JPH0431752Y2 - - 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 is effective when used for connecting multi-core shielded cables. It is.

[Conventional technology]

Conventional shielded connectors are connected by either directly soldering the end of the shielded sheath of the shielded cable to the shielded case, or connecting the terminals soldered to the ends of the shielding sheath with screws, and connecting each member with screws, etc. It is fastened and assembled.

[Problem that the invention attempts to solve]

Therefore, assembling the connector and disassembling it for security inspections are troublesome.

[Means for solving problems]

This invention consists of a terminal board with a large number of terminals implanted and engaging protrusions on the top and bottom surfaces, and a shielded cable with a core wire connected to the terminals. and the front inner surface is electrically connected to the exposed shield skin;
In addition, it is equipped with an engaging groove in the front of the outer peripheral surface, and a hook facing forward at the rear, and forms an upper and lower pair with a cable holder made of conductive synthetic resin material, and the side pieces fit together. , the terminal board has a cylindrical shape with openings at the center of the front and rear surfaces, and engages the upper and lower protrusions of the terminal board with engagement recesses provided at the inner front part,
A metal shield cover that holds the terminal board and whose rear opening can engage with an engagement groove provided on the outer circumferential surface of the cable holder, and a metal shield cover that has a cylindrical shape and is connected to the cable holder and the shield cover from the rear. An integrally molded flexible cable having a through hole drilled from the outer surface so that the hook of the cable holder is engaged and the outer side of the hook is exposed when the hook is fitted without loosening. The above-mentioned problems are solved by constructing a shield connector consisting of a flexible cover.

[Effect]

By engaging the through hole of the cover of the shielded connector of the present invention with the hook of the cable holder, it is prevented from coming off backwards, and the shield cover and cable holder are held together, and the cover allows the cable holder to be held inwardly. The front parts of both shield covers, which are pressed toward the terminal block, hold the terminal board immovably, and the rear openings engage with the engaging part of the shield holder, and the ends of the exposed shield jacket of the shield cable are The cable retainer made of a conductive synthetic resin material, which is in electrical contact, reliably electrically connects the shield cover and the shield outer skin.

The assembled connector can be assembled by inserting, for example, a screwdriver between the inner end of the cover in the through-hole of the cover and the side of the hook of the cable holder to release the engagement between the through-hole and the hook.
The cover can be pulled back.

When assembling the connector itself, there are no screw-fastening points, and there are no soldering points other than the connection between the terminal and the core wire of the shielded cable, so it can be easily disassembled.

〔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 consists of a front plate 1a and a rear plate 1b, and both front plates 1a and 1b are
They are integrally connected by engaging pieces 3 and hooks 4 provided at key points on both the upper and lower sides.

5 is a shielded cable, at its end,
The insulating outer skin 6 is removed, and a mesh-cylindrical shield outer skin 7 is formed.
A large number of core wires 8 are exposed, and each core wire 8 is soldered or crimped to the terminal 2.

Reference numerals 9 and 10 denote a pair of upper and lower cable holders made of conductive synthetic resin, and the rear end of the upper surface of the upper cable holder 9 faces forward, and the upper end protrudes upward from the front part of the cable holder 9. Pair of left and right hooks 11
are installed in succession.

The exposed base of the shield skin 7 (right side in FIG. 1) fits into the receiving groove 12 formed on the front inner surface of both cable holders 9 and 10, and the receiving groove 13 formed on the rear inner surface fits The ends of the insulating outer cover 6 are fitted together. A large number of engaging protrusions 14 are formed on the surface of the receiving groove 13 and are oriented in the circumferential direction.

An engaging groove 15 coaxial with the receiving groove 12 is formed in the front portion of the outer circumferential surface of both cable holders 9 and 10.

Both cable holders 9 and 10 are fastened together with screws 16 to strongly hold the shielded cable 5, and the engaging protrusion 14 bites into the insulating outer cover 6, so that they are fixed so that they cannot move back and forth relative to each other, and The front receiving grooves 12 of both cable holders 9 and 10 are pressed into contact with the exposed end of the shield skin 7 to establish an electrical connection.

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, respectively.
c and 18c are installed in series.

Engagement recesses 19 projecting outward are formed on the left and right sides of both the center pieces 17a, 18a, and the rear pieces 1
A semicircular groove 20 is cut in the center of 7c and 18c from the edge.

Both shield covers 17, 18 have side pieces 17b,
18b and the rear pieces 17c, 18c fit together, so that the terminal plate 1 is held from above and below at the front part thereof, and the semicircular grooves 20, 20 at the rear end are fitted together.
is press-fitted into the engagement groove 15 of both the upper and lower cable holders 9 and 10, and covers the core wire 8 exposed from the terminal plate 1 and the shielded cable 5.

The engagement piece 3 of the terminal board 1 held by both shield covers 17, 18 is fitted into the engagement recess 19 of the shield covers 17, 18 so as not to be movable in the front, rear, left and right directions.

Reference numeral 21 denotes a flexible cover made of, for example, rubber or soft synthetic resin, and at the front of its inner surface is a bottomed recessed insertion hole 2 into which the engagement recess 19 protruding outward at the front of the shield covers 17 and 18 can be fitted.
2 is formed.

A recessed groove 23 having the same width as the width of the cable presser 9 is formed on the upper inner surface of the cover 21 from the front end to near the rear end, and a through hole 24 that vertically passes through the cover 21 is formed at the rear end of the recessed groove 23. is formed.

This cover 21 is attached to both cable holders 9 and 10.
Then, the shield covers 17 and 18 are forcibly fitted from the rear onto the majority of the shield covers 17 and 18 other than the front portion, and the hook 11 of the cable holder 9 passes through the groove 23 and engages with the through hole 24. By doing so, it is prevented from coming off backward, and each member is integrally connected.

The semicircular groove 2 on the rear surface of the shield covers 17 and 18 is pressed inward by the elasticity of the cover 21.
0 and 20 fit into the engagement grooves 15 of the upper and lower cable holders 9 and 10, and the conductive cable holders 9 and 1
0 and in electrical contact with cable holders 9, 10
By press-contacting the receiving groove 12 with the exposed shield skin 7, the shield covers 17, 18 and the shield skin 7 are electrically connected reliably.

The shielded connector of the present invention assembled as described above is manufactured by inserting, for example, a screwdriver between the inner end of the cover 21 in the through hole 24 of the cover 21 and both hooks 11 of the cable holder 9, and opening the through hole 24. By disengaging the cover 24 from the hook 11, the cover 21 can be pulled out rearward and disassembled.

Note that even if there is only one hook 11, the cover 21
Since it is flexible, it can be disengaged with a screwdriver.

Although not shown, the above screw 16 is omitted,
The shielded cable 5 may be embedded in the center, and both cable holders may be integrally molded with a conductive synthetic resin material.

[Effect of idea]

The present invention has the following effects.

(a) By covering the shield cover, terminal board, cable holder, and cable with a cover, they can be easily assembled as an integrated connector.

(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 strongly presses and engages with the conductive cable holder, increasing the reliability of the electrical connection between the shield cover and the cable holder.

(e) The front end receiving groove of the cable holder is pressed into contact with the end of the shield jacket, and the cable holder and the shield jacket are electrically connected, so the mesh at the tip of the shield jacket is separated and folded. There is no need to return it, making it easier to install connectors and shielded cables.

(f) 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.

(g) In the assembled connector, the cover that holds each member together is engaged with the cable holder that is fixed to the shielded cable through the through hole and the hook, so it is strong and has no risk of coming off, and is secure against the screen. The cover can be easily removed and disassembled by releasing the engagement between the through hole and the hook using a U-driver or the like, which is convenient for safety inspections and repairs.

[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 vertical sectional side view, and FIG. 3 is a view taken along the line A--A in FIG. 2. 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... Screw, 17, 18... Shield cover, 17a, 1
8a...Central piece, 17b, 18b...Side piece, 17
c, 18c...rear piece, 19...engaging groove, 20...
...Semicircular groove, 21...Cover, 22...Recessed hole, 2
3... Concave groove, 24... Through hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A terminal board on which a large number of terminals are implanted and has engaging protrusions on the upper and lower surfaces, and an end of an insulating outer sheath of a shielded cable with a core wire connected to the terminals, The inner rear part is fixed, and the inner front front part is electrically connected to the exposed shield outer skin, and furthermore, the outer peripheral surface has an engaging groove in the front and a hook facing forward in the rear, and is made of a conductive synthetic resin material. The molded cable holder forms a pair of upper and lower parts, and the side pieces fit together to form a cylindrical shape with openings at the center of the front and rear surfaces, and the terminal is inserted into the engagement recess provided at the inner front part. A metal shield cover that holds the terminal board by engaging the protrusions on the top and bottom of the board, and whose rear opening can engage with the engagement groove provided on the outer circumferential surface of the cable holder; None, the cable holder and shield cover should be fitted from the rear without any slack, and the through hole should be formed so that the hook of the cable holder engages and the outer side of the hook is exposed when the cable holder and the shield cover are fitted. A shield connector consisting of an integrally molded flexible cover drilled from the outside.