CN102903574B - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- CN102903574B CN102903574B CN201210262460.2A CN201210262460A CN102903574B CN 102903574 B CN102903574 B CN 102903574B CN 201210262460 A CN201210262460 A CN 201210262460A CN 102903574 B CN102903574 B CN 102903574B
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- CN
- China
- Prior art keywords
- armature
- contact
- connector
- electromagnet
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/34—Contacts characterised by the manner in which co-operating contacts engage by abutting with provision for adjusting position of contact relative to its co-operating contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/641—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement
- H01H50/642—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rectilinear movement intermediate part being generally a slide plate, e.g. a card
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0075—Apparatus or processes specially adapted for the manufacture of electric switches calibrating mechanical switching properties, e.g. "snap or switch moment", by mechanically deforming a part of the switch, e.g. elongating a blade spring by puncturing it with a laser
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/22—Polarised relays
- H01H51/2272—Polarised relays comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnets (AREA)
- Telephone Set Structure (AREA)
Abstract
A kind of electromagnetic relay, it comprises: electromagnet; Armature, by the magnetic drive of this electromagnet, and is configured to rotate relative to this electromagnet; Sheet, it is configured to the Linear-moving when being pressed by this armature; Armature contact, it moves together with this sheet; Fixed contact, armature contact contacts in response to the rotation of armature with this fixed contact or disengages; And housing, it is for holding this electromagnet, this armature, this sheet, this armature contact and this fixed contact, and this electromagnet and fixed contact are fixed to housing.This armature comprises at least one armature member be made up of magnetic material and the connector be made up of plastic deformable material, and this connector is arranged between armature member and sheet.
Description
Technical field
The present invention relates to a kind of electromagnetic relay.
Background technology
Routinely, available such electromagnetic relay, it is via using the magnetic force of electromagnet, is brought to by armature contact to contact with fixed contact or disengage (see such as H4-24242 Japanese utility model application open file) by driving the armature that is connected to armature contact rotatably.
About the electromagnetic relay of this type, there will be a known the electromagnetic relay such as shown in Fig. 3.
Now in detail the electromagnetic relay shown in Fig. 3 will be described.Electromagnetic relay shown in Fig. 3 comprises electromagnet 1, the armature 2 driven rotatably by the magnetic force of this electromagnet 1 and the housing 3 for holding this electromagnet 1 and this armature 2.Electromagnet 1 is fixed to housing 3.In explanation hereafter, upside, downside, left side and right side will be defined based on Fig. 3.The front side of the drawing in Fig. 3 will be called " front side ".But these directions only limit for convenience of description, and the direction under the condition of actual use may do not met.
Housing 3 comprises body 31 and lid (not shown), and this body 31 has the storage recess 30 that front side is opened, and this lid is attached to the front side of body 31, to close this storage recess 30.
Supporter 4 for supporting armature 2 rotatably relative to housing 3 is fixed to housing 3.This supporter 4 comprises flat fixed portion 41 and cylinder axis part 42, the thickness direction of this standing part 41 extends in the longitudinal direction, and the left and right end portions of this standing part 41 is divided and is fixed to body 31, and this cylinder axis part is given prominence to forward from the central area of the front surface of this standing part 41.The axial direction of shaft portion 42 extends in the longitudinal direction.About the method for this standing part 41 being fixed to body 31, can use and such as coordinate the mode that (fitting) etc. is known.Armature 2 has the dead eye 20 of circular cross-section.This dead eye 20 extends through armature 2 in the longitudinal direction.The internal diameter of this dead eye 20 is slightly larger than the external diameter of shaft portion 42.Shaft portion 42 inserts in dead eye 20, and armature 2 is supported relative to housing 3 thus, rotates with the central axis around shaft portion 42.
Electromagnet 1 comprises coil (not shown) and pole piece 11, and this coil is fixed to body 31 at the rear side place of standing part 41, and its axial direction is extended in the vertical direction, and this pole piece 11 is made up of magnetic material, and by coil magnetizing.Pole piece 11 comprises body part (not shown) and variable magnetic pole part 11a, and this body part extends through coil in the vertical direction, and this variable magnetic pole part 11a gives prominence to forward from the top and bottom of this body part.Thus, pole piece 11 has substantially U-shaped shape as a whole.More specifically, depend on the flow direction of the electric current being supplied to coil, variable magnetic pole part 11a is geomagnetic into opposed polarity.The polarity of variable magnetic pole part 11a is mutually different.Multiple (in Fig. 3 being three) coil terminals 60 remains in housing 3.Coil terminals 60 is electrically connected to coil in its one end.The other end of coil terminals 60 is given prominence to towards the left side of housing 3.Electric current is sent to coil by coil terminals 60.More specifically, the electromagnetic relay shown in Fig. 3 is so-called twin coil latching-type.Coil is provided with tap.Coil terminals 60 is electrically connected to opposite end and the tap of coil.
Armature 2 comprises the two couples of fixed magnetic pole part 21a being separately positioned on its upper part and end portion.Each between often couple of fixed magnetic pole part 21a in variable magnetic pole part 11a.In often couple of fixed magnetic pole part 21a, the fixed magnetic pole part 21a be present on the left of variable magnetic pole part 11a is geomagnetic into opposed polarity with the fixed magnetic pole part 21a be present on the right side of variable magnetic pole part 11a.More specifically, armature 2 comprises two permanent magnets, 22, two armature member 21 and molding synthetic resin body 23, the N pole of these two permanent magnets 22 is towards identical left or right direction, these two armature member 21 are made up of magnetic material, and this permanent magnet 22 is insert molded together with this molding synthetic resin body 23 with this armature member 21.Each in armature 21 has flat rectangular shape.The each each magnetic pole of an equal magnetic attachment in surface in permanent magnet 22 at thickness direction in armature member 21.Each opposite ends in armature member 21 is prominent up and down, and to exceed in permanent magnet 22 each, and this opposite ends serves as fixed magnetic pole part 21a.If electric current supply is to the coil of electromagnet 1, then, depend on the direction of electric current flowing through coil, of being present in the corresponding left side of variable magnetic pole part 11a and the fixed magnetic pole part 21a on right side is attracted to corresponding variable magnetic pole part 11a, thus, armature 2 rotates relative to housing 3.Once electric current supply is to coil, the position (and position of the armature contact 51 of movement together with armature 2) of armature 2 is just maintained (locking) by the magnetic force of permanent magnet 22, until electric current flowing through coil in backward direction.
The armature contact 51 of movement together with the rotation of armature 2, and be housed inside in housing 3 with the fixed contact 52 that this armature contact 51 contacts or disengages.Armature contact 51 and fixed contact 52 are electrically connected to terminal board 61 and 62 respectively.In other words, contacting or disengaging along with armature contact 51 and fixed contact 52, the electrical connection between terminal board 61 and 62 is switched on or cuts off.Each metallic plate extended in the lateral direction by its thickness direction in terminal board 61 and 62 is formed.Each in terminal board 61 and 62 is fixed to housing 3 with this pattern, that is, its upper part projects to outside housing 3.Armature contact 51 is electrically connected by contact keeper 7 and is mechanically attached to terminal board 61.The end portion of this contact keeper 7 is fixed to the right surface of terminal board 61, and the upper part elastically deformable of this contact keeper 7, with the dislocation in the lateral direction of the end portion relative to contact keeper 7.Contact keeper 7 comprises multiple contacts keep-spring 71, and each leaf spring by extending in the vertical direction in the plurality of contact keep-spring 71 is formed.Contact keep-spring 71 superposes in a thickness direction, and part and end portion be combined with each other at its upper end.Armature contact 51 is fixed to the upper part of contact keeper 7, thus armature contact 51 can in the left side of fixed contact 52 relative to housing 3 flexibly dislocation in the lateral direction.
Armature 2 and armature contact 51 by be connected to contact keeper 7 and armature 2 sheet 8 and together with move.This sheet 8 is as a whole in flat, and its thickness direction extends in the vertical direction.Sheet 8 is guided by the inner surface of housing 3, thus sheet 8 can move in the lateral direction relative to housing 3.The terminal board 61 being connected to armature contact 51 is configured as does not interfere with the mobile route of sheet 8, thus terminal board 61 should not the dislocation of barrier sheet 8.By the upper part of the right armature member 21 by armature 2 insert sheet 8 armature recess 81(its upwards, downwards with to front opening) in, armature 2 and sheet 8 are interconnected.By the upper part of contact keeper 7 is inserted sheet 8 keeper recess (not shown, its upwards, downwards with to front opening) in, contact keeper 7 and sheet 8 are interconnected.In the upper part of leftmost in contact keep-spring 71, be provided with flexure strip contact portion 72, this flexure strip contact portion 72 contacts with the inner surface towards the right side of keeper recess.Flexure strip contact portion 72 tilts, to extend gradually away from remaining contact keep-spring 71.
Under the state (hereinafter referred to as " closure state ") that armature 2 dextrorotation goes to moving range boundary (armature contact 51 contacts with fixed contact 52), due to the strain of flexure strip contact portion 72, between armature contact 51 and fixed contact 52, produce contact.
Under state as shown in Figure 3, armature 2 is rotated counterclockwise under the state (hereinafter referred to as " off-state ") of moving range boundary (armature contact 51 keeps disengaging with fixed contact 52), contact keeper 7 strain as a whole, thus its upper part is relative to end portion dislocation left.Now, the spring force of contact keeper 7 plays the effect be biased towards fixed contact 52 by armature contact 51.In other words, along with strain quantitative change is large, the current minimum (hereinafter referred to as " minimal turn-on electric current ") flowing through the coil of electromagnet 1 be converted to needed for closure state diminishes.
In this, about the method for adjustment operation characteristic quantity (contact under such as minimal turn-on electric current or closure state), the method being connected to the part plastic deformation of sheet 8 using armature 2 can be considered.
But in example illustrated above, the part being connected to sheet 8 of armature 2 is armature member 21.This armature member 21 is formed as relatively thick, fully to increase magnetic force.Therefore, by using method adjustment operation characteristic quantity mentioned above to be quite difficult.
Summary of the invention
In view of above, the invention provides a kind of electromagnetic relay, its operating characteristics amount can easily regulate.
According to an aspect of the present invention, provide a kind of electromagnetic relay, it comprises: electromagnet; Armature, it by the magnetic drive of this electromagnet, and is configured to rotate relative to this electromagnet; Sheet, it is configured to the Linear-moving when being pressed by this armature; Armature contact, it moves together with this sheet; Fixed contact, armature contact contacts in response to the rotation of armature with this fixed contact or disengages; And housing, it is for holding this electromagnet, this armature, this sheet, this armature contact and this fixed contact, this electromagnet and fixed contact are fixed to housing, wherein, this armature comprises at least one armature member be made up of magnetic material and the connector be made up of plastic deformable material, and this connector is arranged between armature member and sheet.
Preferably, by armature and the contact position of sheet and the interconnective line of the rotation of the armature formation angle, dislocation direction relative to this sheet, this connector can bend to, and makes, when looking from the direction of the rotation being parallel to this armature, this angle becomes closer to right angle.
Preferably, this connector can be made up of nonmagnetic substance.
In the present embodiment, adjustment operation characteristic quantity can be carried out by making connector plastic deformation, do not require that this connector is magnetic, and this connector be more yielding than armature member.Therefore, compared with situation about directly contacting with armature member and sheet, easily regulate the operating characteristics amount of electromagnetic relay.
Accompanying drawing explanation
Fig. 1 shows the front view of electromagnetic relay according to an embodiment of the invention, wherein for clear and remove lid.
Fig. 2 shows the front view of the comparative example of this electromagnetic relay, wherein for clear and remove lid.
Fig. 3 shows the front view of conventional electromagnetic relay, wherein for clear and remove lid.
Embodiment
With reference to the accompanying drawing forming a part herein, describe a preferred embodiment of the present invention in detail.
The base configuration of the present embodiment is basic identical with the example shown in Fig. 3.Common parts will be no longer described.
In the present embodiment, as shown in fig. 1, armature 2 comprises and is connected to right armature member 21 and the upwards prominent connector 24 exceeding this right armature member 21.This connector 24 inserts in the armature recess 81 of sheet 8.Connector 24 is made up of plastic deformable material.Connector 24 is formed as flat pattern, to have the thickness less than the thickness of armature member 21.The thickness direction of connector 24 is orthogonal with the rotation of armature 2.
About the method for connector 24 and armature member 21 being bonded together, the mode of known such as filleting, cooperation or welding suitably can be used.About the material of connector 24, preferably use nonmagnetic substance, such as aluminium.
Use structure mentioned above, be less than armature member 21 by making thickness and than the plastic deformation of armature member 21 more yielding connector 24, the operating characteristics amount of electromagnetic relay can be regulated.Therefore, compared with the situation inserting the armature recess 81 of sheet 8 with armature member 21, adjustment operation characteristic quantity is easier to.
Such as, if connector 24 is bending to move right moving plate 8(namely, if the upper part of connector 24 is relative to its end portion dislocation to the right), then the distortion quantitative change of flexure strip contact portion 72 is large in closed state.This makes it possible to obtain the contact increased.On the other hand, contact keeper 7 deflection as a whole diminishes in the on-state.Thus, minimal turn-on electric current uprises.
On the contrary, if connector 24 is bending to be moved to the left sheet 8(namely, if the upper part of connector 24 is relative to its end portion dislocation left), then the deflection of flexure strip contact portion 72 diminishes in closed state.This makes it possible to reduce contact.On the other hand, contact keeper 7 distortion quantitative change is as a whole large in the on-state.Thus, minimal turn-on electric current step-down.
By armature 2(connector 24) with the contact position of sheet 8 and the interconnective line of rotation of the armature 2 formation angle, dislocation direction (hereinafter referred to as " driving angle ") relative to sheet 8, when from front side, namely look on the direction of rotation being parallel to armature 2, if the difference between right angle (90 degree) and this angle becomes large, then the component (its thrust as pressing tablet 8 up or down and work) of the revolving force of armature 2 becomes greatly.If this component becomes large, then the frictional force acted between connector 24 and sheet 8 or between the inner surface of sheet 8 and housing 3 becomes large.This also increases the actuating force (inputing to the electrical power of electromagnet 1) needed for on-off state of double-throw contact.
In example shown in Figure 1, connector 24 is bending to guarantee to drive nearly 90 degree of corner connection.More specifically, rotation (namely the central axis of shaft portion 42) due to armature 2 is positioned at the left side of the moving range of armature recess 81, connector 24 bends to the shape of similar S substantially, thus its end portion be present near sheet 8 can be positioned at the left side of the end portion be present near armature member 21.Therefore, compared with the unbending situation of connector 24 as shown in Figure 2, the frictional force acted between connector 24 and sheet 8 or between the inner surface of sheet 8 and housing 3 can be reduced.This makes it possible to reduce the electrical power required when open and close contact.
Substitute as above set forth by connector 24 and armature member 21 and sheet 8 direct contiguously, additional component can be arranged between connector 24 and sheet 8 or between armature member 21 and connector 24.
Although show and describe the present invention with regard to this embodiment, the present invention is not limited to this.It will be understood by those of skill in the art that not departing from by under claim limited range subsequently, can make a variety of changes and revise.
Claims (2)
1. an electromagnetic relay, comprising:
Electromagnet;
Armature, by the magnetic drive of described electromagnet, and is configured to rotate relative to described electromagnet;
Sheet, it is configured to the Linear-moving when being pressed by described armature;
Armature contact, it moves together with described;
Fixed contact, described armature contact contacts in response to the rotation of described armature with described fixed contact or disengages; And
Housing, it is for holding described electromagnet, described armature, described, described armature contact and described fixed contact, and described electromagnet and described fixed contact are fixed to described housing,
Wherein, described armature comprises at least one armature member of being made up of magnetic material and is made up of plastic deformable material and the connector engaged with armature member, and described connector is arranged between described armature member and described,
Wherein said connector is more yielding than described armature member, and
By described armature and the contact position of described and the dislocation direction formation angle of the interconnective line of rotation relative to described of described armature, described connector bends to, make, when looking from the direction of the rotation being parallel to described armature, described angle becomes closer to right angle.
2. relay according to claim 1, is characterized in that, described connector is made up of nonmagnetic substance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011164191A JP5821030B2 (en) | 2011-07-27 | 2011-07-27 | Electromagnetic relay |
| JP164191/2011 | 2011-07-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102903574A CN102903574A (en) | 2013-01-30 |
| CN102903574B true CN102903574B (en) | 2016-04-27 |
Family
ID=46650361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210262460.2A Active CN102903574B (en) | 2011-07-27 | 2012-07-26 | Electromagnetic relay |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2551870B1 (en) |
| JP (1) | JP5821030B2 (en) |
| CN (1) | CN102903574B (en) |
| ES (1) | ES2445806T3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2511569B (en) | 2013-03-08 | 2015-05-06 | Christopher John Stanton | Improved switch and associated methods |
| CN103681116A (en) * | 2013-12-18 | 2014-03-26 | 周灵通 | Small large-power magnetic latching relay |
| JP6655792B2 (en) * | 2014-05-12 | 2020-02-26 | パナソニックＩｐマネジメント株式会社 | Contact device |
| JP6406596B2 (en) * | 2014-05-12 | 2018-10-17 | パナソニックＩｐマネジメント株式会社 | Contact device |
| CN104037026B (en) * | 2014-06-30 | 2016-05-04 | 惠州亿纬锂能股份有限公司 | A kind of magnetic latching relay |
| CN105161368A (en) * | 2015-09-22 | 2015-12-16 | 林勇 | Spring-type magnetic holding relay |
| CN106024523B (en) * | 2016-07-30 | 2018-07-31 | 永春康馨专利技术服务有限公司 | Power relay control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009665A2 (en) * | 2007-06-26 | 2008-12-31 | Gruner AG | Bipolar relay |
| US20090033447A1 (en) * | 2007-08-01 | 2009-02-05 | Clodi, L.L.C. | Electromagnetic relay assembly |
| CN101763985A (en) * | 2008-12-25 | 2010-06-30 | 东莞市三友联众电器有限公司 | Equidirectional dual-thrust electromagnetic relay |
| WO2011028250A1 (en) * | 2009-08-27 | 2011-03-10 | Tyco Electronics Corporation | Electrical switching devices having moveable terminals |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2547131A (en) * | 1949-12-30 | 1951-04-03 | Lewus Alexander Jay | Electromagnetic relay |
| JPS5443537U (en) * | 1977-09-02 | 1979-03-24 | ||
| JPS6416044U (en) * | 1987-07-17 | 1989-01-26 | ||
| JPH0424242U (en) | 1990-06-20 | 1992-02-27 | ||
| JPH07506696A (en) * | 1992-05-15 | 1995-07-20 | シーメンス アクチエンゲゼルシヤフト | polarized power relay |
| JP4023052B2 (en) * | 1999-11-12 | 2007-12-19 | 松下電工株式会社 | Electromagnetic relay |
| JP3876576B2 (en) * | 1999-10-26 | 2007-01-31 | 松下電工株式会社 | Electromagnetic relay |
| US7705700B2 (en) * | 2007-12-17 | 2010-04-27 | Tyco Electronics Corporation | Relay with overtravel adjustment |
| KR101313676B1 (en) * | 2009-02-04 | 2013-10-02 | 클로디 엘엘씨 | Electromagnetic relay assembly |
| CN101984504B (en) * | 2010-09-06 | 2012-11-14 | 厦门宏发电力电器有限公司 | Magnetic latching relay with double flexible pushing connections |
| JP2013030308A (en) * | 2011-07-27 | 2013-02-07 | Panasonic Corp | Electromagnetic relay |
-
2011
- 2011-07-27 JP JP2011164191A patent/JP5821030B2/en active Active
-
2012
- 2012-07-09 EP EP20120175519 patent/EP2551870B1/en active Active
- 2012-07-09 ES ES12175519T patent/ES2445806T3/en active Active
- 2012-07-26 CN CN201210262460.2A patent/CN102903574B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2009665A2 (en) * | 2007-06-26 | 2008-12-31 | Gruner AG | Bipolar relay |
| US20090033447A1 (en) * | 2007-08-01 | 2009-02-05 | Clodi, L.L.C. | Electromagnetic relay assembly |
| CN101763985A (en) * | 2008-12-25 | 2010-06-30 | 东莞市三友联众电器有限公司 | Equidirectional dual-thrust electromagnetic relay |
| WO2011028250A1 (en) * | 2009-08-27 | 2011-03-10 | Tyco Electronics Corporation | Electrical switching devices having moveable terminals |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2551870A1 (en) | 2013-01-30 |
| JP2013030309A (en) | 2013-02-07 |
| CN102903574A (en) | 2013-01-30 |
| EP2551870B1 (en) | 2014-01-29 |
| JP5821030B2 (en) | 2015-11-24 |
| ES2445806T3 (en) | 2014-03-05 |
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Effective date of registration: 20151103 Address after: Osaka Japan Applicant after: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co.,Ltd. Address before: Osaka Japan Applicant before: Matsushita Electric Industrial Co.,Ltd. |
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