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US 2001/0017581 A1Published application
Electromagnet assembly for electromagnetic apparatus
AssigneeSanden Corporation
InventorYoshiyuki Suda
Life of this patent
Estimating the term…
Abstract
An electromagnet assembly for an electromagnetic apparatus has a ring member, a coil bobbin having an electrical wire wound a spool of the ring member, and a ring case. The ring member is disposed in an annular groove of the ring case. An opening is formed through the ring case adjacent to its closed end surface. A connector, which is disposed on the ring case and covers the opening, includes a case having a closed shape and a bottom, and a cap closing an open end of the case. Ends of the electrical wire and ends of a lead wire are joined in the connector. A projection portion is formed around a fringe portion of a first end surface of the cap and abuts an open end surface of the case. The cap is secured fixedly to the case after the projection portion is melted.
Claims10
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tubular spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to a closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and a second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein a projection portion is formed around a fringe portion of a first end surface of said cap and abuts said open end surface of said case, wherein said cap is secured fixedly to said case after said projection portion is melted.
5 more elements
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tubular spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to said closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and a second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein a projection portion is formed along an open end surface of said case and abuts a first end surface of said cap, wherein said cap is secured fixedly to said case after said projection portion is melted.
5 more elements
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tubular spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to a closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and a second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein an open end surface of said case is angled, and a fringe portion of a first end surface of said cap faces said open end surface of said case and is angled to conform to said open end surface of said case, wherein said cap is secured fixedly to said case after said open end surface of said case and said fringe portion of said first end surface of said cap are melted.
5 more elements
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tubular spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to a closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and a second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein a groove is formed on an interior side wall of said case and is adjacent to said open end surface of said case, and a fringe portion of said cap is inserted into said groove.
5 more elements
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tubular spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to a closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein a projection portion is formed around an interior wall at said open end surface of said case, and a hook portion is formed on a first end surface of said cap and extends against and engages said projection portion.
5 more elements
An electromagnet assembly for an electromagnetic apparatus comprising:
- a ring member comprising a tublar spool with a pair of annular flanges projecting radially from said spool;
- a coil bobbin comprising said ring member and an electrical wire, said electrical wire wound around said spool between said flanges;
- a ring case comprising an annular groove, which has an open edge, said coil bobbin disposed in said annular groove;
- an opening formed through said ring case adjacent to a closed end surface of said ring case;
- a connector comprising a case and a cap, said case having a closed shape and a bottom, said cap closing an open end of said case, said connector disposed on said ring case adjacent to said closed end surface and covering said opening;
- and
- a first end and a second end of said electrical wire, and a first lead wire and a second lead wire of an external electric circuit connected to said first and said second ends, respectively in said connector,
- wherein a projection portion is formed around an exterior wall at said open end surface of said case, and a hook portion is formed on a first end surface of said cap and extends against and engages said projection portion.
5 more elements
Dependencies are inferred from the claim text.