Rearview mirror and vehicle

Abstract

The utility model relates to a kind of rearview mirror and vehicle, rearview mirror, including main body device and cantilever support;Main body device includes shell, reflection element and observation mirror, shell is set along first direction, shell has first accommodating cavity and observation surface, the first end of shell is equipped with the light inlet that is communicated with first accommodating cavity, observation surface is equipped with the mounting hole that is communicated with first accommodating cavity, observation surface is towards vehicle body, reflection element is located in first accommodating cavity, observation mirror is located in mounting hole, reflection element and observation mirror present certain angle of inclusion;Cantilever support is set along second direction, one end of cantilever support is connected to observation surface.The utility model is by shell along first direction setting, and optimizing light inlet and observation mirror layout, effectively reduce the wind area of rearview mirror.Gas flow through shell, due to wind area reduction, airflow separation zone reduces, laminar boundary layer stability improves, thereby inhibiting the generation of karman vortex stage.

Description

Technical Field

[0001] This utility model relates to the field of communication technology for vehicle components, specifically to a rearview mirror and a vehicle. Background Technology

[0002] With the rapid development of the new energy vehicle market, the requirements for vehicle range are increasing. The drag coefficient is one of the key factors affecting vehicle range. To reduce drag, vehicles are typically designed with a streamlined shape.

[0003] like Figure 1 As shown, existing vehicle rearview mirrors typically employ a horizontally unfolding design, expanding to provide visibility while driving and retracting when parked. However, this design significantly increases the frontal area at high speeds. The airflow from the front impacts the front surface of the rearview mirror, and due to the high velocity, an airflow separation zone easily forms at the front edge of the mirror. The larger the frontal area of ​​the rearview mirror, the more easily a wake vortex is generated at the edge of the mirror surface, increasing not only wind resistance but also noticeable wind noise.

[0004] Specifically, when airflow impacts the windward front cover of the rearview mirror, it splits at the stagnation point and flows backward along the wall. The flow layer close to the wall is a viscous sublayer, i.e., a laminar boundary layer, characterized by low velocity, low momentum, and poor stability. Under the influence of an adverse pressure gradient, the laminar boundary layer is highly prone to separation. Therefore, traditional rearview mirrors have a large windward area, and the boundary changes drastically as airflow passes over the wall, forming a Karman vortex step at the mirror tip, further exacerbating wind resistance and noise. Utility Model Content

[0005] Based on the above description, this utility model provides a rearview mirror and a vehicle, aiming to solve the problem that existing rearview mirrors have a large frontal area, and the end of the mirror surface is more prone to generating tail vortices, which not only increases wind resistance, but also causes obvious wind noise.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: Firstly, a rearview mirror includes: The main device includes a housing, a reflector, and an observation mirror. The housing is arranged along a first direction F. The housing has a first receiving cavity and an observation surface. A light inlet communicating with the first receiving cavity is opened at a first end of the housing. A mounting hole communicating with the first receiving cavity is opened on the observation surface. The observation surface faces the vehicle body. The reflector is disposed in the first receiving cavity. The observation mirror is disposed in the mounting hole. The reflector and the observation mirror form a certain angle. A cantilever bracket is provided along the second direction F, and one end of the cantilever bracket is connected to the observation surface.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the second end of the housing is configured as an arc shape.

[0009] Furthermore, the reflector is a reflector.

[0010] Furthermore, the observation mirror is a lens.

[0011] Furthermore, the first direction F is arranged parallel to the vehicle body.

[0012] Furthermore, it includes an angle adjustment mechanism, which comprises a frame, a first transmission component, and a first drive motor. The frame is sleeved on the reflector, the first transmission component is connected to the frame, and the output end of the first drive motor is connected to the first transmission component.

[0013] Furthermore, the first transmission assembly includes a rotating shaft and two gears. One end of the rotating shaft is connected to the frame, one gear is sleeved on the rotating shaft, and the other gear is sleeved on the output end of the first drive motor. The two gears mesh.

[0014] Furthermore, the cantilever bracket includes a first connecting arm, a second connecting arm, and a telescopic mechanism. The first connecting arm has a second receiving cavity. One end of the first connecting arm facing the observation surface has an opening that communicates with the second receiving cavity. One end of the second connecting arm is connected to the observation surface, and the other end of the second connecting arm passes through the opening and extends into the second receiving cavity. The telescopic mechanism is disposed in the second receiving cavity, and the output end of the telescopic mechanism is connected to the other end of the second connecting arm.

[0015] Furthermore, the second receiving cavity includes a first receiving area and a second receiving area. The opening communicates with the first receiving area. The other end of the second connecting arm passes through the opening and extends to the first receiving area. The telescopic mechanism includes a second transmission assembly, a second drive motor, and a lead screw. The second transmission assembly and the second drive motor are both located in the second receiving area. The output end of the second drive motor is connected to the second transmission assembly. One end of the lead screw is threadedly connected to the first connecting arm. The other end of the lead screw passes through the partition wall between the first receiving area and the second receiving area and is connected to the second transmission assembly.

[0016] Second, a vehicle including a rearview mirror as described in the first aspect.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: (1) By setting the housing along the first direction and optimizing the layout of the light inlet and the observation mirror, this utility model effectively reduces the windward area of ​​the rearview mirror. When the airflow passes through the housing, the airflow separation zone shrinks due to the reduced windward area, and the stability of the laminar boundary layer is improved, thereby suppressing the generation of the Karman vortex step.

[0018] (2) The present invention drives the frame to rotate through the first drive motor and the first transmission component, which can adjust the angle of the reflector so that the driver can adjust the field of vision as needed.

[0019] (3) The telescopic mechanism of this utility model drives the second connecting arm to extend and retract along the first connecting arm to realize the unfolding and retraction of the rearview mirror. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of a rearview mirror in the prior art; Figure 2 This is a schematic diagram of the structure of a rearview mirror provided in an embodiment of the present utility model; Figure 3 This is a cross-sectional view of a rearview mirror provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the angle adjustment mechanism in an embodiment of the present invention; Figure 5 This is a schematic diagram of the telescopic mechanism in an embodiment of the present utility model; Figure 6 This is a hydrodynamic effect diagram of a rearview mirror provided in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures: F1, first direction; F2, second direction; 10. Main body; 11. Housing; 111. First receiving cavity; 112. Observation surface; 113. Light inlet; 12. Reflector; 13. Observation mirror; 14. Angle adjustment mechanism; 141. Frame; 142. First transmission assembly; 1421. Rotating shaft; 1422. Gear; 143. First drive motor; 20. Cantilever bracket; 21. First connecting arm; 211. Second receiving cavity; 2111. First receiving area; 2112. Second receiving area; 22. Second connecting arm; 23. Telescopic mechanism; 231. Second transmission assembly; 2311. Synchronous pulley; 2312. Synchronous toothed belt; 232. Second drive motor; 233. Lead screw. Detailed Implementation

[0023] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0025] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0026] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0027] Reference Figures 2 to 3 , Figure 6As shown, this utility model provides a technical solution: a rearview mirror, including a main body 10 and a cantilever bracket 20; the main body 10 includes a housing 11, a reflector 12 and an observation mirror 13, the housing 11 is arranged along a first direction F1, the housing 11 has a first receiving cavity 111 and an observation surface 112, the first end of the housing 11 has a light inlet 113 communicating with the first receiving cavity 111, the observation surface 112 has a mounting hole communicating with the first receiving cavity 111, the observation surface 112 faces the vehicle body, the reflector 12 is disposed in the first receiving cavity 111, the observation mirror 13 is disposed in the mounting hole, the reflector 12 and the observation mirror 13 form a certain angle; the cantilever bracket 20 is arranged along a second direction F2, one end of the cantilever bracket 20 is connected to the observation surface 112.

[0028] For example, the first end of the housing 11 corresponds to the rear side of the vehicle.

[0029] In this embodiment, when the rearview mirror is in operation, light enters through the light inlet 113 and is reflected by the reflector 12 before being observed by the driver through the observation mirror 13. By setting the housing 11 along the first direction F1 and optimizing the layout of the light inlet 113 and the observation mirror 13, the frontal area of ​​the rearview mirror is effectively reduced. When airflow passes through the housing 11, the reduced frontal area shrinks the airflow separation zone and improves the stability of the laminar boundary layer, thereby suppressing the generation of Karman vortex steps. Therefore, wind resistance and wind noise at high speeds can be reduced, improving vehicle range and driving comfort.

[0030] Reference Figures 2 to 3 As shown, in some embodiments, the second end of the housing 11 is configured as an arc.

[0031] For example, the second end of the housing 11 corresponds to the front side of the vehicle.

[0032] In this embodiment, the arc-shaped surface guides the airflow to flow stably along the wall, reducing the adverse pressure gradient and preventing laminar boundary layer separation. This further reduces wind resistance and wind noise, improves airflow stability, and enhances the aerodynamic performance of the rearview mirror.

[0033] Preferably, the reflector 12 is a reflector.

[0034] In this embodiment, the reflector provides high reflectivity to ensure a clear field of view.

[0035] Preferably, the observation mirror 13 is a lens.

[0036] In this embodiment, the observation mirror 13 can magnify or optimize the image, improving the observation effect. Through the cooperation of the reflector and lens, the optical performance of the rearview mirror is enhanced, ensuring the driver obtains a wide and clear field of vision while maintaining a simple and reliable structure.

[0037] Reference Figures 2 to 3As shown, in some embodiments, the first direction F1 is arranged parallel to the vehicle body.

[0038] In this embodiment, the parallel layout minimizes the protrusion of the rearview mirrors in the vehicle's lateral direction, directly reducing the frontal area. Optimized stagnation point locations during airflow impact result in more uniform airflow distribution, thereby reducing localized high pressure and the risk of separation.

[0039] Reference Figures 3 to 4 As shown, in some embodiments, the rearview mirror includes an angle adjustment mechanism 14, which includes a frame 141, a first transmission component 142, and a first drive motor 143. The frame 141 is sleeved on the reflector 12, the first transmission component 142 is connected to the frame 141, and the output end of the first drive motor 143 is connected to the first transmission component 142.

[0040] In this embodiment, the first drive motor 143 drives the frame 141 to rotate through the first transmission component 142, which can adjust the angle of the reflector 12, allowing the driver to adjust the field of vision as needed.

[0041] Reference Figures 3 to 4 As shown, in some embodiments, the first transmission assembly 142 includes a rotating shaft 1421 and two gears 1422. One end of the rotating shaft 1421 is connected to the frame 141. One gear 1422 is sleeved on the rotating shaft 1421, and the other gear 1422 is sleeved on the output end of the first drive motor 143. The two gears 1422 mesh.

[0042] For example, the diameter of the gear 1422 on the rotating shaft 1421 is larger than the diameter of the gear 1422 on the output end of the first drive motor 143.

[0043] In this embodiment, a motor drives a pair of gears 1422, which transmit torque to the frame 141 via a rotating shaft 1421, thereby adjusting the angle of the reflector 12. The gear transmission 1422 has a high-precision rotation angle, ensuring stable adjustment.

[0044] Reference Figure 3 and Figure 5 As shown, in some embodiments, the cantilever bracket 20 includes a first connecting arm 21, a second connecting arm 22, and a telescopic mechanism 23. The first connecting arm 21 has a second receiving cavity 211. One end of the first connecting arm 21 facing the observation surface 112 has an opening that communicates with the second receiving cavity 211. One end of the second connecting arm 22 is connected to the observation surface 112, and the other end of the second connecting arm 22 passes through the opening and extends into the second receiving cavity 211. The telescopic mechanism 23 is disposed in the second receiving cavity 211, and the output end of the telescopic mechanism 23 is connected to the other end of the second connecting arm 22.

[0045] In this embodiment, the telescopic mechanism 23 drives the second connecting arm 22 to extend and retract along the first connecting arm 21, thereby enabling the rearview mirror to unfold and retract. For example, when driving at high speed, it can be partially retracted to reduce the frontal area; when parked, it can be fully retracted to save space and reduce the possibility of scratches.

[0046] Reference Figure 5 As shown, in some embodiments, the second receiving cavity 211 includes a first receiving area 2111 and a second receiving area 2112, with an opening communicating with the first receiving area 2111. The other end of the second connecting arm 22 passes through the opening and extends to the first receiving area 2111. The telescopic mechanism 23 includes a second transmission assembly 231, a second drive motor 232, and a lead screw 233. The second transmission assembly 231 and the second drive motor 232 are both located in the second receiving area 2112. The output end of the second drive motor 232 is connected to the second transmission assembly 231. One end of the lead screw 233 is threadedly connected to the first connecting arm 21, and the other end of the lead screw 233 passes through the partition wall between the first receiving area 2111 and the second receiving area 2112 and is connected to the second transmission assembly 231.

[0047] In this embodiment, the second drive motor 232 drives the lead screw 233 to rotate through the second transmission component 231. The lead screw 233 is threadedly engaged with the first connecting arm 21, converting the rotational motion into the linear motion of the second connecting arm 22, thereby achieving extension and retraction.

[0048] Reference Figure 5 As shown, in some embodiments, the second transmission assembly 231 includes a synchronous pulley 2311 and a synchronous toothed belt 2312. There are two synchronous pulleys 2311, one synchronous pulley 2311 is sleeved on the other end of the lead screw 233, and the other synchronous pulley 2311 is sleeved on the output end of the second drive motor 232. The synchronous toothed belt 2312 is connected to the two synchronous pulleys 2311.

[0049] In this embodiment, the synchronous belt drive ensures that the motor and the lead screw 233 move synchronously, transmitting power efficiently and accurately, and avoiding slippage.

[0050] This utility model provides a technical solution: a vehicle including the aforementioned rearview mirror.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rearview mirror, characterized in that, include: The main device (10) includes a housing (11), a reflector (12), and an observation mirror (13). The housing (11) is arranged along a first direction (F1). The housing (11) has a first receiving cavity (111) and an observation surface (112). The first end of the housing (11) is provided with a light inlet (113) communicating with the first receiving cavity (111). The observation surface (112) is provided with a mounting hole communicating with the first receiving cavity (111). The observation surface (112) faces the vehicle body. The reflector (12) is disposed in the first receiving cavity (111). The observation mirror (13) is disposed in the mounting hole. The reflector (12) and the observation mirror (13) form a certain angle. A cantilever bracket (20) is provided along the second direction (F2), and one end of the cantilever bracket (20) is connected to the observation surface (112).

2. The rearview mirror according to claim 1, characterized in that, The second end of the housing (11) is constructed in an arc shape.

3. The rearview mirror according to claim 1, characterized in that, The reflector (12) is a reflector.

4. The rearview mirror according to claim 3, characterized in that, The observation mirror (13) is a lens.

5. The rearview mirror according to claim 4, characterized in that, The first direction (F1) is parallel to the vehicle body.

6. The rearview mirror according to claim 1, characterized in that, The device includes an angle adjustment mechanism (14), which includes a frame (141), a first transmission component (142), and a first drive motor (143). The frame (141) is fitted onto the reflector (12), the first transmission component (142) is connected to the frame (141), and the output end of the first drive motor (143) is connected to the first transmission component (142).

7. The rearview mirror according to claim 6, characterized in that, The first transmission assembly (142) includes a rotating shaft (1421) and two gears (1422). One end of the rotating shaft (1421) is connected to the frame (141), one gear (1422) is sleeved on the rotating shaft (1421), and the other gear (1422) is sleeved on the output end of the first drive motor (143). The two gears (1422) mesh.

8. The rearview mirror according to claim 1, characterized in that, The cantilever bracket (20) includes a first connecting arm (21), a second connecting arm (22), and a telescopic mechanism (23). The first connecting arm (21) has a second receiving cavity (211). One end of the first connecting arm (21) facing the observation surface (112) has an opening that communicates with the second receiving cavity (211). One end of the second connecting arm (22) is connected to the observation surface (112), and the other end of the second connecting arm (22) passes through the opening and extends to the second receiving cavity (211). The telescopic mechanism (23) is located in the second receiving cavity (211), and the output end of the telescopic mechanism (23) is connected to the other end of the second connecting arm (22).

9. The rearview mirror according to claim 8, characterized in that, The second receiving cavity (211) includes a first receiving area (2111) and a second receiving area (2112). The opening communicates with the first receiving area (2111). The other end of the second connecting arm (22) passes through the opening and extends to the first receiving area (2111). The telescopic mechanism (23) includes a second transmission assembly (231), a second drive motor (232), and a lead screw (233). The second transmission assembly (231) and the second drive motor (232) are both located in the second receiving area (2112). The output end of the second drive motor (232) is connected to the second transmission assembly (231). One end of the lead screw (233) is threadedly connected to the first connecting arm (21). The other end of the lead screw (233) passes through the partition wall between the first receiving area (2111) and the second receiving area (2112) and is connected to the second transmission assembly (231).

10. A vehicle, characterized in that, Includes the rearview mirror according to any one of claims 1 to 9.

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