CN2772105Y - Automobile direct-current dynamo - Google Patents
Automobile direct-current dynamo Download PDFInfo
- Publication number
- CN2772105Y CN2772105Y CN 200420110371 CN200420110371U CN2772105Y CN 2772105 Y CN2772105 Y CN 2772105Y CN 200420110371 CN200420110371 CN 200420110371 CN 200420110371 U CN200420110371 U CN 200420110371U CN 2772105 Y CN2772105 Y CN 2772105Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- motor
- shape circle
- wheel shaft
- worm
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to an automobile direct-current electric machine, which comprises electric machine parts and reducer parts. The utility model is characterized in that the worm wheel shaft part of a speed reducer is provided with seal structure. The seal structure is characterized in that the output face of a spline output device of the electric motor is provided with two stepped cylinder cavities. A sealing O-shaped ring is arranged in the cylinder cavity with small diameter, a sealing O-shaped ring and a closing ring are arranged in the cylinder cavity with large diameter, and the corresponding positions of the sealing O-shaped rings can be fixed by the closing ring. The sealing reliability of the direct-current electric machine can be improved in large degree.
Description
Technical field
The utility model belongs to auto parts machinery, relates in particular to automotive direct current machine.
Background technology
At present, the device of raising automotive direct current machine sealing property and measure are also few in actual applications.Figure one is a kind of automotive direct current machine that is applied at present in the electric glass lifter for automobile, and its measure that improves sealing property is to adopt the bottom of shell at motor that drainage arrangement is housed, and the water that enters motor is flowed out from drainage arrangement.This device truly has certain effect to the raising of automotive direct current machine sealing property aspect, but the defective of its existence also is tangible:
Because motor itself is not a sealed electric-motor, water can enter motor body from the composition surface of motor reduction gearbox end and brush holder yoke and reduction box and the composition surface of brush holder yoke and casing.Though water can flow out from drainage arrangement, but conductive components such as the armature of stream process, brush, electric current connecting line, thermal protector in the approach that the flows to process of water, on the one hand this functional reliability to motor makes a very bad impression, and can cause short circuit when serious and burn motor or some conductive components of motor and cause catastrophic effect; On the other hand, conductive component passes through the dipping of water for a long time, and water also has destruction to conductive element device itself, as make the surface owing to produce electro-chemical reaction accelerated oxidation, conduction tie point contact resistance becomes big even opens circuit.
Moreover the precondition that water will flow out from drainage arrangement be to be installed in the application system or on the automobile time, drainage arrangement must be in the bottommost of motor upright position, otherwise will cause motor internal generation ponding, and causes adverse influence when motor.But such motor mounting condition, thereby define the application scenario of motor with greatly having limited electrical installation.
In the electric motor of automobile, a large amount of reducing gears that use worm gear and worm screw, as wiper motor, glass-frame riser motor, seat adjustment motor, skylight motor etc., this is because worm gear and worm speed-down structure are the big and economic a kind of deceleration schemes of the little speed reducing ratio of a kind of volume.But it has also brought many adverse influences, because worm gear and worm speed-down structure tool have the dimensions, the reduction box that this mechanism is installed must be arranged, if the sealing property of the integral body of motor was not carried out planning and design, water can enter motor body from the fit-up gap of composition surface, motor reduction gearbox and reduction box cover plate between composition surface, motor spline follower and the reduction box worm-wheel shaft of composition surface, brush holder yoke and the casing of motor reduction gearbox end and brush holder yoke and reduction box, and the sealing property of motor just will be owing to worm gear and worm speed-down structure and variation.
Summary of the invention
The utility model is in order to solve the shortcoming of existing electric motor of automobile poor sealing performance, and a kind of automotive direct current machine that has more high sealing performance that provides, the utility model is planned the sealing property of the integral body of motor and is designed, make the reliability of seal approach of direct current machine improve significantly, form a sealed electric-motor, oxide-film can successfully form when having guaranteed motor commutation again on the other hand.
The technical measures that the utility model is taked are:
Automotive direct current machine comprises motor component and decelerator parts, is characterized in, partly is provided with the draw-in groove structure at the reduction box worm-wheel shaft; Partly be provided with hermetically-sealed construction at motor spline follower, the sealing structure is: the output face at motor spline follower designs stepped two cylindrical cavities, sealing O shape circle is housed in the cylindrical cavity of minor diameter, sealing O shape circle and back-up ring are housed in large diameter cylindrical cavity, back-up ring blocks O shape circle trim ring and makes O shape circle form tight the contact with the reduction box worm-wheel shaft during assembling, and the while collar is stuck in the draw-in groove of worm-wheel shaft and plays fixation.
Above-mentioned automotive direct current machine with high sealing performance, wherein, described sealing O shape circle adopts thermoplastic elastomer or rubber type of material moulding to make.
Above-mentioned automotive direct current machine with high sealing performance, wherein, the sealing O shape of motor spline follower is enclosed the small column die cavity of the motor spline follower of packing into, and forms interference fit with this small column chamber; The median pore diameter and the reduction box worm-wheel shaft diameter of the sealing O shape circle trim ring of motor spline follower are matched in clearance; Interference fit is adopted in the flange diameter of sealing O shape circle trim ring and the big column chamber of motor spline follower.
Because the utility model has adopted above technical scheme, the sealing O shape circle that uses thermoplastic elastomer or rubber type of material moulding is installed between motor spline follower and reduction box worm-wheel shaft, sealing O shape circle has adopted the cirque structure design, fit by sealing O shape circle trim ring and back-up ring coupling, make O shape circle after the assembling produce and help the deformation of sealing property, thereby stoped water or dust to enter motor internal from the gap of reduction box axle and motor spline follower.
Description of drawings
Concrete outcome of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is an automotive direct current machine overall structure schematic diagram.
To be the utility model automotive direct current machine partly adopt the structural representation (the F-F cutaway view among Fig. 1) of seal approach at the motor spline follower of decelerator to Fig. 2.
Fig. 3 is the enlarged diagram of A part among Fig. 2.
Fig. 4 is the decomposing schematic representation of A part among Fig. 2.
Embodiment
See also Fig. 1.Shown in Figure 1 is the structural representation of automotive direct current machine of the present utility model.Comprise motor component 100 and decelerator parts 200.Partly be provided with hermetically-sealed construction at motor spline follower, the sealing structure is: the output face at motor spline follower designs stepped two cylindrical cavities, sealing O shape circle is housed in first little cylindrical cavity, sealing O shape circle and back-up ring are housed in second big cylindrical cavity, back-up ring blocks O shape circle trim ring and makes O shape circle form tight the contact with the reduction box worm-wheel shaft during assembling, and the while collar is stuck in the draw-in groove of worm-wheel shaft and plays fixation.
See also Fig. 2, Fig. 3.The effect of the worm-wheel shaft 2 of reduction box 3 is to position for the deceleration worm gear, export by motor spline follower 4 after motor torque process worm gear reducer and the buffer buffers, the output face of motor spline follower 4 designs stepped two cylindrical cavities 41,42, the sealing O shape circle 6 that uses thermoplastic elastomer or rubber type of material moulding is housed in the cylindrical cavity 41 of minor diameter, sealing O shape circle trim ring 5 and back-up ring 1 are housed in large diameter cylindrical cavity 42.Fig. 4 is the STRUCTURE DECOMPOSITION figure of motor spline follower, sealing O shape circle trim ring and back-up ring, wherein, and pack into the small column die cavity 41 of motor spline follower and form interference fit of the sealing O shape of motor spline follower circle 6 with the small column chamber; The sealing O shape circle trim ring 5 of motor spline follower is a matched in clearance with reduction box worm-wheel shaft 2 diameters, can not produce the grating of trim ring and reduction box worm-wheel shaft like this when motor moves; The flange of sealing O shape circle trim ring 5 adopts interference fit with the big column chamber 42 of motor spline follower, make deformation while of making O shape circle produce after the trim ring assembling to help sealing property also guaranteed trim ring can be in the cycle of motor fatigue capability the seal approach reliability of this end.Back-up ring 1 is stuck in 21 li of the draw-in grooves of worm-wheel shaft, and its effect is to have controlled the displacement of parts such as worm gear, motor spline follower, sealing O shape circle trim ring at the axial direction of reduction box worm-wheel shaft.Some mechanism design have like this stoped water or dust to enter motor internal from the gap of reduction box axle and motor spline follower.Certainly, the size of these structures or shape can be adjusted according to concrete application.
The utility model stops water or dust to enter motor internal from the gap of reduction box axle and motor spline follower owing to the sealing O shape that use thermoplastic elastomer or rubber type of material moulding are installed between motor spline follower and reduction box worm-wheel shaft is enclosed, the sealing property of motor is improved greatly.
Claims (3)
1, automotive direct current machine comprises motor component and decelerator parts, it is characterized in that, partly is provided with hermetically-sealed construction at the reduction box worm-wheel shaft; The sealing structure is: the output face at motor spline follower designs stepped two cylindrical cavities, sealing O shape circle is housed in the cylindrical cavity of minor diameter, sealing O shape circle and back-up ring are housed in large diameter cylindrical cavity, back-up ring blocks O shape circle trim ring and makes O shape circle form tight the contact with the reduction box worm-wheel shaft during assembling, and the while collar is stuck in the draw-in groove of worm-wheel shaft and plays fixation.
2, the automotive direct current machine with high sealing performance according to claim 1 is characterized in that, described sealing O shape circle adopts thermoplastic elastomer or rubber type of material moulding to make.
3, the automotive direct current machine with high sealing performance according to claim 1 is characterized in that, the sealing O shape of motor spline follower is enclosed the small column die cavity of the motor spline follower of packing into, and forms interference fit with this small column chamber; The median pore diameter and the reduction box worm-wheel shaft diameter of the sealing O shape circle trim ring of assembling rear motor spline follower are matched in clearance; Interference fit is adopted in the flange diameter of sealing O shape circle trim ring and the big column chamber of motor spline follower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110371 CN2772105Y (en) | 2004-11-26 | 2004-11-26 | Automobile direct-current dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110371 CN2772105Y (en) | 2004-11-26 | 2004-11-26 | Automobile direct-current dynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2772105Y true CN2772105Y (en) | 2006-04-12 |
Family
ID=36705888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110371 Expired - Lifetime CN2772105Y (en) | 2004-11-26 | 2004-11-26 | Automobile direct-current dynamo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2772105Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904376A (en) * | 2012-10-09 | 2013-01-30 | 浙江胜华波电器股份有限公司 | Transmission buffer type wiper motor as well as setting and installation method for transmission buffer parts of wiper motor |
| CN110159587A (en) * | 2019-06-24 | 2019-08-23 | 浙江威格泵业有限公司 | A kind of rotor structure |
-
2004
- 2004-11-26 CN CN 200420110371 patent/CN2772105Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904376A (en) * | 2012-10-09 | 2013-01-30 | 浙江胜华波电器股份有限公司 | Transmission buffer type wiper motor as well as setting and installation method for transmission buffer parts of wiper motor |
| CN102904376B (en) * | 2012-10-09 | 2015-09-23 | 浙江胜华波电器股份有限公司 | Transmission buffer type wiper motor and transmission bolster thereof installation method is set |
| CN110159587A (en) * | 2019-06-24 | 2019-08-23 | 浙江威格泵业有限公司 | A kind of rotor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206581747U (en) | A kind of driver of band PUSH PUSH structures | |
| CN202674185U (en) | Small-tooth-difference engagement type gear speed reducer | |
| CN2772105Y (en) | Automobile direct-current dynamo | |
| JP2013203184A (en) | Wiper motor | |
| CN207715644U (en) | A kind of worm and wormwheel gear reduction unit | |
| CN209441178U (en) | A kind of Electric Motor Wheel assembly apparatus and automobile based on embedded deceleration mechanism | |
| CN2747767Y (en) | Automotive d.c dynamo having high sealing performance | |
| CN208614825U (en) | A kind of compact type joint of robot executing agency | |
| CN105705403B (en) | Steering | |
| CN202574349U (en) | Dustproof and waterproof reinforced direction machine | |
| CN205304457U (en) | Waterproof device of motor | |
| CN203416104U (en) | Drive motor of automobile telescopic electric pedal | |
| CN212323931U (en) | Linear motor position detection device | |
| CN204921172U (en) | Electronic throttle | |
| CN107425635A (en) | Integral type brake motor | |
| CN209340135U (en) | A kind of screw pump mechanical seal rinsing system | |
| CN2516748Y (en) | Servo power machine | |
| CN212804084U (en) | Banister drive core drive mechanism | |
| CN201851749U (en) | Plastic electric actuator | |
| CN212358111U (en) | Banister drive core | |
| CN2649433Y (en) | Automobile wiper motor | |
| CN215871054U (en) | Electric push rod | |
| CN205779367U (en) | Hybrid electric vehicle power switching electric oil pump | |
| CN203876817U (en) | 90-degree automobile displacement angle steering device | |
| CN219086958U (en) | Front wiper motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141126 Granted publication date: 20060412 |