Auxiliary tool for measuring insulating property of battery box
By designing an auxiliary tooling for insulating plates, adaptive insulating foam layers and conductive foam, the problem of missing measurement of insulation performance measurement of large-size battery boxes is solved, and efficient and safe insulation performance measurement is achieved.
Patent Information
- Application Number
- CN202421369386.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The prior art cannot efficiently and safely measure the insulation performance of large-sized battery boxes, and it is prone to missed testing.
An auxiliary tooling including an insulating plate, an adaptive insulating foam layer and conductive foam is designed. The conductive foam is equipped with high-voltage resistant wires, which can cover the surface of the battery box and receive current signals, and combine the support frame and hoisting assembly to achieve large-area measurements.
It realizes one-time measurement of the insulation performance of large-size battery boxes, improves measurement efficiency, avoids missed measurements, and ensures measurement accuracy and safety.
Smart Images
Figure CN223065426U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, and particularly relates to an auxiliary tooling for measuring the insulation performance of a battery box. Background Art
[0002] With the popularization of electronic devices and the increasing demand for portable power sources, batteries, as energy storage devices, have been widely used. The insulation performance of the battery box is one of the key factors to ensure the safe operation of the battery. The battery box, as a barrier between the internal structure of the battery and the external environment, plays a role in preventing electrical contact between the internal components of the battery and the outside world. The quality of the insulation performance directly affects the safety performance of the battery.
[0003] The battery box is structurally divided into an upper cover and a lower housing. In order to evaluate the insulation performance of the battery housing, corresponding tests are required. The existing methods can only measure the insulation performance of a small area and cannot complete the test at one time. Especially for the battery box of new energy vehicles, the battery box of new energy vehicles is usually large-sized, and the measurement efficiency is low and it is very easy to miss the measurement when measuring in small areas. Summary of the Utility Model
[0004] In view of this, the utility model provides an auxiliary tooling for measuring the insulation performance of a battery box, aiming to improve the measurement efficiency of the insulation performance of the battery box, ensure the measurement safety, and avoid the situation of missing measurement.
[0005] To achieve the above object, the technical solution of the utility model is as follows:
[0006] An auxiliary tooling for measuring the insulation performance of a battery box includes a tooling body. The tooling body has an insulating board, an adaptive insulating foam layer, and a conductive foam that are arranged in an overlapping manner from top to bottom. A high-voltage-resistant wire is arranged in the adaptive insulating foam layer. One end of the high-voltage-resistant wire is conductively connected to the conductive foam, and the other end is provided with a wiring terminal. The conductive foam is configured into a plate-like structure and is used for fitting and installing on the surface of the battery box to be measured.
[0007] With the above structure, the need for measuring the insulation performance of a large area at one time is solved, and the situation of missing measurement is avoided.
[0008] Preferably: Conductive copper plates are arrayed on the upper surface of the conductive foam. The high-voltage-resistant wires are distributed in a mesh form in the adaptive insulating foam layer. Each of the conductive copper plates is electrically connected between the conductive foam and the high-voltage-resistant wire. With the above structure, the current signal is fully collected to ensure the accuracy of the measurement.
[0009] Preferably: The wiring terminal penetrates upward and is exposed above the insulating board. With the above structure, it is convenient to connect the wiring terminal to the electrode.
[0010] Preferably, the thickness of the conductive foam is less than that of the adaptive insulating foam layer. With the above structure, the adaptive insulating foam layer presses on the conductive foam, enabling the conductive foam to be in full contact with the battery box.
[0011] Preferably, the thickness of the adaptive insulating foam layer is 20 - 100 mm, and the thickness of the conductive foam is 10 mm. With the above structure, both cost and performance are taken into account, and the cost is controlled while ensuring normal current reception.
[0012] Preferably, the thickness of the insulating board is 10 mm. With the above structure, the safety of measurement is ensured.
[0013] Preferably, the insulating board, the adaptive insulating foam layer, and the conductive foam are all rectangular. With the above structure, it adapts to the shape of the battery box and avoids measurement dead angles.
[0014] Preferably, a structural support frame is provided above the insulating board. The structural support frame includes a rectangular frame and two symmetric cross beams in the middle. A hoisting component is provided in the middle of the two cross beams, and a hand-held component is provided in the middle of the shorter side of the rectangular frame. With the above structure, the flexible adaptive insulating foam layer and conductive foam are fixed to prevent deformation from affecting the measurement effect, and the hoisting component makes the operation more convenient.
[0015] Preferably, 4 rows of the high-voltage resistant wires are evenly arranged along the length direction inside the adaptive insulating foam layer, with 5 wires evenly arranged in each row, divided into 20 detection areas. With the above structure, the measurement area is evenly divided to ensure the measurement effect.
[0016] Preferably, the insulating board is provided with avoidance through holes at positions corresponding to the high-voltage resistant wires inside the adaptive insulating foam layer. With the above structure, it prevents the high-voltage resistant wires from getting too hot.
[0017] Compared with the prior art, the beneficial effects of the present utility model are:
[0018] 1. For the large-size battery boxes of new energy vehicles, the conductive foam is manufactured to have the same area as the bottom plate of the battery box. After it covers the bottom plate of the battery box, it can directly achieve one-time measurement. For battery boxes with extremely large areas, at most only two measurements are required to cover the entire area, greatly improving the measurement efficiency and avoiding missed measurements caused by traditional small-area measurements.
[0019] 2. The auxiliary tooling for the insulation performance of the battery box includes an adaptive insulation foam layer and a conductive foam. The adaptive insulation foam layer is internally provided with high-voltage-resistant wires, which are evenly distributed and can receive all current signals in the area of the conductive foam. The adaptive insulation foam layer presses the conductive foam, enabling the conductive foam to adapt to the slight sinking and protrusion of the battery box, ensuring that the conductive foam can be in full contact with the battery surface and ensuring the accuracy of measurement.
[0020] 3. An insulation board is provided above the adaptive insulation foam layer. The insulation board is provided with avoidance through-holes corresponding to the positions of the high-voltage-resistant wires inside the adaptive insulation foam layer to ensure measurement safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural diagram of the present utility model;
[0022] Figure 2 is a schematic diagram showing the high-voltage-resistant wire 4 and the copper plate electrode 4b;
[0023] Figure 3 is a schematic diagram showing the layout of the high-voltage-resistant wire 4;
[0024] Figure 4 is a reference diagram of the use state of the present utility model;
[0025] Figure 5 is a schematic diagram of the detection principle of the auxiliary tooling. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] The present utility model will be further described below in conjunction with embodiments and the drawings.
[0027] As Figure 1 and Figure 2 shown, an auxiliary tooling for measuring the insulation performance of a battery box includes a tooling body A. The tooling body A has an insulation board 1, an adaptive insulation foam layer 2, and a conductive foam 3 that are sequentially overlapped from top to bottom. The insulation board 1, the adaptive insulation foam layer 2, and the conductive foam 3 are all rectangular. The adaptive insulation foam layer 2 is internally provided with high-voltage-resistant wires 4. One end of the high-voltage-resistant wire 4 is conductively connected to the conductive foam 3, and the other end is provided with a terminal 4a. The terminal 4a passes upward and is exposed above the insulation board 1. The conductive copper plates 4b are arrayed on the upper surface of the conductive foam 3, and each conductive copper plate 4b is electrically connected between the conductive foam 3 and the high-voltage-resistant wire 4. The conductive foam 3 is configured as a plate-like structure for fitting and mounting on the surface of the battery box 6 to be measured.
[0028] As Figure 2As shown in the figure, the thickness of the conductive foam 3 is less than that of the self-adaptive insulating foam layer 2. Specifically, the thickness of the self-adaptive insulating foam layer 2 is 20 - 100 mm, the thickness of the conductive foam 3 is 10 mm, and the thickness of the insulating plate 1 is 10 mm. The self-adaptive insulating foam layer 2 can provide pressure to the conductive foam 3, enabling the conductive foam 3 to adapt to slight sinking and protrusion on the surface of the battery box 6, ensuring that the conductive foam 3 can be in full contact with the battery surface and guaranteeing the accuracy of measurement.
[0029] As Figure 1 and Figure 3 shown in the figure, along the length direction inside the self-adaptive insulating foam layer 2, 4 rows of the high-voltage-resistant wires 4 are evenly arranged, with 5 wires evenly arranged in each row, divided into 20 detection areas. The high-voltage-resistant wires 4 are distributed in a mesh form inside the self-adaptive insulating foam layer 2. The insulating plate 1 is provided with avoidance through-holes 1a at the positions corresponding to the high-voltage-resistant wires 4 inside the self-adaptive insulating foam layer 2. The high-voltage-resistant wires 4 can transmit the current signals of the entire area of the auxiliary tooling. If the area to be detected is large, the area of the auxiliary tooling is increased to adapt to the size of the battery box 6, and the number of high-voltage-resistant wires 4 is correspondingly increased to ensure the accuracy of detection.
[0030] As Figure 1 and Figure 3 shown in the figure, a structural support frame 5 is provided above the insulating plate 1. The structural support frame 5 includes a rectangular frame and two symmetrical crossbeams 5a in the middle. A hoisting component 5c is provided in the middle of the two crossbeams 5a, and a hand-held component 5c is provided in the middle of the shorter side of the rectangular frame. For a large batch of battery boxes 6 of the same size, the hoisting component 5c can be used in cooperation with automated operation to further improve the detection efficiency.
[0031] As Figure 4 and Figure 5 shown in the figure, when detecting the insulation performance of the battery box 6, the conductive foam 3 is closely attached to the surface of the battery box 6. Different electrodes are connected to the battery box 6 and the wiring terminal 4a and are connected to a current detection device in the circuit. For example, the battery box 6 is connected to the positive electrode and the wiring terminal 4a is connected to the negative electrode. If the current detection device collects current, it indicates that a loop is formed, and it is determined that the insulation of the battery box 6 fails and is unqualified. On the contrary, if the current detection device does not collect current, it indicates that no loop is formed, and it is determined that the insulation of the battery box 6 is good and the product is qualified.
[0032] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Under the inspiration of the present invention, those of ordinary skill in the art can make various similar representations without violating the purpose and claims of the present invention. Such transformations all fall within the protection scope of the present invention.
Claims
1. An auxiliary tool for measuring the insulation performance of a battery box, comprising a tooling body (A), characterized in that: The tooling body (A) has an insulating board (1), an adaptive insulating foam layer (2), and a conductive foam (3) that are arranged overlappingly from top to bottom. The adaptive insulating foam layer (2) is internally provided with high-voltage-resistant wires (4). One end of the high-voltage-resistant wire (4) is electrically connected to the conductive foam (3), and the other end is provided with a terminal (4a). The conductive foam (3) is configured into a plate-like structure and is used for fitting and installing on the surface of the battery box to be tested (6).
2. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, characterized in that: The upper surface of the conductive foam (3) is arrayed with conductive copper plates (4b). The high-voltage-resistant wires (4) are distributed in the adaptive insulating foam layer (2) in a mesh form. Each of the conductive copper plates (4b) is electrically connected between the conductive foam (3) and the high-voltage-resistant wire (4).
3. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, characterized in that: The terminal (4a) passes upward and is exposed above the insulating board (1).
4. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, wherein: The thickness of the conductive foam (3) is less than the thickness of the adaptive insulating foam layer (2).
5. An auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, characterized in that: The thickness of the adaptive insulating foam layer (2) is 20 - 100 mm, and the thickness of the conductive foam (3) is 10 mm.
6. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, wherein: The thickness of the insulating board (1) is 10 mm.
7. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, wherein: The insulating board (1), the adaptive insulating foam layer (2), and the conductive foam (3) are all rectangular.
8. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, characterized in that: Above the insulating board (1), there is a structural support frame (5). The structural support frame (5) includes a rectangular frame and two symmetric cross beams (5a) in the middle. A hoisting assembly (5b) is provided in the middle of the two cross beams (5a), and a hand-held assembly (5c) is provided in the middle of the shorter side of the rectangular frame.
9. The auxiliary tooling for measuring the insulation performance of a battery box according to claim 1, wherein: Inside the adaptive insulating foam layer (2), 4 rows of the high-voltage-resistant wires (4) are evenly arranged along the length direction, with 5 wires evenly arranged in each row, divided into 20 detection areas.
10. An auxiliary tool for measuring the insulation performance of a battery box according to claim 1, characterized in that: The insulating board (1) is provided with avoidance through holes (1a) at positions corresponding to the high-voltage-resistant wires (4) inside the adaptive insulating foam layer (2).