CN2845291Y - The mini motor of brushless high speed - Google Patents
The mini motor of brushless high speed Download PDFInfo
- Publication number
- CN2845291Y CN2845291Y CN200520116175.5U CN200520116175U CN2845291Y CN 2845291 Y CN2845291 Y CN 2845291Y CN 200520116175 U CN200520116175 U CN 200520116175U CN 2845291 Y CN2845291 Y CN 2845291Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- gear
- motor
- fixed
- wheel hub
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
- B62M11/16—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the ground-wheel hub
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
- B62M6/65—Rider propelled cycles with auxiliary electric motor power-driven at axle parts with axle and driving shaft arranged coaxially
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses the mini motor of a kind of brushless high speed, belong to wheel hub motor.It has main shaft (1), main shaft (1) is gone up by bearing (2) wheel hub shell (3) is installed, in the wheel hub shell (3) motor is installed, motor adopts the internal stator outer-rotor structure, stator (4) is fixed on the main shaft (1), rotor (5) then holds (6) by two gear shafts and is installed on the main shaft (1), main shaft (1) is gone up between this two bearings (6) and is with lining (7), be fixed with the central gear (9) that is enclosed within on the main shaft (1) on the rotor (5), central gear (9) is engaged with planetary gear (10), planetary gear (10) and internal gear (11) engagement that is fixed on the wheel hub shell (3), it is characterized in that described planetary gear (10) is installed on the planet axis (13) by bearing (12), planet axis (13) is fixed on the planetary gear fixed support (14), and planetary gear fixed support (14) then is fixed on the main shaft (1).Have simple in structure, electric efficiency is high, the mechanical wear link reaches advantages such as noise is low less, is particularly suitable for electric bicycle.
Description
Technical field
The utility model relates to the wheel hub motor that a kind of electric bicycle is used.
Background technology
Advantage such as that electric bicycle has is comfortable, light, inexpensive, environmental protection, use cost are low, so it accepts to become many people's walking-replacing tool gradually for consumers in general, and the critical component that influences the electric bicycle rideability is a motor wherein.
Electric bicycle in the market, the overwhelming majority adopts wheel hub motor.Its part includes main shaft, wheel hub shell, motor part, clutch etc.It is by motor part driven wheel hub, and then drive wheels is rotated.Structure from existing wheel hub motor mainly is divided into brushless electric machine and brush motor, and the branch of high-speed electric expreess locomotive and slowspeed machine is wherein arranged again.Brush motor adopts mechanical commutation, and lower to the specification requirement of control system, relative cost is lower than brushless electric machine, and the starting torque of brush motor is slightly larger than brushless electric machine.But fatal weakness is: the life-span is short, noise is big, efficient is low.Its long-term carbon brush serious wear of using, more fragile.Wearing and tearing have simultaneously produced a large amount of carbon dusts, and these dust fall in the gear oil, and it is dry that gear oil is quickened, and noise of motor further increases.Carbon brush in brush motor uses about 1 year and just to need to change, and the mileage that once travels of can finding to charge 2/3rds when buying not as good as new car, and be short of power during climbing, also can burn out controller.This is because behind the motor replacing carbon brush, commutator also has been ground with a groove, and the carbon brush contact area is reduced, and can produce spark and accelerate oxidation commutator and copper sheet after the carbon brush energising of loose contact, causes above-mentioned bad phenomenon.And brushless electric machine replaces mechanical commutation with electronic commutation, the technical brush motor that is better than.Its efficient is at certain current range internal ratio brush motor efficient height, and has the advantages that volume is little, noise is low.We can say that brushless electric machine is the developing direction of electric bicycle from now on certainly.
The brushless electric machine that is applied to electric bicycle in early days is the electric wheel hub of the direct driving of decelerator-free, and its climbing capacity and startup acceleration capacity are relatively poor, and the resistance of electric wheel hub was bigger when motor outage back vehicle slided.For this reason, have the people that it is improved, such as Chinese patent ZL 02219771.0 disclosed " brush DC electric wheel hub ", it has set up decelerator in wheel hub, because decelerator amplifies motor torque, has improved climbing and has started acceleration capacity.
Though compared to brush motor, brushless electric machine has efficient height, volume is little, noise is low characteristics, it does not reach desirable effect at aspects such as electric efficiency, volume control and noise control, still needs further to improve.Such as: on structure, no matter be brush motor or brushless electric machine, wheel hub motor in the market is equipped with one-way clutch, think that clutch is the indispensable parts of wheel hub motor, but, the existence of clutch has increased the link of mechanical wear on the one hand, this certainly will reduce whole efficiency of motor, on the other hand, the also inevitable part power that consumes motor of the frequent operation of clutch, thereby the efficient of reduction wheel hub motor meaninglessly, moreover, clutch is possible owing to mechanical wear causes fault, thereby increases the link that whole wheel hub motor produces fault.For another example: because brushless electric machine adopts external rotor internal stator structure, its rotor by two Bearing Installation on main shaft, therefore be with lining on the main shaft between this two bearings, to prevent the bearing inner race distortion, but, when the existence of this lining makes machine operation, owing between lining and the bearing and the friction between lining and the main shaft and collision produce the noise of bang bang, and this problem is with ride time lengthening and obvious all the more of electric bicycle, this had both allowed the people that rides feel under the weather, and caused the suspection of consumer to motor quality easily.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electric efficiency height, the mini motor of the more simple brushless high speed of structure at above-mentioned prior art present situation.
Another technical problem to be solved in the utility model is further to provide a kind of noise the lower mini motor of brushless high speed at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme of being taked: the mini motor of this brushless high speed, it has main shaft, by Bearing Installation the wheel hub shell is arranged on the main shaft, in the wheel hub shell motor is installed, motor adopts the internal stator outer-rotor structure, stator is fixed on the main shaft, rotor then holds by two gear shafts and is installed on the main shaft, be with lining between this two bearings on the main shaft, be fixed with the central gear that is enclosed within on the main shaft on the rotor, central gear is engaged with planetary gear, planetary gear and the internal gear engagement that is fixed on the wheel hub shell, it is characterized in that described planetary gear by Bearing Installation on planet axis, planet axis is fixed on the planetary gear fixed support, the planetary gear fixed support then is fixed on the main shaft.
Described lining tightens and is with rubbery loop.
The outer ring of described rubbery loop is against on the inwall of described rotor.
Described planetary gear is the nylon straight-tooth gear.
The inner ring of described nylon straight-tooth gear tightly is embedded with the gear iron inserts of ring-type, and this gear iron inserts close-fitting is on described bearing.
We are by discovering, the cancellation clutch does not have adverse influence substantially to the normal use of electric bicycle.Behind the cancellation clutch, just increased the resistance when the promotion electric bicycle retreats a little, but, the promotion electric bicycle retreats the ratio that is taken place in the normal use of electric bicycle extremely low, generally occur over just the situation that electric bicycle is released from the parking stall, and the distance of required implementation is extremely short, usually less than 2 meters.Thereby the cancellation being provided with of clutch be feasible fully, it is not the indispensable parts of wheel hub motor.
Compared with prior art, advantage of the present utility model is: 1, the mini motor of the brushless high speed of the utility model has been cancelled clutch, thereby wheel hub motor is in rotary work, the wheel hub shell need not to drive by clutch, make the wheel hub rotation but directly drive internal gear by planetary gear, thereby reduced when using clutch because of the consumption of the frequent operation of the mechanical wear of clutch and clutch to power of motor, improved the efficient of wheel hub motor, it is about 3% that efficient can improve, and the normal use of electric bicycle is not had adverse effect substantially; 2, the utility model no-clutch, and clutch is possible owing to mechanical wear causes fault, so the utility model has reduced the link that whole wheel hub motor produces fault.3, the utility model has increased the rubber lasso, its on the one hand can the relative fixed lining the position, make between lining and the main shaft to keep certain clearance, thereby reduced lining and be located between the bearing at these lining two ends and friction and collision between lining and the main shaft, thereby reduced noise; On the other hand, even lining and be located between the bearing at these lining two ends and friction taken place or collision between lining and the main shaft, also the sound deadening that has because of this rubber lasso is close in nothing the noise of generation; And the effect of this two aspect can not subdued because of the ride prolongation of time of electric bicycle substantially, thereby can guarantee wheel hub motor long-lasting aspect noise control.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the utility model embodiment.
Specific embodiment
Below in conjunction with embodiment the utility model is described in further detail.
As shown in Figure 1, be a preferred embodiment of the present utility model.As shown in Figure 1, the mini motor of the described brushless high speed of present embodiment, it has main shaft 1, holds 2 by two gear shafts on the main shaft 1 wheel hub shell 3 is installed.Wheel hub shell 3 is made of hub shell 301 and wheel hub end housing 302.In the wheel hub shell 3 motor is installed, motor adopts the internal stator outer-rotor structure.Stator 4 is made of stator fixed mount 401, stator punching 402, armature winding 403 etc.Rotor 5 is made of rotor case 501, magnet steel 502, rotor fixed mount 503 etc.Stator 4 is fixed on the main shaft 1, and rotor 5 then holds 6 by two gear shafts and is installed on the main shaft 1, is with lining 7 between this two bearings 6 on the main shaft 1.Lining 7 tightens and is with rubbery loop 8, and the outer ring of this rubbery loop 8 is against on the inwall of rotor 5.Be fixed with the central gear 9 that is enclosed within on the main shaft 1 on the rotor 5, central gear 9 is engaged with three planetary gears 10.Planetary gear 10 and internal gear 11 engagements that are fixed on the wheel hub shell 3, planetary gear 10 is installed on the planet axis 13 by bearing 12, and planet axis 13 is fixed on the planetary gear fixed support 14, and planetary gear fixed support 14 then is fixed on the main shaft 1.Described planetary gear 10 is the nylon straight-tooth gear, and the inner ring of this nylon straight-tooth gear tightly is embedded with the gear iron inserts 1001 of ring-type, and 1001 close-fittings of this gear iron inserts are on bearing 12.
Claims (5)
1, the mini motor of a kind of brushless high speed, it has main shaft (1), main shaft (1) is gone up by bearing (2) wheel hub shell (3) is installed, in the wheel hub shell (3) motor is installed, motor adopts the internal stator outer-rotor structure, stator (4) is fixed on the main shaft (1), rotor (5) then holds (6) by two gear shafts and is installed on the main shaft (1), main shaft (1) is gone up between this two bearings (6) and is with lining (7), be fixed with the central gear (9) that is enclosed within on the main shaft (1) on the rotor (5), central gear (9) is engaged with planetary gear (10), planetary gear (10) and internal gear (11) engagement that is fixed on the wheel hub shell (3), it is characterized in that described planetary gear (10) is installed on the planet axis (13) by bearing (12), planet axis (13) is fixed on the planetary gear fixed support (14), and planetary gear fixed support (14) then is fixed on the main shaft (1).
2, the mini motor of brushless high speed according to claim 1 is characterized in that described lining (7) tightens to be with rubbery loop (8).
3, the mini motor of brushless high speed according to claim 2 is characterized in that the outer ring of described rubbery loop (8) is against on the inwall of described rotor (5).
4,, it is characterized in that described planetary gear (10) is the nylon straight-tooth gear according to claim 1 or the mini motor of 2 or 3 described brushless high speeds.
5, the mini motor of brushless high speed according to claim 4 is characterized in that the inner ring of described nylon straight-tooth gear tightly is embedded with the gear iron inserts (1001) of ring-type, and this gear iron inserts (1001) close-fitting is on described bearing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520116175.5U CN2845291Y (en) | 2005-10-25 | 2005-10-25 | The mini motor of brushless high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520116175.5U CN2845291Y (en) | 2005-10-25 | 2005-10-25 | The mini motor of brushless high speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845291Y true CN2845291Y (en) | 2006-12-06 |
Family
ID=37487233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520116175.5U Expired - Lifetime CN2845291Y (en) | 2005-10-25 | 2005-10-25 | The mini motor of brushless high speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845291Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324826A (en) * | 2011-10-09 | 2012-01-18 | 常州高尔登科技有限公司 | Brushless direct current hub motor |
| CN102529570A (en) * | 2010-12-24 | 2012-07-04 | 株式会社岛野 | Internal motorized bicycle hub |
| CN102570713A (en) * | 2012-02-28 | 2012-07-11 | 常州五王电机有限公司 | Brushless planetary speed reduction hub motor |
| CN103548245A (en) * | 2011-05-23 | 2014-01-29 | 本田技研工业株式会社 | Drive device for vehicle with electric motor |
| WO2015154402A1 (en) * | 2014-04-11 | 2015-10-15 | 苏州八方电机科技有限公司 | Electric bicycle wheel hub motor |
| WO2015154400A1 (en) * | 2014-04-11 | 2015-10-15 | 苏州八方电机科技有限公司 | Electric bicycle wheel hub motor device |
| CN105846593A (en) * | 2016-04-19 | 2016-08-10 | 上官希坤 | Miniature speed-reducing wheel hub motor |
| CN110469638A (en) * | 2019-09-18 | 2019-11-19 | 高阳县恩诺新能源科技有限公司 | A kind of brushless planet suppression driver for electric seeder |
| CN110994872A (en) * | 2019-12-05 | 2020-04-10 | 安徽德科电气科技有限公司 | Low-voltage generator with formed coil |
| EP3799272A1 (en) * | 2019-09-27 | 2021-03-31 | LG Electronics Inc. | Geared in-wheel motor |
-
2005
- 2005-10-25 CN CN200520116175.5U patent/CN2845291Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102529570A (en) * | 2010-12-24 | 2012-07-04 | 株式会社岛野 | Internal motorized bicycle hub |
| CN102529570B (en) * | 2010-12-24 | 2014-10-22 | 株式会社岛野 | internal motorized bicycle hub |
| CN103548245A (en) * | 2011-05-23 | 2014-01-29 | 本田技研工业株式会社 | Drive device for vehicle with electric motor |
| CN103548245B (en) * | 2011-05-23 | 2016-10-12 | 本田技研工业株式会社 | Drive device for vehicle with electric motor |
| CN102324826A (en) * | 2011-10-09 | 2012-01-18 | 常州高尔登科技有限公司 | Brushless direct current hub motor |
| CN102570713A (en) * | 2012-02-28 | 2012-07-11 | 常州五王电机有限公司 | Brushless planetary speed reduction hub motor |
| WO2015154402A1 (en) * | 2014-04-11 | 2015-10-15 | 苏州八方电机科技有限公司 | Electric bicycle wheel hub motor |
| WO2015154400A1 (en) * | 2014-04-11 | 2015-10-15 | 苏州八方电机科技有限公司 | Electric bicycle wheel hub motor device |
| CN105846593A (en) * | 2016-04-19 | 2016-08-10 | 上官希坤 | Miniature speed-reducing wheel hub motor |
| CN110469638A (en) * | 2019-09-18 | 2019-11-19 | 高阳县恩诺新能源科技有限公司 | A kind of brushless planet suppression driver for electric seeder |
| EP3799272A1 (en) * | 2019-09-27 | 2021-03-31 | LG Electronics Inc. | Geared in-wheel motor |
| CN110994872A (en) * | 2019-12-05 | 2020-04-10 | 安徽德科电气科技有限公司 | Low-voltage generator with formed coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061206 |
|
| EXPY | Termination of patent right or utility model |