WO2008010338A1 - Détecteur d'angle - Google Patents
Détecteur d'angle Download PDFInfo
- Publication number
- WO2008010338A1 WO2008010338A1 PCT/JP2007/058829 JP2007058829W WO2008010338A1 WO 2008010338 A1 WO2008010338 A1 WO 2008010338A1 JP 2007058829 W JP2007058829 W JP 2007058829W WO 2008010338 A1 WO2008010338 A1 WO 2008010338A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- stator
- ring
- angle detector
- winding
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K24/00—Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
- G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
- G01D5/2046—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core
Definitions
- the present invention relates to an angle detector, and in particular, a plurality of stators arranged on a ring-shaped stator plate via slots are provided with stator windings, and a ring-shaped ring is formed through a gap with respect to the stator.
- the present invention relates to a novel improvement for providing an ultra-thin configuration by providing a rotor plate so as to face each other in a freely rotatable manner, detecting an angular signal by a change in a gap caused by rotation of a ring-shaped rotor plate.
- this type of thin resolver used has a configuration using a rotary transformer shown in FIGS. 4 and 5, and a Noriable reluctance type of Patent Document 1 shown in FIG.
- the structure of a resolver can be mentioned.
- the resolver part 2 and the rotary transformer part 3 are arranged in a superposed manner along the axial direction.
- a resolver portion 2 having another conventional configuration shown in FIG. 6 includes a ring-shaped stator 5 having a resolver stator coil 4 and a ring-shaped rotor 6 provided in the stator 5 and having no coil. It is installed inside.
- the resolver feeder wiring diagrams in FIGS. 4, 5, and 6 are configured as shown in FIG. 8, and the excitation feeders Rl and R2 are composed of one phase and output on the detection side.
- the winding lines S1 to S4 are composed of two phases.
- Patent Document 1 US Patent No. 5920135
- the resolver stator coil wound around the stator protrudes on both sides of the stator, so that an insulating cover for insulating the resolver stator coil and A coil cover or the like is required, and the thickness of the stator is increased (10 mm is minimum), and it is extremely difficult to form a flat shape as described above.
- the rotor does not have a coil, the detection accuracy is limited.
- rotation is detected by a change in gap permeance between the outer periphery of the rotor and the inner periphery of each magnetic pole of the stator.
- stator since the stator has an integral structure, the magnetic field distribution generated by the excitation winding is affected by the mechanical position of the detection rotor pole.
- An angle detector includes a ring-shaped stator plate made of a non-magnetic material, a plurality of stators provided on the ring-shaped stator plate and independent of each other and forming slots periodically or aperiodically; A stator core formed by projecting on the surface of each stator, a stator conductor composed of an excitation conductor and an output conductor formed around the conductor core, and the stator surface A magnetic flux return platform provided on the inner side or the outer side of the stator winding, which protrudes upward, and a ring shape provided rotatably on the magnetic flux return platform and facing the stator winding in a non-contact manner.
- the structure is such that the gap between the core and the inner surface of the gap forming plate changes.
- the inner surface of the gap forming plate has a configuration in which a curved surface that changes in a sine wave shape is formed along the rotation direction, and the stator winding includes a sheet coil, a printed circuit board coil, an alignment It is a configuration consisting of any one of the winding lines, and the curved surface of the gap forming plate is formed with a plurality of cycles, and the inside of the annular rotor plate or the inner surface of the plate is A configuration in which a permanent magnet is provided, and what is defined in claims 1 to 5 A plurality of the angle detectors are arranged in a superposed manner in the axial direction.
- a stator winding having a winding magnetic core is provided on a plurality of stators independently arranged via slots on a ring-shaped stator plate, and a ring-shaped rotor is provided to the stator via a gap. Since the plates are provided so as to face each other in a freely rotatable manner and the angle signal is detected by the change in the air gap caused by the rotation of the ring-shaped rotor plate, a thin angle detector by facing the surfaces can be obtained. Further, since each stator is divided, the detection accuracy can be improved with less magnetic interference with the adjacent stator windings.
- the magnetic flux return platform is provided in the stator, the magnetic flux distribution for each stator is stabilized, which can contribute to improvement in detection accuracy.
- FIG. 1 is a perspective view including a notch showing an angle detector according to the present invention.
- FIG. 2 is a perspective view showing each stator of FIG. 1.
- FIG. 3 is a perspective view including a notch showing the annular rotor plate of FIG. 1.
- FIG. 4 is a half sectional view showing a conventional resolver.
- FIG. 5 is a plan view of FIG.
- FIG. 6 is a cross-sectional view of a conventional VR resolver.
- FIG. 8 is a wiring diagram showing the connection of the resolver.
- a stator winding is provided on a plurality of stators arranged on a ring-shaped stator plate via slots, and the ring-shaped rotor is rotated with respect to the stator via a gap.
- the object of the present invention is to provide an ultra-thin angle detector that is provided facing each other and detects an angle signal by a change in a gap caused by rotation of a ring-shaped rotor plate.
- reference numeral 1 denotes a ring-shaped stator plate made of a non-magnetic material.
- a plurality of independent slots are formed on the surface of the ring-shaped stator plate 1 periodically or aperiodically.
- a fixed stator 5 is provided.
- Each stator 5 is formed with a protruding magnetic core 11 which is a magnetic material, and a known sheet coil, printed circuit board coil, aligned winding, etc. are disposed around the magnetic core 11. And a stator winding 4 having an excitation winding 4a and an output winding 4b in two layers.
- Each of the stators 5 is independent through the slits 10 and has an overall shape of a fan shape or a quadrangular shape, and a ring-shaped and ridge-shaped magnetic material inside the stator winding 4
- Each of the magnetic flux return platforms 12 is provided with a predetermined height in the axial direction and serves as a magnetic flux return path, preventing crosstalk of the magnetic flux and contributing to improvement of detection accuracy.
- the magnetic flux return platform 12 is provided on the inner side of the stator 5, the magnetic flux return platform 12 has the same action as described above even if it is disposed on the outer side of the stator winding 4.
- a ring-shaped rotor plate 6 On the surface of the magnetic flux return path base 12, a ring-shaped rotor plate 6 is provided so as to be slidable and non-contact with the stator winding 4, and this ring-shaped rotation is provided.
- a permanent magnet (not shown) is provided in the ring-shaped rotor plate 6 or on the opposing surface, the detection sensitivity can be further improved.
- the number of stators 5 (number of poles m) and the number of cycles of the curved surface of the plate inner surface 13a (cycle n) can be set according to the application of the angle detector and the like.
- the axial thickness t of the angle detector 20 in FIG. 1 is 4 mm in the experimental prototype, which is about 1Z4 compared to the conventional configuration, and an ultra-thin angle detector is obtained. It can be done.
- annular rotor plate 6 is shown with a partial cross section, but in order to facilitate the explanation, it is actually formed in a complete annular shape.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/921,149 US7852069B2 (en) | 2006-07-19 | 2007-04-24 | Rotary angle detector |
EP07742264A EP1918681A4 (en) | 2006-07-19 | 2007-04-24 | ANGLE DETECTOR |
CN2007800004602A CN101322014B (zh) | 2006-07-19 | 2007-04-24 | 角度检测器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-196580 | 2006-07-19 | ||
JP2006196580A JP4862118B2 (ja) | 2006-07-19 | 2006-07-19 | 角度検出器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008010338A1 true WO2008010338A1 (fr) | 2008-01-24 |
Family
ID=38956673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/058829 WO2008010338A1 (fr) | 2006-07-19 | 2007-04-24 | Détecteur d'angle |
Country Status (5)
Country | Link |
---|---|
US (1) | US7852069B2 (ja) |
EP (1) | EP1918681A4 (ja) |
JP (1) | JP4862118B2 (ja) |
CN (1) | CN101322014B (ja) |
WO (1) | WO2008010338A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012159495A (ja) * | 2011-01-10 | 2012-08-23 | Aisan Ind Co Ltd | 位置センサ |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4982756B2 (ja) * | 2007-09-19 | 2012-07-25 | スミダコーポレーション株式会社 | モータ |
US8669760B2 (en) | 2008-05-15 | 2014-03-11 | Tamagawa Seiki Co., Ltd. | Angle detection system and method of manufacturing the same |
JP4850869B2 (ja) * | 2008-05-20 | 2012-01-11 | トヨタ自動車株式会社 | レゾルバ |
DE102009061032A1 (de) * | 2009-05-15 | 2010-11-18 | Tyco Electronics Belgium Ec Bvba | Magnetoelektronischer Winkelsensor, insbesondere Reluktanzresolver |
US8729887B2 (en) * | 2009-11-09 | 2014-05-20 | Aisan Kogyo Kabushiki Kaisha | Rotation angle sensor |
JP4654348B1 (ja) * | 2010-02-23 | 2011-03-16 | 多摩川精機株式会社 | 検出装置用巻線の正弦波巻線方法 |
JP5364031B2 (ja) * | 2010-04-20 | 2013-12-11 | 愛三工業株式会社 | 回転角センサ |
EP2589934B1 (en) * | 2010-07-02 | 2018-12-05 | Kyushu University, National University Corporation | Angle detection device |
RU2480710C2 (ru) * | 2011-08-03 | 2013-04-27 | Открытое акционерное общество "Научно-исследовательский институт физических измерений" | Трансформаторный преобразователь угловых перемещений |
DE102012215957A1 (de) * | 2012-09-10 | 2014-05-15 | Schaeffler Technologies Gmbh & Co. Kg | Resolverlager |
RU2545529C1 (ru) * | 2014-03-24 | 2015-04-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" | Индуктивный преобразователь угла поворота |
CN104658748A (zh) * | 2014-11-26 | 2015-05-27 | 许峻峰 | 一种自励磁的磁阻式旋转变压器 |
CN110701983B (zh) * | 2019-11-19 | 2021-03-30 | 中国兵器装备集团自动化研究所 | 一种同转轴多角度测量范围可变的转动角度测量装置 |
US11656100B2 (en) | 2020-10-08 | 2023-05-23 | Pulse Innovation Labs, Inc. | Angular displacement sensor |
US12119719B1 (en) * | 2023-06-21 | 2024-10-15 | Mabuchi Motor Co., Ltd. | Resolver and servo motor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08292066A (ja) * | 1995-04-21 | 1996-11-05 | Yaskawa Electric Corp | シートコイル型レゾルバ |
JP2003202240A (ja) * | 2001-11-01 | 2003-07-18 | Furukawa Electric Co Ltd:The | 回転センサと回転角度の検出方法 |
JP2005181348A (ja) * | 1996-02-15 | 2005-07-07 | Tadatoshi Goto | 位置検出装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4455555A (en) * | 1980-10-06 | 1984-06-19 | Deere & Company | Control transducer |
GB9123633D0 (en) * | 1991-11-07 | 1992-01-02 | Radiodetection Ltd | Devices comprising angular displacement sensors |
JP2740713B2 (ja) * | 1992-07-23 | 1998-04-15 | 株式会社日立製作所 | 内燃機関の点火配電器 |
JP3036285U (ja) | 1996-03-16 | 1997-04-15 | 忠敏 後藤 | シリンダ位置検出装置 |
TW389875B (en) * | 1997-09-24 | 2000-05-11 | Tamagawa Seiki Co Ltd | Terminal pin structure of resolver |
DE10146123A1 (de) * | 2001-09-19 | 2003-04-24 | Minebea Co Ltd | Elektronisch kommutierter Elektromotor mit achsparallelen Spulen |
US7053602B2 (en) * | 2002-03-25 | 2006-05-30 | The Furukawa Electric Co., Limited | Rotation sensor and method for detecting a rotation angle of a rotating member |
JP2004239683A (ja) * | 2003-02-04 | 2004-08-26 | Murata Mach Ltd | 半導体磁気抵抗素子を用いた位置変位センサ |
JP2005156348A (ja) * | 2003-11-26 | 2005-06-16 | Okuma Corp | 位置検出装置 |
JP4158858B2 (ja) * | 2003-12-04 | 2008-10-01 | 多摩川精機株式会社 | 回転角度検出器 |
JP4710047B2 (ja) * | 2005-10-14 | 2011-06-29 | 康雄 飯島 | バリアブルリラクタンス型角度検出器 |
-
2006
- 2006-07-19 JP JP2006196580A patent/JP4862118B2/ja not_active Expired - Fee Related
-
2007
- 2007-04-24 CN CN2007800004602A patent/CN101322014B/zh not_active Expired - Fee Related
- 2007-04-24 WO PCT/JP2007/058829 patent/WO2008010338A1/ja active Application Filing
- 2007-04-24 EP EP07742264A patent/EP1918681A4/en not_active Withdrawn
- 2007-04-24 US US11/921,149 patent/US7852069B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08292066A (ja) * | 1995-04-21 | 1996-11-05 | Yaskawa Electric Corp | シートコイル型レゾルバ |
JP2005181348A (ja) * | 1996-02-15 | 2005-07-07 | Tadatoshi Goto | 位置検出装置 |
JP2003202240A (ja) * | 2001-11-01 | 2003-07-18 | Furukawa Electric Co Ltd:The | 回転センサと回転角度の検出方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1918681A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012159495A (ja) * | 2011-01-10 | 2012-08-23 | Aisan Ind Co Ltd | 位置センサ |
Also Published As
Publication number | Publication date |
---|---|
US20090289622A1 (en) | 2009-11-26 |
EP1918681A4 (en) | 2012-11-14 |
JP2008029069A (ja) | 2008-02-07 |
JP4862118B2 (ja) | 2012-01-25 |
CN101322014A (zh) | 2008-12-10 |
CN101322014B (zh) | 2010-07-21 |
US7852069B2 (en) | 2010-12-14 |
EP1918681A1 (en) | 2008-05-07 |
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