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Sound insulation structure of engine cabin and passenger car using same

A technology for engine compartments and passenger cars, applied in vehicle components, transportation and packaging, etc., can solve the problems of poor sound insulation and noise reduction effects in engine compartments, and achieve the effects of improving sound insulation, reducing impact, and improving sound insulation

Pending Publication Date: 2018-05-11
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an engine compartment sound insulation structure to solve the technical problem of poor sound insulation and noise reduction effects in the engine compartment
[0006] Another object of the present invention is to provide a passenger car to solve the technical problem of poor sound insulation and noise reduction effect in the engine compartment of the passenger car

Method used

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  • Sound insulation structure of engine cabin and passenger car using same
  • Sound insulation structure of engine cabin and passenger car using same
  • Sound insulation structure of engine cabin and passenger car using same

Examples

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Embodiment Construction

[0027] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0028] The specific embodiment of passenger car of the present invention, as figure 2 As shown, the passenger car includes an engine compartment sound insulation structure 17, the engine compartment sound insulation structure 17 is arranged between the engine compartment 20 and the interior space 21, the engine compartment 20 is provided with an engine assembly 19, and the interior space 21 is provided with a seat 18 .

[0029] image 3 It is a partial structural schematic diagram of the engine compartment sound insulation structure 17, Figure 4 It is a structural schematic diagram of the engine compartment sound insulation structure 17 above the engine compartment 20, image 3 and Figure 4 Both are schematic cross-sectional views along the length direction of the passenger car. The engine compartment sound insulation structure 17 is provided wit...

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Abstract

The invention relates to a sound insulation structure of an engine cabin and a passenger car using the same. The sound insulation structure of the engine cabin comprises a floor layer and a sound absorbing layer, and a sound insulation layer is arranged between the floor layer and the sound absorbing layer; and the sound insulation layer is internally provided with a sound insulation cavity and / ora damping body. Compared with multiple sound insulation layers pasted in a traditional sound insulation structure, the cavity structure formed in the sound insulation layer can effectively reduce thenoise volume, the damping body arranged in the sound insulation layer can effectively attenuate the structural vibration noise transmitting to a floor by a vehicle body frame, and thus the sound insulation effect of the sound insulation structure of the engine cabin can be greatly improved through the arrangement.

Description

technical field [0001] The invention relates to the field of engine compartments, in particular to a sound insulation structure for an engine compartment and a passenger car using the structure. Background technique [0002] With the development of the bus industry, people have higher and higher requirements for the comfort of passenger cars. The noise in the car has become an important factor affecting the comfort of passengers. Controlling the noise in the car is not only the protection of passengers, but also the level of passenger car manufacturing. important manifestation. [0003] The engine is the main noise source of the passenger car, and various engine accessories arranged in the engine compartment, such as intake system, exhaust system, cooling fan, supercharger, air compressor, etc., are also the main noise source of the passenger car. Sound insulation and noise reduction control is particularly important. [0004] The traditional passenger car engine compartme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
CPCB60R13/0838B60R13/0884
Inventor 陈威董国超谢富科张博强江勇裴小燕
Owner ZHENGZHOU YUTONG BUS CO LTD
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