JP2020091050A - Storage type water heater - Google Patents

Abstract

To eliminate complication in setting execution/non-execution, and setting an operation start time in a case when a solar light utilization boiling-up operation is executed over continuous several days.SOLUTION: On setting screens 60B-60M of a remote control device 50, selection of execution/non-execution of a solar light utilization boiling-up operation, and setting of a start time can be performed over continuous two days individually by each date. Thus a user can perform selection of execution/non-execution of the solar light utilization boiling-up operation for two days of, for example, September 15 (Saturday) and September 16 (Sunday) (Fig. 12(a), Fig. 15(a)), and setting of the start times in the execution days (Fig. 13(b), Fig. 15(b)) at a time in advance on September 14 (Friday) prior to the execution days of the solar light utilization boiling-up operation, and the selection/setting contents can be individually changed by each date.SELECTED DRAWING: Figure 11

Description

The present invention relates to a hot water storage water heater that performs a boiling operation using electric power generated by solar power generation.

Conventionally, in this type of hot water storage type water heater, as described in Patent Document 1, a HEMS (=Home Energy Management System) device performs power management, and photovoltaic power generation is performed when sunshine conditions based on weather forecast information are good. There has been a system in which electric power is generated by receiving sunlight by controlling the device, and the hot water storage type water heater uses the electric power to perform a boiling operation in which hot water in a hot water storage tank is heated.

Japanese Unexamined Patent Application Publication No. 2018-15826

In recent years, even in a hot water storage type hot water supply device that is not equipped with the HEMS device, a method is being proposed in which the boiling operation using sunlight similar to that of the conventional technique can be executed. That is, after the user himself/herself judges the quality of the sunshine conditions based on the weather forecast or the like, by manual operation, for example, whether or not to execute the solar light boiling operation on the next day, or if it is executed, the operation start time is set to the next day. It is to set when, etc.

However, in the case of the above method, when trying to execute the solar light boiling operation over a plurality of consecutive days, on the day before each of the plurality of execution days, execution/non-execution or operation of the solar light boiling operation is performed. The start time must be set every day, which is very complicated for the user.

In order to solve the above-mentioned problem, in claim 1 of the present invention, a hot water storage tank for storing hot water and a heating means for heating the hot water are provided, and the heating means heats the hot water in the hot water storage tank in a boiling operation. In the hot water storage water heater that performs the above, on the desired day, the sun using the electric power from the solar power generation device in the daytime zone excluding the predetermined night zone on each of the predetermined consecutive days consecutive for a plurality of days after the desired day. The selection of execution/non-execution of the light-utilizing boiling operation is individually accepted for each date, and the execution-selection receiving means and the execution-selection receiving means allow the solar-powered boiling on at least one of the consecutive dates. When the execution of the operation is selected, the setting of the start time of the solar-powered boiling operation on the at least one due date is individually accepted for each due date, and the time setting acceptance means and the execution selection acceptance means. According to the selection of the execution of the solar-powered boiling operation received by, and the setting of the start time received by the time setting reception means, the heating means for performing the solar-powered boiling operation. And heating control means for controlling.

Further, in claim 2, the execution selection receiving means does not receive, on the desired day, selection of execution/non-execution of the sunlight-using boiling operation on the desired day.

Further, in claim 3, the execution selection receiving means does not receive selection of execution/non-execution of the solar light boiling operation on the next day after the start time of the night zone on the desired day. Is.

Further, in claim 4, cancellation of the selection of the execution or the non-execution of the solar-assisted boiling operation for each of the dates, which is accepted by the execution selection acceptance means, is individually accepted for each date, and executed. It further comprises cancellation acceptance means.

Further, in claim 5, the execution cancellation acceptance unit is the sunlight use boiling operation on the execution day when the sunlight utilization boiling operation is executed based on the selection of the execution accepted by the execution selection acceptance unit. After the end time of, the cancellation of the execution or the non-execution of the execution date is not accepted.

Further, according to claim 6, the time change receiving means for individually accepting, for each date, a change to the setting of the start time of the solar-powered boiling operation for each date accepted by the time setting accepting means. Is further included.

Further, in claim 7, the time change reception means is the sunlight use boiling operation on the execution day when the sunlight use boiling operation is executed based on the selection of the execution accepted by the execution selection acceptance means. After the start time of, the change to the start time of the boiling operation using sunlight is not accepted.

Further, in claim 8, the heating control unit is configured such that the time change reception unit performs the solar-powered boiling operation at a reception time earlier than the start time of the solar-powered boiling operation on the execution day. When the change that makes the start time earlier than the reception time is received, the heating means is controlled so as to start the solar-powered boiling operation.

Further, in claim 9, further comprising display means for performing a desired display, and date display control means for controlling the display means so as to display dates corresponding to the plurality of days including a predetermined display date. The execution selection receiving means individually receives the selection of execution/non-execution for each of the plurality of dates when the date is displayed on the display means under the control of the date display control means. is there.

Further, in claim 10, the date display control means is before the first predetermined time at which the power generation in the solar power generation device is assumed to fall from a sufficient state to an insufficient state on the desired day, or Before the timing of execution of boiling operation using sunlight, the date for the plurality of days including the desired day as the display day is displayed, and after the first predetermined time of the desired day, or After the execution timing of the boiling operation using sunlight, the display means is controlled so as to display the dates for the plurality of days after the next day including the next day as the display day. ..

Further, in claim 11, in the time range from a second predetermined time after the end time of the nighttime zone to a third predetermined time earlier than the first predetermined time, the start time of the boiling operation using sunlight is started. Further includes time display control means for controlling the display means so as to display a plurality of start time candidates that can be set as, and the time setting reception means displays on the display means under the control of the time display control means. The setting of the start time by selecting any one of the plurality of start time candidates is accepted individually for each due date.

In the twelfth aspect, the third predetermined time is set such that the time deviation up to the first predetermined time is equal to or longer than the time required for the solar-powered boiling operation.

Further, in claim 13, when the selection of the execution is accepted by the display means for performing a desired display and the execution selection acceptance means, the latest solar light utilization boiling operation is executed based on the selection. Until the day before the execution date, a notice display control means for controlling the display means to display a notice display for giving notice of the execution of the solar light boiling operation and the date of the most recent execution date. And have.

Further, in claim 14, the notice display control means displays the start time of the solar light boiling operation on the latest execution date instead of the date of the latest execution date. The display means is controlled.

Further, in claim 15, the notice display control means performs switching from the display of the date on the display means to the display of the start time at a fourth predetermined time later than midnight in the nighttime zone. Is.

Further, in claim 16, while the solar-powered boiling operation on the execution day of the solar-powered boiling power generation is being executed, an execution display indicating that the solar-lighting boiling power generation is being executed is displayed. It further comprises execution display control means for controlling the display means.

In the seventeenth aspect, the consecutive dates are constituted by two consecutive dates.

According to claim 1 of the present invention, when performing the boiling operation using sunlight by using the electric power from the photovoltaic power generator by controlling the heating means by the heating control means, the operation setting is performed in advance. An execution selection receiving unit and a time setting receiving unit are provided. On the desired day, the user can select execution/non-execution of the solar light boiling operation on and after the next day, and the selection result is accepted by the execution selection acceptance means. Further, when the user selects the execution of the solar-powered boiling operation, the user can set the start time of the solar-powered boiling operation on the execution date, and the setting result is accepted by the time setting accepting means.

At this time, in particular, according to claim 1, the selection of the execution/non-execution and the setting of the start time can be performed over a plurality of consecutive due dates (=consecutive due dates), and the plurality of due dates can be set. The selection and the setting can be performed individually for each date. Thereby, the user, for example, on a desired day prior to the execution day of the solar light boiling operation, in advance, the selection of execution/non-execution of the solar light boiling operation for a plurality of days and the start time on the execution day. The setting and can be done at the same time, and the selection and setting contents can be changed individually for each due date. As a result, the complexity as described above can be eliminated, and the convenience for the user can be improved.

In addition, normally, when performing a boiling operation using sunlight, the amount of boiling water in the boiling operation performed in the nighttime on the day before is subtracted by the amount of boiling water expected in the boiling operation using the sunlight. By doing so, it is possible to reduce the electricity charges during the night boiling. Therefore, whether or not to perform the boiling operation using sunlight must be determined at least the day before the operation. According to claim 2, by not accepting the execution/non-execution of the boiling operation using sunlight on the day, in other words, by accepting only the selection made at least until the day before, the electricity by subtracting the amount of boiling water is reduced. It is possible to reliably control charges.

In addition, usually, the nighttime zone starts from midnight time late on a certain date, changes to the date of the next day at midnight, and then becomes the time zone until the early morning of the next day (for example, depending on the contract content with the electric power company). .. According to claim 3, even before midnight, if the start time for starting the night zone is reached, the selection of whether or not to execute the boiling operation using sunlight is not accepted. By doing so, similarly to the above, it is possible to surely suppress the electricity rate by subtracting the boiling water amount in the boiling operation in the night zone.

Further, according to claim 4, even if the user wants to cancel the selection of the execution/non-execution of the solar-assisted boiling operation once performed by the user due to some circumstances such as the contents of the weather forecast being changed, for example. can do. As a result, the convenience for the user can be further improved.

Further, according to claim 5, at the timing when the solar-powered boiling operation has already been executed by the user's selection of the execution, the control confusion is caused by canceling the selection of the execution. Can be prevented.

Further, according to claim 6, even when the user wants to change the setting of the start time of the solar-powered boiling operation once performed by the user due to some circumstances such as the contents of the weather forecast changing, for example, it is possible to reliably handle the situation. You can As a result, the convenience for the user can be further improved.

Further, according to claim 7, at the timing when the solar-powered boiling operation is already started by the setting of the start time by the user, it is possible to prevent confusion in control due to the change of the start time. Can be prevented.

According to claim 8, unlike the initial intention of the user, in response to the new intention that the user wants to start the solar-powered boiling operation at a timing earlier than the current time, the solar power can be used as quickly as possible. The boiling operation can be started.

Further, according to claim 9, the user performs the solar-lighting boiling operation for each date while watching the dates for a plurality of days displayed on the display unit under the control of the date display control unit. The non-execution choices can be made sequentially. As a result, the selection can be performed by an easy-to-understand and simple operation, and the convenience for the user can be improved.

In addition, the user selects whether execution of the solar light boiling operation is selected or not executed for each date of the plurality of days, how many of the plurality of days have been selected, etc. Can be easily confirmed. As a result, the user can determine whether or not it is necessary to change the selection according to a change in the weather forecast, and can appropriately change the selection as necessary.

Further, for example, even if the irradiation of sunlight is sufficient for power generation during the day, it gradually decreases as it approaches the evening, and becomes insufficient for power generation at a certain time (for example, 17:00). It becomes a state. Therefore, since solar power generation on that day is impossible after that time, it is meaningless to display the date of the day on the display means (displaying the day after the day after that is sufficient). Further, for example, when it is set to execute the solar-powered boiling operation on that day, even after the solar-powered boiling operation is executed, the meaning of displaying the date of the day on the display means is similar to the above. There is no (displaying the day after the day is enough). Therefore, according to claim 10, before the first predetermined time (for example, the above 17:00) (or before the timing when the boiling operation using sunlight is completed), the date for the plurality of days including that day is set. On the other hand, after the first predetermined time (or after the execution timing of the boiling operation using sunlight) after the first predetermined time, the dates for the plurality of days are displayed from the next day of the day. As a result, it is possible to avoid the above-mentioned display that is substantially meaningless and to make the display content easy for the user to understand.

Further, since solar power generation is not performed at least in the night zone, the start time when the solar-powered boiling operation is performed is after the end time of the night zone. Further, as described above, solar power generation is not possible after the first predetermined time, so the start time is before the first predetermined time. Specifically, considering the time required for the solar-powered boiling operation, it is meaningless to set the start time after the time advanced from the first predetermined time by the time required. Therefore, according to claim 11, by the control of the time display control means, the display means is earlier than the first predetermined time (for example, 17:00) from the second predetermined time (for example, 7 o'clock) after the end time of the nighttime zone. A plurality of start time candidates are displayed in the time range (7:00 to 15:00 in the above example) until the third predetermined time (for example, 15:00). It is sufficient for the user to appropriately select the start time from the plurality of candidates, so that it is easy to understand with a simple operation and the convenience can be further improved.

Further, according to claim 12, the time deviation between the third predetermined time and the first predetermined time is secured at least as long as the time required for the boiling operation using sunlight, whereby the above-mentioned substantial It is possible to reliably avoid meaningless display and make the display content easy for the user to understand and use.

Further, according to claim 13, the user surely visually confirms that the execution of the solar-assisted boiling operation is selected and when the solar-assisted boiling operation is performed. You can

In addition, since the latest solar-powered boiling operation execution date can be easily confirmed, the user can determine whether the execution/non-execution selection needs to be changed according to changes in the weather forecast. Can be determined, and the above-described selection change can be appropriately performed as necessary.

Further, according to claim 14, the user can surely visually recognize that it is the day of the boiling operation using sunlight and what time of the day the boiling operation using sunlight starts. ..

In addition, since the start time of the solar-powered boiling operation can be easily confirmed on the day, the user can further change the selection of the execution/non-execution or the selection depending on the change of the weather forecast for each time zone of the day. Whether or not the setting of the start time needs to be changed can be determined to the last minute, and the selection and the start time can be appropriately changed as necessary.

Further, as described above, the setting of the night zone may vary depending on the contents of the contract with the electric power company, and depending on the setting, when considering the break from the day before the execution day to the day of the execution day as described above, it is midnight. There may be cases where the boundaries do not match well. Therefore, according to claim 15, by switching from the date display to the display of the start time at a fourth predetermined time (for example, 1:00 am) later than midnight, the adverse effect can be prevented. You can

Further, according to claim 16, it is possible to surely notify the user that the boiling operation using sunlight is currently being executed. In addition, it is also possible to make the user surely recognize that the start time of the boiling operation using the sunlight on that day cannot be changed.

In addition, in general, the weather forecast often announces the change of the weather according to time zones only for the next two days. In other words, technically, the weather after three days can only be predicted roughly for each day. According to claim 17, in response to this, the consecutive dates are two consecutive dates. That is, the selection of the execution/non-execution of the solar-powered boiling operation and the setting of the start time of the solar-powered boiling operation are separately performed only for two days, the next day and the day after the desired day. To be able to do it. Accordingly, the selection and the setting at the previous date, which is not so significant in view of the technical circumstances described above, can be eliminated, and an easy-to-use apparatus configuration matching the actual situation can be provided.

1 is a system configuration diagram of a photovoltaic power generation device cooperation hot water storage hot water supply system according to an embodiment of the present invention. A graph diagram conceptually showing the temporal behavior of the amount of power generated by photovoltaic power generation and the amount of power consumption of an electric load device when the weather is predicted to be sunny. A graph diagram conceptually showing the temporal behavior of the amount of power generated by photovoltaic power generation and the amount of power consumption of an electric load device when the weather is predicted to be rain or cloudy. Functional block diagram showing the functional configuration of the control device External view showing the detailed configuration of the remote control device The flowchart figure showing the first half part of the control procedure which a control device performs. The flowchart figure showing the latter half part of the control procedure which a control device performs. The flowchart figure showing the detailed procedure of step S200. The flowchart figure showing the detailed procedure of step S300. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the setting screen with which the screen display part of a remote control device is equipped. Date display in the date display section provided on the setting screen of the remote control device, whether date setting is possible to set execution/non-execution of boiling operation using sunlight, whether cancellation of date setting is possible, start time of boiling operation using sunlight Timetable diagram explaining an example of the change of setting changes Date display in the date display section provided on the setting screen of the remote control device, whether date setting is possible to set execution/non-execution of boiling operation using sunlight, whether cancellation of date setting is possible, start time of boiling operation using sunlight Timetable diagram for explaining another example of the change of setting change The figure showing the example of a display of the standby screen with which the screen display part of a remote control device is equipped. The figure showing the example of a display of the screen of other devices with which the screen display part of a remote control device is equipped. Time table diagram showing transition of surplus boiling notice mark, date display part, time display part, and message display displayed on the standby screen of the remote control device

Next, an embodiment of the present invention will be described with reference to FIGS.

<Outline of system configuration>
FIG. 1 shows the system configuration of a hot water supply system including the hot water storage type water heater of the present embodiment. It should be noted that in FIG. 1, a part of signal transmission/reception described later is omitted in order to prevent the illustration from being complicated. In FIG. 1, a hot water supply system 100 according to the present embodiment includes a heat pump hot water storage type hot water supply device 1 installed in a building (a specific power consumption facility) such as a house (not shown), and a power distribution system connected to a commercial power supply 49. A panel 2, a photovoltaic power generation panel 4 installed on the roof of the house, and a photovoltaic power generation device 3 including an inverter 5 for converting the power generated by the photovoltaic power generation panel 4 into an AC power source; It has an electric load device 6 (for example, simply shown as “air conditioner” in FIG. 1) that constitutes a load other than the water heater 1 and is composed of, for example, an air conditioner, a network communication network 8, and a server 9. The network communication network 8 and the server 9 may be omitted. In that case, the display of the network display unit 65 in the remote control device 50 described later is also omitted (see FIG. 5 described later, etc.).

The hot water storage type hot water supply device 1 includes a remote control device 50 (corresponding to operating means), a hot water storage tank 10 for storing hot water, a water supply pipe 11 for supplying water to the bottom of the hot water storage tank 10, and hot water discharge from the top of the hot water storage tank 10. The hot water supply pipe 12, the water supply bypass pipe 13 branched from the water supply pipe 11, the hot water from the hot water supply pipe 12 and the water from the water supply bypass pipe 13 reach the hot water supply set temperature set by the remote controller 50. Mixing valve 14, a hot water supply pipe 15 for supplying hot water to a hot water supply terminal not shown, a hot water supply flow rate sensor 16 for detecting a hot water supply flow rate and outputting a corresponding detection signal, and detecting a hot water supply temperature and outputting a corresponding detection signal. It has a hot water supply temperature sensor 17 and a hot water storage temperature sensor 18 which detects the hot water storage temperature in the hot water storage tank 10 and outputs a corresponding detection signal. A plurality of hot water storage temperature sensors 18 are provided on the side surface of the hot water storage tank 10 at different height positions. Each of the plurality of hot water storage temperature sensors 18 detects a corresponding hot water temperature when a hot water temperature above a predetermined threshold value, which is preset corresponding to the temperature of hot water in a sufficiently heated state, is detected. Is output to the control device 31. As a result, the control device 31 is in a sufficiently heated state in the hot water storage tank 10, based on how many of the plurality of hot water storage temperature sensors 18 output the detection signal. The amount of hot water (that is, the amount of hot water stored) can be detected.

Further, the hot water storage type hot water supply device 1 further includes a heat pump device 19 (corresponding to a heating unit) that heats the hot water in the hot water storage tank 10 to the boiling target temperature. The heat pump device 19 includes a compressor 20 that compresses and conveys a refrigerant into high temperature and high pressure, a water refrigerant heat exchanger 21 that exchanges heat between the high temperature and high pressure refrigerant and water from the hot water storage tank 10, and the water refrigerant. The expansion valve 22 for decompressing and expanding the refrigerant after heat exchange in the heat exchanger 21, the air heat exchanger 23 for exchanging heat between the outside air and the low pressure refrigerant to evaporate the low pressure refrigerant, and the outside air for the air heat exchanger 23. The blower 24 that blows air, the discharge temperature sensor 25 that detects the temperature of the refrigerant discharged from the compressor 20 and outputs a corresponding detection signal to the control device 31, and the detection signal that detects the outside air temperature and outputs the corresponding detection signal. The outside air temperature sensor 30 that outputs to the control device 31.

Further, the hot water storage water heater 1 further connects the control device 31 for controlling the operation of the entire hot water storage water heater 1, the lower portion of the hot water storage tank 10 and the water side inlet of the water refrigerant heat exchanger 21. A heating return pipe 26, a heating return pipe 27 that connects the water side outlet of the water-refrigerant heat exchanger 21 and the upper part of the hot water storage tank 10, and a heating circulation pump 28 provided in the middle of the heating forward pipe 26, The heating return pipe 27 has a boiling temperature sensor 29 which outputs a detection signal to the control device 31. The heating forward pipe 26, the heating return pipe 27, and the heating circulation pump 28 constitute a heating circulation circuit (hereinafter, simply referred to as “heating circulation circuit 26, 27, 28”).

<Boiling operation using sunlight>
In the hot water supply system 100 having the above configuration, when the sunshine conditions are good, the solar power generation device 3 can receive sunlight by the solar power generation panel 4 to generate power. In the hot water storage water heater 1, the heat pump device 19 uses the electric power generated by the solar power generation device 3 according to various settings manually performed by the user (details will be described later), and the heat circulation circuit 26, 27 is used. , 28, the boiling operation of heating the hot water in the hot water storage tank 10 can be performed. On the contrary, when the sunshine condition is not so good, the solar power generation device 3 cannot perform sufficient power generation by receiving sunlight, and therefore the hot water storage water heater 1 supplies the electric power supplied from the commercial power source 49. The boiling operation is performed by using the above.

In order to perform the boiling operation using the electric power generated by the solar power generation as described above, at least the generated power value is somewhat large (specifically, the power value supplied to the hot water storage water heater 1, that is, the generated power value. The surplus electric power value obtained by subtracting the load electric power consumption value consumed by the electric load device 6 excluding the hot water storage type hot water supply device 1 is somewhat large, which will be described later. This will be described with reference to FIGS. 2 and 3.

<Example of power behavior>
In FIG. 2, the horizontal axis is a time axis in which time is ticked like “0:00”, “1:00”,..., “23:00”, “24:00”, and the vertical axis is electric power. When the amount [kWh] is taken, it represents the amount of power generated by the solar power generation device 3, the load power consumed by the electric load device 6, and the power consumption per unit time of the hot water storage water heater 1. 3 is a graph conceptually showing an example of the behavior of the device power consumption.

As shown in FIG. 2, this example is an example when the weather is fine. That is, as shown by the solid line graph in the figure, the amount of power generated by the solar power generation device 3 changes at almost 0 [kWh] from 0:00 to 6:00, but at sunrise (6:00 to 6:00). It gradually increases with 7:00), 0.2 [kWh] at 7:00, 1.0 [kWh] at 8:00, 1.5 [kWh] at 8:30, and then 9: The time reaches 1.8 [kWh] at 00, 2.5 [kWh] at 10:00, 3.2 [kWh] at 11:00, and reaches a peak at 3.3 [kWh] at 12:00. After that, the amount of power generated by the solar power generation device 3 gradually decreases with the shade of the sun, reaching 3.2 [kWh] at 13:00, 2.5 [kWh] at 14:00, and then 15:00. At 1.8 [kWh], 15:30 at 1.5 [kWh], 16:00 at 1.0 [kWh], 17:00 at 0.2 [kWh], and sunset (17:00 to 17:00). By 18:00), after 18:00, it will be almost 0 [kWh] until 24:00.

On the other hand, as shown by the gray bar graph in the figure, the load power consumption of the electric load device 6 is 0.5 [kWh] throughout the day from 0:00 to 24:00. As a result, the value of the surplus power represented by "the amount of power generated by the photovoltaic power generator 3"-"the amount of power used by the load of the electric load device 6" becomes 0 at 8:00 for the first time, as shown in FIG. 0.5 [kWh] occurs, 1.0 [kWh] at 8:30, 1.3 [kWh] at 9:00, 2.0 [kWh] at 10:00, 2.7 [kWh] at 11:00. It becomes the maximum at 2.8 [kWh] at 12:00 after passing [kWh]. After that, it gradually decreases to 2.7 [kWh] at 13:00, 2.0 [kWh] at 14:00, 1.3 [kWh] at 15:00, and 1.0 [kWh] at 15:30. , 16:00 becomes 0.5 [kWh].

In contrast to the above time variation of the surplus power, in this example, the device power consumption when the hot water storage water heater 1 is operated is 1 [kWh] per unit time. As a result, for example, when the user can recognize the above-mentioned behavior by a known information source such as weather forecast/meteorological information for the next day, for example, “excess power”≧“device power consumption of hot water storage water heater 1” In the time zone from 8:30 to 15:30 (hereinafter appropriately referred to as “boilable time zone”), it is determined that the hot water storage water heater 1 can be operated by the surplus power. You can In FIG. 2, as a result of such a determination made by the user, the boiling operation of the hot water storage water heater 1 is from 11:00 to 13:00 (hereinafter referred to as “boiling as appropriate”) of the boilable time period. It is shown that it is set to be executed in the “upper time zone” (details will be described later) (see black bar graph).

<Other examples of power behavior>
Note that the example shown in FIG. 2 is an example in which the weather is fine as described above (as a result, power generation by the solar power generation is possible). On the other hand, FIG. 3 shows an example where the weather is rainy or cloudy (there is almost no solar radiation from the sun). In this case, as shown by the solid line graph in the figure, the amount of power generated by the photovoltaic power generator 3 changes from 0:00 to 8:00 at almost 0 [kWh], and slightly increases with sunrise. However, after going through 0.1 [kWh] at 9:00, 0.3 [kWh] at 10:00, 0.5 [kWh] at 11:00, and 0.6 [kWh] at 12:00. The peak at 13:00 remains at about 0.7 [kWh]. After that, the power generation amount in the solar power generation device 3 is 0.6 [kWh] at 14:00, 0.5 [kWh] at 15:00, 0.3 [kWh] at 16:00, and 17:00. Is 0.1 [kWh], and after 18:00, it is almost 0 [kWh] until 24:00. As a result, the value of the surplus power represented by "the amount of power generated by the photovoltaic power generator 3"-"the amount of power used by the load of the electric load device 6" is, as shown in FIG. It occurs only slightly up to 00, and its maximum value remains at about 0.2 [kWh]. In such a case, the user can determine that the boiling operation of the hot water storage water heater 1 with the surplus power is impossible. In FIG. 3, as a result of the determination made by the user, the hot water storage water heater 1 is supplied with electricity from the commercial power source 49 without using the power generated by the solar power generation, and as a result, the unit price of electricity is low at night as usual. The boiling operation is executed (hereinafter appropriately referred to simply as "night boiling") during an appropriate time period (3:00 to 7:00 in this example) of (23:00 to 7:00 in this example). Is set (see the black bar graph, details will be described later).

<Functional configuration>
In order to smoothly perform the above-described boiling operation using solar power generation, in the present embodiment, the control device 31 is provided with each functional unit shown in FIG. That is, as shown in FIG. 4, in the control device 31, the surplus boiling-up executing unit 33A, the surplus boiling-up setting unit 33C, the surplus boiling-up control unit 40, the surplus boiling-up capacity determining unit 37, and the use. A hot water amount learning unit 34, a required heat amount determination unit 35, a nighttime boiling capacity calculation unit 36, a corrected nighttime boiling capacity calculation unit 38, a nighttime boiling control unit 39, and a daytime boiling increase control unit 42 are provided. ing. Details of each of these functional units will be described later in detail.

The control device 31 also includes a display control unit 33B. The user, for example, obtains publicly known weather information (for example, weather forecast information, sunshine duration information, etc., which is acquired from the server 9 and is displayed on the remote control device 50 under the control of the display control unit 33B, hereinafter simply referred to as “weather information”). Alternatively, the publicly known weather information displayed on an information terminal (not shown) such as a smartphone or a television outside this hot water supply system is confirmed. Then, based on the meteorological information, it is determined whether or not the boiling operation using the electric power generated by the photovoltaic power generation (hereinafter, appropriately referred to as "boiling operation using solar light") can be performed in the target predetermined continuous period. To do. The continuous period is, for example, the next day of the desired day (hereinafter appropriately referred to simply as “next day”) on which the control procedure according to the flow shown in FIGS. “Next two days”), and in this example, the total number of days including the next day and the second day is two.

That is, the user, for example, estimates the behavior of the generated power amount based on the weather information, and the magnitude relationship of the load use power with the estimated generated power amount, resulting in the surplus. Estimate how the time variation of electric power will be. Then, the user further estimates what magnitude relationship the device usage power has with the estimated surplus power amount, and if the surplus power amount is sufficiently larger than the device usage power, the solar power utilization It is determined that the upper operation can be performed, otherwise it is determined that the solar-powered boiling operation cannot be performed, and various corresponding settings are manually performed using the remote control device 50 (details will be described later). Whether or not to make such a determination sequentially depends on the user. For example, the weather information may indicate that the weather is fine, the maximum temperature is what, and the like. In some cases, settings may be made.

<Remote control device>
The detailed configuration of the remote controller 50 is shown in FIG. In FIG. 5, the remote control device 50 includes a screen display unit 60 (corresponding to a display unit) and a "floor" for automatically performing hot water filling from the hot water storage tank 10 into the bathtub, warming of hot water after hot water filling, and the like. An "automatic" switch 71, a "call" switch 72 for making a telephone call in the bathroom, a speaker 73, +/- side operation settings of various numerical values such as the hot water supply temperature, and a cursor in the screen display unit 60. A cross key 74 for performing upward, leftward, downward, and lateral movement operations, a "menu/decision" switch 75, and the boiling operation by manual operation to perform the boiling operation to store the hot water in the hot water storage tank 10 by a predetermined amount. The "tank hot water" switch 76 for increasing the temperature and the automatic hot water adding function for boiling up the daytime hot water increasing capacity when the hot water storage amount in the hot water storage tank 10 decreases below the predetermined threshold value. Various types including a description of a plurality of operation modes (detailed description is omitted) such as a "bath addition pause" switch 77 that is manually operated (only on the day of operation) and a prepared "eco-operation" An “eco guide” switch 78 for displaying a guide on the screen display unit 60 and a “return” switch 79 for returning the display screen displayed on the screen display unit 60 to the previous display screen. Have

The screen display unit 60 is configured to be able to switch a plurality of display screens, each of which displays a predetermined content. The illustrated screen 60A is displayed in the standby state (hereinafter, simply referred to as "standby screen 60A" as appropriate). On this standby screen 60A, a date and time display section 61 displaying the current date and time (22:30 on Friday, May 31 in this example), and the set temperature of the hot water in the bathtub (40° C. in this example) , A hot water temperature display unit 63 that displays the hot water supply set temperature (40° C. in this example), and a hot water storage amount display unit 64 that displays the hot water storage amount in the hot water storage tank 10. The network display unit 65 indicating that the server 9 is connected to the server 9 via the network communication network 8 and which of the plurality of operation modes is selected (in this example, “automatic energy saving” operation. Details will be described later). ) Indicating the driving mode.

The hot water storage amount display unit 64 displays the hot water storage amount in the hot water storage tank 10 corresponding to the detection result of the hot water storage temperature sensor 18 under the control of the display control unit 33B. In the illustrated example, the hot water storage amount display unit 64 can display the hot water storage amount in five stages by five display elements 64A to 64C. That is, when almost all of the hot water storage tank 10 is the hot water in the fully heated state (the hot water storage amount is full), all the display elements 64A, 64B, 64C, 64D, 64E is lit and displayed. On the contrary, when the hot water storage amount in the hot water storage tank 10 is almost empty, all the display elements 64A, 64B, 64C, 64D, 64E are extinguished, and as the hot water storage amount gradually increases from this state. The display elements 64B, 64C, 64D, and 64E are displayed in this order from the lower display element 64A. The illustrated example shows a state in which the amount of stored hot water is about ⅕ of the total capacity in the hot water storage tank 10, and only the display element 64A at the bottom of the display elements 64A to 64E is lit and displayed. At the same time, the remaining four display elements 64B, 64C, 64D, 64E are extinguished (indicated by broken lines in the figure for clarity).

Here, in the example shown in FIG. 5, the amount of hot water stored in the hot water storage tank 10 is 1/full by the amount of hot water used for housework, bathing, etc. (see the time display at 22:30 on the date/time display unit 61). It shows a case where the hot water storage amount is reduced to about 5 (only the lowermost display element 64A of the hot water storage amount display unit 64 is turned on).

<Control flow>
As described above, in the present embodiment, when the sunshine condition is good, the boiling operation can be performed during the boiling possible time period by using the electric power generated by the solar power generation device 3 ( (See FIG. 2). When the sunshine condition is not so good, the boiling operation is performed by using the electric power supplied from the commercial power source 49 in the nighttime zone (23:00 to 7:00 in this example) where the unit price of electricity is low. Perform (see FIG. 3). In order to realize this method, the control procedure executed by the control device 31 will be described with reference to the flowcharts of FIGS. 6, 7, 8, and 9. As described above, the day after the date on which this flowchart is executed is simply referred to as "the next day", and the day on which this flowchart is executed is hereinafter simply referred to as "the current day". ..

First, in FIG. 6, in step S2, the control device 31 initializes to 0 the non-boiling flag F indicating that the solar-powered boiling operation is impossible, for example, by the surplus boiling execution unit 33A. ..

Then, in step S5, the control device 31, for example, by the surplus boiling execution unit 33A, the nighttime zone where the unit price of electricity is low (in this example, from 23:00 on the day to 7:00 on the next day. However, a contract with the power company is made. It is determined whether or not the start time (depending on the content) (23:00 in this example. The same applies hereinafter). The determination is not satisfied until the night zone start time (S5: NO), the process waits in a loop, and the determination is satisfied when the night zone start time is reached (S5: YES), and the process proceeds to step S25.

In step S25, the control device 31 previously sets the required heat quantity based on the daily learned hot water amount learned in the used hot water amount learning unit 34 corresponding to the detection results of the hot water supply flow rate sensor 16 and the hot water supply temperature sensor 17 in advance. The deciding unit 35 decides (calculates) the required heat quantity on the next day by using a known method using an average, a standard deviation, or the like. The required heat amount may be calculated as a required hot water amount converted into a predetermined temperature (for example, 43[°C]).

After that, in step S30, the control device 31 is predicted by the required heat amount determination unit 35 by a known method in accordance with the required hot water amount determined in step S25 and the detection result of the outside air temperature sensor 30, for example. The boiling target temperature is determined from the outside air temperature of the next day (or other conditions such as the feed water temperature). The boiling target temperature is set as low as possible, for example, between 65[° C.] and 75[° C.], but especially when the required hot water amount is large, the outside air temperature is low, and the feed water temperature is When it is low (compared to other cases), it is set higher.

Then, in step S35, the control device 31 divides the required heat quantity determined in step S30 by the night-time boiling capacity calculation unit 36 by the temperature difference between the boiling target temperature and the feed water temperature to obtain the necessary amount. Convert to capacity and use as the night boiling capacity when performing night boiling. When the required capacity calculated in this way exceeds the capacity of the hot water storage tank 10, the capacity of the hot water storage tank 10 may be the night boiling capacity. Then, it moves to step S40.

In step S40, the control device 31 is set (selected) by the user's operation via the remote controller 50 by the surplus boiling execution unit 33A to execute (select) execution of the solar light boiling operation (details will be described later). ) It is determined whether or not. When the execution is not selected (the non-execution is selected), the determination is not satisfied (S40: NO), and the process proceeds to step S46 described later. If the execution is selected, the determination is satisfied (S40: YES), and the process proceeds to step S42.

In step S42, the control device 31 is set (selected) by the user's operation via the remote control device 50 by the surplus boiling setting unit 33C (details will be described later). A surplus boiling start time (starting at 11:00 is set as an example) is acquired. Then, it moves to step S45.

In step S45, the control device 31 causes the hot water storage water heater 1 to have a predetermined heating capacity of the heat pump device 19 based on the surplus boiling start time determined in step S42 by the surplus boiling capacity determination unit 37. The excess boiling capacity for boiling up to the boiling target temperature is determined by In this example, this surplus boiling capacity is set to a fixed value (for example, 100 L), but it may be variably set by the user by an appropriate operation. When the surplus boiling capacity is set to the fixed value, it has the following technical significance. That is, when the method of setting the variable by the user, for example, the user predicts (determines) that the sunshine conditions of the next day are very good and considerably increases the surplus boiling capacity by the boiling operation using sunlight (for example, the hot water storage tank (Most of the capacity within 10) may be set. In this case, since the nighttime boiling capacity in the nighttime zone is extremely small due to the large setting, most of the hot water storage tank 10 becomes unheated water on the morning of the daylighting boiling operation using sunlight. As a result, for example, in the morning of the day (before the solar-powered boiling operation starts), if hot water is to be used for temporary housework, bathing, showering, etc., the hot water storage tank 10 may run out of hot water. .. Alternatively, unlike the above forecast, if the sunshine conditions on the day were not so good, the amount of heating water generated by the boiling operation using sunlight is insufficient, and after the evening of the day when the hottest water is consumed most. Similarly to the above, there is a possibility that the amount of hot water stored in the hot water storage tank 10 may become insufficient.

On the other hand, as described above, for example, when the surplus boiling capacity is set to a fixed value, the numerical value thereof is set to a certain value (for example, 100 L or the like) and set as a limit value for surplus boiling, so that the nighttime zone The above-mentioned night boiling capacity can be at least the total volume in the hot water storage tank −100 L (when the total volume is 200 L, 200−100=100 L). As a result, unlike the above, the minimum amount of hot water storage can be ensured even in the morning of the day (before the solar-powered boiling operation starts), so avoiding the harmful effects of the insufficient amount of hot water storage. You can Also, if this fixed value is too small, there will be a lot of waste in terms of effective utilization of solar power generation. As described above, for example, by setting the capacity to 100 L, while effectively balancing the nighttime boiling capacity in the nighttime zone and the surplus boiling capacity in the daytime zone, the effective use of power generation by the sunlight and the hot water storage amount It is possible to avoid both adverse effects due to shortage.

Then, in step S50, the control device 31 subtracts the surplus boiling capacity determined in step S45 from the nighttime boiling capacity calculated in step S35 by the corrected nighttime boiling capacity calculation unit 38. Then, the corrected nighttime boiling capacity that actually boils in the nighttime zone is calculated. Then, it moves to below-mentioned step S55.

On the other hand, in step S46, in which the determination in step S40 is not satisfied, the control device 31 sets the boiling impossible flag F to the solar light utilization boiling operation by the corrected night boiling capacity calculation unit 38, for example. It is set to 1 indicating that it is impossible. Then, it moves to step S55.

In step S55, the controller 31 controls the night boiling control unit 39 to determine the amount of hot water that can be regarded as hot water in the hot water storage tank 10 in a sufficiently heated state based on the detection results of the hot water storage temperature sensors 18. The capacity (remaining hot water capacity) is calculated.

After that, in step S60, the control device 31 causes the night boiling control section 39 to calculate the start time of night boiling. That is, when the determination in step S40 is satisfied (S40: YES) and the process proceeds to step S60 through steps S42 to S50 and step S55, the night-time boiling control unit 39 calculates it in step S50. The boiling time required to boil the volume obtained by subtracting the remaining hot water volume calculated in step S55 from the corrected nighttime boiling volume is calculated, and the boiling time is calculated at the end time of the night zone (for example, 7:00). The nighttime boiling start time is calculated to be suitable for completion (for example, by subtracting the required boiling time from the nighttime end time).

On the other hand, if the determination in step S40 is not satisfied (S40: NO) and the process proceeds to step S60 via steps S46 and S55, the nighttime boiling control unit 39 calculates the nighttime. The boiling time required to boil the volume obtained by subtracting the remaining hot water volume calculated in step S55 from the boiling volume is calculated, and boiling is completed at the end time of the night zone (for example, 7:00). A proper night boiling start time is calculated (for example, by subtracting the required boiling time from the night end time).

Then, the process proceeds to step S62 of FIG. 7, and the control device 31 determines whether the time (current time) at this time is the nighttime boiling start time calculated in step S60 by the nighttime boiling control unit 39. judge. If it is not the nighttime boiling start time, the determination is not satisfied (S62: NO), the process waits in a loop, and if the current time is the nighttime boiling start time, the determination is satisfied (S62: YES), and the process proceeds to step S200. Move.

In step S200, the control device 31 performs the nighttime boiling process by the nighttime boiling control unit 39. The detailed procedure of this step S200 is shown in FIG.

In FIG. 8, first, in step S215, the control device 31 causes the night boiling control unit 39 to perform the heat pump device 19 (specifically, the compressor 20, the blower 24, and the heating device) of the hot water storage water heater 1. By controlling the circulation pump 28 etc., the water taken out from the lower part of the hot water storage tank 10 is heated to the boiling target temperature determined in step S30 and sequentially laminated from the upper part of the hot water storage tank 10. Start.

After that, in step S216, the control device 31 causes the night boiling control unit 39 to start the night boiling operation as described above, and then, the corrected night boiling capacity calculated in step S50 (or step). When the determination in S40 is not satisfied, it is determined whether or not boiling up of the nighttime boiling capacity calculated in step S35 is detected by the hot water storage temperature sensor 18. If the corrected night boiling capacity (or night boiling capacity) is not being boiled, the determination is not satisfied (S216: NO), and the routine proceeds to step S218.

In step S218, the control device 31 controls the heat pump device 19 by the nighttime boiling control unit 39, and stops the nighttime boiling operation started in step S215. At this time, unheated water remains in the lower part of the hot water storage tank 10 by the same volume as the surplus boiling-up volume calculated in step S45 (when the determination in step S40 is satisfied). Then, it returns to FIG. 7 and moves to step S71.

In step S71, the control device 31 determines whether or not the boiling impossible flag F is 1, that is, whether or not the solar power use boiling operation by the surplus power is not selected. If F=1, the determination is satisfied (S71: YES), and the routine proceeds to Step S96 described later. If F=0, the determination is not satisfied (S71: NO), and the process proceeds to step S72.

In step S72, the control device 31 determines whether the end time of the nighttime zone (7:00 in this example) has come. If it is not the nighttime end time, the determination is not satisfied (S72: NO) and the process waits in a loop, and if it is the nighttime end time, the determination is satisfied (S72: YES), and the process proceeds to step S300.

In step S300, the control device 31 performs the surplus boiling-up process by the surplus boiling-up control unit 40. The detailed procedure of this step S300 is shown in FIG.

In FIG. 9, first in step S320, the control device 31 causes the surplus boiling-up control unit 40 to determine the time (current time) at this point in time to start the solar-powered boiling operation determined in step S42 (excessive surplus). The boiling start time, which is 11:00 in the above example, is determined. The determination is not satisfied until the surplus boiling start time comes (S320: NO), and the process waits in a loop. If the surplus boiling start time has come, the determination is satisfied (S320: YES), and the routine goes to Step S322.

In step S322, the control device 31 causes the surplus boiling control unit 40 to perform the heat pump device 19 of the hot water storage water heater 1 (specifically, the compressor 20, the blower 24, the heating circulation pump 28, etc.). Control, and heat the water taken out from the lower portion of the hot water storage tank 10 to the boiling target temperature determined in step S30 and sequentially stack the water from the upper portion of the hot water storage tank 10, using a solar boiling operation (excessive boiling). Operation).

Then, in step S324, the control device 31 boiles the surplus boiling capacity calculated in step S45 after the solar-powered boiling operation is started by the surplus boiling control unit 40 as described above. Is determined by the hot water storage temperature sensor 18. If the surplus boiling capacity has been boiled, the determination is satisfied (S324: YES), and the routine goes to Step S326.

In step S326, the control device 31 controls the heat pump device 19 by the surplus boil-up controller 40, and stops the surplus boil-up operation started in step S322. Then, it returns to FIG. 7 and moves to step S96.

In step S96, the control device 31 causes the daytime boiling control section 42 to finish the time (current time) at the end of the daytime zone (for example, 7:00 to 23:00) (for example, 23:00). Is determined. If it is the daytime end time, the determination is satisfied (S96: YES), the process returns to step S2 shown in FIG. 6, and the same procedure is repeated. If it is not the daytime end time, the determination is not satisfied (S96: NO), and the routine goes to Step S92.

In step S92, the control device 31 determines by the daytime boiling increase control unit 42, for example, whether or not the hot water storage temperature sensor 18 at the uppermost portion of the hot water storage tank 10 has dropped to a temperature equal to or lower than a predetermined hot water outbreak temperature. If the temperature is higher than the hot water runout dangerous temperature, the determination in step S92 is not satisfied (S92: NO), the process returns to step S96 and the same procedure is repeated. If the temperature is below the hot water danger temperature, the determination at step S92 is satisfied (S92: YES), it is considered that the hot water is out, and the process proceeds to step S94.

In step S94, the control device 31 controls the heat pump device 19 by the daytime boiling increase control unit 42 to perform a fixed amount boiling operation for a predetermined time (for example, 1 hour) for eliminating the hot water outage. Then, the process returns to step S96 and the same procedure is repeated.

<Characteristics 1 to 1 of this embodiment> Setting screen of remote control device>
In the basic configuration and operation described above, one of the features of the present embodiment is the mode of setting and display on the remote control device 50 for performing the solar-powered boiling operation. The details will be described below step by step.

As described above with reference to FIG. 5, the screen display unit 60 of the remote control device 50 is always in the standby state, and the standby screen 60A is displayed. By operating the “menu/decision” switch 75 from this state, the display of the screen display unit 60 shifts to a main menu screen (not shown), and an appropriate operation of the “menu/decision” switch 75 and the like is performed. As a result, the screen shifts to the setting screen 60B shown in FIG.

In this setting screen 60B, a plurality of operation modes (normal "operation mode" and "solar mode" in this example) of the hot-water storage water heater 1 are selectably displayed, a message display section 162, and ,have.

The "solar mode" displayed on the operation mode display unit 161 is a mode for performing the solar-powered boiling operation, and the user selects this mode when the sunshine conditions are good as described above. As a result, the hot and cold water in the hot water storage tank 10 can be heated using the electric power generated by the solar power generation device 3. The "operation mode" is set by selecting either an "auto-energy saving" mode in which the required heat amount is minimized or an "auto-energy" mode in which the required heat amount is larger than in the "automatic energy-saving" mode. be able to. The message display section 162 displays a message "The operation mode can be changed according to the amount of hot water used" corresponding to the difference between the two modes in the "operation mode". ..

In order to select the solar mode from the state shown in FIG. 10A, the user operates the cross key 74 downward to move the cursor K in the screen downward by one step. ). As shown in FIG. 10B, on the setting screen 60C, the cursor K is moved to the position of "solar mode" in the operation mode display portion 161 in response to the operation. In response to this, the message display section 162 displays the message "Solar mode will be set. Please set before starting the night zone."

FIG. 11A shows a state in which the user has performed a determination operation using the “menu/determination” switch 75 from the state shown in FIG. 10B. As shown in FIG. 11A, the setting screen 60D includes a date display portion 163 that displays a date on which execution/non-execution of the solar-powered boiling operation can be set, and a setting content display portion 164. Have

The date display portion 163 displays dates (=date notation) for a plurality of days (two days in this example) including a predetermined display date. On the operation day when the above-described operation is performed on the remote control device 50, if the operation timing is before 17:00, the display day is the operation day, and if it is after 17:00, the display day is the operation day. This is the day after the operation day (see also FIG. 16A described later). FIG. 11A shows a case where the remote control device 50 is operated after 17:00 on September 14, and the date display portion 163 displays the next day of September 14 ( Dates for two days are displayed, namely September 15 (Saturday), which is the display date in this case), and September 16 (Sunday), which is the next day. At this time, 17:00 is an example of the time when the solar power generation device 3 can be regarded as the limit for maintaining the sufficient power generation (in other words, the time when the power generation is assumed to fall from the sufficient power supply state to the insufficient power generation state). Yes, and corresponds to the first predetermined time in each claim. In this example, the cursor K is positioned on September 15th of those two days (September 15th is selected). Although not shown, at a time earlier than 17:00 on September 14, the date display unit 163 displays the operation date September 14 (Friday, which corresponds to the display date in this case). Then, the date for two days, that is, the next day, September 15th (Saturday), is displayed (see FIG. 16A described later).

The setting content display unit 164 displays the "solar mode" indicating that the solar-powered boiling operation is in a solar mode that can be executed, and the date when the cursor K is located in the solar-powered boiling operation. Notation of "Yes" (when execution is set) or "Not" (when non-execution is set), which indicates that either execution or non-execution is set, A "start" notation indicating the operation start time, a notation of the start time (if set) or a "-" notation (if not set), and the like are displayed when the upper operation is executed. In the illustrated example, in correspondence with the setting of non-execution of the solar-powered boiling operation, in addition to the “solar mode” and the “start” notation, the “not” notation and the “−” notation are It is displayed.

In the present embodiment, as described above also in step S40 described above, the solar-powered boiling operation (in other words, operation in the solar mode; hereinafter the same) is executed for each date displayed on the date display portion 163. Non-execution can be set individually. FIG. 11B shows a state in which the user has performed a decision operation using the “menu/decision” switch 75 with the cursor K shown in FIG. 11A to perform the setting on September 15. As shown in FIG. 11(b), in this setting screen 60E, a message display section 165 in which a message “Set operation on 9/15 (Sat.)” is displayed, and the setting of FIG. 11(a). A setting content display section 166 corresponding to the content display section 164 is provided. In the setting content display unit 166, the same “solar mode” notation, “do” notation and “not” notation, “start” notation and “−” notation, and the like are displayed. In addition, in this state, the cursor K is located in the “not” notation of the “do” and the “not” notation, and the selection using the solar power boiling operation is not performed (that is, non-execution). Is becoming

From the state shown in FIG. 11B, in order to select the execution of the boiling operation using sunlight, the user operates the cross key 74 once upward to move the cursor K in the screen upward. The state is shown in FIG. As shown in FIG. 12A, in the setting screen 60F, the cursor K is moved to the “do” notation that indicates the execution of the solar-powered boiling operation in response to the operation.

From the state shown in FIG. 12A, in order to set the start time of the boiling operation using sunlight, the user operates the cross key 74 once to the right to move the cursor K to the right in the screen. FIG. 12(b) shows the state in which this is done. As shown in FIG. 12B, in this setting screen 60G, the cursor K is located at the "start" notation corresponding to the operation.

FIG. 13A shows a state in which the user has performed a determination operation using the “menu/determination” switch 75 from the state shown in FIG. 12B. As shown in FIG. 13A, on the setting screen 60H, a list of start time candidates that can be set as the start time is displayed. Specifically, from a second predetermined time (for example, 7:00 in this example, not shown) after the end time of the night zone (7:00 in the above example), a predetermined third predetermined time (in this example, In the time range up to 15:00 in the figure, a plurality of start time candidates "7:00", "8", "9", "10", "11", "12:00", "13:00", "14:00", " 15:00" is displayed (partly not shown). Note that the original setting screen 60H is not displayed (for example, see FIG. 12B), instead of a method of displaying a list of start time candidates in a pop-up format or an interrupt window format that covers the setting screen 60H as illustrated. By operating the cross key 74 up or down as it is, the start time candidates “7 o'clock” “8 o'clock” “9 o'clock” “10 o'clock” “11 o'clock” “12” are displayed instead of the “-” notation on the screen. "Hour", "13:00", "14:00", and "15:00" may be sequentially displayed one by one. The third predetermined time is preset to a time earlier than the first predetermined time (17:00 in the above-mentioned example), and in this example, the third predetermined time is set to the first predetermined time (17:00). The time deviation of is set to be equal to or longer than the time required for the boiling operation using sunlight. In the present embodiment, as described above, the surplus boiling-up capacity that is boiled in the solar-lighting boiling operation is fixed to 100 L, and it is expected that the time required to boil this capacity is about 2 hours. Therefore, the third predetermined time is set to 15:00, which is two hours before the first predetermined time (17:00), with the time deviation being 2 hours. In the setting screen 60H, a start time candidate (for example, "12:00") that is appropriately determined in advance may be displayed as a state selected by default. Alternatively, the start time set at the previous time may be displayed as the state selected by default.

FIG. 13B shows a state in which the user has set (selected) the start time at 11 o'clock from the state shown in FIG. 13A by operating the cross key 74 and the “menu/decision” switch 75. .. As shown in FIG. 13B, in this setting screen 60I, in the setting content display unit 166, the above-mentioned “solar mode” notation, “do” notation, and “start” corresponding to the above-described operation. And the "11 o'clock" notation (instead of the "-" notation) indicating that the solar-powered boiling operation is started at 11:00.

When the user operates the “menu/decision” switch 75 in the state shown in FIG. 13B, the display on the screen display unit 60 returns to the setting screen 60D shown in FIG. 11A. (However, the "not" notation is displayed instead of the "do" notation, and the "-" notation is displayed at the "11 o'clock" notation. At the time of this operation, a voice such as "set" or "setting on September 15 is completed" may be output from the speaker 73.

The setting for executing the solar-powered boiling operation on September 15 corresponding to the above operation, and the setting for setting the start time to 11:00 are described in step S40 and step S42. As described above, the surplus boil-up execution section 33A and the surplus boil-up setting section 33C are accepted, and are reflected in the above-described control after step S40 and step S42 based on the setting contents. That is, the surplus boiling-up execution unit 33A functions as an execution selection receiving unit described in each claim, and the surplus boiling-up setting unit 33C functions as a time setting receiving unit described in each claim. Further, as a result, the surplus boiling-up control unit 40 that executes the surplus boiling-up process in step S300 functions as the heating control unit according to each claim.

With the setting screen 60D displayed, the user can perform various settings on September 16 by the same method as the setting on September 15 described above. That is, when the user operates the cross key 74 once downward to move the cursor K in the screen downward, as shown in FIG. 14A, the same date display portion 163 and setting content display portion 164 as described above are displayed. A setting screen 60J including the above is displayed on the screen display unit 60.

When the user operates the "menu/decision" switch 75 in this state, a message "Set operation on 9/16 (day) as above" is displayed as shown in FIG. 14B. A setting screen 60K including a message display unit 165 and a setting content display unit 166 is displayed. Thereafter, in the same manner as described above, the user operates the cross key 74 once upward to move the cursor K to “do” as shown in the setting screen 60L of FIG. 15A, and further press the cross key 74. FIG. 15 shows a state in which the cursor K is moved to the right and the “menu/decision” switch 75 is used to make a decision operation, and the start time is set (selected) from a list of start time candidates (not shown) similar to the above. It shows in (b).

As shown in FIG. 15B, on the setting screen 60M, the above-mentioned "solar mode" notation, "do" notation, and "start" are displayed on the setting content display unit 166 in correspondence with the operations so far. The notation and the notation indicating the start time of the solar-powered boiling operation (in this example, “14:00” corresponding to the start time of 14:00) are displayed. Similarly to the above, by operating the “menu/decision” switch 75 in the state shown in FIG. 15B, the display of the screen display unit 60 displays the setting screen 60D shown in FIG. 11A. Return to. At the time of this operation as well, similarly to the above, the speaker 73 may make a voice such as "set" or "setting on September 16 is completed".

Note that, similarly to the above, the setting for executing the solar-powered boiling operation on September 16 corresponding to the above operation, and the setting for the start time thereof to 14:00 are the excess boiling execution unit 33A. And is received by the surplus boiling-up setting unit 33C, and is reflected in the control after Step S40 and Step S42.

Further, the screen transition of the screen display unit 60 shown in FIGS. 5 and 10 to 15 described above is performed by the control of the display control unit 33B. That is, the display control unit 33B functions as a date display control unit and a time display control unit described in each claim.

<Timetable showing various processes>
An example of the date notation for a plurality of days (two days in this example) displayed on the date display unit 163 described in the setting screens 60B to 60M displayed on the screen display unit 60 of the remote control device 50, FIG. 16A shows the time table shown in FIG.

<Date display>
As described above, the date display portion 163 displays dates for a plurality of days including a predetermined display date, and if the operation timing of the remote controller 50 is before 17:00, the display date is the operation date. On the other hand, if it is 17:00 or later, the display date is the day after the operation date. Therefore, as shown in FIG. 16A as an example, both days “9/14” and “9/15” are displayed in the date display portion 163 before 17:00 on September 14 (Friday). It Then, after 17:00 on September 14th (Friday), both dates of “9/15” and “9/16” will be displayed on the date display portion 163, and September 15th (Saturday) Until 17:00, the display contents are displayed. Then, after 17:00 on September 15th (Saturday), both the dates of “9/16” and “9/17” will be displayed on the date display portion 163 in the same manner, and September 16th ( Until 17:00 (Sunday), this display content is displayed. After that, after 17:00 on September 16th (Sunday), both days of “9/17” and “9/18” will be displayed on the date display portion 163 as well. The display mode is repeated.

<Whether each date can be set>
On the other hand, corresponding to the date display on the date display portion 163 shown in FIG. 16A, the "menu/decision" switch 75 is operated while the cursor K is positioned on the date display. FIG. 16(b) of the time table shown in FIG. 16 shows an example of whether or not the setting of execution/non-execution of the solar-powered boiling operation (operation in solar mode) (selection of “Yes” or “No”) Shown in.

As described above with reference to FIG. 16A, before 17:00 on September 14th (Friday), both days of “9/14” and “9/15” are displayed in the date display portion 163. It However, at that time, of the two days displayed on the date display portion 163, the execution/non-execution setting (“menu/ The "decision" switch 75) cannot be performed (=in other words, it is not accepted by the surplus boiling-up execution portion 33A. The same applies hereinafter). For "9/15" which is the next day of the operation day, execution/non-execution setting (decision operation of the "menu/decision" switch 75 with the cursor K positioned) can be performed as described above.

Further, as described above, after 17:00 on September 14 (Friday), the date display portion 163 displays both the next day "9/15" and the next day "9/16". To be done. Then, after 17:00 and before 23:00 (which is the start time of the nighttime zone), the execution/non-execution setting is performed as described above for the both days displayed on the date display unit 163 ( The "menu/decision" switch 75 can be determined with the cursor K positioned. However, after 23:00 on September 14th (Friday), the execution/non-execution setting (the "menu/decision" switch when the cursor K is located) is set for "9/15" which is the next day. It is no longer possible to perform the decision operation (75).

After that, when the date changes and it becomes Saturday, September 15, as described above, until 17:00, both the days of "9/15" and "9/16" are continuously displayed on the date display portion 163. , The execution/non-execution setting (decision operation of the "menu/decision" switch 75 with the cursor K positioned) cannot be performed for "9/15" which is the current day, while "9/16" which is the next day With respect to, the execution/non-execution setting (decision operation of the "menu/decision" switch 75 with the cursor K positioned) can be performed.

After 17:00 on September 15 (Saturday), the date display unit 163 displays both the next day "9/16" and the next day "9/17" on the date display unit 163, as in the above. From 00 onwards and before 23:00, the execution/non-execution settings can be made for both days. After 23:00 on September 15 (Saturday), it becomes impossible to set the execution/non-execution for "9/16" on the next day. After that, until 17:00 on Sunday, September 16th, both days of "9/16" and "9/17" are continuously displayed on the date display portion 163, and the execution is performed for "9/16" on that day. -While the setting of non-execution cannot be performed, the setting of execution/non-execution can be performed for "9/17" on the next day. After that, after 17:00, both days of “9/17” and “9/18” will be displayed on the date display portion 163 in the same manner as described above, and the execution/execution of both days will be performed before 23:00. You can set the non-execution setting. After that, the same processing mode is repeated.

<Whether settings can be canceled>
Here, in the present embodiment, the surplus boiling-up execution unit 33A sets execution/non-execution of the solar-lighting boiling-up operation (operation in the solar mode) on each of the dates received as described above. Can be individually canceled by the appropriate operation (detailed description and illustration are omitted) on the remote control device 5 (=function as execution cancellation accepting means described in each claim). FIG. 16C of the time table shown in FIG. 16 shows an example of whether or not the cancel operation (hereinafter, appropriately referred to as “setting cancel” or “cancel”) can be performed.

As described above with reference to FIG. 16B, before 17:00 on September 14 (Friday), the execution/non-execution setting is performed for “9/15” which is the next day of the operation day. be able to. Corresponding to this, as shown in FIG. 16C, the execution/non-execution setting can be canceled for "9/15" on the next day before 17:00.

After that, on Friday, September 14, after 17:00 and before 23:00 (which is the start time of the night zone), both the next day "9/15" and the next day "9/16" As described above, the execution/non-execution setting can be made. Correspondingly, as shown in FIG. 16C, the execution/non-execution setting is canceled for those "9/15" and "9/16" before 12:00 and before 23:00. be able to.

After that, as mentioned above, from 23:00 on Friday, September 14 to before 17:00 on Saturday, September 15, execution/non-execution as described above for "9/16" You can make settings. At this time, as shown in FIG. 16C, before 23:00 on September 14th (Friday) and before 17:00 on September 15th (Saturday), not only “9/16” described above , "9/15", the execution/non-execution setting can be canceled. That is, the setting for September 15th can be canceled even after the day of September 15th. However, at this time, if the execution of the solar-powered boiling operation is selected on that day (here, September 15), the solar-powered boiling operation is performed on that day, that is, on the day of execution of the solar-powered boiling operation. After the time when the upper operation ends, the setting cannot be canceled (in other words, it cannot be accepted by the surplus boiling-up executing portion 33A. The same applies hereinafter). In the illustrated example, on September 15 (Saturday), the solar-powered boiling operation is started at 11:00 (that is, as described above, in this case, two hours later, at 15:00, the solar-powered boiling operation is started. Since the setting is made such that the upper operation is completed), after 15:00 on Saturday, September 15, it is not possible to cancel the setting of the execution for “9/15”.

After that, as before, before and after 17:00 and before 23:00 on Saturday, September 15th, the execution/non-execution settings can be set for both "9/16" and "9/17". Corresponding to the above, as shown in FIG. 16C, it is possible to cancel the execution/non-execution setting for those “9/16” and “9/17”.

After that, as described above, as described above, the execution/non-execution setting is made for “9/17” from 23:00 on Saturday, September 15 to before 17:00 on Sunday, September 16. Corresponding to what is possible, as shown in FIG. 16C, the setting of execution/non-execution can be canceled for “9/17” and “9/16” in the time range. However, at that time, in the same manner as described above, if the execution of the solar-lighting boiling operation is selected on that day (here, September 16), the sunlight on September 16 (Sunday), which is the execution day, is selected. The setting cannot be canceled after the end time of the boiling operation. In the illustrated example, the setting is such that the solar-powered boiling operation is started at 14:00 on Sunday, September 16 (that is, the solar-powered boiling operation ends at 16:00, which is two hours later). Therefore, after 16:00 on Sunday, September 16th, it becomes impossible to cancel the setting of the execution for the "9/16".

Further, after 17:00 on September 16th (Sunday), it is possible to set the execution/non-execution of both days of “9/17” and “9/18” in the same manner as described above. It is possible to cancel the setting of execution/non-execution of. After that, the same processing mode is repeated.

<Whether to change the start time of the boiling operation using sunlight>
Further, in the present embodiment, the surplus boiling-up setting unit 33C sets the start time of the solar-lighting boiling operation (operation in the solar mode) on each date, which is accepted as described above, after that. Each date can be individually changed by an appropriate operation (detailed description and illustration are omitted) on the remote control device 5 (=function as time change receiving means described in each claim). An example of the propriety of the time change operation is shown in FIG. 16D of the time table shown in FIG.

As described above with reference to FIG. 16B and the like, before 17:00 on September 14 (Friday), the execution/non-execution setting is performed for “9/15” which is the next day of the operation day. It is possible to perform (the start time can be set when the execution is set). Correspondingly, as shown in FIG. 16(d), before 17:00, the start time should be changed (hereinafter simply referred to as "time change") for "9/15" the next day. You can

After that, on Friday, September 14, after 17:00 and before 23:00 (which is the start time of the night zone), both the next day "9/15" and the next day "9/16" As described above, the execution/non-execution setting can be made. Corresponding to this, as shown in FIG. 16D, the time change can be performed for those "9/15" and "9/16" before 12:00 and before 23:00.

After that, as mentioned above, from 23:00 on Friday, September 14 to before 17:00 on Saturday, September 15, execution/non-execution as described above for "9/16" You can make settings. At this time, as shown in FIG. 16D, not only the “9/16” but also 23:00 on September 14th (Friday) and before 17:00 on Saturday September 15th. , "9/15", the time can be changed. That is, with respect to the setting for September 15th, the time can be changed even after the day of September 15th. However, at this time, in the state where the execution of the solar-powered boiling operation is selected on that day (here, September 15th), the solar usage of that day, that is, the day of execution of the solar-powered boiling operation, is performed. After the time when the boiling operation is started, the time cannot be changed (in other words, the surplus boiling setting unit 33C cannot accept it. The same applies to the following). In the example shown in the figure, the setting for starting the solar-powered boiling operation starts at 11:00 on September 15th (Saturday), so after 11:00 on September 15th (Saturday). Cannot change the start time of “11:00 on 9/15”.

After that, as before, before and after 17:00 and before 23:00 on Saturday, September 15th, the execution/non-execution settings can be set for both "9/16" and "9/17". Corresponding to the above, as shown in FIG. 16D, it is possible to change the time for “9/16” and “9/17”.

After that, as described above, as described above, the execution/non-execution setting is made for “9/17” from 23:00 on Saturday, September 15 to before 17:00 on Sunday, September 16. Corresponding to what is possible, as shown in FIG. 16D, the time can be changed for “9/17” and “9/16” in the time range. However, at that time, in the same manner as described above, if the execution of the solar-lighting boiling operation is selected on that day (here, September 16), the sunlight on September 16 (Sunday), which is the execution day, is selected. The time cannot be changed after the start time of the use boiling operation. In the illustrated example, the solar-powered boiling operation is started at 14:00 on Sunday, September 16th. Therefore, after 14:00 on Sunday, September 16th, the "9/16 14:00” of the start time cannot be changed.

Further, after 17:00 on September 16th (Sunday), it is possible to set the execution/non-execution of both days of “9/17” and “9/18” in the same manner as described above. It is possible to change the time. After that, the same processing mode is repeated.

Note that, in FIG. 16, in the date display portion 163 in which dates for a plurality of days including a predetermined display date are displayed, if the operation timing of the remote controller 50 is before 17:00, the display date is On the other hand, if it is 17:00 or later, the display date will be the next day of the operation date (that is, the display date may be off by one day from 17:00 as the first predetermined time). However, the present invention is not limited to this. That is, instead of the first predetermined time, the switching may be performed when the execution of the sunlight-using boiling operation is completed (timing of execution). Such a modification is shown in FIG. 17 corresponding to FIG.

That is, in this modification, as shown in FIG. 17A corresponding to FIG. 16A, “9/15” and “9” of the date display portion 163 after 17:00 on September 14 (Friday). Both days of "/16" are displayed before the end timing (13:00 in this example) of the solar-powered boiling operation on Saturday, September 15, which is the day when the solar-powered boiling operation is performed. After that timing, both dates of “9/16” and “9/17” are displayed in the date display portion 163 after the timing. After that, after the end timing of the solar-assisted boiling operation on September 16 (16:00 in this example), similarly, both days of “9/17” and “9/18” are displayed on the date display portion 163. To be done.

In addition, as shown in FIG. 17B corresponding to FIG. 16B corresponding to the above, the execution/non-execution of “9/15” after 23:00 on Friday, September 14th Whether or not the date can be set such that the execution/non-execution setting can be performed for “9/16” cannot be set at the timing of ending the solar light boiling operation on the execution day of the solar light boiling operation (see the above). In the example, it is continued until 13:00 on Saturday, September 15th, and after that timing, the execution/non-execution setting can be performed on both days of "9/16" and "9/17". After that, as described above, after 23:00 on Saturday, September 15th, the execution/non-execution setting cannot be performed for "9/16", and the execution/non-execution setting for "9/17" cannot be performed. This state can be done until this time before the end of the solar-powered boiling operation on the day of execution of the next solar-powered boiling operation (16:00 on Sunday, September 16 in the above example). After that timing, the execution/non-execution settings can be set for both days “9/17” and “9/18” after the timing.

Further, as shown in FIG. 17C corresponding to FIG. 16C corresponding to the above, regarding “9/15” and “9/16” after 17:00 on September 14 (Friday), The state in which the setting of execution/non-execution can be canceled is the timing of ending the solar-powered boiling operation on Saturday, September 15, which is the execution day of the solar-powered boiling operation (in the above example, 13: It is continued until before (00), and after that timing, it becomes possible to cancel the setting of execution/non-execution for "9/16" and "9/17". After that, the setting cancellation of the execution/non-execution of "9/17" and "9/18" is similarly canceled after the end timing (16:00 in the above example) of the solar-powered boiling operation on September 16th. Will be able to.

Further, as shown in FIG. 17(d) corresponding to FIG. 16(d) corresponding to the above, “9/15” and “9/16” of “9/15” and “9/16” after 17:00 on Friday, September 14th The state in which the start time can be changed for both days is the timing at which the solar-powered boiling operation ends on the execution day (in the above example, 15:00 on Saturday, September 15). It continues until before (However, after 11:00 when the solar-powered boiling operation is started, only the above-mentioned time change for September 15 is impossible). After that timing, the time can be changed for both days “9/16” and “9/17”. This state is before the timing (16:00 on Sunday, September 16 in the above example) at which the solar-powered boiling operation ends on the day of execution of the next solar-powered boiling operation, as described above. (However, after 14:00 when the boiling operation using sunlight is started, only the time change for September 16 is not possible). After the timing, the time can be changed for both days “9/17” and “9/18”.

<Characteristic 2 of this Embodiment 2 Standby Screen of Remote Control Device>
Another feature of the present embodiment is a mode of display on a standby screen in the screen display unit 60 of the remote control device 50 when performing the boiling operation using sunlight. The details will be described below step by step.

As described above with reference to FIG. 5 and the like, the standby screen 60A is displayed on the screen display unit 60 of the remote control device 50 in the standby state. Then, when the execution (and the start time) of the solar-powered boiling operation is set as described above, a different mode of display is performed according to the timing until the execution.

That is, as described above, the execution/non-execution of the solar-assisted boiling operation is selected for the plurality of days (two days in this example), and the execution of the solar-assisted boiling operation is selected for at least one day. In this case, as shown in FIG. 18A, in the date display portion 171 of the standby screen 60P, the latest date is displayed among the dates (=execution date) of at least one day when the execution is selected. It The display on the date display unit 171 is performed until the day before the most recent execution day after the execution of the solar light boiling operation is set. In the standby screen 60P of FIG. 18(a), as described above, the solar-powered boiling operation is started at 11:00 on Saturday, September 15 and at 14 on September 16 (Sunday). The display state at 20:00 on Friday, September 14 when the setting is started at 00:00 to start the boiling operation using sunlight. With this setting, since the latest execution date of the boiling operation using sunlight is September 15 (Saturday), the date display section 171 displays "9" until the execution date of September 14 (Friday). "/15" is displayed.

In addition, in the present embodiment, when the date of the latest execution date is set on the date display unit 171, that is, until the day before the latest execution date, next to the date display unit 171, the solar light boiling is performed. A surplus boiling notice mark MK (sun mark shape, which corresponds to an example of a notice display) is displayed to give notice of execution of the operation.

When the latest execution date comes after the state shown in FIG. 18A, the screen display unit 60 displays the standby screen 60Q of FIG. 18B. In this standby screen 60Q, in place of the date display unit 171 in the standby screen 60P, a time display unit 172 that represents the start time of the sunlight-using boiling operation on the execution day of the sunlight-using boiling operation is provided. Be done. In more detail, switching of the display from the date display unit 171 to the time display unit 172 is not performed at midnight when the date is switched from the day before the execution date to the execution date, but from the midnight in the night zone. Also at a fourth predetermined time (for example, 1:00, see FIG. 20A described later) which is the later timing.

In the example shown in FIG. 18B, the time display unit 172 displays “11: on the basis of the setting that the solar-powered boiling operation is started at 11:00 on Saturday, September 15 described above. "00" is displayed. The display on the time display unit 172 is performed after the execution date of the boiling operation using sunlight is started and before the boiling operation using sunlight is actually started.

After the state shown in FIG. 18A, at the start time of the boiling operation using sunlight on the execution day, the standby screen 60R of FIG. 19 is displayed on the screen display unit 60. In the standby screen 60R, a message "in addition to hot water" indicating that the solar-powered boiling operation is being executed is displayed instead of the date display portion 171 and the surplus boiling notice mark MK in the standby screen 60Q. MS (corresponding to an example of execution display) is displayed. It should be noted that this message display MS is performed while the above-mentioned boiling operation using sunlight is actually being executed (in the example shown, the state at 11:30 on Saturday, September 15 is represented). ..

The screen transition of the screen display unit 60 shown in FIGS. 18 and 19 described above is performed under the control of the display control unit 33B. That is, the display control unit 33B functions as a notice display control unit and an execution display control unit described in each claim.

<Timetable of standby screen display example>
An example of display contents on the standby screens 60P, 60Q, 60R described with reference to FIGS. 18(a), 18(b) and 19 is shown in FIG. 20(a) of the time table shown in FIG. Show.

In FIG. 20(a), in this example, the sun is set to have start times of 11:00 on Saturday, September 15th and 14:00 on Sunday, September 16th, respectively. The setting for execution of the boiling operation using light (operation in the solar mode) is made at 20:00 on Friday, September 14. As described above, after the execution of the boiling operation using sunlight is set, the date display unit 171 displays the latest date on the day before the latest execution date and before 1:00 on the latest execution date. The execution date of is displayed. As a result, "9/15" is displayed on the date display portion 171 on the standby screen 61B from 20:00 on September 14th (Friday) to before 10:00 on September 15th (Saturday). As described above, the surplus boiling notice mark MK (sun mark shape) is displayed beside it.

After that, as described above, after 1:00 on the most recent execution day, the start time of the solar-powered boiling operation is displayed on the time display unit 172, and the solar-powered boiling operation is actually executed. In the meantime, the message display MS is displayed. As a result, as shown in the figure, before 10:00 to 11:00 on Saturday, September 15, in the standby screen 60Q, in addition to the surplus boiling notice mark MK (sun mark shape), the time display is displayed. In the section 172, “11:00” is displayed. Then, as described above, after the solar-powered boiling operation starts at 11:00 on Saturday, September 15th, the solar-powered boiling operation ends until 13:00, and then waits. On the screen 61D, the message display MS of "adding hot water" is displayed.

Then, after 13:00 on Saturday, September 15th, "9/16" in the date display portion 171 of the standby screen 61B and the surplus boiling notice mark MK (sun mark shape) are displayed in the same manner as above. This display is displayed before 1:00 on September 16 (Sunday). Then, after 1:00 on September 16 (Sunday), “14:00” and the surplus boiling notice mark MK (sun mark shape) on the time display portion 172 of the standby screen 60Q are displayed in the same manner as described above. After that, from 14:00 to 16:00 on Sunday, September 16th, the message display MS of "adding hot water" is displayed on the standby screen 61D. Note that in this example shown in FIG. 20A, before 20:00 on September 14 (Friday) and before 16:00 on Sunday, September 16 before the setting is performed. Indicates that there is no date display portion 171, time display portion 172, surplus boiling notice mark MK, or message display MS (abbreviated as “x” in FIG. 20A), and the standby screen 60A shown in FIG. Is displayed.

In addition to the above, in FIG. 20B, the setting of non-execution of the boiling operation using sunlight is set for September 15 (Saturday), and the start time is 14:00 for September 16 (Sunday). The setting of execution of the above-mentioned solar light boiling operation (operation in the solar mode) is performed at 20:00 on Friday, September 14. In this case, since the latest execution date is September 16 (Sunday), as shown in the figure, before September 2:00 (Friday) 20:00 to September 16 (Saturday) 1:00. Until then, on the standby screen 61B, "9/16" is displayed on the date display portion 171 and the surplus boiling notice mark MK (sun mark shape) is displayed next to it as described above.

After that, until 10:00 to 14:00 on Sunday, September 16th, in addition to the surplus boiling notice mark MK (sun mark shape) on the standby screen 60Q, the time display unit 172 displays “14: 00” is displayed. Then, as described above, after the solar-powered boiling operation starts at 14:00 on Sunday, September 16th, the solar-powered boiling operation ends until 16:00, until the solar-powered boiling operation ends. On the screen 61D, the message display MS of "adding hot water" is displayed. In addition, in this example shown in FIG. 20B, before 20:00 on September 14 (Friday) before the setting is performed and after 16:00 on September 16 (Sunday). Indicates that there is no date display portion 171, time display portion 172, surplus boiling notice mark MK, or message display MS (abbreviated as “x” in FIG. 20A), and the standby screen 60A shown in FIG. Is displayed.

Further, in FIG. 20(c), as in the case of FIG. 20(a), the setting of execution of the solar light boiling operation at the start time 11:00 with respect to September 15 (Saturday), September 16 ( After setting the execution time of the above-mentioned solar light boiling operation at 14:00 on Sunday) at 20:00 on Friday, September 14, 6:00 on Saturday, September 15 In the above, an example of a case in which the setting of the start time 11:00 on Saturday, September 15 is changed to 12:00 will be described.

In this case, it is the same as FIG. 20(a) until the change is made, and the standby screen is displayed before 20:00 of September 14 (Friday) to 0:00 of September 15 (Saturday). In 61B, "9/15" is displayed on the date display portion 171 and the surplus boiling notice mark MK (sun mark shape) is displayed next to it as described above. After that, from 10:00 to 6:00 on Saturday, September 15th, on the standby screen 60Q, in addition to the surplus boiling notice mark MK (sun mark shape), the time display unit 172 displays “11: 00” is displayed. After the change is made at 6:00 on September 15th (Saturday), the standby screen is displayed until 12:00 on September 15th (Saturday) after the change is made. At 60Q, "12:00" is displayed on the time display portion 172 in addition to the surplus boiling notice mark MK (sun mark shape). Then, at 12:00 on Saturday, September 15th thereafter, the setting (to reflect the above-mentioned change) to start executing the solar-assisted boiling operation from 12:00 is the same as in step S40 or As described in step S42, the surplus boil-up execution section 33A and the surplus boil-up setting section 33C receive the control, and based on this setting, the above-described control of step S40 and step S42 and thereafter is executed. In this way, the solar-assisted boiling operation is started from 12:00, and until 14:00 when the sunlight-assisted boiling operation is finished, the message display MS of "adding hot water" is displayed on the standby screen 61D. It The subsequent steps are the same as those in FIG.

Further, in FIG. 20(d), as in the case of FIG. 20(a), the setting of execution of the solar light boiling operation at the start time of 11:00 with respect to Saturday, September 15th, September 16th ( After setting the execution time of the solar light boiling operation at 14:00 on Sunday) at 20:00 on Friday, September 14, 11:00 on Saturday, September 15 In the above, an example in which the setting of the start time 11:00 on Saturday, September 15th is changed to be advanced to 10:00 will be described.

In this case, similarly to the above, until the change is made, the display mode is the same as that of FIG. 20A, and from 0:00 of September 14 (Friday) to 9:00 of September 15 (Saturday). Until now, in the standby screen 61B, "9/15" is displayed on the date display portion 171 and the surplus boiling notice mark MK (sun mark shape) is displayed next to it as described above. After that, until 10:00 to 11:00 on Saturday, September 15th, in addition to the surplus boiling notice mark MK (sun mark shape) on the standby screen 60Q, the time display section 172 displays “11: 00” is displayed. Then, when the change to be carried up to 10:00 is made at 11:00 on Saturday, September 15th, the advanced start time of 10:00 has already passed corresponding to the change. Therefore, as described above in step S40 and step S42, the setting to reflect the start of the solar-assisted boiling operation from 10:00 (reflecting the changed contents) is the excess boiling execution. It is accepted by the section 33A and the excess boiling setting section 33C, and the control is executed based on this setting. That is, in response to the fact that the start time has already passed, the determination in step S320 of FIG. 9 is satisfied, and the surplus boiling-up control unit 40 immediately causes the surplus boiling (using solar light) in step S322. The boiling operation) is started. In this way, after the solar-powered boiling operation is started at 11:00, until the solar-powered boiling operation ends 2 hours later (that is, 13:00), the "hot water addition" is displayed on the standby screen 61D. The message display MS of "Medium" is displayed. The subsequent steps are the same as those in FIG.

<Effects of the embodiment>
As described above, according to the present embodiment, the selection of execution/non-execution of the solar light boiling operation and the setting of the start time are performed by a plurality of consecutive days (two consecutive days in the above example). ), and the selection of the execution/non-execution and the setting of the start time of the solar-powered boiling operation can be individually performed for each of the plurality of due dates. As a result, for example, on the desired date (September 14 (Friday) according to the above example) that precedes the execution day of the solar-powered boiling operation, the user can previously select a plurality of days (9 according to the above example). Selection of execution/non-execution of the boiling operation using the solar light (for two days on Saturday, September 15th and Sunday, September 16th) (see FIG. 12(a), FIG. 15(a), etc.) It is possible to set the start time on the execution date (see FIG. 13B, FIG. 15B, etc.) at once, and to change the selection/setting contents individually for each deadline. As a result, the complexity of having to perform execution/non-execution of the boiling operation using sunlight and the setting of the operation start time every day can be eliminated, and the convenience for the user can be improved.

Further, particularly in the present embodiment, on a certain day, the selection of whether or not to execute the solar-lighting boiling operation on that day (the present day) is not accepted (see FIG. 16B). This has the following significance. That is, as described above, normally, when performing the boiling operation using sunlight, the boiling water amount (corresponding to the night boiling capacity) in the boiling operation performed in the night zone of the day before is By subtracting the amount of boiling water expected in the boiling operation using sunlight (corresponding to the corrected night boiling capacity), it is possible to suppress the electricity charge during night boiling. Therefore, whether or not to perform the boiling operation using sunlight must be determined at least the day before the operation. In the present embodiment, by not accepting the selection of execution/non-execution of the solar-powered boiling operation on the day, in other words, by accepting only the selection made at least until the previous day, electricity by subtracting the boiling water amount It is possible to reliably control charges.

Further, particularly in the present embodiment, on a certain date, selection of execution/non-execution of the solar light boiling operation after the start time of the night zone (after 23:00 in the above example) on that day (current day) Is not accepted (see FIG. 16B). This has the following significance. That is, usually, the nighttime zone is a time zone that starts from midnight time late on a certain date, changes to the date of the next day at midnight, and ends early in the morning of the next day (for example, determined by the contract content with the electric power company. (23:00-7:00 in the above example). In this embodiment, even before midnight, if the start time of the night zone is reached, the selection of whether or not to execute the boiling operation using sunlight is not accepted. .. As a result, similarly to the above, it is possible to surely suppress the electricity rate by subtracting the boiling water amount in the boiling operation in the night zone.

Further, particularly in the present embodiment, once canceled as described above, cancellation (cancellation) for selection of the execution or the non-execution of the solar-assisted boiling operation for each due date is individually canceled for each due date. Will be accepted. Accordingly, even if the user wants to cancel the selection of execution/non-execution of the boiling operation using sunlight, which is once performed by the user for some reason such as the content of the weather forecast being changed, for example, it can be surely dealt with. As a result, the convenience for the user can be further improved.

Further, particularly in the present embodiment, the end time of the solar-powered boiling operation on the execution day on which the solar-powered boiling operation is executed (September 15 (Saturday) 13:00, September in the above example). After 16:00 on the 16th (Sunday), the cancellation for the selection of the execution or the non-execution for the execution date cannot be accepted. Thereby, it is possible to prevent the control confusion from occurring due to cancellation of the execution selection at the timing when the solar-powered boiling operation has already been executed by the user's selection of the execution.

Further, particularly in the present embodiment, once accepted, the change to the setting of the start time of the solar-powered boiling operation for each date is individually accepted for each date (see FIG. 16D, etc.). Accordingly, even when the user wants to change the setting of the start time of the boiling operation using sunlight, which is once performed by the user for some reason such as the content of the weather forecast being changed, for example, it can be surely dealt with. As a result, the convenience for the user can be further improved.

Further, particularly in the present embodiment, the start time of the solar-powered boiling operation on the execution day of the solar-powered boiling operation (in the above example, September 15 (Saturday) 11:00, September 16). After (Sunday) 14:00), the change to the start time of the boiling operation using the sunlight cannot be accepted. With this, it is possible to prevent the confusion in control due to the change of the start time at the timing when the solar light boiling operation has already been started by the setting of the start time by the user. ..

In addition, particularly in the present embodiment, at a reception time earlier than the start time of the execution day of the solar light boiling operation, a change that makes the start time of the solar light boiling operation earlier than the reception time is accepted. When (see FIG. 20(d)), the sunlight-based boiling operation is immediately started. With this, unlike the initial intention of the user, in response to the new intention to start the solar-powered boiling operation at a timing earlier than the current time, the solar-powered boiling operation is started as quickly as possible. be able to.

Further, particularly in the present embodiment, in the date display portion 163 of the setting screens 60D and 60J of the screen display portion 60, a predetermined display date (in the above example, the operation date is before 17:00. The operation is after 17:00). Dates for a plurality of days (two days in the above example) including the day following the day) are displayed, and execution/non-execution of the solar-powered boiling operation is accepted for each deadline (FIG. 11(b), 12(a), 14(b), 15(a), etc.). Accordingly, the user can sequentially select execution/non-execution of the solar-lighting boiling operation for each date while viewing the displayed dates for the plurality of days. As a result, the selection can be performed by an easy-to-understand and simple operation, and the convenience for the user can be improved. In addition, the user selects whether execution of the solar light boiling operation is selected or not executed for each date of the plurality of days, how many of the plurality of days have been selected, etc. Can be easily confirmed. As a result, the user can determine whether or not it is necessary to change the selection according to a change in the weather forecast, and can appropriately change the selection as necessary.

Further, particularly in the present embodiment, the date display portion 163 of the setting screens 60D and 60J of the screen display portion 60 includes the desired date before the first predetermined time (17:00 in the above example). A plurality of days worth of dates are displayed, and after the first predetermined time of the desired day, the days worth of the plurality of days including the next day of the desired day are displayed. This has the following significance.

That is, for example, even if the irradiation of sunlight is sufficient for power generation during the day, it gradually decreases as it approaches the evening, and becomes insufficient for power generation at a certain time (for example, 17:00). It becomes a state. Therefore, it is meaningless to display the date of the day on the screen display unit 60 since solar power generation of the day is not possible after that time (it is sufficient to display the day after the day after that day). Therefore, in the present embodiment, as shown in FIG. 16A, etc., before the first predetermined time, the dates for the plurality of days including the day are displayed, while the first predetermined time and thereafter are displayed. Displays the dates for the plurality of days from the next day. Alternatively, for example, when it is set to execute the solar-powered boiling operation on that day, even after the solar-powered boiling operation is executed, the date of the day is displayed on the screen display unit 60 in the same manner as described above. There is no meaning to display (it is sufficient to display the day after the day after). Therefore, in the above-described modified example, as shown in FIG. 17A and the like, the timing at which the solar-powered boiling operation has been executed (in the above example, September 15 (Saturday) 13:00, 9) Before 16:00 on Sunday (Sunday 16th of the month), the dates for the multiple days including that day are displayed, while after the timing when the boiling operation using the solar light has been executed, the multiple days from the day after the day are displayed. Display the date of. By the above method, it is possible to avoid the above-mentioned display having substantially no meaning and to make the display contents easy for the user to understand.

Further, particularly in the present embodiment, on the setting screen 60H and the like, a third predetermined time (above the first predetermined time) from the second predetermined time (7:00 in the above example) after the end time of the nighttime zone (the above described) In the example of 1), a plurality of start time candidates that can be set as the start time of the solar light boiling operation (in the above example, “7:00”, “8:00”, and “9:00”) "10 o'clock", "11 o'clock", "12 o'clock", "13 o'clock", "14 o'clock", "15:00 o'clock") are sequentially displayed in a visually recognizable manner, and any one of the selections by the user is accepted. This has the following significance.

Since solar power generation is not performed at least in the night zone, the start time when the solar-powered boiling operation is performed is after the end time of the night zone. Further, as described above, solar power generation is not possible after the first predetermined time (17:00 in the above example), so the start time is before the first predetermined time. Specifically, considering the time required for the solar-powered boiling operation (2 hours in the above example), the start time is set after the time advanced from the first predetermined time by the time required. But it doesn't make sense. Therefore, in the present embodiment, from the second predetermined time (7:00 in the above example) after the end time of the night zone to the third predetermined time (15:00 in the above example) earlier than the first predetermined time. The plurality of start time candidates are displayed in the time range (7: 00 to 15:00 in the above example). It is sufficient for the user to appropriately select the start time from the plurality of candidates, so that it is easy to understand with a simple operation and the convenience can be further improved.

Further, particularly in the present embodiment, at the third predetermined time (15:00 in the above example), the time deviation up to the first predetermined time is the time required for the solar-powered boiling operation (the above example). It is set to be 2 hours or more). As a result, the time difference between the third predetermined time and the first predetermined time is at least as long as the time required for the boiling operation using sunlight (2 hours in the above example) or more, so that It is possible to reliably avoid a meaningless display and make the display content easy for the user to understand and use.

In addition, particularly in the present embodiment, when execution of the solar-powered boiling operation is selected, on the standby screen 60P, the day before the latest execution day on which the solar-powered boiling operation is executed (the above-mentioned In the example, until September 14 (Friday), for example, the surplus boiling notice mark MK for notifying the execution of the solar light boiling operation and the date display portion 171 representing the date of the most recent execution day. ("9/14" in the above example) is displayed. Thereby, the user can reliably visually confirm that the execution of the boiling operation using sunlight is selected and when the boiling operation using sunlight is executed. In addition, since the latest solar-powered boiling operation execution date can be easily confirmed, the user can determine whether the execution/non-execution selection needs to be changed according to changes in the weather forecast. Can be determined, and the above-described selection change can be appropriately performed as necessary.

Further, particularly in the present embodiment, when the latest execution date (eg, Friday, September 14 in the above example) comes, the standby screen 60Q replaces the date of the latest execution date with the sun. The time display unit 172 (“11:00” in the above example) indicating the start time of the light-assisted boiling operation is displayed. Thus, the user can reliably visually recognize that the day of the boiling operation using the sunlight has come and what time of the day the boiling operation using the sunlight starts. In addition, since the start time of the solar-powered boiling operation can be easily confirmed on the day, the user can further change the selection of the execution/non-execution or the selection depending on the change of the weather forecast for each time zone of the day. Whether or not the setting of the start time needs to be changed can be determined to the last minute, and the selection and the start time can be appropriately changed as necessary.

Further, particularly in the present embodiment, switching from the date display portion 171 of the standby screen 60P to the time display portion 172 of the standby screen 60Q is performed at the fourth predetermined time (1 in the above example, which is later than midnight in the night zone). : 00). This has the following significance.

That is, as described above, the setting of the night zone may vary depending on the contract content with the electric power company, and depending on the setting, when considering the break from the day before the execution day to the day of the execution day as described above, it is midnight. There may be cases where the boundaries do not match well. Therefore, in the present embodiment, by switching from the date display unit 171 to the time display unit 172 at the fourth predetermined time (1:00 in the above example) which is later than midnight, the above-mentioned harmful effect is caused. Can be prevented in advance.

Further, particularly in the present embodiment, while the solar-lighting boiling operation is being executed, the message display MS of "adding hot water" indicating that it is being executed is displayed on the standby screen 60R. As a result, it is possible to reliably inform the user that the boiling operation using sunlight is currently being executed. In addition, it is also possible to make the user surely recognize that the start time of the boiling operation using the sunlight on that day cannot be changed.

Further, particularly in the present embodiment, the selection of execution/non-execution of the solar light boiling operation and the setting of the start time are performed on two consecutive dates (in the above example, September 15 (Saturday) and September 16 (Sunday) (see FIG. 11A, FIG. 14A, etc.) can be performed individually. This has the following significance.

In general, the weather forecast often announces the transition of the weather for each time zone only for the next two days. In other words, technically, the weather after three days can only be predicted roughly for each day. In the present embodiment, corresponding to this, selection of execution/non-execution of the boiling operation using sunlight and setting of the start time are performed over two consecutive days. That is, the selection of the execution/non-execution of the solar-powered boiling operation and the setting of the start time of the solar-powered boiling operation are separately performed only for two days, the next day and the day after the desired day. To be able to do it. Accordingly, the selection and the setting at the previous date, which is not so significant in view of the technical circumstances described above, can be eliminated, and an easy-to-use apparatus configuration matching the actual situation can be provided.

It should be noted that the present invention is not limited to the above-described embodiment, and is applicable within a range not changing the gist thereof. For example, instead of the heat pump device 19, an electric heater type heating means may be used. is there.
Further, in the above, on the setting screens 60B to 60M of the remote control device 50, the selection of execution/non-execution of the boiling operation using sunlight and the setting of its start time are performed for two consecutive days and for each deadline. Although it can be performed individually, it is not limited to this. That is, although detailed illustration is omitted, in the same setting screen as above, the selection of execution/non-execution of the boiling operation using sunlight and the setting of the start time thereof are performed on predetermined continuous consecutive days (for example, one week). It may be possible to collectively carry out all the common days for a certain number of days).
In the invention in this case, similarly to the above, the setting is collectively performed for the one week starting from the day after the desired day (the day when the control procedure according to the flow shown in FIGS. 6 to 9 is started). It is configured to perform, in a form that modifies the invention according to claim 1,
"A hot water storage tank for storing hot water, comprising a heating means for heating the hot water, wherein the heating means performs a boiling operation for heating the hot water in the hot water storage tank,
On the desired day, the sun using the electric power from the photovoltaic power generation device in the daytime zone excluding the predetermined night zone on each of the predetermined consecutive days consecutive for a plurality of days (for example, one week) starting from the day after the desired day Common selection receiving means (function configuration corresponding to the surplus boiling-up executing portion 33A) that collectively receives the selection of execution/non-execution of the light-utilizing boiling-up operation commonly for each date.
When the execution of the solar light use boiling operation on each of the continuous dates is selected by the common selection reception means, the start time of the solar light use boiling operation on each of the continuous date is set to be common to each date. Common setting receiving means (function configuration corresponding to the surplus boiling setting unit 33C),
The solar light use boiling operation is performed according to the selection of the execution of the solar light use boiling operation received by the common selection reception means and the setting of the start time received by the common setting reception means. A heating control means (a functional configuration corresponding to the surplus boiling-up control section 40) for controlling the heating means as described above;
A hot water storage type hot water supply device having: "
Can be configured as.
Further, in that case, regarding the date display on the date display unit 163 of the setting screens 60B to 60M described above as the function of the display control unit 33B, the last date among the dates for one week should be displayed. You can In that case, in a modified form of the invention according to claim 9,
"Display means for performing the desired display,
Final display control means for controlling the display means so as to display the final date after the lapse of a plurality of days (for example, one week) from a predetermined display date (operation day) (“up to xx days, etc.”) A functional configuration corresponding to the display control unit 33B),
Further has
The common selection receiving means,
Under the control of the final display control means, a hot water storage water heater that collectively receives the selection of execution/non-execution for each of the due dates of the plurality of days until the final date displayed on the display means, in common for each due date. .. "
It can also be configured as.
In that case, as for the display of the surplus boiling notice mark MK of the standby screens 60P to 60R, the date display unit 171, and the time display unit 172 described above as the function of the display control unit 33B, the solar-powered boiling operation is also performed. The surplus boiling notice mark MK and the date of the last day are displayed until the day before the last day of the continuous dates (for example, one week) to be executed, and when the last day is reached (it may be from 1:00 of the last day. ), instead of the date of the last day, the start time of the boiling operation using sunlight can be displayed. In that case, in a modified form of the invention according to claim 13,
"Display means for performing the desired display,
When the selection of the execution on the continuous date (for example, one week) is received by the common selection receiving means, the solar light boiling operation is executed until the day before the last day of the continuous dates. Hot water storage having a notice display (for example, a sun shape) for giving a notice and a notice display control unit (functional configuration corresponding to the display control unit 33B) for controlling the display unit so as to display the date of the last day. Water heater. "
"The notice display control means is
On the last day, a hot water storage water heater that controls the display means so as to display the start time of the solar light boiling operation in place of the date on the last day. "
It can also be configured as.
Further, in that case, the cancellation of the setting of execution/non-execution of the solar-assisted boiling operation in the surplus boiling execution unit 33A can be collectively canceled as described above. You can also In this case, in a modified form of the invention described in claim 4,
"Cancel the setting (cancellation) for the selection of the execution or the non-execution of the solar-powered boiling operation common to each date, which is accepted by the common selection acceptance means, in common for each date, common cancellation Hot water storage type hot water supply device further having a reception means (functional configuration corresponding to the surplus boiling-up execution portion 33A)."
It can also be configured as.
Further, in the above case, the change of the setting of the start time of the solar light boiling operation at the time of executing the solar light boiling operation described above in the surplus boiling setting unit 33C is also collectively set as described above. You can also change the contents all at once. In this case, in a modified form of the invention according to claim 6,
“A common change receiving means (collecting the surplus boiling-up) collectively accepting a change to the setting of the start time of the solar-powered boiling operation common to each of the dates accepted by the common-setting accepting means. Hot water storage water heater further having a functional configuration corresponding to the setting unit 33C."
It can also be configured as.

Further, in the above, the arrows shown in each drawing such as FIG. 4 indicate an example of the signal flow, and do not limit the signal flow direction.

Further, the flow charts shown in FIGS. 6 to 9 are not intended to limit the present invention to the procedure shown in the above flow, and addition/deletion of the procedure or change of the order within a range not departing from the spirit and technical idea of the invention. You may

1 Hot Water Storage Water Heater 3 Solar Power Generation Device 10 Hot Water Storage Tank 19 Heat Pump Device (Heating Means)
33A surplus boiling execution unit (execution selection reception means, execution cancellation reception means)
33B Display control unit (date display control means, time display control means, notice display control means, execution display control means)
33C surplus boiling setting unit (time setting receiving means, time change receiving means)
40 Surplus boiling control unit (heating control means)
50 remote control device 60 screen display unit (display means)
60B-M setting screen 60A, P-R standby screen

Claims (17)

A hot water storage tank for storing hot water, comprising a heating means for heating the hot water, wherein the heating means performs a boiling operation for heating hot water in the hot water storage tank,
On the desired day, in the daytime zone excluding the predetermined night zone of each of the predetermined consecutive days for a plurality of consecutive days after the desired day, execution of solar-powered boiling operation using electric power from the solar power generation device. Execution selection acceptance means for individually accepting non-execution selections for each due date,
When the execution of the solar-powered boiling operation on at least one of the consecutive dates is selected by the execution selection receiving unit, the start time of the solar-powered boiling operation on the at least one date is selected. Time setting acceptance means that accepts settings individually for each date,
The solar light use boiling operation is performed according to the selection of the execution of the solar light use boiling operation received by the execution selection reception unit and the setting of the start time received by the time setting reception unit. A heating control means for controlling the heating means so that
A hot water storage type hot water supply device having: The execution selection receiving means,
The hot water storage type water heater according to claim 1, wherein, on the desired day, selection of execution/non-execution of the boiling operation using sunlight on the desired day is not accepted. The execution selection receiving means,
The hot water storage according to claim 1 or 2, wherein after the start time of the night zone of the desired day, selection of execution/non-execution of the solar-powered boiling operation on the next day is not accepted. Water heater. Canceling the selection of the execution or the non-execution of the solar light boiling operation for each due date, which has been accepted by the execution selection accepting means, individually accepts for each due date, and further has an execution cancellation accepting means. The hot water storage water heater according to any one of claims 1 to 3. The execution cancellation acceptance means is
On the execution day on which the solar light boiling operation is executed based on the selection of the execution received by the execution selection receiving means, after the end time of the solar light use boiling operation, the execution or the execution on the execution day The hot water storage water heater according to claim 4, wherein the cancellation of the non-execution selection is not accepted. A time change accepting means, which accepts a change to the setting of the start time of the solar-powered boiling operation for each due date, which is accepted by the time setting accepting means, individually for each due date. The hot water storage water heater according to any one of claims 1 to 5. The time change reception means,
On the execution day when the solar light boiling operation is executed based on the selection of the execution received by the execution selection receiving means, after the start time of the solar light boiling operation, the solar light boiling operation is performed. The hot water storage water heater according to claim 6, wherein the change of the start time is not accepted. The heating control means,
The time change receiving means, at the reception time earlier than the start time of the solar light boiling operation, on the execution day, a change to make the start time of the solar light boiling operation earlier than the reception time. 8. The hot water storage type water heater according to claim 7, wherein the heating means is controlled so as to start the solar-powered boiling operation when received. Display means for performing a desired display,
Date display control means for controlling the display means so as to display the dates for the plurality of days including a predetermined display date,
Further has
The execution selection receiving means,
The control of the date display control means receives the selection of execution/non-execution for each of a plurality of dates on which the date is displayed on the display means individually for each date. Item 9. A hot water storage water heater according to any one of items 8. The date display control means,
On the desired day, before the first predetermined time when the power generation by the solar power generation device is assumed to fall from a sufficient state to an insufficient state, or before the execution timing of the solar light boiling operation is completed. Displays the dates for the plurality of days including the desired day as the display date, and after the first predetermined time of the desired day, or after the execution timing of the solar light boiling operation 10. The hot water storage type water heater according to claim 9, wherein the display means is controlled so as to display the days corresponding to the plurality of days after the next day including the next day as the display day. A plurality of starts that can be set as the start time of the boiling operation using sunlight in a time range from a second predetermined time after the end time of the nighttime zone to a third predetermined time earlier than the first predetermined time. In order to sequentially display time candidates so that they can be visually recognized, a time display control means for controlling the display means is further provided,
The time setting reception means,
The setting of the start time by selecting one of the plurality of start time candidates sequentially and visually displayed on the display means under the control of the time display control means is performed individually for each due date. The hot water storage type water heater according to claim 10, wherein the hot water storage type water heater is received. The third predetermined time is
The hot water storage water heater according to claim 11, wherein the time deviation up to the first predetermined time is set to be equal to or longer than a time required for the solar-powered boiling operation. Display means for performing a desired display,
When the selection of execution is accepted by the execution selection accepting means, the solar utilization boiling operation is performed until the day before the latest execution day on which the sunlight utilization boiling operation is executed based on the selection. 9. A notice display control means for controlling the display means so as to display a notice display for giving notice of execution of and a date of the most recent execution date. The hot water storage type water heater according to any one of claims. The notice display control means,
14. The display means is controlled to display the start time of the boiling operation using sunlight instead of the date of the latest execution date on the latest execution date. Hot water storage water heater described. The notice display control means,
15. The hot water storage water heater according to claim 14, wherein the display of the date on the display unit is switched to the display of the start time at a fourth predetermined time later than midnight in the nighttime zone. An execution display for controlling the display means so as to display an execution display indicating that it is being executed while the sunlight use boiling operation on the execution day of the sunlight use boiling power generation is being executed. The hot water storage water heater according to any one of claims 13 to 15, further comprising control means. The consecutive dates are
The hot water storage water heater according to any one of claims 1 to 16, wherein the hot water storage water heater is constituted by two consecutive dates.

Images