Coil assembly for electromagnetic valves

• US 5,153,550 A
• Filed: 12/28/1990
• Issued: 10/06/1992
• Est. Priority Date: 12/29/1989
• Status: Expired due to Fees

• Current Assignee: Aisin AW Company Limited (Aisin Corp.)
• Original Assignee: Aisin AW Company Limited (Aisin Corp.)
• Inventors: Saito, Masao, Miki, Nobuaki, Sugiura, Masayuki, Nasu, Takeshi, Sugiura, Kiyohiko
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): BARRERA, RAMON M
• Application Number:
  US07/633,616
• Time in Patent Office: 648 Days
• Field of Search: 336/90, 336/192, 336/107, 335/278
• US Class Current: 336/192
• CPC Class Codes: H01F 2007/062 Details of terminals or connectors for electromagnets
• CPC Class Codes: H01F 5/04 Arrangements of electric connections to coils, e.g. leads

Abstract

A coil assembly for an electromagnetic valve to be used in a vehicular hydraulic control circuit. The coil assembly includes an electromagnetic coil, a coil bobbin wound with the electromagnetic coil and having a flange, a terminal holder molded integrally with the flange of the coil bobbin, connection terminals fixed to the terminal holder, an insulating casing covering the coil bobbin and a terminal housing molded integrally with the insulating casing for covering the terminal holder and receiving the connection terminals to form a male connector terminal.

Claims

1. A coil assembly for an electromagnetic valve adaptable to a vehicular hydraulic control circuit, said coil assembly comprising:

a coil bobbin having a flange;

an electromagnetic coil wrapped on said coil bobbin and having leads extending from said coil bobbin;

a casing covering said coil bobbin and said coil;

a terminal holder external of said casing, fixed to said flange and receiving said leads;

electrical terminals connected to said leads in said terminal holder and mounted wholly within said terminal holder;

a terminal housing integrally molded with said casing and receiving said terminals to form a male connector external to said casing and

wherein said casing is axially slidable with respect to said coil bobbin and said terminal holder and wherein said terminal housing includes a wall portion radially extending relative to the coil and having a pair of apertures for receiving portions of said electrical terminals extending parallel to the axis of said coil and for thereby guiding said casing onto said coil bobbin in assembly.

2. The coil assembly of claim 1 wherein said terminal holder is integrally molded with said flange.

3. The coil assembly of claim 1 additionally comprising adhesive applied to the points where said leads exit said coil.