JPS5840291B2 - electrical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrical device, and particularly to an electrical device in which terminals protruding from the device body are inserted into appropriate sockets.

Conventionally, this type of electrical equipment has had the disadvantage that if the terminal is simply inserted into a socket, it is susceptible to vibrations and shocks, and these loads are directly applied to the terminal.

In particular, for electrical equipment that is tall and unstable, even if the connecting metal fittings that have been provided so far strengthen the installation, they cannot withstand vibrations and shocks, resulting in damage to the terminal socket. had.

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide an electrical device that can be reliably mounted on a mounting panel when the electrical device is mounted on a mounting panel or the like.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are exemplary embodiments.

The drawing shows a solid state relay which is an embodiment of the present invention, the casing 1 is made of aluminum with good heat dissipation, the periphery is formed with unevenness for heat dissipation, and the interior includes a triac and a control circuit (not shown). A radiation fin 5 is fixed to the upper part with screws 4.

The terminal block 6 has a predetermined number of terminals 7 and 8 fixed by insert molding, and is positioned at the opening of the casing 1, and the mounting plate 11°11 is inserted into the stepped portions 9, 9 and the edge of the opening of the casing 1. After that, screw 15°15 from mounting hole 12.12.
is fixed by screwing into the screw hole 2 of the casing 1, and is prevented from being removed by the protrusion 10 abutting the mounting plate 11.11 from inside.

Further, the mounting plate 11.11 has a protrusion 1 projecting downward.
3.13 is formed, and an insertion hole 14 of 18.18 is also formed.

This nord state relay is installed by inserting the terminals 7 and 8 into sockets (not shown) fixed in the mounting holes 20 of the panel 19, thereby establishing an electrical connection between the two.

On the other hand, the holding plate 16 is inserted into the groove (not shown) of the radiation fin 5 and placed on the upper surface of the casing 1, and the mounting plate 18. The mounting plate 11. ．． The mounting is fixed on the panel 19 by screwing into the screw hole 21.21 of the panel 19 through the insertion hole 14 of 11.

At this time, the protrusion 13.13 of the mounting plate 11.11 comes into contact with the mounting panel 19, and the tightening force from the terminal N8, 1B is received by this protrusion 13.13.
．． 8 and a socket (not shown) merely provide electrical connection.

The same applies if vibration or impact is applied to this relay, and the load will be received by the protrusions 13.13.

Before using this relay, install it by inserting the bolt 18゜18 through the hole 17.17 of the holding plate 16 and into the insertion hole 14 of the mounting plate 11゜11. A ring is provided, and the installation is done with bolts 18 and holding plate 16.
Prevent it from falling off.

Note that the protrusions 13 may be provided not only on two sides but also on four sides.

In the present invention, when attaching a terminal block to a casing, a pair of U-shaped mounting plates are loosely fitted into the gap between the step provided on the periphery of the terminal block and the casing, and then the U-shaped mounting plates are attached to the casing. Since it is fixed with screws, the terminal block can be fixed to the casing without damaging it, and the U-shaped mounting plate has a protrusion that presses against the mounting panel and also has holes for mounting bolts. When installing electrical equipment on a mounting panel, the protrusions of the U-shaped mounting plate are pressed into contact with the mounting panel, so the elasticity of the U-shaped mounting plate not only ensures secure installation, but also protects against vibrations after installation. The U-shaped mounting plate absorbs vibrations, eliminating the need for excessive loads to be applied to the terminals.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of a solid state relay according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the solid state relay shown in FIG. 1... Casing, 7, 8... Terminal, 13... Projection, 18... Mounting with bolt, 19... Mounting on panel.

Claims (1)

[Claims] 1. A terminal block having an outwardly protruding terminal is arranged in an opening of a casing to form a device body, and the device body is attached with a mounting bolt through a mounting portion provided in the casing. In an electrical device that is to be mounted on a panel, a pair of U-shaped mounting plates having a protrusion that presses against the mounting panel on the lower side and having the mounting bolt mounting holes are connected to a stepped portion provided on the periphery of the terminal block and An electrical device comprising a screw that loosely fits into a gap between the screw and the casing and fixes the U-shaped mounting plate to the casing.