CN103489717A - Clapper-type double-magnetic circuit magnetic latching relay - Google Patents

Clapper-type double-magnetic circuit magnetic latching relay Download PDF

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Publication number
CN103489717A
CN103489717A CN201310378565.9A CN201310378565A CN103489717A CN 103489717 A CN103489717 A CN 103489717A CN 201310378565 A CN201310378565 A CN 201310378565A CN 103489717 A CN103489717 A CN 103489717A
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magnetic
yoke
armature
magnetic conduction
pole
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CN201310378565.9A
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CN103489717B (en
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朱艺青
谭忠华
王其亚
蔡文智
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Xiamen Hongfa Electroacoustic Co Ltd
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Xiamen Hongfa Electroacoustic Co Ltd
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Abstract

The invention discloses a clapper-type double-magnetic circuit magnetic latching relay. The clapper-type double-magnetic circuit magnetic latching relay comprises a magnetic circuit part, wherein the magnetic circuit part comprises an iron core, an armature, a yoke, magnetic steel, a magnetism-conductive piece and a coil. The yoke comprises a pole surface part, a magnetism-conductive part and a connecting part; the iron core is installed in a coil hole; a pole surface is arranged at the upper end of the ion core, and the lower end of the iron core is connected with the connecting part of the yoke; the magnetism-conductive piece is opposite to the magnetism-conductive part of the yoke, and certain gaps are formed between the bottom of the magnetism-conductive piece and the connecting part of the yoke; the magnetic steel is arranged between the magnetism-conductive piece and the magnetism-conductive part of the yoke; the armature is arranged on the top of the magnetism-conductive piece, the two ends of the armature are opposite to the pole surface of the iron core and the pole surface of the yoke respectively to ensure that when the armature rotates, and the two ends of the armature can be switched alternatively between the part close to the pole surface of the iron core and the part close to the pole surface of the yoke. Due to the arrangement of a double-magnetic circuit structure, the setting state and the reset state of the magnetic circuits are almost symmetric under the condition that the magnetic circuits are not symmetric, and accordingly the balancing-type magnetic circuit structure of the magnetic latching relay is achieved.

Description

A kind of clapper-type double magnetic circuit magnetic latching relay
Technical field
The present invention relates to a kind of relay, particularly relate to a kind of clapper-type double magnetic circuit magnetic latching relay.
Background technology
Relay is the automatic switch element with isolation features, is widely used in the fields such as communication, automobile, control automatically, household electrical appliance, is one of most important control element.
Relay comes out so far from 19th-century, in performance and configuration aspects, huge variation has occurred, just towards the future development of miniaturization, energy-saving.Magnetic latching relay utilizes permanent magnet that electromagnetic attraction is provided, contact action when coil is energized, and after coil removes excitation, contact still keeps this state, is a kind of environmental protection relay.
Typical clapper-type electromagnetic relay will realize that magnetic keeps, and generally iron core (or yoke) is divided into to two parts, seals in a permanent magnet in centre.Fig. 1 is the structural representation of a kind of clapper-type magnetic latching relay of prior art, as shown in Figure 1, this clapper-type magnetic latching relay includes magnetic circuit part and contact portion, contact portion comprises moving spring part and quiet spring part, moving spring part comprises movable contact spring 101 and moving contact 102, quiet spring part comprises quiet spring 201 and fixed contact 202, magnetic circuit part comprises iron core 301, armature 302, yoke 303, magnet steel 304 and coil, coil consists of enamelled wire 305 and bobbin 306, enamelled wire 305 is wrapped on bobbin 306, iron core 301 is arranged in the hole of bobbin 306 usually, the upper end of iron core 301 is made as pole-face, the lower end of iron core 301 is connected with yoke 303 by magnet steel 304, yoke 303 is L-type, upper end forms the edge of a knife of yoke, armature 302 can rotate along the edge of a knife of yoke 303, when the actuating of relay, armature 302 can be inhaled the pole-face to iron core 301.The clapper-type magnetic latching relay of this structure, after coil stimulating, the magnetic circuit closure, permanent magnet is that the magnetic force that magnet steel 304 produces can make armature 302 be kept closed; But, after coil applies the involution excitation, permanent magnet is that the magnetic force of magnet steel 304 still has stronger suction to armature 302, need larger recuperability just can make armature remain on release condition.Under magnetic force and recuperability are mated improperly situation, may occur that the set voltage of coil is very little, resetting voltage is very large, and the situation that even can't reset needs to increase the power consumption of involution coil.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, provide a kind of clapper-type double magnetic circuit magnetic latching relay, by two magnetic route structure is set, in the asymmetric situation of magnetic circuit, make its set and reset mode almost symmetry, thereby realized that balanced type magnetic keeps the electromagnetic relay magnetic structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of clapper-type double magnetic circuit magnetic latching relay comprises magnetic circuit part; Described magnetic circuit part comprises iron core, armature, yoke, magnet steel, magnetic conduction sheet and coil; Yoke comprises pole-face part, magnetic conduction part and the coupling part sequentially joined; Iron core is arranged in the hole of bobbin of coil, and the upper end of iron core is made as pole-face, and the lower end of iron core is connected with the coupling part of yoke; Magnetic conduction sheet is relative with the magnetic conduction part of yoke, and is provided with certain gap between the bottom of magnetic conduction sheet and yoke coupling part; Magnet steel is contained between the magnetic conduction part of magnetic conduction sheet and yoke; Described armature is placed in the top of magnetic conduction sheet, makes armature can take the top of magnetic conduction sheet and is rotated as rotating shaft; The two ends of armature are relative with the pole-face part of the pole-face of iron core and yoke respectively, so that during the armature rotation, the two ends of armature can and rely between the pole-face part of yoke at the pole-face that relies on iron core and replace switching.
The top of described magnetic conduction sheet is provided with the card convex raised up, armature is provided with the recessed draw-in groove of along continuous straight runs, the armature draw-in groove is engaged in the card convex at top of magnetic conduction sheet, makes armature be placed in the top of magnetic conduction sheet, and makes armature can take the top of magnetic conduction sheet to be rotated as rotating shaft.
The upper end of described yoke is provided with kink, and described kink forms the pole-face part of described yoke.
Described yoke is Z-type.
The two sides of described magnet steel partly contact with the magnetic conduction of magnetic conduction sheet, yoke respectively.
The two sides of described magnet steel partly are provided with preset gap with the magnetic conduction of magnetic conduction sheet, yoke respectively.
One side of described magnet steel partly contacts with the magnetic conduction of magnetic conduction sheet or yoke, and the another side of magnet steel is provided with preset gap with magnetic conduction part or the magnetic conduction sheet of yoke.
A kind of clapper-type double magnetic circuit magnetic latching relay of the present invention, the magnetic force that magnet steel produces is mainly through two magnetic loops: first magnetic loop is from the N utmost point of magnet steel, through the air gap (hereinafter to be referred as the first working gas gap) between magnetic conduction sheet, armature, armature and iron core pole-face, iron core, the coupling part of yoke, the magnetic conduction part of yoke, get back to the S utmost point of magnet steel; Second magnetic loop be from the N utmost point of magnet steel, through the pole-face of the air gap (hereinafter to be referred as the second working gas gap) between magnetic conduction sheet, armature, armature and yoke pole-face, yoke partly, the magnetic conduction part of yoke, get back to the S utmost point of magnet steel.Owing between magnetic conduction sheet and yoke coupling part, being preset with the gap much larger than working gas gap, so the magnetic force that magnet steel produces seldom can be by forming loop herein.
Relay is when release condition, and armature is near there being larger air gap between an end of iron core and iron core, so first magnetic loop magnetic resistance is larger, magnetic force a little less than; And second magnetic loop be in closure state, magnetic force is strong, so relay can maintain release condition.
During to relay set, to coil, apply a pulse voltage, the magnetic force of generation forms loop by iron core, yoke, armature and the first working gas gap, and identical with the magnetic direction of magnet steel, and an end of armature is inhaled to the pole-face to iron core.And second magnetic loop strengthens due to the second working gas gap, magnetic resistance strengthens, and magnetic force weakens.After the pole-face closure of armature near an end of iron core and iron core, first magnetic loop magnetic circuit is strong, after the removal coil activation voltage, still can continue to maintain closure state.
When relay is resetted, apply a reverse pulse voltage to coil, the magnetic force of generation forms loop by iron core, yoke, armature and the first working gas gap, and contrary with the magnetic direction of magnet steel, offset the magnetic force of magnet steel, armature discharges under the effect of spring force.After the pole-face part closure of the other end that is released into armature and yoke, the magnetic force of second magnetic circuit strengthens makes relay can maintain release condition.
The invention has the beneficial effects as follows:
Owing to having adopted, magnetic conduction sheet is located between coil and yoke, relative with the magnetic conduction part of yoke, and be provided with certain gap between the bottom of magnetic conduction sheet and yoke coupling part; Magnet steel is contained between the magnetic conduction part of magnetic conduction sheet and yoke; And described armature is placed in the top of magnetic conduction sheet, makes armature can take the top of magnetic conduction sheet and rotated as rotating shaft; The two ends of armature are relative with the pole-face part of the pole-face of iron core and yoke respectively, so that during the armature rotation, the two ends of armature can and rely between the pole-face part of yoke at the pole-face that relies on iron core and replace switching.This structure can make its set and reset mode almost symmetry in the asymmetric situation of magnetic circuit, thereby has realized that balanced type magnetic keeps the electromagnetic relay magnetic structure.
Below in conjunction with drawings and Examples, the present invention is described in further detail; But a kind of clapper-type double magnetic circuit magnetic latching relay of the present invention is not limited to embodiment.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of clapper-type magnetic latching relay of prior art;
Fig. 2 structural representation of the present invention;
Fig. 3 is the D structure schematic diagram of magnetic circuit part of the present invention;
Fig. 4 is D structure (the rotating an angle) schematic diagram of magnetic circuit part of the present invention;
Fig. 5 is the structural representation of magnetic circuit part of the present invention;
Fig. 6 is the D structure schematic diagram of the yoke of magnetic circuit part of the present invention;
Fig. 7 is the structural representation of magnetic circuit part of the present invention under reset mode;
Fig. 8 is the structural representation of magnetic circuit part of the present invention while applying set voltage;
Fig. 9 is the structural representation of magnetic circuit part of the present invention under SM set mode;
Figure 10 is the structural representation of magnetic circuit part of the present invention while applying resetting voltage.
Embodiment
Embodiment, referring to shown in Fig. 2 to Fig. 6, a kind of clapper-type double magnetic circuit magnetic latching relay of the present invention, comprise moving spring part, quiet spring part and magnetic circuit part; Moving spring part comprises movable contact spring 11 and moving contact 12, and quiet spring part comprises quiet spring 21 and fixed contact 22, and described magnetic circuit part comprises iron core 31, armature 32, yoke 33, magnet steel 34, magnetic conduction sheet 35 and coil 36; Yoke 33 comprises pole-face part 331, magnetic conduction part 332 and the coupling part 333 sequentially joined, and pole-face part 331, magnetic conduction part 332 and coupling part 333 are integrative-structures; Iron core 31 is arranged in the hole of bobbin of coil, and the upper end of iron core 31 is made as pole-face, and the lower end of iron core 31 is connected with the coupling part of yoke 333; Magnetic conduction sheet 35 is relative with the magnetic conduction part 332 of yoke, and is provided with certain gap 30 between the bottom of magnetic conduction sheet and yoke coupling part; Magnet steel 34 is contained between the magnetic conduction part 332 of magnetic conduction sheet 35 and yoke; Described armature 32 is placed in the top of magnetic conduction sheet 35, makes armature 32 can take the top of magnetic conduction sheet 35 and is rotated as rotating shaft; The two ends of armature 32 are relative with the pole-face part 331 of the pole-face of iron core 31 and yoke respectively, so that armature 32 is while rotating, the two ends of armature 32 can and rely between the pole-face part 331 of yoke at the pole-face that relies on iron core 31 and replace switching, when to be armature 32 rotate towards iron core 31 directions, an end of armature 32 can with the pole-face closure of iron core 31; When armature 32 rotates towards other direction, the other end of armature 32 can with pole-face part 331 closures of yoke.
Wherein,
In the present embodiment, the both sides at the top of described magnetic conduction sheet 35 are respectively equipped with the card convex 351 raised up, the both sides of armature 32 are provided with the recessed draw-in groove of along continuous straight runs 321, described armature 32 is taken the top that is placed on magnetic conduction sheet 35, the draw-in groove 321 of armature 32 both sides is engaged in respectively in two card convexs 351 at top of magnetic conduction sheet, make armature 32 be placed in the top of magnetic conduction sheet 35, and make armature 32 can take the top of magnetic conduction sheet 35 to be rotated as rotating shaft.
The upper end of described yoke is provided with kink, and described kink forms the pole-face part 331 of described yoke.
Described yoke is Z-type.
Between magnet steel 34 and magnetic conduction sheet 35, and, between the magnetic conduction part 332 of magnet steel 34 and yoke, can be both to contact, can be also not contact; Such as, can be that the two sides of described magnet steel partly contact with the magnetic conduction of magnetic conduction sheet, yoke respectively; Can be also that the two sides of described magnet steel partly are provided with preset gap with the magnetic conduction of magnetic conduction sheet, yoke respectively; Can also be, one side of described magnet steel contacts with magnetic conduction sheet, and the another side of magnet steel partly is provided with preset gap with the magnetic conduction of yoke, or, one side of described magnet steel partly contacts with the magnetic conduction of yoke, and the another side of magnet steel is provided with preset gap with magnetic conduction sheet.
Referring to shown in Fig. 7 to Figure 10, a kind of clapper-type double magnetic circuit magnetic latching relay of the present invention, the magnetic force that magnet steel produces is mainly through two magnetic loops: first magnetic loop A1 is from the N utmost point of magnet steel 34, through the air gap (hereinafter to be referred as the first working gas gap) between magnetic conduction sheet 35, armature 32, armature and iron core pole-face, iron core 31, the coupling part 333 of yoke, the magnetic conduction part 332 of yoke, get back to the S utmost point of magnet steel 34; Second magnetic loop A2, from the N utmost point of magnet steel 34, through the air gap (hereinafter to be referred as the second working gas gap) between magnetic conduction sheet 35, armature 32, armature and yoke pole-face, the pole-face part 331 of yoke, the magnetic conduction part 332 of yoke, gets back to the S utmost point of magnet steel 34.Owing between magnetic conduction sheet and yoke coupling part, being preset with the gap much larger than working gas gap, so the magnetic force that magnet steel produces seldom can be by forming loop herein.
As shown in Figure 7, relay is when release condition (being reset mode), and armature 32 is near an end of iron cores and the larger air gap of 31 existence of iron core, so first magnetic loop A1 magnetic resistance is larger, magnetic force a little less than; And second magnetic loop A2 be in closure state, magnetic force is strong, so relay can maintain release condition.
As shown in Figure 8, during to relay set, to coil, apply a pulse voltage, the magnetic force of generation (magnetic loop A3) forms loop by iron core, yoke, armature and the first working gas gap, and identical with the magnetic direction of magnet steel 34, an end of armature 32 is inhaled to the pole-face to iron core 31.Second magnetic loop A2 is because the second working gas gap strengthens, and magnetic resistance strengthens, and magnetic force weakens.As shown in Figure 9, after the armature 32 pole-face closure near an end of iron cores and iron core 31, first magnetic loop A1 magnetic circuit is strong, after the removal coil activation voltage, still can continue to maintain closure state.
As shown in figure 10, when relay is resetted, apply a reverse pulse voltage to coil, the magnetic force (magnetic loop A4) produced forms loop by iron core, yoke, armature and the first working gas gap, contrary with the magnetic direction of magnet steel 34, offset the magnetic force of magnet steel 34 at first magnetic loop A1, armature 32 discharges under the effect of spring force.After the pole-face part closure of the other end that is released into armature 32 and yoke, the magnetic force of second magnetic circuit A2 strengthens makes relay can maintain release condition, as shown in Figure 7.
This structure of the present invention can make its set and reset mode almost symmetry in the asymmetric situation of magnetic circuit, thereby has realized that balanced type magnetic keeps the electromagnetic relay magnetic structure.
Above-described embodiment only is used for further illustrating a kind of clapper-type double magnetic circuit magnetic latching relay of the present invention; but the present invention is not limited to embodiment; any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all fall in the protection range of technical solution of the present invention.

Claims (7)

1. a clapper-type double magnetic circuit magnetic latching relay, comprise magnetic circuit part; Described magnetic circuit part comprises iron core, armature, yoke, magnet steel, magnetic conduction sheet and coil; Yoke comprises pole-face part, magnetic conduction part and the coupling part sequentially joined; Iron core is arranged in the hole of bobbin of coil, and the upper end of iron core is made as pole-face, and the lower end of iron core is connected with the coupling part of yoke; It is characterized in that: magnetic conduction sheet is relative with the magnetic conduction part of yoke, and is provided with certain gap between the bottom of magnetic conduction sheet and yoke coupling part; Magnet steel is contained between the magnetic conduction part of magnetic conduction sheet and yoke; Described armature is placed in the top of magnetic conduction sheet, makes armature can take the top of magnetic conduction sheet and is rotated as rotating shaft; The two ends of armature are relative with the pole-face part of the pole-face of iron core and yoke respectively, so that during the armature rotation, the two ends of armature can and rely between the pole-face part of yoke at the pole-face that relies on iron core and replace switching.
2. clapper-type double magnetic circuit magnetic latching relay according to claim 1, it is characterized in that: the top of described magnetic conduction sheet is provided with the card convex raised up, armature is provided with the recessed draw-in groove of along continuous straight runs, the armature draw-in groove is engaged in the card convex at top of magnetic conduction sheet, make armature be placed in the top of magnetic conduction sheet, and make armature can take the top of magnetic conduction sheet to be rotated as rotating shaft.
3. clapper-type double magnetic circuit magnetic latching relay according to claim 1 and 2, it is characterized in that: the upper end of described yoke is provided with kink, and described kink forms the pole-face part of described yoke.
4. clapper-type double magnetic circuit magnetic latching relay according to claim 3, it is characterized in that: described yoke is Z-type.
5. clapper-type double magnetic circuit magnetic latching relay according to claim 1, it is characterized in that: the two sides of described magnet steel partly contact with the magnetic conduction of magnetic conduction sheet, yoke respectively.
6. clapper-type double magnetic circuit magnetic latching relay according to claim 1, it is characterized in that: the two sides of described magnet steel partly are provided with preset gap with the magnetic conduction of magnetic conduction sheet, yoke respectively.
7. clapper-type double magnetic circuit magnetic latching relay according to claim 1, it is characterized in that: a side of described magnet steel partly contacts with the magnetic conduction of magnetic conduction sheet or yoke, and the another side of magnet steel is provided with preset gap with magnetic conduction part or the magnetic conduction sheet of yoke.
CN201310378565.9A 2013-08-27 2013-08-27 A kind of Clapper-type double-magnetic circuit magnetic latching relay Active CN103489717B (en)

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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN105023810A (en) * 2015-08-05 2015-11-04 哈尔滨工业大学 Bi-stable clapping electromagnetic relay with permanent magnet
CN105185659A (en) * 2015-08-05 2015-12-23 哈尔滨工业大学 Permanent-magnet-contained monostable clapper type electromagnetic relay
CN105321769A (en) * 2014-06-06 2016-02-10 松下知识产权经营株式会社 Switch device and load control system
CN106057583A (en) * 2016-07-20 2016-10-26 时代大陆机电科技(大连)有限公司 Holding-type electromagnetic relay coil assembly
CN106328446A (en) * 2016-08-31 2017-01-11 长沙中坤电气科技股份有限公司 Magnetic latching relay, magnetic circuit structure and work method thereof
CN105161371B (en) * 2015-08-05 2018-04-03 哈尔滨工业大学 A kind of band permanent magnetism monostable clapper-type electromagnetic relay
CN110853946A (en) * 2019-11-06 2020-02-28 西安交通大学 Double-magnetic-circuit direct-acting low-power-consumption permanent magnet brake-separating power-assisted electromagnetic mechanism
CN112614745A (en) * 2020-12-31 2021-04-06 华中科技大学 Rotary electromagnetic relay suitable for magnetic field environment

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CN102163519A (en) * 2011-04-23 2011-08-24 哈斯科继电器和电子元件国际有限公司 High-power automatic reset magnetic latching relay
CN102881520A (en) * 2012-09-21 2013-01-16 郏威栋 Magnetic latching bistable state mechanism for clapper type relay
CN203445069U (en) * 2013-08-27 2014-02-19 厦门宏发电声股份有限公司 Clapper-type double magnetic circuit magnetic latching relay

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WO2011072593A1 (en) * 2009-12-17 2011-06-23 厦门宏发电声股份有限公司 Magnet holding relay with improved magnetic path structure
CN102163519A (en) * 2011-04-23 2011-08-24 哈斯科继电器和电子元件国际有限公司 High-power automatic reset magnetic latching relay
CN102881520A (en) * 2012-09-21 2013-01-16 郏威栋 Magnetic latching bistable state mechanism for clapper type relay
CN203445069U (en) * 2013-08-27 2014-02-19 厦门宏发电声股份有限公司 Clapper-type double magnetic circuit magnetic latching relay

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105321769B (en) * 2014-06-06 2018-07-20 松下知识产权经营株式会社 Switching device and load control system
CN105321769A (en) * 2014-06-06 2016-02-10 松下知识产权经营株式会社 Switch device and load control system
CN105023810A (en) * 2015-08-05 2015-11-04 哈尔滨工业大学 Bi-stable clapping electromagnetic relay with permanent magnet
CN105185659B (en) * 2015-08-05 2017-08-22 哈尔滨工业大学 A kind of band permanent magnetism monostable clapper-type electromagnetic relay
CN105161371B (en) * 2015-08-05 2018-04-03 哈尔滨工业大学 A kind of band permanent magnetism monostable clapper-type electromagnetic relay
CN105185659A (en) * 2015-08-05 2015-12-23 哈尔滨工业大学 Permanent-magnet-contained monostable clapper type electromagnetic relay
CN106057583A (en) * 2016-07-20 2016-10-26 时代大陆机电科技(大连)有限公司 Holding-type electromagnetic relay coil assembly
CN106328446A (en) * 2016-08-31 2017-01-11 长沙中坤电气科技股份有限公司 Magnetic latching relay, magnetic circuit structure and work method thereof
CN110853946A (en) * 2019-11-06 2020-02-28 西安交通大学 Double-magnetic-circuit direct-acting low-power-consumption permanent magnet brake-separating power-assisted electromagnetic mechanism
CN112614745A (en) * 2020-12-31 2021-04-06 华中科技大学 Rotary electromagnetic relay suitable for magnetic field environment

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