CN116872844A - Rearview mirror shell structure and vehicle - Google Patents

Abstract

The invention relates to the technical field of automobile parts and provides a rearview mirror shell structure and a vehicle, wherein the rearview mirror shell structure comprises a mirror shell and a mirror handle which are connected with each other, a first through hole is formed in the bottom of the mirror shell and/or the bottom of the mirror handle, the first through hole is provided with a first hole wall and a second hole wall which are oppositely arranged, the first hole wall is positioned on the windward side of the first through hole, and the first hole wall is gradually far away from the second hole wall along the direction from the top end to the bottom end of the first hole wall. Like this, not only can reduce the impact of air current to first through-hole front side edge, can also reduce the air current that gets into first through-hole to can effectively improve because of the air current impact first through-hole edge and run through the inside wind noise problem that produces of entering rear-view mirror shell structure, the experience of having improved the driver and having taken advantage of when riding and the security when driving to a great extent.

Description

Rearview mirror shell structure and vehicle

Technical Field

The invention relates to the technical field of automobile parts, in particular to a rearview mirror shell structure and a vehicle.

Background

With the rapid development of the automobile industry and the continuous increase of vehicles, the requirements of people on the perceived quality of the vehicles are also higher and higher, wherein the automobile wind noise is an important factor affecting the riding comfort of drivers and passengers, and the rearview mirror wind noise problem is one of the key factors of the automobile wind noise.

At present, in order to realize functions such as drainage, maintenance and the like in a rearview mirror shell, a functional small hole structure such as a water leakage hole or a maintenance hole is usually designed on the rearview mirror shell or a mirror handle, and broadband noise of the rearview mirror is easy to be caused when air flows through the small hole structure, so that in-car perception is obvious, the experience of a driver is seriously influenced, particularly the driving experience of the driver is easy to cause safety accidents.

Disclosure of Invention

The invention solves the problems that: how to improve the wind noise problem of the automobile rearview mirror so as to improve the safety of drivers and passengers during driving.

In order to solve the problems, the invention provides a rearview mirror shell structure, which comprises a mirror shell and a mirror handle which are connected with each other, wherein a first through hole is formed in the bottom of the mirror shell and/or the mirror handle, the first through hole is provided with a first hole wall and a second hole wall which are oppositely arranged, the first hole wall is positioned on the windward side of the first through hole, and the first hole wall is gradually far away from the second hole wall along the direction from the top end to the bottom end of the first hole wall.

Optionally, the second hole wall is gradually far away from the first hole wall along the direction from the top end to the bottom end of the second hole wall.

Optionally, the first hole wall is inclined to the axial direction of the first through hole by a smaller degree than the second hole wall.

Optionally, the first through hole includes first through hole portion and second through hole portion, first pore wall with the second pore wall encloses first through hole portion, the pore wall of second through hole portion extends the setting up along vertical direction.

Optionally, a ratio of the opening depth of the first through hole portion to the opening depth of the second through hole portion is greater than or equal to 1.

Optionally, the bottom of mirror shell still is equipped with the second through-hole, the second through-hole is used for installing the bulb pivot, the second through-hole includes first shaft hole portion, first shaft hole portion has tip and big head end, the big head end of first shaft hole portion be used for with the outside space intercommunication of mirror shell, just the open pore area of first shaft hole portion is followed tip end to the big head end direction of first shaft hole portion increases progressively.

Optionally, the second through hole further comprises a second shaft hole part, the small end of the first shaft hole part is communicated with the second shaft hole part, and the hole wall of the second shaft hole part extends upwards along the vertical direction.

Optionally, a flange structure is further arranged at the bottom of the mirror shell, and the flange structure encloses the second through hole and is located in the inner space of the mirror shell.

Optionally, the raised height of the flanging structure is greater than or equal to 5mm.

In order to solve the above problems, the present invention also provides a vehicle including the rearview mirror housing structure as described above.

Compared with the prior art, the invention has the following beneficial effects:

according to the rearview mirror shell structure, the first through hole is formed in the bottom end of the mirror shell and/or the mirror handle so as to serve as a water leakage hole and/or a maintenance hole, meanwhile, the first hole wall on the windward side of the first through hole is arranged to be gradually far away from the second hole wall along the direction from the top end to the bottom end of the first through hole, so that the whole first hole wall is approximately in a conical surface structure or a conical surface-like structure which is obliquely arranged forwards, when air flows from the front side of the first through hole (namely the windward side of the first through hole) to the rear side, the first hole wall which is obliquely arranged forwards can smoothly guide the air flow to the rear side, so that vortex is not easy to form when the air flow passes through the first through hole, but the air flow passes through the lower surface of the mirror shell or the mirror handle, the impact of the air flow to the front side edge of the first through hole can be reduced, and the air flow entering the first through hole can be reduced, and accordingly the problem of wind noise generated by the air flow impacting the edge of the first through hole and penetrating into the inside of the rearview mirror shell structure can be effectively improved, and the experience and the driving safety of passengers when riding is improved to a great extent.

Drawings

FIG. 1 is a schematic view of a rear view mirror housing structure according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a mirror housing structure at a first through hole according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of the lower shell at the second through hole according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a second through hole according to an embodiment of the present invention.

Reference numerals illustrate:

1. a mirror housing; 11. a first mirror housing; 12. a second mirror housing; 2. a lens handle; 3. a first through hole; 31. a first through hole portion; 311. a first aperture wall; 312. a second aperture wall; 313. a first cambered surface; 314. a second cambered surface; 32. a second through hole portion; 4. a second through hole; 41. a first shaft hole portion; 411. a third hole wall; 42. a second shaft hole portion; 43. a third cambered surface; 5. a flanging structure; 51. a first burring part; 52. a second burring part;

100. a rearview mirror housing structure; 200. a ball head rotating shaft.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The Z-axis in the drawing represents the vertical direction, i.e., the up-down position, and the forward direction of the Z-axis (i.e., the arrow of the Z-axis points) represents the up direction, and the reverse direction of the Z-axis represents the down direction; the X-axis in the drawing represents the horizontal direction and is designated as the front-rear position, and the forward direction of the X-axis represents the front side and the reverse direction of the X-axis represents the rear side; the Y-axis in the drawing is shown in a left-right position, and the forward direction of the Y-axis represents the left side and the reverse direction of the Y-axis represents the right side; it should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.

At present, the rearview mirror is usually installed outside a vehicle, and a gap is formed between the mirror housing 1 and the mirror handle 2 due to movable connection, when water is splashed or sprayed on rainy days, the water easily enters the mirror housing 1 and the mirror handle 2 from the gap, so that water leakage holes are usually formed on the mirror housing 1 or the mirror handle 2 of the rearview mirror, so that the water which accidentally permeates into the mirror housing 1 or the mirror handle 2 is discharged. In the running process of the vehicle, due to the existence of the water leakage hole, when the oncoming air flow blows through the water leakage hole, wind noise similar to whistle or hiss is easy to generate, the air flow is sharp and harsher, and due to the fact that the rearview mirror is closer to the main driving position, external noise enters the vehicle through the side window, the driver perceives more obviously, and the driving experience of drivers and passengers is seriously influenced.

Based on the structure, the rearview mirror shell structure capable of reducing wind noise is provided, so that the driving experience of a driver and the safety of the driver during driving are improved. The structure of the rear view mirror housing of the present invention will be described in detail with reference to specific embodiments.

Referring to fig. 1 and 2, an embodiment of the present invention provides a rearview mirror housing structure 100, which includes a mirror housing 1 and a mirror handle 2 that are connected to each other, wherein a first through hole 3 is disposed at a bottom end of the mirror housing 1 and/or the mirror handle 2, the first through hole 3 has a first hole wall 311 and a second hole wall 312 that are disposed opposite to each other, the first hole wall 311 is located on a windward side of the first through hole 3, and the first hole wall 311 is gradually far away from the second hole wall 312 along a top-to-bottom direction thereof.

Specifically, a detachable connection is typically formed between the mirror housing 1 and the mirror handle 2 by using a connection structure such as a rotation shaft or a folding mechanism, so that the mirror housing 1 can be rotated with respect to the mirror handle 2 to achieve folding and unfolding. The first through hole 3 is usually a small hole structure arranged at the bottom end of the lens housing 1 and/or the lens handle 2, and may be a water leakage hole arranged at the bottom end of the lens housing 1 and/or the lens handle 2, wherein the water leakage hole is usually arranged at the lowest position of the bottom end of the lens housing 1 and/or the lens handle 2 and is close to the front end of the lens housing 1 and/or the lens handle 2; the first through hole 3 may also be a maintenance hole disposed at the bottom end of the lens housing 1 and/or the lens handle 2, where the maintenance hole is a process hole structure for disassembling the lens housing 1/lens handle 2, and a maintenance person may extend into the maintenance hole by using, for example, a special tool such as a thimble to jack up a fastening structure disposed in the lens housing 1/lens handle 2 and used for locking the lens housing 1/lens handle 2, so as to disassemble the lens housing 1/lens handle 2, and facilitate maintenance of components in the lens housing 1/lens handle 2 by the maintenance person, where the maintenance hole is generally disposed at the bottom end of the lens housing 1/lens handle 2 and near the rear end of the lens housing 1/lens handle 2. In one example, as shown in fig. 1, a water leakage hole and a maintenance hole may be provided at the bottom end of the mirror housing 1; in other examples, a water leakage hole and a maintenance hole may be provided at the bottom end of the handle 2, which is not particularly limited herein.

More specifically, the first through hole 3 is generally a circular hole or an elliptical hole, and is generally disposed vertically, that is, the axis of the first through hole 3 is located in a vertical direction, the top end of the first through hole 3 (that is, the upper end of the first through hole 3) communicates with the inner space of the mirror housing structure 100, and the bottom end of the first through hole 3 (that is, the lower end of the first through hole 3) communicates with the outer space of the mirror housing structure 100. During running of the vehicle, the airflow flows from front to back (the dashed arrow in fig. 2 represents the flow direction of the airflow), so that the front side of the first through hole 3 (i.e., the side located in the front direction of the vehicle, which is also the side in the positive X-axis direction in fig. 1) is the windward side of the first through hole 3, correspondingly, the rear side of the first through hole 3 is the leeward side, and similarly, the front side of the mirror housing 1/the mirror handle 2 is the windward side of the mirror housing 1/the mirror handle 2, the rear side of the mirror housing 1/the mirror handle 2 is the leeward side of the mirror housing 1/the mirror handle 2, the first hole wall 311 is located at the front side of the first through hole 3, and the second hole wall 312 is located at the rear side of the first through hole 3, i.e., the first hole wall 311 and the second hole wall 312 are semi-surrounding structures. Moreover, the first hole wall 311 is gradually far away from the second hole wall 312 from the top end to the bottom end thereof, so that the first hole wall 311 is in a conical surface structure or a conical surface-like structure, and in the longitudinal section of the first through hole 3 (i.e. the section of the first through hole 3 on a plane passing through the axis of the first through hole 3), if the connection line between the upper end and the lower end of the first hole wall 311 is a diagonal line, as shown in fig. 2, the first hole wall 311 is in a conical surface structure, and if the connection line between the upper end and the lower end of the first hole wall 311 is a curve (including an arc line), the first hole wall 311 is in a conical surface-like structure. In addition, the second hole wall 312 may be a cylindrical surface or an elliptic cylindrical surface which is vertically arranged, or may be a conical surface structure or a conical surface-like structure which is obliquely arranged in a direction away from the first hole wall 311, and an example of the conical surface structure in which the second hole wall 312 is obliquely arranged rearward is given in fig. 2.

In this embodiment, the first through hole 3 may be disposed at the bottom end of the lens housing 1 and/or the lens handle 2 to serve as a water leakage hole and/or a maintenance hole, and meanwhile, the first hole wall 311 located on the windward side of the first through hole 3 is disposed gradually away from the second hole wall 312 along the direction from the top end to the bottom end thereof, so that the whole first hole wall 311 is in a conical surface structure or a conical surface-like structure disposed substantially obliquely forward, when the air flow flows from the front side of the first through hole 3 (i.e. the windward side of the first through hole 3) to the rear side, the first hole wall 311 disposed obliquely forward can smoothly guide the air flow to the rear side, so that the air flow is not easy to form a vortex when passing through the first through hole 3, but passes through the lower surface of the lens housing 1 or the lens handle 2, not only the impact of the air flow on the front side edge of the first through hole 3 can be reduced, but also the air flow entering the first through hole 3 can be reduced, thereby effectively improving the wind noise problem generated by the air flow impacting the edge of the first through hole 3 and penetrating into the rear housing structure 100, and greatly improving the safety of a driver and passengers.

Alternatively, as shown in connection with fig. 2, the second hole wall 312 is gradually distant from the first hole wall 311 in the top-to-bottom direction thereof.

Specifically, on the basis of the inclined arrangement of the first hole wall 311 with respect to the axial direction of the first through hole 3, the second hole wall 312 is also inclined so that the first through hole 3 is generally in a tapered hole structure or a taper-like hole structure with the small end facing upward and the large end facing downward as a whole.

In this embodiment, the second hole wall 312 located at the rear side of the first through hole 3 is gradually far away from the first hole wall 311 along the direction from the top end to the bottom end, so that the second hole wall 312 is inclined backward, when the first hole wall 311 guides the airflow to the rear side gently, the second hole wall 312 arranged obliquely backward can be used to guide the airflow blown onto the second hole wall 312 to the rear side of the first through hole 3 gently, so as to reduce the impact of the airflow to the rear side edge of the first through hole 3, and at the same time, the airflow is also convenient to pass through the gap between the mirror housing 1 and the mirror handle 2, thereby further reducing the airflow entering the first through hole 3 and further reducing the wind noise of the rearview mirror.

Alternatively, as shown in conjunction with fig. 2, the first hole wall 311 is inclined to the axial direction of the first through hole 3 to a smaller extent than the second hole wall 312 is inclined to the axial direction of the first through hole 3.

Specifically, in the longitudinal section of the first through hole 3, if the line between the upper end and the lower end of the first hole wall 311 and the line between the upper end and the lower end of the second hole wall 312 are both inclined straight lines, as shown in fig. 2, the inclination degree of the first hole wall 311 with respect to the axial direction of the first through hole 3 (hereinafter referred to simply as the inclination degree of the first hole wall 311) is smaller than the inclination degree of the second hole wall 312 with respect to the axial direction of the first through hole 3 (hereinafter referred to simply as the inclination degree of the second hole wall 312), it is understood that the inclination angle α of the first hole wall 311 is smaller than the inclination angle β of the second hole wall 312, where α is the angle between the first hole wall 311 and the vertical plane, β is the angle between the second hole wall 312 and the vertical plane, and α and β generally refer to the acute angle shown in fig. 2; if the connection line between the upper end and the lower end of the first hole wall 311 and the connection line between the upper end and the lower end of the second hole wall 312 are both curves, then the inclination degree of the first hole wall 311 is smaller than that of the second hole wall 312 can be understood that the curvature of the first hole wall 311 is larger than that of the second hole wall 312; if the connection line between the upper end and the lower end of the first hole wall 311 is an oblique straight line, and the connection line between the upper end and the lower end of the second hole wall 312 is a curve, the inclination degree of the first hole wall 311 is smaller than that of the second hole wall 312, which means that the inclination angle α of the first hole wall 311 is smaller than the included angle between the tangential plane and the vertical plane of the second hole wall 312; if the line between the upper end and the lower end of the first hole wall 311 is a curve and the line between the upper end and the lower end of the second hole wall 312 is an inclined straight line, the inclination of the first hole wall 311 is smaller than that of the second hole wall 312, which means that the included angle between the tangential plane and the vertical plane of the first hole wall 311 is smaller than the inclination angle β of the second hole wall 312.

In this embodiment, by setting the inclination of the first hole wall 311 with respect to the axial direction of the first through hole 3 to be smaller than the inclination of the second hole wall 312 with respect to the axial direction of the first through hole 3, the rear hole wall of the first through hole 3 is made more gentle than the front hole wall, so that the second hole wall 312 is facilitated to guide the air flow to the rear side of the first through hole 3, and the air flow is facilitated to pass through the gap between the mirror housing 1 and the mirror handle 2.

Further, as shown in fig. 2, the first hole wall 311 is in smooth transition connection with the outer surface of the lens shell 1 through the first arc surface 313, and the second hole wall 312 is in smooth transition connection with the outer surface of the lens shell 1 through the second arc surface 314. Thus, the edge of the first through hole 3 is in a smooth cambered surface structure, and vortex generated when the air flow impacts the edge of the first through hole 3 can be reduced, so that the wind noise of the rearview mirror is further reduced.

Alternatively, as shown in conjunction with fig. 2, the first through hole 3 includes a first through hole portion 31 and a second through hole portion 32, the first hole wall 311 and the second hole wall 312 enclose the first through hole portion 31, and the hole wall of the second through hole portion 32 extends upward in the vertical direction.

Specifically, the open area of the second through hole portion 32 is substantially uniform along the axial direction thereof, and it is generally a vertically disposed cylindrical hole or an elliptical cylindrical hole; the first through hole portion 31 is generally of a through hole structure having a small upper end opening and a large lower end opening, and the upper end of the first through hole portion 31 communicates with the lower end of the second through hole portion 32.

In the present embodiment, the first through-hole 3 is divided into the first through-hole portion 31 and the second through-hole portion 32, so that the lower half of the first through-hole 3 has a through-hole structure with a small upper end opening and a large lower end opening, and the upper half of the first through-hole 3 has a through-hole structure with a substantially uniform opening area in the axial direction, such as a cylindrical hole or an elliptic cylindrical hole. Like this, make first through-hole 3 can utilize first through-hole portion 31 to carry out gentle direction to the air current, simultaneously, through the pore wall with second through-hole portion 32 upwards extend the setting in vertical direction, in order to avoid first through-hole portion 31 and the intercommunication department of second through-hole portion 32 to form and be sharp-pointed edge structure (for example, when second through-hole portion 32 is the through-hole structure that upper end opening is big, lower extreme opening is little, the intercommunication department of first through-hole portion 31 and second through-hole portion 32 forms comparatively sharp-pointed edge structure), not only can avoid forming the sharp-pointed edge structure that produces the vortex easily in first through-hole 3, still make second through-hole portion 32 have great open area, thereby guarantee to have great drainage area as the water leakage hole at first through-hole 3, in order to improve drainage effect.

Further, as shown in fig. 2, the open area of the end of the second through hole portion 32 connected to the first through hole portion 31 is equal to the open area of the small end of the first through hole portion 31. In this way, the first through hole 3 can be prevented from forming a boss structure at the communication position of the first through hole part 31 and the second through hole part 32, so that the impact of air flow on the communication position of the first through hole part 31 and the second through hole part 32 can be reduced, and the wind noise of the rearview mirror can be further reduced.

Alternatively, the ratio of the opening depth of the first through hole portion 31 to the opening depth of the second through hole portion 32 is greater than or equal to 1.

The hole depth of the first through hole portion 31 (hereinafter referred to as "hole depth") refers to the dimension of the first through hole portion 31 in the axial direction thereof, and similarly, the hole depth of the second through hole portion 32 refers to the dimension of the second through hole portion 32 in the axial direction thereof, and the axial direction of the first through hole portion 31 and the axial direction of the second through hole portion 32 overlap each other and are the axial direction of the first through hole 3.

In the present embodiment, the ratio of the hole depth of the first through hole portion 31 to the hole depth of the second through hole portion 32 is 1 or more, and it is understood that the hole depth of the first through hole portion 31 is at least half the hole depth of the first through hole 3, for example, the case thickness of the mirror case 1 or the mirror handle 2 is generally 2mm or more, on the basis of which the hole depth of the first through hole portion 31 is generally set to 1mm or more and the hole depth of the second through hole portion 32 is generally set to 1mm. In this way, the first hole wall 311, the second hole wall 312, and the hole wall of the second hole wall 32 of the first hole portion 31 are ensured to have a sufficient guide length, so that the air flow can be smoothly guided.

Alternatively, as shown in connection with fig. 1, the mirror housing 1 includes a first mirror housing 11 and a second mirror housing 12 that are sequentially disposed in the vertical direction, the first through-hole 3 is provided on the second mirror housing 12, and the first mirror housing 11 is detachably connected with the second mirror housing 12.

In this embodiment, the first mirror housing 11 is located above the second mirror housing 12, and is typically connected to the second mirror housing 12 by a detachable connection, such as a snap-fit connection. When in use, the second mirror housing 12 can be disassembled to facilitate maintenance of the internal structure of the rearview mirror.

Optionally, as shown in fig. 1, 3 and 4, the bottom of the mirror housing 1 is further provided with a second through hole 4, the second through hole 4 is used for installing the ball head spindle 200, the second through hole 4 includes a first shaft hole 41, the first shaft hole 41 has a small end and a large end, the large end of the first shaft hole 41 is used for communicating with the external space of the mirror housing 1, and the open area of the first shaft hole 41 increases progressively along the direction from the small end of the first shaft hole 41 to the large end of the first shaft hole 41.

Specifically, the second through hole 4 may be a through hole directly formed in the bottom of the mirror housing 1, or may be a through hole surrounded by a flange structure 5 (described later) at the bottom of the mirror housing 1, and the second through hole 4 includes a first shaft hole 41 having a small upper end opening and a large lower end opening, and the opening area of the first shaft hole 41 gradually increases from top to bottom. For a normal rear view mirror with a rim, the mirror housing 1 is usually connected to an end of the mirror handle 2 facing away from the door, whereas for a non-rim rear view mirror capable of rotating up and down, left and right, the mirror housing 1 is rotatably connected to the upper side of the mirror handle 2 through the ball pivot 200, that is, the second through hole 4 is provided at the bottom of the mirror housing 1 of the non-rim rear view mirror, more specifically, at the bottom of the second mirror housing 12. In order to avoid interference with the ball pivot 200 during rotation of the mirror housing 1, the second through hole 4 is in a normal interference fit with the ball pivot 200, which creates a large cavity between the mirror housing 1 and the handle 2, and when the air flows from front to back (the dashed arrow in fig. 4 represents the flow direction of the air flow) to pass through the cavity structure at the ball pivot 200 during running of the vehicle, an impact is generated with the edge of the mirror housing 1 to form a vortex, thereby causing a problem of wind noise of the rearview mirror.

In this embodiment, the second through hole 4 for installing the ball pivot 200 may be provided at the bottom of the mirror housing 1, so that the mirror housing 1 may be applied to a rimless rearview mirror; moreover, through setting the first shaft hole portion 41 of the second through hole 4 to be gradually increased in the direction from the small end of the first shaft hole portion 41 to the large end of the first shaft hole portion 41 in the opening area, the edge of the second through hole 4 is smoother, so that when the air flow passes through the cavity structure at the ball head rotating shaft 200, under the guiding action of the hole wall of the first shaft hole portion 41, the air flow can more gradually pass through the gap between the lens shell 1 and the lens handle, the air flow impact at the edge of the bottom of the lens shell 1 can be reduced, the air flow entering the second through hole 4 can be reduced, and the wind noise of the rearview mirror at the second through hole 4 is reduced.

Alternatively, as shown in fig. 3 and 4, the second through hole 4 further includes a second shaft hole portion 42, the small end of the first shaft hole portion 41 communicates with the second shaft hole portion 42, and the hole wall of the second shaft hole portion 42 is provided extending upward in the vertical direction.

Specifically, the open area of the second shaft hole portion 42 is substantially uniform along the axial direction thereof, and it is generally a vertically disposed cylindrical hole or an elliptical cylindrical hole; the first shaft hole 41 is generally a through hole structure having a small upper end opening and a large lower end opening, and the upper end of the first shaft hole 41 communicates with the lower end of the second shaft hole 42.

In the present embodiment, the second through-hole 4 is divided into the first shaft hole 41 and the second shaft hole 42 so that the lower half of the first through-hole 3 has a small upper end opening and a large lower end opening, and the upper half of the first through-hole 3 has a through-hole structure in which the opening area, for example, a cylindrical hole or an elliptic cylindrical hole, is substantially uniform in the axial direction. Like this, make first through-hole 3 can utilize first through-hole portion 31 to carry out gentle direction to the air current, simultaneously, through the pore wall with second through-hole portion 32 upwards extend the setting in vertical direction, in order to avoid first through-hole portion 31 and the intercommunication department of second through-hole portion 32 to form and be sharp-pointed edge structure (for example, when second through-hole portion 32 is the through-hole structure that upper end opening is big, lower extreme opening is little, the intercommunication department of first through-hole portion 31 and second through-hole portion 32 forms comparatively sharp-pointed edge structure), not only can avoid forming the sharp-pointed edge structure that produces the vortex easily in first through-hole 3, still make second through-hole portion 32 have great open area, thereby guarantee to have great drainage area as the water leakage hole at first through-hole 3, in order to improve drainage effect.

Further, as shown in fig. 4, the first shaft hole 41 has a third hole wall 411, the third hole wall 411 encloses the first shaft hole 41, and the third hole wall 411 extends downward along a vertical direction and is far away from an axis of the first shaft hole 41.

In this embodiment, the third hole wall 411 is in a closed annular structure, and extends downward in the vertical direction and is far away from the center of the first shaft hole 41, so that the circumferential parts of the third hole wall 411 are all inclined, i.e. the front end part of the third hole wall 411 is inclined forward, the rear end part of the third hole wall 411 is inclined backward, the left end part of the third hole wall 411 is inclined left, and the right end part of the third hole wall 411 is inclined right; the inclination angle θ of the third hole wall 411 is an included angle between the third hole wall 411 and the vertical plane, and is generally an acute angle shown in fig. 4. In this way, when the airflow is smoothly guided to the rear by the front end portion of the third hole wall 411 which is obliquely provided forward, the airflow blown onto the third hole wall 411 can be smoothly guided to the rear side of the second through hole 4 by the rear end portion of the third hole wall 411 which is obliquely provided rearward, so that the impact of the airflow to the edge of the second through hole 4 is reduced, and at the same time, the airflow is facilitated to pass through the gap between the mirror housing 1 and the mirror handle 2, so that the airflow entering the second through hole 4 can be further reduced, and the wind noise of the rearview mirror at the second through hole 4 can be further reduced.

Further, as shown in fig. 3 and 4, the opening area of the end of the second shaft hole portion 42 connected to the first shaft hole portion 41 is equal to the opening area of the small end of the first shaft hole portion 41. In this way, the second through hole 4 can be prevented from forming a boss structure at the communication position of the first shaft hole 41 and the second shaft hole 42, so that the impact of air flow on the communication position of the first shaft hole 41 and the second shaft hole 42 can be reduced, and the wind noise of the rearview mirror at the second through hole 4 can be further reduced.

Further, the third hole wall 411 is in smooth transition connection with the outer surface of the lens housing 1 through the third cambered surface 43. In this way, the edge of the second through hole 4 is in a smooth cambered surface structure, so that vortex generated when the airflow impacts the edge of the second through hole 4 can be further reduced, and wind noise of the rearview mirror at the second through hole 4 is further reduced.

Optionally, as shown in fig. 1 and fig. 3, the bottom of the mirror housing 1 is further provided with a flanging structure 5, and the flanging structure 5 encloses the second through hole 4 and is located in the inner space of the mirror housing 1.

In the present embodiment, since the second through-hole 4 is used for mounting the ball pivot 200, the open area of the second through-hole 4 is much larger than that of the first through-hole 3. If the second through hole 4 is formed by directly forming a hole in the housing of the lens housing 1, the cavity at the ball pivot 200 is easily enlarged, and thus moisture is easily blown into the lens housing 1 along with the airflow. Therefore, in this embodiment, a central hole is generally formed at the bottom of the mirror housing 1, and a circle of flanging structure 5 is disposed at the edge of the central hole, and the flanging structure 5 is utilized to enclose the second through hole 4, so that the structural strength of the second through hole 4 and the bottom wall edge of the mirror housing 1 can be increased, the cavity volume at the ball pivot 200 can be reduced under the condition that the ball pivot 200 is not interfered when the mirror housing 1 rotates, so that the probability that moisture is blown into the mirror housing 1 along with the air flow is reduced, and the hole wall area and the height of the second through hole 4 can be increased, so that the guiding area of the second through hole 4 is increased, the air flow can be guided to the rear more smoothly, and the air flow can pass through the lower surface of the mirror housing 1 more smoothly, so as to achieve the purpose of reducing the wind noise of the rearview mirror at the second through hole 4. In addition, compare with the turn-ups structure 5 setting in the outside of mirror shell 1, set up the turn-ups structure 5 in the inside of mirror shell 1, on the one hand can hide turn-ups structure 5, improve aesthetic measure, on the other hand can reduce the impact of air current to impact turn-ups structure 5 to reduce the impact of air current to mirror shell 1 bottom edge.

Optionally, the raised height of the flanging structure 5 is greater than or equal to 5mm.

In this embodiment, the flanging structure 5 is generally bent upwards, so the protruding height of the flanging structure 5 refers to the dimension of the flanging structure 5 in the vertical direction, and the protruding height of the flanging structure 5 reflects the hole depth of the first shaft hole portion 41 of the second through hole 4, so the protruding height of the flanging structure 5 is greater than or equal to 5mm and is equivalent to the hole depth of the first shaft hole portion 41 being greater than or equal to 5mm. In this way, the hole wall of the first shaft hole 41 has a sufficient guiding length, so that the air flow flowing through the edge of the second through hole 4 can be better guided backward smoothly, the impact of the air flow on the edge of the second through hole 4 and the air flow entering the second through hole 4 can be reduced, and the wind noise of the rearview mirror can be reduced.

Alternatively, as shown in conjunction with fig. 4, the burring structure 5 includes a first burring portion 51 and a second burring portion 52, the first burring portion 51 surrounding the first shaft hole portion 41, the second burring portion 52 surrounding the second shaft hole portion 42, and extending in a direction away from the first burring portion 51 in the axial direction of the second through hole 4.

Specifically, the first burring 51 surrounds the first shaft hole 41 having a substantially tapered hole structure, and the second burring 52 surrounds the second shaft hole 42 having a substantially cylindrical hole or an elliptical hole.

In this embodiment, on the basis of adopting the first flanging portion 51 to enclose the first shaft hole portion 41, the second flanging portion 52 is utilized to enclose the second shaft hole portion 42, so as to further increase the structural strength of the bottom wall edge of the mirror housing 1, and the second flanging portion 52 is extended along the axial direction of the second through hole 4 in a direction away from the first flanging portion 51, so as to increase the hole wall area and the height of the second shaft hole portion 42, thereby further increasing the guiding area of the second through hole 4, enabling the air flow to pass through the lower surface of the mirror housing 1 more smoothly, and reducing wind noise. Meanwhile, compared with the second flange portion 52 extending along the axial direction perpendicular to the second through hole 4, in this embodiment, the second flange portion 52 extends along the axial direction of the second through hole 4 in a direction away from the first flange portion 51, so that the extending direction of the second flange portion 52 is nearly parallel to the flow direction of the air flow entering the first shaft hole portion 41, thereby reducing the impact of the air flow entering the inside of the mirror housing 1 from the first shaft hole portion 41 on the second flange portion 52, and further reducing the wind noise of the rearview mirror at the second through hole 4.

Another embodiment of the present invention provides a vehicle comprising a rearview mirror housing structure 100 as described above.

In this embodiment, the vehicle includes a rearview mirror assembly, the rearview mirror assembly includes a rearview mirror housing structure 100 and a lens, the lens is mounted on a mirror frame of the rearview mirror housing structure 100, the rearview mirror housing structure 100 includes a mirror housing 1 and a mirror handle 2, and the mirror housing 1 is detachably connected with the mirror handle 2. For a framed rearview mirror assembly, the mirror casing 1 is typically attached to the side of the mirror handle 2 facing away from the door (i.e., either the left or right side of the mirror handle 2); for the frameless rearview mirror assembly, the rearview mirror assembly further comprises a ball head rotating shaft 200, and the mirror shell 1 is rotatably connected above the mirror handle 2 through the ball head rotating shaft 200. In addition, the beneficial effects of the vehicle in the present embodiment with respect to the prior art are the same as those of the rearview mirror housing structure 100 described above, and will not be repeated here.

Although the invention is disclosed above, the scope of the invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications will fall within the scope of the invention.

Claims (10)

1. The utility model provides a rear-view mirror shell structure, its characterized in that, including interconnect's mirror shell (1) and mirror handle (2), mirror shell (1) and/or mirror handle (2) bottom is equipped with first through-hole (3), first through-hole (3) have first pore wall (311) and second pore wall (312) of relative setting, first pore wall (311) are located the windward side of first through-hole (3), just first pore wall (311) are kept away from gradually along the direction of its top to bottom second pore wall (312).

2. A rear view mirror housing structure according to claim 1, characterized in that the second hole wall (312) is gradually distant from the first hole wall (311) in its top-to-bottom direction.

3. A rear view mirror housing structure according to claim 2, characterized in that the first hole wall (311) is inclined to the axial direction of the first through hole (3) to a smaller extent than the second hole wall (312) is inclined to the axial direction of the first through hole (3).

4. The rearview mirror housing structure according to claim 1, wherein the first through hole (3) includes a first through hole portion (31) and a second through hole portion (32), the first through hole portion (31) is surrounded by the first hole wall (311) and the second hole wall (312), and the hole wall of the second through hole portion (32) extends upward in a vertical direction.

5. The rearview mirror housing structure according to claim 4, wherein the ratio of the opening depth of the first through hole portion (31) to the opening depth of the second through hole portion (32) is greater than or equal to 1.

6. The rearview mirror housing structure according to claim 1, wherein the bottom of the mirror housing (1) is further provided with a second through hole (4), the second through hole (4) is used for installing a ball head rotating shaft (200), the second through hole (4) comprises a first shaft hole (41), the first shaft hole (41) is provided with a small end and a large end, the large end of the first shaft hole (41) is used for being communicated with an external space of the mirror housing (1), and the opening area of the first shaft hole (41) is gradually increased from the small end of the first shaft hole (41) to the large end of the first shaft hole (41).

7. The rearview mirror housing structure according to claim 6, wherein the second through hole (4) further includes a second shaft hole portion (42), the small end of the first shaft hole portion (41) communicates with the second shaft hole portion (42), and the hole wall of the second shaft hole portion (42) is provided extending upward in the vertical direction.

8. A rear-view mirror housing structure according to claim 6, characterized in that the bottom of the mirror housing (1) is further provided with a flange structure (5), the flange structure (5) enclosing the second through hole (4) and being located in the inner space of the mirror housing (1).

9. A rear view mirror housing structure according to claim 8, characterized in that the raised height of the flange structure (5) is greater than or equal to 5mm.

10. A vehicle comprising a rear view mirror housing structure as claimed in any one of claims 1 to 9.