JP2002152918A - Electrical apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate fitting work, to supporting frames, of a heavy fitting board to which electrical good have been fitted beforehand. SOLUTION: To support the fitting board 7 with the support frames 8 once and unite them, the fitting board 7 is provided with hooking portions 7a. Slits 8a are formed in the support frames 8. To unite the fitting board 7 to the support frames 8 supporting the fitting board 7 with the support frames 8, holes 8b for inserting screws 9 are formed in the support frames 8, and tapped holes 7b are formed in the hooking portions 7a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device, and more particularly to an electric device in which electric components are mounted on a mounting plate in advance, and the mounting plate, which has become heavier after mounting, can be easily mounted on a support frame.

[0002]

2. Description of the Related Art An electric device such as a switchboard or a control panel has a mounting plate provided inside a housing via a support frame, and electric components are mounted on the mounting plate.

FIG. 7 shows a structure for mounting a mounting plate on a support frame.
As shown in Conventional Example 1 shown in FIG. 1, a bolt 2 is inserted into a hole 1a formed in a mounting plate 1, and this bolt 2 is inserted into a hole 3a formed at a constant pitch in a support frame 3, and a nut (not shown) is inserted into the bolt 2. And a clip nut 4 to which a nut (not shown) is fixed at the back side where the hole 4a is formed, as in the conventional example 2 shown in FIG. Some bolts 2 are inserted into the holes 1a of the plate 1 and are screwed into nuts (not shown) of the clip nuts 4. In this case, to attach the wiring duct 5 shown in FIG. 9, the wiring duct 5 is attached to the attachment plate 1 via the stay 6 and the screw 6a. Here, the wiring duct 5 includes a duct body 5a and a cap 5b.

[0004] As a procedure for mounting the electric component, if the electric component is mounted on the mounting plate after the mounting plate is mounted on the support frame, the electric component is mounted at a predetermined position after entering the inside of the housing. Therefore, the mounting posture is poor and the assembling work time is prolonged. For this reason, it is more efficient to mount the electric components on the mounting plate in advance on the work table outside the housing, for example, and then mount the mounting plate on which the electric components are mounted to the support frame.

[0005]

However, since the heavy mounting plate for mounting the electric components is mounted on the support frame via bolts or the like, it takes a lot of labor to hold the bolts until they are screwed.

[0006] Therefore, an object of the present invention is to provide an electric device which solves such a problem.

[0007]

According to a first aspect of the present invention, there is provided an electric apparatus having a mounting plate provided inside a housing via a support frame, and an electric component mounted on the mounting plate. 3. The electric device according to claim 2, wherein the mounted electric device includes a temporary fixing means for temporarily fixing the mounting plate to the support frame, and a coupling means for coupling the mounting plate to the support frame. The configuration according to claim 1, wherein one of the support frame and the mounting plate has a hook portion protruding therefrom, and the other engages with the hook portion so that the relative position between the one and the other can be improved. The temporary fixing means is formed by forming an engaging portion for restraining a vertical movement of the electrical device.
A slit into which the hook portion can be inserted is formed, and the configuration of the electric device according to claim 4 is that, in claim 2, a protrusion that hooks on the hook portion is formed as the engaging portion. According to a fifth aspect of the present invention, in the configuration of the electric device according to the second aspect, a convex portion is formed inside the hook portion, and a concave portion is formed at a position corresponding to the convex portion on the other member. It is characterized in that the connecting means is used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an electric device according to the present invention will be described. (A) First Embodiment First, a first embodiment will be described with reference to FIG. As shown, four hooks 7a are formed at four corners of the mounting plate 7 by press working. The hook 7a is formed so as to protrude to one side of the mounting plate 7, and a tap hole 7b is formed in the hook 7a as shown in FIG.
On the other hand, a slit 8a large enough to allow the hook 7a to be inserted is formed at a position corresponding to the hook 7a in the support frame 8, and a hole 8 for inserting a screw is provided below the slit 8a.
b is formed. That is, the hook 7a and the slit 8
a constitutes a temporary fixing means, and the screw 9, the hole 8b and the tap hole 7b constitute a coupling means.

In order to attach the mounting plate 7 to the support frame 8, the hook 9a is inserted into the slit 8a and the screw 9 inserted into the hole 8b while being hooked as shown in FIG. Screw it in. Since the hook 7a is hooked below the slit 8a, the mounting plate 7 is supported so as not to drop, and it is not necessary to support the mounting plate 7 manually while screwing the screw 9 into the tap hole 7b. (B) Embodiment 2 Next, Embodiment 2 is shown in FIG. This is because the member forming the hook portion and the member forming the slit are different from those in the first embodiment.
It is a replacement of the case. That is, the hook 8 c and the hole 8 d are formed in the support frame 8, and the slit 7 c and the tap hole 7 d are formed in the mounting plate 7. In this case, the upper surface of the slit 7c of the mounting plate 7 rests on the hook 8c.

[0010] The other configuration and operation are substantially the same as those of the first embodiment, so that the description will be omitted. (C) Third Embodiment Next, a third embodiment is shown in FIG. In this embodiment,
The temporary fixing means is provided only on one side of the mounting plate.

As shown in the drawing, the mounting plate 7 is bent in an L-shape on only one side, and a temporary fixing means is provided between the bent portion 7e and the support frame 8. The whole of the bent portion 7e is temporarily fixed to one of the support frames 8 so as to be supported, whereby the entire mounting plate 7 is positioned.

As a combination similar to that of the first embodiment, a single hook portion 7a shown in FIG. 3B is formed in the bent portion 7e, while a slit 8a is formed in the support frame 8. Next, as a coupling means, a hole 7f for inserting the screw 9 is formed in the mounting plate 7, while a hole 8e is provided in each support frame 8, and a portion corresponding to the hole 8e is not shown. The clip nut 4 to which the nut is fixed is mounted.

The hook 7a of the mounting plate 7 is formed by a slit 8
When the hand is let go through and is released, the hook 7a is hooked, and the entire surface of the bent portion 7e abuts on the support frame 8 by the weight of the mounting plate 7, whereby the mounting plate 7 is positioned with respect to the support frame 8. This positions the holes 7f and 8e, so that
A screw 9 is inserted into each of the holes 7f and 8e and screwed into a nut (not shown) of the clip nut 4. (D) Fourth Embodiment Next, a fourth embodiment will be described with reference to FIG. 2, a hook 8c is formed in the support frame 8, and a tap hole 8f is formed in a portion perpendicular to the portion where the hook 8c is formed. On the other hand, projecting portions 7g are formed by bending the upper ends of both ends of the mounting plate 7 by 90 ° in the same direction. A hole 7h is formed at a position corresponding to the tap hole 8f.

The projections 7g on both sides of the mounting plate 7 are hooked on the hooks 8c of the respective support frames 8 and then released. Then, the mounting plate 7 is positioned with respect to the support frame 8, and the hole 7h is positioned with respect to the tap hole 8f. Four screws (not shown) are inserted into the hole 7h and screwed into the tap hole 8f. As shown in FIG.
Can also be attached. (E) Fifth Embodiment Finally, a fifth embodiment will be described with reference to FIG. In this embodiment, a part of the first embodiment is changed, and only different parts will be described.

In the first embodiment, the screw 9 is used as the coupling means, but the screw 9 is not required here. Further, instead of the tap hole 7b, a protrusion 7i smaller than the hole 8b is formed in the hooking portion 7a. The convex portion 7i corresponds to the hole 8b as a concave portion.

In such an electric device, when the hook 7a is inserted into the slit 8a and the mounting plate 7 is lowered, the elastic force of the hook 7a increases the distance g between the hook 7a and the mounting plate 7. Then, the support frame 8 is inserted between them, and then the projection 7i is inserted into the hole 8b, and the mounting plate 7 is attached to the support frame 8.
Are combined.

Note that a recess may be formed instead of the hole 8b. Further, the fifth embodiment is one in which the convex portions and the concave portions are applied to the first embodiment, but can also be applied to the second embodiment.

[0018]

As can be seen from the above description, claim 1
According to the electric equipments of (1) to (5), the temporary fixing means is provided, so that even when the mounting plate on which the electric components are mounted in advance is mounted on the support frame, the mounting plate may be temporarily fixed on the support frame and connected by the connecting means. Until the conventional coupling, the labor for supporting the heavy mounting plate is not required. For this reason, the work of mounting the mounting plate and the electric component can be performed by one person. In addition, since the mounting plate is positioned with respect to the support frame by the temporary fixing, it is not necessary to align holes for bolting.

[Brief description of the drawings]

FIG. 1 relates to a first embodiment of an electric device according to the present invention,
(A) is a perspective view of a main part, and (b) is a view taken on line AA of (a).

FIG. 2 is a perspective view of a main part of an electric device according to a second embodiment of the present invention.

FIG. 3 relates to Embodiment 3 of the electric apparatus according to the present invention,
FIG. 2A is a perspective view of a main part, and FIG.

FIG. 4 is a perspective view of a main part of an electric device according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional plan view illustrating a case where a wiring duct is provided in an electric device according to a fourth embodiment of the present invention.

FIG. 6 relates to Embodiment 5 of the electric apparatus according to the present invention,
(A) is a perspective view of a main part, and (b) is a cross-sectional view showing a hooking part cut away.

FIG. 7 is a perspective view showing a main part of a first conventional example of an electric apparatus.

FIG. 8 is a perspective view showing a main part of a second conventional example of an electric apparatus.

FIG. 9 is a cross-sectional plan view showing a state in which a wiring duct is attached to Conventional Example 2 of an electric device.

[Explanation of symbols]

 7 Mounting plate 7a, 8c Hook 7c, 8a Slit 7g Projection 7i Projection 8 Support frame 8b Hole 9 Screw

Claims (5)

[Claims] 1. An electric device in which a mounting plate is provided inside a housing via a support frame and an electric component is mounted on the mounting plate, wherein a temporary fixing means for temporarily fixing the mounting plate to the support frame; Electrical means provided with coupling means for coupling the mounting plate to a support frame. 2. A protruding hook portion is formed on one of the support frame and the mounting plate, and the other engages with the hook portion and moves up and down relative to one another. 2. The electric apparatus according to claim 1, wherein an engaging portion for restraining the temporary fixing is formed as the temporary fixing means. 3. The electric device according to claim 2, wherein a slit into which the hook portion can be inserted is formed as the engaging portion. 4. The electric device according to claim 2, wherein a projection is formed as the engagement portion so as to be hooked on the hook portion. 5. The connecting means according to claim 2, wherein a convex portion is formed inside the hook portion, and a concave portion is formed at a position corresponding to the convex portion on the other member. Electrical equipment as described.