JP2009175073A5 - - Google Patents

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Publication number
JP2009175073A5
JP2009175073A5 JP2008016176A JP2008016176A JP2009175073A5 JP 2009175073 A5 JP2009175073 A5 JP 2009175073A5 JP 2008016176 A JP2008016176 A JP 2008016176A JP 2008016176 A JP2008016176 A JP 2008016176A JP 2009175073 A5 JP2009175073 A5 JP 2009175073A5
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JP
Japan
Prior art keywords
magnetoresistive element
magnetic encoder
bias magnet
mounting
encoder according
Prior art date
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Application number
JP2008016176A
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Japanese (ja)
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JP5240429B2 (en
JP2009175073A (en
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Priority to JP2008016176A priority Critical patent/JP5240429B2/en
Priority claimed from JP2008016176A external-priority patent/JP5240429B2/en
Publication of JP2009175073A publication Critical patent/JP2009175073A/en
Publication of JP2009175073A5 publication Critical patent/JP2009175073A5/ja
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Publication of JP5240429B2 publication Critical patent/JP5240429B2/en
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Claims (8)

磁気抵抗素子と、
前記磁気抵抗素子にバイアス磁界を与えるバイアス磁石と、
前記磁気抵抗素子に対して対向し、相対移動する移動磁石と、
前記磁気抵抗素子を取り付けるための取り付け部品と、
前記磁気抵抗素子で検出した信号を波形整形するための検出回路と、
を備え、
前記取り付け部品は、前記バイアス磁石を位置決めするための位置決め部を有し、
前記位置決め部は、前記磁気抵抗素子取り付け領域より小さく配設される、磁気式エンコーダ。 A magnetoresistive element;
A bias magnet for applying a bias magnetic field to the magnetoresistive element;
A moving magnet facing and relatively moving with respect to the magnetoresistive element;
A mounting part for mounting the magnetoresistive element;
A detection circuit for shaping a signal detected by the magnetoresistive element ;
With
The mounting part has a positioning part for positioning the bias magnet ,
The positioning portion is less disposed than the magnetoresistive element mounting region, the magnetic encoder. 前記取り付け部品が、プリント基板であり、
前記位置決め部が、前記プリント基板にあけられた貫通穴部である、請求項１に記載の磁気式エンコーダ。 The mounting component is a printed circuit board;
The positioning portion is a through-hole drilled in the printed circuit board, a magnetic encoder according to claim 1. 前記磁気抵抗素子が、表面実装タイプの磁気抵抗素子である、請求項２に記載の磁気式エンコーダ。 The magnetoresistive element is a magnetoresistive element of a surface mounting type, magnetic encoder according to claim 2. 前記位置決め部が、前記磁気抵抗素子の実装領域で電極用パッドに囲まれた領域に配設されている、請求項３に記載の磁気式エンコーダ。 The positioning portion, the are arranged in a region surrounded by the electrode pads in the mounting region of the magnetoresistive element, a magnetic encoder according to claim 3. 前記プリント基板に設けた前記貫通穴部は、全体が角形をなし、かつ、４隅には前記バイアス磁石挿入時のバイアス磁石のカケ防止のための半円形の抜き穴を有する、請求項２〜４のいずれか１項に記載の磁気式エンコーダ。 The printed circuit board the through hole portion provided in the whole form a square, and the four corners has a semicircular drain hole for chipping prevention of the bias magnet on insertion the bias magnet, according to claim 2 5. The magnetic encoder according to any one of 4 above. 前記バイアス磁石に、磁極のＮ極とＳ極の境界を表すケガキ線と、Ｎ極またはＳ極の極性を表す印と、をつけたことを特徴とする、請求項１〜５のいずれか１項記載の磁気式エンコーダ。 The bias magnet and the scribe line representing the boundary between N and S poles of the magnetic pole, and indicia representative of the polarity of the N pole or S pole, characterized in that with a, any of claims 1 to 5 1 The magnetic encoder described in the section. 請求項４記載の磁気式エンコーダのバイアス磁石の取り付け方法において、
前記プリント基板のパッドにあわせて前記磁気抵抗素子を実装し、
その後前記磁気抵抗素子の検出部裏面に接着剤を塗布して、前記貫通穴部を利用してバイアス磁石を接着固定する、磁気式エンコーダのバイアス磁石取り付け方法。 The method of attaching a bias magnet of a magnetic encoder according to claim 4,
Implement the magnetoresistive element in accordance with the pads of the printed circuit board,
A method of attaching a bias magnet to a magnetic encoder, wherein an adhesive is applied to the back surface of the detection portion of the magnetoresistive element, and a bias magnet is bonded and fixed using the through hole. 請求項１〜６のいずれか１項に記載の磁気式エンコーダを搭載した、サーボモータ。
Equipped with magnetic encoder according to any one of claims 1 to 6, the servo motor.
JP2008016176A 2008-01-28 2008-01-28 Magnetic encoder Active JP5240429B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008016176A JP5240429B2 (en) 2008-01-28 2008-01-28 Magnetic encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008016176A JP5240429B2 (en) 2008-01-28 2008-01-28 Magnetic encoder

Publications (3)

Publication Number Publication Date
JP2009175073A JP2009175073A (en) 2009-08-06
JP2009175073A5 true JP2009175073A5 (en) 2011-10-20
JP5240429B2 JP5240429B2 (en) 2013-07-17

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ID=41030313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008016176A Active JP5240429B2 (en) 2008-01-28 2008-01-28 Magnetic encoder

Country Status (1)

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JP (1) JP5240429B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9574906B2 (en) * 2013-10-28 2017-02-21 Hitachi Metals, Ltd. Magnetic medium for magnetic encoder, magnetic encoder and method for manufacturing magnetic medium
WO2015146043A1 (en) * 2014-03-24 2015-10-01 パナソニックＩｐマネジメント株式会社 Magnetic sensor
US10094890B2 (en) 2014-10-09 2018-10-09 Panasonic Intellectual Property Management Co., Ltd. Magnetic sensor
JP2017150956A (en) * 2016-02-25 2017-08-31 アルプス電気株式会社 Position detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05119137A (en) * 1991-01-29 1993-05-18 Matsushita Electric Ind Co Ltd Ferromagnetic thin-film resistance element
JP3941082B2 (en) * 1998-01-28 2007-07-04 株式会社安川電機 Magnetic detector

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