JPS6168681U - - Google Patents

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Publication number
JPS6168681U
JPS6168681U JP15311084U JP15311084U JPS6168681U JP S6168681 U JPS6168681 U JP S6168681U JP 15311084 U JP15311084 U JP 15311084U JP 15311084 U JP15311084 U JP 15311084U JP S6168681 U JPS6168681 U JP S6168681U
Authority
JP
Japan
Prior art keywords
magnet
drive
ring
shaped
brushless motor
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.)
Granted
Application number
JP15311084U
Other languages
Japanese (ja)
Other versions
JPH066708Y2 (en
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 filed Critical
Priority to JP1984153110U priority Critical patent/JPH066708Y2/en
Publication of JPS6168681U publication Critical patent/JPS6168681U/ja
Application granted granted Critical
Publication of JPH066708Y2 publication Critical patent/JPH066708Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Brushless Motors (AREA)

Description

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

第１図ａは本考案によるＤＣブラシレスモータ
の断面図、第１図ｂは第１図ａに示す駆動用マグ
ネツトと回転位置検出用マグネツトの着磁状態を
示すための平面図、第１図ｃは第１図ａに示す回
転速度制御用コイルのパターンを示すための図、
第２図ａは従来のＤＣブラシレスモータの断面図
、第２図ｂは第２図ａに示す駆動コイルとロータ
マグネツトの着磁状態を示す平面図、第２図ｃは
回転速度検出用コイルのパターンを示す図である
。 １…回転軸、２，１２…ロータヨーク、３…ロ
ータマグネツト、４，１８…ロータ部、５…プリ
ント基板、６…コイルパターン、７，１６…駆動
コイル、８，１５…ステータヨーク、９，１０，
１１…ホール素子、１３…駆動マグネツト、１４
…回転位置検出用マグネツト、１７…ホール素子
、１９…回転速度制御用コイル。 Fig. 1a is a sectional view of the DC brushless motor according to the present invention, Fig. 1b is a plan view showing the magnetized state of the driving magnet and rotational position detection magnet shown in Fig. 1a, and Fig. 1c. is a diagram showing the pattern of the rotational speed control coil shown in FIG. 1a,
Figure 2a is a sectional view of a conventional DC brushless motor, Figure 2b is a plan view showing the magnetized state of the drive coil and rotor magnet shown in Figure 2a, and Figure 2c is a rotational speed detection coil. FIG. DESCRIPTION OF SYMBOLS 1... Rotating shaft, 2, 12... Rotor yoke, 3... Rotor magnet, 4, 18... Rotor part, 5... Printed circuit board, 6... Coil pattern, 7, 16... Drive coil, 8, 15... Stator yoke, 9, 10,
11... Hall element, 13... Drive magnet, 14
...Magnet for detecting rotational position, 17...Hall element, 19... Coil for controlling rotational speed.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸方向に着磁されたリング状の多極磁石を駆動
用マグネツトとして有するロータ部と、該駆動用
マグネツトに対向するように駆動制御コイルを有
するとともに回転位置検出用の磁気センサを備え
たステータ部とを有するＤＣブラシレスモータに
おいて、前記ロータ部は前記駆動用マグネツトと
して比較的小径のリング状マグネツトを用いると
ともに、該駆動用マグネツトと同心でかつその外
側に比較的大径でかつ軸方向に着磁されたリング
状多極磁石を位置検出用マグネツトとして設け、
前記ステータ部には前記駆動用マグネツトに対向
する駆動制御コイルの外側で前記位置検出用マグ
ネツトに対向する位置に前記磁気センサを配置し
たことを特徴とするＤＣブラシレスモータ。 A rotor section having a ring-shaped multipolar magnet magnetized in the axial direction as a drive magnet, and a stator section having a drive control coil facing the drive magnet and a magnetic sensor for detecting rotational position. In the DC brushless motor, the rotor part uses a ring-shaped magnet with a relatively small diameter as the drive magnet, and a magnet with a relatively large diameter and magnetized in the axial direction concentrically with the drive magnet and on the outside thereof. A ring-shaped multipolar magnet is provided as a position detection magnet,
A DC brushless motor characterized in that the magnetic sensor is disposed in the stator portion at a position facing the position detection magnet outside the drive control coil facing the drive magnet.
JP1984153110U 1984-10-12 1984-10-12 DC brushless motor Expired - Lifetime JPH066708Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984153110U JPH066708Y2 (en) 1984-10-12 1984-10-12 DC brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984153110U JPH066708Y2 (en) 1984-10-12 1984-10-12 DC brushless motor

Publications (2)

Publication Number Publication Date
JPS6168681U true JPS6168681U (en) 1986-05-10
JPH066708Y2 JPH066708Y2 (en) 1994-02-16

Family

ID=30711146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984153110U Expired - Lifetime JPH066708Y2 (en) 1984-10-12 1984-10-12 DC brushless motor

Country Status (1)

Country Link
JP (1) JPH066708Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6434161A (en) * 1987-07-30 1989-02-03 Sony Corp Motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56117570A (en) * 1980-02-21 1981-09-16 Sony Corp Brushless direct current motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56117570A (en) * 1980-02-21 1981-09-16 Sony Corp Brushless direct current motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6434161A (en) * 1987-07-30 1989-02-03 Sony Corp Motor

Also Published As

Publication number Publication date
JPH066708Y2 (en) 1994-02-16

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