JP7420158B2 - Wiring structure - Google Patents

Description

The present invention relates to a wiring structure including a plurality of electric wires.

BACKGROUND ART Conventionally, a power distribution member including a plurality of electric wires has been used to electrically connect connection objects (see, for example, Patent Document 1).

The power distribution member described in Patent Document 1 includes three electric wires (power lines) and connects a three-phase motor to be connected to a terminal block. A terminal is crimped to one end of each of the three electric wires, and this terminal is connected to a terminal block. The other ends of each of the three electric wires are connected to the welded portion of the three-phase motor by welding.

Further, Patent Document 1 describes a second embodiment in which three electric wires are interconnected by a fixing member. This fixing member has a rod shape through which a portion of each of the three electric wires is inserted. The three electric wires are integrated by this fixing member.

Japanese Patent Application Publication No. 2011-259654

An object of the present invention is to provide a wiring structure that can be interposed between two electric wires to ensure an insulation distance .

In order to solve the above-mentioned problems, the present invention provides a plurality of electric wire pairs made up of a pair of electric wires, a first fixing member that fixes the plurality of electric wire pairs together, and at least one of the plurality of electric wire pairs. a second fixing member that fixes two pairs of electric wires together and is provided apart from the first fixing member, and the first fixing member and the second fixing member hold the electric wires. It has a holder and a resin molded part made of molded resin molded so as to cover the pair of electric wires in the portion held by the holder, and the holder is interposed between the electric wires held by the holder. a connecting part that has one or more intervening parts, is provided integrally with the holders of the first fixing member and the second fixing member, and connects the holders of the first fixing member and the second fixing member; Provided is a power distribution member comprising:

Moreover, for the purpose of solving the above-mentioned problem, the present invention provides a plurality of electric wire pairs each consisting of a pair of electric wires, a first fixing member that fixes the plurality of electric wire pairs together, and a first fixing member that fixes the plurality of electric wire pairs together; A method for manufacturing a power distribution member, comprising: fixing the electric wires of at least one pair of electric wires together; and a second fixing member provided apart from the first fixing member, the method comprising: holding the electric wires; , a holder for the first fixing member and the second fixing member each having one or more intervening parts interposed between the electric wires being held; and a holder for the first fixing member and the second fixing member. a preparation step of preparing a holder unit having a connecting portion that is provided integrally with the holder and connects the holders of the first fixing member and the second fixing member; a placement step of placing the electric wires in a mold so as to be interposed between the electric wires; and injecting molten molding resin into the mold to form a resin molded part so as to cover the pair of electric wires in the portion held by the holder. The present invention provides a method of manufacturing a power distribution member, comprising a molding step of forming the first fixing member and the second fixing member.

According to the present invention, it is possible to interpose between two electric wires to ensure an insulation distance .

FIG. 1 is a perspective view showing a power distribution member according to an embodiment of the present invention. FIG. 2 is a plan view of the power distribution member of FIG. 1; FIG. 3 is a perspective view showing multiple pairs of electric wires. (a) is an enlarged view showing a connecting portion and its surrounding area; (b) is a state diagram showing a state in which a part of the electric wire is held in the holder before forming the resin mold part. (c) is a perspective view showing the holder. FIG. 3 is a three-sided view of the holder of the first fixing part. (a) is a sectional view taken along line AA in FIG. 5. (b) is a sectional view taken along the line BB in FIG. 4(a). (a) is a perspective view of the first sub-holder, and (b) is a perspective view of the second sub-holder. FIG. 3 is a plan view of the holder unit. (a) is a plan view showing a part of the holder and the electric wire arranged on the lower mold. (b) is a cross-sectional view showing a part of the holder and the electric wire arranged between the upper mold and the lower mold, taken along the line CC in (a). (c) is a cross-sectional view taken along the line DD in (a), showing a part of the holder and the electric wire arranged between the upper mold and the lower mold. (a), (b) is a top view showing a modified example of the holder unit. FIG. 3 is a diagram showing a power distribution member according to a modified example of the present invention, in which (a) is a side view and (b) is a cross-sectional view taken along line GG. It is an explanatory view explaining an example of composition of a slide mold in the case of mold-forming a connection part.

[Embodiment]
Embodiments of the present invention will be described below with reference to the accompanying drawings.

(Overall configuration of power distribution components)
FIG. 1 is a perspective view showing a power distribution member according to an embodiment of the present invention, and FIG. 2 is a plan view thereof. This power distribution member 1 includes a plurality of electric wire pairs 11 to 13 consisting of a pair of electric wires 111, 112, 121, 122, 131, and 132, and a first fixing member 2 that fixes the plurality of electric wire pairs 11 to 13 together. , a second fixing member 5 which fixes the wires of at least one of the plurality of wire pairs 11 to 13 together and is provided apart from the first fixing member 2. In this embodiment, the electric wires 111, 112, 121, 122, 131, and 132 are enameled wires having a circular cross section with an enamel coating formed around the conductive wires.

FIG. 3 is a perspective view showing pairs of electric wires 111 and 112, electric wires 121 and 122, and electric wires 131 and 132, respectively. The electric wires 111 and 112 constitute a first electric wire pair 11. The electric wires 121, 121 constitute a second electric wire pair 12. Further, the electric wires 131 and 132 constitute a third electric wire pair 13.

The electric wires 111, 112, 121, 122, 131, and 132 each have a connecting portion at both ends to be connected to a connection target. One end portions 111a and 112a of the two electric wires 111 and 112 of the first electric wire pair 11 are connected to, for example, a U-phase winding of a three-phase motor. One end portions 121a and 122a of the two wires 121 and 122 of the second wire pair 12 are connected to, for example, a V-phase winding of a three-phase motor. One end portions 131a and 132a of the two electric wires 131 and 132 of the third electric wire pair 13 are connected to, for example, a W-phase winding of a three-phase motor. Further, the other end portions 111b and 112b of the two electric wires 111 and 112 of the first electric wire pair 11, the other end portions 121b and 122b of the two electric wires 121 and 122 of the second electric wire pair 12, and the Connection terminals fixed to a terminal block, for example, are crimped to the other ends 131b, 132b of the two electric wires 131, 132 of the three electric wire pairs 13, respectively.

(Description of first fixing member 2)
The electric wires 111, 112, 121, 122, 131, 132 are inserted through the first fixing member 2. In this embodiment, the portions of the electric wires 111, 112, 121, 122, 131, and 132 that pass through the first fixing member 2 are parallel to each other. The first fixing member 2 has a substantially rectangular parallelepiped shape as shown in FIG. 1, and has a rectangular shape when viewed from the axial direction (extending direction) of the electric wires 111, 112, 121, 122, 131, and 132.

Assuming that the long side direction of this rectangular shape is the X direction and the short side direction is the Y direction, the two electric wires 111 and 112 of the first electric wire pair 11, the two electric wires 121 and 122 of the second electric wire pair 12, and The two electric wires 131 and 132 of the third electric wire pair 13 are arranged in the Y direction. A part of one electric wire 111 of the first electric wire pair 11, a part of one electric wire 121 of the second electric wire pair 12, and a part of one electric wire 131 of the third electric wire pair 13 are arranged in the X direction. . Further, a part of the other electric wire 112 of the first electric wire pair 11, a part of the other electric wire 122 of the second electric wire pair 12, and a part of the other electric wire 132 of the third electric wire pair 13 are also arranged in the X direction. I'm here. That is, a portion of the first wire pair 11, a portion of the second wire pair 12, and a portion of the third wire pair 13 are comprised of two wires (wires 111 and 112, wires 121 and 122, and wire 131). and electric wires 132) (in this embodiment, perpendicular direction). In this case, the axial direction of the electric wires 111, 112, 121, 122, 131, and 132 is the Z direction orthogonal to the X direction and the Y direction. In this embodiment, the first fixing member 2 connects a part of the first electric wire pair 11, a part of the second electric wire pair 12, and a part of the third electric wire pair 13.

FIG. 4(a) is an enlarged view showing the first fixing member 2 and its surrounding area. The first fixing member 2 is for fixing the plurality of wire pairs 11 to 13 together, and has the other ends 111b, 112b, 121b, 122b, 131b, 132b of the wires 111, 112, 121, 122, 131, 132. (that is, near the end on the terminal block side). In other words, the first fixing member 2 The length of the electric wires 111, 112, 121, 122, 131, 132 from the end portions 111a, 112a, 121a, 122a, 131a, 132a to the winding side is longer.

The first fixing member 2 includes a holder 3 that holds an electric wire, and a resin molded part 4 made of molded resin that is molded so as to collectively cover the electric wire pairs 11 to 13 held in the holder 3. are doing.

FIG. 4(b) is a state diagram showing a state in which some of the electric wires 111, 112, 121, 122, 131, 132 are held by the holder 3 before the resin mold part 4 is molded. FIG. 4(c) is a perspective view showing the holder 3. FIG. FIG. 5 is a three-sided view of the holder 3. 6(a) is a cross-sectional view taken along line AA in FIG. 5, and FIG. 6(b) is a cross-sectional view taken along line BB in FIG. 4(a). In FIG. 5, the outline of the portion where the resin mold part 4 is formed is shown by a virtual line (two-dot chain line).

The holder 3 is a resin member made of resin, for example, formed by injection molding. The holder 3 integrates a pair of plate parts 31 and 32 arranged in the Z direction and a plurality of (three in this embodiment) intervening parts 33 to 35 provided between the pair of plate parts 31 and 32. has. The plurality of intervening parts 33 to 35 are rod-shaped and extend in the Z direction. The pair of plate parts 31 and 32 are provided at positions sandwiching a plurality of intervening parts 33 to 35 along the axial direction of the electric wires 111, 112, 121, 122, 131, 132 in the portion covered by the resin mold part 4. There is. Moreover, the pair of plate parts 31 and 32 each consist of one plate-shaped body formed along the direction (X direction) intersecting the axial direction of the electric wires 111, 112, 121, 122, 131, and 132.

In the following explanation, among the pair of plate parts 31, 32, the plate part 31 on the one end 111a, 112a, 121a, 122a, 131a, 132a side of the electric wires 111, 112, 121, 122, 131, 132 is referred to as the first plate. The plate portion 32 on the other end portions 111b, 112b, 121b, 122b, 131b, and 132b is referred to as a second plate portion 32. Further, among the plurality of interposed parts 33 to 35, the interposed part 33 corresponding to the first electric wire pair 11 is referred to as the first interposed part 33, and the interposed part 34 corresponding to the second electric wire pair 12 is referred to as the second interposed part 34, The interposed part 35 corresponding to the third electric wire pair 13 is referred to as the third interposed part 35.

The first intervening portion 33 is interposed between the two electric wires 111 and 112 of the first electric wire pair 11. The second intervening portion 34 is interposed between the two electric wires 121 and 122 of the second electric wire pair 12. The third intervening portion 35 is interposed between the two electric wires 131 and 132 of the third electric wire pair 13. The first to third intervening parts 33 to 35 are entirely covered by the resin mold part 4 in the longitudinal direction (Z direction). That is, the first to third intervening parts 33 to 35 are provided over the entire portion of the first fixing member 2 that is covered with the resin mold part 4. The first plate part 31 and the second plate part 32 are located outside the resin mold part 4.

Surfaces 33a and 33b of the first intervening portion 33 facing the electric wires 111 and 112, surfaces 34a and 34b of the second intervening portion 34 facing the electric wires 121 and 122, and surfaces 34a and 34b of the third intervening portion 35 facing the electric wires 131 and 132 The surfaces 35a and 35b are curved surfaces having curvatures corresponding to the outer diameters of the electric wires 111, 112, 121, 122, 131, and 132, respectively. In other words, the first to third intervening portions 33 to 35 have bottom surfaces (opposing surfaces 33a, 33b, 34a, 34b) each having an arcuate cross section that accommodates a portion of the electric wires 111, 112, 121, 122, 131, 132. , 35a, 35b) are formed along the Z direction.

If the outer diameter of the electric wires 111, 112, 121, 122, 131, 132 is 2R, and the radius of curvature of the opposing surfaces 33a, 33b, 34a, 34b, 35a, 35b of the first to third intervening parts 33 to 35 is r. , these ratios r/R desirably satisfy 0.9≦r/R≦1.1.

Further, the holder 3 is provided between the first to third intervening parts 33 to 35 in the arrangement direction (Y Through holes 301 and 302 are formed in the direction (direction). The through hole 301 is formed between the first intervening part 33 and the second intervening part 34 , and the through hole 302 is formed between the second intervening part 34 and the third intervening part 35 . In the present embodiment, the through holes 301 and 302 are elongated holes formed between the first plate part 31 and the second plate part 32, but are not limited thereto. One or more round holes may be formed as through holes between the intervening part 34 and between the second intervening part 34 and the third intervening part 35.

The through holes 301 and 302 are filled with mold resin of the resin mold part 4. As a result, a portion of the resin molded portion 4 on one side in the Y direction (the peripheral portion of the electric wires 111, 121, 131 indicated by reference numeral 41 in FIG. 5(b), the peripheral portions of the electric wires 112, 122, 132 indicated by reference numeral 42) are connected by portions 43, 44 filled in the through holes 301, 302. Further, in the present embodiment, the resin is also removed by the portion 45 of the first intervening portion 33 on the opposite side to the second intervening portion 34 and the portion 46 of the third intervening portion 35 on the opposite side from the second intervening portion 34. A portion 41 on one side in the Y direction and a portion 42 on the other side in the Y direction in the mold portion 4 are connected.

Six recesses 310 are formed in the first plate part 31 of the holder 3 to hold the electric wires 111, 112, 121, 122, 131, 132 at one end in the Z direction when molding the resin mold part 4. . Further, six recesses 320 are formed in the second plate part 32 of the holder 3 to hold the electric wires 111, 112, 121, 122, 131, 132 at the other end in the Z direction when molding the resin mold part 4. has been done. The inner peripheral surfaces of the recesses 310 and 320 are semicircular when viewed from the axial direction (Z direction), and when the electric wires 111, 112, 121, 122, 131, and 132 are held in the holder 3, Approximately half of the electric wires 111, 112, 121, 122, 131, 132 in the circumferential direction are accommodated in the recesses 310, 320.

Connecting portions 8 (81 to 83) are connected to the surface of the second plate portion 32 opposite to the intervening portions 33 to 35. Details of the connecting portion 8 will be described later.

(Description of second fixing member 5)
The second fixing member 5 includes a holder 6 that holds an electric wire, and a resin molded portion 7 made of molded resin and molded to cover the portion of the electric wire pair held by the holder 6. When the electric wires 111, 112, 121, 122, 131, 132 are relatively long, the second fixing member 5 plays a role of increasing the number of fixing points and suppressing the influence of vibration (load due to vibration).

In the present embodiment, the second fixing member 5 includes a first sub-fixing member 51 that collectively fixes the electric wires 111, 112, 121, and 122 constituting the first electric wire pair 11 and the second electric wire pair 12; It has a second sub-fixing member 52 that collectively fixes the electric wires 131 and 132 constituting the three electric wire pairs 13.

The first sub-fixing member 51 is made of molded resin molded to cover the first sub-holder 61 that holds the electric wires 111, 112, 121, 122 and the electric wire pairs 11, 12 held by the first sub-holder 61. The first resin molded portion 71 has a first resin molded portion 71.

FIG. 7A is a perspective view of the first sub-holder 61. The first sub-holder 61 basically has the same configuration as the holder 3 of the first fixing member 2 shown in FIG. 4(c) etc., but it holds four electric wires. The first sub-holder 61 includes a pair of plate portions 611, 612 facing each other in the longitudinal direction (X direction) of the electric wires 111, 112, 121, 122, and a rod-shaped two plate portions provided between the pair of plate portions 611, 612. It has two intervening parts 613 and 614 integrally.

Recesses 6110 and 6120 are formed in the plate portions 611 and 612 to accommodate and hold the electric wires 111, 112, 121, and 122. The intervening part 613 is arranged to be interposed between the electric wires 111 and 112, and the intervening part 614 is arranged to be interposed between the electric wires 121 and 131. Surfaces 613a and 614a of the interposed portions 613 and 614 facing the electric wires 111 and 121 are formed into curved surfaces having curvatures corresponding to the outer diameters of the electric wires 111 and 121, respectively. Similarly, the surfaces of the interposed portions 613 and 614 that face the electric wires 112 and 122 are also formed into curved surfaces having curvatures corresponding to the outer diameters of the electric wires 112 and 122. Further, a through hole 6101 filled with mold resin is formed between the intervening portions 613 and 614. A first connecting portion 81 and a second connecting portion 82, which are the connecting portions 8, are connected to the surface of the plate portion 611 opposite to the intervening portions 613, 614.

The second sub-fixing member 52 includes a second sub-holder 61 that holds the electric wires 131 and 132, and a second resin molded portion made of molded resin so as to cover the portion of the electric wire pair 13 held by the second sub-holder 62. 72.

FIG. 7(b) is a perspective view of the second sub-holder 62. The second sub-holder 62 is the same as the first sub-holder 61 in FIG. 7(a) except that it holds two electric wires. The second sub-holder 62 includes a pair of plate parts 621 and 622 facing each other in the longitudinal direction (X direction) of the electric wires 131 and 132, and one rod-shaped intervening part 623 provided between the pair of plate parts 621 and 622. It has an integrated structure.

Recesses 6210 and 6220 for accommodating and holding the electric wires 131 and 132 are formed in the plate portions 621 and 622. The intervening portion 623 is arranged to be interposed between the electric wires 131 and 132. A surface 623a of the intervening portion 623 facing the electric wire 131 is formed into a curved surface having a curvature corresponding to the outer diameter of the electric wire 131. Similarly, the surface of the intervening portion 623 facing the electric wire 132 is also formed into a curved surface having a curvature corresponding to the outer diameter of the electric wire 132. A third connecting portion 83, which is the connecting portion 8, is connected to the surface of the plate portion 621 opposite to the intervening portion 623.

(Description of connecting part 8)
The power distribution member 1 according to the present embodiment is provided integrally with the holder 3 of the first fixing member 2 and the holder 6 (sub-holders 61, 62) of the second fixing member 5, and the first fixing member 2 and the second fixing member A connecting portion 8 is provided for connecting the 5 holders 3 and 6 to each other. The connecting part 8 has the role of connecting the holders 3 and 6 to each other to reduce the number of parts as an integral part, and also to facilitate manufacturing by making it easier to install the holders 3 and 6 in the mold. This is a member that acts as an intervening member to ensure an insulating distance.

FIG. 8 is a plan view of a holder unit 9 in which the holder 3 and sub-holders 61 and 62 are connected by a connecting portion 8. The connecting portion 8 includes a first connecting portion 81 corresponding to the first electric wire pair 11, a second connecting portion 82 corresponding to the second electric wire pair 12, and a third connecting portion 83 corresponding to the third electric wire pair 13. have. The first connecting portion 81 is formed along the electric wires 111 and 112 and is arranged to be interposed between the electric wires 111 and 112. The second connecting portion 82 is formed along the electric wires 121 and 122, and is arranged to be interposed between the electric wires 121 and 122. The third connecting portion 83 is formed along the electric wires 131 and 132, and is arranged to be interposed between the electric wires 131 and 132. Each of the connecting portions 81 to 83 is formed in a band shape, and a cross section perpendicular to the longitudinal direction thereof is formed in a rectangular shape.

The holder 3 and the first sub-holder 61 are connected to each other via a first connecting part 81 and a second connecting part 82. The holder 3 and the second sub-holder 61 are connected to each other via a third connecting portion 83. The connecting parts 81 to 83 are formed, for example, by injection molding together with the holder 3 and the sub-holders 61 and 62.

The wider the connecting parts 81 to 83, the smaller the insulation distance between the wires 111 and 112, the wires 121 and 122, or the wires 131 and 132 constituting the wire pairs 11 to 13 (the spatial distance and the distance between the holders 3 and sub-holders 61 and 62). Creepage distance along the surface can be increased. However, when the connecting parts 81 to 83 protrude laterally from the electric wires 111, 112, 121, 122, 131, 132, it becomes difficult to install the power distribution member 1 in a narrow space, and also fixes the power distribution member 1 to surrounding members. This makes it difficult to secure clips, etc. Furthermore, in order to position the power distribution member 1, it is possible to provide positioning protrusions such as pins on the member to be fixed to which the power distribution member 1 is fixed. , 132, it becomes difficult to position the power distribution member 1 using such positioning projections. Therefore, the width of the connecting portions 81 to 83 is set to be less than or equal to the outer diameter of the electric wires 111, 112, 121, 122, 131, 132, and the connecting portions 81 to 83 are It is desirable not to protrude.

Note that if the width of the connecting portions 81 to 83 is too small, the effect of increasing the insulation distance may not be sufficiently obtained. , 132 is desirably 50% or more of the outer diameter. Further, in order to ensure the creepage distance, it is also possible to form only the portions of the connecting portions 81 to 83 near the holders 3 and 6 wide, and the other portions to be formed relatively narrow.

Further, in the present embodiment, the wire pairs 11 to 13 are each formed with a bent portion 15, and the first fixing member 2 and the second fixing member 5 are arranged apart from each other via the bent portion 15. has been done. The first wire pair 11 is bent at about 90 degrees at the first bending portion 15a, the second wire pair 12 is bent at about 90 degrees at the second bending portion 15b, and the third wire pair 13 is bent at about 90 degrees at the second bending portion 15b. , is bent by about 90 degrees at the third bending portion 15c.

Therefore, the longitudinal direction of the electric wires 111, 112, 121, 122, 131, 132 at the position where the first fixing member 2 is provided, and the electric wires 111, 112, 121 at the position where the first sub-fixing member 51 is provided. , 122 are substantially perpendicular to each other. Similarly, the longitudinal direction of the electric wires 111, 112, 121, 122, 131, 132 at the position where the first fixing member 2 is provided and the electric wires 131, 132 at the position where the second sub-fixing member 52 is provided. The longitudinal direction is substantially orthogonal.

If the longitudinal direction of the wire is in the same direction at the position where the first fixing member 2 and the second fixing member 5 are provided, the first fixing member 2 and the second fixing member 5 will move together when an external force is applied. There is a risk that misalignment may occur. On the other hand, in the present embodiment, the first fixing member 2 and the second fixing member 5 are spaced apart from each other via the bent portion 15, so the first fixing member 2 and the second fixing member 5 The longitudinal directions of the electric wires are in different directions at the positions where they are provided, and it becomes possible to suppress positional displacement between the first fixing member 2 and the second fixing member 5 when an external force is applied. In order to more reliably suppress misalignment between the first fixing member 2 and the second fixing member 5, the longitudinal direction of the electric wire at the position where the first fixing member 2 is provided and the longitudinal direction of the electric wire at the position where the second fixing member 5 is provided. It is more desirable that the angle formed by the bending portion 15 (that is, the bending angle of the bending portion 15) is 30 degrees or more.

In order to suppress the positional shift between the first fixing member 2 and the second fixing member 5, the connecting portion 8 may be formed so as to shortcut the bent portion 15, but as described above, the connecting portion 8 is It is desirable that the connecting portion 8 be formed along the bent portion 15 because it also plays the role of interposing between the pairs 11 to 13 and increasing the insulation distance. In the present embodiment, the first connecting portion 81 has a first circular arc portion 81a that is bent in an arc along the first bent portion 15a, and the second connecting portion 82 is bent in an arc along the second bent portion 15b. The third connecting portion 83 has a third circular arc portion 83a bent in an arc along the third bent portion 15c.

The power distribution member 1 is used, for example, as an electric path between a drive motor and an inverter in a vehicle. Since the power distribution member 1 is disposed near the motor which becomes hot, it is desirable to use a resin having sufficient heat resistance as the resin used for the holder unit 9. Further, as the resin used for the holder unit 9, it is desirable to use a resin having sufficient mechanical strength to withstand vibrations. As such a resin, for example, PPS (polyphenylene sulfide) containing glass fiber can be used. As the resin used for the resin mold parts 4 and 7, it is preferable to use the same resin as that for the holder unit 9.

(Method for manufacturing power distribution member 1)
The method for manufacturing the power distribution member 1 includes a preparation step of preparing the holder unit 9, a placement step of arranging the holder unit 9 and each wire pair 11 to 13 in a mold (a mold 55 to be described later), and The molding process includes a molding step of injecting molten molding resin to mold the resin molded parts 4, 71, and 72.

In the preparation step, the holder unit 9 is prepared. Here, preparing refers to securing the holder unit 9 used for manufacturing the power distribution member 1, and includes various actions for securing the holder unit 9, such as manufacturing the holder unit 9 by injection molding, for example. It will be done.

FIG. 9(a) shows a part of the holder 3 and electric wires 111, 112, 121, 122, 131, 132 placed in the lower mold 57 in a mold 55 consisting of an upper mold 56 and a lower mold 57. 56 is a plan view with illustration of 56 omitted. FIG. FIG. 9(b) shows a portion of the holder 3 and the electric wires 111, 112, 121, 122, 131, 132 placed between the upper mold 56 and the lower mold 57 along the CC line of FIG. 9(a). It is a sectional view shown in a section. FIG. 9(c) shows a portion of the holder 3 and the electric wires 111, 112, 121, 122, 131, 132 placed between the upper mold 56 and the lower mold 57 along the line DD in FIG. 9(a). It is a sectional view shown in a section. Note that the cross section taken along line EE in FIG. 9(a) is the same as the cross section taken along line DD shown in FIG. 9(c), and the cross section taken along line FF in FIG. 9(a) is shown in FIG. 9(b). It is the same as the cross section taken along the line CC.

In the arrangement process, the holder unit 9 is attached to the first fixing member 2 by the electric wires (the electric wire 111 and the electric wire 112, the electric wire 121 and the electric wire 122, and the electric wire 131 and the electric wire 133) in which the first to third intervening parts 33 to 35 form pairs. The intervening parts 613 and 614 are interposed between the pair of electric wires (the electric wire 111 and the electric wire 112, and the electric wire 121 and the electric wire 122) in the first sub-fixing member 51, and the second sub-fixing member 52, the intervening portion 623 is placed in a mold (a mold 55 to be described later) so as to be interposed between a pair of electric wires (wires 131 and 132). Although the specific procedure at that time is not particularly limited, for example, the electric wires 112, 122, 132 are placed on the lower mold 57 so that some of the electric wires 112, 122, 132 are accommodated in the grooves 57a, 57b, 57c of the lower mold 57, This can be done by arranging the wires 122, 132, the holder unit 9 thereon, and further arranging the electric wires 111, 121, 131 on the holder unit 9.

FIGS. 9(a) to 9(c) show the shape of the mold 55 for molding the resin molded portion 4 (first fixing member 2). The shapes of the molds 55 for the portion forming the first resin molded portion 71 of the first sub-fixing member 51 and the portion forming the second resin molded portion 72 of the second sub-fixing member 52 are shown in FIG. 9(a). Since it is substantially the same as ~(c), the explanation will be omitted here.

As shown in FIGS. 9(a) to 9(c), the upper mold 56 is formed with grooves 56a, 56b, and 56c in which parts of the electric wires 111, 121, and 131 are accommodated, and the upper mold 56 is connected to the lower mold. 57, the grooves 56a, 56b, 56c of the upper mold 56 and the grooves 57a, 57b, 57c of the lower mold 57 face each other with the first to third wire pairs 11 to 13 and the holder 3 in between. .

The lower mold 57 has a main body 570 and pins 571, 572, 573 that press the electric wires 112, 122, 132 against the first to third interposed parts 33 to 35 of the holder 3, respectively. The upper mold 56 has a main body 560 and pins 561, 562, 563 that press the electric wires 111, 121, 131 against the first to third intervening parts 33 to 35 of the holder 3, respectively. A cavity 58 is formed between the main body 570 of the lower mold 57 and the main body 560 of the upper mold 56, into which molten mold resin is injected during the molding process.

Note that the pins 571 to 573 of the lower mold 57 and the pins 561 to 563 of the upper mold 56 may be omitted. In addition, these pins 571 to 573 and pins 561 to 563 are movable, and the pins 571 to 573 are attached to the main body 570 of the lower mold 57 after the placement process is completed, before the molding process, or during the molding process. The pins 561 to 563 may be configured to be housed in the main body 560 of the upper mold 56, respectively.

In the molding process, molten mold resin is injected into the mold 55, and the resin mold part 4 is formed so as to cover the electric wires 111, 112, 121, 122, 131, 132 held by the holder 3 and the sub-holders 61, 62. , 71, 72 to form the first fixing member 2 and the second fixing member 5 (the first sub-fixing member 51 and the second sub-fixing member 52). In the example of FIG. 9C, the mold resin melted by heating is injected into the cavity 58 of the mold 55 from the injection hole 570a provided in the main body 570 of the lower mold 57. At this time, the through holes 301 and 302 of the holder 3 are filled with mold resin. This mold resin covers the conductive part 10 in the cavity 58 and solidifies to become the resin mold part 4. Thereby, the first fixing member 2 is formed. The first and second plate parts 31 and 32 of the holder 3 function as side walls that prevent the mold resin injected into the cavity 58 from leaking. The first sub-fixing member 51 and the second sub-fixing member 52 are formed in the same manner as the first fixing member 2.

After solidifying the mold resin to form the resin mold parts 4, 71, 72, the upper mold 56 is removed from the lower mold 57, and the first fixing member 2 and second fixing member 5 (first fixing member 5) formed from the lower mold 57 are removed. The sub-fixing member 51 and the second sub-fixing member 52) are taken out together with the conductive part 10. Through the above steps, the power distribution member 1 is obtained.

(Actions and effects of embodiments)
According to the embodiment described above, the following actions and effects can be obtained.

(1) As explained with reference to FIG. 12, there is no need to provide a sliding movement space between the plurality of wire pairs, so the first fixing method connects the first to third wire pairs 11 to 13 together. While forming the member 2 and the second fixing member 5 by molding, it is possible to reduce the size by narrowing the intervals between the first to third wire pairs 11 to 13.

(2) In the power distribution member 1 in which the electric wires 111, 112, 121, 122, 131, 132 are relatively long, in order to suppress the influence of vibration, the electric wires 111, 112, 132, There is a request to fix 112, 121, 122, 131, and 132. In order to achieve both these requirements and the miniaturization mentioned in (1) above, it is necessary to provide holders 3 and 6 at each fixing location (each fixing member 2 and 5), but this increases the number of parts. Moreover, since it is necessary to arrange a plurality of holders 3 and 6 in the mold 55 during manufacturing, it takes time and effort to manufacture. In the power distribution member 1 according to the present embodiment, the holders 3 and 6 of the first fixing member 2 and the second fixing member 5 are connected to each other by the connecting portion 8, so that the wire pairs 11 to 13 are fixed at multiple positions. The number of parts can be reduced even when Further, by connecting the holders 3 and 6 to form the holder unit 9, the holders 3 and 6 can be easily placed in the mold 55, and manufacturing is facilitated.

(3) By arranging the connecting portion 8 between the wire pairs 11 to 13, the insulation distance between the pairs can be increased.

(4) By arranging the first fixing member 2 and the second fixing member 5 apart from each other via the bent portion 15, it is possible to suppress misalignment between the first fixing member 2 and the second fixing member 5. can. Therefore, even when the mold resin is reduced in order to achieve miniaturization and weight reduction, it is possible to suppress movement of the first fixing member 2 and the second fixing member 5 along the longitudinal direction of the electric wire due to vibration, This also contributes to reducing the size and weight of the power distribution member 1 as a whole.

(5) By making the width of the connecting portion 8 less than or equal to the outer diameter of the electric wires 111, 112, 121, 122, 131, 132, the connecting portions 81 to 83 can be Therefore, the power distribution member 1 can be easily installed in a narrow space. Further, it becomes easier to fix the clips and the like that fix the power distribution member 1 to surrounding members, and it becomes possible to easily position the power distribution member 1 using positioning protrusions such as pins.

(6) Since the intervening portions 33 to 35, 613, 614, and 623 are provided over the entire portion covered by the resin molded portions 4, 71, and 72, between the electric wires 111 and 112 in the first electric wire pair 11, It is possible to suppress the formation of spaces in which the molding resin is not filled between the electric wires 121 and 122 in the second electric wire pair 12 and between the electric wires 131 and 132 in the third electric wire pair 13.

(7) The surfaces facing the electric wires 111, 112, 121, 122, 131, 132 in the intervening parts 33 to 35, 613, 614, 623 have the outer diameter of the electric wires 111, 112, 121, 122, 131, 132, respectively. Since the curved surfaces have corresponding curvatures, it is possible to more reliably suppress the occurrence of spaces that are not filled with mold resin, and also to prevent the electric wires 111, 112, 121, 122, 131, 132 from being misaligned with respect to the holders 3, 6 during the molding process. It can be suppressed.

(8) Since the through holes 301 and 302 formed in the holder 3 and the through hole 6101 formed in the first sub-holder 61 are filled with the mold resin of the resin mold parts 4 and 71, the resin mold parts 4 and 71 Separation from the holder 3 and the first sub-holder 61 is suppressed, and the strength of the first fixing member 2 and the first sub-fixing member 51 is improved.

(Modified example)
In the above embodiment, the connecting parts 81 to 83 are individually provided to correspond to each of the electric wire pairs 11 to 13, but some or all of the connecting parts 81 to 83 may be connected and integrated. good. For example, like the holder unit 9a shown in FIG. 10(a), it may have a plate-shaped fourth connection part 84 that integrates the first connection part 81 and the second connection part 82. Further, as in the holder unit 9b shown in FIG. 10b, a plate-shaped fifth connecting part 85 is formed by integrating the ends of the third connecting part 83 and the fourth connecting part 84 on the holder 3 side, and The connecting portion may be configured to branch into a third connecting portion 83 and a fourth connecting portion 84 at the end opposite to the holder 3 .

Further, in the above embodiment, a case has been described in which two second fixing members 5 are connected in parallel to the first fixing member 2, but the number of second fixing members 5 may be one, or three. There may be more than one. Furthermore, two or more second fixing members 5 may be connected in series to the first fixing member 2. In this case, it is preferable to use a holder unit 9 in which holders 6 of the second fixing members 5 connected in series are connected by a connecting portion 8.

Further, in the above embodiment, a case is described in which one holder 3, 6 is used for one fixing member 2, 5, but two or more holders 3, 6 may be used for one fixing member 2, 5. good. For example, as shown in FIGS. 11(a) and 11(b), when three electric wires 141 to 143 are arranged in parallel, the holder 6 shown in FIG. 7(b) is placed between the electric wires 141 and 142. The second sub-holder 62 is arranged, and the second sub-holder 62 is arranged between the electric wires 142 and 143, and the resin mold part 7 is provided so as to collectively cover these two second sub-holders 62 and the electric wires 141 to 143. The second fixing member 5 may be formed by Although FIG. 11 shows the second fixing member 5, the same applies to the first fixing member 2.

(Summary of embodiments)
Next, technical ideas understood from the embodiments described above will be described using reference numerals and the like in the embodiments. However, each reference numeral in the following description does not limit the constituent elements in the claims to those specifically shown in the embodiments.

[1] A plurality of electric wire pairs (11 to 13) consisting of a pair of electric wires (111, 112, 121, 122, 131, 132) and a first fixing that fixes the plurality of electric wire pairs (11 to 13) together. The member (2) and the electric wires (111, 112, 121, 122, 131, 132) of at least one electric wire pair (11-13) among the plurality of electric wire pairs (11-13) are fixed together, and the a first fixing member (2) and a second fixing member (5) provided apart from each other; the first fixing member (2) and the second fixing member (5) 112, 121, 122, 131, 132), and a mold formed to cover the electric wire pairs (11 to 13) in the portion held by the holder (3, 6). The holder (3, 6) has a resin molded part (4, 7) made of resin, and the holder (3, 6) is interposed between the electric wires (111, 112, 121, 122, 131, 132), respectively. one or more intervening parts (33 to 35, 613, 614, 623) that are integrated with the holders (3, 6) of the first fixing member (2) and the second fixing member (5). A power distribution member (1) comprising a connecting portion (8) that is provided and connects the holders (3, 6) of the first fixing member (2) and the second fixing member (5).

[2] The power distribution member (1) according to [1], wherein the connecting portion (8) is arranged between the pair of electric wires (111, 112, 121, 122, 131, 132).

[3] A bent portion (15) is formed in the electric wire pair (11 to 13), and the first fixing member (2) and the second fixing member (5) are connected to the bent portion (5). ) The power distribution member (1) according to [1] or [2], which is spaced apart from each other via the power distribution member (1).

[4] The power distribution member (1) according to [3], wherein the connecting portion (8) is formed along the bent portion (15).

[5] The width of the connecting portion (8) is equal to or less than the outer diameter of the electric wire (111, 112, 121, 122, 131, 132) according to any one of [1] to [4]. Power distribution member (1).

[6] The plurality of intervening parts (33 to 35) are provided over the entire part covered by the resin mold part (4), according to any one of [1] to [5]. Wiring parts (1).

[7] The holder (3, 6) includes the plurality of intervening parts along the axial direction of the electric wire (111, 112, 121, 122, 131, 132) in the part covered by the resin mold part (4). The wiring component (1) according to [6], which has a pair of plate parts (31, 31) sandwiching the parts (33 to 35).

[8] A surface (33a, 33b, 34a, 34b, 35a, 35b) facing the electric wire (111, 112, 121, 122, 131, 132) in the interposed portion (33-35, 613, 614, 623), 613a, 614a, 623a) is a curved surface having a curvature corresponding to the outer diameter of the electric wire (111, 112, 121, 122, 131, 132), according to any one of [1] to [7]. Wiring parts (1).

[9] The holder (3, 6) is provided with through holes (301, 302, 6101) in the direction in which the paired electric wires (111, 112, 121, 122, 131, 132) are lined up. 33 to 35, 613, 614), and the through hole (301, 302, 6101) is filled with the mold resin of the resin molded part (4, 7). The wiring component (1) according to any one of [8].

[10] A plurality of electric wire pairs (11 to 13) consisting of a pair of electric wires (111, 112, 121, 122, 131, 132) and a first fixing that fixes the plurality of electric wire pairs (11 to 13) together. (2) and the electric wires (111, 112, 121, 122, 131, 132) of at least one electric wire pair (11 to 13) among the plurality of electric wire pairs are fixed together, and the first fixing member (2) and a second fixing member (5) provided at a distance, the method of manufacturing a power distribution member (1) comprising: and having one or more intervening parts (33 to 35, 613, 614, 623) interposed between the electric wires (111, 112, 121, 122, 131, 132) held, respectively. 1 fixing member (2) and the holder (3, 6) of the second fixing member (3); and the holder (3, 6) of the first fixing member (2) and the second fixing member (5). Prepare a holder unit (9) having a connecting part (8) that is integrally provided and connects the holders (3, 6) of the first fixing member (2) and the second fixing member (5). and a preparation step in which the holder unit (9) is arranged so that the plurality of intervening parts (33 to 35, 613, 614, 623) are interposed between the electric wires (111, 112, 121, 122, 131, 132). a placement step of placing the electric wire pairs (11 to 13) in the mold (55), and injecting molten molding resin into the mold (55) to remove the wire pairs (11 to 13) in the portions held by the holders (3, 6); A method for manufacturing a power distribution member (1), comprising a molding step of forming a resin mold part (4, 7) so as to cover the first fixing member (2) and the second fixing member (5). .

[11] The holder (3, 6) has a plurality of through holes (301, 302, 6101) in the direction in which the paired electric wires (111, 112, 121, 122, 131, 132) are lined up. 33 to 35,613,614), and in the molding step, the through hole (301, 302, 6101) is filled with the mold resin. Method.

Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. Furthermore, it should be noted that not all combinations of features described in the embodiments are essential for solving the problems of the invention.

Moreover, the present invention can be implemented with appropriate modifications within a range that does not depart from the spirit thereof. For example, in the above embodiment, a case has been described in which the electric wires 111, 112, 121, 122, 131, 132 are made of enamelled wire, but the electric wires 111, 112, 121, 122, 131, 132 are not limited to this. An insulated wire may be used, in which a conducting wire made of a highly conductive metal such as copper is covered with an insulator. In this case, the insulator is removed at both ends of each of the electric wires 111, 112, 121, 122, 131, and 132, and the conducting wires are exposed.

1... Power distribution member 10... Conductive parts 11 to 13... First to third electric wire pairs 111, 112, 121, 122, 131, 132... Electric wires 2... First fixing part 3... Holders 33 to 35... Intervening parts 33a, 33b , 34a, 34b, 35a, 35b...Opposing surface 301, 302...Through hole 4...Resin mold part 5...Second fixing part 6...Holder 613, 614, 623...Intervening part 613a, 614a, 623a...Opposing surface 6101...Penetration Hole 7...Resin mold part 8...Connecting part 15...Bending part 55...Mold

Claims (2)

two electric wires and
a first holder having a first interposed part formed between the two electric wires;
a second holder provided apart from the first holder and having a second intervening part formed between the two electric wires;
The first holder and the second holder are connected to each other, and the wire is disposed between the two electric wires and is formed along the two electric wires extending from the first holder to the second holder. A connecting part that is
has
The width of the connecting part is larger than the width of the first intervening part and the second intervening part,
The two electric wires in the first holder are covered with a resin molded part made of molded resin,
The first holder is disposed between the first intervening part and the connecting part, and includes a plate-shaped body formed along a direction intersecting the axial direction of the two electric wires. It has a first plate portion that is wider and thicker than the
The second holder is disposed between the second intervening part and the connecting part, and includes a plate-shaped body formed along a direction intersecting the axial direction of the two electric wires. It has a second plate part that is wider and thicker than the
The first plate part is formed with a recessed part for holding each of the two electric wires, and is exposed from the resin mold part,
The second plate portion is formed with a recessed portion for holding each of the two electric wires,
The first holder, the second holder, the connecting part , the first plate part , and the second plate part are integrally formed of resin. Wiring structure. Although the two electric wires in the second holder are covered with a second resin molded part made of molded resin and provided apart from the resin molded part, the two electric wires in the connecting part are The wiring structure according to claim 1, wherein the wiring structure is not covered with mold resin.