JP2015173563A - wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness that enables a protective member to be installed in an electric wire group so that a dimension at which the electric wire group is exposed between the protective member and a connector is equal to a prescribed required reference value or less.SOLUTION: A wire harness comprises: an electric wire group 10 having a plurality of insulating electric wires 11 having terminals 12 fitted to end parts thereof; a connector 20 that holds each terminal 12; and a protective member 30 that is positioned so that a dimension at which the electric wire group 10 is exposed between the connector 20 and the member 30 becomes equal to a prescribed reference value or less by inserting the electric wire group 10 into a tubular space and covers the electric wire group 10. The protective member 30 has a plurality of insulating small-diameter tubular protective members 31, is configured such that a plurality of insulating electric wires 11 are divided into a plurality of bundles corresponding to the insulating smaller-diameter tubular protective members 31 so as to correspond to the arrays of the terminals 12 held by the connector 20, one bundle of the insulating electric wires 11 is inserted into one of the insulating smaller-diameter tubular protective members 31, and the insulating smaller-diameter tubular protective members 31 are approximate to the connector 20.

Description

  The present invention relates to a wire harness.

  Conventionally, as a wire harness routed in an automobile, an electric wire group including a plurality of insulated wires having terminals connected to ends, a connector connected to an end of the electric wire group, and an electric wire group There is a gap that cannot be sealed with the protective tube between the connector and the protective tube. If the gap dimension is less than or equal to the predetermined required reference value, it is allowed not to seal the gap. The thing of a structure is known (for example, refer patent document 1).

  FIG. 6 shows a wire harness described in Patent Document 1. In FIG. 6, the wire harness 100 passes a plurality of electric wires 102 through a protective tube 101, inserts a terminal attached to the end of the electric wire 102 into the terminal accommodating chamber of the connector 103, and moves the protective tube 101 toward the connector 103. Thus, the end of the protective tube 101 opposite to the connector 103 is wound and fixed to the electric wire group 102 with an adhesive tape, and the gap dimension between the connector and the protective tube is set to a predetermined required reference value or less.

JP 2008-280000 A

  However, in the wire harness described in Patent Document 1 shown in FIG. 6, when the gap dimension between the end of the protective tube 101 and the connector 103 is shortened, the electric wires are in an arrangement relationship shifted from the cylindrical core of the protective tube 101. That is, in the electric wire in which the terminal is held in the terminal accommodating chamber at the corner position of the connector 103, a large tensile stress and bending stress are applied to the electric wire 102 extending toward the terminal accommodating chamber of the connector 103, and the electric wire 102 is disconnected. There is a fear. For this reason, when the number of electric wires is large and the connector 103 is large, there is a problem that the gap dimension between the end of the protective tube 101 and the connector 103 cannot be reduced below a predetermined required reference value. .

  The present invention has been made in order to solve the above-described problems, and the protection member is provided on the wire group so that the dimension in which the wire group is exposed between the protection member and the connector is equal to or less than a predetermined required reference value. It aims at providing the wire harness which can be attached.

  In order to achieve the above object, a wire harness according to the present invention has a plurality of insulated wires each having a terminal connected to an end, and a number of terminal connections corresponding to the number of insulated wires. A molded body having an insertion hole, a connector holding each predetermined corresponding terminal in each terminal connection insertion hole, a cylindrical space, and the connector through the wire group in the cylindrical space A wire harness including a protective member that is positioned so as to be less than a predetermined required reference value and that covers the electric wire group, wherein the protective member has a plurality of insulating small diameters. The plurality of insulated wires are divided into a plurality of bundles corresponding to the insulating small-diameter cylindrical protection member so as to correspond to the arrangement held in the terminal connection insertion holes of the terminals. 1 bundle of insulated wires each Passed through the insulating smaller cylindrical protection member is configured such that the insulating smaller cylindrical protective member is in proximity to the connector.

  With this configuration, the wire harness according to the present invention divides a plurality of insulated wires constituting the wire group into a plurality of bundles, and protects each insulated wire for each number of the bundles into one insulating small-diameter cylindrical protection. Since it is configured to pass through the member, each insulating small-diameter cylindrical protection is provided on the electric wire group so that the dimension in which the electric wire group is exposed between the insulating small-diameter cylindrical protective member and the connector is less than a predetermined required reference value. A member can be attached.

  Moreover, according to this structure, the wire harness which concerns on this invention is an insulating small diameter cylindrical protective member from the connector of the insulated wire connected with the terminal which has the arrangement | positioning relationship shifted | deviated from the cylinder center of an insulating small diameter cylindrical protective member. Since the inclination angle with respect to the cylindrical core of the insulating small-diameter cylindrical protective member in the portion that is passed through can be kept small, the tensile stress and bending stress applied to the insulated wire can be kept small, and the possibility that the insulated wire is broken can be avoided.

  In the wire harness having the above-described configuration, the protection member includes the plurality of insulating small-diameter cylindrical protection members that cover the connector-side electric wire group branching portion of the section in which the electric wire group needs to be protected, A large insulating space that has a cylindrical space that has a required larger diameter than the insulating small-diameter cylindrical protective member and covers a portion of the cylindrical space that is opposite to the connector in a section that requires protection of the wire group. It is preferable to have a configuration provided with a cylindrical protection member.

  According to this configuration, the wire harness according to the present invention is branched by a plurality of insulating small-diameter cylindrical protective members that cover the wire group branching portion of the connector side portion in the section where the protection of the wire group is necessary. Protects and protects the remaining long part with an insulating large-diameter cylindrical protective member, so that when the section that requires protection of the wire group is long, the wire group is substantially divided into bundles. Since it can protect as 1 bundle, favorable routing property can be ensured.

  In the wire harness having the above-described configuration, the wire group is passed through the insulating large-diameter cylindrical protection member, and then the wire group branching portion is passed through each one of the insulating small-diameter cylindrical protection members, Thereafter, the terminal is preferably held by the connector.

  According to this structure, the wire harness according to the present invention can hold the terminal in the terminal connection insertion hole of the connector in a state where the insulating small diameter cylindrical protective member is separated from the connector. Insulating large-diameter cylindrical protective members and insulating small-diameter cylinders having different diameters can be easily applied to the wire group. It is possible to easily perform the operation of covering the wire group with the protective member.

  ADVANTAGE OF THE INVENTION According to this invention, the wire harness which can attach a protection member to an electric wire group can be provided so that the dimension which an electric wire group exposes between a protection member and a connector may become below a predetermined | prescribed request | requirement reference value. .

It is a top view which shows the wire harness which concerns on one embodiment of this invention. It is a top view which shows the electric wire group in FIG. It is a top view which shows the state which let the electric wire group in FIG. 2 pass the insulating large diameter cylindrical protection member. It is a top view which shows the state which let the electric wire group in FIG. 3 pass the insulating small diameter cylindrical protection member. FIG. 5 is a plan view showing a state in which the terminal in FIG. 4 is held by a connector. It is a fragmentary top view which shows the conventional wire harness.

  Next, an embodiment of a wire harness according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the wire harness 1 according to the present embodiment includes an electric wire group 10, a connector 20, and a protection member 30.

  The wire group 10 includes a plurality of insulated wires 11 each having a terminal 12 attached to an end portion. The connector 20 is a molded body having a number of terminal connection insertion holes 21 corresponding to the number of the insulated wires 11, and a predetermined corresponding terminal 12 is held in each terminal connection insertion hole 21.

  The protective member 30 includes two insulating small-diameter cylindrical protective members 31 having a cylindrical space through which a plurality of insulated wires 11 are passed, and one having a cylindrical space through which the plurality of insulated wires 11 are passed. And an insulating large-diameter cylindrical protective member 32. As the insulating small-diameter cylindrical protective member 31 and the insulating large-diameter cylindrical protective member 32, for example, a vinyl tube or a vinyl sheet processed into a cylindrical shape is used.

  As shown in FIG. 2, the electric wire group 10 is divided into two bundles so that a plurality of insulated electric wires 11 correspond to the arrangement of the terminals 12 held in the terminal connection insertion holes 21, and the electric wire group on the connector 20 side. The branched portion 10a is bound by an adhesive tape 13 wound around each bundle of insulated wires 11, and the portion 10b opposite to the wire group branched portion 10a is wound around a bundle made up of all insulated wires 11. They are bound by tape 14.

  In order to divide the plurality of insulated wires 11 into two bundles, it is preferable to use a jig 40. The jig 40 is configured to include a substrate 41 on which the intermediate portion in the longitudinal direction of the plurality of insulated wires 11 is placed and a pin 42 protruding from the substrate 41 in a direction intersecting the insulated wires 11. The insulated wire 11 is manually divided into two bundles with the pin 42 as a boundary.

  Further, the number of the plurality of insulated wires 11 divided into bundles may be three or more depending on the shape of the connector 20 and the number of terminal connection insertion holes 21. For example, the plurality of insulated wires 11 is divided into three bundles. In this case, the number of pins 42 of the jig 40 is two.

  Each insulative small diameter cylindrical protective member 31 covers each electric wire group branching portion 10 a of the electric wire group 10 in the circumferential direction, and the insulated electric wire 11 is connected between each insulative small diameter cylindrical protective member 31 and the connector 20. The exposed dimension is below a predetermined required reference value. The insulating large-diameter cylindrical protection member 32 has a predetermined length, and covers a portion to be protected in the circumferential direction in a portion 10b opposite to the wire group branching portion 10a of the wire group 10. Yes.

  As shown in FIG. 1, the insulating large-diameter cylindrical protection member 32 has the end portion of each insulating small-diameter cylindrical protection member 31 inserted into the end portion on the connector 20 side. The end portion of each insulating small-diameter cylindrical protection member 31 and the end portion of the insulating large-diameter cylindrical protection member 32 are fixed to each other by an adhesive tape (not shown) wound around them. Further, the end of the insulating large-diameter cylindrical protection member 32 opposite to the connector 20 is mutually attached to a portion 10b of the electric wire group 10 opposite to the electric wire group branching portion 10a by an adhesive tape (not shown) wound around them. It is fixed to.

  The work of attaching the protection member 30 to the wire group 10 is performed before the terminal 12 is held in the terminal connection insertion hole 21 of the connector 20. First, as shown in FIG. 3, the electric wire group 10 is passed through the insulating large-diameter cylindrical protective member 32 from the terminal 12 side, and the insulating large-diameter cylindrical protective member 32 is an electric wire group branching portion 10 a of the electric wire group 10. The portion 10b on the opposite side is covered in the circumferential direction.

  Next, as shown in FIG. 4, the electric wire group 10 is passed through each insulating small-diameter cylindrical protective member 31 from the terminal 12 side, and each insulating small-diameter cylindrical protective member 31 is an electric wire group branching portion 10 a of the electric wire group 10. As shown in FIG. 5, the terminal 12 of the insulated wire 11 corresponding to the terminal connection insertion hole 21 of the connector 20 is held.

  Further, the insulating large-diameter cylindrical protection member 32 is moved toward the connector 20 side, and the end of each insulating small-diameter cylindrical protection member 31 is attached to the end of the insulating large-diameter cylindrical protection member 32 on the connector 20 side. And an insulating tape (not shown) is wound around the end of each insulating small-diameter cylindrical protective member 31 and the end of the insulating large-diameter cylindrical protective member 32, and each insulating small-diameter cylindrical protective member 31 and The insulating large-diameter cylindrical protection member 32 is fixed to each other.

  Thereafter, as shown in FIG. 1, each of the insulating small-diameter cylindrical protective members 31 and the insulating large-diameter cylindrical protective member 32 are moved toward the connector 20, and each of the insulating small-diameter cylindrical protective members 31 and the connector are moved. The dimension at which the insulated wire 11 is exposed to 20 is set to a predetermined required reference value or less.

  Also, an insulating large diameter is wound by winding an adhesive tape (not shown) around the end of the insulating large-diameter cylindrical protection member 32 opposite to the connector 20 and the portion 10b opposite to the wire group branching portion 10a of the wire group 10. The cylindrical protection member 32 is fixed to the portion 10b of the wire group 10 opposite to the wire group branching portion 10a.

  In the wire harness 1 according to the present embodiment, a plurality of insulated wires 11 constituting the wire group 10 are divided into multiple bundles, and the insulated wires 11 for each number divided into bundles are each insulative small diameter. Since the configuration passes through the tubular protection member 31, the wire group 10 is set so that the dimension in which the wire group 10 is exposed between the insulating small-diameter tubular protection member 31 and the connector 20 is equal to or less than a predetermined required reference value. Each insulating small-diameter cylindrical protection member 31 can be attached.

  In addition, the wire harness 1 according to the present embodiment protects the insulated small-diameter cylindrical protection from the connector 20 of the insulated wire 11 connected to the terminal 12 in the arrangement relationship shifted from the cylindrical center of the insulating small-diameter cylindrical protection member 31. Since the inclination angle with respect to the cylindrical core of the insulating small-diameter cylindrical protection member 31 in the portion that passes through the member 31 can be suppressed to a small value, the tensile stress and bending stress applied to the insulated wire 11 can be kept small, and the insulated wire 11 is disconnected. You can avoid fear.

  Moreover, the wire harness 1 which concerns on this Embodiment is by the some insulating small diameter cylindrical protection member 31 which covers the electric wire group branch part 10a of the connector 20 side part among the sections which need protection of the electric wire group 10. FIG. Since the branch is protected and the remaining long portion is protected by the insulating large-diameter cylindrical protection member 32, a plurality of the wire groups 10 are bundled when the section that needs to be protected is long. Since it can be protected substantially as a single bundle without being divided into two, it is possible to ensure good routing.

  Moreover, since the wire harness 1 which concerns on this Embodiment can hold | maintain the terminal 12 in the insertion hole 21 for terminal connection of the connector 20 in the state which spaced apart the insulating small diameter cylindrical protection member 31 from the connector 20, it is. The terminal 12 and the connector 20 can be easily connected to each other, and the insulating large-diameter cylindrical protection member 32 is put on the electric wire group 10 first, so that the insulating small-diameter cylindrical protection with different diameters can be used. The operation | work which covers the member 31 and the insulating large diameter cylindrical protection member 32 on the electric wire group 10 can be performed easily.

  Moreover, since the end part of each insulating small diameter cylindrical protective member 31 is inserted in the end part by the side of the connector 20 of the insulating large diameter cylindrical protective member 32, the wire harness 1 which concerns on this Embodiment has each insulation. The connection strength of the connecting portion between the small-diameter cylindrical protective member 31 and the insulating large-diameter cylindrical protective member 32 can be ensured.

  Moreover, since the wire harness 1 which concerns on this Embodiment can hold | maintain the terminal 12 in the insertion hole 21 for terminal connection of the connector 20 in the state which spaced apart the insulating small diameter cylindrical protection member 31 from the connector 20, it is. The connection work between the terminal 12 and the connector 20 can be easily performed.

  The present invention is not limited to the above-described embodiments, and various design changes may be made to the technical scope of the present invention described in the claims without departing from the spirit of the invention. included.

  As described above, the wire harness according to the present invention can attach the protective member to the electric wire group so that the dimension in which the electric wire group is exposed between the protective member and the connector is equal to or less than a predetermined required reference value. This is useful for wire harnesses in general.

DESCRIPTION OF SYMBOLS 1 Wire harness 10 Electric wire group 10a Electric wire group branching part 10b The part on the opposite side to the electric wire branching part of an electric wire group 11 Insulated electric wire 12 Terminal 20 Connector 21 Insertion hole for terminal connection 30 Protection member 31 Insulating small diameter cylindrical protection member 32 Insulating large diameter cylindrical protective member

Claims (3)

A group of wires configured to have a plurality of insulated wires with terminals connected to the ends;
A molded body having a number of terminal connection insertion holes corresponding to the insulated wires, and a connector for holding each predetermined corresponding terminal in each terminal connection insertion hole;
A protective member that has a cylindrical space and is positioned so that the wire group between the connector and the connector is exposed through the wire group in the cylindrical space so as to be equal to or less than a predetermined required reference value; A wire harness comprising
The protective member includes a plurality of insulating small-diameter cylindrical protective members, and the plurality of insulated wires correspond to the arrangement held in the terminal connection insertion holes of the terminals. Divided into a plurality of bundles corresponding to the shape protection member, each bundle of insulated wires is passed through each one of the insulative small-diameter cylindrical protection members, and the insulative small-diameter cylindrical protection member is close to the connector A wire harness characterized by having a configuration.   The protective member includes the plurality of insulating small-diameter cylindrical protective members covering the connector-side electric wire group branch-shaped portion in the section where the electric wire group needs to be protected, and the insulating small-diameter cylindrical protective member. Has a cylindrical space having a required large diameter, and includes an insulating large-diameter cylindrical protective member that covers a portion of the cylindrical space opposite to the connector in a section where the protection of the electric wire group is necessary. The wire harness according to claim 1, wherein   The electric wire group is passed through the insulating large-diameter cylindrical protective member, and then the electric wire group branch portion is passed through each one of the insulating small-diameter cylindrical protective members, and then the terminal is connected to the connector. The wire harness according to claim 1 or 2, wherein the wire harness is held by the wire harness.

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