EP0129068A1 - Relais électromagnétique miniaturisé et méthode de fabrication - Google Patents

Relais électromagnétique miniaturisé et méthode de fabrication Download PDF

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Publication number
EP0129068A1
EP0129068A1 EP84105622A EP84105622A EP0129068A1 EP 0129068 A1 EP0129068 A1 EP 0129068A1 EP 84105622 A EP84105622 A EP 84105622A EP 84105622 A EP84105622 A EP 84105622A EP 0129068 A1 EP0129068 A1 EP 0129068A1
Authority
EP
European Patent Office
Prior art keywords
armature
coil
core
fixed contact
spring
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
EP84105622A
Other languages
German (de)
English (en)
Other versions
EP0129068B1 (fr
Inventor
Josef Dr.Rer. Nat. Weiser
Alfred Dipl.-Ing. Heinzl (Fh)
Heinz Stadler
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0129068A1 publication Critical patent/EP0129068A1/fr
Application granted granted Critical
Publication of EP0129068B1 publication Critical patent/EP0129068B1/fr
Expired 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
    • H01H50/54—Contact arrangements
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/043—Details particular to miniaturised relays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the invention relates to a small electromagnetic relay with a flat core arranged within an excitation coil, the ends of which emerge from the coil each form pole faces for an armature which is arranged next to the coil and is in contact with both pole faces when the coil is excited, and with one from the armature actuatable contact arrangement.
  • the invention also relates to a method for producing such a relay.
  • Electromagnetic relays with the above-mentioned basic structure have long been known. These conventional so-called flat relays have a single-sided armature that actuates contact spring sets attached to the side of the relay via an actuating slide. However, this conventional design with separately applied contact spring sets is not for miniaturization. suitable.
  • the object of the invention is to provide a particularly simple small relay with the basic structure mentioned at the beginning, which can be produced with a few simple parts.
  • the size and connection configuration of the relay should be able to be adapted to integrated circuit modules and, despite the minimal size, be able to switch relatively large currents.
  • this object is achieved in that Area of both armature ends, at least one fixed contact element provided with a connecting pin is anchored in a base body carrying the coil and that a contact spring extending in the longitudinal direction of the armature and approximately centrally fastened to it electrically connects two fixed contact elements to one another at least in one end position.
  • the relay according to the invention allows a very flat bzu. Narrow construction, since in one direction only the thickness of the core punched from a sheet metal is summed up with the thickness of the coil winding including the coil former and with the thickness of the armature likewise made of a flat sheet metal with a flat contact spring attached.
  • the fixed contact elements are located in front of the two armature ends and therefore do not increase the depth of the relay structure in any case, if only two fixed contact elements are provided for a normally open or normally closed contact.
  • the armature can be mounted on one of the pole faces and only form a working air gap with the second pole face of the core.
  • the contact spring fastened on the armature is firmly connected to the one fixed contact element and only with its other free end in switching connection with one or two fixed mating contact elements.
  • a particularly advantageous embodiment of the invention consists in that the armature forms working air gaps with both pole faces of the core, i.e. carries out a translational switching movement in a direction perpendicular to the coil axis, the contact spring attached to it also making a switching movement with each of its two ends as a bridge contact spring executes against a mating contact element. Due to the double contact opening with the bridge contact spring and the arrangement of the associated fixed contact elements on opposite ends of the relay with correspondingly large insulating distances, it is possible to switch relatively strong currents even with a very small construction and very little armature stroke.
  • the rest position of the armature is expediently generated by a return spring designed as a leaf spring which, like the contact spring, lies flat on the armature and rests with its free ends on contact surfaces of the base body.
  • a return spring is provided on both sides of the contact spring, the return spring or the return springs being connected in one piece with the contact spring in its central section and only with their free ones in a particularly simple embodiment Ends are cut free.
  • the armature is expediently supported on a housing cap against which it is biased by the return spring.
  • the base body expediently serves simultaneously as a coil former and as a carrier for the fixed contact elements and, if appropriate, for coil connections ment.
  • the core and the fixed contact elements can be embedded in the base body, so that only the pole faces of the core and the contacting surfaces of the fixed contact elements are exposed.
  • the base body is formed by embedding the flat core and the fixed contact elements and provided with the coil winding, that the armature provided with the contact spring and a return spring is then attached laterally to the base body and by fitting one Protective cap secured.
  • the core and the mating contact elements are first punched out of a common circuit board and cut apart with the exception of one holding web hanging from a guide strip, then embedded together in insulating material and then separated from the guide strip.
  • the coil connecting pins can also be punched out of the common circuit board, embedded with them and bent into a desired grid position after the coil has been wound.
  • the base body 1 to 3 consists of a base body 1, which serves both as a coil former and as a contact carrier.
  • This base body 1 carries in its central part a winding 2 which is delimited at both ends by the flanges 3 and 4.
  • a flat core 5 is embedded within the coil winding, the ends of which come out of the coil and end in chambers 3a bzu.
  • 4a of the flanges 3 and 4 each have a pole face 5a bzu. 5b forms.
  • the coil flanges 3 and 4 formed by the base body 1 also each have fixed contact elements 6 b on the end faces in front of the pole faces 5 a and 5 b. 7, which are embedded in the base body and form connecting pins 6a and 7a which project downward.
  • the contact elements 6 and 7 are each provided with contact surfaces 8.
  • the base body carries on the underside two coil connection elements 9 and 10, which have connection spikes 9a and 10a protruding downwards in a row with the connection spikes 6a and 7a of the contact elements and also form winding support points 9b and 10b for the winding ends 2a and 2b.
  • An armature 11, like the core 5, consists of a flat sheet metal, the armature ends 11a and 11b each being cranked so that they can lie flat on the respective pole faces 5a and 5b of the core.
  • the armature 11 carries on its outer surface facing away from the coil a combined contact and return spring 12 which is fastened with its central part to the armature via welding spots 13 or in some other way.
  • the outer spring ends 15 serve as return springs, which are each supported on contact surfaces 16 of the base body when the armature in the direction of Arrow 17 in that Relay is used.
  • the armature is secured against falling out by fitting a protective cap 18, it being pressed against the protective cap by the restoring force of the return springs 15.
  • the return springs 15 it would also be conceivable for the armature to rest with one end 11a or 11b in the rest position on the corresponding pole face 5a or 5b and to perform a pivoting movement about the relevant armature end when switching.
  • all return springs 15 will be biased equally, so that the armature performs a translational switching movement in the direction of arrow 17 perpendicular to the coil axis when switching.
  • the base body 1 also has a space 19 for receiving a getter 20.
  • the relay can be tightly closed by attaching a film 21 from the underside to the connecting spikes 6a, 7a, 9a and 10a and welding bzu to the edge 18a of the protective cap. is glued.
  • a potting compound 23 can then be filled in to a certain level via a siphon-like opening 22 in the cap 18, as a result of which the opening 22 is also sealed when the potting compound hardens.
  • the pins 6a, 7a, 9a and 10a of the relay protrude downwards in a row from the relay housing.
  • the relay can thus be used as a very narrow component on a circuit board. If necessary, it is also possible to bend the connecting pins 6a, 7a, 9a and 10a in a row about a common axis by 90 °, so that the relay lies very flat on a circuit board.
  • Fig. 3 the relay according to Fig. 1 is shown in different manufacturing stages.
  • the core 5 with the contact elements 6 and 7 and with the coil connecting pins 9 and 10 is punched out of a common circuit board 24, all parts being connected via the connecting pins 6a, 7a, the Uickel support points 9b, 10b and remain connected to the circuit board strip 24 via retaining webs 25. All these parts are then encapsulated with insulating material to form the base body 1.
  • the connecting pins are then cut free from the strip 24 and the retaining webs 25 are separated.
  • the coil winding 2 is applied to the base body, the winding ends 2a and 2b being wound onto the respective winding support points 9b and 10b.
  • the coil connecting pins 9 and 10 can be bent over the underside of the winding, so that the connecting spikes 9a and 10a protrude parallel to the connecting spikes 6a and 7a of the contact elements to the underside of the relay.
  • the armature 11 with the spring 12 can then be inserted and the relay can be closed with the protective cap 18.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP84105622A 1983-05-20 1984-05-17 Relais électromagnétique miniaturisé et méthode de fabrication Expired EP0129068B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3318493 1983-05-20
DE19833318493 DE3318493A1 (de) 1983-05-20 1983-05-20 Elektromagnetisches kleinrelais und verfahren zu dessen herstellung

Publications (2)

Publication Number Publication Date
EP0129068A1 true EP0129068A1 (fr) 1984-12-27
EP0129068B1 EP0129068B1 (fr) 1987-04-15

Family

ID=6199556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105622A Expired EP0129068B1 (fr) 1983-05-20 1984-05-17 Relais électromagnétique miniaturisé et méthode de fabrication

Country Status (4)

Country Link
US (1) US4517537A (fr)
EP (1) EP0129068B1 (fr)
JP (1) JPS59224024A (fr)
DE (2) DE3318493A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8506345U1 (de) * 1985-03-05 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung in einem Relais für hohe Schaltleistung
US4684909A (en) * 1985-03-26 1987-08-04 Siemens Aktiengesellschaft Electromagnetic relay
US4713727A (en) * 1985-10-30 1987-12-15 Siemens Aktiengesellschaft Electromechanical component with sealed housing
US5079098A (en) * 1988-03-16 1992-01-07 Loctite Corporation Primer for bonding low surface energy plastics with cyanoacrylate adhesives and bonding method employing same
DE3813119A1 (de) * 1988-04-15 1989-10-26 Siemens Ag Spulenkoerper und verfahren zur herstellung eines spulenkoerpers
US5070315A (en) * 1989-05-26 1991-12-03 Omron Corporation Electromagnetic relay
US5038123A (en) * 1989-12-14 1991-08-06 General Motors Corporation Flat electromagnetic relay
AU1672992A (en) * 1991-04-22 1992-11-17 Omron Corporation Sealed electromagnetic relay
US5148136A (en) * 1991-08-19 1992-09-15 General Motors Corporation Flat electromagnetic relay
US5325079A (en) * 1993-01-21 1994-06-28 Kaloust P. Sogoian Electromagnetic relay with integral contacts
DE19544624C1 (de) * 1995-11-30 1997-01-02 Hella Kg Hueck & Co Elektromagnetisches Klappankerrelais
US6308791B1 (en) 1999-05-06 2001-10-30 Sandia Corporation Steerable vertical to horizontal energy transducer for mobile robots
US6247546B1 (en) 1999-05-06 2001-06-19 Sandia Corporation Hopping robot
US6286386B1 (en) 1999-05-06 2001-09-11 Sandia Corporation Passive orientation apparatus
US6328002B1 (en) 1999-05-06 2001-12-11 Sandia Corporation Misfire tolerant combustion-powered actuation
JP2003242873A (ja) * 2002-02-19 2003-08-29 Fujitsu Component Ltd マイクロリレー
US20070290646A1 (en) * 2006-06-17 2007-12-20 Tyco Electronics Corporation Soft start time delay relay
US20070290776A1 (en) * 2006-06-17 2007-12-20 Tim Hasenour Time delay relay

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816364A1 (de) * 1968-12-21 1970-07-09 Westfaelische Metall Industrie Elektromagnetisches Relais,insbesondere fuer Kraftfahrzeuge
US3717829A (en) * 1971-08-27 1973-02-20 Allied Control Co Electromagnetic relay
CA977014A (en) * 1973-06-08 1975-10-28 United-Carr Divisions Of Trw Canada Limited Simple automotive relay
DE2537462A1 (de) * 1974-08-22 1976-03-11 Matsushita Electric Works Ltd Elektromagnetisches schuetz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE472266A (fr) * 1943-07-07
DE1639232B1 (de) * 1966-03-20 1972-10-05 Electronic Controls Inc Elektromagnetisches Relais
US3708768A (en) * 1971-06-18 1973-01-02 Datron Syst Inc Miniature relay
IT1046855B (it) * 1975-01-31 1980-07-31 Fiamm Spa Role elettromagnetic di piccolo imgombro in particolare per autoveicoli

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816364A1 (de) * 1968-12-21 1970-07-09 Westfaelische Metall Industrie Elektromagnetisches Relais,insbesondere fuer Kraftfahrzeuge
US3717829A (en) * 1971-08-27 1973-02-20 Allied Control Co Electromagnetic relay
CA977014A (en) * 1973-06-08 1975-10-28 United-Carr Divisions Of Trw Canada Limited Simple automotive relay
DE2537462A1 (de) * 1974-08-22 1976-03-11 Matsushita Electric Works Ltd Elektromagnetisches schuetz

Also Published As

Publication number Publication date
US4517537A (en) 1985-05-14
EP0129068B1 (fr) 1987-04-15
DE3463198D1 (en) 1987-05-21
JPS59224024A (ja) 1984-12-15
DE3318493A1 (de) 1984-11-22

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