JPH0646534B2 - Terminal cover for electrical equipment - Google Patents

Description

The present invention relates to a terminal cover of an electric device, which is easy to attach / detach and is suitable for being applied to a plurality of models by dividing and changing the size. Regarding

[Conventional technology]

For an electric device having an exposed terminal, a terminal cover that covers the upper surface of the device is used for the purpose of preventing electric shock. As shown in Japanese Utility Model Application Laid-Open No. 59-158253, the conventional structure has a good point that it does not require a connecting means such as a screw for mounting on a device,
The attachment / detachment method was a little complicated. Further, the size of the terminal cover is made to match the size of the device, and the number of types is required.

[Problems to be solved by the invention]

Conventionally, the terminal cover requires some connection means such as screwing to the main body of the device, and the mounting work is complicated. Some of them were devised so that no connecting means was required, but the attachment / detachment method was complicated. Further, if the size of the equipment is different, even if the mounting structure and the mounting portion are the same, it is necessary to prepare various types according to all models.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal cover for electric equipment which is easy to attach and detach and which can be integrated into various types.

[Means for solving problems]

The purpose is to form the terminal cover with a flexible plate, form L-shaped tongue pieces that face each other at approximately the center, and sandwich the side surface of the device with the tongue piece. This is achieved by engaging with a protrusion provided on the side surface. In this configuration, the dimension between the bending tips is smaller than the dimension between the side edges of the instrument so that the cut and raised tip is located in the central direction of the instrument and the bending line is located in the opposite direction from the center.

In addition, the size of the terminal cover should be set to the maximum size of multiple models, and a groove that can be folded and divided is provided on the surface at a position corresponding to the size of other models, so that one type of cover can be used. It can be adapted to the model.

[Action]

Since the terminal cover is cut and raised to a size smaller than the distance between the side edges of the device to form a curved portion, the bent portion elastically sandwiches and holds the device side surface when attached to the device. There is no rattling, and furthermore, the bent portion is locked to the protrusion provided on the side surface of the device and does not come off upward.

Here, the bending line is located in the opposite direction from the center of the device, and due to time-dependent deformation, the direction in which the bending part returns to its original shape acts in the direction of pinching the device, so a stable holding force is obtained. Is obtained.

Further, since the dividing groove is provided on the surface of the cover, it can be applied to a certain device as it is, and can be applied to other smaller devices by dividing it into a size suitable for the device. That is, a kind of terminal cover can be applied to a plurality of devices.

〔Example〕

An embodiment of the present invention will be described below. FIG. 1 shows a state in which a terminal cover 3 is attached to an electromagnetic switch formed by combining an electromagnetic contactor 1 and an overcurrent relay 2 as an example of electric equipment. The cover 3 is provided with a groove 3a having a "V" -shaped cross section at a position corresponding between the electromagnetic contactor and the overcurrent relay. If the groove is divided from this groove, the electromagnetic contact as shown in FIG. It can be applied only to vessels and can be sized appropriately. In this embodiment, the dividing groove is a continuous groove between the end faces, but it may be discontinuous. Further, the groove may be provided on both front and back surfaces. Next, the cover mounting structure will be described with reference to FIGS. Terminal plate 11 of electromagnetic contactor
A protrusion 12a for locking a cover, which will be described later, is formed on the side surface of the insulating base 12 that is fixed. On the other hand, the terminal cover 3
Are tongues 3b and 3c that are bent in an "L" shape so as to face each other in a substantially central portion with a resin flexible plate. There is a relationship of W1 <l, W2> l with respect to the dimension l between the barriers 12b, and the tongue piece 3c has a width dimension W2. Further, the bending dimension S is made narrower than the dimension Y of the mounting portion 12c of the insulating base. When the cover is attached, it is elastically deformed and attached by holding both ends of the cover as shown by the chain double-dashed line in FIG. After mounting, the cover is locked to the protrusion of the insulating base to prevent upward pullout due to the relationship of W2> l. Further, since the cover sandwiches the insulating base by the elastic force having the relationship of S <Y, there is no rattling. At the time of removal, the deformation may be performed in the same manner as at the time of mounting to release the engagement.
In addition to the tongue piece 3b, the cover of this embodiment has a window portion 12d of the insulating base.
A tongue piece 3c for covering the same is used also as a dustproof cover for preventing foreign matter from entering.

According to this embodiment, the cover can be easily attached and detached. It can also be used as a dustproof cover.

It can be applied to two models with different dimensions by further dividing.

〔The invention's effect〕

According to the present invention, there is an effect that the terminal cover can be easily attached and detached, and an effect that the types can be integrated.

[Brief description of drawings]

FIG. 1 is a front view showing an example in which a terminal cover according to one embodiment of the present invention is attached to an electromagnetic switch, and FIG. 2 is a terminal cover according to one embodiment of the present invention divided into grooves to be attached to an electromagnetic contactor. FIG. 3 is a side cross-sectional view showing an example of a groove shape, FIGS. 4 and 5 are plan views and side cross-sectional views showing a locking portion formed in an electromagnetic contactor, respectively. FIG. 6 is a perspective view of the terminal cover in one embodiment of the present invention, and FIG. 7 is a side view of the terminal cover in one embodiment of the present invention. 1: Electromagnetic contactor, 2 ... Overcurrent relay, 3: Terminal cover,
3a: groove, 3b, 3c: tongue piece, 12a: protrusion

Claims (2)

[Claims] 1. A terminal cover of an electric device mounted on an electric device having an exposed terminal, wherein the electric device has a protrusion formed on a side surface thereof, and the terminal cover cuts and raises a part of a flexible plate. Is configured so that the bending line is located in the center direction of the device and in the opposite direction from the center, and the dimension between the bending tips is slightly smaller than the side end size of the device, from two directions. However, when attached, elastic force acts on the bent part,
A terminal cover for an electric device, which is attached by being locked to the aforementioned protrusion. 2. The terminal cover for an electric device according to claim 1, wherein the terminal cover is provided with a groove on the surface which can be divided by bending.