An electric vehicle battery pack constant temperature control system and control method

A technology of constant temperature control and electric vehicles, which is applied in the direction of secondary batteries, circuits, electrical components, etc., can solve the problem that the battery pack cannot be controlled independently, and achieve the effect of improving the temperature field distribution

Active Publication Date: 2020-10-09
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a constant temperature control system and control method for electric vehicle battery packs to solve the problem that the battery packs in the prior art cannot be independently temperature controlled

Method used

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  • An electric vehicle battery pack constant temperature control system and control method
  • An electric vehicle battery pack constant temperature control system and control method
  • An electric vehicle battery pack constant temperature control system and control method

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Embodiment Construction

[0038] The technical solution of the present invention is described in detail below through the examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being interpreted as a limitation to the technical solution of the present invention.

[0039] Such as Figures 2 to 4 As shown, an electric vehicle battery pack constant temperature control system includes a battery pack 1, a battery pack front cooling plate 2, and a battery pack rear cooling plate 3; the battery pack is arranged between the battery pack front cooling plate and the battery pack rear cooling plate between; figure 2 where is the coolant flow path in a certain battery pack, where figure 2 Middle × means that the circulating fluid flow direction in the pipeline is vertically inward, · means that the circulating fluid flow direction in the pipeline is vertically outward.

[0040] Such as Figure 4 As sho...

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Abstract

The invention relates to a constant temperature control system of an electric automobile battery pack and a control method. The constant temperature control system of the electric automobile battery pack comprises a battery pack, a battery pack front end cooling plate and a battery pack rear end cooling plate. The battery pack is installed between the battery pack front end cooling plate and the battery pack rear end cooling plate. The battery pack front end cooling plate is provided with a front end cooling liquid inlet and a front end cooling liquid outlet. Each of battery pack front end inlet and battery pack rear end inlet is provided with a solenoid valve. The solenoid valve is connected with a controller by an electric signal. In the technical scheme, the periphery of each battery cell comprises four cooling liquid flow paths in adverse flowing directions, circulating and alternating occurrence of cooling liquid is realized, and a convection current is formed in the battery cell,so temperature field distribution around the battery cell is improved, and the high-temperature or low-temperature cooling liquid is avoided from being concentrated at a certain end of the battery cell while the flowing directions of all cooling liquid are the same.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle batteries, and refers to a constant temperature control system for electric vehicle battery packs, in particular to a method for arranging a constant temperature control circulation fluid network of electric vehicle battery packs. Background technique [0002] During the driving and use of electric vehicles, the chemical energy stored in each battery cell in the battery pack is not only converted into electrical energy, but also partly converted into heat energy and emitted. Due to the huge number of cells arranged in the battery pack, the heat generated is also very large If the heat is not dissipated in time, it will have a major hidden danger to the overall performance and safety of the battery pack. [0003] Different ambient temperatures have a great impact on the energy storage density and energy release efficiency of the cells. For example, in cold winters and hot summers, the char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/633H01M10/6557H01M10/6568
CPCH01M10/613H01M10/625H01M10/633H01M10/6557H01M10/6568Y02E60/10
Inventor 孙元
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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