Automobile electric rearview mirror driving structure

Abstract

The utility model relates to the field of automobile electric rearview mirror driving, and discloses an automobile electric rearview mirror driving structure which comprises a mirror frame and a mirror base, a mirror piece is arranged on one side of the mirror frame, two fixing blocks are fixedly connected to the inner side of the mirror frame respectively, the two fixing blocks are symmetrically distributed, and a limiting table is fixedly connected between the two fixing blocks jointly. A limiting table is fixedly connected to one side of the push block, a hemispherical limiting sleeve is fixedly connected to one side of the limiting table, a limiting ball is movably connected to the inner side of the hemispherical limiting sleeve, a connecting rod is fixedly connected to one side of the limiting ball, and a lens is fixedly connected to one end of the connecting rod. The angle of the lens can be adjusted from the upper and lower points of the lens, so that the whole lens keeps excellent structural stability.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rearview mirror driving, in particular to an automobile electric rearview mirror driving structure. Background Art

[0002] Principle of electric rearview mirror: There are two micro motors installed in the rearview mirror. The control button installed on the dashboard can make the motor drive the rearview mirror to swing up, down, left and right. The structure of the electric rearview mirror: It is mainly centered on the pivot and consists of two independent micro motors that enable the rearview mirror to flexibly change its position up and down and left and right. The rearview mirror is controlled by a switch and can move in multiple directions. It can make one micro motor work or two work at the same time. Now in mid-to-high-end cars, the rearview mirrors can basically be folded. There are two types of folding functions: one is manual. When folding is required, the driver must stretch his hand out of the window or get off the car to fold it. This kind of folding rearview mirror is rare now. The other is electric, which is also a more common one. Its advantage is that the driver can fold it in the car, and the rearview mirror will automatically open when the vehicle is started.

[0003] However, to facilitate the description of the driving principle of the existing rearview mirror, we summarize the upward and downward swing of the lens as the rotation of the lens in the vertical plane dimension, and the left and right swing of the lens as the rotation in the horizontal plane dimension. To achieve these two design purposes, two micro motors are placed in the frame, and each micro motor is set from one side of the lens. Note that this is a single-sided placement in one dimension, that is, the motor is set at a position deviating from the center of the lens. For example, when the micro motor in the vertical plane dimension rotates, the output end of the motor is connected to the threaded rod to push the threaded sleeve to push the lens forward, thereby achieving the effect of driving the rotation. However, in actual scenarios, the drive of the lens has the following technical problems:

[0004] 1. The motor is set on one side, resulting in the force applied to the lens on only one side to push the lens to rotate. This may lead to insufficient balance of the lens and unstable structure. In the case of long-term, high-speed movement and bumps in the car, the lens may become loose.

[0005] 2. Due to the asymmetric distribution of support points behind the lens, the lens's shear resistance has inherent defects. If special circumstances occur, the rearview mirror's lens may be more likely to break. Utility Model Content

[0006] In order to solve the technical problem of driving a rearview mirror of an automobile, the utility model provides a driving structure of an electric rearview mirror of an automobile.

[0007] The utility model is implemented by the following technical scheme: an automobile electric rearview mirror driving structure comprises a mirror frame and a mirror seat, a mirror frame is provided with a lens on one side, two fixed blocks are respectively fixedly connected to the inner side of the mirror frame, the two fixed blocks are symmetrically distributed, a limiting platform is commonly fixedly connected between the two fixed blocks, a hemispherical limiting sleeve is fixedly connected to one side of the limiting platform, a limiting ball is movably connected to the inner side of the hemispherical limiting sleeve, a connecting rod is fixedly connected to one side of the limiting ball, one end of the connecting rod is fixedly connected to the lens, an up-and-down adjusting mechanism for rotating the lens in a vertical direction is provided on the inner side of the limiting platform, and a left-and-right adjusting mechanism for rotating the lens in a horizontal direction is provided on the lower side of the mirror frame.

[0008] As a further improvement of the above scheme, the up and down adjustment mechanism includes a slide groove opened inside the limit platform, and the inner sides of the two ends of the slide groove are respectively slidably connected with auxiliary wedge-shaped push blocks, and one end of the two auxiliary wedge-shaped push blocks is provided with a lens connection mechanism that maintains linkage with the lens, and one side of the limit platform is provided with a push block driving mechanism that pushes the two auxiliary wedge-shaped push blocks simultaneously.

[0009] As a further improvement of the above solution, the lens connecting mechanism includes connecting bolts rotatably connected to one end of the two auxiliary wedge-shaped push blocks, and one side of the two connecting bolts is fixedly connected to one side of the lens.

[0010] As a further improvement of the above scheme, the push block driving mechanism includes a main wedge-shaped push block that abuts against one end of the same side of the two auxiliary wedge-shaped push blocks at the same time, a limiting groove is provided on one side of the limit platform, and a push plate fixedly connected to one side of the main wedge-shaped push block is slidably connected to the inner side of the limiting groove, and a wedge-shaped linkage mechanism is provided at one end of the push plate for making the main wedge-shaped push block slide back and forth up and down along the inner side of the limit platform.

[0011] As a further improvement of the above scheme, the wedge-shaped linkage mechanism includes a No. 2 micro motor fixedly connected to one side of the limit platform, the output end of the No. 2 micro motor is fixedly connected to a gear, and the gear is meshed with a rack fixedly connected to one end of the push plate.

[0012] As a further improvement of the above scheme, the left and right adjustment mechanism includes a mirror arm fixedly connected to the lower side of the mirror frame, a No. 1 micro motor is fixedly connected inside the upper end of the mirror base, and the output end of the No. 1 micro motor is fixedly connected to the lower end of the mirror arm.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model cooperates with the upper and lower adjustment mechanisms and the limit ball. On the back side of the lens, there are two connecting bolts to maintain connection and contact when the lens rotates. When the main wedge-shaped push block is pushed, the auxiliary wedge-shaped push blocks on both sides move forward and backward respectively, while maintaining abutment against the lens, maintaining the balance of the lens in the frame, and enhancing the overall stability of the internal structure of the frame. In actual use scenarios of long-term, high-speed and large-scale bumps in the car, the lens can still maintain excellent operability.

[0015] 2. The utility model supports the back of the lens through the upper and lower auxiliary wedge-shaped push blocks. Compared with the technical solution of supporting and adjusting the lens on one side, the lens of the utility model has stronger shear resistance in the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a vehicle electric rearview mirror driving structure provided by the utility model;

[0017] Figure 2 for Figure 1 The first exploded image of

[0018] Figure 3 for Figure 1 Side view of

[0019] Figure 4 for Figure 1 Second exploded view.

[0020] Description of main symbols:

[0021] 1. Mirror base; 2. No. 1 micro motor; 3. Mirror arm; 4. Mirror frame; 5. Lens; 6. Limiting groove; 7. No. 2 micro motor; 8. Gear; 9. Rack; 10. Fixed block; 11. Limiting platform; 12. Connecting rod; 13. Hemispherical limiting sleeve; 14. Connecting bolt; 15. Push plate; 16. Slide groove; 17. Secondary wedge-shaped push block; 18. Main wedge-shaped push block; 19. Limiting ball. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0023] Example:

[0024] Please combine Figure 1-Figure 4The present embodiment is a driving structure of an electric rearview mirror for an automobile, comprising a mirror frame 4 and a mirror seat 1. A lens 5 is arranged on one side of the mirror frame 4. Two fixing blocks 10 are fixedly connected to the inner side of the mirror frame 4 respectively. The two fixing blocks 10 are symmetrically distributed. A limiting platform 11 is fixedly connected between the two fixing blocks 10. A hemispherical limiting sleeve 13 is fixedly connected to one side of the limiting platform 11. The inner side of the hemispherical limiting sleeve 13 is hollowed out and can hold a limiting ball 19. The inner side of the hemispherical limiting sleeve 13 is movably connected to the limiting ball 19. A connecting rod 12 is fixedly connected to one side of the limiting ball 19. One end of the connecting rod 12 is fixedly connected to the lens 5. An up-and-down adjustment mechanism for rotating the lens 5 in the vertical direction is arranged on the inner side of the limiting platform 11. A left-and-right adjustment mechanism for rotating the lens 5 in the horizontal direction is arranged on the lower side of the mirror frame 4.

[0025] Please combine Figure 2 and Figure 4 As shown, the up and down adjustment mechanism includes a slide groove 16 opened inside the limit platform 11, and the inner sides of the two ends of the slide groove 16 are respectively slidably connected with auxiliary wedge-shaped push blocks 17. It should be noted that one end of the two auxiliary wedge-shaped push blocks 17 are both 45-degree wedge-shaped incision structures, and one end of the two auxiliary wedge-shaped push blocks 17 is provided with a lens connecting mechanism that maintains linkage with the lens 5, and one side of the limit platform 11 is provided with a push block driving mechanism that pushes the two auxiliary wedge-shaped push blocks 17 simultaneously.

[0026] Please combine Figure 3 and Figure 4 As shown, the lens connecting mechanism includes a connecting bolt 14 which is rotatably connected to one end of two auxiliary wedge-shaped push blocks 17 respectively, one side of the two connecting bolts 14 is fixedly connected to one side of the lens 5 respectively, and a fixing rod is arranged in the middle of the connecting bolt 14. The fixing rod passes through one end of the auxiliary wedge-shaped push block 17 and is rotatably connected to one end of the auxiliary wedge-shaped push block 17, so as to adjust the angle adjustment relationship between the auxiliary wedge-shaped push block 17 and the lens 5 when the lens 5 rotates.

[0027] Please combine Figure 4 As shown, the push block driving mechanism includes a main wedge-shaped push block 18 that abuts against one end of the same side of two auxiliary wedge-shaped push blocks 17. A limiting groove 6 is provided on one side of the limit platform 11. A push plate 15 fixedly connected to one side of the main wedge-shaped push block 18 is slidably connected to the inner side of the limiting groove 6. A wedge-shaped linkage mechanism is provided at one end of the push plate 15 to enable the main wedge-shaped push block 18 to slide back and forth up and down along the inner side of the limit platform 11.

[0028] Please combine Figure 4 As shown, the wedge-shaped linkage mechanism includes a No. 2 micro motor 7 fixedly connected to one side of the limit platform 11, and the output end of the No. 2 micro motor 7 is fixedly connected to a gear 8, and the gear 8 is meshed with a rack 9 fixedly connected to one end of the push plate 15.

[0029] Please combine Figure 1The left and right adjustment mechanism includes a mirror arm 3 fixedly connected to the lower side of the mirror frame 4, a No. 1 micro motor 2 is fixedly connected to the upper end of the mirror base 1, and the output end of the No. 1 micro motor 2 is fixedly connected to the lower end of the mirror arm 3.

[0030] The implementation principle of an automotive electric rearview mirror driving structure in the embodiment of the present application is as follows: the mirror base 1 is fastened to the vehicle body by bolts in the mirror base 1; when the No. 1 micro motor 2 is started on the upper side of the mirror base 1, the output end rotates, driving the mirror arm 3 to rotate; when the No. 2 micro motor 7 is driven, the output end drives the gear 8 to rotate, and pushes the push plate 15 to slide up and down along the limit groove 6 through the rack 9, thereby driving the main wedge-shaped push block 18 to push the auxiliary wedge-shaped push block 17 forward to one side, while the auxiliary wedge-shaped push block 17 on the other side is pushed backward along the slide groove 16 due to the rotation of the lens 5, and the limit ball 19 rotates in the hemispherical limit sleeve 13, thereby realizing the function of adjusting the direction of the lens 5 in the frame 4.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A vehicle electric rearview mirror driving structure, comprising a mirror frame (4) and a mirror seat (1), characterized in that: A lens (5) is arranged on one side of the frame (4); two fixing blocks (10) are fixedly connected to the inner side of the frame (4); the two fixing blocks (10) are symmetrically distributed; a limiting platform (11) is fixedly connected between the two fixing blocks (10); a hemispherical limiting sleeve (13) is fixedly connected to one side of the limiting platform (11); a limiting ball (19) is movably connected to the inner side of the hemispherical limiting sleeve (13); a connecting rod (12) is fixedly connected to one side of the limiting ball (19); one end of the connecting rod (12) is fixedly connected to the lens (5); an up-and-down adjustment mechanism for rotating the lens (5) in a vertical direction is arranged on the inner side of the limiting platform (11); and a left-and-right adjustment mechanism for rotating the lens (5) in a horizontal direction is arranged on the lower side of the frame (4).

2. The automotive electric rearview mirror driving structure according to claim 1, characterized in that: The up-and-down adjustment mechanism comprises a slide groove (16) provided inside the limit platform (11), and the inner sides of both ends of the slide groove (16) are respectively slidably connected with auxiliary wedge-shaped push blocks (17), one end of the two auxiliary wedge-shaped push blocks (17) is provided with a lens connection mechanism which is linked with the lens (5), and one side of the limit platform (11) is provided with a push block driving mechanism which pushes the two auxiliary wedge-shaped push blocks (17) simultaneously.

3. The automotive electric rearview mirror driving structure as claimed in claim 2, characterized in that: The lens connecting mechanism comprises a connecting bolt (14) which is rotatably connected to one end of two auxiliary wedge-shaped push blocks (17), and one side of the two connecting bolts (14) is fixedly connected to one side of the lens (5).

4. The automotive electric rearview mirror driving structure as claimed in claim 2, characterized in that: The push block driving mechanism comprises a main wedge-shaped push block (18) which is simultaneously abutted against one end of the same side of the two auxiliary wedge-shaped push blocks (17); a limiting groove (6) is provided on one side of the limiting platform (11); a push plate (15) which is fixedly connected to one side of the main wedge-shaped push block (18) is slidably connected to the inner side of the limiting groove (6); and a wedge-shaped linkage mechanism is provided at one end of the push plate (15) for enabling the main wedge-shaped push block (18) to slide back and forth up and down along the inner side of the limiting platform (11).

5. The automotive electric rearview mirror driving structure as claimed in claim 4, characterized in that: The wedge-shaped linkage mechanism comprises a second micro motor (7) fixedly connected to one side of the limit platform (11), the output end of the second micro motor (7) being fixedly connected to a gear (8), and the gear (8) being meshed with a rack (9) fixedly connected to one end of the push plate (15).

6. The automotive electric rearview mirror driving structure according to claim 1, characterized in that: The left-right adjustment mechanism comprises a mirror arm (3) fixedly connected to the lower side of the mirror frame (4); a first micro motor (2) is fixedly connected inside the upper end of the mirror base (1); and an output end of the first micro motor (2) is fixedly connected to the lower end of the mirror arm (3).

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