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Testing device for automobile front windshield

A front windshield, testing device technology, applied in the direction of using sound waves/ultrasonic waves/infrasonic waves to analyze solids, instruments, analysis materials, etc.

Active Publication Date: 2018-07-27
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The soundproof front windshield has a significant effect on improving the NVH performance of the vehicle. Under the premise of pursuing vehicle comfort, the application of the soundproof front windshield will inevitably become more and more common. If the sound insulation effect of the soundproof front windshield is low, it will affect the whole vehicle. What is the contribution value of NVH performance, there is no corresponding test method

Method used

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  • Testing device for automobile front windshield
  • Testing device for automobile front windshield
  • Testing device for automobile front windshield

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Embodiment Construction

[0031] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] Please refer to Figure 1 to Figure 4 , figure 1 is a structural schematic diagram of the present invention; figure 2 It is a partial sectional view of the present invention along the horizontal plane; image 3 is a partial sectional view of the present invention along a vertical plane, Figure 4 It is a partial axonometric drawing of the present invention; the specific embodiment of the present invention proposes a kind of automobile front windshield testing device, wherein, comprises: detection room 1, sound insulation wall 2, loudspeaker 7, signal generator, microphone 9, sound intensity Probe 10 and sound intensity processing unit 11;

[0033] The sound insulation wall 2 is arranged in the detection chamber 1, and the detection chamber 1 is divided into a sound source chamber ...

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Abstract

The invention discloses a testing device for an automobile front windshield. The testing device comprises a detection chamber, a sound insulation wall, a loudspeaker, a signal generator, a sound transmitting device, a sound intensity probe and a sound intensity processing unit. The sound insulation wall is arranged in the detection chamber and is used for separating the detection chamber into a sound source chamber and a receiving chamber; the sound insulation wall is provided with a detection hole for placing a test sample; the loudspeaker is arranged in the sound source chamber; the signal generator is electrically connected with the loudspeaker; the sound transmitting device is arranged in the sound source chamber; the sound intensity probe is arranged in the receiving chamber and is located at an opening of the detection hole; the sound transmitting device and the sound intensity probe are electrically connected with the sound intensity processing unit; the sound intensity processing unit is used for obtaining detection results of the sound transmitting device and the sound intensity probe and calculating sound transmission loss. According to the testing device disclosed by theinvention, the sound transmission loss can be calculated according to sound intensity detected by the sound source chamber and the receiving chamber, so that a sound insulation effect of a test sample is obtained.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile front windshield testing device. Background technique [0002] With the continuous development of science and technology, cars are becoming more and more popular, and people have higher and higher requirements for car quality. Among them, the sound insulation effect is one of the important indicators that affect the quality of cars. [0003] The soundproof front windshield has a significant effect on improving the NVH performance of the vehicle. Under the premise of pursuing vehicle comfort, the application of the soundproof front windshield will inevitably become more and more common. If the sound insulation effect of the soundproof front windshield is low, it will affect the whole vehicle. There is no corresponding test method for the contribution value of NVH performance. [0004] How to test the sound insulation effect of the soundproof front windshield is ...

Claims

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Application Information

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IPC IPC(8): G01N29/11
CPCG01N29/11G01N2291/015G01N2291/0232
Inventor 赵海龙周大华陈涛卫刚陈宗光
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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