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Battery box body end plate, battery assembly, electric vehicle and exhaust control method

A technology of electromagnetic control and box, which is applied in the direction of electrical components, vehicle parts, exhaust plug devices, etc., and can solve problems such as explosion and inability to quickly remove gas

Pending Publication Date: 2022-04-05
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a battery box end plate, a battery assembly, an electric vehicle and a control method. The active double exhaust device has a simple structure, high exhaust efficiency, and a large exhaust volume, which can increase the gas discharge speed of the battery box. Improve the safety performance of the battery assembly and solve the explosion problem caused by the excessive internal pressure of the battery pack and the inability to quickly remove the gas

Method used

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  • Battery box body end plate, battery assembly, electric vehicle and exhaust control method
  • Battery box body end plate, battery assembly, electric vehicle and exhaust control method
  • Battery box body end plate, battery assembly, electric vehicle and exhaust control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] refer to figure 1 , figure 2 , This embodiment provides a battery box end plate, including a battery box end plate body 1 , a water inlet pipe joint 2 , a water outlet pipe joint 3 , a quick-plug water pipe joint 4 , a low-voltage harness joint 5 and a high-voltage joint 6 .

[0047] The battery box end plate body 1 is arranged at the front end of the battery lower box.

[0048] The water inlet pipe joint 2 is fixed on the battery box end plate body 1; the inner and outer sides of the battery box of the water inlet pipe joint 2 are connected with the quick-plug water pipe joint 4, which is used for the over-board connection in the battery liquid cooling system , to ensure that the coolant enters the battery liquid cooling system.

[0049] refer to image 3 , the water inlet pipe joint 2 includes a first smoke sensor 201 , two first connecting males 202 , two first electromagnetic control devices 203 and two first through-lines 204 .

[0050] The first smoke sensor ...

Embodiment 2

[0073] This embodiment provides a battery assembly, including the end plate of the battery case in the first embodiment. The battery assembly adopts the end plate of the battery box in the first embodiment, and the thermal runaway is judged through the water inlet pipe joint 2, the water outlet pipe joint 3 and the low-voltage wire harness joint 5, so as to realize double-layer monitoring and avoid the failure of harmful gas caused by a single signal failure. Discharge in time, solve the explosion problem caused by the excessive internal pressure of the battery pack and cannot quickly remove the gas, increase the gas discharge speed of the battery box, and improve the safety performance of the battery assembly.

Embodiment 3

[0075] This embodiment provides an electric vehicle, including the battery assembly in the second embodiment. The electric vehicle uses the battery assembly in Embodiment 2 to realize double-layer monitoring, which avoids the failure to discharge harmful gas in time due to the failure of a single signal, and solves the explosion problem caused by the excessive internal pressure of the battery pack that cannot quickly remove the gas. The gas discharge speed of the battery box is increased, thereby improving the safety of the electric vehicle.

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Abstract

The invention relates to a battery box body end plate, a battery assembly, an electric vehicle and a control method. Comprising a battery box body end plate body, a water inlet pipe joint, a water outlet pipe joint, a quick-plug water pipe joint, a low-voltage wire harness joint and a high-voltage joint, the battery box body end plate body is arranged at the front end of the battery lower box body; the water inlet pipe joint and the water outlet pipe joint are fixed on the battery box body end plate body; the water inlet pipe joint and the water outlet pipe joint are fixed on the battery box body end plate body; two ends of the water inlet pipe joint and the water outlet pipe joint are connected with one end of the quick-plug water pipe joint; the low-voltage wire harness joint is fixed on the battery box body end plate body, one end is connected with a battery BMS system, and the other end is connected with a whole vehicle HCU; and the other end of the high-voltage connector is connected with the high-voltage line outside the battery pack. The air exhausting device is simple in structure, high in air exhausting efficiency and large in air exhausting amount, the air exhausting speed of the battery box body can be increased, and the safety performance of a battery assembly is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a battery box end plate, a battery assembly, an electric vehicle and a control method. Background technique [0002] At present, the development prospects of new energy vehicles are very broad, but with the development of technology, various safety issues of new energy vehicles frequently arise. As a key core component of new energy vehicles, the safety performance of power batteries has always been a difficult problem in the industry. Because power batteries generally use lithium-ion batteries, which have high energy density and good functional performance, but in extreme cases, thermal runaway is prone to occur. The battery produces a large amount of high-temperature and high-pressure gas and solids in a short period of time, which may cause the battery pack to catch fire. , Explosion, a very high potential safety hazard. [0003] The patent with the publication number CN...

Claims

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Application Information

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IPC IPC(8): H01M50/30H01M50/244H01M50/298B60K1/04
CPCY02E60/10
Inventor 卢军孙焕丽于长虹李黎黎张頔许立超岳振东刘鹏
Owner CHINA FIRST AUTOMOBILE