Wiring member

Abstract

The purpose of the present invention is to provide a technique capable of suppressing the penetration of water from a gap between a molded part and an electric wire without using a waterproof plug as an insert member. The wiring member is provided with: a molded part; an electric wire including a first section covered by the molded part and a second section connected to the first section and extending outside the molded part; and a waterproof plug that is provided on the outside of the molded part and covers an annular boundary line, which is a boundary with the electric wire, in the outer surface of the molded part. The waterproof plug includes: a first contact portion that is in contact with the outer surface of the molded portion so as to be able to stop water at a position closer to the outer peripheral side than the annular boundary line; and a second contact part which is in contact with the outer peripheral part of the electric wire in the second section so as to be capable of stopping water.

Description

Technical Field

[0001] The present disclosure relates to wiring components. Background Art

[0002] Patent document 1 discloses a waterproof structure of a cable having an electric wire and a sheath covering the outer circumference of the electric wire. The waterproof structure of the cable comprises: a waterproof plug arranged on the outer circumference of the electric wire exposed from the sheath; a resin member through which the electric wire is inserted and formed with an insertion hole for accommodating the waterproof plug; and a molded body composed of a resin covering a part of the sheath and at least a part of the resin member.

[0003] Prior art literature

[0004] Patent Document 1: Japanese Patent Application Publication No. 2020-25416 Summary of the invention

[0005] Problems to be solved by the invention

[0006] In the waterproof structure of the cable described in Patent Document 1, it is necessary to form a waterproof plug and a resin member together with the cable as an embedding member when molding the molded body.

[0007] Therefore, an object of the present invention is to provide a technology capable of suppressing water from entering from a gap between a mold portion and an electric wire even if a waterproof plug is not used as an embedding component.

[0008] Means for solving problems

[0009] The wiring component disclosed in the present invention comprises: a molded portion; an electric wire, including a first section covered by the molded portion and a second section connected to the first section and extending outside the molded portion; and a waterproof plug, arranged on the outer side of the molded portion, covering an annular boundary line in the outer surface of the molded portion as a boundary with the electric wire, the waterproof plug comprising: a first contact portion, contacting the outer surface of the molded portion at a position closer to the outer peripheral side than the annular boundary line in a waterproof manner; and a second contact portion, contacting the outer peripheral portion of the electric wire in the second section in a waterproof manner.

[0010] Effects of the Invention

[0011] According to the present disclosure, a technology capable of suppressing water from entering from a gap between a mold portion and an electric wire is provided even if a waterproof plug is not used as an embedding component. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view showing the wiring member according to the first embodiment.

[0013] Figure 2 It is along Figure 1Cross-sectional view along line II-II.

[0014] Figure 3 It is an exploded perspective view showing wiring components.

[0015] Figure 4 It is a top view showing the wiring component according to the second embodiment.

[0016] Figure 5 It is along Figure 4 A cross-sectional view of line VV.

[0017] Figure 6 It is an exploded perspective view showing wiring components. DETAILED DESCRIPTION

[0018] [Description of Embodiments of the Present Disclosure]

[0019] First, embodiments of the present disclosure will be described by way of examples.

[0020] The wiring component of the present disclosure is as follows.

[0021] (1) A wiring component comprising: a molded portion; an electric wire including a first section covered by the molded portion and a second section connected to the first section and extending outside the molded portion; and a waterproof plug provided on the outer side of the molded portion and covering an annular boundary line on the outer surface of the molded portion as a boundary with the electric wire, the waterproof plug comprising: a first contact portion contacting the outer surface of the molded portion at a position closer to the outer periphery than the annular boundary line in a manner capable of water stopping; and a second contact portion contacting the outer periphery of the electric wire in the second section in a manner capable of water stopping.

[0022] According to the wiring component of (1), the first contact portion prevents water on the outside of the first contact portion from reaching the annular boundary line along the outer surface of the molded portion. In addition, the second contact portion prevents water on the outside of the second contact portion from reaching the annular boundary line along the outer surface of the wire. Thus, the waterproof plug provided on the outside of the molded portion prevents water from entering the annular boundary line, so that even if the waterproof plug is not used as an embedded component, water can be prevented from entering the gap between the molded portion and the wire.

[0023] (2) In the wiring component of (1), the first contact portion and the outer surface may be arranged along the extending direction of the electric wire, so that the direction in which the first contact portion contacts the outer surface of the molded portion and the direction in which the second contact portion contacts the outer peripheral portion of the electric wire are different from each other.

[0024] (3) In the wiring component of (2), the wiring component may further include a retainer that maintains the waterproof plug in contact with the molded portion and the electric wire, the retainer including a fixing portion that fixes the waterproof plug to the molded portion and a retaining portion that retains the waterproof plug, and the first contact portion is pressed toward the molded portion along the extending direction by the retainer. This makes it easy to maintain the waterproof plug in an appropriate contact state with the electric wire and the molded portion.

[0025] (4) In the wiring component of (2) or (3), the wire may be provided in plurality, the waterproof plug formed in a plate shape may be provided with a plurality of through holes, the wires may pass through the plurality of through holes, respectively, and the inner peripheral surface of each of the plurality of through holes may be provided as the second contact portion. Thus, an increase in the number of components constituting the wiring component can be suppressed.

[0026] (5) In the wiring component of (1), the molded portion may include a main body and a cylindrical portion, the cylindrical portion protruding from the main body along the extending direction of the electric wire and covering the outer periphery of the electric wire, and the first contact portion contacts the outer periphery of the cylindrical portion. Thus, the direction in which the first contact portion contacts the molded portion and the direction in which the second contact portion contacts the electric wire are the same direction.

[0027] (6) In the wiring component of (5), the wiring component may further include a retainer that maintains the waterproof plug in contact with the molded portion and the electric wire, the retainer including a fixing portion that fixes the waterproof plug to the molded portion and a retaining portion that retains the waterproof plug, and the waterproof plug is accommodated in the retaining portion. This makes it easy to maintain the waterproof plug in an appropriate contact state with the electric wire and the molded portion.

[0028] (7) In the wiring component of (6), a locking receiving portion may be provided at the base end of the cylindrical portion, and the fixing portion may include: a protruding piece extending from the retaining portion toward the main body along the extending direction; and a locking portion provided on the protruding piece and locked to the locking receiving portion. In this way, it is possible to prevent the retainer from being larger than the molded portion in the radial direction of the electric wire.

[0029] (8) In any one of the wiring components of (1) to (7), a terminal may be provided at the end of the electric wire in the first section, a sheath may be provided at the second section of the electric wire, the molded portion may include a portion of a connector housing configured to hold the terminal, and the end of the sheath may be separated from the waterproof plug and the retainer along the extension direction. Thus, even when the molded portion is configured as a connector housing, water can be prevented from entering through the gap between the molded portion and the electric wire by the waterproof plug, thereby preventing water from contacting the terminal. In addition, it is easy to provide the molded portion at the end of the electric wire while the electric wire is passed through the waterproof plug and the retainer.

[0030] [Details of the embodiments of the present disclosure]

[0031] Hereinafter, specific examples of the wiring component of the present disclosure will be described with reference to the drawings. In addition, the present disclosure is not limited to these examples, but is indicated by the claims, and is intended to include all changes within the meaning and scope equivalent to the claims.

[0032] [Implementation Method 1]

[0033] Hereinafter, the wiring component according to the first embodiment will be described. Figure 1 It is a plan view showing the wiring member 10 according to the first embodiment. Figure 2 It is along Figure 1 Cross-sectional view along line II-II. Figure 3 It is an exploded perspective view showing the wiring member 10 .

[0034] The wiring component 10 includes: a molded portion 20, an electric wire 30, and a waterproof plug 40. Here, the wiring component 10 also includes a retainer 50. The wiring component 10, for example, connects devices mounted on a vehicle to each other. Here, one end of the wiring component 10 is connected to a device arranged on a running part of the vehicle. The device is, for example, a wheel speed sensor for an electric parking brake (EPB: Electric Parking Brake (electronic parking brake system)) or an ABS (Antilock Brake System (anti-lock brake system)).

[0035] The molded part 20 covers the electric wire 30. The molded part 20 is insert-molded using a mold with the electric wire 30 as an embedded component. The molded part 20 is an insulator. For example, the molded part 20 is made of a resin such as nylon. The molded part 20 includes a main body 21 and a locking receiving part 25. The main body 21 covers the electric wire 30. The locking receiving part 25 is used to fix it to the retainer 50.

[0036] The electric wire 30 includes a first section and a second section. The first section is covered by the molded portion 20. The second section is connected to the first section. The second section extends outside the molded portion 20. The electric wire 30 is a covered electric wire including a core wire 31 and a coating layer 32. The core wire 31 is a conductor. The core wire 31 is made of a metal such as copper, copper alloy, aluminum, aluminum alloy, etc. The coating layer 32 is an insulator. For example, the coating layer 32 is made of a resin such as polyethylene. Here, a plurality of (here two) electric wires 30 are covered by a molded portion 20. Here, a sheath 33 is provided in the second section of the electric wire 30. The sheath 33 is formed by extruding a resin or the like around the plurality of electric wires 30. The sheath 33 is made of a resin such as polyurethane, for example.

[0037] Here, the main body 21 is provided at the end of the electric wire 30 and is provided as a connector housing. Here, the main body 21 is formed in a rectangular parallelepiped shape. A connection port 22 connected to a connector on the other side is provided on one outer surface of the main body 21. In the present disclosure, the outer surface of the main body 21 on which the connection port 22 is provided is referred to as the front surface. The electric wire 30 extends from an outer surface of the main body 21 that is different from the front surface. Here, the electric wire 30 extends from a rear surface 23 on the side opposite to the front surface. The electric wire 30 may also extend from a side surface of the main body 21 that is different from the front surface and the rear surface 23.

[0038] The terminal 34 is connected to the end of the first section of the electric wire 30. The connection method between the electric wire 30 and the terminal 34 is not particularly limited, and can be soldering, crimping or welding. The connection portion between the electric wire 30 and the terminal 34 is covered by the main body 21. The terminal 34 is also provided as an embedded component. The main body 21 as a connector housing holds a plurality of terminals 34 in a predetermined arrangement. The electric wire 30 and the terminal 34 are arranged in the molding die of the molding portion 20 in a state where they are connected to each other to form an electric wire with a terminal.

[0039] Here, the terminal 34 is a male terminal. The interior of the connection port 22 is a space where the front ends of the plurality of male terminals are exposed. The portion surrounding the space inside the connection port 22 in the main body 21 is also called a cover, etc. Another connector housing holding a female terminal is inserted into the connection port 22, and the male terminal is connected to the female terminal.

[0040] The locking receiving portion 25 is provided on the outer surface of the main body 21. Here, the locking receiving portion 25 is respectively provided on a pair of side surfaces of the outer surface of the main body 21. Here, the locking receiving portion 25 is a concave portion in which a part of the outer surface of the main body 21 is recessed.

[0041] A boundary line between the molded portion 20 and the electric wire 30 appears on the outer surface (here, the rear surface 23) of the molded portion 20. The boundary line extends in a ring shape along the outer peripheral edge of the electric wire 30. In the present disclosure, the boundary line is referred to as an annular boundary line 24. A contact surface that contacts the first contact portion 41 is provided on the outer peripheral side of the annular boundary line 24 on the rear surface 23 of the molded portion 20.

[0042] The resin of the molded portion 20 and the resin of the coating layer 32 are different types of resins. For example, the molded portion 20 is made of nylon and the coating layer 32 is made of polyethylene. Although the molded portion 20 and the coating layer 32 are in contact macroscopically, they are not completely fused microscopically, and a gap into which water can penetrate is generated between the molded portion 20 and the coating layer 32. In order to prevent water from penetrating through this gap, a waterproof plug 40 is provided.

[0043] The waterproof plug 40 is provided outside the molded part 20. The waterproof plug 40 is not an embedded component of the molded part 20, but is placed outside the molded part 20 after molding. The waterproof plug 40 covers the annular boundary line 24, and contacts the molded part 20 and the electric wire 30 respectively around the annular boundary line 24. The waterproof plug 40 includes a first contact portion 41 and a second contact portion 42. The first contact portion 41 contacts the outer surface of the molded part 20 at a position closer to the outer peripheral side than the annular boundary line 24 in a waterproof manner. The second contact portion 42 contacts the outer peripheral portion of the electric wire 30 in a waterproof manner in the second section.

[0044] In the present disclosure, contact in a manner capable of stopping water means contact in a manner that does not produce a gap into which water can penetrate at the contact portion. As described above, the molded portion 20 and the electric wire 30 are in contact with each other at a macroscopic level, but a gap into which water can penetrate may be produced at a microscopic level between the molded portion 20 and the electric wire 30. There is no gap between the first contact portion 41 and the molded portion 20, or even if there is a gap, the gap is smaller than the gap between the molded portion 20 and the electric wire 30, and the penetration of water can be suppressed. Similarly, there is no gap between the second contact portion 42 and the electric wire 30, or even if there is a gap, the gap is smaller than the gap between the molded portion 20 and the electric wire 30, and the penetration of water can be suppressed.

[0045] The waterproof plug 40 is formed in a plate shape. The waterproof plug 40 is formed of an elastic material such as rubber. A through hole 43 is formed in the waterproof plug 40. The through hole 43 penetrates the waterproof plug 40 in the thickness direction. The peripheral edge portion of the through hole 43 in the main surface of the waterproof plug 40 is set as a first contact portion 41. The contact surface of the first contact portion 41 and the outer surface of the molded portion 20 is arranged along the extension direction of the electric wire 30 (the protruding direction of the electric wire 30 from the molded portion 20). The inner peripheral surface of the through hole 43 in the waterproof plug 40 is set as a second contact portion 42. The contact surface of the second contact portion 42 and the outer surface of the electric wire 30 is arranged in the radial direction. The electric wire 30 and the through hole 43 are both circular, and the inner diameter of the through hole 43 is the same as or smaller than the outer diameter of the electric wire 30.

[0046] Here, a plurality of through holes 43 are formed in the waterproof plug 40 . The electric wires 30 are respectively passed through the plurality of through holes 43 . One waterproof plug 40 is in contact with the plurality of electric wires 30 . The inner peripheral surface of each of the plurality of through holes 43 is provided as a second contact portion 42 .

[0047] The first contact portion 41 may be provided so as to surround the plurality of through holes 43. In other words, a plurality of first contact portions 41 may be provided so as to correspond to the plurality of through holes 43. One first contact portion 41 may be provided so as to surround all the plurality of through holes 43. In other words, only one first contact portion 41 may be provided for one waterproof plug 40 having a plurality of through holes 43 formed therein.

[0048] Here, the first contact portion 41 is in contact with the flat surface of the rear surface 23. An annular protrusion 44 may be provided on at least one of the first contact portion 41 and the rear surface 23.

[0049] The retainer 50 maintains the contact state of the waterproof plug 40 with respect to the molded portion 20 and the electric wire 30. The retainer 50 includes a fixing portion 51 and a retaining portion 54. The fixing portion 51 is fixed to the molded portion 20. The retaining portion 54 retains the waterproof plug 40. The first contact portion 41 is pressed against the molded portion 20 by the retainer 50 along the extending direction of the electric wire 30. The waterproof plug 40 may also be compressed by the retainer 50 along the extending direction of the electric wire 30. The retainer 50 and the waterproof plug 40 may be in contact in a waterproof manner or may not be in contact.

[0050] The fixing portion 51 has a protruding piece 52 and a locking portion 53. The protruding piece 52 extends from the holding portion 54 toward the molded portion 20 along the extension direction. Here, a pair of protruding pieces 52 is provided. The locking portion 53 is provided on the protruding piece 52. The locking portion 53 is locked to the locking receiving portion 25. Here, the locking portion 53 is formed in a convex shape, and the locking receiving portion 25 is formed in a concave shape. Alternatively, the locking portion 53 is formed in a concave shape, and the locking receiving portion 25 is formed in a convex shape.

[0051] The holding portion 54 is formed in a plate shape. The holding portion 54 is formed with an insertion hole 55. The insertion hole 55 penetrates the holding portion 54 in the thickness direction. The number of the insertion holes 55 is the same as the number of the electric wires 30. The electric wires 30 penetrate the plurality of insertion holes 55, respectively. The inner diameter of the insertion hole 55 may be the same as or larger than the outer diameter of the electric wire 30.

[0052] Here, the holding portion 54 is formed in a plate shape larger than the waterproof plug 40. The waterproof plug 40 is sandwiched between the mold portion 20 and the holding portion 54. A positioning recess 56 is formed in the holding portion 54. The positioning recess 56 is formed to a size corresponding to the waterproof plug 40. The waterproof plug 40 is accommodated in the positioning recess 56. An insertion hole 55 is formed at the bottom of the positioning recess 56. However, the positioning recess 56 may not be formed in the holding portion 54.

[0053] The surface of the holding portion 54 that contacts the waterproof plug 40 (here, the bottom surface of the positioning recess 56 ) is a flat surface. The surface of the holding portion 54 that contacts the waterproof plug 40 may be provided with an annular convex portion 44 .

[0054] The end of the sheath 33 is separated from the waterproof plug 40 and the retainer 50. For example, the molded portion 20 is molded at the end of the electric wire 30 while the electric wire 30 is passed through the waterproof plug 40 and the retainer 50. The molded portion 20 is molded while the waterproof plug 40 and the retainer 50 are retracted to the other end side of the electric wire 30 without entering the molding die of the molded portion 20.

[0055] After the mold 20 is formed, the waterproof plug 40 and the retainer 50 move toward the mold 20 along the electric wires 30. The waterproof plug 40 contacts the rear surface 23, and the locking portion 53 is locked to the locking receiving portion 25, thereby completing the wiring component 10.

[0056] The end of the sheath 33 is separated from the waterproof plug 40 and the retainer 50, and the waterproof plug 40 and the retainer 50 are easily retracted to the other end side of the electric wire 30. The waterproof plug 40 and the retainer 50 retracting to the other end side of the electric wire 30 are blocked by the end of the sheath 33 and are difficult to move to the other end side than the end of the sheath 33. The interval between the end of the sheath 33 and the waterproof plug 40 and the retainer 50 can be appropriately set according to the length dimension of the waterproof plug 40 and the retainer 50 to be retracted.

[0057] According to the wiring component 10 configured as described above, the first contact portion 41 prevents water outside the first contact portion 41 from reaching the annular boundary line 24 along the outer surface of the mold portion 20. In addition, the second contact portion 42 prevents water outside the second contact portion 42 from reaching the annular boundary line 24 along the outer surface of the electric wire 30. Thus, the waterproof plug 40 provided outside the mold portion 20 prevents water from entering the annular boundary line 24, so that even if the waterproof plug 40 is not used as an embedded component, water can be prevented from entering from the gap between the mold portion 20 and the electric wire 30.

[0058] The first contact portion 41 and the outer surface are arranged along the extending direction of the wire 30. Thus, the first contact portion 41 contacts the outer surface of the mold portion 20 and the second contact portion 42 contacts the outer periphery of the wire 30 in different directions.

[0059] In addition, a retainer 50 is provided to maintain the contact state of the waterproof plug 40 with the molded portion 20 and the electric wire 30, and the first contact portion 41 is pressed against the molded portion 20 along the extending direction by the retainer 50. Thus, it is easy to maintain the appropriate contact state of the waterproof plug 40 with the electric wire 30 and the molded portion 20.

[0060] In addition, the inner peripheral surface of each of the plurality of through holes 43 is provided as the second contact portion 42. Thus, an increase in the number of components constituting the wiring member 10 can be suppressed.

[0061] In addition, the molded portion 20 includes a portion configured as a connector housing for holding the terminal 34, so that even when the molded portion 20 is configured as a connector housing, water can be prevented from entering through the gap between the molded portion 20 and the electric wire 30 by the waterproof plug 40, and water can be prevented from contacting the terminal 34. In addition, the end of the sheath 33 is separated from the waterproof plug 40 and the retainer 50, so that the molded portion 20 can be easily provided at the end of the electric wire 30 in a state where the electric wire 30 passes through the waterproof plug 40 and the retainer 50.

[0062] [Implementation Method 2]

[0063] The wiring component according to the second embodiment will be described. Figure 4 It is a plan view showing the wiring member 110 according to the second embodiment. Figure 5 It is along Figure 4 A cross-sectional view of line VV. Figure 6 It is an exploded perspective view showing the wiring member 110. In the description of this embodiment, the same components as those described above are denoted by the same reference numerals, and the description thereof is omitted.

[0064] In the wiring component 110 , the shapes of the mold portion 120 , the waterproof plug 140 , and the holder 150 are different from the shapes of the mold portion 20 , the waterproof plug 40 , and the holder 50 described above.

[0065] The molded portion 120 includes a cylindrical portion 26 in addition to the main body 21 and the locking receiving portion 25. The cylindrical portion 26 protrudes from the rear surface 23 of the main body 21 along the extension direction of the electric wire 30 and covers the outer periphery of the electric wire 30. The cylindrical portion 26 has a first barrel portion 27 and a second barrel portion 28. The first barrel portion 27 protrudes from the rear surface 23 of the main body 21. The second barrel portion 28 protrudes from the front end of the first barrel portion 27. The electric wire 30 protrudes from the front end surface of the second barrel portion 28. The annular boundary line 24 is provided on the front end surface of the second barrel portion 28. The first barrel portion 27 is thicker than the second barrel portion 28. The first barrel portion 27 is formed into a square barrel shape. Here, the cross section of the first barrel portion 27 is formed into a square shape. The second barrel portion 28 is formed into a cylindrical shape.

[0066] Here, the locking receiving portion 25 is not provided on the main body portion 21 but on the cylindrical portion 26. The locking receiving portion 25 is provided on the base end portion (here, the first cylindrical portion 27) of the cylindrical portion 26. The locking receiving portion 25 is provided on four sides of the first cylindrical portion 27.

[0067] The waterproof plug 140 is provided for each electric wire 30. The first contact portion 141 contacts the outer peripheral portion of the cylindrical portion 26 in a waterproof manner. Here, the first contact portion 141 contacts the outer peripheral portion of the second cylindrical portion 28 in a waterproof manner. The waterproof plug 140 is formed in a shape in which the first contact portion 141 and the second contact portion 142 are continuous in the extension direction. Here, the inner circumferential surface and the outer circumferential surface of the waterproof plug 140 are respectively formed in a shape in which the annular convex portion 44 and the annular concave portion 45 are alternately continuous in the axial direction. The annular convex portion 44 of the inner circumferential surface and the annular convex portion 44 of the outer circumferential surface are provided at the same position in the axial direction. The annular concave portion 45 of the inner circumferential surface and the annular concave portion 45 of the outer circumferential surface are provided at the same position in the axial direction. The annular convex portion 44 of the inner circumferential surface of the waterproof plug 140 at one end side in the axial direction becomes the first contact portion 141, and the annular convex portion 44 of the inner circumferential surface at the other end side in the axial direction becomes the second contact portion 142.

[0068] The outer periphery of the cylindrical portion 26 is thicker than the outer periphery of the electric wire 30. In the waterproof plug 40 before being mounted on the electric wire 30 and the cylindrical portion 26, the inner diameter of the first contact portion 141 and the inner diameter of the second contact portion 142 may be different from each other or the same. In the waterproof plug 140 before being mounted on the electric wire 30 and the cylindrical portion 26, the outer diameter of the first contact portion 141 and the outer diameter of the second contact portion 142 may be different from each other or the same.

[0069] The holder 150 is also provided for each electric wire 30 . One waterproof plug 140 is accommodated in the holding portion 154 of one holder 150 .

[0070] The retaining portion 154 includes a barrel 57 and a bottom 58. The barrel 57 is formed in a cylindrical shape. The waterproof plug 140 is accommodated in the barrel 57. Here, in the barrel 57, the cross-sectional shape of the portion accommodating the first contact portion 141 and the cross-sectional shape of the portion accommodating the second contact portion 142 are the same shape. In the barrel 57, the cross-sectional shape of the portion accommodating the first contact portion 141 and the cross-sectional shape of the portion accommodating the second contact portion 142 may also be different shapes. For example, in the barrel 57, the inner diameter of the portion accommodating the first contact portion 141 may be larger than the inner diameter of the portion accommodating the second contact portion 142. The inner diameter of the barrel 57 is the same as the length of one side of the square of the first barrel portion 27. The outer diameter of the barrel 57 is the same as the length of the diagonal of the square of the first barrel portion 27.

[0071] The bottom 58 is not provided at one end of the barrel 57 (the end on the main body 21 side along the axial direction). The bottom 58 is provided at the other end of the barrel 57. The bottom 58 narrows the opening of the barrel 57. An insertion hole 55 is formed at the bottom 58. The electric wire 30 passes through the insertion hole 55. One end of the barrel 57 is opened larger than the other end. The waterproof plug 40 is accommodated in the barrel 57 through the opening of one end of the barrel 57. The waterproof plug 140 is positioned by contacting the bottom 58. The opening edge of one end of the barrel 57 is equivalent to the corner portion of the square of the first barrel portion 27. As a result, the movement of the retainer 150 to the main body 21 side is restricted.

[0072] The first contact portion 141 may be compressed in the radial direction by the retainer 150 or may not be compressed. The second contact portion 142 may be compressed in the radial direction by the retainer 150 or may not be compressed. In the case where the waterproof plug 140 is compressed in the radial direction, the inner diameter of the waterproof plug 140 before compression (the inner diameter of the annular protrusion 44) may be formed to be smaller than the outer diameters of the electric wire 30 and the second barrel portion 28, and the outer diameter of the waterproof plug 140 before compression (the outer diameter of the annular protrusion 44) may be formed to be smaller than the inner diameter of the barrel portion 57. The waterproof plug 140 may be compressed in the axial direction by the retainer 150 or may not be compressed. In the case where the waterproof plug 140 is compressed in the axial direction, the axial length of the waterproof plug 140 before compression may be formed to be smaller than the interval between the bottom 58 and the front end surface of the first barrel portion 27 when the retainer 150 is fixed to the barrel portion 26.

[0073] The fixing portion 151 has four protruding pieces 52 protruding from the holding portion 154. The locking portions 53 of the four protruding pieces 52 are locked to the corresponding locking receiving portions 25 among the locking receiving portions 25 on the four surfaces of the first cylindrical portion 27.

[0074] According to the wiring component 110 thus configured, similarly to the wiring component 10, the first contact portion 141 prevents water outside the first contact portion 141 from reaching the annular boundary line 24 along the outer surface of the mold portion 120. In addition, the second contact portion 142 prevents water outside the second contact portion 142 from reaching the annular boundary line 24 along the outer surface of the electric wire 30. Thus, the intrusion of water toward the annular boundary line 24 is prevented by the waterproof plug 140 provided on the outer side of the mold portion 120, so that even if the waterproof plug 140 is not used as an embedded component, it is possible to prevent water from intruding from the gap between the mold portion 120 and the electric wire 30. In addition, even when the mold portion 120 is provided as a connector housing, it is possible to prevent water from intruding from the gap between the mold portion 120 and the electric wire 30 by the waterproof plug 140, and it is possible to prevent water from contacting the terminal 34. Furthermore, since the waterproof plug 140 and the retainer 150 are separated from the end of the sheath 33 , it is easy to provide the mold portion 120 on the end of the electric wire 30 while the waterproof plug 140 and the retainer 150 are inserted through the electric wire 30 .

[0075] According to wiring member 110, first contact portion 141 contacts the outer periphery of tubular portion 26. Thus, the direction in which first contact portion 141 contacts mold portion 120 and the direction in which second contact portion 142 contacts electric wire 30 are the same.

[0076] In addition, a retainer 150 is provided for maintaining the contact state of the waterproof plug 140 with respect to the molded portion 120 and the electric wire 30, and the waterproof plug 140 is accommodated in the retaining portion 154. Thus, the waterproof plug 140 is positioned at a predetermined position with respect to the cylindrical portion 26 and the electric wire 30, and the waterproof plug 140 is easily maintained in an appropriate contact state with respect to the electric wire 30 and the molded portion 120.

[0077] In addition, the base end of the cylindrical portion 26 is provided with a locking receiving portion 25, and the fixing portion 151 includes a protruding piece 52 extending from the retaining portion 154 toward the main body 21 in the axial direction and a locking portion 53 provided on the protruding piece 52 and locked with the locking receiving portion 25. Thus, the retainer 150 can be prevented from being larger than the molded portion 120 in the radial direction of the electric wire 30.

[0078] [Note]

[0079] In the first embodiment, a case where one waterproof plug 40 is provided in a manner corresponding to the plurality of electric wires 30 is described, but this is not a necessary structure. As in the second embodiment, a waterproof plug may be provided for each electric wire 30. Similarly, in the first embodiment, a case where one retainer 50 is provided in a manner corresponding to the plurality of electric wires 30 is described, but this is not a necessary structure. As in the second embodiment, a retainer may be provided for each electric wire 30.

[0080] In the second embodiment, it is described that the waterproof plug 140 is provided for each electric wire 30, but this is not a necessary structure. It is also possible to provide one waterproof plug corresponding to a plurality of electric wires 30 as in the first embodiment. Similarly, in the second embodiment, it is described that the retainer 150 is provided for each electric wire 30, but this is not a necessary structure. It is also possible to provide one retainer corresponding to a plurality of electric wires 30 as in the first embodiment.

[0081] In addition, the case where the number of waterproof plugs 40 and 140 is the same as the number of retainers 50 and 150 has been described above, but this is not necessarily a configuration. For example, one waterproof plug may be provided in a manner corresponding to a plurality of electric wires 30, and a retainer may be provided for each electric wire 30. In addition, for example, a waterproof plug may be provided for each electric wire 30, and one retainer may be provided in a manner corresponding to a plurality of electric wires 30.

[0082] In addition, although the wiring components 10 and 110 have been described above as including the holders 50 and 150, this is not an essential configuration. The wiring components may not include the holders.

[0083] In addition, although the waterproof plug 40, 140 is described above, the first contact portion 41, 141 and the second contact portion 42, 142 are provided in one member, this is not necessarily a configuration. The member including the first contact portion 41, 141 and the member including the second contact portion 42, 142 may be provided separately.

[0084] In addition, the molded parts 20 and 120 are described above as including the part provided at the end of the wire 30 and forming the connector housing, but this is not necessarily a structure. The molded parts may also be provided at the branching parts of the plurality of wires 30 to maintain the extension direction of each wire 30 .

[0085] In addition, although the case where the sheath 33 is provided in the second section of the electric wire 30 has been described above, this is not an essential configuration. The sheath 33 may not be provided in the second section of the electric wire 30 .

[0086] In addition, the respective configurations described in the above-mentioned embodiments and modifications can be appropriately combined as long as they do not contradict each other.

[0087] Description of Reference Numerals

[0088] 10, 110 wiring components

[0089] 20, 120 molding department

[0090] 21 Main body

[0091] 22 connection ports

[0092] 23 rear surface

[0093] 24 Circular border line

[0094] 25 stopper receiving part

[0095] 26 cylindrical part

[0096] 27 First barrel part

[0097] 28 Second barrel part

[0098] 30 wires

[0099] 31 core wire

[0100] 32 cladding layer

[0101] 33 Sheath

[0102] 34 terminals

[0103] 40, 140 waterproof bolt

[0104] 41, 141 first contact portion

[0105] 42, 142 second contact portion

[0106] 43 through holes

[0107] 44 annular convex part

[0108] 45 annular concave portion

[0109] 50, 150 retainer

[0110] 51, 151 fixed part

[0111] 52 protruding piece

[0112] 53 stopper

[0113] 54, 154 holding part

[0114] 55 through hole

[0115] 56 positioning recess

[0116] 57 barrel

[0117] 58 bottom.

Claims

1. A wiring component comprising: Molding department; an electric wire including a first section covered by the molded portion and a second section connected to the first section and extending outside the molded portion; and a waterproof plug provided on the outer side of the molded portion and covering an annular boundary line of the outer surface of the molded portion as a boundary with the electric wire; The waterproof plug includes a first contact portion that contacts the outer surface of the mold portion at an outer peripheral side of the annular boundary line in a waterproof manner; and a second contact portion that contacts the outer peripheral portion of the electric wire in the second section in a waterproof manner.

2. The wiring component according to claim 1, wherein The first contact portion and the outer surface are arranged along an extending direction of the electric wire.

3. The wiring component according to claim 2, wherein: The wiring component further includes a retainer that maintains the waterproof plug in contact with the molded portion and the electric wire. The retainer includes a fixing portion fixed to the molded portion and a holding portion holding the waterproof plug. The first contact portion is pressed toward the molded portion along the extending direction by the holder.

4. The wiring component according to claim 2 or 3, wherein: The wire is provided with a plurality of The waterproof plug formed in a plate shape is formed with a plurality of through holes. The electric wires pass through the plurality of through holes respectively. The inner peripheral surface of each of the plurality of through holes is provided as the second contact portion.

5. The wiring component according to claim 1, wherein The molded portion includes a main body portion and a cylindrical portion, the cylindrical portion protruding from the main body portion in an extending direction of the electric wire and covering an outer peripheral portion of the electric wire, and the first contact portion contacts the outer peripheral portion of the cylindrical portion.

6. The wiring component according to claim 5, wherein The wiring component further includes a retainer that maintains the waterproof plug in contact with the molded portion and the electric wire. The retainer includes a fixing portion fixed to the molded portion and a holding portion holding the waterproof plug. The waterproof plug is accommodated in the holding portion.

7. The wiring component according to claim 6, wherein A locking receiving portion is provided at the base end of the cylindrical portion. The fixing portion includes: a protruding piece extending from the holding portion toward the main body along the extending direction; and a locking portion provided on the protruding piece and locked to the locking receiving portion.

8. The wiring component according to claim 3 or 6, wherein: A terminal is provided at an end of the first section of the electric wire, A sheath is provided in the second section of the electric wire, The molded portion includes a portion of a connector housing configured to hold the terminal, The end of the sheath is separated from the waterproof plug and the retainer along the extending direction.

Images