JP2006020422A - Distribution board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution board which reduces the number of parts, reduces a weight and increases an internal space; and which is easy in inspecting, wiring, opening and closing of an inner lid. <P>SOLUTION: In the distribution board B, a substrate 3 to which an electrical device, such as a branched switch, etc., is fitted in a box 1 by fixtures 13. An inner door 5 for exposing the operation section of the electrical device, such as the branch switch to the box 1 separately from the substrate 3 is attached without standing a strut for attaching the inner door to the substrate 3. A frame for cutting a contact with a distribution board exterior in the inner door 5 and a frame for attaching the inner door are not provided. Since the strut for attaching the inner door, a decorative frame, and an inner pan attaching frame of conventional examples are made unnecessary, the number of the parts is alleviated, and the distribution board can be simply assembled. The transportation of the distribution board by the weight reduction of the distribution board becomes easy. The inner space can be expanded. The inspection, connection or disconnection of a breaker, etc. becomes easy. Moreover, Electric wire in wiring becomes easy to be bound. Further, the opening and closing of the inner cover becomes easy by using a special hinge. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a distribution board.

As shown in FIG. 11A, for example, the conventional distribution board B includes a box 1, a fixture 2, a substrate (inner plate) 3, a support column 4, an inner door (inner plate) 5, and a decorative frame 6. An inner tray mounting frame 7 and an outer door 8 are provided.
The said board | substrate 3 fixes several electric equipments, such as a branch switch, and is attached to the box 1 with the fixture 2 called an attachment horse like illustration.
On the substrate 3, a middle door mounting column 4 is erected to mount the middle door 5. The middle door 5 exposes the operation parts of a plurality of electrical devices such as branch switches. In the conventional example, the middle door 5 is attached to the substrate 3 to attach the middle door 5 to the substrate 3 as described above. The support column 4 is erected.
For example, a main breaker (switch) 9 and a branch breaker (switch) 10 are attached to the board 3, and the operation portions (handles) of the main breaker 9 and the branch breaker 10 are attached to the middle door 5. A plurality of window holes for projecting 11 are opened.
FIG. 11B illustrates a state in which the handles 11 of the main breaker 9 and the branch breaker 10 project from the window hole in the inner door 5.
As described above, the middle door 5 projects the handles 11 of the main breaker 9 and the branch breaker 10 so that the conductive portions of the main breaker 9 and the branch breaker 10 inside the box and the connecting conductive portion 12 therebetween. In order to avoid contact (electrical shock), the box 1 is attached to the box 1 so as to close the opening of the box.
Each handle 11 of the main breaker 9 and the branch breaker 10 can be operated by opening the outer door 8. When the outer door 8 is opened, the distribution board B is opened on one side of the box 1. The
As described above, the inner door 5 is provided in order to avoid contact (electric shock) with the conductive portions of the main breaker 9 and the branch breaker 10 and the connecting conductive portion 12 between them. Refusing contact.
Further, a middle tray mounting frame 7 is also provided for mounting the middle door (middle pan) 5.
Therefore, in the distribution board of the conventional example, the support door 4 for attaching the inner door 5 to the substrate 3 is required, and the decorative frame 6 for cutting off the contact between the inner door 5 and the outside is required. Further, the middle tray mounting frame 7 is required as a frame (frame body) for mounting the middle door (middle tray) 5.
The above will be further described in common with FIG. 12 and FIG. 5 of the distribution board described in Japanese Patent Laid-Open No. 2000-152433. The fixture 2 of the box 1 of the distribution board (both sides in FIG. The substrate 3 (the substrate 14 in FIG. 5 of the publication) is attached to the piece 8), and the middle door attachment column 4 (the inner lid attachment column 17 in FIG. 5 of the publication) is provided on the substrate 3 (substrate 14). A door 5 (inner lid 18 in FIG. 5 of the publication) is attached, and branch switches 9 and 10 (branch switches 16 and 16 in FIG. 5 of the publication, the publication) between the middle door 5 and the substrate 3. Then, the switch is located above and below.) The handle 11 (handle 16a in FIG. 5 of the publication) protrudes from the window of the middle door 5 and passes through the middle door mounting column 4 An inner door 5 is attached.
Therefore, the space between the substrate 3 and the inner door 5 (garter space) is restricted (fixed) by the presence of the support door 4 for attaching the inner door, thereby narrowing, and the installation space for the electrical equipment such as the switch 9 is narrowed. Thus, a problem occurs in the manufacturing process, inspection, etc., and the support 4 cannot be used effectively because it interferes, and for example, fixing the electric wire is difficult.
In addition, the presence of the decorative frame 6 and the middle tray mounting frame 7 causes problems such as complicated manufacturing processes, troublesome removal of the middle door 5 and too much time, and further, middle column mounting posts. 4, the decorative frame 6, and the inner tray mounting frame 7 make the distribution board heavier and increase the cost.
JP 2000-152433 A, JP 2003-244806 A, JP 2001-186610 A

An object of the present invention is to provide a novel technique capable of solving the above-described problems.
Other objects and novel features of the present invention will become apparent from the description of the present specification and the drawings.

The claims of the present invention are as follows.
(Claim 1) In a distribution board, a board for fixing an electric device such as a branch switch is attached to the box with a fixture, and the inner door mounting column is not erected on the board and is separate from the board. A box for attaching an operation door of the electrical device such as the branch switch to the box, and a frame for cutting off contact with the outside of the distribution board at the middle door and a frame for mounting the middle door A distribution board characterized by not providing a body.
(Claim 2) In the distribution board, there are three blade parts including the first blade part, the second blade part, and the third blade part, and the first blade part and the second blade part. A first shaft portion interposed between the second shaft portion and a second shaft portion interposed between the second blade portion and the third blade portion; The blade portion has a fixing hole between the first blade portion and the hole provided in the first blade portion, and the first blade portion fixes the first blade portion to the box body of the distribution board. A support fixing hole which can be formed, and a fixing hole between the fixing blade provided in the second blade portion, and the third blade portion is provided with a middle door of a distribution board. And the second shaft portion interposed between the second blade portion and the third blade portion is configured to be detachable, and the third blade portion And second feather Distribution board desorption can be characterized by Configured comprising hinges to become attached to Chutobira exposing the operation part of the electric equipment, such as branch switches between parts.

According to the present invention, the distribution board eliminates the need for a conventional middle door mounting column, decorative frame, and middle tray mounting frame, so the number of parts is reduced and distribution can be performed in a short time with simple assembly. The panel can be assembled, and the heavy middle door mounting column is eliminated, so the distribution board is lightened and the distribution board can be transported easily. Since there is no middle door mounting support as in the conventional example, the space between the board and the inner door can be expanded, inspection becomes easier, and internal units such as breakers can be easily attached and detached. The wires in the wiring are now easier to bind.
In addition, the use of the special hinge according to the present invention makes it easy to open and close the inner lid, so it is easy to check the distribution board, etc., and it is easy to attach and detach internal units such as breakers. Even if it is drawn relatively deeply into the inside of the distribution board box such as the inner lid in the distribution board, and the inner lid is in contact with the ceiling wall of the box and is difficult to open and close, By using the hinge according to the present invention, the inner lid can be easily opened and closed.

As shown in FIGS. 1 and 2A, the distribution board B includes a box 1, a substrate 3, an inner door 5, and an outer door 8.
As shown in FIG. 1 and FIG. 2A, the distribution board B has the substrate 3 attached to the box 1 with a fixture 13.
As shown in FIG. 4A, the fixture 13 includes a support metal 130, a bolt 131, a washer 132, and a nut 133. In the illustrated example, the combination of the bolt 131, the washer 132, and the nut 133 is illustrated, but other fasteners may be used.
As shown in FIGS. 4C and 4D, the support metal 130 in the fixture 13 has a cross-sectional shape, and a slide hole 1300 such as the bolt 131 is provided in the center.
As shown in FIG. 4E, the bolt 131 and the like are slid and mounted in the slide hole 1300 of the support metal 130.
As shown in FIGS. 4A and 4B, a washer 132 is interposed on both sides of the substrate 3, and the substrate 3 is fastened and fixed to the support metal 130 with bolts 131 and nuts 133. Although not shown in the figure, the support hardware 130 is attached to the box 1.
As shown in FIG. 3, the substrate 3 is configured such that its cross section is in a letter shape, and both side end portions 300 of the substrate 3 are attached to the box 1 with the fixture 13 as described above.
In the conventional example, as described in Japanese Patent Application Laid-Open No. 2000-152433, the substrate is attached by the both side pieces 8 referred to as the mounting horses over many stages, but in the present invention, the form of the substrate 3 is described above. In addition, if the attachment 13 is also devised as described above, and the substrate 3 is attached by the attachment 13, for example, four places of the bent side end portions 300 of the substrate 3 are attached. It was simplified so that it could be lighter than the conventional mounting horse.

  As shown in FIG. 1, in the distribution board B, the middle door 5 is attached to the box 1. As shown in FIG. 1, one end of the middle door 5 is attached at the knurled portion 14, and the other These ends are attached using a novel hinge 15 devised by the present inventors.

As shown in FIGS. 6A and 6B, the hinge 15 includes three blade portions including a first blade portion 151, a second blade portion 152, and a third blade portion 153, and the first blade portion. The first shaft portion 154 interposed between the first blade portion 151 and the second blade portion 152 and the second shaft portion 155 interposed between the second blade portion 152 and the third blade portion 153. And two shaft portions made up of
The second shaft portion 155 is configured to be removable, so that the third blade portion 153 can be detached upward from the second blade portion 152 as shown in FIG. 6C. It has become.
As shown in FIGS. 6D and 6E, the hinge 15 is a hinge of the first blade 151, the second blade 152, the first shaft 154, and the second shaft 155 on the right side of the figure. The lower half of 1550 and the hinge pin (hinge shaft) 1551 are separated from each other, and the third blade 153 on the left side of the drawing and the upper half of the hinge 1550 of the second shaft 155 are separated.
The first shaft portion 154 includes a hinge 1540 and a hinge pin (hinge shaft) 1541 as shown in the figure.

As shown in FIGS. 6A and 6B, the first blade portion 151 of the hinge 15 has three holes 157, 156, and 157 in the vertical direction. The first blade portion 151
The central hole 156 in FIG. 6 is a fixing hole between the fixing hole 158 provided in the center of the second blade portion 152. Two holes 157 and 157 that are provided above and below the central fixing hole 156 in the first blade portion 151 can fix the first blade portion 151 of the hinge 15 to the box body 1. This is a support fixing hole that can be formed.
As described above, the second blade portion 152 is provided with the fixing hole 158 between the second blade portion 152 and the fixing hole 156 provided in the first blade portion 151.
As will be described later, when the inner door 5 is normally closed, the second blade portion 152 is normally bent toward the first blade portion 151 and brought into contact with the first blade portion 151. Between the fixing hole 156 of the first blade part 151 and the fixing hole 158 of the second blade part 152, for example, a countersunk screw and bolt of a fastener made of a combination of a countersunk screw and a screw or a bolt and a nut are inserted. Then, screws and nuts are fixed to the box body of the distribution board, for example, and the middle door 5 is fixed to the box body 1 of the distribution board B via the hinge 15 having the first blade portion 151. Can do.
As shown in the drawing, the third blade portion 153 is provided with mounting holes 159 and 159 for attaching two lids or doors in the vertical direction. 5 is attached by using the mounting holes 159 and 159, for example, with countersunk screws.

As shown in FIG. 7 (A), the first blade 151, the second blade 152, and the first shaft on the right side of the separated hinge 15 shown in FIGS. 6 (D) and 6 (E). The portion formed by the lower half of the hinge 1550 and the hinge pin (hinge shaft) 1551 of the part 154 and the second shaft part 155 is not shown in the figure, but two supports in the first blade part 151 of the separation hinge 15 For example, a countersunk screw E is inserted into the body fixing hole 157 to fix the first blade portion 151 of the separation hinge to the box 1 of the distribution board.
On the other hand, as shown in FIG. 7A, the left side portion of the hinge 15 including the third blade portion 153 and the upper half of the hinge 1550 of the second shaft portion 155 is illustrated on the inner lid 5. However, it is attached to the attachment hole 159 of the third blade portion 153 using, for example, a countersunk screw G.
As described above, since the second shaft portion 155 can be inserted and removed, the second shaft portion 155 is adjacent to the third blade portion 153 to which the inner lid 5 is attached as shown by the arrow in FIG. The hinge 1550 is attached to the hinge 1550 adjacent to the second blade portion 152 with the exposed hinge pin (hinge shaft) 1551 of the second shaft portion 155 as a positioning.
FIG. 7B illustrates an example in which the third blade portion 153 is attached to the second blade portion 152.
As shown in FIG. 7C, the second blade portion 152 is bent toward the first blade portion 151, and as shown in FIG. 7D, the second blade portion 151 abuts on the first blade portion 151. In addition to the countersunk screw E, for example, a screw F is fixed between the fixing hole 156 of the first blade portion 151 and the fixing hole 158 of the second blade portion 152, and an arrow in FIG. The third blade portion 153 is rotated as shown by the mark, and the third blade portion 153 is deployed on top of the first blade portion 151 and the second blade portion 152 as shown in FIG. Then, the opening surface of the box 1 of the distribution board is closed with the inner lid 5 through the hinge 15.
In the box 1 of the distribution board closed by the inner lid 5, when opening the inner lid 5 inside the box 1 from the state shown in FIG. The fastener F inserted through the fixing hole 156 provided in the blade portion 151 and the fixing hole 158 provided in the second blade portion 152 is removed.
When the fastener F is removed, the first blade 151 and the second blade 152 are not fixed, the second blade 152 falls from the first blade 151, and the third blade The blade portion 153 also falls and returns to the original state shown in FIG.
In the line indicated by X in FIG. 7E, the third blade portion 153 cannot be detached from the second blade portion 152 even if the second shaft portion 155 is configured to be removable. 7E, the second shaft portion 155 can be inserted and removed, and the third blade portion is formed on the Y line outside the box body 1 by expanding it to the line indicated by Y in FIG. 153 can be removed from the second blade portion 152, whereby the inner lid 5 attached to the third blade portion 153 can be removed and opened.

  In FIG. 8, the figure of the state which removed and opened the said inner lid 5 is shown. As shown in FIG. 8, when the outer door 8 of the box 1 is removed, the knurled portion 14 is removed, and the third blade portion 153 in the hinge 15 is removed from the second blade portion 12, the inner lid 5 is removed. Can be opened easily for removal.

As shown in FIG. 5, the knurled portion 14 includes a knurled 140 and a floating nut 141.
By using the floating nut 141, there is an advantage that the knurled 140 can be smoothly inserted even with a slight shift of the inner lid 5.

In the conventional example, in order to attach the inner lid 5 to the substrate 3 as described above, the middle door mounting column 4 is installed upright and the middle door 5 is attached. However, in the present invention, as described above, The lid 5 is devised so that the middle lid 5 is attached by the hinge 15 and the knurled portion 14, and the middle door 5 is attached without the middle door attaching column 4 being erected, and the substrate 3 and the middle door 5 is separately attached to the box 1, the conventional middle door mounting column 4 is not required, and the knurled portion 14 and the present inventors have devised the mounting of the inner door 5. By using the new hinge 15, the conventional decorative frame 6 for cutting off the contact with the outside of the distribution board is not necessary, and furthermore, the mounting of the inner tray required for the attachment of the conventional inner door 5 is eliminated. The frame 7 can also be made unnecessary.
Accordingly, since the middle door (middle tray) mounting column, the decorative frame, and the middle tray mounting frame 7 in the conventional distribution board are not required, the number of components is reduced, and the distribution board can be quickly assembled by simple assembly. In addition, since the heavy middle door mounting column 4 and mounting horse 8 are eliminated, the distribution board is reduced in weight and the distribution board can be easily transported.
Since the middle door mounting column 4 as in the conventional example is not provided, the space between the substrate 3 and the middle door 5 can be expanded, and the space can be used effectively. Furthermore, the electric wires in the wiring are easily bundled.
In addition, by using the hinge 15 according to the present invention, the inner lid 5 can be easily opened and closed, so that the distribution board can be easily inspected and the internal unit such as the breaker 9.10 can be easily attached and detached. It was.
By using the special hinge according to the present invention, the inner lid can be easily opened and closed, so that the distribution board can be easily inspected, and the internal units such as the breakers 9 and 10 can be easily attached and detached. In the distribution board, it is drawn relatively deeply into the inside of the distribution board box such as the inner lid 5, and the inner lid 5 is in contact with the ceiling wall of the box and is difficult to open and close. Even in this case, the opening and closing of the inner lid 5 was facilitated by using the hinge according to the present invention.

  As described above, in the present invention, the space between the substrate 3 and the inner door 5 can be enlarged, and the space between them can be used effectively. As shown in FIG. By installing the wire clamp 16 in the space between the substrate 3 and the inner door 5, it becomes easy to bind the wires D in the wiring using the wire clamp 16 as shown in the figure.

  As shown in FIG. 9, in the present invention, the bolt of the fixture 13 fixing the board 3 can be extended, so that the space between the board 3 and the inner door 5 is further expanded. I can do it.

  FIG. 10 shows another embodiment of the present invention, and this embodiment shows an example in which a knurling or a hinge is not used for attaching the inner door 5.

  In this invention, it is not limited to the said Example, A change is possible suitably.

  In the above description, the distribution board of the present invention can be applied to all types of distribution boards equipped with an integrating wattmeter and the like.

It is sectional drawing of the distribution board which shows the Example of this invention. (A) It is a partial cross section block diagram of the distribution board which shows the Example of this invention. (B) It is explanatory drawing of the electric wire terminal used for the distribution board. It is an external view of the board | substrate in the electricity distribution panel which shows the Example of this invention. (A) It is a top view which shows the fastening state of the board | substrate which shows the Example of this invention, and its fixture. (B) It is a side view which shows the fastening state of the board | substrate which shows the Example of this invention, and its fixture. (C) It is the II sectional view taken on the line of FIG. 4 (D), and is sectional drawing of the support metal object in a fixture. (D) It is a top view of the support metal object in the fixture which shows the Example of this invention. (E) It is explanatory drawing of the fixture which shows the Example of this invention. It is an external view of the inner door in the distribution board which shows the Example of this invention. (A) It is an assembly top view of the hinge which shows the Example of this invention. (B) It is an assembly front view of the hinge which shows the Example of this invention. (C) It is a removal front view of the 3rd blade | wing part of the hinge which shows the Example of this invention. (D) It is a separation top view of the hinge which shows the Example of this invention. (E) It is a separation front view of the hinge which shows the Example of this invention. (A) It is explanatory drawing before the assembly of the hinge which shows the Example of this invention. (B) It is explanatory drawing after the assembly of the hinge which shows the Example of this invention. (C) It is explanatory drawing which attaches the 2nd blade | wing part of the hinge which shows the Example of this invention to the 1st blade | wing part. (D) It is a top view of the open state of the hinge which shows the Example of this invention. (E) It is a top view of the attachment state of the hinge which shows the Example of this invention. It is a block diagram which shows the Example of the open state of the outer door and inner cover of a distribution board which shows the Example of this invention. It is sectional drawing which shows the expansion state of the board | substrate which shows the other Example of this invention. It is sectional drawing of the electricity distribution panel which shows the other Example of this invention. It is a block diagram of the distribution board which shows a prior art example. It is explanatory drawing of the electricity distribution panel which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box 3 Board | substrate 5 Middle lid 9 Main breaker 10 Branch breaker 15 Hinge 151 1st blade | wing part 152 2nd blade | wing part 153 3rd blade | wing part 154 1st axial part 155 2nd axial part 156 Fixing hole 157 Support fixing hole 158 Fixing hole 159 Mounting hole B Distribution board

Claims (2)

In the distribution board, a board for fixing an electric device such as a branch switch is attached to the box with a fixture, and the middle door mounting column is not erected on the board and the box is separated from the board. Install a middle door that exposes the operating part of electrical equipment such as a branch switch, and do not provide a frame for disconnecting contact with the outside of the distribution board and a frame for mounting the middle door. A distribution board characterized by In the distribution board, the first blade portion, the second blade portion, and the third blade portion including the third blade portion, and the first blade portion interposed between the first blade portion and the second blade portion. 1 shaft portion and two shaft portions comprising a second shaft portion interposed between the second blade portion and the third blade portion, the second blade portion being A support fixing hole having a fixing hole between the first blade portion and a hole provided in the first blade portion, the first blade portion fixing the first blade portion to the box body of the distribution board. And a fixing hole between the fixing blade provided in the second blade portion, and the third blade portion has an attachment hole for attaching a middle door of the distribution board. The second shaft portion interposed between the second blade portion and the third blade portion is configured to be detachable, and the third blade portion and the second blade are configured to be removable. Between departments Panelboard, characterized by comprising attaching a Chutobira exposing the operation part of the electric equipment, such as branch switches in wearing can be configured by comprising hinge.

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