A multi-size battery cell insulation voltage resistance testing device

Abstract

The utility model discloses a kind of multi-size electric core insulation withstand voltage testing device, including fixed component;Moving assembly is set on fixed component, the moving assembly includes first moving plate and second moving plate, first moving plate and second moving plate are arranged in parallel and form electric core test area;Mounting assembly, including the mobile pole of being set in first moving plate and second moving plate through;Second moving plate is driven to slide along mobile pole, to adjust the interval of first moving plate and second moving plate continuously, adapt to the insulation withstand voltage test of different size electric core.The utility model passes through moving assembly, to realize the height restriction of widening electric core, realize the width variation of electric core.Also can be by adding same first moving plate and second moving plate mode to increase electric core height restriction, widen the length restriction of measurable electric core.

Description

Technical Field

[0001] This utility model relates to the field of battery cell insulation withstand voltage testing technology, and in particular to a multi-size battery cell insulation withstand voltage testing device. Background Technology

[0002] Battery production efficiency is influenced by various factors, among which differences in cell insulation withstand voltage testing fixture structure and testing methods are key factors restricting efficiency improvement, production line transformation progress, and cost control. In actual production, cell insulation withstand voltage testing fixtures not only serve as part of the cell process parameters but also, through specific structures, meet the specific requirements for cell insulation withstand voltage. Employing multi-size cell insulation withstand voltage testing structures not only reduces the difficulty of using traditional cylinders for battery insulation withstand voltage testing but also improves testing efficiency and ensures the safety and reliability of the testing process. Its greatest advantage lies in its adaptability to different cell models for insulation withstand voltage testing.

[0003] The current technology has shortcomings: the existing cell insulation withstand voltage test structure cannot be adapted to other cell sizes after use. This leads to problems such as idle production lines, wasted capacity, increased difficulty in modification, and extended production line modification and commissioning cycles. In view of these problems, there is an urgent need for a simple and efficient cell insulation withstand voltage test structure to improve the safety of cell insulation withstand voltage testing and accelerate the upgrading of production lines. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology. To achieve the above purpose, a multi-size battery cell insulation withstand voltage test device is adopted to solve the problems mentioned in the background technology.

[0005] A multi-size battery cell insulation withstand voltage testing device, comprising: Fixed components; A movable component is mounted on a fixed component. The movable component includes a first movable plate and a second movable plate, which are arranged in parallel opposite directions to form a cell testing area. The mounting components include a moving rod that extends through the first moving plate and the second moving plate; The second movable plate is driven to slide along the movable rod to continuously adjust the distance between the first and second movable plates, adapting to insulation withstand voltage tests of cells of different sizes.

[0006] As a further embodiment of this utility model: the fixing component includes a base plate, a support column vertically fixed to the base plate, a panel connected to the support column, and a first fixing plate and a second fixing plate symmetrically arranged on both sides of the panel. The mounting assembly also includes a bearing assembly mounted on the moving rod, and a probe test mounting plate.

[0007] As a further embodiment of this utility model: the first movable plate is fixedly connected to the movable rod; The second movable plate is slidably engaged with the movable rod via a bearing.

[0008] As a further embodiment of this utility model: the bearing is disposed through the second movable plate, the first fixed plate, and the second fixed plate; It also transitions to the moving rod and is fixed to the corresponding component by bolts.

[0009] As a further embodiment of this utility model: the bearing is disposed through the second movable plate, the first fixed plate, and the second fixed plate; It also features a transition fit with the moving rod and is bolted to the corresponding component. The transition fit between the bearing and the moving rod ensures smooth sliding with low friction, extending the service life of the moving component; at the same time, it avoids positioning deviations caused by excessive clearance, improving testing accuracy.

[0010] As a further aspect of this invention, the fixing component further includes a fixing block disposed on the panel. The fixing block consists of a front-end pad and a rear-end metal base, and is connected to the panel by countersunk bolts. This connection method improves the structural stability of the fixing block, avoiding connection failure due to vibration or impact; it also facilitates disassembly and replacement, reducing maintenance costs.

[0011] As a further embodiment of this invention: the first fixing plate and the second fixing plate are provided with reinforcing columns and a test fixing plate. The reinforcing columns significantly improve the bending resistance of the fixing plates, prevent fatigue deformation caused by repeated stress during long-term use, and ensure the long-term stability of the test fixture.

[0012] As a further aspect of this invention, the test fixing plate adopts a U-shaped groove structure. The test fixing plate provides precise cell positioning, ensuring stable contact between the probe and the cell test point, avoiding test errors caused by cell misalignment, and improving the accuracy of insulation withstand voltage testing.

[0013] As a further aspect of this invention, it also includes a force sensor rod and a push block. The push block is transitionally fitted to the front end of the force sensor rod, and the end of the force sensor rod is connected to a spoke-type pressure sensor. The spoke-type pressure sensor monitors the pressure value in real time during the pressing process, preventing cell damage or test failure due to over- or under-voltage, and providing data support for optimizing test parameters.

[0014] As a further embodiment of this invention: the movable rod is connected to a cylinder mounting plate, and the cylinder mounting plate drives the movable rod to move axially via an electric cylinder. The electric cylinder drive achieves automation, precisely adjusting the displacement speed and pressure of the movable plate, reducing manual intervention, and improving testing consistency and production efficiency.

[0015] As a further embodiment of this utility model: the first fixed plate, the second fixed plate, the first movable plate and the second movable plate are all provided with reserved connection holes to support the addition of expansion plates to adjust the test height and width.

[0016] Compared with the prior art, the present invention has the following technical advantages: By adopting the above technical solution, the first and second moving plates are driven to slide on the moving rod, changing the position and distance between the first and second fixed plates. This, combined with the probe test mounting plate, allows for insulation withstand voltage testing of battery cells of different sizes. The three-section modular design achieves a compact structure and clear functional partitioning, facilitating rapid assembly and maintenance. The synergistic effect of the moving and fixed components allows for flexible adjustment of the testing fixture's spatial range, adapting to the testing needs of battery cells of different sizes and significantly improving testing efficiency. Attached Figure Description

[0017] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the withstand voltage test structure according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the test fixing plate according to an embodiment of this application.

[0018] In the diagram: 1. Moving component; 2. Fixed component; 3. Mounting component; 4. First moving plate; 5. Moving rod; 6. Cylinder mounting plate; 7. Second moving plate; 8. Bearing; 9. Base plate; 10. Support column; 11. Panel; 12. First fixed plate; 13. Second fixed plate; 14. Pad; 15. Base; 30. Push block; 31. Force sensor rod; 32. Reinforcing column; 33. Test fixing plate; 34. Probe test mounting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please refer to Figure 1 In this embodiment of the invention, a multi-size battery cell insulation withstand voltage testing device includes: Fixed component 2; A movable component 1 is mounted on a fixed component 2. The movable component 1 includes a first movable plate 4 and a second movable plate 7. The first movable plate 4 and the second movable plate 7 are arranged in parallel and opposite to each other to form a cell testing area. Mounting component 3 includes a moving rod 5 that passes through the first moving plate 4 and the second moving plate 7; The second movable plate 7 is driven to slide along the movable rod 5 to continuously adjust the distance between the first movable plate 4 and the second movable plate 7, so as to adapt to the insulation withstand voltage test of battery cells of different sizes.

[0021] The fixing component 2 includes a base plate 9, a support column 10 vertically fixed to the base plate 9, a panel 11 connected to the support column 10, and a first fixing plate 12 and a second fixing plate 13 symmetrically arranged on both sides of the panel 11. Mounting assembly 3 also includes a bearing 8 mounted on the moving rod 5, and a probe test mounting plate 34; The first movable plate 4 is fixedly connected to the movable rod 5; The second movable plate 7 is slidably engaged with the movable rod 5 via the bearing 8; In this embodiment, the bearing 8 is disposed through the second movable plate 7, the first fixed plate 12, and the second fixed plate 13; and is transitionally fitted with the movable rod 5, and is fixed to the corresponding component by bolts.

[0022] In this embodiment, the fixing component 2 further includes a fixing block disposed on the panel 11. The fixing block consists of a pad 14 at the front end and a metal base 15 at the rear end, and is connected to the panel 11 by countersunk bolts.

[0023] like Figure 2 As shown in the figure, this is a schematic diagram of the test fixing plate. In this embodiment, the first fixing plate 12 and the second fixing plate 13 are provided with reinforcing columns 32 and test fixing plates 33.

[0024] In this embodiment, the test fixing plate 33 adopts a U-shaped groove structure.

[0025] In this embodiment, a force sensor rod 31 and a push block 30 are also included. The push block 30 is transitionally fitted with the front end of the force sensor rod 31, and the end of the force sensor rod 31 is connected to a spoke-type pressure sensor.

[0026] In this embodiment, the moving rod 5 is connected to the cylinder mounting plate 6, and the cylinder mounting plate 6 drives the moving rod 5 to move axially via an electric cylinder.

[0027] In this embodiment, the first fixed plate 12, the second fixed plate 13, the first movable plate 4 and the second movable plate 7 are all provided with reserved connection holes to support the addition of expansion plates to adjust the test height and width.

[0028] The following describes the working principle and process of the embodiments disclosed in this utility model: The moving assembly 1 consists of a first moving plate 4 and a moving rod 5 connected by bolts and washers. A cylinder mounting plate 6 is also connected to the moving rod 5 via bolts and washers. A second moving plate 7 is bolted to a bearing 8. The bearing 8 and the moving rod 5 are connected via an transition fit. The fixing assembly 2 consists of a base plate 9 and a support column 10 connected by bolts. A panel 11 is also bolted to the support column 10. A first fixing plate 12 and a second fixing plate 13 are bolted to the panel 11. The fixing block consists of a pad 14 and a base 15, which are connected and fixed together. The fixing block is bolted to the panel 11. The mounting assembly 3 consists of a moving rod 16 and a bearing 8, which pass through the assembly via an transition fit. The bearing 8 is bolted to the first fixing plate 12, the second fixing plate 13, and the second moving plate 7. The moving rod 5 and the bearing 8 pass through the assembly via an transition fit. The bearing 8 is bolted to the first fixing plate 12, the second fixing plate 13, and the second moving plate 7. The moving rod 5 is fitted with the bearing 8. The push block 30 and the force sensor rod 31 are installed with an intermediate fit, and the spoke-type pressure sensor is placed on the second moving plate 7.

[0029] Two reinforcing columns 32 are installed on the first fixing plate 12 and the second fixing plate 13.

[0030] The first fixing plate 12 and the second fixing plate 13 are equipped with two test fixing plates 33 and a probe test mounting plate 34. The probes on the plate are connected to the insulation withstand voltage tester.

[0031] The working principle of this utility model is as follows: During use, the electric cylinder pushes the force sensor rod forward to achieve the pressing purpose. The movable positions of the first fixed plate 12, the second fixed plate 13, the first movable plate 4, and the second movable plate 7 widen the height limit of the battery cell, realizing the variation of the width of the battery cell. The height limit of the battery cell can also be increased and the length limit of the measurable battery cell can be widened by adding the same movable plate and fixed plate.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

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