CN112078715B - Intelligent mid-mounted motor - Google Patents
Intelligent mid-mounted motor Download PDFInfo
- Publication number
- CN112078715B CN112078715B CN202010990915.7A CN202010990915A CN112078715B CN 112078715 B CN112078715 B CN 112078715B CN 202010990915 A CN202010990915 A CN 202010990915A CN 112078715 B CN112078715 B CN 112078715B
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- Prior art keywords
- planetary
- gear
- planetary support
- support shaft
- sleeved
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- 239000000428 dust Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
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- 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
-
- 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
- B62M6/45—Control or actuating devices therefor
-
- 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
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
Landscapes
- 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
本发明公开了一种智能中置电机，包括壳体，所述壳体内设中轴和行星减速结构，中轴和行星减速结构通过输出齿轮连接，所述输出齿轮通过单向器套设于中轴上，中轴上设扭力传感结构，所述扭力传感结构与控制器连接；所述中轴和行星减速结构的行星支撑轴平行设置。本发明电机减速比大，电机的体积较小，与整车的一体性良好。
The present invention discloses an intelligent mid-mounted motor, comprising a housing, a central shaft and a planetary reduction structure arranged in the housing, the central shaft and the planetary reduction structure being connected via an output gear, the output gear being sleeved on the central shaft via a one-way device, a torque sensing structure being arranged on the central shaft, the torque sensing structure being connected to a controller; the central shaft and the planetary support shaft of the planetary reduction structure being arranged in parallel. The motor of the present invention has a large reduction ratio, a small size of the motor, and good integration with the whole vehicle.
Description
Technical Field
The invention relates to the field of electric bicycles, in particular to an intelligent central motor.
Background
Along with the enhancement of people's environmental awareness, have high-efficient energy-conserving electric bicycle to get more and more popular of people, people are higher to the electric power experience requirement of current bicycle, and the start and the closing of helping hand are particularly critical, and current electric power motor speed reduction ratio is little, and the volume of motor is great, and is relatively poor with the wholeness of whole car.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an intelligent central motor.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The intelligent middle motor comprises a shell, wherein a middle shaft and a planetary reduction structure are arranged in the shell, the middle shaft is connected with the planetary reduction structure through an output gear, the output gear is sleeved on the middle shaft through a one-way device, a torsion sensing structure is arranged on the middle shaft, the torsion sensing structure is connected with a controller, and the middle shaft is parallel to a planetary supporting shaft of the planetary reduction structure.
The planetary reduction mechanism comprises a stator fixedly connected with a shell, one end of a planetary support shaft is fixed on the stator or the shell, the other end of the planetary support shaft is fixed on the inner wall of the shell, a rotor is sleeved on the planetary support shaft, the rotor is fixedly connected with a sun gear sleeved on the planetary support shaft, a planetary support is sleeved on the planetary support shaft, the planetary support is connected with the planetary support shaft through a bearing and is connected with the shell through an annular gear, a planetary gear is arranged on the inner side of the planetary support, the planetary gear is connected with the sun gear through a gear, a planetary output wheel is fixedly arranged on the outer side of the planetary support, the planetary output wheel is connected with the output gear through a gear, and the planetary output wheel is connected with the planetary support shaft through a bearing.
The planetary support shaft is rotatably connected with the shell, a rotor and a sun gear are fixedly arranged on the planetary support shaft, a planetary support is sleeved on the planetary support shaft, the planetary support is connected with the planetary support shaft through a bearing, a stator is arranged on the shell, the planetary support is connected with the planetary support shaft through a bearing and is connected with the shell through an inner gear ring, a planetary gear is arranged on the inner side of the planetary support, a gear is connected between the planetary gear and the sun gear, a planetary output wheel is fixedly arranged on the outer side of the planetary support, a gear is connected between the planetary output wheel and the output gear, a bearing is connected between the planetary output wheel and the planetary support shaft, and the planetary support shaft and the sun gear are integrally formed.
Preferably, the planet carrier is connected with the inner gear ring on the inner wall of the shell through helical teeth, and a thrust bearing is arranged between the planet carrier and the sun gear.
Preferably, the sensor structure comprises a torsion sleeve sleeved on the central shaft, a strain gauge is stuck on the torsion sleeve, and the strain gauge is connected with the moment circuit board.
Preferably, the two ends of the torsion sleeve are respectively provided with a connecting tooth disc and a ratchet ring, the ratchet ring and the torsion sleeve are meshed through ratchet teeth and are in sliding sleeve joint with the middle shaft through teeth, the ratchet ring is provided with a magnetic ring, and the isolator is sleeved on the torsion sleeve.
Preferably, the torque circuit board is arranged at one end of the torque sleeve connected with the ratchet ring, and a power supply board is fixedly arranged on the inner wall of the shell opposite to the torque circuit board and connected with the controller.
Preferably, a dust cover is sleeved outside the torsion sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1) The motor has the advantages of large reduction ratio, small volume of the motor and good integration with the whole vehicle.
2) The invention has simple and exquisite structure, and can accurately control the starting and the closing of the motor, and has obvious boosting effect.
3) The invention has high stability of the complete machine matching structure and small power consumption.
The invention is further described below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic cross-sectional view of a first preferred embodiment of the present invention;
Fig. 2 is a schematic cross-sectional view of a second preferred embodiment of the present invention.
Detailed Description
In order to more fully understand the technical content of the present invention, the following description and description of the technical solution of the present invention will be further presented with reference to specific embodiments.
As shown in fig. 1 and 2, the intelligent central motor comprises a shell 1, a central shaft 2 and a planetary reduction structure 3 are arranged in the shell 1, the central shaft 2 and the planetary reduction structure 3 are connected through an output gear 4, the output gear 4 is sleeved on the central shaft 2 through a one-way device 5, a torsion sensing structure 6 is arranged on the central shaft 2, the torsion sensing structure 6 is connected with a controller, and planetary support shafts 31 of the central shaft 2 and the planetary reduction structure 3 are arranged in parallel. The parallel arrangement of the center shaft 2 and the planetary support shaft 31 effectively reduces the volume of the motor, and has good integration with the whole vehicle. Meanwhile, the starting and closing of the motor are accurately controlled, and the power assisting effect is obvious.
Fig. 1 shows a schematic cross-sectional structure of a first preferred embodiment of the present invention, where the planetary reduction mechanism 3 includes a stator 32 fixedly connected to the housing 1, one end of a planetary support shaft 31 is fixed to the stator 32 or the housing 1, the other end is fixed to an inner wall of the housing 1, a rotor 33 is sleeved on the planetary support shaft 31, the rotor 33 is fixedly connected to a sun gear 34 sleeved on the planetary support shaft 31, a planetary carrier 35 is sleeved on the planetary support shaft 31, the planetary carrier 35 is connected to the planetary support shaft 31 through a bearing and is connected to the housing 1 through an inner gear ring 11, a planetary gear 36 is provided inside the planetary carrier 35, a planetary gear 36 is connected to a sun gear 34 through a gear, a planetary output wheel 37 is fixedly provided outside the planetary carrier 35, the planetary output wheel 37 is connected to an output gear 4 through a gear, and the planetary output wheel 37 is connected to the planetary support shaft 31 through a bearing. The rotor 33, the sun gear 34, the planetary gears 36, the planetary carrier 35, the planetary output wheel 37 and the output gear 4 sequentially transmit power and complete speed reduction and power assistance, so that the structure is compact.
As shown in fig. 2, a schematic cross-sectional structure of a second preferred embodiment of the present invention is shown, the planetary support shaft 31 is rotatably connected with the housing 1, the rotor 33 and the sun gear 34 are fixedly arranged on the planetary support shaft 31, the planetary support shaft 31 is further sleeved with the planetary support frame 35, the planetary support frame 35 is connected with the planetary support shaft 31 through a bearing, the housing 1 is provided with the stator 32, the planetary support frame 35 is connected with the planetary support shaft 31 through a bearing and is connected with the housing 1 through the annular gear 11, the planetary gear 36 is arranged at the inner side of the planetary support frame 35, the planetary gear 36 is connected with the sun gear 34 through a gear, the planetary output wheel 37 is fixedly arranged at the outer side of the planetary support frame 35, the planetary output wheel 37 is connected with the output gear 4 through a gear, the planetary output wheel 37 is connected with the planetary support shaft 31 through a bearing, and the planetary support shaft 31 and the sun gear 34 are integrally formed. The planetary support shaft 31 is fixedly connected with the rotor 33 and the sun gear 34, the sun gear 34 outputs power, and the planetary gear 36, the planetary support 35, the planetary output wheel 37 and the output gear 4 sequentially transmit power and complete speed reduction and power assistance, so that the structure is compact.
Specifically, the planet carrier 35 is connected with the inner gear ring 11 on the inner wall of the shell 1 by helical teeth, and a thrust bearing 38 is arranged between the planet carrier 35 and the sun gear 34.
Specifically, the sensor structure 6 includes a torsion sleeve 61 sleeved on the central shaft 2, and a strain gauge is stuck on the torsion sleeve 61 and connected with a moment circuit board 65.
Specifically, two ends of the torsion sleeve 61 are respectively provided with a connecting tooth disc 63 and a ratchet ring 64, the ratchet ring 64 and the torsion sleeve 61 are meshed through ratchets and are sleeved with the middle shaft 2 in a sliding manner through teeth, a magnetic ring is arranged on the ratchet ring 64, and the isolator 5 is sleeved on the torsion sleeve 61.
Specifically, the torque circuit board 65 is disposed at one end of the torque sleeve connected with the ratchet ring, and a power supply board 66 is fixedly disposed on the inner wall of the housing 1 opposite to the torque circuit board 65, and the power supply board 66 is connected with the controller.
Specifically, the torsion sleeve 61 is sleeved with a dust cover 62.
The working principle of the invention is as follows:
When riding, a pedal force is applied to the pedal, the pedal drives a chain through the toothed disc 63 and drives the middle shaft 2 to rotate, the middle shaft 2, the ratchet ring 64 and the torsion sleeve 61 sequentially transmit power, the strain gauge generates strain, the torque circuit board 65 transmits signals to the power supply board 66, the power supply board transmits detected torsion data of the driving toothed disc 63 to the controller, the controller controls the motor rotor 33 to work according to the power assisting condition, and finally, the power is transmitted to the torsion sleeve 61 and the toothed disc 63 through the output gear 4 and the isolator 4, so that power assisting is completed. When the stepping is stopped, the rotor 33 is still working and drives the torsion sleeve 61 and the tooth disc 63 to rotate, but the ratchet ring 64 is separated from the torsion sleeve 61, the magnetic ring is fixed on the ratchet ring 64, the Hall on the power supply plate 66 detects that the magnetic ring does not rotate, and the controller stops working and stops assisting. When the rotor 33 stops working or is powered off and riders, the isolator 4 is disengaged, and when the rotor 33 is driven, the isolator 4 is engaged.
The foregoing description is only an example to further illustrate the technical content of the present invention, so that the reader can easily understand the technical content, but the present invention is not limited to the embodiments, wherein the local structures and the connection modes of the components can be adjusted according to the actual situation, and any technical extension or recreating according to the present invention is protected by the present invention.
Claims (5)
1. The intelligent central motor comprises a shell, and is characterized in that a central shaft and a planetary reduction structure are arranged in the shell, the central shaft and the planetary reduction structure are connected through an output gear, the output gear is sleeved on the central shaft through a one-way device, a torsion sensing structure is arranged on the central shaft and is connected with a controller, the central shaft and a planetary supporting shaft of the planetary reduction structure are arranged in parallel, the torsion sensing structure comprises a torsion sleeve sleeved on the central shaft, a strain gauge is adhered on the torsion sleeve and connected with a torque circuit board, two ends of the torsion sleeve are respectively connected with a tooth disc and a ratchet ring, the ratchet ring and the torsion sleeve are meshed through ratchet teeth and are sleeved on the central shaft in a sliding mode, a magnetic ring is arranged on the ratchet ring, the one-way device is sleeved on the torsion sleeve, the torque circuit board is arranged at one end, connected with the ratchet ring, of the power supply board is fixedly arranged on the inner wall of the shell opposite to the torque circuit board, the power supply board is connected with the controller, the power supply board is provided with a Hall for detecting whether the magnetic ring rotates, the Hall detects that the magnetic ring does not rotate, the controller stops working, and the power assisting is stopped.
2. The intelligent centrally-mounted motor according to claim 1, wherein the planetary reduction structure comprises a stator fixedly connected with a shell, one end of a planetary support shaft is fixed on the stator or the shell, the other end of the planetary support shaft is fixed on the inner wall of the shell, a rotor is sleeved on the planetary support shaft, the rotor is fixedly connected with a sun gear sleeved on the planetary support shaft, a planetary support is sleeved on the planetary support shaft, the planetary support is connected with the planetary support shaft through a bearing and is connected with the shell through an annular gear, a planetary gear is arranged on the inner side of the planetary support, a planetary output wheel is fixedly arranged on the outer side of the planetary support, a gear is connected between the planetary output wheel and the output gear, and a bearing is connected between the planetary output wheel and the planetary support shaft.
3. The intelligent central motor according to claim 1, wherein the planetary support shaft is rotatably connected with the housing, the rotor and the sun gear are fixedly arranged on the planetary support shaft, the planetary support shaft is sleeved with the planetary support, the planetary support is connected with the planetary support shaft through a bearing, the housing is provided with the stator, the planetary support is connected with the planetary support shaft through a bearing and is connected with the housing through an annular gear, the planetary gear is arranged on the inner side of the planetary support, the planetary gear is connected with the sun gear through a gear, the planetary output wheel is fixedly arranged on the outer side of the planetary support, the planetary output wheel is connected with the output gear through a gear, the planetary output wheel is connected with the planetary support shaft through a bearing, and the planetary support shaft and the sun gear are integrally formed.
4. The intelligent central motor according to any one of claims 2 and 3, wherein the planetary carrier is connected with an inner gear ring on the inner wall of the housing by helical teeth, and a thrust bearing is arranged between the planetary carrier and the sun gear.
5. The intelligent centrally-mounted motor of claim 4, wherein the torsion sleeve is externally sleeved with a dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990915.7A CN112078715B (en) | 2020-09-19 | 2020-09-19 | Intelligent mid-mounted motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990915.7A CN112078715B (en) | 2020-09-19 | 2020-09-19 | Intelligent mid-mounted motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112078715A CN112078715A (en) | 2020-12-15 |
| CN112078715B true CN112078715B (en) | 2025-01-21 |
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ID=73738539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010990915.7A Active CN112078715B (en) | 2020-09-19 | 2020-09-19 | Intelligent mid-mounted motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112078715B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024178688A1 (en) * | 2023-03-01 | 2024-09-06 | 深圳市大疆创新科技有限公司 | Mid-drive electric motor and electric assist bicycle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203111431U (en) * | 2013-02-04 | 2013-08-07 | 苏州盛亿电机有限公司 | Mid-mounted motor device of electric bicycle |
| CN207889932U (en) * | 2017-12-21 | 2018-09-21 | 无锡岚凌卓维动力科技有限公司 | A kind of drive mechanism on electric bicycle |
| CN212797210U (en) * | 2020-09-19 | 2021-03-26 | 深圳市喜德盛自行车股份有限公司 | Intelligent central motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428394A (en) * | 2016-09-07 | 2017-02-22 | 新安乃达驱动技术（上海）股份有限公司 | Electric aided-bicycle, as well as built-in motor drive system and control method thereof |
| CN207241949U (en) * | 2017-09-19 | 2018-04-17 | 八方电气(苏州)股份有限公司 | Electric bicycle infinitely variable speed transmission |
-
2020
- 2020-09-19 CN CN202010990915.7A patent/CN112078715B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203111431U (en) * | 2013-02-04 | 2013-08-07 | 苏州盛亿电机有限公司 | Mid-mounted motor device of electric bicycle |
| CN207889932U (en) * | 2017-12-21 | 2018-09-21 | 无锡岚凌卓维动力科技有限公司 | A kind of drive mechanism on electric bicycle |
| CN212797210U (en) * | 2020-09-19 | 2021-03-26 | 深圳市喜德盛自行车股份有限公司 | Intelligent central motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112078715A (en) | 2020-12-15 |
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