JP2001060511A - Self holding type rotary solenoid - Google Patents

Self holding type rotary solenoid

Info

Publication number
JP2001060511A
JP2001060511A JP11233548A JP23354899A JP2001060511A JP 2001060511 A JP2001060511 A JP 2001060511A JP 11233548 A JP11233548 A JP 11233548A JP 23354899 A JP23354899 A JP 23354899A JP 2001060511 A JP2001060511 A JP 2001060511A
Authority
JP
Japan
Prior art keywords
coil
shaft
iron core
plate
permanent magnet
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
JP11233548A
Other languages
Japanese (ja)
Inventor
Toru Sano
徹 佐野
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.)
Shindengen Electric Manufacturing Co Ltd
Original Assignee
Shindengen Electric Manufacturing Co Ltd
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 Shindengen Electric Manufacturing Co Ltd filed Critical Shindengen Electric Manufacturing Co Ltd
Priority to JP11233548A priority Critical patent/JP2001060511A/en
Publication of JP2001060511A publication Critical patent/JP2001060511A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromagnets (AREA)

Abstract

PROBLEM TO BE SOLVED: To lower power consumption by arranging a permanent magnet to a fixed core to make the permanent magnet hold a moving core, even if energization is canceled. SOLUTION: A moving core 2 is attracted to a fixed core 1 with a coil 5 supplied by power and excited. However, since a plate 3 is supported by a plurality of balls 7 and the balls are rotating down from an upper part to a lower part of an inclined groove formed in a case 6, the plate 3 rotates downward to the bottom of the inclined groove. With the rotation, a shaft 4 rotates by a specific angle. The rotation angle is determined by the length of the inclined groove. Even if energization of the the coil 5 is canceled, magnetic force by a permanent magnet 9 stronger than torque by a spring 8 can hold the angle position of the rotated shaft 4. To put the shaft 4 back to the original rotational position before the power supply, power supply to the coil 5 is made reverse to the locked state to offset magnetic force in a magnetic circuit to make generated torque near to zero.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する分野】本発明はアクチュエータのロータ
リソレノイドの構造、及び消費電力削減に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a rotary solenoid of an actuator and a reduction in power consumption.

【0002】[0002]

【従来の技術】図2は従来のロータリソレノイドの断面
図である。図2において1は固定鉄芯、2は可動鉄芯、
3はプレート、4はシャフト、5はコイル、6はケー
ス、7はボール、8はバネである。次にこれの動作につ
いて説明する。コイル5に通電を行うと励磁状態とな
り、可動鉄芯2が固定鉄芯1に吸引される。この時、プ
レート3は複数個のボール7で支えられているため、ボ
ール7がケース6に施された傾斜のある溝(ボールレー
ス溝)の高部から低部へ転がっていくに従って、プレー
ト3は回転しながらボールレース溝の最下部まで下って
行く。それに伴い、シャフト4は一定の角度を回転す
る。回転角度はボールレース溝の長さで決定される。シ
ャフト4を回転後の角度に持続して位置させるには、バ
ネ8の弾性作用を上回る吸引力をコイル5に発生させる
ために、通電をし続ける必要がある。コイル5への通電
を切れば、バネ8の弾性作用によりプレート3、および
ボール7はそれぞれ消磁状態の元の位置に戻る。回転ト
ルクがシャフト4に発生されることで、シャフト4は一
定の確度を回転する動作を得ている。
2. Description of the Related Art FIG. 2 is a sectional view of a conventional rotary solenoid. In FIG. 2, 1 is a fixed iron core, 2 is a movable iron core,
3 is a plate, 4 is a shaft, 5 is a coil, 6 is a case, 7 is a ball, and 8 is a spring. Next, the operation thereof will be described. When the coil 5 is energized, the coil 5 is excited, and the movable iron core 2 is attracted to the fixed iron core 1. At this time, since the plate 3 is supported by the plurality of balls 7, as the balls 7 roll from the high part to the low part of the inclined groove (ball race groove) formed in the case 6, the plate 3 Goes down to the bottom of the ball race groove while rotating. Accordingly, the shaft 4 rotates by a certain angle. The rotation angle is determined by the length of the ball race groove. In order to continuously position the shaft 4 at the angle after rotation, it is necessary to keep energizing the coil 5 in order to generate a suction force exceeding the elastic action of the spring 8 in the coil 5. When the power to the coil 5 is turned off, the plate 3 and the ball 7 return to their original positions in the demagnetized state by the elastic action of the spring 8. Since the rotation torque is generated on the shaft 4, the shaft 4 obtains an operation of rotating with a certain accuracy.

【0003】しかし、上述のロータリソレノイドはシャ
フト4を回転後の角度の位置に保持させるために、連続
した通電が必要になり電力の消費量が大きかった。
However, the above-described rotary solenoid requires continuous energization in order to hold the shaft 4 at a position at an angle after rotation, and consumes a large amount of power.

【発明が解決しようとする課題】[Problems to be solved by the invention]

【0004】請求項1の発明は、シャフトを回転後の角
度の位置に保持させるにあたって通電を必要とせず、シ
ャフトを回転させる際にのみ電力を必要とし、電力の消
費を低減することを目的としたロータリソレノイドを提
供するものである。請求項2の発明はコイルに通常時と
は逆の通電を行うことにより、シャフトをコイルに通電
を行う前の位置に戻す作用を所持させたものである。
An object of the present invention is to reduce power consumption by requiring only power when rotating the shaft without energizing the shaft to maintain the shaft at the angular position after rotation. A rotary solenoid is provided. The invention according to claim 2 has an effect of returning the shaft to a position before energizing the coil by energizing the coil in a direction opposite to the normal energization.

【0005】[0005]

【実施の形態】以下、この発明の実施の形態を図面に基
づいて説明する。図1は本発明の実施例の断面図であ
る。図1において、1は固定鉄芯、2は可動鉄芯、3は
プレート、4はシャフト、5はコイル、6はケース、7
はボール、8はバネ、9は永久磁石である。次にこれの
動作について説明する。コイル5に通電を行うと励磁状
態となり、可動鉄芯2が固定鉄芯1に吸引される。しか
し、プレート3は複数個のボール7で支えられているた
め、ボール7がケース6に施された傾斜のある溝の高部
から低部へ転がっていくに従って、プレート3は回転し
ながら傾斜のある溝の最下部まで下って行く。(ロック
状態)それに伴い、シャフト4は一定の角度を回転す
る。回転角度は傾斜のある溝の長さで決定される。コイ
ル5への通電を解除しても、永久磁石9により働く磁力
がバネ8のトルクを上回っているので、シャフト4を回
転後の角度に持続して位置させることが出来る。シャフ
ト4を通電前の回転位置に戻すには、永久磁石9により
発生する励磁力による磁気回路W1とほぼ同等の反作用
の磁気回路W2を起こす為にコイル5にロック時とは逆
の通電を行い、磁気回路中の励磁力を相反させ、発生ト
ルクを零に近づける。従って、バネ8によるトルクのみ
がシャフト4に作用し消磁状態の位置に戻すことができ
る。(アンロック状態)以上説明したように、可動鉄芯
1を固定鉄芯1にロックするとき、及びアンロックする
ときの極短時間にのみ、コイル5に所望方向に通電すれ
ば良く、それ以外には通電を続ける必要がないため、本
構造は消費電力を低減することができる。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the present invention. In FIG. 1, 1 is a fixed iron core, 2 is a movable iron core, 3 is a plate, 4 is a shaft, 5 is a coil, 6 is a case, 7
Is a ball, 8 is a spring, and 9 is a permanent magnet. Next, the operation thereof will be described. When the coil 5 is energized, the coil 5 is excited, and the movable iron core 2 is attracted to the fixed iron core 1. However, since the plate 3 is supported by a plurality of balls 7, the plate 3 rotates and rotates as the ball 7 rolls from the high part to the low part of the inclined groove formed in the case 6. Go down to the bottom of a groove. (Locked state) Accordingly, the shaft 4 rotates by a certain angle. The rotation angle is determined by the length of the inclined groove. Even if the energization of the coil 5 is canceled, the magnetic force exerted by the permanent magnet 9 exceeds the torque of the spring 8, so that the shaft 4 can be continuously positioned at the angle after rotation. In order to return the shaft 4 to the rotational position before energization, the coil 5 is energized in the opposite direction to when the coil 5 is locked in order to generate a magnetic circuit W2 having substantially the same reaction as the magnetic circuit W1 due to the exciting force generated by the permanent magnet 9. In this way, the exciting force in the magnetic circuit is reversed, and the generated torque is brought close to zero. Therefore, only the torque by the spring 8 acts on the shaft 4 to return the shaft 4 to the demagnetized state. (Unlocked state) As described above, the coil 5 may be energized in a desired direction only for a very short time when the movable iron core 1 is locked to the fixed iron core 1 and when the movable iron core 1 is unlocked. This structure can reduce power consumption because it is not necessary to continue energization.

【0006】[0006]

【発明の効果】本発明の効果としては、永久磁石により
構成される励磁力の吸引作用により、ごく短時間しかコ
イルに通電する必要がないので、ロータリソレノイドの
消費電力を低減することができ、産業上の利用可能性大
なるものである。
The effect of the present invention is that the power consumption of the rotary solenoid can be reduced because the coil need not be energized for a very short time due to the attraction of the exciting force constituted by the permanent magnet. It has great industrial applicability.

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

【図1】本発明のロータリソレノイドの断面図。FIG. 1 is a sectional view of a rotary solenoid according to the present invention.

【図2】従来のロータリソレノイドの断面図。FIG. 2 is a sectional view of a conventional rotary solenoid.

【符号の簡単な説明】[Brief description of reference numerals]

1.固定鉄芯 2.可動鉄芯 3.プレート 4.シャフト 5.コイル 6.ケース 7.ボール 8.バネ 9.永久磁石 1. Fixed iron core 2. Movable iron core 3. Plate 4. Shaft 5. Coil 6. Case 7. Ball 8. Spring 9. permanent magnet

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ケースに固定鉄芯、それに対抗して配置
された可動鉄芯、前記可動鉄芯に接続されボールレース
溝を有するプレート、前記ボールレース溝と前記ケース
に施されたボールレース溝の間に介在する複数個のボー
ル、前記プレートに接続されたシャフト及びコイルを内
蔵し、コイルに通電を行うとボールがボールレース溝の
高部から低部に転がる動作に伴いプレートが回転しなが
ら固定鉄芯に吸引され、通電を解除すると復帰バネの力
で前記プレート及び前記シャフトを元の位置に戻すロー
タリソレノイドにおいて、前記固定鉄芯には永久磁石が
配置され、通電を解除しても、前記永久磁石による励磁
力で可動鉄芯を保持することを特徴とした自己保持型ロ
ータリソレノイド。
1. A fixed iron core in a case, a movable iron core arranged opposite thereto, a plate connected to the movable iron core and having a ball race groove, and a ball race groove provided in the ball race groove and the case. A plurality of balls, a shaft and a coil connected to the plate are interposed between the plates, and when the coil is energized, the plate rotates while the ball rolls from a high portion to a low portion of the ball race groove. In the rotary solenoid which is attracted to the fixed iron core and returns the plate and the shaft to the original position by the force of the return spring when the energization is released, a permanent magnet is arranged on the fixed iron core, and even if the energization is released, A self-holding rotary solenoid, wherein the movable iron core is held by an exciting force of the permanent magnet.
【請求項2】コイルに通常時と逆方向に通電を行うこと
により、シャフトをコイルに通電を行う前の位置に戻す
ことを特徴とした請求項1記載の自己保持型ロータリソ
レノイド。
2. The self-holding rotary solenoid according to claim 1, wherein the shaft is returned to a position before energizing the coil by energizing the coil in a direction opposite to a normal direction.
JP11233548A 1999-08-20 1999-08-20 Self holding type rotary solenoid Pending JP2001060511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11233548A JP2001060511A (en) 1999-08-20 1999-08-20 Self holding type rotary solenoid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11233548A JP2001060511A (en) 1999-08-20 1999-08-20 Self holding type rotary solenoid

Publications (1)

Publication Number Publication Date
JP2001060511A true JP2001060511A (en) 2001-03-06

Family

ID=16956796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11233548A Pending JP2001060511A (en) 1999-08-20 1999-08-20 Self holding type rotary solenoid

Country Status (1)

Country Link
JP (1) JP2001060511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110111971A (en) * 2019-06-14 2019-08-09 哈尔滨工业大学 The stable two-way Self-retaining electromagnet in position is realized based on spring pressure and magnetic attraction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110111971A (en) * 2019-06-14 2019-08-09 哈尔滨工业大学 The stable two-way Self-retaining electromagnet in position is realized based on spring pressure and magnetic attraction
CN110111971B (en) * 2019-06-14 2021-10-15 哈尔滨工业大学 Bidirectional self-holding electromagnet capable of realizing position stability based on spring pressure and magnetic attraction force

Similar Documents

Publication Publication Date Title
US7839041B2 (en) Rotary actuators
JPH01256083A (en) Locking mechanism
JP2001060511A (en) Self holding type rotary solenoid
US4870335A (en) Rotary actuator
JPH08324951A (en) Lifting magnet
JP3415275B2 (en) Electromagnetic actuator
JP3641346B2 (en) Self-holding rotary solenoid
JP2008021599A (en) Rotating type-operation device, and switch
JP3748965B2 (en) Movable magnet type rotary actuator
JPH10243625A (en) Rotator using permanent magnet
JP2754296B2 (en) Rotary actuator
JPH07240311A (en) Rotary solenoid
JPS602064A (en) Rotary actuator
JPH0681479B2 (en) Rotary actuator
JPH0617175Y2 (en) Magnetic reversal display
JP3897043B2 (en) Magnetic rotating device
JPH0511585Y2 (en)
JP2543451Y2 (en) Driving circuit for solenoid and solenoid valve using the same
JPH0912259A (en) Lifting device
JP2887024B2 (en) Radial magnetic bearing
JPS6225316Y2 (en)
JPH0971383A (en) Lifting gear
JPH08245155A (en) Lifting gar
JP2003017315A (en) Rotary solenoid
JP2001034204A (en) Rotary display device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060201

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081107

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081111

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090310