CN102570758A - Novel disk type external rotor direct-current brushless motor - Google Patents
Novel disk type external rotor direct-current brushless motor Download PDFInfo
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- CN102570758A CN102570758A CN2010106225424A CN201010622542A CN102570758A CN 102570758 A CN102570758 A CN 102570758A CN 2010106225424 A CN2010106225424 A CN 2010106225424A CN 201010622542 A CN201010622542 A CN 201010622542A CN 102570758 A CN102570758 A CN 102570758A
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- external rotor
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- type external
- current brushless
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Abstract
The invention relates to a motor, in particular relates to a novel disk type external rotor direct-current brushless motor which is mainly used on an electric vehicle. The novel disk type external rotor direct-current brushless electric machine mainly comprises a flange plate base, a motor stator, a disk type outer rotor and an intermediate shaft, wherein the motor stator is fixed on the flange plate base through a screw, the disk type outer rotor is connected with the intermediate shaft through an intermediate shaft lock nut and a location pin, the disk type outer rotor is buckled outside the motor stator, and the intermediate shaft penetrates a motor stator center bearing and a flange plate base center bearing and extends out of the center of the flange base so that the novel disk type external rotor direct-current brushless motor is formed. According to the novel disk type external rotor direct-current brushless motor, friction and electric energy loss between a direct-current brush motor carbon brush and a communtator are eliminated, and defects that an internal rotor direct-current brushless motor has small torque and a poor heat radiation effect and an external rotor hub direct-current brushless motor has large torque and a good heat radiation effect but is free from intermediate shaft output are overcome. The novel disk type external rotor direct-current brushless electric machine has the advantages of simple manufacture process, high efficiency, large torque, easiness for heat radiation, intermediate shaft output and convenience for installation and use.
Description
Technical field
The present invention relates to a kind of direct current machine, mainly refer to a kind of novel disc type external rotor dc brushless motor of using above the electric motor car.
Background technology
At present, along with the continuous growth of oil price and a large amount of dischargings of vehicle exhaust, a kind of novel walking-replacing tool battery-operated motor cycle, electric automobile will move towards market; The not only environmental protection but also energy-conservation of this car; Create considerable economic can for society, still, battery-operated motor cycle, mostly adopt the internal rotor dc brushless motor above the electric automobile; External rotor wheel hub dc brushless motor, brush direct current motor.Though these three types of motors respectively have advantage, battery-operated motor cycle and electric automobile but all exist corresponding not enough relatively; Be unfavorable for the speed-raising of electric motor car and the repacking of existing vehicle, if any the brush motor speed when high carbon brush easy to wear, ablate, reduce electric efficiency; When the internal rotor direct current brushless motor speed was high, moment of torsion was little, though external rotor wheel hub dc brushless motor moment of torsion is big; But there is not mid-output; And can not too highly raise speed, therefore, brush direct current motor, inner-rotor brushless direct current machine, external rotor wheel hub dc brushless motor all are not suitable for assembling the high speed electric car.
Summary of the invention
The purpose of this invention is to provide a kind of novel disc type external rotor dc brushless motor, the moment of torsion that has at the original external rotor wheel hub dc brushless motor of reservation is big, is easy to heat radiation; Under the high preceding topic of efficient; Make this external rotor wheel hub dc brushless motor have mid-axle output, the external rotor wheel hub becomes the web-type flywheel structure, thereby has increased the moment of torsion of external rotor dc brushless motor; During the motor high-speed cruising, moment of torsion is bigger.
For realizing above-mentioned purpose, a kind of novel disc type external rotor dc brushless motor of the present invention is made up of ring flange base, motor stator, disc type external rotor, mid-axle, motor stator central authorities bearing, ring flange base central authorities bearing, stator coil, magnetic cylinder, screw, screw hole, wire hole, axis locknut, alignment pin; Motor stator is fixed on the ring flange base through screw; Motor stator central authorities bearing is embedded in the central authorities of motor stator; Ring flange central authorities bearing is embedded in the central authorities of ring flange base, and the disc type external rotor covers on the motor stator and through the axis locknut and links to each other with mid-axle with alignment pin, and mid-axle passes motor stator central authorities' bearing and ring flange base central authorities bearing; Central authorities in ring flange one side stretch out, and form a kind of tray type structure.
Owing to adopted such scheme: the disc type external rotor can do the thick intermediate thin in the big edge of diameter; Have big rotator inertia and running speed; Changed the structure of existing dc brushless motor; Have mid-axle output, thereby the carbon brush that has solved brush motor weares and teares, moment of torsion was little when the internal rotor direct current brushless motor speed was high, the little problem of moment of torsion when external rotor wheel hub dc brushless motor does not have mid-axle output to run up; Make disc type external rotor dc brushless motor have rotating speed height, big, the mid-axle output of moment of torsion, be fit to assembling high speed electric car.
Description of drawings
Fig. 1 is the structural representation of a kind of disc type external rotor dc brushless motor embodiment of the present invention.
Fig. 2 is the ring flange understructure sketch map of a kind of novel disc type external rotor dc brushless motor embodiment of the present invention.
Among Fig. 1: 1, ring flange base 2, motor stator 3, disc type external rotor 4, mid-axle 5, stator central authorities bearing 6, ring flange base central authorities bearing 7, stator coil 8, magnetic cylinder 9, screw 10, screw hole 11, wire hole 12, axis locknut 13, alignment pin.
Among Fig. 2: 1, ring flange base 2, screw hole 3, screw 4, wire hole 5, ring flange central authorities bearing 6, mid-axle.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode the present invention is done further detailed description.
Present embodiment comprises ring flange base 1, motor stator 2, disc type external rotor 3, mid-axle 4, as shown in Figure 1; Wherein: motor stator 2 is fixed on the ring flange base 1 through screw 9; Motor stator central authorities bearing 5 is embedded on the center hub of motor stator 2; Ring flange central authorities bearing 6 is embedded on the center hub of ring flange base 1; Disc type external rotor 3 covers on the electronics stator and passes through axis locknut 12 and links to each other with mid-axle 4 with alignment pin 13, and mid-axle 4 passes stator central authorities bearing 5 and stretches out at the center of ring flange base 1 with the central bearing 6 of ring flange, and magnetic cylinder 8 is embedded in the inboard of disc type external rotor 3; Stator coil 7 is on motor stator 2, and ring flange base 1 is provided with wire hole 11.
Claims (2)
1. novel disc type external rotor dc brushless motor; Comprise bearing (5) ring flange base central authorities of the mid-axle of ring flange base (1) motor stator (2) disc type external rotor (3) (4) motor stator central authorities bearing (6) stator coil (7) magnetic cylinder (8) screw (9) screw hole (10) wire hole (11) axis locknut (12) alignment pin (13), it is characterized in that: the outside of motor stator (2) is with disc type external rotor (3).
2. according to the described a kind of novel disc type external rotor dc brushless motor of claim 1; It is characterized in that: mid-axle (4) links to each other with disc type external rotor (3) with alignment pin (13) through axis locknut (12), and passes the central bearing (5) of stator and the central bearings of ring flange (6) stretch out in the central authorities of ring flange base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106225424A CN102570758A (en) | 2010-12-31 | 2010-12-31 | Novel disk type external rotor direct-current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106225424A CN102570758A (en) | 2010-12-31 | 2010-12-31 | Novel disk type external rotor direct-current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102570758A true CN102570758A (en) | 2012-07-11 |
Family
ID=46415419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106225424A Pending CN102570758A (en) | 2010-12-31 | 2010-12-31 | Novel disk type external rotor direct-current brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102570758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110925A (en) * | 2017-12-14 | 2018-06-01 | 叶露微 | Permanent magnet motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374737A (en) * | 2001-03-13 | 2002-10-16 | 本田技研工业株式会社 | External rotor brushless motor structure |
| US20040135462A1 (en) * | 2002-12-25 | 2004-07-15 | Ogura Masayuki | Spindle motor |
| CN2847669Y (en) * | 2005-11-05 | 2006-12-13 | 深圳市仓兴达科技有限公司 | Permanent magnet DC brushless motor with sensor |
| CN201018379Y (en) * | 2007-02-08 | 2008-02-06 | 王广然 | Novel disk type external rotor DC brushless motor |
-
2010
- 2010-12-31 CN CN2010106225424A patent/CN102570758A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1374737A (en) * | 2001-03-13 | 2002-10-16 | 本田技研工业株式会社 | External rotor brushless motor structure |
| US20040135462A1 (en) * | 2002-12-25 | 2004-07-15 | Ogura Masayuki | Spindle motor |
| CN2847669Y (en) * | 2005-11-05 | 2006-12-13 | 深圳市仓兴达科技有限公司 | Permanent magnet DC brushless motor with sensor |
| CN201018379Y (en) * | 2007-02-08 | 2008-02-06 | 王广然 | Novel disk type external rotor DC brushless motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110925A (en) * | 2017-12-14 | 2018-06-01 | 叶露微 | Permanent magnet motor |
| CN108110925B (en) * | 2017-12-14 | 2021-06-08 | 汉宇集团股份有限公司 | Permanent magnet motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |