JP6149737B2 - Electric wire module and protector - Google Patents

Description

  The present invention relates to a technique for protecting an electric wire while electromagnetically shielding it.

  Patent document 1 is disclosing the shielded electric wire provided with the drain line, the electric wire, the shield layer provided in the outer periphery of the drain wire and the electric wire, and the coating | coated part which covers further the outer periphery of a shield layer.

JP 2009-266640 A

  However, the shielded electric wire as described above is more expensive than a general electric wire that does not include a shield layer.

  Further, since the shielded electric wire has a multilayer structure including a shield layer and a covering portion, it is difficult to process the shielded wire using a general-purpose covering peeling apparatus, a terminal crimping apparatus, or the like.

  For these reasons, when a wire harness or the like is manufactured using a shielded electric wire, there is a problem that the cost becomes high.

  Then, an object of this invention is to provide the electric wire module which can be protected physically, shielding an electric wire electromagnetically, and providing at low cost.

To solve the above problems, the wire module according to the first aspect, including a plurality of plate-shaped portion and a intervening portion forming a interposed hollow structure therebetween between said plurality of plate-like portions A protector, wherein at least one of two plate-like portions disposed on one main surface side and the other main surface side of the protector among the plurality of plate-like portions and excluding a main surface facing the outside A protector provided with a shield layer in the part, and at least one electric wire accommodated in a hollow structure of the protector, and of the two plate-like parts provided with the shield layer. The edge portion is folded to form a folded portion, and the shield layer at the folded portion is exposed on the surface of the protector.

A 2nd aspect is an electric wire module which concerns on a 1st aspect, Comprising: The said interposition part contains the partition part which forms the several space extended in parallel between these plate-shaped parts. .

A 3rd aspect is an electric wire module which concerns on a 2nd aspect, Comprising: The said shield layer is provided in the said partition part.

A 4th aspect is a protector which protects an electric wire, Comprising: The interposition part which forms between the some plate-shaped part and the said several plate-shaped part and forms the hollow structure which can accommodate the said electric wire among them And excluding a main surface that faces at least one of the two plate-like portions disposed on one main surface side and the other main surface side of the protector among the plurality of plate-like portions. A shield layer is provided on the portion, and an edge portion of the plate-like portion provided with the shield layer is folded back to form a folded portion of the two plate-like portions, and the shield layer of the folded portion is formed on the protector. It is exposed on the surface .

According to the 1st-4th aspect, since the shield layer is provided in at least one of the part except the main surface which faces the outside among the plurality of plate-like parts, and the interposition part, in the protector The accommodated electric wire can be shielded electromagnetically. Moreover, an electric wire can be physically protected by a protector. At this time, as the electric wire, a general electric wire without a shield layer can be used, and processing using a general-purpose electric wire processing apparatus is possible. For this reason, an electric wire module can be provided at low cost.

According to the first aspect, electromagnetic shielding can be performed between the inside and outside of the protector.

According to the 2nd aspect, a some electric wire can be accommodated and hold | maintained in a parallel state by accommodating an electric wire in a some space.

According to the 3rd aspect, electromagnetic shielding can be performed between each electric wire accommodated in each space.

It is a schematic perspective view which shows the electric wire module which concerns on embodiment. It is a schematic front view which shows a protector part among electric wire modules. It is a schematic perspective view which shows an example of the hollow board material for forming a protector. It is a schematic perspective view which shows the example which turned up the plate-shaped part of the protector. It is sectional drawing which shows the protector which concerns on a modification. It is a schematic perspective view which shows the example which turned up the plate-shaped part of the protector same as the above. It is a schematic perspective view which shows the other example of the hollow board material for forming a protector. It is a schematic perspective view which shows the further another example of the hollow board material for forming a protector. It is a fragmentary sectional view of FIG. It is a fragmentary sectional view showing the hollow board material of other examples. It is the schematic which shows the electric wire module which concerns on a modification.

  Hereinafter, the wire module and the protector according to the embodiment will be described. 1 is a schematic perspective view showing the electric wire module 10, FIG. 2 is a schematic front view showing a protector 30 portion of the electric wire module 10, and FIG. 3 is an outline showing an example of a hollow plate material for forming the protector 30. It is a perspective view.

  The electric wire module 10 includes a protector 30 and at least one electric wire 12.

  The electric wire 12 has a resin coating formed by extrusion coating or the like around a conducting wire. A crimp terminal is connected to the end of the electric wire 12, and the crimp terminal is inserted and fixed to the connector 16. The connector 16 is connected to electrical components such as an electronic control unit, various sensors, and a motor mounted on the vehicle while the electric wire module 10 is attached to the vehicle or the like. Thereby, this electric wire module 10 is used as a wiring material which electrically connects the various electric components mounted in the vehicle.

  The protector 30 includes a plurality of plate-like portions 32 and intervening portions 36, and is formed in a plate shape as a whole. The interposition part 36 is interposed between the plurality of plate-like parts 32, and is configured to form a hollow structure capable of accommodating at least one electric wire between the plurality of plate-like parts 32. In addition, shield layers 40 and 42 are provided on at least one of the portion excluding the main surface facing the outside and the interposition portion 36 among the plurality of plate-like portions 32.

  The protector 30 accommodates at least a part of the extending direction of the at least one electric wire 12 so that the electric wire module 10 is configured. The protector 30 plays a role of protecting the electric wire 12 from the outside (for example, an edge portion around the wiring route), a role of maintaining the electric wire 12 along a predetermined wiring route, and the like. In addition, when a plurality of electric wires 12 are accommodated in the protector 30, the role of maintaining the plurality of electric wires 12 in a shape corresponding to the path space in the wiring route, that is, the plurality of electric wires 12 in a flat parallel state. It also plays a role to maintain. In addition, in the arrangement | positioning state to a vehicle, the protector 30 may be bent. Moreover, the electric wire 12 can be electromagnetically shielded by the shield layer 40. In particular, electromagnetic shielding of the electric wire 12 can be performed between the electric wire module 10 and the outside by the shield layer 40 provided on the portion excluding the main surface facing the outside among the plurality of plate-like portions 32. it can. Further, electromagnetic shielding can be performed between the plurality of electric wires 12 by the shield layer 42 provided in the interposition portion 36.

  The protector 30 will be described in more detail. The protector 30 includes a plurality (here, two) of plate-like portions 32 and an interposition portion 36 provided between the plurality of plate-like portions 32.

  The material which forms the some plate-shaped part 32 and the interposition part 36 is not specifically limited. The plurality of plate-like portions 32 and the interposition portions 36 may be formed of paper, may be formed of resin (polypropylene or the like), or may be configured by a combination thereof. When at least one of the plurality of plate-like portions 32 and the interposition portion 36 is formed of paper, it is preferable to perform a water repellent treatment or the like on the surface. Here, an example in which a plurality of plate-like portions 32 and intervening portions 36 are integrally formed of resin will be described.

  The plate-like portion 32 is formed in a flat plate shape. A plurality of plate-like portions 32 are connected via an interposition portion 36 with a space therebetween.

  The interposition part 36 includes a plurality of partition parts 36a. Each partition part 36a is formed in the shape of an elongated strip. The plurality of partition portions 36a are provided in a parallel state between the plate-like portions 32 and orthogonal to the plate-like portions 32 and spaced from each other. Both side portions of each partition portion 36 a are connected to the inward surface of the plate-like portion 32. Thereby, the several plate-shaped part 32 is supported in the state which opened the space | interval. Further, a plurality of spaces (spaces in which the electric wires 12 can be accommodated) extending in parallel are formed between the plurality of plate-like portions 32 and between the partition portions 36a.

  When the protector 30 is cut along a plane orthogonal to the extending direction of the partition portion 36a, a ladder-like cross section in which a plurality of partition portions 36a are interposed between the two plate-like portions 32 is shown.

  For example, the protector 30 continuously extrudes the hollow plate 30B by an extrusion apparatus that extrudes resin from the extrusion hole corresponding to the ladder-shaped cross section, and the hollow plate 30B is protected from the electric wire to be protected. It can be formed by cutting (see the two-dot chain line in FIG. 3) according to the number of 12 wires, the distance to be protected in the electric wire 12, and the like (see FIG. 3). Thereby, the protector 30 can be easily manufactured at low cost.

  The shield layer 40 is formed on the inward surface of each of the plate-like portions 32, and the shield layer 42 is formed on at least one surface (here, both surfaces) of the partition portion 36a. The shield layer 42 is not formed on the end surface around the plate-like portion 32. Here, a prismatic space is formed by the two plate-like portions 32 and the two adjacent partitioning portions 36a, and the shield layers 40 and 42 are formed so as to surround four sides of the prismatic space. Has been. The shield layer 40 can perform electromagnetic shielding between the electric wire 12 accommodated in the space and the outside. Further, the shield layer 42 can perform electromagnetic shielding between the electric wire 12 accommodated in the space and the electric wire 12 accommodated in the adjacent space.

  In addition, the shield layer is not formed on the outward main surface of the plate-like portion 32. Therefore, the part exposed to the outside in the outer peripheral part of this protector exhibits insulation.

  However, as shown in FIG. 4, the edge of the plate-like portion 32 is folded for the purpose of grounding the shield layers 40 and 42, and the shield layer 40 of the folded portion 32 p is exposed on the surface of the protector 30. Good. Thereby, an earth wire etc. can be easily connected to each part exposed to the outside among shield layers 40 by soldering etc., and shield layers 40 and 42 can be grounded easily.

  The shield layers 40 and 42 are formed by, for example, applying a conductive paint to a portion facing the space between the plate-like portion 32 and the partition portion 36a, or plating a conductive material on a resin. Can be formed. For example, the conductive paint is applied to the portion or the conductive material is plated, for example, by immersing the hollow plate 30B in the conductive paint or a plating solution in a state where the outward surface of the plate-like portion 32 of the protector 30 is masked. This can be done.

  In addition, like a protector 30C of the electric wire module 10C shown in FIG. 5, a plate-like portion 32C corresponding to the plurality of plate-like portions 32 and a partition portion 36Ca of the interposition portion 36C corresponding to the partition portion 36a of the interposition portion 36 are provided. It may be formed separately. Here, the shield layer 40C is formed on the entire inner surface of the two plate-like portions 32C. A shield layer 42C is formed on one surface of the partition portion 36Ca. Similarly to the above, the shield layer 40C and the shield layer 42C may be formed by conductive paint or conductive plating, or may be formed by pasting copper foil or aluminum foil or the like. .

  And the protector 30C which has the same hollow structure as the said protector 30 by joining the both sides of each partition part 36Ca to the main surface used as the inner surface of two plate-shaped parts 32C by an adhesive agent or heat welding. Can be manufactured.

  About this protector 30C, since the common shield layer 40C is affixed to the entire inner surface of the plate-like portion 32C, as shown in FIG. 6, one corner of the plate-like portion 32C is folded, and the folded portion 32Cp. If the shield layer 40C is exposed, the exposed portion can be used to easily ground the entire shield layer 40C and the other shield layers 40C and 42C that are in direct or indirect contact with the shield layer 40C. .

  In addition, it is preferable that the thickness dimension of the protectors 30 and 30C is 1.5 mm-15.0 mm. Moreover, it is preferable that the pitch of the partition parts 36a and 36Ca which partition the space formed in parallel in the protectors 30 and 30C is 4 mm to 20 mm.

  According to the electric wire module 10 configured as described above, at least one of the plurality of plate-like portions 32 (or 32C) excluding the main surface facing the outside and the interposition portion 36 (or 36C) (here) Since both are provided with the shield layers 40 and 42 (or 40C and 42C), the electric wires accommodated in the protector 30 (or the protector 30C) can be electromagnetically shielded. Further, the protector 30 (30C) can physically protect the electric wire 12 from its peripheral members.

  In particular, since it is provided on at least one of the plurality of plate-like portions 32 (or 32C) provided on one main surface side or the other main surface side of the protector 30 (or 30C), the protector 30 ( Electromagnetic shielding can be performed between the inside and outside of 30C). In addition, the shield layer may be provided only in the plate-shaped part provided in either main surface of a protector. Even in this case, electromagnetic shielding can be performed between the electric wire in the protector and the outside on the side where the shield layer is provided.

  Further, the interposition portion 36 (or 36C) includes a plurality of partition portions 36a (or 36Ca) that form a plurality of elongated spaces extending in parallel between the plurality of plate-like portions 32 (or 32C). Can be accommodated and held in parallel.

  And since the shield layer 40 (40C) is provided in the partition part 36a (or 36Ca), electromagnetic shielding can be performed between the electric wires 12 accommodated in each space.

  Even when electromagnetic shielding is required for the wiring, the electric wire accommodated in the protector 30 (or 30C) is generally not provided with a shield layer made of a braided layer or aluminum foil. A simple electric wire can be used. Moreover, such a general electric wire can be subjected to a stripping process at an end, a terminal crimping process, or the like using a general-purpose electric wire processing apparatus. For this reason, this electric wire module 10 (or 10C) can be provided at low cost.

  In addition, since the shield layers 40 and 42 (or 40C and 42C) are not exposed to the outside of the protector 30 (or 30C) except for a portion to be grounded, the shield layers 40 and 42 (or 40C, 42C) can be prevented from coming into contact with a conductive portion of the vehicle body at an unintended location and being grounded at an unintended location. Thereby, the electric potential of the electric circuit comprised by this electric wire module 10 (or 10C) can be stabilized, and the reliability improvement of an electric circuit can be aimed at.

  Moreover, since protector 30 (30C) itself is a plate-shaped form, there exists an advantage that it can be stored and transported efficiently. Moreover, since the protector 30 (30C) of the width | variety and length as needed can be manufactured by cut | disconnecting the said hollow board material suitably, there also exists an advantage that it is excellent in versatility.

{Modifications}
In addition to the above configuration, various configurations can be adopted as the plate-shaped protector having a hollow structure.

  FIG. 7 is a partially cutaway perspective view showing a hollow plate member 130B for manufacturing a protector 130 according to a modification. The hollow plate member 130B according to the example illustrated in FIG. 7 has a configuration in which an interposition part 136 is provided between a plurality (here, two) of plate-like parts 132.

  The interposition part 136 is a member formed in a plate shape having an uneven shape. The interposition part 136 is joined to the inward surface of the plate-like part 132 in a state of being sandwiched between the plurality of plate-like parts 132. The joining of the plate-like portion 132 and the interposition portion 136 is performed by, for example, an adhesive or a pressure sensitive adhesive. Thereby, a hollow structure corresponding to the uneven shape exhibited by the interposition portion 136 is formed between the plurality of plate-like portions 132.

  Here, the interposition part 136 is formed in a shape in which a peak part 136a and a valley part 136b are continuous in a wave shape. The extending direction of the peak part 136a and the extending direction of the valley part 136b are in a parallel positional relationship. Therefore, when the interposition part 136 is viewed in plan, the plurality of peak parts 136a and the plurality of valley parts 136b are alternately arranged. It is set as the structure formed in parallel. The top part of the peak part 136a and the bottom part of the valley part 136b may be curved, or may be bent at a predetermined angle. Of the peak portion 136a and the valley portion 136b, a portion disposed between the plate-like portions 132 becomes a partition portion that forms a plurality of spaces extending in parallel.

  Further, a shield layer 140 is formed on the surface facing the inside of the plate-like portion 132, and a shield layer 142 is formed on at least one surface of the interposition portion 136. Similarly to the above, the shield layers 140 and 142 may be formed by a conductive paint or conductive plating, or may be formed by attaching a copper foil or an aluminum foil.

  And the interposition part 136 is inserted | pinched between the several plate-shaped parts 132, while the lower surface of the bottom part of the trough part 136b and the lower plate-shaped part 132 are joined, the upper surface of the top part of the peak part 136a, and upper side The plate-like portion 132 is joined.

  The hollow plate member 130B is appropriately cut according to the number of the electric wires 12 to be accommodated, the length dimension to be accommodated, and the like to form the protector 130, and is formed inside each peak portion 136a and each valley portion 136b. By accommodating the electric wire 12 in an elongated space (see the two-dot chain line in FIG. 7), an electric wire module is configured.

  Also with this protector 130 and electric wire module, the same effect as the said embodiment can be obtained.

  FIG. 8 is a partially cutaway perspective view showing a hollow plate member 230B for manufacturing a protector 230 according to another modification, and FIG. 9 is a partial cross-sectional view showing the hollow plate member 230B. The hollow plate member 230B according to the example shown in FIG. 8 has a configuration in which an interposition portion 236 is provided between a plurality (here, two) of plate-like portions 232.

  That is, the interposition part 236 is a member formed in a plate shape having an uneven shape, and more specifically, a configuration in which a plurality of protrusions 237 are formed so as to be scattered in a plan view of the interposition part 236. Has been. Here, in a state in which the interposition part 236 is viewed in plan, the plurality of protrusions 237 are formed so as to be arranged at regular intervals in the vertical and horizontal directions. The protrusion 237 is formed so as to protrude toward the one main surface side from the substrate portion 238 extending in a flat plate shape in the interposition portion 236, and has a shape in which the upper end portion of the cylinder is closed. Here, the protrusion 237 is formed in a shape that gradually narrows upward, ie, a frustum shape. The protrusion 237 may be formed in a truncated cone shape, may be formed in a truncated pyramid shape, or may be formed in a shape obtained by rounding the corners of the truncated pyramid.

  Further, a shield layer 240 is formed on the surface of the plate-like portion 232 facing inward. Similarly to the above, the shield layer 240 may be formed by a conductive paint or conductive plating, or may be formed by attaching a copper foil or an aluminum foil.

  Then, the interposition portion 236 is sandwiched between the plurality of plate-like portions 232, the lower surface of the substrate portion 238 is joined to the lower plate-like portion 232, and the top portion of the protrusion 237 is joined to the upper plate-like portion 232. ing.

  The hollow plate member 230B is appropriately cut according to the number of the electric wires 12 to be accommodated, the length dimension to be accommodated, and the like to constitute the protector 230, and the electric wires 12 are accommodated in the spaces between the projections 237. (Refer to the two-dot chain line in FIG. 8), an electric wire module is configured.

  In addition, you may change the modification shown in FIG. 9 like the modification shown in FIG. In the hollow plate member 330 </ b> B shown in FIG. 10, a combination of the two interposition portions 236 is used as the interposition portion 336. That is, the substrate portion 238 of the interposition portion 236 is joined to the upper surface of the lower plate-like portion 332, and the protrusion 237 protrudes above the substrate portion 238. Further, the substrate portion 238 of the interposition portion 236 is joined to the lower surface of the upper plate-like portion 332, and the protrusion 237 protrudes below the substrate portion 238. And the interposition part 336 which the two interposition parts 236 combined is interposed between the two plate-shaped parts 232 by joining the top parts of the some protrusion 237.

  Even with the protector 230 and the electric wire module configured by the hollow plate members 230B and 330B having such a configuration, the same operational effects as those of the above-described embodiment can be obtained except for the effect by providing the shield layer at the interposed portion. .

  Moreover, although the said embodiment etc. demonstrated the structure which concerns on the electric wire module 10 provided with the one protector 30, the electric wire module may be provided with the some protector.

  In the example shown in FIG. 11, the intermediate portions in the extending direction of the plurality of electric wires 12 are accommodated by a single protector 530A. A part of the plurality of electric wires 12 extending from one end portion (left side in FIG. 11) of the protector 530A is accommodated by another protector 530B, and the remaining portion extends outside without being protected by the protector. Further, a part of the plurality of electric wires 12 extending from the other end of the protector 530B (the right side in FIG. 11) is accommodated by another protector 530C, and the other part is accommodated by another protector 530D. A protector provided with a shield layer as described in the above embodiment or each modification may be applied to at least one of the protectors 530A, 530B, 530C, and 530D. In addition, the connector 550 is connected to the edge part of the some electric wire 12, and the said connector is connector-connected to the electrical component in a vehicle.

  Thereby, the wire harness for wiring which maintained in the parallel state, branching a some electric wire suitably can be comprised.

  In the embodiment and each modification, three or more plate-like portions may be provided. In this case, it is preferable that the interposition part is provided between each plate-shaped part.

  In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

  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 Electric wire module 12 Electric wire 30, 30C, 130, 230 Protector 32, 32C, 132, 232, 332 Plate-like part 36, 36C, 136, 236, 336 Interposition part 40, 42, 40C, 42C, 140, 142, 240 Shield Layer 36a, 36Ca Partition 530A, 530B, 530C, 530D Protector

Claims (4)

A plurality of plate-like portions, interposed an including protector and intervening portion forming a hollow structure between them between the plurality of plate-like portions, one of said protector among the plurality of plate-like portions A protector provided with a shield layer on at least one of the two plate-like portions disposed on the main surface side and the other main surface side and excluding the main surface facing the outside ;
At least one electric wire housed in the hollow structure of the protector;
Equipped with a,
Of the two plate-like portions, the edge of the plate-like portion provided with the shield layer is folded to form a folded portion, and the shield layer of the folded portion is exposed on the surface of the protector. module. The electric wire module according to claim 1 ,
The interposition part is an electric wire module including a partition part that forms a plurality of spaces extending in parallel between the plurality of plate-like parts. The electric wire module according to claim 2 ,
The said shield layer is an electric wire module provided in the said partition part. A protector for protecting the electric wire,
A plurality of plate-like portions;
An intervening portion interposed between the plurality of plate-like portions and forming a hollow structure capable of accommodating the electric wire therebetween;
Equipped with a,
Of the plurality of plate-like portions, a shield layer is provided on a portion excluding the main surface facing at least one of the two plate-like portions disposed on the one main surface side and the other main surface side of the protector. Provided,
A protector in which an edge portion of the plate-like portion provided with the shield layer is folded back to form a folded portion, and the shield layer of the folded portion is exposed on the surface of the protector. .

Images