JP2013187004A - Electric wire with connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a protection structure, which covers a gap between an electric wire and a connector connected with the electric wire, by a simple process without impairing the heat resistance and the durability.SOLUTION: An electric wire with a connector 1 includes: an insulation electric wire 9; a connector 8 connected with an end part of the insulation electric wire 9; and a covering member 7 which covers a gap between the connector 8 and the insulation electric wire 9. The covering member 7 is composed of a member formed by winding an ultraviolet cure adhesive tape, having a two layer structure composed of a base substance made of a tape like ultraviolet cure resin and an adhesive, around a portion ranging from the connector 8 to the insulation electric wire 9 so that the adhesive is positioned at the inner side and curing the portion around which the tape is wound.

Description

  The present invention relates to an electric wire with a connector having an electric wire and a connector connected to an end thereof.

  In a wire harness mounted on a vehicle such as an automobile, a protective structure such as a dust-proof structure that prevents foreign matter from entering a gap between a wire and a connector connected to an end of the wire or a waterproof structure that prevents liquid from entering is employed. There are many cases. For example, the electric wire with connector shown in Patent Document 1 includes a heat-shrinkable tube that covers a portion extending from the connector to the electric wire, and the heat-shrinkable tube prevents a foreign substance from entering by covering the gap between the electric wire and the connector.

JP 2000-208174 A

  The protection structure shown in Patent Document 1 usually requires a step of connecting the connector to the electric wire while passing the electric wire before the connector is connected to the heat-shrinkable tube so that the tube before the contraction is not pulled out of the electric wire. And However, there is a need for a protective structure that can be realized by a simpler process than such a process.

  Further, if the connector and the electric wire are passed through the heat shrinkable tube after the connector is connected to the electric wire, it is difficult to pass the square connector through the heat shrinkable tube, resulting in a problem that work efficiency is deteriorated.

  Moreover, in the electric wire with a connector, it is possible that an adhesive tape is wound around the part ranging from a connector to an electric wire for dust prevention. However, a general adhesive tape does not sufficiently satisfy the heat resistance and durability required as a dustproof structure for a connector.

  An object of this invention is to be able to implement | achieve the protective structure which covers the clearance gap between an electric wire and the connector connected to this by a simple process, without impairing heat resistance and durability.

  The electric wire with a connector concerning the 1st mode of the present invention is provided with each component shown below. The first component includes an electric wire, a connector connected to an end portion of the electric wire, and a covering member that covers a gap between the connector and the electric wire. The covering member is cured by winding an ultraviolet curable adhesive tape having a two-layer structure of a substrate made of a tape-like ultraviolet curable resin and an adhesive, with the adhesive inside the portion extending from the connector to the wire. It consists of members.

  The electric wire with connector according to the second aspect of the present invention is an aspect of the electric wire with connector according to the first aspect. The electric wire with connector according to the second aspect further includes an elastic sealing agent filled between the covering member and the electric wire.

  According to the present invention, the covering member that covers the gap between the electric wire and the connector connected to the electric wire is wound around the connector and the electric wire, and the ultraviolet light is applied to the ultraviolet curable adhesive tape by a simple process. It is formed. That is, there is no need to connect the connector to the electric wire while preventing the threaded tube from coming out of the electric wire. Moreover, the ultraviolet curable resin which comprises a coating | coated member fully satisfy | fills the heat resistance and durability requested | required as a dust-proof structure which covers the clearance gap between an electric wire and a connector.

  Moreover, in the electric wire with a connector according to the present invention, if the sealing agent having elasticity is filled between the covering member and the electric wire, the covering member and the sealing agent fulfill a waterproof function in addition to the dustproof function.

It is a side view of electric wire 1 with a connector concerning a 1st embodiment of the present invention. It is a side view of the ultraviolet curing adhesive tape employ | adopted in the electric wire 1 with a connector. It is a perspective view of the tape winding process in the manufacturing process of the electric wire 1 with a connector. It is sectional drawing of 1A of electric wires with a connector which concerns on 2nd Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention.

<First Embodiment>
First, the structure of the electric wire 1 with a connector according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the electric wire with connector 1 includes a plurality of insulated electric wires 9, a connector 8, and a covering member 7.

  The insulated wire 9 is composed of a conductor whose main component is a metal such as copper or aluminum and an insulating coating covering the periphery of the conductor. A terminal 91 is connected to the core wire at the end of the insulated wire 9.

  The connector 8 is a member made of a non-conductive resin member and connected to the ends of the plurality of insulated wires 9. The connector 8 holds the ends of the plurality of insulated wires 9 in a certain positional relationship.

  When the connector 8 is connected to a mating connector (not shown), the terminals 91 at the ends of the plurality of insulated wires 9 held by the connector 8 are connected to the terminals of the mating wires held by the mating connector. Electrically connected.

  The covering member 7 is a member that covers the gaps between the connector 8 and the plurality of insulated wires 9. The covering member 7 is a member obtained by curing the ultraviolet curable adhesive tape 70 as shown in FIG. The ultraviolet curable adhesive tape 70 has a two-layer structure of a base 71 and an adhesive 72 made of a tape-like ultraviolet curable resin having flexibility.

  The ultraviolet curable resin, which is a material of the tape-like substrate 71, is a synthetic resin that cures from a flexible state in response to ultraviolet light energy. Various kinds of such synthetic resins (ultraviolet curable resins) are conceivable, for example, resins mainly composed of acrylate, unsaturated polyester, epoxy, oxetane, vinyl ether, or the like.

  The adhesive 72 is, for example, an acrylic adhesive, a rubber adhesive, or a silicone adhesive.

  As shown in FIG. 3, the ultraviolet curable adhesive tape 70 is wound around the portion extending from the connector 8 to the insulated wire 9 with the adhesive 72 inside, so that the gap between the connector 8 and the insulated wire 9 is covered. It is formed. Further, the ultraviolet curable adhesive tape 70 wound around the connector 8 and the insulated wire 9 is cured at a portion of the base 71 when irradiated with ultraviolet light. As a result, a covering member 7 is formed which includes a member obtained by curing the base 71 having a shape that covers the gap between the connector 8 and the insulated wire 9 and an adhesive 72 that adheres the member to the connector 8 and the insulated wire 9. .

  As described above, the covering member 7 is made of a member in which the ultraviolet curing adhesive tape 70 is wound around the portion extending from the connector 8 to the insulated wire 9 with the adhesive 72 inside, and is cured. The covering member 7 is held in a portion from the connector 8 to the insulated wire 9 by the adhesive force of the adhesive 72.

  In addition, as shown in FIG. 3, the connector 8 usually has a protruding portion 81 formed at a part thereof. When the ultraviolet curable adhesive tape 70 is wound around the region of the connector 8 where the protrusion 81 is formed, a recess in which the protrusion 81 of the connector 8 is fitted is formed on the inner surface of the covering member 7. In this case, the covering member 7 is securely held by the portion extending from the connector 8 to the insulated wire 9 by the depression of the inner side surface being caught by the protruding portion 81 of the connector 8.

<Effect>
In the electric wire with connector 1, the covering member 7 that covers the gap between the insulated wire 9 and the connector 8 connected thereto wraps the ultraviolet curable adhesive tape 70 around the connector 8 and the insulated wire 9, and applies ultraviolet light to the ultraviolet curable adhesive tape 70. It is formed by a simple process of irradiating the film. That is, the process of connecting the connector 8 to the insulated wire 9 while preventing the threaded tube from coming out of the insulated wire 9 is unnecessary. In addition, the ultraviolet curable resin constituting the covering member 7 sufficiently satisfies the heat resistance and durability required as a dust-proof structure that covers the gap between the insulated wire 9 and the connector 8.

Second Embodiment
Next, an electric wire with connector 1A according to a second embodiment of the present invention will be described with reference to FIG. 1 A of electric wires with a connector have the structure to which one part component was added compared with the electric wire 1 with a connector shown by FIG.

  FIG. 4 is a cross-sectional view of a portion where the covering member 7 is formed in the connector-attached electric wire 1A. 4, the same components as those shown in FIG. 1 are given the same reference numerals. Hereinafter, only differences between the connector-attached electric wire 1A and the connector-attached electric wire 1 will be described.

  1 A of electric wires with a connector are equipped with the insulated wire 9, the connector 8, the coating | coated member 7, and the sealing agent 6. FIG. The insulated wire 9, the connector 8, and the covering member 7 in the electric wire with connector 1A have the same structure as the insulated wire 9, the connector 8, and the covering member 7 in the electric wire with connector 1.

  The sealing agent 6 is a waterproofing agent having elasticity filled between the covering member 7 and the insulated wires 9 and between the plurality of insulated wires 9. The sealant 6 is made of an elastic resin material such as a silicone resin.

  The sealant 6 is formed so as to fill the gap between the insulated wire 9 and the connector connected to the end thereof and between the plurality of insulated wires 9 before the ultraviolet curable adhesive tape 70 is wound. For example, the sealant 6 is formed by solidifying a sealant applied in a fluid state by heating or drying.

  The ultraviolet curable adhesive tape 70 is wound from above the sealant 6 around a portion extending from the connector 8 to the insulated wire 9. Thereby, the sealing agent 6 will be in the state filled with the space | interval between the coating | coated member 7 and the insulated wire 9, and between the some insulated wires 9. FIG.

  By adopting the electric wire with connector 1A, the same effect as that when the electric wire with connector 1 is adopted can be obtained. Further, in the connector-attached electric wire 1A, the covering member 7 and the sealant 6 perform a waterproof function in addition to the dust-proof function.

1, 1A Electric wire with connector 6 Sealant 7 Cover member 8 Connector 9 Insulated wire 70 UV curable adhesive tape 71 Base 72 Adhesive 81 Protrusion 91 Terminal

Claims (2)

Electric wires,
A connector connected to an end of the electric wire;
An ultraviolet curable adhesive tape having a two-layer structure of a base made of a tape-like ultraviolet curable resin and an adhesive is a member that is wound and cured with the adhesive inside on a portion extending from the connector to the wire, An electric wire with a connector, comprising: a covering member that covers a gap between the connector and the electric wire.   The electric wire with a connector according to claim 1, further comprising a sealing agent having elasticity filled between the covering member and the electric wire.

Images