Battery pack temperature control system and battery pack temperature control method

A temperature control system and temperature control technology, applied in battery temperature control, secondary batteries, circuits, etc., can solve the problem that the heat dissipation channel occupies a large space, the effective contact area between the single battery and the heat dissipation channel cannot be guaranteed, and the heat conduction efficiency is not ideal, etc. question

CN104900940AInactive Publication Date: 2015-09-09张哲群
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a battery pack temperature control system, which comprises a heat conduction and insulation part, a heat conduction part and a temperature control part, wherein the heat conduction and insulation part is used for being filled among monomers in a battery pack to implement the conduction of the heat of the battery pack; the monomers in the battery pack are arranged according to a predetermined arrangement rule; the temperature control part is connected with the heat conduction part, and is used for receiving temperature signals acquired by temperature sensors, analyzing the temperature signals according to a preset program to obtain an analysis result, choosing a control mode corresponding to the analysis result and controlling the operating state of the heat conduction part according to a control signal outputted by the control mode to control the temperature of the battery pack. The system can increase the efficiency, safety and cycle life of the battery pack. The invention also discloses a battery pack temperature control method.
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Description

technical field

[0001] The invention relates to the field of lithium batteries, in particular to a battery pack temperature control system and method. Background technique

[0002] Batteries in electric vehicles, especially lithium batteries (including lithium cobaltate, lithium manganate, lithium iron phosphate, titanium lithium, ternary lithium batteries, etc.) have been used on a large scale, such as notebook computers, mobile phones, wind power, submarines, Electric bikes, electric cars, and more. Although lithium batteries have the advantages of high energy density, high specific power, and long cycle life, they also have defects such as long-term charging and discharging, which generate a lot of heat, cannot be charged at low temperatures, and are easy to burn when exposed to water. , For example, the battery pack used in electric vehicles is composed of hundreds of single cells. During operation, uneven heat accumulation will occur in the battery pack, which further ...

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Embodiment Construction

[0033] The core of the present invention is to provide a battery pack temperature control system, which can make the temperature of each single battery in the battery pack balanced and controllable through the heat-conducting insulating parts, heat-conducting parts and temperature control parts, so as to expand the use environment of the battery pack and improve the temperature of the battery pack. Group efficiency, safety and cycle life.

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill i...