Terminal crimped wire

Patent metadata

Field	Value
Publication number	US-9543689-B2
Application number	US-201414496397-A
Country	US
Kind code	B2
Filing date	Sep 25, 2014
Priority date	Mar 30, 2012
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A terminal crimped wire includes a wire including a conductor and an insulation sheath covering a circumference of the conductor, a crimping terminal crimped to the wire, an anticorrosion material which covers an exposed part of the wire drawn out of the crimping terminal, and an elastic member provided along a circumference of the wire. The wire is crimped to the crimping terminal via the elastic member interposed therebetween.

First claim

What is claimed is:

1. A terminal crimped wire, comprising:
a wire including a conductor and an insulation sheath covering a circumference of the conductor;
a crimping terminal crimped to the wire;
an anticorrosion material which covers an exposed part of the wire drawn out of the crimping terminal; and
an elastic member provided along a circumference of the wire, wherein
the crimping terminal is crimped to the wire via the elastic member interposed therebetween,
the conductor is made of aluminum or an aluminum alloy,
the crimping terminal is crimped to the conductor exposed in a manner such that the insulation sheath at a terminal of the wire is removed, and to an end portion of the insulation sheath,
the elastic member comprises a cylindrical elastic sealing member which covers a circumference of the end portion of the insulation sheath towards the exposed conductor and a circumference of the exposed conductor adjacent to the end portion of the insulation sheath,
the crimping terminal comprises:
a conductor crimping portion crimping to the exposed conductor; and
an elastic member crimping portion located in an end portion of the crimping terminal on a wire connection side to crimp a part of the elastic member where the circumference of the exposed conductor is covered,
a gap in the crimping terminal crimped to the wire is covered with the anticorrosion material,
a groove is provided on an inner surface of the elastic member crimping portion in a direction perpendicular to the extending direction of the wire, and
an inner diameter of the elastic member is smaller than the diameter of the conductor such that the elastic member comes into close contact with the circumference of the insulation sheath and the circumference of the exposed conductor.

2. The terminal crimped wire according to claim 1 , wherein serrations are provided on an inner surface of the crimping terminal.

3. The terminal crimped wire according to claim 1 , wherein
the crimping terminal comprises a pair of crimping pieces integrally crimped to the exposed conductor and the insulation sheath,
the anticorrosion material is solder, and
the solder covers an outer surface of the conductor drawn out of the crimping pieces and a gap between the crimping pieces.

4. The terminal crimped wire according to claim 3 , wherein the part of the elastic member covering the circumference of the exposed conductor has a length in an extending direction of the wire which is set in a manner such that the part of the elastic member can fit in a terminal housing portion of a connector housing.

5. The terminal crimped wire according to claim 3 , wherein lip portions are provided on and project from an inner surface of the elastic member in a corrugated pattern in cross section so as to decrease an inner diameter of the elastic member.

6. The terminal crimped wire according to claim 3 , wherein the anticorrosion material is applied in a manner as to be distant from the insulation sheath in the extending direction of the wire.

7. The terminal crimped wire according to claim 3 , wherein the elastic member crimping portion is integrated with the conductor crimping portion in the extending direction of the wire without interposing a gap therebetween.

8. The terminal crimped wire according to claim 1 , wherein the cylindrical elastic sealing member of the elastic member comprises a cylindrical shape made of silicone rubber that is preliminarily fitted to the circumference of the insulation sheath before crimping.

9. The terminal crimped wire according to claim 1 , wherein the elastic member fills a gap between the crimping terminal and the insulation sheath by a deformation in an elastic restoring direction.

10. The terminal crimped wire according to claim 1 , wherein the anticorrosion material comprises solder, grease, or a hot-melt adhesive.

11. The terminal crimped wire according to claim 1 , wherein the inner diameter of the elastic member is set smaller than the diameter of the insulation sheath by a heat-shrinkable elastic material.

12. The terminal crimped wire according to claim 1 , wherein the elastic member crimping portion comprises an elastic member crimping portion bottom wall on which the cylindrical elastic sealing member is placed, and a pair of elastic member crimping portion side walls crimped in a manner as to cover the cylindrical elastic sealing member from both sides to the upper side of the cylindrical elastic sealing member.

13. The terminal crimped wire according to claim 12 , wherein a height of the respective elastic member crimping portion side walls is set such that upper edge portions of the pair of the elastic member crimping portion side walls come into contact with each other so as to cover a circumference of the cylindrical elastic sealing member.

14. The terminal crimped wire according to claim 12 , wherein:
a height of the respective elastic member crimping portion side walls is set according to a diameter of the cylindrical elastic sealing member;
the diameter of the cylindrical elastic sealing member is larger than that of the conductor by the thickness of the elastic member; and
the height of the respective elastic member crimping portion side walls is set to be higher than that of the respective conductor crimping portion side walls.

15. The terminal crimped wire according to claim 1 , wherein the cylindrical elastic sealing member comprises a crimp by the elastic member crimping portion such that a deformation level of the elastic member crimping portion at the point of crimping is smaller than that of the conductor crimping portion.

16. The terminal crimped wire according to claim 1 , wherein the elastic member comprises a deformation to enter the groove at a point of crimping the cylindrical elastic sealing member by the elastic member crimping portion such that the groove prevents the wire from being removed from the crimping terminals by a tensile force in the extending direction of the wire.

17. The terminal crimped wire according to claim 1 , wherein the inner surface of the elastic member crimping portion comprises a tapered surface inclined such that a thickness of the crimping terminal is decreased towards a rear edge surface thereof.

18. The terminal crimped wire according to claim 17 , wherein the elastic member is deformed along the tapered surface, so that a gap between the crimping terminal and the conductor in the elastic member crimping portion on the rear edge surface side is sealed with the elastic member.

19. The terminal crimped wire according to claim 1 , wherein a length of the cylindrical elastic sealing member in the extending direction of the wire is set such that the cylindrical elastic sealing member fit in a terminal housing portion of a connector housing in which the terminal crimped wire is housed.

Assignees

• Yazaki Corp

Inventors

• Sato Kei
• Takayama Tsutomu

Classifications

• H01R13/5213

  Covers · CPC title

• H01R13/52 Primary

  Dustproof, splashproof, drip-proof, waterproof, or flameproof cases · CPC title

• H01R4/20

  using a crimping sleeve {(H01R4/01 takes precedence)} · CPC title

• H01R4/62

  Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors (H01R4/68 takes precedence) · CPC title

• H01R4/188

  having an uneven wire-receiving surface to improve the contact · CPC title