JP6912126B1 - Power supply system and distribution board for power outages - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system and a power outage distribution board capable of supplying electric power from a generator to an electric load by using in-house wiring in the event of a power outage by a simple operation. A power supply system 10 supplies electric power from a power generation device 12 to an electric load 13 when a commercial power source 11 has a power failure. Further, in the power supply system 10, when a power failure does not occur, the commercial power supply 11 is supplied to the electric load 13 via the output unit 16 via the in-house wiring 15 laid indoors 14. Will be done. Further, the output unit 16 includes a first output unit 16 and a second output unit 16. Further, in the power supply system 10, when a power failure occurs, the power generation device 12 is connected to the first output unit 16, and power is supplied to the electric load 13 via the home wiring 15 and the second output unit 16. Be supplied. [Selection diagram] Fig. 2

Description

The present invention relates to a power supply system and a power outage distribution board, and more particularly to a power supply system and a power outage distribution board capable of supplying electric power from a generator to an electric load by using in-house wiring in the event of a power outage.

If the supply of electric power from the commercial power source to the indoor is cut off due to a disaster or the like, the operation of the electric load such as the air conditioner and the lighting arranged indoors will be stopped.

In view of this situation, a power supply device has been developed to supply power indoors when a commercial power supply fails. This power supply device is, for example, a generator, a battery, or a vehicle with a power generation function arranged outdoors, and when the commercial power supply fails, power is supplied to the home wiring instead of the commercial power supply. Such a power supply device is described in, for example, the following Patent Document 1 and the like.

Japanese Unexamined Patent Publication No. 2017-123749

However, there is room for improvement in the above-mentioned power supply device from the viewpoint of user convenience and the like.

Specifically, the power supply device according to the background technology is often arranged outdoors. In such a case, if a power failure occurs in the commercial power supply, the user must go outdoors to start the power supply device and switch the power system from the commercial power supply to the power supply device. Further, when the commercial power supply is restored, the user needs to perform the reverse operation. Such work has a problem that it is complicated for the user.

The present invention has been made in view of the above circumstances, and an object of the present invention is an electric power capable of supplying electric power from a generator to an electric load by using a home wiring in the event of a power failure with a simple operation. To provide a supply system and a distribution board for power outages.

The present invention is a power supply system that supplies power to an electric load from a power generator when a commercial power supply fails, and if the power failure does not occur, the in-house wiring laid indoors is provided. The electric power from the commercial power source is supplied to the electric load via the output unit, and from the side of the commercial power source, the distribution board, the power distribution board for power failure, the output unit, and the like. The distribution board has a breaker, and the power failure distribution board includes a plurality of first switching units, a plurality of second switching units, and a plurality of third switching units. The plurality of first switching units each have a first terminal and a second terminal, and the plurality of the second switching units each have a third terminal and a fourth terminal, respectively, and the plurality of the third switching units. The switching unit has a fifth terminal and a sixth terminal, respectively, and the first terminal of the first switching unit is connected to the side of the commercial power supply, and the second terminal of the first switching unit is connected to the commercial power supply side. The third terminal of the second switching unit is connected, the fourth terminal of the second switching unit is connected to the output unit, and the fifth terminal of the third switching unit is the first switching unit. Is connected to a connection line connecting the second terminal of the second switching unit and the third terminal of the second switching unit, and the sixth terminals of the third switching unit are connected to each other from the commercial power supply to the output unit. When power is supplied, the first switching unit is in a connected state, the second switching unit is in a connected state, the third switching unit is in a cutoff state, and when the commercial power supply fails. The first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state. The power failure distribution board, and the output unit is the first. It has an output unit and a second output unit, and when the power failure occurs, the power generation device is connected to the first output unit, and the in-house wiring, the power supply distribution board for power failure, and the second output are provided. It is characterized in that it is configured to supply power from the power generation device to the electric load via a unit and without passing through the breaker of the distribution board.

Further, the power failure distribution board of the present invention is a power failure distribution board interposed between the commercial power supply and the output unit, and has a plurality of first switching units, a plurality of second switching units, and a plurality of units. The first switching unit has a first terminal and a second terminal, respectively, and the plurality of second switching units have a third terminal and a fourth terminal, respectively. Each of the plurality of third switching units has a fifth terminal and a sixth terminal, and the first terminal of the first switching unit is connected to the side of the commercial power source and described as described above. The second terminal of the first switching unit is connected to the third terminal of the second switching unit, the fourth terminal of the second switching unit is connected to the output unit, and the third switching unit is described. The fifth terminal is connected to a connection line connecting the second terminal of the first switching unit and the third terminal of the second switching unit, and the sixth terminal of the third switching unit is connected to each other. When power is supplied from the commercial power source to the output unit, the first switching unit is in the connected state, the second switching unit is in the connected state, and the third switching unit is in the cutoff state. When the commercial power supply fails, the first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state.

Further, in the power generation distribution board of the present invention, the first state in which the commercial power source is cut off and the power generation device is stopped, and the commercial power source is cut off and the power generation device is generating power. The second state, the third state in which the commercial power source is restored and the power generation device is generating power, and the fourth state in which the commercial power source is restored and the power generation device is stopped. In the first state, the first switching unit is in a cutoff state, the second switching part is in a cutoff state, the third switching part is in a cutoff state, and the second state. Then, the first switching unit is in a cutoff state, the second switching part is in a connected state, the third switching part is in a connected state, and in the third state, the first switching part is in a cutoff state. Yes, the second switching unit is in a connected state, the third switching unit is in a connected state, and in the fourth state, the first switching unit is in a connected state and the second switching unit is in a connected state. The third switching unit is in a cut-off state.

Further, in the power failure distribution board of the present invention, priority is set for the electric load, and when the power failure occurs, power is supplied from the power generation device to the electric load having the higher priority. However, it is characterized in that power is not supplied to the electric load having a low priority.

The present invention is a power supply system that supplies power to an electric load from a power generator when a commercial power supply fails, and if the power failure does not occur, the in-house wiring laid indoors is provided. The electric power from the commercial power source is supplied to the electric load via the output unit, and from the side of the commercial power source, the distribution board, the power distribution board for power failure, the output unit, and the like. The distribution board has a breaker, and the power failure distribution board includes a plurality of first switching units, a plurality of second switching units, and a plurality of third switching units. The plurality of first switching units each have a first terminal and a second terminal, and the plurality of the second switching units each have a third terminal and a fourth terminal, respectively, and the plurality of the third switching units. The switching unit has a fifth terminal and a sixth terminal, respectively, and the first terminal of the first switching unit is connected to the side of the commercial power supply, and the second terminal of the first switching unit is connected to the commercial power supply side. The third terminal of the second switching unit is connected, the fourth terminal of the second switching unit is connected to the output unit, and the fifth terminal of the third switching unit is the first switching unit. Is connected to a connection line connecting the second terminal of the second switching unit and the third terminal of the second switching unit, and the sixth terminals of the third switching unit are connected to each other from the commercial power supply to the output unit. When power is supplied, the first switching unit is in a connected state, the second switching unit is in a connected state, the third switching unit is in a cutoff state, and when the commercial power supply fails. The first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state. The power failure distribution board, and the output unit is the first. It has an output unit and a second output unit, and when the power failure occurs, the power generation device is connected to the first output unit, and the in-house wiring, the power supply distribution board for power failure, and the second output are provided. It is characterized in that it is configured to supply power from the power generation device to the electric load via a unit and without passing through the breaker of the distribution board. According to the power supply system of the present invention, when a power failure occurs, a power generation device is connected to one of the output units, and an electric load is supplied via the output unit and the home wiring and the other output unit. There is no need to install a generator outdoors in the event of a disaster, etc. Further, in an emergency, since emergency power is supplied from one of the output units to the other output unit via the existing in-house wiring, it is not necessary to route the emergency wiring indoors.

Further, the power failure distribution board of the present invention is a power failure distribution board interposed between the commercial power supply and the output unit, and has a plurality of first switching units, a plurality of second switching units, and a plurality of units. The first switching unit has a first terminal and a second terminal, respectively, and the plurality of second switching units have a third terminal and a fourth terminal, respectively. Each of the plurality of third switching units has a fifth terminal and a sixth terminal, and the first terminal of the first switching unit is connected to the side of the commercial power source and described as described above. The second terminal of the first switching unit is connected to the third terminal of the second switching unit, the fourth terminal of the second switching unit is connected to the output unit, and the third switching unit is described. The fifth terminal is connected to a connection line connecting the second terminal of the first switching unit and the third terminal of the second switching unit, and the sixth terminal of the third switching unit is connected to each other. When power is supplied from the commercial power source to the output unit, the first switching unit is in the connected state, the second switching unit is in the connected state, and the third switching unit is in the cutoff state. When the commercial power supply fails, the first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state. According to the power failure distribution board of the present invention, it has a first switching unit, a second switching unit, and a third switching unit, and in the case of a power failure state in which the power supply from the commercial power supply is interrupted, the power supply from the commercial power source is interrupted, via the third switching unit. , Emergency power is supplied from one of the output units to the other output unit. Therefore, it is not necessary to dispose the emergency power outdoors, and it is not necessary to lay the emergency wiring indoors, so that the emergency power can be secured with a simple configuration.

Further, in the power generation distribution board of the present invention, the first state in which the commercial power source is cut off and the power generation device is stopped, and the commercial power source is cut off and the power generation device is generating power. The second state, the third state in which the commercial power source is restored and the power generation device is generating power, and the fourth state in which the commercial power source is restored and the power generation device is stopped. In the first state, the first switching unit is in a cutoff state, the second switching part is in a cutoff state, the third switching part is in a cutoff state, and the second state. Then, the first switching unit is in a cutoff state, the second switching part is in a connected state, the third switching part is in a connected state, and in the third state, the first switching part is in a cutoff state. Yes, the second switching unit is in a connected state, the third switching unit is in a connected state, and in the fourth state, the first switching unit is in a connected state and the second switching unit is in a connected state. The third switching unit is in a cut-off state. According to the power failure distribution board of the present invention, the first switching unit, the second switching unit, and the third switching unit are set to the connected state or the cutoff state according to each state of the first state to the second state. In the event of a power outage, electric power can be satisfactorily supplied to the electrical load via the output unit and the wiring in the house.

Further, in the power failure distribution board of the present invention, priority is set for the electric load, and when the power failure occurs, power is supplied from the power generation device to the electric load having the higher priority. However, it is characterized in that power is not supplied to the electric load having a low priority. According to the power outage distribution board of the present invention, power is supplied from the power generation device to the electric load having a high priority, and the power is not supplied to the electric load having a low priority, which is limited. Power during a power outage can be used effectively.

It is a schematic diagram which shows the electric power supply system which concerns on embodiment of this invention. It is a figure which shows the power supply system and the distribution board for power failure which concerns on embodiment of this invention, shows the circuit structure of the distribution board for power failure, etc. It is a circuit diagram which shows the operation of a distribution board. It is a figure which shows the power supply system and the distribution board for power failure which concerns on embodiment of this invention, and is the circuit diagram which shows the operation of the distribution board for power failure at the time of power failure, and when the power generation apparatus is generating power. .. It is a figure which shows the power supply system and the distribution board for power failure which concerns on embodiment of this invention, and is the circuit diagram which shows the operation of the distribution board for power failure at the time of power recovery and when the power generation apparatus is generating power. be. It is a figure which shows the power supply system and the distribution board for power failure which concerns on embodiment of this invention, and is the circuit diagram which shows the operation of the distribution board for power failure at the time of power recovery and when the power generation apparatus is stopped. be.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Further, in the following description, the same members will be designated by the same reference numerals in principle, and the repeated description will be omitted.

FIG. 1 is a schematic view showing a power supply system 10.

The electric power supply system 10 supplies electric power from the power generation device 12 to the electric load 13 when the commercial power source 11 has a power failure. Here, the case where the power supply system 10 is applied to the inside of the indoor 14 of the house 30 is shown. The electrical load 13 is a load connected to an indoor outlet or a load connected to a waterproof outlet arranged outdoors. Further, the electrical load 13 may be arranged indoors or outdoors.

In the power supply system 10, when a power failure has not occurred, the commercial power supply 11 passes through the electric wire 29, the distribution board 31, the home wiring 15, the power failure distribution board 19, and the output unit 16 which is an outlet. Is supplied to the electrical load 13.

On the other hand, when a power failure occurs, the power supply system 10 transfers the power generated by the power generation device 12 to the output unit 16, the home wiring 15, and the power failure distribution board 19 based on the instruction of the arithmetic control unit 32 described later. , The electric load 13 is supplied via the home wiring 15 and the output unit 16.

As the electrical load 13, home appliances used inside the house 30, such as lighting, air conditioners, and cooking utensils, can be adopted.

The configuration and operation of the power supply system 10 will be specifically described with reference to FIGS. 2 to 5.

The power supply system 10 and the power failure distribution board 19 can take the following four states. That is, the first state in which the commercial power source 11 has a power failure and the power generation device 12 has stopped, and the second state in which the commercial power source 11 has a power failure and power is supplied from the power generation device 12 to the output unit 16. The third state in which the commercial power source 11 is restored and the power generation device 12 is generating power, and the fourth state in which the commercial power source 11 is restored and the power generation device 12 is stopped are taken. Can be done.

The first state is shown in FIG. 2, the second state is shown in FIG. 3, the third state is shown in FIG. 4, and the fourth state is shown in FIG. In FIGS. 2 to 5, the current flow is shown by a chain double-dashed line.

FIG. 2 shows a circuit configuration of a power failure distribution board 19 and the like. Further, with reference to FIG. 2, the first state in which the power generation device 12 is stopped during a power failure will be described. In the following description, in the flow of current from the commercial power supply 11 to the electric load 131 or the like, the side closer to the commercial power supply 11 may be referred to as the upstream side, and the side away from the commercial power supply 11 may be referred to as the downstream side.

First, the circuit configuration of the power supply system 10 will be described. The power supply system 10 includes a distribution board 31, a power outage distribution board 19, a power generation device 12, and wiring for connecting each of these devices.

The commercial power supply 11 is AC power supplied from the outside, and its voltage V1 is, for example, 100V.

The distribution board 31 is a device for distributing the electric power supplied from the commercial power source 11, and has a main breaker 33, a breaker 341, a breaker 342, and a breaker 343. The distribution board 31 is generally installed indoors.

The main breaker 33 is arranged on the upstream side of the connecting line inside the distribution board 31. When the main breaker 33 is connected, the commercial power supply 11 can be supplied to the entire power supply system 10, and when the main breaker 33 is cut off, the commercial power supply 11 is supplied to the entire power supply system 10. It will be stopped.

The connecting line of the downstream portion of the main breaker 33 is branched into three, and a breaker 341, a breaker 342 and a breaker 343 are interposed in each connecting line. When the breaker 341, the breaker 342, and the breaker 343 are connected to each other, a current flows to the downstream side of the connecting line in which the breaker 341, the breaker 342, and the breaker 343 are connected. When the breaker 341, the breaker 342, and the breaker 343 are shut off, no current flows to the downstream side of the connecting line to which each is interposed. Here, three breakers 341, breakers 342 and breakers 343 are illustrated, but in reality, a larger number are arranged.

The power failure distribution board 19 includes a first switching unit 20, a second switching unit 21, a third switching unit 22, and an arithmetic control unit 32. As will be described later, by providing the power supply distribution board 19 for power failure, the power supply system 10 can supply power from the output unit 163 to the output unit 161 and the output unit 162 in the event of a power failure. Here, as the first switching unit 201 or the like, which will be described later, a semiconductor element such as a relay that mechanically switches or a transistor that electrically switches can be adopted.

The first switching unit 20 has a first switching unit 201, a first switching unit 202, and a first switching unit 203. As will be described later, the first switching unit 20 is shut off during a power failure to prevent the current generated by the power generation device 12 from flowing to the distribution board 31 side.

The first switching unit 201 has a first terminal 231 and a second terminal 241. The first terminal 231 is connected to the breaker 341. The second terminal 241 is connected to the third terminal 251 of the second switching unit 211, which will be described later, via the connection line 38.

The first switching unit 202 has a first terminal 232 and a second terminal 242. The second terminal 242 is connected to the breaker 342. The second terminal 242 is connected to the third terminal 252 of the second switching unit 212, which will be described later, via the connection line 39.

The first switching unit 203 has a first terminal 233 and a second terminal 243. The second terminal 243 is connected to the breaker 343. The second terminal 243 is connected to the third terminal 253 of the second switching unit 213, which will be described later, via the connection line 40.

The second switching unit 21 has a second switching unit 211, a second switching unit 212, and a second switching unit 213. As will be described later, the second switching unit 21 is in a cutoff state when there is a power failure and the power generation device 12 is not generating power.

The second switching unit 211 has a third terminal 251 and a fourth terminal 261. The third terminal 251 is connected to the second terminal 241 of the first switching unit 201 via the connection line 38. The fourth terminal 261 is connected to the output unit 161.

The second switching unit 212 has a third terminal 252 and a fourth terminal 262. The third terminal 252 is connected to the second terminal 242 of the first switching unit 202 via the connection line 39. The fourth terminal 262 is connected to the output unit 162.

The second switching unit 213 has a third terminal 253 and a fourth terminal 263. The third terminal 253 is connected to the second terminal 243 of the first switching unit 203 via the connection line 40. The fourth terminal 263 is connected to the output unit 163. Here, for example, the output unit 161 and the output unit 162 are the first output unit, and the output unit 163 is the second output unit.

The third switching unit 22 has a third switching unit 221, a third switching unit 222, and a third switching unit 223. The third switching unit 22 is in a connected state when power is supplied from the power generation device 12 to the electric load 131 and the electric load 132. Further, the third switching unit 22 is shut off when power is supplied from the commercial power source 11. Here, for example, the electrical load 131 is the first load, and the electrical load 132 is the second load.

The third switching unit 221 has a fifth terminal 271 and a sixth terminal 281. The fifth terminal 271 is connected to the connection line 38 via the connection line 41. The sixth terminal 281 is connected to the sixth terminal 282 of the third switching unit 222 and the sixth terminal 283 of the third switching unit 223 via the connection line 37.

The third switching unit 222 has a fifth terminal 272 and a sixth terminal 282. The fifth terminal 272 is connected to the connection line 39 via the connection line 42. The sixth terminal 282 is connected to the sixth terminal 281 of the third switching unit 221 and the sixth terminal 283 of the third switching unit 223 via the connection line 37.

The third switching unit 223 has a fifth terminal 273 and a sixth terminal 283. The fifth terminal 273 is connected to the connection line 40 via the connection line 43. The sixth terminal 283 is connected to the sixth terminal 281 of the third switching unit 221 and the sixth terminal 282 of the third switching unit 222 via the connection line 37.

The output unit 161 is connected to the fourth terminal 261 of the third switching unit 221. The output unit 162 is connected to the fourth terminal 262 of the second switching unit 212. The output unit 163 is connected to the fourth terminal 263 of the second switching unit 213. In the following description, the output unit 161 and the output unit 162 and the output unit 163 may be collectively referred to as the output unit 16.

Here, the electrical load 131 is connected to the output unit 161. The electrical load 132 is connected to the output unit 162, and the power generation device 12 is connected to the output unit 163. In the following description, the electrical load 131 and the electrical load 132 may be collectively referred to as the electrical load 13.

The arithmetic control unit 32 is, for example, an arithmetic element composed of a CPU, and controls the operation of each unit constituting the power failure distribution board 19. Further, the arithmetic control unit 32 constantly monitors the voltage V1 of the commercial power supply 11, the connection line 41, the connection line 42, and the voltage V2 of the connection line 43. The arithmetic control unit 32 controls the cutoff state or connection state of the first switching unit 20, the second switching unit 21, and the second switching unit 21 based on the monitored voltage V1 and voltage V2, and operates the power generation device 12. It is in control.

The above is the description of the circuit configuration of the power failure distribution board 19.

In the first state, the commercial power supply 11 is in a power failure and the power generation device 12 is stopped, and power is not supplied from the commercial power supply 11 to the electric load 131 and the electric load 132. Further, since the power generation device 12 is in the stopped state, power is not supplied from the power generation device 12 to the electric load 131 and the electric load 132.

Therefore, the first switching unit 20, the second switching unit 21, and the third switching unit 22 are all shut off based on the instruction of the arithmetic control unit 32.

FIG. 3 is a circuit diagram showing the operation of the power failure distribution board 19 in the second state in which the commercial power supply 11 is in a power failure and the power generation device 12 is generating power. When the power supply from the commercial power source 11 to the power supply system 10 is interrupted due to the influence of a disaster or the like, the arithmetic control unit 32 puts the power supply system 10 in the second state. The arithmetic control unit 32 sets the power failure distribution board 19 as the second state based on the fact that the voltage V1 becomes zero or becomes extremely low.

In the second state, the arithmetic control unit 32 puts the first switching unit 20 in the cutoff state, the second switching unit 21 in the conductive state, and the third switching unit 22 in the conductive state. Further, the arithmetic control unit 32 starts the power generation device 12 and starts power generation based on the fact that the voltage V1 becomes zero or becomes extremely low.

Here, the power generation device 12 may be connected to the output unit 163 at all times, or the user may connect to the power generation device 12 and the output unit 163 when the commercial power supply 11 loses power. Further, the user may start the power generation device 12.

In the second state, the power generation device 12 is generating, for example, 100 V of AC power. The generated electric power reaches the third switching unit 223 via the output unit 163, the second switching unit 213, the connecting line 40, and the connecting line 43.

The current supplied to the third switching unit 223 flows into the third switching unit 221 and the third switching unit 22 via the connection line 37.

The current flowing into the third switching unit 221 is supplied to the electric load 131 via the connecting line 41, the connecting line 38, the second switching unit 211, and the output unit 161.

The current flowing into the third switching unit 222 is supplied to the electric load 132 via the connecting line 42, the connecting line 39, the second switching unit 212, and the output unit 162.

Here, since the first switching unit 20 is in the cutoff state, the electric power generated by the power generation device 12 is not supplied to the distribution board 31 side.

By doing so, when the commercial power source 11 loses power, electric power can be supplied from the power generation device 12 to the electric load 131 and the electric load 132. Therefore, the user can use the electric load 131 and the electric load 132 even during a power failure.

Further, the power generation device 12 can be connected to the power supply system 10 by a simple operation of inserting the plug of the power generation device 12 into the output unit 163 which is an outlet. Therefore, a dedicated connecting device for connecting the power generation device 12 to the power supply system 10 is unnecessary. Further, the output unit 163 is an outlet arranged indoors, and the user does not need to go outdoors to connect the power generation device 12 to the power supply system 10.

Here, a priority is set for the electric load 13, and when a power failure occurs, power is supplied from the power generation device 12 to the electric load 13 having a high priority based on the instruction of the arithmetic control unit 32. However, power is not supplied to the electric load 13 having a low priority.

For example, assume that the electrical load 131 is a luminaire, the electrical load 132 is a dryer, and the electrical load 131 has a higher priority than the electrical load 132. In such a case, the arithmetic control unit 32, for example, puts the third switching unit 221 in a conductive state and puts the third switching unit 222 in a cutoff state, supplies electric power to the electric load 131, and makes an electric load. No power is supplied to 132. By doing so, by supplying electric power to the electric load 131 which is a lighting fixture, the user can safely act indoors in the event of a power failure. Further, by not supplying electric power to the electric load 132 which is a dryer, the limited output of the power generation device 12 can be effectively used.

FIG. 4 is a circuit diagram showing the operation of the power failure distribution board 19 in the third state when the power is restored and the power generation device 12 is generating power. This state is a state within a predetermined time immediately after the power is restored.

The continuity cutoff status of the first switching unit 20, the second switching unit 21, and the third switching unit 22 in the third state is the same as in the second state described above. That is, based on the instruction of the arithmetic control unit 32, the first switching unit 20 is in the cutoff state, the second switching unit 21 is in the conductive state, and the third switching unit 22 is in the conductive state. Therefore, similarly to the second state, the electric power generated by the power generation device 12 can be supplied to the electric load 131 and the electric load 132 via the third switching unit 22 and the second switching unit 21.

In this way, within a predetermined time immediately after the power is restored, power is not supplied from the commercial power source 11 to the power supply system 10 until, for example, the power generation device 12 is stopped, and the power generated by the power generation device 12 is transferred to the electric load 13. By supplying it, it is possible to prevent excessive power from being supplied to the electric load 13 from both the commercial power source 11 and the power generation device 12. Here, the arithmetic control unit 32 stops the power generation device 12 when the voltage V1 is, for example, about 100V and the voltage V2 (voltage of the connection line 41, the connection line 42, or the connection line 43) is, for example, about 100V. It can also be set to.

FIG. 5 is a circuit diagram showing the operation of the power failure distribution board 19 in the fourth state when the power is restored and the power generation device 12 is stopped.

In the fourth state, the arithmetic control unit 32 puts the first switching unit 20 in the conductive state, the second switching unit 21 in the conductive state, and the third switching unit 22 in the cutoff state. Further, the arithmetic control unit 32 stops the power generation device 12. The arithmetic control unit 32 changes the state of the power failure distribution board 19 from the third state to the fourth state after a predetermined time has elapsed after the voltage V1 becomes about 100V.

Specifically, in the fourth state, a part of the electric power supplied from the commercial power source 11 includes the main breaker 33, the breaker 341, the first switching unit 201, the connection line 38, the second switching unit 211, and the output unit 161. It is supplied to the electrical load 131 via. Further, the other part of the electric power supplied from the commercial power source 11 is electrically loaded via the main breaker 33, the breaker 342, the first switching unit 202, the connection line 39, the second switching unit 212, and the output unit 162. It is supplied to 132.

Further, the plug of the power generation device 12 can be removed from the output unit 163, and another electric load 13 can be inserted into the output unit 163. In this case, electric power is supplied to an electric load 13 (not shown here) via the main breaker 33, the breaker 343, the first switching unit 203, the connecting line 40, the second switching unit 213, and the output unit 163.

The above is a description of the circuit configuration and operation of the power supply system 10 and the power failure distribution board 19.

According to the present embodiment described above, the following main effects can be obtained.

According to the power supply system 10 of the present embodiment, when a power failure occurs, the power generation device 12 is connected to any of the output units 16, and the other output units are connected via the output unit 16 and the in-house wiring 15. By supplying electric power to the electric load 13 via 16, it is not necessary to install a generator outdoors in the event of a disaster or the like. Further, in an emergency, since the emergency power is supplied from one of the output units 16 to the other output unit 16 via the existing in-house wiring 15, it is not necessary to route the emergency wiring indoors 14.

Further, in the case of a power failure state in which the power supply from the commercial power source 11 is interrupted, emergency power is supplied from one of the output units 16 to the other output unit 16 via the third switching unit 22. Therefore, since the emergency power is supplied by the switching operation of each switching unit, it is not necessary to dispose the emergency power outdoors, and it is not necessary to lay the emergency wiring indoors 14, so that the configuration is very simple. Power can be secured.

Further, by setting the first switching unit 20, the second switching unit 21, and the third switching unit 22 to the connected state or the cutoff state according to each state of the first state to the second state, the output unit 16 is set in the event of a power failure. And, electric power can be satisfactorily supplied to the electric load 13 via the home wiring 15.

Further, by supplying electric power from the power generation device 12 to the electric load 13 having a high priority and not supplying electric power to the electric load 13 having a low priority, the limited electric power at the time of a power failure can be effectively utilized. be able to.

Although the embodiments of the present invention have been described above, the present invention is not limited to this, and changes can be made without departing from the gist of the present invention. In addition, the above-mentioned forms can be combined with each other.

10 Power supply system 11 Commercial power supply 12 Power generation device 13 Electrical load 131 Electrical load 132 Electrical load 14 Indoor 15 Home wiring 16 Output unit 161 Output unit 162 Output unit 163 Output unit 19 Power failure distribution board 20 First switching unit 201 1st switching unit 202 1st switching unit 203 1st switching unit 21 2nd switching unit 211 2nd switching unit 212 2nd switching unit 213 2nd switching unit 22 3rd switching unit 221 3rd switching unit 222 3rd switching unit 223 3rd switching unit 231 1st terminal 232 1st terminal 233 1st terminal 241 2nd terminal 242 2nd terminal 243 2nd terminal 251 3rd terminal 252 3rd terminal 253 3rd terminal 261 4th terminal 262 4th terminal 263 4th terminal 271 5th terminal 272 5th terminal 273 5th terminal 281 6th terminal 282 6th terminal 283 6th terminal 29 Electric wire 30 Residential 31 Distribution board 32 Calculation control unit 33 Main breaker 341 Breaker 342 Breaker 343 Breaker 37 Connection Line 38 Connection line 39 Connection line 40 Connection line 41 Connection line 42 Connection line 43 Connection line V1 Voltage V2 Voltage

Claims (4)

It is a power supply system that supplies power to the electrical load from the power generation device when the commercial power supply fails.
When the power failure does not occur, the electric power from the commercial power source is supplied to the electric load via the output unit via the in-house wiring laid indoors.
From the side of the commercial power supply, a distribution board, a distribution board for power failure, and the output unit are provided.
The distribution board has a breaker and
The power outage distribution board
A plurality of first switching units, a plurality of second switching units, and a plurality of third switching units are provided.
Each of the plurality of first switching portions has a first terminal and a second terminal.
Each of the plurality of second switching units has a third terminal and a fourth terminal.
Each of the plurality of third switching units has a fifth terminal and a sixth terminal.
The first terminal of the first switching unit is connected to the side of the commercial power supply, and the second terminal of the first switching unit is connected to the third terminal of the second switching unit.
The fourth terminal of the second switching unit is connected to the output unit and is connected to the output unit.
The fifth terminal of the third switching unit is connected to a connection line connecting the second terminal of the first switching unit and the third terminal of the second switching unit.
The sixth terminals of the third switching unit are connected to each other.
When power is supplied from the commercial power source to the output unit, the first switching unit is in a connected state, the second switching unit is in a connected state, and the third switching unit is in a cutoff state.
When the commercial power supply fails, the first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state. ,
The output unit includes a first output unit and a second output unit.
When the power failure occurs, the power generation device is connected to the first output unit, via the home wiring, the power failure distribution board and the second output unit, and the breaker of the distribution board. A power supply system characterized in that power is supplied from the power generation device to the electric load without going through the power supply system. It is a power outage distribution board installed between the commercial power supply and the output unit.
A plurality of first switching units, a plurality of second switching units, and a plurality of third switching units are provided.
Each of the plurality of first switching portions has a first terminal and a second terminal.
Each of the plurality of second switching units has a third terminal and a fourth terminal.
Each of the plurality of third switching units has a fifth terminal and a sixth terminal.
The first terminal of the first switching unit is connected to the side of the commercial power supply, and the second terminal of the first switching unit is connected to the third terminal of the second switching unit.
The fourth terminal of the second switching unit is connected to the output unit and is connected to the output unit.
The fifth terminal of the third switching unit is connected to a connection line connecting the second terminal of the first switching unit and the third terminal of the second switching unit.
The sixth terminals of the third switching unit are connected to each other.
When power is supplied from the commercial power source to the output unit, the first switching unit is in a connected state, the second switching unit is in a connected state, and the third switching unit is in a cutoff state.
When the commercial power supply fails, the first switching unit is in a cutoff state, the second switching unit is in a connected state, and the third switching unit is in a connected state. Board. The first state in which the commercial power supply is out of power and the power generation device is stopped,
The second state in which the commercial power source is out of power and the power generation device is generating power,
The third state in which the commercial power source is restored and the power generation device is generating power,
It is possible to take a fourth state in which the commercial power source is restored and the power generation device is stopped.
In the first state, the first switching unit is in a cutoff state, the second switching part is in a cutoff state, and the third switching part is in a cutoff state.
In the second state, the first switching unit is in the cutoff state, the second switching unit is in the connected state, and the third switching unit is in the connected state.
In the third state, the first switching unit is in the cutoff state, the second switching unit is in the connected state, and the third switching unit is in the connected state.
The power failure according to claim 2, wherein in the fourth state, the first switching unit is in a connected state, the second switching unit is in a connected state, and the third switching unit is in a cutoff state. Distribution board. Prioritize electrical loads and
When the power failure occurs, power is supplied from the power generation device to the electric load having a high priority, and power is not supplied to the electric load having a low priority. The distribution board for power failure according to claim 3.

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