Wiring member

Abstract

To provide a wiring member capable of reducing heat expansion and heat shrinkage of a mold resin.SOLUTION: A wiring member 1 includes a plurality of electric wires 3, a holder 2 in which a plurality of arrangement grooves for respectively arranging the plurality of electric wires 3 are formed, and a mold resin 4 molded with the plurality of electric wires 3 and the holder 2. The plurality of arrangement grooves are formed in parallel with each other and include a plurality of parallel arrangement grooves 21 and 22 that are opened on the same side mutually. An embedment part 25 embedded within the mold resin 4 in the holder 2 includes embedment interposed walls 273 and 293 interposed between the parallel arrangement grooves 21 and 22, and embedment exterior walls 281 and 201 formed on the opposite side of the embedment interposed walls 273 and 293 in the parallel arrangement grooves 21 and 22. In at least one cross section orthogonal to a groove forming direction X of the parallel arrangement grooves 21 and 22, the embedment interposed walls 273 and 293 project farther toward the opening side of the parallel arrangement grooves 21 and 22 than the embedment exterior walls 281 and 201.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a wiring member. [Background technology]

[0002] Patent Document 1 discloses a wiring member including a plurality of electric wires, a holder that holds the plurality of electric wires, and a molding resin that molds the plurality of electric wires and the holder. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-98198 A Summary of the Invention [Problem to be solved by the invention]

[0004] The wiring member described in Patent Document 1 has room for improvement in terms of reducing the thermal expansion and contraction of the molding resin by suppressing the volume of the molding resin.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a wiring member capable of reducing thermal expansion and thermal contraction of a molding resin. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention provides a wiring member comprising: a holder having a plurality of electric wires, a plurality of arrangement grooves formed in which the plurality of electric wires are respectively arranged; and a molded resin formed by molding the plurality of electric wires and the holder, wherein the plurality of arrangement grooves have a plurality of parallel arrangement grooves formed in parallel to each other and opening on the same side as each other, and an embedded portion embedded in the molded resin in the holder has an embedded intervening wall interposed between the parallel arrangement grooves and an embedded outer wall formed on the opposite side to the embedded intervening wall in a parallel arrangement groove located at an end of the plurality of parallel arrangement grooves, and in at least one cross section perpendicular to the groove formation direction of the parallel arrangement grooves, the embedded intervening wall protrudes further toward the opening side of the parallel arrangement groove than the embedded outer wall. Effect of the Invention

[0007] According to the present invention, it is possible to provide a wiring member capable of reducing the thermal expansion and thermal contraction of a molding resin. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of a wiring member in the first embodiment. [Diagram 2] FIG. 2 is a perspective view of a holder and a plurality of electric wires in the first embodiment. [Diagram 3] FIG. 2 is a perspective view of a holder in the first embodiment. [Figure 4] 4 is a cross-sectional view of a wiring member perpendicular to an electric wire in the first embodiment. FIG. [Diagram 5] 3 is a cross-sectional view of a wiring member parallel to an electric wire in the first embodiment. FIG. [Figure 6] 11 is a cross-sectional view of a wiring member perpendicular to an electric wire in the second embodiment. FIG. [Figure 7] 13 is a cross-sectional view of a wiring member perpendicular to electric wires in the third embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [First embodiment] A first embodiment of the present invention will be described with reference to Figures 1 to 5. Note that the embodiment described below is shown as a preferred specific example for carrying out the present invention, and while there are some parts that specifically exemplify various technical matters that are technically preferable, the technical scope of the present invention is not limited to this specific embodiment.

[0010] Fig. 1 is a perspective view of a wiring member 1. As shown in Fig. 1, the wiring member 1 includes a holder 2, a plurality of electric wires 3 (four in this embodiment) held by the holder 2, and a molding resin 4 that integrates the plurality of electric wires 3 and the holder 2.

[0011] Fig. 2 is a perspective view of the holder 2 and a plurality of electric wires 3. Fig. 3 is a perspective view of the holder 2. Fig. 4 is a cross-sectional view of the wiring member 1 perpendicular to the electric wires 3. Fig. 5 is a cross-sectional view of the wiring member 1 parallel to the electric wires 3.

[0012] The holder 2 is made of a resin having excellent mechanical strength, heat resistance and electrical insulation, such as glass fiber-reinforced PPS (polyphenylene sulfide). As shown in Fig. 2 and Fig. 4, the holder 2 has four arrangement grooves 21 and 22 in which the four electric wires 3 are respectively arranged.

[0013] As shown in FIG. 2 to FIG. 4, the four arrangement grooves 21, 22 include two first parallel arrangement grooves 21 and two second parallel arrangement grooves 22. The two first parallel arrangement grooves 21 are formed in parallel with each other and open to the same side (hereinafter referred to as the first side Z1). The two second parallel arrangement grooves 22 are formed in parallel with each other and open to the second side Z2 opposite to the first side Z1. The first parallel arrangement grooves 21 and the second parallel arrangement grooves 22 are formed along the same direction (axial direction X described later). The arrangement direction of the two first parallel arrangement grooves 21 and the arrangement direction of the two second parallel arrangement grooves 22 are the same direction (width direction Y described later).

[0014] Hereinafter, the groove formation direction of the first parallel arrangement groove 21 and the second parallel arrangement groove 22 is referred to as the axial direction X. In addition, the direction perpendicular to the axial direction X, in which the two first parallel arrangement grooves 21 are arranged and the two second parallel arrangement grooves 22 are arranged, is referred to as the width direction Y, and the direction perpendicular to both the axial direction X and the width direction Y is referred to as the up-down direction Z. One side of the up-down direction Z is the first side Z1 where the first parallel arrangement groove 21 opens, and the other side of the up-down direction Z is the second side Z2 where the second parallel arrangement groove 22 opens. Note that the expressions up and down do not limit, for example, the attitude of the wiring member 1 with respect to the vertical direction in use. In this embodiment, the holder 2 has a shape symmetrical in the up-down direction Z.

[0015] 4, the two first parallel arrangement grooves 21 and the two second parallel arrangement grooves 22 are formed at positions overlapping each other in the up-down direction Z. Each of the first parallel arrangement grooves 21 and the second parallel arrangement grooves 22 is formed so as to follow the surface of the electric wire 3 to be arranged. In this embodiment, the electric wire 3 has a circular cross section perpendicular to the longitudinal direction of the electric wire 3, and each of the first parallel arrangement grooves 21 and the second parallel arrangement grooves 22 is formed so as to have a curved surface such that a cross section perpendicular to the axial direction X is an arc shape.

[0016] 3, side surfaces 23 located on both sides in the width direction Y of the holder 2 have concave surfaces 231 formed to be recessed inward in the width direction Y. In addition, the holder 2 has opposing surfaces 24 that face each other in the axial direction X with the inner region of the concave surface 231 interposed therebetween.

[0017] 1, the region in the axial direction X between the opposing surfaces 24 of the holder 2 is an embedded portion 25 embedded in the molded resin 4, and the portions on both sides of the embedded portion 25 in the axial direction X of the holder 2 are exposed portions 26 exposed from the molded resin 4. The opposing surfaces 24, together with a metal mold for molding the molded resin 4, define a cavity (i.e., a space in which the molded resin 4 is molded) when the molded resin 4 is molded, and block the flow of the molten resin that becomes the molded resin 4 when the molded resin 4 is molded. As a result, the region in the axial direction X between the opposing surfaces 24 of the holder 2 becomes the embedded portion 25 embedded in the molded resin 4.

[0018] 3 and 4, the holder 2 has a first intervening wall 27 and a first outer wall 28. The first intervening wall 27 is interposed between the first parallel arranged grooves 21. The first outer wall 28 is formed on the opposite side to the first intervening wall 27 in the first parallel arranged groove 21 located at the end of the multiple first parallel arranged grooves 21 (in this embodiment, each of the two first parallel arranged grooves 21). The first intervening wall 27 and the first outer wall 28 laterally partition the first parallel arranged groove 21.

[0019] As shown in FIGS. 3 to 5, the first intermediate wall 27 has a first base portion 271 and a first protruding portion 272 protruding from the first base portion 271 to the first side Z1. As shown in FIG. 4, the height of a surface 271a of the first base portion 271 on the first side Z1 in the up-down direction Z is aligned with the height of a surface 282a of a first exposed outer wall 282 of the first outer wall 28 on the first side Z1. As shown in FIGS. 3 and 5, the first protruding portion 272 is formed in a partial region of the first intermediate wall 27 in the axial direction X. Specifically, the first protruding portion 272 is formed in a central portion of the first intermediate wall 27 excluding both ends in the axial direction X, and is formed long in the axial direction X. The length of the first protruding portion 272 in the axial direction X can be, for example, half or more of the length of the embedded portion 25 in the axial direction X and less than the length of the embedded portion 25 in the axial direction X.

[0020] Hereinafter, of the first intervening wall 27, a portion constituting the embedded portion 25 will be referred to as a first embedded intervening wall 273, and a portion constituting the exposed portion 26 will be referred to as a first exposed intervening wall 274. The first embedded intervening wall 273 is composed of the entire first protruding portion 272 and a central portion in the axial direction X of the first base portion 271. The first exposed intervening wall 274 is composed of portions on both sides of the first embedded intervening wall 273 in the axial direction X. The first protruding portion 272 is formed in a range excluding both ends of the first embedded intervening wall 273 in the axial direction X, and a portion of the molded resin 4 is disposed on each of both sides of the protruding portion in the axial direction X.

[0021] 3 and 4, an end surface 272a of the first protrusion 272 on the first side Z1 is formed in a flat shape perpendicular to the up-down direction Z. As shown in FIG. 4, the end surface 272a of the first protrusion 272 is configured to be wider than an end surface 281a of the first side Z1 of the first embedded outer wall 281. Corners 272b located on both sides of the end surface 272a of the first protrusion 272 in the width direction Y are rounded into a curved shape. This prevents the electric wires 3 from being damaged by the corners when the electric wires 3 are assembled into the first parallel arrangement groove 21.

[0022] As shown in Fig. 3, the first outer wall 28 has a first embedded outer wall 281 formed in the center in the axial direction X and constituting a part of the embedded portion 25, and a first exposed outer wall 282 formed on both sides of the first embedded outer wall 281 in the axial direction X and constituting a part of the exposed portion 26. As shown in Fig. 4 and Fig. 5, the position of the end face 281a of the first embedded outer wall 281 is located on the second side Z2 with respect to the position of the face 282a on the first side Z1 of the first exposed outer wall 282. In Fig. 5, the outline positions of the first outer wall 28 and the second outer wall 20 are indicated by dashed lines.

[0023] 4, in at least one cross section perpendicular to the axial direction X, the first embedded intermediate wall 273 protrudes toward the first side Z1 further than the first embedded outer wall 281. In this embodiment, both the first base portion 271 and the first protruding portion 272 of the first embedded intermediate wall 273 protrude toward the first side Z1 further than the first embedded outer wall 281.

[0024] In the vertical direction Z, the position of the end face 272a of the first protrusion 272 is located on a first side Z1 of the center position C1 of the portion of the electric wire 3 arranged in the first parallel arrangement groove 21, and the position of the end face 281a of the first embedded outer wall 281 is located on a second side Z2 of the center position C1. In the vertical direction Z, the position of the end face 272a of the first protrusion 272 is aligned with the position of the end 31 on the first side Z1 of the portion of the electric wire 3 arranged in the first parallel arrangement groove 21.

[0025] When it is said that the positions of a plurality of parts are aligned, it includes not only the case where the positions of the plurality of parts in the vertical direction Z are strictly the same, but also the case where, for example, the positions of the plurality of parts are slightly shifted due to manufacturing tolerances or the like, even though the plurality of parts are designed to be formed at the same position in the vertical direction Z. For example, when it is said that the position of the end face 272a of the first protrusion 272 is aligned with the position of the end 31 of the electric wire 3, it may include the case where the length therebetween in the vertical direction Z is 0.7 mm or less, or 25% or less (more preferably, 10% or less) of the diameter of the electric wire 3.

[0026] 4, the holder 2 has a second intervening wall 29 and a second outer wall 20. The second intervening wall 29 is interposed between the second parallel arrangement grooves 22. The second outer wall 20 is formed on the opposite side to the second intervening wall 29 in the second parallel arrangement groove 22 located at the end of the plurality of second parallel arrangement grooves 22 (in this embodiment, each of the two second parallel arrangement grooves 22). The second intervening wall 29 and the second outer wall 20 laterally partition the second parallel arrangement groove 22.

[0027] As shown in FIG. 4 and FIG. 5, the second intermediate wall 29 has a second base portion 291 and a second protruding portion 292 protruding from the second base portion 291 to the second side Z2. As shown in FIG. 4, the height of a surface 291a of the second base portion 291 on the second side Z2 in the up-down direction Z is aligned with the height of a surface 202a of a second exposed outer wall 202 of the second outer wall 20 on the second side Z2, which will be described later. As shown in FIG. 5, the second protruding portion 292 is formed in a partial region of the second intermediate wall 29 in the axial direction X. Specifically, the second protruding portion 292 is formed in a central portion of the second intermediate wall 29 excluding both ends in the axial direction X, and is formed long in the axial direction X. The length of the second protruding portion 292 in the axial direction X can be, for example, half or more of the length of the embedded portion 25 in the axial direction X and less than the length of the embedded portion 25 in the axial direction X.

[0028] Hereinafter, of the second intervening wall 29, a portion constituting the embedded portion 25 will be referred to as a second embedded intervening wall 293, and a portion constituting the exposed portion 26 will be referred to as a second exposed intervening wall 294. The second embedded intervening wall 293 is composed of the entire second protruding portion 292 and a central portion in the axial direction X of the second base portion 291. The second exposed intervening wall 294 is composed of portions on both sides of the second embedded intervening wall 293 in the axial direction X. The second protruding portion 292 is formed in a range excluding both ends of the second embedded intervening wall 293 in the axial direction X, and a portion of the molded resin 4 is disposed on each of both sides of the protruding portion in the axial direction X.

[0029] 4, an end surface 292a of the second side Z2 of the second protrusion 292 is formed in a flat shape perpendicular to the up-down direction Z. The end surface 292a of the second protrusion 292 is configured to be wider than the end surface 201a of the second side Z2 of the second embedded outer wall 201. Corners 292b located on both sides of the end surface 292a of the second protrusion 292 in the width direction Y are rounded into a curved shape. This prevents the electric wires 3 from being damaged by the corners when the electric wires 3 are assembled into the second parallel arrangement groove 22.

[0030] 3, the second outer wall 20 has a second embedded outer wall 201 formed in the center in the axial direction X and constituting a part of the embedded portion 25, and second exposed outer walls 202 formed on both sides of the second embedded outer wall 201 in the axial direction X and constituting a part of the exposed portion 26. As shown in Fig. 4 and Fig. 5, the position of the end face 201a of the second embedded outer wall 201 is located closer to the first side Z1 than the position of the face 202a of the second side Z2 of the second exposed outer wall 202.

[0031] 4, in at least one cross section perpendicular to the axial direction X, the second embedded intermediate wall 293 protrudes toward the second side Z2 further than the second embedded outer wall 201. In this embodiment, both the second base portion 291 and the second protruding portion 292 of the second embedded intermediate wall 293 protrude toward the second side Z2 further than the second embedded outer wall 201.

[0032] In the vertical direction Z, the position of the end face 292a of the second protrusion 292 is located on the second side Z2 of the center position C2 of the portion of the electric wire 3 arranged in the second parallel arrangement groove 22, and the position of the end face 201a of the second embedded outer wall 201 is located on the first side Z1 of the center position C2. In the vertical direction Z, the position of the end face 292a of the second protrusion 292 is aligned with the position of the end portion 32 on the second side Z2 of the portion of the electric wire 3 arranged in the second parallel arrangement groove 22.

[0033] 1 and 4, four electric wires 3 are held by a holder 2. Each of the four electric wires 3 has a conductor portion made of a conductive metal or the like and an electrically insulating coating covering the surface of the conductor portion. The conductor portion is made of, for example, copper or a copper alloy, and the coating can be, for example, an enamel coating.

[0034] The conductor portion has enough rigidity to maintain its own shape. In this embodiment, the conductor portion is formed into a predetermined shape by pressing a solid round wire having a circular cross section. Note that the configuration of the electric wire 3 is not limited to the above-mentioned configuration, and for example, the conductor portion may be formed of a twisted wire or a rectangular wire.

[0035] The electric wires 3 are fitted into the first parallel arrangement groove 21 or the second parallel arrangement groove 22. In this embodiment, the electric wires 3 are fitted into the first parallel arrangement groove 21 or the second parallel arrangement groove 22 with a loose fit.

[0036] The molded resin 4 is formed by molding the holder 2 and the four electric wires 3 held by the holder 2. That is, the molded resin 4 is formed by placing the holder 2 and the four electric wires 3 held by the holder 2 in a metal mold, injecting molten resin into the metal mold, and allowing it to harden. The molded resin 4 covers the holder 2 and the four electric wires 3 held by the holder 2 in the region in the axial direction X between the pair of opposing surfaces 24.

[0037] As shown in FIG. 1, the molded resin 4 is formed so that the outer shape is a rectangular parallelepiped. As shown in FIG. 4, when viewed in a cross section perpendicular to the axial direction X, the molded resin 4 is formed so that the thickness of each part does not vary greatly. For example, as described above, the first embedded intermediate wall 273 protrudes toward the first side Z1 from the first embedded outer wall 281, and the second embedded intermediate wall 293 protrudes toward the second side Z2 from the second embedded outer wall 201, thereby filling the gap between the electric wires 3 adjacent in the width direction Y, and as a result, the thickness of each part of the molded resin 4 is made uniform. If the thickness of each part of the molded resin 4 varies greatly, for example, the thick part of the molded resin 4 is thermally contracted relatively greatly, and sink marks are likely to occur in the molded resin 4. Therefore, as in this embodiment, it is preferable to make the thickness of each part of the molded resin 4 uniform. In addition, for example, the molded resin 4 may have four corners rounded in a curved shape when viewed from the axial direction X. This allows the thickness of each portion of the molding resin 4 to be more uniform.

[0038] For example, the thickness T1 of the molded resin 4 at the first side Z1 of the first protruding portion 272, the thickness T2 of the molded resin 4 at the second side Z2 of the second protruding portion 292, and the thickness T3 of the molded resin 4 at the outer side in the width direction of the holder 2 are all equal to each other. In this embodiment, each of these thicknesses T1, T2, and T3 is equal to the thickness T4 of the molded resin 4 at the outer side in the axial direction of the first protruding portion 272 and the second protruding portion 292, as shown in Fig. 5. The fact that the thicknesses of multiple portions are equal includes not only cases where the thicknesses of multiple portions are strictly the same, but also cases where the thicknesses of multiple portions are slightly different due to manufacturing tolerances or the like, even if the multiple portions are designed to have the same thickness. For example, the difference between the maximum and minimum values ​​of the thickness T1 of the first side Z1 of the first protrusion 272 in the molded resin 4, the thickness T2 of the second side Z2 of the second protrusion 292, and the thickness T3 of the outer portion in the width direction of the holder 2 may be 0.7 mm or less, or may be 25% or less (more preferably, 10% or less) of the diameter of the wire 3.

[0039] The mold resin 4 may be made of the same resin as the holder 2, or may be made of a resin different from that of the holder 2, for example.

[0040] The wiring member 1 of this embodiment is mounted on an automobile such as an electric automobile or a hybrid automobile, and is connected to a motor that generates a driving force for running. For example, the wiring member 1 connects a coil end of a stator of the motor to an electrode of a terminal block of the motor. For example, the two electric wires 3 of the wiring member 1 may be connected to any one of the U-, V-, and W-phase windings of the stator (e.g., the U-phase winding), and the other two electric wires 3 may be connected to any other one of the U-, V-, and W-phase windings of the stator (e.g., the V-phase winding). Note that the use of the wiring member 1 is not limited to this.

[0041] (Functions and Effects of the First Embodiment) In the wiring member 1 in this embodiment, in at least one cross section perpendicular to the axial direction X, the first embedded intermediate wall 273 protrudes toward the first side Z1 more than the first embedded outer wall 281. In addition, in at least one cross section perpendicular to the axial direction X, the second embedded intermediate wall 293 protrudes toward the second side Z2 more than the second embedded outer wall 201. Therefore, the first embedded intermediate wall 273 fills the space between the electric wires 3 arranged in the first parallel arrangement groove 21, and the second embedded intermediate wall 293 fills the space between the electric wires 3 arranged in the second parallel arrangement groove 22, resulting in a reduction in the volume of the molded resin 4 covering them. This can reduce the thermal expansion and thermal contraction of the molded resin 4.

[0042] Moreover, the position of the end of the first side Z1 of the first embedded intervening wall 273 (the end face 272a of the first protruding portion 272 in this embodiment) is located on the first side D1 of the center position C1 of the portion of the electric wire 3 arranged in the first parallel arrangement groove 21. Moreover, the position of the end of the second side Z2 of the second embedded intervening wall 293 (the end face 292a of the second protruding portion 292 in this embodiment) is located on the second side D2 of the center position C2 of the portion of the electric wire 3 arranged in the second parallel arrangement groove 22. This makes it easier to further reduce the volume of the molded resin 4, and further reduces the thermal expansion and thermal contraction of the molded resin 4.

[0043] In addition, in the vertical direction Z, the position of the end of the first side Z1 of the first embedded intervening wall 273 is aligned with the position of the end 31 of the first side Z1 of the portion of the electric wire 3 arranged in the first parallel arrangement groove 21. In addition, in the vertical direction Z, the position of the end of the second side Z2 of the second embedded intervening wall 293 is aligned with the position of the end 32 of the second side Z2 of the portion of the electric wire 3 arranged in the second parallel arrangement groove 22. This makes it easy to make the thickness of the molded resin 4 uniform.

[0044] In addition, in the vertical direction Z, the position of the end of the first side Z1 of the first embedded outer wall 281 is located on the second side Z2 from the center position C1. In addition, in the vertical direction Z, the position of the end of the second side Z2 of the second embedded outer wall 201 is located on the first side Z1 from the center position C2. In this way, by shortening the protruding length of the first embedded outer wall 281 and the second embedded outer wall 201 in the vertical direction Z, the occurrence of a short shot in which the molten resin does not sufficiently reach the first embedded outer wall 281 and the second embedded outer wall 201 of the holder 2 during molding of the holder 2 is suppressed. This makes it possible to make the first embedded outer wall 281 and the second embedded outer wall 201 thinner, reduce the dimension in the width direction of the molded resin 4, and reduce the overall size of the wiring member 1.

[0045] Moreover, the width of the first embedded intermediate wall 273 is greater than the width of the first embedded outer wall 281. Moreover, the width of the second embedded intermediate wall 293 is greater than the width of the second embedded outer wall 201. Therefore, the thickness of the molding resin 4 can be easily made uniform.

[0046] Moreover, the first embedded intermediate wall 273 has a first protruding portion 272 that protrudes to the first side Z1 and is formed long along the axial direction X. Moreover, the second embedded intermediate wall 293 has a second protruding portion 292 that protrudes to the second side Z2 and is formed long along the axial direction X. This makes it easier to further reduce the volume of the molded resin 4.

[0047] Moreover, the first protruding portion 272 is formed in a portion of the first embedded intervening wall 273 in the axial direction X excluding both ends, and a portion of the molded resin 4 is disposed on each of both sides of the first protruding portion 272 in the axial direction X. Moreover, the second protruding portion 292 is formed in a portion of the second embedded intervening wall 293 in the axial direction X excluding both ends, and a portion of the molded resin 4 is disposed on each of both sides of the second protruding portion 292 in the axial direction X. Therefore, when molding the molded resin 4, a gap is formed between the mold and the first protruding portion 272 and the second protruding portion 292, and therefore interference of the mold with the first protruding portion 272 and the second protruding portion 292 is suppressed.

[0048] As described above, according to this embodiment, it is possible to provide the wiring member 1 capable of reducing the thermal expansion and thermal contraction of the molding resin.

[0049] [Second embodiment] A second embodiment of the present invention will be described with reference to Fig. 6. Fig. 6 is a cross-sectional view of wiring member 1 perpendicular to electric wires 3 in this embodiment.

[0050] The wiring member 1 of this embodiment has two electric wires 3. In this embodiment, the holder 2 is formed with two first parallel arrangement grooves 21, but is not formed with two second parallel arrangement grooves (see reference numeral 22 in FIGS. 1 to 4). In this embodiment, the thickness T1 of the portion on the first side Z1 of the first protrusion 272 in the molded resin 4, the thickness T3 of the portion on the outer side in the width direction of the holder 2, and the thickness T5 of the portion on the second side Z2 of the surface of the second side Z2 of the holder 2 are all equal to each other.

[0051] The other configurations of this embodiment are similar to those of the first embodiment. In addition, among the symbols used in the second and subsequent embodiments, the same symbols as those used in the previously described embodiments represent the same components, etc. as those in the previously described embodiments, unless otherwise specified.

[0052] (Functions and Effects of the Second Embodiment) This embodiment also has the same functions and effects as the first embodiment.

[0053] [Third embodiment] A third embodiment of the present invention will be described with reference to Fig. 7. Fig. 7 is a cross-sectional view of wiring member 1 perpendicular to electric wires 3 in this embodiment.

[0054] The wiring member in this embodiment has six electric wires. In this embodiment, the holder 2 is formed with three first parallel arrangement grooves and three second parallel arrangement grooves. The rest is similar to the first embodiment.

[0055] (Functions and Effects of the Third Embodiment) This embodiment also has the same functions and effects as the first embodiment.

[0056] (Summary of the embodiment) Next, the technical ideas grasped from the above-described embodiment will be described by using the reference numerals and the like in the embodiment. However, the reference numerals and the like in the following description do not limit the components in the claims to the members and the like specifically shown in the embodiment.

[0057] [1] A device comprising: a holder 2 in which a plurality of electric wires 3 are formed; a plurality of arrangement grooves 21, 22 in which the plurality of electric wires 3 are respectively arranged; and a molded resin 4 formed by molding the plurality of electric wires 3 and the holder 2, the plurality of arrangement grooves 21, 22 being formed in parallel with each other and having a plurality of parallel arrangement grooves 21, 22 opening on the same side as each other; and an embedded portion 25 embedded in the molded resin 4 of the holder 2 being interposed between the parallel arrangement grooves 21, 22. and a buried outer wall 281, 201 formed on the opposite side of the buried intervening wall 273, 293 in the parallel arrangement groove 21, 22 located at an end of the plurality of parallel arrangement grooves 21, 22, wherein the buried intervening wall 273, 293 protrudes toward the opening side of the parallel arrangement groove 21, 22 further than the buried outer wall 281, 201 in at least one cross section perpendicular to the groove formation direction X of the parallel arrangement groove 21, 22.

[0058] [2] The wiring member 1 described in [1], wherein the position of the end portion on the opening side of the embedded intervening walls 273, 293 is located on the opening side of the central positions C1, C2 of the portions of the electric wire 3 arranged in the parallel arrangement grooves 21, 22.

[0059] [3] In the opening direction Z of the parallel arrangement grooves 21, 22, the position of the opening side end of the embedded intervening walls 273, 293 is aligned with the position of the opening side end of the portion of the electric wire 3 arranged in the parallel arrangement grooves 21, 22.

[0060] [4] The wiring member 1 described in [2] or [3], wherein in the opening direction Z of the parallel arrangement grooves 21, 22, the position of the opening side end of the buried outer walls 281, 201 is located on the opposite side to the opening side than the center positions C1, C2.

[0061] [5] The wiring member 1 according to any one of [1] to [4], wherein the width of the embedded intermediate walls 273, 293 is greater than the width of the embedded outer walls 281, 201.

[0062] [6] The wiring member 1 described in any one of [1] to [5], wherein the embedded intermediate walls 273, 293 have protruding portions 272, 292 that protrude toward the opening side and are formed in an elongated shape along the parallel arrangement grooves 21, 22.

[0063] [7] The wiring member 1 described in [6], wherein the protrusions 272, 292 are formed in a portion of the embedded intervening wall 273, 293 excluding both ends in the longitudinal direction of the protrusions 272, 292, and a portion of the molding resin 4 is arranged on each of both sides in the longitudinal direction of the protrusions 272, 292.

[0064] [8] The plurality of parallel arrangement grooves 21, 22 include a plurality of first parallel arrangement grooves 21 that open to a first side Z1 and a plurality of second parallel arrangement grooves 22 that open to a second side Z2 opposite to the first side Z1, the embedded intermediate walls 273, 293 include a first embedded intermediate wall 273 interposed between the first parallel arrangement grooves 21 and a second embedded intermediate wall 293 interposed between the second parallel arrangement grooves 22, and the embedded outer walls 281, 201 include a first embedded intermediate wall 273 interposed between the first parallel arrangement grooves 21 and the second embedded intermediate wall 293 interposed between the second parallel arrangement grooves 22, The wiring member 1 described in any one of [1] to [7] has a first buried outer wall 281 formed on the opposite side to the first buried intervening wall 273, and a second buried outer wall 201 formed on the opposite side to the second buried intervening wall 293 in a second parallel arrangement groove 22 located at an end of the plurality of second parallel arrangement grooves 22, wherein the first buried intervening wall 273 protrudes toward the first side Z1 more than the first buried outer wall 281, and the second buried intervening wall 293 protrudes toward the second side Z2 more than the second buried outer wall 201.

[0065] (Additional Note) Although the embodiment of the present invention has been described above, the invention according to the claims is not limited to the above embodiment. It should be noted that not all of the combinations of features described in the embodiment are essential to the means for solving the problems of the invention. The present invention can be modified appropriately without departing from the spirit of the invention. [Explanation of symbols]

[0066] 1... Wiring member 2... Holder 201...Second buried outer wall 21...First parallel arrangement groove 22...Second parallel arrangement groove 25...Buried part 272...Protruding part 273...First buried intervening wall 281...First buried outer wall 292...Protrusion part 293…Second buried intervening wall 3…Electric wire 4…Mold resin C1…Center position C2…Center position X…Groove formation direction Z…Opening direction Z1…1st side Z2: Second side

Claims

1. A plurality of wires; a holder having a plurality of arrangement grooves in which the plurality of electric wires are respectively arranged; a molding resin formed by molding the electric wires and the holder, The plurality of arrangement grooves include a plurality of parallel arrangement grooves that are formed in parallel to one another and open to the same side as one another, a buried portion buried in the mold resin of the holder includes a buried intermediate wall interposed between the parallel arrangement grooves and a buried outer wall formed on an opposite side to the buried intermediate wall in a parallel arrangement groove located at an end of the plurality of parallel arrangement grooves, In at least one cross section perpendicular to a groove formation direction of the parallel arrangement grooves, the embedded intermediate wall protrudes toward an opening side of the parallel arrangement grooves more than the embedded outer wall. Wiring parts.

2. a position of an end portion of the embedded intervening wall on the opening side is located on the opening side with respect to a center position of a portion of the electric wire that is arranged in the parallel arrangement groove; The wiring member according to claim 1 .

3. In an opening direction of the parallel arrangement groove, a position of an end portion of the embedded intervening wall on the opening side is aligned with a position of an end portion of the electric wire on the opening side of the portion of the electric wire that is arranged in the parallel arrangement groove. The wiring member according to claim 2 .

4. In the opening direction of the parallel arrangement groove, the position of the end portion of the embedded outer wall on the opening side is located on the opposite side to the opening side from the center position. The wiring member according to claim 2 or 3.

5. The width of the embedded intermediate wall is greater than the width of the embedded outer wall; The wiring member according to claim 1 or 2.

6. The embedded intermediate wall has a protruding portion that protrudes toward the opening side and is formed long along the parallel arrangement grooves. The wiring member according to claim 1 or 2.

7. The protruding portion is formed at a portion of the embedded intervening wall excluding both ends in a longitudinal direction of the protruding portion, A portion of the molding resin is disposed on each of both sides in a longitudinal direction of the protruding portion. The wiring member according to claim 6 .

8. The plurality of parallel arranged grooves include a plurality of first parallel arranged grooves that open to a first side and a plurality of second parallel arranged grooves that open to a second side opposite to the first side, the embedded intervening walls include first embedded intervening walls interposed between the first parallel arranged grooves and second embedded intervening walls interposed between the second parallel arranged grooves, the embedded outer wall includes a first embedded outer wall formed on an opposite side to the first embedded intervening wall in a first parallel arrangement groove located at an end of the plurality of first parallel arrangement grooves, and a second embedded outer wall formed on an opposite side to the second embedded intervening wall in a second parallel arrangement groove located at an end of the plurality of second parallel arrangement grooves, the first embedded intermediate wall protrudes toward the first side beyond the first embedded outer wall, The second embedded intermediate wall protrudes toward the second side more than the second embedded outer wall. The wiring member according to claim 1 or 2.

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