CN1533011A - Rotor of synchronous magneto resistance motor - Google Patents
Rotor of synchronous magneto resistance motor Download PDFInfo
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- CN1533011A CN1533011A CNA031208681A CN03120868A CN1533011A CN 1533011 A CN1533011 A CN 1533011A CN A031208681 A CNA031208681 A CN A031208681A CN 03120868 A CN03120868 A CN 03120868A CN 1533011 A CN1533011 A CN 1533011A
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- stub
- peripheral face
- iron core
- outer peripheral
- rotor
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Abstract
This invention discloses a rotor of a synchronous reluctance machine including a core, several conducting rods inserted into the outer cycle of the core in uniform space and several blocking plates plugging into the core divided into two symmetrical groups around the shaft-center. The said conducting rods includes: the conducting rods inserting into the outer cycle of the core and connecting with the ends of the blocking plates and deep-inserting rods inserting but not connecting with their ends, the outer surfaces of the rods are just aligned with the peripheral face of the core and the deep-inserting rods deep in the peripheral face of the core forming a certain distance between the two outer surfaces.
Description
Technical field
The present invention relates to a kind of synchronous magnetic resistance motor, particularly relate to a kind of rotor of synchronous magnetic resistance motor
Background technology
Synchronous machine is a kind of of alternating current machine, in general when the frequency one of AC power regularly, the rotating speed of synchronous AC motor and load-independent, in other words synchronous AC motor be a kind of be the uniform speed electric motor of rotating speed with the synchronizing speed.And for synchronous magnetic resistance motor, its torque is produced by the magnetic resistance composition, and in other words, the rotor of synchronous magnetic resistance motor depends on reluctance torque to rotate.
Existing common synchronous magnetic resistance motor generally comprises: stator and rotor; Stator is provided with coil, and rotor is arranged in the cavity that stator surrounds; After stator coil is connected alternating current, form rotating magnetic field around stator, under the effect of this rotating magnetic field, rotor rotates around armature spindle.
As shown in Figure 1, the rotor of existing common synchronous magnetic resistance motor comprises: iron core 10, several embed the stub 11 of outer peripheral face of iron core 10 evenly and at intervals and several insert the dividing plate 12 of iron cores 10; Described dividing plate 12 is walked around armature spindle and is divided into the armature spindle is symmetrical two groups in center; The end of described dividing plate 12 is connected with stub 11 respectively.
The operation principle of above-mentioned synchronous magnetic resistance motor when starting is similar to induction machine, reaches after the synchronizing speed and work as motor, and dividing plate 12 will play the effect of the prominent utmost point, produces torque.
Below with reference to Fig. 2 and Fig. 3 the shortcoming of the rotor of existing common synchronous magnetic resistance motor is illustrated:
Shown in Fig. 2 is the change curve of the rotor of synchronous magnetic resistance motor among Fig. 1 along Q reference axis air gap place density of line of magnetic force.
Fig. 3 is that the torque of existing common synchronous magnetic resistance motor is with the change in rotational speed curve chart.
Air gap is the interval between rotor and the stator.The position of from Fig. 2, representing with circle as can be seen, the distortion phenomenon of Q reference axis air gap place density of line of magnetic force is very serious.
The distortion of above-mentioned air gap place density of line of magnetic force has seriously influenced the characteristic of motor.As shown in Figure 3, because the distortion of air gap place density of line of magnetic force causes when electric motor starting, comprises a plurality of high order harmonic component compositions (as 3 subharmonic, 5 subharmonic and 7 subharmonic etc.) in the torque, thereby produce some unnecessary torque, reduced the starting characteristic of motor.
Summary of the invention
Technical problem to be solved by this invention is, the rotor that overcomes existing common synchronous magnetic resistance motor is when starting, owing to comprise a plurality of high order harmonic component compositions (as 3 subharmonic, 5 subharmonic and 7 subharmonic etc.) in the torque, thereby produce some unnecessary torque, reduce the shortcoming of the starting characteristic of motor, a kind of rotor with good starting characteristic synchronous magnetic resistance motor that can prevent the distortion of air gap place density of line of magnetic force is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the rotor of synchronous magnetic resistance motor of the present invention comprises: iron core, several embed the stub of outer peripheral face of iron core evenly and at intervals and several insert the dividing plate of iron cores; Described dividing plate is walked around armature spindle and is divided into the armature spindle is symmetrical two groups in center.
Described stub comprises: embed the outer peripheral face of the outer peripheral face of iron core and the stub that is connected with the end of dividing plate respectively and embedding iron core but the dark embedding stub that is not connected with the end of dividing plate; The lateral surface of described stub just aligns with the outer peripheral face of iron core, and described dark embedding stub embeds in the outer peripheral face of iron core, forms certain distance between the outer peripheral face of its lateral surface and iron core.
In other words, as the thin portion enlarged drawing of Fig. 4 as can be seen, the position of the dark embedding stub of generation air gap density of line of magnetic force distortion has as shown in Figure 2 been moved certain distance along the outer peripheral face of iron core to its internal diameter direction.
The lateral surface of described dark embedding stub is no more than the length of dark embedding stub self apart from distance between the outer peripheral face of iron core.
The invention has the beneficial effects as follows: the distortion composition of air gap density of line of magnetic force can be revealed away, greatly improve the starting characteristic of motor, improve the Reliability of product.
Description of drawings
Fig. 1 is the plane graph of the rotor structure of existing common synchronous magnetic resistance motor;
Fig. 2 is the change curve of the rotor of existing common synchronous magnetic resistance motor along Q reference axis air gap place density of line of magnetic force;
Fig. 3 is that the torque of existing common synchronous magnetic resistance motor is with the change in rotational speed curve chart;
Fig. 4 is the plane graph of the rotor structure of synchronous magnetic resistance motor of the present invention;
Fig. 5 adds the simulated experiment data comparison diagram of starting effect after the load for existing common synchronous magnetic resistance motor and synchronous magnetic resistance motor of the present invention.
Among the figure:
10: iron core 11: stub
12: dividing plate 21: in the stub that contracts
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 4 is the plane graph of the rotor structure of synchronous magnetic resistance motor of the present invention.
Fig. 5 adds the simulated experiment data comparison diagram of starting effect after the load for existing common synchronous magnetic resistance motor and synchronous magnetic resistance motor of the present invention.
As shown in Figure 4, the rotor of synchronous magnetic resistance motor of the present invention comprises: iron core 10, several embed the stub of outer peripheral face of iron core 10 evenly and at intervals and several insert the dividing plate 12 of iron cores 10; Described dividing plate 12 is walked around armature spindle and is divided into the armature spindle is symmetrical two groups in center.
Described stub comprises: embed the outer peripheral face of the outer peripheral face of iron core 10 and the stub 11 that is connected with the end of dividing plate 12 respectively and embedding iron core 10 but the dark embedding stub 21 that is not connected with the end of dividing plate 12; The lateral surface of described stub 11 just aligns with the outer peripheral face of iron core 10, and described dark embedding stub 21 embeds in the outer peripheral face of iron cores 10, forms certain distance between the outer peripheral face of its lateral surface and iron core 10.
In other words, as the thin portion enlarged drawing of Fig. 4 as can be seen, the position of the dark embedding stub 21 of generation air gap density of line of magnetic force distortion has as shown in Figure 2 been moved certain distance along the outer peripheral face of iron core 10 to its internal diameter direction.
The lateral surface of described dark embedding stub 21 is no more than the length of dark embedding stub 21 self apart from distance between the outer peripheral face of iron core 10.
The advantage of the rotor of synchronous magnetic resistance motor of the present invention is: during actuating motor, and stub 11 magnetic lines of force that produce will produce starting torque by magnetic circuit. And the air gap density of line of magnetic force The distortion composition will reveal by the interval between dark embedding stub 21 and the rotor outer peripheral face Go out, can not have influence on the torque of actual rotor, thereby improve the starting characteristic of motor.
Below with reference to Fig. 5 to synchronous magnetic resistance motor of the present invention and existing common synchronous magnetic The starting characteristic of resistance motor is compared.
As shown in Figure 5, existing common synchronous magnetic resistance motor is switched on by after a while, Because the distortion of air gap density of line of magnetic force still can not realize normal starting; And synchronous magnetic of the present invention Behind the resistance electrical power, can realize normal starting very soon.
Claims (2)
1. the rotor of a synchronous magnetic resistance motor comprises: iron core, several embed the stub of outer peripheral face of iron core evenly and at intervals and several insert the dividing plate of iron cores; Described dividing plate is walked around armature spindle and is divided into the armature spindle is symmetrical two groups in center, and it is characterized in that: described stub comprises: embed the outer peripheral face of the outer peripheral face of iron core (10) and the stub (11) that is connected with the end of dividing plate (12) respectively and embedding iron core (10) but the dark embedding stub (21) that is not connected with the end of dividing plate (12); The lateral surface of described stub (11) just aligns with the outer peripheral face of iron core (10), and described dark embedding stub (21) embeds in the outer peripheral face of iron core (10), forms certain distance between the outer peripheral face of its lateral surface and iron core (10).
2. the rotor of synchronous magnetic resistance motor according to claim 1 is characterized in that: the lateral surface of described dark embedding stub (21) is no more than the length of dark embedding stub (21) self apart from distance between the outer peripheral face of iron core (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208681A CN100414814C (en) | 2003-03-25 | 2003-03-25 | Rotor of synchronous magneto resistance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208681A CN100414814C (en) | 2003-03-25 | 2003-03-25 | Rotor of synchronous magneto resistance motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1533011A true CN1533011A (en) | 2004-09-29 |
| CN100414814C CN100414814C (en) | 2008-08-27 |
Family
ID=34285476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031208681A Expired - Fee Related CN100414814C (en) | 2003-03-25 | 2003-03-25 | Rotor of synchronous magneto resistance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100414814C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101517861B (en) * | 2006-09-27 | 2012-07-25 | Abb公司 | Rotor for electric machine |
| CN109997290A (en) * | 2016-10-11 | 2019-07-09 | 东芝产业机器系统株式会社 | Synchronous reluctance type rotating electric machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3862446A (en) * | 1973-12-28 | 1975-01-21 | Allis Chalmers | Two pole synchronous reluctance motor |
| JP2000197325A (en) * | 1998-12-25 | 2000-07-14 | Matsushita Electric Ind Co Ltd | Reluctance motor |
| KR100748953B1 (en) * | 2001-01-04 | 2007-08-13 | 주식회사 엘지이아이 | Line bar started permanent magnet motor |
| KR100400451B1 (en) * | 2001-01-04 | 2003-10-01 | 엘지전자 주식회사 | Manufacturing rotor and method of line bar started permanent magnet motor |
| JP3676242B2 (en) * | 2001-01-30 | 2005-07-27 | 三洋電機株式会社 | Induction synchronous motor |
-
2003
- 2003-03-25 CN CNB031208681A patent/CN100414814C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101517861B (en) * | 2006-09-27 | 2012-07-25 | Abb公司 | Rotor for electric machine |
| CN109997290A (en) * | 2016-10-11 | 2019-07-09 | 东芝产业机器系统株式会社 | Synchronous reluctance type rotating electric machine |
| US10778052B2 (en) | 2016-10-11 | 2020-09-15 | Toshiba Industrial Products And Systems Corporation | Synchronous reluctance type rotary electric machine |
| CN109997290B (en) * | 2016-10-11 | 2021-06-01 | 东芝产业机器系统株式会社 | Synchronous reluctance type rotating electric machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100414814C (en) | 2008-08-27 |
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Granted publication date: 20080827 Termination date: 20130325 |