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Noise reduction air duct of an automobile air conditioner

An automotive air-conditioning and noise reduction technology, which is applied to vehicle parts, air handling equipment, heating/cooling equipment, etc., can solve the problems of complex structure of noise reduction air ducts, unfavorable processing and installation, mass production, and high manufacturing costs, and achieve reduction Local resistance, good shunting and guiding effect, and the effect of reducing aerodynamic noise

Pending Publication Date: 2018-12-07
SUZHOU JIANGNAN AEROSPACE MECHANICAL& ELECTRICAL IND CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, the present invention provides a noise-reducing air duct for automobile air conditioners, which can solve the problems of complex structure, high manufacturing cost, unfavorable processing, installation and mass production existing in the existing noise-reducing air duct

Method used

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  • Noise reduction air duct of an automobile air conditioner
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Embodiment Construction

[0029] See Figure 1 ~ Figure 4 , the noise-reducing air duct of the automobile air conditioner of the present invention comprises a noise-reducing air-duct body. The Z-shaped elbow section 30 of each corner portion 31, 32, the bottom surface of the Z-shaped elbow section 30 and the straight pipe section 40 are provided with a grid-type air outlet 50, and the air inlet section 10 is docked with the air outlet of the automobile air conditioner. The two ends of the curved pipe section 30 are respectively connected with the transition pipe section 20 and the straight pipe section 40, wherein the transition pipe section 20 has a flared shape with a variable cross-section, and the small mouth end of the transition pipe section 20 is connected with the air inlet section 10, and the large mouth end is connected with the Z-shaped bend. The pipe section 30 is connected.

[0030] The two corners 31, 32 of the Z-shaped pipe section 30 are arc-shaped, and two arc-shaped deflectors are re...

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Abstract

The invention provides a noise reduction air duct of an automobile air conditioner, which can solve the problems that the existing noise reduction air duct has complex structure, high manufacturing cost, and is not conducive to processing, installation and mass production. The invention aims at reducing the aerodynamic noise by reducing the airflow velocity in the air duct and avoiding the generation of the vortex. the noise reduction air duct comprises a noise reduction air duct body, the noise reduction air duct body comprises an air inlet section, a transition pipe section, a straight pipesection and a Z-shaped elbow section provided with two corners, The bottom surfaces of the Z-shaped elbow section and the straight pipe section are provided with grille-type air outlets, the air inletsection is butted with the air outlet of the automobile air conditioner, the two ends of the Z-shaped elbow pipe section are respectively connected with the transition pipe section and the straight pipe section, the transition pipe section is in the shape of a flared opening with a variable section, the small opening end of the transition pipe section is connected with the air inlet section, andthe large opening end is connected with the Z-shaped elbow pipe section.

Description

technical field [0001] The invention relates to the technical field of automobile air conditioners, in particular to a noise reduction air duct for automobile air conditioners. Background technique [0002] In recent years, with the improvement of automobile sealing and the continuous reduction of overall vibration and noise, the noise outside the car has been significantly reduced. Since the air duct of the car is often installed and connected with the car interior, the air duct pipe of the car Air noise caused by internal turbulence has gradually become the main noise source of automobiles. The aerodynamic noise in the air-conditioning duct is mainly affected by the air flow velocity and eddy current. In order to prevent aerodynamic noise and tuyere noise, the air flow velocity in the air duct is generally 5-8m / s, and the air outlet speed is 3-5m / s. Due to the large local resistance at the sudden cross-section pipes, baffles, corners, tuyeres and other obstacles in the ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00
CPCB60H1/00564B60H2001/006
Inventor 隋元杰王伟利陈言东张翼飞陈威王良模
Owner SUZHOU JIANGNAN AEROSPACE MECHANICAL& ELECTRICAL IND CO LTD
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