A battery pack DCR testing fixture

Abstract

This utility model relates to the field of battery testing technology and discloses a battery pack DCR testing fixture, including a support plate, a fixing mechanism disposed at the center of the inner side of the support plate; the fixing mechanism is fixed to a base plate at the center of the inner side of the support plate, a hydraulic cylinder is fixed to the bottom side of the base plate, a hydraulic rod is slidably installed inside the hydraulic cylinder, the top of the hydraulic rod passes through the base plate and is fixed to a lifting platform, a fixing groove is evenly opened on the top side of the lifting platform, a suction cup is fixed inside the fixing groove, a sliding groove is evenly opened on the inner side of the lifting platform, a piston is slidably installed inside the sliding groove, a round rod is fixed to the bottom side of the piston, the bottom end of the round rod passes through the lifting platform and is fixedly connected to the base plate. Through the structure of the fixing mechanism, this utility model allows the battery pack to be adsorbed and fixed by the piston and suction cup as the lifting platform moves to the testing position. After the testing and reset are completed, the fixing of the battery pack is released, thereby quickly replacing the battery pack to be tested and improving the testing efficiency of the battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically a battery pack DCR testing fixture. Background Technology

[0002] Battery pack DCR testing is the process of measuring the DC resistance of a battery. It reflects the battery's internal conductivity and loss status. The test results are used to assess the battery's health and performance, thereby promptly detecting problems such as battery aging, damage, or over-discharge.

[0003] A battery pack DCR testing fixture, with announcement number CN221326723U, is based on a base plate. A mounting base is fixed to the top side of the base plate, and a gear rod is rotatably connected to the top side of the mounting base. A servo motor is installed at the bottom end of the gear rod, and a fixed round rod is connected to the inner side of the mounting base. Through the synchronous movement of two racks, a first U-shaped placement plate and a second U-shaped placement plate can be driven to clamp and fix battery packs of different specifications. Then, with the cooperation of a telescopic top seat, it is positioned to the top side of the battery pack to perform DCR testing on the battery pack, thereby improving the efficiency of battery pack DCR testing.

[0004] The battery pack DCR testing fixture described above still has problems. During the use of this testing fixture, after the battery pack is clamped and fixed by the first U-shaped placement plate and the second U-shaped placement plate on both sides, the testing is carried out. The placement plates need to be moved frequently before and after the testing to replace the battery pack, which is cumbersome and reduces the testing efficiency of the battery pack. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem that during the use of the testing fixture, after the battery pack is clamped and fixed by the first U-shaped placement plate and the second U-shaped placement plate on both sides before testing, the placement plates need to be moved frequently before and after testing to replace the battery pack, which is cumbersome and reduces the testing efficiency of the battery pack.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A battery pack DCR testing fixture, comprising: A support plate, wherein a fixing mechanism is provided at the center of the inner side of the support plate, a conveying mechanism is provided on the inner side of the support plate, and a limiting mechanism is provided at one end of the inner side of the support plate; The fixing mechanism is fixed to the base plate at the center of the inner side of the support plate. A hydraulic cylinder is fixed to the bottom side of the base plate. A hydraulic rod is slidably installed inside the hydraulic cylinder. A lifting platform is fixed to the top of the hydraulic rod through the base plate. Fixed grooves are evenly opened on the top side of the lifting platform. A suction cup is fixed inside the fixed groove. Sliding grooves are evenly opened on the inner side of the lifting platform. A piston is slidably installed inside the sliding groove. A round rod is fixed to the bottom side of the piston. The bottom end of the round rod passes through the lifting platform and is fixedly connected to the base plate.

[0008] As a further embodiment of this utility model: the hydraulic rod is slidably connected to the base plate, the round rod is slidably connected to the lifting platform, and the bottom end of the suction cup passes through the lifting platform and communicates with the inner side of the slide groove.

[0009] As a further embodiment of this utility model: a fixing plate is fixed to the top side of the support plate, a top plate is fixed to the top side of the fixing plate, and the DCR detection equipment body is fixedly installed at the center of the inner side of the top plate.

[0010] As a further embodiment of this utility model: the conveying mechanism includes a drive roller fixed to one end of the inner side of the support plate, a transmission roller rotatably mounted near the middle position of the inner side of the support plate, and a conveyor belt fitted onto the drive roller and the transmission roller.

[0011] As a further embodiment of this utility model: a driven roller is rotatably mounted on the inner side of the support plate away from the drive roller, and an auxiliary roller is rotatably mounted on the inner side of the support plate near the middle position. A conveyor belt is fitted onto the auxiliary roller and the driven roller.

[0012] As a further embodiment of this utility model: one end of the auxiliary roller and the transmission roller passes through the support plate and is fixed with a pulley, and belts are fitted on the pulleys on both sides. A servo motor is fixed to one end of the side of the support plate, and the output end of the servo motor passes through the support plate and is fixedly connected to the drive roller.

[0013] As a further embodiment of this utility model: the limiting mechanism includes mounting seats symmetrically fixed on the inner side of the support plate, a baffle is rotatably mounted on the inner side of the mounting seat through a connecting ear, a shaft is symmetrically fixed on the top side of the support plate, and a threaded cylinder is rotatably mounted on the shaft through a connecting seat.

[0014] As a further embodiment of this utility model: a threaded seat is rotatably mounted on one end of the threaded cylinder, a threaded rod is slidably inserted inside the threaded cylinder, and the threaded rod is rotatably connected to the threaded seat; a limit shaft is fixed on the top side of the baffle, and one end of the threaded rod is rotatably connected to the limit shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This invention, through the structure of the fixing mechanism, allows the battery pack to be adsorbed and fixed as the lifting platform moves to the detection position with the cooperation of the piston and suction cup. After the detection and reset are completed, the fixing of the battery pack is released, thereby quickly replacing the battery pack to be tested and improving the detection efficiency of the battery pack. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a battery pack DCR testing fixture; Figure 2 This is a side sectional view of a fixing mechanism for a battery pack DCR testing fixture; Figure 3 A bottom-view sectional view of a portion of a battery pack DCR testing fixture; Figure 4 A rear sectional view of a battery pack DCR testing fixture conveying mechanism; Figure 5 This is a top-view cross-sectional schematic diagram of a limit mechanism for DCR testing of a battery pack.

[0017] In the diagram: 1. Support plate; 101. Fixing mechanism; 102. Conveying mechanism; 103. Limiting mechanism; 2. Base plate; 3. Hydraulic cylinder; 4. Hydraulic rod; 5. Lifting platform; 6. Fixing groove; 7. Suction cup; 8. Slide groove; 9. Piston; 10. Round rod; 11. Fixing plate; 12. Top plate; 13. DCR testing equipment body; 14. Drive roller; 15. Transmission roller; 16. Conveyor belt; 17. Auxiliary roller; 18. Driven roller; 19. Conveyor belt; 20. Pulley; 21. Belt; 22. Servo motor; 23. Mounting seat; 24. Connecting ear; 25. Baffle; 26. Shaft; 27. Connecting seat; 28. Threaded cylinder; 29. ​​Threaded seat; 30. Threaded rod; 31. Limiting shaft. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0021] Example 1: Please see Figures 1-3 This is the first embodiment of the present utility model. This embodiment provides a battery pack DCR testing fixture, including: Support plate 1, a fixing mechanism 101 is provided at the center of the inner side of support plate 1, a conveying mechanism 102 is provided on the inner side of support plate 1, and a limiting mechanism 103 is provided at one end of the inner side of support plate 1; The fixing mechanism 101 is fixed to the base plate 2 at the center of the inner side of the support plate 1. A hydraulic cylinder 3 is fixed to the bottom side of the base plate 2. A hydraulic rod 4 is slidably installed inside the hydraulic cylinder 3. The top of the hydraulic rod 4 passes through the base plate 2 and is fixed to a lifting platform 5. Fixed grooves 6 are evenly opened on the top side of the lifting platform 5. A suction cup 7 is fixed inside the fixed groove 6. Sliding grooves 8 are evenly opened on the inner side of the lifting platform 5. A piston 9 is slidably installed inside the sliding groove 8. A round rod 10 is fixed to the bottom side of the piston 9. The bottom end of the round rod 10 passes through the lifting platform 5 and is fixedly connected to the base plate 2.

[0022] Specifically, the hydraulic rod 4 is slidably connected to the base plate 2, the round rod 10 is slidably connected to the lifting platform 5, the bottom end of the suction cup 7 passes through the lifting platform 5 and communicates with the inner side of the slide groove 8, the top side of the support plate 1 is fixed with a fixing plate 11, the top side of the fixing plate 11 is fixed with a top plate 12, and the DCR detection equipment body 13 is fixedly installed at the center of the inner side of the top plate 12.

[0023] Furthermore, the DCR testing equipment body 13 can perform testing on the battery pack when it rises to the testing position, thereby improving the quality of battery pack production and processing.

[0024] In use, after the battery pack is moved to the detection position on the surface of the lifting platform 5, the battery pack adheres to the surface of the suction cup 7. The hydraulic cylinder 3 is controlled to extend the hydraulic rod 4 on its inner side, thereby pushing the lifting platform 5 to rise. At this time, the base plate 2 pulls the round rod 10 to drive the piston 9 to slide downward inside the slide groove 8, thereby drawing out the air inside the suction cup 7 and adsorbing and fixing the battery pack on the surface of the lifting platform 5 until the battery pack is moved to the bottom side of the DCR detection equipment body 13. At this time, it can be detected by the DCR detection equipment body 13. After the detection is completed, the hydraulic cylinder 3 is controlled to retract the hydraulic rod 4 on its inner side, thereby driving the lifting platform 5 to reset and causing the piston 9 to move to the top side of the slide groove 8, releasing the suction cup 7 from fixing the battery pack, so that it can be output for the next battery pack to be detected, thereby improving the detection efficiency of the battery pack.

[0025] In summary, through the structure of the fixing mechanism 101, the battery pack can be adsorbed and fixed by the piston 9 and the suction cup 7 when the lifting platform 5 moves to the detection position. After the detection and reset are completed, the fixing of the battery pack can be released, thereby quickly replacing the battery pack to be tested and improving the detection efficiency of the battery pack.

[0026] Example 2: Please see Figures 4-5 This is the second embodiment of the present utility model.

[0027] Specifically, the conveying mechanism 102 includes a drive roller 14 fixed to one end of the inner side of the support plate 1, a transmission roller 15 rotatably mounted near the middle position of the inner side of the support plate 1, a conveyor belt 16 fitted on the drive roller 14 and the transmission roller 15, a driven roller 18 rotatably mounted on the inner side of the support plate 1 away from the drive roller 14, an auxiliary roller 17 rotatably mounted near the middle position of the inner side of the support plate 1, a conveyor belt 19 fitted on the auxiliary roller 17 and the driven roller 18, a pulley 20 fixed to one end of the auxiliary roller 17 and the transmission roller 15 passing through the support plate 1, belts 21 fitted on the pulleys 20 on both sides, and a servo motor 22 fixed to one end of the side of the support plate 1, the output end of the servo motor 22 passing through the support plate 1 and fixedly connected to the drive roller 14.

[0028] Furthermore, by cooperating with the pulley 20 and the belt 21, the two conveyor belts 19 and 16 can move at the same speed and in the same direction, thereby realizing the function of conveying the battery pack during the inspection process.

[0029] Specifically, the limiting mechanism 103 includes a mounting base 23 symmetrically fixed inside the support plate 1. A baffle 25 is rotatably mounted inside the mounting base 23 via a connecting lug 24. A shaft 26 is symmetrically fixed on the top side of the support plate 1. A threaded cylinder 28 is rotatably mounted on the shaft 26 via a connecting base 27. A threaded seat 29 is rotatably mounted on one end of the threaded cylinder 28. A threaded rod 30 is slidably inserted inside the threaded cylinder 28 and is rotatably connected to the threaded seat 29. A limiting shaft 31 is fixed on the top side of the baffle 25, and one end of the threaded rod 30 is rotatably connected to the limiting shaft 31.

[0030] Furthermore, the structure of the baffle 25 allows the battery pack to be pushed to the center of the support plate 1 so that the battery pack is located directly below the DCR testing device body 13, thus facilitating its testing.

[0031] In use, rotating the threaded seat 29 causes the threaded rod 30 to extend or retract to the required length, thereby adjusting the two side baffles 25 to a suitable distance. Controlling the servo motor 22 causes the output drive roller 14 to rotate, thereby driving the conveyor belt 16 to move with the cooperation of the transmission roller 15. At this time, the transmission roller 15 drives the auxiliary roller 17 to rotate with the cooperation of the pulley 20 and the belt 21. Similarly, with the cooperation of the driven roller 18, it drives the conveyor belt 19 to move at the same speed and direction as the conveyor belt 16, thereby moving the battery pack on its surface to the detection position. After the detection is completed, it is output. During the conveying process, the battery pack contacts the baffle 25, and the baffle 25 pushes the battery pack to the center of the support plate 1 for detection.

[0032] In summary, the structure of the conveying mechanism 102 and the limiting mechanism 103 enables the conveying of the battery pack before and after the inspection, thereby improving the efficiency of battery pack inspection. During the conveying process, the baffle 25 can push the battery pack to the inspection position for inspection.

[0033] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0034] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A battery pack DCR testing fixture, comprising: The support plate (1) is characterized in that: a fixing mechanism (101) is provided at the center of the inner side of the support plate (1), a conveying mechanism (102) is provided on the inner side of the support plate (1), and a limiting mechanism (103) is provided at one end of the inner side of the support plate (1). The fixing mechanism (101) is fixed to the base plate (2) at the center of the inner side of the support plate (1). A hydraulic cylinder (3) is fixed to the bottom side of the base plate (2). A hydraulic rod (4) is slidably installed inside the hydraulic cylinder (3). A lifting platform (5) is fixed through the top of the hydraulic rod (4) through the base plate (2). A fixing groove (6) is evenly opened on the top side of the lifting platform (5). A suction cup (7) is fixed inside the fixing groove (6). A sliding groove (8) is evenly opened inside the lifting platform (5). A piston (9) is slidably installed inside the sliding groove (8). A round rod (10) is fixed to the bottom side of the piston (9). The bottom end of the round rod (10) passes through the lifting platform (5) and is fixedly connected to the base plate (2).

2. The battery pack DCR testing fixture according to claim 1, characterized in that: The hydraulic rod (4) is slidably connected to the base plate (2), the round rod (10) is slidably connected to the lifting platform (5), and the bottom end of the suction cup (7) passes through the lifting platform (5) and communicates with the inner side of the slide groove (8).

3. The battery pack DCR testing fixture according to claim 1, characterized in that: A fixing plate (11) is fixed on the top side of the support plate (1), and a top plate (12) is fixed on the top side of the fixing plate (11). The DCR detection equipment body (13) is fixedly installed at the center of the inner side of the top plate (12).

4. The battery pack DCR testing fixture according to claim 1, characterized in that: The conveying mechanism (102) includes a drive roller (14) fixed to one end of the inner side of the support plate (1), and a transmission roller (15) rotatably mounted on the inner side of the support plate (1) near the middle position. A conveyor belt (16) is fitted on the drive roller (14) and the transmission roller (15).

5. The battery pack DCR testing fixture according to claim 4, characterized in that: A driven roller (18) is rotatably mounted on the inner side of the support plate (1) away from the drive roller (14), and an auxiliary roller (17) is rotatably mounted on the inner side of the support plate (1) near the middle position. A conveyor belt (19) is fitted on the auxiliary roller (17) and the driven roller (18).

6. The battery pack DCR testing fixture according to claim 5, characterized in that: The auxiliary roller (17) and the transmission roller (15) are fixed with pulleys (20) through the support plate (1) at one end. Belts (21) are fitted on the pulleys (20) on both sides. A servo motor (22) is fixed on one side of the support plate (1). The output end of the servo motor (22) is fixed to the drive roller (14) through the support plate (1).

7. The battery pack DCR testing fixture according to claim 1, characterized in that: The limiting mechanism (103) includes a mounting seat (23) symmetrically fixed inside the support plate (1). A baffle (25) is rotatably mounted inside the mounting seat (23) through a connecting ear (24). A shaft (26) is symmetrically fixed on the top side of the support plate (1). A threaded cylinder (28) is rotatably mounted on the shaft (26) through a connecting seat (27).

8. The battery pack DCR testing fixture according to claim 7, characterized in that: A threaded seat (29) is rotatably mounted on one end of the threaded cylinder (28). A threaded rod (30) is slidably inserted inside the threaded cylinder (28), and the threaded rod (30) is rotatably connected to the threaded seat (29). A limit shaft (31) is fixed on the top side of the baffle (25), and one end of the threaded rod (30) is rotatably connected to the limit shaft (31).

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