Housing complex and circuit constructing method

Abstract

To provide a housing complex and a circuit constructing method in which an owner of an EV can appropriately bear a charging expense of the EV with a simple configuration.SOLUTION: A housing complex 10 of the present invention includes a plurality of dwellings 12, and has a charging stand 20 for charging an electric vehicle EV, and a relay panel 22 that forms a part of a power supply circuit to the charging stand 20 and that is installed in a common area of the housing complex. The relay panel 22 has, for each of the dwellings 12, a connection unit 24 that is electrically connected to a distribution panel 26 of the corresponding dwelling. Of the connection units 24 of the respective dwellings 12, a connection unit 24 to be electrically connected to the charging stand 20 can be switched.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an apartment building and a circuit construction method, and more particularly to an apartment building having a charging facility for charging an electric vehicle, and a circuit construction method for constructing a power supply circuit to the charging facility in the apartment building. [Background technology]

[0002] Owners of electric vehicles (hereinafter referred to as EVs) use charging facilities such as charging stations to charge their EVs as needed (see, for example, Patent Document 1). Electricity fees associated with EV charging are generally borne by the EV owner who uses the charging facilities, but if the EV charging facilities are installed at the owner's home, for example, the power consumption during EV charging can be added to the power consumption at the owner's home. In this case, the cost of EV charging can be paid as a utility fee (electricity fee) at the owner's home. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-162303 A Summary of the Invention [Problem to be solved by the invention]

[0004] There may also be cases where residents of apartment buildings own EVs. In such cases, the EV may be charged using a charging station installed in a parking lot, and the charging station may be connected to an outlet in a common area of ​​the apartment building. However, in such a configuration, the charging station is not connected to the power supply equipment (specifically, a distribution board, etc.) installed in the EV owner's apartment, making it difficult to charge the EV charging costs to the EV owner's apartment.

[0005] On the other hand, a case may be considered in which a dedicated charging station is installed for each of the multiple dwelling units in an apartment complex, and each charging station is connected to the power supply equipment (distribution board, etc.) of the corresponding dwelling unit. In this case, when an EV owner charges his / her EV, the cost of EV charging can be charged individually to that person's dwelling unit. However, not all residents of the dwelling units in an apartment complex will necessarily own EVs, and charging stations will not be necessary for dwelling units of households that do not own EVs. As a result, some charging equipment will not be used effectively, and costs will be wasted on maintaining and managing unnecessary equipment.

[0006] The present invention has been made in consideration of the above-mentioned problems, and has as its object to provide an apartment building that enables EV owners to cover the costs of charging their EVs appropriately and with a simple configuration. Another object of the present invention is to provide a method for constructing a power supply circuit to EV charging equipment in an apartment building so that EV owners can appropriately cover the costs of charging their EVs. [Means for solving the problem]

[0007] The above problem is solved by the apartment building of the present invention, which is an apartment building including a plurality of dwelling units, comprising a charging equipment for charging electric vehicles, and a relay panel which forms part of a power supply circuit to the charging equipment and is installed in a common area of ​​the apartment building, wherein the relay panel is provided with a connection part for each dwelling unit that is electrically connected to the distribution board of each dwelling unit, and among the connection parts for each dwelling unit, the connection part which is electrically connected to the charging equipment is switchable. According to the above configuration, among the residents of the apartment complex, the owner of the electric vehicle can appropriately and simply bear the charging costs of the electric vehicle. Furthermore, even if the owner of the electric vehicle changes in the apartment complex, the burden of the charging costs can be easily switched.

[0008] In the apartment building of the present invention, it is preferable that any one of the connection parts for each dwelling unit is electrically connected to a charging facility. According to the above configuration, when only one of the dwelling units in an apartment building owns an electric vehicle, a charging circuit dedicated to that dwelling unit is provided for that dwelling unit, so that the dwelling unit that owns the electric vehicle can charge the electric vehicle through the charging circuit dedicated to that dwelling unit.

[0009] In the apartment building of the present invention, the relay panel may be attached to an exterior wall of the common area of ​​the apartment building. According to the above-described configuration, the relay panel is more easily accessible, and the task of switching dwelling units having dedicated charging circuits in an apartment building (electrical work) can be more easily performed.

[0010] In addition, in the apartment building of the present invention, the charging equipment of the present invention is a charging stand having a charging jack for electric vehicles, and it is preferable that the number of charging stands provided in the apartment building is less than the number of dwelling units included in the apartment building. According to the above configuration, by reducing the number of charging stations installed as charging facilities, it is possible to reduce the burden associated with maintaining and managing the charging stations in an apartment complex.

[0011] In the apartment building of the present invention, the connection portion provided in the relay panel may be a molded case circuit breaker.

[0012] The housing complex of the present invention may further include a distributed power source. In this case, the distribution board of each dwelling unit may be electrically connected to the distributed power source, and power supplied from the distributed power source may be supplied to the charging equipment via the distribution board of the dwelling unit, the connection part of which is electrically connected to the charging equipment. According to the above configuration, the power supplied from the distributed power source can be used to charge the electric vehicle via a distribution board of the dwelling whose connection part is electrically connected to the charging facility, i.e., a distribution board installed in the dwelling of the electric vehicle owner. With this configuration, the consumption amount (power consumption amount) of the power supplied from the distributed power source that is used to charge the electric vehicle can be reflected in the measurement value of the power supplied via the distribution board of the dwelling of the electric vehicle owner.

[0013] In addition, in the apartment building of the present invention, the distributed power source may be a power generating facility that generates power from renewable energy. In the above configuration, it is more preferable that a conversion device that converts DC power generated by the power generation facility into AC power is provided for each dwelling unit, and that the conversion device is connected to a distribution board in each dwelling unit. This makes it easier to have the owner of the electric vehicle pay the fee equivalent to the amount of power consumed that is generated by the power generation facility and used to charge the electric vehicle.

[0014] In the apartment building of the present invention, the distributed power source may be a storage battery that stores electricity and releases the stored electricity for supply.

[0015] In addition, the apartment building of the present invention may be provided with a switchable switch provided in each dwelling unit and arranged between the distribution board and the connection portion. According to the above configuration, the power supply state between the distribution board of the electric vehicle owner's home and the charging equipment can be switched by operating a switch installed in the home, thereby preventing a situation in which power is inadvertently supplied from the home to the charging equipment.

[0016] Furthermore, the above-mentioned problems are solved by the circuit construction method of the present invention, which is a circuit construction method for constructing a power supply circuit to charging equipment for charging an electric vehicle in the above-mentioned apartment building, in which a connection part corresponding to the dwelling of the electric vehicle owner, among the connection parts provided for each dwelling unit on the relay panel, is electrically connected to the charging equipment, and when the dwelling unit of the electric vehicle owner is changed, the connection part that electrically connects to the charging equipment is switched to the connection part that corresponds to the dwelling unit of the new electric vehicle owner. According to the above method, when the owner of an electric vehicle changes in an apartment building, the burden of the charging costs for the electric vehicle can be easily switched to the dwelling unit of the new owner. Effect of the Invention

[0017] In the housing complex of the present invention, the electricity owner can bear the EV charging costs appropriately and simply. By using the circuit construction method of the present invention, when the owner of an electric vehicle changes in the housing complex, the burden of the electric vehicle charging costs can be easily switched to the residence of the new owner. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic diagram showing the configuration of an apartment building according to one embodiment of the present invention. [Diagram 2] This is a diagram showing a power supply circuit to charging equipment in an apartment building, showing the state before the electric vehicle owner is changed (left diagram) and the state after the owner is changed (right diagram). [Diagram 3] FIG. 13 is a schematic diagram showing the configuration of an apartment building according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] <<About one embodiment of the present invention>> Hereinafter, an apartment house and a circuit construction method according to one embodiment of the present invention (hereinafter, the first embodiment) will be described with reference to the accompanying drawings. However, the embodiment described below is merely an example for facilitating understanding of the present invention, and does not limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit of the present invention. Furthermore, the present invention naturally includes its equivalents. In the drawings referred to below, each component is illustrated somewhat simplified and schematic in order to make the description easier to understand.

[0020] In this specification, an "apartment building" includes multiple dwelling units, such as an apartment or condominium, and a "resident" is a person (household) who lives in a dwelling unit in the apartment building. In the following explanation, an apartment building 10 including four dwelling units will be given as a specific example. However, the number of dwelling units included in an apartment building can be set to any number equal to or greater than two.

[0021] As shown in FIG. 1, the apartment house 10 according to the first embodiment has dwelling units 12 as spaces exclusively for the residents, and a common area 14. The apartment house 10 includes multiple dwelling units 12, and in the first embodiment, four dwelling units 12 are included. In the following description, the four dwelling units 12 may be referred to as "#1", "#2", "#3", and "#4". The common area 14 is a space shared by the residents of each dwelling unit 12 in the apartment house 10, and specifically includes the entrance, entrance hall, corridor, rooftop, common rooms, and the like. The exterior walls of the apartment house 10 are also included in the common areas.

[0022] In the first embodiment, the resident of only one of the four dwelling units 12 owns an electric vehicle EV. Here, the electric vehicle EV corresponds to an electric vehicle, and in this specification, plug-in hybrid vehicles are also included in the electric vehicle EV. Note that the electric vehicle may be any vehicle that runs on electricity, and may be a vehicle other than an automobile, such as a motorcycle (two-wheeled motor vehicle).

[0023] As shown in Fig. 1, the apartment building 10 has a parking lot 16, and a charging stand 20 is installed in the parking lot 16. The charging stand 20 is a charging facility for charging an electric vehicle EV, and has a charging jack 20a for the electric vehicle EV.

[0024] Charging stand 20 is a well-known charging stand that is locked when not in use for crime prevention purposes and unlocked when in use. When locked, a cover covering charging jack 20a is closed and the charging jack cannot be accessed, and when unlocked, the cover opens and charging jack 20a becomes accessible. When charging an electric vehicle EV, a charging plug for the electric vehicle EV is inserted into charging jack 20a of charging stand 20.

[0025] The number of charging stations 20 provided in the apartment building 10 is less than the number of dwelling units 12 included in the apartment building 10, and in the first embodiment, there is only one. However, this is not limited to this, and the number of charging stations 20 may be any number as long as it is less than the number of dwelling units in the apartment building 10.

[0026] In the first embodiment, as shown in Fig. 1, a relay panel 22 is installed in the common area 14 of the apartment building 10. As shown in Fig. 2, the relay panel 22 is an electrical panel that constitutes part of the power supply circuit 30 to the charging station 20, and is housed in a case (not shown) with an opening and closing door. The relay panel 22 is attached to the exterior wall 18 of the common area 14 while being housed in the case, and more specifically, is fixed to a portion of the exterior wall 18 that faces the parking lot 16. Providing the relay panel 22 in this manner in the common area 14 facilitates wiring work in the relay panel 22, more specifically, electrical work related to switching the target connection parts described later. The installation position (height) of the relay panel 22 is not particularly limited, but is preferably a position (height) suitable for carrying out the switching work of the target work in the relay panel 22.

[0027] The configuration of the relay panel 22 will be described. As shown in FIG. 2, the relay panel 22 is provided with a connection section 24 consisting of a molded-case circuit breaker (breaker) and a pilot switch for each dwelling unit 12. That is, the relay panel 22 is provided with four connection sections 24, and each connection section 24 is electrically connected to a distribution board 26 provided in a corresponding one of the four dwelling units 12. Here, being electrically connected means that a circuit between two devices to be connected is in a state in which electricity can be passed. That is, the connection section 24 and the distribution board 26 may be directly connected by wiring, or may be indirectly connected by interposing another device (e.g., a relay device) on the circuit between the connection section 24 and the distribution board 26.

[0028] Meanwhile, one of the connection parts 24 for each dwelling unit 12 (hereinafter referred to as the target connection part) is electrically connected to the charging stand 20. The target connection part and the charging stand 20 may be directly connected by wiring, or may be indirectly connected by interposing another device on the circuit between the target connection part and the charging stand 20.

[0029] The connection part 24 connected to the distribution board 26 of the dwelling unit 12 of the owner of the electric vehicle EV is electrically connected to the charging stand 20 as a target connection part. This establishes a dedicated charging circuit between the dwelling unit 12 of the owner of the electric vehicle EV and the charging stand 20. As a result, when the owner of the electric vehicle EV inserts the charging plug of the electric vehicle EV into the charging jack 20a of the charging stand 20, the electric vehicle EV is charged. In other words, power from a power source (e.g., a commercial power source) is supplied to the electric vehicle EV via the distribution board 26 of the dwelling unit 12 of the owner of the electric vehicle EV and the target connection part.

[0030] As described above, in the first embodiment, a charging circuit dedicated to the dwelling 12 of an owner of an EV is constructed, so that the charging costs of the electric vehicle EV can be appropriately borne by the owner of the electric vehicle EV and not borne by other dwellings 12. In other words, power for charging the electric vehicle EV can be provided from the dwelling 12 of the owner of the electric vehicle EV, and the electricity fee for charging the electric vehicle EV can be charged to the dwelling 12 of the owner of the electric vehicle EV.

[0031] Furthermore, the target connection part can be easily switched in the relay panel 22. To be more specific, in the first embodiment, among the connection parts 24 provided for each dwelling unit 12 in the relay panel 22, the connection wiring is removed from the connection part 24 to which the connection wiring to the charging stand 20 is connected (i.e., the current target connection part). Then, the connection wiring can be easily reconnected to another connection part 24 (i.e., a new target connection part). The manner in which the connection wiring for connection to the charging stand 20 is connected to the connection portion 24 is not particularly limited, but a manner that allows easy attachment and detachment is preferable.

[0032] As described above, in the first embodiment, the distribution board 26 of each dwelling unit 12 included in the apartment building 10 is connected to the connection unit 24 corresponding to each dwelling unit 12 in the relay board 22. Since each of the connection units 24 provided in the relay board 22 is pre-wired to the distribution board 26 of the corresponding dwelling unit 12 among the dwelling units 12 included in the apartment building 10, the connection state between the connection unit 24 and the distribution board 26 has already been established.

[0033] Furthermore, in the relay panel 22, wiring for connection to the charging stand 20 is detachably connected to one of the connection parts 24 for each dwelling unit 12, i.e., the target connection part. In other words, the connection part 24 in the relay panel 22 that is electrically connected to the charging stand 20 can be switched by a simple operation, specifically, electrical work that switches the connection point (connection part 24) with the charging stand 20. This makes it possible to easily configure a power supply circuit to the charging stand 20 and flexibly respond to changes in the owner of the electric vehicle EV.

[0034] To explain in more detail, for example, assume that a resident of dwelling unit #1 12 in an apartment building 10 owns an electric vehicle EV and has concluded a contract with the owner of the apartment building 10 to use the charging stand 20. In this case, as shown in the left diagram of FIG. 2, among the connections 24 provided for each dwelling unit 12 in the relay panel 22, the connection 24 corresponding to dwelling unit #1 12 (i.e., the dwelling unit of the owner of the electric vehicle EV) is wired and electrically connected to the charging stand 20. This allows the resident of dwelling unit #1 12 to use the charging stand 20. In other words, a charging circuit dedicated to dwelling unit #1 is constructed.

[0035] Thereafter, for example, it is assumed that the occupants of the dwelling units 12 #1 and #2 change and the new resident of the dwelling unit 12 #2 uses the electric vehicle EV, that is, the dwelling unit 12 of the owner of the electric vehicle EV changes from #1 to #2. In this case, a wiring changeover work (electrical work) is performed in the relay panel 22 to switch the wiring connected to the charging stand 20 from the connection part 24 corresponding to the dwelling unit 12 #1 to the connection part 24 corresponding to the dwelling unit 12 #2. That is, as shown in the right diagram of FIG. 2 , the connection part 24 that electrically connects to the charging stand 20 is switched to the connection part 24 corresponding to the dwelling unit 12 of the owner of the electric vehicle EV after the change (the dwelling unit 12 #2) among the connection parts 24 provided for each dwelling unit 12 in the relay panel 22. This allows the resident of the dwelling unit 12 #2 to use the charging stand 20. In other words, the authority to use the charging station 20 is transferred from the resident of dwelling unit 12 #1 to the resident of dwelling unit 12 #2 (i.e., the owner of the new electric vehicle EV), and the charging circuit for the electric vehicle EV is switched from dwelling unit #1 to dwelling unit #2.

[0036] As described above, in the apartment building 10 of the first embodiment, a dedicated circuit for the dwelling unit 12 of the owner of the electric vehicle EV can be constructed as a charging circuit for the electric vehicle EV (i.e., a power supply circuit to the charging station 20). Furthermore, when the owner of the electric vehicle EV changes in the apartment building 10, the charging circuit can be easily switched so that it can be used by the new owner.

[0037] In the first embodiment, the relay panel 22 is attached to the exterior wall 18 of the common area 14 of the apartment building, so that the charging circuit can be switched more easily. This makes it possible to flexibly respond to changes in the dwelling units 12 in which owners of electric vehicles EV live in the apartment building 10.

[0038] <<About other embodiments of the present invention>> The apartment house of the present invention may be equipped with a distributed power source. Hereinafter, as another embodiment of the present invention (hereinafter, second embodiment), the configuration of an apartment house equipped with a distributed power source will be described with reference to FIG. In the following, the configuration of the apartment house according to the second embodiment (hereinafter, the apartment house 10X) will be mainly described with respect to the differences from the apartment house 10 according to the first embodiment. In addition, in Fig. 3, the components of the apartment house 10X that are common to the first embodiment will be denoted by the same reference numerals as those in the first embodiment (i.e., the reference numerals used in Figs. 1 and 2).

[0039] In the second embodiment, as shown in Fig. 3, an apartment building 10X is equipped with a solar power generation system 40 and a storage battery 44 as distributed power sources, and each dwelling unit 12 of the apartment building 10X can use power supplied from these power sources. To explain in more detail, the solar power generation system 40 and the storage battery 44 are each electrically connected to the distribution board 26 of each dwelling unit 12 of the apartment building 10X, and each dwelling unit 12 can use the power supplied from each of the solar power generation system 40 and the storage battery 44 (hereinafter referred to as power from the distributed power sources) via the distribution board 26 of each dwelling unit 12.

[0040] Furthermore, the power of the distributed power source can be supplied to the charging stand 20 via a distribution board 26 of a dwelling unit whose connection unit 24 is electrically connected to the charging stand 20 as a target connection unit, i.e., the dwelling unit of the owner of the electric vehicle EV. Furthermore, the electricity fee when the power of the distributed power source is used to charge the electric vehicle EV can be charged to the dwelling unit 12 of the owner of the electric vehicle EV. To explain in more detail, the amount of power consumed in each dwelling unit 12 is determined for each dwelling unit by measuring the amount of power supplied via the distribution board 26 with an electric meter (not shown). Therefore, when the power of the distributed power source is used to charge the electric vehicle EV, the amount of power consumed is reflected in the measurement value of the power supplied via the distribution board 26 of the dwelling unit of the owner of the electric vehicle EV.

[0041] The solar power generation facility 40 is an example of a power generation facility, and generates DC power from the light energy of sunlight, which is a renewable energy source, by using solar panels installed on the roof of the apartment building 10X. In the second embodiment, the solar panels constituting the solar power generation facility 40 are divided into a plurality of modules 40a, and specifically, the solar power generation facility 40 is partitioned into the same number of modules 40a as the number of dwelling units 12 in the apartment building 10X. Each module 40a is assigned to each dwelling unit 12, and supplies power (more specifically, DC power) to the corresponding dwelling unit 12. Each dwelling unit 12 can use the power generated by the solar power generation facility 40, and in particular, in the dwelling unit 12 of an owner of an electric vehicle EV, the electric vehicle EV can be charged using the power generated by the solar power generation facility 40.

[0042] In addition, power generation facilities as distributed power sources are not limited to those that generate power using solar power as renewable energy, but may also generate power using other renewable energy sources such as wind power, hydroelectric power, or geothermal heat.

[0043] In the second embodiment, as shown in Fig. 3, each dwelling unit 12 is provided with a power conditioner 42 as a conversion device. The power conditioner 42 converts DC power generated by the solar power generation equipment 40 into AC power, and is disposed on the upstream side (closer to the power source) of the distribution board 26 of each dwelling unit 12 and connected to the distribution board 26 of each dwelling unit 12. In other words, the power generated by the solar power generation equipment 40 is supplied to each dwelling unit 12 via the distribution board 26 of each dwelling unit 12, and when the power is used to charge an electric vehicle EV, the power generated by the solar power generation equipment 40 is supplied to the charging stand 20 via the distribution board 26 of the dwelling unit 12 of the owner of the electric vehicle EV. This makes it easier to have the owner of the electric vehicle EV pay a fee equivalent to the amount of power consumed by the electric vehicle EV that was used to charge the electric vehicle EV, out of the power supplied from the solar power generation equipment 40. In addition, in the above configuration, since a power conditioner 42 is installed in each dwelling unit 12, it is also possible to deal with cases where laws and regulations restrict the conversion of DC power generated by the solar power generation equipment 40 into AC power and then supplying it to each dwelling unit 12.

[0044] Furthermore, in the second embodiment, as shown in FIG. 3, a storage battery 44 is installed in each dwelling unit 12 as a distributed power source. The storage battery 44 stores power supplied from a commercial power source (to be precise, power received during the daytime) and power supplied from the solar power generation facility 40, and discharges the stored power to supply it. In the second embodiment, as shown in FIG. 3, the storage battery 44 is connected to the distribution board 26 of each dwelling unit 12 (specifically, the dwelling unit 12 in which the storage battery 44 is installed). This allows each dwelling unit 12 to use the power stored in the storage battery 44 by discharging it, and in particular, in the dwelling unit of an owner of an electric vehicle EV, the electric vehicle EV can be charged using the power discharged from the storage battery 44. Note that each dwelling unit 12 is required to pay a fee according to the power stored in the storage battery 44, but is not required to pay a fee for the power consumed by discharging the power.

[0045] In the second embodiment, as shown in Fig. 3, each dwelling unit 12 is provided with a pilot switch 32 as a switch that can be switched on and off. The pilot switch 32 is disposed in the power supply circuit 30 between the distribution board 26 of each dwelling unit 12 and the connection unit 24 of each dwelling unit 12, and can be operated within each dwelling unit 12. The connection state (energized state) between the distribution board 26 of each dwelling unit 12 and the connection unit 24 is switched by switching on and off the pilot switch 32. As a result, in the dwelling of an owner of an electric vehicle EV, by turning on the pilot switch 32 when charging the electric vehicle EV, a power supply line is opened from the distribution board 26 of the dwelling unit to the charging stand 20. On the other hand, when the electric vehicle EV is not being charged, the above-mentioned power supply line is cut off by turning off the pilot switch 32. As a result, it is possible to prevent a situation in which power is inadvertently sent from the dwelling unit 12 of the electric vehicle EV owner to the electric vehicle EV during a period when charging is not being performed.

[0046] In the second embodiment, if the electric vehicle EV is a vehicle type compatible with V2H (Vehicle to Home), the electric vehicle EV itself may be used as a distributed power source. That is, the dwelling unit 12 of the owner of the electric vehicle EV may use the power supplied from the electric vehicle EV. [Explanation of symbols]

[0047] 10,10X apartment complex 12 Dwelling Units 14 Common areas 16 Parking 18 Exterior Wall 20 Charging station (charging equipment) 20a charging jack 22 Broadcasting Board 24 Connection 26 Distribution Board 30 Power supply circuit 32 Pilot switch (switch) 40 Photovoltaic power generation facilities (distributed power sources, power generation facilities) 40a module 42 Power conditioner (conversion device) 44 Storage battery (distributed power source) EV Electric Vehicle

Claims

1. An apartment complex including multiple dwelling units, a charging facility for charging the electric vehicle; A relay panel that constitutes a part of a power supply circuit to the charging facility and is installed in a common area of ​​the housing complex, The relay board is provided with a connection part electrically connected to the distribution board of each of the dwelling units, An apartment building, characterized in that the connection part electrically connected to the charging equipment is switchable among the connection parts for each dwelling unit.

2. The apartment building according to claim 1 , wherein any one of the connection parts for each of the dwelling units is electrically connected to the charging facility.

3. The apartment building according to claim 1 , wherein the relay panel is attached to an exterior wall of a common area of ​​the apartment building.

4. the charging facility is a charging station having a charging jack for an electric vehicle; The apartment building according to claim 1 , wherein the number of the charging stations provided in the apartment building is less than the number of dwelling units included in the apartment building.

5. The apartment building according to claim 1 , wherein the connection portion provided on the relay panel is a circuit breaker.

6. Further equipped with distributed power sources, The distribution board of each of the dwelling units is electrically connected to the distributed power source, The apartment building according to claim 1 , wherein the supply power from the distributed power source can be supplied to the charging equipment via the distribution board of the dwelling unit in which the connection portion is electrically connected to the charging equipment.

7. The apartment building according to claim 6 , wherein the distributed power source is a power generation facility that generates power from renewable energy.

8. A conversion device that converts the DC power generated by the power generating facility into AC power is provided for each of the dwelling units, The apartment building according to claim 7 , wherein in each of the dwelling units, the conversion device is connected to the distribution board.

9. 7. The apartment building according to claim 6, wherein the distributed power source is a storage battery that stores electricity and discharges the stored electricity for supply.

10. The apartment building of claim 6 , further comprising a switchable switch provided in each of the dwelling units and disposed between the distribution board and the connection portion.

11. A circuit construction method for constructing a power supply circuit to a charging facility for charging an electric vehicle in an apartment building according to any one of claims 1 to 10, comprising the steps of: Among the connection parts provided for each of the dwelling units in the relay panel, the connection part corresponding to the dwelling unit of the owner of the electric vehicle is electrically connected to the charging facility; A circuit construction method, when the dwelling unit of the owner of the electric vehicle is changed, switching the connection unit that electrically connects to the charging equipment to the connection unit that corresponds to the dwelling unit of the owner of the electric vehicle after the change.

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