A power battery voltage testing device

Abstract

The present application relates to power battery voltage test equipment technical field, especially to a kind of power battery voltage testing device, it is characterized in that, including workbench, support seat, several assembly clamping units, drive assembly and test component, support seat is fixed in the upper end of workbench, with the positioning end surface for power battery positioning reference, several assembly clamping units, clamping unit has the clamping seat fixed on the positioning end surface, clamping groove is opened in clamping seat, clamping end is installed on clamping seat, drive assembly is fixedly connected with support seat, drive assembly has the drive end that can be moved along the direction of clamping groove opening, clamping end is all provided with elastic piece, elastic piece is movably connected with drive end.The present application is movably connected with the elastic piece of drive end, so that clamping end can provide a flexible, self-adapting clamping force when clamping battery, effectively prevent battery shell from being deformed or damaged due to excessive clamping force.

Description

Technical Field

[0001] This invention relates to the field of power battery voltage testing equipment technology, and more particularly to a power battery voltage testing device. Background Technology

[0002] With the rapid development of new energy vehicles and the energy storage industry, the demand for recycled power batteries is increasing, and the requirements for their performance and safety are also becoming more stringent. Voltage is one of the key parameters for measuring the state of power batteries, and voltage testing is an indispensable part of the battery recycling process.

[0003] Currently, in the voltage testing process of power batteries, the battery clamping mechanism is mostly rigid clamping, which can easily damage the battery casing due to excessive clamping force. This is especially true for aluminum-cased or pouch batteries, where excessive clamping force may cause casing deformation or even internal short circuits, affecting production safety. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a power battery voltage testing device to solve the problem that most battery clamping mechanisms are rigid clamps, which are prone to damaging the battery casing due to excessive clamping force. Excessive clamping force may cause casing deformation or even cause internal short circuits in the battery.

[0005] To achieve the above objectives, the present invention provides a power battery voltage testing device, comprising: a worktable; a support base fixed to the upper end of the worktable, having a positioning end face for positioning a power battery reference; a plurality of assembly clamping units, each clamping unit having a clamping seat fixed to the positioning end face, the clamping seat having a clamping groove with an opening, and a clamping end slidably mounted on the clamping seat along the length direction of the worktable, the clamping end being movable toward or away from the opening of the clamping groove; a drive assembly fixedly connected to the support base, the drive assembly having a drive end capable of moving along the direction of the clamping groove opening, each clamping end being provided with an elastic element, the elastic element being movably connected to the drive end so that the clamping end can reciprocate elastically in its moving direction; and a testing assembly fixed to the upper end of the worktable, having a testing frame capable of moving vertically, the lower end of the testing frame having a plurality of testing units corresponding to the clamping units, each testing unit having a testing end for contacting the power battery electrodes.

[0006] In an optional example, the clamping groove extends vertically through the clamping seat, and an elastic clamping member is fixed inside the clamping groove. Two sets of parallel guide rods are fixed to one end of the clamping seat facing the opening of the clamping groove. A clamping block is slidably installed on the outer wall of the guide rod. An elastic clamping member is fixed to one end of the clamping block facing the direction of the clamping seat, and the clamping end is located at the end of the elastic clamping member two facing the direction of the clamping seat.

[0007] In an optional example, the drive assembly includes a drive telescopic cylinder fixedly connected to a support base. A drive frame is slidably mounted on the lower end of the support base. A connecting rod is fixed on the clamping block, and the lower part of the connecting rod passes downward through the support base and is slidably connected to the drive frame.

[0008] In an optional example, the drive frame is provided with a sliding groove, and the lower part of the connecting rod is slidably installed in the sliding groove. A guide post is provided in the sliding groove, and the elastic element is fitted on the outer wall of the guide post. One end of the elastic element abuts against the connecting rod, and the other end of the elastic element abuts against the sliding groove, so that the connecting rod moves toward the direction close to the opening of the clamping groove.

[0009] In an optional example, the lower end of the support is fixed with a guide rail that is arranged along the length of the workbench, and a sliding block is slidably fitted on the outer wall of the guide rail, the sliding block being fixedly connected to the drive frame.

[0010] In an optional example, the drive frame includes a frame body with support portions on both sides. The sliding groove is formed at one end of the support portion facing the direction close to the opening of the clamping groove. A sealing plate is fixed on the support portion, and the sealing plate is used to seal the sliding groove.

[0011] In an optional example, the bottom of the sliding groove has a through hole, the sealing plate has a threaded hole that penetrates the sealing plate, the guide post passes through the through hole and is inserted into the threaded hole by means of a threaded connection.

[0012] In one alternative example, the upper end of the support base has a vertical through slot extending through the support base, and the lower part of the connecting rod passes downward through the vertical through slot to connect with the drive frame.

[0013] In an optional example, the test assembly includes a test support frame fixed to the upper end of the workbench, a test telescopic cylinder fixed on the test support frame, and the telescopic end of the test telescopic cylinder being fixedly connected to the test frame.

[0014] In one optional example, a test guide rod is fixed on the test frame and arranged vertically, and a test guide ring is fixed on the test support frame, with the test guide rod being slidably inserted into the test guide ring.

[0015] The beneficial effects of this invention are as follows: by setting an elastic element that is movably connected to the drive end, the clamping end can provide a flexible and adaptive clamping force when clamping the battery, effectively preventing deformation or damage to the battery casing due to excessive clamping force. It can automatically compensate for the small dimensional tolerances of the battery itself, ensuring that batteries from different batches can be clamped stably and reliably. Furthermore, the clamping unit is installed with the positioning end face of the support base as a reference, ensuring the high consistency of the position of multiple batteries during testing. Combined with the vertical movement of the test components and the precisely aligned test unit, it can ensure that the test probe contacts the battery electrode with the same position and pressure every time, significantly improving the accuracy and consistency of voltage testing. At the same time, by integrating multiple clamping units and corresponding test units on the workbench, it realizes the synchronous clamping and synchronous testing of multiple batteries, improving the testing efficiency and capacity of the production line. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this 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 for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of an embodiment of the present invention. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the clamping unit in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the driving component in an embodiment of the present invention; Figure 5 This is an exploded view of the driving component in an embodiment of the present invention; Figure 6 This is a diagram showing the usage state of the present invention.

[0018] The following are labeled in the diagram: 1. Workbench; 2. Support base; 21. Positioning end face; 22. Guide rail; 23. Sliding block; 24. Vertical through groove; 3. Clamping unit; 301. Clamping end; 31. Clamping base; 311. Clamping groove; 32. Elastic clamping component one; 33. Guide rod; 34. Clamping block; 35. Elastic clamping component two; 4. Drive assembly; 41. Drive end; 42. Elastic component; 43. Drive telescopic cylinder; 44. Drive frame; 441. Sliding groove; 442. Frame body; 443. Support part; 444. Through hole; 45. Connecting rod; 46. Guide post; 47. Sealing plate; 471. Threaded hole; 5. Test assembly; 51. Test frame; 52. Test unit; 521. Test end; 53. Test support frame; 54. Test telescopic cylinder; 55. Test guide rod; 56. Test guide ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] In one embodiment, please refer to Figures 1 to 3 As shown, the present invention provides a power battery voltage testing device, including a workbench 1, a support base 2, several assembly clamping units 3, a drive component 4, and a testing component 5.

[0022] Workbench 1 serves as the base for installation.

[0023] The support base 2 is fixed to the upper end of the workbench 1 by bolt connection, and has a positioning end face 21 for positioning reference of the power battery to ensure the horizontal position accuracy of the power battery.

[0024] Several assembly clamping units 3, each assembly clamping unit 3 has a clamping seat 31 fixed on the positioning end face 21, the clamping seat 31 has a clamping groove 311 with an opening, and a clamping end 301 is slidably installed on the clamping seat 31 along the length direction of the worktable 1. The clamping end 301 can move toward or away from the opening of the clamping groove 311 to clamp or release the battery located in the clamping groove 311.

[0025] The drive assembly 4 is fixedly connected to the support base 2. The drive assembly 4 has a drive end 41 that can move along the opening of the clamping groove 311. Each clamping end 301 is provided with an elastic element 42, which is movably connected to the drive end 41 so that the clamping end 301 can reciprocate elastically in its moving direction. The elastic element 42 can be a spring. During clamping, the thrust is transmitted through the elastic element 42, which is not a rigid contact, thus playing a buffering and protective role, avoiding damage to the battery casing due to excessive clamping force. At the same time, it can adapt to power batteries of different sizes, ensuring that the power battery can be stably clamped.

[0026] The test assembly 5 is fixed to the upper end of the workbench 1 and has a test frame 51 that can move vertically. Several test units 52 corresponding to the clamping unit 3 are fixed to the lower end of the test frame 51. The test unit 52 has a test end 521 for contacting the power battery electrode.

[0027] Initially, the test frame 51 is in a high position, with the clamping end 301 away from the opening of the clamping slot 311. An operator or automated robotic arm places the power battery to be tested into the clamping slot 311. Then, the drive assembly 4 is activated, and its drive end 41 extends, pushing the clamping end 301 towards the opening of the clamping slot 311 via the elastic element 42. When the clamping end 301 contacts the side of the battery, the elastic element 42 is compressed, providing a continuous, flexible clamping force to secure the battery in the clamping slot 311. Next, the test assembly 5 actuates, driving the test frame 51 to descend, allowing the test end 521 of the test unit 52 to precisely contact the positive and negative electrodes of the battery. The tester reads the battery voltage data through the test end 521. After the test is completed, the test frame 51 rises, the test end 521 disengages from the electrodes, the drive end 41 of the drive assembly 4 retracts, the clamping end 301 retracts, the battery is released, and finally, the battery is removed.

[0028] Specifically, this example uses an elastic element 42 that is movably connected to the drive end 41, so that the clamping end 301 can provide a flexible and adaptive clamping force when clamping the battery. This effectively prevents the battery casing from deforming or being damaged due to excessive clamping force, automatically compensates for the small dimensional tolerances of the battery itself, and ensures that batteries from different batches can be clamped stably and reliably. Furthermore, the clamping unit is installed with the positioning end face 21 of the support base 2 as a reference, ensuring the high consistency of the position of multiple batteries during testing. Combined with the vertical movement of the test component 5 and the precisely aligned test unit 52, it can be ensured that the test probe contacts the battery electrode with the same position and pressure every time, which significantly improves the accuracy of voltage testing and the consistency of data. At the same time, by integrating multiple clamping units 3 and corresponding test units 52 on the workbench 1, the synchronous clamping and synchronous testing of multiple batteries is realized, improving the testing efficiency and capacity of the production line.

[0029] In an optional example, please refer to Figures 1 to 3 As shown, a clamping groove 311 extends vertically through a clamping seat 31. An elastic clamping member 32 is fixed within the clamping groove 311. Two sets of parallel guide rods 33 are fixed to one end of the clamping seat 31 facing the opening of the clamping groove 311. A clamping block 34 is slidably mounted on the outer wall of the guide rod 33. An elastic clamping member 35 is fixed to one end of the clamping block 34 facing the direction near the clamping seat 31. A clamping end 301 is located at the end of the elastic clamping member 35 facing the direction near the clamping seat 31. The guide rods 33 are connected to the clamping seat 31 by bolts. Both the elastic clamping member 32 and the elastic clamping member 35 can be made of rubber.

[0030] Specifically, in this example, the power battery is clamped by the cooperation of the first elastic clamp 32 and the second elastic clamp 35, which effectively reduces the pressure on the power battery and further protects the power battery.

[0031] In an optional example, please refer to Figures 1 to 4 As shown, the drive assembly 4 includes a drive telescopic cylinder 43, which is fixedly connected to the support base 2 by bolts. A drive frame 44 is slidably mounted on the lower end of the support base 2. A connecting rod 45 is fixed to the clamping block 34 by bolts, with the lower part of the connecting rod 45 passing downwards through the support base 2 and slidably connected to the drive frame 44. The clamping block 34 has a sliding hole that matches the guide rod 33.

[0032] Specifically, this example ensures the stability of the movement of the clamping end 301 through the guiding structure of the guide rod 33, the clamping block 34, the drive frame 44 and the connecting rod 45, and the structure is compact and easy to maintain.

[0033] In an optional example, please refer to Figures 1 to 6 As shown, a sliding groove 441 is provided on the drive frame 44. The lower part of the connecting rod 45 is slidably installed in the sliding groove 441. A guide post 46 is provided in the sliding groove 441. An elastic element 42 is fitted on the outer wall of the guide post 46. One end of the elastic element 42 abuts against the connecting rod 45, and the other end of the elastic element 42 abuts against the sliding groove 441, so that the connecting rod 45 moves toward the direction close to the opening of the clamping groove 311.

[0034] Specifically, this example provides a sliding groove 441, a guide post 46, and an elastic element 42 on the drive frame 44, so that the connecting rod 45 and the drive frame 44 form an elastic connection. When clamping the battery, the clamping end 301 can provide a flexible and adaptive clamping force, which prevents the battery shell from deforming or being damaged due to excessive clamping force. It can automatically compensate for the small dimensional tolerances of the battery itself, ensuring that batteries from different batches can be clamped stably and reliably.

[0035] In an optional example, please refer to Figures 1 to 6 As shown, the lower end of the support base 2 is fixed with a guide rail 22 that is set along the length of the workbench 1 by bolt connection. A sliding block 23 is slidably fitted on the outer wall of the guide rail 22. The sliding block 23 is fixedly connected to the drive frame 44 by bolt connection.

[0036] Specifically, in this example, the cooperation between the guide rail 22 and the sliding block 23 further ensures the stability of the movement of the clamping end 301.

[0037] In an optional example, please refer to Figures 1 to 6 As shown, the drive frame 44 includes a frame body 442, and support parts 443 are provided on both sides of the frame body 442. A sliding groove 441 is opened at one end of the support part 443 facing the direction close to the opening of the clamping groove 311. A sealing plate 47 is fixed on the support part 443 by bolt connection. The sealing plate 47 is used to seal the sliding groove 441.

[0038] Specifically, this example disassembles the drive frame 44 into a frame body 442 and a sealing plate 47 structure, which reduces the manufacturing difficulty and cost of the drive frame 44 and facilitates the disassembly, assembly and maintenance of the drive frame 44.

[0039] In an optional example, please refer to Figures 1 to 6 As shown, the bottom of the sliding groove 441 has a through hole 444, and the sealing plate 47 has a threaded hole 471 that passes through the sealing plate 47. The guide post 46 passes through the through hole 444 and is inserted into the threaded hole 471 by means of threaded connection, which facilitates the disassembly and maintenance of the guide post 46 and reduces the assembly difficulty of the drive frame 44.

[0040] In an optional example, please refer to Figures 1 to 6As shown, the upper end of the support base 2 is provided with a vertical through slot 24 that passes through the support base 2, and the lower part of the connecting rod 45 passes downward through the vertical through slot 24 and is connected to the drive frame 44.

[0041] Specifically, the vertical through slot 24 on the support 2 in this example provides good motion guidance for the connecting rod 45 and avoids motion interference.

[0042] In an optional example, please refer to Figures 1 to 6 As shown, the test assembly 5 includes a test support frame 53 fixed to the upper end of the workbench 1 by bolt connection. A test telescopic cylinder 54 is fixed to the test support frame 53 by bolt connection. The telescopic end of the test telescopic cylinder 54 is fixedly connected to the test frame 51 by bolt connection.

[0043] Specifically, this example demonstrates how the telescopic cylinder 54 drives the test frame 51 to move vertically, ensuring that the test end 521 can stably contact the electrodes of the power battery, thus guaranteeing the accuracy of the power battery voltage test.

[0044] In an optional example, please refer to Figures 1 to 6 As shown, a test guide rod 55 is fixed on the test frame 51 by bolts, and a test guide ring 56 is fixed on the test support frame 53 by bolts. The test guide rod 55 is slidably inserted into the test guide ring 56, which facilitates the disassembly and maintenance of the test component 5.

[0045] In summary, this example, by setting a sliding groove 441, a guide post 46, and an elastic element 42 on the drive frame 44, forms an elastic connection between the connecting rod 45 and the drive frame 44. The clamping end 301 provides a flexible and adaptive clamping force when clamping the battery, preventing deformation or damage to the battery casing due to excessive clamping force. It can automatically compensate for the small dimensional tolerances of the battery itself, ensuring that batteries from different batches can be clamped stably and reliably. Furthermore, the clamping unit is installed with the positioning end face 21 of the support base 2 as a reference, ensuring the high consistency of the position of multiple batteries during testing. Combined with the vertical movement of the test assembly 5 and the precisely aligned test unit 52, it can ensure that the test probe contacts the battery electrode with the same position and pressure every time, significantly improving the accuracy and consistency of voltage testing. At the same time, by integrating multiple clamping units 3 and corresponding test units 52 on the workbench 1, synchronous clamping and testing of multiple batteries are achieved, improving the testing efficiency and capacity of the production line.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0047] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A power battery voltage testing device, characterized in that, include: Workbench (1); The support base (2) is fixed to the upper end of the workbench (1) and has a positioning end face (21) for positioning reference of the power battery. A plurality of assembly clamping units (3) are provided, wherein each clamping unit (3) has a clamping seat (31) fixed on a positioning end face (21), the clamping seat (31) has a clamping groove (311) with an opening, and a clamping end (301) is slidably mounted on the clamping seat (31) along the length direction of the worktable (1), and the clamping end (301) can move toward or away from the opening of the clamping groove (311); The drive assembly (4) is fixedly connected to the support base (2). The drive assembly (4) has a drive end (41) that can move along the direction of the opening of the clamping groove (311). Each clamping end (301) is provided with an elastic element (42). The elastic element (42) is movably connected to the drive end (41) so that the clamping end (301) can reciprocate elastically in its moving direction. The test assembly (5) is fixed to the upper end of the workbench (1) and has a test frame (51) that can move vertically. The lower end of the test frame (51) is fixed with a plurality of test units (52) corresponding to the clamping unit (3). The test unit (52) has a test end (521) for contacting the power battery electrode.

2. The power battery voltage testing device according to claim 1, characterized in that, The clamping groove (311) extends vertically through the clamping seat (31). An elastic clamping member (32) is fixed inside the clamping groove (311). Two sets of parallel guide rods (33) are fixed at one end of the clamping seat (31) facing the opening of the clamping groove (311). A clamping block (34) is slidably installed on the outer wall of the guide rod (33). An elastic clamping member (35) is fixed at one end of the clamping block (34) facing the direction of the clamping seat (31). The clamping end (301) is located at one end of the elastic clamping member (35) facing the direction of the clamping seat (31).

3. The power battery voltage testing device according to claim 2, characterized in that, The drive assembly (4) includes a drive telescopic cylinder (43), which is fixedly connected to the support base (2). The lower end of the support base (2) is slidably mounted with a drive frame (44). A connecting rod (45) is fixed on the clamping block (34). The lower part of the connecting rod (45) passes downward through the support base (2) and is slidably connected to the drive frame (44).

4. The power battery voltage testing device according to claim 3, characterized in that, The drive frame (44) has a sliding groove (441). The lower part of the connecting rod (45) is slidably installed in the sliding groove (441). A guide post (46) is provided in the sliding groove (441). The elastic element (42) is fitted on the outer wall of the guide post (46). One end of the elastic element (42) abuts against the connecting rod (45), and the other end of the elastic element (42) abuts against the sliding groove (441), so that the connecting rod (45) moves toward the direction close to the opening of the clamping groove (311).

5. The power battery voltage testing device according to claim 4, characterized in that, The lower end of the support base (2) is fixed with a guide rail (22) arranged along the length of the workbench (1). A sliding block (23) is slidably fitted on the outer wall of the guide rail (22). The sliding block (23) is fixedly connected to the drive frame (44).

6. The power battery voltage testing device according to claim 5, characterized in that, The drive frame (44) includes a frame (442), and support portions (443) are provided on both sides of the frame (442). The sliding groove (441) is opened at one end of the support portion (443) facing the opening of the clamping groove (311). A sealing plate (47) is fixed on the support portion (443), and the sealing plate (47) is used to seal the sliding groove (441).

7. The power battery voltage testing device according to claim 6, characterized in that, The bottom of the sliding groove (441) is provided with a through hole (444), and the sealing plate (47) is provided with a threaded hole (471) that penetrates the sealing plate (47). The guide post (46) passes through the through hole (444) and is inserted into the threaded hole (471) by means of threaded connection.

8. The power battery voltage testing device according to claim 7, characterized in that, The upper end of the support base (2) is provided with a vertical through groove (24) that passes through the support base (2), and the lower part of the connecting rod (45) passes downward through the vertical through groove (24) and is connected to the drive frame (44).

9. The power battery voltage testing device according to claim 1, characterized in that, The test assembly (5) includes a test support frame (53) fixed to the upper end of the workbench (1), and a test telescopic cylinder (54) is fixed on the test support frame (53). The telescopic end of the test telescopic cylinder (54) is fixedly connected to the test frame (51).

10. The power battery voltage testing device according to claim 9, characterized in that, The test frame (51) is fixed with a test guide rod (55) arranged vertically, and the test support frame (53) is fixed with a test guide ring (56). The test guide rod (55) is inserted into the test guide ring (56) by sliding.

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