JP3172078U - Power supply - Google Patents

Abstract

[PROBLEMS] To achieve both (1) the ability to charge a storage battery using midnight power, a solar battery, a wind power generator, etc. as a power source, and (2) the ability to supply both 100V and 200V voltages. Provide a power supply that can
A circuit is provided that can charge a storage battery with DC and AC power supplies. Two output terminals are provided: an output terminal for supplying AC power of 200 V from the storage battery, and an output terminal for supplying AC power having a reduced voltage of 100 V. A controller is provided outside the housing to enable easy control.
[Selection] Figure 1

Description

  The present invention relates to a power supply device that charges a storage battery and supplies household power.

In recent years, with the spread of so-called eco-oriented and power-saving oriented, it has become common to store household power in storage batteries and supply them as needed. Various power sources such as late-night power, solar cells, wind power generators, etc. have come to be used.
However, it is difficult to provide various types of capacitors corresponding to diversified power sources due to storage space in the home.
In addition, there are two household power voltages to be supplied, 100V and 200V, and it is difficult to provide two power supply devices to cope with both, due to the storage space in the home.
In view of the above situation, (1) the ability to charge a storage battery using midnight power, solar cells, wind power generators, etc. as a power source, and (2) the ability to supply both 100V and 200V voltage power sources Is preferably realized by: The power supply device is preferably small.

Regarding the above point (1), Patent Document 1 discloses means for charging one storage battery by either an AC power source (for example, midnight power) or a DC power source (for example, a solar cell). According to such means, it is possible to cope with various power sources by one storage battery.
However, Patent Document 1 does not disclose a response to the point (2).

Regarding the above point (2), Patent Document 2 discloses a power supply device capable of supplying power of both AC 100V and AC 200V voltages. However, the power supply device disclosed in Patent Document 2 switches the output voltage by switching, and does not simultaneously supply power of both AC 100V and AC 200V.
Patent Document 3 discloses a device that efficiently boosts AC 100V power to AC 200V. By using the power supply device that supplies AC 100V power and the device disclosed in Patent Document 3, it is possible to simultaneously supply power of both AC 100V and AC 200V voltages. However, two devices are used, and there are limitations due to the storage space at home. In addition, in grasping the operation status of the apparatus, the two apparatuses must be managed separately, which is troublesome. In addition, accurate judgment may be difficult for a resident of a household who does not necessarily have knowledge of electrical equipment. Centralized and easy management is not realized.

  As described above, (1) the storage battery can be charged using midnight power, solar cells, wind power generators, etc. as the power source, and (2) both 100V and 200V voltages can be supplied as one power source. It was not known to be realized centrally by the device.

JP 2011-083089 A Japanese Patent Laid-Open No. 2002-245160 Japanese Patent Laid-Open No. 2005-083089

  The problems to be solved are (1) the ability to charge the storage battery using midnight power, solar cells, wind power generators, etc. as the power source, and (2) the ability to supply both 100V and 200V voltages. It is to be realized by one power supply unit.

The power supply of the present invention is
A storage battery, a conversion circuit that outputs the power of the storage battery as AC power of a first voltage, a first output terminal that supplies AC power of the first voltage to the outside, and transforms the output of the conversion circuit. And a second output terminal for supplying the AC power of the second voltage to the outside.
With the power stored in the storage battery, the power of both the first voltage and the second voltage can be simultaneously supplied by one power supply device. Here, it is preferable to set the first voltage to 200 V and the second voltage to 100 V, but this voltage is not necessarily required. For example, when the power supply device of the present invention is exported, the standard voltage (for example, 114 V) of the country of the export destination can be used as the first voltage and / or the second voltage. Also, the first voltage can be 100V and the second voltage can be 200V.

The power supply of the present invention is
A DC charging circuit for charging the storage battery with electric power supplied from a DC power supply is provided.
DC power sources such as solar cells and wind power generators can be used.

The power supply of the present invention is
An AC charging circuit for charging the storage battery with electric power supplied from an AC power supply is provided.
AC power such as midnight power can also be used. It can be used in combination with the DC power supply described above. According to the features described above, (1) it is possible to charge a storage battery using midnight power, a solar battery, a wind power generator, etc. as a power source, and (2) supply both 100V and 200V voltage. It can be realized centrally by the power supply device.

The power supply of the present invention is
The voltage of the AC power supply is equal to the first voltage,
A rectifier circuit that supplies power supplied from the AC power source to the first output terminal is provided.
The AC power source is considered to be household power. Then, even if it directly outputs to an output terminal, without charging a storage battery, it can be used without a problem.
When using midnight power, it is effective to input a predetermined amount of power, output only the actual usage amount directly to the output terminal, and supply the remaining amount to the AC charging circuit.

The power supply of the present invention is
A controller having at least a switch for disconnecting the connection between the storage battery and the conversion circuit, and the indicator for displaying the remaining amount of the storage battery, the connection between the AC power supply and the rectifier circuit, and
And a connection for installing the controller at a location separated from the main body of the power supply device.
When installing a power supply device in a home, it is often installed in a place where operation is difficult, such as the back side of a wall. Easy control is realized by installing the controller in a place separated from the main body of the power supply (a place where the operation is easy).

The power supply of the present invention is
The conversion circuit, the first output terminal, the transformer, and the second output terminal are provided in one housing,
When the DC charging circuit, the AC charging circuit, or the rectifying circuit is provided, the DC charging circuit, the AC charging circuit, or the rectifying circuit is provided in the housing.
The components constituting the power supply device are provided in one housing so that they can be stored even if the storage space at home is small. However, the controller can be provided outside the housing. Further, since the size of the storage battery varies depending on its capacity, it may be difficult to store it in the housing, and it is also effective to provide it separately outside the housing.

The power supply of the present invention is
The first voltage is 200V, and the second voltage is 100V.
Since homes in Japan use alternating currents of 100V and 200V, these two voltages are supplied. The first voltage is set to 200V, and the voltage applied to the transformer is reduced by reducing the voltage by the transformer and supplying the second voltage of 100V.

According to the power supply device of the present invention, both (1) a midnight power, a solar battery, a wind power generator, etc. can be used to charge a storage battery, and (2) both 100V and 200V voltages can be supplied. This can be realized centrally by one power supply device.
Further, the controller can be provided outside the housing to realize easy control.

FIG. 1 is a diagram illustrating a configuration of a power supply device. FIG. 2 is a diagram showing the display and buttons of the controller. FIG. 3 is a diagram showing a unit of mounting.

Examples of the present invention will be described below.
In the embodiment, only the portion related to the present invention in the power supply device will be described. In an actual power supply device, a circuit not shown in the embodiment may be used.
In addition, since components such as a conversion circuit and a rectifier circuit are circuits similar to those widely used, detailed description of such circuits is omitted.

  FIG. 1 is a diagram illustrating a configuration of a power supply device. The power supply device 1 includes a storage battery 2, an AC charging circuit 21, a DC charging circuit 22, a conversion circuit 3, a rectifier circuit 4, a transformer 5, an AC power switch 61, a storage battery switch 62, a controller 7, a first measuring instrument 71, A second measuring device 72 and a power failure detector 73 are provided. The power supply device 1 inputs power from a 200V AC power source and a DC power source, and supplies 200V and 100V AC power.

The AC power source is connected to the AC charging circuit 21, and the DC power source is connected to the DC charging circuit 22 to charge the storage battery 2. Here, a household 200V power supply is used as the AC power supply. As the DC power source, a solar cell, a wind power generator, or the like can be used.
The power charged in the storage battery 2 is converted into 200V AC power by the conversion circuit 3 when the storage battery switch 62 is turned ON, and is output from the first output terminal indicated as “AC200V” in the drawing.
The 200V AC power is stepped down to 100V by the transformer 5 and output from the second output terminal indicated as “AC100V” in the drawing.
As a whole, 200 V AC power from the first output terminal and 100 V AC power from the second output terminal are simultaneously output, and both of these powers are supplied from the storage battery 2.

  The power from the AC power source is rectified by the rectifier circuit 4 when the AC charging switch 61 is turned on, and is output from the first output terminal indicated as “AC200V” in the drawing. Further, the voltage is stepped down to 100 V by the transformer 5 and is output from the second output terminal indicated as “AC 100 V” in the drawing. That is, if there is sufficient power input from the AC power supply, the AC power of 200 V from the first output terminal and the AC power of 100 V from the second output terminal are used without using the power charged in the storage battery 2. Are output at the same time. Moreover, the electric power which is not output among the electric power input from the AC power supply is supplied to the AC charging circuit 21 and used for charging the storage battery 2.

The controller 7 operated by the user operates the AC power switch 61 and the storage battery switch 62. In addition, a first measuring device 71 that measures the output status (frequency, voltage, and current) from the first output terminal and a second measuring device 72 that measures the output status from the second output terminal are provided, The measurement result is displayed on the controller 7. Further, the remaining amount of the storage battery 2 is displayed on the controller 7.
FIG. 2 is a diagram showing the display and buttons of the controller. The AC power switch button 81 operates the AC power switch 61, and the direct battery switch button 82 operates the storage battery switch 62.

  A power failure detector 73 that measures the voltage input from the AC power supply is provided. The power failure detector 73 measures the voltage input from the AC power source. If the voltage is not present or low, the power failure detector 73 detects a power failure and turns on the storage battery switch 62 by a circuit (not shown). It is possible to automatically switch to power supply from the storage battery at the time of power failure.

FIG. 3 is a diagram showing a unit of mounting. In the housing 9 which is the main body of the power supply device 1, there are an AC charging circuit 21, a DC charging circuit 22, a conversion circuit 3, a rectifier circuit 4, a transformer 5, an AC power switch 61, a storage battery switch 62, and a first measuring instrument 71. The second measuring device 72 and the power failure detector 73 are stored. The size of the housing 9 can be about 60 cm × 40 cm × 20 cm, and is easy to install at home.
The storage battery 2 varies in size depending on the capacity according to the amount of power used in each household. If the size cannot be accommodated inside the housing 9, it is installed outside the housing 9 as shown in the figure.
The controller 7 can be provided on the side portion of the housing 9 as shown in FIG. 1A, or can be provided at a location separated from the housing 9 via connection as shown in FIG. When installing a power supply device in a home, the housing 9 and the storage battery 2 are often installed at places where operation is difficult, such as the back side of a wall. Easy control can be realized by installing the controller at a location separated from the main body of the power supply device (for example, around a household power breaker) as shown in FIG.

  In this example, a 200V AC power supply was used, the first voltage was 200V, and the second voltage was 100V. In this regard, a 100V AC power supply may be used, the first voltage may be 100V, and the second voltage may be 200V.

  (1) A power source capable of centrally realizing both of being capable of charging a storage battery using midnight power, a solar battery, a wind power generator, etc. as a power source, and (2) being able to supply power of both voltages of 100V and 200V. It is a device that can be used by many households.

DESCRIPTION OF SYMBOLS 1 Power supply device 2 Storage battery 21 AC charging circuit 22 DC charging circuit 3 Conversion circuit 4 Rectifier circuit 5 Transformer 61 AC power switch 62 Storage battery switch 7 Controller 71 First measuring instrument 72 Second measuring instrument 73 Power failure detector 81 AC power switch Button 82 Battery switch button 9 Housing

Claims (7)

  A storage battery, a conversion circuit that outputs the power of the storage battery as AC power of a first voltage, a first output terminal that supplies AC power of the first voltage to the outside, and transforms the output of the conversion circuit. And a second output terminal for supplying the AC power of the second voltage to the outside.   The power supply apparatus according to claim 1, further comprising a DC charging circuit that charges the storage battery with electric power supplied from a DC power supply.   The power supply apparatus according to claim 2, further comprising an AC charging circuit that charges the storage battery with electric power supplied from an AC power supply. The voltage of the AC power supply is equal to the first voltage,
The power supply apparatus according to claim 3, further comprising a rectifier circuit that supplies electric power supplied from the AC power supply to the first output terminal. A controller having at least a switch for disconnecting the connection between the storage battery and the conversion circuit, and the indicator for displaying the remaining amount of the storage battery, the connection between the AC power supply and the rectifier circuit, and
The power supply apparatus according to any one of claims 1 to 4, further comprising a connection for installing the controller at a location separated from a main body of the power supply apparatus. The conversion circuit, the first output terminal, the transformer, and the second output terminal are provided in one housing,
6. The power supply device according to claim 1, wherein the power supply device is provided in the housing when the DC charging circuit, the AC charging circuit, or the rectifying circuit is provided. 7.   The power supply device according to any one of claims 1 to 6, wherein the first voltage is 200V and the second voltage is 100V.

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