US3254188A - Sealed multiple contact device - Google Patents

Sealed multiple contact device Download PDF

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Publication number
US3254188A
US3254188A US211534A US21153462A US3254188A US 3254188 A US3254188 A US 3254188A US 211534 A US211534 A US 211534A US 21153462 A US21153462 A US 21153462A US 3254188 A US3254188 A US 3254188A
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United States
Prior art keywords
contact
casing
portions
chambers
disposed
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Expired - Lifetime
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US211534A
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Lohs Willy
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Siemens and Halske AG
Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/282—Constructional details not covered by H01H51/281
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/281—Mounting of the relay; Encapsulating; Details of connections
    • 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 object of the invention is to avoid these drawbacks by the provision of a protective casing which has suicient mechanical strength and stability even when enclosing a relatively great number of contact lamellas fused thereto.
  • This object is realized by subdividing the interior space of the protective casing by means of one or more partition walls to form a plurality of individually delimited chambers each containing individual contacts sealed there- 1n.
  • the subdivision of the interior space of a protective tubing or casing, effected according to the invention, offers two advantages. First, to the entire body of the casing is imparted a mechanical stability and strength which exceeds that of a tubing or casing without partition walls, cntaining a plurality of contact sets, and which also exceeds the relative mechanical strength and stability of protective tubings containing only one contact or contact set. Moreover, the partition walls may be utilized as backings for the contact elements, so that the contact spacing, which is of considerable importance for the functions of the sealed-in contacts, can b e accurately determined.
  • the protective casing is advantageously formed of two elongated half shells each provided with a plurality of ribs. These half shells are placed together with the inside of one half shell facing that of the other half shell, said ribs forming the partition walls.
  • Half shells made of ceramic material are particularly suitable, since they can be produced true to shape, requiring for the joining of the two shell parts merely thin glazing layers which equalize slight irregularities of the material.
  • the contact lamellas may be advantageously shaped cylindrical at the areas of entry into the protective casing,
  • FIG. 1 shows in cross-sectional view a protective casice
  • FIG. 2 indicates an end view of the structure.
  • the protective casing 1 shown in FIG. 1 is subdivided by partition walls 2 into a plurality of mutually separated chambers 3.
  • a contact comprising two contact lamellas4 and 5.
  • From the respective contact lamellas extend outwardly directed cylindrically shaped terminal parts such as 8, 9, which are embraced by the recesses in the half shells of the casing.
  • the cylindrical terminal parts 8, 9 serve as soldering tabs.
  • the contact lamellas which are formed in the manner of leaf springs, are indicated at 4, 5, 10 and 11, such springs being provided with contact points (not shown).
  • FIG. 2 shows a protective casing comprising two ceramic half shells 12 and 13, containing a plurality of contact sets having cylindrical terminals forming soldering tabs 14 which project from the casing.
  • the cylindrical terminals are embraced by the semicylindrical recesses of the half shells of the protective casing.
  • the joining areas 1 1.
  • a sealed-in contact device comprising a unitary i casing having interiorly extending partition walls forming a plurality of elongated individually delimited parallelly extending chambers, and contact means disposed within each of said chambers, said contact means having movable portions disposed in the associated chamber operable to open or closed position, and stationary portions integrally formed therewith and complemental in shape 'to the adjacent portions of the associated chamber, said stationary portions being disposed in rigid sealing engagement with said adjacent portions of said casing and extending outwardly therefrom.
  • each contact means comprises two contact lamellas formed in the manner of leaf springs.
  • a sealed-in contact device comprising a casing formed from two half shells, each half shell forming partition Wall means extending in parallel with the longitudinal axis of the casing, and perpendicularly in transverse direction thereof, said half shells being united into a unitary structure, said partition walls forming a plurality of individually delimited chambers, -and contact means disposed within each of said chambers, said contact means having movable portions disposed in the associated chamber operable to open or closed positions, and stationary portions disposed in rigid sealing engagement with adjacent portions of said casing.
  • a contact device wherein said half Ishells are made of ceramic material, the jointact portion formed in the manner -of a leaf spring, said cylindrical portions being embraced in sealing relation P by the respective semicylindrical recesses and in part extending from said casing and the movalble contact portions of said members being disposed within the respective chambers formed by said half shells.
  • a contact device having a plurality of sealed in contacts each comprising two parts, each part having a cylindrical terminal portion and a tlat contact portion formed in the manner of a leaf spring, an elongated casing formed of two half shells made of ceramic material, each half shell having longitudinally extending ribs and having semicylindrical recesses formed therein between said ribs at the opposite ends thereof, with the ribs of the assembled half shells forming interior partition walls delimiting individual chambers for the respective contacts, and said recesses forming cylindrical openings through which the cylindrical terminals of the respective contact parts extend to the outside, with said cylindrical terminals forming the end closures of said chambers, the joining areas of said half shells and said contact parts being thinly glazed and fused to eachv other and to said cylindrical terminals to form -a unitary sealed structure, the at contact portions of the respective contacts being disposed within the respective chambers and being at leastV in part in engagement with walls of the corresponding chamber.

Description

May 31, 1966 w. LOHs SEALED MULTIPLE CONTACT DEVICE Filed July 23, 1962 lim linnn United States Patent O 3,254,188 SEALED MULTIPLE CONTACT DEVICE Willy Lohs, Munich, Germany, assignor to Siemens & Halske Aktiengesellschaft, Berlin and Munich, Germany, a corporation of Germany Filed July 23, 1962, Ser. No. 211,534 Claims priority, application Germany, Sept. 12, 1961,
S 38,880 6 Claims. (Cl. 200--166) The invention disclosed herein is concerned with a device comprising a protective tubing or casing including a plurality of sealed-in contacts. Devices of this kind are freqeuntly used in connection with relayor selectorarrangements for switching-through a plurality of conductors with the aid of a coil.
It is known to make protective casings or tubings of glass or ceramic -material, forming a single chamber in which are disposed a plurality of contacts or contact sets. The disadvantage of such a structure resides in that the protective casing has slight mechanical strength and that stresses are likely to occur owing to the closely adjacently positioned fusion areas of the contact members or lamellas, which may easily result in breakage of the protective casing.
The object of the invention is to avoid these drawbacks by the provision of a protective casing which has suicient mechanical strength and stability even when enclosing a relatively great number of contact lamellas fused thereto.
This object is realized by subdividing the interior space of the protective casing by means of one or more partition walls to form a plurality of individually delimited chambers each containing individual contacts sealed there- 1n.
The subdivision of the interior space of a protective tubing or casing, effected according to the invention, offers two advantages. First, to the entire body of the casing is imparted a mechanical stability and strength which exceeds that of a tubing or casing without partition walls, cntaining a plurality of contact sets, and which also exceeds the relative mechanical strength and stability of protective tubings containing only one contact or contact set. Moreover, the partition walls may be utilized as backings for the contact elements, so that the contact spacing, which is of considerable importance for the functions of the sealed-in contacts, can b e accurately determined.
'The protective casing is advantageously formed of two elongated half shells each provided with a plurality of ribs. These half shells are placed together with the inside of one half shell facing that of the other half shell, said ribs forming the partition walls. Half shells made of ceramic material are particularly suitable, since they can be produced true to shape, requiring for the joining of the two shell parts merely thin glazing layers which equalize slight irregularities of the material.
The contact lamellas may be advantageously shaped cylindrical at the areas of entry into the protective casing,
so that they can be fitted into the semicylindrical recesses of the ceramic half shells and fused likewise thereto with the aid of thin glazing layers.
Details of the invention will be explained with reference to the accompanying drawing showing an embodiment thereof.
FIG. 1 shows in cross-sectional view a protective casice,
ing having a plurality of partition walls forming individually delimited chambers containing contacts; and
FIG. 2 indicates an end view of the structure.
The protective casing 1 shown in FIG. 1 is subdivided by partition walls 2 into a plurality of mutually separated chambers 3. In each of these chambers is disposed a contact comprising two contact lamellas4 and 5. From the respective contact lamellas extend outwardly directed cylindrically shaped terminal parts such as 8, 9, which are embraced by the recesses in the half shells of the casing. The cylindrical terminal parts 8, 9 serve as soldering tabs. The contact lamellas which are formed in the manner of leaf springs, are indicated at 4, 5, 10 and 11, such springs being provided with contact points (not shown).
FIG. 2 shows a protective casing comprising two ceramic half shells 12 and 13, containing a plurality of contact sets having cylindrical terminals forming soldering tabs 14 which project from the casing. The cylindrical terminals are embraced by the semicylindrical recesses of the half shells of the protective casing. The joining areas 1. A sealed-in contact device comprising a unitary i casing having interiorly extending partition walls forming a plurality of elongated individually delimited parallelly extending chambers, and contact means disposed within each of said chambers, said contact means having movable portions disposed in the associated chamber operable to open or closed position, and stationary portions integrally formed therewith and complemental in shape 'to the adjacent portions of the associated chamber, said stationary portions being disposed in rigid sealing engagement with said adjacent portions of said casing and extending outwardly therefrom.
2. A contact device Iaccording to claim 1, wherein the movable portions of each contact means comprises two contact lamellas formed in the manner of leaf springs.
3. A sealed-in contact device comprising a casing formed from two half shells, each half shell forming partition Wall means extending in parallel with the longitudinal axis of the casing, and perpendicularly in transverse direction thereof, said half shells being united into a unitary structure, said partition walls forming a plurality of individually delimited chambers, -and contact means disposed within each of said chambers, said contact means having movable portions disposed in the associated chamber operable to open or closed positions, and stationary portions disposed in rigid sealing engagement with adjacent portions of said casing.
4. A contact device according to claim 3, wherein said half Ishells are made of ceramic material, the jointact portion formed in the manner -of a leaf spring, said cylindrical portions being embraced in sealing relation P by the respective semicylindrical recesses and in part extending from said casing and the movalble contact portions of said members being disposed within the respective chambers formed by said half shells.
6. A contact device having a plurality of sealed in contacts each comprising two parts, each part having a cylindrical terminal portion and a tlat contact portion formed in the manner of a leaf spring, an elongated casing formed of two half shells made of ceramic material, each half shell having longitudinally extending ribs and having semicylindrical recesses formed therein between said ribs at the opposite ends thereof, with the ribs of the assembled half shells forming interior partition walls delimiting individual chambers for the respective contacts, and said recesses forming cylindrical openings through which the cylindrical terminals of the respective contact parts extend to the outside, with said cylindrical terminals forming the end closures of said chambers, the joining areas of said half shells and said contact parts being thinly glazed and fused to eachv other and to said cylindrical terminals to form -a unitary sealed structure, the at contact portions of the respective contacts being disposed within the respective chambers and being at leastV in part in engagement with walls of the corresponding chamber.
References Cited by the Examiner UNITED STATES PATENTS KATHLEEN H. CLAFFY, Primary Examiner.
BERNARD A. GILHEANY, Examiner.
20 HERMAN o. JONES, Assistant Examiner.

Claims (1)

1. A SEALED-IN CONTACT DEVICE COMPRISING A UNITARY CASING HAVING INTERIORLY EXTENDING PARTITION WALLS FORMING A PLURALITY OF ELONGATED INDIVIDUALLY DELIMITED PARALLELLY EXTENDING CHAMBERS, AND CONTACT MEANS DISPOSED WITHIN EACH OF SAID CHAMBERS, SAID CONTACT MEANS HAVING MOVABLE PORTIONS DISPOSED IN THE ASSOCIATED CHAMBER OPERABLE TO OPEN OR CLOSED POSITION, AND STATIONARY PORTIONS INTEGRALLY FORMED THEREWITH AND COMPLEMENTAL IN SHAPE TO THE ADJACENT PORTIONS OF THE ASSOCIATED CHAMBER, SAID STATIONARY PORTIONS BEING DISPOSED IN RIGID SEALING ENGAGEMENT WITH SAID ADJACENT PORTIONS OF SAID CASING AND EXTENDING OUTWARDLY THEREFROM
US211534A 1961-09-12 1962-07-23 Sealed multiple contact device Expired - Lifetime US3254188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES38880U DE1850088U (en) 1961-09-12 1961-09-12 PROTECTIVE TUBE CONTACT WITH A VARIETY OF PROTECTIVE ROOMS, EACH WITH A CONTACT ARRANGEMENT.

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US3254188A true US3254188A (en) 1966-05-31

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US (1) US3254188A (en)
BE (1) BE622350A (en)
CH (1) CH404001A (en)
DE (1) DE1850088U (en)
FI (1) FI41177B (en)
GB (1) GB1002605A (en)
NL (1) NL282842A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348174A (en) * 1964-04-21 1967-10-17 Int Standard Electric Corp Blade armature contact in sealed housing
US3448617A (en) * 1967-05-18 1969-06-10 Gen Electric Liquid level sensor adapted for use in hydrocarbon fuels
US3473381A (en) * 1967-11-24 1969-10-21 Gen Electric Electric position sensor with switch locator
US3485982A (en) * 1965-10-14 1969-12-23 Robertshaw Controls Co Ultrasonically welded switch construction and method
US3651297A (en) * 1968-12-16 1972-03-21 Compac Engineering Inc Switch with housing of sealed rigid and thermal plastic members
US5960541A (en) * 1998-06-10 1999-10-05 Eaton Corporation Method of making circuit breaking contact with micro-contact interface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131230A (en) * 1982-10-07 1984-06-13 Weston William A Electric switching devices

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1375983A (en) * 1917-10-11 1921-04-26 Gen Electric Electric switching device
US2760173A (en) * 1953-02-09 1956-08-21 Wiegand Co Edwin L Electric terminal protection
US2945201A (en) * 1954-02-20 1960-07-12 Kabelschlepp Gmbh Multi-polar terminal connection for electric conductors
CA630961A (en) * 1961-11-14 Telefaximile Connector-switch
US3040213A (en) * 1956-11-15 1962-06-19 Corning Glass Works Composite glaceramic articles and method of making
US3067304A (en) * 1959-07-15 1962-12-04 Telefonbau & Normalzeit Gmbh Switching contacts controlled by magnetic fields

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA630961A (en) * 1961-11-14 Telefaximile Connector-switch
US1375983A (en) * 1917-10-11 1921-04-26 Gen Electric Electric switching device
US2760173A (en) * 1953-02-09 1956-08-21 Wiegand Co Edwin L Electric terminal protection
US2945201A (en) * 1954-02-20 1960-07-12 Kabelschlepp Gmbh Multi-polar terminal connection for electric conductors
US3040213A (en) * 1956-11-15 1962-06-19 Corning Glass Works Composite glaceramic articles and method of making
US3067304A (en) * 1959-07-15 1962-12-04 Telefonbau & Normalzeit Gmbh Switching contacts controlled by magnetic fields

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348174A (en) * 1964-04-21 1967-10-17 Int Standard Electric Corp Blade armature contact in sealed housing
US3485982A (en) * 1965-10-14 1969-12-23 Robertshaw Controls Co Ultrasonically welded switch construction and method
US3448617A (en) * 1967-05-18 1969-06-10 Gen Electric Liquid level sensor adapted for use in hydrocarbon fuels
US3473381A (en) * 1967-11-24 1969-10-21 Gen Electric Electric position sensor with switch locator
US3651297A (en) * 1968-12-16 1972-03-21 Compac Engineering Inc Switch with housing of sealed rigid and thermal plastic members
US5960541A (en) * 1998-06-10 1999-10-05 Eaton Corporation Method of making circuit breaking contact with micro-contact interface

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Publication number Publication date
BE622350A (en)
GB1002605A (en) 1965-08-25
FI41177B (en) 1969-06-02
NL282842A (en)
DE1850088U (en) 1962-04-19
CH404001A (en) 1965-12-15

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