CN206412855U - Wheel hub motor with encoder - Google Patents
Wheel hub motor with encoder Download PDFInfo
- Publication number
- CN206412855U CN206412855U CN201720076391.4U CN201720076391U CN206412855U CN 206412855 U CN206412855 U CN 206412855U CN 201720076391 U CN201720076391 U CN 201720076391U CN 206412855 U CN206412855 U CN 206412855U
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- wheel hub
- encoder
- cover
- enclosing cover
- ligai
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Abstract
The utility model is related to a kind of wheel hub motor with encoder, including upper lid, lower cover, wheel hub, coil, axle and rotor magnetic steel, upper lid and lower cover are separately fixed at the two ends of wheel hub, the inner side of the wheel hub is provided with rotor magnetic steel, the coil is housed in wheel hub, and connect firmly on axle, the lower cover includes Xia Ligai and lower enclosing cover, the lower enclosing cover is bolted on the outside of lower inner lid, and there is gap between the Xia Ligai and lower enclosing cover, between the gap of the Xia Ligai and lower enclosing cover, in lower fixed buckle is connected with the middle of outer side of lid end, the fixing card, which is buckled, is provided with encoder, the encoder is electrically connected with coil.The utility model by encoder be arranged on it is lower in cover, and positioned between Xia Ligai and the gap of lower enclosing cover, install, change convenient；Enclose remote offline, it is small by electromagnetic interference influence；Result in magnetic field variation signal or motor speed signal of wheel hub motor output etc. so that controller obtains the working order of high-precision wheel hub motor.
Description
Technical field
The utility model is related to wheel hub motor technical field, especially a kind of wheel hub motor with encoder.
Background technology
Wheel hub motor technology is also referred to as wheel inner electric machine technology, and its maximum feature is exactly by power set, transmission
Device and brake apparatus are all integrated in wheel hub, are able to the mechanical part of electric vehicle is greatly simplified.Wheel hub motor drives
Dynamic system is largely divided into two kinds of structural shapes according to the rotor type of motor：Inner-rotor-type and external-rotor-type.
Electrodynamic balance car, is called body-sensing car, thinking car, the car that acts as regent etc., is that one kind relies on driven by power and homeostasis energy
The walking-replacing tool of power control.In the market mainly has single wheel and the class of two-wheel two.Its operation principles is mainly built upon one kind and is referred to as
In the general principle of " dynamic stability " (Dynamic Stabilization), passed using the gyroscope and acceleration of vehicle body
Sensor, to detect the change of vehicle body attitude, and utilizes servo-control system, accurately drive hub motor is adjusted accordingly
It is whole, to keep the balance of system.
Proposed because electrodynamic balance car is by wheel hub motor execution motion control, therefore to the operating control of wheel hub motor
Higher requirement.However, carrying out tachometric survey using Hall switch more than wheel hub motor now, 2 are exported during each changes of magnetic field
Individual signal, therefore the inaccessiable high-precision control requirement of accuracy of detection of its speed.Set in existing part wheel hub motor
There is encoder, encoder induced field change, output detection signal greatly improves the velocity control accuracy of wheel hub motor, due to
It is arranged on stator, so changing inconvenient, also easily produces electromagnetic interference.
Utility model content
The technical problems to be solved in the utility model is：Deficiency in the prior art is overcome to export height there is provided one kind
The wheel hub motor with encoder of the speed detection signal of precision.
The utility model solves the technical scheme that its technical problem used：A kind of wheel hub motor with encoder, bag
Lid, lower cover, wheel hub, coil, axle and rotor magnetic steel are included, the upper lid and lower cover are separately fixed at the two ends of wheel hub, the wheel
The inner side of hub is provided with rotor magnetic steel, and the coil is housed in wheel hub, and is connected firmly on axle, and the lower cover includes Xia Ligai with
Enclosing cover, the lower enclosing cover, which is bolted between the outside of lower inner lid, and the Xia Ligai and lower enclosing cover, has gap, institute
State between the gap of Xia Ligai and lower enclosing cover, be connected with fixed buckle in the middle of lower inner outer side of lid end, the fixing card buckles peace
Equipped with encoder, the encoder is electrically connected with coil.
Further, one end of the axle by lower bearing be arranged on it is lower in cover, its other end stretch out on cover, it is described on
Lid is fixed on axle by upper bearing (metal).
Further, the diameter of the lower bearing is less than the diameter of upper bearing (metal).Due to axle lower bearing be arranged on it is lower in
Cover, so in order to cost-effective, lower bearing can use small No. one.
Further, non-inflatable tyre is installed on the outer peripheral face of the wheel hub.Non-inflatable tyre change, it is easy for installation.
The beneficial effects of the utility model are：The utility model by encoder be arranged on it is lower in cover, and positioned at lower inner lid
Between the gap of lower enclosing cover, install, change convenient；Enclose remote offline, it is small by electromagnetic interference influence；Result in wheel hub motor
Magnetic field variation signal or motor speed signal of output etc. so that controller obtains the working order of high-precision wheel hub motor,
Accurately controlled beneficial to electrodynamic balance car, improve the stability and reliability of operation.
Brief description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure：1. on cover, 2. upper bearing (metal)s, 3. rotor magnetic steels, 4. wheel hubs, 5. lower bearings, 6. lower covers, 7. fix buckles, 8.
Covered under encoder, 9. axles, 10. coils, 11. non-inflatable tyres, 6-1., enclosing cover under 6-2..
Embodiment
The utility model is further described presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram only to show
Meaning mode illustrates basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
A kind of wheel hub motor with encoder as shown in Figure 1, including upper lid 1, lower cover 6, wheel hub 4, coil 10, the and of axle 9
Rotor magnetic steel 3, upper lid 1 and lower cover 6 are separately fixed at the two ends of wheel hub 4, and the inner side of wheel hub 4 is provided with rotor magnetic steel 3, and coil 10 is received
Hold in wheel hub 4, and connect firmly on axle 9, lower cover 6 includes lower inner lid 6-1 and lower enclosing cover 6-2, lower enclosing cover 6-2 is bolted
There is gap between Xia Ligai 6-1 outside, and lower inner lid 6-1 and lower enclosing cover 6-2, between lower inner lid 6-1 and lower enclosing cover 6-2
Between gap, fixed buckle 7 is connected with the middle of lower inner lid 6-1 outboard ends, fixes on buckle 7 and encoder 8, encoder 8 is installed
Electrically connected with coil 10.
In the present embodiment, one end of axle 9 is arranged on lower inner lid 6-1 by lower bearing 5, and its other end stretches out upper lid 1,
Upper lid 1 is fixed on axle 9 by upper bearing (metal) 2.The diameter of lower bearing 5 is less than the diameter of upper bearing (metal) 2.Pacify on the outer peripheral face of wheel hub 4
Equipped with non-inflatable tyre 11.
Encoder 8 has small volume, accurate, and resolution itself is very high, the contactless advantage without abrasion, and same kind was both
Detectable angle displacement, can be accurately positioned again.The induced field of encoder 8 changes, output detection signal, during a changes of magnetic field,
Encoder can export 1024, the signals such as 2018 or 4096, greatly improve the velocity control accuracy of wheel hub motor.Electrodynamic balance car
Result in magnetic field variation signal or motor speed signal of wheel hub motor output etc. so that controller obtains high-precision wheel hub
The working order of motor, is accurately controlled beneficial to electrodynamic balance car, improves the stability and reliability of operation.
Above-mentioned embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with this skill
The personage of art can understand content of the present utility model and be carried out, and protection model of the present utility model can not be limited with this
Enclose, all equivalent change or modifications made according to the utility model Spirit Essence should all cover in protection model of the present utility model
In enclosing.
Claims (4)
1. a kind of wheel hub motor with encoder, including upper lid (1), lower cover (6), wheel hub (4), coil (10), axle (9) and rotor
Magnet steel (3), the upper lid (1) and lower cover (6) are separately fixed at the two ends of wheel hub (4), and the inner side of the wheel hub (4) is provided with rotor
Magnet steel (3), the coil (10) is housed in wheel hub (4), and is connected firmly on axle (9), it is characterised in that：Lower cover (6) bag
Xia Ligai (6-1) and lower enclosing cover (6-2) are included, the lower enclosing cover (6-2) is bolted on Xia Ligai (6-1) outside, and
There is gap between lower inner lid (6-1) and the lower enclosing cover (6-2), the lower inner lid (6-1) and lower enclosing cover (6-2) gap it
Between, be connected with the middle of Xia Ligai (6-1) outboard end on fixed buckle (7), the fixed buckle (7) encoder (8) be installed,
The encoder (8) electrically connects with coil (10).
2. wheel hub motor with encoder according to claim 1, it is characterised in that：One end of the axle (9) is under
Bearing (5) is arranged on lower inner lid (6-1), and its other end, which stretches out, covers (1), and the upper lid (1) is fixed on by upper bearing (metal) (2)
On axle (9).
3. wheel hub motor with encoder according to claim 2, it is characterised in that：The diameter of the lower bearing (5) is small
Diameter in upper bearing (metal) (2).
4. wheel hub motor with encoder according to claim 1, it is characterised in that：On the outer peripheral face of the wheel hub (4)
Non-inflatable tyre (11) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076391.4U CN206412855U (en) | 2017-01-20 | 2017-01-20 | Wheel hub motor with encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076391.4U CN206412855U (en) | 2017-01-20 | 2017-01-20 | Wheel hub motor with encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206412855U true CN206412855U (en) | 2017-08-15 |
Family
ID=59556888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720076391.4U Active CN206412855U (en) | 2017-01-20 | 2017-01-20 | Wheel hub motor with encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206412855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317437A (en) * | 2017-08-25 | 2017-11-03 | 北京进化者机器人科技有限公司 | Wheel hub motor and wheel hub motor system |
-
2017
- 2017-01-20 CN CN201720076391.4U patent/CN206412855U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317437A (en) * | 2017-08-25 | 2017-11-03 | 北京进化者机器人科技有限公司 | Wheel hub motor and wheel hub motor system |
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