EP0061655B2 - Chambre de commutation pour contacts électriques isolée de l'environnement - Google Patents

Chambre de commutation pour contacts électriques isolée de l'environnement Download PDF

Info

Publication number
EP0061655B2
EP0061655B2 EP82102182A EP82102182A EP0061655B2 EP 0061655 B2 EP0061655 B2 EP 0061655B2 EP 82102182 A EP82102182 A EP 82102182A EP 82102182 A EP82102182 A EP 82102182A EP 0061655 B2 EP0061655 B2 EP 0061655B2
Authority
EP
European Patent Office
Prior art keywords
getter
environment
contacts
switch chamber
electric contacts
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 - Lifetime
Application number
EP82102182A
Other languages
German (de)
English (en)
Other versions
EP0061655B1 (fr
EP0061655A2 (fr
EP0061655A3 (en
Inventor
Hans Sauer
Takashi Takada
Yukihiro Kondo
Tetsuo Mori
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.)
Cessione sds - Relais AG
Original Assignee
Matsushita Electric Works Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25798806&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0061655(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP56048766A external-priority patent/JPS57162644A/ja
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to AT82102182T priority Critical patent/ATE22749T1/de
Publication of EP0061655A2 publication Critical patent/EP0061655A2/fr
Publication of EP0061655A3 publication Critical patent/EP0061655A3/de
Publication of EP0061655B1 publication Critical patent/EP0061655B1/fr
Application granted granted Critical
Publication of EP0061655B2 publication Critical patent/EP0061655B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/64—Protective enclosures, baffle plates, or screens for contacts
    • H01H1/645—Protective enclosures, baffle plates, or screens for contacts containing getter material

Definitions

  • the invention relates to a switching chamber sealed from the environment, in which electrical contacts are accommodated and which is closed off by a getter which has a glued-on getter carrying housing cap, the substance used as getter material being adsorptive with respect to substances which form foreign layers on the contacts works. Such substances are to be kept away from the contacts by the adsorption, so that the contact resistance is kept as unchanged as possible.
  • a relay is known with a switching chamber sealed from the environment of the type described in the introduction, the getter being glued to the inner wall of the housing cap, which is made of plastic and encloses the switching chamber.
  • the getter the structure of which is not specified in the publication mentioned, primarily serves to lower the relative atmospheric humidity in the relay.
  • FR-A-1 482 981 generally teaches the use of aluminum oxide with a pore diameter of 10 to 100 nm for gas separation by adsorption of a component, the pore size depending on the gases to be separated.
  • the invention is based on the object of providing a getter in a sealed switching chamber of the type mentioned at the outset in such a way that it binds the substances which tend to form foreign layers on the contacts as effectively as possible.
  • the solution to this problem is characterized in claim 1.
  • the attachment of the getter according to the invention to a metallic wall section of the housing has the effect that this part is generally cooler than the area of the contacts due to its better thermal conductivity, so that there is a temperature gradient between the contacts and the getter that damages the harmful ones Substances on the getter and thus the getter effect favors.
  • the diffusion barrier provided according to claim 2 serves to protect the getter against contamination by the adhesive used for its attachment, so that the getter retains its full effectiveness with regard to the actual substances to be adsorbed.
  • the switching chamber described here forms part of a relay in which a coil body 10 with a winding 11 is arranged on a base plate 9 provided with connections 8.
  • a contact tongue 12 runs through a coaxial passage of the coil former 10 and is fastened at one end to a carrier 13.
  • the other free end of the contact tongue 12 is mounted between two fixed contacts 14 and 15, which simultaneously act as pole pieces of a permanent magnet 16 arranged between them.
  • the polarized relay thus formed is tightly enclosed by a metallic housing cap 17 placed on the base plate 9.
  • a getter pill 1 is attached to the inside of the end wall of the housing cap 17 adjacent to the free end of the contact tongue 12 and the fixed contacts 14 and 15 by means of an adhesive 4.
  • the getter pill 1 preferably consists essentially of aluminum oxide (Al 2 O 3 ) mixed with organic binder, known as alumina, with a pore diameter that is larger than 3 nm and smaller than 100 nm with an average value in the range from about 7 to 20 nm.
  • a layer 2 of water glass for example Na 2 Si0 3 or K 2 Si0 3
  • this layer 2 can also be provided on the side surfaces of the getter pill 1, so that only the surface 1a of the getter pill 1 facing the switching chamber is free as an active surface.
  • the interior of the relay forming the switching chamber is preferably filled with a protective gas of such a moisture content that a relative atmospheric humidity of not less than 5% and not more than 40% is established by the action of the getter material.
  • the getter material ensures a constant moisture content of the protective gas by adsorption of H 2 O molecules, which can diffuse from the environment if the switching chamber is hermetically sealed. This enables a constant dielectric strength with regard to the contacts.
  • the getter material is preferably produced in a sintering process.
  • the binder required for the shaping evaporates during the sintering.
  • the desired pore size can be achieved by choosing the binder, the pressure during shaping, the sintering temperature and the sintering time.
  • the attachment of the getter pill 1 to the metallic housing cap 17 causes a temperature gradient between the contacts and the getter material such that the getter material is generally cooler than the contacts. This favors the precipitation of harmful substances on the getter pill 1.
  • the relay is warmer than the environment due to the energy conversion taking place on the coil and contacts, so that heat is transferred the housing is delivered.
  • the cooling of the housing that takes place here simultaneously lowers the temperature level of the getter substance, which favors its getter effect.
  • the spatial size of the getter material is selected taking into account its getter effect and the volume of the switching chamber in such a way that a noteworthy pressure drop in the switching chamber is excluded. In addition to the getter effect, this can also ensure constant dielectric strength in the long term.
  • the getter material can exert its effect
  • the getter material is preferably activated bar at a temperature of at least 100 ° C and a vacuum of approximately 10. 8
  • gases bound in the pores and also crystalline bound H 2 O are released.

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Claims (2)

1. Chambre de commutation rendue étanche vis-à-vis de l'environnement, dans laquelle sont montés des contacts électriques (12, 14, 15) et qui est fermée par un couvercle formant boîtier (17) supportant un getter (1) collé sur son côté intérieur, la substance du getter étant une substance qui agit par adsorption vis-à-vis de substances qui forment des couches étrangères sur les contacts (12, 14, 15), caractérisée en ce que le getter (1), dont les pores ont un diamètre supérieur à 3 nm et inférieur à 100 nm, la valeur de moyenne de ce diamètre étant dans la plage de 7 à 20 nm, est collé sur le côté intérieur d'une section de paroi métallique du couvercle formant boîtier (17).
2. Chambre de commutation selon la revendication 1, caractérisée en ce que le getter (1) est collé sur le côté intérieur de la section de paroi métallique avec interposition d'une couche (2) en verre soluble (par exemple Na2Si03, K2Si03) agissant en tant que barrière de diffusion.
EP82102182A 1981-03-31 1982-03-17 Chambre de commutation pour contacts électriques isolée de l'environnement Expired - Lifetime EP0061655B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102182T ATE22749T1 (de) 1981-03-31 1982-03-17 Von der umgebung abgedichtete schaltkammer fuer elektrische kontakte.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP56048766A JPS57162644A (en) 1981-03-31 1981-03-31 Gas adsorbent
JP48766/81 1981-03-31
DE3200392A DE3200392C2 (de) 1981-03-31 1982-01-08 Hermetisch abgedichtete Schaltkammer für elektromagnetische Relais
DE3200392 1982-01-08

Publications (4)

Publication Number Publication Date
EP0061655A2 EP0061655A2 (fr) 1982-10-06
EP0061655A3 EP0061655A3 (en) 1983-04-27
EP0061655B1 EP0061655B1 (fr) 1986-10-08
EP0061655B2 true EP0061655B2 (fr) 1990-03-28

Family

ID=25798806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102182A Expired - Lifetime EP0061655B2 (fr) 1981-03-31 1982-03-17 Chambre de commutation pour contacts électriques isolée de l'environnement

Country Status (3)

Country Link
US (1) US4430537A (fr)
EP (1) EP0061655B2 (fr)
CA (1) CA1179311A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3001437B2 (ja) * 1996-11-18 2000-01-24 東北日本電気株式会社 電気接点及びその活性化抑制法
AUPQ230499A0 (en) * 1999-08-18 1999-09-09 University Of Sydney, The Evacuated glass panel with getter and method of construction thereof
EP1851050B1 (fr) * 2005-02-17 2011-08-03 SAES GETTERS S.p.A. Getter souple multicouche
JP4327747B2 (ja) * 2005-02-21 2009-09-09 双葉電子工業株式会社 非蒸発ゲッターを備えた電子デバイス及びその電子デバイスの製造方法
ES2378198B1 (es) * 2010-07-19 2012-12-28 Abengoa Solar New Technologies S.A. Nueva disposición de getter no evaporable para tubo colector solar.
US9388628B2 (en) 2012-07-31 2016-07-12 Guardian Industries Corp. Vacuum insulated glass (VIG) window unit with getter structure and method of making same
US9416581B2 (en) 2012-07-31 2016-08-16 Guardian Industries Corp. Vacuum insulated glass (VIG) window unit including hybrid getter and making same
EP3462472B1 (fr) 2017-09-29 2022-04-20 Tyco Electronics Componentes Electromecânicos Lda Boîtier d'étanchéité pour un dispositif électrique et relais scellé utilisant le boîtier d'étanchéité

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124671A (en) * 1964-03-10 Jgjtg
US2295694A (en) * 1941-06-19 1942-09-15 Westinghouse Electric & Mfg Co Water vapor getter
FR1109644A (fr) * 1954-08-09 1956-01-31 Philips Nv Système d'électrodes à couche d'arrêt
FR1482981A (fr) * 1966-04-19 1967-06-02 Pechiney Saint Gobain Matériaux poreux en alumine agglomérée
GB1269273A (en) * 1969-06-06 1972-04-06 Exxon Research Engineering Co Preparation of crystalline alumina by homogenous precipitation
DE2320617A1 (de) * 1973-04-24 1974-11-14 Deutsche Fernsprecher Gmbh Hermetisch abgedichtetes relais
DE2933443A1 (de) * 1979-08-17 1981-02-26 Siemens Ag Gehaeuse fuer ein elektrisches bauelement

Also Published As

Publication number Publication date
EP0061655B1 (fr) 1986-10-08
EP0061655A2 (fr) 1982-10-06
EP0061655A3 (en) 1983-04-27
CA1179311A (fr) 1984-12-11
US4430537A (en) 1984-02-07

Similar Documents

Publication Publication Date Title
DE2800722C2 (de) Vorrichtung zum Entfeuchten von Gas
EP0061655B2 (fr) Chambre de commutation pour contacts électriques isolée de l'environnement
DE3112564A1 (de) Gekapselte halbleiteranordnung
DE2652295A1 (de) Tieftemperatur-speicherbehaelter und verfahren zur herstellung solcher behaelter
DE2843577C2 (fr)
DE2823012A1 (de) Magnetisch steuerbarer schalter mit benetzten kontakten
DE2037288B2 (de) Mehrscheibenglaseinheit mit einer heizbelegung
EP1419539A2 (fr) Actionneur multicouche monolithique dans un boitier
DE3817361A1 (de) Gasdichtes schaltglied
DE2263044C3 (de) Verfahren zum Herstellen wärmeisolierender Teilchen
DE2824426C2 (de) Gehäuse zur Kapselung von elektrischen und/oder elektronischen Bauelementen
DE1933995A1 (de) Gas-adsorbierendes Element,Verfahren zu dessen Herstellung und eine adsorbierende Elemente enthaltende Vorrichtung
DE2104095C3 (de) Einrichtung zur Abkühlung eines IR-Detektors
US3124671A (en) Jgjtg
DE2828412C2 (de) Durchführung einer Leitung durch einen Wandteil eines Behälters
DE2931596C2 (de) Verfahren zum Einbringen eines Getterstoffes in das Gehäuse eines elektrischen Bauelementes
DE943001C (de) Anordnung zum Verhindern von UEbergangswiderstaenden an aus Silber oder Silberlegierungen bestehenden Kontakten, welch sich infolge der Reaktion zwischen dem Schwefelwasserstoff der Luft und dem Silber bilden
DE3200392A1 (de) Von der umbegung abgedichtete schaltkammer fuer elektrische kontakte
DE2512873C2 (de) Einrichtung zur Förderung der Elektronenentladung für eine Gasentladungs-Anzeigevorrichtung
DE3924341A1 (de) Luftfilter fuer gekaspelte elektronische geraete
DE2646680B1 (de) Elektrisches Bauelement mit Kunststoffgehaeuse
DE4407026A1 (de) Thermische Isolierung, Verfahren zur thermischen Isolierung, thermisch isolierendes Gehäuse und dessen Verwendung
DE1867074U (de) Behaelter fuer trockenmittel zum trocknen der luft in luftdicht abgeschlossenen raeumen, insbesondere gehaeusen hermetisch gekapselter relais.
DE673680C (de) Isolation fuer Ein- oder Durchfuehrung von Hochspannung in oder durch gaserfuellte Raeume, insbesondere Elektrofilter
DE363477C (de) Haengeisolator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: H01H 1/64

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19830524

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: TOP - PATENTS - ITALO INCOLLINGO

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 22749

Country of ref document: AT

Date of ref document: 19861015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3273689

Country of ref document: DE

Date of ref document: 19861113

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SIEMENS AKTIENGESELLSCHAFT, BERLIN UND MUENCHEN

Effective date: 19870515

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SDS-RELAIS (SCHWEIZ) AG

ITF It: translation for a ep patent filed

Owner name: TOP - PATENTS - ITALO INCOLLINGO

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19900328

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT CH DE FR GB IT LI

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;SDS - RELAIS AG

ET1 Fr: translation filed ** revision of the translation of the patent or the claims
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

EN3 Fr: translation not filed ** decision concerning opposition
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITTA It: last paid annual fee
ET Fr: translation filed

Free format text: BO 33/90 PAGE 159: ANNULATION

ET3 Fr: translation filed ** decision concerning opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19951220

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960229

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960305

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960308

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960701

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970317

Ref country code: AT

Effective date: 19970317

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19970331

Ref country code: CH

Effective date: 19970331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970317

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19971202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST