Wiper motor assembly with good sealing performance

Abstract

The utility model discloses a wiper motor assembly with good sealing performance, which comprises a motor shell and a stator component, the stator component is arranged on the inner wall of the motor shell, an armature component is arranged in the stator component, the armature component is rotatably arranged in the motor shell, a shell is arranged on the side wall of the motor shell, and the motor shell is provided with a motor. The first gear and the second gear are arranged in the shell and matched with the left-hand teeth and the right-hand teeth arranged on the output shaft of the armature part for transmission, the armature part drives the gear part to rotate after being electrified, and the output end of the gear part drives the crank part to rotate. The transmission is stable and reliable, the transmission efficiency is high, the conducting strip and the connector of the wire group are wrapped and sealed through black silicon rubber, the waterproof effect is good, the black silicon rubber part on the sealing cover is sealed through the wire covering plate, and the sealing effect is further sealed and enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wiper technology field especially relates to a rain -shading motor assembly with good sealing. BACKGROUND

[0002] The wiper is also called as the water wiper, water, rain brush or windshield wiper, is used to brush and scrape the equipment of the raindrop and dust attached to the vehicle windshield, to improve the driver's visibility, increases the driving safety, because the legal requirement, almost all places of car are with rain brush, the back window of the hatchback car and the holiday car is also provided with rain brush, with the rapid development of the automobile industry, people's consumption of the car is more and more, the market of the automobile accessory becomes also bigger and bigger, the use demand of the wiper is rising unceasingly year by year.

[0003] The power source of the wiper comes from the motor, the existing wiper motor is generally connected with the speed reduction mechanism directly, the power is transmitted to the crank through the speed reduction mechanism to drive the wiper arm reciprocating motion, the transmission is not stable enough, the wire connection of the internal components is poor in sealing, easy to cause the connection corrosion short circuit, influence the service life of the motor.

[0004] Therefore, it is necessary to provide a rain -shading motor assembly with good sealing to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a rain -shading motor assembly with good sealing to solve the problems in the above background technology.

[0006] To realize above-mentioned purpose, the utility model provides the following technical scheme: a rain -shading motor assembly with good sealing, including motor casing and stator part, the stator part is arranged on the inner wall of motor casing, the armature part is arranged in the stator part, the armature part is rotatably arranged in the motor casing, the lateral wall of motor casing is provided with the shell, the connecting place of shell and motor casing is provided with O type sealing ring, the O type sealing ring is sleeved in the end of shell, the output end of armature part is in-depth to the shell, the output end of armature part is provided with left-handed tooth and right-handed tooth, the connecting place of armature part and shell is provided with brush spring, the first gear and second gear are rotatably arranged in the shell, the gear part is rotatably arranged in the shell, the gear part is engaged transmission with the small gear tooth of second gear, the output end of gear part is provided with crank part, the crank part is fixedly connected with the wiper arm of outside, the outside of shell is provided with the cover, the connecting place of cover end and shell is provided with the gasket of cover plate, the inner wall of cover is provided with a plurality of conducting sheets, a plurality of conducting sheets are provided with wire group between, a plurality of conducting sheets are bonded with black silicone rubber outside, the cover wire board is provided with the cover wire board outside, and the cover wire board is closed to the black silicone rubber part of cover.

[0007] As a preferred technical solution of this utility model, a saddle-shaped washer is provided at the connection between the shaft end of the gear component and the housing. The output end of the gear component passes through the housing and extends to its outer side. An iron flat washer and a shaft retaining ring are sleeved at the connection between the output end of the gear component and the housing. A sealing sleeve is provided outside the iron flat washer and the shaft retaining ring.

[0008] As a preferred technical solution of this utility model, a first self-tapping screw and a plurality of second self-tapping screws are provided at the connection between the cover and the outer shell, and the first self-tapping screw and the plurality of second self-tapping screws lock the cover to the outer shell.

[0009] As a preferred embodiment of this utility model, the conductor group includes a first conductor, a second conductor, a third conductor, a fourth conductor, and a fifth conductor. The first and second conductors are black, the third conductor is white, the fourth conductor is blue, and the fifth conductor is green.

[0010] As a preferred embodiment of this utility model, the first gear and the second gear are both double gears, and the first gear and the second gear respectively mesh with the left-hand helical gear and the right-hand helical gear on the output end of the armature component for transmission.

[0011] As a preferred technical solution of this utility model, a spherical rotating ring is provided between the output end of the armature component and the inner wall of the housing, and a clamping retaining ring is snapped onto the outer circumferential surface of the output shaft of the armature component, and a first graphite flat gasket is provided between the side wall of the clamping retaining ring and the side wall of the spherical rotating ring.

[0012] As a preferred embodiment of this utility model, a second graphite flat gasket is provided at the connection between the other end of the armature component and the inner wall of the motor housing.

[0013] As a preferred embodiment of this utility model, a plurality of screws are provided at the connection between the outer shell and the motor housing, and spring washers are fitted on the screws, thereby locking and fixing the motor housing and the outer shell together.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses a windshield wiper motor assembly with good sealing performance. The assembly utilizes a first gear and a second gear within the housing, which engage with a left-handed and a right-handed gear on the output shaft of the armature component for transmission. When the armature component is energized, it drives the first and second gears. The second gear drives a gear assembly to rotate, and the gear teeth of the gear assembly transmit power to the worm gear of the reduction gearbox component. The worm gear drives a turbine to rotate, and the output end of the gear assembly drives a crank assembly to rotate, thereby transmitting power to the external windshield wipers to remove water droplets from the windshield. The transmission is smooth, reliable, and highly efficient. The conductive sheet and wire assembly joints are sealed with black silicone rubber, providing good waterproofing. A cover plate further seals the black silicone rubber portion, enhancing the sealing effect and extending the motor's lifespan. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Fig. 1 This is a front view of the overall structure of this utility model;

[0018] Fig. 2 This is a cross-sectional view (AA) of this utility model;

[0019] Fig. 3 This is a schematic diagram showing the connection between the cap and the wire in this utility model.

[0020] In the diagram: 1. O-ring seal; 2. Clamping retaining ring; 3. First graphite flat washer; 4. Cover plate gasket; 5. First self-tapping screw; 6. Cover plate; 7. Gear assembly; 8. Gearbox assembly; 9. Saddle washer; 10. Iron flat washer; 11. Shaft retaining ring; 12. Sealing sleeve; 13. Second self-tapping screw; 14. First gear; 15. Second gear; 16. Spring washer; 17. Screw; 18. Brush spring; 19. Stator assembly; 20. Armature assembly; 21. Second graphite flat washer; 22. Cover; 23. Wire assembly; 231. First wire; 232. Second wire; 233. Third wire; 234. Fourth wire; 235. Fifth wire; 24. Silicone rubber. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] likeFigs. 1 to 3 As shown, a well-sealed wiper motor assembly includes a motor housing and a stator component 19. The stator component 19 is disposed on the inner wall of the motor housing, and an armature component 20 is disposed inside the stator component 19. The armature component 20 is rotatably disposed within the motor housing. A shell is disposed on the side wall of the motor housing. The shell is an integrally sealed structure. Multiple screws 17 are provided at the connection between the shell and the motor housing. Spring washers 16 are fitted on the screws 17. The screws 17 lock and fix the motor housing and the shell together. An O-ring seal 1 is provided at the connection between the shell and the motor housing. The O-ring 1 is fitted onto the end of the outer shell. The output end of the armature component 20 extends into the outer shell. A spherical ring is formed between the output end of the armature component 20 and the inner wall of the outer shell. A clamping retaining ring 2 is snapped onto the outer circumference of the output shaft of the armature component 20. A first graphite flat gasket 3 is provided between the side wall of the clamping retaining ring 2 and the side wall of the spherical ring. A left-handed tooth and a right-handed tooth are provided on the output end of the armature component 20. A brush spring 18 is provided at the connection between the armature component 20 and the outer shell. A second graphite flat gasket 21 is provided at the connection between the other end of the armature component 20 and the inner wall of the motor housing.

[0024] A first gear 14 and a second gear 15 are rotatably arranged inside the housing. Both the first gear 14 and the second gear 15 are double gears. The first gear 14 and the second gear 15 respectively mesh with the left-hand and right-hand helical teeth on the output end of the armature component 20. A gear component 7 is rotatably arranged inside the housing. The gear component 7 meshes with the pinion teeth of the second gear 15. The second gear 15 transmits the power of the armature component 20 to the gear component 7. A saddle-shaped washer 9 is provided at the connection between the shaft end of the gear component 7 and the housing. The output end of the gear component 7 passes through the housing and extends to its outer side. A flat iron washer 10 and a shaft retaining ring 11 are sleeved at the connection between the output end of the gear component 7 and the housing. A sealing sleeve 12 is provided outside the flat iron washer 10 and the shaft retaining ring 11. A crank component is provided at the output end of the gear component 7. The crank component is fixedly connected to the external wiper arm and is used to drive the wiper arm to reciprocate to wipe away water droplets on the windshield of the car.

[0025] The housing contains a reduction gearbox component 8, which houses a reducer. The reducer is coupled to a gear component 7 to transmit power from the armature component 20. The reduction gearbox component 8 is typically composed of a worm gear reducer. The worm of the reduction gearbox component 8 is coupled to the gear teeth of the gear component 7. When the armature component 20 is energized, it drives the first gear 14 and the second gear 15. The second gear 15 drives the gear component 7 to rotate. The gear teeth of the gear component 7 are coupled to the worm of the reduction gearbox component 8, and the worm drives the turbine to rotate. The output end of the gear component 7 drives the crank component to rotate, thereby transmitting power to the external windshield wipers to wipe away water droplets on the windshield of the car.

[0026] A cover 22 is provided on the outer side of the outer casing. A first self-tapping screw 5 and multiple second self-tapping screws 13 are provided at the connection point between the cover 22 and the outer casing. The cover 22 is locked and fixed to the outer casing by the first self-tapping screw 5 and multiple second self-tapping screws 13. A cover plate gasket 4 is provided at the connection point between the end of the cover 22 and the outer casing for sealing. Multiple conductive sheets are provided on the inner wall of the cover 22. A wire group 23 is provided between the multiple conductive sheets, electrically connecting the multiple conductive sheets to power internal components. The wire group 23 includes a first wire 231 and a second wire 232. The third conductor 233, the fourth conductor 234, and the fifth conductor 235 are described. The first conductor 231 and the second conductor 232 are black, the third conductor 233 is white, the fourth conductor 234 is blue, and the fifth conductor 235 is green. Black silicone rubber 24 is bonded to the outside of the multiple conductive sheets. The black silicone rubber 24 covers and seals the joints of the conductive sheets and the conductor group 23, providing good waterproofing. A cover plate 6 is provided on the outside of the cover 22. The cover plate 6 seals the black silicone rubber 24 part of the cover 22, further sealing and enhancing the sealing effect.

[0027] Specifically, the implementation involves a first gear 14 and a second gear 15 housed within the housing, which, in conjunction with left-hand and right-hand helical teeth on the output shaft of the armature component 20, drive the first gear 14 and the second gear 15 when energized. The second gear 15 drives the gear component 7 to rotate, and the teeth of the gear component 7 drive the worm gear of the reduction gearbox component 8. The worm gear drives the turbine to rotate, and the output end of the gear component 7 drives the crank component to rotate, thereby transmitting power to the external windshield wipers to remove water droplets from the car's windshield. The transmission is smooth, reliable, and highly efficient. The conductive sheet and the connector of the wire assembly 23 are sealed with black silicone rubber 24, providing good waterproofing. The black silicone rubber 24 portion on the cover 22 is further sealed by the cover plate 6, enhancing the sealing effect and extending the motor's service life.

[0028] 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 windshield wiper motor assembly with good sealing performance, comprising a motor housing and a stator component (19), wherein the stator component (19) is disposed on the inner wall of the motor housing, characterized in that: An armature component (20) is provided inside the stator component (19). The armature component (20) is rotatably disposed inside the motor housing. An outer shell is provided on the side wall of the motor housing. An O-ring (1) is provided at the connection between the outer shell and the motor housing. The O-ring (1) is sleeved on the end of the outer shell. The output end of the armature component (20) extends into the outer shell. A left-hand helical tooth and a right-hand helical tooth are provided on the output end of the armature component (20). A brush spring (18) is provided at the connection between the armature component (20) and the outer shell. A first gear (14) and a second gear (15) are rotatably disposed inside the outer shell. A gear component (7) is rotatably disposed inside the outer shell. The gear component (7) meshes with the pinion teeth of the second gear (15) for transmission. The output end of the gear component (7) is provided with a crank component, which is fixedly connected to the external wiper arm. The outer side of the outer shell is provided with a cover (22). The end of the cover (22) is connected to the outer shell with a cover plate gasket (4). The inner wall of the cover (22) is provided with multiple conductive sheets. A wire group (23) is provided between the multiple conductive sheets. Black silicone rubber (24) is bonded to the outside of the multiple conductive sheets. A cover wire plate (6) is provided on the outside of the cover (22). The cover wire plate (6) seals the black silicone rubber (24) part on the cover (22).

2. The windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: A saddle-shaped washer (9) is provided at the connection between the shaft end of the gear component (7) and the outer shell. The output end of the gear component (7) passes through the outer shell and extends to its outer side. An iron flat washer (10) and a shaft retaining ring (11) are sleeved at the connection between the output end of the gear component (7) and the outer shell. A sealing sleeve (12) is provided on the outside of the iron flat washer (10) and the shaft retaining ring (11).

3. The windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: The cover (22) is provided with a first self-tapping screw (5) and a plurality of second self-tapping screws (13) at the connection between the cover (22) and the outer shell. The first self-tapping screw (5) and the plurality of second self-tapping screws (13) lock the cover (22) to the outer shell.

4. The windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: The conductor group (23) includes a first conductor (231), a second conductor (232), a third conductor (233), a fourth conductor (234), and a fifth conductor (235). The first conductor (231) and the second conductor (232) are black, the third conductor (233) is white, the fourth conductor (234) is blue, and the fifth conductor (235) is green.

5. A windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: The first gear (14) and the second gear (15) are both double gears. The first gear (14) and the second gear (15) respectively mesh with the left helical teeth and the right helical teeth on the output end of the armature component (20) for transmission.

6. A windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: The output end of the armature component (20) is connected to the inner wall of the housing by a spherical rotating ring. A clamping retaining ring (2) is snapped onto the outer circumferential surface of the output shaft of the armature component (20). A first graphite flat pad (3) is provided between the side wall of the clamping retaining ring (2) and the side wall of the spherical rotating ring.

7. A windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: A second graphite flat pad (21) is provided at the connection between the other end of the armature component (20) and the inner wall of the motor housing.

8. A windshield wiper motor assembly with good sealing performance according to claim 1, characterized in that: Multiple screws (17) are provided at the connection between the outer casing and the motor housing. Spring washers (16) are fitted on the screws (17). The screws (17) lock and fix the motor housing and the outer casing.

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