JP6837206B2 - Building units, buildings and power supply systems - Google Patents

Description

The present invention relates to a building unit, a building including a building unit, and a power supply system relating to a building including the building unit.

In recent years, a power supply system using a distributed power source such as a power generation device and a power storage device has been proposed (for example, Patent Document 1). As a power generation device, a solar cell, a fuel cell, or the like is known. Further, as a power storage device, a storage battery or the like is known. In addition, for the power generation device and the power storage device, a creation and storage cooperation system will be constructed.

Such a power generation device and a power storage device are installed, for example, in the building of a consumer (power consumer) or in the premises of the building. The electric power generated by the power generation device of the consumer is consumed by the electric power load (electrical equipment, etc.) in the building or stored in the power storage device. As a result, it is possible to efficiently cover the power consumed by the power load of the consumer by combining the power generated by the power generation device, the power supplied from the power system, and the stored power stored in the power storage device.

Further, by using such a power supply system, when the power supply from the power system to the consumer is stopped (power outage) due to a disaster, a plan, or the like, self-sustaining operation can be performed. For example, when a power failure occurs, the electric power stored in the power storage device or the electric power generated by the power generation device is supplied to the electric power load. As a result, power can be supplied to the power load in the building even during a power failure. That is, a power generation device such as a distributed power source and a power storage device can be used as a backup power source for consumers.

Japanese Unexamined Patent Publication No. 2014-197955

However, it is difficult to cover all the power load of the building with the power generated by the power generation device in the event of a power outage. In addition, if all the power load of the building is covered by the stored power of the power storage device at the time of power failure, the remaining capacity of the power storage device will be drastically reduced in a short time, and if the power failure continues for a long time, the priority is high for the user. It may not be possible to supply power to the power load.

On the other hand, the power load of a building is diverse, and some of the power loads are consumed without the user being aware of it. Therefore, in the event of a power outage, which power load is prioritized. It is difficult to properly determine whether power should be allocated. In addition, since the arrangement of electric power loads such as electrical appliances may not be decided before the building is constructed, wiring work such as power outlets should be performed in advance in consideration of power outages when constructing the building. Is also difficult.

The present invention has been made to solve such a problem, and when the power supply from the power system is stopped, the complicated wiring work at the construction site can be performed while suppressing the power consumption by the backup power source. An object of the present invention is to provide a building unit, a power supply system, or the like that can supply power to a specific place or a specific power load in a building without accompanying.

In order to achieve the above object, one aspect of the building unit according to the present invention is a building unit that constitutes a part of a building and is pre-assembled at a place other than the construction site, and is pre-installed at a place other than the construction site. When the power supply from the power system to the building is stopped, the power is supplied to the building unit from the backup power source installed at the construction site of the building.

Further, one aspect of the building according to the present invention includes the above-mentioned building unit installed at the construction site and a building structure constructed at the construction site with the building unit as a core.

Further, one aspect of the power supply system according to the present invention is a building having a building unit that constitutes a part of the building and is pre-assembled at a place other than the construction site, a backup power supply, and power supply of the backup power supply. The building unit has a control unit that controls the destination, the building unit has equipment installed in advance other than the construction site, and a power load, and the control unit supplies power from the power system to the building. When stopped, power is supplied from the backup power source to the power load.

According to the present invention, when the power supply from the power system is stopped, power is supplied to a specific device or room in the building without complicated wiring work at the construction site while suppressing the power consumption by the backup power source. Can be supplied.

It is a perspective view which shows typically the appearance of the building unit which concerns on embodiment. It is a perspective view which shows typically the appearance of the building which concerns on embodiment. It is sectional drawing when the first division unit in the building unit which concerns on embodiment is cut in the horizontal direction. It is sectional drawing when the 2nd division unit in the building unit which concerns on embodiment is cut in the horizontal direction. It is a figure which shows the process at the time of installing the first division unit on the foundation in the construction method of the building which concerns on embodiment. It is a figure which shows the process at the time of installing the 2nd division unit in the construction method of the building which concerns on embodiment. It is a figure which shows the process at the time of constructing the building structure of the first floor part of a building in the building construction method which concerns on embodiment. It is a figure which shows the process at the time of constructing the building structure of the 2nd floor part of a building in the building construction method which concerns on embodiment. It is a figure which shows the structure of the electric power supply system which concerns on embodiment. It is a figure which shows the structure of the power supply system which concerns on the modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that all of the embodiments described below show a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components, assembly and manufacturing steps (processes), step order, and the like shown in the following embodiments are merely examples. It is not intended to limit the invention. Therefore, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept of the present invention will be described as arbitrary components.

Further, each figure is a schematic view and is not necessarily exactly illustrated. In each figure, substantially the same configuration is designated by the same reference numerals, and duplicate description will be omitted or simplified.

(Embodiment)
[Building unit, building]
The configurations of the building unit 1 and the building 2 according to the embodiment will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view schematically showing the appearance of the building unit 1 according to the embodiment. FIG. 2 is a perspective view schematically showing the appearance of the building 2 according to the embodiment. FIG. 3 is a cross-sectional view when the first division unit 10 in the building unit 1 is cut in the horizontal direction, and FIG. 4 is a cross-sectional view when the second division unit 20 in the building unit 1 is cut in the horizontal direction. It is a figure.

As shown in FIGS. 1 and 2, the building unit 1 constitutes a part of the building 2, and the building unit 1 is preassembled at a place other than the construction place (building place) where the building 2 is constructed. For example, the building unit 1 is preassembled in a factory or the like.

Building 2 is, for example, a general house built on a residential site. The building 2 includes a building unit 1 and a building structure constructed at a construction site with the building unit 1 as a core. Such a building unit 1 is also called a core unit which is a core when constructing the building 2.

When constructing a building 2 using a building unit 1, the building unit 1 is transported to a construction site and installed, and a building structure is constructed with the installed building unit 1 as a core. The building structure is constructed by the conventional method. That is, except for the building unit 1, the construction is carried out by the conventional construction method.

The building 2 is made of wood, for example, but may be made of non-wood such as a steel frame. The building 2 is, for example, a house, but may be a non-house such as a store, a factory, or a warehouse. Further, the building 2 is, for example, two stories, but may be three stories or more, or may be one story. The building 2 may have a basement.

The building unit 1 is a core unit in which various facilities such as water supply facilities and electrical facilities necessary for a house are integrated. For example, by consolidating most of the water supply equipment into the building unit 1, it is possible to secure a large living space even in a small house.

The building unit 1 is composed of one or more divided units 1a (unit units). When the building unit 1 constitutes a part of a house having two or more floors, the building unit 1 is composed of a plurality of stacked divided units 1a.

The plurality of division units 1a constitute each of the plurality of floors of the building 2. In the present embodiment, the building unit 1 includes a first division unit 10 (first unit) corresponding to the first floor of the building 2 and a second division unit 20 (second unit) corresponding to the second floor of the building 2. Have. That is, the building unit 1 has a first division unit 10 (first unit) and a second division unit 20 (second unit) as the division unit 1a.

Each division unit 1a is preassembled at a place other than the construction place of the building 2 such as a factory. That is, the first division unit 10 and the second division unit 20 are industrialization units in which various facilities are preliminarily incorporated in factories and the like. By producing the split unit 1a at the factory, it is possible to manufacture the split unit 1a with high quality and high functionality, and it is possible to shorten the construction period at the construction site.

The first division unit 10 and the second division unit 20 assembled at the factory are each transported to the construction site by a transportation vehicle such as a truck or a trailer. The transported first division unit 10 and second division unit 20 are stacked and installed at the construction site, and are connected and fixed to each other.

In this case, as shown in FIG. 1, the first partition unit 10 is arranged and fixed to the foundation 3 made at the construction site. The foundation 3 is, for example, a cloth foundation or a solid foundation made of reinforced concrete. A plurality of anchor bolts (not shown) are embedded in the foundation 3. The first division unit 10 is fixed to the foundation 3 by fastening the anchor bolt and the column base metal fitting 11 provided at the bottom of the column portion of the first division unit 10. The second division unit 20 is installed on the first division unit 10 fixed to the foundation 3, and is connected and fixed to the first division unit 10.

If the height limit of the truck is satisfied or if the height limit of the truck does not exist, the first division unit 10 and the second division unit 20 are transported to the construction site in a state of being connected to each other at a factory or the like. You may.

Each of the first division unit 10 and the second division unit 20 includes, for example, a building structure as a frame structure by a wooden frame construction method. The building structures in the first division unit 10 and the second division unit 20 are preassembled at a factory or the like.

As shown in FIGS. 1 and 3, as a building structure, the first division unit 10 has a rectangular frame-shaped base 12, a plurality of pillars 13 built on the base 12, and a face material 14 spanning between the pillars 13. It has (wall material) and studs 15 and the like arranged between the columns 13. A column base metal fitting 11 that connects the column 13, the base 12, and the large pull to each other is attached to the bottom of the column 13.

As shown in FIGS. 1 and 4, the second division unit 20 has a floor-side horizontal member 22, a plurality of columns 23, a face member 24 (wall material) bridged between the columns 23, and columns as a building structure. It has a stud 25 arranged between the 23 columns, a ceiling-side horizontal member 26 arranged above the column 23, and the like.

As shown in FIGS. 3 and 4, the building unit 1 includes equipment. The equipment is pre-installed in the building unit 1 at a place other than the construction site. The equipment is incorporated into the building unit 1 when assembling the building unit 1 at the factory, for example. The equipment may be installed in at least one of the split units 1a. The equipment is, for example, housing equipment such as water supply equipment, electrical equipment, and air conditioning equipment.

Water-related equipment includes, for example, a unit bath (bathroom), a toilet, a wash basin, a system kitchen, and a water heater (hot water supply system). The water supply equipment may include pipes such as drainage pipes, water supply pipes, and hot water supply pipes.

The electrical equipment includes, for example, power control equipment such as a distribution board, an operation panel for operating equipment such as electrical equipment, an information panel, creation and storage cooperation related equipment, an intercom, a switch, a power outlet, and lighting. .. The electrical equipment may include wiring such as information wiring and electrical wiring.

The air-conditioning equipment includes, for example, an air-conditioning indoor unit such as an air conditioner installed indoors, a heat exchanger installed behind the ceiling, a ventilation system, a ventilation fan, and the like. The electrical equipment may include a duct for air conditioning.

In the present embodiment, as shown in FIG. 3, the first division unit 10 is provided with a toilet 31 and a wash basin 32 as water circulation equipment. Further, as shown in FIG. 4, the second divided unit 20 is provided with a toilet 31, a wash basin 32, and a unit bath 33.

As shown in FIG. 3, the first partition unit 10 has a room 40. That is, the first division unit 10 is provided with a room 40 as one of the floor plans of the building unit 1 (first division unit 10). The room 40 is, for example, a space area having an area of about 1 tsubo. Although not shown, when a kitchen room or a dining room exists adjacent to the room 40 as the building structure of the building 2, the room 40 can be used as a pantry. In this case, food may be stored in the room 40, or electric equipment for the kitchen such as a refrigerator may be installed.

The room 40 is provided with a power outlet 34 as an example of electrical equipment. The power outlet 34 is, for example, a plug-in outlet. As shown in FIG. 3, the room 40 is provided with a hook ceiling 33a for installing a lighting fixture and a wall outlet 34b for power supply as an example of a power outlet 34 which is a plug-in outlet. The hook ceiling 34a is provided on the ceiling of the room 40. The wall outlet 34b is provided on the wall of the room 40. In the present embodiment, three wall outlets 34b are provided on the inner wall surface of the room 40.

As described above, since the wall outlet 34b is provided in the room 40, the electric device (electric power load) purchased by the user after the building 2 is completed can be installed in the room 40. For example, in the room 40, home appliances such as a refrigerator can be installed, but in addition, an information device capable of connecting to the Internet may be installed.

Further, the first division unit 10 is provided with an electrical equipment space 35 and a pipe space 36.

The electrical equipment space 35 is, for example, a storage space provided with an opening / closing door on the front surface, and the electrical equipment and the like are stored in the electrical equipment space 35. The user can operate the electric equipment stored in the electric equipment space 35 by opening the opening / closing door. The electrical equipment space 35 accommodates, for example, electric power control equipment such as a distribution board, an operation panel, an information panel, and equipment related to creation and storage cooperation, but is not limited to this.

The pipe space 36 is, for example, a storage space embedded in a wall. In the present embodiment, the pipe space 36 is provided by utilizing the space between the wash basin 32 and the face material 14. In the pipe space 36, for example, various pipes for water supply equipment such as drainage pipes, water supply pipes and hot water supply pipes, and various pipes for air conditioning and ventilation equipment such as ducts are stored, but various wirings for electrical equipment and the like are stored. It may have been done.

In this embodiment, both the first division unit 10 and the second division unit 20 are provided with water circulation equipment, but only one of the first division unit 10 and the second division unit 20 is provided. May be equipped with water supply equipment. Further, the first division unit 10 and the second division unit 20 may be provided with equipment other than the water supply equipment. Further, although the power outlet 34, the electrical equipment space 35, and the pipe space 36 are provided only in the first division unit 10, they may be provided in both the first division unit 10 and the second division unit 20, or the second division unit 20. It may be provided only in the unit 20.

[Building construction]
Next, an example of the construction method of the building 2 constructed by using the building unit 1 will be described with reference to FIGS. 5A to 5D. 5A to 5D are diagrams showing each step in the construction method of the building according to the embodiment. FIG. 5A shows a process when the first division unit 10 is installed on the foundation 3. FIG. 5B shows a process when the second division unit 20 is installed. FIG. 5C shows a process for constructing the building structure of the first floor of the building 2. FIG. 5D shows a process for constructing a building structure on the second floor of the building 2. In FIGS. 5A to 5D, the face material 14 of the first division unit 10 and the face material 24 of the second division unit 20 are omitted.

As shown in FIG. 5A, the first partition unit 10 of the building unit 1 is installed on the foundation 3 made at the construction site. Specifically, the first division unit 10 transported to the construction site of the building 2 is lifted by a lifting device such as a mobile crane, moved to a predetermined position on the foundation 3 and lowered. At this time, the base 12 of the first partition unit 10 is placed on the foundation 3.

After that, the anchor bolt 3a protruding from the foundation 3 is passed through the column base metal fitting 11 of the base 12 of the first division unit 10, and the anchor bolt 3a and the column base metal fitting 11 are fastened by screwing. As a result, the first partition unit 10 is fixed to the foundation 3.

Next, as shown in FIG. 5B, the second division unit 20 of the building units 1 is installed on the first division unit 10. Specifically, the second division unit 20 transported to the construction site of the building 2 is lifted by a lifting device such as a mobile crane, moved above the first division unit 10 and lowered. At this time, the floor-side horizontal member 22 of the second division unit 20 is placed on the pillar 13 of the first division unit 10.

After that, although not shown, the floor side horizontal member 22 and the pillar 13 are fixed by using a connecting metal fitting. The floor-side horizontal member 22 projects toward the inside of the building 2.

Next, as shown in FIG. 5C, the building structure of the first floor of the building 2 is constructed. Specifically, after installing the second division unit 20, building materials such as horizontal members and wall panels (outer walls) on the first floor are combined with the first division unit 10, and other rooms and entrances on the first floor. After constructing, etc., the second floor of Building 2 will be installed. Pillars may be installed if necessary.

Next, as shown in FIG. 5D, the building structure of the second floor of the building 2 is constructed. Specifically, after installing the second floor, the ceiling side horizontal member 26 is installed above the second division unit 20, and the horizontal member and the building material such as the wall panel (outer wall) of the second floor are divided into the second. After combining with the unit 20 and constructing other rooms on the second floor, the ceiling beams on the second floor will be installed. Pillars may be installed if necessary.

Then, although not shown, after assembling the roof frame, a roof panel is installed and a roofing material such as a roof tile or slate is laid.

As a result, the construction of the building structure of the building 2 is completed. After that, the construction of the outer wall material forming the appearance of the outer wall, the construction of the interior, the construction of the electrical equipment, and the like are performed.

[Power supply system]
Next, the power supply system 100 in the building unit 1 and the building 2 will be described with reference to FIG. FIG. 6 is a diagram showing a configuration of the power supply system 100 according to the embodiment.

As shown in FIG. 6, the power supply system 100 in the present embodiment includes a power system 110, a solar cell 120, a storage battery 130, a power conditioner 140, a distribution board 150, a power switching unit 160, and the like. It is composed of a first power load 171, a second power load 172, and a third power load 173.

In the power supply system 100 configured in this way, when the power supply from the power system 110 to the building 2 is stopped due to a disaster or rolling blackout, the solar cell 120 and the storage battery 130 can be used for self-sustaining operation. it can.

The electric power system 110 is a commercial electric power system that supplies AC power of a predetermined voltage and a predetermined frequency from an electric power company to a consumer. The electric power system 110 in the present embodiment is a single-phase three-wire system or a three-phase three-wire AC power source, and supplies electric power to the building 2.

The solar cell 120 is a power generation device that receives sunlight to generate electricity, and has a plurality of solar cells arranged in a matrix. The solar cell 120 is an example of a backup power source installed at the construction site of the building 2, and is installed on the roof of the building 2, for example, as shown in FIG. In this embodiment, the solar cell 120 is installed on the roof above the building unit 1. As the solar cell 120, for example, a solar cell module having a maximum output of 100 W to 250 W can be used.

As shown in FIG. 6, the solar cell 120 is connected to the power conditioner 140 by electric wiring, and the DC power generated by the solar cell 120 is supplied to the power conditioner 140. A photovoltaic power generation system is constructed by the solar cell 120 and the power conditioner 140.

The storage battery 130 is a power storage device capable of storing electricity, has a function of storing (charging) the power supplied from the power system 110 or the power generated by the solar cell 120, and discharges (discharges) the stored power. ) Has the function of. That is, the storage battery 130 is a secondary battery that can be repeatedly charged and discharged, and is, for example, a lithium ion battery or a lead storage battery. The storage battery 130 is an example of a backup power source installed at the construction site of the building 2. For example, the storage battery 130 is installed on the site of the customer in which the building 2 is constructed, as shown in FIGS. 2 and 3. .. In the present embodiment, the storage battery 130 is installed adjacent to the building unit 1. As the storage battery 130, for example, a storage battery having a storage capacity of 5 to 20 kWh can be used.

As shown in FIG. 6, the storage battery 130 is connected to the power conditioner 140 by electrical wiring, and charge / discharge control is performed by the power conditioner 140. The storage battery 130 outputs DC power when discharged. A power storage system is constructed by the storage battery 130 and the power conditioner 140.

The power conditioner 140 charges the storage battery 130 by using the electric power supplied from the electric power system 110 and the electric power generated by the solar cell 120. Further, the power conditioner 140 converts the DC power (stored power) stored in the storage battery 130 into AC power. Further, the power conditioner 140 converts the DC power generated by the solar cell 120 into AC power. The power conditioner 140 includes an inverter circuit, a converter circuit, and the like.

The power conditioner 140 has a grid interconnection operation function that coordinates the converted AC power with the commercial power supplied by the power grid 110. Further, the power conditioner 140 is connected to the distribution board 150 by electric wiring, and the AC power output from the power conditioner 140 is the first power load 171 and the second power through the distribution board 150. It is supplied to the load 172 and the third power load 173. The AC power output from the power conditioner 140 may be reverse power flow (sold) to the power system 110.

As shown in FIGS. 2 and 3, for example, the power conditioner 140 is installed on the site of the customer in which the building 2 is constructed. In the present embodiment, the power conditioner 140 is installed adjacent to the building unit 1. As a result, the wiring connection between the distribution board 150 and the power switching unit 160 installed in the building unit 1 can be easily performed. Further, by arranging the power conditioner 140 and the storage battery 130 adjacent to each other, the wiring connection between the power conditioner 140 and the storage battery 130 can be easily performed. Further, in the present embodiment, since the solar cell 120 is installed on the roof above the building unit 1, the wiring connection between the power conditioner 140 and the solar cell 120 can be easily performed.

The distribution board 150 is installed on the power supply path between the power system 110 and the power load of the building 2. The distribution board 150 is provided with a main power breaker, a branch breaker, and the like, and the AC power from the power system 110 or the power conditioner 140 is a power load in the building 2 via the main power breaker and the branch breaker. It is supplied to the first power load 171 and the second power load 172, and the third power load 173). The distribution board 150 is installed in the building unit 1. In the present embodiment, it is housed in the electrical equipment space 35 of the first partition unit 10 shown in FIG.

The power switching unit 160 is a control device for switching the output source of the power supplied to the power load of the building 2. In the present embodiment, the power switching unit 160 switches the output source of the power supplied to the power load in the building unit 1. Specifically, the power switching unit 160 uses the power system 110 and the solar cell as an output source of power to be supplied to the first power load 171 of the first division unit 10 of the building unit 1 according to the state of the power system 110. One of 120 and the storage battery 130 is selected.

For example, the power switching unit 160 supplies power from the power system 110 to the first power load 171 when power is being supplied from the power system 110 to the building (in the case of no power failure), and the power system 110 When the power supply to the building 2 is stopped (in the case of a power failure), the power supply path is switched so as to supply the power from the solar cell 120 or the storage battery 130 as the backup power source to the first power load 171.

In the present embodiment, the power switching unit 160 has a function of detecting whether or not power is being supplied from the power system 110 to the building 2. That is, the power switching unit 160 determines whether a power failure has occurred (normally) or a power failure has occurred.

Therefore, when the power switching unit 160 has detected that there is no power failure, the power switching unit 160 does not switch the power supply path to the first power load 171. That is, as the power supply path to the first power load 171, the path (first path) from the power system 110 to the first power load 171 at the normal time is maintained. The electric power from the electric power system 110 at the time of non-power failure is supplied to the first electric power load 171 via the distribution board 150.

On the other hand, when the power switching unit 160 detects that there is a power failure, the power switching unit 160 switches the power supply path to the first power load 171. Specifically, the power switching unit 160 is a solar cell 120 in which the power supply path to the first power load 171 is a backup power source from the path (first path) from the power system 110 to the first power load 171 in the normal state. Alternatively, the power supply path to the first power load 171 is switched so as to be changed to the path (second path) from the storage battery 130 to the first power load 171. The electric power from the solar cell 120 or the storage battery 130 at the time of a power failure is supplied to the first electric power load 171 via the power conditioner 140.

In this way, the power switching unit 160 functions as a control unit that controls the power supply destination of the solar cell 120 or the storage battery 130 that serves as a backup power source.

Each of the first power load 171 and the second power load 172 and the third power load 173 are one or more load devices that consume power in the consumer and operate by the power supplied. The first power load 171 and the second power load 172 and the third power load 173 are equipment installed in the building 2, electrical equipment arranged in the building 2, and the like.

The first power load 171 is arranged in the first partition unit 10 of the building unit 1. As an example, the first electric power load 171 is a water supply facility such as a toilet 31, various electric devices, or a lighting or electric device connected to a power outlet 34. Examples of the electric device connected to the power outlet 34 include an information device such as a television, a refrigerator, and a personal computer, or a charger for various devices.

The first power load 171 operates by AC power supplied from the power system 110, the solar cell 120, or the storage battery 130 during a non-power failure (normal time), and is supplied from the solar cell 120 or the storage battery 130 during a power failure. Operates on AC power. That is, the first power load 171 is a self-sustaining power load that operates by self-sustaining operation in the event of a power failure. The output source of the electric power supplied to the first electric power load 171 is switched by the electric power switching unit 160 according to the electric power supply state from the electric power system 110 to the building 2.

The second power load 172 is arranged in the second division unit 20 of the building unit 1. Further, the third electric power load 173 is arranged at a place other than the building unit 1 of the building 2. Similar to the first power load 171, the second power load 172 and the third power load 173 are water-related equipment such as a toilet, various electric equipment, or lighting or electric equipment connected to a power outlet.

In the present embodiment, the second power load 172 and the third power load 173 operate by AC power supplied from the power system 110, the solar cell 120, or the storage battery 130 during non-power failure (normal time). On the other hand, the second power load 172 and the third power load 173 do not operate in the event of a power failure because the power supply to the second power load 172 and the third power load 173 is stopped. That is, the second power load 172 and the third power load 173 are general power loads that do not operate independently in the event of a power failure.

In the power supply system 100 configured in this way, when the power supply from the power system 110 to the building 2 is stopped (when a power failure occurs), power is supplied to the building unit 1 from the solar cell 120 or the storage battery 130 as a backup power source. Will be done. In the present embodiment, in the event of a power failure, power is supplied from the solar cell 120 or the storage battery 130 as a backup power source only to the first partition unit 10 of the first partition unit 10 and the second partition unit 20.

In this case, the power switching unit 160 switches the output source of the power supplied to the first division unit 10, so that the power from the solar cell 120 or the storage battery 130, which is the backup power source, is supplied to the first division unit 10.

Specifically, when power is being supplied from the power system 110 to the building 2 (when there is no power failure), the power system 110, the solar cell 120, or the storage battery 130 via the distribution board 150. Is supplied to the first division unit 10 (first power load 171).

On the other hand, when the power supply from the power system 110 to the building 2 is stopped (when there is a power failure), the power from the solar cell 120 or the storage battery 130, which is the backup power source, is first divided without going through the distribution board 150. It is supplied to the unit 10 (first power load 171). In the present embodiment, in the event of a power failure, the electric power from the solar cell 120 or the storage battery 130 is directly supplied from the power conditioner 140 without passing through the distribution board 150.

Further, in the event of a power failure, power is supplied from the solar cell 120 or the storage battery 130, which serves as a backup power source, to the power outlet 34 provided in the first partition unit 10.

In the present embodiment, in the event of a power failure, the backup power source (solar cell 120 or the solar cell 120 or the third power load 173 installed other than the second division unit 20 and the building unit 1 is used. Although the power supply of the storage battery 130) is stopped, the power supply of the backup power source (solar cell 120 or the storage battery 130) is also stopped for the equipment of the first division unit 10. Specifically, in the event of a power failure, the power supply to the toilet 31 of the first division unit 10 is stopped.

[Effects, etc.]
The building unit 1 according to the present embodiment constitutes a part of the building 2 and is pre-assembled at a place other than the construction site, and has equipment pre-installed at a place other than the construction site. When the power supply from the power system 110 to the building 2 is stopped, the building unit 1 is configured to supply power to the building unit 1 from a backup power source installed at the construction site of the building 2.

Further, the power supply system 100 according to the present embodiment has a building 2 having such a building unit 1, a backup power supply, and a control unit for controlling a power supply destination of the backup power supply. Then, when the power supply from the power system 110 to the building 2 is stopped, the control unit supplies power to the building unit 1 from the backup power supply.

As the backup power source, for example, the storage battery 130 is mainly used, but the solar cell 120 may be used.

In this way, when the power supply from the power system 110 to the building 2 is stopped (when there is a power failure), the power of the backup power supply is supplied to the building unit 1, so that it can be used as a specific location in the building 2 at the time of a power failure. Electric power can be concentrated on the building unit 1. That is, in the event of a power failure, only the building unit 1 can be operated independently, and the building unit 1 can function as a shelter in the event of a power failure.

Further, by setting the power supply destination only to the building unit 1 in the event of a power failure, it is possible to install a specific power load (equipment, electric appliances, etc.) having a high priority for the user in the building unit 1 in advance in the event of a power failure. It will be possible. That is, the power load required by the user in the event of a power failure can be intentionally installed in the building unit 1 in advance. As a result, when a power failure occurs, power can be preferentially allocated to a specific power load installed in the building unit 1, so that the user can use the power load required by himself / herself even during a power failure. can do. Moreover, by setting the power supply destination only to the building unit 1 at the time of a power failure, there is an advantage that the wiring work assuming the time of a power failure need to be performed only for the building unit 1.

Further, by setting the power supply destination only to the building unit 1 at the time of a power failure, the specific power load required by the user at the time of a power failure can be concentrated and installed in the building unit 1 in advance. As a result, it is possible to prevent the remaining capacity of the storage battery 130 from drastically decreasing in a short time in the event of a power failure, so that even if the power failure continues for a long time, it is possible to continue supplying power to a specific power load having a high priority for the user. It becomes.

As described above, according to the building unit 1 and the power supply system 100 in the present embodiment, when the power supply from the power system 110 is stopped, the complicated wiring work at the construction site is performed while suppressing the power consumption by the backup power source. It is possible to supply electric power to a specific place or a specific electric power load in the building 2 without being accompanied by.

Further, the building unit 1 in the present embodiment further has a power switching unit 160 for switching the output source of the power supplied to the power load of the building unit 1, and the power switching unit 160 is a power system 110. When the power supply from the power system 110 to the building 2 is performed, the power from the power system 110 is supplied to the power load of the building unit 1, and when the power supply from the power system 110 to the building 2 is stopped, the backup power supply is supplied. The power supply path is switched so as to supply the power from the power to the power load of the building unit 1. In the power supply system 100, the power switching unit 160 functions as a control unit that controls the power supply destination of the solar cell 120 or the storage battery 130 that serves as a backup power source.

By providing the power switching unit 160 in the building unit 1 in this way, in the event of a power failure, the output source of the power supplied to the power load of the building unit 1 can be easily switched from the power system 110 to the backup power supply. it can.

Further, the building unit 1 in the present embodiment further has a distribution board 150 installed on the power supply path between the power system 110 and the power load, and supplies power from the power system 110 to the building 2. If this is done, the power from the power system 110 is supplied to the power load via the distribution board 150, and if the power supply from the power system 110 to the building 2 is stopped, the power distribution board 150 is turned on. Power from the backup power source is supplied to the power load without going through.

As a result, in the event of a power failure, the power from the backup power source can be easily supplied to the power load of the building 2.

Further, the building unit 1 in the present embodiment has a first division unit 10 corresponding to the first floor of the building 2 and a second division unit 20 corresponding to the second floor of the building 2, and the power system 110 to the building 2 When the power supply to is stopped, the power of the backup power supply is supplied only to the first division unit 10 of the first division unit 10 and the second division unit 20.

In this way, by supplying the power of the backup power supply only to the first partition unit 10 in the event of a power failure, the first partition unit 10 corresponding to the first floor portion that is easy for the user to use as a specific place in the building 2 during a power failure. The power supply can be concentrated on. That is, in the event of a power failure, only the first partition unit 10 can be operated independently, and the first partition unit 10 can function as a shelter in the event of a power failure.

Further, by setting only the first division unit 10 as the power supply destination at the time of a power failure, it is possible to install the power load required by the user in the first division unit 10 in advance at the time of a power failure. As a result, when a power failure occurs, power can be preferentially allocated to a specific power load installed in the first partition unit 10.

Further, by setting only the first division unit 10 as the power supply destination at the time of a power failure, the specific power load required by the user at the time of a power failure can be concentrated and installed in the first division unit 10 in advance. .. As a result, it is possible to further prevent the remaining capacity of the storage battery 130 from being drastically reduced in a short time in the event of a power failure.

Further, in the building unit 1 of the present embodiment, the first division unit 10 has a room 40 provided with a power outlet 34, and when the power supply from the power system 110 to the building unit 1 is stopped, a backup power source is used. Power is supplied to the power outlet 34 from.

By providing the power outlet 34 to which power is supplied from the backup power supply in the event of a power failure in this way, it is possible to use the electric device by using the backup power source via the power outlet 34 even in the event of a power failure. For example, by using an information device that can connect to the Internet using the power outlet 34 in the event of a power failure, it is possible to continue to obtain information such as the cause of the power failure from the outside for a long period of time.

Further, the room 40 provided with such a power outlet 34 may be a pantry.

As a result, by installing a refrigerator in the pantry, it is possible to continue using the refrigerator even during a power outage. Therefore, even if the power outage is prolonged due to a disaster or the like, it is possible to eat fresh food or the like kept cold in the refrigerator. Furthermore, by storing water and food in the pantry, it is possible to easily secure water and food to be used in the event of a disaster.

Further, in the building unit 1 in the present embodiment, the power outlet 34 is a hook ceiling 34a for installing a lighting fixture.

As a result, it is possible to supply power to the lighting fixture installed in the hook ceiling 34a by the backup power supply in the event of a power failure, so that the lighting fixture can be turned on even in the event of a power failure. Therefore, it is possible to easily secure the light at the time of a power failure.

Further, in the building unit 1 according to the present embodiment, the power outlet 34 may be a wall outlet 34b provided on the wall.

As a result, power can be supplied to the wall outlet 34b by the backup power supply in the event of a power failure, so that the power load of the electric device or the like can be operated by using the wall outlet 34b even in the event of a power failure.

Further, in the present embodiment, the equipment installed in the building unit 1 is a water supply equipment.

In this way, the construction period of the building 2 at the construction site can be shortened by installing the water supply equipment in the building unit 1 in advance at the factory or the like.

Further, in the building unit 1 according to the present embodiment, when the power supply from the power system 110 to the building 2 is stopped, the power supply from the backup power source to the equipment of the building unit 1 is stopped.

In this way, by intentionally stopping the power supply from the backup power supply to the equipment of the building unit 1 in the event of a power failure, it is possible to suppress unnecessary power consumption of the backup power supply. For example, it is possible to suppress the consumption of the stored power of the storage battery 130.

In this case, the equipment for stopping the power supply by the backup power source may be, for example, the toilet 31.

The toilet 31 consumes more power than the user expects because it has a function of warming the water to make it warm or warming the toilet seat. Therefore, by stopping the power supply from the backup power supply to the toilet 31 in the event of a power failure, it is possible to suppress unnecessary power consumption of the backup power supply. Since the toilet 31 can be washed with water without supplying power, the user can use the toilet 31 without supplying power to the toilet 31.

Further, the building 2 in the present embodiment includes a building unit 1 installed at the construction site and a building structure constructed at the construction site with the building unit 1 as the core.

As a result, it is possible to realize a building 2 capable of supplying power to the building unit 1 by a backup power source in the event of a power failure.

(Modification example)
The building unit, the building, and the power supply system according to the present invention have been described above based on the embodiments, but the present invention is not limited to the above embodiments.

For example, the power supply system may have a configuration as shown in FIG. FIG. 7 is a diagram showing a configuration of a power supply system 200 according to a modified example.

As shown in FIG. 7, in the power supply system 200 in this modified example, dedicated power conditioners 141 and 142 are provided for each of the solar cell 120 and the storage battery 130.

The power conditioner 141 constitutes a photovoltaic power generation system together with the solar cell 120. The power conditioner 141 has a function of converting the DC power generated by the solar cell 120 into AC power.

The power conditioner 142 constitutes a power storage system together with the storage battery 130. The power conditioner 142 has a function of converting the DC power output by the storage battery 130 into AC power, and also has a function of converting AC power from the power system 110 or the photovoltaic power generation system into DC power and supplying it to the storage battery 130. Have.

Since the power supply system 200 in this modification operates in the same manner as the power supply system 100 in the above embodiment, the same effect as the power supply system 100 in the above embodiment can be obtained.

Further, in the above embodiment, the storage battery 130, which is a backup power source, is installed outside the building 2, but may be installed inside the building 2. Further, the storage battery 130 may be installed in the building unit 1. In this case, the storage battery 130 may be incorporated in the building unit 1 in advance at the factory. When the building unit 1 also includes the roof of the building 2, the solar cell 120 may also be incorporated in the building unit 1 in advance at the factory. In this way, by incorporating the backup power supply into the building unit 1 in advance at the factory, construction at the construction site becomes unnecessary, and wiring work between the backup power supply and the distribution board or the like can be easily performed.

Further, in the above embodiment, as the power load installed in the first division unit 10, the first power load 171 connected to the power switching unit 160 is exemplified, but the power load is not limited to this. For example, the first division unit 10 may be provided with a power load that is not connected to the power switching unit 160 (that is, a general power load that does not operate independently in the event of a power failure).

Further, in the above embodiment, the power load installed in the building 2 other than the second division unit 20 and the building unit 1 is a general power load that does not operate independently in the event of a power failure (second power load 172, third power load). 173) has been illustrated, but the present invention is not limited to this. For example, a power load connected to the power switching unit 160 (that is, a self-sustaining power load capable of self-sustaining operation in the event of a power failure) may be installed in the building 2 other than the second division unit 20 and the building unit 1.

Further, in the above embodiment, the distribution board 150 and the power switching unit 160 are installed in the first partition unit 10, but the present invention is not limited to this. The distribution board 150 and the power switching unit 160 may be installed in the second division unit 20, or may be installed in a building 2 other than the building unit 1. Further, the power switching unit 160 may be installed in a place other than the building 2. In this case, the power switching unit 160 may be built in, for example, a power conditioner 140 or the like as a control unit for controlling the power supply destination of the backup power supply, or may be a control device separate from the power conditioner 140. There may be.

Further, in the above embodiment, the solar cell 120 is exemplified as the power generation device, but the power generation device may be a power generation device other than the solar cell such as a fuel cell or a gas engine power generation device.

In addition, a form obtained by applying various modifications to the embodiments and modifications that can be conceived by those skilled in the art, and components and functions in the embodiments and modifications are arbitrarily combined without departing from the spirit of the present invention. The form realized by the above is also included in the present invention.

Further, the power supply system according to the above embodiment can also be realized as a power control method. In this case, it can also be realized as a program that causes a computer to execute an operation (step) included in the power control method. In addition, such programs may include computer-readable recording media (eg, flexible disks, hard disks, CD-ROMs, MOs, DVDs, DVD-ROMs, DVD-RAMs, BDs, USB memory sticks, SD cards and other memory cards. , Semiconductor memory, etc.), or distributed via a transmission medium such as the Internet.

Further, in the above description, the control function of various configurations such as the power switching unit 160 may be a circuit. These circuits may form one circuit as a whole, or may be separate circuits from each other. Further, each of these circuits may be a general-purpose circuit or a dedicated circuit.

Further, the processing described as the operation of the above control function can be executed by the computer. For example, a computer executes the processing of each of the above means by executing a program using hardware resources such as a processor (CPU), a memory, and an input / output circuit. Specifically, each process is executed by the processor acquiring the data to be processed from the memory or the input / output circuit or the like and calculating the data, or outputting the calculation result to the memory or the input / output circuit or the like. ..

1 Building unit 2 Building 10 First partition unit (first unit)
20 Second division unit (second unit)
31 Toilet (equipment)
34 Power outlet 110 Power system 120 Solar cell (backup power supply)
130 storage battery (backup power supply)
150 Distribution board 160 Power switching unit 171 First power load (power load)

Claims (10)

A building unit that forms part of a building and is pre-assembled outside the construction site.
Has pre-installed equipment outside the construction site
When the power supply from the power system to the building is stopped, power is supplied to the building unit from the backup power supply installed at the construction site of the building.
The building unit has a first unit corresponding to the first floor of the building and a second unit corresponding to the second floor of the building.
The first unit includes a water supply facility installed as the facility, a room provided with a power outlet, and a distribution board installed on a power supply path between the power system and the power load of the building unit. Have and
When power is supplied from the power system to the building, power from the power system is supplied to the power loads of the first unit and the second unit via the distribution board. ,
When the power supply from the power system to the building is stopped, the power of the backup power source is the power load of only the first unit among the first unit and the second unit without going through the distribution board. And the power outlet, and the power supply from the backup power source to the water supply facility of the first unit is stopped. Further, it has a power switching unit for switching the output source of the power supplied to the power load of the building unit.
When the electric power is supplied from the electric power system to the building, the electric power switching unit supplies the electric power from the electric power system to the electric power load of the building unit, and the electric power from the electric power system to the building. The building unit according to claim 1, wherein when the supply is stopped, the power supply path is switched so as to supply the power from the backup power source to the power load of the building unit. The building unit according to claim 1 or 2, wherein the room is a pantry. The building unit according to any one of claims 1 to 3, wherein the power outlet is a hook ceiling for installing a lighting fixture. The building unit according to any one of claims 1 to 4, wherein the power outlet is a wall outlet provided on the wall of the room. The building unit according to any one of claims 1 to 5, wherein the equipment is a toilet. The building unit according to any one of claims 1 to 6 installed at the construction site and
A building having the building unit as a core and a building structure constructed at the construction site. Buildings that form part of the building and have pre-assembled building units outside the construction site,
Backup power supply and
It has a control unit that controls the power supply destination of the backup power supply.
The building unit has equipment pre-installed outside the construction site and a power load.
The building unit has a first unit corresponding to the first floor of the building and a second unit corresponding to the second floor of the building.
Wherein the first unit includes an installation water around facilities as the facilities, and the room in which the power outlet provided, the power system distribution board installed on the power supply path between the power load of the building units Have and
The control unit
When power is supplied from the power system to the building, power from the power system is supplied to the power load of each of the first unit and the second unit via the distribution board. And
When the power supply from the power system to the building is stopped, the power of the backup power source is applied to the power of the first unit among the first unit and the second unit without going through the distribution board. A power supply system that supplies power to the power outlet and stops power supply from the backup power supply to the water supply facility of the first unit. The building unit has, as the control unit, a power switching unit for switching an output source of electric power supplied to the power load of the building unit.
When the electric power is supplied from the electric power system to the building, the electric power switching unit supplies the electric power from the electric power system to the electric power load of the building unit, and the electric power from the electric power system to the building. The power supply system according to claim 8, wherein when the supply is stopped, the power supply path is switched so as to supply the power from the backup power supply to the power load of the building unit. The power supply system according to claim 9, wherein the backup power source is a power generation device or a power storage device that stores power generated by the power generation device.

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