Inflation tool for airtight test of explosion-proof valve of battery pack

Abstract

The utility model relates to a battery pack explosion-proof valve airtight test inflation tool, which comprises a fixed seat, a quick clamp and an inflation seat, the fixed seat comprises an integrally formed support plate, two ends of the support plate are vertically bent towards the same side to form a pair of positioning plates, the quick clamp is rotatably connected to one end outside the support plate, the inflation seat is arranged between the two positioning plates, and the two ends of the support plate are connected with the inflation seat. One end of the inflation seat is connected with the quick clamp through a connecting rod, the inflation seat can be driven to slide by rotating the quick clamp, a hollow inflation cavity is formed in the end, away from the connecting rod, of the inflation seat, and an inflation head communicated with the inflation cavity is fixed to the outer wall of the inflation seat. The air tightness test inflation tool for the explosion-proof valve of the battery pack can be installed on a shell of the battery pack, the explosion-proof valve is plugged and opened, an inner cavity of the battery pack is inflated, pressurized and maintained, whether the pressure value is changed or not is detected through the pressure gauge, the air tightness of the battery pack is detected, and the safety of the battery pack during transportation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery pack testing technology, and in particular to a battery pack explosion-proof valve air tightness testing inflation tool. Background Technology

[0002] During packaging and transportation, batteries in new energy vehicles are placed in battery packs to ensure safety during transport. Existing battery packs are equipped with several explosion-proof valves that automatically open to release pressure when the internal pressure suddenly increases. However, using untested battery pack explosion-proof valves directly poses a risk of seal failure. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a battery pack explosion-proof valve airtightness testing and inflation tool that can seal the explosion-proof valve, seal and inflate the inner cavity of the battery pack, and perform airtightness testing.

[0004] This utility model is achieved through the following technical solution:

[0005] A battery pack explosion-proof valve airtightness testing inflation tool includes a fixed base, quick clamps, and an inflation seat. The fixed base includes an integrally formed support plate, with both ends of the support plate bent vertically to the same side to form a pair of positioning plates. The quick clamps are rotatably connected to one end of the support plate. The inflation seat is disposed between the two positioning plates. One end of the inflation seat is connected to the quick clamps via a connecting rod. Rotating the quick clamps can drive the inflation seat to slide. The end of the inflation seat away from the connecting rod has a hollow inflation cavity. An inflation head connected to the inflation cavity is fixed to the outer wall of the inflation seat.

[0006] In order to attract the valve plate inside the explosion-proof valve, the inner cavity of the air-filled seat has a magnet.

[0007] To prevent the air seat from damaging the explosion-proof valve, the end of the positioning plate away from the support plate has a baffle that bends vertically inward and limits the sliding range of the air seat.

[0008] To facilitate the assembly and disassembly of the quick-clamping clamps and to allow for their rotation, a nut is fixed to the outside of the support plate, and the quick-clamping clamps are rotatably connected to the nut via a rotating seat.

[0009] To facilitate the assembly and disassembly of the inflatable base, the inflatable base is fixed to the connecting rod by screws.

[0010] The beneficial effects of this utility model are: the battery pack explosion-proof valve airtightness test inflation tool can be installed on the battery pack shell, the explosion-proof valve is sealed and then opened, air is injected into the battery pack cavity, pressure is maintained, and then the pressure value is detected by a pressure gauge to detect whether there is a change in the pressure value, thereby detecting the airtightness of the battery pack and ensuring the safety of the battery pack during transportation. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the airtightness testing inflation tool for the battery pack explosion-proof valve of this utility model.

[0012] Figure 2 This is a bottom view of the airtightness testing inflation tool for the battery pack explosion-proof valve of this utility model. Detailed Implementation

[0013] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0014] like Figure 1 , Figure 2 The invention relates to an inflation tool for testing the air tightness of a battery pack explosion-proof valve, comprising a fixed base, quick-clamp 4, and an inflation base 3. The fixed base is U-shaped and includes a support plate 1. Both ends of the support plate 1 are bent vertically to the same side to form a pair of positioning plates 2. The end of the positioning plate 2 away from the support plate 1 has a baffle 10 that bends vertically inward. A nut 5 is fixed to the outside of the support plate 1. The quick-clamp 4 is rotatably connected to the nut 6 via a rotating seat 7. The inflation base 3 is a cylindrical structure and is located between the two positioning plates 2. One end of the inflation base 3 is detachably connected to the quick-clamp 4 via a connecting rod 8 and a screw 9. The end of the inflation base 3 away from the connecting rod 8 has a hollow inflation cavity. A magnet 11 is fixed inside the inflation cavity. A fixing sleeve 12 is fitted over the magnet 11. An inflation head 5 connected to the inflation cavity is fixed to the outer wall of the inflation base 3.

[0015] When in use, insert the fixing seat into the explosion-proof valve, rotate the quick clamp 4, the quick clamp 4 drives the inflation seat 3 and the magnet 11 to move inward, the magnet 11 can attract the valve plate of the explosion-proof valve to open, at this time air can be inflated into the battery pack through the inflation head 5, pressurize and maintain the pressure, and then use a pressure gauge to detect whether the pressure value changes, thereby detecting the airtightness of the battery pack.

[0016] It should be noted that the parts not covered by this utility model are the same as or can be implemented using existing technology.

[0017] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A battery pack explosion-proof valve airtightness testing inflation tool, characterized in that: The device includes a fixed base, a quick clamp, and an inflatable base. The fixed base includes an integrally formed support plate, with both ends of the support plate bent vertically to the same side to form a pair of positioning plates. The quick clamp is rotatably connected to one end of the support plate. The inflatable base is disposed between the two positioning plates. One end of the inflatable base is connected to the quick clamp via a connecting rod. Rotating the quick clamp can cause the inflatable base to slide. The end of the inflatable base away from the connecting rod has a hollow inflation cavity. An inflation head connected to the inflation cavity is fixed to the outer wall of the inflatable base.

2. The battery pack explosion-proof valve airtightness testing inflation tool according to claim 1, characterized in that: The inner cavity of the inflatable seat contains a magnet.

3. The battery pack explosion-proof valve airtightness testing inflation tool according to claim 2, characterized in that: The end of the positioning plate away from the support plate has a baffle that bends vertically inward and restricts the sliding range of the inflatable seat.

4. The battery pack explosion-proof valve airtightness testing inflation tool according to claim 2 or 3, characterized in that: A nut is fixed to the outside of the support plate, and the quick clamp is rotatably connected to the nut via a rotating seat.

5. The battery pack explosion-proof valve airtightness testing inflation tool according to claim 2 or 3, characterized in that: The inflatable base is fixed to the connecting rod by screws.

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