Sound insulation rubber block structure avoiding motion interference
A technology of motion interference and rubber blocks, which is applied in transportation, packaging, and vehicle parts, can solve the problems of single foaming direction of A-pillar cavity sealant blocks, affecting NVH performance of the car body, poor air tightness of the car body, etc., and achieve product performance Cost-effective, NVH-improved, simple process effect
Pending Publication Date: 2021-10-01
WUHU HAICHENG RUBBER & PLASTIC
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Problems solved by technology
[0003] The foaming direction of the existing automobile A-pillar cavity sealant block is single. For the large cavity of the upper and outer cavity of the A-pillar, it is necessary to avoid the mechanical movement interference of the sheet metal, and the interference part has to be cut off, which leads to poor airtightness of the upper body and affects The NVH performance of the car body, or the parts are installed on the side panel, which increases the manufacturing cost. Therefore, the present invention proposes a sound-insulating rubber block structure to avoid movement interference to solve the problems in the prior art
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device...
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The invention discloses a sound insulation rubber block structure avoiding motion interference, a movable metal plate is arranged on the outer side of an A column inner metal plate, a foaming bin is arranged between the A column inner metal plate and the movable metal plate, a mounting framework is arranged on the A column inner metal plate in the foaming bin, a first foaming groove is formed in one side of the mounting framework, a second foaming groove is formed in the other side of the mounting framework, first polystyrene foam is arranged in the first foaming groove, second polystyrene foam is arranged in the second foaming groove, a foaming groove is formed in the middle of the mounting framework, and main polystyrene foam is arranged in the foaming groove; according to the invention, the foaming expansion of the polystyrene foam is limited by the three groups of different foaming grooves, and the three groups of independent polystyrene foam structures are matched to realize multi-direction foaming plugging, so that the plugging of a motion interference cavity is realized, the product performance and the cost are well considered, the effect of improving the NVH can be achieved, and the effects of reducing the cost and simplifying the process can also be achieved.
Description
technical field [0001] The invention relates to the technical field of sound-insulating rubber blocks, in particular to a sound-insulating rubber block structure for avoiding movement interference. Background technique [0002] The sound-proof rubber block has a rubber plate that blocks sound transmission. The product is a porous structure with a small density. It is generally made of foam rubber and is used as a wall-shaped partition on various vehicles and buildings to play the role of sound insulation and noise reduction; [0003] The foaming direction of the existing automobile A-pillar cavity sealant block is single. For the large cavity of the upper and outer cavity of the A-pillar, it is necessary to avoid the mechanical movement interference of the sheet metal, and the interference part has to be cut off, which leads to poor airtightness of the upper body and affects The NVH performance of the vehicle body, or installing parts on the side wall outer panel will increa...
Claims
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Login to View More IPC IPC(8): B60R13/08
CPCB60R13/0846
Inventor谢宇丁健何园明
OwnerWUHU HAICHENG RUBBER & PLASTIC