JP2014033510A - Indoor power distribution system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply power from a secondary battery to required indoor AC apparatuses (AC load, switch, outlet, and the like) using AC when a commercial power supply stops.SOLUTION: Output of a power supply unit 200 changes over from power from a commercial power supply to power from a secondary battery 201 converted to AC, when the commercial power supply stops. When the commercial power supply stops, the power from the secondary battery 201 converted to AC is also supplied to a power supply path 304 of each of uninterruptible apparatus power distribution units 300A connected in series in a chain form to the power supply unit 200, and AC apparatuses 301 to 303 branch-connected to the power supply path 304. Thereby, the power from the secondary battery 201 can be supplied using AC to not apparatuses on an indoor room basis but all of the required AC apparatuses 301 to 303, when the commercial power supply stops.

Description

  The present invention relates to a commercial power distribution system indoors, such as a general house or an apartment house, and more particularly to an indoor power distribution system that responds to a power failure by switching the power source to a secondary battery when the commercial power source fails.

  Conventionally, various proposals have been made for an uninterruptible power supply that switches a power source to a secondary battery in the event of a power failure of a commercial power source. Among them, even if the commercial power supply is not momentarily cut off due to a power failure, it is proposed that if a problem occurs in the commercial power supply, the power supply is switched to a secondary battery and then converted from direct current to alternating current. (For example, Patent Document 1).

  On the other hand, as an indoor power distribution system that responds to a power failure of a commercial power source, DC power converted from AC by an AC / DC converter is supplied to an indoor DC load when supplying commercial power, and a secondary battery and a storage battery for backup are used. There has been proposed a battery that is supplied and charged. In this system, at the time of a power failure of a commercial power supply, power is switched to a secondary battery to supply power to each DC load, and power is continuously supplied from a backup storage battery to a desired DC load. (For example, patent document 2).

JP-A-7-59274 JP 2011-83090 A

  As described above, there is a power supply device that converts the power of the secondary battery into alternating current and supplies it to the load when a commercial power supply fails. However, there is no distribution system that supplies AC power to a load or a distribution device (switch, outlet, etc.) instead of the commercial power source when the commercial power source is interrupted as an indoor power distribution system.

  In general, indoor electrical wiring is arranged in a room unit and connected to a distribution board breaker, etc., so the wiring below the distribution panel is parallel in the room unit and used in the event of a power failure. It is not a circuit configuration that can supply backup power from an uninterruptible power supply as a whole, not for each room, for a load that needs to be performed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to exchange power from a secondary battery with an AC device (AC load, switch, outlet, etc.) that is required indoors when a commercial power supply is interrupted. It is to provide an indoor power distribution system that can be supplied.

In order to achieve the above object, an indoor power distribution system according to the present invention described in claim 1 includes:
An indoor power distribution system that converts power from a secondary battery charged by a commercial power source during a non-power failure to alternating current and supplies it to indoor AC equipment instead of the power from the commercial power source during a power failure ,
A power supply unit that switches the output to the power of the secondary battery converted from the power of the commercial power supply to an alternating current during a power failure of the commercial power supply;
One or a plurality of uninterruptible equipment distribution units connected in series with the power supply unit in units of units, each unit branch-connecting the AC equipment from a power supply path,
It is characterized by providing.

  According to the indoor power distribution system of the present invention as set forth in claim 1, when the commercial power supply is interrupted, the output of the power supply unit is switched from the power of the commercial power supply to the power converted from the alternating current of the secondary battery. And the power supply path of each uninterruptible power distribution unit connected in series to the power supply unit, and the AC equipment branched and connected to this, also converted into AC from the secondary battery at the time of commercial power failure Power is supplied.

  Therefore, the power from the secondary battery can be supplied in an alternating current when the commercial power supply is interrupted to the entire required AC equipment (AC load, switch, outlet, etc.) instead of indoor units.

  In addition, the capacity of the secondary battery can be easily changed by replacing the power supply unit, and AC devices that supply power converted into AC from the secondary battery at the time of a power failure of the commercial power supply Regardless of the difference, it can be grouped in units of uninterruptible equipment distribution units, for example, a backup power supply system according to the request of the owner of the house can be configured.

  According to a second aspect of the present invention, there is provided an indoor power distribution system according to the present invention, wherein the indoor power distribution system according to the first aspect of the present invention is connected in series in units between a commercial power source and the power supply unit. Each unit further includes one or a plurality of power failure device distribution units in which indoor AC devices that do not supply power converted into alternating current from the secondary battery at the time of a power failure of the commercial power source are branched and connected from the power supply path. Features.

  According to the indoor power distribution system of the present invention described in claim 2, in the indoor power distribution system of the present invention described in claim 1, the AC of the power interruption device distribution unit connected in series to the input side (commercial power supply side) of the power supply unit The device is not supplied with the electric power converted into the alternating current from the secondary battery when the commercial power supply is interrupted.

  Therefore, if a unit in which AC equipment is branched from the power supply path is connected in series to the input side (commercial power supply side) of the power supply unit, it becomes a power failure equipment distribution unit, and if it is connected in series to the output side of the power supply unit, uninterruptible equipment distribution Become a unit. Therefore, by appropriately setting the arrangement of the power supply unit on the indoor wiring, it is possible to appropriately supply the power converted into the alternating current from the secondary battery to the alternating current device used even when the commercial power supply is interrupted.

  Furthermore, the indoor power distribution system of the present invention described in claim 3 is the indoor power distribution system of the present invention described in claim 1 or 2, wherein the input side of the power supply unit is connected to a commercial power supply via a circuit breaker. It is characterized by.

  According to the indoor power distribution system of the present invention described in claim 3, in the indoor power distribution system of the present invention described in claim 1 or 2, each unit connected in series to the output side of the power supply unit in a chain unit. The amount of power used by the AC device branched from the power supply path of the power failure device distribution unit can be allowed up to the capacity of the circuit breaker to which the input side of the power supply unit is connected when the commercial power source is not powered.

  Further, the indoor power distribution system of the present invention described in claim 4 is the indoor power distribution system of the present invention described in claim 1, 2, or 3, wherein the input and output of the power supply unit are connected to each other by a plug and an outlet. It is electrically connected to.

  According to the indoor power distribution system of the present invention as set forth in claim 4, in the indoor power distribution system of the present invention as set forth in claim 1, 2, or 3, the power supply paths are usually connected in series by a plug and an outlet. Two units are connected to the input side of the power supply unit and the other is connected to the output side at the time of a power failure of the commercial power supply. The unit connected to the output side is converted into AC power from the secondary battery. It can be an uninterruptible power distribution unit to be supplied.

  ADVANTAGE OF THE INVENTION According to this invention, the electric power from a secondary battery can be supplied with alternating current with respect to indoor AC apparatus (AC load, a switch, an outlet, etc.) required at the time of a power failure of a commercial power source.

It is explanatory drawing which shows the basic composition of the indoor power distribution system of this invention. It is explanatory drawing of the indoor power distribution system which concerns on 1st Embodiment of this invention which applied the basic structure of FIG. It is explanatory drawing of the indoor power distribution system which concerns on 2nd Embodiment of this invention which applied the basic structure of FIG. It is explanatory drawing of the indoor power distribution system which concerns on 3rd Embodiment of this invention which applied the basic structure of FIG. It is explanatory drawing which shows another example of the supply source (secondary battery) which supplies electric power at the time of a power failure of a commercial power supply with respect to the indoor power distribution system which concerns on 1st Embodiment of FIG.

  The present invention will be described below with reference to the drawings. First, the basic configuration of the indoor power distribution system of the present invention will be described with reference to the explanatory diagram of FIG.

  As shown in FIG. 1, the indoor power distribution system 1 of the present invention is constructed on the downstream side of each circuit breaker (breaker) 101 of a distribution board 100 that distributes power from a commercial power source (not shown). The indoor power distribution system 1 includes at least one power supply unit 200 and one uninterruptible device distribution unit 300A that supplies power even when a commercial power supply fails.

  The power supply unit 200 is between the power of the commercial power inputted through the circuit breaker 101 and the power from the secondary battery 201 converted into alternating current by the control device 202, with respect to the power output to the uninterruptible power distribution unit 300A. It is to switch with. When the comparator 203 detects that the voltage obtained by rectifying the commercial power supply has fallen to a level at which it can be determined as a power failure, the output to the relay coil of the relay 204 is inverted, so that the output power is It is switched to the electric power after AC conversion from the secondary battery 201.

  The uninterruptible power distribution unit 300A includes a power supply path 304 that is connected in series to the output side of the power supply unit 200, and wiring to a plurality of AC devices 301 to 303 that are branched from the power supply path 304. It is comprised including. In FIG. 1, as the AC devices 301 to 303, an illumination switch 301, an illumination 302, and an outlet 303 installed on a wall surface are illustrated.

  The terminal of the power supply path 304 can be connected to other AC devices 301 to 303 and the same unit as the uninterruptible device power distribution unit 300A via the connector 401 (in FIG. 1, the case where the outlet 303 is connected). Shown).

  In particular, by providing an outlet 303 connected to the power supply path 304 of the uninterruptible power distribution unit 300A, it can be operated as an emergency outlet to which power is supplied even when a commercial power supply fails. For example, devices related to the lifeline of information collection systems such as wireless LAN modems and routers for the Internet (none of which are shown), television signal boosters (not shown), personal computers (not shown), etc. It is convenient to connect to an outlet 303 as a power outlet. That is, even when a commercial power supply is interrupted, it is possible to continue to access the Internet and watch television broadcasts and collect disaster information without any trouble.

  Next, an indoor power distribution system according to an embodiment of the present invention to which the basic configuration of FIG. 1 is applied will be described with reference to FIGS.

  First, in the first to third embodiments shown in the explanatory diagrams of FIGS. 2 to 4, the input and output of the power supply unit 200 are connected to a connection partner using plugs 801 and 802 and an outlet 303.

  And in 1st Embodiment shown in explanatory drawing of FIG. 2, the power supply unit 200 is interposed between the circuit breaker 101 and the uninterruptible appliance power distribution unit 300A1. In this case, while the commercial power supply is not out of power, the plug 802 stored in the plug storage box 805 connected via the connector 401 to the starting end side of the power supply path 304 of the uninterruptible power distribution unit 300A1 and the input of the power supply unit 200 Both of the plugs 801 on the side are inserted into an outlet 303 connected to the circuit breaker 101. As a result, power from the commercial power supply is supplied to the AC devices 301 to 303 of the uninterruptible power distribution unit 300A1, and is rectified into direct current by the rectifier of the control device 202 to charge the secondary battery 201 of the power supply unit 200. Supply for.

  On the other hand, when the commercial power supply fails, the plug 802 pulled out from the outlet 303 connected to the circuit breaker 101 is inserted into an outlet on the output side of the power supply unit 200 (not shown), and the input side plug of the power supply unit 200 is inserted. 801 is pulled out from the outlet 303 on the circuit breaker 101 side. Thereby, the electric power from the secondary battery 201 converted into alternating current by the control apparatus 202 is supplied to each alternating current equipment 301-303 of the uninterruptible equipment power distribution unit 300A1.

  Moreover, in 2nd Embodiment shown in explanatory drawing of FIG. 3, uninterruptible equipment power distribution unit 300A2 is chained in series via the power supply unit 200 at the terminal of the existing power failure equipment power distribution unit 300X connected in series with the circuit breaker 101. Connected.

  The power failure device distribution unit 300X is basically similar to the uninterruptible device power distribution unit 300A1 in FIG. 2 and is connected to the power supply path 304 and a plurality of AC devices 301 to 303 branched from the power supply route 304. And wiring. The same applies to the uninterruptible power distribution unit 300A2. However, the power failure equipment distribution unit 300X does not have the connector 401 on the start end side and the end end side of the power supply path 304. Therefore, the plug 801 on the input side of the power supply unit 200 is inserted into the outlet 303 of the power failure device power distribution unit 300X, and supplied with power for charging.

  In this case, while the commercial power supply is not out of power, the plug 802 stored in the plug storage box 805 connected to the start end side of the power supply path 304 of the uninterruptible power distribution unit 300A2 via the connector 401, and the input of the power supply unit 200 Both of the plugs 801 on the side are inserted into an outlet 303 connected to the power outage device power distribution unit 300X. As a result, power from the commercial power supply is supplied to the AC devices 301 to 303 of the uninterruptible device distribution unit 300A2 via the outlet 303 of the power failure device distribution unit 300X, and is rectified to DC by the rectifier of the control device 202. The secondary battery 201 of the power supply unit 200 is supplied for charging.

  On the other hand, when the commercial power supply fails, the plug 802 pulled out from the outlet 303 connected to the power interruption device distribution unit 300X is inserted into an output outlet (not shown) of the power supply unit 200, and the input side of the power supply unit 200 is connected. The plug 801 is pulled out from the outlet 303 of the power failure device power distribution unit 300X. Thereby, the electric power from the secondary battery 201 converted into alternating current by the control apparatus 202 is supplied to each alternating current equipment 301-303 of the uninterruptible equipment power distribution unit 300A2.

  Furthermore, in 3rd Embodiment shown in explanatory drawing of FIG. 4, the input of the power supply unit 200 is connected to the termination | terminus side of the electric power supply path | route 304 of uninterruptible equipment power distribution unit 300A3.

  The uninterruptible device distribution unit 300A3 is basically the same as the uninterruptible device distribution unit 300A1 in FIG. 2, to the power supply path 304 and a plurality of AC devices 301 to 303 that are branched from the power supply path 304. Wiring. However, the uninterruptible power distribution unit 300A3 has the connector 401 only on the start end side of the power supply path 304 and does not have the connector 401 on the end side. Therefore, the plug 801 on the input side of the power supply unit 200 is inserted into the outlet 303 connected to the terminal end side of the uninterruptible device power distribution unit 300A3 and is supplied with power for charging.

  In this case, while the commercial power source is not out of power, the plug 802 housed in the plug housing box 805 connected to the outlet 303 and the input-side plug 801 of the power supply unit 200 are both of the uninterruptible power distribution unit 300A3. The power supply path 304 is plugged into an outlet 303 connected to the terminal side. As a result, power from the commercial power supply is supplied to the AC devices 301 to 303 of the uninterruptible power distribution unit 300A3, and is rectified to direct current by the rectifier of the control device 202 to charge the secondary battery 201 of the power supply unit 200. Supply for.

  On the other hand, when the commercial power supply fails, the plug 802 pulled out from the outlet 303 connected to the uninterruptible power distribution unit 300A3 is inserted into the trace (not shown) on the output side of the power supply unit 200, and the power supply unit 200 Is pulled out from the outlet 303 of the uninterruptible power distribution unit 300A3. As a result, the power from the secondary battery 201 converted into alternating current by the control device 202 is supplied to the outlet 303 connected to the plug storage box 805.

  In the indoor power distribution system 1 of each embodiment described above, at the time of a power failure of the commercial power supply, the output of the power supply unit 200 is switched to the power converted from the power of the commercial power supply to the alternating current of the secondary battery 201. The power supply path 304 of each uninterruptible device distribution unit 300A1 to 300A3 connected in series to the power supply unit 200 and the AC devices 301 to 303 branched and connected thereto are also connected to the power supply path 304 when the commercial power supply is interrupted. The electric power converted into the alternating current from the secondary battery 201 is supplied.

  Therefore, the electric power from the secondary battery 201 can be supplied to the whole of the necessary AC devices 301 to 303 instead of indoor units at the time of a power failure of the commercial power supply.

  Note that the connection between the input and output of the power supply unit 200 and the other party may not be performed by the plugs 801 and 802 and the outlet 303 as described in the first to third embodiments. However, if the configuration is such that the input and output of the power supply unit 200 are connected to the other party by the plugs 801 and 802 and the outlet 303 as in each embodiment, the user can insert and remove the plugs 801 and 802 so that the commercial power During the power failure, the output of the power supply unit 200 is easily switched from the power of the commercial power supply to the power converted into the alternating current of the secondary battery 201. This advantageously eliminates the need for a configuration for automatically switching the output of the power supply unit 200 when a commercial power supply fails.

  Moreover, if the connection with the output of the power supply unit 200 is a plug 802, it is possible to connect to the uninterruptible power distribution units 300A1 to 300A3 using various devices as a power source in the event of a power failure of the commercial power supply. For example, as shown in the explanatory diagram of FIG. 5, the battery 501 of the vehicle 500 is used as an emergency temporary power source at the time of a power failure of the commercial power source, and is converted into alternating current by the inverter 502 and is converted into the uninterruptible power distribution units 300A1 to 300A3 Can be supplied. In particular, when the vehicle 500 is an electric vehicle (EV) or a hybrid vehicle (HEV), the battery 501 has a large capacity, which is advantageous.

  Furthermore, when vehicle 500 is a plug-in hybrid vehicle (PHV), plug 802 can be connected to a plug-in connector (not shown) of vehicle 500 via an adapter (not shown), and inverter 502 can be connected. This is advantageous because it does not need to be used separately. Even when the emergency generator 600 is used as a power source in the event of a power failure in place of the battery 501, the plug 802 can be directly connected, which is advantageous.

  In addition, if the plug 802 is used, the power supply source at the time of a power failure of the commercial power supply can be switched by changing the connection destination of the plug 802, so even if one power supply exhausts power or cannot supply power. Thus, it is possible to realize an operation in which the power supply is continuously switched to another power source.

  In each embodiment, the indoor power distribution system 1 having one uninterruptible power distribution unit 300A1 to 300A3 has been described as an example. However, a plurality of uninterruptible power distribution units 300A are connected in series to the output of the power supply unit 200. The indoor power distribution system 1 may be configured by connecting them. Furthermore, it is needless to say that the number of power failure equipment distribution units 300X connected in series to the input of the power supply unit 200 is not limited to one as in the second embodiment, and may be plural.

  Furthermore, by configuring the indoor power distribution system 1 configured as in the above-described embodiments, the capacity of the secondary battery 201 can be easily changed by replacing the power supply unit 200. Further, it is easy depending on whether the AC devices 301 to 303 to be supplied with the electric power converted into AC from the secondary battery 201 are arranged on the input side or the output side of the power supply unit 200 when the commercial power supply is interrupted. Can be set.

  That is, by connecting the power supply unit 200 described above in series to the distribution board 100 side relative to the AC devices 301 to 303 that are to be used during a power failure, there is no unit (including existing ones) connected to the output side of the power supply unit 200. It can be operated as a power failure device power distribution unit 300A. Moreover, if it is a stage before constructing a house, the alternating current equipment 301-303 which can be used also at the time of a power failure of a commercial power source can be set correspondingly to the owner's request.

  Further, as in each of the above-described embodiments, the indoor power distribution system 1 is configured on the downstream side of the circuit breaker (breaker) 101, so that the AC devices 301 to 303 downstream of the circuit breaker 101 can be connected to the AC power supplies 301 to 303 downstream of the circuit breaker 101. The power can be consumed up to the rated capacity of the circuit breaker 101.

  INDUSTRIAL APPLICABILITY The present invention is extremely useful when used to supply electric power from a secondary battery to an AC device (AC load, switch, outlet, etc.) required indoors at the time of a power failure of a commercial power source.

DESCRIPTION OF SYMBOLS 1 Indoor power distribution system 100 Distribution board 101 Circuit breaker 200 Power supply unit 201 Secondary battery 202 Control apparatus 203 Comparator 204 Relay 300A, 300A1-300A3 Uninterruptible equipment power distribution unit 300X Power outage equipment power distribution unit 301 Switch (AC equipment)
302 Lighting (AC equipment)
303 Outlet (AC equipment)
304 Power supply path 401 Connector 801, 802 Plug 805 Plug storage box

Claims (4)

An indoor power distribution system that converts power from a secondary battery charged by a commercial power source during a non-power failure to alternating current and supplies it to indoor AC equipment instead of the power from the commercial power source during a power failure ,
A power supply unit that switches the output to the power of the secondary battery converted from the power of the commercial power supply to an alternating current during a power failure of the commercial power supply;
One or a plurality of uninterruptible equipment distribution units connected in series with the power supply unit in units of units, each unit branch-connecting the AC equipment from a power supply path,
An indoor power distribution system comprising:   An indoor AC device that is connected in series in units between a commercial power supply and the power supply unit, and each unit does not supply power converted into AC from the secondary battery at the time of a power failure of the commercial power supply. The indoor power distribution system according to claim 1, further comprising one or a plurality of power failure device power distribution units that are branch-connected from the power supply path.   The indoor power distribution system according to claim 1 or 2, wherein an input side of the power supply unit is connected to a commercial power supply via a circuit breaker.   The indoor power distribution system according to claim 1, 2 or 3, wherein the input and output of the power supply unit are electrically connected to respective counterparts by plugs and outlets.

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