Vehicle rearview mirror with automatic cleaning function

Abstract

The present invention provides a vehicle rearview mirror with an automatic cleaning function, belonging to the field of electromechanical technology. The vehicle rearview mirror comprises a mounting cover, a driving wheel and a driven wheel located above the driving wheel, a soft traction belt is connected between the driving wheel and the driven wheel, a plurality of mounting strips are fixedly arranged on the traction belt at equal intervals, the driving wheel and the driven wheel both have recesses adapted to the mounting strips, and a reflective lens located on the outer side of the traction belt is fixedly arranged on the mounting strip; the driving wheel and the driven wheel are both rotatably connected to the mounting cover, and one end of the driving wheel is connected to a servo motor; the axis of the driving wheel and the axis of the driven wheel are in the same vertical plane, and each reflective lens of the straight section of the traction belt near the outer side of the mounting cover forms a main rearview lens group, and the reflective lens located at the lower end of the main rearview lens group and forming an angle with the main rearview lens group is a movable top-view lens. The present invention has the advantages of a wide field of view and the like.

Description

Technical Field

[0001] The invention belongs to the field of electromechanical technology and relates to a vehicle rearview mirror with an automatic cleaning function. Background Art

[0002] Rearview mirrors are used by drivers to observe the road conditions behind the vehicle. Existing vehicle rearview mirrors have the following defects: 1. In order to obtain a good view of the rear side of the car, the rearview mirror needs to have a position adjustment function, that is, to adjust the reflection angle so that the driver can obtain an ideal view; 2. Rain, dust, etc. can easily cause the reflective surface of the rearview mirror to be contaminated, and it needs to be cleaned regularly. When driving in rainy days or in winter, it needs to be heated to remove water and mist; 3. When parking, in order to facilitate accurate observation of the position of the wheels and the road surface, the rearview mirror also needs to have a downward flip function. Based on this, the structure of the rearview mirror is becoming more and more complex, and its control difficulty is also relatively large. The rearview mirror is one of the vulnerable parts among the various accessories of the vehicle, and its maintenance cost and replacement cost also increase accordingly, which is not conducive to the lightweight and cost control of the vehicle. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle rearview mirror with automatic cleaning function in view of the above problems existing in the prior art. The technical problem to be solved by the present invention is how to simplify the structure of the rearview mirror so that the driver can have a wider rear view.

[0004] The object of the present invention can be achieved by the following technical solutions: A vehicle rearview mirror with automatic cleaning function, characterized in that it includes a mounting cover, a driving wheel and a driven wheel located above the driving wheel, a soft traction belt is connected between the driving wheel and the driven wheel, a plurality of mounting strips are fixedly arranged on the traction belt at equal intervals, the driving wheel and the driven wheel are both provided with recesses adapted to the mounting strips, and a reflective lens located on the outer side of the traction belt is fixedly arranged on the mounting strip;

[0005] The driving wheel and the driven wheel are both rotatably connected to the mounting cover, and one end of the driving wheel is connected to a servo motor;

[0006] The axis of the driving wheel and the axis of the driven wheel are in the same vertical plane, and the reflective lenses of the straight section of the traction belt close to the outside of the mounting cover form a main rear-view lens group, and the reflective lens located at the lower end of the main rear-view lens group and forming an angle with the main rear-view lens group is a movable top-view lens.

[0007] Furthermore, a ventilation pipe is arranged in the mounting cover, and a plurality of air nozzles are connected in parallel to the ventilation pipe, each of which faces a reflective lens close to the inner side of the mounting cover, and the ventilation pipe is connected to an air outlet of the vehicle's air conditioning system.

[0008] Furthermore, the rearview mirror comprises a time delay switch and a manual switch, wherein the time delay switch is connected in parallel with the manual switch and then connected to the servo motor.

[0009] Furthermore, the reflective surface of the reflective lens is a curved surface with a middle portion convex toward the outside.

[0010] The servo motor can be controlled manually or quickly through a delay switch. For example, when the reflective lens needs to be cleaned, the delay switch can be pressed to make the drive wheel rotate several times and then stop. At the same time, the vehicle's air conditioner provides warm air to the ventilation pipe, which is sprayed onto the reflective lens by the air nozzle. During the rotation of the traction belt, each reflective lens can be effectively cleaned, including removing stains and dehumidifying and removing water. When only the inclination angle of the movable top-view lens needs to be adjusted to change the driver's rear view field of view, the manual switch can be controlled to allow the movable top-view lens to change the inclination angle with the vertical plane, so that the driver can observe the required position, such as the wheel position.

[0011] Since the reflective lens is a wide-angle lens with a slightly convex middle portion, that is, a lens that is slightly thinner on the left and right sides and slightly thicker in the middle, it can achieve a wide-angle field of view in the left and right directions, so that the rearview mirror does not need to adjust the angle of the main rearview lens group.

[0012] Compared with the prior art, this solution can not only simplify its structure and remove the heating mechanism, lens angle adjustment mechanism, etc. required by the existing rearview mirror, but also use the rotation of the traction belt to achieve blind-angle cleaning, including water removal and dirt removal. The movable top-down lens can achieve blind-angle observation of the rear side of the vehicle, which is conducive to safe driving in parking, meeting and other situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the planar structure of the rearview mirror.

[0014] Figure 2 It is a cross-sectional view of this rearview mirror.

[0015] Figure 3 It is a schematic diagram of the transmission structure of each reflective lens in the rearview mirror.

[0016] Figure 4 It is a cross-sectional view of a reflective lens.

[0017] Figure 5 This is the circuit schematic of the servo motor.

[0018] In the figure, 1. mounting cover; 2. driving wheel; 3. driven wheel; 41. traction belt; 42. mounting strip; 43. notch; 5. reflective lens; 61. servo motor; 62. delay switch; 63. manual switch; 7. main rear view lens group; 8. movable top view lens; 9. ventilation pipe. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figures 1 to 5 As shown, it includes a mounting cover 1, a driving wheel 2 and a driven wheel 3 located above the driving wheel 2, a soft traction belt 41 is connected between the driving wheel 2 and the driven wheel 3, a plurality of mounting strips 42 are fixedly arranged on the traction belt 41 at equal intervals, the driving wheel 2 and the driven wheel 3 are both provided with recesses 43 adapted to the mounting strips 42, and a reflective lens 5 located on the outer side of the traction belt 41 is fixedly arranged on the mounting strip 42;

[0021] The driving wheel 2 and the driven wheel 3 are both rotatably connected to the mounting cover 1, and one end of the driving wheel 2 is connected to a servo motor 61;

[0022] The axis of the driving wheel 2 and the axis of the driven wheel 3 are in the same vertical plane. The reflective lenses 5 of the straight section of the traction belt 41 close to the outside of the mounting cover 1 form a main rear-view lens group 7. The reflective lens 5 located at the lower end of the main rear-view lens group 7 and forming an angle with the main rear-view lens group 7 is a movable top-view lens 8.

[0023] A vent pipe 9 is arranged in the mounting cover 1, and a plurality of air jets are connected in parallel to the vent pipe 9, each of which faces a reflective lens 5 close to the inner side of the mounting cover 1, and the vent pipe 9 is connected to an air outlet of the vehicle's air conditioning system.

[0024] The rearview mirror includes a time delay switch 62 and a manual switch 63 . The time delay switch 62 and the manual switch 63 are connected in parallel to the servo motor 61 .

[0025] The reflective surface of the reflective lens 5 is a curved surface with a middle portion convex toward the outside.

[0026] The servo motor 61 can be controlled manually or quickly through the delay switch 62. When the reflective lens 5 needs to be cleaned, the delay switch 62 can be pressed to make the driving wheel 2 rotate several times and then stop. At the same time, the vehicle's air conditioner provides warm air to the vent pipe 9, which is sprayed onto the reflective lens 5 by the air nozzle. During the rotation of the traction belt 41, each reflective lens 5 can be effectively cleaned, including removing stains and dehumidifying and removing water. When only the inclination angle of the movable top-view lens 8 needs to be adjusted to change the driver's rear view field of view, the manual switch 63 can be controlled to enable the movable top-view lens 8 to change the inclination angle with respect to the vertical plane, so that the driver can observe the required position, such as the wheel position.

[0027] Since the reflective lens 5 is a wide-angle lens with a slightly convex middle portion, that is, a lens that is slightly thinner on the left and right sides and slightly thicker in the middle, it can achieve a wide-angle field of view in the left and right directions, so that the rearview mirror does not need to adjust the angle of the main rearview lens group 7.

[0028] Compared with the prior art, the present solution can not only simplify its structure, but also remove the heating mechanism, lens angle adjustment mechanism, etc. required by the existing rearview mirror, and can also use the rotation of the traction belt 41 to achieve blind-angle cleaning, including water removal and dirt removal. The movable top-view lens 8 can achieve blind-angle observation of the rear side of the vehicle, which is beneficial to safe driving in parking, meeting and other situations.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vehicle rearview mirror with automatic cleaning function, characterized in that: The invention comprises a mounting cover (1), a driving wheel (2) and a driven wheel (3) located above the driving wheel (2); a soft traction belt (41) is connected between the driving wheel (2) and the driven wheel (3); a plurality of mounting strips (42) are fixedly arranged at equal intervals on the traction belt (41); the driving wheel (2) and the driven wheel (3) both have recesses (43) adapted to the mounting strips (42); and a reflective lens (5) is fixedly arranged on the mounting strip (42) and located on the outer side of the traction belt (41); The driving wheel (2) and the driven wheel (3) are both rotatably connected to the mounting cover (1), and one end of the driving wheel (2) is connected to a servo motor (61); The axis of the driving wheel (2) and the axis of the driven wheel (3) are located on the same vertical plane, and the reflective lenses (5) of the straight section of the traction belt (41) close to the outside of the mounting cover (1) form a main rear-view lens group (7), and the reflective lens (5) located at the lower end of the main rear-view lens group (7) and forming an angle with the main rear-view lens group (7) is a movable top-view lens (8); The rearview mirror comprises a time delay switch (62) and a manual switch (63), wherein the time delay switch (62) and the manual switch (63) are connected in parallel and then connected to a servo motor (61); When cleaning the reflective lens (5), the delay switch (62) is pressed to make the driving wheel (2) rotate several times and then stop. At the same time, the air conditioner of the vehicle provides warm air to the ventilation pipe (9), which is sprayed onto the reflective lens (5) by the air nozzle. During the rotation of the traction belt (41), each reflective lens (5) can be effectively cleaned, including removing stains and dehumidifying and removing water. When only the inclination angle of the movable top-view lens (8) needs to be adjusted to change the driver's rear view field of view, the manual switch (63) is controlled to enable the movable top-view lens (8) to change the inclination angle with respect to the vertical plane.

2. The vehicle rearview mirror with automatic cleaning function according to claim 1, characterized in that: A vent pipe (9) is arranged inside the mounting cover (1), and a plurality of air jets are connected in parallel to the vent pipe (9), each of the air jets facing a reflective lens (5) close to the inner side of the mounting cover (1), and the vent pipe (9) is connected to an air outlet of an air conditioning system of the vehicle.

3. The vehicle rearview mirror with automatic cleaning function according to claim 2, characterized in that: The reflective surface of the reflective lens (5) is a curved surface with a middle portion convex toward the outside.

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