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Temperature control component, temperature control pipe and heat management system for lithium battery pack

A thermal management system, a technology for lithium battery packs, applied in battery temperature control, batteries, electrical components, etc., can solve the problems of inconsistent battery cell temperature and inability to effectively control the temperature of lithium battery packs, achieving good consistency and improving service life , the effect of prolonging the service life

Pending Publication Date: 2018-02-09
苏州正力新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The first purpose of the present invention is to propose a lithium battery pack temperature control component to solve the technical problem that the temperature in the lithium battery pack cannot be effectively controlled
[0008] The second purpose of the present invention is to propose a temperature control pipeline to solve the technical problem of the inconsistency of the temperature of the battery cells at different positions in the lithium battery pack

Method used

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  • Temperature control component, temperature control pipe and heat management system for lithium battery pack
  • Temperature control component, temperature control pipe and heat management system for lithium battery pack
  • Temperature control component, temperature control pipe and heat management system for lithium battery pack

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, a lithium battery pack temperature control component proposed by the present invention is a multi-layer pipe, and an internal water pipe 14, a heat-conducting filler 13, a PTC heating plate 15, a glue filler 16, and a packaging shell 17 are sequentially arranged from the inside to the outside. A PTC heating control board 12 is arranged between the PTC heating board 15 and the packaging shell 17 . The use of lithium battery pack temperature control components has the advantages of constant temperature heating, energy saving, good safety performance, and long service life.

[0038] The PTC heating plate 15 is composed of a plurality of heating plates to form a polygonal pipe wrapping the internal water pipe 14, each heating plate is located at a corresponding tangent position of the pipeline, and the PTC heating control plate 12 is attached to one of the heating plates. In this embodiment, a hexagonal heating pipe is used to expand the area to ...

Embodiment 2

[0040] Such as Figure 2-4 As shown, the present invention proposes a temperature control pipe for a lithium battery pack, using the temperature control part, wherein the inner water pipe 14 is provided with a straight pipe and a spiral pipe surrounded by an outer spiral, and rubber is used at the junction of the two temperature control pipes. The connecting pipe 11 is connected, and the spiral pipe and the straight pipe of the two temperature control pipes are switched inside the rubber connecting pipe. The straight pipe of one section is connected to the spiral pipe of the other section, and the spiral pipe of one section is connected to the straight pipe of the other section. The rubber connecting pipe is connected, and the rubber connecting pipe includes a rubber pipe clip 5 and a sealing rubber pipe 6 . Among them, the rubber pipe clamp 5 is used to fix the two sections of pipes, and realize the internal switching between the spiral pipe and the straight pipe.

[0041] D...

Embodiment 3

[0048] Such as Figure 5 The heat management system of a lithium battery pack proposed by the present invention includes at least two liquid cooling plates (1) arranged opposite to each other, and each liquid cooling plate (1) is respectively provided with a water inlet (9) and a water outlet (10), the liquid cooling plate (1) adopts an aluminum plate, and a groove is opened on the aluminum plate, and a copper tube suitable for the injection of the tempering liquid is embedded in the groove, and aluminum and copper have high thermal conductivity.

[0049] The water inlet pipe (2) communicates with the water outlet pipe (18), and is installed in parallel on the connecting part of the opposite liquid cold plate (1), and is connected with the water inlet (9) and the water outlet (10) on the cold liquid plate, and Install the temperature control part of the lithium battery pack. In order to realize the insulation between the liquid cooling plate (1) and the battery module (8), a ...

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Abstract

The invention discloses a temperature control component, temperature control pipe and heat management system for a lithium battery pack. The temperature control component is a multi-layer pipe and issequentially provided with an internal water pipe, a heat-conducting filler, a PTC heating panel, a glue filler and a packaging housing from inside to outside; and a PTC heating control panel is arranged between the PTC heating panel and the packaging housing. The heat management system comprises at least two or more oppositely arranged liquid cooling plates; each liquid cooling plate is providedwith a water inlet and a water outlet separately; a water inlet pipe and a water outlet pipe communicate with each other, are arranged on connection parts of the oppositely arranged liquid cooling plates in parallel and are connected with corresponding water inlets and water outlets in the liquid cooling plates; and the temperature control component for the lithium battery pack is arranged on thewater inlet pipe. According to the temperature control component, the temperature control pipe and the heat management system for the lithium battery pack, the temperature in the lithium battery packcan be effectively controlled, the temperature uniformity of battery units at different positions in the lithium battery pack is achieved and the service life of the lithium battery pack is prolonged.

Description

technical field [0001] The invention belongs to the technical field of power lithium batteries for new energy electric vehicles, and more specifically relates to lithium battery pack temperature control components, temperature control pipelines and thermal management systems. Background technique [0002] The continuous growth of automobile production makes the earth need to face more and more serious problems of air pollution and energy consumption. How to reduce the damage to the environment such as vehicle exhaust emissions, the automotive industry around the world has been focusing on the direction of new energy electric vehicles, and has established corresponding research institutions and enterprise research centers. In the direction of new energy electric vehicles, power lithium batteries have become one of the core components of the first research. [0003] During the use of electric vehicles equipped with power lithium battery systems, due to the need for frequent h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/617H01M10/63H01M10/6556H01M10/6568H01M10/6571
CPCH01M10/613H01M10/615H01M10/617H01M10/63H01M10/6556H01M10/6568H01M10/6571H01M2220/20Y02E60/10
Inventor 孙飞伍芝英
Owner 苏州正力新能源科技有限公司
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