CN201904709U - Flat type small hub motor for electrombile - Google Patents
Flat type small hub motor for electrombile Download PDFInfo
- Publication number
- CN201904709U CN201904709U CN2010205532755U CN201020553275U CN201904709U CN 201904709 U CN201904709 U CN 201904709U CN 2010205532755 U CN2010205532755 U CN 2010205532755U CN 201020553275 U CN201020553275 U CN 201020553275U CN 201904709 U CN201904709 U CN 201904709U
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- electric vehicle
- motor
- vehicle motor
- hub
- magnet steel
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Abstract
The utility model provides a flat type small hub motor for an electrombile, which comprises an inner stator and an outer rotor, wherein the inner stator comprises a central shaft, a winding coil, a stator iron core and a Hall element; the stator iron core is fixed on the central shaft; the winding coil and the Hall element used for detecting the position of the outer rotor are arranged in a slot of the stator iron core; the connection leads of the winding coil and the Hall element are drawn out from an inner hole of the central shaft; the outer rotor comprises a small hub with a rim, a magnetic conduction coil, magnetic steels, a left end cover and a right end cover; the magnetic conduction coil is arranged in the small hub; a plurality of magnetic steels are arranged on the inner surface of the magnetic conduction coil; and the left end cover and the right end cover are respectively fixed on the small hub, so as to form the outer rotor. The flat type small hub motor for the electrombile is magnetized along radial direction. The motor has the characteristics of low speed and large torque because of the more motor poles and higher air gap magnetic sealing property, thereby needing no reducer. The motor has compact structure, is flat in appearance, has the hub with small outer diameter, and meets the requirement of the motor of an electric bicycle smaller than 16 inches.
Description
Technical field
The utility model belongs to the motor technology field, refers in particular to a kind of electric vehicle motor that uses on electric bicycle.
Background technology
Today that oil price is surging, environmental consciousness strengthens, bicycle is light owing to it, flexible characteristic still is the social now important vehicles.Yet very big variation has also taken place to the demand of bicycle in people now, and people wish that bicycle has higher travel speed, and electric bicycle has had vast market, and people consider demand easy to carry again, make folding bike propagate its belief on a large scale.Now, bicycle trade has target easy to carry again and effort with the requirement that the bicycle of developing can satisfy travel speed, particularly the market demand along with collapsible mini electric car is more and more vigorous, and bicycle trade spends a large amount of manpower and financial resources to research and develop sooner forr a short time at it.
The applicant is through discoverys that study for a long period of time, and the demand of existing electric vehicle motor can't satisfy 16 " below electric bicycle (14 ", 12 ") has limited collapsible mini electric car and developed towards littler lighter direction.Existing electric motor car magneto generally all mainly comprises stator and rotor two large divisions, on stator or rotor, be provided with winding coil or magnet steel, when winding coil energising back produces magnetic field, the magnetic field interaction of this magnetic field and magnet steel and realize circular motion drives load and rotates.This motor is installed in 16 at present " and on the above electric bicycle, the needs of its profile installation dimension and motor performance can't satisfy 16 at all " following electric bicycle (14 ", 12 ").
The utility model content
The purpose of this utility model is to provide a kind of platypelloid type steamboat hub electric vehicle motor, the technical problem of the needs of at all can't satisfy 16 to solve its profile installation dimension of existing electric vehicle motor and motor performance " following electric bicycle (14 ", 12 ").
In order to achieve the above object, the utility model provides a kind of platypelloid type steamboat hub electric vehicle motor, electric vehicle motor is made up of internal stator and external rotor, internal stator comprises axis, winding coil, stator core and Hall element, stator core is fixed on the axis, be provided with winding coil and the described Hall element that is used to detect the external rotor position in the groove of stator core, the lead wire of winding coil and Hall element is outwards drawn by the endoporus of axis, external rotor comprises the little wheel hub of belt wheel rim, magnetic guiding cycle, magnet steel, left end cap and right end cap, in the little wheel hub magnetic guiding cycle is set, the inner surface of magnetic guiding cycle is provided with some magnet steel, and left end cap and right end cap are separately fixed on the little wheel hub to form external rotor.
In the utility model, external rotor and described little wheel hub are arranged to one.
Left and right end cap is provided with rolling bearing in respectively, is provided with the rubber skeleton sealing ring outward.
And, evenly being provided with some magnet steel on the inner surface of magnetic guiding cycle, magnet steel is to have the magnet steel that the rare-earth Nd-Fe-B permanent magnetic material of high residual magnetic flux density, high-coercive force and high energy product is made.Air air gap between internal stator and the external rotor is a non-uniform gap.Internal stator employing skewed slot design or described magnet steel are tilting.Internal stator adopts fractional slot winding.
In the utility model, magnet steel has adopted the rare-earth Nd-Fe-B permanent magnetic material with high residual magnetic flux density, high-coercive force and high energy product, and employing radial magnetizing, many motor pole numbers and high air gap flux density make motor have the characteristic of low speed high torque, can save decelerator, make the electric machine structure compactness, profile is flat, the wheel hub external diameter is little, ", 12 " electric bicycle is to the requirement of motor output parameter low speed high torque so that can satisfy 14, also reduce simultaneously the torque pulsation that motor rotates, and then improve the comfort of rider.That is to say the platypelloid type steamboat hub electric vehicle motor that the utility model provides, the satisfied 16 " needs of following electric bicycle motor fully.
Description of drawings
Fig. 1 is the topology example figure of the novel platypelloid type steamboat of this usefulness hub electric vehicle motor.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 1, platypelloid type steamboat hub electric vehicle motor of the present utility model is made up of internal stator and external rotor.
Internal stator comprises axis 1, winding coil 5, stator core 6 and Hall element 10.Stator core 6 is fixed on the axis 1, be provided with winding coil 5 and the Hall element 10 that is used to detect the external rotor position in the groove of stator core 6, the lead wire of winding coil 5 and Hall element 10 is outwards drawn by the endoporus of axis 1, so that be connected with outside electronic equipments such as electronic controller.Inner-stator iron core 6 can repeatedly be pressed into by silicon steel sheet.
External rotor comprises steamboat hub 7, magnetic guiding cycle 9, magnet steel 8, left end cap 4 and the right end cap 12 of belt wheel rim.Magnetic guiding cycle 8 is set in the steamboat hub 7, and the inner surface of magnetic guiding cycle 9 is provided with some magnet steel 8, and left end cap 4 and right end cap 12 are separately fixed on the steamboat hub 7 to form external rotor.In the present embodiment, left and right end cap 4,12 is provided with rolling bearing 3,13 in respectively, is provided with rubber skeleton sealing ring 2,14 outward, so that can play the effect of dustproof and waterproof.And external rotor and steamboat hub 7 are arranged to one, and the wheel rim on the steamboat hub 7 can be installed the tire of minor diameter.On the inner surface of magnetic guiding cycle 9 be evenly be provided with some magnet steel 8 (such as, 40 polylith magnet steel are set), the magnet steel that magnet steel 8 adopts rare-earth Nd-Fe-B permanent magnetic material with high residual magnetic flux density, high-coercive force and high energy product to make.Air air gap between internal stator and the external rotor is a non-uniform gap.Internal stator employing skewed slot design or magnet steel 8 are tilting.Internal stator adopts fractional slot winding.How right the motor number of pole-pairs be, such as reaching 20 pairs.That is to say that the utility model adopts radial magnetizing, many motor pole numbers and high air gap flux density make motor have the characteristic of low speed high torque, can save decelerator, make the electric machine structure compactness, and profile is flat, and the wheel hub external diameter is little.
This motor is applicable to the electric bicycle in steamboat footpath, and the pulsation that motor rotates is little, and steamboat footpath electric bicycle travels steadily, compares with other electric vehicle motor, and structure is more compact, is applicable to 16 " below small-sized electric car.
More than disclosed only be several specific embodiment of the present invention, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop in protection scope of the present invention.
Claims (7)
1. platypelloid type steamboat hub electric vehicle motor, it is characterized in that, described electric vehicle motor is made up of internal stator and external rotor, described internal stator comprises axis, winding coil, stator core and Hall element, described stator core is fixed on the described axis, be provided with described winding coil and the described Hall element that is used to detect the external rotor position in the groove of described stator core, the lead wire of described winding coil and described Hall element is outwards drawn by the endoporus of axis, described external rotor comprises the little wheel hub of belt wheel rim, magnetic guiding cycle, magnet steel, left end cap and right end cap, in the described little wheel hub described magnetic guiding cycle is set, the inner surface of described magnetic guiding cycle is provided with some magnet steel, and described left end cap and right end cap are separately fixed on the described little wheel hub to form external rotor.
2. platypelloid type steamboat hub electric vehicle motor as claimed in claim 1 is characterized in that described external rotor and described little wheel hub are arranged to one.
3. platypelloid type steamboat hub electric vehicle motor as claimed in claim 1 is characterized in that, described left and right end cap is provided with rolling bearing in respectively, is provided with the rubber skeleton sealing ring outward.
4. platypelloid type steamboat hub electric vehicle motor as claimed in claim 1, it is characterized in that, evenly be provided with some magnet steel on the inner surface of described magnetic guiding cycle, magnet steel is to have the magnet steel that the rare-earth Nd-Fe-B permanent magnetic material of high residual magnetic flux density, high-coercive force and high energy product is made.
5. platypelloid type steamboat hub electric vehicle motor as claimed in claim 4 is characterized in that the air air gap between described internal stator and the external rotor is a non-uniform gap.
6. platypelloid type steamboat hub electric vehicle motor as claimed in claim 4 is characterized in that, described internal stator employing skewed slot design or described magnet steel are tilting.
7. platypelloid type steamboat hub electric vehicle motor as claimed in claim 1 is characterized in that, described internal stator adopts fractional slot winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205532755U CN201904709U (en) | 2010-10-09 | 2010-10-09 | Flat type small hub motor for electrombile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205532755U CN201904709U (en) | 2010-10-09 | 2010-10-09 | Flat type small hub motor for electrombile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904709U true CN201904709U (en) | 2011-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205532755U Expired - Lifetime CN201904709U (en) | 2010-10-09 | 2010-10-09 | Flat type small hub motor for electrombile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801270A (en) * | 2011-05-26 | 2012-11-28 | 德昌电机(深圳)有限公司 | Permanent magnet motor and kitchen appliance with same |
| CN104539131A (en) * | 2014-12-15 | 2015-04-22 | 深圳市凯旸电机有限公司 | Outer rotor servo motor and control method applied to balance vehicle |
| CN105390311A (en) * | 2015-12-22 | 2016-03-09 | 北京北开电气股份有限公司 | Rotary magnetic device |
-
2010
- 2010-10-09 CN CN2010205532755U patent/CN201904709U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102801270A (en) * | 2011-05-26 | 2012-11-28 | 德昌电机(深圳)有限公司 | Permanent magnet motor and kitchen appliance with same |
| CN102801270B (en) * | 2011-05-26 | 2017-12-12 | 德昌电机(深圳)有限公司 | Magneto and the kitchen appliance with the motor |
| CN104539131A (en) * | 2014-12-15 | 2015-04-22 | 深圳市凯旸电机有限公司 | Outer rotor servo motor and control method applied to balance vehicle |
| CN105390311A (en) * | 2015-12-22 | 2016-03-09 | 北京北开电气股份有限公司 | Rotary magnetic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000, A building, building 4, China Science and technology industrial square, 8 Industrial Road, Suzhou Industrial Park, Jiangsu, 2 Patentee after: Suzhou Bozun Technology Co., Ltd. Address before: 215000 new industrial Plaza, 8 Industrial Road, Suzhou Industrial Park, Jiangsu, 4A-2 Patentee before: Suzhou Bozun Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |