Water accumulation prevention rearview mirror and automobile

Abstract

The rearview mirror capable of preventing water accumulation comprises a shell, a lens and a lens support, the lens support is arranged in the shell, and the lens is arranged on the lens support; a sliding block and a driving unit are further arranged on the lens support, the sliding block is arranged on the back face of the lens in a sliding mode close to the lens, and a first magnetic attraction unit is arranged on the sliding block; the driving unit is in transmission connection with the sliding block, and the driving unit is arranged to be capable of driving the sliding block to reciprocate along an extension direction of the lens; a water scraping assembly is arranged on the mirror face side of the lens, a second magnetic attraction unit is arranged on the water scraping assembly, and the second magnetic attraction unit and the first magnetic attraction unit attract each other so that the water scraping assembly can be attached to the mirror face of the lens. A driver can conveniently observe the rearview mirror, and the driving safety during demisting is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile rearview mirrors, and in particular to an anti-water accumulation rearview mirror and an automobile. Background Art

[0002] The rearview mirror is the main tool for the driver to directly obtain external information such as the rear, sides and bottom of the car while sitting in the cab seat. When the car is driving in rainy or snowy days, due to the temperature difference between the environment and the rearview mirror, raindrops and water vapor in the air can easily condense into water droplets or water mist on the rearview mirror surface, hindering the driver from observing traffic conditions through the rearview mirror.

[0003] At present, most of the rearview mirrors of cars have electric heating function. The electric heating wire inside the rearview mirror is powered on to heat the mirror surface to remove the fog on the mirror surface. However, in the existing technology, the role of the electric heating function of the rearview mirror of cars is limited. The heating function has a significant effect on defogging, but it is slow to remove the water droplets on the rearview mirror. In addition, after the rain evaporates, the dust and other substances mixed in the rain are easily attached to the mirror surface of the rearview mirror to form scale, which will also form a new field of vision obstacle, thereby affecting the safety of driving on rainy days. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a water accumulation-proof rearview mirror to solve the problem of slow water drop removal in the prior art rearview mirror.

[0005] The present invention is achieved through the following technical solutions: a water accumulation prevention rearview mirror, comprising a shell, a lens and a lens holder, wherein the lens holder is arranged in the shell, and the lens is arranged on the lens holder; a sliding block and a driving unit are also provided on the lens holder, wherein the sliding block is slidably arranged on the back of the lens close to the lens, and a first magnetic unit is provided on the sliding block; the driving unit is transmission-connected with the sliding block, and the driving unit is configured to be able to drive the sliding block to reciprocate along an extension direction of the lens; a wiper assembly is provided on the mirror side of the lens, and a second magnetic unit is provided on the wiper assembly, and the second magnetic unit and the first magnetic unit attract each other so that the wiper assembly is attached to the mirror surface of the lens.

[0006] Furthermore, at least one end of the lens is gradually narrowed, the sliding block is arranged to reciprocate along the direction of the line connecting the two sides of the lens, and the sliding block is arranged in the corresponding area where the lens is wider; a support arm and an elastic retaining member are arranged on the sliding block, one end of the support arm is rotatably arranged on the sliding block, and the other end of the support arm extends to the corresponding narrowed end of the lens, a third magnetic unit is arranged on the support arm, the two ends of the elastic retaining member are respectively connected to the sliding block and the support arm, the elastic retaining member provides elastic force to maintain the angle of rotation of the support arm relative to the sliding block, and a limit member is provided on the lens bracket, and the limit member is arranged corresponding to the shape of the lens and the support arm, so that the support arm is limited in the area corresponding to the lens; the wiper assembly is arranged to have multiple sections that can rotate relatively corresponding to the sliding block and the support arm, and a fourth magnetic unit is still provided on a section of the wiper assembly corresponding to the support arm, and the fourth magnetic unit and the third magnetic unit are arranged to attract each other.

[0007] The corresponding sliding block and support arm of the wiper assembly are arranged in multiple sections that can rotate relatively to each other to adapt to changes in the width of the lens, thereby preventing the sliding block and the wiper assembly from falling out of the corresponding area of ​​the lens during movement, thereby being able to adapt to lenses of different shapes and facilitating the design of the rearview mirror.

[0008] Furthermore, the elastic retaining member is a sheet-like or filament-like structure made of elastic material, and two ends of the elastic retaining member are rotatably arranged on the corresponding sliding block and the supporting arm.

[0009] Furthermore, the elastic retaining member is set to correspond to the shape of one side edge of the lens, and the limiting member is set to correspond to the other side edge of the lens. When the sliding block reciprocates, the elastic retaining member and the corresponding limiting member respectively make the support arm close to the corresponding side edge of the lens and be within the lens area.

[0010] The elastic retainer is arranged on one side of the lens, so that when the sliding block is on the corresponding side of the lens, the corresponding section of the wiper assembly can be as close to the edge of the lens as possible, ensuring the wiping effect and reducing the impact on the observation mirror surface, thereby adapting to the width change of different ends of the lens. When the sliding block moves to the other side of the lens, the limiter abuts against the support arm, so that the support arm overcomes the elastic force of the elastic retainer and rotates relative to the sliding block, and the corresponding section of the wiper assembly rotates accordingly to adapt to the shape of the edge of the lens.

[0011] Furthermore, the reciprocating motion direction of the sliding block is up and down reciprocating motion.

[0012] Furthermore, the first magnetic attraction unit and the second magnetic attraction unit are both composed of magnets.

[0013] Furthermore, the first magnetic unit and the second magnetic unit both have multiple magnets, the magnets of the first magnetic unit and the magnets of the second magnetic unit are arranged in one-to-one correspondence, and the first magnetic unit has at least two magnets with opposite magnetic poles.

[0014] When installing the wiper assembly, if the wiper assembly is positioned incorrectly, repulsion or no magnetic attraction may be generated between the magnets of the first magnetic unit and the second magnetic unit, thereby reminding you of the installation error and preventing the wiper assembly from detaching from the lens or interfering with the housing during movement due to the incorrect installation position of the wiper assembly.

[0015] Furthermore, the third magnetic unit is composed of at least one magnet, and the fourth magnetic unit includes corresponding bar blocks made of ferromagnetic materials, and the bar blocks are extended along the axial direction of the support arm.

[0016] Due to the existence of magnetic force and friction resistance, there may be a slight lag between the relative rotation between the sections of the wiper assembly and the relative rotation between the sliding block and the support arm. The fourth magnetic unit uses a bar block made of ferromagnetic material, and the third magnetic unit uses a magnet, which can avoid the misalignment between the magnet and the bar block due to the asynchronous rotation position, causing the magnetic force to be reduced, thereby preventing the corresponding sections of the wiper assembly from detaching from the lens.

[0017] Furthermore, the lens bracket has a sliding rail, the sliding block is slidably arranged on the sliding rail, the driving unit includes a driving screw and a rotation driver, the sliding block is threadedly sleeved on the driving screw, and the rotation driver is used to drive the driving screw to rotate.

[0018] On the other hand, the invention further provides a car, comprising a water-proof rearview mirror as in any of the above schemes.

[0019] The beneficial effects of the present invention are:

[0020] When defogging, the driving unit drives the sliding block to slide back and forth, the first magnetic unit attracts the second magnetic unit to drive the wiper assembly to move, and the wiper assembly scrapes off the water droplets on the mirror surface. The sliding block and the driving unit are both arranged on the lens bracket on the back of the lens. When defogging, the sliding block and the driving unit will not block the mirror surface, which makes it convenient for the driver to observe the rearview mirror and improves driving safety during defogging.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of a water-proof rearview mirror provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 A left side cutaway view of the water-proof rearview mirror shown;

[0024] Figure 3 for Figure 1 The schematic diagram of the sliding block and the lens support structure shown;

[0025] Figure 4 for Figure 1 The structural schematic diagram of the wiper assembly shown;

[0026] Figure 5 for Figure 1 The schematic diagram of the structure of the sliding block and the wiper assembly shown is located on one side of the lens;

[0027] Figure 6 for Figure 1 The schematic diagram of the structure in which the sliding block and the wiper assembly are located on the other side of the lens;

[0028] Reference numerals:

[0029] 1-housing, 2-lens, 3-lens bracket, 31-sliding guide rail, 32-limiting member, 4-sliding block, 41-first magnetic unit, 42-support arm, 421-third magnetic unit, 43-elastic retaining member, 5-wiping assembly, 51-second magnetic unit, 52-fourth magnetic unit, 6-driving unit, 61-driving screw, 62-rotating drive. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0035] See also Figure 1-6 The present invention provides a technical solution: a water accumulation prevention rearview mirror, comprising a housing 1, a lens 2 and a lens bracket 3. The lens bracket 3 is arranged in the housing 1, and the lens 2 is arranged on the lens bracket 3. The lens bracket 3 is also provided with a sliding block 4 and a driving unit 6. The sliding block 4 is slidably arranged on the back of the lens 2 close to the lens 2, and a first magnetic unit 41 is arranged on the sliding block 4. The driving unit 6 is transmission-connected with the sliding block 4, and the driving unit 6 is configured to be able to drive the sliding block 4 to reciprocate along an extension direction of the lens 2. A wiper assembly 5 is provided on the mirror side of the lens 2, and a second magnetic unit 51 is provided on the wiper assembly 5, and the second magnetic unit 51 and the first magnetic unit 41 attract each other so that the wiper assembly 5 is attached to the mirror surface of the lens 2. When water mist or water droplets appear on the lens, the sliding block 4 is driven to slide back and forth by the driving unit 6, and the first magnetic unit 41 attracts the second magnetic unit 51 to drive the wiper assembly 5 to move, and the wiper assembly 5 scrapes off the water droplets on the mirror surface. The sliding block 4 and the driving unit 6 are both arranged on the lens bracket 3 on the back of the lens 2. When defogging, the sliding block 4 and the driving unit 6 will not block the mirror surface, which is convenient for the driver to observe the rearview mirror and improves driving safety during defog. The wiper assembly 5 is attached to the lens 2 by magnetic attraction, which is convenient for disassembly and replacement.

[0036] See also Figure 1 , Figure 5 and Figure 6In one embodiment, at least one end of the lens 2 is gradually narrowed, and the sliding block 4 is reciprocated along the direction of the line connecting the two sides of the lens 2. The sliding block 4 is arranged in the corresponding wider area of ​​the lens 2. A support arm 42 and an elastic retaining member 43 are arranged on the sliding block 4. One end of the support arm 42 is rotatably arranged on the sliding block 4, and the other end of the support arm 42 extends to the corresponding narrowed end of the lens 2. A third magnetic unit 421 is arranged on the support arm 42. The two ends of the elastic retaining member 43 are respectively connected to the sliding block 4 and the support arm 42. The elastic retaining member 43 provides elastic force to maintain the angle of rotation of the support arm 42 relative to the sliding block 4. A limiter 32 is arranged on the lens bracket 3. The limiter 32 corresponds to the shape of the lens 2 and the support arm 42, so that the support arm 42 is limited in the area corresponding to the lens 2. The wiper assembly 5 is arranged in a plurality of sections that can rotate relatively corresponding to the sliding block 4 and the support arm 42. A fourth magnetic unit 52 is also provided on a section of the wiper assembly 5 corresponding to the support arm 42, and the fourth magnetic unit 52 and the third magnetic unit 421 are arranged to attract each other. Specifically, the direction of the reciprocating motion of the sliding block 4 is up and down reciprocating motion. It can be understood that the rearview mirror is arranged vertically on the mirror surface of the car, and in order to scrape off water mist or water droplets, the sliding block 4 drives the wiper assembly 5 to reciprocate up and down through the magnetic attraction force to better remove water.

[0037] Please also read Figure 3 and Figure 4 In one embodiment, the elastic retainer 43 is arranged to correspond to the shape of one side edge of the lens 2, and the stopper 32 is arranged to correspond to the other side edge of the lens 2. When the sliding block 4 reciprocates, the elastic retainer 43 and the stopper 32 respectively make the support arm 42 close to the corresponding side edge of the lens 2 and be in the area of ​​the lens 2. The elastic retainer 43 is arranged to correspond to one side edge of the lens 2, so that when the sliding block 4 is at the corresponding side of the lens 2, the corresponding section of the wiper assembly 5 can be as close to the edge of the lens 2 as possible, ensuring the wiping effect and reducing the impact on the observation mirror surface, thereby adapting to the width change of different ends of the lens 2. When the sliding block 4 moves to the other side of the lens 2, the stopper 32 abuts against the support arm 42, so that the support arm 42 overcomes the elastic force of the elastic retainer 43 and rotates relative to the sliding block 4, and the corresponding section of the wiper assembly 5 rotates accordingly to adapt to the shape of the edge of the lens 2. The wiper assembly 5 can be in the form of a rubber strip or a rubber strip plus a metal or plastic frame. The wiper assembly 5 corresponding to the sliding block 4 and the support arm 42 is set to be relatively rotatable in multiple sections to adapt to the change in the width of the lens 2, and to prevent the sliding block 4 and the wiper assembly 5 from slipping out of the corresponding area of ​​the lens 2 during movement, so as to adapt to lenses 2 of different shapes, which is convenient for the design of the rearview mirror. In one embodiment, the lens bracket 3 has a sliding guide rail 31, and the sliding block 4 is slidably set on the sliding guide rail 31. In one embodiment, the elastic retainer 43 is a sheet-like or filament-like structure made of elastic material, and the two ends of the elastic retainer 43 are rotatably set on the corresponding sliding block 4 and the support arm 42.

[0038] In one embodiment, the first magnetic unit 41 and the second magnetic unit 51 are both composed of magnets. Specifically, the number of magnets in the first magnetic unit 41 and the second magnetic unit 51 are both multiple. The magnets of the first magnetic unit 41 and the magnets of the second magnetic unit 51 are arranged one-to-one correspondingly, and there are at least two magnets in the first magnetic unit 41 with opposite magnetic poles. When installing the wiper assembly 5, if the position of the wiper assembly 5 is incorrect, repulsive force or no magnetic attraction may be generated between the magnets of the first magnetic unit 41 and the second magnetic unit 51, thereby reminding the installation error and avoiding the wiper assembly 5 from being separated from the lens 2 or interfering with the housing 1 when moving due to the incorrect installation position of the wiper assembly 5.

[0039] In one embodiment, the third magnetic unit 421 is composed of at least one magnet, and the fourth magnetic unit 52 includes corresponding strip blocks made of ferromagnetic materials, and the strip blocks are arranged to extend along the axial direction of the support arm 42. Due to the existence of magnetic force and friction resistance, the relative rotation between the sections of the wiper assembly 5 and the relative rotation between the sliding block 4 and the support arm 42 may be slightly delayed. The fourth magnetic unit 52 uses a strip block made of ferromagnetic material, and the third magnetic unit 421 uses a magnet, which can avoid the misalignment between the magnet and the strip block due to the asynchronous rotation position, resulting in a reduction in magnetic force, and prevent the corresponding section of the wiper assembly 5 from being separated from the lens 2.

[0040] In one embodiment, the drive unit 6 includes a drive screw 61 and a rotary driver 62, the sliding block 4 is screwed and sleeved on the drive screw 61, and the rotary driver 62 is used to drive the drive screw 61 to rotate. It is understandable that the rotary driver 62 can drive the drive screw 61 by means of gear transmission or worm gear transmission, and the rotary driver 62 can control the forward and reverse rotation of the drive screw 61 by forward and reverse rotation, and drive the sliding block 4 to reciprocate. Preferably, the rotary driver 62 is a stepping motor. In one embodiment, the drive unit 6 includes a scissor-type telescopic mechanism, a double screw and a rotary driver, and the two ends of the double screw are respectively screwed and installed with a connection block of opposite rotation direction, and the two scissor arms at one end of the scissor-type telescopic mechanism are respectively connected to the sliding block 4, and the two scissor arms at one end of the scissor-type telescopic mechanism are respectively connected to the two connection blocks, and the rotary driver is used to drive the double screw to rotate. It is understandable that the scissor-type telescopic mechanism or the drive screw 61 can drive the sliding block 4 to move through a smaller structure so as to be placed in the rearview mirror space.

[0041] On the other hand, the invention also provides a car, including an anti-water accumulation rearview mirror as in any of the above embodiments. When water mist or water droplets are generated on the mirror surface of the anti-water accumulation rearview mirror, the driving unit 6 can drive the sliding block 4 to slide back and forth, and the first magnetic unit 41 attracts the second magnetic unit 51 to drive the wiper assembly 5 to move, and the wiper assembly 5 scrapes off the water droplets on the mirror surface. The sliding block 4 and the driving unit 6 are both arranged on the lens bracket 3 on the back of the lens 2. When defogging, the sliding block 4 and the driving unit 6 will not block the mirror surface, which is convenient for the driver to observe the rearview mirror and improves driving safety during defog.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A water-proof rearview mirror, comprising a housing, a lens and a lens holder, characterized in that: The lens holder is arranged in the shell, and the lens is arranged on the lens holder; a sliding block and a driving unit are also provided on the lens holder, the sliding block is slidably arranged on the back of the lens close to the lens, and a first magnetic unit is provided on the sliding block; the driving unit is transmission-connected with the sliding block, and the driving unit is configured to be able to drive the sliding block to reciprocate along an extension direction of the lens; a wiper assembly is provided on the mirror side of the lens, and a second magnetic unit is provided on the wiper assembly, and the second magnetic unit and the first magnetic unit attract each other so that the wiper assembly is attached to the mirror surface of the lens.

2. The anti-water accumulation rearview mirror according to claim 1, characterized in that: At least one end of the lens is gradually narrowed, the sliding block is reciprocated along the direction of the line connecting the two sides of the lens, and the sliding block is arranged in a corresponding wider area of ​​the lens; The sliding block is provided with a support arm and an elastic retaining member, one end of the support arm is rotatably provided on the sliding block, the other end of the support arm extends to the corresponding narrowed end of the lens, a third magnetic unit is provided on the support arm, the two ends of the elastic retaining member are respectively connected to the sliding block and the support arm, the elastic retaining member provides elastic force to maintain the angle of rotation of the support arm relative to the sliding block, and a limiting member is provided on the lens bracket, the limiting member is provided corresponding to the shape of the lens and the support arm, so that the support arm is limited in the area corresponding to the lens; The wiper assembly is configured to have multiple sections that can rotate relatively to each other corresponding to the sliding block and the support arm. A fourth magnetic unit is also provided on a section of the wiper assembly corresponding to the support arm. The fourth magnetic unit and the third magnetic unit are configured to attract each other.

3. The anti-water accumulation rearview mirror according to claim 2, characterized in that: The elastic retaining member is a sheet-like or filament-like structure made of elastic material, and two ends of the elastic retaining member are rotatably arranged on the corresponding sliding block and the supporting arm.

4. The anti-water accumulation rearview mirror according to claim 2 or 3, characterized in that: The elastic retaining member is set to correspond to the shape of one side edge of the lens, and the limiting member is set to correspond to the other side edge of the lens. When the sliding block reciprocates, the elastic retaining member and the corresponding limiting member respectively make the support arm close to the corresponding side edge of the lens and within the lens area.

5. The anti-water accumulation rearview mirror according to any one of claims 1 to 3, characterized in that: The reciprocating motion direction of the sliding block is up and down reciprocating motion.

6. The anti-water accumulation rearview mirror according to any one of claims 1 to 3, characterized in that: The first magnetic attraction unit and the second magnetic attraction unit are both composed of magnets.

7. The anti-water accumulation rearview mirror according to claim 6, characterized in that: The first magnetic unit and the second magnetic unit both have a plurality of magnets, the magnets of the first magnetic unit and the magnets of the second magnetic unit are arranged in one-to-one correspondence, and the first magnetic unit has at least two magnets with opposite magnetic poles.

8. The anti-water accumulation rearview mirror according to claim 6, characterized in that: The third magnetic attraction unit is composed of at least one magnet, and the fourth magnetic attraction unit includes corresponding strip blocks made of ferromagnetic materials, and the strip blocks are extended along the axial direction of the support arm.

9. The anti-water accumulation rearview mirror according to claim 1, characterized in that: The lens bracket has a sliding guide rail, the sliding block is slidably arranged on the sliding guide rail, the driving unit includes a driving screw and a rotation driver, the sliding block is threadedly sleeved on the driving screw, and the rotation driver is used to drive the driving screw to rotate.

10. An automobile, characterized in that: Comprising the anti-water accumulation rearview mirror as described in any one of claims 1-7.

Images