CN220101938U - Waterproof windshield wiper motor - Google Patents
Waterproof windshield wiper motor Download PDFInfo
- Publication number
- CN220101938U CN220101938U CN202321097237.7U CN202321097237U CN220101938U CN 220101938 U CN220101938 U CN 220101938U CN 202321097237 U CN202321097237 U CN 202321097237U CN 220101938 U CN220101938 U CN 220101938U
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- CN
- China
- Prior art keywords
- worm gear
- hole
- gear case
- terminal
- lip
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 5
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to a waterproof windshield wiper motor, which comprises a motor shell, a worm gear case cover and a speed reducing mechanism, wherein a shaft positioning seat hole is formed in the worm gear case, a worm gear shaft of the speed reducing mechanism is arranged on the shaft positioning seat hole, the output end of the worm gear shaft penetrates out of the worm gear case through the shaft positioning seat hole, the other end of the worm gear shaft is supported on the worm gear case cover, an oil seal is sleeved at the end part of the positioning seat hole, the oil seal comprises an installation framework, the installation framework comprises a cylindrical sleeving part and an annular part arranged at one port of the sleeving part, an annular rubber sealing lip is arranged on the annular part, and the lip of the rubber sealing lip is elastically contacted with the worm gear shaft to form sealing fit. Has the advantage of good sealing and waterproof properties.
Description
Technical Field
The present utility model relates to a wiper motor.
Background
The worm gear case of the existing windshield wiper motor has the defect of insufficient waterproof performance, specifically, only a protection backing ring is adopted between a worm gear shaft and a worm gear case shell, the protection backing ring is limited and fixed through a nut or a clamp spring, and the risk that rainwater enters the worm gear case through the worm gear shaft position exists.
Disclosure of Invention
The utility model aims at: in order to overcome the defects in the prior art, the utility model provides the waterproof windshield wiper motor with good waterproof performance.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a waterproof wiper motor, includes motor casing, worm gear case lid and reduction gears, is equipped with axle location seat hole on the worm gear case, and reduction gears's worm wheel axle is installed on axle location seat hole and the output wears out the worm gear case through axle location seat hole, and the other end of worm wheel axle supports on worm gear case lid, its characterized in that: the end part of the positioning seat hole is sleeved with an oil seal, the oil seal comprises a mounting framework, the mounting framework comprises a cylindrical sleeved part and an annular part arranged at one port of the sleeved part, an annular rubber sealing lip is arranged on the annular part, and the lip of the rubber sealing lip is elastically contacted with the worm wheel shaft to form sealing fit.
By adopting the technical scheme, the worm wheel shaft and the end opening of the shaft positioning seat of the worm wheel case are in sealing fit through the oil seal, and the sealing waterproof performance is effectively improved.
Preferably, the rubber sealing lip comprises an inner lip body and an outer lip body, wherein the inner lip body and the outer lip body are distributed along the axial direction of the worm wheel shaft, a spring ring groove is formed in the outer circumference side of the outer lip body, and an oil seal spring is arranged in the spring ring groove. Under the structural design, the double-lip body is designed, and the outer lip body is hooped by the oil seal spring, so that the waterproof sealing performance is remarkably improved.
Preferably, the inner lip body extends from the fixed connection end to one end of the lip opening obliquely far away from one end of the outer lip body. Under this structural design, improve sealing performance.
Preferably, the worm gear case cover is provided with a supporting installation hole, a supporting stud is screwed in the supporting installation hole, one end of the supporting stud is supported on the worm gear shaft through a steel ball, the other end of the supporting stud is an operating end penetrating out of the supporting installation hole, a locking nut is screwed in the operating end, a protective cap is covered on the locking nut, the protective cap is provided with a sealing skirt edge in contact with the worm gear case cover, and waterproof curing glue is filled in the protective cap. Under the structural design, the shaft supporting part with the fit clearance on the worm gear case cover adopts the protective cap, and the protective cap is filled with the curing adhesive to realize sealing, so that the waterproof performance is effectively improved.
Preferably, the worm gear case cover is provided with a terminal fixing hole, the terminal fixing hole is provided with a terminal seat through plastic injection molding, the terminal seat comprises an inner terminal plate covering an orifice in the terminal fixing hole, an outer terminal plate covering an outer orifice of the terminal fixing hole and a connecting part filled in the terminal fixing hole, the outer terminal plate is covered with a terminal cover, and the terminal plate in the terminal cover is solidified and sealed through filled solidified glue after being connected. Under this structural design, directly mould plastics on the worm gear case and form binding post to seal the opening on the worm gear case, adopt glue solidification seal after binding post wiring, guarantee reliable waterproof seal.
Preferably, the motor casing includes shell, casing base, connecting bolt and integrated into one piece lid shell on the worm gear case, and the shaping has the connection blind hole on the lid shell, is equipped with the countersunk head bolt hole on the casing base, is equipped with the step portion that supplies the shell port to cup joint on the casing base, is equipped with the sealing washer on the step portion, the sealed cup joint on the lid shell of shell one end, and the sealed cup joint on the step portion of casing base of another port of shell, connecting bolt passes countersunk head bolt hole and screw thread connect on the connecting blind hole, connecting bolt's head is arranged in countersunk head bolt hole, inlays in countersunk head bolt hole and is equipped with waterproof plug, and waterproof plug inside packing has the solidification to glue. Under this structural design, realize the good waterproof sealing of motor casing after the equipment.
The utility model is further described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a waterproof wiper motor according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of a portion I of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B in FIG. 1;
FIG. 5 is a schematic view of a worm gear case cover according to an embodiment of the present utility model;
FIG. 6 is an exploded view of FIG. 5;
fig. 7 is a cross-sectional view taken along C-C in fig. 5.
Description of the embodiments
Referring to fig. 1-4, the waterproof wiper motor disclosed by the utility model comprises a motor casing 1, a worm gear case 2, a worm gear case cover 3 and a speed reducing mechanism, wherein a shaft positioning seat hole 21 is formed in the worm gear case 2, the speed reducing mechanism comprises a worm gear 41 and a worm 42, the worm 42 and a motor shaft are integrally formed, the worm gear 41 is arranged on the worm gear case 2 through a worm gear shaft 411, the worm gear shaft 411 of the speed reducing mechanism is arranged on the shaft positioning seat hole 21, the output end of the worm gear shaft 411 penetrates out of the worm gear case 2 through the shaft positioning seat hole 21, the other end of the worm gear shaft 411 is supported on the worm gear case cover 3, an oil seal 5 is sleeved at the end part of the positioning seat hole 21, the oil seal 5 comprises a mounting framework 51, the mounting framework 51 comprises a cylindrical sleeving part 511 and an annular part 512 arranged at one end of the sleeving part 51, an annular rubber sealing lip 52 is arranged on the annular part 512, and the lip of the rubber sealing lip 52 is in elastic contact with the worm gear 411 to form sealing fit. In this embodiment, the mounting frame and the rubber seal lip are integrally formed of rubber. The worm wheel shaft and the end opening of the shaft positioning seat of the worm wheel case are in sealing fit through an oil seal, so that the sealing waterproof performance is effectively improved.
To ensure waterproof sealing performance, the rubber seal lip 52 includes an inner lip body 52b and an outer lip body 52a, the inner lip body 52b and the outer lip body 52a are distributed along the axial direction of the worm wheel shaft 411, and a spring ring groove is provided on the outer circumferential side of the outer lip body 52a, and an oil seal spring 53 is installed in the spring ring groove. The design of the double lips, and the outer lips are hooped by the oil seal spring, so that the waterproof sealing performance is remarkably improved. The inner lip body extends from the fixed connection end to one end of the lip opening obliquely far away from one end of the outer lip body. The sealing performance is improved. An oil-retaining bearing 6 is provided in the worm-wheel shaft seat hole 21, and the worm-wheel shaft is inserted into the oil-retaining bearing.
In order to ensure the integral waterproofness of the wiper motor, the waterproof performance of the corresponding parts is optimally designed, for example: the worm gear case cover 3 is provided with a supporting mounting hole 31, a supporting stud 61 is screwed in the supporting mounting hole, one end of the supporting stud 61 is supported on the worm gear shaft 411 through a steel ball 62, the other end of the supporting stud 61 is an operating end penetrating through the supporting mounting hole, a locking nut 63 is screwed in the operating end, a protective cap 64 is covered on the locking nut 63, the protective cap 64 is provided with a sealing skirt 641 contacting with the worm gear case cover 3, and waterproof curing glue (not shown in the figure) is filled in the protective cap 64. The shaft supporting part with the fit clearance on the worm gear case cover adopts a protective cap, and the protective cap is filled with curing glue to realize sealing, so that the waterproof performance is effectively improved.
As shown in fig. 5-7, the worm gear case cover 3 is provided with a terminal fixing hole 32, the terminal fixing hole 32 is provided with a terminal seat 7 by plastic injection molding, the terminal seat 7 includes an inner terminal plate 71 covering an inner orifice of the terminal fixing hole 32, an outer terminal plate 72 covering an outer orifice of the terminal fixing hole 32, and a connecting portion 73 filled in the terminal fixing hole, a terminal cover 74 is covered on the outer terminal plate 72, and a connection terminal plate in the terminal cover 74 is cured and sealed by filled curing glue after connection (glue is not shown in the drawing). The wiring terminal is directly formed on the worm gear case by injection molding, so that an opening on the worm gear case is closed, and the wiring terminal is sealed by glue solidification after wiring, so that reliable waterproof sealing is ensured.
In this embodiment, the motor casing adopts split processing to guarantee the machining precision of motor casing, then motor casing 1 includes shell 11, casing base 12, connecting bolt 13 and integrated into one piece lid shell 14 on worm gear case 2, consequently in order to guarantee the waterproof sealing performance after the motor casing equipment the lid is formed with the connection blind hole 141 on the casing base 12, is equipped with countersunk head bolt hole 121 on the casing base 12, is equipped with the step portion 122 that supplies shell 11 port to cup joint on the casing base 12, is equipped with sealing washer 123 on the step portion, shell 11 one end is sealed cup joint on lid shell 14, is equipped with the step arch of cup jointing on lid shell 14, sets up the O shape circle that is used for shell and lid shell sealing fit on the step portion of shell 12 on the step arch, and the connecting bolt 13 passes countersunk head bolt hole 121 and screwed onto connecting blind hole 141, the head of connecting bolt 13 is arranged in countersunk head bolt hole 121, is equipped with waterproof plug 15 in the countersunk head bolt hole 121 embedment, and waterproof plug 15 intussuseption is filled with the solidification glue. The motor casing is well sealed and waterproof after being assembled. The magnetic shoe rack 81 of the wiper motor is provided with a through hole for the connecting bolt to pass through so as to fix the magnetic shoe rack.
Claims (6)
1. The utility model provides a waterproof wiper motor, includes motor casing, worm gear case lid and reduction gears, is equipped with axle location seat hole on the worm gear case, and reduction gears's worm wheel axle is installed on axle location seat hole and the output wears out the worm gear case through axle location seat hole, and the other end of worm wheel axle supports on worm gear case lid, its characterized in that: the end part of the positioning seat hole is sleeved with an oil seal, the oil seal comprises a mounting framework, the mounting framework comprises a cylindrical sleeved part and an annular part arranged at one port of the sleeved part, an annular rubber sealing lip is arranged on the annular part, and the lip of the rubber sealing lip is elastically contacted with the worm wheel shaft to form sealing fit.
2. The water-resistant wiper motor according to claim 1, wherein: the rubber sealing lip comprises an inner lip body and an outer lip body, wherein the inner lip body and the outer lip body are distributed along the axial direction of the worm wheel shaft, a spring ring groove is formed in the outer circumference side of the outer lip body, and an oil seal spring is arranged in the spring ring groove.
3. The water-resistant wiper motor according to claim 2, wherein: the inner lip body extends from the fixed connection end to one end of the lip opening obliquely far away from one end of the outer lip body.
4. The water-resistant wiper motor according to claim 1, wherein: the worm gear case cover is provided with a supporting installation hole, a supporting stud is screwed in the supporting installation hole, one end of the supporting stud is supported on the worm gear shaft through a steel ball, the other end of the supporting stud is an operation end penetrating out of the supporting installation hole, a locking nut is screwed in the operation end, a protective cap is covered on the locking nut and provided with a sealing skirt edge in contact with the worm gear case cover, and waterproof curing glue is filled in the protective cap.
5. The water-resistant wiper motor according to claim 1, wherein: the worm gear case cover is provided with a terminal fixing hole, the terminal fixing hole is provided with a terminal seat through plastic injection molding, the terminal seat comprises an inner terminal plate covering an orifice in the terminal fixing hole, an outer terminal plate covering an outer orifice of the terminal fixing hole and a connecting part filled in the terminal fixing hole, the outer terminal plate is covered with a terminal cover, and a wiring terminal piece in the terminal cover is solidified and sealed through filled solidified glue after wiring.
6. The water-resistant wiper motor according to claim 1, wherein: the motor casing includes shell, casing base, connecting bolt and integrated into one piece lid shell on the worm gear case, and the shaping has the connection blind hole on the lid shell, is equipped with the countersunk head bolt hole on the casing base, is equipped with the step portion that supplies the shell port to cup joint on the casing base, is equipped with the sealing washer on the step portion, the sealed cup joint on the lid shell of shell one end, and the sealed cup joint on the step portion of casing base of another port of shell, connecting bolt passes countersunk head bolt hole and screw thread connect on the connecting blind hole, countersunk head bolt hole is arranged in to the head of connecting bolt, inlays in countersunk head bolt hole and is equipped with waterproof plug, and waterproof plug inside packing has the curing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321097237.7U CN220101938U (en) | 2023-05-08 | 2023-05-08 | Waterproof windshield wiper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321097237.7U CN220101938U (en) | 2023-05-08 | 2023-05-08 | Waterproof windshield wiper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101938U true CN220101938U (en) | 2023-11-28 |
Family
ID=88866281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321097237.7U Active CN220101938U (en) | 2023-05-08 | 2023-05-08 | Waterproof windshield wiper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101938U (en) |
-
2023
- 2023-05-08 CN CN202321097237.7U patent/CN220101938U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |