JPH08162783A - Incorrect insertion prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] The size of the power supply unit, the size of the connector, and the mounting position of the connector are all the same in the power supply panel by the plug-in method of the power supply unit, but the voltage of each unit is different and other than the specified voltage. This is an erroneous insertion prevention device that prevents the power supply unit from being inserted. [Structure] To distinguish each voltage of the power supply unit so that it cannot be inserted into a place other than the specified voltage, a convex part is provided on the insertion side and a concave part is provided on the receiving side, and the convex part is inserted on the insertion side together with the panel removal handle. Tightened and fixed to the panel. Fix parts that do not require convex parts with parts that do not have convex parts. Each voltage can be classified by changing the number of convex parts and the mounting position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug-in unit type erroneous insertion prevention device used in electronic equipment.

[0002]

2. Description of the Related Art One embodiment of a conventional device will be described with reference to FIG.

There is an insertion portion 4 for inserting the substrate 2 attached to the panel 1 into the connector 3, and a slit 6 is provided between the contact patterns 5 in the same direction as the insertion direction, and the connector 3 is also the same. A groove 7 is provided on the outer surface of the position, and a hat-shaped stopper 8 is inserted into this groove. The structure is such that the slit 6 provided on the substrate 2 and the stopper 8 provided on the connector 3 can be inserted, and if the slit 6 and the stopper 8 are misaligned, they cannot be inserted.

[0004]

Since the division according to the function of the conventional device is performed by changing the position of the slit, the types of substrates are increased. Further, since the positions of the slit and the stopper are at the back of the receiving side, it cannot be visually confirmed that they are messy, and they may be forcibly inserted, which has a drawback that the stopper and the substrate are damaged. In order to remedy these drawbacks, the present device is provided with a pair of recesses and protrusions on either the insertion side or the receiving side so that the recesses and protrusions can be inserted because the protrusions are recessed.

By providing the burdock portion at the insertion port, the burdock can be seen at a glance and it cannot be forcibly inserted, and the parts are not damaged. By providing a single to a plurality of concave portions and convex portions, the substrate can be made common.

[0006]

In order to achieve the above-mentioned object, this apparatus has a convex part on the insertion side and a concave part on the receiving side. On the insertion side, a convex part was fastened together with the panel insertion / removal handle and fixed to the panel. The parts without convex parts were fastened with parts without convex parts. Kango was carried out by the mounting position and the number.

[0007]

As a result, if the concave portion and the convex portion are entangled, it is possible to prevent the insertion by mistake.

It is possible to use only one type of substrate by combining one to a plurality of concave and convex portions, and to make the substrate common. By providing the concave portion and the convex portion at the insertion opening, it was possible to confirm at a glance that the bulge was not present, and it was not forcibly inserted, and the parts were not damaged.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of this device will be described below with reference to FIG. 1 is a panel, 2 is a substrate, 3 is a handle, 4 is a pin, 5 is a screw, 6 is a pin guide, and 7 is a shelf.

This operation will be described below. The panel 1, the substrate 2, the handle 3, the pin 4, the screw 5, and the pin guide 6 are one unit. The components numbered 1 to 5 are assembled as a power supply unit 15, and the pin guide 6 is attached to the shelf board 7.

The substrate 2 is attached to the panel 1, and the handle 3 for inserting / removing and the pin 4 are tightened together and fixed to the panel 1. Pin 4
Tighten with screws 5 if unnecessary. Handle 3 and pin 4
Are tightened together so that the screw 5 is not exposed in the table, but both can be fixed by tightening with the screw 5. However, the screw portion of the pin 4 becomes a male screw when tightened together with the handle 3, and becomes a female screw when tightened with the screw 5. A hole through which the pin 4 passes is formed in the facing pin guide 6 to which the pin 4 is attached, and the pin guide 6 is attached to the insertion opening. When the holes of the pin 4 and the pin guide 6 are complicated, the power supply unit 15 can be inserted into the shelf board 7. FIG. 2 is a detailed view of the relationship between the pin 4 and the pin guide 6. A circle mark in the drawing indicates that the holes of the pin 4 and the pin guide 6 were entangled. Regarding the positions of the holes of the pin 4 and the pin guide 6, one pin is provided at a different position in each of the power supply units 8 to 11 and the insertion positions 8'to 11 ',
At the insertion positions 12 'to 15', the two pins 4 are attached at different positions. For example, 8'to 11 'are arranged from the left to the upper left, upper right, lower left, lower right, and 12' to 15 'are arranged from the left to upper, left, upper and lower left, upper left / lower right, upper right / lower left. .

As described above, the division of the voltage and the insertion position are determined by making different combinations of the number of pins and the mounting position. Although the pin 1 is fixed on the panel 1, it may be fixed on the opposite side (tip) of the panel 1, and the method of using five or more pins 4 or the mounting pitch of the pins 4 l ₁ , l ₂ , l Changing ₃ and pulling 3 and pin 4
It is also conceivable to fix the. It is also conceivable to provide the pins 4 with the substrate 2 interposed therebetween as shown in FIG. This device is especially effective for preventing upside-down insertion when inserting a single item. By fixing the pin 4 to the panel 1 and providing the pin guide 6 at the insertion port, the Japanese dragonfly can be confirmed at a glance.

[0013]

As an effect, only the designated voltage location can be inserted. Since the convex parts and the concave parts can be visually confirmed, the parts are no longer forcibly inserted even when it is difficult to avoid damage to the parts. It is possible to divide the voltage by combining convex parts and concave parts, and it has been possible to standardize the board.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present device.

FIG. 2 is a shelf board diagram showing the number and positions of the burial parts in the case of a plurality of units.

FIG. 3 is a perspective view of an erroneous insertion prevention device in the case of a single unit.

FIG. 4 is a perspective view of a conventional incorrect insertion prevention device.

[Explanation of symbols]

 1 power panel 2 board 3 handle 4 pin 5 screw 6 pin guide

Claims (2)

[Claims] 1. An electronic unit comprising a board on which an electronic component and a connector are mounted, a connector, and a housing provided with rails, wherein guide pins are arranged at upper and lower ends of the board, and the guide pin of the housing is provided. An erroneous insertion prevention device characterized in that a guide hole is provided at a position opposite to. 2. The erroneous insertion prevention device according to claim 1, wherein a plurality of the guide pins and the guide holes are provided, and the number and positions of the guide pins and the guide holes are changed between the plurality of boards. apparatus.