Lightweight anti-dazzling rearview mirror and manufacturing method thereof

Abstract

The invention belongs to the technical field of rearview mirrors, and discloses a light-weight anti-dazzling rearview mirror and a manufacturing method thereof.The light-weight anti-dazzling rearview mirror comprises a shell, a scraping assembly and a driving assembly, one end of the shell is open, a baffle is connected to the inner wall of the side, close to the open end, of the shell, and a plurality of drainage holes are formed in the bottom end of the inner wall of the shell; according to the rearview mirror structure with the automatic water wiping function, the movable mirror surface and the wiping assembly capable of automatically sliding in a reciprocating mode are designed for solving the problem that the mirror surface of the rearview mirror is prone to being blocked by rainwater in the driving process in rainy days, and the sight line is affected, so that the rearview mirror can be automatically wiped under the condition that observation of a driver is not affected. A windscreen wiper is simulated to continuously clean the mirror surface, the mirror surface is effectively kept clear, the whole device is made of light materials, the functionality and the whole vehicle weight reduction requirement are both considered, the mirror surface has the anti-dazzling function, and the device is suitable for various safe driving scenes in complex weather and has high practicability and popularization value.

Description

Technical Field

[0001] The present invention relates to the technical field of rearview mirrors, and particularly to a lightweight anti-glare rearview mirror and a manufacturing method thereof. Background Art

[0002] With the development of the automotive industry, as an important component for driving vision safety, the functions of rearview mirrors have been continuously improved. Currently, most rearview mirrors widely used on the market adopt lightweight plastics or composite materials as the housing to reduce the overall vehicle weight and meet the vehicle lightweight design requirements. At the same time, through methods such as mirror coating, optical color adjustment, or built-in color-changing films, a certain degree of anti-glare effect is achieved to reduce the interference of strong light from the following vehicle during night driving.

[0003] However, during rainy driving, the surface of the rearview mirror is extremely easy to be covered with water droplets, seriously affecting the driver's judgment of the rear view. To address this problem, some vehicles integrate heating elements in the rearview mirror for defogging, but the heating has limited immediate effect on clearing raindrops. There are also some vehicle models that attempt to wash the mirror surface through external spraying, but they cannot continuously and effectively remove the attached rainwater. Especially during continuous rainfall or when the vehicle is driving at a low speed, the water droplets are difficult to slide off in time, easily forming a visual obstacle. Summary of the Invention

[0004] The present invention aims to provide a lightweight anti-glare rearview mirror and a manufacturing method thereof to solve the problems proposed in the above background art. The present invention provides a rearview mirror structure with an automatic wiper function. Aiming at the problem that the rearview mirror surface is easily blocked by rainwater and affects the line of sight during rainy driving, a movable mirror surface and a scraping component that can automatically reciprocate and slide are designed. It can continuously clean the mirror surface by simulating a windshield wiper without affecting the driver's observation, effectively keeping the mirror surface clear. Drainage holes are provided in the structure to ensure that the scraped rainwater is quickly discharged. Through the heat dissipation holes that can be opened and closed at the top and the heating wire used to heat the mirror surface, rapid ventilation and drying inside the housing can be achieved after the mirror surface is cleaned, preventing water accumulation and dampness in the housing from affecting the operation of components. The overall device is designed with lightweight materials, taking into account both functionality and the vehicle weight reduction requirements. The mirror surface has an anti-glare function, is suitable for safe driving scenarios in various complex weather conditions, and has strong practicality and promotion value.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lightweight anti-glare rearview mirror and its manufacturing method, including a housing, a scraping component, and a driving component. One end of the housing is open, and a baffle is connected to the inner wall of the housing near one side of its open end. A plurality of drainage holes are opened at the bottom end of the inner wall of the housing, and a first electric push rod is connected to the inner wall of the housing on the side far from the open end. The output end of the first electric push rod is connected to a mirror surface. The scraping component includes a bracket, which is arranged in the inner cavity of the housing and is at the same horizontal position as the mirror surface. One end of the bracket close to the inner cavity of the housing is connected with a scraping strip. The driving component is arranged in the inner cavity of the housing, and the driving component can drive the scraping component to move horizontally along the length direction of the mirror surface.

[0007] Preferably, the driving component includes a servo motor, a reciprocating lead screw, and a pair of slide rails. The servo motor is connected to the upper part of the inner wall of the housing. The reciprocating lead screw is connected to the output end of the servo motor and is rotatably connected to the inner wall of the housing.

[0008] Preferably, a pair of the slide rails are respectively connected to the inner walls of the upper and lower ends of the housing and are symmetrically arranged. The reciprocating lead screw and the slide rails are both parallel to the mirror surface.

[0009] Preferably, a lead screw sleeve used in cooperation with the reciprocating lead screw is connected to the bracket, and sliders are connected to both ends of the bracket. The sliders are slidably connected to the slide rails.

[0010] Preferably, a slide rail power supply is connected to the inner wall of the housing, and a heating wire is covered and connected to the surface of the mirror surface close to the inner cavity of the housing. The heating wire is electrically connected to the slide rail power supply.

[0011] Preferably, a plurality of heat dissipation holes are opened at the top end of the housing.

[0012] Preferably, a base is connected to the top end of the inner wall of the housing, and a second electric push rod is connected to the base. The output end of the second electric push rod faces the direction where the heat dissipation holes are located and is connected to a bottom plate.

[0013] Preferably, the bottom plate is located directly below the heat dissipation holes, and a plurality of plugs matching the heat dissipation holes are connected to the top end of the bottom plate. The plugs are made of rubber material.

[0014] Preferably, a shock-absorbing strip is connected to one end of the baffle close to the mirror surface. The shock-absorbing strip is made of rubber material and is arranged around the baffle. The edge position of the mirror surface abuts against the shock-absorbing strip.

[0015] A manufacturing method of a lightweight anti-glare rearview mirror includes the following steps:

[0016] S1. Provide a housing, set an opening at one end thereof, install a baffle on the inner wall of the opening end, open a plurality of drain holes at the bottom end of the inner wall of the housing, install a first electric push rod in the inner cavity of the housing, and install a mirror on the output end of the first electric push rod. The first electric push rod can drive the mirror to move back and forth towards the opening end of the housing;

[0017] S2. Install a scraping component and a driving component in the inner cavity of the housing. The driving component can drive the scraping component to move horizontally back and forth along the length direction of the mirror. When the mirror moves backward, the horizontally moving scraping component can wipe the surface of the mirror;

[0018] S3. Install a slide rail power supply in the inner cavity of the housing, and cover and install a heating wire on the back of the mirror. Connecting the slide rail power supply to the heating wire can make the heating wire generate heat, thereby heating the mirror and also heating the inner cavity of the housing;

[0019] S4. Open a plurality of heat dissipation holes at the top end of the housing for discharging water vapor when the inner cavity of the housing is heated. Install a base on the top inner wall of the housing. The second electric push rod installed on the base can drive the bottom plate and a plurality of plugs installed at its output end to block the heat dissipation holes, so that the heat dissipation holes are only opened when the inner cavity of the housing is heated;

[0020] S5. Install a shock-absorbing strip at the inner end of the baffle. The extrusion between the mirror and the shock-absorbing strip can achieve the seal between the mirror and the baffle, preventing foreign objects from entering the inner cavity of the housing through the gap between the mirror and the baffle on non-rainy days.

[0021] The beneficial effects of this technical solution compared with the prior art:

[0022] The present invention provides a rearview mirror structure with an automatic windshield wiper function. Aiming at the problem that the rearview mirror surface is easily blocked by rainwater during rainy driving, affecting the line of sight, a movable mirror and an automatically reciprocating sliding scraping component are designed. It can continuously clean the mirror surface by simulating a windshield wiper without affecting the driver's observation, effectively keeping the mirror surface clear. Drain holes are provided in the structure to ensure that the rainwater scraped off is quickly discharged. Through the heat dissipation holes that can be opened and closed at the top and the heating wire for heating the mirror, rapid ventilation and drying inside the housing after the mirror is cleaned can be achieved, preventing water accumulation and dampness in the housing from affecting the operation of components. The overall device is designed with lightweight materials, taking into account both functionality and the vehicle weight reduction requirements. The mirror has an anti-glare function and is suitable for safe driving scenarios in various complex weather conditions, with strong practicality and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0024] Figure 2Schematic diagram of the first structure inside the housing provided by the present invention;

[0025] Figure 3 Schematic diagram of the structure of the scraping assembly provided by the present invention;

[0026] Figure 4 Schematic diagram of the second structure inside the housing provided by the present invention;

[0027] Figure 5 Schematic diagram of the third structure inside the housing provided by the present invention;

[0028] Figure 6 Schematic diagram of the partial structure provided by the present invention.

[0029] Reference numerals: 1, housing; 2, mirror; 3, baffle; 4, shock-absorbing strip; 5, first electric push rod; 6, scraping assembly; 61, bracket; 62, scraping strip; 63, lead screw sleeve; 64, slider; 7, drive assembly; 71, servo motor; 72, reciprocating lead screw; 73, slide rail; 8, power supply; 9, heating wire; 10, drain hole; 11, heat dissipation hole; 12, base; 13, second electric push rod; 14, bottom plate; 15, plug. Detailed implementation manners

[0030] The present invention will be further described in detail below in conjunction with the drawings and embodiments:

[0031] As Figures 1-4 shown, a lightweight anti-glare rearview mirror and its manufacturing method include a housing 1, a scraping assembly 6 and a drive assembly 7. One end of the housing 1 is open, and a baffle 3 is connected to the inner wall of the housing 1 near one side of its open end. A plurality of drain holes 10 are opened at the bottom end of the inner wall of the housing 1, and a first electric push rod 5 is connected to the inner wall of the housing 1 far from the open end. The output end of the first electric push rod 5 is connected to a mirror 2. The scraping assembly 6 includes a bracket 61. The bracket 61 is arranged in the inner cavity of the housing 1 and is at the same horizontal position as the mirror 2. A scraping strip 62 is connected to one end of the bracket 61 close to the inner cavity of the housing 1. The drive assembly 7 is arranged in the inner cavity of the housing 1. The drive assembly 7 can drive the scraping assembly 6 to move horizontally along the length direction of the mirror 2. The drive assembly 7 includes a servo motor 71, a reciprocating lead screw 72 and a pair of slide rails 73. The servo motor 71 is connected to the upper part of the inner wall of the housing 1. The reciprocating lead screw 72 is connected to the output end of the servo motor 71, and the reciprocating lead screw 72 is rotatably connected to the inner wall of the housing 1. A pair of slide rails 73 are respectively connected to the inner walls of the upper and lower ends of the housing 1 and are symmetrically arranged. The reciprocating lead screw 72 and the slide rails 73 are both parallel to the mirror 2. A lead screw sleeve 63 that cooperates with the reciprocating lead screw 72 is connected to the bracket 61, and sliders 64 are connected to both ends of the bracket 61. The sliders 64 are slidably connected to the slide rails 73.

[0032] With the development of the automotive industry, as an important component for driving vision safety, the functions of rearview mirrors have been continuously improved. Currently, most rearview mirrors widely used on the market adopt lightweight plastics or composite materials as the housing to reduce the overall vehicle weight and meet the requirements of vehicle lightweight design. At the same time, through methods such as mirror coating, optical color adjustment, or built-in color-changing films, a certain degree of anti-glare effect is achieved to reduce the interference of strong light from the following vehicle during night driving. However, during rainy driving, the surface of the rearview mirror is extremely easy to be covered by water droplets, seriously affecting the driver's judgment of the rear vision. To address this problem, some vehicles integrate heating elements in the rearview mirror for defogging, but the immediate effect of heating on removing raindrops is limited. There are also some vehicle models that attempt to wash the mirror surface through external spraying, but they cannot continuously and effectively remove the attached rainwater. Especially during continuous rainfall or when the vehicle is driving at a low speed, the water droplets are difficult to slide off in time, easily forming a visual obstacle.

[0033] In this solution, the housing 1 is installed on both sides of the front end of the vehicle. During rainy days, water droplets will accumulate on the surface of the mirror 2, affecting the line of sight. Some existing car owners will wipe it with a hand-held windshield wiper, but this behavior is highly dangerous during vehicle driving. Therefore, this solution proposes a structure for automatically removing water droplets from the mirror 2, enabling the rearview mirror to be used normally under more adverse weather conditions. When driving in the rain, the car owner can activate the first electric push rod 5 to drive the mirror 2 to move a short distance into the inner cavity of the housing 1, which does not affect the car owner's normal observation of the mirror 2. The gap left between the moved mirror 2 and the baffle 3 allows the scraping assembly 6 to move. At this time, the car owner can activate the servo motor 71 to drive the reciprocating lead screw 72 to rotate. Through the cooperation of the reciprocating lead screw 72 and the lead screw sleeve 63, the bracket 61 can be driven to slide reciprocally between a pair of slide rails 73, thereby driving the reciprocating lead screw 72 by the servo motor 71 to scrape the surface of the mirror 2, continuously removing the rainwater on the surface of the mirror 2 to ensure that water droplets cannot accumulate on the surface of the mirror 2. The bracket 61 is a narrow strip, with minimal obstruction to the car owner's field of vision, simulating the use effect of the windshield wiper of a car. The rainwater scraped off by the scraping strip 62 will enter the inner cavity of the housing 1 through the gap between the mirror 2 and the baffle 3, and then be drained away through the drain hole 10 at the bottom of the housing 1.

[0034] A slide rail power supply 8 is connected to the inner wall of the housing 1, and an electric heating wire 9 is covered and connected to the surface of the mirror 2 on the side close to the inner cavity of the housing 1. The electric heating wire 9 is electrically connected to the slide rail power supply 8.

[0035] In this solution, the mirror surface 2 can be heated by the slide rail power supply 8 and the heating wire 9 provided, which can prevent fogging on the surface of the mirror 2 and is applicable to vehicles driving in environments with large temperature differences and high humidity. This is a common technical means in the field and has been widely used. However, in this solution, the user can also briefly start the slide rail power supply 8 after the rain stops and heat the inner cavity of the outer shell 1 through the heating wire 9, which can prompt the residual moisture in the outer shell 1 to evaporate quickly and be discharged through the heat dissipation holes 11 at the top of the outer shell 1. This setting can maintain a dry environment in the inner cavity of the outer shell 1 and prevent moisture from affecting the first electric push rod 5 or the slide rail power supply 8.

[0036] As Figures 5-6 shown, a plurality of heat dissipation holes 11 are opened at the top end of the outer shell 1. The top end inner wall of the outer shell 1 is connected with a base 12. A second electric push rod 13 is connected to the base 12. The output end of the second electric push rod 13 faces the direction where the heat dissipation holes 11 are located and is connected with a bottom plate 14. The bottom plate 14 is located directly below the heat dissipation holes 11, and a plurality of plugs 15 matching the heat dissipation holes 11 are connected to the top end of the bottom plate 14. The plugs 15 are made of rubber material.

[0037] In this solution, the vehicle owner only opens the heat dissipation holes 11 when heating and drying the inner cavity of the outer shell 1. At other times, the vehicle owner can start the second electric push rod 13 to drive the bottom plate 14 to move upward, and then block the plurality of heat dissipation holes 11 through the plurality of plugs 15, so as to prevent rainwater from entering the outer shell 1 through the heat dissipation holes 11 during rainy days and increasing the drainage pressure of the drainage holes 10.

[0038] One end of the baffle 3 close to the mirror surface 2 is connected with a shock-absorbing strip 4. The shock-absorbing strip 4 is made of rubber material and is arranged around the baffle 3. The edge position on the surface of the mirror surface 2 abuts against the shock-absorbing strip 4.

[0039] In this solution, when the mirror surface 2 abuts against the baffle 3, the shock-absorbing strip 4 is squeezed between them. The shock-absorbing strip 4 made of rubber material has a sealing and shock-absorbing effect. It can not only prevent foreign objects from entering the inner cavity of the outer shell 1 through the gap between the mirror surface 2 and the baffle 3, but also play a certain protective role for the mirror surface 2 to avoid the surface of the mirror surface 2 from being affected by contact with the baffle 3.

[0040] A method for manufacturing a lightweight anti-glare rearview mirror includes the following steps:

[0041] S1. Provide the outer shell 1, set an opening at one end thereof, install the baffle 3 on the inner wall of the opening end, open a plurality of drainage holes 10 at the bottom end inner wall of the outer shell 1, install the first electric push rod 5 in the inner cavity of the outer shell 1, and install the mirror surface 2 at the output end of the first electric push rod 5. The first electric push rod 5 can drive the mirror surface 2 to move back and forth in the direction of the opening end of the outer shell 1;

[0042] S2. Install a scraping component 6 and a driving component 7 inside the inner cavity of the housing 1. The driving component 7 can drive the scraping component 6 to move horizontally back and forth along the length direction of the mirror surface 2. When the mirror surface 2 moves backward, the horizontally moving scraping component 6 can wipe the surface of the mirror surface 2;

[0043] S3. Install a slide rail power supply 8 inside the inner cavity of the housing 1, and cover and install a heating wire 9 on the back of the mirror surface 2. Connecting the slide rail power supply 8 to the heating wire 9 can make the heating wire 9 generate heat, thereby heating the mirror surface 2 and also heating the inner cavity of the housing 1;

[0044] S4. Open a plurality of heat dissipation holes 11 at the top end of the housing 1 for discharging water vapor when the inner cavity of the housing 1 is heated. Install a base 12 at the top end of the inner wall of the housing 1. The second electric push rod 13 installed on the base 12 can drive the bottom plate 14 and a plurality of plugs 15 installed at its output end to block the heat dissipation holes 11, so that the heat dissipation holes 11 are only opened when the inner cavity of the housing 1 is heated;

[0045] S5. Install a shock-absorbing strip 4 at the inner end of the baffle 3. The extrusion between the mirror surface 2 and the shock-absorbing strip 4 can achieve the seal between the mirror surface 2 and the baffle 3, preventing foreign objects from entering the inner cavity of the housing 1 through the gap between the mirror surface 2 and the baffle 3 on non-rainy days.

[0046] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A lightweight anti-glare rearview mirror, characterized in that, Comprising: A housing (1), one end of the housing (1) is open, and a baffle (3) is connected to the inner wall of the housing (1) near one side of its open end. A plurality of drain holes (10) are opened at the bottom end of the inner wall of the housing (1), and a first electric push rod (5) is connected to the inner wall of the housing (1) on the side far from the open end. The output end of the first electric push rod (5) is connected to a mirror surface (2); A scraping assembly (6), the scraping assembly (6) includes a bracket (61), the bracket (61) is arranged in the inner cavity of the housing (1) and is at the same horizontal position as the mirror surface (2), and a scraping strip (62) is connected to one end of the bracket (61) close to the inner cavity of the housing (1); A driving assembly (7), the driving assembly (7) is arranged in the inner cavity of the housing (1), and the driving assembly (7) can drive the scraping assembly (6) to move horizontally along the length direction of the mirror surface (2).

2. The lightweight anti-glare rearview mirror according to claim 1, characterized in that: The driving assembly (7) includes a servo motor (71), a reciprocating lead screw (72) and a pair of slide rails (73). The servo motor (71) is connected to the upper part of the inner wall of the housing (1), the reciprocating lead screw (72) is connected to the output end of the servo motor (71), and the reciprocating lead screw (72) is rotatably connected to the inner wall of the housing (1).

3. The lightweight anti-glare rearview mirror according to claim 2, characterized in that: A pair of the slide rails (73) are respectively connected to the inner walls of the upper and lower ends of the housing (1) and are symmetrically arranged. The reciprocating lead screw (72) and the slide rails (73) are both parallel to the mirror surface (2).

4. The lightweight anti-glare rearview mirror according to claim 3, wherein: A lead screw sleeve (63) which is matched with the reciprocating lead screw (72) is connected to the bracket (61), and sliders (64) are connected to both ends of the bracket (61). The sliders (64) are slidably connected to the slide rails (73).

5. The lightweight anti-glare rearview mirror according to claim 1, wherein: A slide rail power supply (8) is connected to the inner wall of the housing (1), and a heating wire (9) is covered and connected to the surface of the mirror surface (2) on the side close to the inner cavity of the housing (1). The heating wire (9) is electrically connected to the slide rail power supply (8).

6. The lightweight anti-glare rearview mirror according to claim 1, characterized in that: A plurality of heat dissipation holes (11) are opened at the top end of the housing (1).

7. The lightweight anti-glare rearview mirror according to claim 6, wherein: A base (12) is connected to the top end of the inner wall of the housing (1), a second electric push rod (13) is connected to the base (12), and the output end of the second electric push rod (13) faces the direction where the heat dissipation holes (11) are located and is connected to a bottom plate (14).

8. The lightweight anti-glare rearview mirror according to claim 7, wherein: The bottom plate (14) is located directly below the heat dissipation holes (11), and a plurality of plugs (15) which are matched with the heat dissipation holes (11) are connected to the top end of the bottom plate (14). The plugs (15) are made of rubber material.

9. The lightweight anti-glare rearview mirror according to claim 1, characterized in that: A shock-absorbing strip (4) is connected to one end of the baffle (3) close to the mirror surface (2). The shock-absorbing strip (4) is made of rubber material and is arranged around the baffle (3). The edge position of the surface of the mirror surface (2) abuts against the shock-absorbing strip (4).

10. The manufacturing method of a lightweight anti-glare rearview mirror according to any one of claims 1-9, characterized in that, Including the following steps: S1. Provide a housing (1), and set an opening at one end thereof. Install a baffle (3) on the inner wall of the opening end, and open a plurality of drain holes (10) at the bottom end of the inner wall of the housing (1). Install a first electric push rod (5) in the inner cavity of the housing (1), and install a mirror surface (2) at the output end of the first electric push rod (5). The first electric push rod (5) can drive the mirror surface (2) to move back and forth in the direction of the opening end of the housing (1); S2. Install a scraping component (6) and a driving component (7) in the inner cavity of the housing (1). The driving component (7) can drive the scraping component (6) to move horizontally back and forth along the length direction of the mirror surface (2). When the mirror surface (2) moves backward, the horizontally moving scraping component (6) can wipe the surface of the mirror surface (2); S3. Install a slide rail power supply (8) in the inner cavity of the housing (1), and cover and install a heating wire (9) on the back surface of the mirror surface (2). Connecting the slide rail power supply (8) to the heating wire (9) can make the heating wire (9) generate heat, thereby heating the mirror surface (2), and at the same time, it can also heat the inner cavity of the housing (1); S4. Open a plurality of heat dissipation holes (11) at the top end of the housing (1) for discharging water vapor when the inner cavity of the housing (1) is heated. Install a base (12) on the top inner wall of the housing (1). The second electric push rod (13) installed on the base (12) can drive the bottom plate (14) and a plurality of plugs (15) installed at its output end to block the heat dissipation holes (11), so that the heat dissipation holes (11) are only opened when the inner cavity of the housing (1) is heated; S5. Install a shock-absorbing strip (4) at the inner end of the baffle (3). The extrusion between the mirror surface (2) and the shock-absorbing strip (4) can achieve the seal between the mirror surface (2) and the baffle (3), avoiding foreign objects from entering the inner cavity of the housing (1) through the gap between the mirror surface (2) and the baffle (3) on non-rainy days.

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