JPH0520279U - Shielded connector - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the cost and simplify the assembly process. [Construction] The wireless braided portion 22 of the cable 20 without the wire braided portion 21a is shielded by a metal foil 15 surrounding the metal foil 15, and the overlapping portion of the metal foil 15 and the folded wire braided portion 21 is collectively clamped by a caulking metal fitting 25 or the like. To connect.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shielded connector for connecting signal wires and the like.

[0002]

[Prior Art]

 In the conventional connector of this type, as shown in FIG. 5, a wire braid 21a is folded back at the tip of a cable having a common wire braid 21a that shields the outer sides of a plurality of electric wires 23, and there is no wire braid. A wire braided portion 22 and a folded wire braided portion 21 are formed, and a cover 30 for covering the wireless braided portion 22 is provided, and a metal tubular shell 31 assembled to the tip end side of the cover 30 is provided with a conductor 32 inside thereof. Is shielded. In this connector, the folded wire braided portion 21 of the cable 20 is grasped and positioned by the rear end side of the cover 30, and a separate shield case 33 molded by sheet metal processing or die casting or a resin case is plated. The electric wire 23 of the wireless braided portion 22 is shielded by the above-mentioned method, and the cylindrical shell 31, the wire braid 21a, the shield case 33, and the like are mutually connected by soldering.

[0003]

[Problems to be solved by the device]

 However, in such a conventional shielded connector, a separate shield case 33 or a resin case plated is expensive, and soldering is required for interconnecting each shield. There was a problem that it was difficult to simplify. SUMMARY OF THE INVENTION An object of the present invention is to provide a shielded connector which has a low component cost and can be easily assembled.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention folds the wire braid at the tip of a cable having a plurality of electric wires and a common wire braid that shields the outer sides of the plurality of electric wires, thereby eliminating the wire braid. In a shielded connector having a wireless braided portion and a folded wire braided portion and having a cover for covering the wireless braided portion, a metal foil surrounding the wireless braided portion is provided, and the metal foil and the folded wire are provided. It is characterized in that the braided part is clamped at the rear end side of the cover and connected together.

[0005]

[Action]

 In the shielded connector according to the present invention, since the wireless braided portion is surrounded by the metal foil, a separate shield case is not required, and the metal foil and the folded wire braided portion are clamped at the rear end side of the cover. By connecting all at once, soldering is unnecessary.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a side sectional view showing a main part of a shielded connector according to an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a plan view thereof, and FIG. 4 is a state before covering with a cover according to an embodiment of the present invention. It is a side sectional view in. The shielded connector according to the present embodiment covers the insulator 5 in which the plurality of contacts 6 are incorporated and the cylindrical shell 10 fitted to the outer periphery of the insulator 5 on the tip side of the cover 1 to form a wire braid. The folded wire braided portion 21 of the cable 20, which is formed by shielding the outsides of the plurality of electric wires 23 with 21a, is clamped at the rear end side of the cover 1, and the exposed wireless braided portion 22 of the cable 20 without the wire braided portion 21a A plurality of electric wires 23 are covered with a cover 1. In this connector, the wireless braided portion 22 and the end of the folded wire braided portion 21 are surrounded by the metal foil 15, and reach the folded wire braided portion 21 and the connection extension portion 12 provided in the tubular shell 10. The overlapping portions of the metal foil 15 and the wire braid 21a are crimped together by caulking metal fittings 25 and interconnected.

The cover 1 is formed by combining the lower divided body 2 and the upper divided body 3 shown in FIG. 1, a connector holding hole 1 a is provided on the front end side, and a housing chamber 4 for housing the wireless braided portion 22. Is formed at an intermediate position, and clamping pieces 2a, 3a are provided inwardly projecting at a position near the rear end of the accommodation chamber 4, and an annular groove 1b and further at the rear end side of the rear side of the clamping pieces 2a, 3a. A rear end annular groove 1c is provided at the rear of the rear end annular groove 1c, and a caulking metal fitting 25 described later is fitted in the annular groove 1b, and a flange piece 8a of the cable protection bush 8 is fitted in the rear end annular groove 1c.

In the case of the present embodiment, the insulator 5 has 10 contacts 6 installed in parallel to each other, and the ends of the electric wires 23 corresponding to the contacts 6 are connected.

The tubular shell 10 is integrally formed with the metal tubular portion 11 fitted to the outer periphery of the insulator 5 from the rear end of the tubular portion 11 with a length reaching the outer surface of the tip of the folded wire braided portion 21. A connector extension hole 12a, and the cylindrical portion 11 is held by the lower divided body 2 and the upper divided body 3 at the connector holding hole 1a, and is assembled to the tip side of the cover 1 together with the insulator 5. It is attached.

The metal foil 15 is wholly made of copper or aluminum, and extends from the inner wall surface 4 a of the accommodation chamber 4 on the side closer to the tip to the rear of the caulking metal fitting 25 in the wire-less braided portion of the accommodation chamber 4. The whole 22 and the tip of the folded wire braided portion 21 are surrounded, and the tip of the connection extension 12 is in contact with the outer surface.

The caulking metal fitting 25 is made of a metal rod material having plasticity, and the tip of the connection extension portion 12 of the tubular shell 10 and the overlapping portion of the metal foil 15 and the wire braid 21a are put together from the outer periphery thereof. Then, the tubular shell 10, the metal foil 15 and the wire braid 21a are electrically connected to each other.

Such a shielded connector is assembled in the following order. First, the tip of the cable 20 is stripped, and the contact 6 is crimp-connected to each electric wire 23. The ten contacts 6 to which the ends of the electric wires 23 are connected are inserted and incorporated into the insulator 5 at their respective predetermined positions. The tubular shell 10 is fitted around the outer periphery of the insulator 5. The wire braid 21a is folded back to form the tip of the cable 20 as a wireless braid portion 22. The electric wire 23 of the wireless braided portion 22 and the tip of the folded wire braided portion 21 are wrapped with the metal foil 15. The tip of the connection extension 12 and the overlapping portion of the metal foil 15 and the wire braid 21a are collectively caulked by the caulking metal fitting 25. With the lower divided body 2 of the cover 1 oriented as shown in FIG. 1, the cylindrical shell 10 is placed at the position of the connector holding hole 1a, and the wireless braided portion 22 surrounded by the metal foil 15 is placed at the position of the accommodation chamber 4. The caulking metal fitting 25 and the brim piece 8a are arranged at the positions of the annular groove 1b and the rear annular groove 1c, respectively, and the upper divided body 3 is covered and the lower divided body 2 is locked with a locking portion (not shown). Complete the assembly.

The present invention is not limited to the above embodiment, the metal foil 15 may be made of a metal other than copper or aluminum, and the caulking metal fitting 25 is made of a material other than metal. Various modifications are possible without departing from the scope of the invention.

[0014]

[Effect of the device]

 As described above, according to the present invention, since the wireless braided portion is surrounded by the metal foil, a separate shield cover or the like is not required, so that the cost of parts can be reduced, and the wireless braided portion can be reduced. Assembling is easy by simply winding the metal foil on the wire braided part and clamping the overlapping part of the metal foil and the wire braid, and because soldering is not required, workability is greatly improved and assembly processing is performed. The effect is that the simplification of is easy.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a main part of a shielded connector according to an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a side sectional view showing a state before the cover is put on the connector according to the embodiment of the present invention.

FIG. 5 is a side sectional view showing a conventional shielded connector.

[Explanation of symbols]

 1 Cover 4 Storage Room 5 Insulator 6 Contact 10 Cylindrical Shell 12 Connection Extension 15 Metal Foil 20 Cable 21 Folded Wire Braided Part 22 Wireless Braided Part 23 Wire 25 Crimping Fitting

Claims (1)

[Scope of utility model registration request] 1. A wireless braided portion and a folded wire braided portion having no wire braid by folding back the wire braid at the tip of a cable having a plurality of electric wires and a common wire braid that shields the outer sides of the plurality of electric wires. In a shielded connector having a cover for covering the wireless braided portion, a metal foil surrounding the wireless braided portion is provided,
A shielded connector in which the metal foil and the folded wire braided portion are clamped together at the rear end side of the cover to be connected together.