CN101944457B - Magnetic latching electromagnet with state detection function - Google Patents
Magnetic latching electromagnet with state detection function Download PDFInfo
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- CN101944457B CN101944457B CN 201010277458 CN201010277458A CN101944457B CN 101944457 B CN101944457 B CN 101944457B CN 201010277458 CN201010277458 CN 201010277458 CN 201010277458 A CN201010277458 A CN 201010277458A CN 101944457 B CN101944457 B CN 101944457B
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- movable contact
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- cover plate
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Abstract
The invention discloses a magnetic latching electrode with a state detection function. Two circular steel magnets with opposite polarities are arranged in a shell of the magnetic latching electrode, a coil is externally sleeved on each of the two circular steel magnets, an armature is inserted into each of steel magnets, the two ends of each armature are connected with an upper pushrod and a lower pushrod respectively, a cover plate is fixed at the upper end port of the shell, the upper pushrod passes through a through hole on the cover plate and then the top end of the upper pushrod is sleeved with a tower spring and a moveable spring plate, the tower spring is positioned below the moveable spring plate, and the lower pushrod passes through the through hole at the bottom of the shell to extend out of the shell; and a detection circuit board is fixed on the cover plate and positioned above the moveable spring plate, a housing is clamped on the upper end of the shell to make the cover plate and the detection circuit board positioned in the housing. In the invention, a new magnetic path structure is formed by superposing an electromagnetic path generated by the coil and the magnetic path of the steel magnets, so that the size and weight of the electromagnet are reduced, and the anti-vibration and impact resistance of the magnetic path system are improved; and the deformation of the tower spring supplies a pressure for the moveable spring plate, so that the deformation of the spring plate is avoided and the anti-vibration and impact resistance are further improved. Moreover, an outgoing line of the electromagnet is sealed in and fixed on the housing through a glass insulator, and the sealing requirement of the electromagnet is met.
Description
Technical field
The invention belongs to magnetic-holding electric magnet manufacturing technology field, be specifically related to the magnetic-holding electric magnet that a kind of carrier state detects.
Background technology
Volume, the quality of existing magnetic-holding electric magnet are big.And state-detection is through promoting the inner movable contact spring of electromagnet behind the coil stimulating during armature motion, make movable contact spring produce distortion, realize being switched on or switched off of movable contact spring and static contact spring piece, whether being in required state with this state of judging electromagnet.This structure is easy to generate contact chatter receiving under impact, the vibration condition, causes electromagnet state-detection mistake.Mostly the lead-out wire of present most of electromagnet is soft lead-in wire in addition, and the lead-in wire position of electromagnet is difficult to sealing, can't satisfy user's requirement.
Summary of the invention
The technical problem that the present invention solves: design the magnetic-holding electric magnet that a kind of carrier state detects; The one, form a kind of new magnetic structure through being provided with two relative annular magnetic steels of polarity in coil; The volume of electromagnet is reduced, quality alleviates, and improved anti-vibration, the impact property of magnetic circuit system; The 2nd, be deformed into movable contact spring through the tower spring pressure is provided, can avoid the reed self-deformation, further improved anti-vibration, impact property.In addition, the lead-out wire of electromagnet on case, has guaranteed the seal request of electromagnet through the glass insulator sealing and fixing.
Technical solution of the present invention is: the magnetic-holding electric magnet that a kind of carrier state detects comprises housing and case.Be equipped with in the housing two polarity relative annular magnetic steel I and annular magnetic steel II, annular magnetic steel I and annular magnetic steel II are set with coil outward, are fitted with brass tube in annular magnetic steel I and the annular magnetic steel II; Be fitted with armature in the brass tube; The armature two ends are connected with upper push-rod and lower push-rod respectively, and the port of housing is fixed with cover plate, and the top was set with tower spring and movable contact spring after upper push-rod passed the through hole on the cover plate; And the tower spring is positioned at the below of movable contact spring, and the through hole that lower push-rod passes housing bottom stretches out outside the housing; The detection line plate is fixing on the cover board to be positioned at the top of movable contact spring, and the case spiral-lock makes cover plate and detection line plate be positioned at case in the upper end of housing.
Said movable contact spring is circular; Be shaped on the static contact spring piece of two semicircle shapes on the lower surface of said detection line plate, central authorities are shaped on a circular hole less than circular movable contact spring, and the static contact spring piece of two semicircle shapes is positioned at the top of the peripheral and circular movable contact spring of circular hole.
Be sintered to fix two lead terminal I of detection line plate and two lead terminal II of coil through glass insulator on the said case, and lead terminal I is connected with the lead-in wire of detection line plate, lead terminal II is connected with the lead-in wire of coil.
The top spinning screw I of said upper push-rod, tower spring and movable contact spring are sleeved on the screw I, and the tower spring is positioned at the below of movable contact spring.
Said detection line plate is fixed on the top of cover plate through screw II and back-up ring.
Advantage that the present invention compared with prior art has and effect:
1, adopts the magnetic circuit system of the relative magnet steel magnetic circuit that annular magnetic steel produced of two polarity and the electromagnetic circuit mutual superposition of coil generation; Can under identical electromagnetic circuit condition, effectively improve the magnetic confining force of armature; Improve anti-vibration, the impact property of magnetic circuit system, and volume is reduced 40%.
2, the stress that adopts the distortion of tower spring to produce is that movable contact spring provides pressure, avoids the reed self-deformation, guarantees the reliable connection of contact system, improves anti-vibration, the impact property of condition detecting system.
3, the lead-out wire of electromagnet on case, has guaranteed the seal request of electromagnet through the glass insulator sealing and fixing.Leak rate is not more than 1 * 10
0Pa.cm
2/ s.
Description of drawings
Fig. 1 is the structure cutaway view of positive incentive state of the present invention,
Fig. 2 is the structure cutaway view of reverse energization state of the present invention,
Fig. 3 is a contour structures stereogram of the present invention,
Fig. 4 is a contour structures vertical view of the present invention.
Embodiment
In conjunction with accompanying drawing 1,2,3,4 a kind of embodiment of the present invention is described.
The magnetic-holding electric magnet that a kind of carrier state detects has housing 1 and case 2.Be equipped with in the housing 1 two polarity relative annular magnetic steel I 4 and annular magnetic steel II 5; Annular magnetic steel I 4 and the annular magnetic steel II 5 outer coils 6 that are set with; Be fitted with brass tube 7 in annular magnetic steel I 4 and the annular magnetic steel II 5; Be fitted with armature 8 in the brass tube 7, armature 8 two ends are connected with upper push-rod 9 and lower push-rod 10 respectively, and the port of housing 1 is fixed with cover plate 11.Upper push-rod 9 passes top spinning screw I 20 behind the through hole on the cover plate 11, and tower spring 12 and movable contact spring 13 are sleeved on the screw I 20, and tower spring 12 is positioned at the below of movable contact spring 13.The through hole that lower push-rod 10 passes housing 1 bottom stretches out outside the housing 1; Detection line plate 14 is fixed on the cover plate 11 through screw II 21 and back-up ring 3 and is positioned at the top of movable contact spring 13.Case 2 spiral-locks make cover plate 11 and detection line plate 14 be positioned at case 2 in the upper end of housing 1.
Said movable contact spring 13 is circular; Be shaped on the static contact spring piece 18 of two semicircle shapes on the lower surface of said detection line plate 14; Central authorities are shaped on a circular hole 19 less than circular movable contact spring 13, and the static contact spring piece 18 of two semicircle shapes is positioned at the top of the peripheral and circular movable contact spring 13 of circular hole 19.
Be sintered to fix two lead terminal I 16 of detection line plate 14 and two lead terminal II 17 of coil 6 through glass insulator 15 on the said case 2; And lead terminal 16 is connected with the lead-in wire of detection line plate 14, and lead terminal II 17 is connected with the lead-in wire of coil 6.
Operation principle: the initial condition of electromagnet is the reverse energization state; When coil 6 adds the direct impulse driving voltage; The magnetic circuit stack of magnetic circuit that coil 6 is produced and upper magnetic steel I 4 and lower magnetic steel II 5, the magnetic force of upper magnetic steel I 4 increases, and the magnetic force of lower magnetic steel II 5 reduces; Armature 8 is moved upward, and electromagnet is in the positive incentive state; After coil 6 de-energisations, the magnetic force that self produces through upper magnetic steel I 4 makes armature 8 remain on the positive incentive state; Meanwhile lower push-rod 10 is with armature 8 withdrawals; To the user required suction is provided; The fixing movable contact spring 13 in upper push-rod 9 tops moves upward with armature 8; And contact with static contact spring piece 18 on detection line plate 14 lower surfaces, the circuit of detection line plate 14 is connected, show that through external display element armature 8 is in the positive incentive state.When coil 6 adds the reverse impulse driving voltage; The magnetic circuit stack of magnetic circuit that coil 6 is produced and upper magnetic steel I 4 and lower magnetic steel II 5, the magnetic force of upper magnetic steel I 4 reduces, and the magnetic force of lower magnetic steel II 5 increases; Armature 8 is moved downward be retracted into initial condition, electromagnet is in the reverse energization state; After coil 6 de-energisations, armature 8 remains on the reverse energization state through the magnetic force that lower magnetic steel II 5 self produces; Meanwhile lower push-rod 10 stretches out with armature 8, to the user required thrust is provided; The fixing movable contact spring 13 in upper push-rod 9 tops moves downward with armature 8, and breaks away from static contact spring piece 18 on detection line plate 14 lower surfaces, and the circuit of detection line plate 14 is broken off, and shows that through external display element armature 8 is in the reverse energization state.
Claims (5)
1. the magnetic-holding electric magnet that detects of a carrier state; Comprise housing (1) and case (2); It is characterized in that: be equipped with in the housing (1) two polarity relative annular magnetic steel I (4) and annular magnetic steel II (5), annular magnetic steel I (4) and annular magnetic steel II (5) are outer to be set with coil (6), is fitted with brass tube (7) in annular magnetic steel I (4) and the annular magnetic steel II (5); Be fitted with armature (8) in the brass tube (7); Armature (8) two ends are connected with upper push-rod (9) and lower push-rod (10) respectively, and the port of housing (1) is fixed with cover plate (11), and the top was set with tower spring (12) and movable contact spring (13) after upper push-rod (9) passed the through hole on the cover plate (11); And tower spring (12) is positioned at the below of movable contact spring (13), and the through hole that lower push-rod (10) passes housing (1) bottom stretches out outside the housing (1); Detection line plate (14) is fixed on the cover plate (11), is positioned at the top of movable contact spring (13), and case (2) spiral-lock makes cover plate (11) and detection line plate (14) be positioned at case (2) in the upper end of housing (1).
2. the magnetic-holding electric magnet that a kind of carrier state according to claim 1 detects, it is characterized in that: said movable contact spring (13) is circular; Be shaped on the static contact spring piece (18) of two semicircle shapes on the lower surface of said detection line plate (14); Central authorities are shaped on a circular hole less than circular movable contact spring (13) (19), and the static contact spring piece of two semicircle shapes (18) is positioned at the top of the peripheral and circular movable contact spring (13) of circular hole (19).
3. the magnetic-holding electric magnet that a kind of carrier state according to claim 1 and 2 detects; It is characterized in that: said case (2) is gone up and is sintered to fix two lead terminal I (16) of detection line plate (14) and two lead terminal II (17) of coil (6) through glass insulator (15); And lead terminal I (16) is connected with the lead-in wire of detection line plate (14), and lead terminal II (17) is connected with the lead-in wire of coil (6).
4. the magnetic-holding electric magnet that a kind of carrier state according to claim 1 and 2 detects; It is characterized in that: the top spinning screw I (20) of said upper push-rod (9); Tower spring (12) and movable contact spring (13) are sleeved on the screw I (20), and tower spring (12) is positioned at the below of movable contact spring (13).
5. the magnetic-holding electric magnet that a kind of carrier state according to claim 1 and 2 detects, it is characterized in that: said detection line plate (14) is fixed on the top of cover plate (11) through screw II (21) and back-up ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277458 CN101944457B (en) | 2010-09-07 | 2010-09-07 | Magnetic latching electromagnet with state detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277458 CN101944457B (en) | 2010-09-07 | 2010-09-07 | Magnetic latching electromagnet with state detection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101944457A CN101944457A (en) | 2011-01-12 |
| CN101944457B true CN101944457B (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010277458 Active CN101944457B (en) | 2010-09-07 | 2010-09-07 | Magnetic latching electromagnet with state detection function |
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| CN (1) | CN101944457B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240893B (en) * | 2014-09-16 | 2016-05-25 | 中国船舶重工集团公司第七〇七研究所九江分部 | A kind of bidirectional displacement type proportion electro-magnet |
| CN106449010A (en) * | 2016-08-31 | 2017-02-22 | 宝鸡众力通用电器股份有限公司 | Electromagnetic magnet with manual control and state detecting functions |
| CN107256755B (en) * | 2017-07-31 | 2023-09-08 | 中国船舶重工集团公司第七0七研究所 | Built-in two-way position detection's self preservation electromagnet |
| CN112289638A (en) * | 2020-10-19 | 2021-01-29 | 湖北三江航天红林探控有限公司 | Locking mechanism based on two-way magnetic latching |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792390A (en) * | 1973-05-29 | 1974-02-19 | Allis Chalmers | Magnetic actuator device |
| EP0187055A1 (en) * | 1984-11-22 | 1986-07-09 | Merlin Gerin | Polarised electromagnetic relay with magnetic latching for a trip device of a circuit breaker |
| US5774323A (en) * | 1995-10-31 | 1998-06-30 | Eaton Corporation | Detection of contact position from coil current in electromagnetic switches having AC or DC operated coils |
| CN2485779Y (en) * | 2001-06-29 | 2002-04-10 | 贵州天义电器有限责任公司 | Magnetic contactor |
| CN2627633Y (en) * | 2003-07-22 | 2004-07-21 | 吉林永大集团有限公司 | Low-voltage switch permanent-magnet keeping drive mechanism |
| CN201032620Y (en) * | 2007-02-16 | 2008-03-05 | 吕强 | Electromagnetic drive permanent-magnet holding mechanism |
| CN201788905U (en) * | 2010-09-07 | 2011-04-06 | 宝鸡众力通用电器有限公司 | Magnetic keeping electromagnet with state detection |
-
2010
- 2010-09-07 CN CN 201010277458 patent/CN101944457B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3792390A (en) * | 1973-05-29 | 1974-02-19 | Allis Chalmers | Magnetic actuator device |
| EP0187055A1 (en) * | 1984-11-22 | 1986-07-09 | Merlin Gerin | Polarised electromagnetic relay with magnetic latching for a trip device of a circuit breaker |
| US5774323A (en) * | 1995-10-31 | 1998-06-30 | Eaton Corporation | Detection of contact position from coil current in electromagnetic switches having AC or DC operated coils |
| CN2485779Y (en) * | 2001-06-29 | 2002-04-10 | 贵州天义电器有限责任公司 | Magnetic contactor |
| CN2627633Y (en) * | 2003-07-22 | 2004-07-21 | 吉林永大集团有限公司 | Low-voltage switch permanent-magnet keeping drive mechanism |
| CN201032620Y (en) * | 2007-02-16 | 2008-03-05 | 吕强 | Electromagnetic drive permanent-magnet holding mechanism |
| CN201788905U (en) * | 2010-09-07 | 2011-04-06 | 宝鸡众力通用电器有限公司 | Magnetic keeping electromagnet with state detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101944457A (en) | 2011-01-12 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lei Jianwei Inventor after: Wang Jianguo Inventor after: Chen Hanning Inventor after: Yun Jing Inventor before: Lei Jianwei |
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Free format text: CORRECT: INVENTOR; FROM: LEI JIANWEI TO: LEI JIANWEI WANG JIANGUO CHEN HANNING YUN JING |
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