US3694783A - Relay coil former for a flat-type relay - Google Patents

Relay coil former for a flat-type relay Download PDF

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Publication number
US3694783A
US3694783A US99134A US3694783DA US3694783A US 3694783 A US3694783 A US 3694783A US 99134 A US99134 A US 99134A US 3694783D A US3694783D A US 3694783DA US 3694783 A US3694783 A US 3694783A
Authority
US
United States
Prior art keywords
coil former
flat
relay
slot
central part
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
US99134A
Other languages
English (en)
Inventor
Rolf Henrik Collin
Arne Rudolf Kjallstrom
Rune Nils Anders Thysk
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US3694783A publication Critical patent/US3694783A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings

Definitions

  • ABSTRACT In order to simplify the production of electromagnetic flat-type relays a separately manufactured relay coil former is slotted along one edge so that the flat magnet core can be inserted from the side and snapped into its position in the coil former.
  • the invention refers to a relay coil former of insulating material for a flat-type relay wherein the coil former is cast in one piece.
  • the magnet core of such a relay has until now either been baked in as a part of the coil former or has been pushed along its axial direction into a coil former which has been cast separately.
  • FIG. l shows an example of a flat-type relay for a jack strip in a telephone exchange, having a coil former cast in one piece, which is shown separately in FIG. 2 seen from the side, in
  • FIG. 3 seen from the left end and in FIG. 4 in section seen from the left end. 1
  • FIG. 1 the flat-type relay is seen from the side, so
  • Tongue 7 has such a thickness and is so arranged that it forms a residual plate between the armature 3 of the relay and the end of the magnet core I.
  • the armature is in a known manner pivoted on the other end of the core on a fulcrum 16. Armature 3 is held with pins and a spring arrangement which presses the armature against the magnet core and simultaneously lifts the armature when the relay is not operated.
  • the visual indicator When the armature is released, the visual indicator will fall down and another arm on the same prevents the inserting of the plug, whereby simultaneously contact is obtained between the springs 11.
  • FIG. 3 shows how the holding of a e o ptf h a fi es o p hg oi l t ofig s a slot 8 as is apparent by FIGS. 2, 3 and 4, in one plane through one of the edges of the intermediate part 6 and through rims 4 and 5.
  • the slot is suitably a little more narrow than the thickness of the magnet core.
  • the magnet core is placed in the coil former by inserting it from the side after the slot 8 has been spread, which is possible if the coil former is manufactured from a material which is a little resilient, for example nylon.
  • the slot8 is released to its normal width and the magnet core is retained in the coil former.
  • An electromagnetic flat-type relay comprising a flat iron core having ends which are wider than its central part, an armature arranged substantially parallel to said central part, a coil former having an intermediate part and two rims, said coil former being cast in one piece from a resilient insulating material and being provided with a slot in one plane through one of the edges of the intermediate part and through said rims, said slot being narrower than the thickness of the central part of said core and said central part being inserted in the coil former from the side by temporarily spreading said slot, and an energizing coil wound upon said coil former.
  • An electromagnetic flat-type relay according to claim 1 further comprising a protruding tongue integrally cast with one of said rims for providing a residual plate between said core and said armature.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Breakers (AREA)
  • Electromagnets (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
US99134A 1970-02-23 1970-12-17 Relay coil former for a flat-type relay Expired - Lifetime US3694783A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02238/70A SE331717B (cs) 1970-02-23 1970-02-23

Publications (1)

Publication Number Publication Date
US3694783A true US3694783A (en) 1972-09-26

Family

ID=20259607

Family Applications (1)

Application Number Title Priority Date Filing Date
US99134A Expired - Lifetime US3694783A (en) 1970-02-23 1970-12-17 Relay coil former for a flat-type relay

Country Status (9)

Country Link
US (1) US3694783A (cs)
AU (1) AU2369970A (cs)
BE (1) BE761974A (cs)
DE (1) DE2064826A1 (cs)
FR (1) FR2080692A1 (cs)
GB (1) GB1286604A (cs)
NL (1) NL7100168A (cs)
NO (1) NO126247B (cs)
SE (1) SE331717B (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208105A (en) * 1984-10-05 1993-05-04 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Flame-retarded composite fiber
DE19518349C1 (de) * 1995-05-18 1996-05-30 Siemens Ag Spulenkörper, insbesondere für Kleinrelais sowie Verfahren zu dessen Herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1858562A (en) * 1929-09-02 1932-05-17 Siemens Ag Electromagnetic relay
US2425155A (en) * 1946-04-16 1947-08-05 Gen Electric Coil support
US3218592A (en) * 1962-09-28 1965-11-16 Cons Electronics Ind Coil form assembly
US3358256A (en) * 1965-04-08 1967-12-12 Sansui Electric Co Miniature low frequency transformer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1858562A (en) * 1929-09-02 1932-05-17 Siemens Ag Electromagnetic relay
US2425155A (en) * 1946-04-16 1947-08-05 Gen Electric Coil support
US3218592A (en) * 1962-09-28 1965-11-16 Cons Electronics Ind Coil form assembly
US3358256A (en) * 1965-04-08 1967-12-12 Sansui Electric Co Miniature low frequency transformer

Also Published As

Publication number Publication date
NL7100168A (cs) 1971-08-25
NO126247B (cs) 1973-01-08
SE331717B (cs) 1971-01-11
AU2369970A (en) 1972-06-29
GB1286604A (en) 1972-08-23
BE761974A (fr) 1971-07-01
FR2080692A1 (cs) 1971-11-19
DE2064826A1 (de) 1971-09-16

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