EP0129068B1 - Relais électromagnétique miniaturisé et méthode de fabrication - Google Patents

Relais électromagnétique miniaturisé et méthode de fabrication Download PDF

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Publication number
EP0129068B1
EP0129068B1 EP84105622A EP84105622A EP0129068B1 EP 0129068 B1 EP0129068 B1 EP 0129068B1 EP 84105622 A EP84105622 A EP 84105622A EP 84105622 A EP84105622 A EP 84105622A EP 0129068 B1 EP0129068 B1 EP 0129068B1
Authority
EP
European Patent Office
Prior art keywords
armature
relay
core
coil
base body
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.)
Expired
Application number
EP84105622A
Other languages
German (de)
English (en)
Other versions
EP0129068A1 (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
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 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 according to the first part of claim 1.
  • the invention also relates to a method for producing such a relay.
  • a relay according to the preamble of claim 1 is essentially known from US-A-3717829.
  • a flat armature is arranged next to the coil winding, so that it forms a working air gap with a core pole face at both ends.
  • a bridge contact spring connected to the armature makes contact with a fixed contact element on both sides.
  • the known relay obviously requires a relatively large extension in all directions. So this relay is built relatively wide even in the embodiment with only one armature. This can already be seen from the fact that a core with a rectangular cross section and a large width apparently carries a coil which has a correspondingly large extent in width. But also in terms of height, the known relay structure requires a relatively large amount of space, since the armature and the contact spring connected to the armature are arranged vertically in the base body. In addition, the known relay obviously requires many individual parts and assembly processes.
  • the object of the invention is to provide a particularly simple small relay with the basic structure according to the preamble of claim 1, which can be manufactured with a few simple parts and has a very flat or a very narrow structure.
  • the size and connection configuration of this relay should be able to be adapted to integrated circuit modules and, despite the minimal size mentioned, it should still be able to switch relatively high currents.
  • the relay according to the invention allows a very flat or narrow structure, 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, since only two fixed contact elements are provided for the changeover contact arrangement.
  • the armature is supported in the rest position under the action of the return springs on a wall of a housing cap.
  • the base body expediently serves both as a coil former and as a carrier for the fixed contact elements and, if appropriate, for coil connecting elements.
  • the core and the fixed contact elements can be embedded in the base body in such a way that only the pole faces of the core and the contact surfaces of the mating contact elements and the connection pins are exposed.
  • the two connecting pins of the fixed contact elements with two coil connecting pins also anchored in the base body in alignment in a row, so that the relay is used either upright with a very narrow design or flat with a very low design on a circuit board can; in the second case, the connecting pins in a row only need to be bent by 90 °.
  • 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 the return springs is then attached laterally to the base body and by fitting one Protective cap is 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 relay according to FIGS. 1 to 3 has a base body 1. which serves both as a coil former and as a contact carrier.
  • This base body 1 has a winding 2 in its central part, which is delimited at both ends by the flanges 3 and 4.
  • a flat core 5 is embedded in the base body within the coil winding. which exits from the coil with its ends and forms a pole face 5a and 5b in chambers 3a and 4a of flanges 3 and 4, respectively.
  • the coil flanges 3 and 4 formed by the base body 1 also each have fixed contact elements 6 and 7, which are embedded in the base body and form connection pins 6a and 7a which protrude downward, in front of the pole faces 5a and 5b.
  • 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 leaf spring 12 which is designed as a combined contact and return spring and which is fastened with its central part on the armature via welding spots 13 or in some other way.
  • the leaf spring ends which are each slotted for the purpose of double contact, form a bridge contact 14 together with the two fixed contact elements 6 and 7.
  • the outer leaf spring ends serve as return springs 15, which are each supported on contact surfaces 16 of the base body when the armature in the direction of Arrow 17 is inserted into the relay.
  • 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 at rest with one end 11a or 11 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 are 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 a film 21 from the underside onto the connecting spikes 6a. 7a.
  • 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.
  • connection pins 6a, 7a. 9a and 10a of the relay in a row downwards out of 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 connect the connecting pins 6a in a row. 7a. 9a and 10a to bend around 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 is punched with the contact elements 6 and 7 and with the coil connecting pins 9 and 10 from a common circuit board 24, all parts remaining connected to the circuit board strip 24 via the connecting pins 6a, 7a, the winding support points 9b, 10b and 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 then 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 on 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)

Claims (8)

1. Petit relais électromagnétique, comprenant un noyau (5) placé dans une bobine d'excitation (2), d'où il dépasse aux deux extrémités, en formant des faces polaires latérales (5a. 5b), une armure plate (11) placée à côté de la bobine (2) et située par chacune de ses extrémités (11a, 11b) en regard d'une face polaire (5a, 5b) du noyau (5), avec formation d'un entrefer de travail, deux éléments de contact fixes (6, 7) qui sont chacun ancrés, dans la région d'une extrémité de noyau (5a, 5b), dans un corps de base (1) portant la bobine (2) et sont chacun munis d'une broche de connexion (6a. 7a), ainsi qu'un ressort-lame plat (12), fixé sur le côté du noyau qui est éloigné de la bobine (2), dans lequel sont découpés, d'un seul tenant, à la fois une lame de contact en pont (14). dépassant librement aux deux extrémités (11a, 11b) de l'armature et reliant les éléments de contact fixes (6, 7), et des ressorts (15) de rappel de l'armature, caractérisé en ce que le noyau (5) est formé d'une tôle plane disposée parallèlement au plan principal de l'armature (11), que l'armature (11) est coudée et contrecoudée à ses deux extrémités (11a. 11b) vers les faces polaires (5a, 5b) du noyau, que les ressorts de rappel (15) sont formés par des parties découpées du ressort-lame (12) et situées des deux côtés de la lame de contact en pont (14), de manière que les ressorts de rappel (15) s'étendent de part et d'autre et parallèlement à la lame de contact en pont (14), et que les ressorts de rappel (15) dépassent également aux deux extrémités (11a. 11b) de l'armature et s'appuient par les extrémités saillantes sur des faces d'appui (16) du corps de base (1).
2. Relais selon la revendication 1, caractérisé en ce que, en position de repos, les ressorts de rappel appliquent l'armature (11) contre une paroi d'un capot formant boîtier (18).
3. Relais selon la revendication 1 ou 2. caractérisé en ce que le corps de base (1) sert à la fois de carcasse de bobine et de support pour les éléments de contact fixes (6, 7).
4. Relais selon la revendication 3, caractérisé en ce que le noyau (5) et les éléments de contact fixes (6, 7) sont encastrés dans le corps de base (1), de manière que seules les faces polaires (5a. 5b) du noyau (5) et les surfaces de contact (8) des éléments de contact opposés (6. 7), de même que les broches de connexion (6a. 7a), soient libres.
5. Relais selon la revendication 3 ou 4. caractérisé en ce que des éléments de connexion de bobine (9, 10) sont encastrés dans le corps de base (1) et possèdent des broches de connexion (9a, 10a) qui font saillie du relais en étant situées en une rangée avec les broches de connexion (6a, 7a) des éléments de contact fixes (6, 7).
6. Procédé pour fabriquer un relais selon une des revendications 1 à 5, caractérisé en ce que l'on forme le corps de base (1) avec encastrement du noyau plat (5) et des éléments de contact fixes (6, 7) et en le dotant de l'enroulement de bobine (2), que l'on dispose ensuite l'armature (11), pourvue de la lame de contact (14) et des ressorts de rappel (15), latéralement contre le corps de base (1) puisqu'on assure le maintien en place de l'armature par la mise en place d'un capot de protection (18).
7. Procédé selon la revendication 6, caractérisé en ce que l'on réalise le noyau (5) et les éléments de contact fixes (6, 7) par découpage d'un disque unique (24). que l'on sépare par découpage le noyau et les éléments de contact fixes à l'exception de languettes d'attache (6a, 7a, 9b, 10b, 25) solidaires d'une bande de guidage (24), qu'on les encastre ensuite ensemble dans une matière isolante puis qu'on les détache de la bande de guidage (24).
8. Procédé selon la revendication 7, caractérisé en ce que l'on découpe également les broches de connexion (9.10) de la bobine dans le disque (24) unique, on les encastre avec les autres éléments et on les coude après la séparation.
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
DE19833318493 DE3318493A1 (de) 1983-05-20 1983-05-20 Elektromagnetisches kleinrelais und verfahren zu dessen herstellung
DE3318493 1983-05-20

Publications (2)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195956A1 (fr) * 1985-03-05 1986-10-01 Siemens Aktiengesellschaft Dispositif de contact dans un relais à pouvoir de coupure élevée
EP0199119A1 (fr) * 1985-03-26 1986-10-29 Siemens Aktiengesellschaft Relais électromagnétique
EP0223112A1 (fr) * 1985-10-30 1987-05-27 Siemens Aktiengesellschaft Composant électromagnétique, en particulier relais et méthode pour le rendre étanche
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
US5440285A (en) * 1991-04-22 1995-08-08 Omron Corporation Closed type electromagnetic relay

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US6247546B1 (en) 1999-05-06 2001-06-19 Sandia Corporation Hopping robot
US6328002B1 (en) 1999-05-06 2001-12-11 Sandia Corporation Misfire tolerant combustion-powered actuation
US6286386B1 (en) 1999-05-06 2001-09-11 Sandia Corporation Passive orientation apparatus
US6308791B1 (en) 1999-05-06 2001-10-30 Sandia Corporation Steerable vertical to horizontal energy transducer for mobile robots
JP2003242873A (ja) * 2002-02-19 2003-08-29 Fujitsu Component Ltd マイクロリレー
US20070290776A1 (en) * 2006-06-17 2007-12-20 Tim Hasenour Time delay relay
US20070290646A1 (en) * 2006-06-17 2007-12-20 Tyco Electronics Corporation Soft start time delay relay

Family Cites Families (8)

* 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
DE1816364B2 (de) * 1968-12-21 1973-11-15 Westfaelische Metall Industrie Kg, Hueck & Co, 4780 Lippstadt Elektromagnetisches Relais, ins besondere fur Kraftfahrzeuge
US3708768A (en) * 1971-06-18 1973-01-02 Datron Syst Inc Miniature relay
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
IT1046855B (it) * 1975-01-31 1980-07-31 Fiamm Spa Role elettromagnetic di piccolo imgombro in particolare per autoveicoli
JPS5124753A (en) * 1974-08-22 1976-02-28 Matsushita Electric Works Ltd Denjikeidenki

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195956A1 (fr) * 1985-03-05 1986-10-01 Siemens Aktiengesellschaft Dispositif de contact dans un relais à pouvoir de coupure élevée
EP0199119A1 (fr) * 1985-03-26 1986-10-29 Siemens Aktiengesellschaft Relais électromagnétique
EP0223112A1 (fr) * 1985-10-30 1987-05-27 Siemens Aktiengesellschaft Composant électromagnétique, en particulier relais et méthode pour le rendre étanche
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
US5440285A (en) * 1991-04-22 1995-08-08 Omron Corporation Closed type electromagnetic relay

Also Published As

Publication number Publication date
EP0129068A1 (fr) 1984-12-27
US4517537A (en) 1985-05-14
DE3318493A1 (de) 1984-11-22
DE3463198D1 (en) 1987-05-21
JPS59224024A (ja) 1984-12-15

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