CN207000736U - The bicycle drive train system of wheel hub motor combined axis transmission - Google Patents
The bicycle drive train system of wheel hub motor combined axis transmission Download PDFInfo
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- CN207000736U CN207000736U CN201720268514.4U CN201720268514U CN207000736U CN 207000736 U CN207000736 U CN 207000736U CN 201720268514 U CN201720268514 U CN 201720268514U CN 207000736 U CN207000736 U CN 207000736U
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- bearing
- wheel hub
- shaft
- hub motor
- clutch
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 210000003205 muscle Anatomy 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 2
- 210000003739 neck Anatomy 0.000 description 5
- 230000009467 reduction Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
This application discloses a kind of bicycle drive train system of wheel hub motor combined axis transmission, including axis, wheel hub motor and the shaft drive being connected between axis and wheel hub motor, and shaft drive is connected with wheel hub motor junction using cassette, Stability Analysis of Structures, it is easy for installation, service life length.
Description
Technical field
The application is related to electric bicycle field, and in particular to a kind of bicycle drive train of wheel hub motor combined axis transmission
System.
Background technology
Wheel hub electric motor of electric vehicle is all to combine chain drive all the time.Chain is outside, and get rusty easily corrosion, transmission
Unstable chain is easy to fall off, and it is not easy to be frayed to be involved in debris lubrication.These defects add the maintenance cost of bicycle.
In order to increase the maintenance-free of bicycle, emphasis has just been placed on the transmission mechanism of optimization electric bicycle.For
Above mentioned problem, someone devise the shaft drive of no chain to substitute chain gearing.However, existing shaft drive and
The matching structure design of wheel hub motor junction it is not reasonable, that card relates to easily be present.
The application comes therefrom.
The content of the invention
The purpose of the application is：In view of the above-mentioned problems, a kind of bicycle drive train system of wheel hub motor combined axis transmission is proposed,
Its Stability Analysis of Structures, service life length.
The technical scheme of the application is：A kind of bicycle drive train system of wheel hub motor combined axis transmission, including axis, wheel
Hub motor and the shaft drive being connected between axis and wheel hub motor；
The wheel hub motor includes：
Coaxially arranged left half axle and right axle shaft,
Rotation is set in the wheel hub outside the left half axle and right axle shaft,
The rotor and stator being contained in the wheel hub, wherein stator are relatively fixed with the left half axle and right axle shaft,
Coaxial rotating is sheathed on the external sleeve outside the right axle shaft,
The coaxially arranged one-way clutch with the right axle shaft, the one-way clutch include the clutch inner ring to cooperate
And clutch outer, wherein clutch inner ring is fixed with the wheel hub, integrally formed with ring gear in clutch outer, and
The planetary gear reducing mechanism being connected between the rotor and the ring gear；
The shaft drive includes：
First helical gear, it is coaxially fixed on the axis,
Second helical gear, its coaxial fixation are set on the external sleeve,
The 3rd helical gear of connection is engaged with first helical gear,
The 4th helical gear of connection is engaged with second helical gear, and
The power transmission shaft being fixedly and coaxially connected between the 3rd helical gear and the 4th helical gear；
Integrally formed with ratchet on the clutch inner ring, it is provided with the external sleeve：It is connected with the ratchet
Ratchet and the ratchet spring being connected with the ratchet, the ratchet, ratchet and ratchet spring are engaged and form click
One-way clutch.
The application is on the basis of above-mentioned technical proposal, in addition to following preferred scheme：
The connected mode of second helical gear and the external sleeve is：It is coaxially disposed on second helical gear a set of
Connect hole, formed with along its axial linearly extended card muscle on the hole wall of the sleeve joint hole, on the outer wall of the external sleeve formed with
Neck that is linearly extended and matching with the card muscle, the card muscle are embedded in the neck along its length, and the
Set between two helical gears and external sleeve by the jump ring of the two axial locking.
The shaft drive also includes axle sleeve and the frame connecting plate fixed with the axle sleeve, the power transmission shaft pass through branch
Support bearing rotary is arranged in axle sleeve.
Be supported by between the external sleeve and the right axle shaft axially spaced-apart distribution clutch shaft bearing bearing and second
Bearing is supportted, and clutch shaft bearing bearing is located at the axially inner side of the second spring bearing, the clutch shaft bearing bearing and the second support
Bearing includes the bearing inner race and bearing outer ring of rotatable engagement, and movable sleeve, which is provided with, on the right axle shaft is located at the clutch shaft bearing
Bushing between bearing and the second spring bearing and in the external sleeve, the axial inner ends face of the bushing with it is described
The axial outer end face of clutch shaft bearing bearing bearing inner race is connected, and thrust ball bearing with flat seat is coaxially arranged outside the bushing, should
The axial inner ends face of thrust ball bearing with flat seat is resisted against on the ring-shaped step being formed on the liner outer wall axially inwards, described
The axial inner ends face of second spring bearing bearing outer ring is connected with the axial outer end face of the thrust ball bearing with flat seat, described
Connection circlip in external sleeve, the axial outer end face of the jump ring and the second spring bearing bearing outer ring are connected.
The axis is arranged in Five-way tube by the rotation of axis spring bearing, and Five-way tube is stretched out at the axial both ends of axis
Outside, axis and Five-way tube are fixed by axis locking lid axial locking.
The clutch inner ring is locked with the wheel hub by sunk screw.
The planetary gear reducing mechanism includes：
Fixed with the rotor and the central gear coaxially arranged with the right axle shaft,
The planet carrier fixed with the right axle shaft, and
Be rotatably connected at least three planetary gears on the planet carrier；
The planetary gear engages connection with the central gear and the ring gear simultaneously.
The rotor is fixed in a rotating shaft, and the rotating shaft is connected by being arranged at the spring bearing coaxial rotating at its axial both ends
It is connected between the left half axle and right axle shaft, the central gear is directly molded in the rotating shaft.
The wheel hub motor is internal rotor outer stator structure.
The advantages of the application is：
1st, the application drives the traveling of bicycle by way of shaft drive and wheel hub motor combine, and avoids biography
The chain driving of system is easily broken off damaging when in use, accidentally injures user, is stained user's clothing, it is necessary to which that often safeguards asks
Topic.
2nd, the junction of shaft drive and wheel hub motor is designed using special construction, can avoid the junction bearing bearing
Bearing it is inside and outside circle by the axial force to stagger, so as to ensure the structural stability of junction, and then improve the drive system
Service life.
3rd, the wheel hub motor of the drive system uses internal rotor external stator and double reduction structure, simple and ingenious structure, property
Can be stable.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment is further described to the application：
Fig. 1 is the self-contained figure that bicycle drive train is united in the embodiment of the present application；
Fig. 2 is the structural representation of wheel hub motor in the embodiment of the present application；
Fig. 3 is the exploded view of the embodiment of the present application axis drive device；
Fig. 4 is the embodiment of the present application axis drive device and the structural representation of wheel hub motor junction；
Fig. 5 is the structural representation of the embodiment of the present application China and foreign countries female connector cylinder；
Fig. 6 is the second helical gear structural representation in the embodiment of the present application；
Wherein：100- wheel hub motors, 200- axis, 300- shaft drives, 400- Five-way tubes, 500- axis locking lids,
600- axis spring bearings；
101- left half axles, 102- right axle shafts, 103- wheel hubs, 103a- hub shells, 103b- wheel hub end housings, 104- rotors,
105- stators, the external sleeves of 106-, 106a- necks, 107- clutch inner rings, 108- clutch outers, 108a- ring gears,
109- planetary gear reducing mechanisms, 109a- central gears, 109b- planet carriers, 109c- planetary gears, 1010- clutch shaft bearing axles
Hold, the spring bearings of 1011- second, 1012- bushings, 1013- thrusts ball bearing with flat seat, 1014- jump rings, 1015- rotating shafts, 1016-
Locking nut；
The helical gears of 301- first, the helical gears of 302- second, 302a- card muscle, the helical gears of 303- the 3rd, the helical teeth of 304- the 4th
Wheel, 305- power transmission shafts, 306- axle sleeves, 307- frame connecting plates.
Embodiment
Fig. 1 to Fig. 6 shows a specific embodiment of this bicycle drive train of the application system, it include axis 200,
Wheel hub motor 100 and the shaft drive 300 being connected between the axis and the wheel hub motor.
Wheel hub motor 100 is internal rotor outer stator structure, and it mainly includes：Left half axle 101, right axle shaft 102, wheel hub 103,
Rotor 104, stator 105, external sleeve 106, one-way clutch and planetary gear reducing mechanism 109.Wherein：
Left half axle 101 and right axle shaft 102 are coaxially arranged, in practical application, the two is horizontally fixed on electric bicycle
In Rear frame.
Wheel hub 103 is set in outside left half axle 101 and right axle shaft 102 by two spring bearings (not marked in figure) rotation.
Wheel hub 103 is made up of the hub shell 103a and wheel hub end housing 103b being fixed together by sunk screw, hub shell 103a
It is set in by the rotation of one of spring bearing outside left half axle 101, and wheel hub end housing 103b then passes through another spring bearing
Rotation is set in outside right axle shaft 102.In fact, the motor housing of wheel hub 103 namely wheel hub motor 100.
Rotor 104 and stator 105 are contained in wheel hub 103, and wherein stator 105 is relatively fixed with left and right half.
The external coaxial rotating of sleeve 106 is sheathed on outside right axle shaft 102.
One-way clutch and right axle shaft 102 are coaxially arranged, and it is included outside the clutch inner ring 107 and clutch of mutual cooperation
Circle 108, wherein clutch inner ring 107 is fixed by sunk screw and wheel hub 103, integrally formed with interior in clutch outer 108
Gear ring 108a.In the present embodiment, the one-way clutch is freewheel clutch, and it also includes outside clutch inner ring and clutch
Roller and spring between circle.
Planetary gear reducing mechanism 109 is connected between rotor 104 and ring gear 108a.Specifically, the planet tooth
Wheel reducing gear includes：Fixed with rotor 104 and the central gear 109a coaxially arranged with right axle shaft 102, with right axle shaft 102
Fixed planet carrier 109b, and rotatable connection planet carrier on three planetary gear 109c, planetary gear 109c simultaneously with
Central gear 109a and ring gear 108a engagement connections.It can be seen that the planetary gear reducing mechanism 109 is double reduction.
Above-mentioned shaft drive 300 is mainly by the first helical gear 301, the second helical gear 302, the 3rd helical gear the 303, the 4th
Helical gear 304 and power transmission shaft 305 are formed.Wherein：
First helical gear 301 is coaxially fixed on axis 200, and the two can be split-type structural, can also be made of one formula
Structure.
Coaxially fixation is set on external sleeve 106 second helical gear 302.
3rd helical gear 303 engages connection with the first helical gear 301, and the 4th helical gear 304 is nibbled with the second helical gear 302
Close connection.
Power transmission shaft 305 is fixedly connected between the 3rd helical gear 303 and the 4th helical gear 304, and power transmission shaft 305 and
Three helical gears 303 and the 4th helical gear 304 are coaxially arranged, i.e., three is coaxially arranged and interfixes.
During practical application, in the both ends connecting crank of axis 200, and foot-operated, the motor of wheel hub motor 100 is installed on crank
Shell (i.e. above-mentioned wheel hub 103) is coaxially connected with vehicle rear wheel, and left half axle 101 and right axle shaft are horizontally fixed on vehicle frame.Ride
Person tramples foot-operated and rotated by crank handle turns axis 200, and axis 200 drives wheel hub motor by above-mentioned shaft transmission again
100 motor housing (i.e. above-mentioned wheel hub 103) rotates, and band motor vehicle rear wheel rotates and makes vehicle forward wheel hub 103 again.
In order to ensure the structural stability of above-mentioned shaft drive 300 and be easy to the shaft drive 300 on vehicle frame
Installation, while avoid power transmission shaft 305 directly it is exposed potential safety hazard in the environment be present, in order to be also provided with axle sleeve 306 and
The frame connecting plate 307 fixed with the axle sleeve, above-mentioned power transmission shaft 305 by spring bearing rotary setting in axle sleeve 306, vehicle frame
Connecting plate 307 shares two pieces.During practical application, frame connecting plate 307 is fixedly connected on vehicle frame using bolt.Axis 200
It is arranged in by the rotation of axis spring bearing 600 in Five-way tube 400, and the axial both ends of axis 200 are stretched out outside Five-way tube 400,
Axis 200 and Five-way tube 400 are fixed by the axial locking of axis locking lid 500.Axle sleeve 306 is split-type structural, during it includes
Between pipe spreader and be bolted to two sleeve blocks at the pipe spreader both ends.
In the present embodiment, the connected mode of above-mentioned second helical gear 302 and external sleeve 106 is specific as follows：
A sleeve joint hole is coaxially disposed on second helical gear 302, formed with prolonging along its axial straight line on the hole wall of the sleeve joint hole
The card muscle 302a stretched, formed with neck 106a that is linearly extended and matching with the card muscle on the outer wall of external sleeve 106,
Card muscle 302a is embedded in neck 106a along its length, so as to realize that the second helical gear 302 and external sleeve 106 are circumferential solid
It is fixed.And second is set the jump ring (not marked in figure) of the two axial locking between helical gear 302 and external sleeve 106.
Moreover, be supported by between external sleeve 106 and right axle shaft 102 axially spaced-apart distribution clutch shaft bearing bearing 1010 and
Second spring bearing 1011, and clutch shaft bearing bearing 1010 is located at the axially inner side of the second spring bearing 1011.Clutch shaft bearing
The spring bearing 1011 of bearing 1010 and second includes the bearing inner race and bearing outer ring of rotatable engagement, activity on right axle shaft 102
It is arranged with the bushing between the spring bearing 1011 of clutch shaft bearing bearing 1010 and second and in external sleeve 106
1012.The axial inner ends face of bushing 1012 and the axial outer end face of the bearing inner race of clutch shaft bearing bearing 1010 are connected.Bushing
Thrust ball bearing with flat seat 1013 is coaxially arranged outside 1012, the axial inner ends face of the thrust ball bearing with flat seat 1013 axially inwards against
(i.e. formed with ring-shaped step on the outer wall of bushing 1012) on the ring-shaped step being formed on the outer wall of bushing 1012.Second support
The axial inner ends face of the bearing outer ring of bearing 1011 is connected with the axial outer end face of thrust ball bearing with flat seat 1013.External sleeve
Connection circlip 1014 in 106, the axial outer end face of the jump ring 1014 and the bearing outer ring of the second spring bearing 1011 are connected.
Second helical gear 302 is advantageous in that with external sleeve 106 using above-mentioned connected mode：Because of the second helical gear 302
It is helical gear with the 4th helical gear 304, in engaged transmission, the 4th helical gear 304 can apply to the second helical gear 302 along
Two helical gear axis direction inward pressures.The axial force that second helical gear 302 is subject to applies to external sleeve 106, outer female connector
Cylinder 106 is applied to the bearing outer ring of the second spring bearing 1011 by jump ring 1014, and the bearing outer ring of the second spring bearing 1011 is again
Thrust ball bearing with flat seat 1013 is applied to, thrust ball bearing with flat seat 1013 is applied to clutch shaft bearing bearing 1010 by bushing 1012
Bearing inner race, the axially loaded is applied to the (right axle shaft 102 of right axle shaft 102 by the bearing inner race of clutch shaft bearing bearing 1010 again
Being fixed on vehicle frame to move).The inside and outside circle of bearing of clutch shaft bearing bearing 1010 can so be avoided by axially offsetting
Power, while also avoid the inside and outside circle of bearing of the second spring bearing 1011 from being ensured clutch shaft bearing bearing by the power axially offset
1010 and second spring bearing 1011 structure and work stability.
Specific mounting means of the above-mentioned rotor 104 in wheel hub 103 be：Rotor 104 is fixed in a rotating shaft 1015, this turn
Axle 1015 by be arranged at the spring bearing coaxial rotating at its axial both ends be connected to the left half axle 101 and right axle shaft 102 it
Between.Moreover, above-mentioned central gear 109a is directly molded in the rotating shaft 1015.In other words, a circle is formed in the rotating shaft 1015
Axis tooth, this circle axis tooth are above-mentioned central gear 109a.
Above-mentioned clutch shaft bearing bearing 1010 is 6801 bearings, and the second spring bearing 1011 is 16001 bearings.
Certainly, above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to make people much of that
Solution present context is simultaneously implemented according to this, and the protection domain of the application can not be limited with this.It is all according to the application major technique
The equivalent transformation or modification that the Spirit Essence of scheme is done, should all cover within the protection domain of the application.
Claims (9)
1. a kind of bicycle drive train system of wheel hub motor combined axis transmission, including axis (200), wheel hub motor (100) and
The shaft drive (300) being connected between the axis and the wheel hub motor, it is characterised in that
The wheel hub motor (100) includes：
Coaxially arranged left half axle (101) and right axle shaft (102),
Rotation is set in the wheel hub (103) outside the left half axle and right axle shaft,
The rotor (104) and stator (105) being contained in the wheel hub (103), wherein stator (105) and the left half axle
(101) it is relatively fixed with right axle shaft (102),
Coaxial rotating is sheathed on the external sleeve (106) outside the right axle shaft,
The coaxially arranged one-way clutch with the right axle shaft, the one-way clutch include the clutch inner ring to cooperate
(107) fixed with clutch outer (108), wherein clutch inner ring (107) with the wheel hub (103), clutch outer (108)
On integrally formed with ring gear (108a), and
The planetary gear reducing mechanism (109) being connected between the rotor and the ring gear；
The shaft drive (300) includes：
First helical gear (301), it is coaxially fixed on the axis (200),
Second helical gear (302), its coaxial fixation are set on the external sleeve (106),
The 3rd helical gear (303) of connection is engaged with first helical gear (301),
The 4th helical gear (304) of connection is engaged with second helical gear (302), and
The power transmission shaft (305) being fixedly and coaxially connected between the 3rd helical gear and the 4th helical gear；
Integrally formed with ratchet on the clutch inner ring (107), it is provided with the external sleeve (106)：With the ratchet
Connected ratchet and the ratchet spring being connected with the ratchet, the ratchet, ratchet and ratchet spring are engaged and form spine
Take turns ratchet one-way clutch.
2. the bicycle drive train system of wheel hub motor combined axis according to claim 1 transmission, it is characterised in that described the
Two helical gears (302) and the connected mode of the external sleeve (106) are：One is coaxially disposed on second helical gear (302)
Sleeve joint hole, formed with along its axial linearly extended card muscle (302a) on the hole wall of the sleeve joint hole, the external sleeve (106)
Formed with neck (106a) that is linearly extended and matching with the card muscle on outer wall, the card muscle (302a) is along its length
Direction is embedded in the neck (106a), and is set between the second helical gear (302) and external sleeve (106) by the two axially
The jump ring of locking.
3. the bicycle drive train system of wheel hub motor combined axis transmission according to claim 2, it is characterised in that the axle
Transmission device (300) also includes axle sleeve (306) and the frame connecting plate (307) fixed with the axle sleeve, the power transmission shaft (305)
By spring bearing rotary setting in axle sleeve (306).
4. the bicycle drive train system of the wheel hub motor combined axis transmission according to Claims 2 or 3, it is characterised in that institute
State be supported by between external sleeve (106) and the right axle shaft (102) axially spaced-apart distribution clutch shaft bearing bearing (1010) and
Second spring bearing (1011), and clutch shaft bearing bearing (1010) is located at the axially inner side of the second spring bearing (1011), institute
Stating clutch shaft bearing bearing (1010) and the second spring bearing (1011) includes the bearing inner race and bearing outer ring of rotatable engagement, institute
State on right axle shaft (102) movable sleeve be provided between the clutch shaft bearing bearing (1010) and the second spring bearing (1011),
And the bushing (1012) in the external sleeve (106), axial inner ends face and the first axle of the bushing (1012)
The axial outer end face for holding bearing (1010) bearing inner race is connected, and the bushing (1012) is coaxially arranged plane thrust ball axle outside
(1013) are held, the axial inner ends face of the thrust ball bearing with flat seat (1013) is resisted against axially inwards is formed at the bushing (1012)
On ring-shaped step on outer wall, axial inner ends face and the plane thrust ball of the second spring bearing (1011) bearing outer ring
The axial outer end face of bearing (1013) is connected, the interior connection circlip of the external sleeve (106) (1014), the jump ring (1014)
It is connected with the axial outer end face of the second spring bearing (1011) bearing outer ring.
5. the bicycle drive train system of wheel hub motor combined axis transmission according to claim 1, it is characterised in that in described
Axle (200) is arranged in Five-way tube (400) by axis spring bearing (600) rotation, and the axial both ends of axis (200) are stretched out
Five-way tube (400) outside, by axis locking lid (500) axial locking fixed by axis (200) and Five-way tube (400).
6. the bicycle drive train system of wheel hub motor combined axis according to claim 1 transmission, it is characterised in that it is described from
Clutch inner ring (107) is locked with the wheel hub (103) by sunk screw.
7. the bicycle drive train system of wheel hub motor combined axis transmission according to claim 1, it is characterised in that described
Planetary gear reducing mechanism (109) includes：
Fixed and coaxially arranged with the right axle shaft (102) central gear (109a) with the rotor (104),
The fixed planet carrier (109b) with the right axle shaft (102), and
Be rotatably connected at least three planetary gears (109c) on the planet carrier (109b)；
The planetary gear (109c) while engage connection with the central gear (109a) and the ring gear (108a).
8. the bicycle drive train system of wheel hub motor combined axis transmission according to claim 7, it is characterised in that described turn
Sub (104) are fixed in a rotating shaft (1015), and the rotating shaft (1015) is coaxially revolved by being arranged at the spring bearing at its axial both ends
Turn to be connected between the left half axle (101) and right axle shaft (102), the central gear (109a) is directly molded on the rotating shaft
(1015) on.
9. the bicycle drive train system of wheel hub motor combined axis transmission according to claim 1, it is characterised in that the wheel
Hub motor (100) is internal rotor outer stator structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268514.4U CN207000736U (en) | 2017-03-20 | 2017-03-20 | The bicycle drive train system of wheel hub motor combined axis transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720268514.4U CN207000736U (en) | 2017-03-20 | 2017-03-20 | The bicycle drive train system of wheel hub motor combined axis transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207000736U true CN207000736U (en) | 2018-02-13 |
Family
ID=61428640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720268514.4U Expired - Fee Related CN207000736U (en) | 2017-03-20 | 2017-03-20 | The bicycle drive train system of wheel hub motor combined axis transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207000736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828762A (en) * | 2017-03-20 | 2017-06-13 | 苏州八方电机科技有限公司 | The bicycle drive train system of wheel hub motor combined axis transmission |
| CN109194006A (en) * | 2018-09-28 | 2019-01-11 | 浙江江宇电机有限公司 | Motor |
-
2017
- 2017-03-20 CN CN201720268514.4U patent/CN207000736U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828762A (en) * | 2017-03-20 | 2017-06-13 | 苏州八方电机科技有限公司 | The bicycle drive train system of wheel hub motor combined axis transmission |
| CN106828762B (en) * | 2017-03-20 | 2022-04-12 | 八方电气(苏州)股份有限公司 | Bicycle driving system with hub motor combined with shaft transmission |
| CN109194006A (en) * | 2018-09-28 | 2019-01-11 | 浙江江宇电机有限公司 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Suzhou Industrial Park Loufeng town in Jiangsu province and 215000 Road No. 9 Patentee after: BAFANG ELECTRIC (SUZHOU) Co.,Ltd. Address before: Suzhou City Industrial Park Loufeng town and the road of 215122 Jiangsu province No. 9 Patentee before: SUZHOU BAFANG ELECTRIC MOTOR SCIENCE-TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |