JP2007300769A - Motor - Google Patents

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JP2007300769A
JP2007300769A JP2006128807A JP2006128807A JP2007300769A JP 2007300769 A JP2007300769 A JP 2007300769A JP 2006128807 A JP2006128807 A JP 2006128807A JP 2006128807 A JP2006128807 A JP 2006128807A JP 2007300769 A JP2007300769 A JP 2007300769A
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Prior art keywords
detection device
magnetic detection
rotor
stator
motor
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Japanese (ja)
Inventor
Yukinori Nakagawa
幸典 中川
Yuichi Yoshikawa
祐一 吉川
Tora Ri
虎 李
Masahiko Morizaki
昌彦 森崎
Yoshio Kobayashi
佳生 小林
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2006128807A priority Critical patent/JP2007300769A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor arranged to rotate the rotor by sensing leakage flux of a permanent magnet attached to the rotor of the motor by means of a magnetic detector such as a Hall IC and detecting the rotor position in which detection precision of rotor position is enhanced. <P>SOLUTION: A magnetic detector holding component 31 is longer than a magnetic detector wiring board 32 in the circumferential direction and positioned by a magnetic detector containing case 33. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、内側ロータ又は、外側ロータ又は、内側ロータ、外側ロータの二つのロータを搭載するモータに関する。   The present invention relates to a motor on which two rotors of an inner rotor, an outer rotor, an inner rotor, and an outer rotor are mounted.

従来のモータを図５に示す。
図５は、従来の突極集中巻き方式のブラシレスモータを表しており、ステータ１０とロータ２０と磁気検出装置３０より構成されている。 A conventional motor is shown in FIG.
FIG. 5 shows a conventional salient pole concentrated winding type brushless motor, which includes a stator 10, a rotor 20, and a magnetic detection device 30.

ステータ１０は、略円環状のヨーク１１と、ヨーク１１より外径に伸びる外側ティース１２とからなり、外側ティース１２には３相結線されたコイル１５が施されている。通常、コイル１５はスターないしはデルタ結線されている。   The stator 10 includes a substantially annular yoke 11 and an outer tooth 12 extending from the yoke 11 to an outer diameter, and the outer tooth 12 is provided with a three-phase coil 15. Usually, the coil 15 is star-connected or delta-connected.

ロータ２０は、ステータ１０の外側に回転自在に保持され、外側ロータ２２と永久磁石２３とから成る。また、磁気検出装置３０は磁気検出装置３０を保持する磁気検出装置保持部品３１、磁気検出装置３０を配線する磁気検出装置配線基板３２及び磁気検出装置３０、前記磁気検出装置保持部品３１、前記磁気検出装置配線基板３２を収納する磁気検出装置収納ケース３３より構成される。（例えば特許文献１参照）
特開２００６−１４５２１号公報（第７頁、図２） The rotor 20 is rotatably held outside the stator 10 and includes an outer rotor 22 and a permanent magnet 23. The magnetic detection device 30 includes a magnetic detection device holding component 31 for holding the magnetic detection device 30, a magnetic detection device wiring board 32 for wiring the magnetic detection device 30, and the magnetic detection device 30, the magnetic detection device holding component 31, and the magnetism. It comprises a magnetic detection device storage case 33 for storing the detection device wiring board 32. (For example, see Patent Document 1)
Japanese Patent Laying-Open No. 2006-14521 (page 7, FIG. 2)

しかし、従来のモータの磁気検出装置３０のステータ１０に対する位置は、磁気検出装置３０と磁気検出装置保持部品３１の位置決め、磁気検出装置保持部品３１と磁気検出装置配線基板３２の位置決め、磁気検出装置配線基板３２と磁気検出装置収納ケース３３の位置決め、磁気検出装置収納ケース３３とステータ１０の位置決めにて決まる。位置決め部が４箇所存在し、磁気検出装置３０のステータ１０に対する位置のばらつきが大きく、ロータの位置検出が精度よく実施できず、モータ回転時の振動、騒音が課題となる。 However, the position of the conventional motor with respect to the stator 10 of the magnetic detection device 30 is determined by positioning the magnetic detection device 30 and the magnetic detection device holding component 31, positioning the magnetic detection device holding component 31 and the magnetic detection device wiring board 32, and the magnetic detection device. It is determined by positioning of the wiring board 32 and the magnetic detection device storage case 33 and positioning of the magnetic detection device storage case 33 and the stator 10. There are four positioning portions, the position of the magnetic detection device 30 with respect to the stator 10 varies greatly, the rotor position cannot be accurately detected, and vibration and noise during motor rotation are problems.

上記課題を解決するために本発明の磁気検出装置保持部品３１は、円周方向に磁気検出装置配線基板３２より長く構成されており、磁気検出装置保持部品３１は磁気検出装置収納ケース３３に位置決めされることを特徴とするモータである。   In order to solve the above problems, the magnetic detection device holding component 31 of the present invention is configured to be longer than the magnetic detection device wiring board 32 in the circumferential direction, and the magnetic detection device holding component 31 is positioned in the magnetic detection device storage case 33. It is a motor characterized by being made.

上記発明のモータの磁気検出装置３０のステータ１０に対する位置は、磁気検出装置３０と磁気検出装置保持部品３１の位置決め、磁気検出装置保持部品３１と磁気検出装置収納ケース３３の位置決め、磁気検出装置収納ケース３３とステータ１０の位置決めにて決まる。位置決め部が３箇所となり、従来のモータと比較して磁気検出装置３０のステータ１０に対する位置のばらつきが小さく、ロータの位置検出が精度よく実施でき、モータ回転時の振動、騒音の低減が可能となる。（請求項１記載の発明）
また、磁気検出装置保持部品及び、ステータに位置決め用凹部、又は凸部を有し互いに勘合させ磁気検出装置保持部品をステータに位置決めすれば、磁気検出装置３０のステータ１０に対する位置は、磁気検出装置３０と磁気検出装置保持部品３１の位置決め、磁気検出装置保持部品３１とステータ１０の位置決めにて決まる。位置決め部が２箇所となり、従来のモータと比較して磁気検出装置３０のステータ１０に対する位置のばらつきが小さく、ロータの位置検出が精度よく実施でき、モータ回転時の振動、騒音の低減が可能となる。（請求項３記載の発明）
また、複数個配置された磁気検出装置の内、少なくとも１つの磁気検出装置の極性をその他の磁気検出装置と反転させて使用する場合がある。これは磁気検出装置の極性を反転させることで磁気検出装置の配置スパンを短くでき、磁気検出装置配線基板や磁気検出装置収納ケースをコンパクトにできるからである。一方、磁気検出装置の軸方向の磁気検出中心は磁気検出装置の中心と比較してずれている。本発明は、上記構成のモータにおいて、極性を反転させた磁気検出装置とさせていない磁気検出装置の軸方向位置を磁気検出装置保持部品の軸方向高さを変えることで実現し、各々の磁気検出装置の磁気検出精度を同一精度にしている。（請求項４記載の発明） The position of the magnetic detection device 30 of the present invention with respect to the stator 10 is determined by positioning the magnetic detection device 30 and the magnetic detection device holding component 31, positioning the magnetic detection device holding component 31 and the magnetic detection device storage case 33, and storing the magnetic detection device. It is determined by the positioning of the case 33 and the stator 10. There are three positioning parts, and the variation of the position of the magnetic detection device 30 with respect to the stator 10 is small compared to the conventional motor, the position of the rotor can be accurately detected, and vibration and noise during motor rotation can be reduced. Become. (Invention of Claim 1)
Further, if the magnetic detection device holding component and the stator have positioning concave portions or convex portions and are fitted together to position the magnetic detection device holding component on the stator, the position of the magnetic detection device 30 relative to the stator 10 is 30 and the positioning of the magnetic detection device holding component 31 and the positioning of the magnetic detection device holding component 31 and the stator 10. There are two positioning parts, and the variation of the position of the magnetic detection device 30 with respect to the stator 10 is small compared to a conventional motor, the position of the rotor can be accurately detected, and vibration and noise during motor rotation can be reduced. Become. (Invention of Claim 3)
Further, there are cases where the polarity of at least one magnetic detection device among a plurality of magnetic detection devices arranged is reversed with respect to other magnetic detection devices. This is because by reversing the polarity of the magnetic detection device, the arrangement span of the magnetic detection device can be shortened, and the magnetic detection device wiring board and the magnetic detection device storage case can be made compact. On the other hand, the magnetic detection center in the axial direction of the magnetic detection device is deviated from the center of the magnetic detection device. According to the present invention, in the motor having the above-described configuration, the axial position of the magnetic detection device that is not reversed and the magnetic detection device that is not reversed is realized by changing the axial height of the magnetic detection device holding component. The magnetic detection accuracy of the detector is the same. (Invention of Claim 4)

以下、請求項１記載の発明について図１を用いて説明する。
図１のモータは、トロイダル巻き方式のブラシレスモータを表しており、ステータ１０、ロータ２０、磁気検出装置３０より構成されている。
ステータ１０は略環状のヨーク１１と、複数のヨーク１１から外周方向に突出した外側ティース１２と外側ティース１２と同数でヨーク１１から内周側に突出した内側ティース１３とからなるステータコア１４と、ヨーク１１に３相スターもしくはデルタ状に結線されトロイダル巻線を施した複数のコイル１５を有する。ロータ２０は、ステータ１０に対し回転自在に保持されており、ステータ１０の内径側に対向する内側ロータ２１と、外径側に対向する外側ロータ２２とで構成され、内側ロータ２１と外側ロータ２２の前記ステータティースに対向する位置に永久磁石２３が配置されている。また、磁気検出装置３０は磁気検出装置３０を保持する磁気検出装置保持部品３１、磁気検出装置３０を配線する磁気検出装置配線基板３２及び磁気検出装置３０、磁気検出装置保持部品３１、磁気検出装置配線基板３２を収納する磁気検出装置収納ケース３３より構成される。また、磁気検出装置収納ケース３３に収納後、防湿用樹脂３４にてポッティングされている。
図１の磁気検出装置保持部品３１は円周方向に磁気検出装置配線基板３２より長く構成されており、磁気検出装置保持部品３１は磁気検出装置収納ケース３３にて位置決めされている。
本モータの磁気検出装置３０のステータ１０に対する位置は、磁気検出装置３０と磁気検出装置保持部品３１の位置決め、磁気検出装置保持部品３１と磁気検出装置収納ケース３３の位置決め、磁気検出装置収納ケース３３とステータ１０の位置決めにて決まる。位置決め部が３箇所となり、従来のモータと比較して磁気検出装置３０のステータ１０に対する位置のばらつきが小さく、ロータの位置検出が精度よく実施でき、モータ回転時の振動、騒音の低減が可能となる
請求項２記載の発明のモータを図２に示す。モータは、磁気検出装置保持部品及び、磁気検出装置収納ケースに位置決め用凹部、又は凸部を有し互いに勘合させ、磁気検出装置保持部品を磁気検出装置収納ケースに位置決めすることができ構成で、請求項１記載のモータと同様に、ロータの位置検出が精度よく実施できる。 The invention described in claim 1 will be described below with reference to FIG.
The motor shown in FIG. 1 represents a toroidal winding brushless motor, and includes a stator 10, a rotor 20, and a magnetic detection device 30.
The stator 10 includes a substantially annular yoke 11, a stator core 14 including outer teeth 12 projecting from the plurality of yokes 11 in the outer circumferential direction, and inner teeth 13 projecting from the yoke 11 to the inner circumferential side in the same number as the outer teeth 12. 11 includes a plurality of coils 15 connected in a three-phase star or delta shape and provided with toroidal windings. The rotor 20 is rotatably held with respect to the stator 10, and includes an inner rotor 21 that faces the inner diameter side of the stator 10, and an outer rotor 22 that faces the outer diameter side. A permanent magnet 23 is arranged at a position facing the stator teeth. The magnetic detection device 30 includes a magnetic detection device holding component 31 for holding the magnetic detection device 30, a magnetic detection device wiring board 32 for wiring the magnetic detection device 30, a magnetic detection device 30, a magnetic detection device holding component 31, and a magnetic detection device. The magnetic detection device storage case 33 is configured to store the wiring board 32. Further, after being stored in the magnetic detection device storage case 33, it is potted with a moisture-proof resin 34.
The magnetic detection device holding component 31 in FIG. 1 is configured to be longer than the magnetic detection device wiring board 32 in the circumferential direction, and the magnetic detection device holding component 31 is positioned in the magnetic detection device storage case 33.
The position of the magnetic detection device 30 of the motor with respect to the stator 10 is determined by positioning the magnetic detection device 30 and the magnetic detection device holding component 31, positioning the magnetic detection device holding component 31 and the magnetic detection device storage case 33, and the magnetic detection device storage case 33. And the positioning of the stator 10. There are three positioning parts, and the variation of the position of the magnetic detection device 30 with respect to the stator 10 is small compared to the conventional motor, the position of the rotor can be accurately detected, and vibration and noise during motor rotation can be reduced. A motor according to the second aspect of the present invention is shown in FIG. The motor has a configuration in which the magnetic detection device holding component and the magnetic detection device storage case have a concave or convex portion for positioning and are fitted together to position the magnetic detection device holding component in the magnetic detection device storage case. As with the motor according to the first aspect, the rotor position can be detected with high accuracy.

請求項３記載のモータは図３に示すように磁気検出装置保持部品３１及び、ステータ１０に位置決め用凹部、又は凸部３５を有し互いに勘合させることで磁気検出装置保持部品３１をステータ１０に位置決めしている。本モータの磁気検出装置３０のステータ１０に対する位置は、磁気検出装置３０と磁気検出装置保持部品３１の位置決め、磁気検出装置保持部品３１とステータ１０の位置決めにて決まる。位置決め部が２箇所となり、従来のモータと比較して磁気検出装置３０のステータ１０に対する位置のばらつきが小さく、ロータの位置検出が精度よく実施でき、モータ回転時の振動、騒音の低減が可能となる。（請求項３記載の発明）
請求項４記載の発明のモータを図４に示す。モータは、複数個配置された磁気検出装置３０の内、極性を反転させた磁気検出装置３６を少なくとも１つ有する構成で、極性を反転させた磁気検出装置３６とさせていない磁気検出装置の軸方向位置を磁気検出装置保持部品３１の軸方向高さを変えることで実現し、各々の磁気検出装置３０の磁気検出精度を同一精度にしている。 As shown in FIG. 3, the motor according to claim 3 has a magnetic detection device holding component 31 and a positioning concave portion or convex portion 35 in the stator 10, so that the magnetic detection device holding component 31 is fitted to the stator 10. Positioning. The position of this motor with respect to the stator 10 of the magnetic detection device 30 is determined by the positioning of the magnetic detection device 30 and the magnetic detection device holding component 31 and the positioning of the magnetic detection device holding component 31 and the stator 10. There are two positioning parts, and the variation of the position of the magnetic detection device 30 with respect to the stator 10 is small compared to a conventional motor, the position of the rotor can be accurately detected, and vibration and noise during motor rotation can be reduced. Become. (Invention of Claim 3)
A motor according to a fourth aspect of the present invention is shown in FIG. The motor has at least one magnetic detection device 36 with the polarity reversed among the plurality of magnetic detection devices 30 arranged, and the axis of the magnetic detection device that is not used as the magnetic detection device 36 with the polarity reversed. The direction position is realized by changing the height in the axial direction of the magnetic detection device holding component 31, and the magnetic detection accuracy of each magnetic detection device 30 is made the same.

本発明のモータは、磁気検出装置を内蔵するモータに効果的である。   The motor of the present invention is effective for a motor incorporating a magnetic detection device.

（ａ）は請求項１記載の発明の実施例を示したモータの部分断面図、（ｂ）は矢視断面図(A) is a partial cross-sectional view of a motor showing an embodiment of the invention according to claim 1, (b) is a cross-sectional view taken in the direction of an arrow. 請求項２記載の発明の実施例を示したモータの部分断面図Partial sectional view of a motor showing an embodiment of the invention as claimed in claim 2 請求項３記載の発明の実施例を示したモータの部分断面図Partial sectional view of a motor showing an embodiment of the invention as claimed in claim 3 請求項４記載の発明の実施例を示したモータの部分断面図Partial sectional view of a motor showing an embodiment of the invention as claimed in claim 4 （ａ）は従来例を示したモータの部分断面図、（ｂ）は矢視断面図(A) is a partial cross-sectional view of a motor showing a conventional example, and (b) is a cross-sectional view taken along an arrow.

符号の説明Explanation of symbols

１０ ステータ
１１ ヨーク
１２ 外側ティース
１３ 内側ティース
１４ ステータコア
１５ コイル
２０ ロータ
２１ 内側ロータ
２２ 外側ロータ
２３ 永久磁石
３０ 磁気検出装置
３１ 磁気検出装置保持部品
３２ 磁気検出装置配線基板
３３ 磁気検出装置収納ケース
３４ 防湿用樹脂
３５ 位置決め用凹部、又は凸部
DESCRIPTION OF SYMBOLS 10 Stator 11 Yoke 12 Outer teeth 13 Inner teeth 14 Stator core 15 Coil 20 Rotor 21 Inner rotor 22 Outer rotor 23 Permanent magnet 30 Magnetic detector 31 Magnetic detector holding part 32 Magnetic detector wiring board 33 Magnetic detector storage case 34 For moisture prevention Resin 35 concave or convex for positioning

Claims (4)

モータは、略環状のヨークと前記ヨークに設けた複数のティースとからなるステータコアの前記ヨーク又は前記ティースに３相スターもしくはデルタ状に結線された巻線を施した複数のコイルを有するステータと、前記ステータに対して回転自在に保持されたロータとからなり、前記ティースは、前記ヨークから外周方向に突出した外側ティースと前記ヨークから内周方向に突出した内側ティースからなり、前記ロータは、ステータの内径側に対向する内側ロータと外径側に対向する外側ロータで構成され、前記内側ロータと前記外側ロータの前記ティースに対向する位置に永久磁石が配置され、前記永久磁石の漏れ磁束を磁気検出装置にて検知しロータの位置を検出してロータを回転させる構成であり、前記磁気検出装置を保持する磁気検出装置保持部品、前記磁気検出装置を配線する磁気検出装置配線基板及び前記磁気検出装置、前記磁気検出装置保持部品、前記磁気検出装置配線基板を収納する磁気検出装置収納ケースより構成される。
前記磁気検出装置保持部品は円周方向に前記磁気検出装置配線基板より長く構成されており、前記磁気検出装置保持部品は前記磁気検出装置収納ケースにて位置決めされることを特徴とするモータ The motor includes a stator having a substantially annular yoke and a plurality of coils provided with windings connected to the teeth in a three-phase star or delta shape in the stator core composed of a plurality of teeth provided on the yoke. A rotor rotatably supported with respect to the stator, and the teeth include an outer tooth protruding from the yoke in an outer peripheral direction and an inner tooth protruding from the yoke in an inner peripheral direction, and the rotor is a stator An inner rotor facing the inner diameter side and an outer rotor facing the outer diameter side, and a permanent magnet is arranged at a position facing the teeth of the inner rotor and the outer rotor, and magnetic flux leakage from the permanent magnet is magnetized. The configuration is such that the detection device detects the position of the rotor and rotates the rotor, and the magnetic detection device holds the magnetic detection device. Device holding part, the magnetic detection device wiring board and the magnetic detection device for wiring the magnetic detection device, the magnetic detection device holding part, composed of a magnetic detection device housing case for housing the magnetic detection device wiring board.
The magnetic detection device holding component is configured to be longer than the magnetic detection device wiring board in a circumferential direction, and the magnetic detection device holding component is positioned in the magnetic detection device storage case. 磁気検出装置保持部品及び、磁気検出装置収納ケースに位置決め用凹部、又は凸部を有し互いに勘合させることで磁気検出装置保持部品を磁気検出装置収納ケースに位置決めすることを特徴とするモータ A magnetic detection device holding component and a motor having a concave portion or a convex portion for positioning in the magnetic detection device storage case, and positioning the magnetic detection device holding component in the magnetic detection device storage case by being fitted to each other 磁気検出装置保持部品及び、ステータに位置決め用凹部、又は凸部を有し互いに勘合させることで磁気検出装置保持部品をステータに位置決めすることを特徴とするモータ A magnetic detecting device holding component and a motor having positioning concave portions or convex portions on the stator, and positioning the magnetic detecting device holding components on the stator by fitting with each other 複数個配置された磁気検出装置の内、少なくとも１つの磁気検出装置の極性をその他の磁気検出装置と反転させたモータにおいて、極性を反転させた磁気検出装置とさせていない磁気検出装置の軸方向位置を変えることを特徴とするモータ Axial direction of a magnetic detection device that is not a magnetic detection device in which the polarity is reversed in a motor in which the polarity of at least one magnetic detection device is reversed from that of other magnetic detection devices among a plurality of magnetic detection devices arranged Motor characterized by changing position
JP2006128807A 2006-05-08 2006-05-08 Motor Pending JP2007300769A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2013140685A1 (en) * 2012-03-21 2013-09-26 株式会社 東芝 Motor

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JPH06276720A (en) * 1993-03-15 1994-09-30 Sanyo Electric Co Ltd Dc brushless motor
JP2002252946A (en) * 2000-12-22 2002-09-06 Mitsuba Corp Motor system
JP2003164125A (en) * 2001-11-27 2003-06-06 Denso Corp Both sided air gap type rotary electric machine
JP2005333741A (en) * 2004-05-20 2005-12-02 Toshiba Corp Motor

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Publication number Priority date Publication date Assignee Title
JPH06276720A (en) * 1993-03-15 1994-09-30 Sanyo Electric Co Ltd Dc brushless motor
JP2002252946A (en) * 2000-12-22 2002-09-06 Mitsuba Corp Motor system
JP2003164125A (en) * 2001-11-27 2003-06-06 Denso Corp Both sided air gap type rotary electric machine
JP2005333741A (en) * 2004-05-20 2005-12-02 Toshiba Corp Motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013140685A1 (en) * 2012-03-21 2013-09-26 株式会社 東芝 Motor
JP2013198312A (en) * 2012-03-21 2013-09-30 Toshiba Corp Motor
CN104205584A (en) * 2012-03-21 2014-12-10 株式会社东芝 Motor

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