JPH0530657A - Energization control device - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a power distribution control device that can effectively reduce the electricity bill by effectively utilizing the hourly electricity bill system. [Structure] A remote control relay 14 for opening and closing power supply to a plurality of load devices 13, a memory 18 for storing an allowable time period for energizing each load device, and whether or not a special use time period transmitted from the outside 17 for receiving the signal of
And an energization controller 19 that controls the opening and closing of the remote control relay 14 based on the outputs of the memory 18 and the receiver 17. [Effect] The electric power charge can be reduced because the control is automatically performed during the special charge application time without the need for human intervention.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is an energizing system that automatically controls energization so that the operating ratio in a special charge time period, which is a cheap electricity charge, increases under the application of the hourly electric power rate system. Regarding the control device.

[0002]

2. Description of the Related Art Electric power companies have introduced hourly electric light charges in addition to the conventional late-night electric power charge system from November 1990. The outline of this system is that the scope of special charges is expanded to 100V single phase of the electric light circuit which is the power source of general electric appliances, and the accounting period of the power consumption is from 7:00 to 2
It is divided into two, the daytime time at 3:00 and the nighttime time from 23:00 to 7:00. The nighttime charge is significantly lower than the conventional electricity charge, and the daytime charge is slightly higher.

Specific contents will be described with reference to the drawings. Figure 3
1 is a block diagram showing a conventional energization control device, 1 is a power source, 2 is an integrated watt-hour meter dedicated to a time zone-based light charge system with a built-in clock function. There are two integrated counters, one for general charges that accumulates the amount of electricity used from 7:00 in the morning to 23:00 in the evening, and the other one from 23:00 in the evening to 7:00 in the next morning. It is a counter for special charges that accumulates the amount of electricity used to which the discount charge is applied. Switching between these two counters is performed at 7 o'clock in the morning and at night by the clock function built into the total electricity meter 2 itself. It is configured to automatically switch at 23:00.

Reference numeral 3 denotes a distribution board. In the distribution board 3, a main breaker 4 for preventing a current exceeding a permissible value from flowing,
It is composed of a plurality of distribution breakers B _{1 to} B _n 5 for distribution. The distribution breakers B _{1 to} B _n 5 include loads L _{1 to} L _n such as a light circuit, an outlet, or a large device.
6 is connected.

Since the conventional energization control device corresponding to the electric charge system according to the time zone is configured as described above, it is possible to operate at night.
At 7 o'clock or 7 o'clock in the morning, the count of the integrated watt hour meter 2 is automatically changed. Therefore, for all loads L _{1 to} L _n 6 including the light circuit, from 23:00 in the evening to 7 in the morning.
The electricity used during the period will be discounted.

On the other hand, various types of water heaters, dishwashers, washing machines, clothes dryers, etc. are conceivable as large-sized equipment and load equipment capable of shifting the operating time to midnight. However, of these load devices, the only new product that is compatible with the hourly lighting system that automatically shifts to midnight is the improvement of the electric water heater that uses midnight power. It is only an item.

[0007]

Under the above circumstances, in order to positively shift the operating time of large load equipment to the late-night hours when the discounted electricity rate is applied, There was a trouble that the user had to turn on the operation switch of each load device after 23:00 in the evening. Also, even if you use a time switch that is commercially available separately, some large load devices do not have enough electrical ratings, and even if the electrical ratings are satisfied, you may need to install several time switches for each load device. The annoyance of having to set it once a day remained. Furthermore,
Even if you buy a new product compatible with the new system, you still have to update what you can still use, so there were problems in terms of effective use of resources and cost.

The present invention has been made in order to solve the above problems, and is intended to obtain an energization control device capable of automatically controlling the daily operating time of each load device in a power distribution line. is there.

[0009]

An energization control device according to the present invention includes a plurality of switch circuits, a memory for storing an allowable energization time zone of a load device, and a special charge time zone transmitted from the outside. The present invention is provided with a receiving section for receiving a signal, and an energization control section for controlling the opening / closing of the switch circuit based on the energization allowable time zone stored in the memory and the signal received by the receiving section.

[0010]

In the energization control device according to the present invention, the energization control unit closes the switch circuit in the energization allowable time zone of the load device stored in the memory for a time zone that coincides with the special charge time zone received by the receiving section. The switch circuit is controlled to open during times when they do not match.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. FIG. 1 is a block diagram showing the configuration of an energization control device according to the present invention. In the figure, 1 is a power source, and 7 is an integrated watt hour meter for a time-based light charge system, and two integrated counters for electric energy are provided, as in the integrated watt hour meter 2 described in FIG. Is. This integrated watt-hour meter 7 is used by the transmitter 8 provided on the power supply side to notify the user whether the discounted charge application time zone from 23:00 to 7:00 the next morning or another time zone. It has its own function of receiving a signal to be emitted and switching between two counters.

Reference numeral 9 denotes a distribution board. The distribution board 9 has a main breaker 4 for preventing a current more than an allowable value from flowing,
A first group power distribution breaker B _{a1 to} B _an 10 and a second group power distribution breaker B _{b1 to} B _bn 11 for power distribution are provided. For the first group distribution breakers B _{a1 to} B _an 10, non-target loads that cannot or cannot be energized due to the use of the time-based light charge system such as outlets and light load light circuits where load devices cannot be specified. L _{a1 to} L _an 12 are connected.

The second group distribution breakers B _{b1 to} B _bn 11
Connected to the control target loads L _{b1 to} L _bn 13 are large-sized load devices such as various water heaters, dishwashers, washing machines, and clothes dryers, and the operating times can be shifted. This second group distribution breaker B _{b1 to} B _bn 11 and control target load L _b1 to
Remote control relays (hereinafter referred to as remote control relays) R _{1 to} R _n 14 are connected between the L _bn 13 and the remote control relays R _{1 to} R _n 14 form a switch circuit and are controlled by the control unit 15. ..

The control unit 15 has a load L _b1 for each control target.
About L _bn 13, an input unit 16 for inputting a current-carrying allowable time period in which the user may drive in this time period, and a discount charge application time period transmitted from the transmission unit 8 And a receiving unit 17 for receiving a signal for informing whether the time is in another time zone.

As shown in FIG. 2, the control unit 15 has a memory 18 for storing the energization allowable time zones of the respective loads L _{b1 to} L _bn 13 to be controlled, which are input and set by the user using the input unit 16. The memory 18 and the receiving unit 17 control the ON / OFF of the remote control relay 14 by the energization control unit 1
9 is connected.

On the other hand, the load L13 to be controlled is shown in a generalized configuration. A main functional unit 20 for boiling water or washing dishes, and an opening / closing unit 21 for opening and closing power supply to the functional unit 20. And the power supply O to the controlled load L13
Based on the information of the power switch 22 for inputting N / OFF and the sensor 23 for grasping the operating state, the opening / closing part 21
And a control unit 24 for controlling

Next, the operation of this embodiment will be described.
The user inputs and sets the energization allowable time zones of the respective controlled loads L _{b1 to} L _bn 13 by the input unit 16 in advance so that the operation ratio in the discount rate application time zone becomes high within the range that does not interfere with his / her life. Do. For example, an electric water heater for midnight power is 8 hours from 23:00 to 7:00 am, and a washing machine is 23 hours.
Input setting is performed by the input unit 16 such as from 0:00 to 0:00 and in the dishwasher from 3:00 to 5:00. As in the above example, it is also possible to set multiple loads so that they do not overlap at the same time. The contents set by the input unit 16 are stored in the memory 18 of the control unit 15.

On the other hand, the special charge application time for applying the discount charge is preset by the electric power company. When the transmission unit 8 issues a signal notifying that it is in the special charge time zone,
The integrated electricity meter 7 switches to the special charge integration counter. Further, when the receiving unit 17 receives the same signal, the energization control unit 19 performs time contrast with the energization allowable time period of the control target loads L _{b1 to} L _bn 13 stored in the memory 18, and enters the energization allowable time period. Then, the remote control relays R _{1 to} R _n 14 to which the control target load is connected are turned on, and the control target loads L _{b1 to} L _bn 13 are brought into an operating state. At this time, since the power switch 22 of the controlled loads L _{b1 to} L _bn 13 is ON, the opening / closing unit 21 is ON and the functional unit 20
Energization is started.

When the sensor 23 detects that the operation purpose of the equipment has been achieved, the control section 24 performs control to turn off the opening / closing section 21, and the energization of the functional section 20 ends. afterwards,
When the end time of the energization permissible time zone stored in the memory 18 is reached or the signal indicating the end of the special charge time zone is issued from the transmission section 8 and the reception section 17 receives this, the energization control section 19 controls the remote control. Turn off the relays R _{1 to} R _n 14. When the transmitting unit 8 issues a signal indicating the end of the special charge time zone, the integrated wattmeter 7 automatically switches from the special charge integration counter to the general charge integration counter.

Since it is controlled in this way, the load equipment can be automatically operated every day by using the time zone where the electricity charge is low, and the operation switch of each load equipment can be set to the desired time as in the conventional case. There is an advantage that the troublesomeness of setting the time switch once a day can be eliminated and the load device does not have to be replaced with a new product compatible with the new system, so that the cost problem can be solved.

[0021]

As described above, according to the present invention, the permissible daily energization time zones for a plurality of load devices are stored in the memory, and the special charge time start / end information from the outside received by the receiving unit is also stored. In addition, since the energization control unit controls the opening and closing of the switch circuit, the load equipment can be automatically operated every day, and the operation ratio at a special special charge time can be expanded without human labor, and the electricity charge can be increased. Can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an energization control device according to the present invention.

FIG. 2 is a block diagram showing a configuration of a control unit according to the present invention.

FIG. 3 is a block diagram showing a conventional energization control device.

[Explanation of symbols]

 13 Control target load 14 Remote control relay (switch circuit) 17 Receiver 18 Memory 19 Energization controller

Claims (1)

Claim: What is claimed is: 1. An energization control device for controlling energization of a plurality of loads, comprising: a plurality of switch circuits for opening and closing power supply to each load; and an allowable energization time zone for each load. A memory for storing, a receiving unit for receiving a signal indicating whether or not a special charge time period is transmitted from the outside, and a switch circuit based on the energization allowable time period stored in the memory and the signal received by the receiving unit. An energization control device comprising an energization control unit that controls opening and closing.