US3343113A - Electrical coil assemblies - Google Patents

Electrical coil assemblies Download PDF

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Publication number
US3343113A
US3343113A US474692A US47469265A US3343113A US 3343113 A US3343113 A US 3343113A US 474692 A US474692 A US 474692A US 47469265 A US47469265 A US 47469265A US 3343113 A US3343113 A US 3343113A
Authority
US
United States
Prior art keywords
wire
lugs
electrical coil
terminal pieces
coil assemblies
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
US474692A
Other languages
English (en)
Inventor
Dougall John
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
Application granted granted Critical
Publication of US3343113A publication Critical patent/US3343113A/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
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads

Definitions

  • This invention relates to electrical coil assemblies of the kind comprising a generally cylindrical body of electrically insulating material, upon which is wound a length of electrically conducting wire, the ends of which are connected to terminal pieces.
  • the object of the invention is to provide a coil assembly of the kind specified, in a convenient form.
  • a coil assembly of the kind specified is characterised in that the terminal pieces are of plate-like form and are secured to lugs extending from the body and formed integrally therewith, these lugs being formed with respective apertures for the reception of a tool or a part thereof for making an electrical connection between. the wire end and terminal pieces.
  • the body may be formed with a generally radially extending slot in one of a pair of flanges bounding the portion of the body on which the wire is wound, the slot extending across substantially the whole of the radial width of the coil of wire.
  • FIGURE 1 is a side elevation view of a coil assembly constructed in accordance with the invention and FIGURE 2 is a plan view of the assembly.
  • an electrical coil assembly comprising a body formed from an electrically insulating material such as a synthetic resinous material.
  • the body is formed by an injection moulding process and is of generally hollow cylindrical form with two outwardly extending annular flanges at opposite ends respectively.
  • One of the annular flanges has formed integrally therewith a pair of generally radially outwardly extending apertured lugs 11, 12.
  • Each of the lugs 11, 12 has a first aperture 13 for reception of a tool and a second aperture 14 for reception of a fastening element for an electrical lead.
  • Each lug 11 or 12 is also formed with a pair of integral projections 16 arranged to engage in holes in an electrically conducting apertured plate-like terminal piece 17 or 18 assembled in face-to-face relationship with the lug 11 or 12. To secure the terminal pieces in place on the respective lugs, the ends of the projections 16, are pressed to form heads.
  • the terminal pieces 17, 18 extend over the apertures 13 in the lugs 11, 12 respectively, and opposite ends of 3,343,113 Patented Sept. 19, 1967 ice a length of wire 19 coiled on the body 10 between the annular flanges, are connected to the terminal pieces 17, 18 respectively by means of respective bent over tabs 20, formed on the terminal pieces 17, 18, the wire ends being secured in place by resistance welding.
  • One of the portions of a tool used in carrying out this resistance welding process is passed through the aperture 13 in the appropriate lug.
  • Each tab 20 has a V-shaped slot for the wire, to hold this in place prior to welding, the respective slots being indicated by numerals 24, 25.
  • the apertures 14 in the lugs 11, 12 are aligned with those in the terminal pieces respectively, the fastening elements thus making electrical connection with the terminal pieces.
  • the body 10 has a pair of integral projections 21 which are arranged to engage in a support bracket for the assembly the ends of those projections 21 being pressed to form heads.
  • a'slot 22 extending generally radially of the body. This slot 22 extends over substantially the whole radial width of the flange and is provided to facilitate retrieval of the end of the wire 19 at the inside of the coil, when this end of the wire is to be connected to a terminal piece.
  • a portion of the flange on the side on which the coil is wound is of reduced thickness as indicated by the dotted line 23, thus defining a cavity for the end of the wire.
  • An electrical coil assembly comprising a generally cylindrical body of electrically insulating material, the body having integral flanges at the ends thereof respectively, a pair of integral lugs extending from the body, a length of electrically conducting wire wound on the body, a pair of plate-like terminal pieces mounted upon the lugs respectively, means for connecting the ends of the wire onto the terminal pieces, and the lugs being formed with respective apertures for reception of a tool whereby said means for connecting the wire to the terminal pieces can be manipulated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Electromagnets (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Impact Printers (AREA)
US474692A 1964-08-07 1965-07-26 Electrical coil assemblies Expired - Lifetime US3343113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32173/64A GB1090855A (en) 1964-08-07 1964-08-07 Electrical coil assemblies

Publications (1)

Publication Number Publication Date
US3343113A true US3343113A (en) 1967-09-19

Family

ID=10334446

Family Applications (1)

Application Number Title Priority Date Filing Date
US474692A Expired - Lifetime US3343113A (en) 1964-08-07 1965-07-26 Electrical coil assemblies

Country Status (3)

Country Link
US (1) US3343113A (enrdf_load_stackoverflow)
JP (1) JPS4316187Y1 (enrdf_load_stackoverflow)
GB (1) GB1090855A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848208A (en) * 1973-10-19 1974-11-12 Gen Electric Encapsulated coil assembly
US4347493A (en) * 1977-02-28 1982-08-31 Emhart Industries, Inc. Coil assembly
US4353051A (en) * 1980-02-08 1982-10-05 Siemens Aktiengesellschaft Coil form for electric coils
US4462016A (en) * 1982-12-03 1984-07-24 At&T Technologies, Inc. Inductor coils with mechanically coupleable bobbins
US4754250A (en) * 1985-08-05 1988-06-28 Firma Wilhelm Sedlbauer Gmbh Holding device for toroidal cores provided with windings
US4755784A (en) * 1985-07-02 1988-07-05 Matsushita Electric Industrial Co., Ltd. Chip inductor
US5886451A (en) * 1997-10-30 1999-03-23 Ford Motor Company Wire routing design for a rotor of an electrical machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS487761U (enrdf_load_stackoverflow) * 1971-06-09 1973-01-27
JPS487762U (enrdf_load_stackoverflow) * 1971-06-09 1973-01-27
JPS5811094B2 (ja) * 1976-07-15 1983-03-01 日立照明株式会社 コイル装置の製造方法
JPS605052B2 (ja) * 1977-04-18 1985-02-08 日立照明株式会社 コル端子の接続方法
JPS60194309U (ja) * 1984-06-01 1985-12-24 愛三工業株式会社 電磁燃料噴射器のソレノイド
IT220749Z2 (it) * 1990-12-11 1993-11-08 Veglia Borletti Srl Bobina elettrica e relativo metodo di fabbricazione

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1100178A (en) * 1909-12-18 1914-06-16 Western Electric Co Spool-head.
US1360752A (en) * 1918-08-05 1920-11-30 Gen Electric Stationary induction apparatus
US2453158A (en) * 1945-05-11 1948-11-09 Osborne I Price Electromagnet
US2828393A (en) * 1953-11-10 1958-03-25 United Carr Fastener Corp Electrical assembly
US3117294A (en) * 1964-01-07 Bobbin with insulated lead-in means
US3142030A (en) * 1958-11-10 1964-07-21 Basic Products Corp Coil construction to facilitate tapping
US3230489A (en) * 1962-12-03 1966-01-18 Amerline Corp Bobbin with grooves in edge of flange

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117294A (en) * 1964-01-07 Bobbin with insulated lead-in means
US1100178A (en) * 1909-12-18 1914-06-16 Western Electric Co Spool-head.
US1360752A (en) * 1918-08-05 1920-11-30 Gen Electric Stationary induction apparatus
US2453158A (en) * 1945-05-11 1948-11-09 Osborne I Price Electromagnet
US2828393A (en) * 1953-11-10 1958-03-25 United Carr Fastener Corp Electrical assembly
US3142030A (en) * 1958-11-10 1964-07-21 Basic Products Corp Coil construction to facilitate tapping
US3230489A (en) * 1962-12-03 1966-01-18 Amerline Corp Bobbin with grooves in edge of flange

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848208A (en) * 1973-10-19 1974-11-12 Gen Electric Encapsulated coil assembly
US4347493A (en) * 1977-02-28 1982-08-31 Emhart Industries, Inc. Coil assembly
US4353051A (en) * 1980-02-08 1982-10-05 Siemens Aktiengesellschaft Coil form for electric coils
US4462016A (en) * 1982-12-03 1984-07-24 At&T Technologies, Inc. Inductor coils with mechanically coupleable bobbins
US4755784A (en) * 1985-07-02 1988-07-05 Matsushita Electric Industrial Co., Ltd. Chip inductor
US4754250A (en) * 1985-08-05 1988-06-28 Firma Wilhelm Sedlbauer Gmbh Holding device for toroidal cores provided with windings
US5886451A (en) * 1997-10-30 1999-03-23 Ford Motor Company Wire routing design for a rotor of an electrical machine

Also Published As

Publication number Publication date
GB1090855A (en) 1967-11-15
JPS4316187Y1 (enrdf_load_stackoverflow) 1968-07-05

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