Borderless Rearview Mirror and Vehicle

By setting the gap and water barrier between the mirror shell and the mirror seat in the frameless rearview mirror, combined with the flow diversion structure, the problems of wind noise and blurred lenses are solved, and driving safety and ride experience are improved.

CN115071568BActive Publication Date: 2025-07-25ZHEJIANG GEELY HLDG GRP CO LTD +1
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Patent Information

Application Number
CN202210795011.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-07
Publication Date
2025-07-25
Estimated Expiration
2042-07-07

AI Technical Summary

Technical Problem

The frameless rearview mirror is prone to wind noise and blurred lens problems during the car driving, affecting driving safety and ride experience.

Method used

A gap is provided between the mirror shell and the mirror seat, and a water barrier is provided on the side of the mirror shell close to the opening. A flow guide structure is provided on the mirror shell to disperse the air flow and guide the water flow, reducing the possibility of vortex and water droplets flowing to the lens.

Benefits of technology

It effectively reduces car wind noise, prevents water from flowing to the lens, and improves driving vision and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a frameless rearview mirror and an automobile. The frameless rearview mirror includes a mirror base, a mirror housing, and a lens. The mirror base is used for being mounted on the vehicle body of the automobile. The mirror housing is mounted on the mirror base, and there is a gap between the mirror housing and the mirror base. The mirror housing has an opening, and the lens is mounted at the opening. A water blocking rib is provided on the side of the mirror housing close to the opening to block the water flow on the mirror housing from flowing onto the lens. The technical solution of the present invention can improve the structure of the frameless rearview mirror to reduce wind noise.
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Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a frameless rearview mirror and an automobile. Background Art

[0002] The exterior rearview mirror is a component installed on both sides of the car to help the driver observe the situation behind the car. It is an important safety accessory for the car during driving. As a means of transportation, the safety and reliability of the car are the first consideration. However, with the popularization of cars, it is no longer just a means of transportation. Customers begin to pay attention to user experience (such as comfort and controllability) and the beauty and fashion of the appearance. People's pursuit of all aspects of cars has promoted the rapid development of automobile-related technologies. Similarly, the performance of the exterior rearview mirror is directly related to driving safety. At the same time, as an external part, the appearance also directly affects people's vision, so it also attracts people's attention.

[0003] In the prior art, the exterior rearview mirrors often have a wide frame, which not only affects the appearance of the exterior rearview mirror, but also reduces the lens area of the rearview mirror, affecting the user's field of vision. Therefore, a new type of frameless rearview mirror has emerged. Due to the particularity of its shape, the structural design of the frameless rearview mirrors currently on the market is not perfect, resulting in many defects of the rearview mirrors, such as the possibility of generating a large noise during the driving of the car. Summary of the invention

[0004] The main purpose of the present invention is to provide a frameless rearview mirror, aiming to improve the structure of the frameless rearview mirror to reduce wind noise.

[0005] To achieve the above object, the frameless rearview mirror proposed by the present invention comprises:

[0006] Mirror mount, used for mounting on the body of the car;

[0007] A mirror housing, wherein the mirror housing is mounted on the mirror base, and a gap is formed between the mirror housing and the mirror base. The mirror housing has an opening, and a water retaining rib is provided on a side of the mirror housing close to the opening to prevent water from flowing on the mirror housing to the lens; and

[0008] A lens is installed at the opening.

[0009] Optionally, a distance between two opposite end faces of the mirror base and the mirror housing is greater than or equal to 10 mm and less than or equal to 20 mm.

[0010] Optionally, a spoiler rib is further provided on the end surface of the mirror housing facing the mirror seat, so as to disperse the airflow flowing between the mirror housing and the mirror seat.

[0011] Optionally, when the water-blocking rib is provided on the end face of the mirror housing facing the mirror base and the turbulence rib is close to the opening, the water-blocking rib serves as the turbulence rib.

[0012] Optionally, the protruding height of the turbulence rib is greater than or equal to 3 mm and less than or equal to 8 mm.

[0013] Optionally, a diversion structure is provided on the side of the mirror housing away from the mirror base, and the diversion structure is close to the opening.

[0014] Optionally, the diversion structure includes a first diversion groove and a second diversion groove provided on the groove wall of the first diversion groove. The first diversion groove extends along the edge of the opening, and the second diversion groove extends along the extension direction of the first diversion groove.

[0015] Optionally, the contour line of the cross-section of the first diversion groove is divided into five consecutive arcs from the edge of the groove opening of the first diversion groove towards the bottom of the first diversion groove. The third arc and the fourth arc are the contour lines of the side of the second diversion groove facing the first diversion groove, and at least one of the five arcs is a convex arc protruding into the first diversion groove.

[0016] Optionally, the five arcs are respectively a first convex arc, a second convex arc, a third concave arc, a fourth concave arc and a fifth convex arc. The first convex arc is located near the edge of the groove opening of the first diversion groove, and the third concave arc and the fourth concave arc are the contour lines of the side of the second diversion groove facing the first diversion groove.

[0017] Optionally, the curvature of the first convex arc is greater than or equal to 0.6 and less than or equal to 1.2; and / or,

[0018] the curvature of the second convex arc is greater than or equal to 0.5 and less than or equal to 1.1; and / or,

[0019] the curvature of the third concave arc is greater than or equal to 0.5 and less than or equal to 1.1; and / or,

[0020] the curvature of the fourth concave arc is greater than or equal to 1.1 and less than or equal to 1.7; and / or,

[0021] the curvature of the fifth convex arc is greater than or equal to 1.2 and less than or equal to 1.8.

[0022] Optionally, a guiding surface is provided on the side of the opening of the first diversion groove close to the lens, and the guiding surface is a curved surface; and / or,

[0023] The depth of the first diversion groove is set to become shallower from the middle part of the first diversion groove towards both ends respectively, and the middle part of the first diversion groove is located at the top of the opening.

[0024] The present invention also provides an automobile, including a vehicle body and the frameless rearview mirror as described above, and the frameless rearview mirror is installed on the vehicle body.

[0025] Optionally, the automobile further includes a water deflector installed on the vehicle body, and the upper end surface of the mirror base of the frameless rearview mirror is flush with the upper end surface of the water deflector.

[0026] The technical solution of the present invention is to provide an opening on the mirror housing, and the lens is installed at the opening. The mirror base is installed on the vehicle body of the automobile, and the mirror housing is installed on the mirror base. And there is a gap between the mirror housing and the mirror base. When the air flow passes through the gap between the mirror housing and the mirror base, it can flow out from the gap, thereby reducing the possibility of forming a vortex when the air flow passes through the connection between the mirror housing and the mirror base, and reducing the wind noise of the automobile. And a water retaining rib is provided on the side of the mirror housing close to the opening. When it rains, or when the automobile encounters splashing water during driving, due to the obstruction of the frameless part, the water flow is likely to flow along the smooth outer contour surface of the mirror housing to the lens. At this time, due to the function of the water retaining rib, the water can be effectively blocked from flowing to the lens, thereby improving the structure of the frameless rearview mirror to reduce the wind noise and prevent the water from flowing along the mirror housing to the lens. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0028] Figure 1 It is a schematic structural diagram of an angle of an embodiment of the frameless rearview mirror of the present invention;

[0029] Figure 2 It is Figure 1 a schematic structural diagram of another angle of the frameless rearview mirror in

[0030] Figure 3 It is Figure 1 a partial enlarged view of the diversion groove in the frameless rearview mirror;

[0031] Figure 4 It is Figure 1 a cross-sectional contour diagram of the diversion groove in the frameless rearview mirror.

[0032] Explanation of the Reference Numerals in the Drawings:

[0033]

[0034]

[0035] The realization, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0039] With the rapid development of the automotive industry and the continuous popularization of vehicles, people have higher and higher requirements for the quality of vehicles, and they are also more and more picky about the appearance of vehicles. An edgeless rearview mirror 100 has emerged as the times require. Compared with traditional rearview mirrors, the edgeless rearview mirror 100 does not have a frame, which not only increases the appearance value of the rearview mirror, but also increases the area of the rearview mirror, thereby increasing the observation field of view of the driver, which is beneficial to making correct judgments on the situation around the vehicle and making driving safer; at the same time, when encountering bumpy roads such as mountain roads, the rearview mirror can still be used normally to ensure driving safety.

[0040] However, due to the special shape of the frameless rearview mirror 100, an opening is directly formed in the mirror housing 120, the lens 130 is installed at the opening, and the mirror housing 120 is directly installed above the mirror base 110. It is difficult to form a relatively smooth outer contour at the connection of the mirror housing 120 and the housing of the mirror base 110, and the overall contour is sunken towards the connection of the mirror housing 120 and the mirror base 110. When the vehicle is running, when the airflow passes through the connection of the mirror housing 120 and the mirror base 110, eddy currents are extremely likely to be formed, causing a lot of noise and greatly affecting the riding experience of passengers. Moreover, since there is no frame to block the frameless rearview mirror 100, the moisture flowing through the mirror housing 120 easily flows along the contour of the mirror housing 120 to the lens 130, making the lens 130 blurred, so that the driver cannot observe the road conditions well through the rearview mirror, posing a great safety hazard.

[0041] In view of this, the present invention proposes a frameless rearview mirror 100, aiming to improve the structure of the frameless rearview mirror 100 to reduce wind noise and the possibility of the lens 130 becoming blurred.

[0042] In an embodiment of the present invention, as Figure 1 and Figure 2 shown, the frameless rearview mirror 100 includes a mirror base 110, a mirror housing 120 and a lens 130. The mirror base 110 is used for installing on the vehicle body 200. The mirror housing 120 is installed on the mirror base 110, and there is a gap between the mirror housing 120 and the mirror base 110. The mirror housing 120 has an opening, and the lens 130 is installed at the opening. A water blocking rib 121 is provided on the side of the mirror housing 120 close to the opening to block the water flow on the mirror housing 120 from flowing to the lens 130.

[0043] Among them, one end of the mirror housing 120 is open, and the lens 130 is installed at the opening, and no frame is provided at the opening. On the one hand, the appearance of the frameless rearview mirror 100 is improved. On the other hand, it also reduces the possibility of the frame blocking the line of sight of the rearview mirror when the driver looks at the rearview mirror, increases the observation field of view of the driver, is conducive to the driver making correct judgments on the situation around the vehicle, and makes driving safer. The mirror housing 120 is installed on the mirror base 110 through the mounting posts 140. One end of the mounting post 140 is installed on the mirror base 110, and the other end is used to fix the mirror housing 120, so that the mirror housing 120 is not directly installed on the mirror base 110. And due to the existence of the mounting posts 140, there is a gap between the mirror housing 120 and the mirror base 110. When the air flow passes between the mirror housing 120 and the mirror base 110, it can flow out from the gap, thereby reducing the possibility of forming eddy currents when the air flow passes through the connection between the mirror housing 120 and the mirror base 110 and reducing the wind noise of the vehicle. And a water blocking rib 121 is provided on the side of the mirror housing 120 close to the opening. The water blocking rib 121 can effectively block the water flow from flowing along the mirror housing 120 to the lens 130. When it rains, or when the vehicle encounters splashing water during driving, due to the lack of a frame to block, the water flow is likely to flow along the smooth outer contour surface of the mirror housing 120 to the lens 130. At this time, due to the function of the water blocking rib 121, the water flow can be effectively blocked from flowing to the lens 130. And an inclined guiding surface can be provided on the side of the water blocking rib 121 away from the opening. The thickness of the water blocking rib 121 becomes smaller in the direction away from the mirror housing 120, and the guiding surface is an arc surface, so that the water is more likely to drip down along the contour of the water blocking rib 121.

[0044] Furthermore, the water blocking rib 121 is provided on the side of the mirror housing 120 facing the mirror base 110. When the vehicle is driving, the oncoming splashing water is likely to flow along the smooth outer contour surface of the mirror housing 120. And due to the smooth setting of the outer contour surface of the mirror housing 120, the splashing water will flow to the bottom of the mirror housing 120 due to its own weight and the guiding effect of the outer contour surface of the mirror housing 120, and is pushed by the resistance wind during the vehicle driving to blow the water at the bottom onto the lens 130. Therefore, setting the water blocking rib 121 on the side of the mirror housing 120 facing the mirror base 110 can effectively block the water flow from flowing to the lens 130.

[0045] In this embodiment, the water blocking rib 121 is integrally injection-molded on the mirror housing 120, which not only reduces the installation process of installing the water blocking rib 121 on the mirror housing 120, but also enhances the installation stability of the water blocking rib 121 and reduces the possibility of the water blocking rib 121 falling off from the mirror housing 120. Of course, in other embodiments, the water blocking rib 121 can also be installed on the mirror housing 120 by bonding or clamping.

[0046] The technical solution of the present invention is to provide an opening on the mirror housing 120, and the lens 130 is installed at the opening. The mirror base 110 is installed on the vehicle body 200, and the mirror housing 120 is installed on the mirror base 110. There is a gap between the mirror housing 120 and the mirror base 110. When the air flow passes through the gap between the mirror housing 120 and the mirror base 110, it can flow out from the gap, thereby reducing the possibility of eddy current formation when the air flow passes through the connection between the mirror housing 120 and the mirror base 110, and reducing the wind noise of the vehicle. And a water retaining rib 121 is provided on the side of the mirror housing 120 close to the opening. When it rains, or when the vehicle encounters splashing water during driving, due to the lack of a border frame to block, the water flow is likely to flow along the smooth outer contour surface of the mirror housing 120 to the lens 130. At this time, due to the function of the water retaining rib 121, the water flow can be effectively blocked from flowing to the lens 130. Thereby improving the structure of the frameless rearview mirror 100 to reduce wind noise and block water from flowing along the mirror housing 120 to the lens 130.

[0047] To further reduce the wind noise of the vehicle, in one embodiment, the distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 is greater than or equal to 10 mm and less than or equal to 20 mm. Specifically, referring to Figure 2 , the distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 is D. The distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 is the gap between the mirror base 110 and the mirror housing 120. If the distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 is less than 10 mm, the gap between the mirror base 110 and the mirror housing 120 is too small, which is not conducive to the passage of air flow and is likely to form eddy current and generate greater wind noise; if the distance between the first end face and the second end face 122 is greater than 20 mm, the gap between the mirror base 110 and the mirror housing 120 is too large. On the one hand, it does not conform to the conventional shape of the rearview mirror and affects its aesthetics. On the other hand, the installation post 140 is too long, which is not conducive to the stable installation of the mirror housing 120. When the vehicle speed is too high or the wind speed is relatively high, it is easy to make the mirror housing 120 drive the lens 130 to shake.

[0048] The distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 can be 10 mm, 12 mm, 14 mm, 15 mm, 17 mm, 20 mm, etc. Of course, in other embodiments, the distance between the two opposite end faces of the mirror base 110 and the mirror housing 120 can also be less than 10 mm, or greater than 20 mm.

[0049] In one embodiment, a spoiler rib 122 is further provided on the end face of the mirror housing 120 facing the mirror base 110, which is used to disperse the air flow passing through the gap between the mirror housing 120 and the mirror base 110. When the air flow passes through the gap between the mirror base 110 and the mirror housing 120, through the action of the spoiler rib 122, the flow direction of the air flow can be disrupted, so that the air flow exchange process is disrupted and it is not easy to generate eddy current, thereby reducing the wind noise.

[0050] Moreover, the spoiler rib 122 and the water baffle rib 121 are both located on the mirror housing 120. In an embodiment, when the water baffle rib 121 is provided on the end face of the mirror housing 120 facing the mirror base 110 and the spoiler rib 122 is close to the opening, the water baffle rib 121 serves as the spoiler rib 122. That is, the water baffle rib 121 itself not only has the function of blocking water but also has the function of guiding the flow. This not only simplifies the structure of the mirror housing 120 but also ensures the flatness of the outer surface of the mirror housing 120 to a greater extent, avoids the formation of a concave area formed by the enclosure between the spoiler rib 122 and the water baffle rib 121, reduces the possibility of the formation of eddy currents, and further reduces the wind noise of the vehicle.

[0051] To further reduce the wind noise, in an embodiment, the protruding height of the spoiler rib 122 is greater than or equal to 3 mm and less than or equal to 8 mm. If the protruding height of the spoiler rib 122 is less than 3 mm, it is difficult to achieve a good flow guiding effect; if the protruding height of the spoiler rib 122 is greater than 8 mm, the protruding height of the spoiler rib 122 is too high, resulting in too small a distance between the side of the spoiler rib 122 far from the mirror housing 120 and the mirror base 110, which is not conducive to the passage of air flow and is prone to the formation of eddy currents and generate greater wind noise; and the too high height of the spoiler rib 122 forms a large height difference, which may cause a sharp change in the air flow velocity, thereby forming a low-speed area and causing disordered eddy currents, further generating wind noise.

[0052] The protruding height of the spoiler rib 122 can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, or 8 mm. Of course, in other embodiments, the protruding height of the spoiler rib 122 is less than 3 mm or greater than 8 mm.

[0053] To further guide the flow of the water flowing through the mirror housing 120 and reduce the possibility of the water flowing to the lens 130, in an embodiment, with reference to Figures 1 to 3 , a flow guiding structure is provided on the side of the mirror housing 120 far from the mirror base 110, and the flow guiding structure is close to the opening. Thus, the flow of the water flowing through the mirror housing 120 is guided, and the possibility of the water flowing to the lens 130 is reduced.

[0054] Furthermore, the flow guiding structure includes a first flow guiding groove 123 and a second flow guiding groove 124 provided on the groove wall of the first flow guiding groove 123. The first flow guiding groove 123 extends along the edge of the opening, and the second flow guiding groove 124 extends along the extending direction of the first flow guiding groove 123. Specifically, the first flow guiding groove 123 is provided on the side of the mirror housing 120 far from the mirror base 110, that is, located at the top of the mirror housing 120 and close to the opening. And in order to further guide the water flow and facilitate the water flow in the flow guiding groove to slide down from the mirror housing 120, the first flow guiding groove 123 extends along the edge of the opening and extends downward a certain distance from the top of the mirror housing 120. The second flow guiding groove 124 is opened on the groove wall of the first flow guiding groove 123, thereby improving the profile of the groove wall of the first flow guiding groove 123, making it difficult for the air flow to form eddy currents in the groove of the flow guiding groove, and thus reducing the wind noise of the vehicle.

[0055] In another embodiment, the diversion structure may be a diversion plate provided on the lens housing 120. The diversion plate has a plurality of arc-shaped convex portions protruding relative to the lens housing 120, and a diversion channel is formed between any two arc-shaped convex portions, so that the water flow slides along the diversion channel, reducing the possibility of the water flow flowing to the lens 130.

[0056] To ensure the diversion effect of the first diversion groove 123 and the second diversion groove 124, in one embodiment, the contour line of the cross-section of the first diversion groove 123 is divided into five consecutive arcs 125 along the edge of the notch of the first diversion groove 123 towards the bottom of the first diversion groove 123. The third arc 125 and the fourth arc 125 are the contour lines of the side of the second diversion groove 124 facing the first diversion groove, and at least one of the five arcs 125 is a convex arc protruding into the first diversion groove 123. The convex arc is used to better guide the air flow, reducing the possibility of the air flow forming a vortex in the first diversion groove 123 and further reducing the wind noise.

[0057] Further, the five arcs are respectively a first convex arc 125a, a second convex arc 125b, a third concave arc 125c, a fourth concave arc 125d and a fifth convex arc 125e. The first convex arc 125a is located near the edge of the notch of the first diversion groove 123. The third concave arc 125c and the fourth concave arc 125d are the contour lines of the side of the second diversion groove 124 facing the first diversion groove 123. Specifically, the first convex arc 125a and the second convex arc 125b play a guiding role, thus guiding the water flow and the air flow, making the water flow more likely to flow into the first diversion groove 123 and guiding the flow of the air flow, so that the air flow will not be disordered and form a vortex due to the depression of the first diversion groove 123 in the lens housing 120. The third concave arc 125c and the fourth concave arc 125d are the contour lines of the side of the second diversion groove 124 facing the first diversion groove 123. To improve the internal contour of the first diversion groove 123, and because both the third concave arc 125c and the fourth concave arc 125d are concave arcs, and due to the function of the fifth convex arc 125e, the plane where the connection of the fourth concave arc 125d and the fifth convex arc 125e is located is higher than the plane where the connection of the third concave arc 125c and the fourth concave arc 125d is located, so that the contour of the second diversion groove 124 relative to the first diversion groove 123 is recessed inward near the middle part and smoothly extends outward at the opening, better guiding the air flow, reducing the possibility of the air flow forming a vortex in the first diversion groove 123 and further reducing the wind noise.

[0058] In an embodiment, the curvature of the first convex arc 125a is greater than or equal to 0.6 and less than or equal to 1.2. The curvature of the second convex arc 125b is greater than or equal to 0.5 and less than or equal to 1.1. The curvature of the third concave arc 125c is greater than or equal to 0.5 and less than or equal to 1.1. The curvature of the fourth concave arc 125d is greater than or equal to 1.1 and less than or equal to 1.7. The curvature of the fifth convex arc 125e is greater than or equal to 1.2 and less than or equal to 1.8. The magnitude of the curvature affects the formation of the profiles of the first flow guide groove 123 and the second flow guide groove 124. If the curvature of the first convex arc 125a, the second convex arc 125b, the third concave arc 125c, the fourth concave arc 125d, and the fifth convex arc 125e is too large or too small, it may be difficult for the profiles of the first flow guide groove 123 and the second flow guide groove 124 to well guide the movement of the air flow, thereby generating eddy currents and causing wind noise.

[0059] Among them, the curvature of the first convex arc 125a can be 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, etc.; the curvature of the second convex arc 125b can be 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, etc.; the curvature of the third concave arc 125c can be 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, etc.; the curvature of the fourth concave arc 125d can be 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, etc., and the curvature of the fifth convex arc 125e can be 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, etc.

[0060] With reference to Figure 3 and Figure 4 , in an embodiment, a guide surface 126 is provided on one side of the opening of the first flow guide groove 123 and close to the lens 130, and the guide surface 126 is a curved surface. The first guide surface 126 can provide a guiding effect for the flow of water. When the water droplet reaches the opening edge, due to the guiding effect of the guide surface 126, the water flow flows into the first flow guide groove 123 along the guide surface 126, so as to reduce the possibility of the water flow flowing to the lens 130. And since the guide surface 126 is a curved surface, it further reduces the possibility of having sharp corners on the surface of the lens housing 120, making the surface of the lens housing 120 a continuous and smooth surface as a whole, thereby guiding the air flow and reducing the possibility of the air flow being disrupted, causing air flow disorder, and forming eddy currents.

[0061] In an embodiment, the depth of the first flow guide groove becomes shallower from the middle of the first flow guide groove 123 to both ends, and the middle of the first flow guide groove 123 is located at the top of the opening. The first flow guide groove 123 is gradually shallowed, that is, the first flow guide groove 123 gradually becomes shallower towards both sides, so as to gradually reduce the water storage capacity of the first flow guide groove 123 and make the water flow gradually flow out of the first flow guide groove 123.

[0062] With reference to Figure 1 , in one embodiment, the frameless rearview mirror 100 further includes a mounting base 150 which is mounted on the vehicle body 200, and the mirror base 110 is mounted on the mounting base 150. Mounting the mirror base 110 on the vehicle body 200 through the mounting base 150 facilitates determining the mounting position of the rearview mirror. On the other hand, it increases the contact area between the mirror base 110 and the vehicle body 200, enhancing the mounting stability of the rearview mirror. In this embodiment, the mounting base 150 is the triangular trim of the front car door 210.

[0063] The present invention also provides a vehicle which includes a vehicle body 200 and a frameless rearview mirror 100. The specific structure of the frameless rearview mirror 100 refers to the above embodiment. Since this vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one. Among them, the frameless rearview mirror 100 is mounted on the vehicle body 200.

[0064] In one embodiment, the vehicle further includes a car door 210, a window 220 and a water deflector 230 mounted on the vehicle body 200. The upper end surface of the mirror base 110 of the frameless rearview mirror 100 is flush with the upper end surface of the water deflector 230. Specifically, the water deflector 230 is generally arranged between the window 220 and the car door 210. The frameless rearview mirror 100 includes a mounting base 150, a mirror base 110 and a mirror housing 120. The mounting base 150 is mounted on the car door 210, the end of the mirror base 110 is mounted on the mounting base 150, and the mirror housing 120 is mounted on the mirror base 110. The upper end surface of the mirror base 110 being flush with the upper end surface of the water deflector 230 enables an air flow to be formed when the air passes between the mirror base 110 and the water deflector 230. If the first end surface of the mirror base 110 facing the mirror housing 120 is higher than the side of the water deflector 230 facing the window 220, or the upper end surface of the mirror base 110 is lower than the upper end surface of the water deflector 230, resulting in a height difference between the upper end surface of the mirror base 110 and the upper end surface of the water deflector 230, it may cause a sharp change in the air flow velocity, thereby forming a low-speed area and causing disordered eddy currents, further generating wind noise.

[0065] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A frameless rearview mirror, characterized in that, Comprising: A mirror base for mounting on the body of an automobile; A mirror housing, the mirror housing is mounted on the mirror base, and there is a gap between the mirror housing and the mirror base. The mirror housing has an opening, and a water blocking rib is provided on the side of the mirror housing close to the opening to block the water flow on the mirror housing from flowing onto the lens; And, A lens mounted at the opening; A diversion structure is provided on the side of the mirror housing away from the mirror base, and the diversion structure is arranged close to the opening; The diversion structure includes a first diversion groove. The contour line of the cross-section of the first diversion groove is divided into five consecutive arcs from the edge of the groove opening of the first diversion groove towards the bottom direction of the first diversion groove. The five arcs are respectively a first convex arc, a second convex arc, a third concave arc, a fourth concave arc and a fifth convex arc. The first convex arc is located close to the edge of the groove opening of the first diversion groove; and the plane where the connection of the fourth concave arc and the fifth convex arc is located is higher than the plane where the connection of the third concave arc and the fourth concave arc is located; The curvature of the first convex arc is greater than or equal to 0.6 and less than or equal to 1.2; and / or, The curvature of the second convex arc is greater than or equal to 0.5 and less than or equal to 1.1; and / or, The curvature of the third concave arc is greater than or equal to 0.5 and less than or equal to 1.1; and / or, The curvature of the fourth concave arc is greater than or equal to 1.1 and less than or equal to 1.7; and / or, The curvature of the fifth convex arc is greater than or equal to 1.2 and less than or equal to 1.

8.

2. The frameless rearview mirror according to claim 1, wherein The distance between the two end faces of the mirror base and the mirror housing opposite to each other is greater than or equal to 10 mm and less than or equal to 20 mm.

3. The frameless rearview mirror according to claim 2, characterized in that, A flow disturbing rib is further provided on the end face of the mirror housing facing the mirror base for dispersing the air flow flowing between the mirror housing and the mirror base.

4. The frameless rearview mirror according to claim 3, characterized in that, When the water blocking rib is provided on the end face of the mirror housing facing the mirror base and the flow disturbing rib is arranged close to the opening, the water blocking rib is the flow disturbing rib.

5. The frameless rearview mirror according to claim 3, wherein The protruding height of the flow disturbing rib is greater than or equal to 3 mm and less than or equal to 8 mm.

6. The frameless rearview mirror according to claim 1, wherein, The diversion structure further includes a second diversion groove provided on the groove wall of the first diversion groove. The first diversion groove extends along the edge of the opening, and the second diversion groove extends along the extending direction of the first diversion groove.

7. The frameless rearview mirror according to claim 6, wherein, The third arc and the fourth arc are the contour lines on the side of the second diversion groove facing the first diversion groove.

8. The frameless rearview mirror according to claim 1, characterized in that, A guiding surface is provided on the side of the opening of the first diversion groove close to the lens, and the guiding surface is a curved surface; and / or, The depth of the first diversion groove becomes shallower from the middle part of the first diversion groove towards both ends, and the middle part of the first diversion groove is located at the top of the opening.

9. A vehicle, characterized in that, Comprising a vehicle body and a frameless rearview mirror according to any one of claims 1 to 8, the frameless rearview mirror is mounted on the vehicle body.

10. The motor vehicle according to claim 9, characterized in that, The automobile further includes a water cut mounted on the vehicle body, and the upper end face of the mirror base of the frameless rearview mirror is flush with the upper end face of the water cut.

Citation Information

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