CN217124501U

CN217124501U - Noise-reducing weather shield and mounting structure thereof

Info

Publication number: CN217124501U
Application number: CN202220859649.9U
Authority: CN
Inventors: 湛牧知; 姚蕾; 崔靖雯
Original assignee: Changsha Lushan International Experimental Primary School
Current assignee: Changsha Lushan International Experimental Primary School
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-05
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a rain and shine fender and mounting structure of making an uproar fall, keep off the body including the rain and shine of vertical extension on the whole, see from the fore-and-aft cross-section of perpendicular to, the strip of making an uproar falls that has the inboard extension on the medial surface that the body was kept off to the rain and shine, the rain and shine keeps off the body and fall the whole F type that is of strip cross sectional shape of making an uproar. Still provide a rain and shine fender mounting structure that makes an uproar falls. The noise reduction strip is additionally arranged on the weather shield body, so that the noise outside the automobile can be completely blocked or attenuated according to different opening degrees of the automobile window, and the noise outside the automobile can be effectively blocked; the air flow is weakened due to the obstruction of an F-shaped weather shield and a vehicle window, so that the air entering the vehicle body is tempered; the noise reduction strip is additionally arranged on the weather shield body, so that the weather shield is integrally F-shaped, the weather shield can be reinforced, and the service life is prolonged; when the F-shaped weather shield is used, the vibration generated by the pressed weather shield is smaller than that of the arc, and the wind noise can be reduced.

Description

Noise-reducing weather shield and mounting structure thereof

Technical Field

The utility model relates to an automotive filed, concretely relates to rain and shine fender and mounting structure of making an uproar fall.

Background

When the automobile window is closed, the air in the automobile is difficult to flow, and stuffy feeling is easy to generate; when the window is in an open state, the air inside and outside the vehicle flows faster, and meanwhile, the noise outside the vehicle is difficult to isolate. The traditional weather shield is in an arc shape, when a window is in an open state, air flow flows into the interior of the automobile from the outside in an S-shaped route, and the air flow is too strong, so that the weather shield can vibrate to generate large wind noise; meanwhile, the weather shield has a poor effect of blocking the sound waves of the noise outside the vehicle, the sound waves still enter the vehicle after being radiated by the vehicle window and the weather shield, and the noise inside the vehicle is still very large.

The Chinese patent application publication No. CN105667263A discloses a weather shield for filtering air and reducing wind noise, which comprises a weather shield body and an adhesion assembly for adhering the weather shield body and an upper frame of a window surface, wherein the weather shield body is made of a resonance sound absorption material, the bottom end of the weather shield body is fixedly connected with a frame-shaped support pointing to the window surface, a gap is arranged between the end part of the support and the window surface, and the support is provided with a filter screen. The invention aims to provide a weather shield for filtering air and reducing wind noise, which aims to solve the problems that weather is high in weather noise and an air filtering device is not arranged in the prior art, and achieve the purposes of reducing the weather noise in the high-speed running process of an automobile and providing the air entering the automobile through the weather shield with the filtering device. However, such weather guards still do not solve the problem of blocking noise outside the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rain and shine fender of making an uproar and mounting structure fall, this kind of rain and shine fender not only can reduce wind and make an uproar, can also effectively separate the car external noise.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

the utility model provides a rain and shine of making an uproar keep off, keeps off the body including the rain and shine of whole last longitudinal extension, and its structural feature is: seen from the vertical cross-section of perpendicular to, have the strip of making an uproar that falls of inside side extension on the medial surface of weather fender body, weather keeps off the whole F type that is of body and the strip cross sectional shape of making an uproar that falls.

When the car window descends to the noise reduction strip from a closed state, the sound waves of the noise outside the car are reflected when being blocked by the car window and the F-shaped weather shield during transmission, and the sound waves are reflected to form multiple reflection paths, so that the sound is reflected outside the car, and the noise cannot enter the car; and the air current is the wave route and flows inside the automobile body through the clearance between F type weather fender and the door window, and the air current intensity decay is great for the air current that flows into in the automobile body becomes gentle. When the car window descends to the position below the noise reduction strip from a closed state, when the car window noise sound wave is transmitted, the car window noise sound wave is blocked by the F-shaped weather shield and reflected, a symmetrical included angle is formed by partial reflection, so that the sound wave is consumed, an outward reflection angle is formed, the sound wave transmission path is lengthened by partial reflection, the noise sound wave is attenuated, and the car noise can be greatly reduced; and when the air current passes through the clearance between the F-shaped weather shield and the window, a backflow bend is formed, and the air flow speed becomes slow, so that the air current flowing into the vehicle body becomes mild. The noise reduction strip is additionally arranged on the weather shield body, so that the noise outside the automobile can be completely blocked or attenuated according to different opening degrees of the automobile window, and the noise outside the automobile can be effectively blocked; the air current is weakened by the obstruction of the F-shaped weather shield and the window, so that the air entering the vehicle body is tempered. The noise reduction strip is additionally arranged on the weather shield body, so that the weather shield is integrally F-shaped, the weather shield can be reinforced, and the service life is prolonged; when the F-shaped weather shield is used, the vibration generated by pressing is smaller than that of the arc-shaped weather shield, and the wind noise can be reduced.

Specifically, weather keeps off the body and falls the strip integration setting of making an uproar.

Specifically, the weather shield body is arc-shaped when viewed from a cross section perpendicular to the longitudinal direction.

Specifically, the noise reduction strip is provided with an air flow channel. The outside window air flow can also enter the window through the air flow channel, and the outside window noise can also enter the window through the air flow channel.

Based on the same invention concept, the utility model also provides a rain shield mounting structure that makes an uproar falls, its structural feature is: install the door window outside the weather that makes an uproar keeps off, the strip of making an uproar sets up towards window glass's direction of making an uproar.

Specifically, a gap is formed between the noise reduction strip and the window glass.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a it keeps off to fall fine and rain of making an uproar keeps off and through add the strip of making an uproar that falls on the fine and rain keeps off the body, and is different according to the door window opening degree for the complete separation of car external noise perhaps takes place the decay, can effectively separate the car external noise.

2. The utility model provides a it keeps off to fall fine and rain of making an uproar meets the hindrance that F type fine and rain kept off and the door window when making the air current flow and weakens for the air that enters into in the automobile body becomes warm.

3. The noise reduction weather shield provided by the utility model is additionally provided with the noise reduction strip on the weather shield body, so that the whole weather shield is F-shaped, the weather shield can be reinforced, and the service life is prolonged;

4. the utility model provides a when making an uproar is fallen and rain keeps off the use, the vibrations that F type weather kept off the pressurized production are less than the arcuation that bends, can reduce wind and make an uproar.

Drawings

FIG. 1 is a schematic view of a noise-reducing weather shield installation structure of the present invention;

FIG. 2 is a schematic view of the structure of the propagation of sound waves of the embodiment of FIG. 1;

FIG. 3 is a schematic view of the structure of the air flow of FIG. 2;

FIG. 4 is a schematic view of the structure of the sound wave propagation path of another embodiment in FIG. 1;

fig. 5 is a schematic view of the air flow direction structure in fig. 4.

In the figure

1-rain shield body; 2-vehicle window; 3-noise reduction strips; 4-sound waves; 5-air flow.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the noise-reduction weather shield mounting structure of the present embodiment includes a weather shield body 1, and the weather shield body 1 is mounted outside a window 2. Be equipped with on the weather keeps off body 1 and fall the strip of making an uproar 3, it sets up to fall the strip of making an uproar 3 the weather keeps off body 1 is close to on the side of 2 glasses of door window, fall the strip of making an uproar 3 with be equipped with the clearance between 2 glasses of door window. The strip of making an uproar 3 follows 2 length direction extensions of door window, the whole F type that is of 3 cross sectional shape of the strip of making an uproar that keeps off body 1 and fall in weather.

When the automobile window 2 is lowered to the noise reduction strip 3 from the closed state in use, as shown in fig. 2 and fig. 3, when the automobile exterior noise sound wave is transmitted, the sound wave is reflected when meeting the obstruction of the automobile window 2 and the F-shaped weather shield, and the sound wave is reflected to form a multiple reflection path, so that the sound is reflected to the outside of the automobile, and the noise cannot enter the automobile interior. And the air current is the wave route and flows inside the automobile body through the clearance between F type weather fender and door window 2, and the air current intensity decay is great for the air current that flows into in the automobile body becomes gentle. When the window 2 descends to the lower part of the noise reduction strip 3 from the closed state, as shown in fig. 4 and fig. 5, when the noise sound wave outside the vehicle is transmitted, the sound wave meets the obstruction of the window 2 and the F-shaped weather shield and is reflected, a symmetrical included angle is formed by partial reflection, the sound wave is consumed, an outward reflection angle is formed, the sound wave propagation path is lengthened by partial reflection, the noise sound wave is attenuated, and the noise inside the vehicle can be greatly reduced. And the air current forms a backward flow curve (see fig. 5) while passing through the gap between the F-type weather shield and the window 2, the air flow rate becomes slow, so that the air current flowing into the vehicle body becomes gentle.

In order to verify the use effect of the noise-reduction sun-rain shield, the same vehicle is used, the vehicle is located in the middle of a rear seat in the same road section, and the decibel value of sound in the test vehicle is shown in the following table:

wherein the window is in the closed state and is completely closed, and the window is in the open state and is lowered from the closed state to the position below the noise reduction bar. Data on the contrast, the installation is fallen the noise and is kept off the back in the fine day, along with the improvement of the speed of a motor vehicle, and obvious decay takes place for the sound wave in the car, and the air current also becomes mildly simultaneously.

The above embodiments are set forth so that the present invention may be more clearly illustrated and not intended to limit the scope of the present invention, and after reading the present invention, it will be understood that modifications of various equivalent forms of the present embodiments by those skilled in the art will fall within the scope of the present invention defined by the appended claims.

Claims

1. The utility model provides a rain and shine of making an uproar keep off, keeps off body (1) including the rain and shine of whole upper longitudinal extension, its characterized in that: seen from the vertical cross-section of perpendicular to, have on the medial surface of weather fender body (1) to the inside side extension fall noise bar (3), weather keeps off body (1) and falls noise bar (3) cross sectional shape whole and be the F type.

2. The noise-reducing weather shield of claim 1, wherein: the weather keeps off body (1) and falls the strip (3) integration setting of making an uproar.

3. The noise-reducing weather shield of claim 1, wherein: seen from a cross section perpendicular to the longitudinal direction, the weather shield body (1) is arc-shaped.

4. The noise-reducing weather shield of claim 1, wherein: and an air flow channel is arranged on the noise reduction strip (3).

5. The utility model provides a rain and shine of making an uproar keep off mounting structure which characterized in that: a noise-reducing weather shield as claimed in any one of claims 1 to 4 is mounted on the outer side of a vehicle window (2), and the noise-reducing strips (3) are arranged towards the glass of the vehicle window (2).

6. The noise-reducing weather shield mounting structure according to claim 5, wherein: and a gap is arranged between the noise reduction strip (3) and the glass of the car window (2).