CN203859663U - Brushless DC motor for running machine - Google Patents
Brushless DC motor for running machine Download PDFInfo
- Publication number
- CN203859663U CN203859663U CN201420292328.0U CN201420292328U CN203859663U CN 203859663 U CN203859663 U CN 203859663U CN 201420292328 U CN201420292328 U CN 201420292328U CN 203859663 U CN203859663 U CN 203859663U
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- CN
- China
- Prior art keywords
- magnet steel
- rotating shaft
- rotor core
- motor
- belt pulley
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a brushless DC motor for a running machine. The brushless DC motor comprises a casing (11), a stator core (7), a stator winding (6), a rotor core (9), a rotating shaft (2) and magnetic steels (8); the stator winding (6) is embedded in the stator core (7); the rotor core (9) is formed by superposing and fixing punching sheets; the rotating shaft (2) is fixedly connected with the rotor core (9); the rotating shaft (2) is rotatably disposed on the casing (11) through bearings (5); magnetic steel slots (10) having an even number are uniformly distributed in the rotor core (9); the magnetic steels (8) are correspondingly embedded in the magnetic steel slots (10) respectively so as to form a magnetic steel sheath (13) with a uniform thickness on external surfaces of the magnetic steels (8); a magnetic steel separator plate (14) having a uniform thickness is disposed between adjacent magnetic steels (8); a belt pulley (1) and a cooling fan (4) are fixed on the rotating shaft (2); and a flywheel (3) integrated with the belt pulley (1) is fixed on the belt pulley (1). After the structure is employed, the brushless DC motor has the advantages of simple and reasonable structure, convenient production and machining, stationary starting, reliable operation and light noise and the like.
Description
Technical field
The utility model relates to a kind of brshless DC motor, the brshless DC motor that particularly a kind of treadmill is used.
Background technology
Current most of treadmill uses has brushless motor as power, exist that brush is fragile, the easy heating burnout of motor, useful life short problem.But generally by adhesive, fix between the magnet steel on existing brushless DC motor rotor and rotor core, adopt that this is simple and practical, production and processing is convenient, but weak point is to produce the impact of variations in temperature and adhesive natural aging owing to turned round for a long time by motor, bonding force between magnet steel and rotor core slowly produces degeneration, under the centrifugal action producing at motor High Rotation Speed, permanent magnet will produce and come off, and causes electrical fault, cannot run well.For this reason, people have developed a kind of brshless DC motor, by the outer surface at rotor core, be evenly distributed with the trapezoidal wedge groove of even number, magnet steel correspondence is embedded in this slot, the latch of interference fit is set on the voussoir between adjacent trapezoidal wedge groove, can be fine solve between magnet steel and rotor core and be connected unstable problem, magnet steel comes off never, has greatly extended motor useful life; But adopt after this structure, treadmill is when machine operation, and due to non-uniform air-gap between rotor and stator, when rotor rotates, changes of magnetic field is large, and the induced electromotive force harmonic wave of existence is large, causes motor to produce vibration and noise, even cisco unity malfunction.For this reason, many manufacturers and knowledgeable people are studied and develop for the problems referred to above, but not yet have so far more rational product to emerge.
Summary of the invention
For overcoming the above-mentioned disadvantage that brshless DC motor exists for existing treadmill, the purpose of this utility model be to provide a kind of simple and reasonable, production and processing convenient, start the treadmill brshless DC motor steady, reliable, noise is light.
The utility model solves the technical scheme that its technical problem adopts, it comprises casing, stator core, stator winding, rotor core, rotating shaft and magnet steel, stator core is fixedly formed and is fixed in casing by punching stack, stator winding is embedded on stator core, rotor core is fixedly formed by punching stack, rotating shaft is fixedly connected with rotor core, rotating shaft is arranged on casing by bearing rotationally, on described rotor core, be evenly distributed with even number magnet steel slot, magnet steel correspondence is embedded in each magnet steel slot, make magnet steel outer surface form the uniform magnet steel sheath of thickness, between adjacent magnet steel, there is the uniform magnet steel dividing plate of thickness.
Further scheme of the present utility model, fixedly belt pulley and cooling fan in described rotating shaft, be fixed with the flywheel being connected as a single entity on belt pulley.
Further scheme of the present utility model, described magnet steel is circular arc tile body.
Adopt after said structure, the utility model has the following advantages and effect: the one, and because magnet steel correspondence is embedded in magnet steel slot, magnet steel is installed simple and convenient, guarantees that magnet steel can not come off when motor High Rotation Speed; The 2nd, the magnet steel jacket surface precision of rotor core is high, evenness good, and between rotor and stator, air gap uniform gap is little, and magnet steel sheath can make magnetic field smooth transition, and steadily, reliable, sound is light in starting, thereby solves the problem that produces vibration and noise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model rotor.
Wherein, 1 belt pulley, 2 rotating shafts, 3 flywheels, 4 cooling fans, 5 bearings, 6 stator winding, 7 stator cores, 8 magnet steel, 9 rotor cores, 10 magnet steel slots, 11 casings, 12 string nails, 13 magnet steel sheaths, 14 magnet steel dividing plates.
Embodiment
Shown in Fig. 1 and Fig. 2, for the specific embodiments of the utility model treadmill with brshless DC motor, it comprises casing 11, stator core 7, stator winding 6, rotor core 9, rotating shaft 2 and magnet steel 8, stator core 7 fixedly forms and is fixed in casing 11 by punching stack, stator winding 6 is embedded on stator core 7, rotor core 9 is superposeed by punching and follows closely 12 by string and fixedly forms, rotating shaft 2 is fixedly connected with rotor core 9, rotating shaft 2 is arranged on casing 11 rotationally by bearing 5, on described rotor core 9, be evenly distributed with even number magnet steel slot 10, described magnet steel 8 is circular arc tile body, magnet steel 8 correspondences are embedded in each magnet steel slot 10, make magnet steel 8 outer surfaces form the uniform magnet steel sheath 13 of thickness, between adjacent magnet steel 8, there is the uniform magnet steel dividing plate 14 of thickness, make rotor core 7 processing convenient, magnet steel sheath 13 surface accuracies are high, evenness is good, between rotor and stator, air gap uniform gap is little, magnetic field smooth transition during machine operation.
In order to improve the stability of machine operation and to flash effect, and fixedly belt pulley 1 and cooling fan 4 in described rotating shaft 2, on belt pulley 1, be fixed with the flywheel 3 being connected as a single entity.
The above; be an embodiment of the present utility model, not the utility model made to any pro forma restriction, do not departing from the technical solution of the utility model basis; the simple modification of having done, equivalent variations or modification, all fall into protection range of the present utility model.
Claims (3)
1. a treadmill brshless DC motor, comprise casing (11), stator core (7), stator winding (6), rotor core (9), rotating shaft (2) and magnet steel (8), stator core (7) fixedly forms and is fixed in casing (11) by punching stack, stator winding (6) is embedded on stator core (7), rotor core (9) is fixedly formed by punching stack, rotating shaft (2) is fixedly connected with rotor core (9), rotating shaft (2) is arranged on casing (11) rotationally by bearing (5), it is characterized in that: on described rotor core (9), be evenly distributed with even number magnet steel slot (10), magnet steel (8) correspondence is embedded in each magnet steel slot (10), make magnet steel (8) outer surface form the uniform magnet steel sheath of thickness (13), between adjacent magnet steel (8), there is the uniform magnet steel dividing plate of thickness (14).
2. treadmill brshless DC motor according to claim 1, is characterized in that: described rotating shaft (2) upper fixedly belt pulley (1) and cooling fan (4), be fixed with the flywheel (3) being connected as a single entity on belt pulley (1).
3. according to treadmill brshless DC motor described in claim 1 or 2, it is characterized in that: described magnet steel (8) is circular arc tile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292328.0U CN203859663U (en) | 2014-06-04 | 2014-06-04 | Brushless DC motor for running machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292328.0U CN203859663U (en) | 2014-06-04 | 2014-06-04 | Brushless DC motor for running machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859663U true CN203859663U (en) | 2014-10-01 |
Family
ID=51609498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292328.0U Expired - Fee Related CN203859663U (en) | 2014-06-04 | 2014-06-04 | Brushless DC motor for running machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659999A (en) * | 2015-02-13 | 2015-05-27 | 长沙启科电子有限公司 | Built-in double-insulation brushless direct-current motor used for high-power electric breaker |
-
2014
- 2014-06-04 CN CN201420292328.0U patent/CN203859663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104659999A (en) * | 2015-02-13 | 2015-05-27 | 长沙启科电子有限公司 | Built-in double-insulation brushless direct-current motor used for high-power electric breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171120 Address after: One or two building 33, Changsheng Road, Hengdian Town, Zhejiang, Dongyang, 322100 Patentee after: Dongyang Chuang Sheng Electrical Machinery Co.,Ltd. Address before: 321313 Zhejiang city of Jinhua province Yongkang Xiangzhu town Qing Wei Jie Sheng Ping Road, building 217, boma Technology Patentee before: Ma Jialiang |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |