JP3156656B2 - Electric hot water storage container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hot water storage container which heats a content liquid by a heater to perform water heating or heat retention to store hot water and to use the hot water as needed, and is used for an electric pot or the like.

[0002]

2. Description of the Related Art In general electric hot water storage containers, after a content liquid is once boiled, the content liquid does not reach a boiling point.
2. Description of the Related Art A heat insulation mode is widely used in which heat is kept at a high temperature such as ℃, and as it is, it can be used as boiling water close to boiling water, and when it is used after being reboiled, it does not take much time for reboil.

On the other hand, in consideration of a case where the temperature is used only for a specific use such as pouring out gyokuro or sencha, which is suitable for a relatively low temperature, such a low heat retention temperature is used.
In some cases, the temperature is selected and set together with the high heat retention temperature or the like so that the heat retention can be performed according to the circumstances and preferences of the user.

[0004]

By the way, electric hot water storage containers have become a necessity in human life now, and are always kept warm regardless of use or non-use so that the contents can be used at any time. Often.

[0005] However, considering that there are times when the frequency of use is low, such as when going to bed or going out, times when it is not used, or times when the probability is high, the heat retention temperature can be selected and set as described above. However, since the apparatus is kept in the normal heat-retention temperature state in consideration of use, much power is wasted.

In view of the above, an object of the present invention is to provide
An object of the present invention is to provide an electric hot water storage container that can save energy (abbreviated as energy saving in the present invention) in accordance with a case where it is expected to be used less frequently or not used, or when such a probability is high.

[0007]

In order to achieve the above-mentioned object, an electric hot water storage container according to the first aspect of the present invention is an electric hot water storage container for heating a content liquid by a heater to boil or keep the temperature and store the hot water. A plurality of normal warming temperatures corresponding to applications and preferences, and an energy saving warming temperature for selecting and setting an energy saving warming temperature lower than each of these normal warming temperatures by a predetermined temperature; and one of the plurality of normal warming temperatures. Priority is initially set, the energization of the heater is controlled so as to keep the content liquid at the selected and set temperature, and the energy saving and warming is performed when the energy saving and warming temperature is selected and set,
The present invention is characterized in that there is provided an energization control means for returning to the heat retention at the initially set heat retention temperature when the energy saving heat retention is ended.

In such a configuration, in addition to the normal heat retaining temperature, an energy saving heat retaining temperature lower than the normal heat retaining temperature by a predetermined temperature is selected and set by the heat retaining setting means. Since the power supply control means controls the power supply to the heater so that it is kept warm, it is possible to keep the temperature at the normal warming temperature in consideration of use, and it is expected that it will be used less frequently, or that it will not be used. When the probability is high, selecting and setting energy saving heat retention can reduce power consumption during that time and achieve energy saving, and it is usually used when it is used or expected to be used in the middle. By selecting and resetting the warming temperature, it is possible to return to such a normal warming temperature and to quickly switch from the energy-saving warming temperature to the warming temperature corresponding to the application and preference compared to the case from normal temperature. Since it becomes possible to start-up use, it does not become a usage particularly inconvenient.

[0009] In particular, after the energy-saving heat retention is selected to save the energy, the temperature is automatically returned to the initially set heat retention state preferentially for normal use.

A plurality of normal heat retaining temperatures are set, for example, to 98 ° C. and 85 ° C., and energy saving heat retaining of 75 ° C. can be set from any of them. Can be set as the energy-saving warming temperature, and for the normal warming temperature of 85 ° C, 75 ° C is set as the energy-saving warming temperature. As a result, the rise from the energy-saving heat retention state to the selected normal heat retention temperature becomes substantially constant.

According to the second aspect of the present invention, in the electric hot water storage container for heating and heating the content liquid by a heater to store and store the hot water, a plurality of normal warming temperatures corresponding to applications and preferences, and a plurality of normal warming temperatures corresponding to the respective normal warming temperatures. A heat retention setting means for selecting and setting an energy saving heat retention temperature lower than a predetermined temperature, and one of the plurality of normal heat retention temperatures is preferentially initialized, and the content liquid is kept at the selected and set temperature. In addition to controlling the energization of the heater so that it does, the energy-saving heat retention temperature is selected and set, the energy-saving heat retention is performed, and when the energy-saving heat retention is finished, the heat is kept at the initially set heat retention temperature without boiling. It is characterized by having an energization control means for returning to.

[0012] In such a configuration, in addition to the first aspect of the present invention, further, the content liquid is returned from the energy-saving heat retention to the normal heat retention without boiling the content liquid.

According to a third aspect of the present invention, in any one of the first and second aspects of the present invention, the control means further inhibits a predetermined operation input during energy saving and heat keeping.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are described below.
This will be described in detail with reference to the drawings together with embodiments.

In this embodiment, as shown in FIGS.
A discharging means 200 which heats the content liquid by the heater 3 to perform water heating and heat retention, and discharges the content liquid to the outside of the container 6 through the lead-out path 7 by the electric pump 14 so as to be usable.
In the case of a household electric kettle having a mark. However, the discharging means 200 is not essential.

The container 6 is constituted by housing an inner container 2 made of an aluminum plate in an outer member 1 made of a steel plate, and made of a synthetic resin for connecting the outer member 1 and the inner container 2 with each other at both mouths. The cover 31 of the body 6 is attached to the shaft 33 by a bearing portion 32 provided at the rear of the shoulder member 8.
It is pivoted so that it can be opened and closed. The lid 31 is urged in the opening direction by a spring (not shown). The lid 31 is kept closed by the engagement of the locking member 36 provided at its free end with the locking portion 8a of the shoulder member 8 by the bias of the spring 36a, and the locking member 3 is locked by the unlocking member 37.
6 is retracted against the spring 36a to release the engagement with the locking portion 8a, and when the hand is released from the unlocking member 37, the lid 31 is automatically opened by the bias of the spring.

The lid 31 is made of synthetic resin and is formed hollow by combining a surface plate 39a and a lower plate 39b. An inner lid 34 made of a stainless steel plate is attached below the lower plate 39b. This inner lid 34 closes the mouth of the inner container 2. A seal packing 35 sandwiched between the inner lid 34 and the lid 31 is provided on the outer periphery of the inner lid 34, and the seal packing 35 seals between the inner lid 34 and the mouth of the inner container 2. Between the lower plate 39b of the lid 31 and the inner lid 34, the lid 3
1 is provided with a steam vent passage 139 communicating with the outside,
It is possible to prevent the internal pressure from being abnormally increased due to the steam generated inside. A water stop valve 40 for turning over is provided at a portion where the steam vent passage 139 is opened in the inner container 2 to prevent the contents liquid from flowing out through the steam vent passage 139 when the container body 6 is turned over. .

The electric pump 14 is located in the middle of the outlet path 7 and immediately below the outlet 2a of the inner container 2 to which the outlet path 7 is connected.
Pumping-out type, which is fed out to the discharge port 11. However, the present invention is not limited to this, and any type of electric pump can be used. For example, it is also possible to supply pressurized air into the inner container 2 by an electric pump to push out the content liquid to the outlet path 7 and discharge it from the discharge port 11. Further, the content liquid can be pressurized and discharged by a manual pump instead of the electric pump.

The lead-out path 7 rises between the inner container 2 and the exterior body 1 and reaches a beak-shaped protruding portion 9 which protrudes in a beak shape to the front surface of the container body 6 provided on the shoulder member 8. A discharge port 11 is opened downward in the portion 9, and a liquid discharged from the discharge port 11 is supplied to a liquid injection guide 13 formed on a bottom 12 of the beak-shaped protrusion 9.
, And flows out to the outside through the liquid.

Since the rising portion 7a of the lead-out path 7 has the same liquid level as the liquid level in the inner container 2, this liquid level is detected by a liquid amount detecting means 17 of a capacitance type or a photocoupler type.
3 are provided. Alternatively, the rising amount 7a of the lead-out path 7 may be a transparent tube, and this may be displayed from the outside through a liquid amount display window provided in the outer case 1 so that the liquid amount can be displayed. The liquid amount detected by the liquid amount detecting means 137 is displayed on a liquid amount display panel 22a provided on the front surface of the container 6 as shown in FIG.

In the first embodiment, the liquid amount detecting means 137
Is the predetermined lower limit liquid volume H1, and the full liquid is higher than the predetermined full liquid level H, the full liquid level or more, and the normal liquid levels 1 to 5 between these are set to the corresponding heights. Liquid level sensors Fmin, F1 to F such as photocouplers
5. Individual detection by Fover.
Corresponding to this, the liquid amount display panel 22a has
As shown in the figure, a lower limit liquid amount lamp Lmin for indicating that the content liquid has a predetermined lower limit liquid amount H1, a predetermined full liquid level H
And a normal liquid level lamp L1 to L5 for indicating that the liquid level is equal to or higher than the full liquid level. The number of stages for normal liquid level detection and display can be set variously as needed.

In the case of the liquid amount detection based on the capacitance, a continuous change in the liquid amount can be detected, but it is simpler and easier to see the display in a stepwise manner.

The liquid amount detecting means 13 at the rising portion of the outlet path 7
Immediately above the valve 7, a valve chamber 16 accommodating a water stop valve 15 at the time of overturning is provided, and when the body 6 rolls over, the content liquid is supplied to the outlet path 7.
Through to the outside.

As shown in FIG. 5, the operation panel 22b provided on the upper surface of the beak-shaped projection 9 has a hot water supply key 23 for discharging a liquid content such as a resin spring, a reboil / descaling selection key 125, and a discharge key. Lock / unlock key 126, cup noodle timer key 127, and related lock / unlock indicator lamp 126a, boiling lamp 12
5a, a descaling lamp 125b, a cup noodle timer lamp 127a, a discharge lamp 128, and a warning lamp 129 are provided. On an operation panel substrate 20 provided inside the operation panel 22b, various switches facing the various operation keys are provided. The various display lamps are mounted as LEDs or the like, and a microcomputer or the like shown in FIG.

A circuit box 17a is integrally formed downward on a synthetic resin bottom member 17 attached to the lower end of the exterior body 1, and the heater 3 and the electric pump 14 are set in the operation box 22b in the circuit box 17a. The control board 5 of the control device 130 for controlling the drive according to the mode is accommodated and mounted. A bottom cover 18 is attached to the opening of the bottom member 17 and a rotating seat 24 is fitted therein. A temperature sensor 4 is applied to the lower surface of the inner container 2 together with the heater 3. The control device 130 also supplies the alternating current as it is to the heater 3a and the heat retaining heater 3b to perform water heating and heat retention.

In particular, in the first embodiment, when the content liquid is heated by the heater 3 to boil water and keep warm water to store hot water, a plurality of normal warming temperatures set according to applications and preferences, and the plurality of normal warming temperatures are set. 3 and 4 for selecting and setting an energy saving heat retention temperature lower than a predetermined temperature with respect to the normal heat insulation temperature to be performed.
And heat insulation setting means 310 shown in FIG.
The microcomputer 130 controls the energization of the heater 3 so as to keep the content liquid at the temperature set by the control unit. Thereby, the first setting means 31
At 0, in addition to a plurality of normal warming temperatures corresponding to the application and preference, an energy saving warming temperature lower than the normal warming temperature by a predetermined temperature is also selected and set, and the content liquid is warmed at the set warming temperature. The energization control means 130a controls the energization of the heater 3 so that it can be kept at various normal insulation temperatures in consideration of use, and it can be said that the user goes shopping a little while sleeping or napping. In cases such as when the frequency of use is expected to be low, or when it is expected that it will not be used, or when such probability is high, select and set energy-saving heat retention to reduce power consumption during that time and achieve energy saving. It can be used by people coming in the middle of energy-saving warming, or by selecting and resetting normal warming when use is expected, returning to such normal warming temperature, Compared with the case of, since the energy saving insulation temperature to be raised used up prematurely usually retained temperature, does not become a usage particularly inconvenient.

In one embodiment, the normal temperature is 98 ° C.
The heat insulation, the heat insulation at 85 ° C., and the energy conservation heat insulation are at 75 ° C.
0 is a heat retention setting key 310a for setting each,
310b and 310c are individually provided. However, a rotary operation method using one key may be adopted.

As mentioned above, the normal temperature of 98.degree.
Although it is possible to set an energy-saving heat retention of 75 ° C. from any of the above-mentioned temperatures, as still another embodiment, 98 ° C.
For example, 85 ° C is set as the energy saving temperature for the normal temperature of 85 ° C, and 75 ° C is set as the energy saving temperature for the normal temperature of 85 ° C. The temperature can be the energy-saving heat-retaining temperature, whereby the rise from the energy-saving heat-retaining state to the selected normal heat-retaining temperature becomes almost constant.

In this embodiment, the heat retention time setting means 3 shown in FIGS. 3 and 4 for selectively setting the heat retention time in energy saving heat retention.
11 and during the heat retention time set by the heat retention time setting means 311, energization of the heater 3 is controlled so as to keep the content liquid at a predetermined energy-saving heat retention temperature. The microcomputer includes a second energization control means 130b shown in FIG. 6 which preferably has an internal function of a microcomputer for controlling energization of the heater 3 so as to keep the content liquid at an insulated temperature corresponding to a preference.

When the energy saving time is set by the heat retention time setting means 311, the second power supply control means 1
30b operates to control the energization of the heater 3 so as to keep the content liquid at a predetermined energy-saving heat-retaining temperature until the time of the set energy-saving heat-retention temperature elapses. By keeping energy conservation and warming when not in use, or during such probable times, it is possible to reduce wasteful power consumption when keeping the regular thermal insulation state for the intended use and taste. When the heat retention time has elapsed, the second power supply control means 130b
Automatically returns to the normal warm state, so that there is no hindrance to normal use thereafter. Even in the event that the content liquid is used in the middle of energy conservation, if the content liquid is boiled, etc., it is possible to start up to a predetermined temperature or a boiling state relatively early compared to the rise from room temperature. The time will not be long.

In one embodiment, there are three types of energy saving time: 3 hours, 6 hours, and 9 hours. In order to make these settings, in the liquid amount display panel 22a, the heat retention time setting means 311 uses the energy saving time. Time setting keys 311a, 311
b and 311c individually. However, this can also be a rotary operation method using one key.

Further, the second control means 130b, when the set energy-saving heat retention time has elapsed, once boil the content liquid and then energize the heater 3 so as to keep the content liquid at the normal temperature. It is controlled to sterilize medium-temperature germs, etc., that have proliferated in the energy-saving heat-retention state due to boiling after energy-conservation heat retention. Also do
Thereafter, the state can be shifted to a normal heat retaining state.

However, the operation panel 22b also has the first
Heat retention setting means 310d and second heat retention setting means 310e
Is provided, and 98 ° C.
One of the normal warming temperatures of 85 ° C. is selected and set in a rotary manner, the state is displayed by lamps 310d1 and 310d2, and energy saving warming at a specific temperature of 75 ° C. is set by the second warming setting means 310e. In addition, the state can be displayed on the lamp 310e1. However, this can be done independently.

In this embodiment, as described above, the liquid amount display panel 2 as the liquid amount display means for displaying the liquid amount of the content liquid.
2a, the liquid amount display panel 22a is switched to a setting display state relating to heat retention by an operation of setting means relating to heat retention, for example, a setting operation by the first and second setting means 310 and 311. An internal function of the microcomputer for performing display according to the setting of 311 includes a display control unit 130c shown in FIG. Thus, when the setting units 310 and 311 relating to heat retention are operated, the liquid amount display panel 22a displays the display control unit 13.
The display is switched to the setting display relating to heat retention by 0c, and the display corresponding to the setting relating to the heat retention is performed. Therefore, the setting relating to the heat retention can be performed based on this display without any special display means dedicated thereto.

Further, when the liquid amount detecting means 137 for detecting the liquid amount of the content liquid contained in the container 6 detects that the content liquid exceeds the predetermined upper limit liquid level or higher, the control device is activated. A warning control means 130d as an internal function of 130 activates a warning means formed by a warning lamp 129, a buzzer BZ or the like.

As described above, when the content liquid exceeds the predetermined upper limit liquid level, the liquid amount detecting means 137 detects the liquid level higher than the upper limit liquid level,
Based on this detection, the fourth control means 130d, which preferably has an internal function of the microcomputer, activates the warning means. Therefore, it is easy for the user to know that the use state is equal to or higher than the upper limit liquid level and to cope with it. It is easy to prevent use in

Further, the discharge means 200 constituted by the electric pump 14 and the outlet path 7 is used to discharge the liquid content to the outside of the container 6 through the outlet path 7 rising at the front of the container 6. Thus, the liquid amount detecting means 137 detects the liquid level on the rising portion 7a side of the outlet path 7 of the container 6. As one embodiment, the liquid level of the content liquid at the same level as in the inner container 2 is detected in the rising portion 7a.
The present invention is not limited to this, as long as the liquid level on the rising portion 7a side of the liquid storage area such as the inner container 2 can be detected, and the method and specific structure of the liquid level detection are not particularly limited. In this case, when the vessel 6 is tilted toward the rising portion 7a of the outlet path 7,
The liquid level on this side particularly rises as indicated by H2 in FIG. 1, but when the liquid level becomes equal to or higher than a predetermined upper limit liquid level, the liquid amount detecting means 1
37 detects that the liquid level is equal to or higher than the upper limit liquid level, and a warning is given by the warning means by the warning control means 130d, so that the body 6 is not tilted any more or returned to the original state. And the body 6 is a rising portion 7 of the lead-out path 7.
It is easy to prevent the content liquid from overflowing through the lead-out path 7 inclining to the a side.

The liquid storage container of the present embodiment is further provided with a heating means 201 for heating the content liquid by the heater 3 as described above.
A microcomputer provided with a third energization control means 130e which preferably has an internal function of a microcomputer which shuts off energization of the heater 3 when the content liquid is heated by the heater 3 when the liquid level is higher than the upper limit liquid level is detected. The heater 3 is automatically turned off at the time of detection of the liquid level above the upper limit as described above, so that it overflows by any chance and prevents the leaked contents liquid from affecting the user and equipment. It is easy to do, and the safety of equipment and use can be improved.

In this embodiment, the liquid amount detecting means 1
37 also includes a safety control unit 130f that also detects a predetermined lower limit liquid amount of the content liquid, and that has an internal function of a microcomputer that activates a warning unit such as the warning lamp 129 or the buzzer BZ based on the detection of the lower limit liquid amount. ing. Thereby, when the liquid amount detecting means 137 detects the lower limit liquid amount, the safety control means 130f activates the warning means, and the user can determine that the lower limit liquid amount is attained without providing any special warning means other than the above. , And it is easy to prevent the state from being fired.

Further, as one example of this embodiment, a liquid amount display panel 22a is provided as a display means for displaying the liquid amount of the content liquid, and the liquid amount display panel 22a is provided with a lamp Lover which is equal to or higher than the upper limit liquid level. Since the detection above the upper limit liquid level is displayed, the state above the upper limit liquid level is easily recognized by the user with a series of liquid amount displays, and it is more easily noticed by itself or together with the warning by the warning means. Cheap.

One embodiment shared by the liquid amount display panel 22a for displaying the setting state relating to the heat retention is shown below.
As shown in FIG. 3 and FIG. 4, the above-mentioned heat retention setting keys 310a, 310b, 310c and energy saving time setting keys 311a, 311b, 311c are arranged adjacent to the lower limit liquid amount lamp Lmin and the normal liquid level lamps L1 to L5. In the heat retention display state, the heat retention setting keys 310a, 310b, 310
c, energy saving time setting keys 311a, 311b, 311c
Lower limit liquid amount lamp Lm corresponding to the operated one of
in, one of the normal liquid level lamps L1 to L5 lights or blinks, and the heat retention setting keys 310a, 310b, 310
c, energy saving time setting keys 311a, 311b, 311c
Indicates that the warming state corresponding to the operated one has been set.

Heat setting key 310a, 310b, 310
c, energy saving time setting keys 311a, 311b, 311c
Are set so that no other key operation is performed for a predetermined time after the key operation, so that the heat retention setting corresponding to the key operation is performed. In addition, if a new heat retention setting operation is performed in various heat retention setting states, it is needless to say that the heat retention state corresponding to the newly set key is reset.

As one embodiment, a liquid volume display / heat retention display switching key 321 is provided adjacent to these display units and below the display unit in this embodiment, and a liquid volume display mode lamp 321a corresponding to the operation thereof. , Heat retention display mode lamp 321
b is provided, and a liquid level display / heat retention display switching key 321 is provided.
By the operation of the rotary system, the liquid amount display state and the heat retention display state are sequentially switched by the seventh control means 130g shown in FIG. 6 in which the internal functions of the microcomputer are suitable. As a result, the current liquid amount and the current setting state related to heat retention can be checked at any time as needed. However, various settings related to heat retention may be made only by switching to the heat retention display state using the liquid amount display / heat retention display switching key 321.

It should be noted that even if the setting operation for heat insulation is not performed when the power is turned on, it is possible to maintain the heat insulation at 98.degree.
It is preferable that one of the heat retention is set with priority.

FIG. 7 shows a specific example of the above-described various heat retention settings and operation control based on the settings. To explain this, when the setting by the heat retention setting key 310a is performed, the corresponding normal liquid level lamp L5 is lit to indicate that the 98 ° C. heat retention is set, and the corresponding heat retention temperature setting is performed. Then, the heat retention control based on this setting is performed. When the setting operation with the heat retention setting key 310b is performed, the corresponding normal liquid level lamp L4 is turned on to indicate that the 85 ° C. heat retention is set, and the corresponding heat retention temperature setting and this setting are performed. The heat retention control based on is performed.

When a setting operation is performed by the heat retention setting key 310c, the corresponding normal liquid level lamp L3 is turned on to indicate that the energy saving heat retention at 75 ° C. is set, and the corresponding heat retention temperature is set. And the energy-saving heat-retention control based on this setting is performed. Table 1 below shows the relationship between each heat retention setting and the heat retention temperature in this case.

[0047]

[Table 1] When the energy saving time setting operation is performed by the energy saving time setting key 311a, the corresponding normal liquid level lamp L2 is turned on to indicate that the energy saving heat retaining state is set for 3 hours. Calculate the timer value for energy saving heat retention for 3 hours. When the energy saving time setting operation is performed using the energy saving time setting key 311b, the corresponding normal liquid level lamp L1 is turned on to indicate that the energy saving heat retention is set for 6 hours. Calculate the timer value for energy saving heat retention for a time. When the energy saving time setting operation is performed by the energy saving time setting key 311c, the corresponding normal liquid level lamp Lmin is turned on to indicate that the energy saving heat retention is set for 9 hours. Calculate the timer value for energy saving heat retention for a time. Table 2 below shows the relationship between each energy saving heat retention setting and the calculated timer value T in this case.

[0048]

[Table 2] After the calculation of the timer value T, after the time corresponding to the calculated timer value T has elapsed, the heat retention is stopped, the count of the off timer for switching to the normal heat retention is started, and the re-boiling / decaling selection key 125, and the discharge lock The input of the / lock release key 126 is prohibited, and the liquid amount display is turned off. As a result, the user is notified that the apparatus is in the energy-saving and heat-retaining state, thereby preventing the content liquid from being discharged and used as it is. However, this is not required.

When the off-timer ends in the above energy-saving and heat-retaining state, a water boiling step is performed to once boil the liquid content, and thereafter, the initial setting value is returned to the normal heat-retention state of, for example, 98 ° C. The display control is released, and the control state of the normal temperature keeping state of 98 ° C. is continued thereafter. However, it is also possible to control the normal heat-retention state after the content liquid is raised to the normal heat-retention temperature without boiling when the energy-saving heat-retention is completed. The water heating step at the end of the energy saving heat retention is performed for a time corresponding to the remaining amount of the content liquid so that the content liquid boils or rises to a predetermined normal heat retention temperature. Table 3 below shows the relationship between the content liquid amount and the water boiler process execution time in this case.

[0050]

[Table 3] In addition, it is also preferable to lower the heat retention temperature from the set temperature in accordance with the liquid amount detected by the liquid amount detecting means 137. In this manner, the temperature is high even though the amount of liquid is small, and it can be prevented that the non-use state of the content liquid continues to be ignited without being noticed, and even if the temperature is low, By selecting a boiling operation when using the content liquid, it is possible to start up from the normal temperature to the required content temperature earlier than required, and it is easy to replenish when noticing that it is low when using the content liquid. Can also.

[0051]

According to the electric hot water storage container of the present invention, in addition to the normal heat retaining temperature, the heat retaining setting means selects and sets the energy saving heat retaining temperature lower than the normal heat retaining temperature by a predetermined temperature. The energization control means controls energization of the heater so that the content liquid is kept at the set temperature, so that it is possible to keep the temperature at the normal temperature that is conscious of use, and to use it infrequently. If it is expected that it will not be performed, or if such a probability is high, by selecting and setting energy saving heat retention, it is possible to reduce power consumption during that time and achieve energy saving, and it will be used in the middle, Alternatively, by selecting and resetting the normal warming temperature when use is expected, the normal warming temperature can be returned to such a normal warming temperature, and the energy saving warming temperature can be adjusted to the intended use and preference compared to the case of normal temperature. Since it becomes possible to increase use up early to warm temperature was, it does not become a use on a particular inconvenience. In particular, after the energy-saving heat retention is selected to save energy, the temperature is automatically returned to the initially set heat retention state with priority for normal use.

According to the electric hot water storage container of the second aspect of the present invention,
In addition to the first aspect of the present invention, returning from the energy-saving heat retention to the normal heat retention is performed without boiling the content liquid.

According to the electric hot water storage container of the third aspect of the present invention,
In any one of the first and second aspects of the present invention,
The control means is prohibited from performing a predetermined operation input during energy saving and heat keeping.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one example of an electric pot according to Embodiment 1 of the present invention.

FIG. 2 is a sectional view of a front portion of the electric pot of FIG. 1;

FIG. 3 is a front view of the electric pot of FIG. 1;

FIG. 4 is a front view of a liquid amount display panel of the electric pot of FIG. 1;

FIG. 5 is a plan view of an operation panel of the electric pot of FIG. 1;

FIG. 6 is a control circuit diagram of the electric pot of FIG. 1;

FIG. 7 is a flowchart showing a main control sequence related to the present invention of the control circuit of FIG. 6;

[Explanation of symbols]

 2 Inner container 3 Heater 6 Body 7 Outgoing path 7a Rising section 22a Liquid level display panel 130 Controller 130a First control section 130b Second control section 130c Third control section 130g Seventh control section 137 Liquid level detection Means Fmin Lower limit liquid level detection sensor F1 to F5 Liquid level detection sensor Fover Upper limit liquid level or higher detection sensor Lmin Lower limit liquid level lamp L1 to L5 Liquid level lamp Lover Upper limit liquid level or higher lamp 310 Heat retention setting means 311 Energy saving heat retention time setting means

Claims (3)

(57) [Claims] Claims: 1. An electric hot water storage container that heats and heats a content liquid by a heater to store and heat water, and a plurality of normal heat retaining temperatures corresponding to applications and tastes, and a predetermined temperature lower than each of these normal heat retaining temperatures. A heat-retention setting means for selecting and setting an energy-saving heat-retention temperature; and a heater for preliminarily initializing one of the plurality of normal heat-retention temperatures and keeping the content liquid at the selected and set temperature. Power supply control means to control the energization of the battery, perform energy-saving warming when the energy-saving warming temperature is selected and set, and return to the warming at the initially set warming temperature when ending the energy-saving warming. An electric hot water storage container characterized by the following. 2. An electric hot water storage container that heats and heats the content liquid by a heater to store the hot water and keep the temperature warm, wherein a plurality of normal warming temperatures corresponding to uses and preferences and a predetermined temperature lower than each of the normal warming temperatures. A heat-retention setting means for selecting and setting an energy-saving heat-retention temperature; and a heater for preliminarily initializing one of the plurality of normal heat-retention temperatures and keeping the content liquid at the selected and set temperature. Energization control means for controlling the energization of the battery, performing energy conservation when the energy saving heat retention temperature is selected and set, and returning to the heat retention at the initially set insulation temperature without boiling when ending the energy saving heat retention. An electric hot water storage container comprising: 3. The electric hot water storage container according to claim 1, wherein the control unit prohibits a predetermined operation input during energy saving and heat retention.