JP7660978B2 - Structure for installing electrical equipment storage box and electrical device, and method for installing electrical equipment storage box and electrical device on utility pole - Google Patents

Description

The present invention relates to an electrical equipment storage box and an installation structure for electrical equipment, and a method for installing an electrical equipment storage box and an electrical equipment on a utility pole.

When installing vehicle charging equipment and high-voltage power receiving equipment, it was necessary to carry out foundation work for each equipment and then excavate the ground for wiring. However, such work was problematic in that it was time-consuming to carry out on-site work. In contrast, the technology described in Patent Document 1 arranges the vehicle charging equipment and high-voltage power receiving equipment on a base in advance, reducing the various tasks involved in installation.

JP 2015-033251 A

However, even with this method, the base needs to be secured to the ground with anchor bolts to prevent the vehicle charging device or other device from tipping over.

The inventor of this invention has thoroughly investigated this issue and attempted to solve it. The problem that this invention aims to solve is to make it easy to prevent electrical equipment storage boxes and electrical devices from falling over.

To solve the above problem, the electrical equipment storage box and electrical equipment installation structure is characterized in that it includes an electrical equipment storage box that pulls in electric wires from a utility pole, and an electrical device that is electrically connected to the electrical equipment storage box, and the electrical equipment storage box is supported by the utility pole to prevent it from falling over, and the electrical device is supported by the utility pole to prevent it from falling over.

It is also preferable that the electrical equipment storage box and the electrical equipment are installed in a position such that, in a plan view, the angle between a line connecting the center of gravity of the electrical equipment storage box to the center of the utility pole and a line connecting the center of gravity of the electrical equipment to the center of the utility pole is greater than 0 degrees and less than 360 degrees.

It is also preferable that the height of the bottom surface of the electrical equipment storage box is different from the height of the bottom surface of the electrical device.

It is also preferable that the utility pole be located between the electrical equipment storage box and the electrical device.

It is also preferable that the mounting base on which the electrical equipment storage box is placed is fixed to a utility pole.

It is also preferable that the mounting base on which the electrical equipment storage box is placed and the mounting base on which the electrical equipment is placed are fixed so as to sandwich the utility pole.

The method for installing an electrical equipment storage box and an electrical device on a utility pole includes the steps of: fixing a mounting base to the utility pole so as to sandwich the utility pole; placing the electrical equipment storage box, which draws in the electric wires from the utility pole, and the electrical device electrically connected to the electrical equipment storage box on the mounting base; and supporting the electrical equipment storage box and the electrical device on the utility pole to prevent them from falling over.

By using this invention, it is easy to prevent electrical equipment storage boxes and electrical devices from falling over.

FIG. 1 is a diagram showing an example of an electrical equipment storage box and an electrical device installed on a utility pole. 2 is a side view of the electrical equipment storage box of the example shown in FIG. 1 . FIG. 2 is a perspective view of the electrical device storage box and the like of the example shown in FIG. 1, however, electric wires are omitted. 2 is a plan view of the electrical equipment storage box and the like of the example shown in FIG. 1, however, electric wires are omitted. FIG. 2 is an exploded perspective view of the mounting base and the utility pole shown in FIG. 1 . FIG. 2 is an exploded perspective view of a mounting base and a utility pole having a configuration different from that shown in FIG. 1 . FIG. 13 is a diagram showing an example in which the mounting base is arranged so as to be in contact with the ground surface. 11 is a diagram showing an example in which a mounting base for placing an electric equipment storage box and a mounting base for placing an electric device are set at different heights. FIG. FIG. 13 is a diagram showing an example in which the electrical equipment storage box and the electrical equipment are oriented in the same direction. FIG. 13 is a diagram showing an example in which electrical equipment storage boxes and electrical devices are arranged on three different sides of a utility pole. FIG. 11 is a plan view of the example shown in FIG. 10 . FIG. 11 is an exploded view of the mounting base and utility pole used in the example shown in FIG. FIG. 11 is a diagram showing the example shown in FIG. 10 with one mounting base removed. FIG. 14 is a plan view of the example shown in FIG. 13. FIG. 13 is a diagram showing an example in which electrical equipment storage boxes and electrical devices are arranged on four different sides of a utility pole. FIG. 16 is a plan view of the example shown in FIG. 15 . FIG. 16 is an exploded view of the mounting base and utility pole used in the example shown in FIG. FIG. 16 shows the example shown in FIG. 15 with two mounting bases removed. FIG. 19 is a plan view of the example shown in FIG. 18. FIG. 1 is an exploded view of a mounting base and pole with two openings.

The following is an embodiment of the invention. As can be understood from Figs. 1 to 4, in this embodiment, in an installation structure for an electrical equipment storage box 1 that pulls in an electric wire 41 from a utility pole 4 and an electrical device 2 that is electrically connected to the electrical equipment storage box 1, the electrical equipment storage box 1 is supported by the utility pole 4 so as not to tip over, and the electrical device 2 is also supported by the utility pole 4 so as not to tip over. This makes it easy to prevent the electrical equipment storage box 1 and the electrical device 2 from tipping over.

The electrical equipment storage box 1 and the electrical equipment 2 are preferably positioned such that, in a plan view, the angle between the line connecting the center of gravity of the electrical equipment storage box 1 to the center of the utility pole 4 and the line connecting the center of gravity of the electrical equipment 2 to the center of the utility pole 4 is greater than 0 degrees and less than 360 degrees. In this way, the force supporting the electrical equipment storage box 1 and the force supporting the electrical equipment 2 are in different directions, so the magnitude of the force acting to tilt the utility pole 4 can be reduced.

The installation structure on the utility pole 4 in the embodiment is for supporting the electrical equipment storage box 1 and the electrical equipment 2 on the utility pole 4, and includes a mounting base 5 for mounting on the utility pole 4, the electrical equipment storage box 1, and the electrical equipment 2. The mounting base 5 is not essential, but if the mounting base 5 on which the electrical equipment storage box 1 is placed is fixed to the utility pole 4, the electrical equipment storage box 1 can be supported from below regardless of the height at which the electrical equipment storage box 1 is installed. It is preferable that the mounting base 5 on which the electrical equipment storage box 1 is placed and the mounting base 5 on which the electrical equipment 2 is placed are fixed so as to sandwich the utility pole 4.

The electrical equipment storage box 1 is a distribution board, switchboard, high-voltage power receiving equipment, etc. that pulls in electric wires 41 from a utility pole 4 and supplies power to a load. When the electrical equipment storage box 1 is a distribution board, switchboard, etc., the electric wires 41 are pulled from a pole-mounted transformer installed on the utility pole 4 into the electrical equipment storage box 1, and are then taken out from the electrical equipment storage box 1 to supply power to the load.

In addition, if the electrical device 2 is a generator, the electricity generated by the generator can be drawn into the electrical equipment storage box 1, such as a distribution board or switchboard, and can be supplied to a load to which the electric wire 41 extending from the electrical equipment storage box 1 is connected. Note that, if the electrical equipment storage box 1 is a high-voltage power receiving facility, a high-voltage cable can be drawn from the distribution line 41 on the utility pole 4, transformed, and then drawn out from the electrical equipment storage box 1 to supply power to a load.

The electrical equipment storage box 1 is electrically connected to the electrical equipment 2, and the electrical equipment 2 is electrically connected to the electrical equipment storage box 1 by supplying power from the electrical equipment storage box 1 or by supplying power to the electrical equipment storage box 1. Examples of the electrical equipment 2 include vehicle charging equipment, air conditioners, storage batteries, generators, and other items that are generally installed outdoors.

For example, if the electrical device 2 is a vehicle charging device, an air conditioner, or a storage battery, it is electrically connected as a load to the electrical device storage box 1, and power is supplied from the electrical device storage box 1. Also, if it is a generator that generates power using renewable energy such as a solar power generation device or a wind power generation device, it is electrically connected as a power source for the electrical device storage box 1, and can supply power to a load that is separately connected to the electrical device storage box 1.

The mounting base 5 fixed to the utility pole 4 is for placing the electrical equipment storage box 1 and the electrical equipment 2 on it. It is preferable to fix the electrical equipment storage box 1 and the electrical equipment 2 placed on the mounting base 5 to the utility pole 4 with a mounting bracket so that they do not fall over. The mounting bracket may have any structure, but for example, the mounting bracket may be formed by a mounting band 32 that surrounds the entire circumference of the utility pole 4 and a bracket main body 31 that is fixed to the electrical equipment storage box 1 and the electrical equipment 2.

When using mounting brackets, for example, the bracket body 31 is fixed to the back or side of the electrical equipment storage box 1 or electrical equipment 2 by screws or welding, and then the electrical equipment storage box 1 or electrical equipment 2 is placed on the mounting base 5, and the mounting band 32 is passed through the bracket body 31, and then the electrical equipment storage box 1 or electrical equipment 2 is secured to the electrical pole 4 via the mounting bracket by surrounding it with the utility pole 4 and tightening it.

The method of installing the electrical equipment storage box 1 and the electrical equipment 2 on the utility pole 4 preferably includes the steps of fixing the mounting base 5 to the utility pole 4 so as to sandwich the utility pole 4, placing the electrical equipment storage box 1, which pulls in the electric wires 41 from the utility pole 4, and the electrical equipment 2, which is electrically connected to the electrical equipment storage box 1, on the mounting base 5, and supporting the electrical equipment storage box 1 and the electrical equipment 2 on the utility pole to prevent them from falling over.

Here, we will explain some specific examples of the arrangement of the electrical equipment storage box 1 and the electrical device 2. Note that in this explanation, we will assume that the electrical device 2 is a vehicle charging device.

In the example shown in FIG. 1, the electric pole 4 is positioned between the electric equipment storage box 1 and the electric equipment 2. More specifically, the electric equipment storage box 1 and the electric equipment 2, which is a vehicle charging device, are installed in positions facing each other with the electric pole 4 at the center. In this example, a mounting base 5 is provided separately for each of the electric equipment storage box 1 and the electric equipment 2. The mounting base 5 in this embodiment has a cutout portion 51 that allows a portion of the electric pole 4 to be positioned inside. This cutout portion 51 allows a portion of the electric pole 4 to be positioned inside when the mounting base 5 is fixed to the electric pole 4.

The mounting base 5 preferably has an opening 52 through which the electric wires 41 can pass. If such an opening 52 is provided, the opening 52 can be used when inserting the electric wires 41 from the bottom surface of the electrical equipment storage box 1 or the electrical device 2 placed on the mounting base 5 toward the inside, making wiring work easier.

In the example shown in FIG. 5, an opening 52 is formed on the end face of the mounting base 5 opposite the utility pole 4 side so as to be recessed toward the utility pole 4 side, giving the mounting base 5 a generally U-shaped configuration. Note that the mounting base 5 does not need to be limited to this shape, and as can be seen from FIG. 6, the mounting base 5 may not be provided with an opening 52 through which the electric wire 41 can pass.

The mounting base 5 of this embodiment has connection surfaces 53 on the left and right of the cutout 51 that can come into contact with other mounting bases 5. By connecting the mounting bases 5 to each other by bringing the connection surfaces 53 of adjacent mounting bases 5 into contact with each other, it becomes easier to prevent the mounting bases 5 from shifting horizontally.

In the example shown in Figures 4 and 5, two mounting bases 5 of the same shape in plan view are fixed to the utility pole 4, and the connection surfaces 53 located on the left and right of the cutout 51 are in contact with each other, so the angle between the connection surfaces 53 located on the left and right of the cutout 51 is 180 degrees. An electrical equipment storage box 1 is placed on one mounting base 5, and an electrical device 2 is placed on the other mounting base 5. The two mounting bases 5 are configured to cover the entire circumference of the utility pole 4.

When fixing such a mounting base 5 to a utility pole 4, first, the mounting base 5 is moved in the radial direction of the utility pole 4 from both sides of the existing utility pole 4, and the utility pole 4 is sandwiched by fitting a part of the utility pole 4 into the notch 51 of both mounting bases 5. Then, with the connection surfaces 53 of these mounting bases 5 connected, the mounting base 5 is fixed to the utility pole 4.

The structure for fixing the mounting base 5 to the utility pole 4 is not particularly limited, but the mounting bases 5 may be fixed to each other to be fixed to the utility pole 4, or each mounting base 5 may be fixed to the utility pole 4 using a mounting bracket such as a mounting band. When fixing multiple mounting bases 5 to the utility pole 4, the multiple mounting bases 5 may be fixed together.

As can be seen from FIG. 2, the mounting base 5 can be fixed to the utility pole 4 at a position slightly higher than the ground surface. In this way, the space below the mounting base 5 can be used as a wiring space for the electrical equipment storage box 1 and the electrical device 2. When used in this way, it is preferable to provide the mounting base 5 with an opening 52 through which the wiring can pass.

As can be seen from FIG. 7, the mounting base 5 may be provided so as to be in contact with the ground surface. By placing the mounting base 5 on the ground surface, it is not necessary to consider the load applied to the mounting base 5 from the electrical equipment storage box 1 or the electrical equipment 2, and the structure for fixing the mounting base 5 to the utility pole 4 can be simplified. In this case, it is preferable to provide an opening 52 in the mounting base 5 and use the height of the mounting base 5 between the ground surface and the electrical equipment storage box 1 or the electrical equipment 2 as storage space for the electric wires 41 leading to the electrical equipment storage box 1 or the electrical equipment 2.

As can be seen from FIG. 8, the height of the mounting base 5 on which the electrical equipment storage box 1 is placed and the height of the mounting base 5 on which the electrical equipment 2 is placed may be different. Of the electrical equipment storage box 1 and the electrical equipment 2, the heavier one may be placed at a lower position, and if the electrical equipment 2 requires operation such as a vehicle charging device, the electrical equipment 2 may be placed at a lower position. To make this possible, it is preferable to arrange the electrical equipment storage box 1 so that the height of the bottom surface is different from the height of the bottom surface of the electrical equipment 2.

In the embodiment, each mounting base 5 is fixed using a mounting bracket such as a mounting band 32. In the example shown in FIG. 8, a leg 54 is provided on the end of the mounting base 5 opposite the utility pole 4, but this is not essential. However, if the mounting base 5 is provided with a leg 54, the weight of the electrical equipment storage box 1 and the electrical device 2 can be distributed to the leg 54 side even if the mounting base 5 is fixed to the utility pole 4 at a position slightly higher than the ground surface, and therefore the fixing structure of the mounting base 5 to the utility pole 4 can be simplified.

In the example shown in FIG. 1, the electrical equipment storage box 1 and the electrical equipment 2 are installed with their backs facing the utility pole 4, but taking into consideration the size and layout of the installation location, the electrical equipment storage box 1 and the electrical equipment 2 may be arranged with their sides facing the utility pole 4 (see FIG. 9). By orienting the electrical equipment storage box 1 and the electrical equipment 2 in the same direction, work on the electrical equipment storage box 1 and the electrical equipment 2 can be performed more efficiently, such as during maintenance.

In the examples so far, two mounting bases 5 are fixed to one utility pole 4, but the number of mounting bases 5 attached to one utility pole 4 does not have to be limited to two. As can be seen from Figs. 10 to 12, three mounting bases 5 may be fixed to the utility pole 4. The example shown in Fig. 10 shows a structure in which three electrical equipment storage boxes 1 and three electrical devices 2 are installed on three mounting bases 5 attached so that they extend in different directions in a plan view. The height of the mounting bases 5 may be in contact with the ground surface as in the previous example, or may be different.

In this example, the mounting base 5 also has a notch 51 and an opening 52. In the example shown in Figures 8 to 10, the angle between the connection surfaces 53 located on both the left and right sides of the notch 51 is set to 120 degrees so that the utility pole 4 is surrounded by three mounting bases 5 that are approximately the same shape in a plan view.

However, when using a mounting base 5 of this type, it is not necessary to use three mounting bases 5 as a set. For example, as can be seen from Figures 13 and 14, only two mounting bases 5 may be used, with the angle between the directions in which the mounting bases 5 extend being 120 degrees. By installing the mounting bases 5 at an angle of 120 degrees, the electrical equipment storage box 1 and the electrical equipment 2 can be moved to one side, so that the electrical equipment storage box 1 and the electrical equipment 2 can be installed even on a utility pole 4 installed near a wall. Of course, the two mounting bases 5 may be fixed to the utility pole 4 at a distance.

As can be seen from Figs. 15 to 17, four mounting bases 5 may be fixed to one utility pole 4. The example shown in Fig. 15 shows a structure in which four electrical equipment storage boxes 1 and four electrical devices 2 are installed on four mounting bases 5 that are attached so that their extension directions are different in a plan view. The height of the mounting bases 5 may be in contact with the ground surface as in the previous example, or may be different.

In this example, the mounting base 5 also has a notch 51 and an opening 52. In this example, the angle between the connection surfaces 53 located on both the left and right sides of the notch 51 is 90 degrees so that the utility pole 4 is surrounded by four mounting bases 5 that are roughly the same shape in a plan view.

Even in the case of mounting bases 5 of this type, it is not necessary to use four of them as a set. For example, as can be seen from Figures 18 and 19, only two mounting bases 5 may be used, with the angle between the directions in which the mounting bases 5 extend being 90 degrees. By installing the mounting bases 5 at a 90-degree angle, the electrical equipment storage box 1 and the electrical equipment 2 can be moved to one side, so that the electrical equipment storage box 1 and the electrical equipment 2 can be installed even on a utility pole 4 installed close to a wall. Of course, the two mounting bases 5 may be fixed to the utility pole 4 at a distance from each other.

In the above example, the angles of the connection surfaces 53 located on both the left and right sides of the notch 51 of the mounting base 5 are 180 degrees, 120 degrees, and 90 degrees, but the angles are not limited to these and can be any angle. For example, the angle of the connection surfaces 53 located on both the left and right sides of the notch 51 of the mounting base 5 can be 72 degrees, with five mounting bases 5 covering the entire circumference of the utility pole 4, or 60 degrees, with six mounting bases 5 covering the entire circumference of the utility pole 4. Also, it is not necessary to assume that multiple mounting bases 5 of the same shape will cover the entire circumference of the utility pole 4, and the angle can be 150 degrees, for example.

In the examples described so far, multiple mounting bases 5 of approximately the same shape in plan view are fixed to a single utility pole 4 for the electrical equipment storage box 1 and electrical equipment 2, but there is no need to be limited to such examples. For example, mounting bases 5 of different sizes or mounting bases 5 with different angles between the left and right connection surfaces 53 of the cutout portion 51 may be used. In this case, it is preferable to determine the size and shape of the mounting base 5 according to the size of the electrical equipment storage box 1 and electrical equipment 2 to be placed.

In the above examples, multiple mounting bases 5 are provided to mount the electrical equipment storage box 1 and the electrical equipment 2 on separate mounting bases 5, but multiple electrical equipment storage boxes 1 and electrical equipment 2 may be mounted on one mounting base 5. For example, in the example shown in FIG. 20, the mounting bases 5 of the example shown in FIG. 17 are connected together. In this case, two mounting bases 5 of the same shape in plan view are used to sandwich the utility pole 4, but it is also possible to cover the periphery of the utility pole 4 by combining one mounting base 5 of the example shown in FIG. 17 connected together with one mounting base 5 of the example shown in FIG. 17. Of course, there is no need to be limited to such examples, and mounting bases 5 of various shapes may be used.

The present invention has been described above using examples of embodiments, but the present invention is not limited to the above embodiments and can be implemented in various forms.

1 Electrical equipment storage box 2 Electrical equipment 4 Electric pole 5 Mounting base 41 Electric wire

Claims (2)

The electrical equipment storage box includes an electrical equipment housing box for pulling in an electric wire from a utility pole, and an electrical device electrically connected to the electrical equipment housing box.
The mounting base on which the electrical equipment storage box is placed and the mounting base on which the electrical equipment is placed are fixed to the utility pole so as to sandwich the mounting base,
To provide an installation structure for an electrical equipment storage box and an electrical equipment, in which the electrical equipment storage box is supported by a utility pole to prevent it from falling over, and the electrical equipment is supported by the utility pole to prevent it from falling over. A method for mounting an electrical equipment box and an electrical device on a utility pole, comprising the steps of:
Fixing the mounting base to the utility pole so as to sandwich the utility pole;
A step of placing an electrical equipment storage box into which an electric wire is drawn from a utility pole and an electrical device electrically connected to the electrical equipment storage box on the mounting base;
supporting the electrical equipment storage box and the electrical device on a utility pole to prevent the box and the electrical device from falling over;
An electrical equipment storage box comprising the same and a method for mounting an electrical device on a utility pole.

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