WO2006037261A1

WO2006037261A1 - An automatic antiglare rear view mirror for a vehicle

Info

Publication number: WO2006037261A1
Application number: PCT/CN2005/001100
Authority: WO
Inventors: Weide Wang
Original assignee: Weide Wang
Priority date: 2004-10-10
Filing date: 2005-07-22
Publication date: 2006-04-13
Also published as: CN2732552Y

Abstract

An automatic antiglare rear view mirror for a vehicle includes a mirror (24), a forward facing photoelectric cell (1), a backward facing photoelectric cell (2), a center control unit A, a drive circuit B and a drive unit C, wherein the output terminals of the forward facing photoelectric cell (1) and the backward facing photoelectric cell (2) connect to the input terminal of the center control unit A, the output terminal of the center control unit A connect to the input terminal of the drive circuit B, the signal from the drive circuit B drive the mirror (24) to move by the drive unit C, and the center unit A is a monolithic processor (3) or a series of comparators (8).

Description

Auto automatic anti-glare rearview mirror

The utility model relates to an automatic anti-glare rearview mirror used in an automobile, which belongs to the transformation technology of an automobile anti-glare rearview mirror.

Background technique

Existing automotive automatic anti-glare rearview mirrors, mostly liquid crystal type and chemically filled anti-glare rearview mirrors, liquid crystal type and chemically filled anti-glare rearview mirrors have the disadvantages of relatively complicated design, high production environment requirements, and production efficiency. Low, high price, and even increase the production cost of the car, which increases the user's burden of use. In addition, chemical toxic substances are generated during the production process. Because it pollutes the surrounding environment and does not meet the requirements of environmental protection, it is subject to many restrictions. .

Summary of the invention

The object of the present invention is to provide an automobile automatic anti-glare rearview mirror which is cleverly designed, simple in structure, safe and reliable, and easy to maintain, in consideration of the above problems. The utility model is easy to manufacture, cheap, and does not pollute the surrounding environment and meets the requirements of environmental protection.

The schematic structure of the utility model is shown in Fig. 1. It includes a rear view mirror (24), a photosensitive device (1) toward the front of the vehicle, a photosensitive device (2) toward the rear of the vehicle, a central control unit A, a drive circuit B, and The driving device C, wherein the photosensitive device (1) toward the front direction and the output end of the photosensitive device (2) toward the rear of the vehicle are connected to the input end of the central control unit (3), and the output and driving of the central control unit (3) The input of the circuit B is connected, and the output signal of the drive circuit B drives the mirror (24) to move by the drive unit C.

The above central control unit A is a single chip (3) or a comparator group (8).

The driving device C includes a motor (5) and a mechanical transmission mechanism (6). The driving circuit B is a motor driving circuit (4). The input end of the motor driving circuit (4) is connected to the output end of the central control unit A, and the motor is driven. The output signal of the circuit (4) drives the motor (5) to move, and the motor (5) passes the mechanical transmission.

Confirmation The moving mechanism (6) drives the rear view mirror (24) to move.

The above motor (.5) is a DC motor or a servo motor.

The mechanical transmission mechanism (6) is further provided with a position sensor (7), and the output end of the position sensor (7) is connected to the central control unit A.

The mechanical transmission mechanism (6) is a rack and pinion mechanism, the rotation shaft of the gear (61) is connected to the output shaft of the motor (5), the rack (62) is meshed with the gear (61), and the linear movement of the rack (62) Drive the mirror (24) around its pivot point; or the mechanical transmission (6) is the slip clutch (9); or the mechanical transmission (6) is the screw drive mechanism, the screw (63) shaft and the motor (5) The output shaft is connected, the nut (64) and the screw (63) form a screw drive pair, and the linear movement of the nut (64) drives the rear view mirror (24) to move around its fulcrum; or the mechanical transmission mechanism (6) is an eccentric mechanism, eccentric The rotation shaft of the wheel (65) is connected to the output shaft of the motor (5), one end of the connecting rod (66) is connected to the eccentric wheel (65), and the other end of the connecting rod (66) is connected with the push rod (67), the push rod The linear movement of (67) drives the mirror (24) to move around its pivot point.

The driving device C is an electromagnetic coil (11), the driving circuit B is an amplifier or a relay (10), the input end of the amplifier or the relay (10) is connected to the output end of the central control unit A, and the output signal of the amplifier or the relay (10) Connected to the electromagnetic coil (11), the rear view mirror (24) is provided with a magnetic conductive member (68), and the electromagnetic coil (1.1) drives the rear view mirror (24) around its fulcrum by energizing the attracting magnetic conductive member (68) .

The rear view mirror (24) can be a magnifying mirror, or a piece of ordinary transparent penetrating plastic sheet or glass sheet plus a reflective lens. Ordinary transparent penetrating plastic sheet or glass sheet is placed on the reflective lens, and the ordinary transparent penetrating plastic The sheet or the glass piece is opposite to the rear direction, and the reflective lens is behind, the two lenses may be a flat lens or a curved lens; the two lenses may be formed into a monolithic structure or a component structure, and the split structure is generally transparent. The lens and the reflective lens are combined into a diamond structure; the rear view mirror (24) can be provided with a non-reflective coating window (23), and the non-reflective coating window (23) is provided with a display (21). . The above single chip (3) can be a multi-function multi-source single-chip microcomputer (12), the motor drive circuit (4) is an H-type motor drive circuit (14), and the input end of the multi-function multi-source single-chip microcomputer (12) can also be respectively associated with the electronic锣 (13), temperature sensor (16), automatic headlight sensor (17), rain sensor (18), wheel pressure / wheel temperature sensor (19), automatic anti-glare sensor (20) connection, multi-function The output of the multi-source microcontroller (12) is electrically connected to the display (21).

The input end of the multi-function multi-source single-chip microcomputer (12) is also connected with an input button (22) for inputting predetermined parameters and a reversing radar (15) connected with a convenient reversing.

The utility model adopts the mechanical plus electronic structure, the design is very simple and practical, safe and reliable, easy to maintain, and low in cost and easy to produce. The utility model utilizes the original manual anti-glare rearview mirror of the automobile, plus the electronic After the automatic control system, it becomes an automatic anti-glare rearview mirror. The utility model is used in a car, and can play a role at night or in the darkness of the sky, so that the driver does not affect the driving safety due to the glare-headlights of the following vehicle, and the driver does not need to manually adjust the rearview mirror to avoid glare. The mirror will be fully automatic for the driver. When the mirror is illuminated by the glare of the following vehicle, the mirror will automatically move up or down a certain angle, thus avoiding the dazzling light due to the angle shift. However, the afterimage of the car can be seen, which greatly improves driving safety. The anti-glare rearview mirror of the utility model is very suitable, the design is simple, the production environment has no chemical toxicity, no pollution, high production efficiency, low price is a clever design, excellent performance, and convenient and practical automobile automatic anti-glare glass.

DRAWINGS

Figure 1 is a schematic view of Embodiment 1 of the present invention;

Figure 2 is a schematic diagram of Embodiment 2 of the present invention;

Figure 3 is a schematic diagram of Embodiment 3 of the present invention;

Figure 4 is a schematic diagram of Embodiment 4 of the present invention;

Figure 5 is a schematic diagram of Embodiment 5 of the present invention;

Figure 6 is a schematic diagram of Embodiment 6 of the present invention; Figure Ί is a schematic diagram of the driving device C used in the first embodiment of the present invention;

Figure 8 is a schematic structural view of Figure 7;

Figure 9 is a schematic structural view of Embodiment 2 of the present invention;

Figure 10 is a schematic structural view of Embodiment 4 of the present invention;

Figure 11 is a schematic structural view of Embodiments 5 and 6 of the present invention;

Figure 12 is a side view of the rear view mirror (24) of the present invention;

Figure 13 is a front elevational view of the rear view mirror (24) of the present invention;

Figure 14 is a wiring diagram of the multi-function multi-source single-chip microcomputer (12) and peripheral components of the present invention.

detailed description

Example 1:

The schematic diagram of the utility model is as shown in FIG. 1 , and includes a rear view mirror 24 , a photosensitive device facing the front direction, a photosensitive device 2 in the rear direction, a central control unit Α, a driving circuit Β and a driving device C thereof, wherein The front direction photosensitive device 1 and the output end of the photosensitive device 2 in the rear direction are connected to the input end of the central control unit 3, the output end of the central control unit 3 is connected to the input end of the drive circuit B, and the output signal of the drive circuit B is driven. Device C drives rear view mirror 24 to move. The photosensitive member 1 toward the front end and the photosensitive member 2 toward the rear end may be a photoresistor, a photodiode or the like. 'The above central control unit is the microcontroller 3 or the comparator group 8. In this embodiment, the central control unit A is a single-chip microcomputer 3, and the single-chip microcomputer 3 is a multi-function multi-source single-chip microcomputer 12, and the motor drive circuit 4 is an H-type motor drive circuit 14.

The driving device C includes a motor 5 and a mechanical transmission mechanism 6. The driving circuit B is a motor driving circuit 4. The input end of the motor driving circuit 4 is connected to the output end of the central control unit A, and the output signal of the motor driving circuit 4 drives the motor 5. Movement, the motor 5 drives the mirror 24 to move by the mechanical transmission mechanism 6. The motor 5 is a DC motor or a servo motor. In the present embodiment, the motor 5 is a direct current motor. In order to achieve precise control, the above-mentioned mechanical transmission 6 is also provided with a position sensor 7, and the output of the position sensor 7 is connected to the central control unit A.

In the present embodiment, the structural schematic diagram of the mechanical transmission mechanism 6 is shown as an eccentric mechanism. The rotation shaft of the eccentric 65 is connected to the output shaft of the motor 5, and one end of the connecting rod 66 is connected to the eccentric 65. The other end of the link 66' is coupled to the push rod 67, and linear movement of the push rod 67 drives the mirror 24 to move about its fulcrum.

In order to visually display the rotation angle of the rear view mirror 24 and display other parameters, the rear view mirror 24 may be a magnifying mirror, or a piece of ordinary transparent penetrating plastic sheet or glass sheet plus a reflective lens, and generally transparently penetrates. The plastic sheet or the glass piece is placed on the reflective lens, the ordinary transparent penetrating plastic piece or the glass piece is opposite to the rear direction, and the reflective lens is behind, the two lenses can be flat lenses or curved lenses; the two lenses can be made into a unitary type The structure can also be used as a component structure. The split structure is a combination of a common transparent lens and a reflective lens into a diamond structure; the angle between the ordinary transparent penetrating plastic sheet or the glass sheet and the reflective lens is adjustable from 0 ° to 30 °. The above-mentioned ordinary transparent penetrating plastic sheet or glass piece may be a flat mirror or an arc mirror, and the reflective lens may also be a flat mirror or an arc mirror. Further, the rear view mirror 24 may be provided with a non-reflective coating window 23, and the non-reflective coating window 23 is provided with a display 21. The display 21 may be a monochrome or multi-color liquid crystal display STN-LCD or TFT-LCD, a monochrome or multi-color 0 LED, a monochrome or multi-color LED, a monochrome or multi-color electric discharge display, and the like. The display 21 can be placed at any position of the rear view mirror 24. When the position of the display 21 is determined, the reflective coating corresponding to the position of the lens can be exposed to the position by a laser, a coating process, or the like, as in the lens. A non-reflective coating window 23 is opened, and the non-reflective coating window 23 can be of any size, for example, from 100 square millimeters to 10,000 square millimeters, and the shape can be a circular or polygonal geometry.

In order to make the function of the utility model more convenient and more convenient for the user, the input end of the multi-function multi-source single-chip microcomputer 12 can also be respectively connected with the electronic disk 13, the temperature sensor 16, the automatic headlight photoreceptor 17, the raindrop sensor 18, The wheel pressure/wheel temperature sensor 19 and the automatic anti-glare photoreceptor 20 are connected, and the output of the multi-function multi-source single-chip microcomputer 12 is electrically connected to the display 21. The input end of the multi-function multi-source single-chip microcomputer 12 is further connected with an input button 22 for inputting a predetermined parameter and a reversing radar 15 connected with a convenient reversing. Most of the functions are concentrated The multi-function multi-source microcomputer 12 detects, calculates, controls the output and display, and the like.

When the utility model works, the photosensitive device 1 measures the darkness of the exterior of the vehicle to the front of the vehicle, and the automatic anti-glare function enters the ready state at night or when the sky is dark, and when the rearview mirror is illuminated by the headlight of the trailing vehicle, The device 2 measures the brightness. When the brightness reaches the default value, the automatic anti-glare function starts in real time, and the single-chip microcomputer 3 issues a command to the motor drive circuit 4 to drive the DC motor 5 to rotate. The rotation shaft of the eccentric 65 is connected with the output shaft of the motor 5, and the eccentric wheel 65 moves the push rod 67 through the connecting rod 66, and the linear movement of the push rod 67 drives the rear view mirror 24 to move around its fulcrum, and finally changes the up and down angle of the rear view mirror, and the angle can be moved up and down at 1 to 30 degrees, the position sensor 7 The amount of movement can be fed back to the single chip microcomputer 3 as a precise positioning number, and the position sensor 7 can be a contact point, a variable resistor, a Hall sensor, a light sensor, or the like. The pivot point of the rear view mirror can be above, in the middle or below, and the rotating part can be the glass mirror itself or the rear view mirror as a whole. ,

Example 2:

The schematic diagram of the present invention is shown in FIG. 2, and its structure is the same as that of Embodiment 1, except that the central control unit A is a comparator group 8, the mechanical transmission mechanism 6 is a rack and pinion mechanism, and the shaft and the motor of the gear 61 are The output shaft of 5 is coupled, the rack 62 is meshed with the gear 61, and the linear movement of the rack 62 drives the mirror 24 to move about its fulcrum, as shown in FIG.

Example 3:

The schematic diagram of the utility model is shown in FIG. 3, and its structure is the same as that of the first embodiment. The difference is that the mechanical transmission mechanism 6 is a slip clutch 9 and the slip clutch 9 is used, so that no digital feedback is required, and the mold timing is added. The upper and lower positioning points are sufficient, and the slip clutch 9 can be connected to the buffer device 9A that provides the movement action buffer.

Example 4:

The schematic diagram of the utility model is shown in FIG. 4, and its structure is the same as that of the third embodiment. The difference is that the central control unit A is the comparator group 8, the mechanical transmission mechanism 6 is the screw transmission mechanism, and the screw 63 is rotated. The shaft is coupled to the output shaft of the motor 5, the nut 64 and the screw 63 form a screw drive pair, and the linear movement of the nut 64 drives the mirror 24 to move about its fulcrum, as shown in FIG.

Example 5

The schematic diagram of the present invention is shown in FIG. 5, and its structure is the same as that of Embodiment 1, except that the above-mentioned driving device C is an electromagnetic coil 11, and the driving circuit B is an amplifier or a relay 10, and an input terminal of the amplifier or the relay 10 is The output of the central control unit A is connected, the output signal of the amplifier or relay 10 is connected to the electromagnetic coil 11, and the rear view mirror 24 is provided with a magnetic conductive member 68. The electromagnetic coil 11 drives the rear view mirror 24 by energizing the attracting and guiding member 68. Move around its pivot point, as shown in Figure 11.

In this embodiment, an electromagnetic method is used to change the up and down movement angle of the rear view mirror. When the automatic anti-glare function is activated, the single chip microcomputer 3 issues a command to the amplifier or the relay 10, and then pushes the electromagnetic coil 11, and the suction and discharge action passes through the mechanical transmission 6 Converted to change the angle of the mirror, the pivot point of the mirror can be above, in the middle or below, etc. The rotating part can be the glass mirror itself or the whole mirror.

Example 6:

The schematic diagram of the present invention is shown in Fig. 6, and its structure is the same as that of the embodiment 5, except that the central control unit A is the comparator group 8.

Claims

1. An automobile automatic anti-glare rearview mirror, characterized by comprising a rearview mirror (24), a photosensitive device toward the front direction (1), a photosensitive device toward the rear of the vehicle (2), a central control unit A, a driving circuit B and its driving device C, wherein the output of the photosensitive device (1) toward the front direction and the photosensitive device (2) toward the rear of the vehicle are connected to the input of the central control unit (3), and the output of the central control unit (3) Connected to the input of the drive circuit B, the output signal of the drive circuit 驱动 drives the mirror (24) to move through the drive unit C.

The automotive automatic anti-glare rearview mirror according to claim 1, characterized in that said central control unit is a single-chip microcomputer (3) or a comparator group (8).

3. The automotive automatic anti-glare rearview mirror according to claim 1, wherein said driving device C comprises a motor (5), a mechanical transmission mechanism (6), and the driving circuit B is a motor driving circuit (4), a motor The input end of the driving circuit (4) is connected to the output end of the central control unit A, the output signal of the motor driving circuit (4) drives the motor (5) to move, and the motor (5) drives the rear view mirror through the mechanical transmission mechanism (6)

(24) Exercise.

The automotive automatic anti-glare rearview mirror according to claim 3, characterized in that the motor (5) is a direct current motor or a servo motor.

The automobile automatic anti-glare rearview mirror according to claim 4, characterized in that the mechanical transmission mechanism (6) is further provided with a position sensor (7), an output end of the position sensor (7) and a central control unit. A connection.

The automotive automatic anti-glare rearview mirror according to claim 4, characterized in that the mechanical transmission mechanism (6) is a rack and pinion mechanism, and the rotating shaft of the gear (61) is connected to the output shaft of the motor (5), the tooth The strip (62) meshes with the gear (61), and the linear movement of the rack (62) drives the mirror (24) to move around its fulcrum; or the mechanical transmission (6) is a slip clutch (9); or a mechanical transmission (6) For the screw drive mechanism, the shaft of the screw (63) is connected to the output shaft of the motor (5), the nut (64) and the screw (63) form a screw drive pair, and the linear movement of the nut (64) drives the mirror (24) around it Point motion; or mechanical transmission mechanism (6) is an eccentric mechanism, the rotation shaft of the eccentric (65) is connected with the output shaft of the motor (5), and one end of the connecting rod (66) is connected to the eccentric wheel (65), the connecting rod ( The other end of the 66) is connected to the push rod (67), and the linear movement of the push rod (67) drives the mirror (24) to move around its pivot point.

7. The automotive automatic anti-glare rearview mirror according to claim 1, wherein said driving device C is an electromagnetic coil (11), and the driving circuit B is an amplifier or a relay (10), an input of an amplifier or a relay (10). The end is connected to the output of the central control unit A, the output signal of the amplifier or relay (10) is connected to the electromagnetic coil (11), and the rear view mirror (24) is provided with a magnetic conductive member (68), and the electromagnetic coil (11) is passed. The energized pull-in magnet (68) drives the mirror (24) to move around its pivot point. ·

The automotive automatic anti-glare rearview mirror according to any one of claims 1 to 7, characterized in that the rearview mirror (24) can be a prism or a piece of ordinary transparent penetrating plastic sheet or glass sheet. With reflective lenses, ordinary transparent penetrating plastic sheets or glass sheets are placed on the reflective lenses. Ordinary transparent penetrating plastic sheets or glass sheets are opposite to the rear of the vehicle. The reflective lenses are behind, and the two lenses can be flat lenses or curved surfaces. Lens; the two lenses can be made into a monolithic structure, or can be a component structure, the split structure is a combination of a common transparent lens and a reflective lens into a diamond structure; the rear view mirror (24) can be opened with a non-reflective coating window (23) ), the display (21) is mounted on the non-reflective coating window (23).

9. The automotive automatic anti-glare rearview mirror according to claim 8, wherein said single-chip microcomputer (3) is a multi-function multi-source single-chip microcomputer (12), and the motor drive circuit (4) is an H-type motor drive circuit ( 14), the input end of the multi-function multi-source single-chip microcomputer (12) can also be respectively connected with the electronic disk (13), the temperature sensor (16), the automatic headlight photoreceptor (17), the raindrop sensor (18), the wheel pressure / The wheel temperature sensor (19) and the automatic anti-glare photoreceptor (20) are connected, and the S output of the multi-function multi-source single-chip microcomputer (12) is electrically connected to the display (21).

10. The automobile automatic anti-glare rearview mirror according to claim 9, wherein the input end of the multi-function multi-source single-chip microcomputer (12) is further connected with an input button (22) capable of inputting a predetermined parameter, and the connection is convenient. Reversing the reversing radar (15).