CN207141296U - Torque detection transmission device and electric bicycle power-assisted middle motor applying same - Google Patents
Torque detection transmission device and electric bicycle power-assisted middle motor applying same Download PDFInfo
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- CN207141296U CN207141296U CN201720692358.4U CN201720692358U CN207141296U CN 207141296 U CN207141296 U CN 207141296U CN 201720692358 U CN201720692358 U CN 201720692358U CN 207141296 U CN207141296 U CN 207141296U
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- umbrella tooth
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- pressure sensor
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Abstract
The utility model relates to a motor is put in torque detection transmission and device's electric bicycle helping hand of using thereof, torque detection transmission includes central bevel gear frame, a left side, right side bevel gear, spline arch and pressure sensor, central bevel gear and right side bevel gear, left side bevel gear meshing, it is protruding to be equipped with the spline on the left side bevel gear, the spline arch touches with pressure sensor and meets, detect and export and bear the corresponding resistance change signal of moment on the left side bevel gear through pressure sensor, constitute torque detection transmission. A torque detection transmission device is arranged on a main shaft of a power-assisted middle motor of the electric bicycle. The torque detection transmission device has the advantages that 1/2 of the pedaling torque of a rider is generated by preventing the left-side bevel gear from rotating, the left-side bevel gear rotation stopping torque is opposite in direction, a resistance change signal corresponding to the bearing torque on the left-side bevel gear is detected and output through the pressure sensor, the resistance change signal is provided for the controller, and the pedaling torque of the rider can be accurately measured.
Description
Technical field
The utility model belongs to assisted electric bicycle built-in motor, more particularly to a kind of moment inspecting transmission device and its
Using the electric bicycle power-assisted built-in motor of the device.
Background technology
At present, electric bicycle power-assisted built-in motor can be divided into two kinds by power-assisted mode.One kind is put in velocity profile power-assisted
Motor, the speed trampled according to bicyclist estimate bicyclist's working power, and then controlled motor power-assisted power indirectly.Speed helps
Power mode is simple in construction, cost is low, but power-assisted effect is poor.Another kind is put in the torque type power-assisted using torque detection means
Motor, according to bicyclist's pedal force, bicyclist's working power and intention of riding is calculated exactly, is well matched with motor power-assisted work(
Rate, realize that optimal power-assisted is ridden effect.Known torque detection means, cyclist can be extrapolated by the torque of operating pedal
Power.The power of the cyclist or an amount that can intend in contrast to this are used as an electronic additional drives of electric bicycle
The input quantity of the regulation of device.It is all that used sensor can be disposed directly on exposed position and be fixed on transmission
On the part of torque.Thus they are especially sensitive to failure.It is larger volume to be present in moment-assistant sensor, easily break down and
Expensive three big shortcoming of grade.Therefore the torque type power-assisted built-in motor of in the market is all bulky, weight weighs and price,
It is unfavorable for popularizing.Patent document CN201180022732 discloses a kind of transmission device for Torque test of electric bicycle
And the accompanying method and patent document CN201210564402 for Torque test of electric bicycle disclose and a kind of use
In the crank gear of bicycle, including：One pedal shaft, for two pedals to be installed in the free end of pedal shaft；
One driven pulley for being used to transfer force on a wheel of bicycle；One has a sun gear, a gear ring, at least one
The planetary transmission of individual planetary gear and a planet stent, wherein, the planet stent is rotationally fixedly fixed on pedal shaft
On；With a sensor for being arranged on support torque on gear ring, for obtaining gear ring.Above-mentioned technical proposal realizes raising
Reliability, the purpose for reducing cost, but volume increases on the contrary.Motor approximate size be length × width x thickness=230 × 140 ×
100mm is heavier, it is impossible to meet miniaturization, the light-weighted market demand.Reduce motor size has been turned into sharp marketing
A problem urgently to be resolved hurrily in the industry.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provide a kind of moment inspecting transmission device and its
Using the electric bicycle power-assisted built-in motor of the device, using torque type power-assisted mode on the premise of, not only sensor is reliable
Property improve, cost reduce and significantly reduce overall dimensions, torque type built-in motor outside diameter accomplishes φ 100-105mm.
The utility model to achieve the above object, using following technical scheme：A kind of moment inspecting transmission device, its feature
It is：Including center umbrella tooth frame, left and right side umbrella tooth, rotation stop be raised and pressure sensor, uniform on the center umbrella tooth frame and slide
2-4 center umbrella tooth is connected with, the center umbrella tooth engages with right side umbrella tooth, left side umbrella tooth respectively, outside the left side of left side umbrella tooth
Circle is provided with rotation stop projection, and rotation stop projection touches with pressure sensor, prevents generation bicyclist's pedal force after the umbrella tooth rotation of left side
1/2 and left side umbrella tooth rotation stop torque in opposite direction of square, are detected by pressure sensor and exported with being born in the umbrella tooth of left side
The corresponding resistance variations signal of torque, form moment inspecting transmission device.
The pressure sensor includes elastomer and foil gauge, and elastomer is fixed in the end cap of left side or be fixed in main shell
On, surface of elastomer is pasted with foil gauge.
Center umbrella tooth frame ring is set with the center umbrella tooth frame.
A kind of electric bicycle power-assisted built-in motor using moment inspecting transmission device, it is characterized in that：Including stator, turn
Son, main shaft, main shell, left end cap, right end cap, the main shaft left end is by being fixed on the left end cap spring bearing branch of left end cap
Support, main shaft right-hand member cover spring bearing support by being fixed on the power output that power output covers, and the rotor is fixed in eccentric shaft
On, eccentric shaft has planetary gear by Supporting Planetary Gears bearings, and the planetary gear engages with ring gear, in ring gear
Side and motor side freewheel clutch are affixed, and ring gear is cylindrical to constrain disk spring bearing and bearing pin constraint disk branch by bearing pin
Support, bearing pin constraint disk is cylindrical with affixed on the inside of main shell, and motor side freewheel clutch is unidirectionally slidably connected with power output set,
Power output set covers spring bearing by power output and is supported on main shaft, and the bearing pin constrainer discs are provided with some pin shaft holes,
Grafting and the affixed bearing pin of planetary gear, the main shaft are provided with moment inspecting transmission device, moment inspecting in the pin shaft hole
Transmission device includes center umbrella tooth frame, left and right side umbrella tooth, rotation stop projection and pressure sensor, the main shaft and passes through right side umbrella tooth
Spring bearing support right side umbrella tooth, the right side umbrella tooth are supported by eccentric shaft spring bearing and eccentric shaft, and main shaft passes through left side
Umbrella tooth spring bearing support left side umbrella tooth, center umbrella tooth frame and main shaft are bonded, on the center umbrella tooth frame uniformly and be slidably connected
There is center umbrella tooth, the center umbrella tooth is engaged with right side umbrella tooth, left side umbrella tooth respectively, and the left side of left side umbrella tooth is cylindrical to be provided with only
Turn projection, rotation stop projection touches with pressure sensor, detects and exported with bearing torque in the umbrella tooth of left side by pressure sensor
Corresponding resistance variations signal.
The pressure sensor includes elastomer and foil gauge, and elastomer is fixed in the end cap of left side or be fixed in main shell
On, surface of elastomer is pasted with foil gauge.
Center umbrella tooth frame ring is set with the center umbrella tooth frame.
The right side umbrella tooth, left side umbrella tooth and center umbrella tooth frame end face are respectively equipped with right side umbrella tooth side block bearing, center umbrella
Side block bearing, center umbrella tooth frame right side side block bearing and left side umbrella tooth side block bearing on the left of braces.
The T-shaped multidiameter structure of planetary gear, toothed disc forms overall planetary gear with planetary gear disk, described
Uniformly some bearing pins, bearing pin constrain disk grafting with bearing pin for planetary gear disk end face.
The bearing pin of the planetary gear disk is fixed on planetary gear disk end face, and pin slide is connected with pin sleeve,
The pin sleeve rolls connection in the pin shaft hole of bearing pin constraint disk.
Beneficial effect:Compared with prior art, moment inspecting transmission device of the present utility model is by preventing left side umbrella tooth
Rotation, and generate and trample the identical and in opposite direction left side umbrella tooth turning moment of torque size with bicyclist, pass through pressure sensing
Device is detected and exported bears the resistance variations signal of torque in the umbrella tooth of left side, using resistance variations signal be supplied to controller as with
Bicyclist tramples the corresponding input signal of torque, can accurately measure bicyclist and trample torque, rapid to understand bicyclist's
Riding condition and intention, power-assisted power can be well matched with, realize optimal power-assisted effect.
Using on the premise of torque type power-assisted mode, not only the reliability of sensor improves and meanwhile motor cost significantly
Reduce.Torque type built-in motor overall dimensions significantly reduce, and its outside diameter can accomplish φ 100-105mm.Compared to existing
Technology, the nearly 50%-60% of volume-diminished, miniaturization, light weight effect clearly, optimal group are realized in terms of performance and outward appearance
Close.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model moment inspecting transmission device；
Fig. 2 is the longitudinal sectional view of electric bicycle power-assisted built-in motor embodiment 1；
Fig. 3 is Fig. 2 A-A to sectional view；
Fig. 4 is the right oblique view of transmission mechanism explosive view of embodiment 1；
Fig. 5 is the left oblique view of transmission mechanism explosive view of embodiment 1；
Fig. 6 is the longitudinal sectional view of electric bicycle power-assisted built-in motor embodiment 2；
Fig. 7 is the transmission mechanism explosive view of embodiment 2.
In figure：1st, main shaft, 2, stator, 3, magnet, 4, rotor, 4-1, eccentric shaft, 5, bearing on the left of rotor supports, 6, eccentric
Axle spring bearing, 7, Supporting Planetary Gears bearing, 8, planetary gear, 8-1, planetary gear disk, 9, bearing pin, 10, pin sleeve,
11st, bearing pin constraint disk, 11-1, counterbore, 12, ring gear, 13, motor side freewheel clutch, 14, power output set, 15, main shaft
Side freewheel clutch, 16, right side umbrella tooth, 17, right side umbrella tooth spring bearing, 18, center umbrella tooth, 19, center umbrella tooth frame, 19-1,
Center umbrella tooth frame ring, 20, left side umbrella tooth, 21, left side umbrella tooth spring bearing, 22, rotation stop it is raised, 23, elastomer, 24, foil gauge,
25th, left end cap, 26, left end cap spring bearing, 27, left side umbrella tooth side block bearing, 28, side block bearing on the left of the umbrella tooth frame of center, 29,
Side block bearing on the right side of center umbrella tooth frame, 30, right side umbrella tooth side block bearing, 31, power output set spring bearing, 32, right end cap,
33rd, right end cap spring bearing, 34, main shell, 35, bearing pin constraint disk spring bearing, 36, balance weight, 37, ball, 38, pad
Circle, 39, chain wheel, 40, controller, 41, rotor gear, 42, bearing on the left of rotor supports, bearing on the right side of 42-1, rotor supports,
43rd, transition wheel gear wheel, 43-1, transition wheel little gear, 44, transition wheel support left side bearing, 44-1, transition wheel support right-hand axis
Hold, 45, driven gear wheel.
Embodiment
Specific embodiment of the present utility model is described in detail with reference to preferred embodiment.
Accompanying drawing is referred to, present embodiments provides a kind of moment inspecting transmission device, including center umbrella tooth frame 19, left and right side
Umbrella tooth 20,16, rotation stop projection 22 and pressure sensor, it is uniform on the center umbrella tooth frame and slidably connect 2-4 center umbrella
Tooth, the center umbrella tooth 18 engage with right side umbrella tooth, left side umbrella tooth respectively, and the left side of left side umbrella tooth is cylindrical to be provided with rotation stop projection
22, rotation stop projection is touched with pressure sensor, and 1/2 and direction phase that bicyclist tramples torque are generated after preventing left side umbrella tooth rotation
Anti- left side umbrella tooth rotation stop torque, detected by pressure sensor and export resistance change corresponding with bearing torque in the umbrella tooth of left side
Change signal, form moment inspecting transmission device.Center umbrella tooth frame ring is set with the center umbrella tooth frame, center umbrella can be prevented
Tooth radial-play.
Pressure sensor described in the present embodiment includes elastomer 23 and foil gauge 24, elastomer be fixed in the end cap of left side or
It is fixed on main shell, surface of elastomer is pasted with foil gauge.Pressure sensor can use semiconductor transducer, semiconductor pressure
Resistor-type etc..
Embodiment 1
A kind of electric bicycle power-assisted built-in motor using moment inspecting transmission device, including stator 2 are equipped with magnet 3
Rotor 4, main shaft 1, main shell 34, left end cap 25, right end cap 32, the main shaft is respectively by being fixed on the left end cap branch of left end cap
Bearing 26 is supportted, main shaft right-hand member covers spring bearing support by being fixed on the power output that power output covers, and the rotor is fixed in
On eccentric shaft, eccentric shaft has planetary gear by Supporting Planetary Gears bearings, and the planetary gear engages with ring gear, interior
Affixed with motor side freewheel clutch on the inside of gear ring, ring gear is cylindrical to constrain disk spring bearing and bearing pin restrained circle by bearing pin
Disk supports, and bearing pin constraint disk is cylindrical with affixed on the inside of main shell, and motor side freewheel clutch covers unidirectional slide with power output
Connection, power output set cover spring bearing by power output and are supported on main shaft, and the bearing pin constrainer discs are provided with some pins
Axis hole, grafting and the affixed bearing pin of planetary gear, the main shaft are provided with moment inspecting transmission device, torque in the pin shaft hole
Detect transmission device and pass through right side including center umbrella tooth frame, left and right side umbrella tooth, rotation stop projection and pressure sensor, the main shaft
Umbrella tooth spring bearing support right side umbrella tooth, the right side umbrella tooth are supported by eccentric shaft spring bearing and eccentric shaft, and main shaft passes through
Left side umbrella tooth spring bearing support left side umbrella tooth, center umbrella tooth frame and main shaft are bonded, and 3 are slidably connected on the center umbrella tooth frame
Individual center umbrella tooth, the center umbrella tooth are engaged with right side umbrella tooth, left side umbrella tooth respectively, and the left side of left side umbrella tooth is cylindrical to be provided with only
Turn projection, rotation stop projection touches with pressure sensor, detects and exported with bearing torque in the umbrella tooth of left side by pressure sensor
Corresponding resistance variations signal.Pressure sensor is fixedly connected on left end cap, and pressure sensor is connected with controller 40, rotor
On be connected with balance weight 36, be provided with ball 37 between rotor end-face and eccentric shaft spring bearing 6, set on the outside of eccentric shaft spring bearing
There is packing ring 38, power output set is linked with chain wheel 39.
The preferred scheme of the present embodiment is that the right side umbrella tooth, left side umbrella tooth and center umbrella tooth frame end face are respectively equipped with the right side
Side block bearing 28, center umbrella tooth frame right side side block bearing 29 and left side umbrella tooth on the left of side umbrella tooth side block bearing 30, center umbrella tooth frame
Side block bearing 27, it is possible to reduce right side umbrella tooth, left side umbrella tooth and center umbrella tooth frame end-face friction and prevent axial float.
The preferred scheme of the present embodiment is the T-shaped multidiameter structure of planetary gear, toothed disc and planetary gear disk
Overall planetary gear is formed, uniformly some bearing pins, bearing pin constrain disk grafting with bearing pin for the planetary gear disk end face.It is described
The bearing pin of planetary gear disk is fixed on planetary gear end face, and pin slide is connected with pin sleeve 10, and the pin sleeve is in pin
Connection is rolled in the pin shaft hole of axle constraint disk.
Embodiment 2
The present embodiment is the conventional structure built-in motor using two-stage speed change form, and main shaft passes through right side umbrella tooth spring bearing
Support right side umbrella tooth, main shaft support left side umbrella tooth by left side umbrella tooth spring bearing, and center umbrella tooth frame and main shaft are bonded, in described
3 center umbrella tooths are slidably connected on heart umbrella tooth frame, the center umbrella tooth engages with right side umbrella tooth, left side umbrella tooth respectively, left side
The cylindrical rotation stop that is provided with the left side of umbrella tooth is raised, and rotation stop projection touches with pressure sensor, is detected by pressure sensor and defeated
Go out resistance variations signal corresponding with bearing torque in the umbrella tooth of left side.Pressure sensor is fixedly connected on main shell, pressure sensing
Device is connected with controller 40.
The course of work and principle
Bicyclist's pushes pedals, main shaft and the rotation of center umbrella tooth frame are driven, and drive center umbrella tooth synchronous rotary, center umbrella
Tooth engages simultaneously with left side umbrella tooth and right side umbrella tooth, and elastomer is fixed in left side end cap, and the rotation stop being fixed in the umbrella tooth of left side is convex
Rising and blocked by elastomer, left side umbrella tooth is locked, and power is exported by right side umbrella tooth, because the left and right umbrella tooth number of teeth is identical, root
According to active force and reaction force principle and dynamic balance relation, umbrella tooth each Moment in left and right is that bicyclist tramples the 1/2 of torque.Patch
The change of strain sheet resistance loaded on surface of elastomer and bicyclist form linear relationship, resistance variations between trampling torque
Signal be supplied to controller as with bicyclist's input signal that to trample torque corresponding, trampled so as to accurately measure bicyclist
Torque, therefore the riding condition and intention of bicyclist are understood exactly, power-assisted power can be well matched with, realizes optimal help
Power effect.
Eccentric shaft gives planetary gear input power, and planetary gear engages with internal gear, planetary bearing pin insertion left side
The pin shaft hole of main shaft, and the structure being made up of freewheel clutch output power.
Accompanying drawing is referred to, when rotor drive eccentric shaft turns clockwise, the bearing pin and guide that are fixed in planetary gear disk are inserted
Enter into bearing pin constraint disk counterbore, and bearing pin constraint disk is affixed fixed with main shell, has limited planetary
Spinning motion, planetary gear in ring gear can only centered on eccentric shaft, eccentric throw be revolution-radius make it is clockwise
Revolution motion；Again due to the planetary gear number of teeth 3 teeth fewer than the ring gear number of teeth, ring gear is forced to make low speed rotation clockwise.This
When ring gear low speed rotation speed reducing ratio be：Planetary gear Z1=49, ring gear Z2=52, speed reducing ratio i=Z2/ (Z2-Z1)=52/
(52-49)=17.3.
Gearratio is positive number, i.e., main shell direction of rotation is identical with eccentric shaft direction of rotation.Power output part is internal tooth
Circle, slowly running clockwise for ring gear are delivered to power output set by freewheel clutch, drive chain wheel.In order to eliminate bias
Caused vibration, balance weight is installed on rotor, ensures dynamic balancing
The above-mentioned electric bicycle power-assisted with reference to embodiment to a kind of moment inspecting transmission device and its application device
The detailed description that built-in motor is carried out, is illustrative rather than limited, can include several according to limited scope
Embodiment, therefore changing and modifications in the case where not departing from the utility model general plotting, should belong to the scope of protection of the utility model
Within.
Claims (9)
1. a kind of moment inspecting transmission device, it is characterized in that：Including center umbrella tooth frame, left and right side umbrella tooth, rotation stop projection and pressure
Sensor, it is uniform on the center umbrella tooth frame and slidably connect 2-4 center umbrella tooth, the center umbrella tooth respectively with right side umbrella
Tooth, the engagement of left side umbrella tooth, the cylindrical rotation stop that is provided with the left side of left side umbrella tooth is raised, and rotation stop projection touches with pressure sensor, hinders
Only generation bicyclist tramples 1/2 and left side umbrella tooth rotation stop torque in opposite direction of torque after the rotation of left side umbrella tooth, passes through pressure
Sensor detects and exports resistance variations signal corresponding with bearing torque in the umbrella tooth of left side, forms moment inspecting transmission device.
2. moment inspecting transmission device according to claim 1, it is characterized in that：The pressure sensor include elastomer and
Foil gauge, elastomer are fixed in the end cap of left side or are fixed on main shell, and surface of elastomer is pasted with foil gauge.
3. moment inspecting transmission device according to claim 1, it is characterized in that：Center is set with the center umbrella tooth frame
Umbrella tooth frame ring.
4. a kind of electric bicycle power-assisted built-in motor using moment inspecting transmission device, it is characterized in that：Including stator, turn
Son, main shaft, main shell, left end cap, right end cap, the main shaft left end is by being fixed on the left end cap spring bearing branch of left end cap
Support, main shaft right-hand member cover spring bearing support by being fixed on the power output that power output covers, and the rotor is fixed in eccentric shaft
On, eccentric shaft has planetary gear by Supporting Planetary Gears bearings, and the planetary gear engages with ring gear, in ring gear
Side and motor side freewheel clutch are affixed, and ring gear is cylindrical to constrain disk spring bearing and bearing pin constraint disk branch by bearing pin
Support, bearing pin constraint disk is cylindrical with affixed on the inside of main shell, and motor side freewheel clutch is unidirectionally slidably connected with power output set,
Power output set covers spring bearing by power output and is supported on main shaft, and the bearing pin constrainer discs are provided with some pin shaft holes,
Grafting and the affixed bearing pin of planetary gear, the main shaft are provided with moment inspecting transmission device, moment inspecting in the pin shaft hole
Transmission device includes center umbrella tooth frame, left and right side umbrella tooth, rotation stop projection and pressure sensor, the main shaft and passes through right side umbrella tooth
Spring bearing support right side umbrella tooth, the right side umbrella tooth are supported by eccentric shaft spring bearing and eccentric shaft, and main shaft passes through left side
Umbrella tooth spring bearing support left side umbrella tooth, center umbrella tooth frame and main shaft are bonded, on the center umbrella tooth frame uniformly and be slidably connected
There is center umbrella tooth, the center umbrella tooth is engaged with right side umbrella tooth, left side umbrella tooth respectively, and the left side of left side umbrella tooth is cylindrical to be provided with only
Turn projection, rotation stop projection touches with pressure sensor, detects and exported with bearing torque in the umbrella tooth of left side by pressure sensor
Corresponding resistance variations signal.
5. the electric bicycle power-assisted built-in motor according to claim 4 using moment inspecting transmission device, its feature
It is：The pressure sensor includes elastomer and foil gauge, and elastomer is fixed in the end cap of left side or is fixed on main shell, bullet
Elastomeric surface is pasted with foil gauge.
6. the electric bicycle power-assisted built-in motor according to claim 4 using moment inspecting transmission device, its feature
It is：Center umbrella tooth frame ring is set with the center umbrella tooth frame.
7. the electric bicycle power-assisted built-in motor according to claim 4 using moment inspecting transmission device, its feature
It is：It is left that the right side umbrella tooth, left side umbrella tooth and center umbrella tooth frame end face are respectively equipped with right side umbrella tooth side block bearing, center umbrella tooth frame
Side block bearing and left side umbrella tooth side block bearing on the right side of side side block bearing, center umbrella tooth frame.
8. the electric bicycle power-assisted built-in motor according to claim 4 using moment inspecting transmission device, its feature
It is：The T-shaped multidiameter structure of planetary gear, toothed disc form overall planetary gear, the planet with planetary gear disk
Uniformly some bearing pins, bearing pin constrain disk grafting with bearing pin for gear disk end face.
9. the electric bicycle power-assisted built-in motor according to claim 8 using moment inspecting transmission device, its feature
It is：The bearing pin of the planetary gear disk is fixed on planetary gear disk end face, and pin slide is connected with pin sleeve, the pin
Axle sleeve rolls connection in the pin shaft hole of bearing pin constraint disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692358.4U CN207141296U (en) | 2017-06-15 | 2017-06-15 | Torque detection transmission device and electric bicycle power-assisted middle motor applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692358.4U CN207141296U (en) | 2017-06-15 | 2017-06-15 | Torque detection transmission device and electric bicycle power-assisted middle motor applying same |
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| Publication Number | Publication Date |
|---|---|
| CN207141296U true CN207141296U (en) | 2018-03-27 |
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ID=61671092
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720692358.4U Active CN207141296U (en) | 2017-06-15 | 2017-06-15 | Torque detection transmission device and electric bicycle power-assisted middle motor applying same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161274A (en) * | 2017-06-15 | 2017-09-15 | 天津迪思科博科技发展有限公司 | Torque detection transmission device and electric bicycle power-assisted middle motor applying same |
| CN112026979A (en) * | 2020-09-04 | 2020-12-04 | 深圳市宝速得科技有限公司 | Mid-set power device of epicycloid bicycle |
| CN113541403A (en) * | 2021-07-15 | 2021-10-22 | 江苏晨朗电子集团有限公司 | Hub motor with built-in torque sensor |
| US11511828B1 (en) | 2022-06-07 | 2022-11-29 | Jiangsu Channelon Electronics Group Co., Ltd. | Hub motor with internally provided torque transducer |
-
2017
- 2017-06-15 CN CN201720692358.4U patent/CN207141296U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161274A (en) * | 2017-06-15 | 2017-09-15 | 天津迪思科博科技发展有限公司 | Torque detection transmission device and electric bicycle power-assisted middle motor applying same |
| CN112026979A (en) * | 2020-09-04 | 2020-12-04 | 深圳市宝速得科技有限公司 | Mid-set power device of epicycloid bicycle |
| CN112026979B (en) * | 2020-09-04 | 2021-08-17 | 深圳市宝速得科技有限公司 | Mid-set power device of epicycloid bicycle |
| CN113541403A (en) * | 2021-07-15 | 2021-10-22 | 江苏晨朗电子集团有限公司 | Hub motor with built-in torque sensor |
| US11511828B1 (en) | 2022-06-07 | 2022-11-29 | Jiangsu Channelon Electronics Group Co., Ltd. | Hub motor with internally provided torque transducer |
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