CN207595181U - Hall type torque sensor and motor - Google Patents
Hall type torque sensor and motor Download PDFInfo
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- CN207595181U CN207595181U CN201721092195.2U CN201721092195U CN207595181U CN 207595181 U CN207595181 U CN 207595181U CN 201721092195 U CN201721092195 U CN 201721092195U CN 207595181 U CN207595181 U CN 207595181U
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- shift fork
- ring
- displacement
- torque sensor
- hall
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Abstract
The utility model provides a kind of Hall type torque sensor, includes shift fork ring, magnet and Hall sensor；Multiple shift fork rings include the first shift fork ring and the second shift fork ring the two shift fork rings；Tiltedly protrusion and oblique groove are provided on shift fork ring；In described two shift fork rings, the oblique protrusion on a shift fork ring matches with the oblique groove on another shift fork ring；Oblique protrusion opposite with oblique groove can be slided；Magnet or Hall sensor are connected with the first shift fork ring；Relative displacement can be generated between magnet and Hall sensor.Torque sensor is small in the utility model, can be combined with motor, without separately installed, avoids cumbersome wiring wiring process.
Description
Technical field
The utility model is related to electric bicycle accessories fields, and in particular, to a kind of Hall type torque sensor and electricity
Machine.
Background technology
In the prior art, employ torque sensor electric booster bicycle ride be comfortable on, easily, it is smooth, follow
Property is good, and grade climbing performance is excellent against the wind, and the significant advantage that moment-assistant is ridden is environmental protection and energy saving：Due to the participation of manpower, reduce
The power consumption of this vehicle-mounted finite energy resource of lithium battery.Compared with pure electric vehicle drives, in the case of identical course continuation mileage,
Battery capacity can reduce half, and power, weight, cost can greatly reduce needed for motor.Based on the above power more used at present
Square sensing has following several typical ways：1) it is installed on axis, axial displacement is generated using torque, detected using Hall axial
Displacement obtains torque signals；2) it is installed on axis, using foil gauge, foil gauge is supplied electricity to using collector ring, using collector ring
Output signal；3) it is installed on axis, there is spline on output shaft, two groups of spline relative positions become when output shaft reverses
To change, the magnetic induction of two groups of coils on it changes, and the variation of magnetic induction is converted to voltage signal by coil, from
And obtain torque signals.
But the torque sensor installed on axis need to be separately installed with rear-guard motor, is needed between moment sensing and motor each
From going out conducting wire and with controller be connected to be used for transmission signal and power supply, and the torque sensor installed on axis is expensive, increase
Production cost is added.
Utility model content
For the defects in the prior art, the purpose of this utility model is to provide a kind of Hall type torque sensor and electricity
Machine.
According to Hall type torque sensor provided by the utility model, shift fork ring, magnet and Hall sensor are included；
Multiple shift fork rings include the first shift fork ring and the second shift fork ring the two shift fork rings；
Tiltedly protrusion and oblique groove are provided on shift fork ring；
In described two shift fork rings, the oblique protrusion on a shift fork ring and the oblique groove phase on another shift fork ring
Match；Oblique protrusion opposite with oblique groove can be slided；
Magnet or Hall sensor are connected with the first shift fork ring；
Relative displacement can be generated between magnet and Hall sensor.
Preferably, tiltedly protrusion, oblique groove are located on the axial end face of the first shift fork ring, the second shift fork ring respectively；
Multiple oblique protrusions are arranged along the first shift fork ring circumferential direction；
Multiple oblique grooves are arranged along the second shift fork ring circumferential direction.
Preferably, also comprising displacement ring；
Displacement ring includes displacement annulate shaft, displacement ring shoulder and displacement ring extension；
Displacement annulate shaft, displacement ring shoulder, displacement ring extension are sequentially connected；
First shift fork ring set is connected on displacement annulate shaft；Magnet or Hall sensor are mounted on displacement ring extension.
Preferably, also comprising motor shaft；
Displacement ring set is connected on motor shaft；Displacement ring and motor shaft are circumferentially fixed；
Second shift fork ring is connect with motor shaft by bearing.
Preferably, displacement ring passes through pin or key and motor axis connection；Or
Displacement ring is interference fitted with motor shaft.
Preferably, motor shaft includes the motor shaft shoulder；
Spring is provided between the motor shaft shoulder and displacement ring shoulder.
Preferably, also comprising cover board and electric machine casing；Cover board is fastenedly connected with electric machine casing；
First shift fork ring and the circumferentially fixed connection of cover board；Second shift fork ring is connected by bearing with electric machine casing.
Preferably, also comprising flywheel and pcb board；
Flywheel is mounted on the second shift fork ring；
Hall sensor is mounted on pcb board.
Preferably, the oblique groove, which includes, is oriented to wall surface and limiting wall surface；
Wall surface opposed slot bottom surface is oriented to be obliquely extended；It is vertical with groove bottom to limit wall surface.
The utility model additionally provides a kind of motor, includes above-mentioned Hall type torque sensor.
Compared with prior art, the utility model has following advantageous effect：
1st, torque sensor is small in the utility model, can be combined with motor, without separately installed, avoids
Cumbersome wiring wiring process；
2nd, the torque when axial thrust load indirect detection on the utility model inclined-plane is ridden, simple in structure, sensitivity
It is high；
3rd, the utility model is cheap, economical and practical.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is Hall type torque sensor structure diagram provided by the utility model；
Fig. 2 is the first shift fork ring and the second shift fork ring assembling schematic diagram.
It is shown in figure：
1 magnet steel 8 of electric machine casing
2 displacement ring 9 of cover board
3 displacement ring shoulder 91 of clutch shaft bearing
First shift fork ring, 4 displacement annulate shaft 92
Tiltedly 41 displacement ring extensions 93 of protrusion
Second shift fork ring, 5 pin 10
51 motor shaft 11 of oblique groove
It is oriented to the 511 motor shaft shoulder 111 of wall surface
Limit 512 pcb board 12 of wall surface
6 flywheel 13 of second bearing
Spring 7
Specific embodiment
The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, various modifications and improvements can be made.
These belong to the scope of protection of the utility model.
In the description of the present invention, it is to be appreciated that term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instructions such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship is for only for ease of description the utility model and simplifies description rather than instruction or imply signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
As shown in Figure 1, in embodiment, Hall type torque sensor provided by the utility model includes electric machine casing 1, cover board
2nd, shift fork ring, magnet steel 8, motor shaft 11, pcb board 12 and flywheel 13, wherein shift fork ring form the first shift fork ring 4, the second shift fork
The two the shift fork rings of ring 5 are equipped with Hall sensor on pcb board 12.Flywheel 13 is fixedly mounted on 5 outer surface of the second shift fork ring
On, axial aperture is provided on the second shift fork ring 5, the inside and outside wall of the second shift fork ring 5 passes through bearing and motor shaft 11, electricity respectively
Casing body 1 is connected.Second shift fork ring 5 and the first shift fork ring 4 are coaxially arranged, the end face of the second shift fork ring 5 in axial direction one end
It is provided with oblique groove 51, the first shift fork ring 4 is in axial direction correspondingly arranged on tiltedly protrusion 41 on the end face of one end, tiltedly 41 shapes of protrusion
Shape matches with 51 shape of oblique groove.First shift fork ring 4 and 2 circumferentially opposed fixation of cover board, cover board 2 connect with motor housing fastening
It connects.The drive sprocket when riding drives flywheel 13 to rotate, so as to which the second shift fork ring 5 be driven to rotate, 5 axial end of the second shift fork ring
The oblique groove 51 in face transfers torque to oblique raised the 41 of 4 end face of the first shift fork ring, 4 outer ring of the first shift fork ring and 2 endoporus of cover board week
To fixation, and cover board 2 is fixed on electric machine casing 1, final that bicycle is driven to advance so as to which driving motor housing 1 rotates.It is preferred that
In example, comprising multiple oblique raised 41 and multiple oblique grooves 51, multiple described oblique raised 41 along 4 circumferential direction cloth of the first shift fork ring
It puts；Multiple oblique grooves 51 arrange that tiltedly protrusion 41 is corresponded with oblique groove 51 along 5 circumferential direction of the second shift fork ring, set
Multigroup oblique raised 41 with the purpose of oblique groove 51 are that the torque of bigger can be transmitted, prevent tiltedly protrusion 41 sent out when torque is larger
Raw fracture.Oblique groove 51 preferably or on the first shift fork ring 4 is set, is accordingly set on the second shift fork ring 5 oblique
Protrusion 41.It is further preferred that can also be on the first shift fork ring 4, on the second shift fork ring 5 and meanwhile be provided with tiltedly protrusion 41 with
Oblique groove 51, oblique raised 41 on a shift fork ring match with the oblique groove 51 on another shift fork ring.
Displacement ring 9 includes displacement annulate shaft 92, displacement ring shoulder 91 and displacement ring extension 93；Displacement annulate shaft 92, displacement ring
Shoulder 91, displacement ring extension 93 are sequentially connected；First shift fork ring 4 is socketed on displacement annulate shaft 92 and is contacted with displacement ring shoulder 91；
Magnet steel 8 is mounted on displacement ring extension 93.Displacement ring 9 is whole to be socketed on motor shaft 11, and displacement ring 9 passes through pin 10 and motor
11 circumferentially opposed fixation of axis.Motor shaft 11 includes the motor shaft shoulder 111, and bullet is provided between the motor shaft shoulder 111 and displacement ring shoulder 91
Spring 7.As shown in Fig. 2, oblique groove 51, which includes, is oriented to wall surface 511 and limiting wall surface 512：It is oblique with respect to groove bottom to be oriented to wall surface 511
Extension, limiting wall surface 512 are vertical with groove bottom.In ride, the first shift fork ring 4 is turned round by 5 offer of the second shift fork ring
Square is generated on displacement ring 9 and is circumferentially rotated, and tiltedly protrusion 41 is contacted with being oriented to wall surface 511, is oriented to work of the wall surface 511 to tiltedly protrusion 41
Peripheral force and axial force can be firmly decomposed into, under the action of axial force, 4 further 9 edge of drive displacement ring of the first shift fork ring
Be axially moved, and compressed spring 7, according to Hooke's law, the decrement of spring 7 to the amount of force being subject to be it is directly proportional,
Be fixed with magnet steel 8 on displacement ring 9, pcb board 12 be then mounted on on 11 relatively-stationary part of motor shaft, such as stator, displacement
Ring 9, which in axial direction moves the pcb board 12 for allowing for magnet steel 8 and being equipped with Hall sensor, a relative displacement, and this displacement
Again corresponding with 7 decrement of spring, therefore, the principle of Hall type torque sensor provided by the utility model is summarized as：When riding
Flywheel 13 is driven to rotate by foot-operated drive sprocket, the torque of riding of flywheel 13 is by oblique raised 41 points of the first shift fork to overcome wheel
The power and axial force of the moment of resistance of rotation are enclosed, axial force compressed spring 7 generates displacement, utilizes 8 displacement of magnet steel and Hall sensor
Testing principle detection torque, the moment of resistance is bigger, tiltedly protrusion 41 axial displacement it is bigger, indirectly reflect torque size.Preference
In, displacement ring 9 can also be to be connected by key motor shaft 11.Preferably, it can also be the pcb board 12 equipped with Hall sensor
On displacement ring 9, relative displacement is generated with respect to magnet steel 8 by 12 active of pcb board and carries out torgue measurement.Preferably, it is described
Magnet steel 8 can also be other kinds of magnet, such as electromagnet etc., but in contrast, magnet steel 8 is simple in structure, reliable.
It is directly sleeved on the first shift fork ring 4 it is further preferred that magnet steel 8 can also be ring-shaped, but this structure can cause torque to be surveyed
It is not accurate enough to measure result, and influences integrally-built connective stability.
The utility model additionally provides a kind of motor, and motor includes above-mentioned Hall type torque sensor, and motor is mounted on
On the back vent of bicycle.The advantage of the structure is that it is possible to be combined torque sensor with conventional motors, while mounted on voluntarily
On vehicle rear axle, complicated wire arrangements design is avoided, the acquisition of torque signals is accurate much sooner.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (10)
1. a kind of Hall type torque sensor, which is characterized in that include shift fork ring, magnet and Hall sensor；
Multiple shift fork rings include the first shift fork ring and the second shift fork ring the two shift fork rings；
Tiltedly protrusion and oblique groove are provided on shift fork ring；
In described two shift fork rings, the oblique protrusion on a shift fork ring matches with the oblique groove on another shift fork ring；Tiltedly
Protrusion opposite with oblique groove can be slided；
Magnet or Hall sensor are connected with the first shift fork ring；
Relative displacement can be generated between magnet and Hall sensor.
2. Hall type torque sensor according to claim 1, which is characterized in that tiltedly protrusion, oblique groove are located at the respectively
One shift fork ring, the second shift fork ring axial end face on；
Multiple oblique protrusions are arranged along the first shift fork ring circumferential direction；
Multiple oblique grooves are arranged along the second shift fork ring circumferential direction.
3. Hall type torque sensor according to claim 1, which is characterized in that also comprising displacement ring；
Displacement ring includes displacement annulate shaft, displacement ring shoulder and displacement ring extension；
Displacement annulate shaft, displacement ring shoulder, displacement ring extension are sequentially connected；
First shift fork ring set is connected on displacement annulate shaft；Magnet or Hall sensor are mounted on displacement ring extension.
4. Hall type torque sensor according to claim 3, which is characterized in that also comprising motor shaft；
Displacement ring set is connected on motor shaft；Displacement ring and motor shaft are circumferentially fixed；
Second shift fork ring is connect with motor shaft by bearing.
5. Hall type torque sensor according to claim 4, which is characterized in that displacement ring passes through pin or key and motor shaft
Connection.
6. Hall type torque sensor according to claim 4, which is characterized in that motor shaft includes the motor shaft shoulder；
Spring is provided between the motor shaft shoulder and displacement ring shoulder.
7. Hall type torque sensor according to claim 1, which is characterized in that also comprising cover board and electric machine casing；Lid
Plate is fastenedly connected with electric machine casing；
First shift fork ring and the circumferentially fixed connection of cover board；Second shift fork ring is connected by bearing with electric machine casing.
8. Hall type torque sensor according to claim 1, which is characterized in that also comprising flywheel and pcb board；
Flywheel is mounted on the second shift fork ring；
Hall sensor is mounted on pcb board.
9. Hall type torque sensor according to claim 1, which is characterized in that the oblique groove include be oriented to wall surface with
Limit wall surface；
Wall surface opposed slot bottom surface is oriented to be obliquely extended；It is vertical with groove bottom to limit wall surface.
10. a kind of motor, which is characterized in that include the Hall type torque sensor described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092195.2U CN207595181U (en) | 2017-08-29 | 2017-08-29 | Hall type torque sensor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721092195.2U CN207595181U (en) | 2017-08-29 | 2017-08-29 | Hall type torque sensor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207595181U true CN207595181U (en) | 2018-07-10 |
Family
ID=62753568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721092195.2U Active CN207595181U (en) | 2017-08-29 | 2017-08-29 | Hall type torque sensor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207595181U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618615A (en) * | 2017-08-29 | 2018-01-23 | 新安乃达驱动技术（上海）股份有限公司 | Hall type torque sensor and motor |
| CN109131710A (en) * | 2018-09-08 | 2019-01-04 | 钟德斌 | Shaft sensor and hub motor among power-assisted and body-building Self-Propelled vehicle |
| CN111169588A (en) * | 2020-01-06 | 2020-05-19 | 安乃达驱动技术(上海)股份有限公司 | Moment pedal frequency sensor suitable for electric power-assisted bicycle |
-
2017
- 2017-08-29 CN CN201721092195.2U patent/CN207595181U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618615A (en) * | 2017-08-29 | 2018-01-23 | 新安乃达驱动技术（上海）股份有限公司 | Hall type torque sensor and motor |
| CN109131710A (en) * | 2018-09-08 | 2019-01-04 | 钟德斌 | Shaft sensor and hub motor among power-assisted and body-building Self-Propelled vehicle |
| CN111169588A (en) * | 2020-01-06 | 2020-05-19 | 安乃达驱动技术(上海)股份有限公司 | Moment pedal frequency sensor suitable for electric power-assisted bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201100 floor 1-2, block a, 19 Lane 133, Guangzhong Road, Minhang District, Shanghai Patentee after: Aneida drive technology (Shanghai) Co., Ltd Address before: 201108, Minhang District, Shanghai Garden Road No. 5, 2060, 1-3 Patentee before: Xin'an Naida drive technology (Shanghai) Limited by Share Ltd |