JPS628132Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a shielding structure for a connector that provides electromagnetic shielding to the connector joint portion when a mating connector is connected to a connector body mounted on a metal panel plate.

A conventional shield structure of this type has been implemented as shown in FIG. 1, for example. That is, a long and narrow opening 12 for attaching the connector is formed in a metal panel plate 11, and a part of the connector body 13 is fitted and inserted into the opening 12, and a part of the connector body 13 is detachably fitted into the opening 12. When the mating connector 14 is connected to the connector body 13,
A pair of protrusions 16 and 17 are integrally formed at both ends of the opening surface of the metal cover 15 that is fitted to cover the outside, and the protrusions 16 and 17 are inserted into the screw 18 through holes formed in the protrusions 16 and 17. , 19 are tightened into the screw holes 21 and 22 formed in the panel plate 11 to bring the protrusions 16 and 17 into contact with the panel plate 11 and to electrically connect the connector body 13 and the mating connector 14. is electromagnetically shielded from the outside by the metal cover 15. Note that a cable 23 is led out of the mating connector 14 on the opposite side to the opening side of the metal cover 15.

In this conventional shield structure, the operation is troublesome because it is screwed together, and it is not possible to quickly attach and detach the connector. Moreover, when the signal frequency handled becomes high speed,
The distance from the contact portion of the protruding pieces 16, 17 with the panel board 11 to the center of the connector body 13 cannot be ignored, and as a result, the impedance from the protruding pieces 16, 17 to the center of the metal cover 15 becomes high. No shield effect is obtained.

Furthermore, in the conventional method, as shown in FIG. Insert the screw 27 into the formed screw hole 26.
In some cases, the lead wire 24 is electrically connected to the panel board 11 by tightening the lead wire 24 with the panel board 11. In this case, as in the case shown in FIG. 1, it is necessary to tighten and remove screws each time the connector is installed and removed.Moreover, when the impedance of the lead wire 24 becomes high frequency, it cannot be ignored, and therefore the metal cover 15 It becomes difficult to provide sufficient shielding in the center of the area.

The purpose of this invention is to automatically shield the mating part when mating the mating connector.
Moreover, it is an object of the present invention to provide a shielding structure for a connector that can provide sufficient shielding.

For example, as shown in FIGS. 3 to 6, in this invention, a mating connector 14 is attached to the connector body 13.
When these are combined, a shield piece 31 made of an elastic material is attached to elastically contact the side surfaces thereof. In this example, the shield pieces 31 and 32 are respectively attached to the long side edges of the connector insertion opening 12 formed in the panel board 11.

The shield pieces 31 and 32 have the same structure, so the shield piece 31 will be explained. The shield piece 31 has a clamping part 33 that elastically clamps one side edge of the opening 12 of the panel board 11, and a pressure contact part 34 that resiliently presses the metal cover 15 of the mating connector from the outside.
It becomes more. The holding part 33 has an elastic plate that is folded in half, has a bulge in the middle part, and has a U-shape with narrowed spacing between both end edges, so that the panel board 11 is elastically be caught between targets. This one edge portion 33b
A press-contact part 34 is connected and extended integrally with the press-contact part 34, and the press-contact part 34 is extended diagonally toward the folded part side of the clamping part 33, and the press-contact part 34 is connected to the end edge of the press-contact part, that is, the press-contact edge that comes into pressure contact with the mating metal cover. 34a is further folded outward as necessary. The shield piece 31, the clamping part 33, and the pressure contact part 34 are integrally formed by, for example, bending a rectangular elastic metal plate.

Such shield pieces 31 and 32 are attached to the holding part 33
As shown in FIG. 4, the length substantially matches the length of the long inner peripheral edge of the opening 12, and the long peripheral edge is elastically sandwiched through the opening. At this time, the distances L _{1 and} L 2 from the contact point between the panel plate 11 and the edge portions 33a and 33b of the clamping portion 33 to the periphery of the opening 12 are such that _{L 1 is} larger. As a result, shield pieces 31, 3
2 is attached to the panel plate 11, as shown in FIG.
The two parts become open to each other as shown in FIG.

When the mating connector 14 is attached to the connector main body 13 in this state, the clamping part 33 is pressed against the panel plate 11 by the opening peripheral edge of the metal cover 15, and the clamping part 33 is held in a clamping posture to clamp the inner peripheral edge of the opening 12. Therefore, the shield pieces 31 and 32 change.
The press-contact parts 34 approach each other, and as shown in FIG.
Both sides of 5 are elastically pressed together. As a result, the metal cover 15 is attached to the pressure-welded edges 34a of the shield pieces 31 and 32.
The edge portions 33a, 3 of the shield piece against the panel plate 11 are in contact with the clamping portion 33 that is pressed against the
3b, the panel plate 11 and metal cover 1
5 are electrically connected, and in this case, the entire long side surface of the metal cover 15 is connected to the panel board through the shield piece. Therefore, sufficient electromagnetic shielding can be provided over almost the entire connector coupling portion.

Furthermore, the shield pieces can be made by bending an elastic plate, and if this is simply held by sandwiching it against the panel plate through the opening 12, and then the connector body 13 is attached to the panel plate 11, the shield pieces 31 and 32 can be made from the panel plate. There is no risk of it coming off the board, and when the mating connector 14 is removed, the pressure welding portions 34 of both shield pieces can be removed as shown in FIG.
The shield pieces 31 and 32 do not get in the way when the mating connectors 14 are opened and mated, and when the mating connectors are attached and mated, the shield pieces 31 and 32 elastically press against both sides of the metal cover 15, making good contact. It is possible to perform electromagnetic shielding. Therefore, there is no need to tighten screws each time the connector is removed.

[Brief explanation of drawings]

Figures 1 and 2 are schematic perspective views showing a conventional connector shield structure, Figure 3 is a sectional view showing an example of the connector shield structure according to this invention, and Figure 4 is a shield piece attached to a panel board. FIG. 5 is a perspective view showing an example of a shield piece, and FIG. 6 is a cross-sectional view showing a state in which a mating connector is coupled in the shield structure of the connector according to this invention. 11: Panel board, 12: Opening for connector insertion,
13: Connector body, 14: Mating connector, 1
5: Metal cover of the mating connector, 31, 32: Shield piece, 33: Clamping part of the shield piece to the panel plate, 34: Pressure contact part of the shield piece elastically contacting the mating connector metal cover.

Claims (1)

[Scope of Claim for Utility Model Registration] Consists of a connector body that is fitted and inserted into an opening in a panel board and a mating connector that is detachably fitted to the connector body, and the mating connector is coupled to the connector body. A connector in which a metal cover is provided on the mating connector so as to cover the outside when the mating connector is opened, has a U-shaped clamping part with a narrowed gap between the opposite edges, and the opening is closed by the opposite edges of the clamping part. The connector is fixed by elastically clamping the inner peripheral edge of the clamping part, and a gap is provided between the opening side of the connector coupling side of the clamping part and the panel plate, and the connector is fixed from one end edge of the clamping part to the panel board. an elastic metal plate with a press-contacting part extending facing the main body, and with the mating connector coupled to the connector main body, the holding part is pressed against the panel plate by the metal cover, and the press-contacting part comes into press-contact with the metal cover; The shield structure of the connector is provided with a shield piece consisting of: