JPH0343666Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a shielded connector that is easy to assemble and use, has good shielding effect, and is effective when used to connect multi-core shielded cables. be.

[Conventional technology]

Conventional shielded connectors are connected by either directly soldering the end of the shield sheath of a shielded cable to the shield case, or connecting the terminals soldered to the ends of the shield sheath with screws, and then fastening each member with screws, etc. I am assembling it.

[Problem that the invention attempts to solve]

Therefore, assembly of the connector and disassembly for maintenance and inspection are troublesome.

[Means for solving problems]

The present invention consists of a terminal board in which a large number of terminals are implanted and engagement protrusions provided on the upper and lower surfaces, and an upper and lower pair formed at the end of the insulating outer sheath of a shielded cable in which a core wire is connected to the terminals. , the engagement protrusions provided at the rear of the inner surface engage, and the cable retainer holds the shield skin with the front of the inner surface exposed. It has a cylindrical shape with an opening at the center of the rear surface, and the projections on the top and bottom of the terminal board are engaged with the engagement recesses provided at the front inside to hold the terminal board, and the opening on the rear surface is used as a cable holder. A metal shield cover is formed into a cylindrical shape and is fitted into an engagement groove provided on the outer periphery of the shield cover to maintain an electrical connection with the end of the shield outer skin. A shield consisting of a flexible outer cover made of a hard synthetic resin integrally molded with an appropriate number of recessed grooves facing the same direction, and which fits tightly onto the cable retainer and shield cover from the rear to hold them together. The connector is configured to solve the above-mentioned problems.

[Effect]

Between the pair of upper and lower shield covers, a terminal board is provided in the front and a cable holder is provided in the rear, each with engagement means in the front-rear direction, and by sandwiching them with the elasticity of the outer cover, they are fixed together. , and the periphery of the rear opening of the shield cover is strongly press-contacted to the end of the exposed shield sheath of the shielded cable through the pair of upper and lower shield holders, ensuring a reliable electrical connection between the shield cover and the shield sheath. Become something.

The engagement protrusion provided on the rear inner surface of the shield holder is
The connector portion and the cable are integrally coupled by engaging the end of the insulating jacket of the cable.

There are no screws required for attaching the terminal board or fixing the cable, and soldering is required except for connecting the terminal and the core wire of the shielded cable, making assembly easy and improving work efficiency. In addition, it is easy to disassemble for safety inspection.

Due to the numerous recessed grooves on the inner surface of the outer cover,
Since the connector is strong, the outer cover is made of a hard and durable material, and the outer cover is bent in the recessed groove to allow easy attachment and detachment, and also to facilitate disassembly for maintenance and repair. be.

〔Example〕

The drawings illustrate one embodiment of the invention.

1 is a terminal board on which a large number of terminals 2 are implanted, and is composed of a front plate 1a and a rear plate 1b, and both the front and rear plates 1a, 1b
are integrally connected by engaging pieces 3 and hooks 4 provided at key points on both the upper and lower sides.

Reference numeral 5 denotes a shielded cable, at the end of which an insulating jacket 6 is removed to expose a mesh-cylindrical shield jacket 7 and a large number of core wires 8, each core wire 8 being soldered or crimped to the terminal 2. has been done.

Reference numeral 9 denotes a pair of upper and lower cable retainers made of synthetic resin and having an approximately half-cylindrical shape, and the exposed base of the shield skin 7 (right side in the drawing) is inserted into the receiving groove 10 formed on the front part of the inner surface. The end of the insulating outer cover 6 is fitted into the receiving groove 11 formed at the rear of the inner surface. A large number of engagement protrusions 12 facing in the circumferential direction are formed in the receiving groove 11 .

A circumferential engagement groove 13 is formed in the front portion of the outer peripheral surface of the cable presser 9, and the end portion of the shield skin 7 is folded back to cover the engagement groove 13.

In addition, when the cable holder 9 is made of conductive synthetic resin, the end of the shield outer cover 7 should be in contact with the receiving groove 10 on the front inner surface of the cable holder 9.
There is no need to take apart the mesh wire portion of the shield outer skin 7 and fold it back.

Reference numerals 14 and 15 designate a pair of upper and lower metal shield covers, including central pieces 14a and 14a, which are parallel to each other.
Side pieces 14b, 15b and rear piece 14 facing in opposite directions are provided at both left and right ends and rear end of 15a.
c and 15c are installed in series.

On the left and right sides of both center pieces 14a and 15a, there are engagement recesses 16 that project slightly outward, and between both engagement recesses 16 there is a rib that faces laterally and projects slightly outward. 17 is formed, and a solder groove 18 is cut in the center of both rear pieces 14c, 15c from the edge.

Both shield covers 14, 15 have side pieces 14b,
15b and the rear pieces 14c, 15c fit together, so that the terminal plate 1 is held from above and below at the front part thereof, and the semicircular grooves 18, 18 at the rear end are fitted together.
are press-fitted into the engagement grooves 13 of both the upper and lower cable retainers 9 by sandwiching the edges of the shield outer cover 7 from above and below, and cover the core wires 8 exposed from the terminal plate 1 and the shield cable 5.

The terminal board 1 held by both the shield covers 14 and 15 has its engaging piece 3 attached to the shield covers 14 and 15.
It is fitted into the engagement recess 16 of No. 15 so as not to be movable in the front, rear, left and right directions.

Reference numeral 19 denotes a relatively hard, elastic and flexible outer cover made of, for example, hard rubber or soft synthetic resin. Corresponding bottomed recessed holes 20 and grooves 21 are formed in the engaging recesses 16 and ribs 17, respectively, and recessed grooves 22 facing in the front-rear direction are formed at the four corners of the inner surface and on both upper and lower surfaces. There is.

This outer cover 19 is attached to both cable holders 9 mentioned above.
and is forcibly fitted from the rear onto most of the shield covers 14 and 15 other than the front parts, without any slack.
The engagement recesses 16 and ribs 17 of the shield covers 14 and 15 engage with the recessed holes 20 and grooves 21, respectively, to prevent them from coming off rearward.

The semicircular grooves 18, 18 at the rear ends of the shield covers 14, 15, which are pressed inward by the elasticity of the outer cover 19, close the ends of the shield skin 7 between the upper and lower cable holders 9, 9. The protrusions 12 of the cable holder 9, which are strongly pressed against the cable holder 9 to ensure electrical connection and are pressed inward, bite into the insulating outer sheath 6 of the shielded cable 5 and prevent mutual back-and-forth movement. It is prevented.

As mentioned above, since the recessed groove 22 is provided on the inner surface of the outer cover 19, even if the outer cover 19 is molded from hard rubber, hard synthetic resin, etc.
It can be attached and detached by bending in the recessed groove 22.

If conductive synthetic resin is used for both cable holders 9, the shield covers 14, 15 and the shield outer sheath 7 can be electrically connected without being in direct contact with each other, as described above.

The cable holder 9 can also be made integrally by embedding the shielded cable 5 in the center.

[Effect of idea]

This invention can produce the following effects.

(a) An integrated connector can be easily assembled by covering the shield cover, terminal board, cable holder, and cable with the outer cover.

(b) When assembled, the shield case and terminal board are
Strongly connected.

(c) When assembled, the shield case and cable holder are firmly connected.

(d) When assembled, the periphery of the rear opening of the shield cover is pressed by the elasticity of the outer cover and strongly presses against the end of the exposed shield jacket of the shield cable between the cable holder and the shield cover and the shield. The reliability of the electrical connection of the outer skin is increased.

(e) The periphery of the rear opening of the shield cover strongly presses the front end of the cable holder, and the outer cover strongly presses the rear end of the cable holder, so the engagement protrusion on the inner surface of the cable holder presses against the insulating outer sheath of the cable. Tightly bond.

(f) When assembled in this way, the cable holder and cable are firmly connected.

(g) When assembling, no screws are required, and no soldering is required except for connecting the terminals and the core wires of the shielded cable.
It is easy to assemble, improves workability, and is easy to disassemble for safety inspections.

(h) Since an appropriate number of recessed grooves facing the front and rear directions are formed on the four inner corners and the inner surface plane of the outer cover, a hard synthetic resin material is used to mold the outer cover. We can provide durable screwless connectors.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the shielded connector of the present invention, FIG. 2 is a central longitudinal sectional side view, and FIG. 3 is a cut end view taken along line A--A in FIG. 2. 1...Terminal board, 1a...Front plate, 1b...Rear plate,
2...terminal, 3...engaging piece, 4...hook, 5...
...shielded cable, 6 ... insulated outer sheath, 7 ... shielded outer sheath, 8 ... core wire, 9 ... cable holder,
10, 11... Receiving groove, 12... Engaging protrusion, 13...
...Engagement groove, 14, 15...Shield cover, 14
a, 15a...Central piece, 14b, 15b...Side piece, 14c, 15c...Rear piece, 16...Engagement recess, 17...Rib, 18...Semicircular groove, 19...Outer cover, 20 ... recessed hole, 21 ... groove, 22 ...
...Concave groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A terminal board with a large number of terminals installed and engaging protrusions on the upper and lower surfaces, and an insulating outer sheath of a shielded cable that forms a pair of upper and lower ends and has a core wire connected to the terminals. A cable retainer is engaged with the end of the shield by an engaging protrusion provided on the rear of the inner surface, and the cable retainer holds the shield skin with the front of the inner surface exposed. This results in a cylindrical shape with openings at the center of the front and rear surfaces, and the protrusions on the top and bottom of the terminal board are engaged with the engagement recesses provided at the inner front, thereby holding the terminal board and opening the rear surface. a metal shield cover that is cylindrically shaped and that engages with the engagement groove provided on the outer periphery of the cable holder while maintaining electrical connection with the end of the shield outer cover; A flexible outer cover made of a hard synthetic resin integrally molded with an appropriate number of recessed grooves facing in the front-rear direction, which fits over the cable retainer and shield cover from the rear without loosening and holds them together. and more shielded connectors.