wiring member

Abstract

Provided is a technology for waterproofing a connector even without using a rubber plug. A wiring member includes a sheet including a fusion layer, a linear transmission member fused to the fusion layer, a connector housing formed with a cavity in which an end portion of the linear transmission member is housed, and a waterproof member buried between a wall portion of the cavity and the end portion of the linear transmission member. The waterproof member has an inner portion located inside the cavity and an outer portion connected to the inner portion and located outside the cavity. A filling portion in which a resin material is heat-deformed to fill the cavity is provided in the inner portion, and the outer portion is joined to the sheet.

Description

Technical Field

[0001] This disclosure relates to a wiring component. Background Technology

[0002] Connectors sometimes aim to prevent water from seeping into the cavity. In this case, for example, as in the waterproof connector described in Patent Document 1, a rubber plug covering the end of the wire is sometimes fitted tightly against the inner surface of the cavity.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent document 1: Japanese Patent Application Publication No. 2011-146206. Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] It is also expected that water ingress through the cavity in the connector can be suppressed even without the use of a rubber plug.

[0008] Therefore, the goal is to provide a technology that can waterproof connectors even without using rubber plugs.

[0009] Solution for solving the problem

[0010] The wiring component disclosed herein comprises: a sheet including a fusion layer; a linear transmission member fused to the fusion layer; a connector housing having a cavity, the end of the linear transmission member being accommodated in the cavity; and a waterproof component for waterproofing the wall of the cavity and the end of the linear transmission member, the waterproof component having an inner portion located within the cavity and an outer portion connected to the inner portion and located outside the cavity, the inner portion having a filling portion of resin material that fills the cavity due to thermal deformation, and the outer portion being connected to the sheet.

[0011] Invention Effects

[0012] According to this disclosure, the connector can be waterproofed even without using a rubber stopper. Attached Figure Description

[0013] Figure 1 This is a perspective view showing the wiring components involved in Embodiment 1.

[0014] Figure 2 This is a top view showing the wiring components involved in Embodiment 1.

[0015] Figure 3 It is along Figure 2 A sectional view cut along line III-III.

[0016] Figure 4 It is along Figure 2 A sectional view cut along line IV-IV.

[0017] Figure 5 It is along Figure 2 A cross-sectional view cut by the VV line.

[0018] Figure 6 This is a schematic diagram illustrating the manufacturing process of the wiring component according to Embodiment 1.

[0019] Figure 7 This is a schematic diagram illustrating the manufacturing process of the wiring component according to Embodiment 1.

[0020] Figure 8 This is a schematic diagram illustrating the manufacturing process of the wiring component according to Embodiment 1.

[0021] Figure 9 This is a schematic diagram illustrating the manufacturing process of the wiring component according to Embodiment 1.

[0022] Figure 10 This is a top view showing the wiring components involved in Embodiment 2.

[0023] Figure 11 It is along Figure 10 A sectional view cut along the XI-XI line. Detailed Implementation

[0024] [Description of embodiments of this disclosure]

[0025] First, the embodiments described herein will be illustrated.

[0026] The wiring components disclosed herein are as follows.

[0027] (1) A wiring component comprising: a sheet including a fusion layer; a linear transmission member fused to the fusion layer; a connector housing having a cavity, wherein an end of the linear transmission member is received in the cavity; and a waterproof component for waterproofing the space between the wall of the cavity and the end of the linear transmission member, the waterproof component having an inner portion located within the cavity and an outer portion connected to the inner portion and located outside the cavity, the inner portion having a filling portion of resin material that fills the cavity by thermal deformation, and the outer portion being connected to the sheet. By providing the waterproof component, the connector can be waterproofed even without using a rubber plug. By connecting the waterproof component to the sheet, when a force is applied to the linear transmission member in the direction of disengagement from the cavity, the force applied to the end of the linear transmission member is easily dispersed, making stress concentration less likely at specific locations such as the locking portion.

[0028] (2) In the wiring component of (1), a terminal crimping portion with a terminal crimped is provided at the end of the linear transmission component. The terminal crimping portion includes a covered crimping portion where the insulating cylinder of the terminal is crimped to the covered layer of the linear transmission component. The inner portion has a clamping portion sandwiched between the insulating cylinder and the covered layer at the covered crimping portion. As a result, the filling portion is difficult to remove from the cavity.

[0029] (3) In the wiring component of (1) or (2), the melting point of the waterproof component may be lower than the melting point of the coating layer of the linear transmission component. Thus, when the filler material is heated, the filler material can be melted without melting the coating layer as much as possible.

[0030] (4) In any of the wiring components in (1) to (3), the melting point of the waterproof component may be lower than the melting point of the weld layer. Thus, when the filler material is heated, the filler material can be melted without melting the weld layer as much as possible.

[0031] (5) In any of the wiring components in (1) to (4), the boundary portion between the inner portion and the outer portion may have an external shape corresponding to the inner surface of the cavity. This makes it easy to confirm the presence of a filling portion.

[0032] (6) In any of the wiring components in (1) to (5), the waterproof component may be a portion extending from a part of the welded layer. Thus, it is not necessary to set the welded layer and the waterproof component as separate components, thereby reducing the number of components.

[0033] (7) In any of the wiring components in (1) to (5), the waterproof component may be a separate component different from the welded layer, with the outer portion joined to the sheet. This makes it easier to make the physical properties of the waterproof component different from those of the welded layer, and to easily select suitable materials for each.

[0034] [Details of the embodiments of this disclosure]

[0035] Specific examples of wiring components of this disclosure are described below with reference to the accompanying drawings. Furthermore, this disclosure is not limited to these examples, but is shown in the claims and is intended to include all modifications of the same meaning and scope as the claims.

[0036] [Implementation Method 1]

[0037] The wiring components involved in Embodiment 1 will be described below. Figure 1 This is a perspective view showing the wiring component 10 according to Embodiment 1. Figure 2 This is a top view showing the wiring component 10 according to Embodiment 1. Figure 3It is along Figure 2 A sectional view cut along line III-III. Figure 4 It is along Figure 2 A sectional view cut along line IV-IV. Figure 5 It is along Figure 2 A cross-sectional view cut by the VV line.

[0038] The wiring component 10 includes a sheet 20, a linear transmission component 30, a connector housing 50, and a waterproof component 60.

[0039] The sheet 20 includes a weld layer 22. The weld layer 22 is a layer that can be welded to the coating layer 34 of the linear transport member 30. The weld layer 22 contains a resin material, preferably a thermoplastic resin material. The resin material of the weld layer 22 is softened and welded to the object being welded. The type of resin material is not particularly limited, and polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc., can be used. Preferably, the weld layer 22 and the coating layer 34 contain the same type of resin material.

[0040] The construction of the weld layer 22 is not particularly limited. For example, the weld layer 22 can be a sheet with a uniform and solid cross-section (also known as a non-foamed sheet or a solid sheet, etc.). Alternatively, the weld layer 22 can also be a foamed sheet, etc. Alternatively, the weld layer 22 can also be a sheet of fibrous material such as woven fabric, knitted fabric, or non-woven fabric.

[0041] Here, sheet 20 has a single-layer structure consisting only of weld layer 22. The sheet may also have a multi-layer structure with additional layers stacked on top of weld layer 22. In the case of a multi-layer structure with weld layer 22 and additional layers, weld layer 22 may be exposed on at least one main surface of the sheet. The additional layers may be formed of a different material or have a different structure than weld layer 22. The additional layers enhance the functions of weld layer 22 or add functions not present in weld layer 22 to sheet 20. In addition to the materials described above for weld layer 22, the materials constituting the additional layers may also be metals, etc. The structure of the additional layers may be any of the structures described above for weld layer 22. The additional layers may be one layer or two or more layers.

[0042] The welded layer 22 and the additional layer bring the surface of the welded layer 22 into contact with and fix the surface of the additional layer. The method of fixing the welded layer 22 and the additional layer is not particularly limited, but can be achieved by welding or bonding. For example, when at least one of the welded layer 22 and the additional layer is a sheet with voids on its surface, such as a fiber material sheet or a foam sheet, resin material or adhesive can be introduced into the voids for fixing. This achieves a so-called anchoring effect, firmly fixing the welded layer 22 and the additional layer. For example, the welded layer 22 could be a solid sheet made of resin, and the additional layer could be a sheet of fiber material such as non-woven fabric, with the welded layer 22 and the additional layer welded together such that the material of the welded layer 22 fills a portion of the voids in the additional layer.

[0043] The weld layer 22 and the additional layer can be formed to be the same size (the same planar shape). Alternatively, the weld layer 22 and the additional layer can be formed such that one is larger than the other. The weld layer 22 and the additional layer can fix the entire contact area. Alternatively, the weld layer 22 and the additional layer can fix only a portion of the contact area.

[0044] Sheet 20 can be a flexible component. Sheet 20 can have flexibility to conform to the flexing of the linear transmission component 30. Sheet 20 can be such that, in its unfolded state, it is easy to flex in the thickness direction (flexing about an axis parallel to the main surface of sheet 20) and difficult to flex in a direction intersecting the thickness direction (flexing about an axis perpendicular to the main surface of sheet 20).

[0045] A linear transmission member 30 is disposed on the weld layer 22 in the sheet 20. The linear transmission member 30 is welded to the weld layer 22. Thus, the linear transmission member 30 is maintained in a state where it is arranged along a predetermined path on the sheet 20. The predetermined path of the linear transmission member 30 on the sheet 20 is, for example, a path corresponding to the wiring path of the linear transmission member 30 in a vehicle. In this way, by maintaining the linear transmission member 30 in a state corresponding to the path in the vehicle through the sheet 20, it is easy to arrange the linear transmission member 30 along the predetermined wiring path when the wiring member 10 is assembled into the vehicle.

[0046] The predetermined path of the linear transmission member 30 on the sheet 20 includes one or both of a straight section and a flexural section. The predetermined path of the linear transmission member 30 on the sheet 20 may include two straight sections and a flexural section in between. When multiple linear transmission members 30 are included, the paths of the multiple linear transmission members 30 may all be the same, or the paths of some linear transmission members 30 may differ from those of others. When the paths of some linear transmission members 30 differ from those of others, branch portions can be provided on the sheet 20 to separate some of the linear transmission members 30 from others. By providing branch portions on the sheet 20, the portion including the branch portions can also be kept on the predetermined path. When multiple linear transmission members 30 are included, intersection portions where the linear transmission members 30 intersect each other can also be provided on the sheet.

[0047] The planar shape of the sheet 20 can be formed to correspond to the predetermined path of the linear transport member 30 on the sheet 20. If the predetermined path of the linear transport member 30 includes a bending section, the planar shape of the sheet 20 can be bent accordingly to the bending section. Furthermore, if the predetermined path of the linear transport member 30 includes a branch, the planar shape of the sheet 20 can be branched accordingly to the branch. The sheet 20 can be formed such that its dimension along the extension direction of the linear transport member 30 is larger than its dimension along the width direction of the linear transport member 30.

[0048] exist Figure 2 and Figure 5 The image shows sheet 20, linear transport member 30, and welded section WP. Figure 2 and Figure 5 In this configuration, weld joints WP are provided at multiple locations with open intervals along the extension direction of the linear transmission member 30. Each weld joint WP is a short point weld joint along the extension direction of the linear transmission member 30. A series of weld joints WP can be provided along the extension direction of the linear transmission member 30.

[0049] The linear transmission member 30 is a member for transmitting electricity or light. For example, the linear transmission member 30 is an electric wire 30 for transmitting electricity or an optical fiber cable for transmitting light. The linear transmission member 30 has a transmission line body 32 and a sheath 34. The transmission line body is the part that transmits electricity or light. The transmission line body 32 is, for example, the core wire 32 made of conductors in the covered electric wire 30 or the core and sheath in the optical fiber cable. The sheath 34 is a member that covers the area around the transmission line body 32. The sheath 34 can be formed, for example, by extruding resin such as PVC or PE around the transmission line body 32. A linear transmission member may have a single transmission line body or multiple transmission line bodies. The linear transmission member may be a single linear object or a composite of multiple linear objects (such as a twisted wire, a cable formed by concentrating multiple linear objects and covering them with a sheath). Hereinafter, the linear transmission member 30 will be described as a covered electric wire 30 (hereinafter referred to as wire 30).

[0050] A terminal crimping portion 36 is provided at the end of the wire 30. The terminal crimping portion 36 is the portion where the terminal 40 is crimped onto the wire 30. The terminal crimping portion 36 includes a core wire crimping portion 37 and a cover crimping portion 38. More specifically, at the end of the wire 30, the core wire 32 is exposed from the cover layer 34. The terminal 40 is formed, for example, by bending and deforming a conductive sheet material. The terminal 40 has a spool 42, an insulating sleeve 44, and a counter-side connection portion 46. The spool 42 is the portion crimped onto the core wire 32 exposed from the cover layer 34. The portion of the spool 42 crimped onto the core wire 32 is designated as the core wire crimping portion 37. The wire 30 and the terminal 40 are electrically connected via the core wire crimping portion 37. The insulating sleeve 44 is the portion crimped onto the cover layer 34. The portion of the insulating sleeve 44 crimped onto the cover layer 34 is designated as the cover crimping portion 38. The counter-side connection portion 46 is the portion electrically connected to the counter-side conductor. Here, the connecting portion 46 on the opposite side is formed in the shape of a female terminal. Of course, the connecting portion 46 on the opposite side can also be formed in the shape of a male terminal, etc.

[0051] The connector housing 50 is a component molded from an insulating resin such as polybutylene terephthalate (PBT). A cavity 53 is formed in the connector housing 50 such that it extends through one main surface 51 and another main surface 52. Therefore, the cavity 53 opens on both one main surface 51 and the other main surface 52 of the connector housing 50. Hereinafter, the opening of the cavity 53 on one main surface 51 of the connector housing 50 will sometimes be referred to as one opening, and the opening of the cavity 53 on the other main surface 52 of the connector housing 50 will be referred to as the other opening.

[0052] The end of the linear transmission member 30 is housed in the cavity 53. The end of the linear transmission member 30 is inserted into the cavity 53 through one opening. A terminal crimping portion 36 is housed in the cavity 53 through one opening. Furthermore, a portion of the coating layer 34 extending from the terminal crimping portion 36 is also housed in the cavity 53 through one opening. When the opposite-side connection portion 46 is in the shape of a female terminal, it is typically housed within the cavity 53 and does not protrude from the other opening. The opposite-side male terminal is inserted into the cavity 53 through the other opening and contacts the female terminal, i.e., the opposite-side connection portion 46, for electrical connection. When the opposite-side connection portion is in the shape of a male terminal, it typically protrudes outward from the other opening toward the outside of the cavity 53.

[0053] A waterproof component 60 is embedded between the wall of the cavity 53 and the end of the linear transmission component 30. The waterproof component 60 has an inner portion 62 and an outer portion 70. The inner portion 62 is located inside the cavity 53. The outer portion 70 is located outside the cavity 53. The inner portion 62 and the outer portion 70 are connected. The waterproof component 60 is divided into the inner portion 62 and the outer portion 70 by one opening of the cavity 53.

[0054] The inner portion 62 has a filling portion 63. Here, the inner portion 62 also has a clamping portion 64, a connecting portion 65, and a protrusion 66. It is also possible to omit part or all of the clamping portion 64, the connecting portion 65, and the protrusion 66.

[0055] The filler portion 63 is the part of the cavity 53 that is filled by the thermal deformation of the resin material. Here, the filler portion 63 is provided on one opening side of the cavity 53. In particular, here, the filler portion 63 is filled between the wall of the cavity 53 and the coating layer 34 at the portion of the cavity 53 that accommodates a portion of the coating layer 34 extending from the terminal crimp portion 36. The filler portion 63 may also be filled between the wall of the cavity 53 and the terminal crimp portion 36 at the portion of the cavity 53 that accommodates the terminal crimp portion 36. The filler portion 63 extends to one opening of the cavity 53. The filler portion 63 in the inner portion 62 is continuous with the outer portion 70.

[0056] The clamping portion 64 is the part sandwiched between the insulating cylinder 44 and the coating layer 34 at the coated crimping portion 38. Here, at the location of the clamping portion 64, there is a gap between the insulating cylinder 44 and the wall of the cavity 53, and it is not formed as a filling portion 63. The clamping portion 64 is connected to the other opening side of the cavity 53 relative to the filling portion 63. Alternatively, the portion where the clamping portion 64 is located may also be formed as a filling portion 63.

[0057] The connecting portion 65 is the part between the filling portion 63 and the clamping portion 64, and it connects the filling portion 63 and the clamping portion 64. The connecting portion 65 covers a coating layer 34 extending from the terminal crimping portion 36 on the side of the filling portion 63 closer to the terminal crimping portion 36. At the location of the connecting portion 65, there is a gap between the coating layer 34 and the wall of the cavity 53, and it is not formed as a filling portion 63. Alternatively, the connecting portion 65 can be omitted, and the filling portion 63 and the clamping portion 64 can be directly connected.

[0058] The protrusion 66 is the portion that protrudes from the clamping portion 64 toward the spool 42. The protrusion 66 preferably does not reach the core wire crimping portion 37. The protrusion 66 preferably does not reach the core wire 32 exposed from the end of the coating layer 34 and ends at the end of the coating layer 34.

[0059] The outer portion 70 extends from the inner portion 62 outwards from the cavity 53. One end 71 of the outer portion 70 is connected to the sheet 20. The other end 72 of the outer portion 70 is connected to the inner portion 62 (here, the filler portion 63). Here, the waterproof member 60 is a portion extending from a part of the welded layer 22. Therefore, one end 71 of the outer portion 70 has no joint surface with the welded layer 22. The waterproof member 60 is a substrate B described later (see reference). Figure 6 The weld layer 22 is another part of the substrate B. Here, a plurality of wires 30 are welded to the weld layer 22. A slit S is formed in the substrate B from its edge toward its center between the plurality of wires 30. Alternatively, the portion of the substrate B with the slit S formed and separated from each wire 30 may be formed as a waterproof member 60, while the portion without the slit S may be formed as the weld layer 22. Alternatively, a substrate B may be formed with the ends of the slits S as boundaries, forming both the weld layer 22 and the waterproof member 60.

[0060] The boundary between the inner portion 62 and the outer portion 70 has an external shape corresponding to the inner surface of the cavity 53. Here, since the inner surface of the cavity 53 is square, the external shape of the boundary between the inner portion 62 and the outer portion 70 is also square. The other end 72 of the outer portion 70 protrudes outward from the cavity 53 while maintaining the shape of the filling portion 63. The other end 72 of the outer portion 70 may also have an external shape larger than the shape of the inner surface of the cavity 53. In this case, the other end 72 of the outer portion 70 may also contact the edge of one opening of the cavity 53 at a main surface 51 of the connector housing 50.

[0061] One end 71 of the outer portion 70, like the weld layer 22, remains a flat sheet and covers only one side of the linear transport member 30. The other end 72 of the outer portion 70, like the filling portion 63, covers the entire circumference of the linear transport member 30. The middle portion 73 of the outer portion 70 is formed as a transition portion from the shape of one end 71 (flat sheet) to the shape of the other end 72 (circumferentially surrounding the linear transport member 30). That is, the middle portion 73 of the outer portion 70 gradually expands from the shape of covering only one side of the linear transport member 30 on the one end 71 side to the shape of covering the entire circumference of the linear transport member 30 on the other end 72 side, gradually increasing in size to cover the area surrounding the linear transport member 30. At the other end 72 of the connecting portion, one side of the substrate B is fused with the other side.

[0062] <Manufacturing Method>

[0063] Reference Figures 6 to 9 An example of a method for manufacturing wiring component 10 will be described. Figures 6 to 9 This is a schematic diagram illustrating the manufacturing process of the wiring component 10 according to Embodiment 1.

[0064] First, such as Figure 6 As shown, a material is prepared to have wires 30 fused onto a sheet-like substrate B. The substrate B is the portion that will later become the waterproof component 60 and the sheet 20. At the end of the substrate B, slits S are formed between the multiple wires 30. This allows the end of the substrate B to be divided into multiple segments D. Each segment D becomes the waterproof component 60 for each wire 30. The segment D is not fused to the wire 30, but it can also be fused to it. The portion of the segment D fused to the wire 30 can also remain fused after the segment D becomes the waterproof component 60. For example, either or both of the inner portion 62 and the outer portion 70 of the waterproof component 60 can be fused to the wire 30. The end of the wire 30 extends outward from the end of the segment D. At the end of the wire 30, the coating 34 is partially peeled off to expose the core wire 32. In this state, a terminal 40 is crimped to the end of the wire 30.

[0065] like Figure 7 As shown, when terminal 40 is crimped to the end of wire 30, the end of the segmented portion D, together with the covering layer 34, is housed in the insulating cylinder 44. At this time, a portion of the width direction of the segmented portion D (in...) Figure 7 The middle portion (in the width direction) is sandwiched between the insulating cylinder 44 and the coating layer 34. The other portion (in the width direction of the segmented portion D) Figure 7The segmented portion D extends along the insulating cylinder 44 or along the wire 30 at one end and the other end in the width direction. Furthermore, in this state, the insulating cylinder 44 undergoes a seam-convex deformation and is pressed against the coating layer 34, thus forming another part of the segmented portion D sandwiched between the insulating cylinder 44 and the coating layer 34. This maintains the segmented portion D wound around the wire 30. Alternatively, the segmented portion D may be formed such that its width dimension is the same as or longer than the circumference of the wire 30, covering the entire circumference of the wire 30. Alternatively, the segmented portion D may be formed such that its width dimension is shorter than the circumference of the wire 30, partially covering the circumference of the wire 30, thus separating one side of the segmented portion D from the other.

[0066] At this time, as Figure 8 As shown, the segmented portion D gradually expands from a flat shape covering only the linear transmission member 30 towards the midway point from the end of the slit S toward the covered crimp portion 38, gradually increasing in size to surround the area around the linear transmission member 30. Furthermore, the front end of the segmented portion D may protrude slightly towards the spool 42 than the insulating cylinder 44.

[0067] The end of the wire 30, with the terminal 40 crimped to it, is inserted into the cavity 53 through one opening. The end of the wire 30 extends past the terminal crimping portion 36 and is inserted into the position of the coating layer 34. At this time, the segmented portion D is maintained wound around the wire 30 by the coating crimping portion 38, therefore, as... Figure 9 As shown, the portion of the covering layer 34 in the segmented portion D is also inserted to some extent while maintaining its position around the wire 30.

[0068] In the state after the end of the wire 30 has just been inserted into the predetermined position inside the cavity 53, such as Figure 9 As shown, gaps are created between the segmented portion D and the wall of the cavity 53, and between the segmented portion D and the coating layer 34. To fill these gaps, the segmented portion D within the cavity 53 is heated. Although the heating method is not particularly limited, for example, the segmented portion D within the cavity 53 can be heated by hot air from an opening in the connector housing 50 facing the cavity 53 via a heating device 80. Alternatively, for example, the connector housing 50 can be heated, and the substrate B within the cavity 53 can be heated by heat conduction from the connector housing 50.

[0069] The segmented portion D within the heated cavity 53 eventually softens, as... Figure 9 As indicated by the arrows, flow occurs to fill the gaps between the segmented portion D and the wall of the cavity 53, and between the segmented portion D and the covering layer 34. Furthermore, as... Figure 3 As shown, the segmented portion D is tightly attached to the wall of the cavity 53 and the coating layer 34 and solidifies to form the filling portion 63.

[0070] Furthermore, the softening and flow range of the segmented portion D is determined based on heating conditions, etc., and the shape of the portion of the inner portion 62 other than the filling portion 63 is not particularly limited as long as it avoids a shape that would hinder the electrical connection between the opposite connecting portion 46 and the opposite conductor, and the electrical connection between the bobbin 42 and the core wire 32 of the conductor. For example, in the portion of the inner portion 62 other than the filling portion 63, one side and the other side of the segmented portion D may be fused together with the filling portion 63. In the portion of the inner portion 62 other than the filling portion 63, one side and the other side of the segmented portion D may also be unfused and remain as is.

[0071] Furthermore, when the segmented portion D inside the cavity 53 softens and flows to become the filling portion 63, the segmented portion D outside the cavity 53 can also soften and flow. Therefore, the shape of the other end 72 of the outer portion 70 is determined based on heating conditions, etc. At the other end 72 of the outer portion 70, the overlapping portions of one side and the other side of the segmented portion D can be completely fused. At the other end 72 of the outer portion 70, one side and the other side of the segmented portion D can also be overlapping but not fused, leaving residual portions.

[0072] The melting point of the waterproof component 60 (substrate B) is not particularly limited, but it may be lower than that of the connector housing 50. For example, the resin of the waterproof component 60 may be PVC or PE, and the resin of the connector housing 50 may be PBT, thereby making the melting point of the waterproof component 60 lower than that of the connector housing 50.

[0073] The melting point of the waterproof component 60 can also be lower than the melting point of the coating layer 34 of the linear transport component 30. Here, the waterproof component 60 is the portion extending from the weld layer 22, and the waterproof component 60 and the weld layer 22 can be formed using the same resin material as a base. Furthermore, the weld layer 22 and the coating layer 34 can also be formed using the same resin material as a base. Therefore, the waterproof component 60 and the coating layer 34 can be formed using the same resin material. In this case, for example, in the substrate B and the coating layer 34 before processing to become the weld layer 22 and the waterproof component 60, the type and composition of additives can be changed to make the melting point of the waterproof component 60 lower than that of the coating layer 34.

[0074] <Effects of Implementation Method 1, etc.>

[0075] According to the wiring component 10 constructed as described above, the connector can be waterproofed even without the use of a rubber plug by providing the waterproof component 60. More specifically, the outer surface of the filling portion 63 is in close contact with the wall of the cavity 53 all around its circumference, and the inner surface of the filling portion 63 is in close contact with the coating layer 34 all around its circumference. Thus, in the portion where the filling portion 63 is provided, water is prevented from seeping in from between the wall of the cavity 53 and the filling portion 63, and between the coating layer 34 and the filling portion 63.

[0076] The filler portion 63 can simply adhere to the wall of the cavity 53 without adhesive bonding. Alternatively, the filler portion 63 can be adhesively bonded to the wall of the cavity 53. If the filler portion 63 is adhesively bonded to the wall of the cavity 53, water seepage between the wall of the cavity 53 and the filler portion 63 is further suppressed. Similarly, the filler portion 63 can simply adhere to the outer surface of the coating layer 34 without adhesive bonding. Alternatively, the filler portion 63 can be adhesively bonded to the outer surface of the coating layer 34. If the filler portion 63 is adhesively bonded to the outer surface of the coating layer 34, water seepage between the outer surface of the coating layer 34 and the filler portion 63 is further suppressed. The filler portion 63 in this waterproof member 60 can be formed, for example, by inserting the substrate B, which is connected to the weld layer 22, into the cavity 53 and heating and melting it.

[0077] In the wiring assembly 10, by connecting the waterproof component 60 to the sheet 20, when a force is applied to the linear transmission component 30 in the direction of disengagement from the cavity 53, the force applied to the end of the linear transmission component 30 is easily dispersed, making it difficult for stress concentration to occur at specific locations such as the locking part. This locking part is conceived, for example, as a spear-like structure used for locking between the terminal 40 and the connector housing 50.

[0078] Furthermore, the waterproof component 60 has a clamping portion 64 at the covered crimping portion 38, which is sandwiched between the insulating cylinder 44 and the covered layer 34. This makes it difficult for the filling portion 63 to detach from the cavity 53. When the clamping portion 64 is provided, for example, when using a sheet-like substrate B as the filling material, it is possible to cover the linear transmission member 30 while simultaneously crimping the terminal 40 around the substrate B. This makes it easy to maintain the state where the substrate B covers the linear transmission member 30. By forming the substrate B to cover the linear transmission member 30 before heating and melting, when the substrate B is heated and melted and flows to fill the cavity 53, it is difficult to create a gap between the cavity 53 and the linear transmission member 30.

[0079] Furthermore, the boundary between the inner portion 62 and the outer portion 70 has a shape corresponding to the inner surface of the cavity 53. Therefore, it is easy to confirm that a filling portion 63 is provided in the inner portion 62.

[0080] Furthermore, the melting point of the waterproof component 60 is lower than that of the coating layer 34 of the linear transport component 30. As a result, the filler material (substrate B) can be melted when heated without melting the coating layer 34 as much as possible.

[0081] Furthermore, the waterproof component 60 is an extension of a portion of the welded layer 22. Therefore, it is not necessary to designate the welded layer 22 and the waterproof component 60 as separate components, thus reducing the number of components.

[0082] [Implementation Method 2]

[0083] The wiring components involved in Embodiment 2 will be described. Figure 10 This is a top view showing the wiring component 110 according to Embodiment 2. Figure 11 It is along Figure 10 A sectional view taken along line XI-XI. Furthermore, in the description of this embodiment, structural elements identical to those described so far are labeled with the same reference numerals and their descriptions are omitted.

[0084] Wiring component 110 differs from the wiring component 10 described above in that the waterproof component 160 and the welded layer 122 are separate components. The waterproof component 160 joins the outer portion 17 to the sheet 120.

[0085] The joining method between the outer portion 170 and the sheet 120 is not particularly limited. For example, the outer portion 170 and the sheet 120 can be fused together. In this case, the outer portion 170 can be fused to the fusion layer 122 of the sheet 120. If the sheet 120 has an additional layer, the outer portion 170 can be fused to the additional layer. Alternatively, the outer portion 170 and the sheet 120 can be bonded together using adhesives or double-sided tape. Alternatively, the outer portion 170 and the sheet 120 can also be mechanically joined together using clamps or rivets.

[0086] Sheet 120 and outer portion 170 are laminated with their main surfaces overlapping each other. Here, outer portion 170 overlaps on the surface of sheet 120 where wires 30 are arranged. The portion of outer portion 170 that overlaps with sheet 120 is located between wires 30 and sheet 120. Alternatively, outer portion 170 may overlap on the surface of sheet 120 opposite to the surface where wires 30 are arranged.

[0087] Here, the outer portion 170 has a first portion 74 and a second portion 75. The first portion 74 is the portion connected to the inner portion 62. The first portion 74 is provided individually for each wire 30. Therefore, the first portion 74 is provided in the same number as the number of wires 30 (here, multiple). The second portion 75 is the portion connected to the multiple first portions 74. The multiple first portions 74 are connected via the second portion 75. It can also be considered that the first portion 74 is equivalent to the outer portion 70 according to Embodiment 1, and the other end 72 of the first portion 74 is connected to the second portion 75 in place of the weld layer 22. The structure of one end, the other end, and the middle portion of the first portion 74 is the same as the structure of one end 71, the other end 72, and the middle portion 73 of the outer portion 70. The second portion 75 is bonded to the sheet 120. However, the outer portion 170 may also not have the second portion 75. The other end of each of the multiple first portions 74 may also be bonded to the sheet 120 individually.

[0088] For effects other than the waterproof component 60 being integrated with the welded layer 22, the wiring component 110 in this example can achieve the same effects as the wiring component 10 described above. According to the wiring component 110 in this example, by making the waterproof component 160 and the welded layer 122 separate components, it is easy to make the physical properties of the waterproof component 160 different from those of the welded layer 122, and it is easy to select suitable materials for each. For example, it is easy to make the melting point of the waterproof component 160 lower than the melting point of the coating layer 34 of the linear transmission component 30.

[0089] Alternatively, for example, the melting point of the waterproof component 160 can be lower than that of the weld layer 122. This allows the filler material to melt when heated without melting the weld layer 122 as much as possible. Consequently, deformation of the weld layer 122 or the dissolution of the weld between the weld layer 122 and the linear transport member 30 can be suppressed.

[0090] If a separate substrate (which later becomes the substrate of the waterproof component 60) other than the sheet 120 is prepared and bonded to the sheet 120 to replace the substrate B in the manufacturing method of the wiring component 10 of Embodiment 1, then the wiring component 110 can be manufactured thereafter using the same manufacturing method as the manufacturing method of the wiring component 10 of Embodiment 1.

[0091] [Variation Example]

[0092] Even when the weld layer 22 and the waterproof component 60 are integral, as in the wiring member 10 according to Embodiment 1, the melting point of the waterproof component 60 can be lower than the melting point of the weld layer 22, as in the wiring member 110 according to Embodiment 2. For example, it is also conceivable to change the composition of the portion that becomes the waterproof component 60 and the portion that becomes the weld layer 22 in the substrate B before processing, so that the melting point of the portion that becomes the waterproof component 60 is lower than the melting point of the portion that becomes the weld layer 22. However, in the wiring member 10 of Embodiment 1 and the wiring member 110 according to Embodiment 2, the melting points of the waterproof components 60 and 160 can be the same as or higher than the melting points of the weld layers 22 and 122.

[0093] In addition, it has been explained that the waterproof component 60 includes a clamping portion 64, but this is not a necessary structure. The waterproof component 60 may also not include the clamping portion 64. In this case, the substrate B may or may not be temporarily held at the end of the wire 30 before it is inserted into the cavity 53. When the substrate B is temporarily held at the end of the wire 30 before it is inserted into the cavity 53, for example, the substrate B may also be fused or bonded to the end of the wire 30. Alternatively, for example, it may be possible to provide an overlapping portion between one side and the other side of the substrate B by wrapping the substrate B around the end of the wire 30 more than once, and then fused or bonded the overlapping portion.

[0094] Furthermore, this indicates that the melting point of the waterproof component 60 is lower than that of the coating layer 34, but this is not a necessary structure. The melting point of the waterproof component 60 can also be the same as or higher than that of the coating layer 34.

[0095] Furthermore, it has been explained that the boundary between the inner portion 62 and the outer portion 70 has a shape corresponding to the inner surface of the cavity 53, but this is not a necessary structure. For example, the size of the shape at the boundary between the inner portion 62 and the outer portion 70 may be smaller than the size of the inner surface of the cavity 53. Alternatively, for example, at the end of the outer portion 70 connected to the filling portion 63, one side of the substrate B may not be fused with the other side and may be in a separated state.

[0096] Furthermore, this has illustrated an example of connector housing 50 having only one row of cavities 53, but this is not a necessary structure. Connector housings with multiple rows of cavities can also be used. In this case, for example, each cavity segment may have a set of sheets and wires, and multiple sets of sheets and wires may be stacked. Alternatively, for example, a set of sheets and wires may be a single set, and the wires fused to a single sheet may be separately housed in multiple cavities.

[0097] Furthermore, the structures described in the above embodiments and variations can be appropriately combined as long as they do not contradict each other.

[0098] Explanation of reference numerals in the attached figures

[0099] 10 and 110 wiring components

[0100] 20 and 120 sheets

[0101] 22, 122 weld layers

[0102] 30. Electrical wire (linear transmission component)

[0103] 32-core wire

[0104] 34 Covering layer

[0105] 36 terminal crimping section

[0106] 37-core wire crimping section

[0107] 38 Coated Press Joint

[0108] 40 terminals

[0109] 42 spools

[0110] 44 Insulating cylinder

[0111] 46. ​​Connecting part on the opposite side

[0112] 50 Connector Housing

[0113] 51 A main face

[0114] 52 Another main face

[0115] 53 Cavities

[0116] 60 and 160 waterproof components

[0117] 62 Inner part

[0118] 63 Filling section

[0119] 64. Clamping section

[0120] 65 Connecting parts

[0121] 66. Protrusion

[0122] 70, 170 outer part

[0123] 71 One end

[0124] 72 The other end

[0125] 73 Middle section

[0126] 74 Part 1

[0127] 75 Part Two

[0128] B Substrate

[0129] D segment

[0130] S-shaped slit.

Claims

1. A wiring component, comprising: Sheets, including welded layers; A linear transmission component is fused to the fusion layer; A connector housing having a cavity in which the end of the linear transmission member is received; and A waterproof component is provided to waterproof the area between the wall of the cavity and the end of the linear transmission component. The waterproof component has an inner portion located within the cavity and an outer portion connected to the inner portion and located outside the cavity. A filling portion is provided on the inner side, which is formed by the thermal deformation of resin material and fills the space between the wall of the cavity and the end of the linear transport member. The outer portion is connected to the sheet.

2. The wiring component according to claim 1, wherein, A terminal crimping portion with a crimped terminal is provided at the end of the linear transmission member. The terminal crimping portion includes a crimping portion in which the insulating cylinder of the terminal is crimped to the coating layer of the linear transmission member. The inner portion has a clamping part sandwiched between the insulating cylinder and the coating layer at the coated crimping portion.

3. The wiring component according to claim 1, wherein, The melting point of the waterproof component is lower than the melting point of the coating layer of the linear transport component.

4. The wiring component according to claim 2, wherein, The melting point of the waterproof component is lower than the melting point of the coating layer of the linear transport component.

5. The wiring component according to any one of claims 1 to 4, wherein, The melting point of the waterproof component is lower than that of the welded layer.

6. The wiring component according to any one of claims 1 to 4, wherein, The boundary between the inner portion and the outer portion has an external shape corresponding to the inner surface of the cavity.

7. The wiring component according to claim 5, wherein, The boundary between the inner portion and the outer portion has an external shape corresponding to the inner surface of the cavity.

8. The wiring component according to any one of claims 1 to 4, wherein, The waterproof component is a portion extending from a part of the welded layer.

9. The wiring component according to claim 5, wherein, The waterproof component is a portion extending from a part of the welded layer.

10. The wiring component according to claim 6, wherein, The waterproof component is a portion extending from a part of the welded layer.

11. The wiring component according to claim 7, wherein, The waterproof component is a portion extending from a part of the welded layer.

12. The wiring component according to any one of claims 1 to 4, wherein, The waterproof component is a separate component, distinct from the welded layer, and the outer portion is bonded to the sheet.

13. The wiring component according to claim 5, wherein, The waterproof component is a separate component, distinct from the welded layer, and the outer portion is bonded to the sheet.

14. The wiring component according to claim 6, wherein, The waterproof component is a separate component, distinct from the welded layer, and the outer portion is bonded to the sheet.

15. The wiring component according to claim 7, wherein, The waterproof component is a separate component, distinct from the welded layer, and the outer portion is bonded to the sheet.

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