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Performing sound insulation rubber block and mounting method thereof

A technology of pre-forming and sound-insulating glue, which is applied in transportation, packaging, and vehicle parts, etc. It can solve the problems of poor electrophoretic effect in the cavity, easy blocking of electrophoretic fluid, and falling into the cavity, etc., and achieves excellent sound insulation effect and easy installation The process is simple and the effect of consistency is guaranteed

Active Publication Date: 2014-02-05
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current sound-proof rubber block has the following problems: 1. It is easy to block the flow of electrophoretic fluid, resulting in poor electrophoresis effect in the cavity; Noise; 3. The heat-expandable sealing material is prone to sagging during the hot-melt process, which makes the thermal expansion process of the heat-expandable sealing material uncontrollable, resulting in poor sealing of the cavity; 4. Cannot be positioned accurately during installation, and it is easy to fall into the cavity Inside

Method used

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  • Performing sound insulation rubber block and mounting method thereof
  • Performing sound insulation rubber block and mounting method thereof
  • Performing sound insulation rubber block and mounting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1~5 As shown, the preformed sound-insulating rubber block of this embodiment includes a bracket body 1 made of toughened nylon material and a thermally expandable sealing material 2 made of EVA. The bracket body 1 is surrounded by a support groove 3 with the opening direction facing outward. The heat-expandable sealing material 2 is set in the support groove 3 ; the bracket body 1 is provided with a buckle 4 for connecting with the body sheet metal, and the buckle 4 protrudes from the outside of the bracket body 1 .

[0028] The upper groove wall of the support groove 3 is provided with several notches 5 , and the thermal expansion sealing material 2 is provided with notches 5 at positions corresponding to the notches 5 of the groove wall. In this way, the electrophoretic liquid can smoothly flow along the gap 5 of the groove wall above the support groove 3, avoiding the accumulation of the electrophoretic liquid, and improving the electrophoretic effect...

Embodiment 2

[0036] Such as Figure 9 As shown, different from Embodiment 1, the top surface of the bracket body 1 of this embodiment is covered with a thermally expandable sealing material layer 7 that is flush with the groove wall above the support groove 3, and the bracket body 1 and the thermally expandable sealing material layer 7 There are several through holes 8 with the same position. In this way, the electrophoretic liquid can flow freely along the through hole 8, which improves the electrophoretic effect; the heat-expandable sealing material layer 7 not only closes the through hole 8 after being heated and expanded, but also further improves the sealing and sound insulation effects.

[0037] Other structures and installation methods of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

[0038]

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Abstract

The object of the invention is to provide a practical performing sound insulation rubber block and a mounting method thereof. The performing sound insulation rubber block comprises a bracket and a thermal expansion sealing material, wherein the bracket is provided with a supporting groove with an outward opening in a surrounding mode, the thermal expansion sealing material is disposed in the supporting groove, and the bracket is provided with a fastener which is used for being connected with the metal sheet of a vehicle and protrudes outward the bracket. The supporting groove can limit the flow direction of the thermal expansion sealing material in the thermal expansion, achieves simultaneous outward foaming expansion on the same plane of the thermal expansion sealing material for avoiding sagging and blocks the entire cross section of a cavity, so that noise transmitted through the cavity of the vehicle can be prevented and the NVH (Noise Vibration and Harshness) performance of the vehicle can be improved. The performing sound insulation rubber block is simple in structure, low in cost, simple in mounting process and good in sound insulation effects and can locate the sound insulation rubber block accurately.

Description

technical field [0001] The invention belongs to the technical field of sound insulation for automobile cavities, especially for automobile cavities requiring some special arrangements, and specifically relates to a preformed soundproof rubber block and an installation method thereof. Background technique [0002] With the continuous improvement of people's environmental awareness, the problem of vehicle noise has attracted great attention from the whole society. Among them, exterior noise control must be based on increasingly stringent environmental regulations and standards, while interior noise control is committed to meeting the increasingly stringent requirements of users for interior acoustic comfort. Therefore, improving the level of vehicle noise control has become a new focus of competition and technology development direction. In this context, the NVH (Noise / Vibration / Harshness) performance of vehicles is gradually evolving into an important design indicator, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
Inventor 席艳秋高发华
Owner CHERY AUTOMOBILE CO LTD
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