CN114255958B - Electromagnetic actuator - Google Patents
Electromagnetic actuator Download PDFInfo
- Publication number
- CN114255958B CN114255958B CN202111310696.4A CN202111310696A CN114255958B CN 114255958 B CN114255958 B CN 114255958B CN 202111310696 A CN202111310696 A CN 202111310696A CN 114255958 B CN114255958 B CN 114255958B
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- Prior art keywords
- unit
- permanent magnet
- mandrel
- groove
- core unit
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
-
- 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
-
- 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
- H01F7/128—Encapsulating, encasing or sealing
-
- 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
- H01F7/128—Encapsulating, encasing or sealing
- H01F7/129—Encapsulating, encasing or sealing of armatures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Electromagnets (AREA)
Abstract
The invention relates to the technical field of automobile engines, in particular to an electromagnetic actuator, which comprises an electromagnetic part and an executing part, wherein the electromagnetic part is connected with a power supply and is used for generating magnetic poles, and the executing part is close to/far away from the electromagnetic part under the action of the magnetic poles; the execution part comprises a moving mechanism which moves relative to the electromagnetic part, and the moving mechanism is fixedly connected with a permanent magnet unit; the permanent magnet units are arranged in a sealing way, so that impurities are prevented from contacting the permanent magnet units; the permanent magnet unit is magnetically connected with the valve core unit, and drives the valve core unit to approach/depart from the electromagnetic part. The permanent magnet is arranged in a sealing mode, impurities can be prevented from being adsorbed by the permanent magnet, and accordingly movement of the mandrel is prevented.
Description
Technical Field
The invention belongs to the technical field of automobile engines, and particularly relates to an electromagnetic actuator.
Background
In current electromagnetic devices for adjusting the cam displacement of an engine, it is known to vary the axial position of a sleeve rotatable integrally with a shaft and axially relatively movable along the camshaft of the shaft. The electromagnetic actuator is a driving mechanism for driving the cam sleeve to move, the engine controller gives out a control signal according to the actual working condition requirement of the engine, and drives the electromagnetic actuator to act so as to realize the axial movement of the cam sleeve on the cam shaft, thereby realizing the cam displacement and achieving the purpose of adjusting the valve lift.
However, existing cam shifting electromagnetic actuators have the following drawbacks:
1. the end face of the cover plate unit is contacted with the end face of the iron core, the end face of the iron core is worn more after being durable, burrs are generated on the orifice, and therefore the movement of the mandrel is hindered, and the performance and reliability of the electromagnetic actuator are affected;
2. the existing cam shifting electromagnetic actuator permanent magnet is not sealed, magnetic conductive impurities such as iron skiving and the like in engine oil are easy to be adsorbed by the magnet, and the impurities can be formed to block the movement of the mandrel to influence the performance and reliability.
Disclosure of Invention
In order to solve the problems, the invention provides an electromagnetic actuator, wherein a permanent magnet is arranged in a sealing way, so that the permanent magnet can be prevented from adsorbing impurities, and the movement of a mandrel is prevented; the blind hole matched with the mandrel is chamfered, so that a cavity capable of containing burrs is formed, the influence of the burrs on the movement of the mandrel is reduced, the contact area of the iron core unit and the permanent magnet is reduced, and therefore, when current is applied to generate magnetic poles, the permanent magnet can be rapidly separated from the iron core unit, and an actuator can rapidly act.
The technical scheme adopted by the invention is as follows: an electromagnetic actuator comprises an electromagnetic part and an executing part, wherein the electromagnetic part is connected with a power supply and used for generating magnetic poles, and the executing part is close to/far away from the electromagnetic part under the action of the magnetic poles; the execution part comprises a moving mechanism which moves relative to the electromagnetic part, and the moving mechanism is fixedly connected with a permanent magnet unit; the permanent magnet units are arranged in a sealing way, so that impurities are prevented from contacting the permanent magnet units; the permanent magnet unit is magnetically connected with the valve core unit, and drives the valve core unit to approach/depart from the electromagnetic part.
Preferably, an annular seat ring is sleeved at one end of the moving mechanism, the annular seat ring is fixedly connected with the moving mechanism, a first groove is formed in the annular seat ring, the permanent magnet unit is arranged in the first groove, a cover plate is fixedly connected to the annular seat ring, and the cover plate is in contact with the electromagnetic part.
Preferably, the annular seat ring comprises an inner ring and an outer ring, the inner ring is in contact connection with the moving mechanism, the outer ring is far away from the moving mechanism, and the height of the inner ring is higher than that of the outer ring; the upper surface of the cover plate is not higher than the height of the inner ring.
Preferably, the moving mechanism is a mandrel, the inside of the mandrel is hollow, a clamping groove is formed in one end of the mandrel, the length of the clamping groove is equal to the height of the inner ring of the annular seat ring, and the inner ring is matched with the clamping groove.
Preferably, the annular race is made of a material having a high magnetic resistance, the spindle is made of a non-soft magnetic material, and the cover plate is made of a soft magnetic material.
Preferably, the electromagnetic part comprises an iron core unit and a solenoid unit, the solenoid unit is arranged outside the iron core unit, the iron core unit is magnetically attracted with the permanent magnet unit and connected with a power supply.
Preferably, the iron core unit is provided with a second groove, an opening of the second groove is arranged at one end close to the permanent magnet unit, the mandrel is arranged in the second groove, one end of the mandrel extends out of the second groove and is connected with the annular seat ring, the mandrel slides relative to the second groove, and the depth of the second groove is larger than the movement stroke of the mandrel.
Preferably, a chamfer is arranged at the edge of the second groove, a cavity is formed between the chamfer and the mandrel, the edge of the inner ring is arranged in the cavity, and one end of the iron core unit, provided with the chamfer, is contacted with the cover plate.
Preferably, the front plate unit is connected to one end of the iron core unit, which is provided with a chamfer, and is separated from the cover plate, and the iron core unit and the front plate unit are made of soft magnetic materials.
Preferably, the permanent magnet units are permanent magnets, the number of the moving mechanisms is two, each moving mechanism is correspondingly provided with one valve core unit, and the axes of the valve core units are parallel to and not coaxial with the axes of the moving mechanisms.
The invention has the advantages that:
1) According to the invention, the permanent magnets are arranged in the sealed annular seat ring, so that the permanent magnets are prevented from adsorbing impurities, and the movement of the mandrel is prevented; according to the invention, the blind hole matched with the mandrel is arranged by adopting the chamfer, and when the iron core and the cover plate collide to generate burrs, the burrs can be contained due to the chamfer, so that the movement of the mandrel is not hindered, and the performance and the reliability of the electromagnetic actuator are ensured; the contact area of the iron core unit and the permanent magnet can be reduced, so that when current is applied to generate magnetic poles, the permanent magnet can be quickly separated from the iron core unit, and the actuator can quickly act;
2) The annular seat ring is arranged in a shape with a high inner ring and a low outer ring, the height of the inner ring is higher than that of the cover plate, welding can be facilitated, and the height of the inner ring is matched with the chamfer angle of the blind hole, so that the iron core is directly magnetically connected with the cover plate, the cover plate bears the impact force from the iron core, and damage to the annular seat ring during long-term working is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a partial enlarged view.
In the figure: 1-an electromagnetic part; a 2-solenoid unit; 3-core units; 4-front plate unit; 5-cover plate; 6-an annular seat ring; 7-permanent magnet units; 8-a mandrel; 9-valve sleeve unit; 10-a valve core unit; 15-a second groove; 16-a first groove; 17-cavity; 18-an outer ring; 20-an inner ring; 23-chamfering; 24-a housing.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-2, an electromagnetic actuator includes an electromagnetic part 1 and an actuator part, the electromagnetic part 1 is connected with a power supply for generating magnetic poles, and the actuator part is close to/far from the electromagnetic part under the action of the magnetic poles. When the electromagnetic portion is energized, the electromagnetic portion generates an electrode that attracts or repels the executing portion, thereby bringing the executing portion closer to/farther from the electromagnetic portion.
The execution part comprises a moving mechanism which moves relative to the electromagnetic part, and the moving mechanism is fixedly connected with a permanent magnet unit 7; the permanent magnet unit 7 is arranged in a sealing way, so that impurities are prevented from contacting the permanent magnet unit 7; the sealing mode of the permanent magnet unit 7 is that an annular seat ring 6 is sleeved on one end of the moving mechanism, the annular seat ring 6 is fixedly connected with the moving mechanism, namely, the annular seat ring 6 is sleeved on one end of the moving mechanism, a first groove 16 is formed in the annular seat ring 6, the permanent magnet unit 7 is arranged in the first groove 16, the shape of the permanent magnet unit 7 is matched with that of the first groove 16, a cover plate 5 is fixedly connected on the annular seat ring 6, and the cover plate 5 is in contact with the electromagnetic part.
The permanent magnet unit 7 is magnetically connected with the valve core unit 10, and the permanent magnet unit 7 drives the valve core unit 10 to approach/depart from the electromagnetic part. When the electromagnetic part and the power supply are powered off, the permanent magnet unit 7 is adsorbed on the electromagnetic part, meanwhile, the valve core unit 10 is also adsorbed on the permanent magnet unit 7, when the electromagnetic part is electrified to generate magnetic poles, the magnetic poles are opposite to the permanent magnets, repulsive force is generated, the moving mechanism is axially moved by the repulsive force, the valve core unit 10 is pushed, and the valve core unit 10 is arranged in the valve sleeve unit 9 and can axially slide and rotate, so that the camshaft switching function is realized.
The further technical scheme is that the annular seat ring 6 comprises an inner ring 20 and an outer ring 18, the inner ring 20 is in contact connection with the moving mechanism, the outer ring 18 is far away from the moving mechanism, and the height of the inner ring 20 is higher than that of the outer ring 18; the upper surface of the cover plate 5 is not higher than the height of the inner ring 20. The height of the inner ring 20 of the annular seat ring 6 is higher than that of the cover plate 5, so that one end of the cover plate 5 is abutted against the side wall of the inner ring 20, and the other end of the cover plate is covered on the outer ring 18, thereby being convenient for welding and bearing impact force.
The moving mechanism is a mandrel 8, the inside of the mandrel 8 is hollow, a clamping groove is formed in one end of the mandrel 8, the length of the clamping groove is equal to the height of an inner ring 20 of the annular seat ring 6, and the inner ring 20 is matched with the clamping groove.
The ring-shaped seat ring 6 is made of a material having high magnetic resistance so as to prevent the magnetic flux generated by the permanent magnet unit 7 from being concentrated toward the valve core unit 10, the core shaft 8 is made of a non-soft magnetic material, and the cover plate 5 is made of a soft magnetic material so as to secure the attraction force of the permanent magnet unit 7.
The electromagnetic part 1 comprises an iron core unit 3 and a solenoid unit 2, the solenoid unit 2 is arranged outside the iron core unit 3, the iron core unit 3 is magnetically connected with a permanent magnet unit 7, and the solenoid unit 2 is connected with a power supply. The electromagnetic part 1 is provided with a housing 24 outside, and includes a solenoid unit 2 and an iron core unit 3 fixed in the solenoid unit 2 inside, the housing 24 and the cover 5, the iron core unit 3 in the electromagnetic part 1, and the housing 24 form a magnetic circuit, and when the solenoid unit 2 is energized and de-energized, a magnetic pole opposite to the permanent magnet is generated, so that a repulsive force is generated, and the permanent magnet unit 7 moves in a direction away from the iron core unit 3.
The iron core unit 3 is provided with a second groove 15, an opening of the second groove 15 is arranged at one end close to the permanent magnet unit, the mandrel 8 is arranged in the second groove 15, one end of the mandrel 8 extends out of the second groove 15 and is connected with the annular seat ring 6, the mandrel 8 slides relative to the second groove 15, and the depth of the second groove 15 is larger than the movement stroke of the mandrel 8.
The edge of second recess 15 sets up chamfer 23, form cavity 17 between chamfer 23 and the dabber 8, when permanent magnet unit 7 motion, iron core unit 3 produced the striking with apron 5, cavity 17 can hold the burr that forms after the striking, avoids the burr that produces to lead to the motion of dabber 8 to be obstructed, the inner circle edge is dealt with in cavity 17, iron core unit 3 sets up the one end of chamfer 23 and contacts with apron 5.
The front plate unit 4 is connected to one end of the chamfer 23 arranged on the iron core unit 3, so that when the solenoid unit 2 is electrified, the electromagnetic part 1, the front plate unit 4, the iron core unit 3 and the rear plate (arranged above the iron core unit 3 in fig. 1) form a closed magnetic field loop to generate N-level or S-level induction lines, the front plate unit 4 is separated from the cover plate 5, and the iron core unit 3 and the front plate unit 4 are made of soft magnetic materials.
In this embodiment, preferably, two or one or three moving mechanisms may be symmetrically arranged, each moving mechanism is correspondingly provided with one valve core unit 10, and the axis of the valve core unit 10 is parallel to and different from the axis of the moving mechanism, and two groups of symmetrical valve core units 10 are closely arranged.
The specific working mode is as follows: in the embodiment of the invention, two groups of identical iron core units 3 are arranged, the iron core units 3 are fixed in the solenoid unit 2, a second groove 15 is arranged in the iron core units 3, a mandrel 8 is provided with a through hole (hollow), the permanent magnet unit 7 is completely wrapped and sealed by the annular seat ring 6 and the cover plate 5, the permanent magnet unit is arranged on the mandrel 8, the annular seat ring 6 and the cover plate 5 are fixedly connected with the mandrel 8 into a whole, the cover plate 5 is made of a magnetic conductive material, the front plate unit 4 is also made of a magnetic conductive material, when the solenoid unit 2 is powered off, a permanent magnet is adsorbed on the iron core unit 3, and meanwhile, the valve core unit 10 is adsorbed and is positioned at an initial position.
When the solenoid unit 2 is electrified, the magnetic pole generated by the iron core unit 3 is opposite to the permanent magnet, the repulsive force enables the permanent magnet to move in the direction away from the iron core unit 3, so that the mandrel 8 is driven to move in the direction away from the iron core unit 3 in the axial direction, the valve core unit 10 is pushed, the cam shaft switching function is realized, a chamfer 23 is arranged at the opening of the second groove 15 on the iron core unit 3, when burrs are generated by the impact of the iron core unit 3 and the cover plate 5, the burrs and impurities can be contained due to the chamfer 23, therefore, the movement of the mandrel 8 is not hindered, and the performance and the reliability of the electromagnetic actuator are ensured.
The above-described embodiments are preferred embodiments, and it should be noted that the above-described preferred embodiments should not be construed as limiting the invention, and the scope of the invention should be defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (4)
1. An electromagnetic actuator, characterized by: the device comprises an electromagnetic part (1) and an executing part, wherein the electromagnetic part (1) is connected with a power supply and used for generating magnetic poles, and the executing part is close to or far away from the electromagnetic part under the action of the magnetic poles; the execution part comprises a moving mechanism which moves relative to the electromagnetic part, and the moving mechanism is fixedly connected with a permanent magnet unit (7); the permanent magnet units (7) are arranged in a sealing way, so that impurities are prevented from contacting the permanent magnet units (7); the permanent magnet unit (7) is in magnetic attraction connection with the valve core unit (10), and the permanent magnet unit (7) drives the valve core unit (10) to be close to or far away from the electromagnetic part;
an annular seat ring (6) is sleeved at one end of the moving mechanism, the annular seat ring (6) is fixedly connected with the moving mechanism, a first groove (16) is formed in the annular seat ring (6), the permanent magnet unit (7) is arranged in the first groove (16), a cover plate (5) is fixedly connected to the annular seat ring (6), and the cover plate (5) is in contact with the electromagnetic part;
the annular seat ring (6) comprises an inner ring (20) and an outer ring (18), the inner ring (20) is in contact connection with the moving mechanism, the outer ring (18) is far away from the moving mechanism, and the height of the inner ring (20) is higher than that of the outer ring (18); the upper surface of the cover plate (5) is not higher than the height of the inner ring (20);
the moving mechanism is a mandrel (8), the inside of the mandrel (8) is hollow, a clamping groove is formed in one end of the mandrel (8), the length of the clamping groove is equal to the height of an inner ring (20) of the annular seat ring (6), and the inner ring (20) is matched with the clamping groove;
the electromagnetic part (1) comprises an iron core unit (3) and a solenoid unit (2), the solenoid unit (2) is arranged outside the iron core unit (3), the iron core unit (3) is magnetically connected with a permanent magnet unit (7), and the solenoid unit (2) is connected with a power supply;
the iron core unit (3) is provided with a second groove (15), an opening of the second groove (15) is arranged at one end close to the permanent magnet unit, the mandrel (8) is arranged in the second groove (15), one end of the mandrel (8) extends out of the second groove (15) to be connected with the annular seat ring (6), the mandrel (8) slides relative to the second groove (15), and the depth of the second groove (15) is larger than the movement stroke of the mandrel (8);
the edge of the second groove (15) is provided with a chamfer (23), a cavity (17) is formed between the chamfer (23) and the mandrel (8), the edge of the inner ring (20) is arranged in the cavity (17), and one end of the iron core unit (3) provided with the chamfer (23) is contacted with the cover plate (5).
2. The electromagnetic actuator of claim 1, wherein: the annular seat ring (6) is made of a material having a high magnetic resistance, the mandrel (8) is made of a non-soft magnetic material, and the cover plate (5) is made of a soft magnetic material.
3. The electromagnetic actuator of claim 1, wherein: the iron core unit (3) is provided with a chamfer (23), one end of the chamfer is connected with the front plate unit (4), the front plate unit (4) is separated from the cover plate (5), and the iron core unit (3) and the front plate unit (4) are made of soft magnetic materials.
4. The electromagnetic actuator of claim 1, wherein: the permanent magnet units (7) are permanent magnets, the number of the moving mechanisms is two, each moving mechanism is correspondingly provided with one valve core unit (10), and the axes of the valve core units (10) are parallel to and not coaxial with the axes of the moving mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310696.4A CN114255958B (en) | 2021-11-08 | 2021-11-08 | Electromagnetic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111310696.4A CN114255958B (en) | 2021-11-08 | 2021-11-08 | Electromagnetic actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114255958A CN114255958A (en) | 2022-03-29 |
| CN114255958B true CN114255958B (en) | 2023-07-25 |
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ID=80790613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111310696.4A Active CN114255958B (en) | 2021-11-08 | 2021-11-08 | Electromagnetic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114255958B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372271A (en) * | 2001-02-20 | 2002-10-02 | 孙奇锋 | Bistable electromagnetic actuator |
| JP2006279001A (en) * | 2005-03-30 | 2006-10-12 | Toyooki Kogyo Co Ltd | Electromagnet |
| DE102011009327A1 (en) * | 2011-01-18 | 2012-07-19 | Hydac Electronic Gmbh | Electromagnetic control device for use as cam adjuster for piston engine, has guide cylinder's inner space enlarged in length region associated to position occupied by magnet such that magnetic shunt-air gap is formed for magnetic flux |
| CN103700464A (en) * | 2013-12-17 | 2014-04-02 | 宁波华液机器制造有限公司 | Novel proportion electromagnet |
| JP2017005123A (en) * | 2015-06-11 | 2017-01-05 | いすゞ自動車株式会社 | Electromagnetic actuator |
| WO2017199286A1 (en) * | 2016-05-16 | 2017-11-23 | 三菱電機株式会社 | Electromagnetic actuator and method for manufacturing same |
| DE102017106180A1 (en) * | 2017-03-22 | 2018-09-27 | ECO Holding 1 GmbH | Actuator and electromagnetic actuator with an actuator |
| CN112412567A (en) * | 2020-10-12 | 2021-02-26 | 绵阳富临精工机械股份有限公司 | Cam shift electromagnetic actuator |
| JP2021089923A (en) * | 2019-12-03 | 2021-06-10 | 新電元メカトロニクス株式会社 | solenoid |
| CN113503199A (en) * | 2021-05-24 | 2021-10-15 | 绵阳富临精工股份有限公司 | Cam shift electromagnetic actuator |
-
2021
- 2021-11-08 CN CN202111310696.4A patent/CN114255958B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1372271A (en) * | 2001-02-20 | 2002-10-02 | 孙奇锋 | Bistable electromagnetic actuator |
| JP2006279001A (en) * | 2005-03-30 | 2006-10-12 | Toyooki Kogyo Co Ltd | Electromagnet |
| DE102011009327A1 (en) * | 2011-01-18 | 2012-07-19 | Hydac Electronic Gmbh | Electromagnetic control device for use as cam adjuster for piston engine, has guide cylinder's inner space enlarged in length region associated to position occupied by magnet such that magnetic shunt-air gap is formed for magnetic flux |
| CN103700464A (en) * | 2013-12-17 | 2014-04-02 | 宁波华液机器制造有限公司 | Novel proportion electromagnet |
| JP2017005123A (en) * | 2015-06-11 | 2017-01-05 | いすゞ自動車株式会社 | Electromagnetic actuator |
| WO2017199286A1 (en) * | 2016-05-16 | 2017-11-23 | 三菱電機株式会社 | Electromagnetic actuator and method for manufacturing same |
| DE102017106180A1 (en) * | 2017-03-22 | 2018-09-27 | ECO Holding 1 GmbH | Actuator and electromagnetic actuator with an actuator |
| JP2021089923A (en) * | 2019-12-03 | 2021-06-10 | 新電元メカトロニクス株式会社 | solenoid |
| CN112412567A (en) * | 2020-10-12 | 2021-02-26 | 绵阳富临精工机械股份有限公司 | Cam shift electromagnetic actuator |
| CN113503199A (en) * | 2021-05-24 | 2021-10-15 | 绵阳富临精工股份有限公司 | Cam shift electromagnetic actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114255958A (en) | 2022-03-29 |
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