JPS61147749A - Motor - Google Patents

Motor

Info

Publication number
JPS61147749A
JPS61147749A JP59270164A JP27016484A JPS61147749A JP S61147749 A JPS61147749 A JP S61147749A JP 59270164 A JP59270164 A JP 59270164A JP 27016484 A JP27016484 A JP 27016484A JP S61147749 A JPS61147749 A JP S61147749A
Authority
JP
Japan
Prior art keywords
magnetic
detector
detection element
rotor
bent portion
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.)
Pending
Application number
JP59270164A
Other languages
Japanese (ja)
Inventor
Kikuo Komiyama
小宮山　菊夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP59270164A priority Critical patent/JPS61147749A/en
Publication of JPS61147749A publication Critical patent/JPS61147749A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices
    • 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
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

PURPOSE:To increase the detected output by bending part of a magnetic yoke plate, securing a magnetic detector to the bent portion to oppose to a rotor permanent magnet, thereby eliminating the mounting parts of the detector. CONSTITUTION:A permanent magnet 3 is mounted on a rotor 1, a magnetic detector 4 is provided oppositely thereto, and when the rotating speed of the rotor 1 is detected by the output, part of a magnetic yoke plate 7 is bent to form a bent portion 7a, and a magnetic detector 4 is secured thereto. Thus, the mounting parts and screws of the detector 4 can be eliminated to reduce the number of parts, and a magnetic field acting on the detector 4 is increased to raise the detected output.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、回転子が１回転するごとに１回の信号ケ発
生する電動機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric motor that generates one signal every time its rotor rotates once.

〔従来の技術〕[Conventional technology]

第２図は従来の電動機図示す斜視図である。この図にお
いて、１は回転子、２は電動機の駆動回路、３は前記回
転子１の外周に固着された永久磁石、４はホール素子ま
たはホールＩＣ等からなる磁気検出素子、５は前記磁気
検出素子４が固着されている取付部品、６はねじで、取
付部品５をヨーク板７に固定する。ヨーク板Ｔは磁気材
料からなり、ａｉｇｔ遍断機能を有し、その上面で駆動
回路２や磁気検出素子４等の電気的接続も行う。なお。FIG. 2 is a perspective view of a conventional electric motor. In this figure, 1 is a rotor, 2 is a motor drive circuit, 3 is a permanent magnet fixed to the outer periphery of the rotor 1, 4 is a magnetic detection element such as a Hall element or a Hall IC, and 5 is the magnetic detection element. The mounting part 5 to which the element 4 is fixed is fixed to the yoke plate 7 using screws 6. The yoke plate T is made of a magnetic material, has an aigt dividing function, and is also electrically connected to the drive circuit 2, magnetic detection element 4, etc. on its upper surface. In addition.

固定子および回転軸は図示していない。The stator and rotating shaft are not shown.

次忙動作について説明する。従来の電動機は上記のよう
に構成され、駆動回路２が回転子１を所定速度に回転さ
せる。回転子１が１回転するごとに、永久磁石３が磁気
検出素子４と対向し、そのとき、永久磁石３の磁界を磁
気検出素子４が検知し信号を出力する。この信号は１回
転子１の基準位置検知等に用いられる。Next busy action will be explained. A conventional electric motor is configured as described above, and the drive circuit 2 rotates the rotor 1 at a predetermined speed. Every time the rotor 1 rotates once, the permanent magnet 3 faces the magnetic detection element 4, and at that time, the magnetic detection element 4 detects the magnetic field of the permanent magnet 3 and outputs a signal. This signal is used for detecting the reference position of one rotor 1, etc.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上記のような従来の電動機は、磁気検出素子４の位置が
動かないようにねじ６等で固定するための取付部品５を
必要とするという問題点があった。The conventional electric motor as described above has a problem in that it requires a mounting part 5 for fixing the magnetic detection element 4 with a screw 6 or the like so that the position of the magnetic detection element 4 does not move.

この分明は、上記問題点を解決するためになされたもの
で、取付部品およびねじｔ不要とした１ａ動磯を得るこ
とを目的とする。This discovery was made in order to solve the above-mentioned problems, and the purpose is to obtain a 1a moving rock that does not require mounting parts or screws.

〔問題点を解決するための手段〕[Means for solving problems]

この発明に係る電動機は、磁性材料からなるヨーク板の
一部ｌ折り曲げて折曲部を形成し、この折曲部に磁気検
出素子を固着したものである。In the electric motor according to the present invention, a portion of a yoke plate made of a magnetic material is bent to form a bent portion, and a magnetic detection element is fixed to this bent portion.

〔作用〕[Effect]

この発明においては、折曲部がねじｔ用いずに構成され
ており、かつ折曲部が磁性材料であるため、磁気検出素
子に使用する磁界が強められて磁気検出素子の出力が大
となる。In this invention, since the bent portion is constructed without using a screw T and the bent portion is made of a magnetic material, the magnetic field used for the magnetic detection element is strengthened and the output of the magnetic detection element is increased. .

〔実施例〕〔Example〕

第１図はこの発明の一実施例を示す斜視図である。この
図において、第２図と同一符号は同一部分ケ示し、７ａ
は前記ヨーク板７の一部ｔコの字形に切り込みｔ入ねた
後忙折り曲げて形成した折曲部で、この折曲部１轟に磁
気検出素子４を固着させる。折Ｐ部１ａは磁性材料より
形成されているので、永久磁石３の磁界を引きつけ磁気
検出素子４付近の磁界を強めている。FIG. 1 is a perspective view showing an embodiment of the present invention. In this figure, the same reference numerals as in FIG. 2 indicate the same parts, and 7a
is a bent portion formed by cutting a portion of the yoke plate 7 into a U-shape and then bending it, and the magnetic detection element 4 is fixed to this bent portion 1. Since the folded P portion 1a is made of a magnetic material, it attracts the magnetic field of the permanent magnet 3 and strengthens the magnetic field near the magnetic detection element 4.

電動機の動作については、第２図の従来例と同一のため
省略する。The operation of the electric motor is the same as that of the conventional example shown in FIG. 2, so a description thereof will be omitted.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、磁性材料からなるヨー
ク板の−ｆ［’折り曲げズ折曲部を形成し。As explained above, the present invention forms the -f[' bent portion of the yoke plate made of a magnetic material.

この折曲部に磁気検出素子を固着したので、従来から使
用していた取付部品およびねじが不要となり、Ｓ品点数
の削減２組立工数の削減、さらにコストが低減できるな
どの効果がある。また、折曲部が磁性材料であるので磁
気検出素子に作用する磁界が強められて、磁気検出素子
の出力が大きくなり取り扱い易くなるとともに、ｌ米に
比べて出力の小さな磁気検出素子を使用することもでき
るという効果がある。Since the magnetic detection element is fixed to this bent part, the mounting parts and screws that have been used in the past are no longer necessary, and there are effects such as a reduction in the number of S parts, a reduction in assembly man-hours, and further cost reduction. In addition, since the bent part is made of magnetic material, the magnetic field acting on the magnetic detection element is strengthened, increasing the output of the magnetic detection element and making it easier to handle. It has the effect of being able to do the following.

【図面の簡単な説明】[Brief explanation of the drawing]

＃Ｉ１図はこの発明の一実施例を示す斜視図、第２図は
従来の電動機の一例を示す斜視図である。 図において、１は回転子、３は永久磁石、４は磁気検出
素子、７はヨーク板、７ａは折曲部である。 なお、各図中同一符号は同一または相当部分を示す。FIG. #I1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of a conventional electric motor. In the figure, 1 is a rotor, 3 is a permanent magnet, 4 is a magnetic detection element, 7 is a yoke plate, and 7a is a bent portion. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 回転子に固着させた永久磁石と、前記永久磁石の磁界を
検知するための磁気検出素子と、磁性材料からなるヨー
ク板とを備えた電動機において、前記ヨーク板の一部を
折り曲げて折曲部を形成し、この折曲部に前記磁気検出
素子を固着させたことを特徴とする電動機。In an electric motor including a permanent magnet fixed to a rotor, a magnetic detection element for detecting the magnetic field of the permanent magnet, and a yoke plate made of a magnetic material, a part of the yoke plate is bent to form a bent portion. 1. An electric motor characterized in that the magnetic detection element is fixed to the bent portion.
JP59270164A 1984-12-21 1984-12-21 Motor Pending JPS61147749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59270164A JPS61147749A (en) 1984-12-21 1984-12-21 Motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59270164A JPS61147749A (en) 1984-12-21 1984-12-21 Motor

Publications (1)

Publication Number Publication Date
JPS61147749A true JPS61147749A (en) 1986-07-05

Family

ID=17482424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59270164A Pending JPS61147749A (en) 1984-12-21 1984-12-21 Motor

Country Status (1)

Country Link
JP (1) JPS61147749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088185A (en) * 2010-10-20 2012-05-10 Nissan Motor Co Ltd Magnetic detection device, and magnetostriction force sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012088185A (en) * 2010-10-20 2012-05-10 Nissan Motor Co Ltd Magnetic detection device, and magnetostriction force sensor

Similar Documents

Publication Publication Date Title
JPS5953503B2 (en) rotation detection device
JP2854519B2 (en) Brushless motor
EP0548059A3 (en) Brushless motors
DE3683886D1 (en) CONTROL SWITCHES FOR BRUSHLESS MOTORS.
JPS61147749A (en) Motor
KR970004242A (en) Breathless DC Motor
JP2001208565A (en) Detection method for absolute position of motor shaft
JP3333538B2 (en) Brushless motor
JPS6227621B2 (en)
GB1420030A (en) Selectively reversible step motor
JPH01308153A (en) Brushless motor
JPS5658770A (en) Rotor for brushless motor
JPS5844375Y2 (en) Motor rotation speed detection device
JPS63148116A (en) Rotary encoder
JP2540836Y2 (en) Motor with encoder
JPS61295852A (en) Rotating phase detector of dc motor
KR890000905Y1 (en) Brushless motors
JPH06323806A (en) Positional detector
JPS6235358B2 (en)
JPS6268057A (en) Commutatorless motor
JPS6367141B2 (en)
JPS60152298A (en) Rotation detector of step motor
JPS6332030B2 (en)
JPS602622B2 (en) speed generator
JPS60210151A (en) Magnet rotary type motor