US3833879A - Contact socket for electrical devices,such as relays - Google Patents

Contact socket for electrical devices,such as relays Download PDF

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Publication number
US3833879A
US3833879A US00350317A US35031773A US3833879A US 3833879 A US3833879 A US 3833879A US 00350317 A US00350317 A US 00350317A US 35031773 A US35031773 A US 35031773A US 3833879 A US3833879 A US 3833879A
Authority
US
United States
Prior art keywords
window
chamber
base
wings
twisting
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
US00350317A
Other languages
English (en)
Inventor
M Aidn
Ngler G Furtwa
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
Application granted granted Critical
Publication of US3833879A publication Critical patent/US3833879A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H01R13/415—Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/16—Fastening of connecting parts to base or case; Insulating connecting parts from base or case

Definitions

  • ABSTRACT A contact socket for electrical devices including a base member made from insulating material and having an opening in the form of an elongated window opening to one side of the base member and leading to an enlarged diameter chamber opening to the opposite side of the base member.
  • the chamber terminates into a reduced diameter neck portion leading along a portion of the window for receiving a narrowed neck of a contact member.
  • the contact member has a widened portion longer than the elongated window and has a shoulder engaging the top of the base member, a narrower portion fitting in the elongated window and a connecting portion leading from the narrower portion.
  • a pair of wings extend radially from the connecting portion beneath the narrower portion.
  • the enlarged diameter chamber has oppositely inclined top surfaces converging to an apex.
  • Stamped flat contact studs have formerly been connected to an insulating member by twisting over a plastic edge of insulating material. This results in an inexpensive method of affixing the contact parts to the insulating member. With such contact parts, a contact member is provided which becomes thinner in the area of twisting over the plastic edge of the insulating material.
  • the mere twisting of the thinned portion of the contact part over the plastic edge is not sufficient to hold the contact in firm position, and in many cases, the twisted connection of the thinner contact lugs can retwist as in a coarse thread due to an axial force on the contact lugs.
  • thicker twisting connections are used, many times the connecting lugs will tear and partially shear off and lose their ability to hold the contacts in the plastic insulating member.
  • the edge of the insulating member engaged by the connecting lugs oftentime breaks off during twisting or during use of the socket device, due to the exceeding of the allowable stresses on the contacts, with the resultant loss in a reliable attachment of the contact parts to the insulating member.
  • the present invention overcomes these difficulties by creating a camming attachment for the contact parts in an insulating socket, which in addition to avoiding the disadvantages of twisted contact connections heretofore mentioned, ensures a tight fit of the contact in the insulating member.
  • the contact member may be sealed in its socket by its fit in its socket or by additional sealing material placed in the socket, which seals the solder of the soldered connection from passing through the insulating member and provides a mechanical protection against the liability of the contact member to be pressed back out of its socket.
  • An advantage of the present invention is that a stable mounting for a contact member in the socket of an insulating member is attained by twisting the contact part to be brought into tightened engagement with the contact member by camming shoulders formed within the insulating member.
  • a further advantage of the invention is the arrangement of the contact member and window and socket in the insulating member effecting closing of the window of the insulating member and assuring that axial forces on the contact part will have no affect on the position of the contact parts or the insulating member.
  • an insulating member with an elongated window open.- ing to the top side thereof and an enlarged diameter chamber opening to the bottom side thereof and providing a free space in which a twisting can take place along with a twisting chamber in the elongated window, and the provision of the contact member with a shoulder engaging one side of the insulating member and a. twistable neck in the twisting chamber.
  • A- further advantage of this connection is the attaining of a tight mounting of the contact parts and the retaining of the contact parts in the insulating memberto relatively close tolerances.
  • FIG. 1 is a vertical sectional view taken through a part of an insulating member or base for the socket and showing the contact part in its twisted and tightened position in the insulating member.
  • FIG. 2 is a bottom plan view of the contact and insulating member shown in FIG. 1.
  • FIG. 3 is a sectional view taken through the contact member along the longer dimensions of the window.
  • FIG. 4 is a cross sectional view taken through the insulating member and taken at right angles with respect to FIG. 3.
  • FIG. 5 is a view in side elevation of a contact member constructed in accordance with the principles of the present invention.
  • FIG. 6 is an end view of the contact member shown in FIG. 5.
  • the connecting end 3 may be connected to a circuit through a soldered connection, or may be a plug-in contact member, if required or desired.
  • the base member 1 has an elongated window 5 opening-to the top thereof and of a length substantially equal to the length of a reduced width shouldered part 11 of the contact member depending from a shoulder 10 of said contact member.
  • the window 5 leads to a twisting chamber 6 formed by partial cylindrical enlargements of the side wall portions of said window beneath the top of the base I.
  • Said window and twisting chamber in turn terminate into a downwardly opening enlarged diameter chamber 9 having a generally cylindrical side wall and inclined top walls 8 converging to an apex 11a in alignment with the longitudinal center of the window 5, and extending beyond opposite ends of said window.
  • the inclined top walls 8 of the chamber 9 form camming surfaces engaged by laterally extending wings 7 extending from opposite sides of the connecting part 3 and defining the lower margins of a neck 12 of the contact part.
  • the inclined top portions 8 of the chamber 9 are shown in FIG. 4 as inclined in opposite directions and adapted to be engaged by top surfaces 7a of the wings 7 and serve as camming surfaces to bring the shoulder 10 into tight engagementwith the tops of the base 1 upon twisting the connection part 3 and wings 7 about the reduced neck 12 of the connector.
  • the contact In assembling and tightening the contact to the base 1, the contact is inserted in the top of the base through the window with the reduced width portion 11 extending along said window until the shoulder engages a top of the base.
  • the top surfaces 7a of the wings 7 will then extend along the apex of oppositely inclined top walls 8 of the enlarged diameter chamber 9.
  • the connector 3 and wings 7 may then be twisted to twist the neck 12 and move the top surfaces 7a of the wings 7 along the oppositely inclined surfaces 8 and cam said wings to draw the shoulder 10 into tight engagement with the base 1, to form a rigid mounting for the contact part 2 and its connecting end 3 in said base, by a simple twisting action.
  • the connecting part 3 and wings 7 may be twisted substantially 45 relative to the center line of the window 5 to provide the rigid connection required.
  • the chamber 9 may be filled with an insulating compound to seal the solder side of the window 5 and to further increase the stability of the connecting part 3 in the base 1.
  • a base made from insulating material having top and bottom surfaces and an elongated window leading through the top surface thereof and having communication with the bottom surface thereof, a main chamber leading from said window and opening to the bottom surface of the base and having at least one arcuately inclined top camming surface,
  • twisting chamber extending upwardly of said inclined camming surface and recessed in side walls of said window
  • top of said main chamber forms said inclined camming sur face and is arcuately inclined upwardly in opposite directions toward an apex in alignment with the longitudinal center of said window, accommodating the top surfaces of said wings to lie along said apex when inserting the contact part through said window and having camming engagement with the top surfaces of said wings to cam said shoulder of said contact part into tight engagement with the top surface of said base, upon twisting of said wings about said neck.
  • twisting chamber comprises alignedrecesses in said parallel side walls of said window having partial cylindrical wall portions, with a top wall closing the twisting chamber to the top surface except through the window, and with said window forming a generally cylindrical twisting chamber.
US00350317A 1972-04-17 1973-04-12 Contact socket for electrical devices,such as relays Expired - Lifetime US3833879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2218501A DE2218501C2 (de) 1972-04-17 1972-04-17 Gerätesockel, vorzugsweise für Relais

Publications (1)

Publication Number Publication Date
US3833879A true US3833879A (en) 1974-09-03

Family

ID=5842204

Family Applications (1)

Application Number Title Priority Date Filing Date
US00350317A Expired - Lifetime US3833879A (en) 1972-04-17 1973-04-12 Contact socket for electrical devices,such as relays

Country Status (13)

Country Link
US (1) US3833879A (de)
JP (1) JPS5616507B2 (de)
AT (1) AT332928B (de)
CH (1) CH558592A (de)
CS (1) CS166839B2 (de)
DE (1) DE2218501C2 (de)
DK (1) DK136445C (de)
ES (1) ES413373A1 (de)
FR (1) FR2180840B1 (de)
GB (1) GB1397691A (de)
IT (1) IT983734B (de)
NL (1) NL174305C (de)
SE (1) SE383440B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997393A (en) * 1989-03-23 1991-03-05 Littelfuse, Inc. Housing assembly for plug-in electrical element having blade-type terminals
US5139443A (en) * 1989-03-23 1992-08-18 Littelfuse, Inc. Housing assembly for plug-in electrical element having blade-type terminals
US5256087A (en) * 1990-02-20 1993-10-26 Siemens Aktiengesellschaft Method for fastening a flat plug in the base of an electrical component and a base produced in accordance with the method
US5588882A (en) * 1995-04-28 1996-12-31 Helms-Man Industrial Co., Ltd. Wall socket with twist lock prongs
EP0806814A2 (de) * 1996-05-10 1997-11-12 Molex Incorporated Elektrischer Steckverbinder mit verbesserten Kontaktrückhaltemitteln
US5886322A (en) * 1996-01-16 1999-03-23 Black & Decker Inc. Assembly of an electrical contact terminal in an electrical appliance
US6752666B1 (en) 2003-01-31 2004-06-22 Hon Hai Precision Ind. Co., Ltd Low insertion force electrical connector assembly
US6783407B2 (en) 2003-01-31 2004-08-31 Hon Hai Precision Ind. Co., Ltd. Low insertion force electrical connector assembly
US6835107B2 (en) 2003-01-31 2004-12-28 Hon Hai Precision Ind. Co., Ltd. Electrical connector

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55136187U (de) * 1979-03-20 1980-09-27
DE3113123A1 (de) * 1981-03-27 1982-10-07 Fritz Kuke Kg, 1000 Berlin Kontaktfederbefestigung in einbauteilen
DE4011980A1 (de) * 1990-04-12 1991-10-17 Cherry Mikroschalter Gmbh Steckschalter
DE4239261C2 (de) * 1992-04-03 1996-11-28 Taller Gmbh Steckerbrücke für einen elektrischen Gerätestecker mit einem Paar von Stromleiterstiften (Kontaktstiften) und gegebenenfalls einem Schutzleiterstift (Erdstiift)
JPH0671364U (ja) * 1993-03-19 1994-10-07 サンワ車輌株式会社 運搬車
DE29515592U1 (de) * 1995-09-29 1995-11-30 Siemens Ag Abgewinkelte Einpreß-Federleiste zum Einpressen in Bohrungen einer Leiterplatte
DE19738654A1 (de) * 1997-09-04 1999-03-11 Nokia Deutschland Gmbh Kontaktstecker
JP6068061B2 (ja) * 2012-08-31 2017-01-25 矢崎総業株式会社 端子圧入構造
CN110233383A (zh) * 2019-06-21 2019-09-13 贵州航天电器股份有限公司 一种电连接器接触件的固定结构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4327564Y1 (de) * 1965-11-09 1968-11-14

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4997393A (en) * 1989-03-23 1991-03-05 Littelfuse, Inc. Housing assembly for plug-in electrical element having blade-type terminals
US5139443A (en) * 1989-03-23 1992-08-18 Littelfuse, Inc. Housing assembly for plug-in electrical element having blade-type terminals
US5256087A (en) * 1990-02-20 1993-10-26 Siemens Aktiengesellschaft Method for fastening a flat plug in the base of an electrical component and a base produced in accordance with the method
US5588882A (en) * 1995-04-28 1996-12-31 Helms-Man Industrial Co., Ltd. Wall socket with twist lock prongs
US5886322A (en) * 1996-01-16 1999-03-23 Black & Decker Inc. Assembly of an electrical contact terminal in an electrical appliance
EP0806814A2 (de) * 1996-05-10 1997-11-12 Molex Incorporated Elektrischer Steckverbinder mit verbesserten Kontaktrückhaltemitteln
US5692928A (en) * 1996-05-10 1997-12-02 Molex Incorporated Electrical connector having terminals with improved retention means
EP0806814A3 (de) * 1996-05-10 1998-12-02 Molex Incorporated Elektrischer Steckverbinder mit verbesserten Kontaktrückhaltemitteln
US6752666B1 (en) 2003-01-31 2004-06-22 Hon Hai Precision Ind. Co., Ltd Low insertion force electrical connector assembly
US6783407B2 (en) 2003-01-31 2004-08-31 Hon Hai Precision Ind. Co., Ltd. Low insertion force electrical connector assembly
US6835107B2 (en) 2003-01-31 2004-12-28 Hon Hai Precision Ind. Co., Ltd. Electrical connector

Also Published As

Publication number Publication date
IT983734B (it) 1974-11-11
SE383440B (sv) 1976-03-08
CH558592A (de) 1975-01-31
CS166839B2 (de) 1976-03-29
GB1397691A (en) 1975-06-18
NL174305B (nl) 1983-12-16
DK136445B (da) 1977-10-10
AT332928B (de) 1976-10-25
JPS5616507B2 (de) 1981-04-16
FR2180840B1 (de) 1977-08-19
FR2180840A1 (de) 1973-11-30
NL174305C (nl) 1984-05-16
NL7305148A (de) 1973-10-19
DE2218501C2 (de) 1979-10-04
ATA252973A (de) 1976-02-15
DE2218501B1 (de) 1973-09-27
DK136445C (da) 1978-04-17
JPS4916844A (de) 1974-02-14
ES413373A1 (es) 1976-06-01

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