, and the upper clamp and the lower clamp are fully clamped and contacted with the two surfaces of battery piece to test the performance of battery piece simultaneously, but the scheme directly places battery piece on the metal wire, and when the upper clamp and the lower clamp clamp battery piece, the contact area of metal wire and battery piece is small, and in the clamping process, battery piece is easily damaged. SUMMARY

[0003] To solve the above technical problems, the utility model provides a kind of battery piece electric performance testing arrangement and sorting equipment.

[0004] First, a kind of battery piece electric performance testing device includes: drive mechanism, support component, front test component and back test component and test module arranged above the support component, the support component is arranged between the front test component and the back test component, for receiving battery piece;The front test component and the back test component all include the fixed frame connected with the drive mechanism and the several side-by-side arranged conductive wires mounted on the fixed frame, and the drive mechanism is used to drive the front test component and the back test component to move to the battery piece on the support component, so that the conductive wire is fully contacted with the surface of the battery piece.

[0005] Optionally, the back test component is provided with a gap for accommodating the support component, and the gap makes the top surface of the support component lower than the top surface of the back test component.

[0006] Optionally, the support component is a conveying belt, and the conveying belt extends to both sides of the front test component for conveying the battery piece through the front test component in sequence.

[0007] Optionally, the drive mechanism includes a first driving member, and the first driving member is connected with the front test component and the back test component for driving the front test component and the back test component to move closer to or away from each other.

[0008] Optionally, the back testing assembly is provided with two groups, the two groups of the back testing assembly alternately carry the battery piece placed on the supporting part, the driving mechanism comprises a first lifting driving element connected with the front testing assembly lifting driving, two second lifting driving elements connected with the two groups of back testing assembly respectively and a second horizontal driving element connected with the two second lifting driving elements, the second lifting driving element is used for driving the two groups of back testing assembly to alternately move towards the front testing assembly in cooperation, and the second horizontal driving element is used for driving the two groups of back testing assembly connected on the two second lifting driving elements respectively to carry the front surface of the battery piece to contact the front testing assembly and then carry out from the lower part thereof.

[0009] Optionally, the back testing assembly and the front testing assembly are provided with at least two side by side.

[0010] Optionally, a rubber strip is further arranged between the conductive wire and the fixing frame, and the rubber strip is used for supporting the bottom surface of the conductive wire.

[0011] Optionally, the conductive wire is a strip-shaped metal wire, the bottom surface of the strip-shaped metal wire is attached to the rubber strip, and the top surface of the strip-shaped metal wire is used for contacting the surface of the battery piece.

[0012] Optionally, a wire fixing plate is arranged on two opposite sides of the fixing frame, and a lock head is locked and connected to two ends of the conductive wire, and the wire fixing plate is used for fixing the lock head.

[0013] In the second aspect, the application provides a sorting device, comprising any one of the battery piece electrical performance testing devices, and further comprising a mechanical hand arranged behind the battery piece electrical performance testing device and a plurality of storage boxes, wherein the mechanical hand is used for packaging the battery piece sent out from the battery piece electrical performance testing device into the storage box of a corresponding level according to different efficiencies.

[0014] The technical scheme provided by the utility model discloses between front testing assembly and back testing assembly set up supporting part, before testing, supporting part can support battery piece between front testing assembly and back testing assembly, do not contact with front testing assembly and back testing assembly, when testing battery piece on supporting part, front testing assembly and back testing assembly move towards each other, contact with the front surface and the back surface of battery piece simultaneously, supporting part is hidden in back testing assembly, thereby supporting battery piece by supporting part is connected to the back surface of battery piece supported by back testing assembly, simultaneously, front testing assembly and back testing assembly detect the front surface and the back surface of battery piece together, when testing battery piece, keep the position of battery piece unmoved, move towards each other by back testing assembly and front testing assembly, contact with the front surface and the back surface of battery piece simultaneously, the pressure on both sides of battery piece is small, and battery piece is not easy to be damaged. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 A structural schematic diagram of a battery piece electrical performance testing device is provided in the present application.

[0017] Figure 2 A structural schematic diagram of a front testing assembly or a back testing assembly is provided in the present application.

[0018] Figure 3 A structural schematic diagram of another battery piece electrical performance testing device is provided in the present application.

[0019] Figure 4 A front view of the front testing assembly is provided in the present application.

[0020] Figure 5 A partial enlarged schematic diagram of a clamping arm in the clamp assembly is provided in the present application.

[0021] In the drawings, the reference signs are as follows:

[0022] 100, battery piece; 1, driving mechanism; 11, first lifting driving part; 12, second lifting driving part; 13, second horizontal driving part; 2, support part; 3, front testing assembly; 4, back testing assembly; 41, fixing frame; 42, conductive wire; 43, gap; 44, adhesive tape; 45, wire fixing plate; 46, lock head; 5, testing module; 6, mechanical hand; 7, storage box. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail in combination with the drawings.

[0025] The prior art battery piece test structure usually uses a thin metal wire to lap the surface of the battery piece 100, the metal wire is pressed on a support, directly contacts the battery piece, the battery piece is clamped between the metal wires on the upper and lower clamps, the support hard presses the metal wire on the front and back of the battery piece, which can easily damage the surface of the battery piece.

[0026] To this end, the application provides a battery piece electrical performance test device, as shown in Figure 1 、 Figure 2 The device includes a driving mechanism 1, a support component 2, a front test assembly 3 and a back test assembly 4, and a test module 5 arranged above the support component 2, the support component 2 is arranged between the front test assembly 3 and the back test assembly 4 and used to support the battery piece 100, the front test assembly 3 and the back test assembly 4 are connected with the driving mechanism 1, the front test assembly 3 and the back test assembly 4 each include a fixed frame 41 and a plurality of side-by-side arranged conductive wires 42 mounted on the fixed frame 41, the driving mechanism 1 is used to drive the fixed frame 41 to make the conductive wires 42 contact the surface of the battery piece 100, the support component 2 can move the battery piece 100 from the outside of the back test assembly 4 to below it, and after the test with the front test assembly 3 and the back test assembly 4 is completed, the battery piece 100 can be removed from between them, the battery piece 100 can be quickly removed from below the front test assembly 3 to test the next group of battery pieces 100, thereby improving the efficiency of the battery piece 100 test.

[0027] In some embodiments, the back test assembly 4 is provided with a gap 43 for accommodating the support component 2, when the front test assembly 3 and the back test assembly 4 move towards each other, the support component 2 for supporting the battery piece 100 is sunk into the gap 43, so that when the back test assembly 4 contacts the front of the battery piece 100, the top of the support component 2 can be lower than the bottom of the back test assembly 4, at this time, the battery piece 100 is supported on the top of the back test assembly 4, so that the back of the battery piece 100 fully contacts the conductive wires 42 on the back test assembly 4.

[0028] In some embodiments, as shown in Figure 1As shown, the support member 2 is a conveying belt, which extends to both sides of the front testing assembly 3 for conveying the battery sheet 100 through the front testing assembly 3. The back testing assembly 4 is provided with a gap 43 for accommodating the conveying belt. When the front testing assembly 3 and the back testing assembly 4 move towards each other, the support member 2 used for supporting the battery sheet 100 is accommodated in the gap 43 of the back testing assembly 4, so that the top of the support member 2 accommodated in the gap 43 is lower than the upper surface of the back testing assembly 4, and the conductive wire 42 on the upper surface of the back testing assembly 4 contacts the back of the battery sheet 100, and the front testing assembly 3 contacts the front of the battery sheet 100. The back testing assembly 4 and the front testing assembly 3 jointly abut the battery sheet 100 to test the current output of the battery sheet 100, so as to further evaluate the efficiency and performance of the battery sheet 100. When the back testing assembly 4 and the front testing assembly 3 move away from each other, the battery sheet 100 is still supported by the conveying belt and is transmitted by the conveying belt to the rear of the front testing assembly 3.

[0029] Specifically, the driving mechanism 1 includes a first driving member, which is connected with the front testing assembly 3 and the back testing assembly 4 for driving the back testing assembly 4 and the front testing assembly 3 to move reversely.

[0030] In some embodiments, the first driving member can be a driving member connected with the front testing assembly 3 and the back testing assembly 4 reversely on a screw rod. One end of the screw rod is connected with a driving motor, and the driving motor synchronously drives the back testing assembly 4 and the front testing assembly 3 to move reversely.

[0031] In addition, the first driving member can also be a bidirectional electric cylinder connected with two different driving motors and two different screw rods, but sharing the same set of guide rails. The driving ends of the bidirectional electric cylinder are also provided with two groups, which can be connected with the back testing assembly 4 and the front testing assembly 3 respectively and drive the front testing assembly 3 and the back testing assembly 4 to move close to or away from each other.

[0032] In some embodiments, as shown in FIG. 2, the driving mechanism 1 includes a first driving member 11 and a second driving member 12. The first driving member 11 is connected with the front testing assembly 3 and the back testing assembly 4 reversely on a first screw rod 13. One end of the first screw rod 13 is connected with a first driving motor 14, and the first driving motor 14 synchronously drives the back testing assembly 4 and the front testing assembly 3 to move reversely. Figure 3As shown, the back testing assembly 4 is provided in two groups, and the two groups of back testing assembly 4 alternately carry the battery sheet 100 to be tested to pass through the bottom of the front testing assembly 3 in turn, and move towards the front testing assembly 3 in cooperation to contact the bottom of the front testing assembly 3 with the front of the battery sheet 100 placed on the back testing assembly 4. In the embodiment, the second lifting driving member 12 drivingly connected with the two groups of back testing assembly 4 respectively, and the second horizontal driving member 13 drivingly connected with the two second lifting driving members 12, the second lifting driving member 12 is used to drive the two groups of back testing assembly 4 to move towards the front testing assembly 3 in cooperation alternately, and the second horizontal driving member 13 is used to drive the two groups of back testing assembly 4 connected with the two second lifting driving members 12 respectively to carry the battery sheet 100 out from the bottom of the front testing assembly 3 after contacting the front testing assembly 3, and the two groups of back testing assembly 4 carry the battery sheet 100 out from the bottom of the front testing assembly 3 after contacting the front testing assembly 3 in turn, which improves the efficiency of the battery sheet 100 testing.

[0033] Each group of back testing assembly 4 is used to carry the battery sheet 100 tested out from the bottom of the front testing assembly 3 after contacting the front testing assembly 3 for testing.

[0034] In some embodiments, referring to Figure 3 As shown, the back testing assembly 4 and the front testing assembly 3 are provided in two groups side by side, and the two groups of back testing assembly 4 and the two groups of front testing assembly 3 are simultaneously connected to the same driving mechanism 1 to move synchronously to jointly receive and detect two or more groups of battery sheet 100, and test multiple battery sheet 100 to improve the efficiency of the battery sheet 100 testing.

[0035] In some embodiments, as Figure 4 As shown, the conductive wire 42 and the fixing frame 41 are further provided with a rubber strip 44, and the rubber strip 44 is attached to the bottom of the conductive wire 42 to support the conductive wire 42, so that the conductive wire 42 can be in flexible contact when fully attached to the battery sheet 100, and the conductive wire 42 does not damage the surface of the battery sheet 100, and the extrusion force of the conductive wire 42 on the surface of the battery sheet 100 is reduced.

[0036] Preferably, the conductive wire 42 in the embodiment is a strip-shaped metal wire, the bottom of the strip-shaped metal wire is attached to the rubber strip 44, and the top is attached to the surface of the battery sheet 100, the strip-shaped metal wire can contact with more surfaces of the battery sheet 100, so that the contact between the metal wire and the battery sheet 100 is more stable, the performance of the battery sheet 100 is not distorted, and the utilization rate of the assembly is improved.

[0037] In addition, the battery piece electric performance testing device provided by the application is preferably applicable to a battery piece without main grids. A common probe type testing device cannot correspond to the fine grid lines in the battery piece without main grids, and cannot meet the requirement of matching the current collection load. The conductive wire 42 used in the application is a strip-shaped metal wire, which can be in more sufficient contact with the fine grid on the surface of the battery piece, and improve the accuracy of the testing data of the battery piece.

[0038] In some embodiments, the fixed frame 41 is provided with a wire fixing plate 45 on both sides, and a lock head 46 is tightly connected to both ends of the conductive wire 42. The wire fixing plate 45 is used to fix the lock head 46, so as to fix both ends of the conductive wire 42. The lock head 46 can adjust the tightness of the conductive wire 42, so that the conductive wire 42 can be tightly connected by the wire fixing plate 45. One side of the wire fixing plate 45 connected to the lock head 46 is inclined outward. When the lock head 46 tightly locks the conductive wire 42, the wire fixing plate 45 can be slightly deformed, so that the bottom of the conductive wire 42 tightly contacts the fixed frame 41 for supporting the conductive wire 42, and the back of the conductive wire 42 is supported by the fixed frame 41, so that the contact between the conductive wire 42 and the battery piece 100 is more stable.

[0039] In another embodiment, the lock head 46 can also be connected to the wire fixing plate 45 through a spring. The spring can elastically tension the conductive wire 42, so that the conductive wire 42 is tightly positioned on the fixed frame 41.

[0040] In addition, referring to FIG. 1, Figure 5 The application further provides a sorting device, which comprises any one of the battery piece electric performance testing devices, and further comprises a mechanical hand 6 arranged behind the battery piece electric performance testing device and a plurality of storage boxes 7. The mechanical hand 6 is used to classify and pack the battery pieces 100 tested by the battery piece electric performance testing device into different storage boxes 7 according to different levels, so as to sort the battery pieces 100 after electric performance testing, use the battery pieces with different levels to assemble photovoltaic modules, and the storage boxes 7 further comprise a waste box for accommodating unqualified battery pieces 100.

[0041] It should be noted that, for those skilled in the art, it is obvious that the application is not limited to the details of the above-mentioned exemplary embodiments, and the application can be realized in other specific forms without departing from the spirit or basic characteristics of the application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the application, and any reference signs in the claims should not be regarded as limiting the claims.

[0042] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A device for testing the electrical performance of battery cells, characterized in that, include: The device includes a drive mechanism (1), a support component (2), a front test assembly (3), a back test assembly (4), and a test module (5) located above the support component (2). The support component (2) is located between the front test assembly (3) and the back test assembly (4) and is used to support the battery cell (100). The front test assembly (3) and the back test assembly (4) each include a fixed frame (41) connected to the drive mechanism (1) and several conductive wires (42) arranged side by side on the fixed frame (41). The drive mechanism (1) is used to drive the front test assembly (3) and the back test assembly (4) to move together toward the battery cell (100) on the support component (2) so that the conductive wires (42) are in full contact with the surface of the battery cell (100).

2. The battery cell electrical performance testing device according to claim 1, characterized in that, The back test assembly (4) has a gap (43) for accommodating the support member (2), the gap (43) causing the top surface of the support member (2) to be lower than the top surface of the back test assembly (4).

3. The battery cell electrical performance testing device according to claim 1, characterized in that, The support component (2) is a conveyor belt that extends to both sides of the front test assembly (3) to transport the battery cells (100) through the front test assembly (3) in sequence.

4. The battery cell electrical performance testing device according to claim 1, characterized in that, The driving mechanism (1) includes a first driving member, which is connected to the front test component (3) and the back test component (4) and is used to drive the front test component (3) and the back test component (4) to move closer to or further away from each other.

5. The battery cell electrical performance testing device according to claim 1, characterized in that, The back test assembly (4) is provided in two sets. The two sets of back test assemblies (4) alternately transport the battery cell (100) placed on the support member (2). The drive mechanism (1) includes a first lifting drive member (11) that is driven to lift the front test assembly (3), two second lifting drive members (12) that are driven to lift the two sets of back test assemblies (4) respectively, and a second horizontal drive member (13) that is driven to lift the two second lifting drive members (12). The second lifting drive member (12) is used to drive the two sets of back test assemblies (4) to alternately cooperate with the front test assembly (3) and move towards each other. The second horizontal drive member (13) is used to drive the two sets of back test assemblies (4) connected to the two second lifting drive members (12) respectively so that the front of the battery cell (100) contacts the front test assembly (3) and is then transported out from its lower part.

6. The battery cell electrical performance testing device according to claim 2, characterized in that, Both the back-side test component (4) and the front-side test component (3) are provided in at least two side by side.

7. The battery cell electrical performance testing device according to claim 1, characterized in that, An adhesive strip (44) is also provided between the conductive wire (42) and the fixing frame (41), and the adhesive strip (44) is used to support the bottom surface of the conductive wire (42).

8. The battery cell electrical performance testing device according to claim 7, characterized in that, The conductive wire (42) is a strip metal wire, the bottom surface of which is attached to the adhesive strip (44), and its top surface is used to contact the surface of the battery cell (100).

9. The battery cell electrical performance testing device according to claim 1, characterized in that, The fixing frame (41) has wire fixing plates (45) on both sides, and the two ends of the conductive wire (42) are locked with lock heads (46), and the lock heads (46) are elastically fixed to the wire fixing plates (45).

10. A sorting device, characterized in that, The device includes the battery cell electrical performance testing device as described in any one of claims 1-9, and further includes a robotic arm (6) and a plurality of storage boxes (7) disposed behind the battery cell electrical performance testing device. The robotic arm (6) is used to pack the battery cells (100) delivered from the battery cell electrical performance testing device into the storage boxes (7) of the corresponding level according to different efficiencies.

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