Electric lifting and returning front windscreen wiper

Abstract

The utility model relates to the technical field of automobile windscreen wipers, and discloses an electric lifting and returning front windscreen wiper which comprises a first wiping arm, a second wiping arm and a third wiping arm. The second wiping arm is rotatably connected with the first wiping arm through a rotating shaft fixedly arranged at one end of the second wiping arm; the lifting and separating returning mechanism comprises a motor and a controller, the motor is installed on the first wiping arm, a driving shaft of the motor is in transmission connection with the rotating shaft, and rotation of the driving shaft of the motor can drive the rotating shaft and the second wiping arm to rotate together; the controller can control the motor to rotate forwards and backwards; according to the electric lifting and returning front windscreen wiper, the second wiping arm of the front windscreen wiper can be controlled to move in the direction perpendicular to the front windscreen in a vehicle so as to respond to the request of a user for lifting the windscreen wiper away from the windscreen and returning the windscreen wiper to the position.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile wiper, more particularly to a front wiper of electric lifting and homing. BACKGROUND

[0002] With the rapid development of automobile electrical function, the functions of the automobile can be realized by the user's finger automation control. However, the traditional front wiper can only realize the electric motion on the parallel windshield curved surface, and when the wiper is lifted in the freezing rain, sleet and other weather, the second wiper arm of the wiper still needs to be manually lifted by the user, and the automation control in the cab cannot be realized. SUMMARY

[0003] The utility model aims at providing a front wiper of electric lifting and homing to solve the problems in the above background.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A front wiper of electric lifting and homing, comprising:

[0006] A first wiper arm 100;

[0007] A second wiper arm 200, which is rotatably connected to the first wiper arm 100 through a rotating shaft 210 fixedly arranged at one end of the second wiper arm 200;

[0008] A lifting and homing mechanism 300, which comprises a motor 310 and a controller, the motor 310 is installed on the first wiper arm 100, the driving shaft of the motor 310 is in transmission connection with the rotating shaft 210, and the rotation of the driving shaft of the motor 310 can drive the rotating shaft 210 and the second wiper arm 200 to rotate together; the controller can control the forward rotation and reverse rotation of the motor 310.

[0009] Further, the motor 310 is arranged perpendicularly to the rotating shaft 210, and the driving shaft of the motor 310 is in transmission connection with the rotating shaft 210 through a bevel gear set.

[0010] Further, the lifting and returning mechanism 300 comprises a first gear 320, a second gear 330, a third gear 340, a fourth gear 350, a fifth gear 360 and a sixth gear 370, wherein the fifth gear 360 and the sixth gear 370 are bevel gears; the first gear 320 is coaxially arranged on the rotating shaft 210; the second gear 330 and the third gear 340 are coaxially and rotatably connected to the first wiper arm 100, and the second gear 330 is in meshing connection with the first gear 320; the fourth gear 350 and the fifth gear 360 are coaxially and rotatably connected to the first wiper arm 100, and the fourth gear 350 is in meshing connection with the third gear 340; the sixth gear 370 is coaxially connected with the driving shaft of the motor 310 and is in meshing connection with the fifth gear 360.

[0011] Further, the rotating shaft 210 is provided with a key pin 220 at the connection position with the second wiper arm 200.

[0012] Further, the electric lifting and returning front wiper further comprises a spring 400, one end of the spring 400 is connected with the second wiper arm 200, and the other end of the spring 400 is connected with the first wiper arm 100 through a connecting piece 500, the connecting piece 500 is provided with a avoiding arc, one end of the connecting piece 500 is connected with the spring 400, and the other end of the connecting piece 500 is connected with the first wiper arm 100 and crosses the rotating shaft 210.

[0013] Further, the controller is provided with preset threshold values of the driving current and the motion time of the motor 310.

[0014] Compared with the prior art, the electric lifting and returning front wiper has the following beneficial effects:

[0015] The electric lifting and returning front wiper can realize the control of the movement of the second wiper arm of the front wiper in the direction perpendicular to the front windshield in the cab, so as to respond to the request of the user for lifting and returning the wiper from the windshield, and realize the automatic control of the lifting and returning of the wiper from the windshield. BRIEF DESCRIPTION OF DRAWINGS

[0016] The electric lifting and returning front wiper will be further described below in combination with the drawings:

[0017] Figure 1 Fig. 1 is a structural schematic view of one embodiment of the electric lifting and returning front wiper;

[0018] Figure 2 Fig. 2 is a partial structural front view of one embodiment of the electric lifting and returning front wiper; Figure 1 Fig. 3 is a local enlarged schematic view of position A in Fig. 2;

[0019] Figure 3 Fig. 4 is a partial structural front view of one embodiment of the electric lifting and returning front wiper.

[0020] Figure 4 Structure diagram of the connecting piece in one embodiment;

[0021] 100. first wiper arm;

[0022] 200. second wiper arm, 210. rotating shaft, 220. key pin;

[0023] 300. lift-return mechanism, 310. motor, 320. first gear, 330. second gear, 340. third gear, 350. fourth gear, 360. fifth gear, 370. sixth gear;

[0024] 400. spring;

[0025] 500. connecting piece, 510. avoiding arc. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] With reference to Figures 1 to 4 The embodiment provides a front wiper with electric lift and return, which comprises a first wiper arm 100, a second wiper arm 200 and a lift-return mechanism 300.

[0028] One end of the first wiper arm 100 is connected with a vehicle body, and the first wiper arm 100 is configured as a groove-shaped structure with an open side facing a windshield.

[0029] The second wiper arm 200 is rotatably connected with the first wiper arm 100 through a rotating shaft 210 fixedly arranged at one end of the second wiper arm 200, and a key pin 220 is arranged at the connection position of the rotating shaft 210 and the second wiper arm 200, so that the second wiper arm 200 and the rotating shaft 210 move at the same angular velocity.

[0030] The lift-return mechanism 300 comprises a motor 310, a controller and a series of transmission gears.

[0031] The motor 310 is installed in the groove on the side of the first wiper arm 100 facing the windshield, the drive shaft of the motor 310 is connected to the rotating shaft 210 through a series of transmission gear sets, the rotating speed and torque of the motor 310 are transmitted to the rotating shaft 210, the second wiper arm 200 is driven to rotate together with the rotating shaft 210 around one end of the first wiper arm 100, so that the second wiper arm 200 is lifted away from or returned to the first wiper arm 100.

[0032] The controller can control the forward and reverse rotation of the motor 310, the threshold values of the driving current and movement time of the motor 310 are preset in the controller, when the driving current of the motor 310 reaches the threshold value, the controller controls the motor 310 to stop working, so as to realize the protection of the motor 310; in addition, through the calibration of the movement time of the motor 310, the control of the rotation angle of the second wiper arm 200 can be realized; the controller can be integrated with the control system of the vehicle, or can be an independent controller installed in the cab of the vehicle.

[0033] In some specific embodiments, the motor 310 is arranged vertically to the rotating shaft 210, the drive shaft of the motor 310 is connected to the rotating shaft 210 through a bevel gear set to change the direction of the rotating speed and torque of the motor 310; in another embodiment, the motor 310 and the rotating shaft 210 can also be connected through a worm gear structure, but it is worth noting that the use of the worm gear structure will affect the manual lifting / returning of the second wiper arm 200 by the user, while the use of the bevel gear set will not affect the manual lifting / returning of the second wiper arm 200 by the user.

[0034] In the embodiment, the rotation speed and torque of the motor 310 are transmitted to the rotating shaft 210 through the series of transmission gear sets to achieve speed reduction and torque increase. The series of transmission gear sets include a first gear 320, a second gear 330, a third gear 340, a fourth gear 350, a fifth gear 360, and a sixth gear 370. The first gear 320, the second gear 330, the third gear 340, and the fourth gear 350 are conventional circular gears, and the fifth gear 360 and the sixth gear 370 are conical gears. The first gear 320 is coaxially arranged on the rotating shaft 210. The second gear 330 and the third gear 340 are coaxially and rotatably connected in the groove on the side of the first wiper arm 100 facing the windshield glass, and the second gear 330 is in meshing connection with the first gear 320. The fourth gear 350 and the fifth gear 360 are coaxially and rotatably connected in the groove on the side of the first wiper arm 100 facing the windshield glass, and the fourth gear 350 is in meshing connection with the third gear 340. The sixth gear 370 is coaxially connected with the driving shaft of the motor 310 and is in meshing connection with the fifth gear 360.

[0035] In the embodiment, in order to maintain a relatively stable positional relationship between the second wiper arm 200 and the first wiper arm 100, the second wiper arm 200 cannot be easily lifted up without external force. A spring 400 is further arranged between the second wiper arm 200 and the first wiper arm 100. One end of the spring 400 is connected with the second wiper arm 200, and the other end is connected with the first wiper arm 100 through a connecting piece 500. One end of the connecting piece 500 is connected with the spring 400, and the other end is connected with the first wiper arm 100 across the rotating shaft 210. In order not to affect the rotation of the rotating shaft 210, the connecting piece 500 is configured as an arc-shaped member to form an avoiding arc 510. In the homing state of the second wiper arm 200, the spring 400 is in a relaxed state. When the second wiper arm 200 is lifted up away from the windshield glass, the spring 400 is stretched.

[0036] The working principle of the electrically-driven front wiper provided in the embodiment is as follows:

[0037] When the wiper needs to be lifted up due to freezing rain, sleet and the like, the user controls the motor 310 to act through the controller in the cab, the rotating speed and torque of the motor 310 are transmitted to the rotating shaft 210 through the series of transmission gear sets, the second wiper arm 200 is driven to rotate together with the rotating shaft 210 around one end of the first wiper arm 100, so that the second wiper arm 200 is lifted away from the windshield glass relative to the first wiper arm 100; when the wiper needs to be homed, the user controls the motor 310 to reverse through the controller in the cab, the rotating speed and torque of the motor 310 are transmitted to the rotating shaft 210 through the series of transmission gear sets, the second wiper arm 200 is driven to rotate together with the rotating shaft 210 around one end of the first wiper arm 100 towards the windshield glass, so that the second wiper arm 200 is homed relative to the first wiper arm 100.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

Claims

1. An electrically powered lift and park front wiper characterized in that, The utility model relates to a squeegee arm device, including: First squeegee arm (100); Second squeegee arm (200), the second squeegee arm (200) is rotatable with first squeegee arm (100) by the rotatable connection of the pivot (210) fixedly arranged to one end of second squeegee arm (200); Lift homing mechanism (300), lift homing mechanism (300) includes motor (310) and controller, the motor (310) is installed on first squeegee arm (100), the drive shaft of motor (310) is transmission connection with pivot (210), the rotation of motor (310) drive shaft can drive pivot (210) and second squeegee arm (200) rotatable together, the controller can control motor (310) forward rotation and reverse rotation.

2. The electrically powered lift and park front wiper of claim 1, wherein, The motor (310) is arranged perpendicularly to the pivot (210), and the drive shaft of the motor (310) is transmission connected with the pivot (210) through a bevel gear set.

3. An electrically powered lift and park front wiper according to claim 2, characterised in that, The lift homing mechanism (300) includes a first gear (320), a second gear (330), a third gear (340), a fourth gear (350), a fifth gear (360) and a sixth gear (370), wherein the fifth gear (360) and the sixth gear (370) are bevel gears; the first gear (320) is coaxially arranged on the pivot (210); the second gear (330) and the third gear (340) are coaxially rotatably connected on the first squeegee arm (100), and the second gear (330) is in meshing connection with the first gear (320); the fourth gear (350) and the fifth gear (360) are coaxially rotatably connected on the first squeegee arm (100), and the fourth gear (350) is in meshing connection with the third gear (340); the sixth gear (370) is coaxially connected with the drive shaft of the motor (310) and is in meshing connection with the fifth gear (360).

4. The electrically powered lift and park front wiper of claim 1, wherein, The pivot (210) is provided with a key pin (220) at the connection with the second squeegee arm (200).

5. The electrically powered lift and park front wiper of claim 1 wherein, Further comprising a spring (400), one end of the spring (400) is connected with the second squeegee arm (200), the other end is connected with the first squeegee arm (100) through a connecting piece (500), the connecting piece (500) is provided with a clearance arc, one end of the connecting piece (500) is connected with the spring (400), and the other end is connected with the first squeegee arm (100) across the pivot (210).

6. The electrically powered lift and park front wiper of claim 1 wherein, The threshold values of the drive current and the motion time of the motor (310) are preset in the controller.

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