CN202602457U - A brushless in-wheel motor with a built-in rotor - Google Patents
A brushless in-wheel motor with a built-in rotor Download PDFInfo
- Publication number
- CN202602457U CN202602457U CN201220124640XU CN201220124640U CN202602457U CN 202602457 U CN202602457 U CN 202602457U CN 201220124640X U CN201220124640X U CN 201220124640XU CN 201220124640 U CN201220124640 U CN 201220124640U CN 202602457 U CN202602457 U CN 202602457U
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- motor
- rotor
- wheel hub
- brushless
- axle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a brushless in-wheel motor with a built-in rotor. The purpose of the utility model is to provide a brushless in-wheel motor with a built-in rotor capable of substantially reducing amount of magnetic material, copper line, and silicon steel plate, and reducing production cost in the case of same efficiency and power level. The technical scheme of the utility model is that the brushless in-wheel motor with a built-in rotor comprises a mandrel, a motor, a planet gear retarding mechanism, and a wheel hub, wherein the motor and the planet gear retarding mechanism are integrally arranged inside the wheel hub. The brushless in-wheel motor with a built-in rotor is characterized in that the motor is an internal rotor motor a built-in rotor, that the planet gear retarding mechanism comprises a planet carrier, a sun gear, an internal gear, and a planet gear which are all fixedly mounted, that a planet shaft is fixedly mounted on the planet carrier, and that the planet gear is coaxially mounted on the planet shaft through a bearing. The brushless in-wheel motor with a built-in rotor is applicable to motor and machine manufacturing field and application classification of the brushless in-wheel motor with a built-in rotor belongs to electrically-driven vehicle driving technology.
Description
Technical field
The utility model relates to a kind of brushless direct-current, mid-wheel hub motor, mainly is applicable to motor, mechanical manufacturing field, and application class belongs to the motor vehicle Driving technique, and electric bicycle, the electricity that is specially adapted to various types rubs, electric automobile, electro-tricycle.
Background technology
Present wheel hub motor on the market all adopts outer-rotor structure, mainly comprises the high speed external rotor wheel hub motor of common low speed external rotor wheel hub motor, band gear reduction.Though the high speed external rotor electric machine of band reducing gear is low compared with low speed external rotor electric machine own wt, material is few; Cost is economized; But external rotor electric machine receives the restriction of self structure; Be bonded in epitrochanterian magnet steel and be arranged in the stator outer ring, volume and weight is big, and main magnetic material, copper cash and silicon steel sheet consumption are big; And the consumption of high speed inner rotor motor at aspects such as magnetic material, copper cash and silicon steel sheets that slows down with power band greatly reduces, and cost is lower.
The patent No. is that 200620048005.2 Chinese utility model discloses a kind of external rotor planetary gear reduction speed motor, and its structure is the sun gear that planetary gear reducing mechanism is set on external rotor, and planet carrier and ring gear all are fixed on the wheel hub.Owing to adopt the external rotor electric machine structure, cause volume and weight big, main magnetic material, copper cash and the silicon steel sheet consumption is big, cost is higher.
The patent No. is that 200410014607.1 Chinese utility model discloses a kind of brushless axis deceleration wheel hub motor; Its high speed rotor is through outputting power behind the planetary gear speed-reduction; The whole single mandrel of wheel hub motor is passed the central gear centre bore of planetary gear speed-reduction, and central gear is in the rotation of the periphery of axle.Wherein the planetary gear reducing mechanism kind of drive is that ring gear is fixed, the central gear active, and the planet carrier outputting power is not spaced from each other between motor and the planetary gear reducing mechanism, has the possibility that influences each other and disturb; In addition, motor adopts external rotor electric machine structure (stator is positioned at internal rotor) in fact, main magnetic material, copper cash and the silicon steel sheet consumption is big, cost is higher.
The patent No. is that 201120261630.6 Chinese utility model discloses a kind of wheel hub motor, and its principle is that the inner-rotor brushless motor combines with planetary gear reducing mechanism, adopts ring gear to fix; The sun gear active, the planet carrier outputting power drives wheel hub, simultaneously for motor and planetary gear reducing mechanism are separated; Reduce to influence each other, separated retaining is set in wheel hub it is divided into two independently cavitys, thereby cause internal structure complicated; Structure is compact inadequately, and machine volume and weight are bigger than normal.
Summary of the invention
The technical problem that the utility model will solve is: to the problem of above-mentioned existence a kind of simple and compact for structure, brushless mid-wheel hub motor that volume is little, easy to process is provided; Can be under equal efficient and other situation of power stage; Significantly reduce the consumption of magnetic material, copper cash and silicon steel sheet, reduce production costs.
The technical scheme that the utility model adopted is: brushless mid-wheel hub motor; Comprise axle, motor, be used to reduce the also planetary gear reducing mechanism of output of motor speed; And the wheel hub that is supported on the axle two ends through the bearing I; Wherein motor and planetary gear reducing mechanism integral body are positioned at wheel hub inside, it is characterized in that: said motor is the mid-inner rotor motor of rotor; Said planetary gear reducing mechanism comprises the planet carrier that is fixedly installed on the motor stator casing, the central gear that is directly driven by motor, the ring gear that is fixedly installed in the wheel hub inner surface; And while and central gear and ring gear planet gear meshed; Wherein fixedly mount a planet axis on the planet carrier, planetary gear is installed on this planet axis through coaxial bearing.
Said motor comprises and being coaxially installed on the axle and can be around its axis rotor sleeve in relative rotation; And be fixedly installed in the stator cage on the axle; Wherein the rotor sleeve outer surface is equipped with rotor core; And at this rotor core outer surface stickup magnet steel, the stator cage inner surface has pressed solidly stator core and coil; Said central gear is coaxially installed on the rotor sleeve.
Said planet carrier is supported on the rotor sleeve through the bearing II.
Said rotor sleeve one end is supported on the stator cage through the bearing III that is coaxially installed on its outer surface, and the other end is supported on the axle through the bearing IV that is coaxially installed on its inner surface.
Said wheel hub comprises interconnective outer wheel hub casing and motor outer end cap, and both respectively are supported on the two ends of axle through a bearing I, and said ring gear is fixedly installed in the inner surface of outer wheel hub casing.
Said axle two ends are processed with mounting plane, are used for axle and vehicle frame are fixed, and prevent that it from rotating with respect to vehicle frame; And wherein an end has and is convenient to groove and the deep hole that the motor lead-out wire is arranged.
The beneficial effect of the utility model is: the utility model motor adopts the mid-inner rotor motor of rotor; Its rotor is in the inside of stator core and coil; The central gear of planetary gear reducing mechanism is with the rotor high speed rotating, and with respect to external rotor electric machine of the prior art, the internal rotor diameter is little, rotating speed is higher; Under equal efficient and other situation of power stage; Reduced the consumption of magnetic material, copper cash and silicon steel sheet significantly, not only reduced the motor weight and volume greatly, and greatly reduced production cost; Planetary gear reducing mechanism adopts planet carrier to fix simultaneously; Sun gear initiatively; The ring gear outputting power drives the structure of wheel hub, utilizes the planet carrier that is fixedly installed on the stator cage that motor and planetary gear reducing mechanism are separated naturally, and structure is compact more; Technology is simpler, has also avoided both influencing each other simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1, present embodiment comprises axle 1, be coaxially installed on rotor middle inner rotor motor on the axle 1, be coaxially installed on the planetary gear reducing mechanism on the axle 1, and is supported on the wheel hub at axle 1 two ends through bearing I 14; Wherein motor and planetary gear reducing mechanism integral body are positioned at wheel hub inside, and planetary gear reducing mechanism is used to reduce motor speed, increases and turn round and export the rotation of drive wheel hub.
Said axle 1 is fluting deep hole pipe, and two ends are processed with mounting plane, are used for axle 1 and vehicle frame are fixed, and prevent that it from rotating with respect to vehicle frame; Simultaneously on axle 1, offer slotted eye, so that motor lead-out wire 18 is led to the outside.
Said motor comprises the rotor sleeve 2 that is coaxially installed on the axle 1, and is fixedly installed in the stator cage 6 on the axle 1 through the key connection; In this example; Rotor sleeve 2 one ends are supported on the stator cage 6 through the bearing III 3 that is coaxially installed on its outer surface; The other end is supported on the axle 1 through the bearing IV 19 that is coaxially installed on its inner surface; Installation rear spindle 1 is fixed with the relative position of rotor sleeve 2, and rotor sleeve 2 can be around its axis freely rotating with respect to axle 1 under the effect of bearing III 3 and bearing IV 19 simultaneously.Said rotor sleeve 2 outer surfaces are equipped with rotor core 4; And at this rotor core outer surface stickup magnet steel 5; Stator cage 6 inner surfaces, pressed solidly stator core 7 and coil 17 (coil is electrically connected with the motor lead-out wire), formed common inner rotor motor corresponding to the position of rotor core 4.
Said planetary gear reducing mechanism comprises the planet carrier 8 that is fixedly installed on the stator cage 6, the coaxial ring gear 12 that is fixed in central gear 10 on the rotor sleeve 2, is fixedly installed in the wheel hub inner surface; And while and central gear 10 and ring gear 12 planet gear meshed 11; Wherein fixedly mount a planet axis 9 on the planet carrier 8; Planetary gear 11 is installed on this planet axis through coaxial bearing; The formation planet carrier is fixed, sun gear active, the planetary gear reducing mechanism of ring gear outputting power.For guaranteeing the strength and stiffness of planet carrier 8, this example is installed bearing II 15 between planet carrier 8 and rotor sleeve 2, planet carrier 8 is supported on the rotor sleeve 2.
Said wheel hub comprises interconnective outer wheel hub casing 13 and motor outer end cap 16; Both respectively are supported on the two ends of axle 1 through a bearing I 14; Said ring gear 12 is fixedly installed in the inner surface of outer wheel hub casing 13, utilizes planetary gear reducing mechanism drive ring gear 12 and outer wheel hub casing 13 to rotate together.
The operation principle of present embodiment is following: after coil 17 energisings; Around axle 1 high speed rotating, central gear 10 drives next in rotor sleeve 2 and plays rotation rotor sleeve 2 with rotor core 4, rotates thereby drive planetary gear 11; This moment is because planet carrier 8 is fixing; Planetary gear 11 only rotates around planet axis 9, and utilizes planetary gear 11 to drive ring gear 12 and rotate, and finally realizes the rotation of outer wheel hub casing 13 and motor outer end cap 16.
Claims (6)
1. brushless mid-wheel hub motor; Comprise axle (1), motor, be used to reduce the also planetary gear reducing mechanism of output of motor speed; And the wheel hub that is supported on axle (1) two ends through bearing I (14); Wherein motor and planetary gear reducing mechanism integral body are positioned at wheel hub inside, it is characterized in that: said motor is the mid-inner rotor motor of rotor; Said planetary gear reducing mechanism comprises the planet carrier (8) that is fixedly installed on the motor stator casing (6), the central gear (10) that is directly driven by motor, the ring gear (12) that is fixedly installed in the wheel hub inner surface; And while and central gear (10) and ring gear (12) planet gear meshed (11); Wherein planet carrier (8) is gone up a fixed installation planet axis (9), and planetary gear (11) is installed on this planet axis through coaxial bearing.
2. brushless mid-wheel hub motor according to claim 1; It is characterized in that: said motor comprises and is coaxially installed on that axle (1) goes up and can be around its axis rotor sleeve (2) in relative rotation; And be fixedly installed in the stator cage (6) on the axle (1); Wherein rotor sleeve (2) outer surface is equipped with rotor core (4), and pastes magnet steel (5) at this rotor core outer surface, and stator cage (6) inner surface has pressed solidly stator core (7) and coil (17); Said central gear (10) is coaxially installed on the rotor sleeve (2).
3. brushless mid-wheel hub motor according to claim 2 is characterized in that: said planet carrier (8) is supported on the rotor sleeve (2) through bearing II (15).
4. according to claim 2 or 3 described brushless mid-wheel hub motors; It is characterized in that: said rotor sleeve (2) one ends are supported on the stator cage (6) through the bearing III (3) that is coaxially installed on its outer surface, and the other end is supported on the axle (1) through the bearing IV (19) that is coaxially installed on its inner surface.
5. according to claim 1 or 2 or 3 described brushless mid-wheel hub motors; It is characterized in that: said wheel hub comprises interconnective outer wheel hub casing (13) and motor outer end cap (16); Both respectively are supported on the two ends of axle (1) through a bearing I (14), said ring gear (12) is fixedly installed in the inner surface of outer wheel hub casing (13).
6. according to claim 1 or 2 or 3 described brushless mid-wheel hub motors, it is characterized in that: said axle (1) two ends are processed with mounting plane, and wherein an end has and is convenient to groove and the deep hole that motor lead-out wire (18) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220124640XU CN202602457U (en) | 2012-03-29 | 2012-03-29 | A brushless in-wheel motor with a built-in rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220124640XU CN202602457U (en) | 2012-03-29 | 2012-03-29 | A brushless in-wheel motor with a built-in rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602457U true CN202602457U (en) | 2012-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220124640XU Expired - Fee Related CN202602457U (en) | 2012-03-29 | 2012-03-29 | A brushless in-wheel motor with a built-in rotor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202602457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112863A (en) * | 2019-03-19 | 2019-08-09 | 王召伟 | A kind of band concentric gear brushless motor |
-
2012
- 2012-03-29 CN CN201220124640XU patent/CN202602457U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112863A (en) * | 2019-03-19 | 2019-08-09 | 王召伟 | A kind of band concentric gear brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130329 |