A lithium battery pack thermal management system and management method thereof

A management system and battery pack technology, applied in the lithium battery pack thermal management system and its management field, can solve the problems of poor battery pack stability, unbalanced thermal management effect, and inability to intercept and stop movement in time, so as to achieve stable heat storage and ensure The effect of the stabilizing effect

Active Publication Date: 2022-03-15
深圳市赛航科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes a thermal management structure of a single module, which has a simple structure, simple control principle, high integration operability, and overcomes the unbalanced overall thermal management effect due to the battery pack structure and space constraints, which affects the performance of the battery. Problem", the thermal management system ignores the setting of the relevant interception protection structure when the battery pack is displaced as a whole, resulting in the battery pack being unable to intercept and stop movement in time when the battery pack is affected by the vibration of the vehicle body and causing autonomous displacement, resulting in poor stability of the battery pack;

Method used

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  • A lithium battery pack thermal management system and management method thereof
  • A lithium battery pack thermal management system and management method thereof
  • A lithium battery pack thermal management system and management method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0046] see Figure 1-Figure 3 , an embodiment provided by the present invention: a lithium battery pack thermal management system and its management method, including a battery pack main body 1, a heat treatment plate 4 is installed on the inner wall of the battery pack main body 1, and a storage tank is arranged inside the battery pack main body 1. A heat chamber 2, and the heat storage chamber 2 is located outside the heat treatment plate 4;

[0047] The inner wall of the battery pack main body 1 is installed with an air intake pipe 204 arranged up and down, and the tail end of the air intake pipe 204 extends into the interior of the heat storage chamber 2, and the front and back of the battery pack main body 1 are installed with an exhaust pipe 201, and The tail end of the exhaust pipe 201 extends into the interior of the heat storage chamber 2, an electronic thermometer 202 is installed on the surface of the tail end of the exhaust pipe 201, a pressure sensor 203 is instal...

Embodiment 2

[0052] see figure 1 and Figure 4 , an embodiment provided by the present invention: a lithium battery pack thermal management system and its management method, including a protective box 3, the four sets of outer surfaces of the battery pack main body 1 are equipped with a protective box 3, the protective box 3 No. 1 speed sensor 301 and No. 2 speed sensor 303 are installed on the top of the symmetrically arranged, and the surface of No. 2 speed sensor 303 is connected with a detection wire probe, and a No. 1 electric telescopic rod is installed on the inner wall of the protective box body 3 close to the battery pack main body 1 304, the tail end of the No. 1 electric telescopic rod 304 is equipped with an extension rod 302, and the surface of the extension rod 302 is sleeved with a rubber ferrule, and the No. 1 electric telescopic rod 304 is electrically connected to the No. connect.

[0053] Specifically, the No. 1 speed sensor 301 can detect the movement speed of the bat...

Embodiment 3

[0057] see figure 1 and Figure 5 , an embodiment provided by the present invention: a lithium battery pack thermal management system and its management method, including a battery pack main body 1, and the top of the outer walls on both sides of the heat treatment plate 4 are equipped with No. 2 electric telescopic rods 403. A temperature sensor 404 is installed at the tail end of the telescopic rod 403. Two sets of servo motors 406 arranged in parallel are installed on the inner wall of the heat treatment plate 4 close to the battery pack main body 1. A fan 401 is installed at the output end of the servo motor 406. The bottom of the heat treatment plate 4 An electric heating network 402 and a screen 405 are mounted on the wall, and the screen 405 is located in front of the electric heating network 402 , and the temperature sensor 404 is electrically connected to the servo motor 406 .

[0058] Specifically, through the forward rotation and reverse rotation of the servo motor...

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Abstract

The invention discloses a lithium battery pack heat management system and a management method thereof. The four sets of outer surfaces of the pack main body are all equipped with protective boxes, and the outer surfaces of both sides of the battery pack main body are equipped with dehumidification boxes, and the dehumidification boxes are located on both sides of the protective box. The present invention is provided with a heat storage cavity, an air intake pipe and a No. 1 electronic valve. After the No. 1 electronic valve on the surface of the intake pipe is activated, the hot air or heat storage inside the battery pack body can be blown or sucked by the fan. The hot air inside the chamber is exchanged to realize the cooling and preheating and heat preservation operations inside the main body of the battery pack. When the storage space in the heat storage chamber is insufficient, the pressure sensor can activate the No. 1 electronic valve on the surface of the exhaust pipe to store heat immediately. The excess hot air inside the chamber can be discharged in one direction, so as to ensure the stability of heat storage inside the heat storage chamber.

Description

technical field [0001] The invention relates to the technical field of battery heat management, in particular to a lithium battery pack heat management system and a management method thereof. Background technique [0002] Lithium battery pack is a kind of combined battery. It is a product formed by combining battery cells, battery protection boards and other components through the PACK process. It can be combined in a variety of packaging according to the actual needs of customers, and has a strong market demand. It has become the main energy supply part of electric vehicles, but since the heat generated by the battery pack will affect the normal service life of the lithium battery, it is necessary to perform appropriate thermal management operations to ensure its service life. [0003] The defects of existing battery thermal management are: [0004] 1. The comparative document CN102832425A discloses a thermal management system and a thermal management method for an electri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/244H01M50/249H01M50/258H01M50/262H01M50/271H01M10/48H01M10/613H01M10/615H01M10/617H01M10/625H01M10/63H01M10/635H01M10/6563H01M10/6571F26B21/00F26B25/00
CPCH01M50/244H01M50/249H01M50/262H01M50/271H01M50/258H01M10/48H01M10/486H01M10/488H01M10/613H01M10/615H01M10/625H01M10/63H01M10/635H01M10/6563H01M10/6571H01M10/617F26B21/001F26B25/009Y02E60/10
Inventor 戴洪雨包丽
Owner 深圳市赛航科技有限公司
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