Electric wire with connector, and wire harness

• US 10,388,428 B2
• Filed: 07/20/2016
• Issued: 08/20/2019
• Est. Priority Date: 08/06/2015
• Status: Active Grant

• Current Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation), Sumitomo Electric Industries Limited (Sumitomo Corporation), Sumitomo Wiring Systems Limited (Sumitomo Corporation)
• Original Assignee: Autonetworks Technologies, Ltd. (Sumitomo Corporation)
• Inventors: Nakashima, Kazuo, Matsui, Katsufumi, Hamaguchi, Takaaki, Murata, Koki
• Primary Examiner(s): Thompson, Timothy J
• Assistant Examiner(s): Egoavil, Guillermo J
• Application Number:
  US15/748,777
• Publication Number:
  US 20190013113A1
• Time in Patent Office: 1,126 Days
• Field of Search: 174 72 A, 439275
• CPC Class Codes: H01B 3/42 polyesters; polyethers; polyacetals
• CPC Class Codes: H01B 3/46 silicones
• CPC Class Codes: H01B 7/00 Insulated conductors or cables characterised by their form
• CPC Class Codes: H01B 7/0045 Cable-harnesses
• CPC Class Codes: H01B 7/282 Preventing penetration of fluid , e.g. water or humidity, into conductor or cable
• CPC Class Codes: H01R 13/5205 Sealing means between cable and housing, e.g. grommet H01R13/5221 takes precedence
• CPC Class Codes: H01R 13/5216 characterised by the sealing material, e.g. gels or resins
• CPC Class Codes: H01R 43/24 Assembling by moulding on contact members

Abstract

An electric wire with a connector in which high adhesiveness can be ensured at both the interface between an insulator and a sealing layer and the interface between a connector housing and the sealing layer, and a wire harness using this electric wire with a connector are provided. The electric wire with a connector includes an insulated electric wire including a conductor and an insulator containing silicone with which the outer circumference of the conductor is coated, a connector terminal connected to a portion of the conductor exposed by stripping a portion of the insulator, a connector housing made of a resin in which an end of the insulated electric wire and a portion of the connector terminal are embedded, and a sealing layer provided between the surface of the insulator and the connector housing covering the outer circumference of the surface of the insulator at the end of the insulated electric wire. The sealing layer is constituted by a sticky adhesive.

Claims

1. An electric wire with a connector, comprising:

an insulated electric wire including a conductor and an insulator containing silicone with which an outer circumference of the conductor is coated;

a connector terminal including a crimped portion and a fitting portion, the crimped portion is connected to a portion of the conductor exposed by stripping a portion of the insulator, and the fitting portion has either a male terminal shape or a female terminal shape;

a connector housing made of a resin, the connector housing is molded around and contacts the exposed portion of the conductor and the crimped portion of the connector terminal such that the connector terminal is at least partially embedded in the connector housing and the connector housing prevents the connector terminal from being removed; and

a sealing layer provided between a surface of the insulator and the connector housing covering an outer circumference of the surface of the insulator at an end of the insulated electric wire,

wherein the sealing layer is constituted by a sticky adhesive.

2. The electric wire with a connector according to claim 1, wherein the sealing layer is adhered to both the insulator and the connector housing.

3. The electric wire with a connector according to claim 1, wherein one of a silicone-based sticky adhesive and a synthetic rubber-based sticky adhesive is used as the sticky adhesive.

4. The electric wire with a connector according to claim 1, wherein one of a polyester-based resin and a polyamide-based resin is used as a resin for forming the connector housing.

5. A wire harness comprising the electric wire with a connector according to claim 1.

6. The electric wire with a connector according to claim 1, wherein the connector housing is formed by insert molding around the outer circumference of the surface of the insulator at the end of the insulated electric wire on which the sealing layer is provided.