Windscreen wiper motor assembly with planetary structure

Abstract

The utility model discloses a windscreen wiper motor assembly with a planetary structure, 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 at the top of the motor shell, and the armature component is rotatably arranged in the motor shell. The first gear, the second gear and the planet wheel are arranged in the shell to be matched with the armature component for transmission, the armature component drives the second gear to transmit after being electrified, the second gear drives the planet wheel to rotate, the second gear and the planet wheel respectively rotate with the worm of the reduction gearbox component, and the worm drives the turbine to rotate. The worm wheel drives the gear component to rotate in the inner teeth of the planet wheel in an engaged mode, the output end of the gear component drives the crank component to rotate, then power is transmitted to an external windscreen wiper to scrape water drops on a windshield of an automobile, and by the adoption of the planetary transmission structure, transmission is stable and reliable, and transmission power is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to wiper technology field especially relates to a wiper motor assembly with planetary structure. 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 on the vehicle windshield, to improve the driver's visibility, increases the driving safety, because the legal requirement, almost all places of car are provided with the rain brush, the back window of the hatchback car and the recreational vehicle is also provided with the rain brush, with the rapid development of the automobile industry, people's consumption of the car is more and more, and the market of the automobile accessory becomes bigger and bigger, and the use demand of the wiper is rising year by year.

[0003] The power source of the wiper comes from the motor, and the existing wiper motor is generally fixedly connected with a speed reduction mechanism, and the power is not enough, in order to realize the increase of the transmission power, and then the motor volume is large.

[0004] Therefore, it is necessary to provide a wiper motor assembly with planetary structure to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a wiper motor assembly with planetary structure to solve the problem in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a wiper motor assembly with planetary structure, 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 top of motor casing is provided with the shell, the output end of armature part is in the shell, the first gear and the second gear are rotatably arranged in the shell, the first gear and the second gear are both double gear, the planetary gear is rotatably arranged in the shell, the small gear teeth of first gear and second gear are all engaged with planetary gear transmission, the output end structure of armature part is worm structure, and the output end of armature part is engaged with the big gear tooth of second gear transmission, the inner tooth is formed in the middle of planetary gear, the gear part is engaged and is driven and is arranged in the inner tooth of planetary gear, the output end of gear part penetrates the shell and extends to its outside, the crank part is sleeved on the output end of gear part, the nut is arranged on the side wall of crank part, the nut is screw connected on the shaft end of gear part, the crank part is fixedly connected with the wiper arm outside, one side in the shell is provided with two reduction gearbox parts, the outside of shell is provided with the cover plate part.

[0007] As a preferred technical scheme of the utility model, the output end of the gear component is sleeved with an iron flat gasket and a first shaft check ring at the connecting part with the shell, and a sealing sleeve is arranged outside the iron flat gasket and the first shaft check ring.

[0008] As a preferred technical scheme of the utility model, a reducer is arranged in the reduction gearbox component, two reducers are respectively coupled with the second gear and the planetary gear, the reduction gearbox component is generally composed of a worm and gear reducer, the worm of the reduction gearbox component is coupled with the second gear and the planetary gear, and the gear component drives the turbine of the reduction gearbox component.

[0009] As a preferred technical scheme of the utility model, a cover plate gasket is arranged at the connecting part of the cover plate component and the shell, and a rubber gasket is sleeved on the side wall of the shell.

[0010] As a preferred technical scheme of the utility model, a saddle-shaped gasket is arranged at the connecting part of the shaft end of the gear component and the gear center.

[0011] As a preferred technical scheme of the utility model, a first graphite flat gasket is arranged between the top of the armature component and the shell, the first graphite flat gasket is sleeved on the output end of the armature component, and a second shaft check ring is also clamped on the output end of the armature component.

[0012] As a preferred technical scheme of the utility model, an electric brush spring is arranged at the connecting part of the armature component and the shell, and a second graphite flat gasket is arranged at the connecting part of the other end of the armature component and the inner wall of the motor shell.

[0013] As a preferred technical scheme of the utility model, a plurality of screws are arranged at the connecting part of the shell and the motor shell, spring washers are sleeved on the screws, the motor shell and the shell are locked and fixed through the screws, and a machine shell gasket is arranged at the connecting part of the shell and the motor shell.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a wiper motor assembly with a planetary structure, the utility model discloses a first gear, a second gear and a planetary gear cooperate armature component transmission are set up in the shell, the armature component drives the second gear transmission after electrification, the second gear drives the planetary gear rotation, and the worm drives the turbine rotation, and the turbine drives the gear component to mesh in the inner tooth of the planetary gear and rotates, and the output end of the gear component drives the crank component to rotate, thereby power is transmitted to the external wiper and is used for scraping the water droplets on the windshield of the automobile, adopts this kind of planetary transmission structure, transmission is stable and reliable, transmission power is big, the volume of motor is reduced, and the motor is small and beautiful. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model is further illustrated below in connection with the drawings and embodiments.

[0017] Figure 1 is the overall structure front view of the utility model;

[0018] Figure 2 is the overall internal structure schematic view of the utility model;

[0019] Figure 3 is the overall structure left view of the utility model;

[0020] Figure 4 is the internal structure sectional view of the utility model.

[0021] In the figure: 1, reduction gearbox part; 2, first gear; 3, second gear; 4, screw; 5, spring washer; 6, cover plate part; 7, cover plate gasket; 8, saddle washer; 9, gear part; 10, iron flat pad; 11, first shaft baffle; 12, nut; 13, sealing sleeve; 14, crank part; 15, first graphite flat pad; 16, second shaft baffle; 17, brush spring; 18, casing gasket; 19, armature part; 20, stator part; 21, second graphite flat pad; 22, rubber pad; 23, planetary gear. DETAILED DESCRIPTION

[0022] The embodiments of the utility model are explained below with reference to the drawings. In this process, for the sake of ensuring the explicitness and convenience of the explanation, we can exaggerate the width of the lines or the size of the constituent elements in the drawings.

[0023] In addition, the terms in the following are defined based on the functions in the utility model, and can be different according to the intention or custom of the user or the user. Therefore, these terms are defined based on the whole content of the specification.

[0024] As Figures 1 to 4As shown, a windshield wiper motor assembly with a planetary structure includes a motor housing and a stator component 20. The stator component 20 is disposed on the inner wall of the motor housing, and an armature component 19 is disposed inside the stator component 20. The armature component 19 is rotatably disposed within the motor housing. A shell is disposed on the top of the motor housing. The shell is an integrally sealed structure. Multiple screws 4 are provided at the connection between the shell and the motor housing. Spring washers 5 are fitted on the screws 4. The screws 4 lock and fix the motor housing and the shell in place. A housing gasket 18 is provided at the connection point. The output end of the armature component 19 extends into the housing. A first graphite flat gasket 15 is provided between the top of the armature component 19 and the housing. The first graphite flat gasket 15 is sleeved on the output end of the armature component 19. A second shaft retaining ring 16 is also snapped onto the output end of the armature component 19 to prevent the armature component 19 from sliding up and down. A brush spring 17 is provided at the connection point between the armature component 19 and the housing. A second graphite flat gasket 21 is provided at the connection point between the other end of the armature component 19 and the inner wall of the motor housing.

[0025] like Figure 2 As shown, a first gear 2 and a second gear 3 are rotatably arranged inside the housing. Both the first gear 2 and the second gear 3 are double gears. A planetary gear 23 is rotatably arranged inside the housing. The pinions of the first gear 2 and the second gear 3 mesh with the planetary gear 23 for transmission. The output end of the armature component 19 has a worm gear structure, and the output end of the armature component 19 meshes with the large gear of the second gear 3 for transmission. The second gear 3 transmits power from the armature component 19 to the planetary gear 23. The planetary gear 23 has internal teeth in its middle. A gear component 9 is arranged to mesh with the internal teeth of the planetary gear 23 for transmission. The shaft end of the gear component 9... A saddle-shaped washer 8 is provided at the connection point with the center of the gear teeth. The output end of the gear component 9 passes through the outer shell and extends to its outer side. A flat iron washer 10 and a first shaft retaining ring 11 are fitted at the connection point between the output end of the gear component 9 and the outer shell. A sealing sleeve 13 is provided outside the flat iron washer 10 and the first shaft retaining ring 11. A crank component 14 is fitted at the output end of the gear component 9. A nut 12 is provided on the side wall of the crank component 14. The nut 12 is threaded to the shaft end of the gear component 9. The crank component 14 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.

[0026] The outer shell is provided with two reduction box components 1 on one side, the reduction box components 1 are provided with reducers, two reducers are coupled with the second gear 3 and the planetary gear 23 respectively to transmit power from the armature component 19, the reduction box components 1 are generally composed of worm gear reducers, the worm of the reduction box components 1 is coupled with the second gear 3 and the planetary gear 23, the gear component 9 is in transmission with the turbine of the reduction box components 1, the second gear 3 is driven to rotate by the armature component 19 after being electrified, the planetary gear 23 is driven to rotate by the second gear 3, the second gear 3 and the planetary gear 23 are respectively driven to rotate by the worm of the reduction box components 1, the worm drives the turbine to rotate, the turbine drives the gear component 9 to rotate in the internal tooth of the planetary gear 23, the output end of the gear component 9 drives the crank component 14 to rotate, and then the power is transmitted to the external wiper to remove water drops on the windshield of the automobile.

[0027] The outer shell is provided with a cover plate component 6, the cover plate component 6 is provided with a cover plate gasket 7 at the connection with the outer shell, and the sidewall of the outer shell is sleeved with a rubber pad 22.

[0028] The embodiment is specifically, the first gear 2, the second gear 3 and the planetary gear 23 are arranged in the outer shell to cooperate with the armature component 19 to drive, the second gear 3 is driven to rotate by the armature component 19 after being electrified, the planetary gear 23 is driven to rotate by the second gear 3, the second gear 3 and the planetary gear 23 are respectively driven to rotate by the worm of the reduction box components 1, the worm drives the turbine to rotate, the turbine drives the gear component 9 to rotate in the internal tooth of the planetary gear 23, the output end of the gear component 9 drives the crank component 14 to rotate, and then the power is transmitted to the external wiper to remove water drops on the windshield of the automobile, the planetary transmission structure is adopted, the transmission is stable and reliable, the transmission power is large, the size of the motor is reduced, and the motor is small and beautiful.

[0029] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A wiper motor assembly having a planetary structure, comprising a motor housing and a stator component (20) arranged on the inner wall of the motor housing, characterized in that: The stator component (20) is provided with an armature component (19) which is rotatably arranged in a motor housing, the top of the motor housing is provided with a shell, the output end of the armature component (19) extends into the shell, a first gear (2) and a second gear (3) are rotatably arranged in the shell, the first gear (2) and the second gear (3) are both double gear, a planetary gear (23) is rotatably arranged in the shell, the pinion teeth of the first gear (2) and the second gear (3) are all in meshing transmission with the planetary gear (23), the output end structure of the armature component (19) is a worm structure, and the output end of the armature component (19) is in meshing transmission with the large gear teeth of the second gear (3), the middle of the planetary gear (23) is provided with internal teeth, the internal teeth of the planetary gear (23) are in meshing transmission with a gear component (9), the output end of the gear component (9) penetrates through the shell and extends to the outside of the shell, the output end of the gear component (9) is sleeved with a crank component (14), the side wall of the crank component (14) is provided with a nut (12), the nut (12) is threadedly connected to the shaft end of the gear component (9), the crank component (14) is fixedly connected with an external wiper arm, one side of the shell is provided with two reduction box components (1), the outside of the shell is provided with a cover plate component (6).

2. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The output end of the gear component (9) is sleeved with an iron flat gasket (10) and a first shaft retainer (11) at the connection with the shell, and the outside of the iron flat gasket (10) and the first shaft retainer (11) is provided with a sealing sleeve (13).

3. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The reduction box component (1) is provided with a speed reducer, and two speed reducers are respectively coupled with the second gear (3) and the planetary gear (23), the reduction box component (1) is generally composed of a worm and gear speed reducer, the worm of the reduction box component (1) is coupled with the second gear (3) and the planetary gear (23), and the gear component (9) is in transmission with the turbine of the reduction box component (1).

4. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The cover plate component (6) is provided with a cover plate gasket (7) at the connection with the shell, and the side wall of the shell is sleeved with a rubber pad (22).

5. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The shaft end of the gear component (9) is provided with a saddle-shaped gasket (8) at the connection with the gear center.

6. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The top of the armature component (19) is provided with a first graphite flat gasket (15) between the shell, the first graphite flat gasket (15) is sleeved on the output end of the armature component (19), and a second shaft retainer (16) is also clamped on the output end of the armature component (19).

7. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: The armature component (19) is provided with a brush spring (17) at the connection with the shell, and the other end of the armature component (19) is provided with a second graphite flat gasket (21) at the connection with the inner wall of the motor housing.

8. A wiper motor assembly having a planetary structure according to claim 1, characterized in that: A plurality of screws (4) are arranged at the connection between the shell and the motor housing, a spring washer (5) is sleeved on the screw (4), the motor housing and the shell are locked and fixed through the screw (4), and a case gasket (18) is arranged at the connection between the shell and the motor housing.

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