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Explosion-proof valve, battery pack and vehicle

An explosion-proof valve and battery pack technology, applied in the field of vehicles, can solve problems such as poor reliability, poor safety performance, and inability to discharge gas.

Active Publication Date: 2020-12-25
SVOLT ENERGY TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the case of thermal runaway of the battery pack, a large amount of gas generated inside the battery pack shell needs to be discharged to the outside, and the existing explosion-proof valves often have poor reliability and cannot discharge the gas inside the battery pack shell in a timely and effective manner. Difference

Method used

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  • Explosion-proof valve, battery pack and vehicle
  • Explosion-proof valve, battery pack and vehicle
  • Explosion-proof valve, battery pack and vehicle

Examples

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Embodiment Construction

[0045]Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0046] In this disclosure, in the absence of a contrary statement, the used orientation words such as "inside and outside" refer to the inside and outside of the specific structural outline, and the used terms such as "first and second" are only for distinguishing One element and another element do not have sequence and importance.

[0047] Such as Figure 1 to Figure 14 As shown, the present disclosure provides an explosion-proof valve for being disposed on the battery pack case 100 to exhaust the inside of the battery pack case 100 . The explosion-proof valve includes an explosion-proof valve body 1 and a pressure relief structure 2. A first exhaust passag...

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Abstract

The invention relates to an explosion-proof valve, a battery pack and a vehicle, the explosion-proof valve comprises an explosion-proof valve body and a pressure relief structure, a first exhaust passage is formed on the explosion-proof valve body, and a second exhaust passage used for communicating with the interior of a battery pack shell is formed on the pressure relief structure; and the pressure relief structure is movably connected to the explosion-proof valve body so that the first exhaust channel can be selectively communicated with the interior of the battery pack shell. Under the first working condition that the air pressure in the battery pack shell is smaller than the pressure threshold value, the pressure relief structure blocks the first exhaust channel, the interior of the battery pack shell communicates with the outside atmosphere through the second exhaust channel, and under the second working condition that the air pressure in the battery pack shell is larger than orequal to the pressure threshold value, the pressure relief structure moves in the direction away from the first exhaust channel under the action of air pressure in the battery pack shell, so that theinterior of the battery pack shell is communicated with the outside atmosphere through the first exhaust channel and the second exhaust channel, and the explosion-proof valve is high in reliability and safety coefficient.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, relates to an explosion-proof valve, a battery pack and a vehicle. Background technique [0002] The contemporary automobile industry is undergoing revolutionary changes, that is, traditional fuel vehicles are gradually being replaced by new energy vehicles, among which pure electric vehicles are emerging as a type of new energy vehicles, and many transmission fuel vehicle platforms directly replace the engine structure with power The battery pack structure replaces the power source of the car from fuel to batteries. With the decline of new energy subsidies, the design of low-cost battery packs has become the focus of the research and development of major battery factories. However, the premise of low cost must be the safety of the battery pack. In the first place, the safety design of the 811 system battery pack has become one of the hot spots in the current new ener...

Claims

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Application Information

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IPC IPC(8): H01M2/12
CPCH01M2220/20H01M2200/20Y02E60/10
Inventor 樊少泽陈许超周月王博文张海建唐丽娟于达
Owner SVOLT ENERGY TECHNOLOGY CO LTD
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