CN202475211U - Salient-pole rotor single-phase brushless direct current (DC) motor - Google Patents
Salient-pole rotor single-phase brushless direct current (DC) motor Download PDFInfo
- Publication number
- CN202475211U CN202475211U CN2012200964130U CN201220096413U CN202475211U CN 202475211 U CN202475211 U CN 202475211U CN 2012200964130 U CN2012200964130 U CN 2012200964130U CN 201220096413 U CN201220096413 U CN 201220096413U CN 202475211 U CN202475211 U CN 202475211U
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- yoke
- motor
- winding
- rotor
- salient
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to the technical field of direct current (DC) motors. A salient-pole rotor single-phase brushless DC motor comprises a rotor yoke, permanent magnet bodies, armature windings, a stator yoke and a rotating shaft. The rotor yoke is fixed on the outer side of the rotating shaft, protruding blocks are disposed at intervals along the periphery of the outer side of the rotor yoke, an elongated slot is disposed in the medial-lateral direction on each protruding block and on the rotor yoke which is corresponding to each protruding block. The permanent magnet bodies are fixedly disposed in the elongated slots, the stator yoke is disposed outside the protruding blocks in sleeved mode, winding cavities are distributed at intervals along the periphery direction inside the stator yoke, the armature windings are fixedly disposed inside the winding cavities, and openings are disposed between the winding cavities and the inner wall of the stator yoke. The salient-pole rotor single-phase brushless DC motor has the advantages of being reasonable in structure and convenient to use, having self-staring ability due to a protruding block structure of a rotor and tangential type permanent magnet bodies, being suitable for high-speed driving and having a high torque inertia-ratio and a wide range of speed regulation. In addition, the salient-pole rotor single-phase brushless DC motor can be started frequently, the condition that starting current is small and starting torque is big is more outstanding when the motor is started at a low speed, each armature winding only has a winding, control circuit is simple, and therefore the salient-pole rotor single-phase brushless DC motor has high economy and high reliability.
Description
Technical field
The utility model relates to the dc motor technology field, is a kind of field spider brushless single phase direct current machine.
Background technology
Because the brush-less permanent magnetic direct current machine had both had the series of advantages such as simple in structure, reliable, easy to maintenance of alternating current motor; Possess plurality of advantages such as the operational efficiency height of DC motor, no excitation loss and good speed adjustment features again, so use universal day by day in each field of current national economy.The brush-less permanent magnetic direct current machine that uses at present, the overwhelming majority is the three-phase direct-current brushless motor, the winding configuration more complicated, the control circuit cost is higher.
Summary of the invention
The utility model provides a kind of field spider brushless single phase direct current machine, has overcome the deficiency of above-mentioned prior art, and it can solve the winding configuration more complicated and the control circuit cost problem of higher of three-phase direct-current brushless motor.
The technical scheme of the utility model realizes like this: a kind of field spider brushless single phase direct current machine comprises rotor yoke, permanent magnet, armature winding, stator yoke and rotating shaft; The outside in rotating shaft is fixed with rotor yoke; There is projection in the outside at rotor yoke along circumferentially-spaced, each projection and with the pairing rotor yoke of projection on the elongated slot of inward-outward direction is arranged, at the elongated slot internal fixation permanent magnet is installed; Be set with stator yoke in the projection outside; In stator yoke, winding cavity is arranged, armature winding is installed, between winding cavity and stator yoke inwall, opening is arranged at the winding cavity internal fixation along circumferentially-spaced.
More than one of them opening internal fixation Hall element is installed.
The utility model is rational in infrastructure, and is easy to use, because the projection cube structure and the tangential permanent magnetic body of rotor; It has self-startup ability, is applicable to high-speed driving, higher torque ratio of inertias, speed-regulating range width is arranged; And can frequent starting, starting current is little, detent torque is big, more outstanding during low speed, armature winding has only a winding; Control circuit is simple, therefore has higher economical efficiency and reliability.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model.
Fig. 2 is the main TV structure sketch map of stator yoke in the utility model.
Fig. 3 is the main TV structure sketch map of the utility model rotor yoke.
Coding among the figure is respectively: 1 is rotor yoke, and 2 is permanent magnet, and 3 is armature winding, and 4 is stator yoke, and 5 are rotating shaft, and 6 is projection, and 7 is elongated slot, and 8 is winding cavity, and 9 is opening, and 10 is Hall element.
Embodiment
In the utility model, for the ease of describing, the description of each parts relative position relation all is to describe according to the Butut mode of Figure of description 1.
Shown in Fig. 1 to 3, a kind of field spider brushless single phase direct current machine comprises rotor yoke 1, permanent magnet 2, armature winding 3, stator yoke 4 and rotating shaft 5; Be fixed with rotor yoke 1 in the outside of rotating shaft 5; There is projection 6 in the outside at rotor yoke 1 along circumferentially-spaced, each projection 6 and with projection 6 pairing rotor yokes 1 on the elongated slot 7 of inward-outward direction is arranged, at elongated slot 7 internal fixation permanent magnet 2 is installed; Be set with stator yoke 4 in projection 6 outsides; In stator yoke 4, winding cavity 8 is arranged, armature winding 3 is installed, between winding cavity 8 and stator yoke inwall, opening 9 is arranged at winding cavity 8 internal fixation along circumferentially-spaced.Because there is projection 6 in the outside of rotor yoke 1 along circumferentially-spaced, and permanent magnet 2 is set, and has self-startup ability.There is not brush on the rotor yoke 1, firm in structure, be applicable to high-speed driving.Under the same inner diameter situation, owing to be separated with projection 6 between on the rotor yoke 1, make rotor yoke 1 quality less, moment of inertia is little, and the higher torque ratio of inertias is arranged.Speed-regulating range width, and can frequent starting.Starting current is little, and detent torque is big, and is more outstanding during low speed.Because armature winding 3 has only a winding, control circuit is simple, has higher economical efficiency and reliability.Magnetic flux under 2, one pole spans of permanent magnet of employing cutting orientation structure is provided by adjacent two magnetic flux parallel connections, can obtain bigger every utmost point magnetic flux.Especially more when motor progression, magnetic material remanent magnetism is lower, when radial structure can not provide enough every utmost point magnetic fluxs, the advantage of this structure is more obvious.The ratio of the reluctance torque of the magneto of this tangential rotor structure in the total electromagnetic torque of motor can arrive 40%; This is to making full use of reluctance torque; It is favourable with the output-constant operation scope of expansion motor to improve power of motor density, and realization " weak magnetic control system " easily.Permanent magnet 2 is positioned at rotor yoke 1 inside, and permanent magnet 2 surfaces are not directly to air gap, and when the abominable situation of overcurrent appearred in armature winding 3, permanent magnet 2 was not easy to occur the demagnetization phenomenon, helped the long-term stability operation of permanent magnet 2.The utility model adopts non-uniform gap, and the rotor magnetic pole center line departs from the stator tooth center line when making the winding no power, thereby during stator winding electrifying, produces detent torque, has solved the problem that starts the dead point.As required, one of them opening 9 internal fixation is equipped with Hall element 10.
Claims (2)
1. a field spider brushless single phase direct current machine is characterized in that: comprise rotor yoke (1), permanent magnet (2), armature winding (3), stator yoke (4) and rotating shaft (5); Be fixed with rotor yoke (1) in the outside of rotating shaft (5); There is projection (6) in the outside at rotor yoke (1) along circumferentially-spaced; Each projection (6) and with the pairing rotor yoke of projection (6) (1) on the elongated slot (7) of inward-outward direction is arranged; At elongated slot (7) internal fixation permanent magnet (2) is installed, is set with stator yoke (4), in stator yoke (4), winding cavity (8) is arranged along circumferentially-spaced in projection (6) outside; At winding cavity (8) internal fixation armature winding (3) is installed, opening (9) is arranged between winding cavity (8) and stator yoke inwall.
2. field spider brushless single phase direct current machine according to claim 1 is characterized in that: said one of them opening (9) internal fixation is equipped with Hall element (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200964130U CN202475211U (en) | 2012-03-15 | 2012-03-15 | Salient-pole rotor single-phase brushless direct current (DC) motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200964130U CN202475211U (en) | 2012-03-15 | 2012-03-15 | Salient-pole rotor single-phase brushless direct current (DC) motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475211U true CN202475211U (en) | 2012-10-03 |
Family
ID=46923334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200964130U Expired - Fee Related CN202475211U (en) | 2012-03-15 | 2012-03-15 | Salient-pole rotor single-phase brushless direct current (DC) motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475211U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219849A (en) * | 2013-05-06 | 2013-07-24 | 东南大学 | Rotor-permanent-magnetic type doubly-salient motor |
| CN107026524A (en) * | 2016-02-01 | 2017-08-08 | 德昌电机(深圳)有限公司 | Monophase machine and its rotor |
| CN108683321A (en) * | 2018-05-03 | 2018-10-19 | 华中科技大学 | A kind of magnetic geared system of iron yoke fluting |
-
2012
- 2012-03-15 CN CN2012200964130U patent/CN202475211U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219849A (en) * | 2013-05-06 | 2013-07-24 | 东南大学 | Rotor-permanent-magnetic type doubly-salient motor |
| CN107026524A (en) * | 2016-02-01 | 2017-08-08 | 德昌电机(深圳)有限公司 | Monophase machine and its rotor |
| CN108683321A (en) * | 2018-05-03 | 2018-10-19 | 华中科技大学 | A kind of magnetic geared system of iron yoke fluting |
| CN108683321B (en) * | 2018-05-03 | 2020-10-30 | 华中科技大学 | Magnetic gear device with iron yoke grooved |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |