Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat management system and method for battery pack of electric automobile

A battery management system, electric vehicle technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve problems such as easy leakage, complex liquid circulation structure, etc., to achieve the effect of simplified structure and simple operation

Active Publication Date: 2014-07-30
CHERY AUTOMOBILE CO LTD
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: the liquid circulation structure is complex and easy to leak

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heat management system and method for battery pack of electric automobile
  • Heat management system and method for battery pack of electric automobile
  • Heat management system and method for battery pack of electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] see figure 1 , an embodiment of the present invention provides a thermal management system for an electric vehicle battery pack, including a battery case 2, a battery cell 3, a heating system, a heat dissipation system, and a BMS (Battery Management System, battery management system) (not shown in the figure) ). A plurality of battery cells 3 are evenly arranged in the battery case 2, and the inside of the battery case 2 is provided with a "T"-shaped middle windshield 1, such as figure 1 As shown, the length of the long plate arranged parallel to the battery cell 3 in the middle windshield 1 is slightly shorter than the length of the long side of the battery case 2, and one end of the long plate of the middle windshield 1 is connected to the length of the battery case 2 The right end is connected, the short plate is set close to the left end of the battery case 2, the long plate of the middle windshield 1 divides the battery case 2 into two spaces, and the two spaces p...

Embodiment 2

[0050] see also Figure 1-Figure 3 , the embodiment of the present invention utilizes the thermal management system provided in Embodiment 1 to provide a thermal management method for an electric vehicle battery pack, the method comprising:

[0051] 101: The BMS monitors the state of the battery pack;

[0052] 102: When the state of the battery pack meets the heating condition:

[0053] The BMS controls the heating system to turn on, the air intake system and the air outlet system to close, and heats the battery pack;

[0054] At this time, the heating system heats up, and the gas inside the battery pack figure 1 Flow in the direction indicated by the middle arrow to heat each single battery.

[0055] 103: When heating until the state of the battery pack does not meet the heating conditions, control the heating system a to shut down and stop heating;

[0056] 102': When the state of the battery pack meets the heat dissipation condition:

[0057] The BMS controls the intak...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a heat management system and method for a battery pack of an electric automobile, belonging to the field of heat management of a battery pack of an electric automobile. The system comprises a battery pack shell and a battery management system, wherein a T-shaped middle wind deflector is arranged inside the battery pack shell, is connected with one end of the battery pack shell and is used for partitioning the battery pack shell into two spaces; the two spaces are communicated with each other through a gap formed between the other end of the battery pack shell and the middle wind deflector; one end of the battery pack shell which is connected with the middle wind deflector is provided with a heat-radiating system and a heating system; the heat-radiating system comprises an air inlet system and an air outlet system; the air inlet system and the air outlet system are positioned on both sides of the middle wind deflector respectively, and are positioned outside the battery pack shell; and the heating system passes through the middle wind deflector and is arranged inside the battery pack shell. In the invention, the battery pack is subjected to heating and heat radiating through the air; and the heat management system has a simple structure, and is free from liquid leakage.

Description

technical field [0001] The invention relates to the field of thermal management of battery packs of electric vehicles, in particular to a battery pack thermal management system of electric vehicles and a method for using the system to perform thermal management on battery packs. Background technique [0002] In recent years, the energy crisis and environmental degradation have become important factors restricting global development. The development and utilization of clean energy is a powerful means to solve the energy crisis and improve the environment. As an important clean energy, rechargeable batteries have been used as power energy in the field of electric vehicles. [0003] At present, rechargeable batteries used as power sources cannot work normally in extreme low temperature (less than -30°C) and extreme high temperature (greater than 50°C) environments, resulting in the failure of electric vehicles that use them as energy sources. Therefore, it is necessary to perf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/625H01M10/6563H01M10/635
CPCY02E60/10
Inventor 谭巍
Owner CHERY AUTOMOBILE CO LTD