JP6976243B2 - レゾルバ - Google Patents
レゾルバ Download PDFInfo
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- JP6976243B2 JP6976243B2 JP2018524324A JP2018524324A JP6976243B2 JP 6976243 B2 JP6976243 B2 JP 6976243B2 JP 2018524324 A JP2018524324 A JP 2018524324A JP 2018524324 A JP2018524324 A JP 2018524324A JP 6976243 B2 JP6976243 B2 JP 6976243B2
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- JP
- Japan
- Prior art keywords
- back yoke
- width
- stator
- resolver
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
- G01D5/2073—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 movement of a single coil with respect to two or more coils
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
- H02K1/2781—Magnets shaped to vary the mechanical air gap between the magnets and the stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/225—Detecting coils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
Description
Wb≧0.66×Wr
(ここで、Wbは、前記バックヨーク部の幅を示し、Wrは、前記突極の幅であって、前記突極の頂点から前記中空に至る距離を示す。)
0.66×Wr≦Wb≦8×Wr
(ここで、Wbは、前記バックヨーク部の幅を示し、Wrは、前記突極の幅であって、前記突極の頂点から前記中空に至る距離を示す。)
Wb≧0.72×Wr
(ここで、Wbは、前記バックヨーク部の幅を示し、Wrは、前記突極の幅であって、前記突極の頂点から前記中空に至る距離を示す。)
0.72×Wr≦Wb≦1×Wr
(ここで、Wbは、前記バックヨーク部の幅を示し、Wrは、前記突極の幅であって、前記突極の頂点から前記中空に至る距離を示す。)
Wb=R2−R1
Wr=R4−R3
Wb≧0.66×Wr
0.66×Wr≦Wb≦8×Wr
Wb≧0.72×Wr
0.72×Wr≦Wb≦1×Wr
突極幅Wrが7.8mmである回転子と、回転子の突極幅Wrに対するバックヨーク部幅Wbの比(Wb/Wr)が0.6から12に至る固定子から構成される複数のレゾルバサンプルを製作した。各サンプルの固定子部及び回転子部は、鉄損などの損失を最小化するために0.5mm厚さの強磁性鋼板を積層して製造した。また、固定子部は、24個の歯を有し、回転子部は10個の突極を有するように製造した。
実験条件は、実験温度24.5℃、印加電圧7Vrms、周波数10kHz、回転子部の回転速度を60rpmに設定し、幅比(Wb/Wr)以外の実験条件は、全てのレゾルバサンプルにおいて同一に維持した。モータ10の回転軸を駆動しながら、演算器40でレゾルバサンプル20の回転角度プロファイルを演算し、レゾルバサンプル20の回転角度プロファイルをエンコーダ30の回転角度プロファイルと比較することで、各サンプルの測定誤差を算出した。また、本実験例における目標とするレゾルバの最大許容誤差は±0.5゜と設定した。最大許容誤差±0.5゜を満たす測定性能を有するレゾルバは、技術的に多様な精密制御システムに適用することができ、測定精度とともに汎用性を確保することができる。
Claims (1)
- 少なくとも1相以上の励磁コイル及び少なくとも1相以上の出力コイルが配置される固定子部と、前記固定子部から所定の間隙を置いて前記固定子部の内側中心空間に配置され、回転軸を中心に回転しながら前記固定子部とのギャップパーミアンスを変化させる回転子部と、を含むレゾルバであって、
前記固定子部は、リング状本体を形成するバックヨーク部と、前記バックヨーク部の内周に形成され、前記励磁コイル及び出力コイルが巻き取られる複数の歯と、を含み、
前記回転子部は、前記回転軸が挿通する中空を有するリング状本体と、前記リング状本体の外周に形成される複数の突極と、を含み、
前記固定子部の複数の歯が各々、T字形状を有する先端部と、前記バックヨーク部の内周面から突出して前記先端部を支持し、前記励磁コイル及び前記出力コイルが巻き取られる支持部と、を含み、
前記回転子部及び前記固定子部は、一定厚さの磁性鋼板を積層した積層鋼板からなり、
前記固定子部のバックヨーク部と前記回転子部の突極とが、下記の数式を満たす関係を有し、
前記バックヨーク部の幅Wbは、前記バックヨーク部の外側半径R2から前記バックヨーク部の内側半径R1を減算した値(R2−R1)と定義され、
前記バックヨーク部の内側半径R1は、前記バックヨーク部と前記歯との境界線を連結する仮想円の半径となり、
前記突極の幅Wrは、前記回転子部の外側半径R4から前記回転子部の内側半径R3を減算した値(R4−R3)と定義され、
前記回転子部の外側半径R4は、前記複数の突極の頂点を連結する仮想円の半径となることを特徴とするレゾルバ。
<数式>
0.72×Wr≦Wb≦1×Wr
(ここで、Wbは、前記バックヨーク部の幅を示し、Wrは、前記突極の幅であって、前記突極の頂点から前記中空に至る距離を示す。)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2015-0158190 | 2015-11-11 | ||
KR1020150158190A KR101788814B1 (ko) | 2015-11-11 | 2015-11-11 | 레졸버 |
PCT/KR2015/014437 WO2017082464A1 (ko) | 2015-11-11 | 2015-12-29 | 레졸버 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018535635A JP2018535635A (ja) | 2018-11-29 |
JP6976243B2 true JP6976243B2 (ja) | 2021-12-08 |
Family
ID=58695591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018524324A Active JP6976243B2 (ja) | 2015-11-11 | 2015-12-29 | レゾルバ |
Country Status (6)
Country | Link |
---|---|
US (1) | US10634518B2 (ja) |
JP (1) | JP6976243B2 (ja) |
KR (1) | KR101788814B1 (ja) |
CN (1) | CN206401166U (ja) |
DE (1) | DE212015000326U1 (ja) |
WO (1) | WO2017082464A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112382488B (zh) * | 2020-10-20 | 2021-12-28 | 上海赢双电机有限公司 | 极数大于齿槽数的磁阻式旋转变压器及其制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3182493B2 (ja) | 1994-12-27 | 2001-07-03 | 多摩川精機株式会社 | バリアブルリラクタンス型角度検出器 |
JP3513042B2 (ja) * | 1999-02-03 | 2004-03-31 | ミネベア株式会社 | 高速回転型モータのステータ構造 |
JP2005049183A (ja) | 2003-07-28 | 2005-02-24 | Minebea Co Ltd | バリアブルリラクタンス型レゾルバ |
JP4797917B2 (ja) * | 2006-09-29 | 2011-10-19 | 日本電産株式会社 | レゾルバ、モータおよびパワーステアリング装置 |
JP5012169B2 (ja) | 2007-04-23 | 2012-08-29 | 日本電産株式会社 | レゾルバ |
JP5289420B2 (ja) * | 2010-11-30 | 2013-09-11 | 三菱電機株式会社 | レゾルバ |
US20130342040A1 (en) * | 2012-06-21 | 2013-12-26 | Ev Motor-Systems Co., Ltd. | Switched Reluctance Motor and Switched Reluctance Motor Drive System |
DE102013113657A1 (de) * | 2012-12-07 | 2014-06-12 | Denso Corporation | Rotierende elektrische Maschine in Mehrfach-Luftspalt-Ausführung |
JP2014163816A (ja) | 2013-02-26 | 2014-09-08 | Seiko Epson Corp | 磁気式エンコーダー、ロボット及び移動体 |
JP5850262B2 (ja) | 2013-03-04 | 2016-02-03 | 株式会社デンソー | 回転電機 |
KR101519730B1 (ko) * | 2013-10-14 | 2015-05-12 | 대성전기공업 주식회사 | 회전기의 레졸버 및 그 조립방법 |
-
2015
- 2015-11-11 KR KR1020150158190A patent/KR101788814B1/ko active IP Right Grant
- 2015-12-29 DE DE212015000326.4U patent/DE212015000326U1/de active Active
- 2015-12-29 JP JP2018524324A patent/JP6976243B2/ja active Active
- 2015-12-29 US US15/769,909 patent/US10634518B2/en active Active
- 2015-12-29 WO PCT/KR2015/014437 patent/WO2017082464A1/ko active Application Filing
-
2016
- 2016-11-11 CN CN201621262890.4U patent/CN206401166U/zh active Active
Also Published As
Publication number | Publication date |
---|---|
JP2018535635A (ja) | 2018-11-29 |
KR20170055249A (ko) | 2017-05-19 |
WO2017082464A1 (ko) | 2017-05-18 |
KR101788814B1 (ko) | 2017-10-20 |
US10634518B2 (en) | 2020-04-28 |
CN206401166U (zh) | 2017-08-11 |
US20180313668A1 (en) | 2018-11-01 |
DE212015000326U1 (de) | 2018-06-15 |
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