CN203587045U - Single-pair-pole external rotator angle position sensor - Google Patents
Single-pair-pole external rotator angle position sensor Download PDFInfo
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- CN203587045U CN203587045U CN201320623043.6U CN201320623043U CN203587045U CN 203587045 U CN203587045 U CN 203587045U CN 201320623043 U CN201320623043 U CN 201320623043U CN 203587045 U CN203587045 U CN 203587045U
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- external rotator
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- internal stator
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Abstract
The utility model discloses a single-pair-pole external rotator angle position sensor. The single-pair-pole external rotator angle position sensor comprises a rotatable single-pair-pole external rotator, and a static internal stator, wherein an air gap exists between the external rotator and the internal stator. The single-pair-pole external rotator angle position sensor is characterized in that: the external profile of the external rotator is round and the external rotator is concentric with the internal stator; the internal profile of the external rotator is an eccentric circle in relative to the external profile of the external rotator, and the number of the poles is in single pairs; and an internal stator iron core is disposed in the internal stator, a plurality of annular entire column teeth are disposed on an external edge of the internal stator iron core through an insulative skeleton, and an excitation winding, a cosine signal output winding, and a sine signal output winding are disposed on the insulative skeleton. The single-pair-pole external rotator angle position sensor has advantages of simple structure, high accuracy, and high reliability.
Description
Technical field
The utility model relates to single to pole external-rotor angle level sensor.
Background technology
Single similar with general self-starting reluctance motor version to pole external-rotor angle level sensor structure, by stator and rotor, formed, be a kind of angle, position sensing element based on magnetic resistance change rate principle.Stator core and rotor core are all respectively to be built up by siliconized plate, in stator core, be distributed with teeth groove, a phase field winding and two-phase output winding are arranged in the groove of stator core, are not with winding in rotor core, its circumferential surface is rectangular teeth or for round-arced tooth, its number of teeth is exactly number of pole-pairs.Its working method is: on stator, a phase field winding is excitatory, and on stator, two-phase is exported winding output signal in addition, is usually used in servo drive motor position probing.In order to be applicable to drive system, control, its number of pole-pairs will change along with the difference of motor number of pole-pairs, to designing, produce, using, makes troubles; For external-rotor-type servo drive motor and separately-loaded large diameter servo drive motor, existing internal rotor installation of sensors is inconvenient simultaneously.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, providing a kind of provides a kind of list to pole external-rotor angle level sensor, because sensor number of pole-pairs is single to the utmost point, can be suitable for the servo drive motor system of different poles logarithm, it has advantages of simple in structure, high precision, high reliability.
For solving the problems of the technologies described above, the utility model adopts following technical proposal.
Single to pole external-rotor angle level sensor, comprise that rotatable list, to pole external-rotor and static inner stator, exists air gap between outer rotor and inner stator, it is characterized in that outer rotor outline is for circular and concentric with inner stator, in outer rotor, the relative outline of profile is off-centre operation, and number of poles is single to the utmost point; In inner stator, be provided with internal stator iron core, on internal stator iron core excircle, by insulation framework, be provided with the tooth of some annular permutations, in insulation framework, be separately installed with field winding, cosine signal output winding, sinusoidal signal output winding.
Further design, on described internal stator iron core excircle, the number of teeth of distributed tooth is 2k, k is greater than 1 natural number.
Further design, described air gap span is 0.1 mm～2.0mm.
The beneficial effects of the utility model are: this list can be applicable to the motor driven systems of various numbers of pole-pairs to pole external-rotor angle level sensor, and need not design for the drive motor of different poles logarithm the angle level sensor of different poles logarithm; Be applicable to very much external-rotor-type servo drive motor and separately-loaded large diameter servo drive motor rotor-position simultaneously and detect, easy for installation, simple in structure; Inner stator winding type is simple, field winding, just, cosine signal output winding can directly be wound on insulating support, is applicable to very much batch machining.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to Fig. 1, single to pole external-rotor angle level sensor, comprise that rotatable list is to pole external-rotor 1 and static inner stator 2, between outer rotor 1 and inner stator 2, there is air gap 3, outer rotor 1 outline is circular and concentric with inner stator 2, the relative outline of the interior profile of outer rotor 1 is off-centre operation, and number of poles is single to the utmost point; In inner stator 2, be provided with internal stator iron core 4, on internal stator iron core 4 excircles, by insulation framework 5, be provided with the tooth 9 of 4 annular permutations, in insulation framework 5, be separately installed with field winding 6, cosine signal output winding 7, sinusoidal signal output winding 8.
Certainly, according to actual needs, on internal stator iron core 4 excircles, the desirable 2k of the number of teeth of distributed tooth 9 is individual, and k is greater than 1 natural number.
According to actual needs, air gap 3 spans are at 0.1 mm～2.0mm.
The foregoing is only preferential embodiment of the present utility model, as long as within the technical scheme that realizes the utility model object with basic identical means all belongs to protection domain of the present utility model.
Claims (3)
1. single to pole external-rotor angle level sensor, comprise that rotatable list is to pole external-rotor (1) and static inner stator (2), between outer rotor (1) and inner stator (2), there is air gap (3), it is characterized in that outer rotor (1) outline is for circular and concentric with inner stator (2), the relative outline of the interior profile of outer rotor (1) is off-centre operation, and number of poles is single to the utmost point; In inner stator (2), be provided with internal stator iron core (4), on internal stator iron core (4) excircle, by insulation framework (5), be provided with the tooth (9) of some annular permutations, in insulation framework (5), be separately installed with field winding (6), cosine signal output winding (7), sinusoidal signal output winding (8).
2. list according to claim 1 is to pole external-rotor angle level sensor, and the number of teeth that it is characterized in that distributed tooth (9) on described internal stator iron core (4) excircle is 2k, and k is greater than 1 natural number.
3. list according to claim 1, to pole external-rotor angle level sensor, is characterized in that described air gap (3) span is 0.1 mm～2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623043.6U CN203587045U (en) | 2013-10-10 | 2013-10-10 | Single-pair-pole external rotator angle position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623043.6U CN203587045U (en) | 2013-10-10 | 2013-10-10 | Single-pair-pole external rotator angle position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587045U true CN203587045U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320623043.6U Expired - Fee Related CN203587045U (en) | 2013-10-10 | 2013-10-10 | Single-pair-pole external rotator angle position sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203587045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819687A (en) * | 2013-12-26 | 2015-08-05 | 阿自倍尔株式会社 | Rotation angle detector |
| CN106017302A (en) * | 2016-06-24 | 2016-10-12 | 中国船舶重工集团公司第七0七研究所 | High-precision angle sensing device applicable to fluid floatation inertia instrument |
| CN109104048A (en) * | 2018-09-14 | 2018-12-28 | 宁波德昌科技有限公司 | Rotor-position sensor |
-
2013
- 2013-10-10 CN CN201320623043.6U patent/CN203587045U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819687A (en) * | 2013-12-26 | 2015-08-05 | 阿自倍尔株式会社 | Rotation angle detector |
| CN104819687B (en) * | 2013-12-26 | 2018-04-17 | 阿自倍尔株式会社 | Rotation angle detector |
| CN106017302A (en) * | 2016-06-24 | 2016-10-12 | 中国船舶重工集团公司第七0七研究所 | High-precision angle sensing device applicable to fluid floatation inertia instrument |
| CN109104048A (en) * | 2018-09-14 | 2018-12-28 | 宁波德昌科技有限公司 | Rotor-position sensor |
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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: 20140507 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |