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A battery and battery multi-channel plate phase change thermal management system and method

A technology of batteries and road plates, which is applied in the direction of secondary batteries, battery pack components, circuits, etc., and can solve the problems of restricting promotion and use

Active Publication Date: 2022-02-22
GUANGDONG INST OF SEMICON IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the defects in the uniform temperature design of the evaporator / condenser directly acting on the battery, the further promotion and use of this technology are limited.
[0004] Therefore, the present invention proposes a battery and battery multi-channel plate phase change thermal management system and method, which skillfully solves the problem of battery control and temperature uniform design

Method used

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  • A battery and battery multi-channel plate phase change thermal management system and method
  • A battery and battery multi-channel plate phase change thermal management system and method
  • A battery and battery multi-channel plate phase change thermal management system and method

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Embodiment 1

[0030] Such as figure 1As shown in -4, the embodiment of the present invention provides a battery, including a battery box 4 and a battery cell 1, the battery box 4 is provided with a battery hole matching the battery cell 1, and the battery cell 1 passes through the battery hole Through the battery box 4; the battery box 4 includes a first plate body 2 and N first flow channel plates 3, and N first flow channel plates 3 are installed at the lower end of the first plate body 2, and the first flow channel plates 3 includes a first frame 31 and a second board 32, the second board 32 is installed at the lower end of the first frame 31; Core hole, the battery core 1 passes through the first plate body 2 and N second plate bodies 32 in sequence; the first plate body 2 is the first area 21, the second area 22 and the third area from left to right Area 23, the first area 21 is provided with a refrigerant inlet 6, the second area 22 is provided with a plurality of battery holes, and ...

Embodiment 2

[0045] The invention also discloses a battery multi-channel plate phase change heat management system, including: a compressor, a gas-liquid separation device 11, a four-way valve 10, an external heat exchanger 9, a throttle valve 8 and a battery; The output end of the engine is connected to the first port of the four-way valve 10, the input end of the external heat exchanger 9 is connected to the second port of the four-way valve 10, and the output end of the external heat exchanger 9 passes through the throttle valve 8 and the battery box 4 The refrigerant inlet 6 is connected, the refrigerant outlet 7 of the battery box 4 is connected to the third port of the four-way valve 10, the fourth port of the four-way valve 10 is connected to the input end of the gas-liquid separation device 11, and the gas-liquid The output end of the classification device is connected to the input end of the compressor; when the four-way valve 10 is cooling the battery, the first port of the four-w...

Embodiment 3

[0048] The present invention also discloses a thermal management method of a battery, which uses the above-mentioned battery multi-channel plate phase change thermal management system, and the thermal management method includes:

[0049] The controller obtains the first temperature and the first pressure of the battery box 4, and judges whether the first temperature is higher than a preset temperature.

[0050] When the first temperature is higher than the preset temperature, the controller sends a first control command to the four-way valve 10, so that the first port of the four-way valve 10 communicates with the second port, and the third port of the four-way valve 10 The port communicates with the fourth port; the controller also generates a second control command according to the first pressure and the first temperature, and sends the second control command to the compressor, so that the compressor according to The second control command outputs the refrigerant with the se...

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Abstract

The invention relates to the technical field of new energy vehicle power batteries, and discloses a battery and a battery multi-channel plate type phase change thermal management system and method. The battery includes a battery box, and the battery box includes a multi-layer flow layer, and each laminar flow layer has a plurality of tortuous flow channels, which can make the refrigerant better exchange heat with the battery cell, and make the refrigerant phase change technology more widely available. Applied to battery phase change thermal control; the phase change thermal management system can enter different working modes when the battery is at different temperatures to realize heating or cooling of the battery; the method applies the above phase change thermal management system, can The temperature and pressure of the battery box can be adjusted under different temperature and pressure adjustments, and the purpose of controlling the battery temperature can be realized.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle power batteries, in particular to a battery and a battery multi-channel plate type phase change thermal management system and method. Background technique [0002] At present, with the depletion of petrochemical resources and the seriousness of air pollution, the development of the traditional automobile industry powered by petrochemical energy is gradually restricted. New energy electric vehicles have many advantages such as cleanness, greenness, and no pollution. With the maturity of related technologies, they are gradually being accepted and popularized by the society. The battery is one of the core components of electric vehicles, and its performance has a very important relationship with its own temperature. The electrochemical reaction in the battery is limited by the temperature. When the temperature is too low, the battery will fail to start; but when the temperature is too hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/6554H01M10/6556H01M10/6569H01M50/249
CPCH01M10/613H01M10/615H01M10/625H01M10/6554H01M10/6556H01M10/6569Y02E60/10
Inventor 张衍俊刘珠明陈志涛
Owner GUANGDONG INST OF SEMICON IND TECH