CN217435610U

CN217435610U - Noise reduction rearview mirror for vehicle

Info

Publication number: CN217435610U
Application number: CN202220329898.7U
Authority: CN
Inventors: 柳鹏; 李浩然; 车红江; 邵林
Original assignee: Shaanxi Heavy Duty Automobile Co Ltd
Current assignee: Shaanxi Heavy Duty Automobile Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-09-16
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses a noise reduction rearview mirror for a vehicle, which comprises a mirror component and a supporting arm connected with the mirror component; the sight glass assembly comprises a housing and a lens; the lens is arranged in the housing; a plurality of pits are formed in the windward side of the housing, the size of each pit is 3mm to 30mm, the depth of each pit is 1mm to 6mm, and the distance between every two adjacent pits is 2mm to 30 mm. Set up the pit on the housing windward side through the rear-view mirror, help hindering the flow direction to the development of whirlpool to and the effective thickness of increase viscidity bottom to reduce the aerodynamic noise of rear-view mirror, reduce the interference to the driver, improve personnel's travelling comfort by bus.

Description

Noise reduction rearview mirror for vehicle

Technical Field

The application relates to the technical field of rearview mirrors, in particular to an automobile-used rearview mirror of making an uproar that falls.

Background

The aerodynamic noise of the rearview mirror is an important component of the noise of a heavy truck, and is generated because the rearview mirror protrudes out of the surface of a truck body, so that airflow separation can occur when airflow flows through the rearview mirror area in the driving process of the truck, a vortex is formed behind the rearview mirror, the surrounding air pressure is caused to pulsate and acts on the surface of a side window, and the aerodynamic noise is formed. Moreover, the rearview mirror is close to the cab, so that the work of a driver can be disturbed, and the comfort of passengers is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one aspect of the above problems, the present invention provides a noise reduction rearview mirror for vehicle, comprising a mirror assembly and a supporting arm connected with the mirror assembly; the sight glass assembly comprises a housing and a lens; the lens is arranged in the housing; a plurality of pits are formed in the windward side of the housing, the size of each pit is 3mm to 30mm, the depth of each pit is 1mm to 6mm, and the distance between every two adjacent pits is 2mm to 30 mm.

Preferably, a plurality of the pits are uniformly distributed on the windward side of the housing.

Preferably, the distance between adjacent dimples is between 6mm and 20 mm.

Preferably, the size of the pits is between 3mm and 10 mm.

Preferably, the depth of the pits is between 2mm and 5 mm.

The utility model discloses a rear-view mirror of making an uproar falls in automobile-used has following beneficial effect:

the concave pits are formed on the windward side of the rearview mirror housing, so that the windward side of the rearview mirror housing is unsmooth, on one hand, the unsmooth surface can inhibit the burst process of near-wall turbulence, reduce the turbulence intensity and Reynolds stress, and is beneficial to the generation of secondary vortexes, and the generation and development of the secondary vortexes can weaken the intensity of flow direction to vortexes, so that the formation of low-speed belts is inhibited, the momentum exchange between the span direction and the normal direction is hindered, and the turbulence noise is reduced; on the other hand, the transverse flow of most of the fluid in the pit is blocked, and large-scale span-wise vortex is difficult to form, so that the velocity gradient of the wall surface is reduced, and the friction noise of the surface is reduced.

Drawings

For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the embodiments illustrated in the drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not to scale.

Fig. 1 shows a schematic view of a rear view mirror according to the prior art;

fig. 2 shows according to the utility model discloses an automobile-used rear-view mirror of making an uproar that falls's structure schematic diagram.

Description of reference numerals:

1. a support arm; 2. a housing; 3. and (4) pits.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

The term "including" and variations thereof as used herein is intended to be open-ended, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like may refer to different or the same objects. Other explicit and implicit definitions are also possible below.

To at least partially address one or more of the above issues and other potential issues, one embodiment of the present disclosure proposes a noise-reducing rearview mirror for a vehicle, comprising a mirror assembly and a support arm 1 connected to the mirror assembly; the sight glass assembly comprises a housing 2 and a lens; the lens is arranged in the housing 2; a plurality of pits 3 are formed in the windward side of the housing 2, the size of each pit 3 is 3mm to 30mm, the depth of each pit 3 is 1mm to 6mm, and the distance between every two adjacent pits 3 is 2mm to 30 mm.

Specifically, as shown in fig. 1, a schematic structural diagram of a rearview mirror of a heavy-duty car in the prior art is shown. The rearview mirror comprises a mirror assembly and a supporting arm 1 connected with the mirror assembly; the sight glass component comprises a housing 2 and a lens, wherein the lens is arranged in the housing 2; the supporting arms 1 are provided with two, one ends of the two supporting arms 1 are respectively connected with the top and the bottom of the housing 2, and the other ends of the two supporting arms are respectively connected with the body of the heavy-duty car.

Fig. 2 is a schematic structural view of the noise reduction rearview mirror for vehicle according to the present application. The windward side of the housing 2 is provided with a plurality of pits 3, the windward side of the housing 2 refers to an area where the rear-view mirror housing 2 and the projection of the advancing direction of the vehicle intersect, and the shape of the pits 3 can be a polygon such as a rectangle, a pentagon and a hexagon, or a closed curve figure such as a circle and an ellipse. In some embodiments, a plurality of dimples 3 are evenly distributed on the windward side of the housing 2, the size of the dimples 3 is between 3mm and 10mm, the depth of the dimples 3 is between 2mm and 5mm, and the spacing between adjacent dimples 3 is between 6mm and 20 mm. Set up pit 3 on the housing 2 windward side through the rear-view mirror, help hindering the flow direction to the development of whirlpool, the effective thickness of increase viscidity bottom for the pneumatic noise of rear-view mirror weakens, thereby reduces the interference to the driver, improves crew's travelling comfort.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements to the market, or to enable others of ordinary skill in the art to understand the disclosure.

Claims

1. The utility model provides an automobile-used rear-view mirror of making an uproar that falls which characterized in that: comprises a sight glass component and a supporting arm (1) connected with the sight glass component; the sight glass component comprises a housing (2) and a lens; the lens is arranged in the housing (2); a plurality of pits (3) are formed in the windward side of the housing (2), the size of each pit (3) is 3mm to 30mm, the depth of each pit (3) is 1mm to 6mm, and the distance between every two adjacent pits (3) is 2mm to 30 mm.

2. The vehicular noise reduction rearview mirror according to claim 1, wherein: the plurality of pits (3) are uniformly distributed on the windward side of the housing (2).

3. The vehicular noise reduction rearview mirror according to claim 2, wherein: the distance between adjacent pits (3) is between 6mm and 20 mm.

4. The vehicular noise reduction rearview mirror according to claim 1, wherein: the size of the pits (3) is between 3mm and 10 mm.

5. The vehicular noise reduction rearview mirror according to claim 1, wherein: the depth of the pits (3) is between 2mm and 5 mm.