JPH11155207A - Panelboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panelboard having a box body, in which substrates having several kinds of shapes and sizes can be attached. SOLUTION: A panelboard is provided with a box body 1, which is provided with a bottom plate 4 and four peripheral side plates 5a-5b and has an opening 6 on one side, an attaching plate 2 which is attached to the bottom plate 4 in the box body 1 with its longitudinal direction nearly in parallel with the oppositely facing direction of one pair of side plates 5c and 5d and has a pair of projecting sections 7 and 8 which are separated from the bottom plate 4 by a prescribed distance and protruded in parallel with the bottom plate 4 perpendicular to the longitudinal direction of the plate 2, and a substrate 16 which is attached to the attaching plate 2 with first set screws 9 and mounted with electric equipment 11 incorporating a branch switch 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board such as a residential distribution board in which electric devices such as a main switch and a branch switch are mounted on a board and the board is housed in a box. It is.

[0002]

2. Description of the Related Art In a conventional distribution board of this type, a plurality of cylindrical substrate mounting portions having screw holes are protruded from a bottom plate of a box body, and a main switch, a branch switch, etc. The substrate on which the electric device is mounted is mounted, and a screw is screwed into a screw hole of the substrate mounting portion from the surface side of the substrate, thereby mounting the substrate on the box.

[0003]

However, this housing distribution board has a problem that the shape and size of the substrate to be mounted in the box are limited, and only one type of substrate can be mounted. . SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a distribution board which can mount substrates of several types and sizes in a box.

[0004]

According to a first aspect of the present invention, there is provided a distribution board comprising: a box having a bottom plate and four side plates and having an opening on one side; and a pair of a side plate attached to the bottom plate in the box body. An attachment whose longitudinal direction extends substantially parallel to the opposing directions, is separated from the bottom plate by a predetermined distance, and has a pair of protrusions projecting in a direction perpendicular to the extending direction and parallel to the bottom plate. And a board attached to the mounting plate by a first mounting screw and to which an electric device including a branch switch is mounted.

According to the first aspect of the present invention, the board is attached to the mounting plate which extends in the direction of the pair of side plates and has a projection in the direction perpendicular to the extending direction. The shape can be simplified, substrates of various sizes can be attached, and the box can be shared. According to a second aspect of the present invention, in the power distribution panel according to the first aspect, a knockout hole for inserting an electric wire is formed in the bottom plate between the pair of the side plates and the protruding portion facing substantially parallel to the extending direction of the mounting plate. It was done.

According to the distribution board described in claim 2, according to claim 1,
In addition to the same effects as described above, the insertion work of the electric wire is facilitated. The distribution board according to claim 3 has the fixing portion in which the mounting plate is fixed to the bottom plate according to claim 1 or 2.
The protrusion is integrally formed on both sides in a direction perpendicular to the longitudinal direction of the fixing portion.

[0007] According to the distribution board according to the third aspect, the first aspect.
Alternatively, in addition to the same effects as those of the second aspect, since the projecting portions on both sides are integrally formed with the fixing portion, the fixing operation to the bottom plate becomes easy. The distribution board according to claim 4 is the distribution board according to claim 3, wherein the first screw hole into which the first mounting screw is screwed is formed.
A plurality of protruding portions are formed on the substrate so as to correspond to the branch switches arranged in the longitudinal direction of the mounting plate.

[0008] According to the distribution board according to the fourth aspect, the third aspect.
In addition to the same effects as described above, even if the size of the board varies according to the number of branch switches, the board can be attached by screwing the first mounting screw into the first screw hole as it is. In addition, the work of mounting the substrate becomes easy. According to a fifth aspect of the present invention, in the power distribution panel according to the fourth aspect, a first hooking piece hooked on one of the projecting portions is provided on the substrate.

According to the distribution board described in claim 5, according to claim 4,
In addition to the same effect as described above, the work of attaching the substrate is facilitated. According to a sixth aspect of the present invention, there is provided the distribution board according to the fifth aspect, wherein the substrate is attached to the substrate body to which the electric device is attached, and the first hook is attached to a side of the substrate body opposite to the electric device attachment surface. And a hook member provided with a piece.

According to the distribution board described in claim 6, according to claim 5,
In addition to the same effect as described above, by forming only the substrate body in a size corresponding to the number of branch switches, a common hooking member can be achieved. According to a seventh aspect of the present invention, in the power distribution panel according to the sixth aspect, a second hooking piece for hooking one end of the substrate main body is provided on the hooking member, and the substrate main body is connected to the second side at the other end side of the substrate main body. A second screw hole to be attached by a mounting screw is formed in the hook member.

According to the power distribution board described in claim 7, the power distribution board according to claim 6 is provided.
In addition to the same effects as described above, the board body can be attached to the hook member by the second mounting screw with one end of the board body hooked on the second hooking piece, and the mounting work of the board body can be easily performed. Become. According to an eighth aspect of the present invention, in the power distribution panel according to the seventh aspect, the second hooking piece is provided below the box of the hooking member.

According to the distribution board described in claim 8, according to claim 7,
In addition to the same effects as above, when the substrate main body is attached to the hook member, the substrate main body can be prevented from dropping, and the work of attaching the substrate main body can be further facilitated. According to a ninth aspect of the present invention, in the power distribution panel according to the seventh or eighth aspect, a portion of the hooking member facing the rear surface of the second hooking piece is cut out.

[0013] According to the distribution board of the ninth aspect, the seventh aspect of the invention provides the distribution panel.
Alternatively, in addition to the same effect as that of the eighth aspect, the substrate main body can be easily inserted into the position of the second hooking piece in the hooking member, and the mounting operation of the substrate main body becomes smooth. According to a tenth aspect of the present invention, in the power distribution panel according to the ninth aspect, a protruding portion is provided near the second hooking piece of the hooking member and one of the substrate bodies, and near the second hooking piece of the hooking member. And a recess provided on the other side of the substrate body to be fitted to the projection.

According to the distribution board of the tenth aspect, in addition to the same effect as the ninth aspect, when the second mounting screw is attached,
By fitting the concave portion and the convex portion, the end surface of the substrate main body on the second hooking one side can also be positioned, and lateral displacement between the hooking member and the substrate main body can be prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, the residential distribution board includes the box 1, the mounting plate 2, and the substrate 3. The box 1 includes a bottom plate 4 and four side plates 5a to 5d, and has an opening 6 on one surface. Further, as shown in FIG. 6, a knockout hole 12 for inserting an electric wire is formed in the bottom plate 4 between a pair of side plates 5a and 5b and the protruding portions 7 and 8 which are substantially parallel to the extending direction of the mounting plate 2. I have. These knockout holes 1
6 are arranged at three places as shown in FIG. 6, knockout pieces 12c for closing the knockout hole 12 are connected between a plurality of vertically elongated slits 12a by breaking connection parts 12b, and a driver or the like formed on the knockout piece 12c is provided. As shown in FIG. 8, the jig 30 is inserted into the insertion hole 12d of the jig 30, and the jig 30 is rotated in the horizontal direction so as to be tilted about the insertion hole 12d to break the breaking connection portion 12b. Can be removed. A round knockout hole 13 is also formed in the side plate 5a.

The mounting plate 2 is attached to the bottom plate 4 in the box 1 and extends in a longitudinal direction substantially parallel to a pair of opposing directions of the side plates 5c and 5d. It has a pair of projections 7 and 8 which are separated from each other and project in a direction perpendicular to the extending direction and parallel to the bottom plate 4. In the embodiment, mounting plate 2 has fixing portion 13 fixed to bottom plate 4 by welding, for example, and projecting portions 7 and 8 are integrally formed on both sides in a direction orthogonal to the longitudinal direction of fixing portion 13. It protrudes outward. A plurality of first screw holes 14 into which the first mounting screws 9 are screwed are formed in the projecting portions 8 corresponding to the branch switches 10 provided on the substrate 3 and arranged in the longitudinal direction of the mounting plate 2. I have. In the embodiment, the mounting plate 2
As shown in FIG. 2, the cross section has an inverted hat shape, the center in the width direction is the fixing portion 13, and both sides are the protruding portions 7 and 8 facing each other. As shown in FIG. 6, a large number of first screw holes 14 are formed in the protruding portion 8 at a constant interval, for example, a width interval or a mounting interval of the branching switch 10 in the longitudinal direction. In this case, another first screw hole 14 'is formed adjacent to the left side of each first screw hole 14, so that it can be used for a different type of switch. Similarly, a hole corresponding to the first screw hole is formed in the protrusion 7. This means that the first screw holes 14 and 14 can also be used when the side plate 5a having the knockout hole 13 of the box 1 needs to be arranged on the lower side at the installation site after the mounting plate 2 is mounted on the box 1. ′.

The substrate 3 is provided with first mounting screws 9 on the mounting plate 2.
(FIG. 5), the electric equipment 11 including the branch switch 10 is attached. Further, a first hooking piece 15 which hooks on one of the protruding portions 7, 8 is provided on the substrate 3. In the embodiment, the board 3 has the board body 1 to which the electric device 11 is attached.
6 and a hook member 17 provided on the opposite side of the board main body 16 to the electric device mounting surface 16a and provided with the first hook pieces 15.
And In a state where the first hooking piece 15 is hooked on the protruding portion 7, a mounting piece 36 is provided on a portion of the hooking member 17 facing the first screw hole 14, and an insertion hole 37 aligned with the first screw hole 14 is provided. (FIG. 3) is formed on the mounting piece 36, the first mounting screw 9 is screwed into the first screw hole 14 through the through hole 37, and the hooking member 17 is fixed to the mounting plate 2. Things. A second hooking piece 18 for hooking one end of the substrate body 16 is provided on the hooking member 17, and a second screw hole 21 for attaching the substrate body 16 to the other end of the substrate body 16 with the second mounting screw 20. Is formed on the hooking member 17. In this case, the second hooking piece 18 is provided below the hooking member 17 in the box 1, and the second screw hole 21 is provided on the upper end side. Further, a notch 22 is formed in a portion of the hooking member 17 facing the back side of the second hooking piece 18, and for example, a barrel-shaped screw insertion hole 39 matching the second screw hole 21 is formed in the substrate body 16. I have. In addition, a protrusion 23 is provided near the second hooking piece 18 of the hooking member 17, and a recess 24 is provided in the substrate body 16 so as to fit into the protrusion 23. The projection 23 is, for example, a round projection, and the recess 24 is, for example, a bar-shaped hole.

The electric equipment 11 has a large number of branch switches 10 arranged in two rows in the longitudinal direction of the mounting plate 2 of the substrate body 16 and a main switch 31 at a position adjacent to the end of the branch switches 10 in the arrangement direction. Is arranged. Each of the hook members 17 has an inner lid attachment member 32 erected, and an inner lid 33 is attached to the inner lid attachment member 32 by a fixture 34 as shown in FIG. An opening frame 35 is screwed to the opening edge of the box 1, and a door 40 is hinged to the opening frame 35.

The assembly of the distribution board will be described. Mounting plate 2
The hook member 17 is attached to the protrusion 7 of the mounting plate 2 of the box 1 on which
The first hooking piece 15 is hooked, the first mounting screw 9 is screwed into the first screw hole 14 through the insertion hole 37 of the mounting piece 36, and the hooking member 17 is fixed to the mounting body 2. Electrical equipment 11
The lower end of the board body 16 to which the main switch 31 and the branch switch 10 are attached is hooked on the second hooking piece 18, and the second screw 20 is screwed into the second screw hole 21 through the screw insertion hole 39. Tighten and fix. At this time, the concave portion 2 is
4 is fitted. Attach the inner lid 33 to the inner lid mounting member 32
4, and an opening frame 35 with a door 40 is attached to the opening edge of the box 1.

According to the first embodiment, a pair of side plates 5
Since the substrate 3 is attached to the mounting plate 2 extending in the directions of c and 5d and having the projections 7 and 8 in the direction perpendicular to the extending direction, the shape of the box 1 can be simplified, and The substrate 3 having an appropriate size can be attached, and the box 1 can be shared. Another pair of side plates 5a, 5b orthogonal to the pair of side plates 5c, 5d of the box body 1 facing the extending direction of the mounting plate 2.
Since the knockout hole 12 for inserting an electric wire is formed in the bottom plate 4 between the projecting portions 7 and 8, the operation of inserting the electric wire becomes easy.

Since the projecting portions 7 and 8 on both sides are formed integrally with the fixing portion 13, the fixing operation to the bottom plate 4 becomes easy. Even if the size of the board 16 varies according to the number of the branch switches 10, the first mounting screw 9 can be screwed into the first screw hole 14 and the board 3 can be attached. 3 is easy to install.

First hook piece 1 hooked on one projection 7
Since the substrate 5 is provided on the substrate 3, the work of attaching the substrate 3 becomes easy. The number of the first screw holes 14 can be reduced as compared with the case where the first hook piece 15 is not provided. Branch switch 1 only for substrate body 16
The hook members 17 can be shared by forming the hook members 17 in a size corresponding to the number of zeros.

In a state where one end of the substrate body 16 is hooked on the second hooking piece 18, the substrate body 16 is
Can be attached to the hook member 17, and the work of mounting the substrate body 16 is facilitated. When attaching the substrate main body 16 to the hook member 17, the substrate main body 16 can be prevented from dropping, and the attaching work of the substrate main body 16 is further facilitated.

The board main body 16 can be easily inserted into the position of the second hooking piece 18 in the hooking member 17, and the work of mounting the board main body 16 becomes smooth. When the second mounting screw 20 is attached, the end face of the substrate body 16 on the side of the second hooking piece 18 can also be positioned by the fitting of the concave portion 24 and the convex portion 23, and the lateral displacement between the hooking member 17 and the substrate body 16. Can be prevented.

A second embodiment of the present invention will be described with reference to FIGS. That is, the second embodiment is different from the first embodiment in that the height of the hook member 17 is low, and the second embodiment is applied to the branch switch 10 having a large height without changing the box body 1. Is what you do. The hooking member 17 has a U-shaped cross section including an intermediate piece 46 and both side pieces 47. The intermediate piece 46 is formed on a side of the bottom plate 4 by a pair of parallel cutting bars 48 extending in the longitudinal direction at the center of the intermediate piece 46. Cut to
The intermediate piece 46 has a screw insertion hole 37 formed therein. Others are the same as in the first embodiment.

Although the projection 23 is provided in the vicinity of the second hook piece 18 of the hook member 17, the projection 23 may be provided on the substrate body 16 and the recess 24 may be provided on the hook member 17 side. In addition, although the protruding portions 7 and 8 protrude outward from each other, they may protrude in opposite directions, or the directions may be the same. Further, although the projections 7 and 8 are formed as a pair on the mounting plate 2, a pair of the mounting plates 2 may be provided and the projections may be separately provided on each of the mounting plates.

[0027]

According to the power distribution board of the first aspect, the board is attached to the mounting plate extending in the direction of the pair of side plates and having the projecting portion in the direction perpendicular to the extending direction. The shape of the body can be simplified, substrates of various sizes can be attached, and the box can be shared.

According to the distribution board of the second aspect, the first aspect is provided.
In addition to the same effects as described above, the insertion work of the electric wire is facilitated. According to the distribution board described in claim 3, claim 1 or claim 2 is provided.
In addition to the same effect as described above, since the projecting portions on both sides are integrally formed with the fixing portion, the fixing operation to the bottom plate becomes easy.

According to the distribution board of the fourth aspect, the third aspect is provided.
In addition to the same effects as described above, even if the size of the board varies according to the number of branch switches, the board can be attached by screwing the first mounting screw into the first screw hole as it is. In addition, the work of mounting the substrate becomes easy. According to the distribution board according to claim 5,
In addition to the same effects as those of the fourth aspect, the work of attaching the substrate is facilitated.

According to the distribution board described in claim 6, according to claim 5,
In addition to the same effect as described above, by forming only the substrate body in a size corresponding to the number of branch switches, a common hooking member can be achieved. According to the power distribution board described in claim 7, in addition to the same effect as in claim 6, the substrate body is attached to the hook member by the second mounting screw in a state in which one end of the substrate body is hooked on the second hook piece. It can be attached, and the mounting work of the substrate body becomes easy.

According to the distribution board described in claim 8, according to claim 7,
In addition to the same effects as above, when the substrate main body is attached to the hook member, the substrate main body can be prevented from dropping, and the work of attaching the substrate main body can be further facilitated. According to the ninth aspect of the invention, in addition to the same effects as those of the seventh and eighth aspects, the board main body can be easily inserted into the position of the second hooking piece in the hooking member, and the mounting operation of the board main body can be performed. Becomes smooth.

According to the distribution board of the tenth aspect, in addition to the same effects as the ninth aspect, when the second mounting screw is attached,
By fitting the concave portion and the convex portion, the end surface of the substrate main body on the second hooking one side can also be positioned, and lateral displacement between the hooking member and the substrate main body can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a first embodiment of the present invention with a substrate removed.

FIG. 2 is a cross-sectional view of the electric device mounted state.

FIG. 3 is a partially exploded perspective view of a substrate main body and a hook member.

FIG. 4 is a partial perspective view of the connection state.

FIG. 5 is an exploded perspective view of the distribution board.

FIG. 6 is a front view showing a state where a mounting plate is mounted on the box.

FIG. 7 is a partial front view showing a knockout hole.

FIG. 8 is an explanatory diagram illustrating removal of a knockout piece from a knockout hole.

FIG. 9 is an exploded perspective view of the second embodiment with a substrate removed.

FIG. 10 is a partially exploded perspective view of a substrate body and a hook member.

FIG. 11 is a partial perspective view of the connection state.

FIG. 12 is an exploded perspective view of a distribution board.

FIG. 13 is a perspective view of the distribution board in an open state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Mounting plate 3 Substrate 4 Bottom plate 5a-5d Side plate 6 Opening 7, 8 Projection part 9 First mounting screw 10 Branch switch 11 Electric equipment 12 Knockout hole 13 Fixing part 14 First screw hole 15 First Hook piece 16 Substrate body 16a Electrical equipment mounting surface 17 Hook member 18 Second hook piece 20 Second mounting screw 21 Second screw hole 22 Notch 23 Convex part 24 Concave part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Wataru Nagano 1048 Odaka, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (10)

[Claims] 1. A box body comprising a bottom plate and four peripheral side plates and having an opening on one surface, and a longitudinal direction extending substantially parallel to a pair of opposing directions of the side plates attached to the bottom plate in the box body. A mounting plate having a pair of protrusions, which are separated from the bottom plate by a predetermined distance and are orthogonal to an extending direction and protrude in a direction parallel to the bottom plate, and are attached to the mounting plate by first mounting screws. And a board on which the electric device including the branch switch is mounted. 2. The distribution board according to claim 1, wherein a knockout hole for inserting an electric wire is formed in the bottom plate between a pair of the side plates and the protruding portion which are substantially parallel to the extending direction of the mounting plate. 3. The mounting plate according to claim 1, wherein the mounting plate has a fixing portion fixed to the bottom plate, and the projecting portions are integrally formed on both sides in a direction perpendicular to a longitudinal direction of the fixing portion. Distribution board described. 4. A plurality of first screw holes into which the first mounting screws are screwed are formed in the projecting portions corresponding to the branch switches provided on the substrate and arranged in the longitudinal direction of the mounting plate. The distribution board according to claim 3. 5. The distribution board according to claim 4, wherein a first hooking piece hooked on one of the projecting portions is provided on the substrate. 6. The board according to claim 1, wherein the board includes a board body on which the electric device is mounted, and a hooking member mounted on a side of the board body opposite to the electric device mounting surface and provided with a first hooking piece. Item 5. The distribution board according to item 5. 7. A second screw for providing a second hooking piece for hooking one end of the substrate main body to the hooking member, and attaching the substrate main body at the other end side of the substrate main body with the second mounting screw. The distribution board according to claim 6, wherein a hole is formed in the hook member. 8. The distribution board according to claim 7, wherein the second hooking piece is provided below the hooking member in the box. 9. The distribution board according to claim 7, wherein a portion of the hook member facing the back surface of the second hook piece is cut off. 10. A protruding portion is provided in the vicinity of a second hooking piece of the hooking member and in one of the substrate main bodies, and the protruding portion is provided in the vicinity of the second hooking piece of the hooking member and the other of the substrate main body. The distribution board according to claim 9, wherein a concave portion is provided for fitting to the power distribution board.