EP0222243A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0222243A1
EP0222243A1 EP86114899A EP86114899A EP0222243A1 EP 0222243 A1 EP0222243 A1 EP 0222243A1 EP 86114899 A EP86114899 A EP 86114899A EP 86114899 A EP86114899 A EP 86114899A EP 0222243 A1 EP0222243 A1 EP 0222243A1
Authority
EP
European Patent Office
Prior art keywords
connecting plate
contact spring
yoke
relay
coil
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.)
Granted
Application number
EP86114899A
Other languages
German (de)
English (en)
Other versions
EP0222243B1 (fr
Inventor
Fritz Ing. Hinrichs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0222243A1 publication Critical patent/EP0222243A1/fr
Application granted granted Critical
Publication of EP0222243B1 publication Critical patent/EP0222243B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/026—Details concerning isolation between driving and switching circuit

Definitions

  • the invention relates to an electromagnetic relay with a coil body, which carries an axially continuous core and a winding, an angular yoke, from which a longitudinal leg extends parallel to the coil axis, an angle armature mounted on the end edge of the yoke longitudinal leg, one essentially parallel to the yoke longitudinal leg and an armature longitudinal leg extending contact spring which cooperates with at least one mating contact element anchored in a front end of the coil body.
  • Such a relay is known for example from DE-OS 34 06 832.
  • the armature longitudinal leg with the contact spring actuated by it is arranged above the coil, so that the contact spring requires relatively long connecting lugs to the connection side of the relay, which in turn require corresponding insulation measures against the coil when switching higher voltages, which means additional space requirements.
  • a termination of the relay to the outside can only be made by an additional housing consisting of a base and a cap, which also increases the volume considerably.
  • a termination between the coil winding and the contact space should not be readily possible there, as should embedding the coil winding in casting compound, which would be desirable for insulation and heat dissipation in various applications.
  • the object of the invention is to provide a relay of the type mentioned using as few and simply designed parts as possible, in which good insulation between the functional parts, in particular between the winding and the contact elements, can be achieved with the smallest possible volume and at which, in particular, seals the contact space to the outside and towards the coil winding, as well as casting the coil without the use of specially shaped housing elements, such as a cap and base.
  • this object is achieved in that the yoke, the armature, the contact spring and the counter-contact element (s) are perpendicular to the connection plane of the relay with their main planes next to the coil winding, that the contact spring is connected to a connecting plate which, together with the yoke longitudinal leg, forms a channel for the anchor longitudinal leg and for the contact spring, that the connecting plate forms a side end wall of the relay, on the underside of which a connecting pin is formed, and that the coil body together with the connection plate forms the contours of a cuboid housing, a film glued over at least two sides of this housing covering the housing openings - with the exception of the connection side.
  • connection plate expediently has an L-shaped, preferably a U-shaped profile, the central part of which forms the lateral end wall of the relay and the film is placed over at least three sides of the housing.
  • the yoke longitudinal leg with the parallel parallel longitudinal arm leg and the contact spring is therefore not arranged above the coil, but next to it, with a connecting plate connected to the contact spring being a channel for the contact spring due to its U-shaped design forms a housing part, and is therefore not only vertical as a contact connection directly on the connection side of the relay, but also already defines the housing contours together with the coil former, without the need for a separate, separately shaped housing cap. Since the housing contours are already defined by the coil body together with the connection plate, a film simply wrapped around the open sides of the housing is sufficient as a conclusion. This film is much easier to manufacture and apply than a base with a housing cap and also has the significant advantage that it not only requires much less volume in terms of wall thickness than a specially shaped housing, but also eliminates the space normally present between the housing and the base body leaves.
  • the longitudinal yoke leg expediently extends over the entire height of the relay, the side parts of the connecting plate standing flush on its longitudinal edges.
  • the side legs of the connecting plate thus form with the yoke a continuous contact surface for the film to be glued on, and warts embossed on the yoke can serve as contact points for the side legs of the connecting plate in order to secure the latter against bending inwards.
  • a further safeguard against the connecting plate being pulled off the yoke can be provided, for example, by means of retaining tabs formed on the side parts of the connecting plate and encompassing the yoke.
  • the connecting plate can be manufactured separately from the contact spring and subsequently connected to it, preferably by welding.
  • a stiffer plate possibly with a different material composition, can be used for the connecting plate than for the contact spring.
  • the contact spring is formed in one piece with the connecting plate in a preferred embodiment.
  • the connecting plate can be connected to the contact spring by a hairpin-shaped bend.
  • the contact spring running within the U-shaped profile of the connecting plate can also be provided with laterally bent webs if an enlarged cross section is required to reduce the electrical resistance with a small thickness of the contact spring.
  • the contact spring is actuated within the channel formed by the connecting plate from the armature longitudinal leg.
  • an insulating film can be arranged between the two. In this case, however, it is more advantageous to use an insulating part which is molded onto the longitudinal arm of the armature or fitted thereon.
  • the relay shown in FIGS. 1 to 3 has a base body 1, which serves as a coil former and carries a winding 4 between the flanges 2 and 3.
  • a core 5 is pressed or injected into the coil former, which has a pole plate 6 in front of the coil flange 3 at its end 5a and is coupled with its end 5b to the cross leg 7a of an angular yoke 7.
  • the end 5b of the core 5 protrudes beyond the yoke leg 7a into a recess in the coil former 1 in order to give it greater strength.
  • the longitudinal leg 7b extends above the coil parallel to its axis up to the coil flange 3 and forms a bearing cutting edge there for an angle armature 8, which forms the working air gap with the pole plate 6 with its transverse leg 8a rend the narrow longitudinal leg 8b parallel to the yoke longitudinal leg 7b and at a short distance above it.
  • the coil former In front of the flange 2, the coil former has an extension 9, which forms a contact chamber 10. Two mating contact elements 11 and 12 are inserted into these.
  • the slots for the counter-contact elements are provided in a manner not shown with sealing lips, for example the slot for the counter-contact element 12 may be an elongated hole in the axial direction of the contact piece. In this way, the mating contact element 12 with its connecting part 12a can be displaced towards or away from the mating contact element 11 in order to set the contact distance.
  • a recess 13 in the base body is used to insert an adjusting tool.
  • This chamber 13 can later accommodate a getter body, for example.
  • a hairpin-shaped bent center contact spring 14 lies essentially parallel to the coil axis and to the longitudinal legs 7b and 8b of the yoke or the armature. In its area 14a it forms the actual spring section, the armature leg 8b engaging at a suitable point; the end 14b of the contact spring is bent and protrudes between the mating contact elements 11 and 12 to form a changeover contact.
  • a connecting plate 14c is integrally connected to the contact spring and extends parallel to this as well as to the longitudinal legs 7b and 8b of the yoke or the armature. Together with side parts 14d molded on both sides, this connecting plate forms with the yoke longitudinal leg 7b a channel 15 in which the armature leg 8b and the contact spring section 14a can move freely.
  • the yoke 7, the armature 8, the contact spring 14 with the connecting plate 14c are all on the basic level or to closing plane of the relay vertically, so that the connecting plate 14c forms a side end wall, on which a connecting pin 14e is directly formed downward.
  • this connection plate thus has a U-profile, which protects the contact spring leg 14a against mechanical interference from the outside and at the same time increases the cross section for the current supply.
  • Embossments 7c are formed on the yoke leg 7b, which guide the side legs 14d and secure them against inward displacement, so that the side legs 14d are each flush with the side surfaces of the yoke leg 7b.
  • lateral retaining tabs 14f are also formed on the connecting plate 14c, which grip around the yoke in the manner of spring clips.
  • All parts of the contact spring 14 with the one-piece connecting plate can be seen in the development of this part in Fig. 4.
  • the spring is first cut free in the contours, bent and folded along the bending zone 14g.
  • the contacting end 14b on the actual spring section 14a can be split in a known manner to form a double contact.
  • a rectangular piece is cut out of the profile of the contact spring 14 to form an armature return spring 14h and bent out.
  • additional side webs 14i are provided which are angled towards the yoke to such an extent that they do not abut the side parts 14d of the connecting plate 14c or the yoke leg 7b.
  • This bending of the side webs 14i can additionally influence the rigidity of the contact spring 14.
  • an actuating piece 16 made of plastic is molded onto or inserted into the armature, which insert into a cut-out recess 14k of the contact spring section 14a takes hold.
  • a film could also be introduced in a suitable manner between the armature leg 8b and the contact spring section 14a.
  • the coil body or base body 1 forms on its flanges 2 and 3 or on the extension 9 and together with the yoke leg 7b and the U-shaped connecting plate 14c the outer contours of a cuboid housing, in particular all housing corners being predetermined, while the intermediate wall parts provide the necessary openings have to introduce the functional elements of the relay.
  • the housing can then be closed by applying a film 17, this film 17 simply being placed on the specified contours of the base body 1 or of the connecting plate 14c and bent over the edges of the specified contours. Depending on how many openings are available for assembly in the base body, this film is placed over at least three, possibly also over five sides of the base body and glued or welded on.
  • the film 17 can be designed without a coating or as a two-layer film or can also be only partially coated with adhesive. Due to the design of the yoke 7 in connection with the coil flanges 2 and 3 and the connecting plate 14c, the contact chamber 10, which is in connection with the spring channel 15, is closed to the outside and to the coil space 18. The coil space 18 remains free on the connection side 19 of the relay, since the film 17 is not placed over this part. Thus, the coil space 18 can be filled from the connection side with potting compound, which increases the insulating ability of the relay, improves the heat dissipation of the coil and seals the contact space and the spring channel.
  • FIGS. 5 and 6 A somewhat modified embodiment of the relay according to FIGS. 1 to 3 is shown in FIGS. 5 and 6.
  • a contact spring 24 is used, which extends with its portion 24a approximately parallel to the armature leg 7b and with its contacting end 24b lies between the two mating contact elements 11 and 12.
  • a connecting plate 25 is not formed in one piece with the contact spring 24, but is separated and, if appropriate, made from a different material. In this case, for example, the thickness of the connecting plate 25 can also be selected to be different from the thickness of the contact spring 24.
  • the connecting plate 25 is essentially the same as that of the connecting plate 14c in the previous example.
  • the connecting plate 25 also has side parts 25c to form a U-shaped cross section, with which the spring channel 15 is enclosed in the manner previously described.
  • the contact spring 24 is fastened to the connecting plate 25 via a cut-open and bent section 24c, for example by welding or other suitable type of fastening, both a mechanical and an electrical connection being produced.
  • a molded-on spring section 24d serves as an armature return spring corresponding to the spring section 14h described above.
  • the relay is mounted in the manner described above and closed with a film 17, the coil space 18 also being filled with casting compound in this case.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Breakers (AREA)
EP86114899A 1985-10-30 1986-10-27 Relais électromagnétique Expired - Lifetime EP0222243B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3538636 1985-10-30
DE19853538636 DE3538636A1 (de) 1985-10-30 1985-10-30 Elektromagnetisches relais

Publications (2)

Publication Number Publication Date
EP0222243A1 true EP0222243A1 (fr) 1987-05-20
EP0222243B1 EP0222243B1 (fr) 1991-04-03

Family

ID=6284842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114899A Expired - Lifetime EP0222243B1 (fr) 1985-10-30 1986-10-27 Relais électromagnétique

Country Status (4)

Country Link
US (1) US4731597A (fr)
EP (1) EP0222243B1 (fr)
JP (1) JPS62103934A (fr)
DE (2) DE3538636A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7579934B2 (en) 2005-08-24 2009-08-25 Marquardt Gmbh Power breaker and arrangement for switching electrical currents

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041870A (en) * 1988-10-21 1991-08-20 Omron Tateisi Electronics Co. Electromagnetic relay
JPH08255544A (ja) * 1995-03-20 1996-10-01 Nec Corp リードレス表面実装用リレー
US5982257A (en) * 1996-10-31 1999-11-09 Siemens Electromechanical Components, Inc. Integral armature retention spring for electromagnetic relays
DE102007025338B4 (de) * 2007-05-31 2015-02-05 Tyco Electronics Amp Gmbh Verfahren zum Abdichten eines Gehäuses und elektrische Komponente
CA2766036C (fr) * 2009-06-23 2016-03-29 Panasonic Electric Works Co., Ltd. Relais electromagnetique
DE102014103247A1 (de) * 2014-03-11 2015-09-17 Tyco Electronics Austria Gmbh Elektromagnetisches Relais
JP6471678B2 (ja) * 2015-10-29 2019-02-20 オムロン株式会社 接触片ユニット及びリレー
JP6458705B2 (ja) 2015-10-29 2019-01-30 オムロン株式会社 リレー
JP6414019B2 (ja) 2015-10-29 2018-10-31 オムロン株式会社 リレー
US9754747B1 (en) * 2016-04-25 2017-09-05 Song Chuan Precision Co., Ltd. Relay device
KR101888275B1 (ko) * 2016-12-23 2018-08-14 엘에스오토모티브테크놀로지스 주식회사 릴레이 장치
JP6377791B1 (ja) * 2017-03-10 2018-08-22 Ｅｍデバイス株式会社 電磁継電器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324337A1 (de) * 1972-05-13 1973-11-29 Lucas Electrical Co Ltd Elektrisches relais
EP0049088A2 (fr) * 1980-09-26 1982-04-07 Fujitsu Limited Relais électromagnétique
DE3128516A1 (de) * 1981-07-18 1983-02-03 Eberle Anlagen KG, 8500 Nürnberg Elektromagnetisches relais
DE3406832A1 (de) * 1983-02-28 1984-08-30 Matsushita Electric Works, Ltd., Kadoma, Osaka Elektromagnetisches relais

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303665A1 (de) * 1983-02-03 1984-08-09 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches relais
DE3338198A1 (de) * 1983-10-20 1985-05-02 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches relais und verfahren zu dessen herstellung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324337A1 (de) * 1972-05-13 1973-11-29 Lucas Electrical Co Ltd Elektrisches relais
EP0049088A2 (fr) * 1980-09-26 1982-04-07 Fujitsu Limited Relais électromagnétique
DE3128516A1 (de) * 1981-07-18 1983-02-03 Eberle Anlagen KG, 8500 Nürnberg Elektromagnetisches relais
DE3406832A1 (de) * 1983-02-28 1984-08-30 Matsushita Electric Works, Ltd., Kadoma, Osaka Elektromagnetisches relais

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7579934B2 (en) 2005-08-24 2009-08-25 Marquardt Gmbh Power breaker and arrangement for switching electrical currents

Also Published As

Publication number Publication date
JPS62103934A (ja) 1987-05-14
EP0222243B1 (fr) 1991-04-03
DE3678528D1 (de) 1991-05-08
US4731597A (en) 1988-03-15
DE3538636A1 (de) 1987-05-07

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