Blocking tool for airtightness test of battery pack valve body

Abstract

The utility model relates to a battery pack valve body airtight test plugging tool, which comprises a fixing sleeve, a sealing sleeve, a guide seat and a rotating handle, the fixing sleeve is of a columnar hollow structure, one side of the fixing sleeve is provided with an opening which is connected with a battery pack explosion-proof valve in an inserted mode, the other side of the fixing sleeve is fixedly provided with the guide seat, and the sealing sleeve is slidably connected with an inner cavity of the fixing sleeve. The rotating handle is in threaded connection with the guide seat, one end of the rotating handle is arranged outside the fixing sleeve, the other end of the rotating handle is fixed to the sealing sleeve, and the rotating handle can drive the sealing sleeve to slide along an inner cavity of the fixing sleeve. The sealing tool for the airtightness test of the battery pack valve body can be installed on a battery pack shell, the valve body can be sealed by rotating the rotating handle, the sealing performance of sealing is guaranteed, the sealing tool is used in cooperation with a battery pack anti-explosion valve inflation tool, whether a battery pack shell assembly has leakage points except an anti-explosion valve capable of exhausting air or not is detected, and therefore the safety of the sealing tool 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 valve body airtightness testing and sealing tool. Background Technology

[0002] During packaging and transportation, batteries for new energy vehicles are placed in battery packs to ensure safety during transport. Existing battery packs are equipped with several venting valves. If there are uncontrollable leaks in the battery pack casing, substances such as water, which can affect the performance, lifespan, and even safety of the battery modules, may enter. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a battery pack valve body airtightness testing and sealing tool capable of sealing leak points on the battery pack housing.

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

[0005] A battery pack valve body airtightness test sealing tool includes a fixed sleeve, a sealing sleeve, a guide seat, and a rotating handle. The fixed sleeve is a cylindrical hollow structure with an opening on one side for insertion into the battery pack explosion-proof valve, and the guide seat is fixed on the other side. The sealing sleeve is slidably connected to the inner cavity of the fixed sleeve. The rotating handle is threadedly connected to the guide seat. One end of the rotating handle is located outside the fixed sleeve, and the other end is fixed to the sealing sleeve. The rotating handle can drive the sealing sleeve to slide along the inner cavity of the fixed sleeve.

[0006] To facilitate positioning and insertion of the battery pack explosion-proof valve, the opening is a regular hexagonal structure, and the diameter of the circle containing the opening is smaller than the inner diameter of the fixed sleeve.

[0007] To ensure the sealing effect, the sealing sleeve is a cylindrical hollow structure, with an annular sealing element fixed at one end near the opening. The diameter of the circle containing the annular sealing element is the same as the diameter of the circle containing the opening.

[0008] For ease of assembly and disassembly, the rotary handle is fixed to the sealing sleeve by a locking screw.

[0009] The beneficial effects of this utility model are: the battery pack valve body airtightness test sealing tool can be installed on the battery pack housing. By rotating the handle, the valve body can be sealed to ensure the sealing performance. When used in conjunction with the battery pack explosion-proof valve inflation tool, it can detect whether there are any leakage points in the battery pack housing assembly other than the ventable explosion-proof valve, thereby ensuring its safety. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the battery pack valve body airtightness testing and sealing tool of this utility model;

[0011] Figure 2 This is a cross-sectional view of the battery pack valve body airtightness testing and sealing tool of this utility model. Detailed Implementation

[0012] 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.

[0013] like Figure 1 , Figure 2 The illustrated battery pack valve body airtightness testing and sealing tool includes a fixed sleeve 1, a sealing sleeve 3, a guide seat 2, and a rotating handle 4. The fixed sleeve 1 is a cylindrical hollow structure with an opening 7 on one side for insertion into the battery pack explosion-proof valve. The opening 7 is a regular hexagonal structure, and the diameter of the circle containing the opening 7 is smaller than the inner diameter of the fixed sleeve 1. The guide seat 2 is fixed to the other side. The sealing sleeve 3 is slidably connected to the inner cavity of the fixed sleeve 1. The sealing sleeve 3 is a cylindrical hollow structure, and an annular sealing element 5 is fixed to one end near the opening 7. The diameter of the circle containing the annular sealing element 5 is the same as the diameter of the circle containing the opening 7. The rotating handle 4 is threadedly connected to the guide seat 2. One end of the rotating handle 4 is located outside the fixed sleeve 1, and the other end is fixed to the sealing sleeve 3 by a locking screw 6.

[0014] When in use, the sealing tool is installed on the battery pack housing, and the fixing sleeve 1 is fitted onto the battery pack valve body. At this time, the rotating handle 4 is rotated, which drives the sealing sleeve 3 and the annular seal 5 to press down. The annular seal 5 can then seal the valve body. It is used in conjunction with the battery pack explosion-proof valve inflation tool to detect whether there are any leaks in the battery pack housing assembly other than the ventable explosion-proof valve, thereby ensuring its safety.

[0015] It should be noted that the parts not covered by this utility model are the same as or can be implemented using existing technology.

[0016] 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 valve body airtightness testing and sealing tool, characterized in that: The device includes a fixed sleeve, a sealing sleeve, a guide seat, and a rotating handle. The fixed sleeve is a cylindrical hollow structure with an opening on one side for insertion into the battery pack explosion-proof valve. The opening is a regular hexagon with a diameter smaller than the inner diameter of the fixed sleeve. The guide seat is fixed to the other side. The sealing sleeve is slidably connected to the inner cavity of the fixed sleeve. The sealing sleeve is also a cylindrical hollow structure with an annular seal fixed to one end near the opening. The diameter of the annular seal is the same as the diameter of the opening. The rotating handle is threaded to the guide seat. One end of the rotating handle is located outside the fixed sleeve, and the other end is fixed to the sealing sleeve by a locking screw. Rotating the rotating handle causes the sealing sleeve and the annular seal to press down, thus sealing the valve body.

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