JPS6333494Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electrical appliance with an improved connection terminal mounting structure.

It is desirable that terminal fittings for drawing out lead wires of electromagnetic coils and leads of contacts of electrical appliances to the outside are easy to install and easy to connect to external circuits without falling off. For this purpose, generally, as shown in FIG.
As shown in Figure 2, the case 2 of the electrical appliance is
Most cases are configured so that the case 2 is inserted into a hole 2a provided in the case 2, and the upper side 1a of the case 2 is inserted into the hole 2a.
Then, screw the terminal screw 3 into this hole 1b to sandwich the electric wire and connect it to an external circuit.
It serves as a set screw to prevent the case from falling off and falling into the case 2. A lead wire 7 of an electromagnetic coil 6 wound around a winding frame 5 of the device main body 4 is connected to the lower side 1c of the terminal fitting 1. The winding frame 5 also serves as a spring receiver and receives a return spring 8 of a movable contact (not shown).

This configuration of the terminal fitting has the drawback that the terminal fitting comes off from the case when the terminal screw is removed, and often falls into the case. Furthermore, even if the terminal fitting does not fall off, the terminal fitting moves when tightening the electric wire with the terminal screw, causing it to wobble, making it difficult to tighten the terminal screw.

The object of this invention is to eliminate the above-mentioned drawbacks, and to provide an electrical appliance equipped with a terminal fitting that can be easily attached to a case, does not fall off unnecessarily, and has good workability.

This purpose, according to the present invention, consists of a device body, a case that houses the device body, an upper side that is attached along the inner wall of the case and has a terminal screw hole that protrudes outside through a hole in the side wall of the case, and a lower side of the device that is attached to the case that houses the device body. In an electric appliance equipped with a Z-shaped terminal fitting electrically connected to the main body, the Z-shaped terminal fitting is formed by cutting and raising the Z-shaped terminal fitting on the upper side of the Z-shaped terminal fitting, and extends inward of the case to connect to the appliance main body. This is achieved by providing abutting extension projections.

Next, one embodiment of the present invention will be described in detail based on the drawings. In FIG. 3, an extension protrusion (stopper) 1d is provided on the upper side 1a of the terminal fitting 1 bent in a Z-shape, where the terminal screw hole 1b is provided, extending in the opposite direction of the hole 1b. This stopper 1
d may be provided by cutting and raising part A of the connecting side connecting the upper side and the lower side of the Z-shaped metal fitting. When the upper side 1a of this terminal fitting 1 is inserted into the hole 2a provided in the case 2 of the electric appliance as shown in FIG.
The stopper 1d of the electromagnetic coil 6 is configured so as to come into contact with its fixed portion (in the figure, a spring receiver that is a part of the winding frame 5 of the electromagnetic coil 6). By doing this, after the instrument body is fixed to the case, the terminal fitting will not fall off from the case even if the terminal screw is removed. Also, when screwing in terminal screws, there is no wobbling and workability is good. The lead wire 7 of the electromagnetic coil is connected to the lower side 1c of the terminal fitting.

As mentioned above, the electrical appliance based on this invention is
In electrical appliances equipped with a terminal fitting that is bent into a Z-shape and has its upper side protruding from the hole in the case in order to lead out the lead wire of an electromagnetic coil, etc., the upper side of the terminal fitting should be turned in the opposite direction to the terminal screw hole. This is extended to form a stopper, which is placed in contact with the fixed part of the device body installed inside the case.The stopper of the terminal fitting is held down by the fixed part of the device body, so even if the terminal screw is removed, the terminal fitting does not come into contact with the fixed part of the device body. Workability is good because the terminal fittings do not fall out of the case holes and the terminal fittings do not wobble. Therefore, the work can be done reliably in a short time.

Further, according to the present invention, the device main body and case can be changed by simply providing an extension protrusion formed by cutting and raising the Z-shaped terminal fitting on the upper side of the Z-shaped terminal fitting, which extends inward of the case and comes into contact with the device main body. Therefore, the conventional appliance body and case can be used as is, and Z
It has the advantage that it can be applied simply by replacing the letter-shaped terminal fittings.

[Brief explanation of the drawing]

Fig. 1 shows a terminal fitting of a conventional electric appliance, Fig. 2 is a vertical cross-sectional view of the main part of a conventional electric appliance, Fig. 3 shows a terminal fitting of an electric appliance according to this invention, and Fig. 4 shows a terminal fitting of an electric appliance according to this invention. FIG. 3 is a vertical cross-sectional view of main parts. 1... Z-shaped terminal fitting, 1a... Upper side of terminal fitting, 1b... Screw hole of terminal fitting, 1c... Lower side of terminal fitting, 2... Case of electrical appliance, 2a... Terminal hole of case, 4...The instrument body.

Claims (1)

[Scope of utility model registration request] A device main body, a case that houses the device main body, and a Z-shaped device that is attached along the inner wall of the case and has a terminal screw hole, the upper side of which protrudes outside through a hole in the side wall of the case, and the lower side of which is electrically connected to the device main body. In an electric appliance equipped with a letter-shaped terminal fitting, an extension protrusion is provided on the upper side of the Z-shaped terminal fitting, which is formed by cutting and raising the Z-shaped terminal fitting and extends inward of the case and comes into contact with the appliance body. Featured electrical appliances.