EP0096350B1 - Relais électromagnétique à armature tournante - Google Patents

Relais électromagnétique à armature tournante Download PDF

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Publication number
EP0096350B1
EP0096350B1 EP83105397A EP83105397A EP0096350B1 EP 0096350 B1 EP0096350 B1 EP 0096350B1 EP 83105397 A EP83105397 A EP 83105397A EP 83105397 A EP83105397 A EP 83105397A EP 0096350 B1 EP0096350 B1 EP 0096350B1
Authority
EP
European Patent Office
Prior art keywords
armature
contact
basic body
relay
contact springs
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
EP83105397A
Other languages
German (de)
English (en)
Other versions
EP0096350A3 (en
EP0096350A2 (fr
Inventor
Rolf-Dieter Dipl.-Phys. Kimpel
Heinz Stadler
Alfred Ing. Heinzl (Grad.)
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 EP0096350A2 publication Critical patent/EP0096350A2/fr
Publication of EP0096350A3 publication Critical patent/EP0096350A3/de
Application granted granted Critical
Publication of EP0096350B1 publication Critical patent/EP0096350B1/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
    • H01H50/548—Contact arrangements for miniaturised relays

Definitions

  • the invention relates to an electromagnetic rotary armature relay according to the first part of patent claim 1.
  • a rotary fan relay with a conventional design is known for example from DE-A-2 723 430.
  • this relay can work with or without permanent magnets, unpoled or poled, monostable or bistable.
  • Rotary armature relays of this type are generally relatively sensitive with low response power and, due to the central armature mounting, are also largely insensitive to shock.
  • the contacts are actuated via actuators which are connected directly or indirectly to the armature and act on movable contact springs, which in turn are anchored in the base body together with the fixed mating contact elements.
  • the friction of the armature in its mounting and in particular the friction between the slide and the movable contact springs should not be neglected, while on the other hand the movable contact springs, which are only moved about their clamping point, have practically no friction at their contact points.
  • EP-A-0 038 727 also describes a rotary armature relay according to the first part of claim 1, in which a certain friction is generated on the contact surfaces for self-cleaning, so that the disadvantages described above are partially eliminated.
  • the rotary armature relay described there is designed for the switching of high-voltage current, which is associated with a voluminous and relatively complicated design.
  • a U-shaped yoke carries two coils there, and on this yoke arrangement the rotary armature is mounted, which has an insulating sleeve and carries contact springs attached to the sides of this insulating sleeve.
  • the base body there consists of a vertically standing plate in which the mating contact elements are anchored.
  • the magnet system is attached to a transverse plate, the armature being mounted between this transverse plate and a further, removable part.
  • the armature is thus asymmetrically mounted with respect to the base body.
  • the contact arrangement is also not designed symmetrically. This results from the fact that the two bridge contact springs on the armature only protrude on one side and interact on one side with fixed counter-contact elements. This results in an asymmetrical load in the bearing, which also increases the friction and excitation power of the relay.
  • the known relay is only intended for use with bridge contacts; these are advantageous when used for higher voltages, but disadvantageous for switching very low currents because of the two contact resistance in the circuit.
  • the known construction is not readily applicable to small relays for switching small voltages.
  • FR-A-1 599 391 shows a device on a generator for protection against reverse polarity; this has a kind of armature, which itself also carries two coils and, depending on the current direction, occupies one or the other position.
  • Suggestions for the design of a rotary armature relay of the type mentioned at the outset cannot, however, be taken from this document, since neither switching of external circuits is provided nor is there any comparable structure of a base body and a coil with a core separated from the armature and shown on the base body becomes.
  • the object of the invention is to provide a rotary armature relay according to the first part of claim 1, in which, in a known manner, the contact springs are attached directly to the insulation of the armature, but which is advantageously further developed for use as a low-current relay, with friction losses during armature movement are largely avoided and the excitation power of the relay is kept small and the relay is formed with as few parts as possible.
  • the contact springs located on one longitudinal side of the armature are each connected in the area of the embedding to form a contact spring, which is fastened with its central section in the insulating material sheath and can be brought into contact with a mating contact element with its two free end sections is.
  • four movable contact springs are obtained which are insulated from one another and which, depending on the design of the mating contact elements on the base body, can form a break contact, a make contact or a changeover contact.
  • the contact springs fastened in the insulating material covering of the armature are connected to an associated connection element in the base body via a flexible conductor element, that is to say via a wire or a flexible sheet metal tab.
  • the armature which can be provided, for example, as a so-called H-armature with one or more permanent magnets, can be in a known manner be journal-supported on the base body, it being possible for bearing elements, that is to say journals or bearing bores, to be formed in the insulating material covering of the armature. To avoid bearing friction, the armature can, however, also be held on the base body via spring-deformable bearing elements. It is particularly advantageous if extensions are integrally formed as spring-deformable bearing elements on the contact springs fastened in the insulating material covering and anchored in the base body.
  • the contact springs can each be integrally formed with the bearing elements of the armature and the connecting pins anchored in the base body. As a result, the relay can be manufactured with very few parts.
  • Fig. 1 shows a relay with a base body 1, which may for example have the shape of a tub open at the bottom.
  • a base body In the base body there is housed an invisible coil, the rod-shaped core 2 of which, with its free ends, forms working air gaps with an armature 3 mounted on the base body.
  • the armature 3 consists of two elongated ferromagnetic rods 4 and 5, the ends 4a, 4b and 5a and 5b of which are each angled downward in a U-shape and with their free ends each enclosing a free end of the core 2.
  • the ferromagnetic rods 4 and 5 are held together by an insulating jacket 6.
  • a bearing bore 7 is formed in this insulating material sheathing, by means of which the armature is rotatably mounted on a pin 8 of the base body.
  • Two permanent magnets 9 and 10 are arranged between the ferromagnetic rods 4 and 5, through which the relay is polarized.
  • two contact springs 11 and 12 and 13 and 14 are embedded or fastened on both sides, which are carried along by each armature movement and accordingly optionally have contact with the mating contact elements 15, 16 anchored in the base body 1.
  • Each of these mating contact elements is provided on the underside of the base body 1 with a connecting pin 15a, 16a, etc.
  • connection elements 23 and 24 are anchored in the base body 1 with corresponding connection pins 23a and 24a for the movable contact springs 11 and 12 as well as corresponding, not visible connection elements for the contact springs 13 and 14.
  • Additional pins 25 and 26 are provided for the coil winding.
  • the movable contact springs 11 and 12 are connected to their connecting elements 23 and 24 via flexible strands 27 and 28.
  • the relay according to FIG. 1 can be closed, for example, with a cap 29, which is only indicated in the drawing.
  • a cap 29 can be tightly connected, glued or welded to the base body in a known manner.
  • Fig. 2 shows a schematic representation of a modified embodiment of the rotary armature relay according to the invention.
  • An armature 32 with an elongated ferromagnetic rod 33 is arranged on a base body 31, the two ends of which form working air gaps with respect to core pole plates 34 and 35, and 36 and 37 arranged in pairs.
  • These are part of a magnet system (not shown) with two U-shaped core elements which carry a coil and enclose a permanent magnet between them.
  • a magnet system is described for example in EP-A-0 077 017.
  • the armature 32 has an insulating material covering 38 in its middle part, in which movable contact springs 39, 40, 41 and 42 are fastened by insertion or embedding. These movable contact springs cooperate, for example, with mating contact elements 43, 44, 45 and 46 anchored in the base body 31, wherein, of course, changeover contacts could also be formed with further mating contact elements, not shown.
  • the armature is not journal-supported, but rather spring-supported via extensions 39a, 40a, 41a and 42a of the contact springs 39, 40, 41 and 42.
  • These extensions 39a, 40a, 41a 41a and 42a are anchored in the base body 31 and at the same time form with integrally formed connecting pins 39b, 40b etc. for the movable contact springs.
  • These extensions can also be meandering in order to enable better movement of the armature. This results in a friction-free anchor bearing, combined with the advantages of the first embodiment.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Braking Arrangements (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Claims (6)

1. Relais électromagnétique, comportant
- un corps de base (1; 31) constitué en un matériau isolant et portant une bobine d'excitation munie d'un noyau possédant des extrémités polaires libres (2; 34, 35, 36, 37),
- des organes de contact antagonistes (15 à 22; 43 à 46) ancrés dans le corps de base (1; 31) et comportant des broches de raccordement (15a à 18a; 39b, 40b),
- une armature montée pivotante (3; 32), qui comporte au moins un barreau ferromagnétique (4; 5; 33) et forme, au niveau de ses extrémités libres, des entrefers de travail avec les extrémités polaires respectives du noyau de bobine (2; 34, 35, 36, 37) et porte, dans sa zone médiane, une enveloppe en matériau isolant (6; 38) contenant des éléments de support, et
- des ressorts de contact (11 à 14; 39 à 42), qui sont fixés, sur les deux côtés longitudinaux de l'armature, sur l'enveloppe en matériau isolant (6; 38), en étant respectivement parallèles au barreau ferromagnétique (33) ou aux barreaux ferromagnétiques (4, 5), et coopèrent avec les organes de contact antagonistes,

caractérisé par le fait
que les broches de raccordement (15a à 18a; 39b, 40b) des organes de contact antagonistes (15 à 18; 43 à 46) et d'organes supplémentaires de raccordement (23, 24; 39b, 40b) ancrés dans le corps de base (1; 31) pour les ressorts de contact (11 à 14; 39 à 42) sortent au niveau de la face inférieure du corps de base (1; 31), tandis que l'armature (3; 32) est supportée d'une manière approximativement centrée sur la face supérieure du corps de base,
que deux ressorts de contact respectifs (11, 12; 13, 14; 39, 40; 41, 42) sont disposés sur chaque côté longitudinal de l'armature (3; 32) et s'étendent dans des directions opposées à partir de leurs points de fixation dans l'enveloppe en matériau isolant, approximativement jusqu'à l'extrémité libre respective de l'armature (3; 32), et
que chaque ressort de contact (11 à 14; 32 à 42) est relié par l'intermédiaire d'un élément de conducteur flexible (27, 28; 39a à 42a) à un élément de raccordement associé (23, 24; 39b à 42b).
2. Relais suivant la revendication 1, caractérisé par le fait que les ressorts de contact situés respectivement sur un côté longitudinal de l'armature sont reliés, dans la zone de leur ancrage, à un ressort de contact qui est fixé, par sa section médiane, dans l'enveloppe en matériau isolant et peut être amené respectivement au choix, par ses deux sections d'extrémité libre, en contact avec un organe de contact antagoniste.
3. Relais suivant l'une des revendications 1 ou 2, caractérisé par le fait que l'armature (3) est tourillonnée sur le corps de base (1) au moyen d'éléments de support (7) prévus sur l'enveloppe en matériau isolant (6).
4. Relais suivant l'une des revendications 1 à 3, caractérisé par le fait que l'armature (32) est maintenue sur le corps de base (31) par l'intermédiaire d'éléments de support (39a, 40a, 41a, 42a) déformables élastiquement.
5. Relais suivant la revendication 4, caractérisé par le fait que les appendices saillants (39a, 40a, 41a, 42a) sont formés par façonnage, en tant qu'éléments de support déformables élastiquement, sur les ressorts de contact (39, 40, 41, 42) fixés dans l'enveloppe en matériau isolant (32) et sont ancrés dans le corps de base.
6. Relais suivant la revendication 5, caractérisé par le fait que les ressorts de contact (32, 40, 41, 42) sont réalisés respectivement d'un seul tenant avec les éléments de support (39a, 40a, 41a, 42a) et avec les broches de raccordement (39b, 40b,...) ancrées dans le corps de base (31).
EP83105397A 1982-06-03 1983-05-31 Relais électromagnétique à armature tournante Expired EP0096350B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3220985 1982-06-03
DE19823220985 DE3220985A1 (de) 1982-06-03 1982-06-03 Elektromagnetisches drehankerrelais

Publications (3)

Publication Number Publication Date
EP0096350A2 EP0096350A2 (fr) 1983-12-21
EP0096350A3 EP0096350A3 (en) 1986-12-30
EP0096350B1 true EP0096350B1 (fr) 1988-11-17

Family

ID=6165244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105397A Expired EP0096350B1 (fr) 1982-06-03 1983-05-31 Relais électromagnétique à armature tournante

Country Status (4)

Country Link
US (1) US4539540A (fr)
EP (1) EP0096350B1 (fr)
JP (1) JPS58216321A (fr)
DE (2) DE3220985A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436619A1 (de) * 1983-10-05 1985-05-09 Omron Tateisi Electronics Co., Kyoto Elektromagnetisches relais
DE3425889C1 (de) * 1984-07-13 1986-02-13 SDS-Relais AG, 8024 Deisenhofen Sicherheitsrelais
DE3585056D1 (de) * 1984-07-13 1992-02-13 Euro Matsushita Electric Works Sicherheitsrelais.
DE3520773C1 (de) * 1985-05-29 1989-07-20 SDS-Relais AG, 8024 Deisenhofen Elektromagnetisches Relais
US4771975A (en) * 1986-09-11 1988-09-20 Semec, Inc. Vehicle seat position adjuster
JP4424260B2 (ja) * 2005-06-07 2010-03-03 オムロン株式会社 電磁リレー
US8514040B2 (en) * 2011-02-11 2013-08-20 Clodi, L.L.C. Bi-stable electromagnetic relay with x-drive motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089670A2 (fr) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Relais électromagnétique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1599391A (fr) * 1968-12-11 1970-07-15
US3717829A (en) * 1971-08-27 1973-02-20 Allied Control Co Electromagnetic relay
DE2454967C3 (de) * 1974-05-15 1981-12-24 Hans 8024 Deisenhofen Sauer Gepoltes elektromagnetisches Relais
JPS6042572B2 (ja) * 1977-05-13 1985-09-24 松下電工株式会社 有極継電器
DE2723430C2 (de) * 1977-05-24 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
JPS5941593Y2 (ja) * 1979-09-21 1984-11-30 高周波熱錬株式会社 ビレツトヒ−タ用誘導加熱コイルの耐火チユ−ブ
FR2486303A1 (fr) * 1980-03-21 1982-01-08 Bernier Et Cie Ets Relais electromagnetique a armature pivotante a aimant permanent
DE3132239C2 (de) * 1981-08-14 1986-12-04 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089670A2 (fr) * 1982-03-23 1983-09-28 Siemens Aktiengesellschaft Relais électromagnétique

Also Published As

Publication number Publication date
JPS58216321A (ja) 1983-12-16
DE3378507D1 (en) 1988-12-22
DE3220985A1 (de) 1983-12-08
US4539540A (en) 1985-09-03
EP0096350A3 (en) 1986-12-30
EP0096350A2 (fr) 1983-12-21

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