Automatic dust cleaning system for electronic outside rear-view mirror camera

Abstract

The invention relates to the technical field of rearview mirror cameras, and discloses an electronic outside rearview mirror camera dust automatic cleaning system which comprises a rearview mirror, a connecting support is fixedly connected to the right side of the rearview mirror, a cleaning controller is fixedly connected to the bottom of the inner wall of the rearview mirror, and a driving motor is fixedly connected to the top of the cleaning controller. The output end of the driving motor is fixedly connected with a driving bevel gear, the surface of the driving bevel gear is in meshed connection with a driven bevel gear, a threaded rod is fixedly connected to the center of the front side of the driven bevel gear, and the surface of the threaded rod is in threaded connection with a limiting block. The lens of the camera is detected in real time through the cleaning controller, when dust on the lens of the camera reaches a threshold value, the cleaning controller can control the first air cylinder, the steering engine, the second air cylinder and the driving motor to work automatically, automatic detection and automatic cleaning of the dust of the camera are achieved, manual intervention is not needed, and the timeliness and efficiency of cleaning are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rearview mirror cameras, and in particular to an automatic dust cleaning system for an electronic exterior rearview mirror camera. Background Art

[0002] With the continuous development of automobile technology, electronic exterior rearview mirrors have gradually been used. The electronic exterior rearview mirror camera is a device installed on both sides of the vehicle's exterior to replace traditional optical exterior rearview mirrors. It collects image information from the rear and side areas of the vehicle in real time and transmits it to the display screen inside the car for the driver to view.

[0003] Currently, when electronic exterior rearview mirror cameras are used, due to the complex vehicle driving environment, electronic exterior rearview mirror cameras are easily contaminated with dust, and are mostly cleaned manually, which is not only inconvenient to operate, but also unable to remove dust in a timely and effective manner, affecting image acquisition quality and further affecting driving safety. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic dust cleaning system for an electronic exterior rearview mirror camera, which solves the problem that the electronic exterior rearview mirror camera cannot be automatically cleaned and the imaging quality is reduced due to dust accumulation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic dust cleaning system for an electronic exterior rearview mirror camera, comprising a rearview mirror, a connecting bracket fixedly connected to the right side of the rearview mirror, a cleaning controller fixedly connected to the bottom of the inner wall of the rearview mirror, a driving motor fixedly connected to the top of the cleaning controller, an active bevel gear fixedly connected to the output end of the driving motor, a driven bevel gear meshingly connected to the surface of the active bevel gear, a threaded rod fixedly connected to the center position of the front side of the driven bevel gear, a limit block threadedly connected to the surface of the threaded rod, a camera fixedly connected to the top of the limit block, limit plates fixedly connected to the left and right sides of the camera, a sealed mirror fixedly connected to the front side of the rearview mirror, a cleaning assembly arranged at the rear side of the sealed mirror, the cleaning assembly being used to clean the camera, a second cylinder fixedly connected to the bottom of the inner wall of the rearview mirror, a steering gear fixedly connected to the output end of the second cylinder, a water spraying member fixedly connected to the output end of the steering gear, and a delivery pipe fixedly connected to the front side of the inner diameter of the water spraying member.

[0006] Preferably, the cleaning assembly includes a fixing ring, which is fixedly connected to the sealing mirror, a connecting ring is rotatably connected to the rear side of the fixing ring, a connecting bent rod is rotatably connected to the rear side of the connecting ring, a cleaning wipe is rotatably connected to the inner side of the connecting bent rod, a limiting ring is rotatably connected to the rear side of the cleaning wipe, and a first cylinder is rotatably connected to the left side of the connecting ring.

[0007] Preferably, a connecting block is fixedly connected to the rear side of the inner wall of the rearview mirror, and a soft rubber sleeve is fixedly connected between the two limit plates and the connecting block.

[0008] Preferably, two contact electrodes are provided on the inner diameter of the two soft rubber sleeves, the two contact electrodes on the rear side are fixedly connected to the connecting block, and the two contact electrodes on the front side are fixedly connected to the limiting plates respectively.

[0009] Preferably, a support block is rotatably connected to the surface of the threaded rod, and the front end of the threaded rod penetrates and extends to the front side of the support block, and the front end of the threaded rod penetrates and extends to the front side of the limit block.

[0010] Preferably, opposite sides of the two limit plates are slidably connected with a sliding rod, and the sliding rod is fixedly connected to the rear side of the inner wall of the rearview mirror.

[0011] A method for using an automatic dust cleaning system for an electronic exterior rearview mirror camera, the method comprising the following steps:

[0012] Step 1: multiple dust sensors are arranged around the front end of the camera. At the same time, multiple humidity sensors are also installed on the camera to monitor the humidity on the surface of the camera. The dust sensors and the humidity sensors are arranged alternately. The dust sensors and the humidity sensors transmit the detected data to the cleaning controller for processing;

[0013] Step 2: After the cleaning controller completes the data processing, the data is compared with the threshold value set in the cleaning controller. When the dust on the camera surface exceeds the threshold value, the cleaning controller first controls the second cylinder to work, pushes the steering gear to move forward, and the steering gear adjusts the angle of the water spraying part to spray the cleaning liquid onto the camera surface through the delivery pipe;

[0014] Step 3: Next, the cleaning controller controls the driving motor to operate, and the driving motor drives the active bevel gear to rotate, drives the driven bevel gear meshing with the active bevel gear to rotate, and then drives the threaded rod to rotate. Since the threaded rod is threadedly connected with the limit block, and under the limiting action of the slide bar, the limit block drives the camera to move toward the inside of the rearview mirror;

[0015] Step 4: When the camera moves to the inner diameter position of the limit ring, the drive motor stops running, and then the first cylinder extends to push the connecting ring to rotate. The connecting ring drives the cleaning wipe to move through the connecting curved rod, and the cleaning wipe is retracted to wipe the surface of the camera. Then the cleaning wipe remains retracted and closed, and the drive motor restarts to reverse, pushing the camera forward so that the lens of the camera rests against the rear side of the cleaning wipe. After that, the drive motor stops working again, and the first cylinder repeats the extension and retraction work, so that the cleaning wipe is repeatedly opened and closed, so that the rear side of the cleaning wipe rubs against the lens of the camera to clean the camera.

[0016] Step 5: When the humidity on the surface of the camera is too high and the water mist exceeds the set threshold, the second cylinder and the servo do not work, and only the drive motor and the first cylinder work to wipe the camera lens;

[0017] Step six, finally, when the vehicle stops and is locked, the drive motor operates to drive the camera to retract into the rearview mirror, and the first cylinder further extends to keep the cleaning wipe closed, thereby protecting the camera.

[0018] The present invention provides an automatic dust cleaning system for an electronic exterior rearview mirror camera. It has the following beneficial effects:

[0019] 1. The present invention detects the camera lens in real time through a cleaning controller. When the dust on the camera lens reaches a threshold, the cleaning controller can control the first cylinder, the steering gear, the second cylinder and the driving motor to work independently, thereby realizing automatic detection and automatic cleaning of the camera dust without manual intervention, thereby improving the timeliness and efficiency of cleaning.

[0020] 2. The present invention has multiple automatic cleaning modes, which can perform targeted cleaning according to the actual situation of dust on the lens surface of the camera, avoiding excessive cleaning or insufficient cleaning.

[0021] 3. In view of the situation that the vehicle is not in use, the present invention retracts the camera into the interior of the rearview mirror and closes the cleaning wipe to seal the rearview mirror, so that the camera is protected when not in use and dust in the air is prevented from accumulating on the surface of the camera lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 A schematic diagram of a cleaning component of the present invention;

[0025] Figure 4 It is a schematic diagram of a water spraying member of the present invention;

[0026] Figure 5 A schematic diagram of a camera of the present invention;

[0027] Figure 6 It is a left side cross-sectional schematic diagram of the present invention.

[0028] Among them, 1. rearview mirror; 2. sealing mirror; 3. connecting bracket; 4. sliding rod; 5. cleaning controller; 6. connecting curved rod; 7. fixing ring; 8. cleaning wipe; 9. connecting ring; 10. first cylinder; 11. limiting ring; 12. water spray part; 13. conveying pipe; 14. servo; 15. second cylinder; 16. camera; 17. limiting plate; 18. limiting block; 19. connecting block; 20. driving motor; 21. driving bevel gear; 22. driven bevel gear; 23. threaded rod; 24. soft rubber sleeve; 25. contact electrode; 26. supporting block. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] Please refer to the attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides an automatic dust cleaning system for an electronic exterior rearview mirror camera, comprising a rearview mirror 1, a connecting bracket 3 is fixedly connected to the right side of the rearview mirror 1, a cleaning controller 5 is fixedly connected to the bottom of the inner wall of the rearview mirror 1, a driving motor 20 is fixedly connected to the top of the cleaning controller 5, an active bevel gear 21 is fixedly connected to the output end of the driving motor 20, a driven bevel gear 22 is meshedly connected to the surface of the active bevel gear 21, a threaded rod 23 is fixedly connected to the center position of the front side of the driven bevel gear 22, a limited block 18 is threadedly connected to the surface of the threaded rod 23, a camera 16 is fixedly connected to the top of the limited block 18, and the left and right sides of the camera 16 are fixedly connected to the limited plates 17, a sealing mirror 2 is fixedly connected to the front side of the rearview mirror 1, a cleaning component is arranged on the rear side of the sealing mirror 2, and the cleaning component is used to clean the camera 16, a second cylinder 15 is fixedly connected to the bottom of the inner wall of the rearview mirror 1, a steering gear 14 is fixedly connected to the output end of the second cylinder 15, a water spraying member 12 is fixedly connected to the output end of the steering gear 14, and a conveying pipe 13 is fixedly connected to the front side of the inner diameter of the water spraying member 12.

[0032] The rearview mirror 1, as the basic supporting structure of the entire system, is made of high-strength and wear-resistant engineering plastic material, which can not only effectively resist external impact and scratches, but also has good weather resistance and adapts to various complex climatic conditions. The connecting bracket 3 on the right side is made of solid aluminum alloy, which has undergone a fine die-casting process and an anti-oxidation treatment on the surface to ensure that it will not rust during long-term use, thereby stably connecting the rearview mirror to the vehicle body;

[0033] The driving bevel gear 21 is forged from high-quality alloy steel and has been quenched and tempered to have extremely high hardness and wear resistance, and can achieve smooth and efficient meshing transmission with the driven bevel gear 22;

[0034] The threaded rod 23 at the front center of the driven bevel gear 22 is made of high-precision stainless steel, ensuring a tight and precise thread fit with the limit block 18. The limit block 18 is made of wear-resistant nylon material, and the limit plates 17 on the left and right sides of the camera 16 are made of lightweight aluminum alloy plates, which reduces the overall weight while ensuring strength.

[0035] The cleaning assembly includes a fixing ring 7, which is fixedly connected to the sealing mirror 2. A connecting ring 9 is rotatably connected to the rear side of the fixing ring 7. The rear side of the connecting ring 9 is rotatably connected to evenly distributed connecting bent rods 6. Cleaning wipes 8 are rotatably connected to the inner sides of the connecting bent rods 6. The rear side of the cleaning wipes 8 is rotatably connected to a limiting ring 11. The left side of the connecting ring 9 is rotatably connected to a first cylinder 10.

[0036] The cleaning wipe 8 is made of a soft and highly absorbent microfiber material, which can effectively remove dust and stains on the surface of the camera without damaging the lens. The limiting ring 11 rotatably connected to the rear side of the cleaning wipe 8 is made of a wear-resistant rubber material, which plays a good limiting and buffering role.

[0037] A connecting block 19 is fixedly connected to the rear side of the inner wall of the rearview mirror 1 , and a soft rubber sleeve 24 is fixedly connected between the two limiting plates 17 and the connecting block 19 .

[0038] Two contact electrodes 25 are disposed on the inner diameter of the two soft rubber sleeves 24 . The two rear contact electrodes 25 are fixedly connected to the connecting block 19 , and the two front contact electrodes 25 are fixedly connected to the limiting plates 17 .

[0039] The soft rubber sleeve 24 fixedly connected between the two limit plates 17 is made of a weather-resistant silicone material, has good flexibility and sealing performance, and effectively protects the internal circuit from erosion by dust and water vapor. The contact electrode 25 arranged on the inner diameter of the soft rubber sleeve 24 is made of a copper alloy material with good conductivity, ensuring the stable transmission of power and signals.

[0040] The surface of the threaded rod 23 is rotatably connected to a support block 26 , and the front end of the threaded rod 23 penetrates and extends to the front side of the support block 26 , and the front end of the threaded rod 23 penetrates and extends to the front side of the limit block 18 .

[0041] The support block 26 rotatably connected to the surface of the threaded rod 23 is made of wear-resistant ceramic material, which reduces friction loss and prolongs the service life. The front end of the threaded rod 23 penetrates and extends to the front side of the support block 26 and the front side of the limit block 18, ensuring the stability and accuracy of the transmission.

[0042] The two limiting plates 17 are slidably connected to the opposite sides thereof with a sliding rod 4 , and the sliding rod 4 is fixedly connected to the rear side of the inner wall of the rearview mirror 1 .

[0043] The slide bar 4 is made of a chrome-plated steel bar with a smooth surface, which reduces sliding resistance. The fixed connection between the slide bar 4 and the rear side of the inner wall of the rearview mirror 1 is firm and reliable, providing a stable guide for the movement of the camera 16.

[0044] A method for using an automatic dust cleaning system for an electronic exterior rearview mirror camera, the method comprising the following steps:

[0045] Step 1: multiple dust sensors are arranged around the front end of the camera 16. At the same time, multiple humidity sensors are also installed on the camera 16 to monitor the humidity on the surface of the camera 16. The dust sensors and the humidity sensors are arranged alternately. The dust sensors and the humidity sensors transmit the detected data to the cleaning controller 5 for processing;

[0046] Step 2: After the cleaning controller 5 completes the data processing, the data is compared with the threshold value set in the cleaning controller 5. When the dust on the surface of the camera 16 exceeds the threshold value, the cleaning controller 5 first controls the second cylinder 15 to work, pushes the steering gear 14 to move forward, and the steering gear 14 adjusts the angle of the water spraying member 12 to spray the cleaning liquid onto the surface of the camera 16 through the delivery pipe 13;

[0047] Step 3: Next, the cleaning controller 5 controls the driving motor 20 to operate, and the driving motor 20 drives the active bevel gear 21 to rotate, drives the driven bevel gear 22 meshing with the active bevel gear 21 to rotate, and then drives the threaded rod 23 to rotate. Since the threaded rod 23 is threadedly connected with the limit block 18, and under the limiting action of the slide bar 4, the limit block 18 drives the camera 16 to move inside the rearview mirror 1;

[0048] Step 4, when the camera 16 moves to the inner diameter position of the limit ring 11, the drive motor 20 stops running, and then the first cylinder 10 extends to push the connecting ring 9 to rotate, and the connecting ring 9 drives the cleaning wipe 8 to move through the connecting curved rod 6, and the cleaning wipe 8 is retracted to wipe and clean the surface of the camera 16, and then the cleaning wipe 8 is kept in the retracted and closed state, and the drive motor 20 is restarted and reversed to push the camera 16 forward, so that the lens of the camera 16 is against the rear side of the cleaning wipe 8, and then the drive motor 20 stops working again, and the first cylinder 10 repeats the extension and retraction work, so that the cleaning wipe 8 is repeatedly opened and closed, so that the rear side of the cleaning wipe 8 rubs against the lens of the camera 16 to clean the camera 16;

[0049] Step 5: When the humidity on the surface of the camera 16 is too high and the water mist generated exceeds the set threshold, the second cylinder 15 and the steering gear 14 do not work, and only the drive motor 20 and the first cylinder 10 work to wipe the lens of the camera 16;

[0050] Step six, finally when the vehicle stops and is locked, the drive motor 20 operates to drive the camera 16 to retract into the rearview mirror 1, and the first cylinder 10 further extends to keep the cleaning wipe 8 closed, thereby protecting the camera 16.

[0051] The following is an introduction in conjunction with specific embodiments:

[0052] Embodiment 1:

[0053] When the dust on the lens surface of the camera 16 reaches a threshold value but does not exceed the threshold value too much, image acquisition can still be performed, but when the picture is not clear, the drive motor 20 is turned on to drive the camera 16 to move toward the inside of the rearview mirror 1. After the dust on the surface of the camera 16 is wiped lightly by the cleaning wipe 8, the drive motor 20 is restarted and reversed to push the camera 16 forward until the camera 16 is pushed out of the fixing ring 7 and returns to its original position, and image acquisition continues.

[0054] Embodiment 2:

[0055] When the dust on the lens surface of the camera 16 exceeds the threshold and normal image acquisition cannot be performed, the cleaning controller 5 first controls the second cylinder 15 to work, pushing the steering gear 14 to move forward, the steering gear 14 adjusts the angle of the water spraying member 12, and sprays the cleaning liquid onto the surface of the camera 16 through the delivery pipe 13 to rinse the camera 16. Then the driving motor 20 is turned on to drive the camera 16 to move toward the inside of the rearview mirror 1, first lightly wiped by the cleaning wipe 8, and then the cleaning wipe 8 is kept in a retracted and closed state. The driving motor 20 is restarted and reversed to push the camera 16 forward, so that the lens of the camera 16 is against the rear side of the cleaning wipe 8. After that, the driving motor 20 stops working again, and the first cylinder 10 repeats the extension and retraction work, so that the cleaning wipe 8 is repeatedly opened and closed, so that the rear side of the cleaning wipe 8 rubs against the lens of the camera 16 to clean the camera 16.

[0056] Embodiment three:

[0057] In rainy and foggy weather or when there is a temperature difference, when the humidity sensor detects that there is water mist on the lens surface of the camera 16, the drive motor 20 starts to operate, driving the camera 16 to move toward the inside of the rearview mirror 1. After the water mist on the surface of the camera 16 is wiped off by the cleaning wipe 8, the drive motor 20 restarts and reverses, pushing the camera 16 forward until the camera 16 is pushed out of the fixing ring 7 and returns to its original position, and image acquisition continues.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic dust cleaning system for an electronic exterior rearview mirror camera, characterized in that: The invention comprises a rearview mirror (1), wherein a connecting bracket (3) is fixedly connected to the right side of the rearview mirror (1), a cleaning controller (5) is fixedly connected to the bottom of the inner wall of the rearview mirror (1), a driving motor (20) is fixedly connected to the top of the cleaning controller (5), an active bevel gear (21) is fixedly connected to the output end of the driving motor (20), a driven bevel gear (22) is meshingly connected to the surface of the active bevel gear (21), a threaded rod (23) is fixedly connected to the center position of the front side of the driven bevel gear (22), a surface of the threaded rod (23) is threadedly connected to a limit block (18), and the limit block (18) is fixedly connected to the front side of the drive motor (20). 8) A camera (16) is fixedly connected to the top, and the left and right sides of the camera (16) are fixedly connected to limit plates (17), the front side of the rearview mirror (1) is fixedly connected to a sealing mirror (2), and the rear side of the sealing mirror (2) is provided with a cleaning component, and the cleaning component is used to clean the camera (16), the bottom of the inner wall of the rearview mirror (1) is fixedly connected to a second cylinder (15), the output end of the second cylinder (15) is fixedly connected to a steering gear (14), the output end of the steering gear (14) is fixedly connected to a water spray component (12), and the front side of the inner diameter of the water spray component (12) is fixedly connected to a delivery pipe (13).

2. The automatic dust cleaning system for an electronic exterior rearview mirror camera according to claim 1, characterized in that: The cleaning assembly comprises a fixing ring (7), the fixing ring (7) being fixedly connected to the sealing mirror (2), the fixing ring (7) being rotatably connected to a connecting ring (9) at the rear side, the connecting ring (9) being rotatably connected to evenly distributed connecting curved rods (6), the inner sides of the connecting curved rods (6) being rotatably connected to cleaning wipes (8), the rear sides of the cleaning wipes (8) being rotatably connected to a limiting ring (11), and the left side of the connecting ring (9) being rotatably connected to a first cylinder (10).

3. The automatic dust cleaning system for an electronic exterior rearview mirror camera according to claim 2, characterized in that: A connecting block (19) is fixedly connected to the rear side of the inner wall of the rearview mirror (1), and a soft rubber sleeve (24) is fixedly connected between the two limiting plates (17) and the connecting block (19).

4. The automatic dust cleaning system for an electronic exterior rearview mirror camera according to claim 3, characterized in that: Two contact electrodes (25) are arranged on the inner diameter of the two soft rubber sleeves (24); the two contact electrodes (25) on the rear side are fixedly connected to the connection block (19), and the two contact electrodes (25) on the front side are fixedly connected to the limit plates (17) respectively.

5. The automatic dust cleaning system for an electronic exterior rearview mirror camera according to claim 1, characterized in that: The surface of the threaded rod (23) is rotatably connected to a support block (26), the front end of the threaded rod (23) penetrates and extends to the front side of the support block (26), and the front end of the threaded rod (23) penetrates and extends to the front side of the limit block (18).

6. The automatic dust cleaning system for an electronic exterior rearview mirror camera according to claim 1, characterized in that: The two opposite sides of the two limit plates (17) are slidably connected to a slide bar (4), and the slide bar (4) is fixedly connected to the rear side of the inner wall of the rearview mirror (1).

7. A method for using an automatic dust cleaning system for an electronic exterior rearview mirror camera, characterized in that: The automatic dust cleaning system for an electronic exterior rearview mirror camera according to any one of claims 1 to 6 comprises the following steps: Step 1: a plurality of dust sensors are arranged around the front end of the camera (16); at the same time, a plurality of humidity sensors are also installed on the camera (16) for monitoring the humidity on the surface of the camera (16); the dust sensors and the humidity sensors are arranged alternately; the dust sensors and the humidity sensors transmit the detected data to the cleaning controller (5) for processing; Step 2: After the cleaning controller (5) completes the data processing, the data is compared with a threshold value set in the cleaning controller (5). When the dust on the surface of the camera (16) exceeds the threshold value, the cleaning controller (5) first controls the second cylinder (15) to work, pushing the steering gear (14) to move forward, and the steering gear (14) adjusts the angle of the water spraying member (12) to spray the cleaning liquid onto the surface of the camera (16) through the delivery pipe (13); Step 3: Next, the cleaning controller (5) controls the driving motor (20) to operate, and the driving motor (20) drives the active bevel gear (21) to rotate, drives the driven bevel gear (22) meshed with the active bevel gear (21) to rotate, and then drives the threaded rod (23) to rotate. Since the threaded rod (23) is threadedly connected to the limit block (18), and under the limiting action of the slide bar (4), the limit block (18) drives the camera (16) to move toward the inside of the rearview mirror (1); Step 4, when the camera (16) moves to the inner diameter position of the limit ring (11), the drive motor (20) stops running, then the first cylinder (10) extends to push the connecting ring (9) to rotate, the connecting ring (9) drives the cleaning wipe (8) to move through the connecting curved rod (6), the cleaning wipe (8) is retracted, and the surface of the camera (16) is wiped and cleaned, then the cleaning wipe (8) remains retracted and closed, the drive motor (20) restarts and reverses, pushes the camera (16) forward, so that the lens of the camera (16) abuts against the rear side of the cleaning wipe (8), and then the drive motor (20) stops working again, the first cylinder (10) repeats the extension and retraction work, so that the cleaning wipe (8) is repeatedly opened and closed, so that the rear side of the cleaning wipe (8) rubs against the lens of the camera (16), and the camera (16) is cleaned; Step 5, when the humidity on the surface of the camera (16) is too high and the water mist generated exceeds the set threshold, the second cylinder (15) and the steering gear (14) do not work, and only the drive motor (20) and the first cylinder (10) work to wipe the lens of the camera (16); Step six, finally when the vehicle stops and is locked, the drive motor (20) operates to drive the camera (16) to retract into the rearview mirror (1), and further the first cylinder (10) extends so that the cleaning wipe (8) remains folded and closed, thereby protecting the camera (16).

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