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Compact type electric vehicle battery liquid cooling device

An electric vehicle battery and liquid cooling technology, applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problems of major breakthroughs in the performance of power batteries, affecting battery performance and life, and temperature differences in exothermic battery packs, etc., to achieve It is convenient for interior layout, improves anti-seismic performance, and has good sealing effect

Inactive Publication Date: 2013-10-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In electric vehicles or hybrid vehicles, the battery is one of its core components, and its performance directly affects the performance of electric vehicles and hybrid vehicles. However, due to technical constraints, the performance of power batteries is difficult to improve in the short term If the electric vehicle is to be commercialized, it is necessary to ensure that the battery works under optimal conditions to improve its performance and extend its life
The power battery pack used in electric vehicles is composed of multiple battery modules connected in series and parallel. During the charging and discharging process of the battery, heat will be generated, which will increase the overall temperature of the battery pack, and when the temperature is too high, it will seriously affect the performance of the battery. life, or even directly lead to battery failure
At the same time, when charging and discharging, the heat release or uneven heat dissipation of each single cell in the battery pack will cause temperature differences in the battery pack, and batteries with high local temperatures will age faster, and long-term operation will destroy the consistency of the battery pack, thus causing battery pack failure

Method used

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  • Compact type electric vehicle battery liquid cooling device
  • Compact type electric vehicle battery liquid cooling device
  • Compact type electric vehicle battery liquid cooling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 Shown: a compact electric vehicle battery liquid cooling device, including a battery box 102, the battery box 102 is provided with a plurality of interconnected battery modules, and the battery module is composed of a single battery 104 inserted into a heat-conducting shell 103 , the inner wall of the heat conduction housing 103 is bonded to the outer wall of the battery, the outer wall of the heat conduction housing is provided with a cooling pipe 107, and the cooling pipe 107 is installed in the channel 105 of the outer wall of the heat conduction housing, and the channel 105 It is a semicircle, and the channel 105 is attached to the cooling pipe 107 to reduce thermal resistance.

[0034] The cooling pipe 107 is a serpentine pipe or a plurality of parallel straight pipes, and the serpentine pipe is one or more.

[0035] The channel is semicircular, so as figure 2 As shown, the two opposite sides of adjacent battery modules share the cooling tube 107, ...

Embodiment 2

[0040] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the grooves on the outer wall of the heat conduction housing are parallel double serpentine pipe grooves, and the cooling pipes used are parallel double serpentine pipe grooves. Tube.

Embodiment 3

[0042] like Image 6 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the grooves on the outer wall of the heat conduction housing are three parallel serpentine pipe grooves, and the cooling pipes used are three parallel snakes. shaped tube.

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Abstract

The invention discloses a compact type electric vehicle battery liquid cooling device which comprises a battery box; the battery box is internally provided with a plurality of battery modules which are connected with one another; each battery module is formed by sheathing a single battery into a heat conduction shell, wherein the inner wall of the heat conduction shell is jointed with the outer wall of the battery; the outer wall of each heat conduction shell is provided with a cooling pipe; each cooling pipe is arranged in a slot of the outer wall of each heat conduction shell; each slot is jointed with each cooling pipe. The compact type electric vehicle battery liquid cooling device is simple and compact in structure and convenient to popularize and apply, and can effectively control the temperature of batteries to be within the best working temperature range, thus being suitable for various devices driven by the power batteries, and having a potential market prospect.

Description

technical field [0001] The invention relates to a cooling device, in particular to a compact electric vehicle battery liquid cooling device. Background technique [0002] In electric vehicles or hybrid vehicles, the battery is one of its core components, and its performance directly affects the performance of electric vehicles and hybrid vehicles. However, due to technical constraints, the performance of power batteries is difficult to improve in the short term If electric vehicles are to be commercialized, it is necessary to ensure that the battery works under optimal conditions to improve its performance and extend its life. The power battery pack used in electric vehicles is composed of multiple battery modules connected in series and parallel. During the charging and discharging process of the battery, heat will be generated, which will increase the overall temperature of the battery pack, and when the temperature is too high, it will seriously affect the performance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50
Inventor 王红民胡锐鸿杨志孙炎军
Owner SOUTH CHINA UNIV OF TECH
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