JP7314113B2 - レゾルバ - Google Patents
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- JP7314113B2 JP7314113B2 JP2020205916A JP2020205916A JP7314113B2 JP 7314113 B2 JP7314113 B2 JP 7314113B2 JP 2020205916 A JP2020205916 A JP 2020205916A JP 2020205916 A JP2020205916 A JP 2020205916A JP 7314113 B2 JP7314113 B2 JP 7314113B2
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- 238000001514 detection method Methods 0.000 claims description 118
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- 238000010586 diagram Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 11
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 6
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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
- G01D5/2086—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 two or more coils with respect to two or more other coils
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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
- G01D5/2046—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
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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
-
- 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
- G01D5/2053—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 non-ferromagnetic conductive element
- G01D5/206—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 non-ferromagnetic conductive element constituting a short-circuiting element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
[1-1. 概要]
図1は実施例としてのレゾルバ1の構造を示す模式図である。このレゾルバ1は、振幅変調された交流信号を入力し、それを用いて位相変調された信号から回転角を検出する変調波レゾルバである。レゾルバ1は、ロータ2(回転子)とステータ3(固定子)と制御装置4とを備える。ロータ2は、ステータ3に対して回転可能に軸支される円盤状の部材である。また、ステータ3は、図示しないケーシングに対して固定される円盤状の部材である。ロータ2,ステータ3の各々には、シート状に形成された複数のシートコイルが設けられる。本実施例はフレキシブル基板(FPC,Flexible Printed Circuits)にコイルを形成した例を示すが、ガラス布をエポキシ樹脂で固めたガラスエポキシ基板のようなリジット基板を用いてもよい。
図3は、ステータ3側の具体的な回路構造を例示する分解斜視図であり、図4はその回路構造を正面から見たときの模式図である。ロータ2およびステータ3の対向面において、ステータ3側には正弦励磁コイル11と余弦励磁コイル12と正弦検出コイル21と余弦検出コイル22とが設けられる。正弦励磁コイル11および余弦励磁コイル12は、ロータ2側の検出コイル13と対向する位置において、周方向に交互に隣接するように配置される。また、正弦検出コイル21および余弦検出コイル22は、ロータ2側の励磁コイル23と対向する位置において環状に配置される。
図6は、ロータ2側の具体的な回路構造を例示する分解斜視図であり、図7はその回路構造を正面から見たときの模式図である。ロータ2およびステータ3の対向面において、ロータ2側には検出コイル13と励磁コイル23とが設けられる。励磁コイル23は、検出コイル13の内側に配置される。検出コイル13は、ステータ3側の正弦励磁コイル11や余弦励磁コイル12に対向して環状に配置される。同様に、励磁コイル23は、ステータ3側の正弦検出コイル21や余弦検出コイル22に対向して環状に配置される。
(1)上記のレゾルバ1では、検出コイル13で得られた信号をそのままステータ3側へと伝達するためのアンテナコイルが省略されている。また、軸倍角がnXの第一コイル群10と軸倍角が1Xの第二コイル群20とが設けられ、両方のコイル群10,20が信号伝達経路において直列に配置されている。例えば、信号生成回路5で生成された交流信号は、第一コイル群10を介してロータ2側へと伝達された後、第二コイル群20を介して再びステータ3側に返送されて信号処理回路6へと入力される。つまり、交流信号がステータ3からロータ2へと伝達される過程では第一コイル群10が利用され、その交流信号がロータ2からステータ3へと伝達される過程では第二コイル群20が利用される。
上記の実施例はあくまでも例示に過ぎず、本実施例で明示しない種々の変形や技術の適用を排除する意図はない。本実施例の各構成は、それらの趣旨を逸脱しない範囲で種々変形して実施できる。また、本実施例の各構成は必要に応じて取捨選択でき、あるいは、公知技術に含まれる各種構成と適宜組み合わせることができる。
2 ロータ
3 ステータ
4 制御装置
5 信号生成回路
6 信号処理回路
10 第一コイル群
11 正弦励磁コイル
11A 往路コイル
11B 復路コイル
12 余弦励磁コイル
12A 往路コイル
12B 復路コイル
13 検出コイル
13A 往路コイル
13B 復路コイル
20 第二コイル群
21 正弦検出コイル
21A 往路コイル
21B 復路コイル
22 余弦検出コイル
22A 往路コイル
22B 復路コイル
23 励磁コイル
23A 往路コイル
23B 復路コイル
Claims (5)
- ロータのステータに対する回転角を検出するレゾルバであって、
前記ステータに設けられ、電気角の位相が互いに90度相違する交流信号を伝達する正弦励磁コイルおよび余弦励磁コイルと、
前記ロータに設けられ、前記正弦励磁コイルおよび前記余弦励磁コイルに対向配置される検出コイルと、
前記検出コイルとともに前記ロータ側で閉回路を形成する励磁コイルと、
前記ステータに設けられ、前記励磁コイルに対向配置されるとともに、電気角の位相が互いに90度相違する交流信号を伝達する正弦検出コイルおよび余弦検出コイルと、
を備え、
前記正弦検出コイル,前記余弦検出コイル,前記励磁コイルの軸倍角が、前記正弦励磁コイル,前記余弦励磁コイル,前記検出コイルの軸倍角と相違する
ことを特徴とする、レゾルバ。 - 前記ロータの回転軸を中心とした内円および外円と前記回転軸を通る二直線とで囲まれる領域が、部分円環領域と定義され、
前記正弦励磁コイルおよび前記余弦励磁コイルが、同一平面上で周方向に交互に隣接配置され、
前記正弦励磁コイルおよび前記余弦励磁コイルの各々が、互いに接続された一対のくし型閉コイルを前記部分円環領域内で重ならないように配置された構造を備えるとともに、
前記一対のくし型閉コイルが、前記外円側の円弧から前記内円側の円弧に向かって歯を延ばしたくしの輪郭をなすように導体を配索してなる第一くし型閉コイルと、前記内円側の円弧から前記外円側の円弧に向かって歯を延ばしたくしの輪郭をなすように導体を配索してなる第二くし型閉コイルとを有する
ことを特徴とする、請求項1記載のレゾルバ。 - 前記正弦励磁コイル,前記余弦励磁コイル,前記正弦検出コイル,前記余弦検出コイルの各々が、磁極対の一方を生成するための往路コイルと前記磁極対の他方を生成するための復路コイルとを有し、
前記往路コイルおよび前記復路コイルの各々が、互いに重ならないように同一平面上に配置される
ことを特徴とする、請求項1または2記載のレゾルバ。 - 前記正弦検出コイル,前記余弦検出コイル,前記励磁コイルの軸倍角がnXであり、
前記正弦励磁コイル,前記余弦励磁コイル,前記検出コイルの軸倍角が1Xである
ことを特徴とする、請求項1~3のいずれか1項に記載のレゾルバ。 - 前記正弦検出コイル,前記余弦検出コイル,前記励磁コイルの軸倍角がnXであり、
前記正弦励磁コイル,前記余弦励磁コイル,前記検出コイルの軸倍角が(n-1)Xである
ことを特徴とする、請求項1~3のいずれか1項に記載のレゾルバ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020205916A JP7314113B2 (ja) | 2020-12-11 | 2020-12-11 | レゾルバ |
CN202180082220.1A CN116648599B (zh) | 2020-12-11 | 2021-12-10 | 旋转变压器 |
US18/256,426 US20240035859A1 (en) | 2020-12-11 | 2021-12-10 | Resolver |
PCT/JP2021/045688 WO2022124416A1 (ja) | 2020-12-11 | 2021-12-10 | レゾルバ |
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JP2020205916A JP7314113B2 (ja) | 2020-12-11 | 2020-12-11 | レゾルバ |
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JP2022092918A JP2022092918A (ja) | 2022-06-23 |
JP7314113B2 true JP7314113B2 (ja) | 2023-07-25 |
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JP2020205916A Active JP7314113B2 (ja) | 2020-12-11 | 2020-12-11 | レゾルバ |
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US (1) | US20240035859A1 (ja) |
JP (1) | JP7314113B2 (ja) |
CN (1) | CN116648599B (ja) |
WO (1) | WO2022124416A1 (ja) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4269330B2 (ja) * | 1998-03-10 | 2009-05-27 | 株式会社安川電機 | シートコイル形レゾルバ |
US6628038B1 (en) * | 1999-01-14 | 2003-09-30 | Kabushiki Kaisha Yaskawa Kenki | Resolver using sheet coil |
JP5342963B2 (ja) * | 2009-08-25 | 2013-11-13 | ミネベア株式会社 | シートコイル型レゾルバ |
US8729887B2 (en) * | 2009-11-09 | 2014-05-20 | Aisan Kogyo Kabushiki Kaisha | Rotation angle sensor |
JP5174945B2 (ja) * | 2011-09-02 | 2013-04-03 | 日本航空電子工業株式会社 | バリアブルリラクタンス型レゾルバ及び回転角検出装置 |
JP6345386B2 (ja) * | 2012-12-13 | 2018-06-20 | ミネベアミツミ株式会社 | 回転角検出装置 |
CN104753279B (zh) * | 2013-12-28 | 2017-12-01 | 黄劭刚 | 交流变频感应无刷励磁的单电枢同步电机 |
JP6211235B2 (ja) * | 2015-06-05 | 2017-10-11 | 三菱電機株式会社 | レゾルバ、回転電機、及びエレベータ用巻上機 |
JP2019033575A (ja) * | 2017-08-07 | 2019-02-28 | マブチモーター株式会社 | 位置センサ及びモータ |
JP7118766B2 (ja) * | 2018-06-25 | 2022-08-16 | マブチモーター株式会社 | レゾルバ |
DE102019213174B9 (de) * | 2019-08-30 | 2023-04-06 | Infineon Technologies Ag | Induktiver winkelsensor |
-
2020
- 2020-12-11 JP JP2020205916A patent/JP7314113B2/ja active Active
-
2021
- 2021-12-10 US US18/256,426 patent/US20240035859A1/en active Pending
- 2021-12-10 WO PCT/JP2021/045688 patent/WO2022124416A1/ja active Application Filing
- 2021-12-10 CN CN202180082220.1A patent/CN116648599B/zh active Active
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US20240035859A1 (en) | 2024-02-01 |
WO2022124416A1 (ja) | 2022-06-16 |
CN116648599A (zh) | 2023-08-25 |
JP2022092918A (ja) | 2022-06-23 |
CN116648599B (zh) | 2024-04-09 |
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