JP2004332998A - Controller of hot water storage type water heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a hot water storage type water heater can not be adapted to a new electricity supply contract course, as electric power companies set various time zones for a low rate of electricity supply contract, and the proper setting can not be achieved in certain electric power company. <P>SOLUTION: This controller of the hot water storage type water heater comprises a remaining hot water detecting part 8 for detecting the amount of remaining hot water in the hot water storage tank 2, a nonvolatile storage part 10 having a storage area by every time zone obtained by dividing one day into a plurality of time zones and capable of performing the electrical writing and eliminating, a display part 14 for displaying the contents of memory in the storage part 10 corresponding to the time zone, a time zone setting part 13 for setting a midnight time zone A, a first daytime time zone B, and a second daytime time zone C of an electric rate schedule, and storing them in each memory area of the storage part 10, and a boiling-up control part 11 for controlling the boiling-up on the basis of the present time information, the contents set in the storage part 10 and the information on remaining hot water from the remaining water detecting part 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a control device for a hot water storage device such as an electric water heater or a heat pump water heater that heats a hot water storage tank using various electricity rates provided by a power company.
[0002]
[Prior art]
Conventionally, in this type of device, as disclosed in Patent Document 1, for example, the device itself automatically determines whether it is a midnight power system or a time-based lighting contract, and the operation corresponding to the corresponding power system is performed. Control was performed.
[0003]
[Patent Document 1] Japanese Patent Application Laid-Open No. 8-145469
[Problems to be solved by the invention]
By the way, in this conventional apparatus, since the equipment itself is monitored by monitoring the use condition of the equipment and the equipment itself determines the light contract, the light contract does not necessarily match the light contract actually exchanged by the user with the power company. There is a problem that the time period when the price is reduced differs depending on the power company, and it may not be possible to set properly depending on the power company, and it is not possible to cope with the appearance of a new lighting contract course. Was.
[0005]
[Means for solving the problem]
Therefore, in order to solve the above problems, the present invention, in a hot water storage type hot water supply device that uses a variety of electricity rates to heat the hot water storage tank, a remaining hot water amount detection unit that detects the remaining hot water amount in the hot water storage tank, An electrically erasable non-volatile storage unit that divides a day into a plurality of time zones and has a memory area for each time zone, and a display unit that displays the storage content of the storage unit corresponding to the time zone. A time zone setting unit for setting a midnight time zone, a first daytime time zone, and a second daytime time zone of the electricity tariff system for each time zone and storing the time zone in each memory area of the storage unit; And a boiling control unit for controlling the boiling based on the current time information from the clock unit, the settings in the storage unit, and the remaining hot water amount information from the remaining hot water amount detecting unit.
[0006]
Thereby, the time zone of the lighting contract by time zone provided by the power company can be freely set for each time zone, and appropriate setting can be performed for all the power companies. Even when a new lighting contract course appears, it is possible to deal with it simply by changing the setting without replacing equipment or replacing control parts.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a hot water storage type hot water supply unit which is operated under an electric light contract with an electric power company. 2 is a hot water storage tank for storing hot water. 3 is a heating means such as a heat pump for circulating hot water in the hot water storage tank 2 for boiling. The control device of the hot water supply type water heater 1 is a remote controller 5 and 6 is a hot water tap.
[0008]
The control device 4 includes a remaining hot water amount detection unit 8 that detects a remaining hot water amount in the hot water storage tank 2 based on signals from a plurality of hot water storage temperature sensors 7 provided on a side surface of the hot water storage tank 2, and a clock unit 9 that measures a current time. And a storage unit 10 composed of an electrically erasable and non-volatile memory having a memory area for each time zone by dividing the day into 24 parts, the storage contents of the storage unit 10, the current time information from the timer unit 10, and the remaining time. A boiling control unit 11 for controlling the boiling by the heating means 3 based on the remaining hot water amount information from the hot water detecting unit 8 is provided.
[0009]
The remote controller 5 has an operation switch 12 for setting and setting a hot water supply temperature, and when a time zone setting mode is entered by a specific operation of the operation switch 12, a memory area for each time zone of the storage unit 10 has an electric charge system. A time zone setting unit 13 for operating and setting a late night time zone A where the price is relatively low, a first daytime zone B where the price is relatively high, and a second daytime zone C where the price is relatively low, and a hot water supply set temperature. And a display unit 14 that normally displays the remaining hot water amount and the like, and displays the contents set and stored in the storage unit 10 in accordance with the time zone when the time zone setting mode is entered by the specific operation of the operation switch 12. Is provided.
[0010]
As shown in the drawing, the storage unit 10 is set to a time zone setting mode by a specific operation of the operation switch 12, and the time zone setting unit 13 operates the operation switch 12, for example, from 23:00 to 7:00 a.m. A time zone A, a second daytime zone C from 7:00 to 10:00, a first daytime zone B from 10:00 to 17:00, and a second daytime zone C from 17:00 to 23:00 are set and stored. . At this time, the display unit 14 is configured to display the time zone of the power rate system for each time zone.
[0011]
The boiling control unit 11 performs the boiling control while suppressing the electricity rate based on the current time information, the remaining hot water amount information, and the setting contents of the storage unit 10. Specifically, for example, even if the amount of remaining hot water is low at 16:00, since the first daytime zone B where the electricity rate is relatively high is set, no boiling is performed at this point, and the electricity rate is not increased. Control is performed so as to wait for the boiling until 17:00 when the relatively inexpensive second daytime zone C is set. Further, when the current time is 23:00, which is the time when the midnight time zone A is set, the hot water in the hot water storage tank 2 is heated by the required amount of heat the next day by 7:00 at which the midnight time zone A in the next morning ends. Like that.
[0012]
Since the contents set and stored in the storage unit 10 can be freely changed and set every hour by the setting of the time zone setting unit 13, it is necessary to perform appropriate settings for all power companies. Is possible, and even when a new lighting contract course appears, it is possible to respond simply by changing the setting without replacing equipment or replacing control parts, reducing the electricity fee due to boiling. In addition, the time zone setting of the power tariff system stored in the storage unit 10 is retained without being erased even if a power failure occurs. Therefore, once set, it is set again unless changed. Since there is no need, there is no loss of user convenience.
[0013]
Note that the present invention is not limited to the above embodiment, and an electric heater may be used as the heating means 3, and the electric heater may be directly arranged in the hot water storage tank 2. Although the operation of the time zone setting unit 13 is the operation switch 12 for setting the hot water supply temperature, the operation switch 12 is not limited to this, and may be a switch for operating another function (not shown).
[0014]
【The invention's effect】
As described above, according to the present invention, it is possible to freely set the time zone of the time-based light contract provided by the power company for each time zone, and to set an appropriate setting for all the power companies. It is very good that it can be done and when a new lighting contract course appears, it is possible to respond simply by changing the setting without replacing equipment or replacing control parts It has the effect that it has.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot water storage type hot water supply main body 2 Hot water storage tank 4 Control device 8 Remaining hot water amount detection part 9 Clocking part 10 Storage part 11 Boiling control part 13 Time zone setting part 14 Display part

Claims (1)

In a hot water supply type hot water supply system that heats up a hot water storage tank using various electricity tariffs, a remaining hot water amount detection unit that detects the remaining hot water amount in the hot water storage tank and divides the day into multiple time zones and An electrically erasable non-volatile storage unit having a memory area for each zone, a display unit for displaying the storage contents of the storage unit corresponding to time zones, and a midnight time of the electricity rate system for each time zone A time zone setting unit that sets a time zone, a first daytime time zone and a second daytime time zone and stores the time zone in each memory area of the storage unit, a timekeeping unit that counts the current time, and current time information from the timekeeping unit. A control device for a hot-water storage type water heater, comprising: a boiling control unit that controls boiling based on the setting content of the storage unit and the remaining hot water amount information from the remaining hot water amount detection unit.

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