CN212073640U

CN212073640U - Automobile noise reduction adhesive tape and automobile with same

Info

Publication number: CN212073640U
Application number: CN201922295285.7U
Authority: CN
Inventors: 傅文丰; 黄杨; 王猛; 游亚川; 黄光荣; 舒岩军
Original assignee: Chongqing Branch of DFSK Motor Co Ltd
Current assignee: Chongqing Branch of DFSK Motor Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-12-04
Anticipated expiration: 2029-12-19

Abstract

The embodiment disclosed in the application provides an automobile noise reduction adhesive tape and have car of this adhesive tape, the automobile noise reduction adhesive tape includes the body, and the place ahead of body is equipped with the first lip limit that is located the outside and is located the inboard second lip limit, and first lip limit, second lip limit and body form first appearance chamber, first appearance chamber and the A post phase-match of car or the first A post interference fit who holds chamber and car, the body still are equipped with the third lip limit, first lip limit, body and third lip limit are arranged from the past backward in proper order, and the lateral surface of the third lip limit, the lateral surface of body and the lateral surface of first lip limit form continuous first side. The rubber strip of making an uproar falls through setting up the third lip limit, and lets the lateral surface of third lip limit, the lateral surface of body and the lateral surface of first lip limit form continuous first side, has increased the length of first lip limit relatively, avoids A post air current direct separation.

Description

Automobile noise reduction adhesive tape and automobile with same

Technical Field

The utility model relates to an automobile parts field, concretely relates to automobile noise reduction adhesive tape and have car of this adhesive tape.

Background

The following is merely an acknowledgement of the knowledge of the relevant technical field by the utility model and does not necessarily constitute prior art.

At present, automobile consumers have gradually improved requirements on the heat insulation, sound insulation and other overall automobile performances of automobiles, and the requirements are firstly just the running wind noise. And present car is also for the lightweight, and the structure of many driving positions all adopts lightweight design, therefore the sound insulation effect will be relatively poor, for example front door glass adopts 3.5mm to replace 4.0mm etc. and the wind noise of driver's driving in-process is more obvious relatively, influences speaking definition and driving comfort etc.. Through research, the inventor finds that the wind noise near the A column is in relatively large relation with the swirl degree of the airflow near the A column, and therefore, how to reduce the swirl degree of the airflow near the A column becomes a relatively important point.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this disclosure is to provide can effectively reduce the adhesive tape structure of wind noise.

In a first aspect, the embodiment of the disclosure provides an automobile noise reduction rubber strip, which comprises a body, wherein a first lip edge positioned on the outer side and a second lip edge positioned on the inner side are arranged in front of the body, the first lip edge, the second lip edge and the body form a first containing cavity, the first containing cavity is matched with an A column of an automobile or is in interference fit with the A column of the automobile, a first side edge and a second side edge are arranged on the body, the first side edge, the second side edge and the body form a second containing cavity, the second containing cavity is matched with glass of the automobile or is in interference fit with window glass of the automobile, the body is further provided with a third lip edge, the first lip edge, the body and the third lip edge are sequentially arranged from front to back, and the outer side surface of the third lip edge, the outer side surface of the body and the outer side surface of the first lip edge form a.

In one embodiment, the rear end of the outer side of the third lip is located rearwardly of where the body abuts the window pane when the body abuts the window pane.

In one embodiment, the outer side surface of the first lip extends from front to back and from inside to outside.

In one embodiment, the first lip is an arcuate structure.

In one embodiment, the radius of curvature of the first lip increases from front to back.

In one embodiment, the first side edge is located on the outer side of the body relative to the second side edge, and the first side edge, the third lip and the body form a third cavity, and an opening of the third cavity faces the rear.

In one embodiment, the outer side surface of the third lip extends from front to back and from inside to outside.

In another aspect, an automobile comprises an a-pillar, a window glass corresponding to the a-pillar, and the automobile noise reduction rubber strip of any one of the embodiments of the first aspect.

Therefore, the rubber strip of making an uproar falls through setting up the third lip limit, and lets the lateral surface of third lip limit, the lateral surface of body and the lateral surface of first lip limit form continuous first side, has increased the length of first lip limit relatively, avoids A post air current direct separation.

Drawings

FIG. 1 is a schematic structural view of a noise-reducing adhesive tape in an exemplary embodiment.

Fig. 2 is a schematic view of the air flow as it passes over the outside of the a-pillar.

FIG. 3 is a schematic structural view of a noise-reducing adhesive tape in another exemplary embodiment.

The labels in the figure are: 1. a column A; 2. a body; 3. a first lip; 4. a second lip; 5. a first cavity; 6. a third lip; 7. a first side edge; 8. a second side edge; 9. a first side surface; 10. a window glass for a vehicle.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:

example 1

An automobile noise reduction rubber strip is shown in figure 1 and comprises a body 2, a first lip edge 3 positioned on the outer side and a second lip edge 4 positioned on the inner side are arranged in front of the body 2, a first containing cavity 5 is formed by the first lip edge 3, the second lip edge 4 and the body 2, the first containing cavity 5 is matched with the A column 1 of the automobile or the first containing cavity 5 is in interference fit with the A column 1 of the automobile, the body 2 is provided with a first side edge 7 and a second side edge 8, the first side edge 7, the second side edge 8 and the body 2 form a second cavity, the second cavity is matched with the glass of the automobile or the second cavity is in interference fit with the window glass 10 of the automobile, the body 2 is also provided with a third lip edge 6, the first lip edge 3, the body 2 and the third lip edge 6 are sequentially arranged from front to back, and the outer side of the third lip 6, the outer side of the body 2 and the outer side of the first lip 3 form a continuous first side 9. In one embodiment, the first volume 5 has its opening facing forwards and the second volume has its opening facing backwards.

As shown in fig. 2, when air flows through the a-pillar 1, a fluid boundary layer is normally formed beside the a-pillar 1, and when the boundary layer is distant from an object, the velocity of the boundary layer with respect to the object is reduced to almost zero, and at this time, flow separation occurs, and a separated flow is generated, and the fluid is separated from the surface of the object. Obviously, when the outer side surface of the first lip edge 3 is short, air is quickly separated from the A column 1 and the rubber strip at the tail part of the outer side surface of the first lip edge 3 to form a vortex, so that the noise is increased while the air resistance is improved. And this application has lengthened the front and back length of the lateral surface of first lip limit 3 through adding third lip limit 6 to make the air current can not separate with first lip limit 3 and A post 1 suddenly, produce great swirl, but will separate after slowing down speed through a section of longer distance earlier, the produced swirl volume that has significantly reduced, noise abatement and air resistance.

In one embodiment, the rear end of the outer side of the third lip 6 is located rearwardly of where the body 2 abuts the window pane 10 when the body 2 abuts the window pane 10. Since the outer side of the third lip 6 is located behind the abutment of the body 2 and the window pane 10, it is ensured that when the outer air flow is separated from the glue strip, it will be located behind the abutment of the body 2 and the window pane 10, and when the user closes the pane, the noise interference it receives near the a-pillar 1 will be relatively small.

In one embodiment, the outer side of the first lip 3 extends from front to back and from inside to outside. As shown in fig. 2, when the air current flows to the side of the a-pillar 1 from the front of the a-pillar 1, the a-pillar 1 is bent suddenly to cause the air current to be easily separated from the a-pillar 1 to form a vortex at the position, but i set the outer side surface of the first lip 3 to be in a state extending from the front to the back from inside to outside, so that the air current is relatively gentle when flowing through the bent position of the a-pillar 1, and is not easily and suddenly separated from the a-pillar 1, thereby reducing the vortex near the a-pillar 1, reducing the noise and simultaneously reducing the air resistance.

In one embodiment, as shown in fig. 3, the first lip 3 has an arcuate configuration. In one embodiment, the radius of curvature of the first lip 3 increases from front to back.

In one embodiment, the first side edge 7 is located outside the body 2 relative to the second side edge 8, and the first side edge 7, the third lip 6 and the body 2 form a third cavity, which is open towards the rear. The third cavity is arranged to change the flow direction of the airflow, so that the airflow is not easy to suddenly separate from the third lip edge 6.

In one embodiment, the outer side of the third lip 6 extends from front to back and from inside to outside.

In one embodiment, the noise reduction rubber strip is made of a noise reduction material. Preferably, the noise reduction adhesive tape is an adhesive tape with a porous structure.

Example 2

An automobile comprises an A column 1, a window glass 10 corresponding to the A column 1 and the automobile noise reduction rubber strip in any embodiment.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an adhesive tape of making an uproar falls in car, its characterized in that includes the body, and the place ahead of body is equipped with the first lip limit that is located the outside and is located the inboard second lip limit, and first lip limit, second lip limit and body form first appearance chamber, first appearance chamber and the A post phase-match of car or first appearance chamber and the A post interference fit of car, be equipped with first side and second side on the body, first side, second side and body form the second and hold the chamber, the second holds the glass phase-match of chamber and car or the second holds the chamber and the window glass interference fit of car, and the body still is equipped with the third lip limit, first lip limit, body and third lip limit are arranged in proper order backward in the past, and the lateral surface of the third lip limit, the lateral surface of body and the lateral surface of first lip limit form continuous first.

2. The automotive noise reduction gum strip of claim 1 wherein the rear end of the outer side of the third lip is located rearward of where the body abuts the window glass when the body abuts the window glass.

3. The automotive noise reduction bead of claim 1, wherein the outer side surface of said first lip extends from front to back and from inside to outside.

4. The automotive noise reduction bead of claim 1, wherein said first lip is arcuate in configuration.

5. The automotive noise reduction bead of claim 4, wherein the radius of curvature of the first lip increases from front to back.

6. The automotive noise reduction bead of claim 1, wherein the first side is located outside the body relative to the second side, and the first side, the third lip, and the body form a third cavity, and an opening of the third cavity faces rearward.

7. The automotive noise reduction bead of claim 1, wherein the outer side surface of said third lip extends from front to back and from inside to outside.

8. An automobile, characterized by comprising an A-pillar, a window glass corresponding to the A-pillar and the automobile noise reduction rubber strip of any one of claims 1 to 7.