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Battery thermal management system and control method thereof

A technology of battery thermal management and control method, which is applied in the field of battery thermal management system and its control, which can solve problems such as inability to cope with rapid temperature changes and battery stack damage, and achieve the effects of reducing energy consumption, improving reliability, and increasing heating speed

Active Publication Date: 2019-08-30
苏州纳尔森能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Embodiments of the present invention provide a battery thermal management system and its control method, to at least solve the technical problem in the related art that the battery management system cannot cope with rapid changes in temperature, resulting in damage to the battery stack

Method used

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  • Battery thermal management system and control method thereof
  • Battery thermal management system and control method thereof
  • Battery thermal management system and control method thereof

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Embodiment Construction

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part 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 in the art without making creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a battery thermal management system and a control method thereof. The system comprises a medium-temperature heat storage unit, a first high-temperature heat storage unit and atwo-phase circulation unit, wherein the medium-temperature heat storage unit stores the heat generated by a battery stack by using a first heat storage material and transmits the stored heat to the battery stack when the environmental temperature is detected to be lower than a first preset temperature; the first high-temperature heat storage unit is connected with the medium-temperature heat storage unit and stores the heat generated by the battery stack by using a second heat storage material; and the two-phase circulation unit is connected with the medium-temperature heat storage unit and the first high-temperature heat storage unit and transmits the heat stored by the first high-temperature heat storage unit to the medium-temperature heat storage unit when the temperature in a medium-temperature heat storage device of the medium-temperature heat storage unit is lower than the phase change temperature of the first heat storage material. The battery thermal management system solves atechnical problem that the battery management system in the related art cannot cope with the rapid change of temperature and results in the damage of the battery stack.

Description

technical field [0001] The present invention relates to the technical field of power control, in particular to a battery thermal management system and a control method thereof. Background technique [0002] In related technologies, when realizing heat conversion, it is often necessary to use air-cooled heat exchangers or cooling fans for temperature regulation. figure 1 is a schematic diagram of an optional fuel cell engine system in the prior art, such as figure 1 As shown, the fuel cell system includes: a fuel cell stack 101 (the core component of the engine, a place for converting chemical energy and electric energy), a hydrogen supply subsystem, which supplies the fuel required for the fuel cell reaction, and the main components include: a high-pressure hydrogen cylinder 108, a primary Pressure reducing valve 109, secondary pressure reducing valve 110, hydrogen circulation pump 111, hydrogen purge valve 112, pressure sensor P1, pressure sensor P3, temperature sensor T1;...

Claims

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Application Information

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IPC IPC(8): H01M8/04007H01M8/04029H01M8/04223H01M8/04225H01M8/04302H01M8/04701H01M8/2465
CPCH01M8/04007H01M8/04029H01M8/04225H01M8/04253H01M8/04268H01M8/04302H01M8/04701H01M8/2465Y02E60/50
Inventor 王泽宇莫艳桃宋婷婷
Owner 苏州纳尔森能源科技有限公司
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