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Lithium ion power battery system air duct with good NVH effect

A power battery, lithium ion technology, applied in the ss field, can solve the problem of reducing the fan of the air-cooled cooling system, and achieve the effect of reducing noise value, strong chemical stability, and increasing sound absorption surface area

Inactive Publication Date: 2016-04-20
SHANGHAI AEROSPACE POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is to reduce the noise problem caused by the fan of the air-cooled heat dissipation system, reduce the probability of low-frequency noise resonance in the whole vehicle, and enhance the comfort of passengers

Method used

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  • Lithium ion power battery system air duct with good NVH effect
  • Lithium ion power battery system air duct with good NVH effect

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Embodiment Construction

[0022] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] see figure 1 , is a lithium-ion power battery system air duct with good NVH effect, the air duct contains:

[0024] The air duct main body 1 is used for the circulation of cooling air; the end of the air duct main body 1 is also provided with an air outlet 11;

[0025] The fan 2 fixedly arranged in the air duct main body 1 (for the structure of the fan, see figure 2 ), the cooling air is discharged from the air outlet 11 under the action of the fan 2; and

[0026] The sound-absorbing layer 3 attached to the inner cavity wall of the air duct main body 1 is made of sound-absorbing material, and the sound-absorbing material is selected from foamed plastics (preferably urea-formaldehyde foamed plastics), industrial felt, foamed glass, glass wool , slag wool, asphalt slag wool, or a mixture of any one or more.

[0027] Since the sound...

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Abstract

The invention discloses a lithium ion power battery system air duct with good NVH (Noise, Vibration and Harshness) effect. The air duct comprises: an air duct main body, the end of which is provided with an air outlet; a fan that is fixedly disposed in the air duct main body and enables the discharge of heat dissipation air out of the air outlet; and a noise reduction layer that is attached to the inner cavity wall of the air duct main body and is made of a sound absorption material. The air duct structure provided by the invention can effectively absorb the noise released by the fan during heat dissipation of an air cooling system, reduce the noise value and ensure the comfort requirements of passengers, and also has the advantages of simple structure, low cost, environmental friendliness, convenient operation, and easy assembly and disassembly and replacement.

Description

technical field [0001] The invention belongs to the field of lithium-ion power batteries, and relates to the NVH (referring to noise, vibration, and acoustic roughness, namely Noise, Vibration, Harshness, hereinafter referred to as NVH) of a lithium-ion power battery system with a forced air-cooled heat dissipation system, especially The device for processing the noise caused by the fan cooling process of the lithium-ion power battery system, specifically, involves a lithium-ion power battery system air duct with good NVH effect. Background technique [0002] With the deterioration of the environment and the shortage of energy, new energy vehicles have broad prospects due to their advantages of environmental friendliness and sustainable development. As the core of new energy vehicles, power batteries are the core link in the new energy vehicle industry chain. When the power battery is charged and discharged at a high current, more heat will be accumulated, and forced air co...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/625H01M10/6556H01M10/6563F16L9/21F16L43/00F16L55/033
CPCF16L9/003F16L9/12F16L9/21F16L43/008F16L55/0336
Inventor 李秋华侯敏刘思曹辉王东
Owner SHANGHAI AEROSPACE POWER TECH
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