Motor for automobile windscreen wiper

Abstract

The utility model discloses a motor for an automobile windscreen wiper, which comprises a motor shell and a rotor component, the rotor component is rotatably arranged on one side in the motor shell, a stator component is arranged on the outer side of the rotor component, and the outer wall of the stator component is fixedly connected with the inner wall of the motor shell. A worm of the reduction gearbox component is coupled with the electric drive component, the gear component is in transmission with a worm wheel of the reduction gearbox component, the electric drive component drives the worm of the reduction gearbox component to rotate after being electrified, the worm wheel drives the gear component to rotate, and the gear component is driven by the worm wheel to rotate. The crank component drives the wiper arm to reciprocate to scrape and clean water drops on a windshield, internal structural parts of the motor are high in universality, smooth in water wiping and attractive in appearance, the waterproof cover is arranged on the outer side of the joint of the gear component and the crank component to wrap the gear component, external liquid such as the water drops is prevented from leaking into the gear component to cause corrosion or short circuit, and the service life of the motor is prolonged. The sealing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor for automotive windshield wipers. Background Technology

[0002] Windshield wipers, also known as wipers, are devices used to wipe away raindrops and dust adhering to the windshield of a vehicle, improving the driver's visibility and increasing driving safety. Due to legal requirements, almost all cars are equipped with windshield wipers, and hatchbacks and SUVs also have rear window wipers. With the rapid development of the automotive industry, people's consumption of cars is increasing, and the market for auto parts is also growing, with the demand for windshield wipers rising year by year.

[0003] The power source for windshield wipers comes from electric motors. Existing wiper motors are generally fixedly connected to a reduction gear mechanism. Due to poor sealing at the connection between the traditional wiper motor and the reduction gear mechanism, water can easily enter the connection during rainy weather, causing the wiper motor to malfunction. If the wipers fail to work due to motor failure while driving, people will not be able to see the road conditions, which may lead to traffic accidents. Moreover, existing wiper motors are large in size and insufficient in power.

[0004] Therefore, it is necessary to provide a motor for automotive windshield wipers to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a motor for automotive windshield wipers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a motor for an automotive windshield wiper, comprising a motor housing and a rotor assembly. The rotor assembly is rotatably disposed within one side of the motor housing. A stator assembly is disposed on the outer side of the rotor assembly, and the outer wall of the stator assembly is fixedly connected to the inner wall of the motor housing. One side of the rotor assembly extends into the motor housing and is rotatably disposed on a bracket. A brush spring is disposed on the outer circumferential surface at the connection between the rotor assembly and the bracket. An electric drive assembly is rotatably disposed on the side wall of the bracket away from the rotor assembly. The end of the electric drive assembly is drively connected to the end of the rotor assembly. A steel ball is rolled on the end of the electric drive assembly away from the rotor assembly. A top screw is installed inside the housing, facing the side wall of the electric drive component. A clamping retaining ring is engaged with the outer circumference of the electric drive component. A reduction gearbox is installed outside the electric drive component, and a reducer is installed inside the reduction gearbox. The reducer is coupled to the electric drive component. A gear component is rotatably installed inside the motor housing, and the gear component is connected to the reduction gearbox. A cover plate is installed outside the motor housing, and a module component is installed outside the motor housing, located on one side of the cover plate. A connecting shaft is installed in the middle of the gear component, and a crank component is sleeved on the connecting shaft. The crank component is fixedly connected to the wiper arm of the external windshield wiper.

[0007] As a preferred technical solution of this utility model, the electric drive component is connected to the bracket by a bearing, and an iron sleeve is fitted on the outer wall of the electric drive component. The two side walls of the iron sleeve abut against the side wall of the clamping retaining ring and the side wall of the bearing, respectively.

[0008] As a preferred embodiment of this utility model, a spring is provided between the bearing and the bracket, and the spring is sleeved on the outer circumferential surface of the electric drive component.

[0009] As a preferred embodiment of this utility model, the gearbox component is generally composed of a worm gear reducer, wherein the worm of the gearbox component is coupled to the electric drive component, and the gear component is driven by the worm of the gearbox component.

[0010] As a preferred embodiment of this utility model, the cover plate is provided with a plurality of self-tapping screws, which lock the cover plate onto the motor housing.

[0011] As a preferred embodiment of this utility model, a waterproof cover is provided on the outside of the connection between the gear component and the crank component, and the waterproof cover covers the gear component.

[0012] As a preferred embodiment of this utility model, a rubber pad is provided inside one side of the waterproof cover, and an installation sleeve is provided inside the rubber pad.

[0013] As a preferred embodiment of this utility model, a fastening screw is provided between the side wall of the motor housing and the bracket, and a spring washer is fitted on the fastening screw, so that the fastening screw can fix and lock the motor housing onto the bracket.

[0014] As a preferred technical solution of this utility model, a shaft retaining ring is sleeved on the connecting shaft, an iron flat washer is provided above the shaft retaining ring, the iron flat washer is sleeved on the connecting shaft, a nut is threaded to the top of the connecting shaft, and a saddle-shaped washer is provided at the lower end of the gear component.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model discloses a motor for an automotive windshield wiper. The motor housing is secured to a bracket with fastening screws. A stator and rotor assembly are housed within the motor housing. The rotor rotation drives an electric drive assembly. A gearbox couplings with the electric drive assembly transmits power. A worm gear in the gearbox is also coupled to the electric drive assembly. A gear assembly drives a worm wheel in the gearbox. When the electric drive assembly is energized, it rotates the worm gear in the gearbox, which in turn drives the worm wheel. The worm wheel then... The drive gear assembly rotates, and a connecting shaft is set in the middle of the gear assembly. The crank assembly is locked to the connecting shaft by a nut. The crank assembly is fixedly connected to the wiper arm of the external wiper. The crank assembly drives the wiper arm to reciprocate and wipe away water droplets on the windshield. The motor has highly interchangeable internal components, high transmission power, smooth wiping, and an attractive appearance. A waterproof cover is set on the outside of the connection between the gear assembly and the crank assembly to cover the gear assembly, preventing external water droplets and other liquids from seeping into the interior and causing corrosion or short circuits. The sealing and waterproofing effect is good. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the overall structure of this utility model;

[0020] Figure 3 This is a top view of the present invention.

[0021] In the diagram: 1. Motor housing; 2. Rotor assembly; 3. Top screw; 4. Steel ball; 5. Electric drive assembly; 6. Clamping retaining ring; 7. Iron sleeve; 8. Spring; 9. Brush spring; 10. Stator assembly; 11. Gearbox assembly; 12. Mounting sleeve; 13. Rubber pad; 14. Waterproof cover; 15. Nut; 16. Crank assembly; 17. Gear assembly; 18. Self-tapping screw; 19. Module assembly; 20. Cover plate; 21. Iron flat washer; 22. Shaft retaining ring; 23. Saddle washer; 24. Fastening screw; 25. Spring washer. Detailed Implementation

[0022] The embodiments of this utility model will now be described with reference to the accompanying drawings. In this process, to ensure clarity and convenience, we may exaggerate the width of lines or the size of constituent elements in the drawings.

[0023] Furthermore, the terms used below are defined based on the functions of this utility model and may vary depending on the user's or operator's intent or convention. Therefore, these terms are defined based on the entire contents of this specification.

[0024] like Figures 1 to 3As shown, a motor for an automotive windshield wiper includes a motor housing 1 and a rotor component 2. The rotor component 2 is rotatably disposed inside the motor housing 1. A stator component 10 is disposed on the outer side of the rotor component 2, and the outer wall of the stator component 10 is fixedly connected to the inner wall of the motor housing 1. One side of the rotor component 2 extends into the motor housing 1 and is rotatably disposed on a bracket. A brush spring 9 is disposed on the outer circumferential surface of the connection between the rotor component 2 and the bracket. An electric drive component 5 is rotatably disposed on the side wall of the bracket away from the rotor component 2. The electric drive component 5 is connected to the bracket via a bearing. The end of the electric drive component 5 is drively connected to the end of the rotor component 2, and the rotor component 2 drives the electric drive component 5 to rotate. A steel ball 4 is rolled on the end of the electric drive component 5 away from the rotor component 2. A top screw 3 is disposed inside the motor housing 1, and the top screw 3 is disposed opposite the side wall of the electric drive component 5 to limit the electric drive component 5 and ensure smooth rotation of the electric drive component 5. A clamping retaining ring 6 is snapped onto the outer circumference of the electric drive component 5. An iron sleeve 7 is fitted onto the outer wall of the electric drive component 5. The two side walls of the iron sleeve 7 abut against the side walls of the clamping retaining ring 6 and the bearing side walls, respectively. A spring 8 is provided between the bearing and the bracket. The spring 8 is fitted onto the outer circumference of the electric drive component 5. A reduction gearbox component 11 is provided on the outside of the electric drive component 5. A reducer is provided inside the reduction gearbox component 11. The reducer is coupled to the electric drive component 5 to transmit power from the electric drive component 5. The reduction gearbox component 11 is generally composed of a worm gear reducer. The worm of the reduction gearbox component 11 is coupled to the electric drive component 5. A gear component 17 is rotatably provided inside the motor housing 1. The gear component 17 drives the worm of the reduction gearbox component 11. When the electric drive component 5 is energized, it drives the worm of the reduction gearbox component 11 to rotate. The worm drives the worm to rotate. The worm then drives the gear component 17 to rotate, thereby transmitting power to the external windshield wipers to wipe away water droplets on the windshield of the car.

[0025] A cover plate 20 is provided on the outside of the motor housing 1. A plurality of self-tapping screws 18 are provided on the cover plate 20. The cover plate 20 is locked onto the motor housing 1 by the plurality of self-tapping screws 18. A module component 19 is provided on the outside of the motor housing 1. The module component 19 is located on one side of the cover plate 20. The operation of the electrical components inside the motor housing 1 is controlled by the module component 19.

[0026] like Figure 2As shown, a connecting shaft is provided in the middle of the gear component 17. A shaft retaining ring 22 is sleeved on the connecting shaft. An iron flat washer 21 is provided above the shaft retaining ring 22. The iron flat washer 21 is sleeved on the connecting shaft. A crank component 16 is also sleeved on the connecting shaft. A nut 15 is threaded to the top of the connecting shaft. Rotating the nut 15 fixes and presses the crank component 16 onto the iron flat washer 21. The crank component 16 is fixedly connected to the wiper arm of the external wiper. The crank component 16 drives the wiper arm to reciprocate to wipe away water droplets on the windshield. A saddle-shaped washer 23 is provided at the lower end of the gear component 17.

[0027] like Figure 3 As shown, a waterproof cover 14 is provided on the outside of the connection between the gear component 17 and the crank component 16. The waterproof cover 14 covers the gear component 17 to prevent external water droplets and other liquids from leaking into the interior and causing corrosion or short circuit. A rubber pad 13 is provided inside one side of the waterproof cover 14, and an installation sleeve 12 is provided inside the rubber pad 13. A fastening screw 24 is provided between the side wall of the motor housing 1 and the bracket. A spring washer 25 is fitted on the fastening screw 24. The motor housing 1 is fixed and locked to the bracket by the fastening screw 24.

[0028] Specifically, the motor housing 1 is locked and fixed to the bracket by fastening screws 24. A stator component 10 and a rotor component 2 are disposed inside the motor housing 1. The rotation of the rotor component 2 drives the electric drive component 5 to rotate. The reducer of the gearbox component 11 is coupled to the electric drive component 5 to transmit power from the electric drive component 5. The worm gear of the gearbox component 11 is coupled to the electric drive component 5. The gear component 17 drives the worm wheel of the gearbox component 11. When the electric drive component 5 is energized, it drives the worm gear of the gearbox component 11 to rotate, which in turn drives the worm wheel to rotate, and the worm wheel drives the gear component... 17 rotates, and a connecting shaft is set in the middle of the gear component 17. The crank component 16 is locked to the connecting shaft by the nut 15. The crank component 16 is fixedly connected to the wiper arm of the external wiper. The crank component 16 drives the wiper arm to reciprocate to wipe away water droplets on the windshield. The internal structure of the motor has strong versatility of parts, high transmission power, smooth wiping, and beautiful appearance. A waterproof cover 14 is set on the outside of the connection between the gear component 17 and the crank component 16 to cover the gear component 17, preventing external water droplets and other liquids from leaking into the interior and causing corrosion or short circuit. The sealing effect is good.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor for an automotive windshield wiper, comprising a motor housing (1) and a rotor assembly (2), wherein the rotor assembly (2) is rotatably disposed on one side inside the motor housing (1), characterized in that: A stator component (10) is provided on the outside of the rotor component (2). The outer wall of the stator component (10) is fixedly connected to the inner wall of the motor housing (1). One side of the rotor component (2) extends into the motor housing (1) and is rotatably mounted on the bracket. A brush spring (9) is provided on the outer circumferential surface of the connection between the rotor component (2) and the bracket. An electric drive component (5) is rotatably mounted on the side wall of the bracket away from the rotor component (2). The end of the electric drive component (5) is connected to the end of the rotor component (2). A steel ball (4) is rolled on the end of the electric drive component (5) away from the rotor component (2). A top screw (3) is provided inside the motor housing (1). The top screw (3) is positioned opposite the side wall of the electric drive component (5). A clamping retaining ring (6) is snapped onto the outer circumference of the electric drive component (5). A gearbox component (11) is provided on the outside of the electric drive component (5). A reducer is provided inside the gearbox component (11). The reducer is coupled to the electric drive component (5). A gear component (17) is rotatably provided inside the motor housing (1). The gear component (17) is connected to the gearbox component (11) in a transmission. A cover plate (20) is provided on the outside of the motor housing (1). A module component (19) is provided on the outside of the motor housing (1). The module component (19) is located on one side of the cover plate (20). A connecting shaft is provided in the middle of the gear component (17). A crank component (16) is sleeved on the connecting shaft. The crank component (16) is fixedly connected to the wiper arm of the external wiper.

2. The motor for an automotive windshield wiper according to claim 1, characterized in that: The electric drive component (5) is connected to the bracket by a bearing. An iron sleeve (7) is fitted on the outer wall of the electric drive component (5). The two side walls of the iron sleeve (7) abut against the side wall of the clamping ring (6) and the side wall of the bearing, respectively.

3. The motor for an automotive windshield wiper according to claim 2, characterized in that: A spring (8) is provided between the bearing and the bracket, and the spring (8) is sleeved on the outer circumferential surface of the electric drive component (5).

4. The motor for an automotive windshield wiper according to claim 1, characterized in that: The gearbox component (11) is generally composed of a worm gear reducer. The worm of the gearbox component (11) is coupled to the electric drive component (5), and the gear component (17) drives the worm of the gearbox component (11).

5. A motor for an automotive windshield wiper according to claim 1, characterized in that: The cover plate (20) is provided with a plurality of self-tapping screws (18), which lock the cover plate (20) onto the motor housing (1).

6. The motor for an automotive windshield wiper according to claim 1, characterized in that: A waterproof cover (14) is provided on the outside of the connection between the gear component (17) and the crank component (16), and the waterproof cover (14) covers the gear component (17).

7. A motor for an automotive windshield wiper according to claim 6, characterized in that: A rubber pad (13) is provided inside one side of the waterproof cover (14), and an installation sleeve (12) is provided inside the rubber pad (13).

8. A motor for an automotive windshield wiper according to claim 1, characterized in that: A fastening screw (24) is provided between the side wall of the motor housing (1) and the bracket. A spring washer (25) is fitted on the fastening screw (24). The fastening screw (24) fixes and locks the motor housing (1) onto the bracket.

9. A motor for an automotive windshield wiper according to claim 1, characterized in that: A retaining ring (22) is fitted on the connecting shaft, and an iron flat washer (21) is provided above the retaining ring (22). The iron flat washer (21) is fitted on the connecting shaft, and a nut (15) is threaded to the top of the connecting shaft. A saddle-shaped washer (23) is provided at the lower end of the gear component (17).

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