CN110767407B - Multistable electromagnetic operating mechanism - Google Patents
Multistable electromagnetic operating mechanism Download PDFInfo
- Publication number
- CN110767407B CN110767407B CN201910972423.2A CN201910972423A CN110767407B CN 110767407 B CN110767407 B CN 110767407B CN 201910972423 A CN201910972423 A CN 201910972423A CN 110767407 B CN110767407 B CN 110767407B
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- transposition
- shell
- permanent magnet
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- 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
- H01F7/081—Magnetic constructions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
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- 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
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- 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
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- 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
- H01F7/123—Guiding or setting position of armatures, e.g. retaining armatures in their end position by ancillary coil
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- 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
- H01F7/1607—Armatures entering the winding
- H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
Abstract
The invention discloses a multistable electromagnetic operating mechanism which comprises an axial driving rod, an axial driving shell, an axial driving coil, an axial driving permanent magnet, a transposition sliding groove shell, a permanent magnet sliding block, a transposition shifting fork, a transposition transverse connecting rod, a transposition vertical connecting rod, a transposition shell, a transposition driving rod, a guide shell, a transposition driving coil and a transposition permanent magnet. The invention has the beneficial effects that: 1) compared with a tristable electromagnetic operating mechanism with a spring, the invention greatly reduces the system oscillation and avoids the problem that the output terminal of the driving rod outputs an oscillation signal. 2) Compared with the traditional driving mode that the electromagnetic coil needs to be electrified for a long time, the electromagnetic coil only needs to be electrified during reversing to control, so that the energy consumption is reduced, the element temperature rise is controlled, the reliability is improved, and the service life is prolonged. 3) The invention realizes the function expansion from the tristable state to the multistable state, the maximum distance between each position is not limited, and the invention can be reliably switched and stabilized at each steady-state position.
Description
Technical Field
The invention relates to the technical field of electro-mechanical-hydraulic integrated control equipment, in particular to a multistable electromagnetic operating mechanism.
Background
The device which makes the output end stably stop and convert to each other at a plurality of node positions in the same axial direction in the form of electromagnetic drive is called a multistable electromagnetic operating mechanism. At present, relatively mature bistable and tristable permanent magnetic operating mechanisms are mostly applied to an Automatic Transfer Switching Equipment (ATSE) of a power system and an electromagnetic driving module of a liquid (gas) piezoelectric electromagnetic control valve. The existing bistable and tristable permanent magnetic operating mechanisms realize corresponding functions through the combined action of electromagnetic force and spring force, but can only realize the parking and mutual conversion of three steady states at most due to the inherent characteristics of the self structure, and the movement oscillation of the spring can cause the unreliability of the parking process.
Disclosure of Invention
The invention aims to provide a multistable electromagnetic operating mechanism which can accurately reach and be stabilized at a plurality of positions in the same axial direction, expands the number of stable states, improves the reliability and the precision of conversion between the stable states, enhances the adaptability of the device, enables the operating requirements to be met under different stroke requirements, and has an important propulsion effect on electromechanical-hydraulic integrated control equipment.
The technical scheme for realizing the purpose of the invention is as follows:
a multistable electromagnetic operating mechanism comprises an axial driving rod and an axial driving shell, wherein the upper part and the lower part of the axial driving rod are respectively sleeved in an upper sliding chute and a lower sliding chute of the axial driving shell, a first axial driving coil, an axial driving permanent magnet and a second axial driving coil which are sleeved with the axial driving rod are sequentially arranged in the axial driving shell from top to bottom, and the middle part of the axial driving rod is also provided with an upper limiting pin and a lower limiting pin; the left part and the right part of the transposition driving rod are respectively sleeved in a left sliding chute and a right sliding chute of the transposition shell, a first transposition driving coil, a transposition driving permanent magnet and a second transposition driving coil which are sleeved with the transposition driving rod are sequentially arranged in the transposition shell from left to right, and a left limiting pin and a right limiting pin are further arranged in the middle of the transposition driving rod; the upper part of the transposition sliding groove shell is fixedly connected with the lower end of the axial driving rod; the front plate and the rear plate of the transposition chute shell are symmetrically provided with permanent magnet chutes, and the lower plate of the transposition chute shell is provided with a shifting fork chute; the lower part of the transposition chute shell is also connected to the upper part of the transposition shell through a connecting plate; the device also comprises a transposition transverse connecting rod, a first vertical connecting rod and a second vertical connecting rod; the upper ends of the first vertical connecting rod and the second vertical connecting rod are respectively and fixedly connected to the left end and the right end of the transposition transverse connecting rod, and the lower ends of the first vertical connecting rod and the second vertical connecting rod are respectively and fixedly connected to the left end and the right end of the transposition driving rod, so that the transposition transverse connecting rod is parallel to the transposition driving rod; the upper part of the transposition shifting fork is positioned in a shifting fork sliding chute of the transposition sliding chute shell, the middle part of the permanent magnet sliding block is longitudinally and fixedly sleeved on the upper part of the transposition shifting fork, and the front part and the rear part of the permanent magnet sliding block are respectively positioned in the permanent magnet sliding chutes of the front plate and the rear plate of the transposition sliding chute shell; the lower part of the transposition shifting fork is fixedly sleeved in the middle of the transposition transverse connecting rod; the transposition sliding groove shell and the transposition shell are both positioned in the guide shell; the front plate and the rear plate of the guide shell are symmetrically provided with displacement grooves; the transposition groove comprises a first vertical sliding groove, a first transverse sliding groove and a second vertical sliding groove, the lower end of the first vertical sliding groove is communicated with the right end of the first transverse sliding groove, and the left end of the first transverse sliding groove is communicated with the upper end of the second vertical sliding groove; the front end and the rear end of the permanent magnet sliding block are respectively positioned in the transposition grooves of the front plate and the rear plate of the guide shell; the upper ends of the front plate and the rear plate of the guide housing are respectively fixedly connected to the lower portion of the axial driving housing.
Furthermore, the transposition slot further comprises a second transverse sliding groove and a third vertical sliding groove, the left end of the second transverse sliding groove is communicated with the lower end of the second vertical sliding groove, and the upper end of the third vertical sliding groove is communicated with the right end of the second transverse sliding groove.
Furthermore, the transposition slot further comprises a third transverse sliding slot and a fourth vertical sliding slot, the left end of the third transverse sliding slot is communicated with the lower end of the third vertical sliding slot, and the upper end of the fourth vertical sliding slot is communicated with the right end of the third transverse sliding slot; so as to increase the horizontal sliding groove and the vertical sliding groove.
Further, the axial driving permanent magnet is replaced with a holding coil.
Further, the transposition driving permanent magnet is replaced with a holding coil.
Furthermore, the axial driving permanent magnet is tightly fixed and sleeved in the middle of the axial driving rod, and the upper end and the lower end of the axial driving permanent magnet form the upper limiting pin and the lower limiting pin.
Furthermore, the transposition driving permanent magnet is tightly fixedly sleeved in the middle of the transposition driving rod, and the left end and the right end of the transposition driving permanent magnet form the left limiting pin and the right limiting pin.
Compared with the prior art, the invention has the beneficial effects that:
1) compared with a tristable electromagnetic operating mechanism with a spring, the invention greatly reduces the system oscillation and avoids the problem that the output terminal of the driving rod outputs an oscillation signal.
2) Compared with the traditional driving mode that the electromagnetic coil needs to be electrified for a long time, the electromagnetic coil only needs to be electrified during reversing to control, so that the energy consumption is reduced, the element temperature rise is controlled, the reliability is improved, and the service life is prolonged.
3) The invention realizes the function expansion from the tristable state to the multistable state, the maximum distance between each position is not limited, and the invention can be reliably switched and stabilized at each steady-state position.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is an exploded perspective view of the present invention.
Fig. 5 is a reverse perspective view of the shift chute housing of the present invention.
Fig. 6 is an external view of the operation process of the present invention (taking tristable state as an example).
Fig. 7 is a schematic diagram of the internal structure of the operation process of the present invention (taking tristable state as an example).
Fig. 8 is a schematic view of the present invention in which the axial driving permanent magnet is replaced with a driving coil.
Fig. 9 is a schematic view of the axial driving permanent magnet of the present invention tightly fixed in the middle of the axial driving rod.
FIG. 10 is a schematic view of a tri-stable slider position.
FIG. 11 is a schematic view of a multistable slider position.
Description of the labeling: 01-an axial driving rod, 02-an axial driving shell, 03-a first axial driving coil, 04-an axial driving permanent magnet, 05-a second axial driving coil, 06-a transposition sliding groove shell, 07-a permanent magnet sliding block, 08-a transposition shifting fork, 09-a transposition transverse connecting rod, 10-a first vertical connecting rod, 11-a transposition shell, 12-a transposition driving rod, 13-a guide shell, 14-a second vertical connecting rod, 15-a second transposition driving coil, 16-a transposition driving permanent magnet, 17-a first driving coil, 18-a first holding coil and 19-a second holding coil.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, a multistable electromagnetic operating mechanism includes an axial driving rod, an axial driving shell, an axial driving coil, an axial driving permanent magnet, a transposition sliding groove shell, a permanent magnet sliding block, a transposition shifting fork, a transposition transverse connecting rod, a transposition vertical connecting rod, a transposition shell, a transposition driving rod, a guide shell, a transposition driving coil and a transposition permanent magnet. The axial driving shell 02 and the guide shell 13 are fixedly connected to form a rack, the axial driving coils 03 and 05 and the axial driving permanent magnet 04 are fixedly connected to the axial driving shell 02, and the axial driving rod 01 can slide on the axial driving shell 02 along the axis and is limited in stroke through a limit pin on the axial driving rod. One end of the axial driving rod 01 is used as an output end to be connected with an external structure so as to drive the external structure, and the other end of the axial driving rod is fixedly connected with the transposition sliding groove shell 06. The transposition shell 11 is in contact with the guide shell 13, the transposition shell 11 is restrained by the guide shell 13 and can only reciprocate on the guide shell 13 along the axial direction of the axial driving rod 01, transposition driving coils 15 and 17 and a transposition permanent magnet 16 are fixedly connected in the transposition shell 11, the transposition driving rod 12 is fixedly connected with a transposition transverse connecting rod 09 through a first vertical connecting rod 10 and a second vertical connecting rod 14 and can reciprocate in the transposition shell 11 along the axial direction of the transposition driving rod 12 and carry out stroke limitation through a limiting pin on the transposition driving rod. The transposition transverse connecting rod 09 is fixedly connected with the transposition shifting fork 08, and meanwhile, the permanent magnet sliding block 07 is fixedly connected with the transposition shifting fork 08. The permanent magnet sliding block 07 is restrained by the transposition sliding groove shell 06 on the inner layer of the structure, and drives the structure fixedly connected with the permanent magnet sliding block to reciprocate only along the axial direction of the transposition driving rod 12; the permanent magnet slider 07 is constrained by the transposition groove on the guide shell 13 on the outer layer of the structure, and drives the related structure to move along the transposition groove on the guide shell 13 under the combined action of the axial drive rod 01 and the transposition drive rod 12. Meanwhile, magnetic attraction force exists between the permanent magnet slider 07 and the guide shell 13 at a stroke node, and the permanent magnet slider 07 is stabilized at the position under the condition that large external force is not applied.
As shown in fig. 3 and 4, the axial driving rod 01 and the transposition driving rod 12 are provided with end faces of limiting steps, which is equivalent to a limiting pin for limiting.
As shown in fig. 8, the axial driving permanent magnet 04 may be replaced with a first holding coil 18 and a second holding coil 19. Likewise, the index drive permanent magnet 16 may be replaced with a holding coil.
As shown in fig. 9, the axial driving permanent magnet 04 can be tightly fixed to the middle of the axial driving rod 01 to form a limiting step end face. Similarly, the transposition driving permanent magnet 16 can also be tightly fixed and sleeved in the middle of the transposition driving rod 12 to form a limiting step end face.
There is a magnetic attraction between the permanent magnet slider 07 and the guide housing 13, which ensures that the permanent magnet slider 07 is stable in a stable position when it slides to that position and resists a certain external load.
The multistable electromagnetic operating mechanism can realize the quantity expansion from a tristable state to a multistable state by increasing the bending number of the sliding track of the permanent magnet slider 07, and the transposition driving rod only needs two stable states. The travel between the steady states can be adjusted by the length of the sliding track on the guide housing 13.
The electromagnetic driving form of the multistable electromagnetic operating mechanism comprises but is not limited to the following forms:
1) the driving coil and the holding coil are fixedly connected with the shell, the driving rod is contacted with the inner wall of the shell under the action of the holding coil and is stabilized at the position, and the driving rod moves in the axial direction under the action of the driving coil and is stabilized at a new position under the action of the holding coil;
2) the driving coil and the permanent magnet are fixedly connected with the shell, the driving rod moves in the axial direction under the action of the driving coil and is stabilized at a new position under the action of the permanent magnet;
3) the driving coil is fixedly connected with the shell, the permanent magnet is fixedly connected with the driving rod, the permanent magnet and the driving rod are contacted with the inner wall of the shell under the action of the permanent magnet and are stabilized at the position, and the permanent magnet and the driving rod move in the axial direction under the action of the driving coil and are stabilized at a new position under the action of the permanent magnet.
As shown in fig. 6 and 7, the movement process is described by taking a tristable state as an example:
1) the transposition drive rod 11 slides to the R position under the action of the drive coil 13 (or 15) and the transposition permanent magnet 14 and is stable under the action of the transposition permanent magnet 14, and the axial direction drive rod 01 slides to the 1 position under the action of the drive coil 03 (or 05) and the axial direction drive permanent magnet 04 and is stable under the action of the permanent magnet slider 07 and the guide shell 12. The output end of the axial driving rod 01 reaches the stable position 1;
2) the transposition drive rod 11 is kept still, and the axial direction drive rod 01 slides to the 2R position under the action of the drive coil 05 (or 03) and the axial direction drive permanent magnet 04 and is stable under the action of the permanent magnet slider 07 and the guide shell 12. The output end of the axial driving rod 01 reaches the stable position 2;
3) the axial direction drive rod 01 is kept stationary, and the transposition drive rod 11 slides to 2L position under the action of the drive coil 15 (or 13) and the transposition permanent magnet 14 and is stabilized under the action of the transposition permanent magnet 14. The output end of the axial driving rod 01 maintains a stable position 2;
4) the transposition drive rod 11 is kept still, and the axial direction drive rod 01 slides to 3 positions under the action of the drive coil 05 (or 03) and the axial direction drive permanent magnet 04 and is stable under the action of the permanent magnet slider 07 and the guide shell 12. The output end of the axial driving rod 01 reaches a stable position 3;
5) the reverse movement is opposite to the above control relationship, and the switching between two adjacent stable states is the same.
As shown in fig. 11, by changing the number of times of bending of the slide rail on the guide housing 13 and the structural dimensions of the axial direction driving portion and the guide housing 13, it is possible to realize multistable position control of a tristable state or more; the magnitude of the stroke Li between the steady states can be adjusted by changing the length of the orbit in the axial direction.
Claims (7)
1. A multistable electromagnetic operating mechanism is characterized in that,
the axial driving mechanism comprises an axial driving rod (01) and an axial driving shell (02), wherein the upper part and the lower part of the axial driving rod (01) are respectively sleeved in an upper sliding chute and a lower sliding chute of the axial driving shell (02), a first axial driving coil (03), an axial driving permanent magnet (04) and a second axial driving coil (05) which are sleeved with the axial driving rod (01) are sequentially arranged in the axial driving shell (02) from top to bottom, and an upper limiting pin and a lower limiting pin are further arranged in the middle of the axial driving rod (01);
the device is characterized by further comprising a transposition driving rod (12) and a transposition shell (11), wherein the left part and the right part of the transposition driving rod (12) are respectively sleeved in a left sliding chute and a right sliding chute of the transposition shell (11), a first transposition driving coil (17), a transposition driving permanent magnet (16) and a second transposition driving coil (15) which are sleeved with the transposition driving rod (12) are sequentially arranged in the transposition shell (11) from left to right, and the middle part of the transposition driving rod (12) is further provided with a left limiting pin and a right limiting pin;
the upper part of the transposition sliding groove shell (06) is fixedly connected with the lower end of the axial driving rod (01); the front plate and the rear plate of the transposition chute shell (06) are symmetrically provided with permanent magnet chutes, and the lower plate of the transposition chute shell (06) is provided with a shifting fork chute; the lower part of the transposition chute shell (06) is also connected to the upper part of the transposition shell (11) through a connecting plate;
the device also comprises a transposition transverse connecting rod (09), a first vertical connecting rod (10) and a second vertical connecting rod (14); the upper ends of the first vertical connecting rod (10) and the second vertical connecting rod (14) are respectively and fixedly connected to the left end and the right end of the transposition transverse connecting rod (09), and the lower ends of the first vertical connecting rod and the second vertical connecting rod are respectively and fixedly connected to the left end and the right end of the transposition driving rod (12), so that the transposition transverse connecting rod (09) is parallel to the transposition driving rod (12);
the upper part of the transposition shifting fork (08) is positioned in a shifting fork sliding groove of the transposition sliding groove shell (06), the middle part of the permanent magnet sliding block (07) is longitudinally and fixedly sleeved on the upper part of the transposition shifting fork (08), and the front part and the rear part of the permanent magnet sliding block are respectively positioned in permanent magnet sliding grooves of a front plate and a rear plate of the transposition sliding groove shell (06); the lower part of the transposition shifting fork (08) is fixedly sleeved in the middle of the transposition transverse connecting rod (09);
the transposition slide groove shell (06) and the transposition shell (11) are both positioned in the guide shell (13); the front plate and the rear plate of the guide shell (13) are symmetrically provided with displacement grooves; the transposition groove comprises a first vertical sliding groove, a first transverse sliding groove and a second vertical sliding groove, the lower end of the first vertical sliding groove is communicated with the right end of the first transverse sliding groove, and the left end of the first transverse sliding groove is communicated with the upper end of the second vertical sliding groove; the front end and the rear end of the permanent magnet sliding block (07) are respectively positioned in the transposition grooves of the front plate and the rear plate of the guide shell (13); the upper ends of the front plate and the rear plate of the guide housing (13) are fixedly connected to the lower portion of the axial drive housing (02), respectively.
2. The multistable electromagnetic operating mechanism of claim 1, wherein the transposition slot further comprises a second transverse sliding slot and a third vertical sliding slot, the left end of the second transverse sliding slot is communicated with the lower end of the second vertical sliding slot, and the upper end of the third vertical sliding slot is communicated with the right end of the second transverse sliding slot.
3. The multistable electromagnetic operating mechanism according to claim 2, wherein the transposition slot further comprises a third transverse sliding slot and a fourth vertical sliding slot, the left end of the third transverse sliding slot is communicated with the lower end of the third vertical sliding slot, and the upper end of the fourth vertical sliding slot is communicated with the right end of the third transverse sliding slot; so as to increase the horizontal sliding groove and the vertical sliding groove.
4. A multistable electromagnetic actuator according to claim 1 wherein the axial drive permanent magnet (04) is replaced by a holding coil.
5. A multistable electromagnetic actuator according to claim 1 wherein the transposed driving permanent magnet (16) is replaced by a holding coil.
6. The multistable electromagnetic operating mechanism according to claim 1, characterized in that the axial driving permanent magnet (04) is tightly fixed and sleeved on the middle part of the axial driving rod (01), and the upper and lower ends of the axial driving permanent magnet form the upper and lower limit pins.
7. The multistable electromagnetic operating mechanism according to claim 1, characterized in that the transposition driving permanent magnet (16) is tightly fixed and sleeved on the middle part of the transposition driving rod (12), and the left and right ends of the transposition driving permanent magnet form the left and right limiting pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972423.2A CN110767407B (en) | 2019-10-14 | 2019-10-14 | Multistable electromagnetic operating mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910972423.2A CN110767407B (en) | 2019-10-14 | 2019-10-14 | Multistable electromagnetic operating mechanism |
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| CN110767407A CN110767407A (en) | 2020-02-07 |
| CN110767407B true CN110767407B (en) | 2021-03-05 |
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| CN201910972423.2A Active CN110767407B (en) | 2019-10-14 | 2019-10-14 | Multistable electromagnetic operating mechanism |
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| DE10031231A1 (en) * | 1999-06-23 | 2001-05-23 | Denso Corp | Electromagnetic actuator, e.g. for vehicle transmission valve, has permanent magnet, provided in housing section, that generates a magnetic flow which is in the same direction as the magnetic flow generated by a coil |
| CN1380670A (en) * | 2001-04-06 | 2002-11-20 | 开关设计与制造公司 | Electromagnetic relay and moving armature of its electromagnetic circuit can have three kinds of stable equilibrium positions |
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| CN205714638U (en) * | 2016-04-22 | 2016-11-23 | 贾新奎 | A kind of energy-saving water pump using solenoid actuated |
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2019
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| DE10031231A1 (en) * | 1999-06-23 | 2001-05-23 | Denso Corp | Electromagnetic actuator, e.g. for vehicle transmission valve, has permanent magnet, provided in housing section, that generates a magnetic flow which is in the same direction as the magnetic flow generated by a coil |
| CN1380670A (en) * | 2001-04-06 | 2002-11-20 | 开关设计与制造公司 | Electromagnetic relay and moving armature of its electromagnetic circuit can have three kinds of stable equilibrium positions |
| CN101351946A (en) * | 2005-12-30 | 2009-01-21 | 吉莱特公司 | High speed assembly actuator |
| CN105009233A (en) * | 2013-03-13 | 2015-10-28 | 三菱电机株式会社 | Solenoid-operated device |
| JP2015028979A (en) * | 2013-07-30 | 2015-02-12 | 三菱電機株式会社 | Electromagnet device |
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| CN106532549A (en) * | 2015-09-10 | 2017-03-22 | 亚洲电力设备(深圳)股份有限公司 | Hermetically sealed touch switch cabinet based on permanent magnet operating mechanism |
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| CN110767407A (en) | 2020-02-07 |
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