JPH0431751Y2 - - 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 disassemble, has a good shielding effect, and can be used effectively after a multi-core shielded cable. It is.

[Conventional technology]

In conventional shielded connectors, the end of the shielded cable's shielded sheath is directly soldered to the shielded case, or the terminals soldered to the ends of the shielded sheath are connected with screws to the shielded case, and each component is connected. It is assembled by fastening with screws etc.

[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 that has a large number of terminals on the front surface to which the core wires of the shielded cable are connected; The upper hook has an engagement groove and is provided with an upward hook protruding from the upper surface of the upper one, and the front part of the insulating outer sheath of the shielded cable is connected to the upper and lower receiving grooves.
and a rear part of the shield skin that protrudes forward and is exposed from the front end of the insulating skin, and the exposed front end of the shield skin is folded back along the outer surface to the outside of the engagement groove. A cable retainer made of an insulating material overlaid with a cable retainer is formed in pairs at the top and bottom, and the side pieces are fitted together to form a flat box shape with an opening at the center of the front and rear surfaces, and the terminal board is connected to the terminal board at the front. The metal shield cover has a rear opening that engages with the engagement groove provided on the outer periphery of the cable holder. The cable retainer has a stepped portion at a key point on the inner surface with which the hook of the cable presser engages, and a groove is formed extending from the stepped portion to the rear end. The above-mentioned problems can be solved by including an insulating and flexible outer cover.

[Effect]

The outer cover of the shield connector is prevented from coming off backward by engaging the stepped portion with the hook of the cable holder.

The front parts of both shield covers pressed by the outer cover hold the terminal board immovably, and
The rear opening firmly clamps the exposed end of the shield sheath of the shield cable between the rear opening and the cable holder, thereby reliably electrically connecting the shield cover and the shield sheath.

The assembled connector can be pulled out rearward by inserting, for example, a screwdriver into the groove of the outer cover from the rear and releasing the engagement between the stepped portion and the hook.

Further, since there are no screw-fastening points and no soldering points other than the connection between the terminal and the core wire of the shielded cable, it can be easily disassembled.

〔Example〕

The drawings illustrate one embodiment of the invention.

1 is a terminal board with a large number of terminals 2 planted on the front surface, and consists of a front plate 1a and a rear plate 1b, with both the front and rear plates 1
a, 1b are engagement pieces 3 provided at key points on both the upper and lower sides.
and a hook 4, which are integrally connected to each other.

Reference numeral 5 denotes a shielded cable. At its front end, an insulating outer sheath 6 is removed to expose a mesh-cylindrical shield outer sheath 7 and a large number of core wires 8. Each core wire 8 is soldered or crimped to the terminal 2. has been done.

Reference numerals 9 and 10 indicate a pair of upper and lower cable holders made of synthetic resin, and the rear end of the upper surface of the upper cable holder 9, which slopes downwardly, faces forward and has an upper end that is approximately at the same height as the front end of the cable holder 9. A pair of left and right hooks 11 are provided to protrude.

The exposed rear part of the shield skin 7 (right side in FIG. 1) is fitted into the semicircular receiving groove 12 formed on the front of the opposing surfaces of both cable holders 9 and 10, and the opposing surfaces of the cable holders 9 and 10 are fitted into Receiving groove 13 formed in the rear part
The front end of the insulating outer cover 6 is fitted into the insulating outer cover 6.

A large number of engagement protrusions 14 facing in the circumferential direction are formed on the surface of the receiving groove 13, and the cable retainers 9, 1
A semicircular engagement groove 15 coaxial with the receiving groove 12 is formed in the front portion of the outer circumferential surface of the 0.

The left and right sides of the lower cable holder 10 are fitted into the left and right concave grooves 16 facing in the front-rear direction and having opposing U-shapes, which are continuous downward from both the left and right sides of the upper cable holder 9. By doing so, the shielded cable 5 is strongly held, and at this time, the engaging protrusion 1
4 bites into the insulating outer cover 6 to prevent mutual back and forth movement.

The front end portion of the shield outer skin 7 that projects forward from both cable holders 9 and 10 is folded back onto the engagement groove 15.

Reference numerals 17 and 18 indicate a pair of upper and lower metal shield covers, with central pieces 17a and 1 parallel to each other.
Side pieces 17b, 18b and rear piece 17 facing in opposite directions are provided at both left and right ends and rear end of 8a.
c and 18c are connected.

Engagement recesses 19 projecting outward are formed on the inner surfaces of the front left and right sides of both the center pieces 17a, 18a, and a semicircular groove 20 is cut from the end edge in the center of both the rear pieces 17c, 18c. has been done.

Both shield covers 17, 18 have side pieces 17b,
18b and the rear pieces 17c, 18c are fitted together to form a flat box shape, and the front part thereof holds the terminal plate 1 from above and below, and the semicircular grooves 20, 20 at the rear end are formed into a flat box shape. 7 from above and below and press fit into the engagement grooves 15 of both the upper and lower cable holders 9 and 10, and then connect the terminal plate 1 and the shielded cable 5.
It covers the core wire 8 exposed between.

The engagement pieces 3 of the terminal board 1 held by both shield covers 17, 18 fit into the inner surfaces of the engagement recesses 19 of the shield covers 17, 18, and are relatively immovable in the front, rear, left and right directions.

Reference numeral 21 denotes an elastic flat cylindrical flexible outer cover made of rubber or soft synthetic resin, and has recesses in the front portion corresponding to the outer surfaces of the engaging recesses 19, 19 of the shield covers 17, 18. An inlet 22 is formed.

At the center of the rear inner surface of the upper wall of the outer cover 21, a groove 23 having the same width as the width of the upper cable retainer 9 is formed forward from the rear end, and at the front end of the groove 23, a downward step is formed. A portion 24 is formed.

A circular recessed hole 25 is formed above the downward step portion 24 on the upper surface of the outer cover 21 .

The outer cover 21 has both cable holders 9 and 10,
The shield covers 17 and 18 are forcibly fitted onto most of the shield covers 17 and 18 from the rear without loosening, and the downward stepped portion 24 crosses over the hook 11 of the cable holder 9 and engages with it. It prevents it from coming off backwards and holds each member integrally under pressure.

The semicircular grooves 20, 20 on the rear surfaces of the shield covers 17, 18, which are properly pressed by the outer cover 21,
By fitting into the engagement grooves 15, 15 of the cable holders 9, 10 and strongly pressing the ends of the shield cover 7, the shield covers 17, 18 and the shield cover 7 are reliably electrically connected. .

In the shielded connector of the present invention assembled as described above, the concave groove 23 at the rear end of the outer cover 21
For example, insert a screwdriver into the
If the engagement between the downward stepped portion 24 and the hook 11 is released,
The outer cover 21 can be pulled out rearward and easily disassembled.

[Effect of idea]

(a) The peripheral edge of the semicircular groove on the rear surface of both shield covers, which is elastically pressed by the outer cover, strongly presses the exposed end of the shield outer skin with the cable holder, so that the shield cover and The shield skin is electrically connected reliably.

(b) Since there are no screw-fastening points and no soldering points other than the connection between the terminal and the core wire of the shielded cable, assembly is easy and workability is good.

(c) The outer cover that holds each member together is engaged with the cable holder that is fixed to the shielded cable through the downward step and the hook, so there is no risk of it coming off.

(d) By disengaging the downward step from the hook using a screwdriver or the like, the outer cover can be easily removed for maintenance, inspection, and repair.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of one embodiment of the shield connector of the present invention, FIG. 2 is a longitudinal sectional side view of the same, and FIG. 3 is a cut end view taken along line A--A in FIG. 1...terminal board, 1a...front plate, 1b...rear plate,
2...terminal, 3...engaging piece, 4...hook, 5...
...Shield cable, 6...Insulating outer cover, 7...Shield outer cover, 8...Core wire, 9, 10...Cable holder, 11...Hook, 12, 13...Receiving groove, 1
4... Engaging protrusion, 15... Engaging groove, 16... Concave groove, 17, 18... Shield cover, 17a, 1
8a...Central piece, 17b, 18b...Side piece, 17
c, 18c...rear piece, 19...engaging recess, 20...
...Semicircular groove, 21...Outer cover, 22...Recessed hole,
23... Concave groove, 24... Downward stepped portion, 25... Circular concave portion.

Claims (1)

[Claims for Utility Model Registration] A terminal board having a large number of terminals on the front surface to which the core wires of a shielded cable are connected, and a terminal plate having upper and lower pairs, a semicircular receiving groove on the opposing surface, and a terminal board on the outer peripheral surface. It has a semicircular engagement groove, and an upward hook protrudes from the upper surface of the upper one, and the upper and lower receiving grooves are connected to the front part of the insulating jacket of the shielded cable and to the front of the front end of the insulating jacket. The shield is made of an insulating material that holds the rear part of the shield skin that protrudes and is exposed, and that the exposed front end of the shield skin is folded back along the outer surface and overlaps the outside of the engagement groove. By forming a pair of upper and lower cable restraints and fitting the side pieces together, it becomes a flat box shape with an opening at the center of the front and rear sides, and the front part holds the terminal board, and the rear opening opens. The part has a flat cylindrical shape and is fitted with a metal shield cover that engages with the engagement groove provided on the outer periphery of the cable holder, and is fitted onto the cable holder and the shield cover from the rear without loosening, so that the two are integrated. an insulated flexible outer cover which is held under pressure and has a stepped portion at a key point on the inner surface with which the hook of the cable presser engages, and a concave groove extending from the stepped portion to the rear end; A shielded connector equipped with