JPH0743974Y2 - Structure to prevent incorrect insertion of connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an erroneous insertion prevention structure for a connector, and more particularly to an erroneous insertion prevention structure for mounting a connector having a shell on a panel.

[Prior Art] Conventionally, as a mounting structure for mounting a connector with a cable or the like on a panel in an electronic device or the like, for example, there is one as shown in FIG. In this example, the connector body 1a to which the cable 3 is connected by soldering or crimping, and the connected cable 3 are fixed and the connector body 1a is fixed.
A structure in which a first connector is constituted by a shell 2 for electrically shielding 1a and is fitted to a corresponding second connector 5 mounted on a panel 4 as shown in FIG. It is taken.

In this conventional example, each connector and shell are generally provided with an erroneous insertion prevention structure for preventing reverse insertion due to differences in the number of cores, but a plurality of connectors with the same number of cores are mounted. In this case, prevention of incorrect insertion between connectors has been performed by designating the mating connector by changing the outer label or the color of the main body.

[Problems to be Solved] However, the above-described conventional misinsertion prevention structure is not a structure that mechanically or physically prevents misinsertion, and requires an artificial act of visual confirmation by the installation operator.
When mounting a plurality of the same connectors on the panel, there is a drawback that it is easy to make an erroneous insertion.

[Means for Solving the Problems] The erroneous insertion prevention structure for a connector according to the present invention includes a first connector having a connector body and a shell attached to the connector body, and a fitting port. And a panel in which a second connector into which the connector is inserted is attached to the fitting opening, and the shell is a protrusion whose tip protrudes from an end in the insertion direction of the connector body, Has a protrusion that is narrower than the width of the shell and a concave groove provided at an arbitrary position of the end of the protrusion in the insertion direction, and protrudes from the edge of the fitting port of the panel. The protruding position is a position corresponding to the recessed groove when the connector body of the first connector is inserted into the second connector, and the protruding direction is substantially the same as the inserting direction of the first connector. The direction orthogonal to each other, When the connector 1 is inserted, the connector further has a convex projection that fits in the concave groove.

[Embodiment] Next, an embodiment of the erroneous insertion prevention structure for a connector of the present invention will be described with reference to the drawings.

FIG. 1 is an external view showing an embodiment of the present invention. First
As shown in the figure, the connector body 1a of the connector 1 of FIG.
A cable 3 is connected to the cable, and a shell 2 is attached for the clamp of the cable 3 and the shield of the connector body 1a.

On the other hand, a plurality of fitting openings 8 are formed in the panel 4, and the mating second connectors 5 that fit with the connector body 1a described above are attached to the fitting openings 8. In the example of FIG. 2, three second connectors 5 are provided on the panel 4 side, and three first connectors 1 are respectively fitted to these.

At the end of the shell 2 on the fitting opening side of the connector body 1a, a protrusion 6 is provided in the insertion direction (direction A in FIG. 2), and the protrusion 6 is provided with a concave groove 7 cut out. There is. First
As is apparent from the figure, the tip of the protrusion 6 projects beyond the end of the connector body 1a in the insertion direction, and the width of the protrusion 6 is narrower than the width of the shell 2.

On the other hand, an upper wall portion of the fitting opening 8 of the panel 4 is provided with a convex projection 9 that fits into the concave groove 7 of the shell 2.
The position of the groove 7 of the protruding portion 6 and the position of the protrusion 9 provided in the fitting opening 8 of the panel 4 are arbitrarily changed for each of the corresponding first connector 1 and second connector 5. , Only the corresponding first connector 1 and second connector 5 can be inserted, and when the positions of the groove 7 and the protrusion 9 do not correspond, the first connector 1 cannot be inserted into the panel 4. It has become.

Instead of the protrusion 9 provided on the panel 4, a component having a similar convex shape may be attached to the second connector 5.

[Effects of the Invention] As described above, in the connector mis-insertion prevention structure according to the present invention, the shell having the protrusion for preventing mis-insertion and the connector body are separated, so that the connector body is normally used. While it can be used as it is, the material of the shell can be freely selected. This has the effects of facilitating manufacturing and having excellent durability. If the protrusion is damaged or the polarity of the connector is changed, only the shell needs to be replaced.
This has the effect of facilitating maintenance and replacement.

Furthermore, by making the tip of the protrusion project more than the end in the insertion direction of the connector body, even if you try to insert the wrong connector, the connector will be locked before the end faces of the connectors contact each other. Thus, it is possible to completely prevent erroneous contact between the connectors.

[Brief description of drawings]

FIG. 1 is an external perspective view of a first connector according to an embodiment of the present invention, FIG. 2 is a perspective view of an erroneous insertion prevention structure according to an embodiment of the present invention, and FIG. 3 is an external view of a conventional connector with a shell. FIG. 4 is a perspective view of a conventional connector mounted on a panel. 1: 1st connector, 1a: Connector body, 2: Shell 3: Cable, 4: Panel, 5: 2nd connector 6: Protrusion, 7: Groove, 8: Mating port 9: Protrusion

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Masashi Shimada 2-33-1, Tamagawadai, Setagaya-ku, Tokyo Sumitomo 3M Co., Ltd. (56) References 57-58284 (JP, U) Actually developed 60-179075 (JP, U) Japanese Patent Sho 39-20965 (JP, B1)

Claims (1)

[Scope of utility model registration request] 1. A first connector having a connector main body and a shell attached to the connector main body, a fitting opening is formed, and a second connector into which the first connector is inserted is attached to the fitting opening. The shell is a projection whose tip projects from the end in the insertion direction of the connector body, the projection having a width narrower than the width of the shell, and the projection of the projection. A concave groove provided at an arbitrary position of an end portion in the insertion direction, and is provided so as to project from an end edge of the fitting opening of the panel, and the projecting position is such that the connector body of the first connector is the second body. Is a position corresponding to the concave groove when inserted into the connector, and the protruding direction thereof is a direction substantially orthogonal to the insertion direction of the first connector, and the concave shape is formed when the first connector is inserted. Convex to fit in groove Erroneous insertion preventing structure of a connector, characterized in that it further comprises an electromotive force.