CN2052983U - Permanent magnet dc brushless motor with speed reducer - Google Patents
Permanent magnet dc brushless motor with speed reducer Download PDFInfo
- Publication number
- CN2052983U CN2052983U CN 89209457 CN89209457U CN2052983U CN 2052983 U CN2052983 U CN 2052983U CN 89209457 CN89209457 CN 89209457 CN 89209457 U CN89209457 U CN 89209457U CN 2052983 U CN2052983 U CN 2052983U
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- China
- Prior art keywords
- permanent magnet
- shell
- motor
- contained
- axletree
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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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- Permanent Magnet Type Synchronous Machine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a permanent-magnet dc brushless motor which combines with a speed reducer. The permanent-magnet dc brushless motor is designed into a wheeled structure. An auxiliary strip is connected with a rim, so the rear wheel of a bicycle is directly driven. The permanent magnet dc brushless motor with speed reducer cancels the brush of a dc motor and the position sensor of a dc brushless motor, and at the same time the permanent magnet dc brushless motor with speed reducer extends the service life of the motor and enhances operation reliability. The bicycle is less changed, and the bicycle can be change to an electric bicycle by installing the permanent magnet dc brushless motor with speed reducer.
Description
The utility model relates to a kind of non-brush permanent-magnet DC motor with decelerator, is applicable to the occasion that electronic employing bicycle drives.
The drive motors of existing electric bicycle has three kinds: common DC motor; Disc type coiling armature permanent magnet DC motor; The disc type printed winding DC motor.More than three kinds of DC motor all be to adopt brush-commutated structure, the shortcoming of this structure is because brush is long-time and the commutator friction, it is bigger to wear and tear, spark is big when commutating in addition, more enhance faster wear causes often maintenance and changes brush, causes motor short useful life, join decelerator outside needing in addition, could drive bicycle.Cause the car body design complicated, increase cost.
Task of the present utility model is to overcome the above-mentioned shortcoming in the prior art.Design a kind of non-brush permanent-magnet DC motor with decelerator.
The key of solution task is that non-brush permanent-magnet DC motor is combined with decelerator, is designed to wheeled construction.Directly be connected by auxilliary bar, drive bicycle rear with rim.Dc brushless motor has removed the brush-commutated device and the position transducer of direct current machine simultaneously.Controller adopts back-emf to detect and drives, and has simplified the structure of dc brushless motor.Motor housing is that wheeled shell directly is connected with the bicycle rear rim by auxilliary bar.Motor rotates direct drive wheels and rotates.Deducted original mode by the transmission of blockchain bar.When taking turns, then can drive the flywheel that is contained on the hub and drive by original chain as the need Manpower propulsion of bicycle.Because flywheel is housed, so can not drive chain movement during motor-driven.Therefore the motor-driven of bicycle and manpower drive and are independent of each other.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model, among the figure:
1 axletree, 2 nuts, 3 bearings, 4 central gears, 5 planet wheel spindles, 6 planetary wheel carriers, 7 planetary gears, 8 ring gears, 9 end caps, 10 screws, 11 shells, 12 stator cores, 13 stator winding, 14 stator frames, 15 permanent magnets, 16 permanent magnet framves, 17 bearing holder (housing, cover)s, 18 brakes, 19 stator axis, 20 binding post screws, 21 weld tabs, 22 lead-in wires, 23 flat keys.
In conjunction with the accompanying drawings, narrate content of the present utility model:
The utility model as shown in the figure, a side is a planetary reducer in shell.It is by being contained in the central gear 4 on the armature spindle bearing sleeve 17 and being contained in planetary gear 7, the bearing 3 on the planetary wheel carrier 6 that axletree 1 rotates and the ring gear 8 that is contained on the shell end cap 9 is formed.Planetary gear 7 and planet wheel spindle 5 can be made of one or two.Ring gear 8 and shell end cap 9 are made of one or make two and link into an integrated entity by screw 10.Two planetary wheel carriers connect by screw 10, by bearing 3 supportings, rotate around axletree 1 altogether.Mid portion is a non-brush permanent-magnet DC motor.It is made up of stationary part and rotor portion.Can be that internal stator and external rotor are formed, also can be that external stator and internal rotor are formed.Accompanying drawing is the embodiment of external stator and inner rotor core.Stationary part is made up of stator winding 13, stator core 12, stator frame 14, stator axis 19.Stator frame 14 can be made into one with stator axis 19, also can be made into two and is connected as a single entity by screw 10, and stator core 12 and stator frame 14 cooperate for fixed, and stator winding 13 is that the many windings of multiturn are on stator core 12.Stator axis 19 is contained on the axletree 1 and is connected with axletree by flat key 23, rotor portion by permanent magnet 15, permanent magnet frame 16, bearing holder (housing, cover) 17 form, permanent magnet 15, permanent magnet frame 16 and 17 3 of bearing holder (housing, cover)s can make one, also permanent magnet frame 16 and bearing holder (housing, cover) 17 can be made one, again with permanent magnet 15 top loadings, permanent magnet 15 is an annular, and this annular can be integral ring-shaped, also can be the annular that piecemeal is formed, permanent magnet 15 is with axial charging, and magnetic field is many to magnetic field.Permanent magnet 15 is contained on the permanent magnet frame 16 and permanent magnet frame 16 secure fit.Rotor portion is contained on the axletree 1 by bearing 3, and rotates around axletree 1.Bearing holder (housing, cover) 17 is connected as a single entity by screw 10 and central gear 4.Opposite side is the brake part in the shell, and brake 18 can be rise lock or band-type brake form.Accompanying drawing is an expanding brake type.Binding post screw 20 is housed on its end cap, uses so that motor is connected with peripheral control unit.In binding post screw 20 left sides weld tabs 21 is housed.The lead-in wire 22 of stator winding 13 passes stator axis 19 and is welded on the weld tabs 21.Binding post screw 20 passes brake 18 end cap portions timesharing both sides insulation spacer is housed.At motor and decelerator outside wheeled shell 11 and end cap 9 are housed.Shell 11 is connected by screw 10 with end cap 9.The installing hole that has the auxilliary bar of entrucking on the shell 11 is so that car is auxilliary by being connected with rim.Be provided with screw thread on end cap 9 right sides, in order to flywheel to be installed.Shell 11 and end cap 9 by bearings at both ends 3 be installed on the axletree 1, nut 2 is in order to fixed housing 11 and end cap 9.Axletree 1 can be installed on the vehicle frame of bicycle easily.
The stator winding 13 of non-brush permanent-magnet DC motor, connect with the peripheral control unit circuit by binding post screw 20, after the energising, stator winding 13 produces in stator core 12 changes the gyromagnet field, because stator axis 19 is connected and fixed by flat key 23 and axletree 1, then electromagnetism rotating drive p-m rotor drives central gear 4 rotations, is delivered to ring gear 8 by planetary gear 7 and reaches deceleration.Ring gear 8 is contained on the shell end cap 9, and ring gear 8 drives shell 11 and rotates around axletree 1.Thereby reach the purpose that drive wheels is rotated.
Be compared with existing technology, the utility model has the advantage of the brush that removes in the direct current generator and the position sensor in the dc brushless motor. And motor and planetary reducer combined, realized electromechanical integration. Remove brush and position sensor and make electric generator structure simple, be convenient to maintenance, prolonged the service life of motor, improved reliability of operation. Utilize fully the space, dwindled the external dimensions that motor and decelerator cooperate, reduced accessory, reduced slippages, increased effective output. Can only do littler change to bicycle, just can install easily and use.
Claims (3)
1, a kind of non-brush permanent-magnet DC motor with decelerator is made up of shell and the non-brush permanent-magnet DC motor and the planetary reduction gear that are contained in the shell, it is characterized in that:
A, planetary reducer is located at a side in the shell, by the central gear 4 that is contained on the armature spindle bearing sleeve 17, be contained in the planetary gear 7 on the planetary wheel carrier 6, be contained in bearing 3 on the axletree 1 and the ring gear 8 that is contained on the shell end cap 9 and form, two planetary wheel carriers connect by screw 10, by bearing 3 supportings, rotate around axletree 1 altogether
B, in the middle of non-brush permanent-magnet DC motor is located in the shell, form by stationary part and rotor portion, stator frame 14 can be made one with stator axis 19, also can be made into two is connected as a single entity by screw 10, stator core 12 is contained on the stator frame 14, stator winding 13 be the many windings of multiturn on stator core 12, stator axis 19 is contained on the axletree 1, be connected with axletree 1 by flat key 23, rotor portion is by permanent magnet 15, permanent magnet frame 16, and bearing holder (housing, cover) 17 is formed, permanent magnet 15 is an annular, with axial charging, and be many to magnetic field, permanent magnet 15 is contained on the permanent magnet frame 16, rotor portion is contained on the axletree 1 by bearing 3, rotate around axletree 1, armature spindle bearing sleeve 17 is connected as a single entity by screw 10 and central gear 4
C, brake 18 is located at left side in the shell, binding post screw 20 is housed on its end cap, with so that motor be connected with peripheral control unit, on binding post screw 20 right sides weld tabs 21 is housed, the lead-in wire 22 of stator winding 13 passes stator axis 19 and is welded on the weld tabs 21, and the end cap portions branch that binding post screw 20 passes brake 18 is equipped with insulation spacer
D, shell 11 is connected with end cap 9 usefulness screws 10, has the installing hole of the auxilliary bar of entrucking on the shell 11, is provided with screw thread on end cap 9 right sides, and in order to flywheel to be installed, shell 11 and end cap 9 are installed on the axletree 1 by bearings at both ends 3.Nut 2 is in order to fixed housing and end cap 9, and axletree 1 is installed on the cycle frame.
2,, it is characterized in that described planetary gear 7 and planet wheel spindle 5 can be made into one and also can make two respectively according to the motor of claim 1.
3, according to the motor of claim 1, it is characterized in that described permanent magnet 15, permanent magnet frame 16 and armature spindle bearing sleeve 17 can be made one, also permanent magnet frame 16 and bearing holder (housing, cover) 17 can be made one, again with permanent magnet 15 top loadings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89209457 CN2052983U (en) | 1989-09-01 | 1989-09-01 | Permanent magnet dc brushless motor with speed reducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89209457 CN2052983U (en) | 1989-09-01 | 1989-09-01 | Permanent magnet dc brushless motor with speed reducer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2052983U true CN2052983U (en) | 1990-02-14 |
Family
ID=4865983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 89209457 Withdrawn CN2052983U (en) | 1989-09-01 | 1989-09-01 | Permanent magnet dc brushless motor with speed reducer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2052983U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1297763C (en) * | 2003-09-30 | 2007-01-31 | 北京交通大学 | Motor-gear integrated power driver |
CN101719703B (en) * | 2009-12-11 | 2011-08-17 | 大同煤矿集团有限责任公司 | Three-phase alternating current permanent magnet planet rotor magnetic resistance electromotor |
CN102792565A (en) * | 2011-03-07 | 2012-11-21 | Ntn株式会社 | Drive device for electric vehicle |
-
1989
- 1989-09-01 CN CN 89209457 patent/CN2052983U/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1297763C (en) * | 2003-09-30 | 2007-01-31 | 北京交通大学 | Motor-gear integrated power driver |
CN101719703B (en) * | 2009-12-11 | 2011-08-17 | 大同煤矿集团有限责任公司 | Three-phase alternating current permanent magnet planet rotor magnetic resistance electromotor |
CN102792565A (en) * | 2011-03-07 | 2012-11-21 | Ntn株式会社 | Drive device for electric vehicle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |