JPH0343665Y2 - - 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 to connect multi-core shielded cables. be.

[Conventional technology]

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

[Problem that the invention attempts to solve]

Therefore, it is troublesome to assemble the connector and disassemble it for safety inspection.

[Means for solving problems]

The present invention includes a terminal board in which a large number of terminals are implanted and engagement pieces provided on the upper and lower surfaces, and an upper and lower pair of shielded cables in which core wires are connected to the terminals. The engagement piece provided at the rear of the inner surface engages with the cable holder, which holds the base of 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 engagement pieces on the top and bottom of the terminal board are engaged with the engagement recess provided at the front inside part to hold the terminal board, and the opening on the rear surface is designed to hold the cable. A cylindrical metal shield cover is fitted into an engagement groove provided on the outer periphery of the presser foot to maintain electrical connection with the end of the shield outer cover, and the cable presser and shield cover are fitted from the rear without loosening. The above-mentioned problems are solved by configuring a shield connector consisting of an integrally molded flexible cover that fits onto the outside of the connector and holds the two together.

[Effect]

The shielded connector of the present invention has a terminal board at the front and a cable holder at the rear between the pair of upper and lower shield covers, and is sandwiched by the elasticity of the covers by providing engagement means in the front and rear direction, respectively.
They are fixed together, and the periphery of the rear opening of the shield cover is strongly pressed against the end of the exposed shield jacket of the shielded cable through a pair of upper and lower shield holders, so that the shield cover and the shield jacket In addition to ensuring a reliable electrical connection, the engaging protrusion provided on the rear inner surface of the shield holder engages with the end of the insulating outer sheath of the cable to integrally connect the connector part and the cable. Become.

In addition, this connector does not require a single screw to be installed when installing the terminal board or fixing the cable, and other than the connection between the terminal and the core wire of the shielded cable.
Since soldering is not required, assembly is easy and workability is improved, and disassembly for safety inspections is also easy.

〔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 the insulating outer sheath 6 is cut off to form a net-cylindrical shield outer sheath 7.
A large number of core wires 8 are exposed, and each core wire 8 is soldered to the terminal 2.

Reference numeral 9 denotes a pair of upper and lower cable retainers made of synthetic resin that are approximately half-cylindrical in shape, and the exposed base of the shield skin 7 (right side in the drawing) is fitted into a receiving groove 10 formed on the front inner surface of the cable retainer 9. The end of the insulating outer cover 6 is fitted into a receiving groove 11 which is also 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 portion 7a of the shield outer sheath 7 is brought into contact with the receiving groove 10 on the front inner surface of the cable holder 9, and the mesh wire portion of the shield outer sheath 7 is separated. There is no need to turn around.

Reference numerals 14 and 15 indicate a pair of upper and lower metal shield covers, with central pieces 14a and 1 parallel to each other.
Side pieces 14b, 15b and a rear piece 14 facing in opposite directions are provided at both left and right ends and rear end of 5a.
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 semicircular 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 press-fitted into the engagement grooves 13 of both the upper and lower cable retainers 9 by sandwiching the ends 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 an elastic and flexible cover made of, for example, rubber or soft synthetic resin, and the front inner surface thereof has an engaging recess 16 that projects outward at the front of the shield covers 14 and 15, and a rib 17. A recessed hole 20 and a groove 21 with a bottom corresponding to each other are formed.

This 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 groove 1 at the rear end of the shield covers 14 and 15 is pressed inward by the elasticity of the cover 19.
8 and 18 strongly press the ends of the shield outer cover 7 between the upper and lower cable holders 9, 9 to ensure electrical connection between the shield covers 14 and 15 and the shield outer cover. Further, the protrusions 12, 12 of the cable pressers 9, 9 that are pressed together are connected to the shielded cable 5.
It bites into the insulating outer skin 6 of and prevents mutual back-and-forth movement.

The cover 19 fitted externally as described above is inserted into the engagement recess 16 by inserting, for example, a screw driver between its front end and the shield covers 14 and 15.
By disengaging the engagement between the recessed portion 20 and the rib 17 and the groove 21, it can be pulled out rearward.

Note that if conductive synthetic resin is used for both cable holders 9, the shield covers 14, 15 and the shield outer cover 7 can be electrically connected without being in direct contact as described above.

[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 into an integrated connector.

(b) When assembled, the shield case and terminal board are firmly 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 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. Increases the reliability of the electrical connection of the envelope.

(e) Also, since the periphery of the rear opening of the shield cover strongly presses the front end of the cable holder, and the cover strongly presses the rear end of the shield holder, the engagement protrusion on the inner surface of the cable holder firmly engages.

(f) When assembled in this manner, 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.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the shielded connector of the present invention, and FIG. 2 is a side view in longitudinal section of the same. 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...Cable holder,
10, 11... Receiving groove, 12... Engaging protrusion, 13...
...Engagement groove, 14, 15...Shield cover, 14
a, 15a...center piece, 14b, 15b...side piece, 14c, 15c...rear piece, 16...engaging recess, 17...rib, 18...semicircular groove, 19...cover, 20... ... recessed hole, 21 ... groove.

Claims (1)

[Scope of Claim for Utility Model Registration] A terminal board in which a large number of terminals are implanted and engagement pieces are provided on the upper and lower surfaces, and an insulating outer sheath in a shielded cable that forms an upper and lower pair and has a core wire connected to the terminals. The end part is engaged with the engagement protrusion provided on the rear of the inner surface, and the cable retainer holds the base of the shield skin with the front inner surface exposed. By doing so, the terminal board is shaped like a cylinder with openings at the center of the front and rear surfaces, and the engagement pieces on the upper and lower sides of the terminal board are engaged with the engagement recesses provided at the inner front part to hold the terminal board. A metal shield cover whose rear opening engages with an engagement groove provided on the outer periphery of the cable holder while maintaining an electrical connection with the end of the shield outer cover; A shield connector consisting of an integrally molded flexible cover that fits tightly onto the shield cover and holds both together.