CN201656602U - Brushless doubly-fed machine - Google Patents
Brushless doubly-fed machine Download PDFInfo
- Publication number
- CN201656602U CN201656602U CN2010201080960U CN201020108096U CN201656602U CN 201656602 U CN201656602 U CN 201656602U CN 2010201080960 U CN2010201080960 U CN 2010201080960U CN 201020108096 U CN201020108096 U CN 201020108096U CN 201656602 U CN201656602 U CN 201656602U
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- rotor
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- phase power
- phase control
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Abstract
The utility model relates to a novel rotor brushless doubly-fed machine, which comprises a spindle, wherein the spindle is sequentially provided with a rotor power iron core, a rotor connecting iron core and a rotor control iron core, wherein the rotor power iron core is provided with a rotor three-phase power winding wire slot, and the inside of the rotor three-phase power winding wire slot is wound with a rotor three-phase power winding; the rotor connecting iron core is provided with a rotor three-phase power winding and a wire slot of a connecting wire of a rotor three-phase control winding; the rotor control iron core is provided with a rotor three-phase control winding wire slot, and the inside of the rotor three-phase control winding wire slot is wound with a rotor three-phase control winding; and the rotor three-phase power winding and the rotor three-phase control winding are connected in a cross mode by the connecting wire of the rotor three-phase power winding and the rotor three-phase control winding, and the connecting wire of the rotor three-phase power winding and the rotor three-phase control winding is in the wire slot of the connecting wire of the rotor three-phase power winding and the rotor control winding. The utility model has the advantages of simple structure and high rotor field conversion efficiency.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of brushless dual-feed motor.
Background technology
The alternating-current brushless double feedback electric engine is applicable to frequency conversion speed-adjusting system, is characterized in that reliable, required frequency inverter capacity is little.Brushless dual-feed motor will be widely used in large fan, water pump, metallurgy, field of wind power generation as a kind of novel buncher.
The field pole number conversion efficient and the rotor structure of brushless dual-feed motor are closely related.The rotor structure of brushless dual-feed motor mainly contains magnetic resistance type and cage modle.At present, using more is cage-type rotor, and the cage-type rotor manufacturing is simple, is used for large-size machine more, but field pole number conversion efficient is not high, so efficient is also lower.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art, provides a kind of simple in structure, the brushless dual-feed motor that the rotor field conversion efficiency is high.
For achieving the above object, brushless dual-feed motor of the present utility model comprises rotating shaft, be located at the stator core in the rotating shaft, stator core is provided with stator three-phase control winding and stator three phase power winding, it is characterized in that: be sequentially with rotor power iron core, rotor connection iron core and rotor control iron core in the rotating shaft, rotor power iron core is provided with rotor three-phase power winding wire slot, is wound with rotor three-phase power winding in the rotor three-phase power winding wire slot; Rotor connects the wire casing that iron core is provided with rotor three-phase power winding and three-phase rotor three-phase control winding connecting line; Rotor control iron core is provided with rotor three-phase control winding wire slot, is wound with rotor three-phase control winding in the rotor three-phase control winding wire slot; Through the connecting line interconnection of rotor three-phase power winding and rotor three-phase control winding, the connecting line of rotor three-phase power winding and rotor three-phase control winding places in the wire casing of rotor three-phase power winding and rotor three-phase control winding connecting line between rotor three-phase power winding and the rotor three-phase control winding.
Described rotor three-phase power winding wire slot is identical with the quantity of rotor three-phase control winding wire slot, the number of pole-pairs of stator three-phase control winding is identical with the number of pole-pairs of rotor three-phase control winding, and the number of pole-pairs of stator three phase power winding is identical with the number of pole-pairs of rotor three-phase power winding; Described rotor three-phase power winding and rotor three-phase control winding are respectively " Y " type syndeton.
Beneficial effect: rotor connects iron core rotor power iron core and rotor control iron core is separated, and makes things convenient for rotor three-phase power winding and rotor three-phase to control the installation of winding.The connecting line of rotor three-phase power winding and rotor three-phase control winding is placed in rotor and is connected in the wire casing unshakable in one's determination, can protect connecting line on the one hand, can reduce rotor winding leakage field simultaneously.Reduce rotor leakage reactance, can improve the power factor of motor, greatly improved rotor field number of poles conversion efficiency.
Description of drawings
Fig. 1 is a rotor brushless double feed motor vertical profile sectional view;
Fig. 2 is the cross-sectional sectional view of rotor brushless double feed rotor power iron core;
Fig. 3 is a rotor brushless double feed rotor control cross-sectional sectional view unshakable in one's determination;
Fig. 4 is that the rotor brushless double feed rotor connects cross-sectional sectional view unshakable in one's determination;
Fig. 5 is the connecting circuit figure of rotor brushless double feed rotor winding.
Among the figure: the 1-stator core; 2-stator three-phase control winding; 3-stator three phase power winding; 4-rotor three-phase power winding; 5-rotor power iron core; The 6-rotor connects unshakable in one's determination; The connecting line of 7-rotor three-phase power winding and rotor three-phase control winding; 8-rotor three-phase control winding; The control of 9-rotor is unshakable in one's determination; The 10-rotating shaft; 11-rotor three-phase power winding wire slot; 12-rotor three-phase control winding wire slot; The wire casing of 13-rotor three-phase power winding and three-phase rotor three-phase control winding connecting line.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
As shown in the figure, among Fig. 1, this brushless double-fed machine stator is P by stator core 1, number of pole-pairs
cStator three-phase control winding 2 and number of pole-pairs be P
pStator three phase power winding 3 constitute, rotor is connected by rotor power iron core 5, rotor that unshakable in one's determination 6, rotor control is unshakable in one's determination 9, number of pole-pairs is P
pRotor three-phase power winding 4, rotor three-phase power winding and connecting line 7, the number of pole-pairs of rotor three-phase control winding be P
cRotor three-phase control winding 8 constitute; Wherein said stator core 1, rotor power iron core 5, rotor connect unshakable in one's determination 6 and rotor control unshakable in one's determination 9 build up by the thick silicon steel sheet of 0.3mm, stator core 1 inner surface is dug wire casing, lays two cover windings in the wire casing of stator core: stator three-phase control winding 2 and stator three phase power winding 3.
Rotor field number of poles conversion realizes by rotor three-phase power winding 4 and rotor three-phase control winding 8.When number of pole-pairs is P
pThe electric current of rotor three-phase power winding 4 flow into rotor three-phase control winding 8 after, its can produce magnetic field in rotor control unshakable in one's determination 9, the number of pole-pairs in magnetic field all is converted to P
cWhen number of pole-pairs is P
cThe electric current of rotor three-phase control winding 8 flow into rotor three-phase power winding 4 after, its can produce magnetic field in rotor power iron core 5, the number of pole-pairs in magnetic field all is converted to P
p
Rotor power iron core 5, rotor connect unshakable in one's determination 6 and the rotor control unshakable in one's determination 9 formation rotor core that is linked in sequence, it is identical that rotor power unshakable in one's determination 5 and rotor are controlled 9 external diameters unshakable in one's determination, rotor connects unshakable in one's determination 6 external diameter and controls the round external diameter that forms at the bottom of 9 wire casings unshakable in one's determination less than rotor power unshakable in one's determination 5 or rotor, conveniently lay rotor three-phase power winding 4 and rotor three-phase control winding 8, rotor connects the wire casing 13 that 6 outer surfaces unshakable in one's determination have 3 rotor three-phase power windings and three-phase control winding connecting line, 120 ° of their mechanical space angle position mutual deviations.
In Fig. 2, Fig. 3, rotor power unshakable in one's determination 5 and rotor are controlled the wire casing that 9 outer surfaces unshakable in one's determination are dug similar number, same structure, be that rotor three-phase power winding wire slot 11 is identical with the quantity of rotor three-phase control winding wire slot 12, lay rotor three-phase power winding 4 in the rotor three-phase power winding wire slot 11, lay rotor three-phase control winding 8 in the rotor three-phase control winding wire slot 12.
In Fig. 4, rotor connects the wire casing 13 that 6 outer surfaces unshakable in one's determination are dug 3 rotor three-phase power windings and three-phase control winding connecting line, 120 ° of their mechanical space angle position mutual deviations are used for laying the connecting line 7 of rotor three-phase power winding and rotor three-phase control winding.
In Fig. 5, rotor three-phase power winding 4 and rotor three-phase control winding 8 all are " Y " type syndetons, their three head ends carry out interconnection by the connecting line 7 of rotor three-phase power winding and rotor three-phase control winding, and the rotor field direction of rotation that the electric current of controlling winding 8 with the electric current and the rotor three-phase of assurance rotor three-phase power winding 4 produces is opposite.So just can realize the conversion of rotor field number of poles, improve conversion efficiency.
Claims (3)
1. brushless dual-feed motor, comprise rotating shaft (10), be located at the stator core (1) in the rotating shaft (10), stator core (1) is provided with stator three-phase control winding (2) and stator three phase power winding (3), it is characterized in that: be sequentially with rotor power iron core (5), rotor connection (6) unshakable in one's determination and rotor control (9) unshakable in one's determination in the rotating shaft (10), rotor power iron core (5) is provided with rotor three-phase power winding wire slot (11), is wound with rotor three-phase power winding (4) in the rotor three-phase power winding wire slot (11); Rotor connects the wire casing (13) that (6) unshakable in one's determination are provided with rotor three-phase power winding and three-phase rotor three-phase control winding connecting line; Rotor control (9) unshakable in one's determination is provided with rotor three-phase control winding wire slot (12), is wound with rotor three-phase control winding (8) in the rotor three-phase control winding wire slot (12); Through connecting line (7) interconnection of rotor three-phase power winding and rotor three-phase control winding, the connecting line (7) of rotor three-phase power winding and rotor three-phase control winding places in the wire casing (13) of rotor three-phase power winding and rotor three-phase control winding connecting line between rotor three-phase power winding (4) and the rotor three-phase control winding (8).
2. brushless dual-feed motor according to claim 1 is characterized in that: described rotor three-phase power winding wire slot (11) is identical with the quantity of rotor three-phase control winding wire slot (12).
3. brushless dual-feed motor according to claim 1 is characterized in that: described rotor three-phase power winding (4) and rotor three-phase control winding (8) are respectively " Y " type syndeton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201080960U CN201656602U (en) | 2010-01-25 | 2010-01-25 | Brushless doubly-fed machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201080960U CN201656602U (en) | 2010-01-25 | 2010-01-25 | Brushless doubly-fed machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656602U true CN201656602U (en) | 2010-11-24 |
Family
ID=43121840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201080960U Expired - Fee Related CN201656602U (en) | 2010-01-25 | 2010-01-25 | Brushless doubly-fed machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656602U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163896A (en) * | 2011-03-15 | 2011-08-24 | 中国矿业大学 | Brushless double-fed motor |
| CN104810951A (en) * | 2015-05-12 | 2015-07-29 | 广东上水能源科技有限公司 | Novel brushless doubly-fed motor |
| CN108448759A (en) * | 2018-05-21 | 2018-08-24 | 广东上水能源科技有限公司 | A kind of brushless dual-feed motor |
-
2010
- 2010-01-25 CN CN2010201080960U patent/CN201656602U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163896A (en) * | 2011-03-15 | 2011-08-24 | 中国矿业大学 | Brushless double-fed motor |
| CN102163896B (en) * | 2011-03-15 | 2012-10-24 | 中国矿业大学 | Brushless double-fed motor |
| CN104810951A (en) * | 2015-05-12 | 2015-07-29 | 广东上水能源科技有限公司 | Novel brushless doubly-fed motor |
| CN104810951B (en) * | 2015-05-12 | 2018-02-16 | 广东上水能源科技有限公司 | A kind of brushless dual-feed motor |
| CN108448759A (en) * | 2018-05-21 | 2018-08-24 | 广东上水能源科技有限公司 | A kind of brushless dual-feed motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140125 |