WO2016035535A1

WO2016035535A1 - Electrical wire with holder

Info

Publication number: WO2016035535A1
Application number: PCT/JP2015/073006
Authority: WO
Inventors: 裕一木本; 知聖金; 末谷　正晴
Original assignee: 株式会社オートネットワーク技術研究所; 住友電装株式会社; 住友電気工業株式会社
Priority date: 2014-09-04
Filing date: 2015-08-17
Publication date: 2016-03-10
Also published as: JP2016054100A

Abstract

The purpose of the present invention is to make it possible to absorb an error between the support position of an electrical wire with respect to an attachment site and the connection position of a terminal of an electrical wire end section, while preventing the presence of water between the electrical wire and a holder. In the present invention, an electrical wire with a holder is equipped with: an electrical wire to the end section of which a terminal is attached; and a holder. The holder is configured so as to be attachable to the attachment site and so that a retention hole through which the electrical wire can be passed and installed is formed therein. In a state in which an inner seal section, disposed on at least a portion in the direction of extension of the retention hole, is in contact with the outer periphery of the electrical wire, the electrical wire is supported with respect to the retention hole so as to be movable in the direction of extension of the retention hole.

Description

Electric wire with holder

This invention relates to an electric wire with a holder provided with a holder for holding an electric wire.

Patent Document 1 discloses a molded connector in which a primary resin mold part and a secondary resin mold part are molded on a shielded wire.

In this molded connector, the primary resin mold part and the like are molded on the shielded electric wire, so that water blocking between the shielded electric wire and the primary resin molded part is achieved. In addition, for example, the molded connector includes a primary resin mold portion and a secondary resin mold portion that are inserted through the through hole of the electrical device casing to be connected, and the terminal at the end of the shielded wire is the terminal on the electrical device casing side. Used in a manner to connect to

JP 2002-216926 A

However, according to Patent Document 1, the primary resin mold part is molded with respect to the shielded electric wire, and then the secondary resin mold part is molded with the mold. For this reason, the position of the shielded electric wire is constant in the primary resin mold part and the secondary resin mold part.

For this reason, for example, when there is an error in the positional relationship between the through hole of the electrical equipment housing and the terminal on the electrical equipment housing side, it is difficult to absorb those errors, and it is difficult to connect the terminals. Become.

Therefore, the present invention is to make it possible to easily absorb the error between the support position of the electric wire with respect to the attachment target portion and the connection position of the terminal at the end of the electric wire while water is stopped between the electric wire and the holder. Objective.

In order to solve the above-described problem, the electric wire with a holder according to the first aspect is configured to be attachable to an electric wire having a terminal attached to an end thereof and an attachment target portion, and the electric wire is arranged in a penetrating state. A holding hole is formed, and the inner seal portion provided in at least part of the extending direction of the holding hole is in contact with the outer periphery of the electric wire, and the electric wire extends with respect to the holding hole. And a holder supported so as to be movable along the present direction.

A 2nd aspect is an electric wire with a holder which concerns on a 1st aspect, Comprising: The said electric wire is a core wire, the insulation coating which covers the circumference | surroundings of the said core wire, the shield layer which covers the outer periphery of the said insulation coating, and the said shield layer The holder is provided on the attachment target site side with respect to the holder portion, and can be electrically connected to the attachment target site. A shield terminal portion, and the shield layer is exposed in the holding hole and electrically connected to the shield terminal portion.

A third aspect is the electric wire with a holder according to the second aspect, wherein the inner seal portion is provided in a position away from the shield terminal portion in the holding hole, and the holding hole is A gap forming portion capable of forming a gap on the outer periphery of the electric wire between the shield terminal portion and the inner seal portion is included.

The fourth aspect is an electric wire with a holder according to any one of the first to third aspects, and further includes an interposed seal portion that can be interposed between the holder and the attachment target site.

A fifth aspect is the electric wire with a holder according to any one of the first to fourth aspects, wherein the inner seal portion is provided in the holding hole and can be brought into contact with an outer periphery of the electric wire. It is formed of an elastic member.

A sixth aspect is an electric wire with a holder according to any one of the first to fifth aspects, wherein the holding hole is reduced in diameter at an outer periphery of a position corresponding to the inner seal portion of the holder. A restraining member is provided.

According to the first to sixth aspects, the inner seal portion provided in at least a part of the extending direction of the holding hole is in contact with the outer periphery of the electric wire, so that the water stop between the electric wire and the holder is prevented. It is done. Further, since the electric wire is supported so as to be movable along the extending direction with respect to the holding hole, the position where the electric wire is supported by attaching the holder to the attachment target portion, and the terminal at the end of the electric wire If there is an error between the connection position and the connecting position, the error can be easily absorbed by moving the electric wire along the extending direction.

According to the second aspect, the shield layer is exposed in the holding hole and connected to the shield terminal portion. And a shield layer can be earth | grounded by electrically connecting this shield terminal part to an attachment object site | part. For this reason, the shield layer of the electric wire can be grounded by being electrically connected to the attachment target portion while water is stopped in the holder.

According to the third aspect, when the electric wire is moved along the extending direction with respect to the holder while the shield layer and the shield terminal portion are electrically connected in the holding hole, the surplus portion of the shield layer is Can occur. Therefore, a surplus portion of the shield layer is accommodated in the gap by providing a gap forming portion that can form a gap on the outer periphery of the electric wire between the shield terminal portion and the inner seal portion in the holding hole. be able to. Thereby, an electric wire can be easily moved with respect to a holder.

According to the 4th aspect, since the interposition seal part can be interposed between a holder and an attachment object part in the state where the holder was attached to an attachment object part, it is possible to improve water stoppage between them. it can.

According to the fifth aspect, it is possible to more reliably stop water between the electric wire and the holder by bringing the annular elastic member into contact with the outer periphery of the electric wire.

According to the sixth aspect, since the holding member for reducing the diameter of the holding hole is provided on the outer periphery of the holder at the position corresponding to the seal portion, the gap between the electric wire and the holder can be more reliably stopped. Can be water.

It is a general | schematic fragmentary sectional view which shows the electric wire with a holder which concerns on embodiment. It is a schematic perspective view which shows an electric wire with a holder same as the above. It is a schematic exploded view which shows an electric wire with a holder. It is explanatory drawing which shows the state which attached the electric wire with a holder to an attachment object site | part, and connected the terminal to the fixed terminal. It is explanatory drawing which shows the state which attached the electric wire with a holder to an attachment object site | part, and connected the terminal to the fixed terminal. It is a schematic perspective view which shows an electric wire with a holder in the 1st modification. It is a schematic sectional drawing which shows an electric wire with a holder same as the above. It is a schematic sectional drawing which shows the electric wire with a holder which concerns on a 2nd modification. It is a schematic sectional drawing which shows the electric wire with a holder which concerns on a 3rd modification.

Hereinafter, the electric wire with a holder according to the embodiment will be described. 1 is a schematic partial cross-sectional view showing the electric wire 20 with a holder, FIG. 2 is a schematic perspective view showing the electric wire 20 with a holder, and FIG. 3 is a schematic exploded view showing the electric wire 20 with a holder.

The holder-attached electric wire 20 connects the terminal of the electric wire 22 to the terminal on the attachment target portion side in a state of being attached to the attachment target portion 10, and includes the electric wire 22 and the holder 30.

In addition, the through-hole 12 and the screw hole 13 are formed in the plate-shaped attachment object part 10 here, and the electric wire 20 with a holder is attached from the one main surface side of the attachment object part 10. Moreover, the fixed terminal 14 (refer FIG.4 and FIG.5) is provided in the fixed position in the other main surface side of the attachment object site | part 10. FIG. Here, the fixed terminal 14 is a round terminal in which a hole is formed, and the terminal 28 at the end of the electric wire 22 is electrically and mechanically connected to the fixed terminal 14 by screwing or the like. In addition, it is preferable that the attachment object site | part 10 is comprised by electroconductive members, such as a metal plate. This is because a shield terminal portion 40 (to be described later) can be electrically connected to the attachment target site 10.

The holder 30 has a role of holding the wire 22 penetrating the through hole 12 while stopping the water between the wire 22 and the through hole 12. Here, as described above, the terminal 28 of the electric wire 22 is connected to the fixed terminal 14 at a fixed position. For this reason, if an error occurs between the position of the through hole 12 and the fixed terminal 14, that is, the position where the electric wire 22 is supported with respect to the attachment target site 10 and the connection position of the terminal 28, the terminal 28 is fixed. It becomes difficult to connect to the terminal 14. The holder-equipped electric wire 20 absorbs an error between the support position of the electric wire 22 with respect to the attachment target portion 10 and the connection position of the terminal 28 while water is stopped between the electric wire 22 and the through hole 12. The present invention relates to a technique that enables easy connection of the terminal 28 to the fixed terminal 14.

The electric wire 22 includes a core wire 23, an insulating coating 24 that covers the periphery of the core wire 23, a shield layer 25 that covers the outer periphery of the insulating coating 24, and a skin 26 that covers the outer periphery of the shield layer 25.

The core wire 23 is formed of a conductive wire such as copper, copper alloy, aluminum, or aluminum alloy. The core wire 23 may be formed by twisting a plurality of strands, or may be configured by a single wire.

The insulating coating 24 is formed by extrusion coating a resin on the core wire 23.

The shield layer 25 is a cylindrical conductive member that covers the periphery of the core wire 23 via an insulating coating 24. Here, the shield layer 25 is a braid in which a metal wire such as a copper wire is knitted in a cylindrical shape. In addition, the shield layer 25 may be configured by a metal tape or the like that covers the periphery of the insulating coating 24.

The outer skin 26 is formed by extruding and coating a resin on the outer periphery of the shield layer 25. Due to the outer skin 26, the outer periphery of the electric wire 22 exhibits a smooth cylindrical outer peripheral surface shape.

At the end of the electric wire 22, the outer skin 26 is peeled off and the shield layer 25 is exposed. The tip of the exposed shield layer (hereinafter referred to as the exposed shield layer 25a) is electrically and mechanically connected to a shield terminal portion 40 described later.

Furthermore, the insulating coating 24 is peeled off at the end of the electric wire 22, and the core wire 23 is exposed at the tip side of the exposed shield layer 25a. The exposed core wire 23 (hereinafter referred to as an exposed core wire 23a) is electrically and mechanically connected to the terminal 28.

The terminal 28 is a member formed by pressing a metal plate material or the like, and includes an electric wire connection portion 28a and a counterpart connection portion 28b. The wire connecting portion 28a is crimped to the exposed core wire 23a. The wire connection portion 28a and the exposed core wire 23a may be connected by welding or the like. The mating side connection part 28b is formed in an annular plate shape. Then, in a state of being superimposed on the fixed terminal 14, a screw is inserted into the hole of the counterpart connection portion 28 b and screwed to the fixed terminal 14 or another nut. Thereby, the other party connection part 28b and the fixed terminal 14 are electrically and mechanically connected.

The holder 30 is configured to be attachable to the attachment target part 10. Further, the holder 30 is formed with a holding hole 34 through which the electric wire 22 can be disposed in a penetrating state, and the electric wire 22 is supported so as to be movable along the extending direction with respect to the holding hole 34. In the holding hole 34, the extending direction of the holding hole 34 and the extending direction of the electric wire 22 are the same. Further, in this supported state, the inner seal portion 35 provided in at least a part of the extending direction of the holding hole 34 contacts the outer periphery of the electric wire 22, thereby sealing between the holding hole 34 and the electric wire 22. .

More specifically, the holder 30 includes a holder main body portion 32 and a shield terminal portion 40.

The holder main body 32 is a member formed of resin or the like, and is formed in a cylindrical shape. Here, the outer shape of the holder main body 32 is a cylindrical shape whose diameter is reduced at the end opposite to the attachment target portion 10, but may be a rectangular parallelepiped shape or the like. A shield terminal portion 40 that can be electrically connected to the attachment target portion 10 is provided at an end portion on the attachment target portion 10 side that is one end portion of the holder main body portion 32.

In the holder main body portion 32, a circular holding hole 34 is formed along the axial direction. The holding holes 34 are open at both axial ends of the holder main body 32. An inner seal portion 35 is formed at a position away from the shield terminal portion 40 in the holding hole 34, here, at an end inner peripheral portion of the holding hole 34 opposite to the attachment target site 10. The inner diameter dimension of the inner seal portion 35 is set to be smaller than the outer diameter dimension of the electric wire 22 within the same range as the outer diameter dimension of the electric wire 22 or within a range in which the electric wire 22 can be moved in its extending direction. Thereby, the electric wire 22 can move in the extending direction in a state where the inner seal portion 35 is in contact with the entire circumferential direction of the outer periphery of the electric wire 22.

Further, a gap forming portion 36 capable of forming a gap on the outer periphery of the electric wire 22 is formed in a portion of the holding hole 34 between the shield terminal portion 40 and the inner seal portion 35. Here, the inner diameter dimension of the gap forming portion 36 is set larger than the inner diameter dimension of the inner seal portion 35. And the electric wire 22 is arrange | positioned in the holding | maintenance hole 34, and the said shield layer 25 and the clearance gap formation part 36 in the state which arrange | positioned the gap formation part 36 in the part which the shield layer 25 of the edge part of the electric wire 22 exposed. A gap is formed between the two. As will be described later, the gap is preferably large enough to allow a wrinkle or a slack portion generated when the exposed shield layer 25a is compressed along the direction in which the electric wire 22 extends.

The shield terminal portion 40 is attached to one end portion of the holder main body portion 32. The shield layer 25 is exposed at a portion of the wire 22 that is disposed in the gap forming portion 36 of the holding hole 34, and an exposed shield layer 25a is provided. The exposed shield layer 25a is a shield terminal. The unit 40 is electrically connected. Further, the shield terminal portion 40 is electrically connected to the attachment target portion 10, preferably mechanically. As a result, the shield layer 25 is electrically connected to the attachment target site 10 via the shield terminal portion 40, and thus the shield layer 25 is grounded. The holder and the attachment target part may be mechanically fixed by a fitting structure of the holder with respect to the attachment target part.

More specifically, the shield terminal portion 40 includes a shield terminal main body portion 42 and a caulking ring portion 46.

The shield terminal main body 42 includes a plate-like portion 43 and a cylindrical portion 44. The shield terminal main body portion 42 is formed by pressing a metal plate material, or by caulking and joining or welding the cylindrical portion 44 to the plate-like portion 43.

The plate-like portion 43 includes a plate shape that can come into contact with one end surface of the holder main body portion 32, here, a larger disc-shaped portion 43 a than the one end surface of the holder main body portion 32. An opening 43ah that communicates with the holding hole 34 is formed in the center of the disc-shaped portion 43a. The opening 43ah may be formed at a position eccentric from the center of the disc-shaped portion 43a. Moreover, the cylinder part 44 is formed so that it may protrude in the one end surface side from opening 43ah of the disk-shaped part 43a. The cylindrical portion 44 is formed in a cylindrical shape that is large enough to cover the exposed shield layer 25a. Then, with the end portion of the exposed shield layer 25a covered on the cylindrical portion 44, the caulking ring portion 46 formed of metal or the like is covered on the outer periphery, and the caulking ring portion 46 is caulked to expose the exposed shield layer 25a. Are electrically and mechanically connected to the shield terminal 40.

The shield terminal portion 40 is combined with the holder main body portion 32 by, for example, press-fitting the cylindrical portion 44 and the caulking ring portion 46 into the holding hole 34 of the holder main body portion 32. The shield terminal portion and the holder main body portion may be maintained in a combined state by an adhesive, screwing, or the like. In addition, the shield terminal part and the holder main body part may be integrally formed by molding the holder main body part using the shield terminal part as an insert part. I will explain it.

Further, an attachment piece 43b is formed so as to extend outward from a part of the outer periphery of the disc-like portion 43a. A screw insertion hole 43bh is formed in the attachment piece 43b. The positional relationship between the opening 43ah and the screw insertion hole 43bh corresponds to the positional relationship between the through hole 12 and the screw hole 13 of the attachment target portion 10.

Then, the screw 30 is inserted into the screw insertion hole 43bh and screwed into the screw hole 13 of the attachment target portion 10, whereby the holder 30 is maintained in a state of being attached to the attachment target portion 10.

An example of a method for manufacturing the holder-attached electric wire 20 will be described.

First, the electric wire 22 having the exposed shield layer 25a and the exposed core wire 23a exposed at the end is prepared. Then, the end portion of the electric wire 22 is passed through the holding hole 34 of the holder 30, the caulking ring portion 46, and the opening 43ah of the shield terminal main body portion 42 (see FIG. 3).

Then, the terminal 28 is connected to the exposed core wire 23a. Before or after this, the end portion of the exposed shield layer 25a is covered with the cylindrical portion 44 of the shield terminal main body portion 42, and the caulking ring portion 46 is covered with the outer periphery, and the caulking ring portion 46 is caulked and deformed. The length dimension of the exposed shield layer 25a is longer than the length dimension of the cylindrical portion 44. Therefore, the end portions of the shield terminal portion 40 and the outer skin 26 in a state where the exposed shield layer 25a is connected to the shield terminal portion 40. The exposed shield layer 25a exists between the two.

In the initial state of the shield terminal portion 40, the terminal 28 is located outside one end side of the holding hole 34 of the holder 30. Further, the end portion of the outer skin 26 is positioned at or before or after the boundary between the inner seal portion 35 and the gap forming portion 36, and the exposed shield layer 25 a has a boundary between the inner seal portion 35 and the gap forming portion 36. From the front and rear positions, the gap passes through the gap forming portion 36 and reaches the vicinity of the outer opening of the gap forming portion 36, where it is connected to the shield terminal portion 40. Therefore, in the gap forming portion 36, the exposed shield layer 25a extends in a cylindrical shape. The gap between the insulating coating 24 and the gap forming portion 36 is sufficiently larger than the thickness of the exposed shield layer 25a. Therefore, the exposed shield layer 25a is wrinkled between the insulating coating 24 and the gap forming portion 36. It can cause sagging.

In this state, the exposed shield layer 25a extends in a cylindrical shape between the outer sheath 26 of the electric wire 22 in the inner seal portion 35 and the shield terminal portion 40. For this reason, the electric wire 22 is difficult to relatively move to the other end side of the holder 30 (opposite side of the attachment target portion 10). However, between the outer sheath 26 of the electric wire 22 in the inner seal portion 35 and the shield terminal portion 40, the exposed shield layer 25 a uses the gap in the gap forming portion 36 to cause wrinkles or sagging. , And can be deformed so as to shrink along the extending direction. Thereby, the electric wire 22 can be relatively moved to one end side of the holder 30 (attachment target site 10 side). Accordingly, the terminal 28 can be moved to a position away from the holder 30 so that the exposed core wire 23 a and the insulating coating 24 portion in front of the exposed core wire 23 a are extended from one end side of the holder 30. Of course, even in this state, since the inner seal portion 35 is in contact with the outer skin 26 in the entire circumferential direction of the outer skin 26, the gap between the electric wire 22 and the holding hole 34 is suppressed, and water is stopped between them. It can be performed.

4 and 5 show a state in which the electric wire 20 with the holder is attached to the attachment target portion 10 and the terminal 28 is connected to the fixed terminal 14. 4 shows a state in which the fixed terminal 14 is relatively close to the attachment target part 10, and FIG. 5 shows a state in which the fixed terminal 14 is relatively far from the attachment target part 10. Yes.

As shown in FIG. 4, when the fixed terminal 14 is relatively close to the attachment target portion 10, the shield terminal portion 40 of the holder 30 is fixed to the attachment target portion 10 with screws, etc. The terminal 28 is disposed near the fixed terminal 14 in a state where 30 is attached to the attachment target portion 10. For this reason, the terminal 28 can be connected to the fixed terminal 14 while being close to the initial state.

On the other hand, when the fixed terminal 14 is relatively far from the attachment target part 10, the terminal 28 is separated from the fixed terminal 14 with the holder 30 attached to the attachment target part 10. Therefore, the exposed shield layer 25a is deformed so as to shrink in the extending direction between the inner seal portion 35 and the shield terminal portion 40 using the gap in the gap forming portion 36, and the electric wire 22 is held in the holding hole 34. To one end side (attachment target site 10 side). Thereby, the terminal 28 can be largely pulled out from the holder 30 and connected to the fixed terminal 14. Further, if the terminal 28 is pulled out largely, the insulating coating 24 part is also pulled out from the holder 30. Therefore, by bending the insulating coating 24, the terminal 28 can be moved in the vertical and horizontal directions perpendicular to the axial direction of the electric wire 22. Can be moved. For this reason, even when the fixed terminal 14 is displaced in the vertical and horizontal directions with respect to the axis of the through hole 12, the terminal 28 can be easily connected to the fixed terminal 14.

From the above point of view, the initial positional relationship between the holder 30 and the terminal 28 is that the holder 30 and the terminal 28 are the most in consideration of design errors between the through hole 12 and the fixed terminal 14 due to manufacturing errors. It is preferable to be determined assuming a state of being arranged nearby. However, in the initial state, the exposed shield layer 25a is deformed so as to be contracted to the middle, and the end portion of the insulating coating 24 of the electric wire 22 is disposed at the intermediate position in the extending direction of the gap forming portion 36 from the inner seal portion 35. You may do it. In this case, it is possible to adjust the position of the terminal 28 by moving the electric wires 22 to both sides in the extending direction regardless of whether the terminal 28 and the fixed terminal 14 are close or far from each other.

According to the holder-equipped electric wire 20 configured as described above, the inner seal portion 35 provided in at least a part of the extending direction of the holding hole 34 is in contact with the outer periphery of the electric wire 22. Water stoppage between 30 is achieved. Further, since the electric wire 22 is supported so as to be movable along the extending direction with respect to the holding hole 34, a position where the electric wire 22 is supported by attaching the holder 30 to the attachment target portion 10, and the electric wire When an error occurs between the terminal 28 at the end of the wire 22 and the like, the error can be easily absorbed by moving the electric wire 22 along the extending direction.

Further, the shield layer 25 is exposed in the holding hole 34, particularly inside the inner seal portion 35, and is connected to the shield terminal portion 40. The shield layer 25 can be grounded by electrically connecting the shield terminal portion 40 to the attachment target portion 10. For this reason, the shield layer 25 of the electric wire 22 can be electrically connected to the attachment target site 10 and grounded while water is stopped in the holder 30.

Moreover, when the electric wire 22 is moved along the extending direction with respect to the holder 30 in a state where the shield layer 25 and the shield terminal portion 40 are electrically connected in the holding hole 34, an excess portion of the shield layer 25 Can occur. Therefore, by providing a gap forming portion 36 that can form a gap in the outer peripheral doctor of the electric wire 22 between the shield terminal portion 40 and the inner seal portion 35 in the holding hole 34, an excess portion of the shield layer 25 is obtained. It can be stored in the gap as wrinkles or slack. Thereby, the electric wire 22 can be easily moved with respect to the holder 30.

{Modifications}
FIG. 6 is a schematic perspective view showing the holder-attached electric wire 120 in the first modification, and FIG. 7 is a schematic cross-sectional view showing the holder-attached electric wire 120.

In the first modified example, an intervening seal portion 170 is added to the holder-equipped electric wire 20 in the above embodiment. The interposed seal part 170 is configured to be interposed between the holder 30 and the attachment target site 10.

More specifically, the intervening seal portion 170 is a member formed of an elastic member such as rubber, and is formed in a plate shape that extends larger than one end surface (surface on the attachment target site 10 side) of the holder 30. . Here, the intervening seal part 170 is formed in a disc shape. An opening 171 h corresponding to the holding hole 34 and a screw insertion hole 172 h corresponding to the screw insertion hole 43 bh are formed in the intervening seal portion 170.

And the interposed seal part 170 is interposed between the one end surface of the holder 30 and the attachment target site 10, and preferably, the interposed seal part 170 is compressed. Thereby, the intervening seal part 170 can further improve the water blocking property around the electric wire 22 between the one end surface of the holder 30 and the attachment target portion 10.

FIG. 8 is a schematic sectional view showing the holder-attached electric wire 220 according to the second modification.

In the second modification, the holder main body 232 corresponding to the holder main body 32 is molded using the shield terminal 40 as an insert part. In this example, the shield terminal portion 40 and the holder main body portion 232 are maintained in a more reliably integrated state.

In this example, when the holder body 232 is molded, it is necessary to connect the exposed shield layer 25a of the electric wire 22 to the shield terminal portion 40. Therefore, the electric wire 22 is also arranged in the mold. It is necessary to keep it. At this time, in order to suppress the coalescence of the electric wire 22 and the holder main body portion 232 and form the gap forming portion 36, a portion of the electric wire 22 disposed in the holder main body portion 232 is covered with the cylindrical member 280. Yes. One end portion 281 of the cylindrical member 280 is set to an inner diameter size comparable to the inner diameter size of the gap forming portion 36, and the other end portion 282 of the cylindrical member 280 is equal to an inner diameter dimension equal to the inner diameter size of the inner seal portion 35. Dimension is formed. For this reason, when the cylindrical member 280 is placed on the electric wire 22 and the electric wire 22 is disposed in the mold together with the shield terminal portion 40 and the holder main body portion 232 is molded, the holder main body portion 232 is formed. A cylindrical member 280 is interposed between the wire 22 and the electric wire 22, the gap forming portion 36 is formed on the one end portion 281 side, and the inner seal portion 35 is formed on the other end portion 282.

According to this modified example, the holder main body 232 and the shield terminal 40 are more securely in close contact with each other, and the combined state is more reliably maintained, and the water stoppage between them is improved.

In addition, in this modification, although the example provided with the interposition seal part 170 demonstrated in the 1st modification is shown, the interposition seal part 170 may be abbreviate | omitted.

FIG. 9 is a schematic cross-sectional view showing a holder-attached electric wire 320 according to a third modification.

In the holder-equipped electric wire 320, a holding hole 334 corresponding to the holding hole 34 is formed in the holder main body portion 332 corresponding to the holder main body portion 32. The other end of the holding hole 334 is formed with an inner diameter dimension that is larger (slightly larger) than the outer diameter dimension of the electric wire 22. Further, a groove along the circumferential direction is formed in this portion, and an annular elastic member 390 (O-ring or the like) formed of an elastic member such as rubber is disposed here.

The inner diameter dimension of the annular elastic member 390 is set to be equal to or smaller than the outer diameter dimension of the electric wire 22. And the annular elastic member 390 contacts the outer periphery of the said electric wire 22 in the whole circumferential direction of the electric wire 22 in the state which penetrated the electric wire 22 to the holding hole 334. In this modification, the portion where the annular elastic member 390 is disposed is an inner seal portion 335 corresponding to the inner seal portion 35. The annular elastic member 390 ensures more reliable water stop between the electric wire 22 and the holding hole 334.

In the holder-equipped electric wire 320, a holding member 395 for reducing the diameter of the holding hole 334 is provided on the outer periphery of the holder main body portion 332 at a position corresponding to the inner seal portion 335. The holder main body 332 is formed of a material (for example, an elastomer or the like) or a shape (particularly a shape having a small thickness in the circumferential direction) that can be deformed when the holder main body 332 is restrained by the restraining member 395.

The restraining member 395 is a ring-shaped member or a C-shaped member that can be plastically deformed, such as copper, aluminum, and stainless steel. In the initial state, the hold-down member 395 has an inner diameter dimension that can be fitted onto a portion of the holder main body portion 332 corresponding to the inner seal portion 335. In this state, the holder main body portion 332 is also restrained to the inner peripheral side by being plastically deformed so as to reduce the diameter of the restraining member 395, so that the inner seal portion 335 of the holding hole 334 is deformed. The portion provided with is reduced in diameter and the annular elastic member 390 is compressed and deformed.

Thereby, the inner seal portion 335 (annular elastic member 390) comes into contact with the outer periphery of the electric wire 22 in a state of being suppressed with a stronger force, and water can be stopped more reliably.

In addition, as a timing which carries out the diameter reduction deformation | transformation of the said suppression member 395, the following two aspects can be considered, for example.

First, the holding member 395 is deformed in a reduced diameter in the initial state. In this case, when the holder-attached electric wire 320 is attached to the attachment target portion 10, it is preferable to reduce the diameter of the holding member 395 so that the electric wire 22 can be moved in the extending direction.

Second, in the initial state, the restraining member 395 is not deformed in a reduced diameter, and the restraining member 395 is deformed in a reduced diameter after the holder-attached electric wire 320 is attached to the attachment target portion 10. In this case, it is preferable to greatly reduce the diameter of the restraining member 395 so that the electric wire 22 cannot be moved in the extending direction. In addition, when this 3rd modification and a 1st modification are combined, it is preferable to carry out the diameter reduction deformation | transformation of the suppression member 395 in the state which the interposition seal | sticker part 170 was compressively deformed.

In addition, as the restraining member, in addition to the restraining member 395 using plastic deformation, a pair of semi-annular parts formed of a resin or the like are combined by a lock structure or the like so that the holder 30 is tightened and restrained. Good.

In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts. For example, in the above embodiment, the restraining member 395 described in the third modification may be provided on the outer periphery of the portion corresponding to the inner seal portion 35 of the holder 30.

Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Attachment object part 12 Through-hole 13 Screw hole 14 Fixed terminal 20,120,220,320 Electric wire with a holder 22 Electric wire 23 Core wire 23a Exposed core wire 24 Insulation coating 25 Shield layer 25a Exposed shield layer 26 Outer skin 28 Terminal 30

Holder

32, 232 332

Holder body part

34, 334

Holding hole

35, 335 Inner seal part 36 Gap forming part 40 Shield terminal part 43b Mounting piece 43bh, 172h Screw insertion hole 170 Seal part 390 Annular elastic member 395 Holding member

Claims

An electric wire with a terminal attached to the end;
A holding hole that is configured to be attachable to an attachment target portion and that can be disposed in a penetrating state is formed, and an inner seal portion provided in at least a part of the extending direction of the holding hole A holder that is supported so as to be movable along the extending direction of the electric wire with respect to the holding hole in a state of being in contact with the outer periphery of the electric wire;
An electric wire with a holder.
The electric wire with a holder according to claim 1,
The electric wire includes a core wire, an insulating coating that covers the periphery of the core wire, a shield layer that covers an outer periphery of the insulating coating, and a skin that covers an outer periphery of the shield layer,
The holder includes a holder main body portion in which the holding hole is formed, and a shield terminal portion that is provided on the attachment target portion side with respect to the holder main body portion and can be electrically connected to the attachment target portion.
An electric wire with a holder, wherein the shield layer is exposed in the holding hole and is electrically connected to the shield terminal portion.
The electric wire with a holder according to claim 2,
The inner seal portion is provided in a position away from the shield terminal portion in the holding hole,
The said holding hole is an electric wire with a holder containing the clearance gap formation part which can form a clearance gap in the outer periphery of the said electric wire between the said shield terminal part and the said inner side seal part.
The electric wire with a holder according to any one of claims 1 to 3,
An electric wire with a holder, further comprising an interposed seal portion that can be interposed between the holder and the attachment target site.
The electric wire with a holder according to any one of claims 1 to 4,
The said inner side seal part is an electric wire with a holder provided in the said holding hole, and is formed of the cyclic | annular elastic member which can contact the outer periphery of the said electric wire.
The electric wire with a holder according to any one of claims 1 to 5,
An electric wire with a holder, wherein a holding member for reducing the diameter of the holding hole is provided on an outer periphery of a position corresponding to the inner seal portion of the holder.