CN209366065U - A kind of automobile trunk wheel arch lightweight noise-reducing components - Google Patents

Abstract

The utility model relates to technical field of automobile accessories, and a kind of automobile trunk wheel arch lightweight noise-reducing components are disclosed, including shell, the left end of shell are fixedly installed with boot side wall, the bottom of shell is fixedly installed with boot bottom plate, and the inner wall of shell is fixedly installed with outer expanded rubber item.Pass through interior expanded rubber item, make to be formed with interior cushion chamber between two neighboring interior expanded rubber item, pass through interior expanded rubber item and interior cushion chamber, noise by wheel arch shell transmitting is tentatively weakened, pass through sound-proof material, reflect noise repeatedly in the gap inside sound-proof material, further consume the energy of noise, pass through outer expanded rubber item, make to be formed with outer cushion chamber between two neighboring outer expanded rubber item, pass through outer expanded rubber item and outer cushion chamber, noise is weakened again, noise by effectively weakening three times, it is effectively reduced and interior noise is transmitted to by wheel arch shell, improve environment inside car, improve the Experience Degree of occupant.

Description

A kind of automobile trunk wheel arch lightweight noise-reducing components

Technical field

The utility model relates to technical field of automobile accessories, specially a kind of automobile trunk wheel arch lightweight noise reduction unit Part.

Background technique

Indoor Noise of Motor Vehicle is mainly broken through by grating, the automobile on the mechanical components such as engine noise, tire and ground The collision and grating, external environment that air curtain generates are passed to the generation vibration of the components such as interior sound, cockpit trim panel and generate The groups such as interior noise, wherein tire and the grating on ground are to be transmitted by the wheel arch in automobile trunk into car room , in order to improve car room environment, reduces automotive wheels and encircle the noise transmitted to car room, people are often in the outer of wheel arch Portion adheres to sound-proof material.

Although this directly can weaken tire and the grating on ground to the mode of wheel arch surface adhesion sound-proof material, It is to weaken poor effect, the noise intensity that the grating on tire and ground enters car room by wheel arch is still very high, automobile The Experience Degree of indoor occupant is poor, and sound-proof material needs to be cut into many blocks by hand, then splices one by one and is adhered to wheel arch Surface operates very troublesome, it is therefore desirable to design a kind of automobile trunk wheel arch lightweight noise-reducing components.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of automobile trunk wheel arch lightweight noise reduction unit Part, the component excellent noise reduction effect, can effectively improve environment inside car, improve the Experience Degree of occupant, and easy to operate, Facilitate and is installed.

The utility model provides the following technical solutions: a kind of automobile trunk wheel arch lightweight noise-reducing components, including outer Shell, the left end of the shell are fixedly installed with boot side wall, and the bottom of the shell is fixedly installed with boot bottom plate, described The inner wall of shell is fixedly installed with outer expanded rubber item, and the medial surface of the outer expanded rubber item is fixedly installed with outer butyl rubber Layer, the inner wall of the outer butyl layers are fixedly installed with sound-proof material, and the inner wall of the sound-proof material is fixedly installed with interior butyl rubber Glue-line, the inner wall of the interior butyl layers are fixedly installed with interior expanded rubber item, the right side welding of the boot side wall There is wheel arch shell, the bottom of the wheel arch shell and boot bottom plate weld.

Further, the left end of the outer surface of outer cover is equipped with pin, and the pin and shell are integrally formed.

Further, the quantity of the outer expanded rubber item is eight, shape between the two neighboring outer expanded rubber item At there is outer cushion chamber.

Further, the quantity of the interior expanded rubber item is seven, shape between the two neighboring interior expanded rubber item At there is interior cushion chamber.

Further, the relative position between the outer expanded rubber item and interior expanded rubber item mutually staggers.

Further, the left side of the interior expanded rubber item is skewed, and the angle between inclined surface and horizontal plane It is 30 degree.

Be compared with the prior art, the utility model have it is following the utility model has the advantages that

1, by interior expanded rubber item, make to be formed with interior cushion chamber between two neighboring interior expanded rubber item, by interior more Hole rubber strip and interior cushion chamber tentatively weaken the noise by wheel arch shell transmitting, by sound-proof material, make noise in sound insulation It is reflected repeatedly in gap inside cotton, the energy for further consuming noise is made two neighboring outer porous by outer expanded rubber item It is formed with outer cushion chamber between rubber strip, by outer expanded rubber item and outer cushion chamber, noise is weakened again, noise warp Effectively weakening three times is crossed, is effectively reduced and interior noise is transmitted to by wheel arch shell, improve environment inside car, improve vehicle occupant The Experience Degree of member.

2, by pin, increase the contact area between shell edge and boot side wall, keep adhesive gel more firm Solid the noise-reducing components and boot side wall are adhered to each other, by shell, provide a support frame for the noise-reducing components, make Outer expanded rubber item, outer butyl layers, sound-proof material, interior butyl layers and interior expanded rubber item form a whole, convenient Installation, it is easy to operate.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the outside drawing of Fig. 1；

Fig. 3 is the right view schematic diagram of internal structure of Fig. 1.

In figure: 1- shell；2- boot side wall；3- boot bottom plate；4- pin；The outer expanded rubber item of 5-；The outer butyl of 6- Rubber layer；7- sound-proof material；Butyl layers in 8-；Expanded rubber item in 9-；10- wheel arch shell；The outer cushion chamber of 11-；Buffering in 12- Chamber.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, a kind of automobile trunk wheel arch lightweight noise-reducing components, including shell 1, shell 1 is by PE etc. Injection raw material is molded, and the left end of 1 outer surface of shell is equipped with pin 4, and pin 4 and shell 1 are integrally formed, and increases by 1 side of shell Edge and the contact area between boot side wall 2, keep adhesive gel stronger for the noise-reducing components and boot side wall 2 It is adhered to each other, the left end of shell 1 is pasted with boot side wall 2 by adhesive gel, and the bottom of shell 1 is pasted with by adhesive gel The inner wall of boot bottom plate 3, shell 1 is pasted with outer expanded rubber item 5 by adhesive gel, and the quantity of outer expanded rubber item 5 is eight It is a, it is formed with outer cushion chamber 11 between two neighboring outer expanded rubber item 5, the vibration and noise transmit to wheel arch shell 10 are cut Weak, the medial surface of outer expanded rubber item 5 is pasted with outer butyl layers 6 by adhesive gel, and the inner wall of outer butyl layers 6 passes through Adhesive gel is pasted with sound-proof material 7, and the inner wall of sound-proof material 7 is pasted with interior butyl layers 8, interior butyl layers 8 by adhesive gel Inner wall interior expanded rubber item 9 is pasted with by adhesive gel, the left side of interior expanded rubber item 9 be it is skewed, and inclined surface with Angle between horizontal plane is 30 degree, facilitates and is installed, opposite between outer expanded rubber item 5 and interior expanded rubber item 9 Position mutually staggers, and mutually staggers outer cushion chamber 11 with interior cushion chamber 12, further makes noise in 1 internal refraction of shell, drop The low volume for being transmitted to Indoor Noise of Motor Vehicle improves environment inside car, and the quantity of interior expanded rubber item 9 is seven, two neighboring interior Interior cushion chamber 12 is formed between expanded rubber item 9, the vibration and noise transmit to wheel arch shell 10 weaken, boot side wall 2 right side is welded with wheel arch shell 10, and the bottom of wheel arch shell 10 and boot bottom plate 3 weld, the inner surface of interior expanded rubber item 9 It is slidably connected with the outer surface of wheel arch shell 10.

When work, the frictional noise on tire and ground passes to wheel arch shell 10, and then noise is inside interior expanded rubber item 9 It reflects in hole and interior cushion chamber 12, noise is weakened repeatedly tentatively, then interior butyl layers 8 shake to caused by noise Dynamic to be buffered, then noise reflects repeatedly between the gap inside sound-proof material 7, carries out second to noise and weakens, then Outer butyl layers 6 carry out second to vibration caused by noise and buffer, then noise penetrate outer butyl layers 6 enter it is outer more Hole rubber strip 5 and outer cushion chamber 11, noise reflect repeatedly in outer 5 internal void of expanded rubber item and outer cushion chamber 11, third Secondary to weaken to noise, noise by weakening three times and considering shake twice, makes to be transmitted to interior noise intensity significantly in total Reduce, improves interior environment, improve the Experience Degree of occupant.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of automobile trunk wheel arch lightweight noise-reducing components, including shell (1), it is characterised in that: the shell (1) Left end is fixedly installed with boot side wall (2), and the bottom of the shell (1) is fixedly installed with boot bottom plate (3), the shell (1) inner wall is fixedly installed with outer expanded rubber item (5), and the medial surface of the outer expanded rubber item (5) is fixedly installed with outer fourth The inner wall of base rubber layer (6), the outer butyl layers (6) is fixedly installed with sound-proof material (7), the inner wall of the sound-proof material (7) It being fixedly installed with interior butyl layers (8), the inner wall of the interior butyl layers (8) is fixedly installed with interior expanded rubber item (9), The right side of the boot side wall (2) is welded with wheel arch shell (10), the bottom and boot bottom plate (3) of wheel arch shell (10) Welding.

2. a kind of automobile trunk wheel arch lightweight noise-reducing components according to claim 1, it is characterised in that: described outer The left end of shell (1) outer surface is equipped with pin (4), and the pin (4) and shell (1) are integrally formed.

3. a kind of automobile trunk wheel arch lightweight noise-reducing components according to claim 1, it is characterised in that: described outer The quantity of expanded rubber item (5) is eight, is formed with outer cushion chamber (11) between the two neighboring outer expanded rubber item (5).

4. a kind of automobile trunk wheel arch lightweight noise-reducing components according to claim 1, it is characterised in that: in described The quantity of expanded rubber item (9) is seven, is formed with interior cushion chamber (12) between the two neighboring interior expanded rubber item (9).

5. a kind of automobile trunk wheel arch lightweight noise-reducing components according to claim 1, it is characterised in that: described outer Relative position between expanded rubber item (5) and interior expanded rubber item (9) mutually staggers.

6. a kind of automobile trunk wheel arch lightweight noise-reducing components according to claim 1, it is characterised in that: in described The left side of expanded rubber item (9) is skewed, and the angle between inclined surface and horizontal plane is 30 degree.