Novel lithium ion battery heat dissipation device with vortex generator

A lithium-ion battery, heat sink technology, applied in secondary batteries, electrochemical generators, circuits, etc., can solve the problems of uneven overall performance and consistency of power batteries, internal temperature damage, explosions, etc., to achieve structural Simple, reduced reflow strength, enhanced heat dissipation effect

Pending Publication Date: 2021-08-27
NANCHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Under long-term operating conditions, the overall performance and consistency of the power battery pack will be damaged by the uneven internal temperature of the battery, and even cause explosions, fires, etc.

Method used

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  • Novel lithium ion battery heat dissipation device with vortex generator
  • Novel lithium ion battery heat dissipation device with vortex generator
  • Novel lithium ion battery heat dissipation device with vortex generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Example: see Figure 1-Figure 6 .

[0027] Such as Figure 1-Figure 2 As shown, a novel lithium-ion battery cooling device with a vortex generator includes a vortex generator liquid cooling device 30 and a lithium battery 10 placed on the vortex generator liquid cooling device 30, and the vortex generator liquid cooling device 30 It includes a liquid cooling box 31, a vortex generator 32, a partition 33, and a top cover 20 of the liquid cooling box. The two pairs of sides of the liquid cooling box 31 are respectively provided with a cooling liquid inlet 34 and a cooling liquid outlet 35. The partition 33 Set on the central axis inside the liquid cooling box 31, the same number of vortex generators 32 are provided on both sides of the partition plate 33, and the top cover 20 of the liquid cooling box has multiple rows of battery display holes 21, each battery display A lithium battery 10 is correspondingly placed in the position hole 21 .

[0028] Such as image 3 As...

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PUM

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Abstract

The present invention provides a novel lithium ion battery heat dissipation device with a vortex generator. The device comprises a vortex generator liquid cooling device and a lithium battery pack above the vortex generator liquid cooling device, the vortex generator liquid cooling device comprises a liquid cooling box, the vortex generator, a partition plate and a liquid cooling box top cover, and a cooling liquid inlet and a cooling liquid outlet are formed in the two opposite side faces of the liquid cooling box respectively. The partition plate is arranged on the central axis in the liquid cooling box, vortex generators with the same number are arranged on the two sides of the partition plate, a plurality of rows of battery position displaying holes are formed in a top cover of the liquid cooling box, and one lithium battery is correspondingly placed in each battery position displaying hole. According to the device, center jet flow generated when cooling liquid passes through the punched holes in the vortex generator is utilized to disperse a backflow area behind the rectangular wings of the vortex generator, the backflow strength of the cooling liquid is greatly weakened, the heat dissipation effect can be enhanced, the flowing resistance of the cooling liquid can be reduced, while efficient heat dissipation is achieved, the temperature consistency of the lithium batteries in the battery pack is ensured.

Description

technical field [0001] The invention relates to the technical field of battery thermal management, in particular to a novel lithium-ion battery cooling device with a vortex generator. Background technique [0002] The power system is the main innovation point of energy-saving and new energy vehicles, and new energy power is developed on the basis of improving traditional power. As the core power component of hybrid and electric vehicles, power batteries play a vital role in the performance of new energy vehicles. At present, the factors affecting the development of power battery technology are: low battery cycle life, low utilization rate, insufficient heat dissipation capacity and low safety. The battery technology itself has certain limitations. In the face of this dilemma, how to control the temperature of the battery within a safe range and how to improve the utilization of the battery is very important. Chemical reactions are temperature dependent, so battery temperat...

Claims

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Application Information

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IPC IPC(8): H01M10/6568H01M10/613H01M10/643H01M10/6556H01M10/625
CPCH01M10/613H01M10/625H01M10/643H01M10/6556H01M10/6568Y02E60/10
Inventor 张莹肖刚李培生徐猛高焱唐兆璇卢杰曾琦刘遥
Owner NANCHANG UNIV
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