EP0179911A1 - Elektromagnetisches betätigungsgerät - Google Patents
Elektromagnetisches betätigungsgerät Download PDFInfo
- Publication number
- EP0179911A1 EP0179911A1 EP84901014A EP84901014A EP0179911A1 EP 0179911 A1 EP0179911 A1 EP 0179911A1 EP 84901014 A EP84901014 A EP 84901014A EP 84901014 A EP84901014 A EP 84901014A EP 0179911 A1 EP0179911 A1 EP 0179911A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- permanent magnet
- magnetic
- movable element
- magnetic circuit
- space
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1638—Armatures not entering the winding
- H01F7/1646—Armatures or stationary parts of magnetic circuit having permanent magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
- H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
Definitions
- the present invention relates to a device which actuates a binary mechanical displacement or holding by electric power in a monostable or bistable manner. More particularly, the present invention relates to an electromagnetic actuator which electromagnetically actuates a binary displacement of mechanical operated device such as a valve rod, piston, movable element of switch, locking means, or the like in accordance with a minute electric current in a pulse series.
- a holding magnet type electromagnetic actuator has been well known for applying mechanical force to a valve rod, piston or the like.
- this holding magnet type electromagnetic actuator which comprises a permanent magnet 2, and a pair of cores la and lb which are respectively wound round with solenoid coils 3a and 3b.
- These permanent magnet 2 , cores la,lb and the solenoid coils 3a and 3b are so arranged as to form a magnetic circuit wherein magnetomotive forces of the electromagnet and the permanent magnet are arranged in series; that is, the magnetomotive force of the solenoid coiles 3a and 3b is generated in the couter direction of the coercive force of the permanent magnet 2 when an electric current is flowed through the solenoid coils 3a and 3b.
- a contact element 4 can be reversibly held in either states shown in Fig. l(a) or Fig. l(b).
- this holding type electromagnet has a self- holding capability for the contact element 4 during an electric current is not flowed, it has essentially following demerits.
- the electromagnetic actuator according to the present invention mainly comprises a magnetic circuit containing a combination of stationary element and movable element, wherein a permanent magnet is so arranged that the magnetomotive force of the permanent magnet is inserted in parallel to the magnetomotive force of electromagnet in the magnetic circuit so as to actuate under either monostable or bistable condition.
- the present invention can provide the electromagnetic actuator having a simple and hardy structure and capable of operating with high sensitivity and at high speed.
- Fig. l(a) and (b) are schematic illustrations showing a conventional electromagnetic actuator
- Fig. 2(a) and (b) are schematic illustrations showing a first embodiment of the present invention
- Fig. 3(a) and (b) are schematic illustrations showing a second embodiment of the present invention
- Fig. 4(a) and (b) are schematic illustrations of a third embodiment of the present invention
- Fig. 5(a) and (b) are schematic illustrations showing a fourth embodiment of the present invention.
- Fig. 2(a) and (b) show a first embodiment of the present invention, wherein the electromagnetic actuator comprises a stationary element 12 as a magnetic circuit having a space energized by a coil 11; a movable element 14 made of a magnetic material which is inserted between a pole faces 12a and 12b of the stationary element 12 through a first gap 13, the movable element 14 can be mechanically moved in the direction represented by the arrow 14a or 14b met with both the pole faces 12a and 12b at right angle; and a permanent magnet 16 fixed to a yoke 17 of the stationary element 12, the pole faces of the same polarity of the permanent magnet 16 are faced to the side surface of the movable element 14 through a fine second gap 15.
- the electromagnetic actuator comprises a stationary element 12 as a magnetic circuit having a space energized by a coil 11; a movable element 14 made of a magnetic material which is inserted between a pole faces 12a and 12b of the stationary element 12 through a first gap 13, the movable element 14
- Fig. 3(a) and (b) show a second embodiment of the present invention, wherein a permanent magnet 16 is so fixed onto the side surface of a movable element 14 as to form a fine second gap 15 between a yoke 17 and the permanent magnet 16.
- Fig. 4 shows a third embodiment of the present invention, wherein a movable element 14 capable of mechanically moving in the direction met to both pole faces 12a and 12b of a stationary element 12 at right angle is inserted between a space energized by a coil 11 and pole faces 12a and 12b through a first gap 13, a permanent magnet 16 is connected to the stationary element 12 in series, and contact elements 37 is fixedly connected to both pole faces of the permanent magnet 16 so as to face to the side surfaces of the movable element 14 met to the pole face 12b at right angle through a second gap 15.
- Fig. 5 shows a fourth embodiment of the present invention wherein a pair of magnetic pole segments 45, 45 is arranged at both sides of a movable element 46 instead of the permanent magnet 16 in the third embodiment shown in Fig. 4. An operation of this embodiment will be conducted in the same manner as the above embodiment shown in Fig. 4.
- the actuator may be also carried out in a monostable operation by employing a mechanical bias force or magnetic bias force; for example by means of a spring, which is a predetermined value smaller than the attractive force of the permanent magnet and applied in the counter direction of the permanent magnet so as to overlap the bias force with the relative movement between the stationary element and the movable element.
- the embodiment according to the present invention is so designed as to reduce the ampereturn of the coil as possible which supplies operation energy, the insertion of the powerful permanent magnet can result in the following extermely superior effects.
- the magnetic flux of energizing current and that of the permanent magnet always act each other in only the inside of the soft magnetic material and thus the magnetomotive force caused by flowing an electric current through the coil does not directly act with that of the permanent magnet having a great coercive force as different from the conventional device shown in Fig. 1. Therefore, it is possible to reduce extremely the required ampere turn for energizing so that two different operation parameters for mechanical strength and mechanical position can be controlled by a minute electric current in a pulse series.
- the movable element applied with the attractive force of 500 g could be moved in the reverse direction for a stroke of 2 mm with a thrust of 1 kg by supplying the extremely minute operation energy such as an electric current of 6V, 0.5A in a pulse series of several ten m / sec.
- the extremely minute operation energy such as an electric current of 6V, 0.5A in a pulse series of several ten m / sec.
- conventionally used device requires a three wires type for a control cable in additin to the operation electric power of about 30W for a stroke of 2 mm with a thrust of 1 kg.
- the embodiment of the present invention can be achieved by using a coil which can be operated by a two-wires type control cable while the conventional device shown in Fig. 1 requires two coils and a three-wires type control cable.
- the present invention can provide a compact, light and low cost device.
- the device according to the present invention can be operated by a minute electric current in a pulse series so that it is possible to reduce the cost of wiring equipments for a long distance remote operation.
- the device according to the present invention can be operated by a small energy such as a low voltage and a miniute current, it is possible to use this device for an essential safety and exploding prevention device in factory or mine, and to use a solar cell as an operation power source of this device.
- the present invention can be effectively utilized for an electromagnetic valve, electromagnetic piston, electromagnetic locking device, switch operating mechanism, essential safety and exploding prevention device, abnormal retracting mechanism, or various industry and private usage.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1984/000084 WO1985004044A1 (en) | 1984-03-05 | 1984-03-05 | Electromagnetic actuator apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0179911A1 true EP0179911A1 (de) | 1986-05-07 |
EP0179911A4 EP0179911A4 (de) | 1986-07-23 |
EP0179911B1 EP0179911B1 (de) | 1989-06-07 |
Family
ID=13818258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840901014 Expired EP0179911B1 (de) | 1984-03-05 | 1984-03-05 | Elektromagnetisches betätigungsgerät |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0179911B1 (de) |
AU (1) | AU569879B2 (de) |
DE (1) | DE3490674T1 (de) |
GB (1) | GB2165096B (de) |
WO (1) | WO1985004044A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225388A1 (de) * | 1985-06-04 | 1987-06-16 | Mitsubishi Mining & Cement Co., Ltd. | Elektromagnetischer betätiger |
FR2606927A1 (fr) * | 1986-11-19 | 1988-05-20 | Telemecanique Electrique | Electro-aimant polarise bistable |
DE4108601A1 (de) * | 1991-03-18 | 1992-09-24 | Harting Elektronik Gmbh | Fang- und haltemagnet |
FR2828000A1 (fr) * | 2001-07-27 | 2003-01-31 | Commissariat Energie Atomique | Actionneur magnetique a aimant mobile |
WO2004073139A2 (en) | 2003-02-12 | 2004-08-26 | Moog Inc. | Torque motor |
GB2429032A (en) * | 2005-08-02 | 2007-02-14 | Paxton Access Ltd | Electromagnetic lock actuator and mechanism |
US8179217B2 (en) * | 2008-06-30 | 2012-05-15 | Omron Corporation | Electromagnet device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60261111A (ja) * | 1984-06-08 | 1985-12-24 | Mitsubishi Mining & Cement Co Ltd | 電磁アクチユエ−タ |
DE8900779U1 (de) * | 1989-01-25 | 1989-05-11 | Walloschke, Rudolf, 4972 Loehne | Impuls-Hubmagnet |
GB2342504B (en) * | 1998-10-08 | 2003-04-23 | Wladyslaw Wygnanski | Magnetic drives |
ATE274162T1 (de) * | 1998-10-08 | 2004-09-15 | Camcon | Magnetantrieb |
CA2270785C (en) * | 1999-05-04 | 2005-08-16 | Chih-Sheng Sheng | Magnet device with double fixing positions for changing the magnetic circuit |
DE102013208768A1 (de) * | 2013-05-13 | 2014-11-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Elektromagnetischer Aktuator, aktuatorisch bewegbares System enthaltend mehrere solcher Aktuatoren sowie aktuatorisches Bewegungsverfahren |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB958501A (en) * | 1959-07-03 | 1964-05-21 | Philips Electrical Ind Ltd | Improvements in electromagnetic devices in which a body is moved between two stable end positions |
US3772540A (en) * | 1972-07-19 | 1973-11-13 | New Process Ind Inc | Electromechanical latching actuator |
US3859547A (en) * | 1971-12-23 | 1975-01-07 | Philip E Massie | Multi-position solenoid with latching or nonlatching capability |
GB1466555A (en) * | 1975-08-27 | 1977-03-09 | Itt Creed | Electromagnetic stylus actuator for a stylus printer |
US4157520A (en) * | 1975-11-04 | 1979-06-05 | Westinghouse Electric Corp. | Magnetic flux shifting ground fault trip indicator |
JPS58157104A (ja) * | 1982-03-12 | 1983-09-19 | Matsushita Electric Works Ltd | 有極電磁石 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1047848A (en) * | 1962-08-09 | 1966-11-09 | H E & B S Benson Ltd | Improvements in d.c. electromagnets with permanentmagnet armatures |
DE2033378B2 (de) * | 1970-07-06 | 1976-08-05 | Anker-Werke Ag, 4800 Bielefeld | Elektromagnetischer antrieb zur datenaufzeichnung |
DE2503159C3 (de) * | 1975-01-27 | 1981-05-07 | Siemens AG, 1000 Berlin und 8000 München | Polarisiertes elektromagnetisches Relais und Verfahren zu dessen Herstellung |
DE2550134A1 (de) * | 1975-11-07 | 1977-05-18 | Standard Elektrik Lorenz Ag | Elektromagnetisches relais |
DE2816555A1 (de) * | 1977-04-18 | 1978-10-19 | Francaise App Elect Mesure | Magnetkreisanordnung fuer einen elektromagneten fuer einen mit einem permanentmagneten als anker |
JPS56168315A (en) * | 1980-05-30 | 1981-12-24 | Matsushita Electric Works Ltd | Polarized magnetic circuit configuration |
JPS5889059A (ja) * | 1981-11-16 | 1983-05-27 | ム−グ・インコ−ポレ−テツド | 電気機械式アクチユエ−タ |
JPS5913307A (ja) * | 1982-07-14 | 1984-01-24 | Matsushita Electric Works Ltd | 薄型有極ソレノイド |
JPS5918411U (ja) * | 1982-07-23 | 1984-02-04 | オムロン株式会社 | 有極電磁石装置 |
AU2579284A (en) * | 1983-04-15 | 1984-11-07 | Mitsubishi Mining & Cement Co., Ltd. | Electromagnetic actuator apparatus |
-
1984
- 1984-03-05 WO PCT/JP1984/000084 patent/WO1985004044A1/ja active IP Right Grant
- 1984-03-05 AU AU26503/84A patent/AU569879B2/en not_active Ceased
- 1984-03-05 GB GB08523400A patent/GB2165096B/en not_active Expired
- 1984-03-05 EP EP19840901014 patent/EP0179911B1/de not_active Expired
- 1984-03-05 DE DE19843490674 patent/DE3490674T1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB958501A (en) * | 1959-07-03 | 1964-05-21 | Philips Electrical Ind Ltd | Improvements in electromagnetic devices in which a body is moved between two stable end positions |
US3859547A (en) * | 1971-12-23 | 1975-01-07 | Philip E Massie | Multi-position solenoid with latching or nonlatching capability |
US3772540A (en) * | 1972-07-19 | 1973-11-13 | New Process Ind Inc | Electromechanical latching actuator |
GB1466555A (en) * | 1975-08-27 | 1977-03-09 | Itt Creed | Electromagnetic stylus actuator for a stylus printer |
US4157520A (en) * | 1975-11-04 | 1979-06-05 | Westinghouse Electric Corp. | Magnetic flux shifting ground fault trip indicator |
JPS58157104A (ja) * | 1982-03-12 | 1983-09-19 | Matsushita Electric Works Ltd | 有極電磁石 |
Non-Patent Citations (2)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 276 (E-215)[1421],9th December 1983; & JP - A - 58 157 104 (MATSUSHITA DENKO) * |
See also references of WO8504044A1 * |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0225388A1 (de) * | 1985-06-04 | 1987-06-16 | Mitsubishi Mining & Cement Co., Ltd. | Elektromagnetischer betätiger |
EP0225388A4 (de) * | 1985-06-04 | 1987-10-19 | Mitsubishi Mining & Cement Co | Elektromagnetischer betätiger. |
FR2606927A1 (fr) * | 1986-11-19 | 1988-05-20 | Telemecanique Electrique | Electro-aimant polarise bistable |
EP0272164A2 (de) * | 1986-11-19 | 1988-06-22 | Telemecanique | Bistabiler polarisierter Elektromagnet |
EP0272164A3 (en) * | 1986-11-19 | 1988-07-27 | La Telemecanique Electrique | Bistable-polarised electromagnet |
DE4108601A1 (de) * | 1991-03-18 | 1992-09-24 | Harting Elektronik Gmbh | Fang- und haltemagnet |
DE4108601C2 (de) * | 1991-03-18 | 1995-06-29 | Harting Elektronik Gmbh | Fang- und Haltemagnet |
WO2003012805A2 (fr) * | 2001-07-27 | 2003-02-13 | Commissariat A L'energie Atomique | Actionneur magnetique a aimant mobile |
FR2828000A1 (fr) * | 2001-07-27 | 2003-01-31 | Commissariat Energie Atomique | Actionneur magnetique a aimant mobile |
WO2003012805A3 (fr) * | 2001-07-27 | 2003-10-02 | Commissariat Energie Atomique | Actionneur magnetique a aimant mobile |
US7106159B2 (en) | 2001-07-27 | 2006-09-12 | Commissariat A L'energie Atomique | Mobile magnet actuator |
WO2004073139A2 (en) | 2003-02-12 | 2004-08-26 | Moog Inc. | Torque motor |
EP1593130A2 (de) * | 2003-02-12 | 2005-11-09 | Moog Inc. | Drehmomentmotor |
EP1593130A4 (de) * | 2003-02-12 | 2010-11-10 | Moog Inc | Drehmomentmotor |
GB2429032A (en) * | 2005-08-02 | 2007-02-14 | Paxton Access Ltd | Electromagnetic lock actuator and mechanism |
GB2429032B (en) * | 2005-08-02 | 2010-06-02 | Paxton Access Ltd | Lock mechanism |
US8179217B2 (en) * | 2008-06-30 | 2012-05-15 | Omron Corporation | Electromagnet device |
Also Published As
Publication number | Publication date |
---|---|
EP0179911A4 (de) | 1986-07-23 |
AU569879B2 (en) | 1988-02-25 |
WO1985004044A1 (en) | 1985-09-12 |
AU2650384A (en) | 1985-09-24 |
GB8523400D0 (en) | 1985-10-23 |
DE3490674T1 (de) | 1986-05-15 |
GB2165096A (en) | 1986-04-03 |
EP0179911B1 (de) | 1989-06-07 |
GB2165096B (en) | 1987-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4994776A (en) | Magnetic latching solenoid | |
US3460081A (en) | Electromagnetic actuator with permanent magnets | |
US3503022A (en) | Electromagnetic actuators | |
EP1513176B1 (de) | Lineare Schalterbetätigungsvorrichtung | |
US3146381A (en) | Magnetic force control or switching system | |
EP0179911A1 (de) | Elektromagnetisches betätigungsgerät | |
EP0198085B1 (de) | ELEKTROMAGNETISCHER Schalter | |
US4797645A (en) | Electromagnetic actuator | |
US4490701A (en) | Electromagnetic switchgear comprising a magnetic drive and a contact apparatus placed thereabove | |
EP0264619B1 (de) | Polarisierter Magnetantrieb für elektromagnetisches Schaltgerät | |
US4940958A (en) | Polarized electromagnetic apparatus | |
US5239277A (en) | Electromagnetic solenoid actuator | |
US4609899A (en) | Polarized electromagnet having three states and a control circuit for said electromagnet | |
EP0572155A1 (de) | Bistabiler magnetischer Betätiger | |
US4752757A (en) | Electromagnetic actuator | |
EP0361638A2 (de) | Mikrowellen-C- und -S-Schalter | |
GB1207758A (en) | Magnetodynamic actuator | |
US3271707A (en) | Electromagnetic relay of the bistable type | |
US4290356A (en) | Actuator mechanism for a print hammer or the like | |
JPH0236043B2 (de) | ||
JPH0117345B2 (de) | ||
KR900003288Y1 (ko) | 전자(電磁) 액츄에이터 | |
US6819207B2 (en) | Rotary electromagnet | |
US3363203A (en) | Bistable operating reed relay | |
GB2142188A (en) | Electrical relays |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19860207 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): FR |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19860723 |
|
17Q | First examination report despatched |
Effective date: 19870819 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): FR |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19951229 Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971128 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |