JPH11178241A - Power supply device for power failure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely and surely secure emergency power from the battery, etc., of an electric automobile without providing any special equipment to the automobile by supplying supplied power after converting the power into such power that can operate each electric appliance when a power failure occurs. SOLUTION: The battery 22 of an electric automobile is always charged with DC power supplied from commercial power supply 23 through an AC/DC conversion adapter 24 for charging. When a power failure detecting device 25 detects a power failure, the change-over contact of the switch of a cable-side connector component is switched and the contact is closed. Consequently, the DC power stored in the battery 22 is supplied to a DC/AC converter 26 and supplied to each electric appliance of a house after the DC power is converted into 100-V AC power through a DC/AC converter 26. Therefore, emergency power can be secured safely and surely from the battery 22 without providing any special equipment to the electric automobile.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power outage which can supply an emergency power without a special facility such as a private power generator at the time of a power outage and without any special maintenance or inspection work. The present invention relates to a supply device.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a block diagram illustrating a conventional power failure power supply device using a car disclosed in Japanese Unexamined Patent Publication (Kokai) No. H10-206. In the figure, 1 is an automobile, 2 is an engine starting device of the automobile 1, and 3 is an automobile 1
, An engine 4, a generator 5, a connector for extracting power supplied from the generator 4 to the outside of the vehicle, 6 a cable having the connector 5 at one end, and 8 a pole attached to a utility pole 7. Upper transformer, 9 is a power failure monitoring device for monitoring the occurrence of a power failure, 13 is a vehicle control device, 14 is D
The C / AC inverter 12 is, for example, an electrical device that is generally used at home.

Next, the operation will be described. In this power failure power supply device, the power failure monitoring device 9 constantly monitors the power supplied from the pole transformer 8 to the home and, when a power failure is detected, notifies the vehicle control device 13 of the occurrence of the power failure. When receiving the power failure information, the vehicle control device 13
Sends an engine start command to On the automobile 1 side, the engine starting device 2 receives the engine starting command and starts the engine 3. The engine 3 drives a generator 4 mounted to supply electric power to the vehicle, and the generator 4 converts mechanical energy due to rotation of the engine 3 into electric energy. The power generated by this is
The power is supplied from the automobile 1 to the emergency power line in the home via the automobile control device 13 via the connector 5 and the cable 6 outside the vehicle.

[0004] The engine starting device 2 can simultaneously control the output according to the load of the engine.

[0005]

Since the conventional power supply device at the time of a power failure is constructed as described above, special devices such as the vehicle control device 13 and the engine starting device 2 are required. There were problems such as the necessity of special equipment such as the control device 13, the engine starting device 2, and the connector 5 for taking out the electric power supplied from the generator 4 to the outside of the vehicle.

When the vehicle is stopped, it is necessary to route the emergency power supply cable 6 and connect it to the vehicle 1.
There were problems such as the need to remove the cable 6.

In addition, the reason why the engine of the automobile is automatically started and the electric power is generated automatically by an unmanned person is considered when the automobile is placed in a closed garage or when the clutch is not in a neutral state. However, when the engine is started due to malfunction, it is dangerous and there is a problem that safety considerations are lacking.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and secures emergency power safely and reliably at the time of a power outage from a battery of the electric vehicle without providing special equipment to the electric vehicle. It is an object to obtain a power supply device at the time of a power failure.

[0009]

A power supply device at the time of a power failure according to the present invention includes a power failure detection device that detects a power failure, and an electric vehicle whose charging is stopped due to the occurrence of the power failure when the power failure detection device detects the power failure. Energy source switching means for switching the battery to an energy supply source for each indoor or outdoor electrical device that needs to be used during a power outage, and the energy supply source switched by the energy supply source switching means. Power supply means for converting the supplied power into power operable by each of the electric devices at the time of the power failure.

[0010] The power supply device at the time of a power failure according to the present invention includes a battery connected to a battery of an electric vehicle, which is connected to each electrode terminal of the battery and a power conversion supply means in an existing connector for charging. A power supply cable for performing power supply, and when a power failure detection device detects a power failure, a switch provided in an energy supply source switching unit switches the energy stored in the battery to the power conversion supply via the power supply cable. It can be supplied to the means.

[0011] The power supply device at the time of a power failure according to the present invention, when a power failure occurs, a circuit breaker for interrupting the wiring on the common connection side of each indoor or outdoor electrical device that needs to be used during the power failure for each electrical device. It is provided with.

A power supply device for power failure during power outage according to the present invention includes: priority setting means for setting priorities for respective electric devices in advance; and power supply during power failure in accordance with the priorities set by the priority setting means. And an electric power supply control device for supplying electric power to the determined electric equipment.

[0013] In the power failure power supply device according to the present invention, the energy remaining amount detected by the battery remaining amount detecting means for detecting the remaining energy amount stored in the battery of the electric vehicle and the priority order setting means are set. Based on the priority order, an electric device to be supplied with power in the event of a power failure is determined, and power is supplied to the determined electric device.

[0014] A power supply device at the time of a power failure according to the present invention comprises:
A storage battery that is charged by night power and supplies power to each electric device at the time of a power outage, and power supplied from an energy supply source, which is a battery of an electric vehicle switched by an energy supply source switching unit, by the solar cell panel The power conversion and supply means converts the supplied power and the power supplied by the storage battery into power that can be operated by each of the electric devices at the time of a power outage, and supplies the electric power to each of the electric devices.

According to the present invention, there is provided a power supply during power outage, comprising: a solar panel power generation detecting means for detecting a power generation of a solar panel; and a power generation of the solar panel detected by the solar panel power generation detecting means. Power supply source determining means for selecting and determining a power supply source for supplying power to each electric device at the time of a power failure from the solar cell panel, the storage battery, and the battery of the vehicle, based on And a power supply source determined by the power supply source determination means based on the state detected by the indoor state detection means. A power supply destination determining unit that determines an electric device of a power supply destination to supply power from, and power supplied from a power supply source determined by the power supply source determining unit,
Power conversion supply means is provided for converting the electric equipment determined by the power supply destination determining means into electric power operable by the electric equipment and supplying the converted electric power.

In the power failure power supply device according to the present invention, when the solar panel power generation amount detection means detects a sufficient power generation amount of the solar cell panel, the surplus power of the power generation amount generated by the solar cell panel is stored in the storage battery. And a surplus power utilization means for supplying and charging the battery of the vehicle.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a configuration diagram illustrating a power failure power supply device according to Embodiment 1 of the present invention. In the figure, 21
Is a vehicle, and in this embodiment, is a hybrid vehicle provided with both a normal gasoline engine that generates energy for driving the vehicle and a battery that stores energy for driving the vehicle. 2
Reference numeral 2 denotes the battery mounted on the automobile 21, reference numeral 23 denotes a commercial power supply of, for example, AC 100 V, reference numeral 24 denotes a charge exchange for converting AC 100 V AC power supplied from the commercial power supply 23 to DC power and charging the battery 22. A power failure detection device that constantly monitors the occurrence of a power failure and outputs a power failure detection signal when the power failure is detected.
5a is a backup battery power supply at the time of a power failure of the power failure detection device 25, 26 is a DC / AC converter (power conversion supply means) for converting DC power charged in the battery 22 to AC power, and 27 is a battery 22 Common connector (existing connector) commonly used for charging the battery and power supply from the battery 22 to each indoor or outdoor electric device, 2
7a is a DC / DC power stored in the battery 22.
A cable (feeding cable) 27b for supplying to the AC converter 26 is a charging / serial conversion adapter 24 for AC1.
The DC power converted from the 00V commercial power
The cable 28a for feeding to 2 is the commonly used electrical equipment indoors or outdoors, in this case a light. Reference numeral 32 denotes a relay circuit (breaker) having a switching contact for opening the existing power line side of the light 28a at the time of power failure, and reference numeral 35 denotes a relay circuit (breaker) having a switching contact for opening the existing power line side of the commercial power supply 23 at the time of power failure. It is. These relay circuits 32 and 35 are excited by a 100 V AC commercial power supply supplied when no power failure occurs, and normally have their switching contacts closed, and when a power failure occurs, the switching contacts switch to the open state. Any of a configuration and a configuration in which opening and closing of the switching contact are controlled by the power failure detection signal output from the power failure detection device 25 may be employed. The relay circuits 32 and 35 are provided to disconnect the electric devices from the existing power line side because the respective electric devices are commonly connected on the existing power line side.

FIG. 2 is a circuit diagram showing a circuit configuration mainly of the common connector 27 in the power failure power supply device shown in FIG. 1. In FIG. 2, the same or corresponding parts as those in FIG. The description is omitted. In FIG. 2, reference numeral 127 denotes a battery-side connector component of the battery 22, which is an existing connector already attached to the automobile 21. Reference numeral 128 denotes a cable-side connector on the cables 27a and 27b. The cable-side connector configuration section 128 is connected to the DC / AC converter 2 from the battery 22.
Switch (energy supply source switching means) 1 having a switching contact for opening and closing a supply circuit of DC power supplied to the power supply 6
28a. The switch 128a is controlled by a power failure detection signal output by the power failure detection device 25 when a power failure occurs, switches the switching contact from an open state to a closed state, and switches the switching contact from the battery 22 to the DC / AC converter 26. Set to a state where power can be supplied.

Note that a DC power supplied from the battery 22 can be used as a power supply when a relay or the like is used for the switch 128a.

The cable 27a is connected to a power core wire for supplying DC power from the battery 22 to the DC / AC converter 26 and the power failure detection signal output by the power failure detection device 25 when a power failure occurs. Connector configuration part 1
And a signal core wire to be supplied to the control terminal of the switcher 128a.

Next, the operation will be described. In this power failure power supply device, the battery 22 of the vehicle 1 is always charged by the DC power supplied from the commercial power supply 23 through the charging / direct conversion adapter 24 while the vehicle is stopped.

When the power failure detection device 25 detects a power failure, the switching contact of the switching device 128a of the cable side connector configuration unit 128 is switched by the power failure detection signal output from the power failure detection device 25, and the switching contact of the switching device 128a It is closed. As a result, the DC power stored in battery 22 is
The power is supplied to the AC converter 26, is converted into AC 100 V AC power via the DC / AC converter 26, and is supplied to each electric device in the home.

Further, since the cable 27a and the cable 27b are connected to the common connector 27, no special operation such as connecting cables when a power failure occurs is required.

In the embodiment described above, the changeover devices 128a and 128
b, the switch 128a is connected to the DC / A
Placed at the connection between the C converter 26 and the cable 27a,
The switching contact of the switch 128a may be controlled by the power failure detection signal output from the power failure detection device 25.

As described above, according to the first embodiment, the battery-side connector component 12 of the automobile 21 is provided.
Since a ready-made connector can be used for the vehicle 7, no special equipment is required for the vehicle 21 including modification of the vehicle 21 and the like, and emergency power can be secured safely and reliably at the time of a power failure. Since 27b is connected to the common connector 27, there is an effect that a power supply device at the time of a power failure which does not require a special operation such as connecting a cable when a power failure occurs is obtained.

Embodiment 2 FIG. FIG. 3 shows the second embodiment.
FIG. 2 is a partial configuration diagram illustrating a main part of a power failure power supply device of FIG. In FIG. 3, the same or corresponding parts as those in FIG. In the figure, reference numeral 29 denotes a power supply control device, which has a microcomputer (priority setting means) 29c for setting priorities of power supply to each electric device to which power is to be supplied in advance. 29c, the power supply to each of the electric devices at the time of a power failure can be controlled in accordance with the priority set in accordance with the priority order set for the respective electric devices for controlling the power supply to each of the electric devices. It has a relay circuit etc. not shown.

Reference numeral 29a denotes a backup battery power supply when the power supply control device 29 fails. 29b detects the battery terminal voltage of the battery 22,
A battery terminal voltage detecting unit (battery remaining amount detecting means) for knowing the remaining battery amount of the battery. The battery terminal voltage detection unit 29b detects the battery terminal voltage of the battery 22 by rectifying the AC voltage output from the DC / AC converter 26 and converting it into a DC voltage, based on the DC voltage value at this time. The battery terminal voltage of the battery 22 is detected, or the battery terminal voltage of the battery 22 is detected from the amplitude value of the AC voltage output from the DC / AC converter 26. The battery terminal voltage of the battery 22 is directly taken in and the battery terminal voltage of the battery 22 is detected.

28a is the above-mentioned electric equipment such as a light,
Reference numeral 28b denotes the electric device such as a refrigerator, and 28c denotes the electric device such as a television. C1 is an outlet used for the electric device 28b as a refrigerator, and C2 is an outlet used for the electric device 28c as a television. Reference numeral 31 denotes a relay circuit having a switching contact for opening the existing power line side of the outlet C1 at the time of power failure, and reference numeral 33 denotes a relay circuit having a switching contact for opening the existing power line side of the outlet C2 at the time of power failure. These relay circuits 31, 32, and 33 are energized by a commercial power supply of AC100V supplied when no power failure occurs, and normally have their switching contacts closed. When a power failure occurs, the switching contacts are opened. The switching may be performed, or the switching of the switching contact may be controlled by the power failure detection signal output from the power failure detection device 25. The relay circuits 31, 32, and 33 are provided to disconnect the electric devices from the existing power line because the electric devices are commonly connected to the existing power line.

FIG. 4 shows the power supply control unit 29 when the power failure occurs, based on the priority of power supply set for each electric device to which power is supplied and the remaining energy of the battery 22. FIG. 3 is an explanatory diagram illustrating a table for controlling power supply to devices.

Next, the operation will be described. Cable 27
When a power failure occurs in a state where a and 27b are connected to the battery 22 of the automobile 21, first, the relay circuits 31, 3
2, 33 open the existing electric power line side of the electrical equipment 28a and the outlets C1 and C2. The power failure detection device 25 is backed up and operated by the backup battery power supply 25a at the time of the power failure and after the power failure occurs, and the power failure detection device 25 converts the power failure detection signal into the DC / AC converter 2.
6. Output to the switch 128a. As a result, the switch 12
8a switches the switching contact from the open state to the closed state.
Further, the DC / AC converter 26 converts the DC power supplied from the battery 22 to the AC power of 100 V AC through the switching contact of the switch 128 a according to the power failure detection signal, and converts the DC power to the relay circuit of the power supply control device 29. The voltage is supplied to the battery terminal voltage detector 29b. The battery terminal voltage detector 29b is operated by the backup battery power supply 29a even during a power failure, and detects the battery terminal voltage of the battery 22. 4A or 4B according to the detected battery terminal voltage of the battery 22.
The relay circuit of the power supply control device 29 is controlled in accordance with the priority of the table with reference to a preset table shown in FIG.

Here, the power supply control device 29 shown in FIG.
Control of the relay circuit performed with reference to the table shown in FIG.

The table shown in FIG.
2 shows the priority order of each electric device with respect to the battery terminal voltage BV of 2 V, for example, when the battery terminal voltage BV is 12 V
If it is near, the power supply control device 29 controls the relay circuit to control lighting electric equipment such as an electric light, electric equipment (not shown) for controlling temperature of a cooler or heating, and a radio outlet. (Not shown), power is supplied to all of the television outlet C2 and the refrigerator outlet C1. In this case, the lighting electric device such as the electric lamp has the highest priority, and the refrigerator outlet C1 has the lowest priority, and all of these electric devices can be used. In this state, when the battery terminal voltage BV decreases to, for example, 10.5 V, first, the power supply to the outlet C1 for the refrigerator is stopped.

When the battery terminal voltage BV further decreases to 9.5 V, for example, the outlet C for the refrigerator
The power supply to not only 1 but also the television outlet C2 is stopped.

When the battery terminal voltage BV is 9.5 V, lighting electric equipment such as electric lights of priority 1 to priority 3, electric equipment for controlling the temperature for coolers and heating, and outlets for radios Since the power supply to the power supply is performed, these electric devices can be used as long as the battery terminal voltage BV is maintained at 9.5 V.

The battery terminal voltage BV gradually decreases to 8
When the voltage falls below V, power is supplied only to lighting electrical devices such as electric lamps.

As a result, by setting the most important electrical equipment which must be operated during a power failure in the table as the highest priority electrical equipment, the important electrical equipment can be operated for a long time. Becomes possible.

The control of the relay circuit by the power supply control device 29 may be as follows, which is performed with reference to a table shown in FIG.

The table shown in FIG. 4 (b) shows the priority of each electric device. In this case, an electric device for lighting such as a light, an electric device for controlling the temperature of a cooler or heating, and a radio device are used. Any one of an outlet, an outlet C2 for a television, and an outlet C1 for a refrigerator
Power supply to two electrical devices.

Further, the power supply control device 29 is provided with circuit means for detecting whether or not each of the electric devices is used by detecting the presence or absence of current consumption by each of the electric devices. This circuit means determines whether or not each of the electric devices is used based on, for example, a shunt resistor (not shown) provided on a power supply line from the power supply control device 29 to each of the electric devices and a potential difference between both ends of the shunt resistor. Identify.

For this reason, for example, when an electric device for lighting such as an electric light and an electric device for controlling the temperature of a cooler and a heating device are used at the same time, this state is calculated based on the current consumption of each electric device. Identifying and controlling the other relay circuits except for the relay circuit that controls the relay circuit and supplies power to the higher-priority electrical device, and keeps its switching contact in an open state, The power is supplied only to the lighting electrical equipment of the priority 1 with the higher priority.

As a result, by setting the most important electrical equipment which must be kept in operation at the time of a power failure as the highest priority electrical equipment in the table, the important electrical equipment can be stably maintained for a long time. It becomes possible to operate.

The priority order of each electric device is battery 2
The table as shown in FIG. 4B that differs according to the remaining energy of the battery 2 may be set in advance according to the remaining energy of the battery 22. With this configuration, it is possible to set each of the electric devices for which the highest priority is given to the power supply according to the remaining energy of the battery 22, and to set the highest priority for the electric device according to the remaining energy of the battery 22. The power supply to the equipment can be finely controlled.

As described above, according to the second embodiment,
According to, according to the priority given to each electric device that supplies power at the time of a power failure, important electric devices can be preferentially supplied and operated, and the remaining energy of the battery 22 can be reduced to the important electric devices. On the other hand, there is an effect that a power supply device at the time of power failure that can be used effectively can be obtained.

Embodiment 3 FIG. In the first and second embodiments, the power supply at the time of the power failure is limited to the battery of the vehicle. In the third embodiment, the power is supplied by using a solar cell or nighttime power as the power supply. When a storage battery is provided, the battery is used together with the vehicle battery as a power supply source at the time of a power failure to indoor or outdoor electric equipment.

FIG. 5 is a configuration diagram showing a power failure power supply device according to the third embodiment. 5, parts that are the same as or correspond to those in FIG. 1 are given the same reference numerals, and descriptions thereof are omitted.

In FIG. 5, reference numeral 10 denotes a solar cell panel;
1 is a storage battery charged by nighttime electric power, 28d is an electric device for cooling and heating, 34 is an electric device for cooling and heating at the time of a power failure.
d is a relay circuit having a switching contact for opening the existing power line side. The relay circuit 34 is energized by a commercial power supply of AC 100 V supplied when no power failure occurs, and normally has a switching contact closed, and when a power failure occurs, the switching contact switches to an open state. Alternatively, any configuration may be employed in which the opening and closing of the switching contact is controlled by the power failure detection signal output from the power failure detection device 25. The relay circuits 31, 32, and 34 are provided to disconnect the electric devices 28a, 28b, and 28d from the existing power line because the electric devices 28a, 28b, and 28d are commonly connected to the existing power line. Reference numeral 41 denotes a DC / AC converter (power conversion supply unit) that converts the DC power supplied from the battery 22, the solar cell panel 10, and the storage battery 11 into 100 V AC according to a power failure detection signal output from the power failure detection device 25.
To each of the electric devices 28a, 28b, 2
8d.

Reference numeral 51 denotes a cable for connecting the solar cell panel 10 and the DC / AC converter 41;
This is a cable for connecting to the C / AC converter 41. The solar cell panel 10, the storage battery 11, and the battery 2
The positive output side and the negative output side via the respective cables 27a, 51, 52 are commonly connected in the DC / AC converter 41.

Next, the operation will be described. Also in this power failure power supply device, the battery 22 of the automobile 1 is always charged by the DC power supplied from the commercial power supply 23 via the charging AC / DC conversion adapter 24 while the vehicle is stopped. The storage battery 11 is also fully charged with nighttime power.

When the power failure detection device 25 detects a power failure, the switching contact of the switching device 128a in the common connector 27 is switched by the power failure detection signal output from the power failure detection device 25, and as a result, the battery 22 and the storage battery 11 are stored. The supplied DC power is supplied to the DC / AC converter 41, is converted into AC 100V AC power via the DC / AC converter 41, and is supplied to each electric device in the home.

In the daytime, if the solar cell panel 10 is sufficiently irradiated with sunlight, the solar cell panel 1
Since 0 is in a state where specified DC power can be supplied, DC power is also supplied from this solar cell panel 10.

One end of each of the cables 27a and 27b is connected to the common connector 27, the solar cell panel 10 and the DC / AC converter 41 are connected by a cable 51, and the storage battery 11 is connected to the DC / AC converter. Table 41
Are connected by the cable 52, so that even if a power failure occurs during charging of the battery 22, no special operation such as connecting the cable is required.

As described above, according to the third embodiment, as in the first embodiment, since the battery-side connector constituting portion 127 of the automobile 21 can use an off-the-shelf connector, No special equipment is required for the automobile 21 including the modification of the solar cell panel 1.
0, emergency power can be secured safely and reliably at the time of a power outage by the power supplied from the storage battery 11 and the battery 22;
Furthermore, there is an effect that a power failure power supply device that does not require a special operation such as a cable connection operation when a power failure occurs is obtained.

Embodiment 4 In the power supply device at the time of a power failure according to the fourth embodiment, both the power supply source and the power supply destination are determined based on conditions such as the amount of power generated by the solar cell panel 10, the remaining energy of the battery 22, brightness, and temperature. Supply control is performed.

FIG. 6 is a block diagram showing a power failure power supply device according to the fourth embodiment. 6, the same or corresponding parts as those in FIG. 5 are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 6, reference numeral 42 denotes a DC / AC converter, and 43 denotes both a power supply source and a power supply destination based on conditions such as the amount of power generated by the solar panel 10 and the remaining energy, brightness, and temperature of the battery 22. This is a power supply control device that performs power supply control.

FIG. 7 is a circuit diagram showing a configuration of the power supply device at the time of a power failure including the power supply control device 43. 7, parts that are the same as or correspond to those in FIG. 6 are given the same reference numerals, and descriptions thereof will be omitted. In FIG. 7, reference numeral 43a denotes a temperature detection sensor (indoor state detecting means) for detecting an indoor temperature,
43b is an illuminance sensor (indoor state detecting means) for detecting the brightness of the room, and 43f is a solar cell for detecting the amount of power generation of the solar cell panel 10 and outputting a power generation amount detection signal corresponding to the detected power generation amount as digital data. A panel power generation detection circuit (photovoltaic panel power generation detection means) 43g detects the remaining energy of the storage battery 11 and outputs a remaining energy detection signal as digital data corresponding to the detected remaining energy as digital data. Detection circuit, 43h
Reference numeral denotes a battery remaining energy detection circuit that detects the remaining energy of the battery 22 and outputs an energy remaining detection signal corresponding to the detected remaining energy as digital data.

Reference numeral 43i denotes DC / AC for converting DC power output from the solar cell panel 10 to AC 100V AC power.
A conversion circuit (power conversion supply means) 43j is a DC / AC conversion circuit (power conversion supply means) for converting the DC power output from the storage battery 11 into AC 100V AC power, and 43k is a DC / AC conversion circuit which converts the DC power output from the battery 22 to AC100V. DC / AC conversion circuit for converting to AC power (power conversion supply means)
It is.

43m is a DC / AC conversion circuit 43i, 43
j, 43k: a power supply switch for switching the supply destination of the AC power output by 43k; 43o: a switching circuit for directly supplying the DC power output by the solar cell panel 10 to the storage battery 11 to charge the storage battery 11; This is a switching circuit for directly supplying DC power output from the solar cell panel 10 to the battery 22 to charge the battery 22. 43q is DC
Microcomputers (power supply source determination means, power supply destination determination means, surplus power utilization means) for controlling the / AC conversion circuits 43i, 43j, 43k, the power supply switching circuit 43m, the switching circuits 43o, 43p, etc .; This is a backup battery power supply for backing up power during a power failure.

FIG. 8 is a flowchart showing the operation of the power supply unit at the time of a power failure. The operation will be described below with reference to this flowchart.

First, when a power failure occurs, the switching circuits 43o, 43
p is switched as shown in FIG. 7, and the switch 128a of the common connector 27 is switched to the open state. Also, DC / AC conversion circuits 43i, 43j, 43
k is not operating, and the power supply switching circuit 43m is DC / AC
The outputs of the conversion circuits 43i, 43j, and 43k are not connected to the power supply lines of any electric devices.

When the power failure detection device 25 detects the occurrence of a power failure (step ST1), the power failure detection device 25 outputs a power failure detection signal to the microcomputer 43q and the switch 128a of the common connector 27. As a result, the switch 128a is switched from the open state to the closed state, and supplies the DC power stored in the battery 22 to the DC / AC conversion circuit 43k via the switching circuit 43p.

Here, the microcomputer 43q determines the power supply source. In determining the power supply source, first, the power generation amount of the solar cell panel 10 is detected by the solar cell panel power generation amount detection circuit 43f. As a result, if the power generation amount is sufficient (step ST2), the power supply source is determined by the panel power generation amount detection circuit 43f (step ST3, step S3).
T7). On the other hand, if the amount of power generated by the solar cell panel 10 is insufficient, the remaining energy of the storage battery 11 is detected by the storage battery remaining energy detection circuit 43g (step S).
T4). As a result, if the remaining energy of the storage battery 11 is sufficient, the power supply source is determined to be the storage battery 11 (steps ST5 and ST7). If the remaining energy of the storage battery 11 is insufficient in step ST4, the remaining energy of the battery 22 is detected by the remaining battery energy detection circuit 43h, and as a result, the battery 22 is charged with sufficient energy. For example, the power supply source is determined to be the battery 22 (step ST6, step ST6).
7).

Next, the microcomputer 43q determines the electric equipment to which power is to be supplied. The determination of the electric equipment to which the power is to be supplied is performed by the temperature detection sensor 43a and the illuminance sensor 43b.
To detect the room temperature and brightness (step ST
8) Based on the detection results of the temperature and the brightness, if the indoor brightness is insufficient, the electric device 2 is a lighting lamp.
8a is determined as a power supply destination for supplying power with priority (step ST9), the power supply switch 43m is switched and controlled, and power is preferentially supplied to the electric device 28a which is a lighting lamp. If the illuminance is sufficient, the temperature detection sensor 43a
Detects the indoor temperature. As a result, if the detected temperature is low, the cooling and heating electric device 28d is preferentially determined as the power supply destination for supplying power (step ST9), and the power supply switch 43m is switched and controlled, and the cooling and heating electric device 28d is prioritized. Power supply.

Next, the microcomputer 43q performs control for effectively using the surplus power. The control for effectively utilizing the surplus power is performed when the DC power output from the solar cell panel 10 is sufficient. When the DC power output from the solar cell panel 10 is sufficient, the switching circuit 43p is controlled to output the solar cell panel 10 while performing the control for determining the power supply source and the control for determining the power supply destination. DC power is
The switching circuit 43p is switched so as to be supplied also to the second (step ST10, step ST11). At this time, whether the vehicle 21 is absent or the battery 22 is fully charged is determined before the switching circuit 43p is switched from the detection result of the battery energy remaining amount detection circuit 43h, and the vehicle 21 is absent or the battery 22 is fully charged. If so, the switching circuit 43p is not switched and the switching circuit 43o is not switched.
Is controlled, so that the DC power output from the solar cell panel 10 is also supplied to the storage battery 11 and charged (step ST10, step ST11). Then, the above-described controls are repeatedly performed at regular intervals until the power outage is resolved and the power supply is restored (step ST1).
2).

As described above, according to the fourth embodiment, the above-described control is repeatedly performed at regular time intervals, thereby providing a power supply device at the time of a power failure capable of efficiently supplying a stable emergency power without waste. There is an effect that can be obtained.

Also, when the vehicle 21 is required and cannot function as a power supply source, or when it is impossible to supply power from the battery 22, power can be appropriately supplied to each electric device according to the situation at the time of power failure. There is an effect that a possible power failure power supply device can be obtained.

[0066]

As described above, according to the present invention, when the power failure detection device detects a power failure, the battery of the electric vehicle, whose charging has been stopped due to the occurrence of the power failure, is required to be used indoors or during the power failure. Since it is configured to include an energy supply source switching unit that switches to an energy supply source for each outdoor electric device, it is not necessary to provide special equipment to the electric vehicle, and at the time of a power failure, the battery of the electric vehicle can be safely and reliably removed from the battery of the electric vehicle. This has the effect of securing emergency power.

According to the present invention, the power supply from the battery is connected between each electrode terminal of the battery and the power conversion supply means in the existing connector for charging connected to the battery of the electric vehicle. A power supply cable, and when the power failure detection device detects a power failure, the energy stored in the battery is supplied to the power conversion supply means via the power supply cable by the switch of the energy supply source switching means. With the configuration, if an existing connector for charging is connected to the battery of the electric vehicle, even if a power failure occurs, work such as routing of a new cable is unnecessary, and the electric vehicle can be safely and reliably provided during a power failure. There is an effect that emergency power can be secured from the battery.

According to the present invention, when a power failure occurs, there is provided a circuit breaker that disconnects the wiring on the common connection side of each indoor or outdoor electrical device that needs to be used during the power failure for each electrical device. Therefore, there is an effect that recovery when the power outage is resolved is safely performed.

According to the present invention, there is provided a power supply control device for deciding an electric device to be supplied with power in the event of a power failure in accordance with the priority set by the priority setting means and supplying power to the decided electric device. Since the power supply is provided, it is possible to preferentially supply electric power to an electric device that needs to be operated at the time of a power failure, and there is an effect that limited power at the time of the power failure can be effectively used.

According to the present invention, an electric device which supplies power preferentially during a power outage is determined based on the remaining energy level detected by the remaining battery level detecting means and the priority set by the priority setting means. And, since the configuration for supplying power to the determined electric device is provided, it is possible to preferentially supply power to the electric device that must be operated at the time of power failure according to the remaining energy, and There is an effect that limited power can be used effectively.

According to the present invention, the power supplied from the energy supply source which is the battery of the electric vehicle switched by the energy supply source switching means, the power supplied by the solar cell panel, and the power supplied by the storage battery are used. In the event of a power outage, each electric device is provided with a configuration that converts the power into operable power and supplies the power. is there.

According to the present invention, the power supply source for supplying electric power to each electric device at the time of a power failure based on the power generation amount of the solar cell panel detected by the solar cell panel power generation amount detecting means is provided by the solar cell panel and the storage battery. Power supply source determining means for selecting and determining from among the batteries of an automobile, indoor state detecting means for detecting various states such as temperature and brightness of the room where each electric device is provided, and indoor state detecting Based on the state detected by the means, the power supply source determining means is configured to include a power supply destination determining means for determining an electrical device of a power supply destination to supply power from the power supply source determined, Determine the power supply source and power supply destination according to the power generation status of the solar panel and the indoor status,
Electric power can be supplied to the determined electric power supply destination electric device, and there is an effect that electric power can be supplied flexibly in response to the power generation state of the solar cell panel and the indoor state.

According to the present invention, when the solar cell panel power generation amount detecting means detects a sufficient power generation amount of the solar cell panel, the surplus power of the power generation amount generated by the solar cell panel is stored in a storage battery or an automobile battery. It is configured to include a surplus power utilization means for supplying and charging the surplus power, so that the surplus power by the solar cell panel can be effectively used.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a power failure power supply device according to Embodiment 1 of the present invention.

FIG. 2 is a circuit diagram illustrating a circuit configuration mainly of a common connector in the power failure power supply device according to Embodiment 1 of the present invention.

FIG. 3 is a partial configuration diagram illustrating a main part of a power failure power supply device according to a second embodiment of the present invention.

FIG. 4 is a diagram illustrating a power supply control device that supplies power to each of the electric devices at the time of a power outage based on the power supply priority set for each electric device to which the power is supplied and the remaining energy of the battery. FIG. 6 is an explanatory diagram showing a table for controlling the operation.

FIG. 5 is a configuration diagram showing a power failure power supply device according to Embodiment 3 of the present invention.

FIG. 6 is a configuration diagram illustrating a power failure power supply device according to a fourth embodiment of the present invention.

FIG. 7 is a circuit diagram showing a configuration of a power supply control device in a power failure power supply device according to a fourth embodiment of the present invention.

FIG. 8 is a flowchart showing an operation of the power failure power supply device in the power failure power supply device of Embodiment 4 of the present invention.

FIG. 9 is a configuration diagram showing a conventional power failure power supply device.

[Explanation of symbols]

Reference Signs List 10 solar panel, 11 storage battery, 22 battery, 25 power failure detection device, 26, 41 DC / AC converter (power conversion supply means), 27 common connector (existing connector), 27a cable (power supply cable), 28a
Electric equipment, 29, 43 Power supply control device, 29b
Battery terminal voltage detection section (remaining battery level detection means), 2
9c microcomputer (priority setting means), 3
2, 35 relay circuit (circuit breaker), 43a temperature detection sensor (indoor state detection means), 43b illuminance sensor (indoor state detection means), 43f solar cell panel power generation amount detection circuit (solar cell panel power generation amount detection means), 43i , 43j,
43k DC / AC conversion circuit (power conversion supply means), 4
3q microcomputer (power supply source determination means, power supply destination determination means, surplus power utilization means), 127 battery-side connector component (existing connector), 128a switcher (energy supply source switching means).

Claims (8)

[Claims] 1. A power failure detection device for detecting a power failure, and when the power failure detection device detects a power failure, a battery of an electric vehicle that has been stopped charging due to the occurrence of the power failure is required to be used indoor or outdoor during a power failure. Energy supply source switching means for switching to an energy supply source for each of the electric devices, and the electric devices operable at the time of the power outage with the electric power supplied from the energy supply source switched by the energy supply source switching means A power supply device at the time of a power failure including a power conversion supply unit that converts and supplies electric power. 2. A power supply cable for supplying power from the battery, which is connected between each electrode terminal of the battery and a power conversion supply means in an existing connector for charging connected to the battery of the electric vehicle. The energy supply source switching means includes a switch that can supply energy stored in the battery to the power conversion supply means via the power supply cable when the power failure detection device detects a power failure. The power supply device at the time of a power outage according to claim 1, characterized in that: 3. When a power failure occurs, a circuit breaker is provided for interrupting the wiring on the common connection side of each indoor or outdoor electrical device that needs to be used during the power failure for each electrical device. The power supply device at the time of a power failure according to claim 1 or 2. 4. A priority setting means for setting priorities for the respective electric devices in advance, and an electric device for supplying power with priority during a power failure according to the priorities set by the priority setting means is determined. 4. The power supply device according to claim 1, further comprising: a power supply control device configured to supply power to the determined electric device. 5. 5. The power supply control device includes a battery remaining amount detecting unit that detects a remaining amount of energy stored in a battery of the electric vehicle. The electric equipment to be preferentially supplied with power at the time of a power failure based on the priority set by the rank setting means, and power is supplied to the decided electric equipment. Power supply during power outage. 6. A power conversion supply unit comprising: a solar cell panel that supplies power to each electric device at the time of a power failure; and a storage battery that is charged with nighttime power and supplies power to each of the electric devices at the time of a power failure. Each of the electric devices operates at the time of the power failure, by using the power supplied from the energy supply source, which is a battery of the electric vehicle switched by the switching unit, the power supplied by the solar cell panel, and the power supplied by the storage battery. The power supply at the time of a power failure according to any one of claims 1 to 3, wherein the power is supplied after being converted into possible power. 7. A photovoltaic power generation amount detecting means for detecting a power generation amount of a photovoltaic panel, and each electric power at the time of a power failure based on the power generation amount of the photovoltaic panel detected by the photovoltaic power generation amount detecting means. Power supply source determining means for selecting and determining a power supply source for supplying power to the device from the solar cell panel, the storage battery, and a battery of an automobile; and a temperature and brightness of a room in which each of the electric devices is provided. Indoor state detecting means for detecting various states such as power, and electric power of a power supply destination for supplying power from the power supply source determined by the power supply source determining means based on the state detected by the indoor state detecting means. Power supply destination determining means for determining the device, wherein the power conversion supply means, the power supplied from the power supply source determined by the power supply source determination means, the power supply destination determination means Boss was to electrical equipment, power failure power supply device according to claim 6, wherein the electrical equipment and supplying converted to an operable power. 8. When the solar panel power generation amount detection means detects a sufficient amount of power generation of the solar panel, it supplies surplus power of the amount of power generated by the solar cell panel to a storage battery or a battery of a vehicle to charge the battery. The power supply device at the time of a power outage according to claim 7, further comprising a surplus power utilization unit that performs the following.