CN105262260A - Brushless DC motor with asymmetric winding - Google Patents
Brushless DC motor with asymmetric winding Download PDFInfo
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- CN105262260A CN105262260A CN201510673638.6A CN201510673638A CN105262260A CN 105262260 A CN105262260 A CN 105262260A CN 201510673638 A CN201510673638 A CN 201510673638A CN 105262260 A CN105262260 A CN 105262260A
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Abstract
The invention discloses a brushless DC motor with an asymmetric winding. The brushless DC motor with the asymmetric winding comprises the components of a housing, a front end cap, a back end cap, a stator, a rotor, a circuit board assembly, a sensor rotor, a sensor back cover, a connector base and an electric connector. The stator is bonded in the housing. The stator comprises a stator core and a winding. The stator core is provided with stator trough structures. The winding is inlayed in the stator trough structures asymmetrically. According to the stator winding of the brushless DC motor with the asymmetric winding, a parallel winding manner of a plurality of enameled wires is adopted, thereby greatly enlarging a motor current. Under a precondition that the motor size is unchanged, motor power is remarkably improved. For realizing small-amplitude adjustment on the working rotating speed of the motor in a certain range, the numbers-of-turns of the winding in the troughs are different from one another. The asymmetric winding is equivalent with a fractional number-of-turns winding, thereby realizing continuous and adjustable rotating speed of the motor, and ensuring a fact that the motor satisfies a technical requirement.
Description
Technical field
The present invention relates to structural design and the applied technical field of motor, specifically provide a kind of brushless DC motor of asymmetric winding.
Background technology
Existing brushless DC motor is long-term work, and its current density is lower, and stator winding generally adopts single enamelled wire (44) coiling, and the power output of motor is restricted.Stator every groove umber of turn is all identical, and motor speed Adjustment precision is lower.
People urgently wish the brushless DC motor obtaining the excellent asymmetric winding of a kind of technique effect.
Summary of the invention
The object of this invention is to provide the brushless DC motor of the excellent asymmetric winding of a kind of technique effect.
The brushless DC motor of described asymmetric winding is constructed as follows: housing 1, front end housing 2, rear end cap 3, stator 4, rotor 5, circuit board assemblies 6, rotor sensor 7, transducer bonnet 8, connector base 9 and electric connector 10; Stator 4 is bonded in the inside of housing 1, and described stator 4 comprises stator core 41 and winding 42; Stator core 41 is provided with stator slot structure 43, winding 42 is asymmetric to be embedded in stator slot structure 43, winding 42 is formed by enamelled wire 44 coiling, described front end housing 2 and rear end cap 3 are fixedly connected on the two ends of housing 1 respectively, rotor 5 is connected with rear end cap 3 with front end housing 2, and rotor assembly is coordinated with front end housing, rear end cap by bearing.Circuit board assemblies is fixed on rear end cap by screw, and rotor sensor 7 is connected with rotor 5 by nut.Transducer bonnet 8 covers on the outside of rotor sensor 7, and connector base 9 is fixedly connected on housing 1, and electric connector 10 is connected on connector base 9.
1 circle winding 42 is by 2 enamelled wires 44 also winding one-tenth.Can winding area be increased considerably, carry larger motor working current, increase power of motor.
Described stator core 41 is provided with 12 stator slot structures 43, wherein in 8 stator slot structures 43, winding 42 number of turn is 2 circles, and in 4 stator slot structures 43, winding 42 number of turn is 3 circles.The brushless DC motor of described asymmetric winding has umber of turn 28 circle, and every groove mean turn is
circle is the mark number of turn, and by adjusting the groove number of 3 circle windings, stator winding every groove mean turn can be different mark, and the change of umber of turn is more small, realizes motor speed continuous setup.
Traditional stator winding is by single enamelled wire coiling, and every groove number of turn is all identical, and umber of turn is the enamelled wire radical of coiling in groove, see accompanying drawing 2.
The brushless DC motor of described asymmetric winding has that volume is little, rotating speed is high, efficiency is high, be easy to the many merits such as control, is widely used in the fields such as space flight and aviation, track traffic, electric locomotive, precision machine tool.During brushless DC motor work, external dc power supply, the magnetic field interaction that in winding, electric current and permanent magnet produce and produce electromagnetic torque, rotor rotates under the influence of this torque, rotor rotarily drives transducer magnet ring and rotates, rotor rotating magnetic field is converted into level position signalling by Hall element, and driver according to fixing sequential turn-on, realizes electric motors function according to position signalling controlled winding.
The stator winding of the brushless DC motor of described asymmetric winding adopts many enamelled wires and around form, significantly increases current of electric.Under realizing the constant prerequisite of motor volume, power of motor has obvious lifting.Adjust by a small margin within the specific limits to realize machine operation rotating speed, stator winding number of turn in each groove is all not identical, and this Unsymmetrical Winding is equivalent to mark number of turn winding, realizes motor speed continuously adjustabe, ensures that motor meets technical requirement.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the brushless DC motor configurations schematic diagram of asymmetric winding;
Fig. 2 is conventional motors stator structure figure;
Fig. 3 is stator structure figure of the present invention.
Embodiment
Embodiment 1
The brushless DC motor of described asymmetric winding is constructed as follows: housing 1, front end housing 2, rear end cap 3, stator 4, rotor 5, circuit board assemblies 6, rotor sensor 7, transducer bonnet 8, connector base 9 and electric connector 10; Stator 4 is bonded in the inside of housing 1, and described stator 4 comprises stator core 41 and winding 42; Stator core 41 is provided with stator slot structure 43, winding 42 is asymmetric to be embedded in stator slot structure 43, winding 42 is formed by enamelled wire 44 coiling, described front end housing 2 and rear end cap 3 are fixedly connected on the two ends of housing 1 respectively, rotor 5 is connected with rear end cap 3 with front end housing 2, and rotor assembly is coordinated with front end housing, rear end cap by bearing.Circuit board assemblies is fixed on rear end cap by screw, and rotor sensor 7 is connected with rotor 5 by nut.Transducer bonnet 8 covers on the outside of rotor sensor 7, and connector base 9 is fixedly connected on housing 1, and electric connector 10 is connected on connector base 9.
1 circle winding 42 is by 2 enamelled wires 44 also winding one-tenth.Can winding area be increased considerably, carry larger motor working current, increase power of motor.
Described stator core 41 is provided with 12 stator slot structures 43, wherein in 8 stator slot structures 43, winding 42 number of turn is 2 circles, and in 4 stator slot structures 43, winding 42 number of turn is 3 circles.The brushless DC motor of described asymmetric winding has umber of turn 28 circle, and every groove mean turn is
circle is the mark number of turn, and by adjusting the groove number of 3 circle windings, stator winding every groove mean turn can be different mark, and the change of umber of turn is more small, realizes motor speed continuous setup.
Traditional stator winding is by single enamelled wire coiling, and every groove number of turn is all identical, and umber of turn is the enamelled wire radical of coiling in groove, see accompanying drawing 2.
The brushless DC motor of described asymmetric winding has that volume is little, rotating speed is high, efficiency is high, be easy to the many merits such as control, is widely used in the fields such as space flight and aviation, track traffic, electric locomotive, precision machine tool.During brushless DC motor work, external dc power supply, the magnetic field interaction that in winding, electric current and permanent magnet produce and produce electromagnetic torque, rotor rotates under the influence of this torque, rotor rotarily drives transducer magnet ring and rotates, rotor rotating magnetic field is converted into level position signalling by Hall element, and driver according to fixing sequential turn-on, realizes electric motors function according to position signalling controlled winding.
The stator winding of the brushless DC motor of described asymmetric winding adopts many enamelled wires and around form, significantly increases current of electric.Under realizing the constant prerequisite of motor volume, power of motor has obvious lifting.Adjust by a small margin within the specific limits to realize machine operation rotating speed, stator winding number of turn in each groove is all not identical, and this Unsymmetrical Winding is equivalent to mark number of turn winding, realizes motor speed continuously adjustabe, ensures that motor meets technical requirement.
Claims (3)
1. a brushless DC motor for asymmetric winding, is characterized in that: the brushless DC motor of described asymmetric winding is constructed as follows: housing (1), front end housing (2), rear end cap (3), stator (4), rotor (5), circuit board assemblies (6), rotor sensor (7), transducer bonnet (8), connector base (9) and electric connector (10), stator (4) is bonded in the inside of housing (1), and described stator (4) comprises stator core (41) and winding (42), stator core (41) is provided with stator slot structure (43), winding (42) is asymmetric to be embedded in stator slot structure (43), winding (42) is formed by enamelled wire (44) coiling, described front end housing (2) and rear end cap (3) are fixedly connected on the two ends of housing (1) respectively, rotor (5) is connected with rear end cap (3) with front end housing (2), circuit board assemblies is fixed on rear end cap (3), rotor sensor (7) is connected with rotor (5), transducer bonnet (8) covers on the outside of rotor sensor (7), connector base (9) is fixedly connected on housing (1), electric connector (10) is connected on connector base (9).
2., according to the brushless DC motor of winding asymmetric described in claim 1, it is characterized in that: 1 circle winding (42) by 2 enamelled wires (44) and winding become.
3. according to the brushless DC motor of winding asymmetric described in claim 1 or 2, it is characterized in that: described stator core (41) is provided with 12 stator slot structures (43), wherein 8 stator slot structure (43) interior winding (42) numbers of turn are 2 circles, and 4 stator slot structure (43) interior winding (42) numbers of turn are 3 circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673638.6A CN105262260B (en) | 2015-10-16 | 2015-10-16 | A kind of brushless direct current motor of asymmetric winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510673638.6A CN105262260B (en) | 2015-10-16 | 2015-10-16 | A kind of brushless direct current motor of asymmetric winding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105262260A true CN105262260A (en) | 2016-01-20 |
| CN105262260B CN105262260B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510673638.6A Active CN105262260B (en) | 2015-10-16 | 2015-10-16 | A kind of brushless direct current motor of asymmetric winding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036971A (en) * | 2021-03-05 | 2021-06-25 | 江苏聚磁电驱动科技有限公司 | Single-wire multilayer winding distribution structure of motor and high-performance motor applying same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005130628A (en) * | 2003-10-24 | 2005-05-19 | Matsushita Electric Ind Co Ltd | Dc brushless motor |
| CN201956863U (en) * | 2010-12-30 | 2011-08-31 | 张国华 | Brushless DC (direct current) disc type direct drive motor for washing machine |
| CN202978530U (en) * | 2012-11-29 | 2013-06-05 | 南阳防爆集团股份有限公司 | Low voltage anti-strong water spraying explosion proof marine motor |
| CN104167836A (en) * | 2013-12-30 | 2014-11-26 | 上海优积驱动技术有限公司 | Concentrated winding permanent magnet motor |
| CN204013016U (en) * | 2014-07-04 | 2014-12-10 | 沈阳兴华航空电器有限责任公司 | A kind of brushless DC motor of high-protection level |
| CN205051470U (en) * | 2015-10-16 | 2016-02-24 | 沈阳兴华航空电器有限责任公司 | Brushless DC motor of asymmetric winding |
-
2015
- 2015-10-16 CN CN201510673638.6A patent/CN105262260B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005130628A (en) * | 2003-10-24 | 2005-05-19 | Matsushita Electric Ind Co Ltd | Dc brushless motor |
| CN201956863U (en) * | 2010-12-30 | 2011-08-31 | 张国华 | Brushless DC (direct current) disc type direct drive motor for washing machine |
| CN202978530U (en) * | 2012-11-29 | 2013-06-05 | 南阳防爆集团股份有限公司 | Low voltage anti-strong water spraying explosion proof marine motor |
| CN104167836A (en) * | 2013-12-30 | 2014-11-26 | 上海优积驱动技术有限公司 | Concentrated winding permanent magnet motor |
| CN204013016U (en) * | 2014-07-04 | 2014-12-10 | 沈阳兴华航空电器有限责任公司 | A kind of brushless DC motor of high-protection level |
| CN205051470U (en) * | 2015-10-16 | 2016-02-24 | 沈阳兴华航空电器有限责任公司 | Brushless DC motor of asymmetric winding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036971A (en) * | 2021-03-05 | 2021-06-25 | 江苏聚磁电驱动科技有限公司 | Single-wire multilayer winding distribution structure of motor and high-performance motor applying same |
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| Publication number | Publication date |
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| CN105262260B (en) | 2018-08-07 |
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