Wiring materials

Abstract

To provide a technique capable of suppressing immersion of water from a gap between a mold part and an electric wire without using a waterproof plug as an insert component.SOLUTION: A wiring member 10 comprises: a mold part 20; an electric wire 30 which includes a first section covered by the mold part 20 and a second section which is coupled to the first section and extends outside the mold part 20; and a waterproof plug 40 which is provided outside the mold part 20 and covers an annular boarder line 24 that is a boarder with the electric wire 30 on an outer face of the mold part 20. The waterproof plug 40 includes: a first contact part 41 which contacts with the outer face of the mold part 20 at an outer peripheral side of the annular boarder line 24 so that water can be cut off; and a second contact part 42 which contacts with an outer peripheral part of the electric wire 30 in the second section so that water can be cut off.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Patent Document 1 discloses a waterproof structure for a cable having an electric wire and a sheath covering the outer periphery of the electric wire. The waterproof structure for the cable includes a waterproof plug arranged on the outer periphery of the electric wire exposed from the sheath, a resin member through which the electric wire is inserted and which has an insertion hole formed to accommodate the waterproof plug, and a molded body made of resin that covers a part of the sheath and at least a part of the resin member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-25416 Summary of the Invention [Problem to be solved by the invention]

[0004] In the waterproof structure for a cable described in Patent Document 1, the waterproof plug and the resin member must be inserted together with the cable when forming the molded product.

[0005] Therefore, an object of the present invention is to provide a technology that can prevent water from entering through the gap between the molded part and the electric wire without using a waterproof plug as an insert part. [Means for solving the problem]

[0006] The wiring member of the present disclosure is a wiring member 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 outside the molded portion and covering the annular boundary line which is the boundary between the electric wire and the outer surface of the molded portion, wherein the waterproof plug includes a first contact portion that is in watertight contact with the outer surface of the molded portion outer than the annular boundary line, and a second contact portion that is in watertight contact with the outer periphery of the electric wire in the second section. [Effects of the Invention]

[0007] The present disclosure aims to provide a technology that can prevent water from entering through the gap between the molded portion and the electric wire without using a waterproof plug as an insert part. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view showing the wiring member according to the first embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3] FIG. 3 is an exploded perspective view showing the wiring member. [Figure 4] FIG. 4 is a plan view showing the wiring member according to the second embodiment. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is an exploded perspective view showing the wiring member. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described.

[0010] The wiring member of the present disclosure is as follows.

[0011] (1) A wiring member 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 outside the molded portion and covering an annular boundary line that is the boundary between the electric wire and the outer surface of the molded portion, wherein the waterproof plug includes a first contact portion that contacts the outer surface of the molded portion on the outer side of the annular boundary line in a manner that can prevent water from entering, and a second contact portion that contacts the outer periphery of the electric wire in a manner that can prevent water from entering in the second section.

[0012] According to the wiring member (1), the first contact portion prevents water outside the first contact portion from flowing along the outer surface of the molded portion to the annular boundary line. The second contact portion also prevents water outside the second contact portion from flowing along the outer surface of the electric wire to the annular boundary line. Therefore, the waterproof plug provided on the outside of the molded portion prevents water from entering the annular boundary line, so that water can be prevented from entering through the gap between the molded portion and the electric wire without using a waterproof plug as an insert part.

[0013] (2) In the wiring member of (1), the first contact portion and the outer surface may be aligned 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 periphery of the electric wire are mutually different.

[0014] (3) The wiring member of (2) may further include a retainer that maintains contact of the waterproof plug with the molded portion and the electric wire, the retainer including a portion that is fixed to the molded portion and a holding portion that holds the waterproof plug, and the first contact portion may be pressed against the molded portion along the extension direction by the retainer. This makes it easier to maintain appropriate contact of the waterproof plug with the electric wire and the molded portion.

[0015] (4) In the wiring member of (2) or (3), a plurality of the electric wires may be provided, a plurality of through holes may be formed in the waterproof plug formed in a plate shape, the electric wires may pass through each of the plurality of through holes, and the inner circumferential surface of each of the plurality of through holes may be the second contact portion, thereby suppressing an increase in the number of parts constituting the wiring member.

[0016] (5) In the wiring member of (1), the molded portion may include a main body and a tubular portion that protrudes from the main body in the extending direction of the electric wire and covers an outer periphery of the electric wire, and the first contact portion may be in contact with the outer periphery of the tubular portion, so that 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.

[0017] (6) The wiring member of (5) may further include a retainer that maintains the waterproof plug in contact with the molded portion and the electric wire, the retainer including a portion for fixing to the molded portion and a holding portion that holds the waterproof plug, and the waterproof plug may be housed in the holding portion. This makes it easier to maintain the waterproof plug in proper contact with the electric wire and the molded portion.

[0018] (7) In the wiring member of (6), a locking portion may be provided at a base end of the tubular portion, and the fixing portion may have a protruding piece extending from the holding portion toward the main body along the extension direction, and a locking portion provided on the protruding piece and locking with the locking portion. This prevents the retainer from becoming larger than the molded portion in the radial direction of the electric wire.

[0019] (8) In any one of the wiring members (1) to (7), a terminal may be provided at an end of the first section of the electric wire, a sheath may be provided in the second section of the electric wire, the molded portion may include a portion that serves as a connector housing for holding the terminal, and an end of the sheath may be spaced apart from the waterproof plug and the retainer along the extension direction. This allows the waterproof plug to prevent water from entering through a gap between the molded portion and the electric wire, preventing water from splashing on the terminal, even when the molded portion serves as a connector housing. Furthermore, it is easy to provide the molded portion at the end of the electric wire with the electric wire passed through the waterproof plug and the retainer.

[0020] [Details of the embodiments of the present disclosure] Specific examples of wiring members according to the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0021] [Embodiment 1] The wiring member according to embodiment 1 will be described below. Fig. 1 is a plan view showing a wiring member 10 according to embodiment 1. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. Fig. 3 is an exploded perspective view showing the wiring member 10.

[0022] The wiring member 10 includes a molded portion 20, an electric wire 30, and a waterproof plug 40. Here, the wiring member 10 further includes a retainer 50. The wiring member 10 connects, for example, devices mounted on a vehicle. Here, one end of the wiring member 10 is connected to a device arranged around the vehicle's suspension. Such a device is, for example, a wheel speed sensor for an electric parking brake (EPB) or an antilock brake system (ABS).

[0023] The molded portion 20 covers the electric wire 30. The molded portion 20 is formed by insert molding using a mold with the electric wire 30 as an insert part. The molded portion 20 is an insulator. For example, the molded portion 20 is made of a resin such as nylon. The molded portion 20 includes a main body portion 21 and a locking receiving portion 25. The main body portion 21 covers the electric wire 30. The locking receiving portion 25 is used to fix the retainer 50.

[0024] The electric wire 30 includes a first section and a second section. The first section is covered by the molded section 20. The second section is continuous with the first section. The second section extends outside the molded section 20. The electric wire 30 is a covered electric wire including a core wire 31 and a covering layer 32. The core wire 31 is a conductor. The core wire 31 is made of a metal such as copper, copper alloy, aluminum, or aluminum alloy. The covering layer 32 is an insulator. For example, the covering layer 32 is made of a resin such as polyethylene. Here, multiple (here, two) electric wires 30 are covered by one molded section 20. Here, a sheath 33 is provided in the second section of the electric wire 30. The sheath 33 is formed by extrusion molding a resin or the like around the multiple electric wires 30. The sheath 33 is made of a resin such as polyurethane.

[0025] Here, the main body 21 is provided at the end of the electric wire 30 and serves as a connector housing. Here, the main body 21 is formed in a rectangular parallelepiped shape. A connection port 22 to be connected to a mating connector 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 other than the front surface. Here, the electric wire 30 extends from a rear surface 23 opposite the front surface. The electric wire 30 may also extend from a side surface of the main body 21 other than the front surface and the rear surface 23.

[0026] Terminals 34 are connected to the ends of the first sections of the electric wires 30. The manner of connection between the electric wires 30 and the terminals 34 is not particularly limited and may be soldering, crimping, welding, or the like. The connection portions between the electric wires 30 and the terminals 34 are covered by the main body 21. The terminals 34 are also inserted parts. The main body 21, which serves as a connector housing, holds the multiple terminals 34 in a predetermined arrangement. The electric wires 30 and the terminals 34, connected to each other to form a terminal-equipped electric wire, are placed in the molding die of the molded section 20.

[0027] Here, terminal 34 is a male terminal. The interior of connection port 22 is a space in which the tips of multiple male terminals are exposed. The portion of main body 21 that surrounds the interior space of connection port 22 is also called a hood portion. Another connector housing that holds a female terminal is inserted into connection port 22, and the male terminal and female terminal are connected.

[0028] The locking receiving portions 25 are provided on the outer surface of the main body portion 21. Here, the locking receiving portions 25 are provided on each of a pair of side surfaces of the outer surface of the main body portion 21. Here, the locking receiving portions 25 are recesses in which part of the outer surface of the main body portion 21 is recessed.

[0029] A boundary line between the molded part 20 and the electric wire 30 appears on the outer surface (here, the rear surface 23) of the molded part 20. This boundary line extends in an annular shape along the outer periphery of the electric wire 30. In the present disclosure, this boundary line is referred to as an annular boundary line 24. A contact surface with the first contact part 41 is provided on the rear surface 23 of the molded part 20 on the outer periphery side of the annular boundary line 24.

[0030] The resin of the molded portion 20 and the resin of the covering layer 32 are different types of resin. For example, the molded portion 20 is made of nylon, and the covering layer 32 is made of polyethylene. Although the molded portion 20 and the covering layer 32 are in contact macroscopically, they are not completely fused microscopically, and a gap through which water can penetrate is formed between the molded portion 20 and the covering layer 32. A waterproof plug 40 is provided to prevent water from penetrating through the gap.

[0031] The waterproof plug 40 is provided on the outside of the molded portion 20. The waterproof plug 40 is not an insert part of the molded portion 20, but is attached to the outside of the molded portion 20 after molding. The waterproof plug 40 covers the annular boundary line 24 and contacts both the molded portion 20 and the electric wire 30 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 portion 20 on the outer periphery side of the annular boundary line 24 in a manner that allows water to flow through. The second contact portion 42 contacts the outer periphery of the electric wire 30 in a manner that allows water to flow through in the second section.

[0032] In the present disclosure, being in contact in a manner that can stop water from entering means being in contact in such a way that no gaps through which water can enter are formed at the contact portion. As described above, macroscopically, the molded portion 20 and the electric wire 30 are in contact with each other, but microscopically, gaps through which water can enter may be formed 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, thereby preventing water from entering. 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, thereby preventing water from entering.

[0033] The waterproof plug 40 is formed in a plate shape. The waterproof plug 40 is made 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 portion of the through hole 43 on the main surface of the waterproof plug 40 is defined as a first contact portion 41. The first contact portion 41 and the contact surface on the outer surface of the molded portion 20 are aligned along the extension direction of the electric wire 30 (the direction in which the electric wire 30 protrudes from the molded portion 20). The inner peripheral surface of the through hole 43 in the waterproof plug 40 is defined as a second contact portion 42. The second contact portion 42 and the contact surface on the outer surface of the electric wire 30 are aligned 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.

[0034] Here, a plurality of through holes 43 are formed in the waterproof plug 40. An electric wire 30 passes through each of the plurality of through holes 43. One waterproof plug 40 contacts the plurality of electric wires 30. The inner circumferential surface of each of the plurality of through holes 43 serves as a second contact portion 42.

[0035] The first contact portion 41 may be provided so as to surround each of the plurality of through holes 43. In other words, a plurality of first contact portions 41 may be provided so as to correspond to each of the plurality of through holes 43. One first contact portion 41 may be provided so as to surround all of the plurality of through holes 43. In other words, only one first contact portion 41 may be provided for one waterproof plug 40 in which a plurality of through holes 43 are formed.

[0036] Here, the flat surfaces of the first contact portion 41 and the rear surface 23 are in contact with each other. An annular protrusion 44 may be provided on at least one of the first contact portion 41 and the rear surface 23.

[0037] The retainer 50 maintains the waterproof plug 40 in contact with the molded section 20 and the electric wire 30. The retainer 50 includes a fixed section 51 and a holding section 54. The fixed section 51 is fixed to the molded section 20. The holding section 54 holds the waterproof plug 40. The first contact section 41 is pressed against the molded section 20 by the retainer 50 in the extension direction of the electric wire 30. The waterproof plug 40 may be compressed by the retainer 50 in the extension direction of the electric wire 30. The retainer 50 and the waterproof plug 40 may or may not be in contact to be able to stop water.

[0038] 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 in 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 locks with the lock receiving portion 25. Here, the locking portion 53 is formed in a convex shape, and the lock receiving portion 25 is formed in a concave shape. The locking portion 53 may also be formed in a concave shape, and the lock receiving portion 25 may be formed in a convex shape.

[0039] The holding portion 54 is formed in a plate shape. Insertion holes 55 are formed in the holding portion 54. The insertion holes 55 penetrate the holding portion 54 in the thickness direction. The number of insertion holes 55 is the same as the number of electric wires 30. An electric wire 30 penetrates each of the multiple insertion holes 55. The inner diameter of the insertion holes 55 may be the same as or larger than the outer diameter of the electric wires 30.

[0040] Here, the holding portion 54 is formed in the shape of a plate that is larger than the waterproof plug 40. The waterproof plug 40 is sandwiched between the molded 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 that corresponds to the waterproof plug 40. The waterproof plug 40 fits into the positioning recess 56. An insertion hole 55 is formed in the bottom of the positioning recess 56. However, the positioning recess 56 does not necessarily have to be formed in the holding portion 54.

[0041] The surface of the holding portion 54 that comes into contact with the waterproof plug 40 (here, the bottom surface of the positioning recess 56) is flat. An annular protrusion 44 may be provided on the surface of the holding portion 54 that comes into contact with the waterproof plug 40.

[0042] The end of the sheath 33 is separated from the waterproof plug 40 and the retainer 50. For example, the molded portion 20 is formed 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 formed while the waterproof plug 40 and the retainer 50 are retracted to the other end side of the electric wire 30 so that they do not enter the molding die for the molded portion 20.

[0043] After the molding of the molded section 20, the waterproof plug 40 and the retainer 50 are moved along the electric wire 30 toward the molded section 20. The waterproof plug 40 comes into contact with the rear surface 23, and the locking portion 53 is locked into the lock receiving portion 25, thereby forming the wiring member 10.

[0044] The end of the sheath 33 is spaced apart from the waterproof plug 40 and the retainer 50, making it easy for the waterproof plug 40 and the retainer 50 to retract toward the other end of the electric wire 30. The waterproof plug 40 and the retainer 50 retracting toward the other end of the electric wire 30 are stopped by the end of the sheath 33, making it difficult for them to move toward the other end from the end of the sheath 33. The distance between the end of the sheath 33 and the waterproof plug 40 and the retainer 50 can be set appropriately depending on the length dimension over which the waterproof plug 40 and the retainer 50 are retracted.

[0045] In the wiring member 10 configured as described above, the first contact portion 41 prevents water outside the first contact portion 41 from flowing along the outer surface of the molded portion 20 and reaching the annular boundary line 24. Furthermore, the second contact portion 42 prevents water outside the second contact portion 42 from flowing along the outer surface of the electric wire 30 and reaching the annular boundary line 24. As a result, the waterproof plug 40 provided on the outside of the molded portion 20 prevents water from entering the annular boundary line 24, and therefore, water can be prevented from entering through the gap between the molded portion 20 and the electric wire 30 without using the waterproof plug 40 as an insert part.

[0046] Moreover, the first contact portion 41 and the outer surface are aligned along the extension direction of the electric wire 30. As a result, the direction in which the first contact portion 41 contacts the outer surface of the molded portion 20 and the direction in which the second contact portion 42 contacts the outer periphery of the electric wire 30 are different from each other.

[0047] The connector further includes a retainer 50 that maintains the waterproof plug 40 in contact with the molded section 20 and the electric wire 30, and the first contact portion 41 is pressed against the molded section 20 in the extension direction by the retainer 50. This makes it easier to maintain the waterproof plug 40 in appropriate contact with the electric wire 30 and the molded section 20.

[0048] Furthermore, the inner circumferential surface of each of the plurality of through holes 43 serves as the second contact portion 42. This makes it possible to suppress an increase in the number of parts that constitute the wiring member 10.

[0049] Furthermore, since the molded part 20 includes a portion that serves as a connector housing for holding the terminals 34, even when the molded part 20 serves as a connector housing, the waterproof plug 40 can prevent water from entering through the gap between the molded part 20 and the electric wire 30, thereby preventing water from getting on the terminals 34. Furthermore, since the end of the sheath 33 is separated from the waterproof plug 40 and the retainer 50, it becomes easy to provide the molded part 20 at the end of the electric wire 30 with the electric wire 30 passed through the waterproof plug 40 and the retainer 50.

[0050] [Embodiment 2] A wiring member according to a second embodiment will be described. Fig. 4 is a plan view showing a wiring member 110 according to the second embodiment. Fig. 5 is a cross-sectional view taken along line VV in Fig. 4. Fig. 6 is an exploded perspective view showing the wiring member 110. In the description of this embodiment, components similar to those described so far are designated by the same reference numerals, and description thereof will be omitted.

[0051] In the wiring member 110, the shapes of the molded section 120, the waterproof plug 140, and the retainer 150 are different from the shapes of the molded section 20, the waterproof plug 40, and the retainer 50 described above.

[0052] The molded part 120 further includes a tubular part 26 in addition to the main body part 21 and the locking receiving part 25. The tubular part 26 protrudes from the rear surface 23 of the main body part 21 in the extension direction of the electric wire 30 and covers the outer periphery of the electric wire 30. The tubular part 26 has a first tubular part 27 and a second tubular part 28. The first tubular part 27 protrudes from the rear surface 23 of the main body part 21. The second tubular part 28 protrudes from the tip of the first tubular part 27. The electric wire 30 protrudes from the tip surface of the second tubular part 28. The annular boundary line 24 is provided on the tip surface of the second tubular part 28. The first tubular part 27 is thicker than the second tubular part 28. The first tubular part 27 is formed in a rectangular tubular shape. Here, the cross section of the first tubular part 27 is formed in a square shape. The second tubular part 28 is formed in a cylindrical shape.

[0053] Here, the lock receiving portion 25 is not provided on the main body portion 21, but on the tubular portion 26. The lock receiving portion 25 is provided on the base end portion (here, the first tubular portion 27) of the tubular portion 26. The lock receiving portion 25 is provided on each of the four sides of the first tubular portion 27.

[0054] A separate waterproof plug 140 is provided for each electric wire 30. The first contact portion 141 contacts the outer periphery of the tubular portion 26 in a waterproof manner. Here, the first contact portion 141 contacts the outer periphery of the second tubular portion 28 in a waterproof manner. The waterproof plug 140 is formed so that the first contact portion 141 and the second contact portion 142 are continuous in the extension direction. Here, the inner and outer circumferential surfaces of the waterproof plug 140 are each formed so that annular protrusions 44 and annular recesses 45 are alternately continuous in the axial direction. The annular protrusions 44 on the inner circumferential surface and the annular protrusions 44 on the outer circumferential surface are located at the same position in the axial direction. The annular recesses 45 on the inner circumferential surface and the annular recesses 45 on the outer circumferential surface are located at the same position in the axial direction. The annular protrusions 44 on the inner circumferential surface at one axial end of the waterproof plug 140 serve as the first contact portion 141, and the annular protrusions 44 on the inner circumferential surface at the other axial end serve as the second contact portion 142.

[0055] The outer periphery of the tubular portion 26 is thicker than the outer periphery of the electric wire 30. In the waterproof plug 40 before being attached to the electric wire 30 and the tubular 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 may be the same. In the waterproof plug 140 before being attached to the electric wire 30 and the tubular 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 may be the same.

[0056] A separate retainer 150 is also provided for each electric wire 30. One waterproof plug 140 is housed in the holding portion 154 of one retainer 150.

[0057] The holding portion 154 has a tubular portion 57 and a bottom portion 58. The tubular portion 57 is formed in a cylindrical shape. The waterproof plug 140 is housed in the tubular portion 57. Here, the cross-sectional shape of the portion of the tubular portion 57 that houses the first contact portion 141 and the cross-sectional shape of the portion that houses the second contact portion 142 are identical. The cross-sectional shape of the portion of the tubular portion 57 that houses the first contact portion 141 and the cross-sectional shape of the portion that houses the second contact portion 142 may be different from each other. For example, the inner diameter of the portion of the tubular portion 57 that houses the first contact portion 141 may be larger than the inner diameter of the portion that houses the second contact portion 142. The inner diameter of the tubular portion 57 is approximately the same as the length of one side of the square of the first tubular portion 27. The outer diameter of the tubular portion 57 is approximately the same as the length of the diagonal of the square of the first tubular portion 27.

[0058] No bottom 58 is provided at one end of the tubular portion 57 (the end on the main body 21 side along the axial direction). The bottom 58 is provided at the other end of the tubular portion 57. The bottom 58 narrows the opening of the tubular portion 57. One insertion hole 55 is formed in the bottom 58. The electric wire 30 passes through the insertion hole 55. The opening at one end of the tubular portion 57 is larger than the other end. The waterproof plug 40 is placed inside the tubular portion 57 through the opening at one end of the tubular portion 57. The waterproof plug 140 is positioned by contacting the bottom 58. The edge of the opening at one end of the tubular portion 57 contacts the square corner of the first tubular portion 27. This restricts movement of the retainer 150 toward the main body 21 side.

[0059] The first contact portion 141 may or may not be compressed in the radial direction by the retainer 150. The second contact portion 142 may or may not be compressed in the radial direction by the retainer 150. When the waterproof plug 140 is compressed in the radial direction, it is preferable that the inner diameter of the waterproof plug 140 before compression (the inner diameter of the annular protrusion 44) is smaller than the outer diameter of the electric wire 30 and the second tubular portion 28, and that the outer diameter of the waterproof plug 140 before compression (the outer diameter of the annular protrusion 44) is smaller than the inner diameter of the tubular portion 57. The waterproof plug 140 may or may not be compressed in the axial direction by the retainer 150. When the waterproof plug 140 is compressed in the axial direction, it is preferable that the axial length of the waterproof plug 140 before compression is smaller than the distance between the bottom portion 58 and the tip surface of the first tubular portion 27 when the retainer 150 is fixed to the tubular portion 26.

[0060] 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 corresponding locking receiving portions 25 among the locking receiving portions 25 on the four sides of the first cylindrical portion 27.

[0061] In the wiring member 110 configured in this manner, similarly to the above-described wiring member 10, the first contact portion 141 prevents water outside the first contact portion 141 from flowing along the outer surface of the molded portion 120 and reaching the annular boundary line 24. Furthermore, the second contact portion 142 prevents water outside the second contact portion 142 from flowing along the outer surface of the electric wire 30 and reaching the annular boundary line 24. As a result, the waterproof plug 140 provided on the outside of the molded portion 120 prevents water from entering the annular boundary line 24, and therefore, water can be prevented from entering through a gap between the molded portion 120 and the electric wire 30 without using the waterproof plug 140 as an insert part. Furthermore, even when the molded portion 120 is used as a connector housing, the waterproof plug 140 can prevent water from entering through a gap between the molded portion 120 and the electric wire 30, thereby preventing water from getting on the terminal 34. Furthermore, since the waterproof plug 140 and the retainer 150 are located away from the end of the sheath 33, it is easy to provide the molded portion 120 at the end of the electric wire 30 with the waterproof plug 140 and the retainer 150 passed through the electric wire 30.

[0062] Furthermore, according to the wiring member 110, the first contact portion 141 contacts the outer periphery of the tubular portion 26. As a result, the direction in which the first contact portion 141 contacts the molded portion 120 and the direction in which the second contact portion 142 contacts the electric wire 30 are the same.

[0063] The waterproof plug 140 is further provided with a retainer 150 that maintains contact between the molded portion 120 and the electric wire 30 and the waterproof plug 140, and is housed in a holding portion 154. This positions the waterproof plug 140 at a predetermined position relative to the tubular portion 26 and the electric wire 30, making it easier to maintain appropriate contact between the waterproof plug 140 and the electric wire 30 and the molded portion 120.

[0064] Furthermore, locking receiving portion 25 is provided at the base end of tubular portion 26, and fixing portion 151 has protruding piece 52 extending from holding portion 154 along the axial direction toward main body portion 21, and locking portion 53 provided on protruding piece 52 and locking with locking receiving portion 25. This makes it possible to prevent retainer 150 from becoming larger than molded portion 120 in the radial direction of electric wire 30.

[0065] [Note] In the first embodiment, it has been described that one waterproof plug 40 is provided to correspond to a plurality of electric wires 30, but this is not an essential configuration. As in the second embodiment, a waterproof plug may be provided for each electric wire 30. Similarly, in the first embodiment, it has been described that one retainer 50 is provided to correspond to a plurality of electric wires 30, but this is not an essential configuration. As in the second embodiment, a retainer may be provided for each electric wire 30.

[0066] In the second embodiment, it has been described that a waterproof plug 140 is provided for each electric wire 30, but this is not an essential configuration. As in the first embodiment, one waterproof plug may be provided to correspond to a plurality of electric wires 30. Similarly, in the second embodiment, it has been described that a retainer 150 is provided for each electric wire 30, but this is not an essential configuration. As in the first embodiment, it may be provided that one retainer is provided to correspond to a plurality of electric wires 30.

[0067] Furthermore, although it has been described above that the number of waterproof plugs 40, 140 and the number of retainers 50, 150 are the same, this is not a required configuration. For example, one waterproof plug may be provided to correspond to a plurality of electric wires 30, and a retainer may be provided for each electric wire 30. Also, for example, a waterproof plug may be provided for each electric wire 30, and one retainer may be provided to correspond to a plurality of electric wires 30.

[0068] Furthermore, although the wiring members 10, 110 have been described as including the retainers 50, 150, this is not an essential configuration. The wiring members do not necessarily have to include a retainer.

[0069] Furthermore, up to this point, the waterproof plugs 40, 140 have been described as including the first contact portions 41, 141 and the second contact portions 42, 142 in a single member, but this is not a required configuration. A member including the first contact portions 41, 141 and a member including the second contact portions 42, 142 may be provided separately.

[0070] Furthermore, although the molded portions 20, 120 have been described so far as being provided at the ends of the electric wires 30 and including portions that serve as connector housings, this is not a required configuration. The molded portions may also be provided at branched portions of multiple electric wires 30 to maintain the extension direction of each electric wire 30.

[0071] Furthermore, although it has been described above that the sheath 33 is provided in the second section of the electric wire 30, this is not an essential configuration. The sheath 33 does not necessarily have to be provided in the second section of the electric wire 30.

[0072] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually contradictory. [Explanation of symbols]

[0073] 10, 110 Wiring materials 20, 120 molded part 21 Main body 22 Connection port 23 Rear 24 Circular Boundary 25 Locking receiving part 26 Cylindrical part 27 First cylinder part 28 Second cylinder part 30 Electric wire 31 Core Wire 32 Covering layer 33 Sheath 34 terminals 40, 140 waterproof plug 41, 141 1st contact part 42, 142 2nd contact part 43 Through hole 44 Annular convex part 45 Annular recess 50, 150 retainer 51, 151 Fixed part 52 Projecting piece 53 Locking part 54, 154 Holding part 55 Insertion hole 56 Positioning recess 57 Cylinder part 58 Bottom

Claims

1. 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; a waterproof plug provided on the outside of the molded portion and covering an annular boundary line that is a boundary between the outer surface of the molded portion and the electric wire; Equipped with the first section of the electric wire is in contact with the molded portion, The waterproof plug is a wiring member including a first contact portion that contacts the outer surface of the molded portion in a waterproof manner on the outer side of the annular boundary line, and a second contact portion that contacts the outer periphery of the electric wire in a waterproof manner in the second section.

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

3. The wiring member according to claim 2, a retainer that maintains contact of the waterproof plug with the molded portion and the electric wire; the retainer includes a fixing portion for fixing to the molded portion and a holding portion for holding the waterproof plug; The first contact portion is pressed against the molded portion along the extension direction by the retainer.

4. The wiring member according to claim 2 or 3, A plurality of the electric wires are provided, A plurality of through holes are formed in the waterproof plug formed in a plate shape, The electric wire passes through each of the plurality of through holes, The wiring member, wherein the inner circumferential surface of each of the plurality of through holes serves as the second contact portion.

5. The wiring member according to claim 1, the molded portion includes a main body portion and a tubular portion that protrudes from the main body portion in an extending direction of the electric wire and covers an outer periphery of the electric wire, The first contact portion is in contact with an outer periphery of the cylindrical portion.

6. The wiring member according to claim 5, a retainer that maintains contact of the waterproof plug with the molded portion and the electric wire; the retainer includes a fixing portion for fixing to the molded portion and a holding portion for holding the waterproof plug; The waterproof plug is housed in the holding portion.

7. The wiring member according to claim 6, A lock receiving portion is provided at a base end of the cylindrical portion, The fixing portion is a wiring member having a protruding piece extending from the holding portion toward the main body portion along the extension direction, and a locking portion provided on the protruding piece that locks into the lock receiving portion.

8. The wiring member according to claim 3 or 6, a terminal is provided at an end of the first section of the electric wire; a sheath is provided on the second section of the electric wire; the molded portion includes a portion that serves as a connector housing for holding the terminals, a wiring member, wherein an end of the sheath is spaced apart from the waterproof plug and the retainer along the extension direction;

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