CN109768642A - A kind of external rotor electric machine and vehicle - Google Patents
A kind of external rotor electric machine and vehicle Download PDFInfo
- Publication number
- CN109768642A CN109768642A CN201811445649.9A CN201811445649A CN109768642A CN 109768642 A CN109768642 A CN 109768642A CN 201811445649 A CN201811445649 A CN 201811445649A CN 109768642 A CN109768642 A CN 109768642A
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- electric machine
- motor
- external rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention provides a kind of external rotor electric machine and vehicles, are related to technical field of motors.A kind of external rotor electric machine, comprising: stator, rotor, armature winding and magnet steel, the rotor ring around the stator outer peripheral surface and be coaxially disposed with the stator, the armature winding is arranged on the stator, and the magnet steel is arranged on the rotor.External rotor electric machine provided by the invention, rotor are arranged in stator exterior, improve the radiating condition of rotor and magnet steel, heat will not be difficult to distribute because of blocking for stator.Even if motor overload, heat can also distribute well, prevent magnet steel from demagnetizing because heated, improve the overload capacity of motor.
Description
Technical field
The present invention relates to motor fields, in particular to a kind of external rotor electric machine and vehicle.
Background technique
Permanent magnet synchronous motor be in a kind of widely applied motor in the fields such as vehicle, especially in new-energy automobile field,
Most new-energy automobile all selects permanent magnet synchronous motor as main drive motor.Existing permanent magnet synchronous motor, rotor are all disposed within
Stator interior, the magnet steel made of permanent magnet are arranged on rotor.In motor operation, a large amount of heat can be generated, especially
When motor overload, the heat of generation can be increased considerably.And rotor and magnet steel are built in stator interior, radiating condition is bad, heat
Amount is not easy to distribute, while there is also heated the problem of easily demagnetizing for permanent magnet, so will limit the anti-overload ability of motor.
Summary of the invention
The present invention provides a kind of external rotor electric machine and vehicles, it is intended to improve existing permanent-magnetic synchronous motor rotor and magnet steel
The problem of poor heat radiation.
The present invention is implemented as follows:
A kind of external rotor electric machine, comprising: stator, rotor, armature winding and magnet steel, the rotor ring is around the stator
It outer peripheral surface and is coaxially disposed with the stator, the armature winding is arranged on the stator, and the magnet steel is arranged at described turn
On son.
Further, in preferred embodiments of the present invention, the magnet steel is made of permanent magnet.
Further, in preferred embodiments of the present invention, the rotor is equipped with several magnetic slot groups, several magnetic
Steel tank group is arranged around the axis interval of the rotor, and each magnetic slot group includes two magnetic slots, two magnet steel
Slot angle is a, and 0 ° < a < 180 °, the magnet steel is set in the magnetic slot.
Further, in preferred embodiments of the present invention, the magnetic slot is axially extending along the rotor.
Further, in preferred embodiments of the present invention, between the outer peripheral surface of the stator and the inner peripheral surface of the rotor
With gap.
Further, in preferred embodiments of the present invention, the outer peripheral surface of the stator is equipped with several spaced
Slot for winding, the slot for winding is axially extending along the stator, and the armature winding is set in the slot for winding.
Further, in preferred embodiments of the present invention, the stator is equipped with axis hole, the axis hole and the stator
Coaxial arrangement.
A kind of vehicle, including car body, axletree, motor and wheel, the axletree are set on the car body, the wheel
The both ends of axis are equipped with the motor, and each motor is equipped with the wheel, and the motor is described in any of the above embodiments
External rotor electric machine.
Further, in preferred embodiments of the present invention, the stator is fixedly connected with the axletree, the rotor
It is fixedly connected with the wheel, and the wheel and rotor coaxial setting.
Further, in preferred embodiments of the present invention, harness pipeline and cooling line are equipped in the axletree.
The beneficial effects of the present invention are: the external rotor electric machine that the present invention obtains by above-mentioned design, rotor is arranged in stator
Outside improves the radiating condition of rotor and magnet steel, and heat will not be difficult to distribute because of blocking for stator.Even if motor mistake
It carries, heat can also distribute well, prevent magnet steel from demagnetizing because heated, improve the overload capacity of motor.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of external rotor electric machine provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the vehicle provided in an embodiment of the present invention after hiding car body.
Icon: stator 1；Slot for winding 11；Axis hole 12；Rotor 2；Magnetic slot 21；Wheel 3；Axletree 4；Cooling line 41.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Embodiment 1 please refers to shown in Fig. 1, and the present embodiment provides a kind of 2 motors of outer rotor, comprising: stator 1, rotor 2, electricity
Pivot winding and magnet steel, rotor 2 surround the outer peripheral surface of stator 1 and are coaxially disposed with stator 1, and armature winding is arranged on the stator 1,
Magnet steel is made of permanent magnet, and is arranged on rotor 2, has gap between the outer peripheral surface of stator 1 and the inner peripheral surface of rotor 2.
2 motor of outer rotor provided in this embodiment, rotor 2 are arranged outside stator 1, make the heat sink strip of rotor 2 and magnet steel
Part is improved, and heat will not be difficult to distribute because of stator 1 due to blocking.Even if motor overload, heat can also give out well
It goes, prevents magnet steel from demagnetizing because heated, improve the overload capacity of motor.
Further, in the present embodiment, rotor 2 is equipped with several magnetic slot groups, several magnetic slot group surrounding rotors 2
The setting of axis interval, each magnetic slot group include two magnetic slots 21, and magnetic slot 21 is rectangular channel, and is prolonged along the axial direction of rotor 2
It stretches., two 21 angles of magnetic slot are a, and 0 ° < a < 180 ° (i.e. two magnetic slots 21 are arranged in V-shape), magnet steel is set to magnetic
In steel tank 21, the shape of magnet steel matches with magnetic slot 21.In the magnet steel that V-shape is arranged, its reluctance torque can make full use of,
Torque density is improved, to promote the performance of 2 motor of outer rotor.
Further, in the present embodiment, the outer peripheral surface of stator 1 is equipped with several spaced slot for windings 11, winding
Slot 11 is axially extending along stator 1, and armature winding is set in slot for winding 11.The structure of slot for winding 11 can also be regarded as in stator 1
Periphery face interval several 1 teeth of stator are set, adjacent 1 between cog of stator forms slot for winding 11.The set-up mode of armature winding can
With reference to the set-up mode of existing permanent magnet synchronous motor.Stator 1 is equipped with axis hole 12, and axis hole 12 and stator 1 are coaxially disposed.Axis hole
12 with the axletree 4 of vehicle for connecting.
Shown in referring to figure 2., the present embodiment also provides a kind of vehicle, including car body, axletree 4, motor and wheel 3, vehicle
Wheel shaft 4 is set on car body, and the both ends of wheel shaft are equipped with motor, and each motor is equipped with wheel 3, and motor is any of the above-described
2 motor of outer rotor.Stator 1 is fixedly connected with axletree 4, and rotor 2 is fixedly connected with wheel 3, and wheel 3 and rotor 2 are coaxially set
It sets.
All especially oneself corresponding 2 motor of outer rotor is operated alone two wheels 3 at 4 both ends of axletree, works as straight line
When driving, two 2 motors of outer rotor keep running with revolving speed with torque, and when being turned, it is poor to be carried out according to the angle of turning
Speed control.And since two 2 motors of outer rotor are mutually indepedent, it need to only control and the stator 1 of two 2 motors of outer rotor is inputted, i.e.,
It can control its synchronous operation or differential control.
Existing vehicle, wheel control are all that motor drives wheel by retarder and transmission component, and
Implement the vehicle provided, since 2 motor of outer rotor is directly connect with wheel 3, to not have to setting retarder and transmission component, greatly
The structure at wheel of vehicle 3 is simplified greatly, also reduces manufacturing cost.
Further, in the present embodiment, harness pipeline and cooling line 41 are equipped in axletree 4.Harness pipeline is used for
Armature winding on stator 1 carries out cabling, and the control system of armature winding and vehicle body is enable to be attached.Cooling line
41 connect with the cooling system of vehicle body itself.
In order to cool down to motor in existing vehicle, need that individual cooling system is arranged for motor.And this implementation
The vehicle provided in example, it is cooling by the way that cooling line 41 is arranged in axletree 4 since stator 1 is directly connect with axletree 4
The cooling system that pipeline 41 is directly carried with vehicle body itself is connect, and realization cools to 2 motor of outer rotor.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of external rotor electric machine characterized by comprising stator, rotor, armature winding and magnet steel, the rotor ring around
It the outer peripheral surface of the stator and is coaxially disposed with the stator, the armature winding is arranged on the stator, and the magnet steel is set
It sets on the rotor.
2. external rotor electric machine according to claim 1, which is characterized in that the magnet steel is made of permanent magnet.
3. external rotor electric machine according to claim 1, which is characterized in that the rotor is equipped with several magnetic slot groups, if
Do the magnetic slot group around the rotor axis interval be arranged, each magnetic slot group include two magnetic slots, two
The magnetic slot angle is a, and 0 ° < a < 180 °, the magnet steel is set in the magnetic slot.
4. external rotor electric machine according to claim 3, which is characterized in that the magnetic slot prolongs along the axial direction of the rotor
It stretches.
5. external rotor electric machine according to claim 1, which is characterized in that the outer peripheral surface of the stator and the rotor it is interior
There is gap between circumferential surface.
6. external rotor electric machine according to claim 1, which is characterized in that the outer peripheral surface of the stator is equipped with several intervals
The slot for winding of setting, the slot for winding is axially extending along the stator, and the armature winding is set in the slot for winding.
7. external rotor electric machine according to claim 1, which is characterized in that the stator be equipped with axis hole, the axis hole and
The stator coaxial arrangement.
8. a kind of vehicle, which is characterized in that including car body, axletree, motor and wheel, the axletree is set to the car body
On, the both ends of the wheel shaft are equipped with the motor, and each motor is equipped with the wheel, and the motor is claim
The described in any item external rotor electric machines of 1-7.
9. vehicle according to claim 8, which is characterized in that the stator is fixedly connected with the axletree, and described turn
It is sub to be fixedly connected with the wheel, and the wheel and rotor coaxial setting.
10. vehicle according to claim 9, which is characterized in that be equipped with harness pipeline and cooling line in the axletree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445649.9A CN109768642A (en) | 2018-11-29 | 2018-11-29 | A kind of external rotor electric machine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445649.9A CN109768642A (en) | 2018-11-29 | 2018-11-29 | A kind of external rotor electric machine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109768642A true CN109768642A (en) | 2019-05-17 |
Family
ID=66450211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445649.9A Pending CN109768642A (en) | 2018-11-29 | 2018-11-29 | A kind of external rotor electric machine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109768642A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570753A (en) * | 2011-12-29 | 2012-07-11 | 中国科学院深圳先进技术研究院 | Permanent magnet harmonic motor |
| CN203401945U (en) * | 2013-08-15 | 2014-01-22 | 安徽工程大学 | Electric drive wheel with cooling function |
| CN204559345U (en) * | 2015-03-31 | 2015-08-12 | 无锡新大力电机有限公司 | Adopt single stator and double-rotor desk permanent-magnet wheel hub motor of printed circuit winding |
-
2018
- 2018-11-29 CN CN201811445649.9A patent/CN109768642A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570753A (en) * | 2011-12-29 | 2012-07-11 | 中国科学院深圳先进技术研究院 | Permanent magnet harmonic motor |
| CN203401945U (en) * | 2013-08-15 | 2014-01-22 | 安徽工程大学 | Electric drive wheel with cooling function |
| CN204559345U (en) * | 2015-03-31 | 2015-08-12 | 无锡新大力电机有限公司 | Adopt single stator and double-rotor desk permanent-magnet wheel hub motor of printed circuit winding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6977555B2 (en) | Rotating machine | |
| EP1253701B1 (en) | Motor | |
| US8217544B2 (en) | Motor-generator having stator and inner and outer rotors | |
| KR100989378B1 (en) | Permanent magnet type rotary electric machine and permanent magnet type rotary electric device | |
| US8618712B2 (en) | Electric motor and reduction motor | |
| EP2219285B1 (en) | Electric machine with single stator and two mutually independent rotors, and road vehicle provided with said electric machine | |
| CN106208578B (en) | A kind of permasyn morot | |
| US20140091664A1 (en) | Interior permanent magnet electric rotating machine | |
| KR20160091919A (en) | Axial gap motor | |
| DE102010017521A1 (en) | engine | |
| CN103117604A (en) | Electric rotating machine | |
| CN102738990A (en) | Transverse flux machine and vehicle | |
| CN102598476A (en) | Dynamo-electric machine and automobile | |
| US12021416B2 (en) | Rotating electric machine | |
| US11456643B2 (en) | Rotating electric machine, controller, vehicle system, and maintenance method of rotating electric machine | |
| CN102624108B (en) | Stator for axial clearance type motor and axial clearance type motor | |
| US20200052639A1 (en) | Control apparatus and vehicle drive system | |
| CN104854775A (en) | Asynchronous machine with optimized distribution of electrical losses between stator and rotor | |
| US20210249916A1 (en) | Rotating electric machine and manufacturing method thereof | |
| US6380658B1 (en) | Method and apparatus for torque ripple reduction in sinusoidally excited brushless permanent magnet motors | |
| US20220271633A1 (en) | Manufacturing method of rotating electric machine | |
| JP2013141410A (en) | Stator of rotary electric machine and rotary electric machine using the same | |
| JP7363379B2 (en) | Control device and rotating electrical machine system | |
| CN109768642A (en) | A kind of external rotor electric machine and vehicle | |
| US11984779B2 (en) | Rotating electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190517 |
|
| RJ01 | Rejection of invention patent application after publication |