CN203666601U - Four-bar drive window-wiping device for automobile rearview mirror - Google Patents

Abstract

The utility model discloses a four-bar transmission wiper device for automobile rearview mirrors. The servo motor is fixed through a fixing plate, the servo motor drives a crank, the crank is connected with a connecting rod, the connecting rod is connected with a rocker, and one end of the rocker passes through the The fixed plate is fixed, and the other end is hinged with the slider in the guide rod. The two ends of the guide rod are connected with balls, and the balls are respectively located in two parallel guide rails. Connected with the rearview mirror lens, the wiper blade is located on the front of the rearview mirror lens, the guide rod and the wiper blade are connected through a fixed slot, and a heating plate is provided between the hard plastic plate and the rearview mirror lens. The utility model has the advantages of simple and flexible structure, convenient control, large rain covering area, low manufacturing cost of each component, and makes the driver's operation more handy for severe weather such as heavy rain and fog.

Description

Four-bar transmission wiper device for automobile rearview mirror

technical field

The utility model relates to the technical field of safe driving, in particular to a wiper device for an automobile rearview mirror.

Background technique

At present, the known technology is through the complex structure of worm gear and worm transmission, or a single wiper function, or the form of wiper is swinging or other forms of irregular movement, resulting in small wiper coverage area and poor effect, and the manufacturing cost of worm gear High, there are certain restrictions on technology promotion.

Contents of the invention

The utility model aims at the deficiencies of the prior art, and provides a four-bar transmission wiper device for automobile rearview mirrors with simple transmission structure, stable movement, large wiper coverage area, heating function, and low manufacturing cost of each component. .

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

The four-bar transmission wiper device used for automobile rearview mirror, the servo motor is fixed by the fixed plate, the servo motor drives the crank, the crank is connected with the connecting rod, the connecting rod is connected with the rocker, one end of the rocker is fixed by the fixed plate, and the other end is connected with the The sliders in the guide rod are hinged, and the two ends of the guide rod are connected with balls, and the balls are respectively located in two parallel guide rails. The guide rails are connected with the hard plastic plate, and the hard plastic plate is located on the back of the rearview mirror lens and connected with the rearview mirror lens. The wiper blade is located on the front of the rearview mirror lens, and the guide rod and the wiper blade are connected through a fixing slot.

In the above-mentioned four-bar transmission wiper device for automobile rearview mirror, a heating plate is provided between the hard plastic plate and the lens of the rearview mirror, and the heating plate is connected to the power supply through a protection circuit and a temperature sensor.

The working principle of the utility model: through the output torque of the servo motor with deceleration, the crank of the crank rocker mechanism is driven to make a rotary motion, and the rocker is controlled by each other to make the rocker swing according to a certain arc track, and the end of the rocker and the guide rod The inner slider is hinged so that when the rocker swings, the slider can be driven to move in the guide rod, while the guide rod and the wiper blade are fixed by fixing slots and screws, and the guide rod can move freely in the rearview mirror guide rail. When the motor rotates When the temperature reaches the preset temperature, the wiper blade can be reciprocated through the transmission device; a heating plate is embedded in the lens with a protection circuit and a temperature sensor. When the temperature reaches the preset temperature, the power supply is automatically disconnected, which can heat the fog and frost on the lens. Melted, in order to play a better role in wiping the rain.

Beneficial effects of the utility model: the utility model has a simple and flexible structure and is convenient to control, and can overcome some disadvantages of the existing rearview mirror wiper, such as the complicated transmission structure, the high cost of the worm gear and the single wiper function, and can play a role in wiper coverage. Large size, low manufacturing cost of each component, and with heating, defogging and defrosting functions, which can make the rain wiping effect more obvious, and also have a good response to severe weather such as heavy rain and fog, making the driver's operation more handy. the

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a side view of the utility model.

Fig. 3 is a schematic structural view of the front of the utility model rearview mirror.

Fig. 4 is a circuit structure diagram of the heating sheet of the present invention.

Detailed ways

As shown in Figure 1 and Figure 2, the four-bar transmission wiper device used for automobile rearview mirrors, the servo motor 2 is fixed by the fixing plate 5, the servo motor 2 drives the crank 3, the crank 3 is connected with the connecting rod 4, and the connecting rod 4 Connected with the rocker 10, one end of the rocker 10 is fixed by the fixed plate 5, and the other end is hinged with the slider 11 in the guide rod 9, and the two ends of the guide rod 9 are connected with the balls 7, and the balls 7 are respectively located in the two parallel guide rails 14 , the guide rail 14 is connected with the hard plastic plate 13 through the fixed pin 8, the hard plastic plate 13 is located at the back of the rearview mirror lens 1 and is connected with the rearview mirror lens 1, the wiper blade 15 is located at the front of the rearview mirror lens 1, and the guide rod 9 It is connected with the wiper blade 15 through a fixing slot 6 and screws, and the fixing slot 6 is a concave iron slot. the

The above-mentioned four-bar transmission wiper device for automobile rearview mirror is characterized in that: a heating sheet 12 is provided between the hard plastic plate 13 and the rearview mirror lens 1, and the heating sheet 12 is connected to the power supply through a protection circuit and a temperature sensor.         

As shown in Figure 1-3, when the wiper device is working, close the power switch, start the servo motor 2, output torque through the servo motor with deceleration, and drive the crank 3 of the crank rocker mechanism to make a rotary motion, through the crank 3, connecting rod 4 and the rocker 10 restrict each other, so that the rocker 10 swings according to a certain arc track. When the rocker 10 swings, it can drive the slider 11 to move in the guide rod 9, and the guide rod 9 passes through due to the force component of the slider 11. The ball 7 reciprocates in the guide rail 14, and when the guide rod 9 reciprocates in the guide rail 14, it can drive the wiper blade 15 to reciprocate, so that the dew and accumulated rain on the rearview mirror lens 1 can be effectively scraped off. In this way, the continuous rotary motion of the motor is converted into the reciprocating motion of the wiper blade 15 .

A heating sheet 12 is inlaid between the hard plastic plate 13 and the rearview mirror lens 1, and the heating sheet 12 is connected with a protection circuit and a temperature sensor. The sight glass lens 1 transfers heat to atomize the water mist or melt the frost, and then wipe it off with the wiper device; when the temperature reaches the preset temperature, the protection circuit will automatically disconnect the power supply to protect the lens from damage caused by overheating. some bad situations.

Claims (2)

1. The four-bar drive rain wiper device for automobile rearview mirror is characterized in that: the servo motor (2) is fixed by the fixing plate (5), the servo motor (2) drives the crank (3), and the crank (3) is connected to the The rod (4) is connected, the connecting rod (4) is connected with the rocker (10), one end of the rocker (10) is fixed by the fixing plate (5), and the other end is hinged with the slider (11) in the guide rod (9) , the two ends of the guide rod (9) are connected to the balls (7), the balls (7) are respectively located in two parallel guide rails (14), the guide rails (14) are connected with the hard plastic plate (13), and the hard plastic plate (13) is located The back of the rearview mirror lens (1) is connected to the rearview mirror lens (1), the wiper blade (15) is located on the front side of the rearview mirror lens (1), and the guide rod (9) and the wiper blade (15) are fixed by The card slot (6) is connected. 2. The four-bar transmission wiper device for automobile rearview mirrors according to claim 1, characterized in that: a heating sheet (12) is provided between the hard plastic plate (13) and the rearview mirror lens (1), The heating sheet (12) is connected to the power supply through a protection circuit and a temperature sensor.

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