JPH04177048A - Electrical calorifier - Google Patents

Abstract

PURPOSE:To enable a positive setting of additional boiling time to be attained by a method wherein a total amount of additional boiling tine at a specified say and a remaining additional boiling time at a time when a displaying of the total amount of time is confirmed are confirmed through their displaying. CONSTITUTION:It is set by a night time range setting part that an operation is being carried out at a daytime range, and then an additional boiling setting and displaying part 9 displays an additional boiling time and the additional boiling remaining time displaying part 10 displays an additional boiling remaining time. When an additional boiling time is set at the daytime additional time setting part 6, its additional boiling time signal is inputted to a heater electrical energization allowing part 7. The heater electrical energization allowing part 7 performs a following calculation. That is, an additional boiling remaining time = an additional boiling time setting heater electrical energization calculation time. The heater electrical energization allowing part 7 performs an electrical energization as long as the additional boiling remaining time is not 0. Upon energization of electricity, the temperature control part 4 controls an electrical energization for the heater 2 on the basis of the hot water temperature detected by a temperature sensing part 3, so that the hot water in the hot water storing tank 1 is boiled up at the set temperature in an amount corresponding to its used volume.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hot water storage type electric water heater that utilizes late-night power and daytime power.

2. Description of the Related Art As shown in FIG. 3, for example, a conventional electric water heater includes a hot water storage tank 1, a heater 2, and a temperature detection section 3 for detecting the temperature of hot water in the hot water storage tank 1. 4 is a temperature detection section 3
5 is a temperature control unit that controls energization to the heater 2 based on the temperature detected by the unit; 5 is a night time zone setting unit that sets a night time zone;
Reference numeral 11 denotes a retrieval permission setting section in which the user sets whether or not to perform retrieval during the day, and reference numeral 12 indicates when the night time period is set in the night time period setting section 5, or when the night time period is set by the night time period setting section 5.
9 is a heater energization permission section that turns on electricity to the heater 2 when the daytime time zone is set and reheating permission is set in the reheating permission setting section 11; Resetting display section 9 that displays the setting status of
．． 13 is a power source.

In the electric water heater having the above configuration, during night time, the heater 2 is energized by the heater energization control section 12, and the energization to the heater 2 is controlled by the temperature control section 4 based on the temperature detected by the temperature detection section 3, and hot water is stored. Boil the water in tank 1. On the other hand, during daytime hours, the chasing permission setting section 11
When recharging is permitted by the heater i! ! Electricity is supplied by the electric control unit 12, and hot water in the hot water storage tank 1 rises. Conversely, when reheating is not permitted by the reheating permission setting unit 11, the heater energization control unit 12 does not energize, and boiling is not performed during the daytime hours.

In this way, boiling is performed mainly at night, and when the amount of stored hot water is insufficient due to nighttime power alone, such as in winter, the user can enable daytime reheating using the daytime reheating permission setting section 11. Even during daytime hours, the hot water is always reheated at the set temperature, so you don't have to worry about running out of hot water. In addition, if there is surplus hot water to be heated using electricity at night, such as during the summer, the user can set the daytime reheating permission setting section 11 to prohibit daytime recharging, and then the daytime recharging can be stopped. I can do it. Further, the status of whether or not there is a reheating can be checked from the redirection display section 9↓.

Problems to be Solved by the Invention However, in the conventional configuration, only the presence or absence of refueling during the daytime can be set and confirmed, and therefore the following problems occurred.

When the amount of heat is insufficient with nighttime electricity alone, reheating is allowed during the day to avoid running out of hot water.

However, in this state, during the daytime hours, the hot water in the hot water storage tank 1 is always boiled to a temperature preset by the temperature control section 4 according to the amount used. Therefore, the heating rate with daytime power, which is more expensive than nighttime power, becomes higher, which is uneconomical.

That is, when trying to achieve both the prevention of running out of hot water and the economical efficiency, the user must understand the reheating situation and appropriately set whether or not to reheat the hot water. However, with the conventional configuration, it was only possible to set and confirm the presence or absence of reheating, which placed a heavy burden on the user, and in actual use, there was a problem that either the hot water ran out or the economy had to be sacrificed. .

The present invention solves these problems and is economical and
This enables effective catch-up during daytime hours.

Means for Solving the Problems In order to solve the above problems, the present invention provides a heater that heats water in a hot water tank during nighttime hours and daytime hours, a night time zone setting section that sets the night time zone, a daytime reheating time setting unit that sets the reheating performed during the daytime as an integrated value of the heater energization time during the daytime; a heater energization time integration unit that integrates the heater energization time during the daytime; During the nighttime period set in the time zone setting section, the heater is energized, and during the daytime, the heater energization time accumulated by the heater energization time integration section reaches the daytime reheating time set in the daytime reheating time setting section. a heater energization permission section that turns on the heater energization until the end of the day, a reheating setting display section that displays the time set in the daytime reheating time setting section, a time accumulated by the heater energization time integration section, and a daytime reheating time setting section. It consists of a catch-up remaining time display section that displays the difference between the set times set in .

According to the above-described configuration, the present invention displays the daytime chasing setting, that is, the total amount of chasing time to be performed on day - on the chasing setting display section, and the heater energization time integrating section totalizes the time during which chasing is performed. Since the difference from the daytime catch-up setting, that is, the remaining catch-up time can be displayed on the catch-up remaining time display section, economical and effective daytime catch-up can be performed.

Example Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration diagram of an embodiment of an electric water heater of the present invention.

1 is a hot water storage tank having a hot water outlet 1a at the top and a water supply port 1b at the bottom; 2 is a heater that heats the water in the hot water storage tank 2;

3 is a temperature detection unit that detects the temperature of the water near the heater 2; 4 is a temperature control unit that inputs the temperature detection signal from the temperature detection unit 3 and controls the energization of the heater 2 to boil the water to a set temperature;
Reference numeral 5 denotes a nighttime time setting section for setting the nighttime time period, 6 a daytime catch-up time setting section for setting the heater energization time for daytime reheating in the daytime time period, and 7 a nighttime time setting section 5.
and a heater energization permission section that inputs signals from the daytime reheating time setting section 6 to permit or prohibit heater energization; 8 is a heater energization time integration section that accumulates the heater energization time during daytime hours; 9 is a daytime heater energization time integration section; A reheating setting display section 10 displays the reheating time set by the reheating time setting section 6, and 10 indicates the reheating time set at the daytime reheating time setting section 6 and the sum totaled by the heater energization time integration section 8. This is a catch-up remaining time display section that displays the difference from the time. 13 is a power source. Further, FIG. 2 is an external view of the daytime catch-up time setting section 6, catch-up setting display section 9, and catch-up remaining time display section 10 of this embodiment.

The operation of the above configuration will be explained. The operation during the night time period is the same as in the conventional example, and operates as follows.

When the night time zone is set by the night time zone setting section 5 and the signal thereof is input to the heater energization permission section 7, the heater energization permission section 7 energizes the temperature control section 4 and the temperature detection section 3.
energization to the heater 2 is controlled based on the water temperature detected by the
Boil the hot water in the hot water storage tank 1 to the set temperature.

When the nighttime time setting unit 5 sets that it is daytime and a signal indicating the daytime time is input to the heater energization permission unit 7, the heater energization permission unit 7 sets the daytime catch-up time setting unit 6. The difference between the set reheating time setting and the time accumulated by the heater energization time integration section 8, that is, the remaining time for reheating, is calculated, and the current is applied until this time becomes zero.

At this time, the catch-up setting display section 9 displays the catch-up time, and the catch-up remaining time display section 1O displays the catch-up remaining time.

The operation during daytime hours is explained step by step as follows. When it is daytime, the night time zone setting section 5 outputs a signal indicating that it is daytime. At this time, if the reheating time is set in the daytime reheating time setting section 6, the reheating time signal is transmitted to the heater energization permission section 7.
is input to.

Further, the heater energization permission section 7 performs the following calculations.

Remaining time for reheating = reheating time setting - accumulated time for energization of heater The heater energization permission section 7 conducts energization unless the remaining time for reheating is O. At the beginning of the daytime period, the cumulative time of the heater energization time integration section 8 is 0, so if the daytime retrieval time setting section 6 sets the reheating time to a value other than O, the heater is energized.

When energization is performed, the temperature control unit 4 controls the energization to the heater 2 based on the water temperature detected by the temperature detection unit 4, so that the hot water in the hot water storage tank 1 is boiled at the set temperature by the amount used. Become. On the other hand, in the heater energization time integration section 8,
The time during which the heater 2 was energized by the temperature control unit 4;
That is, the time during which the heater 2 is ON is accumulated. The heater energization permission section 7 stops energization when the remaining time for reheating becomes O or negative due to elapse of time or the reheating time setting is changed.

While the above operations are being performed, the catch-up setting display section 9 displays the catch-up time setting set in the daytime catch-up time setting section 6, and the catch-up remaining time display section 10 displays the catch-up remaining time. .

In this way, boiling is always performed at the set temperature during the nighttime hours, and during the daytime hours, the daytime catch-up time setting section 6 sets the time to catch up the amount that is insufficient for boiling during the nighttime hours. The setting state of the daytime reheating is displayed on the reheat setting display section 9, and the reheating remaining time display section 10 displays the setting status of reheating during the day.
Since the display shows how much time is left to catch up after checking the display, it is possible to easily check the situation of catching up during the day.

The user sets the catch-up time required for tomorrow using the daytime catch-up time setting section 6 on the previous day. Normally, during the daytime, the power is turned on during the day for the amount of time you set the day before, making up for the amount of heat that would have been insufficient if only the power was turned on at night. The catch-up time set in the daytime catch-up time setting section 6 is valid every day, and unless the setting is changed, the catch-up time can be set at the same time every day. Furthermore, if the user suddenly needs to change the catch-up time on the day, the user looks at the catch-up setting display section 9 and the catch-up remaining time display section 10, and changes the catch-up time setting section 6 during the day. Increase or decrease the Idaki time setting.

For example, let's say that a household that normally uses a three-hour reheating system suddenly finds out that it needs less hot water in the middle of the day, and needs to reduce the reheating time to one hour. At this time, if the display is as shown in Figure 2,
The setting is 3 hours and the remaining time to catch up is 2 hours, so
Since the user has already spent one hour catching up, if the daytime catching up time setting unit 6 changes the catching up time setting so that the remaining time is set to 0, there is no need for two hours of wasteful catching up. On the other hand, when the amount of hot water to be reheated has increased dangerously, the reheating time setting section 6 may be used to increase the reheating time setting.

In addition, in this embodiment, it is possible to set and display the catch-up setting and the catch-up for the day using time.
With hot water storage type electric water heaters, the time required for refilling can be easily converted into the amount of hot water to be boiled by multiplying the ratio of the capacity of the hot water storage heater to the capacity of the boiling heater by the energization time, so the setting or display can be changed to the amount of hot water. Needless to say, it can be done as follows.

Effects of the Invention As is clear from the above explanation, the electric water heater of the present invention can accurately calculate the total amount of reheating time on the day and the remaining time of reheating at the time the display is checked, that is, the time at which the display is checked. You can easily check the remaining time for refilling on the display, which shows the amount of hot water that can be used, so even if you need to change the refill time, you can set the refill time accurately, allowing you to effectively refill without worrying about running out of hot water. Idaki is possible. In addition, it is possible to prevent unnecessary boiling during the daytime, when the charge is higher than during the nighttime hours, making it economical.

[Brief explanation of the drawing]

The first part is a configuration diagram of an electric water heater showing an embodiment of the present invention, and the second part is a plan view showing an example of the daytime catch-up time setting section, catch-up setting display section, and catch-up remaining time display section. , FIG. 3 is a block diagram of a conventional electric water heater. 6... Daytime chasing time setting section, 9...
・Catch-up setting display section, 10...Catch-up remaining time display section. Name of agent: Patent attorney Akira Okaji Hiroshi Baka 2
Figure q

Claims (1)

[Claims] A heater that heats the water in the hot water tank during nighttime and daytime hours, a nighttime setting section that sets the nighttime timezone, and an integration of the heater energization time during daytime hours for reheating during daytime hours. a daytime reheating time setting section that sets the heating time as a value; a heater energization time integration section that integrates the energization time to the heater during the daytime; and a heater energization time integration section that turns on the heater during the night time period set by the nighttime time period setting section. At the same time, during the daytime period, a heater energization permission section turns on the heater energization until the heater energization time accumulated by the heater energization time integration section reaches the daytime reheating time set in the daytime reheating time setting section; A reheating setting display section that displays the time set in the reheating time setting section, and an additional reheating setting display section that displays the difference between the time accumulated by the heater energization time integration section and the setting time set in the daytime reheating time setting section. An electric water heater equipped with a remaining time display section.