Pressure-resistant jig structure

By designing a pressure-resistant fixture structure for insulated parts of battery sheets, and using magnetic suction devices of upper cover plate and test bench to clamp the measured parts, the problem of inaccurate detection results in the prior art is solved, and the problem of inaccurate detection results is realized. More accurate and reliable voltage resistance performance detection.

CN222506386UActive Publication Date: 2025-02-18EVE ENERGY CO LTD
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Patent Information

Application Number
CN202420839235.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2025-02-18
Estimated Expiration
2034-04-22

AI Technical Summary

Technical Problem

When testing the voltage resistance of sheet-type insulated parts in batteries, the prior art lacks unified testing fixtures and standard methods, resulting in inaccurate detection results and the risk of missed detection and failure of detection.

Method used

Design a pressure-resistant fixture structure, including an upper cover plate and a test bench, with magnetic suction devices on both, for clamping the measured part so that it has a larger contact area with the upper cover plate and the test bench. The holding force is more balanced and accurate.

Benefits of technology

Through this structure, the pressure resistance performance of insulated components can be more accurately detected, the risk of detection failure can be reduced, and the reliability of test results can be ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of battery testing, in particular to a pressure-resistant jig structure, which is used for measuring a piece to be tested and comprises an upper cover plate, a first magnetic device is arranged on the upper cover plate, a test board is arranged at the lower end of the upper cover plate, and a second magnetic device is arranged at the lower end of the test board. The first magnetic attraction device and the second magnetic attraction device are both used for clamping the tested piece, the size of the upper cover plate and the size of the testing table are both larger than the size of the tested piece, the tested piece is better clamped through the mutual attraction effect of the first magnetic attraction device and the second magnetic attraction device, and therefore the testing result is more accurate.
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Description

Technical Field

[0001] The utility model relates to the field of battery testing, in particular to a pressure-resistant fixture structure. Background Art

[0002] At present, there is no unified test fixture or the test method is very non-standard when conducting voltage resistance performance tests on thin-film insulating components (aerogel, insulating gaskets) in the battery field. It is impossible to truly detect the true voltage resistance performance of the insulating components, resulting in the risk of failure of the subsequent system. When the insulating component supplier conducts the voltage resistance test of the insulating component, a positive electrode clip / pen and a negative electrode clip / pen are randomly overlapped on a certain area on the insulating component for voltage resistance test. Such testing method is likely to cause missed detection or incomplete detection, and ultimately cause detection failure. Utility Model Content

[0003] The purpose of the utility model is to provide a pressure-resistant fixture structure to solve the problem that the pressure-resistant test results of insulating parts by traditional tools in the prior art are incomplete and inaccurate, resulting in detection failure.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A pressure-resistant fixture structure is used to measure a workpiece under test. The pressure-resistant fixture structure includes an upper cover plate, a first magnetic device is provided on the upper cover plate, a test bench is provided at the lower end of the upper cover plate, and a second magnetic device is provided at the lower end of the test bench. The first magnetic device and the second magnetic device are both used to clamp the workpiece under test, and the size of the upper cover plate and the size of the test bench are both larger than the size of the workpiece under test.

[0006] The utility model discloses a withstand voltage fixture structure, which is used for testing thin-sheet insulating parts (test pieces) in batteries. An upper cover plate and a test bench are provided, and a first magnetic attraction device and a second magnetic attraction device are respectively provided on the upper cover plate and the test bench. The test piece is placed between the upper cover plate and the test bench. Since the sizes of the upper cover plate and the test bench are larger than the sizes of the test piece, the contact areas between the test piece, the upper cover plate and the test bench are larger. Since the upper cover plate and the test bench are respectively provided with the first magnetic attraction device and the second magnetic attraction device, the first magnetic attraction device and the second magnetic attraction device can attract each other during the test process, so that the test piece can be clamped better and the clamping force can be more balanced. Since the test piece is clamped by the upper cover plate and the test bench at the same time, when a withstand voltage test is required, the operator only needs to clamp the positive and negative electrodes on the test bench to perform the test. Since the upper cover plate and the test bench are in contact with the entire surface of the test piece, the test result is more accurate.

[0007] As a preferred solution of the present invention, both the first magnetic attraction device and the second magnetic attraction device are magnetic attraction sheets. This arrangement can reduce costs and facilitate replacement.

[0008] As a preferred solution of the utility model, the upper cover plate includes a pressing plate, the upper end surface of the pressing plate is connected to the first magnetic device, and a handle is provided at the end of the first magnetic device not connected to the pressing plate. This arrangement is convenient for operators to carry out picking up and construction, and has a simple structure and is easy to assemble.

[0009] As a preferred embodiment of the present invention, the pressing plate includes at least one first magnetic plate, and a metal sheet is provided on the side of the first magnetic plate facing the test piece, and two adjacent first magnetic plates can be spliced ​​together. In this way, the pressing plate can be spliced ​​and assembled according to the size of the test piece, ensuring that the size of the pressing plate is always larger than the size of the test piece. The metal sheet is provided to ensure that the entire surface of the pressing plate in contact with the test piece can conduct electricity, so that the test effect is more accurate.

[0010] As a preferred solution of the present invention, the handle body is a bakelite structural member, so that the handle can be directly connected to the first magnetic attraction device and can provide an insulation effect to improve safety.

[0011] As a preferred solution of the utility model, the pressing plate body is a magnetic plastic plate, which ensures that the pressing plate can be connected to the first magnetic attraction device.

[0012] As a preferred solution of the utility model, the test bench includes a base, the upper end of the base is connected to the second magnetic device, and a test plate is provided at the end of the second magnetic device not connected to the base. This arrangement makes the test bench structure easy to disassemble and install.

[0013] As a preferred solution of the utility model, the test board includes at least one second magnetic plate, and a metal sheet is provided at one end of the second magnetic plate facing the test piece, and two adjacent second magnetic plates can be spliced ​​with each other. This arrangement allows the test board to be adjusted according to the size of the test piece, ensuring that the size of the test board is always larger than the size of the test piece, and the metal sheet is provided to ensure that the entire surface of the test board in contact with the test piece can conduct electricity, so that the test effect is more accurate.

[0014] As a preferred solution of the present utility model, the test board body is a magnetic plastic board, which is convenient for connecting it with the second magnetic attraction device.

[0015] As a preferred solution of the utility model, the base body is a bakelite structural member, and such a configuration enables the base to be connected to the test board through the second magnetic attraction device.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model is a withstand voltage fixture structure, which is used to test thin-sheet insulating components (test pieces) in batteries. An upper cover plate and a test bench are provided, and a first magnetic attraction device and a second magnetic attraction device are provided on the upper cover plate and the test bench respectively. The test piece is placed between the upper cover plate and the test bench. Since the sizes of the upper cover plate and the test bench are larger than the sizes of the test piece, the contact area between the test piece and the upper cover plate and the test bench is larger. Since the upper cover plate and the test bench are provided with the first magnetic attraction device and the second magnetic attraction device respectively, the first magnetic attraction device and the second magnetic attraction device can attract each other during the test process, so that the test piece can be better clamped, and the clamping force can be more balanced. Since the test piece is clamped by the upper cover plate and the test bench at the same time, when a withstand voltage test is required, the operator only needs to clamp the positive and negative electrodes on the test bench to perform the test. Since the upper cover plate and the test bench are in contact with the entire surface of the test piece, the test result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the pressure-resistant fixture of the utility model;

[0019] Figure 2 It is a schematic diagram of the test bench structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the test bench of the utility model.

[0021] Icons: 1-test bench; 11-base; 111-through slot; 12-test board; 2-upper cover; 21-pressing plate; 22-handle; 3-test object; 4-first magnetic device; 5-second magnetic device. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings.

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] Example 1

[0025] like Figure 1A withstand voltage fixture structure is shown, which is used to test thin-sheet insulating components (i.e., the test piece 3) in a battery. The fixture structure includes an upper cover plate 2, and a first magnetic attraction device 4 is provided on the upper cover plate 2. A test bench 1 is provided in the lower area of ​​the upper cover plate 2. A second magnetic attraction device 5 is provided at the lower end of the test bench 1. The sizes of the upper cover plate 2 and the test bench 1 are both larger than the size of the test piece 3. When a test is required, the construction personnel place the test piece 3 on the test bench 1, and then test the test piece 3 through the upper cover plate 2. Clamping, since the size of the test piece 3 is smaller than that of the upper cover plate 2 and the test bench 1, the contact area between the test piece 3 and the test bench 1 and the upper cover plate 2 is larger, and the subsequently measured data is more accurate. Moreover, since the first magnetic attraction device 4 and the second magnetic attraction device 5 are both magnetic attraction sheets, the first magnetic attraction device 4 and the second magnetic attraction device 5 can attract each other through magnetic force, thereby increasing the clamping force of the upper cover plate 2 and the test bench 1 on the test piece 3, so that the pressure-resistant fixture structure can be clamped more tightly.

[0026] As mentioned above, the upper cover plate 2 includes a pressing plate 21 that contacts the test piece 3, and the pressing plate 21 is a magnetic plastic plate structure. The upper end of the pressing plate 21 is connected to the first magnetic attraction device 4. The first magnetic attraction device 4 is provided with a handle 22 at one end away from the pressing plate 21. By providing the handle 22, it is convenient for the operator to take the upper cover plate 2 in subsequent use;

[0027] Furthermore, the handle 22 is made of bakelite, and the body of the pressing plate 21 is a magnetic plastic plate, so that the handle 22 and the pressing plate 21 can be connected and fixed by the first magnetic device 4, which is convenient for subsequent disassembly and assembly;

[0028] Furthermore, the pressing plate 21 includes at least one first magnetic plate, and two adjacent first magnetic plates can be spliced, so that when the size of the measured object 3 is larger than the size of the first magnetic plate, the size of the pressing plate 21 can be ensured to be always larger than the size of the measured object 3 by splicing multiple first magnetic plates, so that the entire surface of the measured object 3 can be covered by the pressing plate 21, thereby ensuring the accuracy of the measured data. Figure 1 shown.

[0029] As mentioned above, the pressing plate 21 has a metal sheet on one side facing the test piece 3.

[0030] or,

[0031] The side of the pressing plate 21 facing the test piece 3 is provided with a metal powder coating, so that the entire surface of the pressing plate 21 is conductive, so that after the operator uses the positive and negative electrode pens to contact the pressing plate 21, the original point-to-surface contact can be changed to surface-to-surface contact, making the test structure more accurate.

[0032] As mentioned above, the test bench 1 includes a base 11, a through slot 111 is provided in the middle of the base 11, and the through slot 111 is opened vertically, and a test board 12 is provided at the upper end of the base 11, and the test board 12 is used to place the test piece 3, and the body of the test board 12 is made of metal material to facilitate subsequent conduction. The through slot 111 is provided to reduce the weight of the entire fixture, making the fixture more convenient during transportation, such as Figure 2-3 shown.

[0033] As mentioned above, the base 11 is made of bakelite, and the upper end of the base 11 is connected to the second magnetic device 5, and a test board 12 is provided at one end of the second magnetic device 5 away from the base 11;

[0034] Furthermore, the test board 12 includes at least one second magnetic plate, and when the number of the second magnetic plates is greater than one, two adjacent second magnetic plates can be spliced ​​together. In this way, when the size of the test piece 3 is larger than the size of the second magnetic plate, the adjacent second magnetic plates can be spliced ​​together to form a test board 12, thereby ensuring that the size of the test board 12 is larger than the size of the test piece 3, ensuring that the test board 12 can cover the entire surface of the test piece 3 during the test, so that the test result is more accurate.

[0035] Furthermore, a second magnetic attraction device 5 is provided under the test board 12, and a first magnetic attraction device 4 is provided on the pressure plate 21 that clamps the test piece 3 together with the test board 12. In this way, when the test board 12 and the pressure plate 21 clamp the test piece 3, the first magnetic attraction device 4 and the second magnetic attraction device 5 are magnetically attracted to each other, so that the clamping force of the test board 12 and the pressure plate 21 on the test piece 3 is increased. Figure 2-3 shown.

[0036] As mentioned above, the test board 12 has a metal sheet on one side facing the test piece 3.

[0037] or,

[0038] The test board 12 is provided with a metal powder coating on one side facing the test piece 3, so that the entire surface of the test board 12 is conductive, so that after the operator uses the positive and negative electrode pens to contact the test board 12, the original point-to-surface contact can be changed to surface-to-surface contact, making the test structure more accurate.

[0039] Example 2

[0040] Different from the first embodiment, when the handle 22 is made of acrylic or other materials, a magnetic sheet needs to be attached to the end of the handle 22 facing the pressing plate 21, so that the handle 22 can be connected to the first magnetic device 4 on the pressing plate 21 through the magnetic sheet;

[0041] When the base 11 is made of acrylic or other materials, it is also necessary to stick a magnetic sheet on the upper end of the base 11 facing the test board 12 so that the base 11 can be connected to the second magnetic device 5 at the bottom of the test board 12 through the magnetic sheet.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-resistant fixture structure for measuring a test piece (3), characterized in that: The pressure-resistant fixture structure comprises an upper cover plate (2), a first magnetic device (4) is provided on the upper cover plate (2), a test bench (1) is provided at the lower end of the upper cover plate (2), a second magnetic device (5) is provided at the lower end of the test bench (1), the first magnetic device (4) and the second magnetic device (5) are both used to clamp the test piece (3), and the size of the upper cover plate (2) and the size of the test bench (1) are both larger than the size of the test piece (3).

2. A pressure-resistant fixture structure according to claim 1, characterized in that: The first magnetic attraction device (4) and the second magnetic attraction device (5) are both magnetic attraction sheets.

3. A pressure-resistant fixture structure according to claim 1, characterized in that: The upper cover plate (2) comprises a pressing plate (21), the upper end surface of the pressing plate (21) is connected to the first magnetic attraction device (4), and a handle (22) is provided at the end of the first magnetic attraction device (4) not connected to the pressing plate (21).

4. A pressure-resistant fixture structure according to claim 3, characterized in that: The pressing plate (21) comprises at least one first magnetic attraction plate, and a metal sheet is provided on a side of the first magnetic attraction plate facing the test piece (3), and two adjacent first magnetic attraction plates are spliced ​​with each other.

5. A pressure-resistant fixture structure according to claim 3, characterized in that: The handle (22) body is a bakelite structural member.

6. A pressure-resistant fixture structure according to claim 4, characterized in that: The pressing plate (21) body is a magnetic plastic plate.

7. A pressure-resistant fixture structure according to claim 4, characterized in that: The test bench (1) comprises a base (11), the upper end of the base (11) is connected to the second magnetic attraction device (5), and the end of the second magnetic attraction device (5) not connected to the base (11) is provided with a test plate (12).

8. A pressure-resistant fixture structure according to claim 7, characterized in that: The test board (12) comprises at least one second magnetic attraction plate, one end of the second magnetic attraction plate facing the tested object (3) is provided with a metal sheet, and two adjacent second magnetic attraction plates can be spliced ​​with each other.

9. A pressure-resistant fixture structure according to claim 8, characterized in that: The main body of the test plate (12) is a magnetic plastic plate.

10. A pressure-resistant fixture structure according to claim 8, characterized in that: The base (11) body is a bakelite structural member.