Battery pack output pole insulation detection jig
Patent Information
- Application Number
- CN202522218569.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-21
AI Technical Summary
[0003]常规的耐压测试方式是在绝缘层13的表面缠绕铜箔，再对铜箔施加特定电压，以检测绝缘层13是否被击穿；但面对该具有特殊造型和特征的输出极1，缠绕铜箔时操作不便，且缠绕过多或过少都会影响爬电距离，导致检测效率低下、检测结果不可靠，增加了检测难度
[0019]该电池包输出极绝缘检测治具通过支撑块、上压块、第一侧挡块和第二侧挡块对输出极进行限位并贴靠输出极的绝缘层，从而通过将输出极的导电部及支撑块、上压块、第一侧挡块和第二侧挡块中任一个接入试验电压，即可对绝缘层进行耐压测试，操作简单，批量测试效率高，测试结构可靠。
Smart Images
Figure CN224803163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation testing technology, and in particular to a battery pack output electrode insulation testing fixture. Background Technology
[0002] Figure 1 The image shows a battery pack output electrode product. The output electrode 1 has conductive portions 11 at both ends, a stepped portion 12 formed by bending in the middle, and is covered with an insulating layer 13 made of epoxy resin powder to ensure insulation between the output electrode 1 and the surface of the battery pack. To ensure the quality of electrical products, a withstand voltage test is required before shipment, which involves testing the insulation performance of the insulating layer 13 of the output electrode 1.
[0003] The conventional withstand voltage test method involves wrapping copper foil around the surface of the insulation layer 13 and then applying a specific voltage to the copper foil to detect whether the insulation layer 13 is broken down. However, for the output pole 1 with its special shape and characteristics, it is inconvenient to wrap copper foil, and wrapping too much or too little will affect the creepage distance, resulting in low detection efficiency, unreliable detection results, and increased detection difficulty. Utility Model Content
[0004] The purpose of this invention is to provide a battery pack output electrode insulation testing fixture, which reduces the difficulty of withstand voltage testing and improves testing efficiency for output electrodes with special shapes.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] A battery pack output electrode insulation testing fixture includes conductive portions at both ends of the output electrode and a stepped portion in the middle of the output electrode. The surface of the stepped portion is covered with an insulating layer. The battery pack output electrode insulation testing fixture includes an insulating base plate, a support block, an upper pressure block, a first side stop block, and a second side stop block, wherein:
[0007] The support block is placed on the insulating base plate. The support block is used to support the output electrode, and the support block only touches the lower surface of the insulating layer of the output electrode.
[0008] The upper pressure block is placed on the output electrode and only contacts the upper surface of the insulating layer of the output electrode;
[0009] The first and second side blocks are placed on the insulating base plate respectively, and only in contact with the two sides of the insulating layer of the output pole;
[0010] The support block, the first side block, the upper pressure block, and the second side block are all conductive and abut against each other around the output electrode in sequence. During the withstand voltage test, the conductive part is connected to one pole of the test voltage, and any one of the support block, the upper pressure block, the first side block, and the second side block is connected to the other pole of the test voltage.
[0011] As an alternative, the insulating base plate is provided with limiting grooves for positioning the support block, the first side stop block, and the second side stop block.
[0012] As an alternative, the limiting groove has an inverted triangular cross section. The support block, the first side stop block, and the second side stop block are all placed at an angle. The support block is provided with a boss that stops the step portion, so that the output pole is placed at an angle and the step portion remains against the boss under the action of gravity.
[0013] As an alternative, the upper pressure block is designed separately for the stepped portion. The upper pressure block includes a first pressure block and a second pressure block. The first pressure block is L-shaped and abuts the upper surface corner area of the insulation layer. The second pressure block abuts the first pressure block and the area on the upper surface of the insulation layer that is not covered by the first pressure block.
[0014] As an alternative, the first pressure block and the second pressure block are fixed together by bolts.
[0015] As an alternative, the first and second side blocks are fixed to the support block by bolts.
[0016] As an alternative, the support block and the insulating base plate are fixed together by bolts.
[0017] As an alternative, the support block, the first side block, the upper pressure block, and the second side block are flush with both ends of the insulation layer, and the ends of the insulation layer are exposed by 10mm to 20mm.
[0018] The beneficial effects of this utility model are:
[0019] This battery pack output electrode insulation testing fixture limits and abuts the output electrode against the insulation layer by using a support block, an upper pressure block, a first side block, and a second side block. By applying a test voltage to the conductive part of the output electrode and any one of the support block, upper pressure block, first side block, and second side block, the insulation layer can be subjected to withstand voltage testing. The operation is simple, the batch testing efficiency is high, and the testing structure is reliable. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the output pole provided in an embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the battery pack output electrode insulation testing fixture provided in this embodiment of the utility model;
[0022] Figure 3 This is a disassembly diagram of the battery pack output electrode insulation testing fixture provided in this embodiment of the utility model.
[0023] In the attached image:
[0024] 1. Output pole; 11. Conductive part; 12. Stepped part; 13. Insulating layer;
[0025] 2. Insulating base plate; 21. Limiting groove;
[0026] 3. Support block; 31. Boss;
[0027] 4. Upper pressure block; 41. First pressure block; 42. Second pressure block;
[0028] 5. First side stop;
[0029] 6. Second side stop. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0034] Figure 1The output electrode 1 shown has conductive portions 11 at both ends and a stepped portion 12 in the middle. The surface of the stepped portion 12 is covered with an insulating layer 13. The insulating layer 13 is specifically made of epoxy resin powder, but is not limited thereto; the stepped portion 12 is designed to fit the surface of the battery pack. Therefore, this invention provides a battery pack output electrode insulation testing fixture for performing withstand voltage tests on the output electrode 1 of this design.
[0035] like Figure 2 and Figure 3 As shown, the battery pack output electrode insulation testing fixture includes an insulating base plate 2, a support block 3, an upper pressure block 4, a first side stop block 5, and a second side stop block 6, wherein:
[0036] The support block 3 is placed on the insulating base plate 2. The support block 3 is used to support the output electrode 1, and the support block 3 is only in contact with the lower surface of the insulating layer 13 of the output electrode 1.
[0037] The upper pressure block 4 is placed on the output electrode 1 and only abuts against the upper surface of the insulating layer 13 of the output electrode 1;
[0038] The first side block 5 and the second side block 6 are respectively placed on the insulating base plate 2, and only in contact with the two side surfaces of the insulating layer 13 of the output pole 1.
[0039] The support block 3, the first side block 5, the upper pressure block 4, and the second side block 6 are all conductive bodies and are arranged in sequence around the output electrode 1. During the withstand voltage test, the conductive part 11 is connected to one pole of the test voltage, and any one of the support block 3, the upper pressure block 4, the first side block 5, and the second side block 6 is connected to the other pole of the test voltage.
[0040] Therefore, by using the support block 3, the upper pressure block 4, the first side block 5 and the second side block 6 to limit and abut against the insulation layer 13 of the output electrode 1, the insulation layer 13 can be subjected to withstand voltage test by connecting the conductive part 11 of the output electrode 1 and any one of the support block 3, the upper pressure block 4, the first side block 5 and the second side block 6. The operation is simple, the batch testing efficiency is high, and the test structure is reliable.
[0041] Optionally, the insulating base plate 2 is provided with a limiting groove 21 for positioning the support block 3, the first side stop 5 and the second side stop 6, so as to quickly, accurately and stably place the support block 3 and the subsequent first side stop 5 and second side stop 6, and ensure positional accuracy.
[0042] Furthermore, the cross-section of the limiting groove 21 is an inverted triangle. The support block 3, the first side stop block 5, and the second side stop block 6 are all placed at an inclination. The support block 3 is provided with a boss 31 that stops the step portion 12, so that the output pole 1 is placed at an inclination and the step portion 12 remains against the boss 31 under the action of gravity.
[0043] The advantage of the inclined design is that, with the help of the inherent step 12 and gravity, when the output electrode 1 is placed on the insulating base plate 2 and the upper pressure block 4 is placed on the output electrode 1, they can be stably attached to each other without the need for other clamping, which makes it convenient to load and unload the output electrode 1.
[0044] Optionally, the upper pressure block 4 is designed separately for the stepped portion 12. The upper pressure block 4 includes a first pressure block 41 and a second pressure block 42. The first pressure block 41 is L-shaped and abuts the upper surface corner area of the insulating layer 13. The second pressure block 42 abuts the area of the first pressure block 41 and the upper surface of the insulating layer 13 that is not covered by the first pressure block 41.
[0045] Among them, the separate first pressing block 41 and second pressing block 42 can better fit against the upper surface of the insulating layer 13. In particular, the first pressing block 41, since the angle of the step portion 12 is not necessarily a right angle, can reduce the overall forming requirements of the upper pressing block 4 and better fit the angle area of the step portion 12.
[0046] Furthermore, the first pressure block 41 and the second pressure block 42 are fixed together by bolts to ensure the integrity of the upper pressure block 4.
[0047] Optionally, the first side block 5 and the second side block 6 are respectively fixed to the support block 3 by bolts, so that the first side block 5 and the second side block 6 are in close contact with the output pole 1 on the insulating base plate 2.
[0048] Optionally, the support block 3 and the insulating base plate 2 are fixed together by bolts to ensure that the support block 3 is reliably fixed on the insulating base plate 2.
[0049] Optionally, the support block 3, the first side block 5, the upper pressure block 4, and the second side block 6 are flush with both ends of the insulating layer 13, and the ends of the insulating layer 13 are exposed by 10mm to 20mm, so that a suitable insulation distance is formed between the support block 3, the first side block 5, the upper pressure block 4, the second side block 6 and the conductive part 11, and the withstand voltage performance of the insulating part is accurately measured.
[0050] Therefore, the support block 3, the upper pressure block 4, the first side block 5, and the second side block 6 act as conductive blocks, abutting against the surface of the insulation layer 13 of the output electrode 1. This not only fixes the output electrode 1 but also facilitates the application of voltage to the entire outer surface of the insulation layer 13 to test its withstand voltage capability. This ensures the reliability of the test, the ease of operation, and the high efficiency of batch testing, providing an effective testing solution for the insulation performance of the battery pack.
[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A battery pack output electrode insulation testing fixture, wherein the two ends of the output electrode (1) are conductive portions (11), and a stepped portion (12) is provided in the middle of the output electrode (1), the surface of the stepped portion (12) being covered with an insulating layer (13), characterized in that, The battery pack output electrode insulation testing fixture includes an insulating base plate (2), a support block (3), an upper pressure block (4), a first side stop block (5), and a second side stop block (6), wherein: The support block (3) is placed on the insulating base plate (2). The support block (3) is used to support the output electrode (1), and the support block (3) is only in contact with the lower surface of the insulating layer (13) of the output electrode (1). The upper pressure block (4) is placed on the output electrode (1) and only abuts against the upper surface of the insulating layer (13) of the output electrode (1); The first side block (5) and the second side block (6) are respectively placed on the insulating base plate (2) and only in contact with the two side surfaces of the insulating layer (13) of the output pole (1); The support block (3), the first side block (5), the upper pressure block (4) and the second side block (6) are all conductors and are arranged in sequence around the output electrode (1). During the withstand voltage test, the conductive part (11) is connected to one pole of the test voltage, and any one of the support block (3), the upper pressure block (4), the first side block (5) and the second side block (6) is connected to the other pole of the test voltage.
2. The battery pack output electrode insulation testing fixture according to claim 1, characterized in that, The insulating base plate (2) is provided with a limiting groove (21) for positioning the support block (3), the first side block (5) and the second side block (6).
3. The battery pack output electrode insulation testing fixture according to claim 2, characterized in that, The limiting groove (21) has an inverted triangular cross section. The support block (3), the first side stop block (5) and the second side stop block (6) are all placed at an inclination. The support block (3) is provided with a boss (31) that stops the step part (12), so that the output pole (1) is placed at an inclination and the step part (12) remains against the boss (31) under the action of gravity.
4. The battery pack output electrode insulation testing fixture according to claim 1, characterized in that, The upper pressure block (4) is designed separately for the stepped part (12). The upper pressure block (4) includes a first pressure block (41) and a second pressure block (42). The first pressure block (41) is L-shaped and abuts the upper surface corner area of the insulating layer (13). The second pressure block (42) abuts the first pressure block (41) and the area on the upper surface of the insulating layer (13) that is not covered by the first pressure block (41).
5. The battery pack output electrode insulation testing fixture according to claim 4, characterized in that, The first pressure block (41) and the second pressure block (42) are fixed together by bolts.
6. The battery pack output electrode insulation testing fixture according to claim 1, characterized in that, The first side block (5) and the second side block (6) are respectively fixed to the support block (3) by bolts.
7. The battery pack output electrode insulation testing fixture according to claim 1, characterized in that, The support block (3) is fixed to the insulating base plate (2) by bolts.
8. The battery pack output electrode insulation testing fixture according to claim 1, characterized in that, The support block (3), the first side block (5), the upper pressure block (4) and the second side block (6) are flush with both ends of the insulating layer (13), and the ends of the insulating layer (13) are exposed by 10mm to 20mm.