Clamping device and test equipment

Abstract

The utility model discloses a clamping device and test equipment. The clamping device comprises a box body, a first limiting assembly, a second limiting assembly and a third limiting assembly, an accommodating cavity and an opening communicated with the accommodating cavity are formed in the box body, and the accommodating cavity is used for assembling a battery cell; the first limiting assembly is connected with the box body, and the first limiting assembly is used for abutting against the battery cell in the first direction; the second limiting assembly is connected with the box body, and the second limiting assembly is used for abutting against the battery cell in the second direction; the third limiting assembly is connected with the box body, the third limiting assembly is used for abutting against the battery cell in the third direction, and the third limiting assembly is opposite to the opening; wherein the first direction, the second direction and the third direction are perpendicular to one another, so that the first limiting assembly, the second limiting assembly and the third limiting assembly respectively clamp different directions of the battery cell, the battery cell is conveniently limited in multiple different directions, and the situation that the battery cell can only be limited in one direction and cannot be limited in multiple directions is avoided; and the clamping effect of the clamping device is improved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a clamping device and testing equipment. Background Technology

[0002] With the development of technology, the tensile and torsion tests of battery cell terminals are a very important part of the battery cell manufacturing and testing process. They are mainly used to evaluate the reliability and durability of battery cell terminals in actual use, and play an important role in battery cell research and development and production, helping to improve the overall performance and safety of battery cells.

[0003] In the existing technology, the existing clamping device includes a housing and a limiting component. The housing has a receiving cavity and an opening communicating with the receiving cavity. The receiving cavity is used to assemble the battery cell. The limiting component is connected to the housing and is used to limit the front-back direction of the battery cell. However, it can only limit one direction and cannot limit multiple directions, resulting in poor clamping effect of the existing clamping device. Summary of the Invention

[0004] One object of the present invention is to provide a clamping device and module, which aims to solve the technical problem that the clamping device can only restrict one direction and cannot restrict multiple directions, resulting in poor clamping effect.

[0005] To achieve the above objectives, the present invention provides a clamping device for clamping battery cells, comprising:

[0006] The housing has a receiving cavity and an opening communicating with the receiving cavity, the receiving cavity being used to assemble battery cells;

[0007] A first limiting component is connected to the housing, and the first limiting component is used to abut against the battery cell from a first direction;

[0008] A second limiting component, connected to the housing, is used to abut the battery cell from a second direction; and

[0009] A third limiting component is connected to the housing. The third limiting component is used to abut the battery cell from a third direction upwards. The third limiting component is opposite to the opening.

[0010] The first direction, the second direction, and the third direction are perpendicular to each other.

[0011] Optionally, the first limiting component includes a first limiting rod, which passes through the housing along the first direction and is threadedly connected to the housing. The first limiting rod is used to abut against the battery cell from the first direction.

[0012] Optionally, the first limiting component further includes a first collateral member, the first limiting rod is connected to the first collateral member, the first limiting rod abuts against the battery cell through the first collateral member, the cross-sectional area of ​​the first collateral member is S1, the diameter of the first limiting rod is S2, and 5≤S1 / S2≤10.

[0013] Optionally, the first limiting component further includes a plurality of first nuts, which are threadedly connected to the first limiting rod and abut against the outer surface of the housing from the first direction.

[0014] Optionally, the first limiting component further includes a limiting block connected to the housing. The limiting block and the first limiting rod are disposed opposite to each other, and the limiting block and the first limiting rod are used to abut against the two opposite sides of the battery cell from the first direction.

[0015] Optionally, the second limiting component includes a second limiting rod and a second mortise. The second limiting rod passes through the housing along the second direction and is threadedly connected to the housing. The second limiting rod and the second mortise are connected, and the second limiting rod abuts against the battery cell through the second mortise. The cross-sectional area of ​​the second mortise is S3, and the diameter of the second limiting rod is S4, where 5≤S3 / S4≤10.

[0016] Optionally, the second limiting component further includes a plurality of second nuts, which are threadedly connected to the second limiting rod and abut against the outer surface of the housing from the second direction.

[0017] Optionally, the clamping device further includes a pad and a connector. The pad is disposed at the bottom of the housing, and the connector detachably connects the pad and the housing. The pad is used to support the battery cell from the third direction, and the pad and the side of the housing are spaced apart to form a clearance cavity.

[0018] Optionally, the third limiting component further includes a top plate and a plurality of fasteners, the fasteners being threaded through the top plate and the housing, the top plate being opposite to the opening, and the top plate being used to abut the battery cell upward from the third party.

[0019] To achieve the above objectives, the present invention provides a solution: a testing device, the testing device comprising: a tester and the clamping device, the clamping device being used to clamp the battery cell, and the tester being used to test the battery cell.

[0020] The beneficial effects of this invention are as follows:

[0021] This utility model provides a clamping device. The housing has a receiving cavity and an opening communicating with the receiving cavity, the receiving cavity being used to assemble a battery cell. A first limiting component is connected to the housing and is used to abut the battery cell from a first direction. A second limiting component is connected to the housing and is used to abut the battery cell from a second direction. A third limiting component is connected to the housing and is used to abut the battery cell from a third direction upward, the third limiting component being opposite to the opening. The first direction, the second direction, and the third direction are perpendicular to each other, so that the first limiting component, the second limiting component, and the third limiting component can clamp the battery cell in different directions respectively, thereby facilitating the restriction of the battery cell in multiple different directions, avoiding the inability to restrict in multiple directions, and improving the clamping effect of the clamping device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a tensile test of the clamping device provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the torsion test of the clamping device provided in the embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of the clamping device provided in an embodiment of the present invention;

[0026] Figure 4 This is another cross-sectional view of the clamping device provided in an embodiment of the present invention.

[0027] Explanation of icon numbers:

[0028] 100. Clamping device;

[0029] 10. Box body; 10a. Receiving cavity; 10b. Opening;

[0030] 20. First limiting component; 21. First limiting rod; 22. First collateral component; 23. First nut; 24. Limiting block;

[0031] 30. Second limiting component; 31. Second limiting rod; 32. Second collateral; 33. Second nut;

[0032] 40. Third limiting component; 41. Top plate; 42. Fastener;

[0033] 50. Spacer blocks;

[0034] 60. Connectors. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Please refer to the attached document. Figures 1-2 This application provides a clamping device 100 for clamping a battery cell to restrict multiple different orientations of the battery cell.

[0037] Please refer to the attached document. Figures 1-4 In this utility model, the clamping device 100 includes a housing 10, a first limiting component 20, a second limiting component 30, and a third limiting component 40; the housing 10 has a receiving cavity 10a and an opening 10b communicating with the receiving cavity 10a, the receiving cavity 10a being used to assemble the battery cell; the first limiting component 20 is connected to the housing 10 and is used to abut the battery cell from a first direction; the second limiting component 30 is connected to the housing 10 and is used to abut the battery cell from a second direction; the third limiting component 40... The positioning component 40 is connected to the housing 10, and the third limiting component 40 is used to hold the battery cell from the third direction upward. The third limiting component 40 is opposite to the opening 10b. The first direction, the second direction, and the third direction are perpendicular to each other, so that the first limiting component 20, the second limiting component 30, and the third limiting component 40 can clamp the battery cell in different directions respectively. This makes it easier for the battery cell to be restricted in multiple different directions, avoiding the inability to restrict only one direction and thus improving the clamping effect of the clamping device 100.

[0038] Please refer to the attached document. Figures 1-2 In this invention, the housing 10 serves as a supporting component of the clamping device 100, supporting the first limiting component 20, the second limiting component 30, and the third limiting component 40. The housing 10 has a receiving cavity 10a and an opening 10b communicating with the receiving cavity 10a. The receiving cavity 10a serves as the internal space of the housing 10, and the opening 10b is located at the top of the housing 10. The receiving cavity 10a is used to assemble the battery cell, allowing the battery cell to enter the receiving cavity 10a from top to bottom through the opening 10b, thus facilitating the housing 10's ability to accommodate the battery cell through the receiving cavity 10a.

[0039] Please refer to the attached document. Figures 1-3In this invention, the first limiting component 20 is arranged front-to-back relative to the housing 10 and is connected to the housing 10. The first limiting component 20 is used to abut against the battery cell from a first direction, which is the front-to-back direction. This allows the first limiting component 20 to clamp the battery cell in the front-to-back direction, thereby ensuring the battery cell is restricted in the front-to-back direction as it passes through the first limiting component 20, thus guaranteeing the accuracy of the battery cell's front-to-back position relative to the housing 10.

[0040] Please refer to the attached document. Figure 1 and 4 In this invention, the second limiting component 30 is arranged horizontally relative to the housing 10 and is connected to the housing 10. The second limiting component 30 is used to abut the battery cell from a second direction; the second direction is the left-right direction. This allows the second limiting component 30 to clamp the battery cell in the left-right direction, thereby ensuring the left-right position accuracy of the battery cell relative to the housing 10.

[0041] Please refer to the attached document. Figures 1-2 In this invention, the third limiting component 40 is arranged above the housing 10 and connected to the housing 10. The third limiting component 40 is used to hold the battery cell from a third direction upwards, and is opposite to the opening 10b; the third direction is the vertical direction. This allows the third limiting component 40 to hold the battery cell in the upper direction, thereby ensuring the vertical positioning accuracy of the battery cell relative to the housing 10.

[0042] The first direction, the second direction, and the third direction are perpendicular to each other, so that the first limiting component 20, the second limiting component 30, and the third limiting component 40 can clamp the battery cell in different directions respectively. This makes it easier for the battery cell to be restricted in multiple different directions, avoiding the inability to restrict only one direction and thus improving the clamping effect of the clamping device 100.

[0043] Please refer to the attached document. Figure 3 The first limiting component 20 includes a first limiting rod 21, which passes through the housing 10 in a first direction so that the first limiting rod 21 is arranged in the front-back direction relative to the housing 10. The first limiting rod 21 is threadedly connected to the housing 10 so that the first limiting rod 21 can move in the front-back direction relative to the housing 10. The first limiting rod 21 is used to abut against the battery cell from the first direction so that the first limiting rod 21 abuts against the battery cell in the front-back direction during movement, thereby facilitating the first limiting rod 21 to abut against battery cells of different lengths and improving the versatility of the clamping device 100.

[0044] Please refer to the attached document. Figure 3The first limiting component 20 further includes a first mortise member 22, which is disposed at the end of the first limiting rod 21 facing the battery cell. The first limiting rod 21 and the first mortise member 22 are connected. This allows the first mortise member 22 to be fixed to the first limiting rod 21, thus facilitating its movement as the first limiting rod 21 moves. The first limiting rod 21 abuts against the battery cell via the first mortise member 22. The cross-sectional area of ​​the first mortise member 22 is S1, and the diameter of the first limiting rod 21 is S2, where 5 ≤ S1 / S2 ≤ 10. This ensures that the abutment area of ​​the first mortise member 22 relative to the battery cell is greater than the abutment area of ​​the first limiting rod 21 relative to the battery cell, guaranteeing the abutment effect of the first limiting component 20 relative to the battery cell and preventing the first limiting rod 21 from causing surface deformation of the battery cell.

[0045] Please refer to the attached document. Figure 3 The first limiting assembly 20 includes a plurality of first nuts 23, which are threadedly connected to the first limiting rod 21 so that the first nuts 23 can connect to or disengage from the first limiting rod 21 and abut against the outer surface of the housing 10 from a first direction. When the abutment position of the first limiting rod 21 relative to the battery cell is determined, the first nuts 23 restrict the position of the first limiting rod 21 relative to the battery cell, preventing the first limiting rod 21 from moving relative to the battery cell, thereby locking the first limiting rod 21. When the position of the first limiting rod 21 relative to the battery cell is adjusted, the first nuts 23 disengage from the first limiting rod 21 in the direction away from the housing 10, so that the first nuts 23 are released relative to the housing 10, thereby facilitating the movement of the first limiting rod 21 relative to the housing 10.

[0046] Please refer to the attached document. Figure 3 The first limiting component 20 also includes a limiting block 24, which is connected to the housing 10. The limiting block 24 and the first limiting rod 21 are arranged opposite to each other, so that the limiting block 24 is fixed to the side of the housing 10 facing away from the first limiting rod 21. The limiting block 24 and the first limiting rod 21 are used to abut against the two opposite sides of the battery cell from a first direction, so that the limiting block 24 and the first limiting rod 21 abut against the front and rear directions of the battery cell respectively, thereby making it easier for the limiting block 24 and the first limiting rod 21 to restrict the front and rear directions of the battery cell and prevent the battery cell from shifting in the front and rear directions. By arranging the limiting block 24, the use of the first limiting rod 21 is reduced, and only one side of the first limiting rod 21 needs to be rotated. In addition, the limiting block 24 can prevent the entire surface of the battery cell that is not flat from contacting the housing 10, so that there is a gap between the entire surface of the battery cell that is not flat and the housing 10, ensuring the clamping stability of the first limiting component 20 relative to the front and rear directions of the battery cell.

[0047] Please refer to the attached document. Figure 4The second limiting assembly 30 includes a second limiting rod 31 and a second mortise member 32. The second limiting rod 31 passes through the housing 10 in a second direction, so that the second limiting rod 31 is arranged in a left-right direction relative to the housing 10. The second limiting rod 31 is threadedly connected to the housing 10, so that the second limiting rod 31 can move in a left-right direction relative to the housing 10. The second limiting rod 31 and the second mortise member 32 are connected, so that the second mortise member 32 is fixed to the second limiting rod 31, thereby facilitating the movement of the second mortise member 32 as the second limiting rod 31 moves. The second limiting rod 31 abuts against the battery cell through the second mortise member 32. The cross-sectional area of ​​the second mortise member 32 is S3, and the diameter of the second limiting rod 31 is S4, where 5≤S3 / S4≤10. This ensures that the area of ​​the second mortise member 32 against the battery cell is greater than the area of ​​the second limit rod 31 against the battery cell, thus guaranteeing the holding effect of the second limit component 30 against the battery cell and preventing the second limit rod 31 from causing surface deformation of the battery cell.

[0048] Please refer to the attached document. Figure 4 The second limiting component 30 includes a plurality of second nuts 33, which are threadedly connected to the second limiting rod 31 so that the second nuts 33 can connect to or disengage from the second limiting rod 31 and abut against the outer surface of the housing 10 from a second direction. When the abutment position of the second limiting rod 31 relative to the battery cell is determined, the second nuts 33 restrict the position of the second limiting rod 31 relative to the battery cell, preventing the second limiting rod 31 from moving relative to the battery cell, thereby locking the second limiting rod 31. When the position of the second limiting rod 31 relative to the battery cell is adjusted, the second nuts 33 disengage from the second limiting rod 31 in the direction away from the housing 10, so that the second nuts 33 are released relative to the housing 10, thereby facilitating the movement of the second limiting rod 31 relative to the housing 10.

[0049] Please refer to the attached document. Figure 4 The clamping device 100 has two second limiting components 30, which are respectively arranged relative to the left and right sides of the battery cell. These second limiting components 30 abut against the left and right sides of the battery cell, thereby restricting the left-right direction of the battery cell and preventing it from shifting in that direction. By adjusting the distance between the two second limiting components 30, the clamping device 100 can abut battery cells of different widths, improving its versatility.

[0050] Please refer to the attached document. Figures 3-4The clamping device 100 also includes a pad 50 and a connector 60. The pad 50 is disposed at the bottom of the housing 10, and the connector 60 detachably connects the pad 50 and the housing 10, allowing the pad 50 to be connected to or detached from the housing 10, thus improving the ease of replacement of the pad 50 and facilitating the adaptation of the battery cell to different heights. The pad 50 is used to support the battery cell from a third-party direction, so that the pad 50 restricts the lower position of the battery cell and prevents the battery cell from shifting downwards. The pad 50 increases the distance between the battery cell and the bottom of the housing 10. The surface area of ​​the pad 50 is smaller than the bottom area of ​​the housing 10, and the pad 50 and the side of the housing 10 are spaced apart to form a clearance cavity, avoiding contact between the connecting piece on the electrode post and the housing 10. Optionally, the connector 60 is a bolt or screw.

[0051] Please refer to the attached document. Figures 1-4 The third limiting assembly 40 also includes a top plate 41 and multiple fasteners 42. The fasteners 42 are threaded through the top plate 41 and the housing 10, allowing the top plate 41 to be detachably connected to the housing 10 via the multiple fasteners 42. The top plate 41 is opposite to the opening 10b and is used to hold the battery cell from a third direction upward, thereby limiting the vertical direction of the battery cell and preventing it from shifting in that direction. By adjusting the multiple fasteners 42, the top plate 41 can be raised or lowered relative to the housing 10, allowing for adjustment of the position of the top plate 41 relative to the housing 10. This facilitates the holding of battery cells at different heights by the top plate 41, improving the versatility of the clamping device 100.

[0052] Please refer to the attached document. Figures 1-2 In another embodiment, a testing device is provided, which includes a tester and a clamping device 100. The clamping device 100 is used to clamp the battery cell so that the clamping device 100 restricts the battery cell in multiple directions and ensures the stability of the battery cell. The tester is used to test the battery cell so that the tester can perform tensile tests and torsion tests on the battery cell. Optionally, the tester is a tensile tester or a torsion tester.

[0053] The beneficial effects of this invention are as follows:

[0054] This utility model provides a clamping device 100. A housing 10 has a receiving cavity 10a and an opening 10b communicating with the receiving cavity 10a. The receiving cavity 10a is used to assemble a battery cell. A first limiting component 20 is connected to the housing 10 and is used to abut the battery cell from a first direction. A second limiting component 30 is connected to the housing 10 and is used to abut the battery cell from a second direction. A third limiting component 40 is connected to the housing 10 and is used to abut the battery cell from a third direction, opposite to the opening 10b. The first, second, and third directions are perpendicular to each other, allowing the first limiting component 20, the second limiting component 30, and the third limiting component 40 to clamp the battery cell in different directions respectively. This facilitates the restriction of the battery cell in multiple different directions, avoiding the limitation of only one direction and improving the clamping effect of the clamping device 100.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0057] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A clamping device for clamping a battery cell, characterized in that, include: The housing has a receiving cavity and an opening communicating with the receiving cavity, the receiving cavity being used to assemble battery cells; A first limiting component is connected to the housing, and the first limiting component is used to abut against the battery cell from a first direction; A second limiting component is connected to the housing, and the second limiting component is used to abut against the battery cell from a second direction; as well as A third limiting component is connected to the housing. The third limiting component is used to abut the battery cell from a third direction upwards. The third limiting component is opposite to the opening. The first direction, the second direction, and the third direction are perpendicular to each other.

2. The clamping device according to claim 1, characterized in that, The first limiting component includes a first limiting rod, which passes through the housing along the first direction and is threadedly connected to the housing. The first limiting rod is used to abut against the battery cell from the first direction.

3. The clamping device according to claim 2, characterized in that, The first limiting component further includes a first collateral member, the first limiting rod is connected to the first collateral member, the first limiting rod abuts against the battery cell through the first collateral member, the cross-sectional area of ​​the first collateral member is S1, the diameter of the first limiting rod is S2, and 5≤S1 / S2≤10.

4. The clamping device according to claim 2, characterized in that, The first limiting component further includes a plurality of first nuts, which are threadedly connected to the first limiting rod and abut against the outer surface of the housing from the first direction.

5. The clamping device according to claim 2, characterized in that, The first limiting component further includes a limiting block, which is connected to the housing. The limiting block and the first limiting rod are disposed opposite to each other, and the limiting block and the first limiting rod are used to abut against the two opposite sides of the battery cell from the first direction.

6. The clamping device according to any one of claims 1 to 5, characterized in that, The second limiting component includes a second limiting rod and a second mortise. The second limiting rod passes through the housing along the second direction and is threadedly connected to the housing. The second limiting rod and the second mortise are connected, and the second limiting rod abuts against the battery cell through the second mortise. The cross-sectional area of ​​the second mortise is S3, and the diameter of the second limiting rod is S4, where 5≤S3 / S4≤10.

7. The clamping device according to claim 6, characterized in that, The second limiting component also includes a plurality of second nuts, which are threadedly connected to the second limiting rod and abut against the outer surface of the housing from the second direction.

8. The clamping device according to any one of claims 1 to 5, characterized in that, The clamping device further includes a pad and a connector. The pad is disposed at the bottom of the housing, and the connector detachably connects the pad and the housing. The pad is used to support the battery cell from the third direction, and the pad and the side of the housing are spaced apart to form a clearance cavity.

9. The clamping device according to any one of claims 1 to 5, characterized in that, The third limiting component also includes a top plate and a plurality of fasteners, the fasteners being threaded through the top plate and the housing, the top plate being opposite to the opening, and the top plate being used to abut the battery cell upward from the third party.

10. A testing device, characterized in that, The testing equipment includes: a tester and a clamping device as described in any one of claims 1 to 9, the clamping device being used to clamp the battery cell, and the tester being used to test the battery cell.

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