JP3010425B2 - Wire shield structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield structure of an electric wire constructed so as to obtain the same electromagnetic shield (hereinafter simply referred to as "shield") effect without using a shield wire, as in the case of using a shield wire. In particular, the present invention relates to a shield structure of an electric wire which is suitable for use in a device requiring a reliable shielding performance, such as a control device mounted on an automobile, and requiring a reduction in cost and an improvement in maintainability.

[0002]

2. Description of the Related Art Various types of electronic equipment including a CPU are mounted on a current automobile, and a shielded wire is used for transmitting and receiving a high-frequency signal. However, the shield wire is expensive, and when wiring, the ground wire of the shield braided wire is required together with the wiring of the core wire, so that the wiring work is troublesome. From such a viewpoint, a wire shield structure has been adopted in which wiring is performed using a normal wire and the wire is shielded to obtain the same shielding effect as when a shield wire is used. An example of the shield structure of the electric wire will be described with reference to FIGS.

[0003] As shown in FIG.
1 is a box 42 containing electronic equipment such as a CPU,
A coupler 44 fixed to the side surface of the box 42 by screws 43, a corrugated tube 46 covering an electric wire 45,
The corrugated tube 46 is constituted by a corrugated retainer 47 for locking the corrugated tube 46 to the coupler 44.

[0004] As shown in FIG. 13, the coupler 44 is composed of a flange portion 51 and a cylindrical portion 52. The cylindrical portion 52 has a fitting portion 52 a fitted into the box 42 and a box 42.
It is divided into a part protruding outside. A locking groove 53 for locking the corrugated retainer 47 and a locking groove 54 for locking the corrugated tube 46 are formed in a portion protruding outside the box 42.

[0005] As shown in FIG.
Are two half-split members 47a and 47b formed in a gutter shape.
And locked by a locking portion 55 to form a cylindrical shape. At one end of the corrugated retainer 47, an annular locking projection 56 is provided.
When it is assembled to the device, it is locked in the locking groove 53. On the inner surface of the other end of the corrugated retainer 47, a locking projection 57 that locks with the locking groove 54 is formed as shown on the right side of FIG.

Next, a procedure for assembling the electric wire shield structure 41 will be described. First, as shown in FIG. 13, the fitting portion 52 a of the coupler 44 is inserted into a mounting opening 42 a formed in the box 42, and is tightened and fixed with the mounting screw 43. At this time, as shown in FIG. 12, an annular waterproof packing 62 made of a rubber material or the like is fitted in the annular groove 61 formed in the fitting portion 52a.
2, the waterproof packing 62 is attached to the mounting opening 4
The inside of the box 42 becomes watertight by contacting the opening edge of 2a.

Further, as shown in FIG. 12, one end of a corrugated tube 46 covering an electric wire 45 is covered by a locking groove 54 formed in a cylindrical portion 52, and the end of the electric wire 45 connected to a crimp terminal 45a is It is positioned in box 42.
Then, the half-split member 47 is covered so as to cover the cylindrical portion 52.
a and 47b are put on and are inseparably locked by the locking part 55, and the cylindrical corrugated retainer 47 is assembled so as to cover the entire cylindrical part 52 as shown in FIG.
In this state, the locking projection 56 is locked in the locking groove 53, so that the corrugated retainer 47 cannot be pulled out.

[0008] The coupler 44, the corrugated retainer 47
Is molded of synthetic resin, but the entire surface is plated with metal. The corrugated tube 46 is also formed into a flexible cylindrical body using a synthetic resin, and the surface thereof is plated with metal. Therefore, the corrugated tube 46, the corrugated retainer 47, the coupler 44, and the box 42 are electrically connected to each other by the corrugated tube 46 being retained in the retaining groove 54 and being tightened by covering the corrugated retainer 47.
Will be shielded.

[0009]

However, in the electric wire shield structure 41, if there is a backlash between the coupler 44 and the corrugated retainer 47, the electrical path from the corrugated tube 46 to the box 42 becomes defective. And the wire 45 becomes defective in shielding. Further, since the corrugated retainer 47 rotates around the cylindrical portion 52, the metal plating may be peeled off by vibration,
In this case, the shield is also defective.

Further, a locking projection 56 is formed at one end of the inner surface of the corrugated retainer 47, and a locking projection 57 is formed at the other end, as can be understood from FIG. From the appearance of the corrugated retainer 47, it is difficult to determine the formation positions of the locking projections 56 and 57. Therefore,
When assembling the corrugated retainer 47, it is necessary to visually check the formed end of the locking projection 56 in a half-split state, and to align the formed end of the locking projection 56 with the flange portion 51 before assembling. Rather, the work of assembling the corrugated retainer 47 was troublesome.

An object of the present invention is to provide a shield structure of an electric wire configured to exhibit a shielding effect without using a shielded wire and to prevent a shield failure due to vibration or the like. Another object of the present invention is to provide a shield structure of an electric wire configured to improve workability at the time of attachment to a desired device.

[0012]

SUMMARY OF THE INVENTION The object of the present invention is to provide a corrugated tube which covers an electric wire and has a conductive plating on a surface thereof, the above-mentioned corrugated tube is locked at one end, and the electric wire is inserted inside the corrugated tube. In a wire shield structure comprising a coupler having a conductive plating on the surface to be made, and a corrugated retainer having a conductive plating on the surface for pressing the corrugated tube against the coupler, one end of the corrugated retainer and the coupler are provided. And a pair of locking means for locking the corrugated retainer to the coupler at one end thereof.

The surface of each of the members constituting the shield structure of the electric wire, that is, the corrugated tube for covering the electric wire, the coupler for inserting the electric wire, and the corrugating retainer for pressing the corrugated tube against the coupler, are all subjected to conductive plating. . A locking claw is provided at one end of the corrugated retainer, and a locking portion for elastically locking the locking claw is provided at one end of the coupler.

Therefore, the electric wire is inserted into the coupler,
The corrugated tube is locked to one end of the coupler, and pressed against the coupler with a corrugated retainer, and the locking claw is locked to the locking portion. Thereby, since the corrugated tube, the corrugated retainer, and the coupler are electrically connected by the conductive plating, it is possible to prevent a contact failure or the like. Then, the locking between the locking claw and the locking portion is not affected by vibration or the like, and the shielding action can be further ensured.

The coupler comprises a cylindrical portion formed in a cylindrical shape and a flange formed on the outer surface of the cylindrical portion, and the coupler is opposed to the side surface of the flange around the cylindrical portion. In addition, a pair of locking portions are protruded, and a pair of locking claws facing one end of the corrugated retainer are protruded. Further, the locking portion includes a locking step portion that locks the locking claw, and the locking claw includes a wedge portion that is directed in a rotation direction of the corrugate retainer. Therefore, the locking claw is locked in the locking portion by the rotation of the corrugated retainer, and the wedge portion of the locking claw and the locking step portion of the locking portion mesh with each other, so that a more reliable shield can be obtained. it can.

Also, the corrugated retainer is provided with a rotation preventing projection together with the locking portion, and by positioning this on the flange side, the mounting direction of the corrugated retainer can be specified. Efficiency can be improved.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a shield structure of an electric wire to which the present invention is applied will be described below with reference to FIGS. FIG. 1 is a sectional view showing a first embodiment of a shield structure of an electric wire of the present invention, FIG. 2 is a perspective view showing a fixed state of a coupler in FIG. 1, and FIG. 3 is a perspective view showing a structure of a corrugated retainer in FIG. FIG. 4 is a perspective view showing an assembling process of the corrugated retainer in FIG. 1, and FIGS. 5 and 6 are enlarged cross-sectional views showing a retaining action of a retaining claw of the corrugated retainer and a retaining portion of the coupler.

The shield structure 1 of an electric wire (hereinafter simply referred to as a shield structure) 1 in the present embodiment has the same operation as the case of using a shielded wire without using a shielded wire, that is, the case of transmitting a high-frequency signal. To prevent oscillation,
It exerts a shielding effect such as preventing the influence of noise. As shown in FIG. 1, a shield structure 1 includes a coupler 3 fixed to a box 2 containing a CPU or the like.
And a corrugated retainer 5 for fixing the corrugated tube 4 to the coupler 3 in a press-contact state, and shields an electric wire 6 wired in the box 2.

As shown in FIG. 2, the coupler 3 is formed by integrally molding a hard resin, and is formed on a cylindrical tubular portion 11 having locking grooves 15 and 16 and on an outer surface of the tubular portion 11. And a flange portion 12 formed. A pair of locking portions 13 are formed on the side surface of the flange portion 12 so as to face each other with the cylindrical portion 11 as a center.
The locking portion 13 and a locking claw 22, which will be described later, have a pair structure, and constitute locking means X according to the present invention. The surface of the coupler 3 is plated with a conductive material, that is, a metal plating.

The box 2 is formed by aluminum die-casting or the like having a shielding effect.
The flange 12 is fixed to the box 2 with mounting screws 14 so that the entire one side of the flange 12 is in close contact with the side of the box 2. Therefore, since the surface of the flange 12 is metal-plated, the box 2 and the coupler 3 are electrically connected.

The cylindrical portion 11 has a fitting portion 11a fitted into the box 2 as shown in FIG.
2 and a portion exposed outside the box 2. An annular locking groove 15 is formed near the flange 12 on the outer surface of the cylindrical portion 11 so as to lock the corrugated retainer 5 described below so as not to be able to escape. Further, an annular locking groove 16 is formed at the rear end of the cylindrical portion 11 so as to lock the corrugated tube 4 described below so as not to come out.

The flange portion 12 is formed in a flat plate shape, and is screwed to the box 2 using screw holes formed at both ends facing each other. The pair of locking portions 13 formed on the flange portion 12 is for fixing to the flange portion 12 so as not to come out of the corrugated retainer 5 described later and to have conductivity.

As shown in FIG. 2 in an enlarged manner, the pair of locking portions 13 are provided so as to protrude from the surface of the flange portion 12.
Its vertical cross section is formed in an L-shape. A locking step 13a is formed on a surface facing the flange 12 so as to lock a locking claw 22, which will be described later, so as not to come out.

As shown in FIG. 1, the corrugated tube 4 is formed by integrally molding a synthetic resin, and is formed in a flexible cylindrical shape as a whole. The entire surface of the outer side surface and the inner side surface of the corrugated tube 4 is plated with Ni on a Cu base. This corrugated tube 4
When the electric wire 6 is inserted through the
A shield effect of -40 dB or more can be obtained in the band z. One end of the corrugated tube 4 is fixed to the locking groove 16 of the tubular portion 11 by a corrugated retainer 5 described later, and is electrically connected so as to obtain a shielding effect by the plating.

As shown in FIG. 3, the corrugated retainer 5
A combination of a gutter-like half-split member 5a, 5b molded from hard resin and having a conductive plating on the surface,
1 to form a cylindrical shape. A pair of locking claws 2 is provided at one end of the corrugated retainer 5, that is, at the edge near the flange portion 12 when assembled to the coupler 3.
2 are protrudingly provided, and a locking projection 23 is provided on the inner side surface of the edge.
Is provided.

When the locking claw 22 is locked to the locking portion 13 provided on the flange portion 12, the corrugated retainer 5 is fixed to the coupler 3 and the conductivity is prevented from being lowered by vibration or the like. It is. The locking projection 23 has a semicircular shape when the corrugated retainer 5 is divided into half, but forms an annular projection when assembled as shown in FIG. Then, when assembled to the coupler 3, it is fitted into the locking groove 15 to prevent the positioning to the coupler 3 and the detachment. Further, the locking claw 22 has a wedge portion 22a formed in the rotation direction A, that is, in the rotation direction when the corrugated retainer 5 is rotated.

Next, the assembly of the shield structure 1 will be described. First, the waterproof packing 18 is fitted into the fitting groove 17 formed on the outer surface of the fitting portion 11a of the coupler 3, and then the fitting portion 11a of the coupler 3 is pressed into the mounting opening 2a formed in the box 2. Then, the flange portion 12 is press-fitted until the flange portion 12 comes into surface contact with the side surface of the box 2.
4 fastens and is fixed to the box 2. As a result,
The entire coupler 3 is integrally fixed to the box 2, and the inside of the box 2 is made watertight by pressing the waterproof packing 18 against the opening edge of the mounting opening 2 a.

Next, the end of the corrugated tube 4 in the form of a bellows covering the electric wire 6 is formed in the cylindrical portion 11 by the locking groove 1.
Put on 6. At this time, the end of the electric wire 6 to which the crimp terminal 6a is connected passes through the cylindrical portion 11 and is wired into the box 2. Note that the corrugated tube 4 is temporarily locked by being fitted over the locking groove 16 by covering the locking groove 16.

Therefore, the corrugated retainer 5 in a half-split state is
By covering the cylindrical portion 11 with a and 5b and being formed into a cylindrical shape by being locked by the locking portion 21, the corrugated tube 4 is locked so as not to come out. That is, as shown in FIG. 1, by covering the entire cylindrical portion 11 with the corrugated retainer 5, the annular projections 24 formed at regular intervals on the inner surface of the corrugated retainer 5 bite into the locking groove 16 via the corrugated tube 4. . Since the engagement between the annular protrusion 24 and the locking groove 16 is performed in multiple layers, the corrugated tube 4 is locked to the cylindrical portion 11 so as not to come out.

Next, as shown in FIG. 4, the corrugated retainer 5 is rotated in the direction of arrow A to lock the locking claw 22 on the locking portion 13. That is, when the corrugated retainer 5 is rotated as shown in FIGS. 5 and 6, the locking claw 22 shown by the solid line moves in the direction of the arrow A, and moves downward in the locking portion 13 as shown by the imaginary line. Get in. Then, the locking portion 1 is formed by the wedge portion 22a.
3 is pushed upward, and as shown in FIG.
Is engaged with the locking step 13a, the locking portion 13 returns to the original shape. Since the locking portion 13 has elasticity, a click feeling is obtained at the time of engagement, and the engagement between the wedge portion 22a and the locking step 13a, that is, the locking claw 22 is properly attached to the locking portion 13. It can be sensed that the locking has been performed.

When the assembly of the shield structure 1 is completed in this manner, the corrugated tube 4 covering the electric wire 6
Is connected to the box 2 via the coupler 3. Moreover, the annular projection 24 formed on the corrugated retainer 5 presses the end of the corrugated tube 4 by surface contact, and
The corrugated tube 4 is also pressed against the locking portion 13 by surface contact, so that the corrugated tube 4 can be reliably grounded.

The locking claw 22 and the locking portion 13 are in elastic contact with each other in a state where the wedge portion 22a is locked to the locking step portion 13a. Therefore, the corrugated retainer 5 does not rattle in any of the axial direction and the rotating direction and does not come off due to vibration or the like.
Can be more reliably grounded. For this reason,
For example, even if it is applied to an automobile that vibrates or shakes,
Is reliably performed, and inconvenience that hinders traveling can be prevented.

Further, since the diameter of the corrugated tube 4 is larger than the diameter of the electric wire 6, the diameter of the electric wire 6 and the number of wires are not limited, and design freedom such as use of a larger or smaller diameter electric wire is possible. The degree improves. Furthermore, since the electric wire 6 is protected by the corrugated tube 4, the safety of the device is improved. Further, the connection work of the electric wires 6 is performed safely and easily, and the workability can be improved. Furthermore, since the locking claw 22 is always provided on the locking protrusion 23 side, when the corrugated retainer 5 is mounted, the positioning in the mounting direction is facilitated, and the efficiency of the mounting operation can be improved.

Next, a second embodiment of the electric wire shield structure to which the present invention is applied will be described with reference to FIGS.
The difference between the present embodiment and the first embodiment is that the configurations of the locking portion 13 and the locking claw 22 as the locking means are changed. Therefore, members performing the same operations as in the first embodiment are denoted by the same reference numerals. 7 is a perspective view showing a fixed state of the coupler, FIG. 8 is a perspective view showing a structure of the corrugated retainer, FIG. 9 is a perspective view showing an assembled state of the corrugated retainer, and FIG. It is a perspective view showing an example.

In this embodiment, the flange 12 is not provided with a locking portion. Instead, as shown in FIG. 7, the flange 12 is moved from the base of the tubular portion 11 toward the outer edge of the flange 12. A locking groove 31 is formed on the flange 12. On the other hand, the corrugated retainer 5 is not provided with a locking claw, and instead, for example, at the end of the half-split member 5a, that is, at the end where the locking projection 23 is formed on the inside, FIG.
As shown in FIG. 7, a rotation preventing projection 32 is provided. The locking groove 31 and the rotation preventing projection 32 form a pair and constitute locking means X according to the present invention. Anti-rotation protrusion 32
Has both the function of preventing the rotation of the corrugated retainer 5 and the function of indicating the mounting direction of the corrugated retainer 5, and therefore is always provided at the end where the locking projection 23 is formed.

Next, the assembly of the shield structure 1 will be described. Also in this embodiment, the attachment of the coupler 3 to the box 2 is performed in the same manner as in the first embodiment. More specifically, the entire coupler 3 is integrally fixed to the box 2 by press-fitting the flange portion 12 until the flange portion 12 comes into surface contact with the side surface of the box 2 and tightening and fixing the flange portion 12 to the box 2 with the mounting screw 14. The inside of the box 2 becomes watertight by pressing against the opening edge of the opening 2a.

Next, the end of the corrugated tube 4 in the form of a bellows covered with the electric wire 6 is covered with a locking groove 16 formed in the cylindrical portion 11, and the end of the electric wire 6 to which the crimp terminal 6a is connected is formed by a tube. The wire passes through the inside of the box 11 and is wired in the box 2.
Note that the corrugated tube 4 is temporarily locked by being fitted over the locking groove 16 by covering the locking groove 16.

In this state, the cylindrical portion 11 is covered with the half-split members 5a and 5b. In this embodiment, first, the rotation preventing projection 32 provided on the corrugated retainer 5a is fitted into the locking groove 31. Then, the half-split member 5a is directly
In the state where the cylindrical member 11 is applied, the other half member 5b is applied to the side surface on the opposite side of the cylindrical portion 11, and the locking portion 21 is locked to be integrated into a cylindrical shape.

That is, as shown in FIG. 9, by covering the entire cylindrical portion 11 with the corrugated retainer 5, the annular projections 24 formed at regular intervals on the inner surface of the corrugated retainer 5 are engaged with the locking groove via the corrugated tube 4. Dig into 16. Since the engagement between the annular projection 24 and the locking groove 16 is performed at a plurality of locations, the corrugated tube 4 is
It is locked to 1 so that it cannot escape.

Therefore, also in the present embodiment, the corrugated retainer 5 does not rattle in either the axial direction or the rotating direction, and does not come off due to vibration or the like.
The corrugated tube 4 can be grounded more reliably. For this reason, even when the present invention is applied to, for example, an automobile which vibrates or shakes violently, the shield of the electric wire 6 is reliably performed, and it is possible to prevent inconvenience that hinders traveling. Also, since the rotation preventing projection 32 is provided on the locking projection 23 side,
When placing the half-split member 5a on the tubular portion 11, there is no need to turn the half-split member 5a upside down and check the assembly direction,
Workability is improved.

In the present embodiment, the rotation preventing projection 32 has a protruding shape, and has a very simple structure. Therefore, the structure of the mold for forming the half-split member 5a can be simplified, and the production cost can be reduced. In addition, since the shape of the rotation preventing protrusion 32 is simple, the locking recess 3 is replaced with the locking recess 3 as shown in FIG.
It may be 3. In this case as well, it is possible to prevent the backlash of the corrugated retainer 5 and to reliably shield the electric wire 6 in the same manner as described above, and it is possible to efficiently perform the assembling work of the corrugated retainer 5.

Next, a third embodiment of the electric wire shield structure to which the present invention is applied will be described with reference to FIG. In addition,
The present embodiment relates to a configuration in which a corrugated retainer is assembled to a waterproof coupler.
Members that perform the same operations as in the second embodiment are denoted by the same reference numerals. The waterproof coupler 35 is fixed to the box 2 in a so-called bowl-down form,
A tubular portion (not shown) for assembling the corrugated retainer 5 or the like is provided therein, so that the electric wire 6 can be inserted and the corrugated tube 4 can be locked.
A locking groove 36 is formed on the disc-shaped outer surface of the waterproof coupler 35 from the outer edge toward the center. The locking groove 36 and the rotation preventing projection 32 form a pair to form the locking means X according to the present invention.

When assembling the corrugated retainer 5, the anti-rotation projection 32 provided on the half-split member 5a is inserted into the locking groove 36, and the half-split member is attached to the cylindrical part from the opposite side in a state of being applied so as to cover the cylindrical part. 5b. And the locking part 21
And integrated into a cylindrical shape, and assembled to the waterproof coupler 35 as shown in FIG. Also in this embodiment, similarly to the first and second embodiments, the shield of the electric wire 6 can be reliably performed, and the work of assembling the corrugated retainer 5 can be performed efficiently.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. That is, in the second and third embodiments, one locking groove 31, 36 is formed, but two locking grooves may be formed at 180 ° intervals, for example. In this case, the rotation preventing projection 32 is also provided on the half-split member 5b. Also, a plurality of locking recesses 33 may be provided as described above.

[0045]

As described above, in the electric wire shield structure according to the present invention, at one end of the corrugated retainer, a locking claw which is integrally rotated with the rotation of the corrugated retainer is provided, and the engagement of the coupler is provided. A locking portion for elastically locking the locking claw is provided at a position corresponding to the rotation path of the locking claw. Then, the electric wire is inserted into the corrugated tube that has been subjected to conductive plating, etc., and one end of the corrugated tube is conductively engaged with the outer surface of the coupler through which the electric wire is inserted, and the coupler is pressed by a corrugated retainer that covers the side surface of the coupler. And a locking claw provided on the corrugated retainer and a locking portion provided on the coupler are elastically locked.

Therefore, the electric wire is covered with the conductive plated corrugated tube in the wiring section,
In the section where the conductive-plated coupler is inserted, it is covered with the coupler and the corrugated retainer also plated with conductive. Further, the corrugated tube is electrically connected to the coupler and the corrugated retainer, and the corrugated tube is more reliably secured by the locking between the retaining claw provided on the corrugated retainer and the retaining portion provided on the coupler.

Therefore, without using a shield wire,
The same shielding effect as when a shielded wire is used can be obtained, and even if the shield structure is vibrated, the electrical connection is not impaired, and it is possible to reliably prevent accidents due to poor wire shielding. . Further, since the locking claws and the rotation preventing projections shown in the other embodiments appear in the appearance of the corrugated retainer, they are also used for positioning when assembling the corrugated retainer, and the assembling work efficiency can be improved. .

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a first embodiment of a shield structure of an electric wire of the present invention.

FIG. 2 is a perspective view showing an assembled state of the coupler in FIG.

FIG. 3 is a perspective view showing an external shape of the corrugated retainer in FIG.

FIG. 4 is a perspective view showing a process of assembling the corrugated retainer in FIG. 1;

FIG. 5 is an enlarged sectional view of a main part showing a locking process between the locking portion and the locking claw.

FIG. 6 is an enlarged cross-sectional view showing a locked state between a locking portion and a locking claw in FIG. 5;

FIG. 7 is a perspective view showing an assembled state of a coupler which is a second embodiment of the electric wire shield structure of the present invention.

FIG. 8 is a perspective view showing a form of a corrugated retainer.

FIG. 9 is a perspective view showing a locked state of the locking groove and the rotation preventing protrusion.

FIG. 10 is a perspective view showing another configuration example of the locking means.

FIG. 11 is a perspective view showing a third embodiment of the electric wire shield structure of the present invention.

FIG. 12 is a sectional view of a main part showing an example of a conventional electric wire shield structure.

FIG. 13 is a perspective view showing an assembled state of the coupler in FIG.

FIG. 14 is a perspective view showing a configuration of a corrugated retainer in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shield structure of electric wire 2 Box 3 Coupler 4 Corrugated tube 5 Corrugated retainer 5a, 5b Half-split member 6 Electric wire 11 Cylindrical part 12 Flange part 13 Locking part 13a Locking step part 22 Locking claw 22a Wedge part 23 Locking projection 31, 36 Locking groove 32 Rotation preventing protrusion 33 Locking concave portion 35 Waterproof coupler X Locking means

Continuation of front page (56) References JP-A-9-8489 (JP, A) JP-A-9-180825 (JP, A) JP-A-9-298382 (JP, A) JP-A-3-82576 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H02G 3/06 H01B 7/20 H01B 11/06 H02G 3/04 H05K 9/00 H05K 7/00

Claims (6)

(57) [Claims] 1. A corrugated tube that covers an electric wire and has a conductive plating on the surface, a coupler that has the one end locked with the corrugated tube and has a conductive plating on the surface through which the electric wire is inserted, and In a wire shield structure including a corrugated retainer having a surface plated with conductive plating for bringing the corrugated tube into pressure contact with the coupler, the corrugated retainer may be attached to one end of the corrugated retainer and one end of the coupler. A shield structure for an electric wire, comprising a pair of locking means for locking the wire. 2. A stopper corresponding to a rotation path of the locking claw of the coupler, the locking claw being integrally rotated at one end of the corrugated holding with the rotation of the corrugated holding. 2. The electric wire shield structure according to claim 1, further comprising a locking portion provided to elastically lock the locking claw. 3. The assembling means according to claim 1, further comprising: a rotation preventing projection which is integrally rotated at one end of the corrugated retainer with rotation of the corrugated retainer, and a side surface of the coupler which is used to attach the corrugated retainer. 2. The electric wire shield structure according to claim 1, further comprising a locking groove formed at a position where the rotation preventing projection is positioned. 4. The coupler comprises a cylindrical portion formed in a cylindrical shape, and a flange portion formed on an outer surface of the cylindrical portion, and the coupler is formed on a side surface of the flange portion around the cylindrical portion. The electric wire shield structure according to claim 1, wherein a pair of locking portions are provided so as to face each other, and a pair of locking claws are provided so as to face one end of the corrugated retainer. 5. The shield structure for an electric wire according to claim 4, wherein said locking portion includes a locking step portion for locking said locking claw. 6. The electric wire shield structure according to claim 4, wherein the locking claw has a wedge portion oriented in a rotation direction of the corrugated retainer.