Wiring assembly for equipment and a method for producing the same

• US 5,281,765 A
• Filed: 05/27/1992
• Issued: 01/25/1994
• Est. Priority Date: 05/27/1992
• Status: Expired due to Term

• Current Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Inventors: Saka, Kazuhito, Iura, Kazuo, Yamano, Yoshiaki
• Primary Examiner(s): NIMMO, MORRIS
• Application Number:
  US07/889,140
• Time in Patent Office: 608 Days
• Field of Search: 174/117 F, 174/117 FF, 174/72 TR, 174/72 C, 174/72 R, 174/71 R, 174/84 R, 174/88 R, 174/117 R
• US Class Current: 174/117.00F
• CPC Class Codes: H01B 7/0838 Parallel wires, sandwiched between two insulating layers
• CPC Class Codes: H05K 1/0393 Flexible materials H05K1/038 takes precedence; specific organic compositions are classified in H05K1/0313 and subgroups
• CPC Class Codes: H05K 3/10 in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern

Abstract

A wiring assembly for equipment is produced at a low cost and has the same wiring connection as a flexible printed cable (FPC). Various kinds of terminal treatment processes are applied to the assembly. A circuit is formed by arranging polyurethane-insulated magnet wires 21 on a polyimide (PI) sheet 22 formed along a wiring circuit having bent, curved, and branched (jointed) portions. The formed circuit is coated with a PI sheet 23. Accordingly, an etching step such as in an FPC is not required. It is possible to produce a wiring assembly having the same function as an FPC at a low cost and to effect various kinds of terminal treatments as with an FPC. A wiring assembly having a single crossing in a circuit is formed by using insulated conductors.

Claims

1. A wiring assembly for equipment, comprising:

an insulation sheet formed along a wiring circuit having portions bent at a sharp angle, curved portions, and branched portions;

a plurality of generally round wire conductors arranged along said wiring circuit; and

a flexible insulation material for covering said round wire conductors on said sheet.

2. A wiring assembly according to claim 1, wherein said round wire conductors are conductors with insulation covers.

4. A wiring assembly according to claim 1, wherein said round wire conductors each have a diameter in the range of 0.03 mm to 1.0 mm and are selected from the group consisting of a soft copper wire, a tin-plated soft copper wire, other plated wire, a copper alloy wire, a clad wire made of different metals and a twisted wire including a plurality of wires.

5. A wiring assembly according to claim 2, wherein said conductors with insulation covers are magnet wires.

6. A wiring assembly according to claim 2, wherein said round wire conductors each have a diameter in the range of 0.03 mm to 1.0 mm and are selected from the group consisting of a soft copper wire, a tin-plated soft copper wire, other plated wire, a copper alloy wire, a clad wire made of different metals and a twisted wire including a plurality of wires.

3. A method of producing a wiring assembly for equipment, comprising the steps of:

arranging a plurality of generally round wire conductors on an insulation sheet in accordance with a wiring circuit having portions bent at a sharp angle, curved portions, and branched portions;

covering said round wire conductors with a flexible insulation material to insulate them and secure them to said sheet; and

cutting out excess portions of said sheet along said wiring circuit.