JP6890078B2 - Frame for high-voltage power receiving equipment - Google Patents

Description

The present invention relates to a frame for high-voltage power receiving equipment for assembling and accommodating equipment when accommodating high-voltage power receiving equipment in a room.

Conventionally, in buildings with high power demand such as apartment houses, high-voltage batch power is received and converted to low-voltage power is supplied to individual dwelling units. In that case, one room of the building is used as an electric room to accommodate high-voltage power receiving equipment, but by assembling the equipment into a box-shaped frame made of rod-shaped angle steel and accommodating it, a narrow space It is possible to accommodate high-voltage power receiving equipment in Japan.
For example, in Patent Document 1, box-shaped frames are stacked and arranged in two stages, and a transformer and a circuit breaker are housed in each of them.

Japanese Unexamined Patent Publication No. 2016-96699 (Fig. 10)

The configuration in which the equipment is housed in the box-shaped frame was effective in accommodating the high-voltage power receiving equipment in a narrow space.
On the other hand, a high-voltage bus is drawn from the outside and arranged in the electric room, and the high-voltage bus arranged in the electric room is drawn into the box-shaped frame. Therefore, the insulator for pulling in the high-voltage bus is attached to the box-shaped frame in advance, but the position of the high-voltage bus pulled into the electric room is different in each electric room. Several different types of box-shaped frames were prepared.

However, in many cases, the specific arrangement situation cannot be determined until the stage of connection, and the mounting position of the insulator of the box-shaped frame carried in is inconvenient in some cases, and the actual position of the high-voltage bus in the electric room. In some cases, it had to be changed accordingly. In such a case, it was not easy to change the position of the insulator, and it was troublesome to make a hole for attaching the insulator in the box-shaped frame.

Therefore, in view of these problems, an object of the present invention is to provide a frame for high-voltage power receiving equipment that facilitates changing the mounting position of the insulator that supports the high-voltage bus.

In order to solve the above problem, the invention of claim 1 is a rod-shaped steel material in which rod-shaped steel materials are connected to form a square bottom frame and a top frame, and the four corners of the bottom frame and the top frame are vertically arranged. A frame for high-voltage power receiving equipment that is connected to form a box-shaped frame and enables the assembly of high-voltage power receiving equipment in the box-shaped frame. It is formed by being attached to a bar-shaped steel material via a member, and the mounting position of the insulator support member can be changed between the vertically arranged bar-shaped steel material and the bar-shaped steel material constituting the top frame.
According to this configuration, the mounting position of the insulator support member can be changed between the steel material constituting the top frame and the vertically arranged steel material, so the insulator placement position can be selected according to the installation environment of the box-shaped frame. it can. Since the position of the insulator support member to be changed is smaller than the number of insulators, it can be easily changed, and it is not necessary to prepare a plurality of types of box-shaped frames in which the arrangement position of the high-voltage bus is changed. ..

According to the invention of claim 2, in the configuration according to claim 1, the insulator support member is a pair of plates attached to each of two rod-shaped steel materials arranged in parallel, and the pair of plates face each other. While a plurality of insulators are attached to both plates so as to face each other, a connecting side for connecting to a bar-shaped steel material is provided at the end of the plate, and the rod-shaped body is connected by using a connecting means. It is characterized in that a high-pressure bus is hung between insulators that are connected to a steel material and attached so as to face a pair of plates.
According to this configuration, since the insulator support member is composed of two plates attached to two parallel steel materials, the distance between the attached steel materials is not limited. Therefore, one type of insulator support member can be used for a plurality of types of box-shaped frames having different sizes, and it is not necessary to prepare a plurality of types of insulator support members.

According to the present invention, the mounting position of the insulator support member can be changed between the steel material constituting the top frame and the vertically arranged steel material, so that the insulator placement position can be selected according to the installation environment of the box-shaped frame. it can. Then, since it is sufficient to change the position of the insulator support member, which is smaller than the number of insulators, the member to be changed can be easily changed. Therefore, it is not necessary to prepare a plurality of types of box-shaped frames in which the arrangement positions of the high-voltage buses are changed.

It is a perspective view which shows an example of the frame for high-voltage power receiving equipment which concerns on this invention, and shows the state which the box-shaped frame is arranged in two stages. It is a right side view of FIG. It is a perspective view of the insulator support member. It is a perspective view of the frame for high-voltage power receiving equipment which changed the mounting part of the insulator support member. It is a right side view of FIG. It is a perspective view which looked at the main part of FIG. 4 from diagonally below. In the perspective view of the frame for high-voltage power receiving equipment in which the mounting position of the insulator support member is changed, only the upper box-shaped frame is shown.

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. 1 and 2 show an example of a frame for high-voltage power receiving equipment according to the present invention, FIG. 1 is a perspective view, and FIG. 2 is a right side view. The high-voltage power receiving equipment is usually accommodated by stacking two box-shaped frames 1 (1a, 1b) as shown in FIGS. 1 and 2.
The upper box-shaped frame 1a and the lower box-shaped frame 1b have the same shape of the bottom frame 2 and the top frame 3, but the height is changed according to the size of the equipment to be accommodated and stacked in two stages. It is manufactured so that it fits in the electric room in the state.

Further, using the box-shaped frame 1 as a basic structure, members for assembling equipment are attached, and necessary members such as attachment of reinforcing members and addition of panels are attached and used. Specifically, the bottom frame 2 of the lower box-shaped frame 1b is reinforced by the reinforcing frame 7 to accommodate the transformer 10, and the instrument plate 11 to which the instrument is attached is attached to the front surface.
On the other hand, the high-voltage AC load switch 12 is attached to the upper box-shaped frame 1a, and the insulator 13 for arranging the high-voltage bus is attached. A protective plate 17 is attached to the front surface. An insulator 13 for drawing in and arranging the high-voltage bus K is attached to the rear portion of the box-shaped frame 1a.
The lower box-shaped frame 1b is formed to be higher in height than the upper box-shaped frame 1a in order to accommodate the transformer 10.

Hereinafter, the upper box-shaped frame 1 (1a) to which the insulator 13 is attached will be described.
The box-shaped frame 1 is formed by connecting an angle member 5 having an L-shaped cross section, which is a bar-shaped steel material. Specifically, the angle members 5 are connected in a quadrangle to form the bottom frame 2 and the top frame 3, and the corners of the bottom frame 2 and the top frame 3 are connected by four vertically arranged angle members 5. It is formed. Each corner is bolted and connected using a corner fitting 6.

The insulator 13 is attached to the insulator support member 14 formed of a steel plate in a set of three, and the insulator support member 14 is attached to the box-shaped frame 1. The bottom of the insulator 13 is fixed to the insulator support member 14 with screws or bolts.
Since the high-voltage bus K is arranged in three phases and three wires, three insulators 13 are attached to the insulator support member 14 as a set.

FIG. 3 shows a perspective view of the insulator support member 14. As shown in FIG. 3, the insulator support member 14 is a quadrangular plate body, and one side attached to the box-shaped frame 1 is bent at a right angle to form a band-shaped connecting side 15, and the connecting side 15 is used as an angle member. It is arranged inside No. 5 and is configured to stabilize the connected state by aligning the L-shaped portions with each other. 14a and 14b are insulator mounting holes, and 14c is a frame mounting hole for mounting on the box-shaped frame 1.
The three insulators 13 are screwed to one of the two sets of insulator mounting holes 14a and 14b and arranged parallel to the connecting side 15, that is, parallel to the angle member 5 to be attached.

FIG. 1 shows a configuration in which the insulator 13 is attached to the insulator support member 14 and is attached to the angle member 5 vertically arranged at the rear portion, and as shown in FIG. 1, the pair of insulator support members 14 are arranged so as to face each other. By doing so, the three insulators 13 are attached so as to face each other. Further, the connecting side 15 of the insulator support member 14 is closely arranged on the angle member 5, and is fixed between the frame mounting hole 14c and the connecting hole 5a previously bored in the angle member 5 by a screw as a connecting means. To. However, the connecting hole 5a is shown on the drawing, and the screw is omitted.
The angle member 5 to be mounted is provided with a connecting hole 5a in advance so as to match the position of the frame mounting hole 14c of the insulator support member 14.

The connecting holes 5a that match the frame mounting holes 14c are also provided in the angle members 5 that form the left and right sides of the top frame 3, and FIGS. 4 to 6 show that the insulator support member 14 is mounted on the top frame 3. Indicates the state. FIG. 4 is a perspective view corresponding to FIG. 1 in which the box-shaped frame 1 is arranged in two stages, FIG. 5 is a right side view corresponding to FIG. 2 in the same manner, and FIG. It is a perspective view of.
In this way, simply move the mounting positions of the two insulator support members 14. The six insulators 13 can be moved, and the vertically arranged angle member 5 can be easily changed to the angle member 5 of the top frame 3.

FIG. 7 shows a configuration in which the mounting position of the insulator support member 14 is not changed as in the state of FIG. 4, but only the arrangement of the insulator 13 is changed. The insulator support member 14 is provided only with insulator mounting holes 14a and 14b for screwing on the steel plate, and the mounting surface of the insulator 13 is viewed from the lower side of the top frame 3 of the box-shaped frame 1 shown in FIG. It can be easily changed to the upper side of the frame 3. Therefore, when the insulator is attached to the top frame 3, it is possible to easily change the attachment of the insulator 13 so as to project onto the top frame 3, and in this case, the inside of the box-shaped frame 1 can be widely used.

In this way, the mounting position of the insulator support member 14 can be changed between the angle members 5 constituting the top frame 3 and the vertically arranged angle members 5, so that the insulator 13 can be changed according to the installation environment of the box-shaped frame 1. You can select the placement position of. Since the position of the insulator support member 14 which is smaller than the number of insulators 13 may be changed, the member can be easily changed, and a plurality of types of box-shaped frames 1 having different arrangement positions of the high-voltage bus K are prepared. You don't have to.
Further, since the insulator support member 14 is composed of two plates to which the insulator 13 is attached and is attached to each of the two parallel angle members 5, the distance between the attached angle members 5 is not limited and the size is large. One type of insulator support member 14 can be applied to a plurality of different types of box-shaped frames 1, and it is not necessary to prepare a plurality of types of insulator support members 14.

In the above embodiment, two insulator support members 14 are used and the insulator 13 is attached to each of the two insulator support members 14, but six high-voltage buses composed of three are arranged in parallel as only one plate. Insulator 13 may be attached.
Further, although the upper box-shaped frame 1 (1a) of the two-tiered box-shaped frames 1 has been described, the angle members 5 vertically arranged at the four corners of the box-shaped frame 1a are extended and not overlapped. It may be used in stages.

1 ... Box-shaped frame, 2 ... Bottom frame, 3 ... Top frame, 5 ... Angle material (bar-shaped steel material), 13 ... Insulator, 14 ... Insulator support member, 15 ... Connecting side, K ... High voltage bus.

Claims (2)

The rod-shaped steel materials are connected to form a quadrangular bottom frame and a top frame, and the four corners of the bottom frame and the top frame are connected to each other by vertically arranged rod-shaped steel materials to form a box-shaped frame, and the inside of the box-shaped frame is formed. It is a frame for high-voltage power receiving equipment that enables the assembly of high-voltage power receiving equipment.
A plurality of insulators for supporting the high-voltage bus are attached to the rod-shaped steel material via a common insulator support member.
A frame for high-voltage power receiving equipment, wherein the mounting position of the insulator support member can be changed between the vertically arranged rod-shaped steel material and the rod-shaped steel material constituting the top frame. The insulator support member is a pair of plates attached to each of the two rod-shaped steel materials arranged in parallel, and the pair of plates are arranged so as to face each other, and a plurality of the pair of plates are attached to both plates. While the insulators of the above are installed to face each other,
A connecting side for connecting to the rod-shaped steel material is provided at the end of the plate body, and the plate body is connected to the rod-shaped steel material by using a connecting means.
The frame for high-voltage power receiving equipment according to claim 1, wherein a high-voltage bus is hung between the insulators attached so as to face the pair of plates.

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