Outside rear-view mirror assembly with self-cleaning function

Abstract

The utility model relates to the technical field of automobile parts, and discloses an outside rear-view mirror assembly with a self-cleaning function, which comprises a rear-view mirror shell, a lens is arranged in the rear-view mirror shell, a demisting cleaning component is arranged at the right end of the rear-view mirror shell, an ultraviolet light source is fixedly mounted on the front side in the rear-view mirror shell, and a water inlet is formed in the rear-view mirror shell. The demisting cleaning assembly comprises a mounting seat and a shell, a small motor is fixedly mounted in the mounting seat, a heating coil is fixedly mounted on the bottom surface in the rearview mirror shell, a photocatalyst and a liquid silica gel coating are arranged on the surface of a lens, and the liquid silica gel coating enables the surface of the lens to have super-hydrophobicity and self-cleaning characteristics. The ultraviolet light source irradiates the surface of the coating, photon energy activates a photocatalyst on the coating of the lens and decomposes dirt or organic matter, the small motor rotates to drive the fan blades to rotate, the demisting and cleaning effects are achieved, the rearview mirror is heated through electric energy of the heating coil, water vapor is rapidly evaporated, and therefore the surface of the rearview mirror is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an exterior rearview mirror assembly with a self-cleaning function. Background Art

[0002] The car's exterior rearview mirrors allow the driver to observe the situation on the side and rear of the vehicle, especially when changing lanes or turning, so that they can detect danger in time and reduce or avoid traffic accidents. However, on rainy days, the rearview mirror surface is blurred due to rain, resulting in poor vision for the driver, which can easily lead to traffic accidents due to observation errors and misjudgment.

[0003] After searching, the applicant found that a Chinese patent disclosed "a car rearview mirror with automatic cleaning function", and its publication (announcement) number is "CN207842805U". The patent mainly includes a fixed shell, and equidistantly distributed card blocks are welded on the outer wall of one side of the fixed shell, and a fixed back plate is clamped on the inner wall of one side of the card block, and a heating film is bonded on the inner wall of one side of the fixed back plate. The inner wall of one side of the fixed back plate is connected to the rearview mirror body by bolts. The utility model can perform a wiper operation on the surface of the rearview mirror body on rainy days, thereby providing the driver with a clearer rearview field of view, and the cleaning liquid can be automatically sprayed on the surface of the rearview mirror body. However, in the above-mentioned prior art, wiping the surface of the rearview mirror by a rotating wiper may leave marks on the rearview mirror, resulting in blurred or obstructed vision, affecting the driver's line of sight and driving safety. For this reason, we propose an exterior rearview mirror assembly with a self-cleaning function. Utility Model Content

[0004] The purpose of the utility model is to provide an exterior rearview mirror assembly with a self-cleaning function, so as to solve the problem proposed in the above background technology that wiping the rearview mirror surface by a rotating wiper may leave marks on the rearview mirror, resulting in blurred or obstructed vision, affecting the driver's vision and driving safety.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exterior rearview mirror assembly with a self-cleaning function, comprising a rearview mirror housing, a lens is arranged inside the rearview mirror housing, a defogger cleaning component is arranged at the right end of the rearview mirror housing, an ultraviolet light source is fixedly installed on the front side of the interior of the rearview mirror housing, the defogger cleaning component comprises a mounting seat and a shell, a small motor is fixedly installed inside the mounting seat, the output end of the small motor is connected to a fan blade via a rotating shaft, a vent is provided at one end of the shell close to the lens, a heating coil is fixedly installed on the inner bottom surface of the rearview mirror housing, and a photocatalyst and a liquid silicone coating are arranged on the surface of the lens.

[0006] As a preferred embodiment, an anti-collision strip is provided on the outer surface of the left end of the rearview mirror housing, and magnetic suction plates are fixedly connected to the inner walls on both sides of the anti-collision strip. A plurality of drainage ports are provided on the front inner wall of the rearview mirror housing and behind the lens.

[0007] As a preferred solution, the shell is fixedly installed on the right outer surface of the rearview mirror housing, the mounting base is fixedly installed on the right end of the shell, the rotating shaft is fixedly connected to the output end of the small motor, the fan blades are fixedly installed on the circumferential surface of the rotating shaft, and a dust net is provided inside the vent.

[0008] As a preferred solution, the photocatalyst is fixedly mounted on the surface of the lens, and the liquid silicone coating is disposed on the surface of the photocatalyst.

[0009] As a preferred solution, a magnetic gasket that matches the magnetic suction sheet is provided on the left outer surface of the rearview mirror housing.

[0010] As a preferred solution, the ultraviolet light source, the small motor and the heating coil are all electrically connected to the internal power supply of the automobile.

[0011] Technical effects and advantages of the utility model:

[0012] 1. By setting a photocatalyst and liquid silicone coating on the surface of the lens, the liquid silicone coating makes the lens surface super-hydrophobic and self-cleaning. Water droplets will form balls and roll down to take away the dirt and be discharged from the drain. When dirt is generated on the lens surface, the ultraviolet light source irradiates the coating surface. The photon energy activates the photocatalyst on the lens coating to generate photogenerated electrons and photogenerated holes. The photogenerated electrons and photogenerated holes can participate in the redox reaction, decompose the dirt or organic matter, and convert it into harmless substances, thereby cleaning the surface. At the same time, the rotation of the small motor can drive the fan blades to rotate through the rotating shaft, and blow to the lens through the vent to achieve a defogging and cleaning effect. The rearview mirror is heated by the electric energy of the heating coil to make the water vapor evaporate quickly, thereby cleaning the rearview mirror surface;

[0013] 2. By installing magnetic suction plates on the inner walls of both ends of the anti-collision strip, the anti-collision strip is fixed on the outer wall of the rearview mirror housing using the principle of magnetic attraction, which is easy to disassemble and install, and prevents the rearview mirror housing from being damaged during driving, thereby preventing the lens from being damaged and affecting driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from another perspective;

[0018] Figure 5 It is a schematic diagram of the internal structure of the lens of the present invention.

[0019] In the figure: 1. rearview mirror housing; 2. lens; 3. anti-collision strip; 4. defog cleaning component; 5. ultraviolet light source; 6. magnetic suction plate; 7. drain outlet; 8. heating coil; 21. photocatalyst; 22. liquid silicone coating; 41. mounting base; 42. housing; 43. small motor; 44. rotating shaft; 45. fan blades; 46. vent; 47. dust net. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1:

[0022] Please refer to the attached Figure 1 - Attachment Figure 5 , an exterior rearview mirror assembly with a self-cleaning function, comprising a rearview mirror housing 1, a lens 2 is arranged inside the rearview mirror housing 1, a defogger cleaning component 4 is arranged at the right end of the rearview mirror housing 1, an ultraviolet light source 5 is fixedly installed on the front side of the interior of the rearview mirror housing 1, the defogger cleaning component 4 comprises a mounting seat 41 and a shell 42, a small motor 43 is fixedly installed inside the mounting seat 41, a fan blade 45 is connected to the output end of the small motor 43 through a rotating shaft 44, a vent 46 is opened at one end of the shell 42 close to the lens 2, a heating coil 8 is fixedly installed on the inner bottom surface of the rearview mirror housing 1, The surface of the lens 2 is provided with a photocatalyst 21 and a liquid silicone coating 22, the shell 42 is fixedly installed on the right outer surface of the rearview mirror housing 1, the mounting seat 41 is fixedly installed on the right end of the shell 42, the rotating shaft 44 is fixedly connected to the output end of the small motor 43, the fan blades 45 are fixedly installed on the circumferential surface of the rotating shaft 44, and the inside of the vent 46 is provided with a dustproof net 47, the photocatalyst 21 is fixedly installed on the surface of the lens 2, the liquid silicone coating 22 is arranged on the surface of the photocatalyst 21, and the ultraviolet light source 5, the small motor 43 and the heating coil 8 are all electrically connected to the internal power supply of the car.

[0023] The output end of the small motor 43 is connected to the fan blade 45 through the rotating shaft 44. The rotation of the fan blade 45 blows the wind out through the vent 46 to achieve a defog effect. A heating coil 8 is fixedly installed on the inner bottom surface of the rearview mirror housing 1. The heating coil 8 is arranged in a circular rotating shape. The ultraviolet light source 5, the small motor 43 and the heating coil 8 are all electrically connected to the internal power supply of the car and can be controlled by the internal power supply of the car.

[0024] Specifically, a photocatalyst 21 and a liquid silicone coating 22 are provided on the surface of the lens 2, and the liquid silicone coating 22 makes the surface of the lens 2 have super-hydrophobicity and self-cleaning properties. Water droplets will form a spherical shape and roll down to take away the dirt and be discharged from the drain port 7. When dirt is generated on the surface of the lens 2, the ultraviolet light source 5 irradiates the coating surface, and the photon energy activates the photocatalyst 21 on the coating of the lens 2, so that it generates photogenerated electrons and photogenerated holes. The photogenerated electrons and photogenerated holes can participate in the redox reaction, decompose the dirt or organic matter, and convert it into harmless substances, thereby cleaning the surface. At the same time, the rotation of the small motor 43 can drive the fan blades 45 to rotate through the rotating shaft 44, and blow toward the lens 2 through the vent 46, thereby achieving a defogging and cleaning effect. The rearview mirror is heated by the electric energy of the heating coil 8 to make the water vapor evaporate quickly, thereby cleaning the surface of the lens 2. The dustproof net 47 is provided to prevent dust from entering the interior of the mounting seat 41 and damaging the small motor 43.

[0025] Embodiment 2:

[0026] Please refer to the attached Figure 1 - Attachment Figure 5 On the basis of the first embodiment, it is further obtained that the left end outer surface of the rearview mirror housing 1 is provided with an anti-collision strip 3, the inner walls on both sides of the anti-collision strip 3 are fixedly connected with magnetic suction sheets 6, the front inner wall of the rearview mirror housing 1 and the rear of the lens 2 are provided with a plurality of drainage ports 7, and the left outer surface of the rearview mirror housing 1 is provided with a magnetic gasket adapted to the magnetic suction sheet 6.

[0027] Magnetic suction sheets 6 are fixedly connected to the inner walls of both sides of the anti-collision strip 3 for easy installation, removal and replacement. The provision of multiple drainage ports 7 facilitates the discharge of water drops and dirt on the lens 2.

[0028] Specifically, magnetic suction plates 6 are installed on the inner walls of both ends of the anti-collision strip 3, and the anti-collision strip 3 is fixedly installed on the outer wall of the rearview mirror housing 1 by utilizing the principle of magnetic attraction, which facilitates disassembly and installation, and prevents the rearview mirror housing 1 from being damaged during driving, thereby preventing the lens 2 from being damaged and affecting driving safety.

[0029] Working principle of the utility model: The utility model is an exterior rearview mirror assembly with a self-cleaning function. First, a photocatalyst 21 and a liquid silicone coating 22 are arranged on the surface of the lens 2. The liquid silicone coating 22 makes the surface of the lens 2 have super-hydrophobicity and self-cleaning properties. Water droplets will form a spherical shape and roll down to take away the dirt and be discharged from the drain port 7. When dirt is generated on the surface of the lens 2, the ultraviolet light source 5 irradiates the coating surface, and the photon energy activates the photocatalyst 21 on the coating of the lens 2, so that it generates photogenerated electrons and photogenerated holes. The photogenerated electrons and photogenerated holes can participate in the redox reaction to decompose the dirt or Organic matter is converted into harmless substances, thereby cleaning the surface. At the same time, the rotation of the small motor 43 can drive the fan blades 45 to rotate through the rotating shaft 44, and blow to the lens 2 through the vent 46 to achieve a defogging and cleaning effect. The rearview mirror is heated by the electric energy of the heating coil 8 to make the water vapor evaporate quickly, thereby cleaning the surface of the lens 2. The dustproof net 47 is set to prevent dust from entering the interior of the mounting seat 41 to damage the small motor 43. Magnetic suction sheets 6 are installed on the inner walls of both ends of the anti-collision strip 3. The anti-collision strip 3 is fixedly installed on the outer wall of the rearview mirror housing 1 by the principle of magnetic attraction, which is easy to disassemble and install.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An exterior rearview mirror assembly with a self-cleaning function, comprising a rearview mirror housing (1), characterized in that: A lens (2) is provided inside the rearview mirror housing (1), a defogger cleaning assembly (4) is provided at the right end of the rearview mirror housing (1), an ultraviolet light source (5) is fixedly installed on the front side of the interior of the rearview mirror housing (1), the defogger cleaning assembly (4) comprises a mounting seat (41) and a shell (42), a small motor (43) is fixedly installed inside the mounting seat (41), an output end of the small motor (43) is connected to a fan blade (45) via a rotating shaft (44), a vent (46) is provided at one end of the shell (42) close to the lens (2), a heating coil (8) is fixedly installed on the inner bottom surface of the rearview mirror housing (1), and a photocatalyst (21) and a liquid silicone coating (22) are provided on the surface of the lens (2).

2. The exterior rearview mirror assembly with self-cleaning function according to claim 1, characterized in that: The left end outer surface of the rearview mirror housing (1) is provided with an anti-collision strip (3), and the inner walls on both sides of the anti-collision strip (3) are fixedly connected with magnetic suction plates (6). The front inner wall of the rearview mirror housing (1) is provided with a plurality of drainage openings (7) located behind the lens (2).

3. The exterior rearview mirror assembly with self-cleaning function according to claim 1, characterized in that: The shell (42) is fixedly mounted on the right outer surface of the rearview mirror housing (1), the mounting seat (41) is fixedly mounted on the right end of the shell (42), the rotating shaft (44) is fixedly connected to the output end of the small motor (43), the fan blade (45) is fixedly mounted on the circumferential surface of the rotating shaft (44), and a dustproof net (47) is provided inside the vent (46).

4. The exterior rearview mirror assembly with self-cleaning function according to claim 1, characterized in that: The photocatalyst (21) is fixedly mounted on the surface of the lens (2), and the liquid silicone coating (22) is arranged on the surface of the photocatalyst (21).

5. The exterior rearview mirror assembly with self-cleaning function according to claim 1, characterized in that: The left outer surface of the rearview mirror housing (1) is provided with a magnetic gasket that matches the magnetic suction sheet (6).

6. The exterior rearview mirror assembly with self-cleaning function according to claim 1, characterized in that: The ultraviolet light source (5), the small motor (43) and the heating coil (8) are all electrically connected to an internal power source of the automobile.

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