CN100426626C - Brushless non-core motor - Google Patents
Brushless non-core motor Download PDFInfo
- Publication number
- CN100426626C CN100426626C CNB021600538A CN02160053A CN100426626C CN 100426626 C CN100426626 C CN 100426626C CN B021600538 A CNB021600538 A CN B021600538A CN 02160053 A CN02160053 A CN 02160053A CN 100426626 C CN100426626 C CN 100426626C
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- CN
- China
- Prior art keywords
- motor
- permanent magnet
- stator
- motor housing
- dead axle
- 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
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- Brushless Motors (AREA)
- Windings For Motors And Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a new motor without a brush or an iron core, which has no iron core. The present invention has the technical scheme that the essential resistance of a stator coil is small, and thus, the motor has the advantages of high efficiency, low heat productivity, simple structure and good heat balance condition; the present invention is particularly suitable for producing high-efficiency motors. The motor has the structure that a motor fixed shaft (5) is supported by a motor support frame (8), and a motor casing (4) is supported by the motor fixed shaft (5) through a bearing (7); a plurality of pairs of permanent magnets (2) are fixed to the both end surfaces of the inner part of the motor casing (4) in the shaft direction; a wire winding stator (3) without an iron core is arranged among the permanent magnets (2), and the stator (3) is fixed to the motor fixed shaft (5).
Description
Technical field
The invention belongs to machine field, the present invention relates to a kind of motor, especially a kind of brushless coreless permanent magnet disc motor.
Background technology
The existing traditional electrical machine all has bigger copper loss and iron loss, and this has influenced the raising of electric efficiency widely, and amount is excessive to make also that the motor feels hot, and then also influences its dependability.
Summary of the invention
In order to overcome the above-mentioned shortcoming of existing traditional electrical machine, the invention provides a kind of brushless coreless motor, this motor does not have iron core, and designed in addition stator coil internal resistance is minimum, and therefore, this motor is the efficient height not only, and caloric value is extremely low.This electric machine structure is simple, the heat balance condition is good, is particularly suitable for making high efficiency electric.
The technical solution adopted for the present invention to solve the technical problems is:
Stator coil closely is connected with motor metal dead axle, thereby has increased the thermal capacitance of stator coil greatly; And the heat of coil is distributed by the ventilating heat dissipating hole on the motor metal shell that exposes, ventilating heat dissipating hole is divided into fresh air inlet and exhaust vent, fresh air inlet is positioned near on the motor metal shell of motor dead axle, exhaust vent is positioned on the motor metal shell away from the motor dead axle, and these measures can improve the power density of motor greatly.
With stator that motor metal dead axle links to each other outside be provided with motor outer rotor, external rotor is made by ferromagnetic substance, be fixed with on the internal rotor axial end outside some to permanent magnet, by attracting each other and supporting and keep suitable air gap with stator coil by step motor dead axle.Stator does not have core structure for the wire-wound disc type, drives the motor housing that is supported on the motor dead axle and rotate and power output when energising.
The invention has the beneficial effects as follows:
1) therefore no iron core does not have iron loss.
2) internal resistance of disc type stator coil is extremely low, so caloric value is little.
3) two-sided yoke can be gathered magnetic by the iron motor housing, has improved the magnetic energy utilization rate.
4) electric efficiency height.
5) the output torque is big.
6) no slot effect.
7) rotating speed is steady.
Description of drawings
Further specify specific structural features of the present invention below in conjunction with Figure of description and embodiment.
Fig. 1 is the overall installation diagram of brushless coreless motor of the present invention.
Fig. 2 is the stator schematic diagram of brushless coreless motor of the present invention.
Fig. 3 is the rotor schematic diagram of brushless coreless motor of the present invention.
Embodiment
In Fig. 1, metal outer ring 1 links to each other with motor housing 4, and it is the part of motor housing 4, and it plays adjustment, connects the effect of motor housing; Permanent magnet 2 is connected on the iron motor housing 4; Stator 3 produces required rotating magnetic field; Motor housing 4 rotates under the effect of the rotating magnetic field of stator 3; Be fixedly connected with stator 3 on the motor dead axle 5; Power out splice going splice 6 is connected with motor housing 4; Bearing 7 is fixed on the motor dead axle 5 and support motor shell 4 rotates; Motor dead axle 5 is supported on the electric machine support 8, and electric machine support 8 is selected different forms according to practical situations; The lead-out wire 11 of coil windings will be connected with power supply; Motor internal heat evacuation aperture 9 is positioned at the outer of motor housing 4, and the hot-air of motor internal is discharged by its; The through hole 10 that cool exterior air enters motor internal be positioned on the motor housing 4 the side and near motor dead axle 5.
In Fig. 2, stator 3 is made up of coil windings 12 and thermosetting material body 13, and coil windings 12 is solidificated in the thermosetting material body 13; The lead-out wire 11 of coil windings is connected with coil windings 12.Coil windings 12 is made up of three coils 14,15,16, and they are continuous S types, and its crest number is identical with the permanent magnet number; Three coils 14,15,16 angle that staggers successively is 360 degree/permanent magnet number/3, and for example, when the permanent magnet number was 8, then three coils 14,15,16 angle that staggers successively was 15 degree.
In Fig. 3, be fixed with permanent magnet 2 on the motor housing 4; The N of permanent magnet, the S utmost point are alternately distributed; The number of permanent magnet is 4 multiple, as 4,6,8,10,12 etc.; The shape of permanent magnet is a rhombus.
The operation principle of this embodiment as shown in Figure 1 to Figure 3, driver with power supply or this motor gives the stator coil winding 12 power supplies by lead-out wire 11, form rotating magnetic field, this rotating magnetic field acts on the permanent magnet 2 on both sides, make it drive motor housing 4 and 6 rotations of power out splice going splice, and output motor power.
Claims (3)
1. brushless coreless motor, it is characterized in that: motor dead axle (5) is supported on the electric machine support (8), and motor housing (4) is supported on the motor dead axle (5) by bearing (7); Motor housing (4) is made by the iron material, and the inner shaft of motor housing (4) is fixed with some to permanent magnet (2) on both ends of the surface, is stator (3) in the centre of permanent magnet (2), and stator (3) is fixed on the motor dead axle (5); Metal outer ring (1) links to each other with motor housing (4), and metal outer ring (1) is the part of motor housing (4); Coil windings lead-out wire (11) is drawn from motor dead axle (5) and is connected with power supply; Motor internal heat evacuation aperture (9) is positioned at the outer of motor housing (4); The through hole (10) that cool exterior air enters motor internal is positioned at the part that is parallel to motor dead axle (5) on the iron motor housing (4).
2. a kind of brushless coreless motor according to claim 1 is characterized in that: its stator (3) is made up of coil windings (12), thermosetting material body (13), and coil windings (12) is solidificated in the thermosetting material body (13); Coil windings (12) is made up of three coils, and three coils are continuous S types, and its crest number is identical with the permanent magnet number; The angle that three coils stagger successively be 360 degree divided by the permanent magnet number again divided by 3.
3. a kind of brushless coreless motor according to claim 1 is characterized in that: the number of permanent magnet is 4 multiple; The shape of permanent magnet is a rhombus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021600538A CN100426626C (en) | 2002-12-25 | 2002-12-25 | Brushless non-core motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021600538A CN100426626C (en) | 2002-12-25 | 2002-12-25 | Brushless non-core motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1510816A CN1510816A (en) | 2004-07-07 |
| CN100426626C true CN100426626C (en) | 2008-10-15 |
Family
ID=34237738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021600538A Expired - Fee Related CN100426626C (en) | 2002-12-25 | 2002-12-25 | Brushless non-core motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100426626C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527425B (en) * | 2013-10-31 | 2016-04-20 | 中煤科工集团重庆研究院有限公司 | Mining emergency physical power generation device |
| CN107979215A (en) * | 2017-12-29 | 2018-05-01 | 湖南德益伟节能科技有限公司 | A kind of ventilated disc motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373207A (en) * | 1993-09-17 | 1994-12-13 | Tokyo Parts Industrial Co., Ltd. | Brushless vibrator motor for a wireless silent alerting device |
| JPH0956131A (en) * | 1995-08-11 | 1997-02-25 | Hitachi Koki Co Ltd | Coreless brushless motor |
| CN2443532Y (en) * | 2000-07-20 | 2001-08-15 | 张习斌 | Efficient high-specific energy laminated permanent-magnet non-iron core brushless electric machine |
| CN1356759A (en) * | 2001-12-20 | 2002-07-03 | 华中科技大学 | Brushless DC motor with permanent-magnet disk and no n-iron core |
| CN2655496Y (en) * | 2002-12-25 | 2004-11-10 | 王和平 | Brushless coreless electric machine |
-
2002
- 2002-12-25 CN CNB021600538A patent/CN100426626C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5373207A (en) * | 1993-09-17 | 1994-12-13 | Tokyo Parts Industrial Co., Ltd. | Brushless vibrator motor for a wireless silent alerting device |
| JPH0956131A (en) * | 1995-08-11 | 1997-02-25 | Hitachi Koki Co Ltd | Coreless brushless motor |
| CN2443532Y (en) * | 2000-07-20 | 2001-08-15 | 张习斌 | Efficient high-specific energy laminated permanent-magnet non-iron core brushless electric machine |
| CN1356759A (en) * | 2001-12-20 | 2002-07-03 | 华中科技大学 | Brushless DC motor with permanent-magnet disk and no n-iron core |
| CN2655496Y (en) * | 2002-12-25 | 2004-11-10 | 王和平 | Brushless coreless electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1510816A (en) | 2004-07-07 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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