CN209057083U - A kind of novel brushless dual-feed motor - Google Patents
A kind of novel brushless dual-feed motor Download PDFInfo
- Publication number
- CN209057083U CN209057083U CN201822141684.3U CN201822141684U CN209057083U CN 209057083 U CN209057083 U CN 209057083U CN 201822141684 U CN201822141684 U CN 201822141684U CN 209057083 U CN209057083 U CN 209057083U
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- rotor
- feed motor
- motor
- brushless dual
- stator
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model belongs to technical field of motors, more particularly to a kind of novel brushless dual-feed motor structure, wherein key is motor using bimorph transducer and mixed rotor structure, wherein mixed rotor is between external stator and inner stator, it is different from existing design scheme, the utility model electric machine structure is made of two air gaps, wherein mixed rotor is embedded with adjustable magnetic ring close to inner stator side, the magnetic field modulation ability of brushless double-fed machine rotor can effectively be enhanced, according to the technical solution of the utility model, it can preferably realize the INDIRECT COUPLING ability between motor double winding, improve the power factor and overall efficiency of motor.
Description
Technical field
The utility model relates to technical field of motors, and in particular to a kind of novel brushless dual-feed motor.
Background technique
Two sets of stator winding of alternating-current brushless double feedback electric engine can connect common frequency power network and variable-frequency power sources simultaneously, while having and synchronizing electricity
The operation characteristic of machine and asynchronous machine, required frequency inverter capacity is small, reliable for operation, especially the occasion in high voltage grade,
Can be by the low voltage control high pressure of variable-frequency power sources, energy-saving effect is significant.
There is brushless dual-feed motor the key of superperformance to be rotor, and the winding of two sets of different numbers of pole-pairs of stator cannot be straight
The transmitting for tapping into row energy, this requires rotors can modulate the magnetomotive force of two kinds of different numbers of pole-pairs simultaneously, and brushless dual-feed motor turns
Minor structure mainly has special cage-type rotor, reluctance type rotor and phase-wound rotor, wherein special cage-type rotor electric machine conductors utilize
Rate is low, harmonic content is high, and overall efficiency is low, and is difficult to reduce harmonic content by changing rotor structure, and phase-wound rotor is often adopted
With two kinds of windings, one is theoretical using traditional pole-changing, another kind be using etc. the equidistant slot ripples principle of circles, both are arranged
All there is apparent defect in mode for cloth, the former conductor utilization is not high, and feeder number is more, and circulation easy to form, the latter can lead
It is lower to send a telegraph machine winding coefficient, high order slot ripples content is higher, and rotor mmf asymmetry is easy to appear in implementation process
The case where, it is asymmetric so as to cause stator double winding electric current.
Utility model content
The purpose of this utility model is to provide a kind of harmonic content is low, the strong brushless dual-feed motor of magnetic field modulation ability.
To achieve the above object, the utility model uses following technical scheme: including two sets of stator winding and a set of turn
Sub- winding, stator winding number of pole-pairs are respectively p1 and p2, and rotor windings number of pole-pairs is p, described two sets of stators of electric machine structure around
Group uses double-stator structure, and rotor uses hybrid combination, and wherein rotor is embedded with adjustable magnetic ring close to inner stator side, is based on magnetic resistance
Hybrid-type rotor structure is embedded with the rotor slot of regular distribution on field spider.
Motor uses double-stator structure, and external stator and inner stator be located inside and outside rotor, external stator and rotor it
Between and inner stator and rotor between respectively there are two air gap, wherein inside and outside two sets number of stator slots are consistent, external stator for power around
Group, inner stator are control winding, and two sets of stator winding numbers of pole-pairs are respectively 2 and 4.
The motor rotor construction is magnetic resistance coiling mixed rotor structure, wherein scheme is different from the prior art is
Rotor punching is the outer reaction equation structure of magnetic resistance, and rotor tooth number is Z=p1+p2, and outer salient pole is along the uniform regular distribution of rotor.
To make up the problem that rotor magnetic field modulation ability is poor in prior art, brushless double feed is further enhanced
Motor is for magnetomotive modulation capability of two kinds of numbers of pole-pairs, and foundation the technical solution of the utility model is on motor rotor core
It is embedded in adjustable magnetic ring, wherein rotor adjustable magnetic number of rings is M=p1+p2.
Adjustable magnetic ring and outer salient pole are symmetrical along same center line in the rotor structure.
Preferably, the inside and outside double-stator structure, increases the draught area of stator winding coil, increases winding
Coil heat dissipation area further reduced the temperature of stator multi-layer coil windings.
Preferably, the adjustable magnetic ring that embedding method is distributed on the rotor core can effectively enhance brushless dual-feed motor
Modulation capability of the rotor for two kinds of magnetomotive force magnetic field.
Detailed description of the invention
Fig. 1 is the utility model electric machine structure figure.
It is as shown in the figure: 1 external stator；2 stator cores；3 outer air gaps；4 rotor slots；Air gap in 5；6 inner stators；7 shafts；
8 rotor tooths；9 adjustable magnetic rings.
Specific embodiment
The technical solution of the utility model is described further below with reference to embodiment.
Choose the slot of stator Z1=36, the slot of rotor Z2=48, power winding number of pole-pairs p1=2, control winding number of pole-pairs p2=4
Brushless dual-feed motor for, the electric machine structure specifically includes that external stator, stator core, outer air gap, mixed rotor,
Interior air gap, adjustable magnetic ring, inner stator and shaft.
Referring to Figure of description 1, the stator winding of two sets of different numbers of pole-pairs of motor uses inside and outside double-stator structure,
It is 36 slots that wherein the number of stator slots of the inside and outside bimorph transducer is equal, winding coil be short distance double-layer overlapped around.
The magnetic resistance coiling mixed rotor structure is provided with equally distributed rotor slot, of rotor tooth on rotor tooth
Number is Z=p1+p2, wherein the rotor windings are using the variable-pole winding arrangement based on slot ripples principle, rotor windings are not using
Equal circles, Unequal distance arrangement.
The mixed rotor structure, adjustable magnetic ring are regularly distributed on mixed rotor close to inner stator side, wherein adjusting
Magnet ring and rotor tooth are symmetrical along same center line, and rotor adjustable magnetic number of rings is M=p1+p2.
By using above-mentioned technical proposal, further enhances brushless double-fed machine rotor and modulate two kinds of magnetomotive energy
Power, wherein double-stator structure and double air gaps design, so that two kinds of different numbers of pole-pairs can be induced inside and outside motor in air gap simultaneously
Magnetomotive force, it will be apparent that enhance the magnetic field modulation ability of brushless dual-feed motor.
The above is only that the preferred embodiment of this patent is described, and is not limited the range of this patent
Fixed, under the premise of not departing from this patent design spirit, those of ordinary skill in the art make the art of this patent scheme each
Kind modification and improvement, should all fall into the protection scope of this patent.
Claims (6)
1. a kind of novel brushless dual-feed motor, including two sets of stator winding and a set of rotor windings, stator winding number of pole-pairs point
Not Wei p1 and p2, rotor windings number of pole-pairs is p, it is characterised in that: two sets stator winding are adopted using bimorph transducer design structure, rotor
With mixed rotor structure, wherein rotor is embedded with adjustable magnetic ring close to inner stator side, is based on the hybrid-type rotor structure of magnetic resistance, convex
The rotor slot of regular distribution is embedded on the rotor of pole.
2. the novel brushless dual-feed motor of one kind according to claim 1, it is characterised in that: the motor is bimorph transducer
Structure, external stator and inner stator are located inside and outside rotor.
3. the novel brushless dual-feed motor of one kind according to claim 1, it is characterised in that: the motor is double air gaps
Structure is divided into inside and outside two air gaps.
4. the novel brushless dual-feed motor of one kind according to claim 1, it is characterised in that: the mixed rotor tooth
Number is Z=p1+p2.
5. the novel brushless dual-feed motor of one kind according to claim 1, it is characterised in that: the mixed rotor tune
Magnet ring number is M=p1+p2.
6. the novel brushless dual-feed motor of one kind according to claim 1, it is characterised in that: the mixed rotor tune
Magnet ring is symmetrical along same center line with outer salient pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141684.3U CN209057083U (en) | 2018-12-20 | 2018-12-20 | A kind of novel brushless dual-feed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141684.3U CN209057083U (en) | 2018-12-20 | 2018-12-20 | A kind of novel brushless dual-feed motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209057083U true CN209057083U (en) | 2019-07-02 |
Family
ID=67055124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822141684.3U Expired - Fee Related CN209057083U (en) | 2018-12-20 | 2018-12-20 | A kind of novel brushless dual-feed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209057083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003437A (en) * | 2020-09-08 | 2020-11-27 | 齐鲁工业大学 | Composite structure wind driven generator and power generation system |
| CN112366851A (en) * | 2020-11-05 | 2021-02-12 | 嵊州市双港电器有限公司 | Motor for range hood |
-
2018
- 2018-12-20 CN CN201822141684.3U patent/CN209057083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112003437A (en) * | 2020-09-08 | 2020-11-27 | 齐鲁工业大学 | Composite structure wind driven generator and power generation system |
| CN112003437B (en) * | 2020-09-08 | 2022-03-18 | 齐鲁工业大学 | Composite structure wind driven generator and power generation system |
| CN112366851A (en) * | 2020-11-05 | 2021-02-12 | 嵊州市双港电器有限公司 | Motor for range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |