High-efficiency heat-radiation dynamic cell, temperature control system of electric vehicle and electric vehicle

A power battery and temperature control system technology, applied in battery temperature control, battery temperature regulation, secondary battery, etc., can solve problems such as short board effect, uneven distribution of temperature field, unbalanced performance of battery cells, etc., and achieve performance improvement , avoid burning or explosion, high heat dissipation efficiency

CN101764249AActive Publication Date: 2010-06-30CHANGZHOU HETONG PURUN ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-06-30

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Abstract

The invention provides a high-efficiency heat-radiation dynamic cell, a temperature control system of an electric vehicle and an electric vehicle. The dynamic cell comprises a cell unit and one or more flat heat pipes of micro heat pipe arrays, wherein the flat heat pipes are bonded at the single face or double faces of the cell unit; and heat accumulated in the dynamic cell is led out of the dynamic cell by the flat heat pipes and is emitted into an environment outside a cell box by a mode of arranging an air passage in the cell box, the temperature in the dynamic cell is lowered, and the combustion or the explosion of the dynamic cell because of the accumulation of the heat is avoided. In the invention, the temperature in the cell box is regulated and controlled in an intellectualized way under a sealed condition by a mode of arranging a valve and a refrigeration fin on the air passage when the environmental temperature exceeds the range of the safety temperature of the dynamic cell, and the influence on the dynamic cell in the cell box because of environmental factors is avoided.
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Description

technical field

[0001] The invention relates to a high-efficiency heat dissipation power battery, an electric vehicle heat dissipation system using the power battery, and an electric vehicle. Background technique

[0002] The battery pack of an electric vehicle or a hybrid electric vehicle is usually composed of dozens or hundreds of battery cells connected in series. The battery pack is the main energy storage element in an electric vehicle. The operation of the battery pack directly affects the overall state of the electric vehicle. . If the electric vehicle battery pack works in a relatively harsh temperature environment for a long time, the performance of the battery will be significantly reduced. If the temperature of the battery pack is too high, the overall service life of the battery pack will be shortened, and in severe cases, the battery pack will spontaneously ignite, causing a serious accident; if the temperature of the battery pack is too low, the output voltag...

Examples

Embodiment Construction

[0030] The present invention will be described below in conjunction with the accompanying drawings.

[0031] like figure 1 As shown, the power battery of the present invention includes a battery unit 1 and a flat heat pipe 2, figure 1 The flat heat pipe 2 is a flat heat pipe with a micro heat pipe array in it, that is, a flat heat pipe with a plurality of micro heat pipes arranged in parallel in the heat conduction plate entity by extrusion or stamping, and of course other types of flat heat pipes, And has a certain deformation performance, so as to become a curved or other shape that can fit the surface. The battery unit 1 is a single battery with a structurally strong casing, or a soft packaged battery assembly with a structurally strong casing outside which is composed of two or more soft-sealed single cells. The casing here refers to a hard casing. The flat heat pipe 2 is attached to the side of the battery unit 1. The side of the battery unit 1 is a plane in this embodi...