JP6136961B2 - Wiring module and protector - Google Patents

Description

  The present invention relates to a technique for accommodating a wiring part including an electric wire in a protector, and more particularly to a technique for absorbing a surplus length of a wiring part extending from the protector.

  Patent document 1 is disclosing the technique which reduces the dispersion | variation in the drawing-out dimension of the branch wire harness pulled out from a protector main body to the exterior.

  In patent document 1, the branch wire group is positioned by arrange | positioning an elastic body between the side wall of a protector main body, and a branch wire group. In Patent Document 1, the elastic body is in close contact with the branch wire group and elastically held and positioned and fixed. As a result, the allowance dimension from the protector to the branch line terminal can be accurately managed to the set dimension.

  Further, in Patent Document 2, a protector is provided with holding ribs alternately projecting from both side walls at intervals in the wiring harness wiring direction, and the wire harness is meandered between the holding ribs to position and hold the wire. The technology to do is disclosed. In Patent Document 2, when the wire harness has a surplus length, it can be positioned and held by being bent a plurality of times between the holding ribs.

JP-A-11-155216 JP 2004-166454 A

  However, in patent document 1, in order to make the output allowance of the branch wire group constant, if the extra length is accommodated in the protector body, the extra length may move in the protector and generate noise. is there. Moreover, in patent document 1, when a branch electric wire group is pulled, there exists a possibility that an allowance dimension cannot be maintained uniformly.

  Moreover, in patent document 2, depending on the amount of extra length, a wire harness may move in a protector and an abnormal noise may be generated.

  Therefore, the present invention is capable of more reliably absorbing the extra length of the portion of the wiring portion that extends from the protector according to the fluctuation of the extra length while suppressing abnormal noise in the protector. With the goal.

  In order to solve the above-described problem, a wiring module according to a first aspect includes a wiring portion including at least one electric wire, a protector main body portion that accommodates an intermediate portion in the extending direction of the wiring portion, and the protector main body portion. A protector including a plurality of protrusions provided at intervals along an extending direction of the wiring part on an inner peripheral part, and the wiring part between the plurality of protrusions. A bundling member wound around a part of the protector main body part and the wiring part so as to be pulled toward the side.

In the first aspect, the bundling member that allows the bundling member to pass through the line connecting the tip ends of the plurality of projections to the portion between the plurality of projections in the protector body. A hole is formed.

A 2nd aspect is a wiring module which concerns on a 1st aspect, Comprising: The said protector main-body part and these several projection parts are integrally molded.

A 3rd aspect is a wiring module which concerns on a 1st or 2nd aspect, Comprising: The front-end | tip part of these several projection parts is curving so that it may become convex toward the front end side.

A 4th aspect is a protector which can accommodate the wiring part containing at least 1 electric wire, Comprising: The protector main-body part which accommodates the extending direction intermediate part of the said wiring part, and the inner peripheral part of the said protector main-body part And a plurality of protrusions provided at intervals along the extending direction of the wiring part, and the tip portions of the plurality of protrusions are connected to portions of the protector between the plurality of protrusions. A bundling member through-hole through which the bundling member can pass is formed so as to cross the line.

  According to the first aspect, the binding member is wound around a part of the protector main body and the wiring portion so as to pull the wiring portion toward the proximal end side of the protruding portion between the plurality of protruding portions. Therefore, while suppressing abnormal noise between the wiring part in the protector and the inner surface of the protector, the extra length of the part extending from the protector in the wiring part is more reliably determined according to the fluctuation of the extra length. Can be absorbed.

According to the first aspect, since the bundling member can be wound around a part of the protector main body and the wiring part while passing through the bundling member through hole, the wiring part can be completely accommodated in the protector. it can.

According to the 2nd aspect, since the said protector main-body part and these projection parts are integrally molded, the manufacturing cost of a wiring module can be made low.

According to the 3rd aspect, the damage of a wiring part by the contact with a wiring part and a projection part can be suppressed.

According to the fourth aspect, a part of the protector main body part is inserted so that the bundling member is inserted into the bundling member through-hole, and the wiring part is pulled toward the base end side of the front raising part between the plurality of protrusions. And the extra length of the part extending from the protector in the wiring part while suppressing the noise between the wiring part in the protector and the inner surface of the protector Can be absorbed more reliably according to fluctuations in

It is a schematic plan view which shows the wiring module which concerns on embodiment. It is explanatory drawing which shows the fixed state of the wire harness in the II-II line | wire of FIG. It is a schematic plan view of a part of a protector. It is explanatory drawing which shows the state which attached the wiring module to the vehicle. It is explanatory drawing which shows the manufacturing process of a wiring module. It is explanatory drawing which shows the manufacturing process of a wiring module. It is explanatory drawing which shows the example of the bending state of the branch line between two protrusion parts.

  Hereinafter, a wiring module, a protector, and a method for manufacturing the wiring module according to the embodiment will be described. FIG. 1 is a schematic plan view showing the wiring module 10, FIG. 2 is an explanatory diagram showing a fixed state of the wire harness 12 along the line II-II in FIG. 1, and FIG. 3 is a schematic plan view of a part of the protector 20. FIG. 4 is an explanatory view showing a state in which the wiring module 10 is attached to the vehicle.

  The wiring module 10 includes a wire harness 12 as a wiring portion, a protector 20, and a binding member 50.

  The wire harness 12 is configured by bundling a plurality of electric wires 13. Here, the wire harness 12 is configured such that a plurality of electric wires 13 are bundled so that the branch line 12b branches from the intermediate portion in the extending direction of the main line 12a. The binding state of the plurality of electric wires 13 is maintained by a binding band, an adhesive tape, or the like. In FIG. 2 and the like, an outline of the branch line 12b is shown.

  A connector 14 is connected to the end of the wire harness 12. In a state where the wiring module 10 including the wire harness 12 is incorporated in the vehicle, the connector 14 attached to the end portion of each electric wire is connected to various electric components mounted on the vehicle. That is, this wiring module 10 is used as a component for connecting various electrical components mounted on the vehicle.

  The wire harness 12 may include an optical fiber cord or the like. Moreover, the wiring part used as the accommodation object of the protector 20 is not restricted to what the several electric wire 13 was bundled as mentioned above, and may be comprised only with one electric wire.

  The protector 20 includes a protector body 22 and a plurality of (here, two) protrusions 40. Here, the protector body 22 and the plurality of protrusions 40 are configured as a mold-integrated part manufactured by injecting a softened resin into an injection mold. However, the protector body and the plurality of protrusions may be separately formed, and the plurality of protrusions may be attached to the protector body by an adhesive, an adhesive, a fitting structure, or the like.

  The protector main body 22 includes a main line accommodating part 24 and a branch line accommodating part 30.

  The trunk line accommodating part 24 is a part that accommodates the trunk line 12 a and includes a bottom plate part 25 and a pair of side plate parts 26. The bottom plate portion 25 is formed in an elongated plate shape. The pair of side plate portions 26 are formed so as to rise from both side portions of the bottom plate portion 25. And the intermediate direction part of the said trunk line 12a can be accommodated in the space enclosed by the baseplate part 25 and a pair of side-plate part 26. FIG.

  Further, a branching concave portion 27 is formed in one extending direction intermediate portion of the pair of side plate portions 26, and a branch line accommodating portion 30 is provided in this portion.

  The branch line accommodating portion 30 includes a bottom plate portion 32 and a pair of side plate portions 34.

  The bottom plate portion 32 is formed in an elongated plate shape, and is formed so as to extend outward from a portion of the side edge portion of the bottom plate portion 25 where the branching concave portion 27 is formed.

  The pair of side plate portions 34 are formed so as to rise from both side portions of the bottom plate portion 32. One end portion of the pair of side plate portions 34 is connected to the edge portion of the side plate portion 26 where the branching concave portion 27 is formed. The branch line 12 b that branches off from the trunk line 12 a at the position of the branch recess 27 can be accommodated in a space surrounded by the bottom plate portion 32 and the pair of side plate portions 34. In addition, since the front-end | tip part of the branch line 12b is extended from the branch line accommodating part 30, this branch line accommodating part 30 accommodates the extension direction intermediate part of a wiring part.

  The branch line 12 b extends from the outer end of the branch line housing part 30. Then, the connector 14 at the end of the branch line 12 b is connected to the mating connector 19 of the electrical component 18.

  In addition, the opening opposite to the bottom plate portions 25 and 32 in the protector main body portion 22 may be closed by a lid portion.

  The wiring module 10 is incorporated into a vehicle as follows.

  That is, the protector 20 is fixed to a fixed position of the vehicle via a bolt, a plate-like bracket, a clamp structure, or the like that protrudes from the vehicle. Further, a portion of the branch line 12b that extends from the branch line housing portion 30 is spanned between the tip of the branch line housing portion 30 and the electrical component 18 mounted on the vehicle. And the connector 14 of the front-end | tip part of the branch line 12b is connected to the connector 19 of the electrical component 18 separately fixed to the vehicle.

  Here, the protector 20 and the electrical component 18 are each fixed to the vehicle, and the distance between the tip of the branch line accommodating portion 30 and the connection portion of the connector 14 to the connector 19 of the electrical component 18 is the dimension Lb. (See FIG. 4).

  On the other hand, the wire harness 12 incorporated in the protector 20 is normally configured by binding a predetermined length of electric wire with a terminal. Usually, when manufacturing the wire harness 12, an error occurs to some extent. For this reason, if the branch line 12b branched from the trunk line 12a is accommodated in the branch line accommodating part 30 in a state where the wire harness 12 is incorporated in the protector 20 so as to accommodate the trunk line 12a in the trunk line accommodating part 24, the branch is generated. The length La (see FIG. 1) of the portion of the line 12b extending from the branch line accommodating portion 30 varies.

  And if the dimension La is larger than the dimension Lb, the branch line 12b will loosen between the front-end | tip part of the branch line accommodating part 30, and the electric component 18 (refer the branch line 12b shown with a dashed-two dotted line in FIG. 4). . Then, the branch line 12b may interfere with the peripheral portion thereof, which may cause abnormal noise or deterioration due to friction.

  Here, even if the surplus part of the branch line 12b is accommodated in the branch line accommodating part 30, if the surplus part remains loose in the branch line accommodating part 30, the branch line 12b The surplus portion may interfere with the inner surface of the branch line accommodating portion 30 and may cause abnormal noise or deterioration due to friction.

  Therefore, the configuration using the plurality of protrusions 40 and the bundling member 50 described below absorbs the extra length of the branch line 12b while suppressing slack.

  That is, a plurality of protrusions 40 are provided on the inner peripheral portion of the protector main body 22 at intervals along the extending direction of the branch line 12b.

  Here, an example in which two protrusions 40 are provided will be described. However, three or more protrusions may be provided, and the binding member 50 may be wound around the branch line 12b between each as described later.

  More specifically, the two protruding portions 40 are provided so as to protrude from one side plate portion 34 toward the other side plate portion 34.

  The protrusion 40 is formed in a square plate shape. The width direction dimension of the projection 40 (the dimension in the depth direction of the branch line accommodation part 30) is the same as the depth dimension of the branch line accommodation part 30, and the projection dimension of the projection 40 (the pair of side plate parts 34 is connected). The dimension in the direction) is set smaller than the dimension obtained by subtracting the outer diameter dimension of the branch line 12b from the dimension between the inner surfaces between the pair of side plate portions 34. Here, the protruding dimension of the protrusion 40 is set to a dimension that exceeds half of the dimension between the inner surfaces of the pair of side plate portions 34.

  The base end portion of the protruding portion 40 is integrated with one side plate portion 34, and one side portion of the protruding portion 40 is integrated with the bottom plate portion 32. The tip 40a of the protrusion 40 is formed in a curved shape so as to be convex toward the tip.

  The two protrusions 40 are arranged at intervals along the extending direction of the branch line 12b which is a wiring part. The dimension between the two protrusions 40 is set to such a size that the branch line 12b can be bent and disposed.

  A bundling member through hole 38 is formed in a portion between the two protrusions 40 in the protector body 22. Here, the bundling member through hole 38 is formed in the bottom plate portion 32. The binding member through hole 38 is a slit-like hole having a width larger than the width of the band portion 54 of the binding member 50 described later, and the bottom plate portion 32 of the bottom plate portion 32 crosses the line connecting the tip portions 40a of the two protrusions 40. It is formed elongated along the width direction. Accordingly, the band portion 54 can pass through the bottom plate portion 32 while adjusting the position in the protruding direction of the protruding portion 40.

  In addition, an example of the preferable dimension of each part of said 2 protrusion part and binding member through-hole 38 is as follows. First, the protrusion dimension A of the protrusion 40 is preferably a value obtained by adding 3 to 5 mm to the outer diameter of the branch line 12b to be accommodated. Moreover, it is preferable that the dimension D between the thickness direction center parts of the two projection parts 40 shall be 30 mm or more.

  More specifically, in this case, in the protruding direction of the protrusion 40, the dimension B where the protrusion 40 and the binding member through hole 38 overlap is 3 to 5 mm, and the protrusion 40 does not overlap with the binding member through hole 38. The dimension C of the part is preferably the same as the outer diameter of the branch line 12b. Moreover, it is preferable that the dimension D between the thickness direction center part of the two projection parts 40 is 30 mm, and the width dimension E of the bundling member through hole 38 is 5 mm. However, each of the above dimensions is appropriately changed according to an assumed surplus absorption amount, an outer diameter of the wiring portion, and the like.

  The binding member 50 itself is generally a part called a binding band, a binding tie or the like. That is, the binding member 50 is a part integrally formed of a soft resin or the like, and includes a band fixing part 52 and a band part 54.

  The band portion 54 is a band-shaped portion in which a plurality of locking grooves are formed on one main surface. The band fixing portion 52 is formed in a rectangular tube shape through which the band portion 54 can be inserted, and a locking claw that can be selectively locked in the plurality of locking grooves is formed therein. Yes. Then, when the band portion 54 is inserted into the band fixing portion 52 and the tip end portion of the band portion 54 is pulled, the locking claw is in one direction in the locking groove at an arbitrary position in the extending direction of the band portion 54. Thus, the binding member 50 is maintained in an annular shape having a predetermined circumferential length.

  In addition, as a binding member, you may use an adhesive tape other than the above binding bands.

  The binding member 50 is wound around a part of the protector main body 22 and the branch line 12b so as to pull the branch line 12b toward the proximal end side of the protrusion 40 between the two protrusions 40.

  More specifically, the band portion 54 of the binding member 50 is guided from the outside of the bottom plate portion 32 of the branch line accommodating portion 30 to the inside through the binding member through hole 38. Further, the band portion 54 is guided to the upper opening of the branch line accommodation portion 30 through the space between the side plate portion 34 facing the tip end portion of the projection portion 40 and the branch line 12b. The band unit 54 is inserted through the band unit 54. In this state, the binding member 50 is tightened so that the peripheral length is shortened, and the branch line 12 b is pulled toward the base end side of the protrusion 40 between the two protrusions 40. In this state, the branch line 12b is bent in a V shape between the two protrusions 40 toward the base end side. The extra length of the branch line 12b is absorbed according to the bending state.

  A method for manufacturing the wiring module 10 will be described.

  First, as shown in FIG. 5, the branch line 12 b which is an intermediate portion in the extending direction of the wiring portion is accommodated in the protector main body portion 22. And the branch line 12b is arrange | positioned so that the front-end | tip part side of the two projection parts 40 may pass in the protector main-body part 22. FIG.

  Thereafter, as shown in FIG. 6, the band portion 54 of the binding member 50 is passed through the binding member through hole 38, and one side outward portion of the binding member through hole 38 in the branch line accommodating portion 30 and around the branch line 12 b. It arranges in. Then, the band member 54 is passed through the band fixing portion 52, and the binding member 50 is tightened so that the branch line 12b is pulled toward the base end side of the protrusion 40 between the two protrusions 40. The binding member 50 is wound around the branch wire 12b on one side of the branch line accommodation portion 30 and the branch line 12b.

  At this time, the band portion 54 is set so that the length dimension La of the portion extending from the branch line accommodating portion 30 in the branch line 12b becomes a dimension Lb corresponding to the distance between the branch line accommodating portion 30 and the electrical component 18. The amount of tightening, that is, the degree of bending of the branch line 12b between the two protrusions 40 is adjusted. Therefore, the bending degree of the branch line 12b between the two protrusions 40 may be different as shown in FIG. 1 and FIG. 1 shows a case where the extra length of the branch line 12b is relatively large, and therefore, the branch line 12b is bent relatively large between the two protrusions 40. In FIG. 7, the extra line of the branch line 12b is shown. This shows a case where the length is relatively small, and therefore the branch line 12b is bent relatively small between the two protrusions 40.

  Thereby, the wiring module 10 is completed.

  According to the wiring module 10, the protector 20, and the method for manufacturing the wiring module configured as described above, the bundling member is configured to pull the branch line 12 b toward the base end side of the protrusion 40 between the plurality of protrusions 40. 50 is wound around a part of the branch line 12b of the protector body 22 and the branch line 12b which is a wiring part. For this reason, the surplus length of the branch line 12b extending from the branch line accommodating portion 30 is adjusted according to the amount of the surplus length to adjust the degree of bending of the branch line 12b. The length can be absorbed more reliably.

  Further, the extra length of the branch line 12b is absorbed in the protector 20, and the branch line 12b is pulled toward the base end side of the protrusion 40 between the plurality of protrusions 40. Therefore, the generation of abnormal noise between the branch line 12b and the inner surface of the branch line accommodating portion 30 in the branch line accommodating portion 30 and the interference with other portions can be effectively suppressed.

  Further, since the branch line 12b is pulled by the binding member 50 and pressed against the distal end portions 40a of the plurality of protrusions 40, the branch line 12b is difficult to move in the extending direction. For this reason, the extension amount of the branch line 12b from the branch line accommodating part 30 can be kept constant, and even when the branch line 12b is pulled when the wiring module 10 is assembled to the vehicle, the branch line 12b Of these, the length dimension of the portion extending from the branch line accommodating portion 30 can be more reliably kept constant.

  Moreover, since the binding member 50 can be wound around a part of the branch line accommodation part 30 and the branch line 12b while passing through the binding member through hole 38, the branch line accommodation part that surrounds the three sides of the branch line 12b. Also in 30, the extra length can be absorbed, and the branch line 12b can be completely accommodated in the branch line accommodating part 30.

  But it is not essential that the protector main-body part has covered 3 directions of the branch line 12b, and the structure which covers from 2 directions or 1 direction may be sufficient. In this case, the bundling member through hole may not be provided depending on the width of the bottom plate portion or the side plate portion constituting the protector.

  Moreover, since the protector main-body part 22 and the projection part 40 are integrally formed, the protector 20 can be manufactured at low cost.

  Moreover, since the front-end | tip part 40a of the projection part 40 is formed in the shape which curves toward a front end side, the damage of the branch line 12b by the contact with the branch line 12b and the projection part 40 can be suppressed.

{Modifications}
In the above-described embodiment, the wire harness 12 includes the trunk line 12a and the branch line 12b and has been described as an example that absorbs the extra length of the branch line 12b. However, the present invention can also be applied to a wiring portion that is not the branch line 12b. is there.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Wiring module 12 Wire harness 12a Trunk line 12b Branch line 13 Electric wire 20 Protector 22 Protector main body part 24 Trunk line accommodating part 30 Branch line accommodating part 40 Protrusion part 40a Tip part 50 Binding member

Claims (4)

A wiring portion including at least one electric wire;
A protector main body that accommodates an intermediate portion in the extending direction of the wiring portion, and a plurality of protrusions that are provided on the inner peripheral portion of the protector main body at intervals along the extending direction of the wiring portion. Including a protector,
A bundling member wound around a part of the protector main body and the wiring portion so as to pull the wiring portion toward the base end side of the protruding portion between the plurality of protruding portions;
Equipped with a,
A wiring member in which a bundling member through-hole through which the bundling member can pass is formed in a portion between the plurality of protruding portions of the protector main body so as to cross a line connecting the tip portions of the plurality of protruding portions. module. The wiring module according to claim 1 ,
A wiring module in which the protector body and the plurality of protrusions are integrally formed. The wiring module according to claim 1 or 2 , wherein
The wiring module in which the front-end | tip part of these several projection parts is curving so that it may become convex toward the front-end | tip side. A protector capable of accommodating a wiring portion including at least one electric wire,
A protector main body for accommodating an intermediate portion in the extending direction of the wiring portion;
A plurality of protrusions provided at intervals along the extending direction of the wiring part on the inner peripheral part of the protector main body part,
A protector in which a bundling member through-hole through which a bundling member can pass is formed in a portion between the plurality of projecting portions of the protector so as to cross a line connecting leading ends of the plurality of projecting portions.

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