Noise reduction foaming material

Abstract

The utility model relates to the technical field of noise reduction materials, in particular to a noise reduction foaming material. According to the technical scheme, the noise reduction foaming material comprises a foaming material body, the foaming material body is formed by bonding and compounding a first noise reduction part and a second noise reduction part, a supporting piece embedded in the foaming material body is arranged at the protruding position of the foaming material body and a vehicle plate piece, the supporting piece comprises a rubber sleeve and a metal cylinder, and noise reduction threads are formed in the metal cylinder. The foaming material main body is formed by the first noise reduction part and the second noise reduction part, the first noise reduction part is made of a PU foaming cotton material and can better adapt to the outside of the vehicle, the second noise reduction part faces the inside of the vehicle body, the noise reduction effect is better, and therefore noise in the space in the vehicle can be better reduced, and the service life of the vehicle is prolonged. And through the arrangement of the supporting piece, the foaming material body and the protruding position of the automobile body plate can be effectively connected, and meanwhile the noise reduction effect is taken into account while the supporting performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction materials, in particular to a noise reduction foaming material. Background Art

[0002] The baffle made of foaming material is widely used in automobile sheet metal parts, mainly playing the function of vibration reduction and noise reduction. However, the existing vehicle foaming materials are basically made of the same material, without considering that the body panels are divided into parts facing outside the vehicle and parts facing inside the vehicle. The noise reduction environments faced by these two parts are different, and the noise reduction environment in contact with the protrusions of the body panels is also different. Therefore, a noise reduction foaming material is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to propose a noise reduction foaming material aiming at the problems existing in the background art.

[0004] The technical solution of the utility model: a noise reduction foaming material, including a foaming material main body, the foaming material main body is bonded and compounded by a first noise reduction part and a second noise reduction part, a support member embedded in the foaming material main body is arranged between the foaming material main body and the protrusion of the vehicle board, the support member includes a rubber sleeve and a metal cylinder, and a silencing thread is arranged in the metal cylinder.

[0005] Preferably, the first noise reduction part is made of PU foaming cotton material, the second noise reduction part is made of EVA foaming material, the first noise reduction part is arranged close to the outside of the vehicle body, and the second noise reduction part is arranged close to the inside of the vehicle body.

[0006] Preferably, a noise reduction hole is arranged between the first noise reduction part and the second noise reduction part, and the noise reduction hole is filled with fiber filler.

[0007] Compared with the existing technology, the beneficial effect of the utility model is: the foaming material main body is formed by the first noise reduction part and the second noise reduction part. The first noise reduction part is made of PU foaming cotton material and is located on the part facing outside the vehicle. By arranging the first noise reduction part at this position, it can better adapt. The second noise reduction part is used facing the inside of the vehicle body, and its noise reduction effect is better, so that the noise in the vehicle interior space can be better reduced. And through the arrangement of the support member, the connection between the foaming material main body and the protrusion of the vehicle body panel and the support for the foaming material main body can be effectively carried out. The support member is composed of a rubber sleeve and a metal cylinder, which takes into account the noise reduction effect while improving the support performance at the same time. Moreover, the silencing thread inside the metal cylinder forms a silencing channel, which can greatly reduce the noise. Description of the Drawings

[0008] Figure 1 It is a structural schematic diagram of a noise reduction foaming material proposed by the utility model;

[0009] Figure 2 Structural schematic diagram of a noise reduction foaming material support proposed by the present utility model;

[0010] Figure 3 Cross-sectional structural schematic diagram of a noise reduction foaming material proposed by the present utility model.

[0011] Reference numerals: 1, main body of foaming material; 2, support; 3, first noise reduction part; 4, second noise reduction part; 5, noise reduction holes; 6, fiber filler; 21, rubber sleeve; 22, metal cylinder; 23, sound absorption thread. Specific implementation manner

[0012] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0013] Referring to the attached Figures 1-3 , a noise reduction foaming material includes a main body of foaming material 1. The main body of foaming material 1 is bonded and compounded by a first noise reduction part 3 and a second noise reduction part 4. The first noise reduction part 3 is made of PU foamed cotton material, and the second noise reduction part 4 is made of EVA foaming material. The first noise reduction part 3 is arranged close to the outside of the vehicle body, and the second noise reduction part 4 is arranged close to the inside of the vehicle body. The main body of foaming material 1 is formed by the first noise reduction part 3 and the second noise reduction part 4. The first noise reduction part 3 is made of PU foamed cotton material, and the second noise reduction part 4 is made of EVA foaming material. As Figure 3 shown, the first noise reduction part 3 is arranged close to the outside of the vehicle body. Because its hardness and durability are better, and the outside of the vehicle body is the first direction of contacting the external environment, so it is the first direction of noise reduction. By arranging the first noise reduction part 3 at this position, it can better adapt. The use of EVA foaming material is towards the inside of the vehicle body, and its noise reduction effect is better, so as to better reduce the noise in the vehicle interior space.

[0014] It should be noted that, in this embodiment, noise reduction holes 5 are provided between the first noise reduction part 3 and the second noise reduction part 4, and fiber fillers 6 are filled in the noise reduction holes 5. Through the setting of the noise reduction holes 5, the functions of sound insulation, noise reduction and damping performance are achieved, and filling the fiber fillers 6 can further improve the noise reduction effect.

[0015] It should also be noted that a support member 2 embedded in the foam material body 1 is provided between the foam material body 1 and the raised part of the vehicle panel, and the support member 2 includes a rubber sleeve 21 and a metal cylinder 22, and a silencer thread 23 is provided in the metal cylinder 22. Through the setting of the support member 2, the foam material body 1 and the raised part of the vehicle body panel can be effectively connected and the foam material body 1 can be supported. The support member 2 includes a rubber sleeve 21 and a metal cylinder 22, which improves the support performance while taking into account the noise reduction effect. Moreover, the silencer thread 23 inside the metal cylinder 22 forms a silencer channel, which can greatly reduce the noise.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A noise reduction foam material, comprising a foam material body (1), characterized in that: The foam material body (1) is formed by bonding and compounding a first noise reduction part (3) and a second noise reduction part (4); a support member (2) embedded in the foam material body (1) is provided at a protrusion between the foam material body (1) and the vehicle panel; the support member (2) comprises a rubber sleeve (21) and a metal cylinder (22); a sound-absorbing thread (23) is provided in the metal cylinder (22).

2. A noise reduction foam material according to claim 1, characterized in that: The first noise reduction portion (3) is made of PU foam material, and the second noise reduction portion (4) is made of EVA foam material. The first noise reduction portion (3) is arranged close to the outside of the vehicle body, and the second noise reduction portion (4) is arranged close to the inside of the vehicle body.

3. A noise reduction foam material according to claim 2, characterized in that: A noise reduction hole (5) is provided between the first noise reduction portion (3) and the second noise reduction portion (4), and the noise reduction hole (5) is filled with fiber filler (6).

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