Self-adaptive thermal conductivity micro heat pipe array blade battery thermal management system and method

A technology of battery thermal management and micro-heat pipe, which is applied in the direction of secondary battery, battery temperature control, circuit, etc., can solve the problems of charge and discharge power decrease, internal resistance increase, affecting the discharge capacity and service life of blade batteries, etc., to reduce the temperature Fluctuation, small resistance, self-adaptive regulation of heat source temperature effect

Pending Publication Date: 2022-05-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the blade battery is charged and discharged in a low temperature environment, its internal resistance increases, and the charge and discharge power decreases significantly, which seriously affects the discharge capacity and service life of the blade battery.

Method used

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  • Self-adaptive thermal conductivity micro heat pipe array blade battery thermal management system and method
  • Self-adaptive thermal conductivity micro heat pipe array blade battery thermal management system and method
  • Self-adaptive thermal conductivity micro heat pipe array blade battery thermal management system and method

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Embodiment Construction

[0025] In order to better describe and understand the system structure and technical scheme of the present invention, the following embodiments of the present invention in conjunction with the accompanying drawings will be further described.

[0026] The present invention proposes an adaptive thermal conductivity microheor array blade battery thermal management system, such as Figure 1 Shown, comprising a blade battery pack 1, a microheat tube array 2 and a liquid cold plate 3. The blade battery pack 1 is composed of a plurality of blade batteries stacked in a rectangular arrangement, the blade battery pack 1 comprises at least two layers, each layer comprises at least one or more blade batteries. In an embodiment of the present invention, the blade battery pack 1 is arranged in the form of 5 layers of 3 pieces, a total of 15 blade batteries, the gap between the blade batteries of the same layer is filled with insulating thermal adhesive to reduce the contact thermal resistance, o...

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Abstract

The invention provides a self-adaptive thermal conductivity micro heat pipe array blade battery thermal management system and method, the system comprises a blade battery pack, a micro heat pipe array and a liquid cooling plate, the blade battery pack has a plurality of layers, and each layer comprises a plurality of blade batteries; the micro heat pipe arrays are uniformly inserted between blade battery layers at intervals, and condensation sections extend out of the blade battery pack to be attached to the liquid cooling plate; the micro heat pipe array is provided with a plurality of rectangular micro-channels which are arranged side by side and are not communicated with one another, and working medium steam and non-condensable gas are sealed in the rectangular micro-channels; the liquid cooling plate is in a snake-shaped design, two groups of cooling circulation loops are arranged on the same side, and the internal flow directions are always opposite. When the blade battery pack emits heat, the heat power input by the evaporation section is increased, the temperature and pressure of working medium steam in the heat pipe are increased, an elastic air plug formed by non-condensed gas is compressed, and the effective condensation length is increased. The blade battery can be kept in the optimal temperature range for a long time.

Description

Technical field [0001] The present invention relates to an adaptive thermal conductivity microheor array blade battery thermal management system and method, belonging to the field of battery thermal management technology. Background [0002] Blade battery is a new type of lithium iron phosphate battery developed on the basis of moduleless technology, and the single battery can be directly fixed in the battery pack to improve the packaging efficiency. In the traditional blade battery liquid cooling system, usually according to the temperature acquisition device feedback signal to control the speed of the cooling pump to achieve different cooling effects, but the control of the pump speed change has hysteresis, when the blade battery is in the instantaneous high-power charge and discharge working conditions will lead to insufficient cooling, the same, when the blade battery is in a low-power charge and discharge working condition will lead to excessive cooling, can not be the blade...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/63H01M10/6568H01M10/6569
CPCH01M10/613H01M10/63H01M10/6568H01M10/6569Y02E60/10
Inventor 魏名山刘悦闻丹聃
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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