JP2001070158A - Electric kettle, division heater and hot water supplier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the handleability of turning hot water to a high temperature and supplying it in a short time when it is a small amount even when the large amount of water or the hot water during heat insulation close to a rated capacity is put inside a container. SOLUTION: Inside the container 31 provided with a heater 3, a flowing water path 33 is provided and mounted between the bottom surface of the container 31 so as to cover the heater 3 and a partition plate 34 provided with a bubble discharge hole 37 on a peak part and a water conducting tube 39 extended upwards from a water discharge hole 32 on the bottom surface of the container 31 and opened near an upper end are provided. The water inside the partition plate 34 is mainly heated in a short time after starting hot water boiling and taken out by a centrifugal pump 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater mainly used in ordinary households or offices, for heating and keeping a liquid contained therein, a split heater as a means for quick boiling such as an electric water heater, and the like. It relates to a water heater.

[0002]

2. Description of the Related Art A conventional electric water heater of this type is as shown in FIG. Reference numeral 1 denotes a container which is open at the top, has a flange 2 provided at the upper end outward, and a heater 3 serving as a heating means at the bottom. Reference numeral 4 denotes an upper frame provided with a cylindrical holding portion 5 at the center and for locking the container 1 to the holding portion 5 through a packing 6 in a watertight manner. A hinge 7 is provided at one end. 8 is the upper frame 4
Is a main body that holds the container 1 while holding the container.

A cover 9 covers the upper portion of the container 1. A pin 10 attached to one end of the cover 9 is fitted on the hinge 7 of the upper frame 4 to rotate. The lid 9 is provided with a steam port 11, and a through hole 12 is provided penetrating from the upper side to the lower side of the lid 9.
A steam passage 13 that connects the first through hole 12 with the through hole 12 is attached. In the vicinity of the lid 9 below the through hole 12, a steam vent hole 14 is provided.
Are provided. Reference numeral 15 denotes a seal packing provided on the outer periphery of the lid 9, which hermetically seals the flange 2 of the container 1 by closing the lid 9.

Reference numeral 16 denotes a centrifugal pump which constitutes a water supply device having one end connected to the bottom of the container 1 and the other end connected to a water supply pipe 17 opened to the outside of the main body 8.

A lock member 18 is provided on the side of the cover 9 opposite to the pin 10 and is urged from inside to outside by a spring 19 and slides from outside to inside against the force of the spring 19. is there.
Reference numeral 20 denotes an operation knob for sliding the lock member 18.
Reference numeral 21 denotes a locking portion provided on the side of the upper frame 4 opposite to the hinge 7. The pin 10 is fitted to the hinge 7, the lid 9 is rotated, the lock member 18 is locked to the locking portion 21, and the fitting of the lid 9 to the upper frame 4 is completed. At this time, the seal packing 13 of the lid 9 hermetically seals the flange 2 at the upper end of the container 1.

Reference numeral 22 denotes a connection section for supplying electricity from the outside. Reference numeral 23 denotes a temperature detecting element provided in contact with substantially the center of the bottom of the container 1. Reference numeral 24 denotes a control circuit that controls the power supply to the heater 3 by a signal from the temperature detection element 23 and controls the circuit of the operation unit 25.

In the electric water heater constructed as described above, water is supplied to the container 1. When the lid 9 is closed around the pin 10, the locking member 18 is locked to the locking portion 21, and the seal packing 15 seals the flange 2 in a watertight manner.

Next, electricity is supplied from the connection section 22. The temperature detecting element 23 detects the temperature of the hot water through the bottom of the container 1, and the control circuit 24 energizes the heater 3 with a signal from the temperature detecting element 23 to heat the water. Eventually, when the water temperature rises and boils, the temperature detecting element 23 detects this, and the control circuit 24 cuts off the power supply to the heater 3. Thereafter, the control circuit 24 sends a signal from the temperature detecting element 23 to the heater 3. The current is controlled to maintain a predetermined temperature.

When hot water is desired, the operation unit 25 is operated to operate the centrifugal pump 16 and supply hot water via the water supply pipe 17.

[0010]

In the electric water heater of the above-mentioned conventional construction, when a rated amount of water is put into the container 1, the hot water cannot be used until the whole is boiled. In the case of pumping, if the rated capacity of the container 1 is about 3 L, it takes about 15 to 20 minutes to wait for the water heater,
If you want hot water in a hurry, it was inconvenient.

Further, in order to save power of the main body 1 and the like, it takes about 3 to 5 minutes to use the boiling water at a temperature of about 85.degree.

Therefore, the above-mentioned conventional problems are solved,
Even if a large amount of water near the rated capacity or hot water is kept in the container, an electric water heater that can supply hot water at high temperature in a short time is required.

Further, the conventional water heater has the same problem,
There was a need for an easy-to-use water heater capable of rapidly raising the temperature of the liquid and also raising the temperature of the liquid in the entire container in the same time as in the past.

On the other hand, there is an example of an electric chiller / heater as a means for rapid boiling, and the means described in Japanese Utility Model Publication No. 61-170981 is known. The configuration is as shown in FIG. Reference numeral 401 denotes a tank comprising a cooling / heating unit 402 and a water storage unit 403 disposed on the cooling unit 402. A cooling unit 404 is provided on the outer periphery of the outer wall of the cooling / heating unit 402, and a heater 405 is mounted on the bottom of the cooling / heating unit 402. 406 is tank 4
01 is a partition plate (divided heater) that separates the cooling / heating unit 402 and the water storage unit 403 from the water storage unit 403 to the cooling / heating unit 4.
A water passage section 407 is provided to guide water to the chamber 02 and to allow bubbles generated in the cooling and heating section 402 to escape to the upper portion during heating. A control plate 410 including a temperature variable portion 408 made of a shape memory alloy and a water-passage shielding plate 409 provided at the end thereof is attached to the cooling / heating portion 402 side of the water-passage portion 407.

According to the above configuration, the opening area of the water passage section 407 can be changed depending on whether it is cold water or hot water.
In particular, at the time of warm water, an operation is performed to reduce the opening area of the water passage section 407, so that the time of temperature rise of water in the cooling and heating section 402 can be shortened.

However, in the above-mentioned conventional technology, there is a problem that the heating efficiency is reduced because the heated water always escapes to the water storage portion 403 as long as the water passage portion 407 exists even if the opening area is reduced during heating. In addition, water passage section 407
When the is fully closed, the temperature rise time is shortened and the heating efficiency is increased, but the air bubbles generated in the cooling and heating section 402 have no escape place, and when they accumulate to some extent, the partition plate (partition plate) 40
Float 6 and escape from it. At that time, there is a problem that the hot water is cooled because the cold water enters the cooling and heating unit 402 at a stretch, and particularly when the water in the cooling and heating unit 402 is boiled, a large amount of bubbles are generated. Become noticeable.

Accordingly, an object of the present invention is to solve the above-mentioned conventional problems. Even if a large amount of water close to the rated capacity or hot water being kept warm is contained in the container, the hot water can be used in a short time. An electric water heater with a useful function that can be supplied at a high temperature, an easy-to-use water heater that can quickly raise the temperature of the liquid and raise the temperature of the whole container in the same time as before, and without reducing the heating efficiency It is intended to provide a divided heater which can well release the air bubbles generated especially in the case of boiling.

[0018]

According to a first aspect of the present invention, there is provided an electric kettle comprising: a container for storing a liquid; heating means for heating the container or the liquid in the container; a lid for covering an upper portion of the container;
A partition plate having a bubble discharging hole at the top and arranged in the container and partitioning it into a side having the heating means and a side not having the heating means, wherein a water discharge hole is provided in a bottom surface of the container covered with the partition plate. It is.

According to the first aspect of the present invention, even if a large amount of water close to the rated capacity or hot water is kept in the container, the water or a part of the hot water is heated to a high temperature in a short time. It can be supplied in a convenient manner.

According to a second aspect of the present invention, there is provided an electric water heater, wherein a container for storing the liquid, heating means for heating the container or the liquid in the container, a lid for covering the upper portion of the container, and a water supply device for extracting the liquid in the container. And, provided with a bowl-shaped partition plate disposed in the container, providing a water outlet hole to the water supply device on the bottom of the container covered with the partition plate, forming a flowing water path between the lower end of the partition plate and the bottom of the container. A water discharge pipe is provided at the top of the partition plate, and a water guide pipe extending upward from the water discharge hole and opening near the upper end is provided.

According to the second aspect of the present invention, when the rated amount of water is put into the container and the water heater is started, the water in the container is divided into two rooms by the partition plate, and the inside of the partition plate covering the heating means is provided. Temperature rises before the water outside the partition plate and boils. When a water supply device such as a centrifugal pump is operated, the hot water in the partition plate is discharged first, and the water outside the partition plate is supplied into the partition plate from below the partition plate through the flowing water path at the lower end. Are sequentially discharged.
For this reason, even if a large amount of water close to the rated capacity is contained in the container, if the amount of hot water is smaller than the space in the partition plate, the hot water is supplied at a high temperature in a short time. Also, when the water is reboiled at a low temperature of about 85 ° C. when the temperature is kept warm, the hot water in the partition plate is first boiled. Supplied and can be made easy to use.

The electric water heater according to the third aspect is the second aspect.
In the above, the flowing water path is arranged substantially uniformly over the entire circumference of the partition plate.

According to the third aspect of the present invention, in addition to the same effects as those of the second aspect, the amount of high-temperature hot water supplied from the inside of the partition plate can be increased.

The electric water heater according to the fourth aspect is the second aspect.
In, the water outlet of the container is provided near the outer periphery of the bottom of the container,
The top of the partition plate is located almost directly above the upper end of the water pipe.

According to the electric water heater of the fourth aspect, in addition to the same effects as those of the second aspect, the hot water can be easily discharged from a water supply device such as a centrifugal pump.

The electric water heater according to the fifth aspect is the second aspect of the present invention.
In, the water outlet of the container is provided near the outer periphery of the bottom of the container,
The top of the partition plate is set almost directly above the upper end of the water pipe, and the water flow path is provided on the opposite side of the water discharge hole.

According to the electric water heater of the fifth aspect, in addition to the same effect as the second aspect, the amount of high-temperature hot water to be supplied can be increased while the hot water is easily discharged from a water supply device such as a centrifugal pump. .

[0028] The electric water heater according to the sixth aspect is the second aspect.
In the above, the path between the opening near the upper end of the water pipe and the water outlet of the container is used as the main waterway, and the second path leading to the water outlet of the vessel is provided near the lower end of the water pipe to make the water supply path.

According to the electric water heater according to the sixth aspect, in addition to the same effect as the second aspect, after the hot water is supplied by a water supply device such as a centrifugal pump, the amount of the remaining hot water in the container is reduced and the hot water in the container is effectively used. Can be used.

[0030] The electric water heater according to claim 7 is provided in claim 2.
, A double configuration in which the center of the partition plate is an air layer.

According to the electric water heater according to the seventh aspect, in addition to the same effect as in the second aspect, the heat insulating property of the partition plate is increased, so that the water temperature in the partition plate is increased quickly and the temperature of the supplied hot water is reduced. Can be higher.

[0032] The electric water heater according to the eighth aspect is the second aspect.
In this case, the partition plate has a double structure in which the center is a hollow layer slightly lower than the atmospheric pressure.

According to the eighth aspect of the present invention, in addition to the same effects as those of the second aspect, the heat generated in the partition plate due to the expansion of the hollow layer can be reduced while enhancing the heat insulation of the partition plate. .

The electric water heater according to the ninth aspect is the second aspect.
, The partition plate has a double configuration in which the center of the partition plate is a vacuum hollow layer.

According to the electric water heater of the ninth aspect, in addition to the same effects as those of the second aspect, the stress generated in the partition plate by the expansion of the hollow layer is greatly reduced while the heat insulation of the partition plate is greatly improved. You can do it.

According to a tenth aspect of the present invention, there is provided the electric water heater according to the second aspect, further comprising a valve which is opened at a rise and closed at a fall in a bubble discharge hole of the partition plate, and has a valve of 2 to 5 grams per square centimeter. It is weighted.

According to the electric water heater of claim 10,
In addition to the same effects as in claim 2, the air bubbles generated inside the partition plate are effectively discharged, so that water outside the partition plate is less likely to enter the partition plate when the bubbles are discharged, and the hot water in the partition plate is heated to a high temperature. Can be maintained.

According to an eleventh aspect of the present invention, in the second aspect, the volume of the bottom surface side of the container covered by the partition plate is about 1000 ml or less.

According to the eleventh aspect of the present invention,
There is an effect similar to that of the second aspect.

According to a twelfth aspect of the present invention, there is provided a split heater comprising: a container having a heater for heating a stored liquid; a partition plate for separating the stored liquid into a heater side and a non-heater side; and a valve mounted on the top of the partition plate. And a hot water outlet for taking out the liquid on the heater side divided by the partition plate is provided in the container.

According to the divided heater according to the twelfth aspect, the valve does not open until the bubbles on the heater side of the partition plate accumulate in a certain amount, and since the valve is always closed, the heating efficiency does not decrease. In addition, when air bubbles accumulate in a certain amount or more or when they are in a boiling state, the valve opens to release the air bubbles, so that the partition plate does not float and the hot water does not cool down at once. Therefore, stable early boiling with good heating efficiency can be performed.

According to the thirteenth aspect of the present invention, there is provided a split heater according to the first aspect.
2, wherein activated carbon is provided on the heater side of the partition plate.

According to the split heater of the thirteenth aspect, in addition to the same effect as the twelfth aspect, the water purification performance such as chlorine removal can be improved.

According to a fourteenth aspect of the present invention, there is provided a split heater according to the first aspect.
2. In 2, the partition plate is detachably attached to the container.

According to the split heater of the fourteenth aspect, in addition to the same effect as the twelfth aspect, for example, a convex portion is formed on the inner surface of the container, and the partition plate is provided with an annular rib capable of engaging with the convex portion. Since the partition plate is provided with a magnet attached to the partition plate, it is possible to prevent the partition plate from falling off when the water in the container is discarded.

According to the fifteenth aspect of the present invention, there is provided a split heater according to the first aspect.
2, a gap for a flowing water path is provided at the bottom of the partition plate.

According to the fifteenth aspect of the present invention, in addition to the same effects as in the twelfth aspect, the partition heater is provided with a projection at the bottom of the partition plate to form a constant gap with the container. The supply of the liquid to the plate can be easily and stably performed.

The split heater according to the sixteenth aspect is the first aspect.
In 2, the sensor for detecting the liquid temperature on the side opposite to the heater of the partition plate is provided on the outer surface of the container facing the liquid on the side opposite to the heater of the partition plate.

According to the split heater of the sixteenth aspect, in addition to the same effect as the twelfth aspect, the liquid temperature of the partition plate on the side opposite to the heater can be reliably detected.

The divided heater according to the seventeenth aspect is the first aspect of the invention.
2, a sensor for detecting the liquid temperature on the side opposite to the heater of the partition plate is provided so that the liquid on the side opposite to the heater of the partition plate does not reach the boiling point.

According to the seventeenth aspect of the present invention, in addition to the same effect as the twelfth aspect, the liquid temperature on the side opposite to the heater of the partition plate does not reach the boiling point and is kept at a predetermined liquid temperature or less. And a decrease in the amount of hot water can be prevented. Further, if the liquid temperature on the side opposite to the heater of the partition plate is prevented from reaching the boiling point, it is possible to suppress the ejection of steam from the steam port of the lid.

The split heater according to the eighteenth aspect is the first aspect.
In 7, the heating is continued even during the removal of the liquid on the heater side of the partition plate.

According to the split heater of the eighteenth aspect, in addition to the same effect as the seventeenth aspect, the liquid temperature on the side opposite to the heater of the partition plate does not reach the boiling point and the partition temperature is not higher than the predetermined liquid temperature. By continuing the heating during the removal of the liquid on the heater side of the plate, the next tapping after the tapping can be performed quickly. In addition, the entire container can be quickly boiled.

The split heater according to the nineteenth aspect is the first aspect of the invention.
2, a temperature variable section for controlling the opening and closing of the valve according to the level of the liquid temperature on the heater side of the partition plate is provided.

According to the split heater of the nineteenth aspect, in addition to the same effect as the twelfth aspect, the liquid heater on the side opposite to the heater of the partition plate can be heated while maintaining the liquid temperature on the heater side of the partition plate constant. It can be carried out.

The split heater according to the twentieth aspect is the first aspect.
2, an inner heater for heating the liquid on the heater side of the partition plate and an outer heater for heating the liquid on the side opposite to the heater are provided.

According to the twentieth aspect of the present invention, in addition to the same effects as those of the twelfth aspect, the liquid heater on the side opposite to the heater of the partition plate can be heated while maintaining the liquid temperature on the heater side of the partition plate constant. It can be carried out.

A water heater according to a twenty-first aspect covers a container for holding a liquid, heating means for heating the liquid, and a bottom of the container.
A partition plate forming a substantially closed space, a check valve provided at the upper part of the partition plate for discharging boiling air bubbles out of the partition plate, an internal temperature detecting means for detecting a temperature of a liquid inside the partition plate, and a partition plate An external temperature detecting means for detecting an external temperature is provided, and the heating means is controlled by the temperature detected by the external temperature detecting means.

According to the water heater of the twenty-first aspect, since the inside of the partition plate is substantially sealed, only the liquid inside can be concentrated and heated, and the temperature can be raised rapidly. In addition, when the liquid inside the partition plate starts boiling, bubbles are released from the check valve at the top of the partition plate, and at this time, hot water also escapes outside the partition plate, so that the temperature of the liquid in the entire container can be raised simultaneously. . Also, by the external temperature detecting means,
By controlling the heating means, the entire liquid in the container can be kept at a predetermined temperature.

A water heater according to a twenty-second aspect is the water heater according to the twenty-first aspect, wherein the liquid inside the partition plate is discharged by a liquid pump communicating with the internal space of the partition plate.

According to the water heater of the twenty-second aspect, in addition to the effect of the twenty-first aspect, when a small amount of high-temperature water is required, hot water can be supplied in a short time.

According to a twenty-third aspect of the present invention, in the water heater according to the twenty-first aspect, the heating means includes a high-power main heater for rapidly heating the liquid in the container and a small-output auxiliary heater for gradually heating the liquid. It is a thing.

According to the water heater of the twenty-third aspect, in addition to the effect similar to the twenty-first aspect, when the liquid in the container reaches a predetermined temperature by the high-power main heater, it is switched to the low-power auxiliary heater. Temperature control can be performed precisely.

A water heater according to a twenty-fourth aspect of the present invention is the water heater according to the twenty-first aspect, wherein the control means for intermittently operating the heating means when the temperature detected by the external temperature detecting means becomes close to the boiling point of the liquid to reduce the amount of heating to the liquid. It is provided.

According to the water heater of the twenty-fourth aspect, in addition to the same effect as the twenty-first aspect, by reducing the force of bubble generation during boiling, even if the lid is opened in the event of boiling, the hot water can be supplied. There is no spillover and safety can be improved.

According to a twenty-fifth aspect of the present invention, in the twenty-third aspect, when the temperature detected by the external temperature detecting means becomes close to the boiling point of the liquid, the heating means is switched from the main heater to the auxiliary heater to energize, and the amount of heating of the liquid is increased. Control means for reducing the number

According to the water heater of the twenty-fifth aspect, in addition to the same effects as those of the twenty-third aspect, by reducing the force of bubble generation during boiling, even if the lid is opened during boiling, the hot water is supplied. There is no blow-through and safety can be improved.

A water heater according to a twenty-sixth aspect of the present invention is the water heater according to the twenty-second aspect, further comprising a control means for stopping the energization of the heating means when the liquid inside the partition plate is near the boiling point and the liquid is discharged by the liquid pump. is there.

According to the water heater of claim 26, in addition to the same effects as in claim 22, calcium contained in water,
Prevents the scale generated by the precipitation of substances such as silicon and magnesium from rising into the partition plate with the force of boiling, suppresses suction of scale into the pump, and reduces scale clogging of the pump. .

A water heater according to a twenty-seventh aspect is the water heater according to the twenty-first aspect, wherein the upper surface of the water-absorbing pipe communicating with the outside of the container and protruding above the bottom of the container is close to the upper surface of the internal space of the partition plate.

According to the water heater of the twenty-seventh aspect, in addition to the same effect as that of the twenty-first aspect, only the hot liquid staying in the upper part in the partition plate can be discharged.

A water heater according to a twenty-eighth aspect of the present invention is the water heater according to the twenty-seventh aspect, wherein the periphery of the container side opening of the water absorption pipe is covered with a filter.

According to the water heater of the twenty-eighth aspect, in addition to the same effects as the twenty-seventh aspect, calcium, silicon, magnesium can be obtained by covering the periphery of the container-side opening of the water absorption pipe with a filter such as a stainless steel mesh filter. And the like can be further reduced from being sucked by the pump.

[0074]

(Embodiment 1) A first embodiment of the present invention will be described with reference to FIG. Flange 2, heater 3 constituting heating means, upper frame 4, holding portion 5, packing 6, hinge 7, body 8, lid 9, pin 1
0, through hole 12, steam vent hole 14, seal packing 1
5, a centrifugal pump 16 and a water supply pipe 17, which constitute a water supply device,
Lock member 18, spring 19, operation knob 20, locking portion 2
1, the connection part 22, the temperature detection element 23, the control circuit 24, and the operation part 25 have the same shape and function as the conventional example.

In the center of the bottom of the container 31, the centrifugal pump 16
A bowl-shaped partition plate 34 placed with a large diameter in the lower part of the container 3 is provided in the container 3 while maintaining a gap serving as a water flow path 33 between the water outlet 32 and the bottom surface of the container 31. The heater 3 is provided so as to be close to the inner diameter of the container 31 so as to surround the heater 3.
And a second space 36 outside the partition plate 34. The material of the partition plate 34 is stainless steel, but is not limited to this. Any material having heat resistance, such as glass, porcelain, or hot water-resistant resin, may be used. At the top of the partition plate 34, a bubble discharge hole 37 whose total area is sufficiently reduced to about one tenth of that of the flowing water path 33 is provided, and extends upward from the water discharge hole 32, and an opening 38 is formed near the upper end. A water pipe 39 is provided.

The operation of the above configuration will be described. Container 3
When water is put into the container 1 and the connection portion 22 is connected to a power supply and the heater 3 is energized, the water inside the container 31 is heated. The inside of the container 31 is partitioned by the partition plate 34 into the first space 3 on the heater 3 side.
5 and the second space 36 on the lid 9 side,
The water in the first space 35 on the side of the heater 3 is rapidly heated and its temperature rises. A foam outlet 37 is provided at the top of the partition plate 34, but the amount of leakage from the foam outlet 37 is very small.
Only a part of the amount of heat received from the heater 3 leaks into the second space 36. For this reason, in the first space 35, the electric capacity of the heater 3 is about 1200 W and the capacity of the first space 35 is 7
If it is about 00 mL, it will boil in about 5 to 6 minutes according to the experiment. The temperature of the container 31 can be detected by the temperature detecting element 23 and the reaching of boiling can be detected by the control circuit 24. When the centrifugal pump 16 is operated after boiling, the hot water in the first space 35 is taken out from the opening 38 at the upper part of the water pipe 39, passes through the flowing water path 33 at the lower end side of the partition plate 34 by the amount of hot water, and flows into the second space 36. Is supplied into the first space 35,
The hot water in the first space 35 is not immediately mixed with the hot water due to a difference in specific gravity due to the temperature difference. Then, the water guided from inside the second space 36 gradually rises from the bottom side of the container 31 and approaches the wall surface of the partition plate 34. Since the opening 38 of the water guide pipe 39 is located near the top of the partition plate 34, a considerable amount of the volume in the partition plate 34 is maintained at a high temperature and supplied with hot water.
Specifically, if the inner volume of the partition plate 34 is about 700 mL, about 500 mL can be obtained at a high temperature of about 85 ° C.

As described above, even if a large amount of water close to the rated capacity is contained in the container 31, if a small amount of hot water is used, it is not necessary to wait for all the water in the container 31 to boil. Can be supplied. The same applies to the case where a small amount of high-temperature hot water boiling inside the container 31 at about 85 ° C. is obtained. In this case, high-temperature hot water can be obtained in about 1 minute, and only the hot water inside the partition plate is reheated. Therefore, there is also an effect of reducing power consumption.

(Embodiment 2) A second embodiment of the present invention will be described with reference to FIG. Flange 2, heater 3 constituting heating means, upper frame 4, holding section 5, packing 6, hinge 7, body 8, lid 9, pin 10, through hole 1
2, steam vent hole 14, seal packing 15, centrifugal pump 16 constituting water supply device, water supply pipe 17, locking member 1
8, spring 19, operation knob 20, locking portion 21, connection portion 2
2. The temperature detecting element 23, the control circuit 24, and the operation unit 25 have the same shape and function as the conventional example. Further, the container 31, the water outlet 32, the opening 38, the water pipe 39, the partition plate 41, the bubble discharging hole 42, the sliding valve 43, and the first space 4 inside the partition plate 41.
4. The second space 45 outside the partition plate 41 is the same as in the first embodiment.

The difference is that the gap A between the container 31 forming the flowing water path 51 and the partition plate 41 is provided substantially uniformly over the entire circumference of the partition plate 41. In addition, a sliding valve 43 is provided which closes the bubble discharging hole 42 from above, the sliding portion penetrates the bubble discharging hole 42, and has a locking portion at the lower end.

The operation of the above configuration will be described. When the centrifugal pump 16 is operated after the water in the partition plate 41 boils, the hot water in the first space 44 is supplied to the opening 38 above the water pipe 39.
And is supplied to the outside of the main body. The low-temperature water in the second space 45 is supplied into the first space 44 through the flowing water path 51 on the lower end side of the partition plate 41 by the amount of hot water supplied. Are not immediately mixed due to the specific gravity difference due to the temperature difference. And the second space 4
The low-temperature water guided into the inside 5 gradually rises from the bottom side of the container 31 and approaches the upper wall surface of the partition plate 41. At this time, the gap A forming the flowing water path 51 is
1 is uniformly distributed over the entire circumference of the first space 44, and water is uniformly guided from the entire circumference of the partition plate 41 into the first space 44. And approach the opening 38 of the water guide pipe 39 almost horizontally. For this reason, from the first space 44 inside the partition plate 41, the opening 38
High-temperature hot water can be efficiently taken out before the low-temperature water layer reaches, so that the amount of high-temperature water supplied from the inside of the partition plate can be increased. Further, a bubble discharging port 37 is provided at the top of the partition plate 41, but the sliding valve 4 is normally provided.
3, bubbles generated when the water in the first space 44 in the partition plate 41 becomes high temperature accumulate under the sliding valve 43, and the sliding valve 43 operates upward by the buoyancy of the bubbles. When the air bubbles escape, the sliding valve 43 closes by its own weight. In this way, the bubble discharge hole 42 is usually closed, and the amount of heat escaping from the first space 44 to the second space 45 is reduced, and the temperature of hot water supplied from the inside of the partition plate can be increased.

(Embodiment 3) A third embodiment of the present invention will be described with reference to FIG. Flange 2, heater 3 constituting heating means, upper frame 4, holding section 5, packing 6, hinge 7, body 8, lid 9, pin 10, through hole 1
2, steam vent hole 14, seal packing 15, centrifugal pump 16 constituting water supply device, water supply pipe 17, locking member 1
8, spring 19, operation knob 20, locking portion 21, connection portion 2
2. The temperature detecting element 23, the control circuit 24, and the operation unit 25 have the same shape and function as the conventional example.

The difference is that the water outlet hole 62 of the container 61 is provided near the outer periphery of the bottom surface of the container 61, and the bubble discharge hole 66 is disposed almost directly above the water pipe 64 having the upper end as the opening 63, as the top of the partition plate 65. When the water in the first space 67 in the partition plate 65 nears the boiling point, the bubble discharge hole 66 opens due to the buoyancy of the bubbles generated when the water is near the boiling point, and when the bubbles pass through the second space outside the partition plate 65. The point is that a sliding valve 69 for closing is provided. 70 is a flowing water path.

With such a configuration, the area immediately below the water outlet 62 avoids the control circuit 24 and is close to the water pipe 17, which is an appropriate position for the arrangement of the centrifugal pump 16. Since the water supply path to the pump 16 can be minimized, a pressure drop between the water outlet 62 and the centrifugal pump 16 is unlikely to occur, and the temperature of the hot water in the first space 67 is about 98 to 99 ° C, which is close to 100 ° C. Even at a high temperature, cavitation, which occurs due to a decrease in boiling point due to a pressure drop, is unlikely to occur. Therefore, the performance of the centrifugal pump 16 is prevented from deteriorating, and hot water is easily discharged.

(Embodiment 4) A fourth embodiment of the present invention will be described with reference to FIG. Flange 2, heater 3 constituting heating means, upper frame 4, holding section 5, packing 6, hinge 7, body 8, lid 9, pin 10, through hole 1
2, steam vent hole 14, seal packing 15, centrifugal pump 16 constituting water supply device, water supply pipe 17, locking member 1
8, spring 19, operation knob 20, locking portion 21, connection portion 2
2. The temperature detecting element 23, the control circuit 24, and the operation unit 25 have the same shape and function as the conventional example. The third embodiment is the same as the third embodiment in that a water outlet 62 of the container 61 is provided near the outer periphery of the bottom surface of the container 61 and a water pipe 64 having an opening 63 is provided.

The difference is that a gap, which is a flowing water path 73 between the lower end of a partition plate 72 in which a bubble discharge hole 71 is disposed and the bottom of which is located almost immediately above the upper end of a water guide pipe 64, and It is provided on the opposite side.

With this configuration, since the path between the tap hole 62 and the centrifugal pump 16 is short, the pressure drop at the centrifugal pump is small, and the hot water can be easily discharged. Further, in the first space 74 in the partition plate 72, the opening 63 of the water pipe 64 is formed.
Is located at a position deviated to the front upper part, so that when the flowing water path 73 is provided on the opposite side of the water discharge hole 62 immediately below the water guiding pipe 64, the hot water in the first space 74 is easily pushed out to the water guiding pipe 64 side,
Hot water in the first space 74 can be effectively extracted, and the amount of hot water to be supplied can be increased.

(Embodiment 5) A fifth embodiment of the present invention will be described with reference to FIG. Flange 2, heater 3 constituting heating means, upper frame 4, holding section 5, packing 6, hinge 7, body 8, lid 9, pin 10, through hole 1
2, steam vent hole 14, seal packing 15, centrifugal pump 16 constituting water supply device, water supply pipe 17, locking member 1
8, spring 19, operation knob 20, locking portion 21, connection portion 2
2. The temperature detecting element 23, the control circuit 24, and the operation unit 25 have the same shape and function as the conventional example.

The difference is that the water outlet 8 at the center of the container 81 is different.
A bowl-shaped partition plate 84 having a size close to the inner diameter of the container 81 such that an outer peripheral portion surrounds the heater 3 while maintaining a gap between the container 2 and the bottom surface of the container 81 as a flowing water path 83. A first space 85 inside the partition plate 84, a second space 86 outside the partition plate 84, a bubble discharge hole 87 at the top of the partition plate 84, and a sliding valve 88 that normally closes the bubble discharge hole 87.
And the upper end is extended from the water discharge hole 82 and the opening 8 is formed near the upper end.
9 in that an auxiliary hole 91 communicating with the water discharge hole 82 is provided at the lower end of the water pipe 90.

With such a configuration, in addition to the main water path extending from the opening 89 at the upper end of the water guide pipe 90 to the water discharge hole 82 of the container 81, the second path leading from the auxiliary hole 91 near the lower end of the water guide pipe 90 to the water discharge hole 82 is provided. Is configured as a water supply channel. Container 81
When taking out hot water close to the rated capacity in the container, if there is no auxiliary hole 91, the hot water in the container 81 will be
9 If it is lower than the lower end H1, it cannot be taken out.
Is provided at the lower end of the water pipe 90 so that the water surface is
Hot water can be taken out until the lower end reaches H2, and the amount of remaining hot water in the container 81 after the hot water is discharged by the centrifugal pump 16 can be reduced.

(Embodiment 6) A sixth embodiment of the present invention will be described with reference to FIG. In the sixth embodiment, instead of the partition plate 84 of the fifth embodiment, the partition plate 101 is composed of an inner plate 102 and an outer plate 103 made of stainless steel, and the inner plate 102 and the outer plate 103 are formed at both ends. The entire circumference is welded and sealed, and the center of the
This is a double configuration. Since the air layer 104 becomes a heat insulating layer, the heat insulating property of the partition plate 101 increases, the amount of heat escaping to the outside via the partition plate 101 decreases, the water temperature inside the partition plate 101 rises faster, and the inside of the partition plate 101 is heated. Thereafter, the hot water temperature is hardly reduced due to the heat insulating effect, so that the hot water temperature to be supplied becomes high. As a result, power consumption can be reduced. Although the inner plate 102 and the outer plate 103 are joined by welding, the present invention is not limited to this, and other methods such as brazing may be used.

(Embodiment 7) A seventh embodiment of the present invention will be described with reference to FIG. In the seventh embodiment, instead of the partition plate 84 of the fifth embodiment, the partition plate 111 is composed of an inner plate 112 and an outer plate 113 made of stainless steel, and the inner plate 112 and the outer plate 113 are formed at both ends. To form a double structure in which the center of the partition plate 111 is a hollow layer 114. The hollow layer 114 has a pressure of 0.75 to 0.95 at normal temperature of 10 to 30 ° C., which is slightly lower than the atmospheric pressure. As a result, the hollow layer 114
However, when the temperature is normal temperature and the atmospheric pressure is 100 ° C., the pressure rises to about 1.3 atm, an internal pressure is generated, and a stress is generated in the partition plate 111, and the partition plate 111 is deformed and a defect is generated in a welded portion. However, if the internal pressure of the partition plate 111 at room temperature is set to 0.75 to 0.95 atm, the pressure of the hollow layer rises and falls by 1 atm by the boiling water, and the heat of the partition plate 111 is insulated. With the presence of the hollow layer 114, the stress generated in the partition plate due to the expansion of the hollow layer 114 can be reduced while the property is enhanced.

(Eighth Embodiment) An eighth embodiment of the present invention will be described with reference to FIG. In the eighth embodiment, instead of the partition plate 84 of the fifth embodiment, the partition plate 121 is composed of an inner plate 122 and an outer plate 123 made of stainless steel, and the inner plate 122 and the outer plate 123 are formed at both ends. The partition plate 121 has a double configuration in which the interior of the partition plate 121 is a hollow layer 124. The hollow layer 124 has a vacuum of less than 1/10000 torr. This degree of vacuum is almost the same as that of a vacuum thermos.
And the hollow layer 124 has a low density of air, so that there is almost no thermal expansion of the air, and the stress generated in the partition plate 121 by the internal pressure due to the expansion is greatly increased. And the durability of the partition plate 121 can be increased.

(Embodiment 9) A ninth embodiment of the present invention will be described with reference to FIG. In the ninth embodiment, for example, in the sixth to eighth embodiments, the bubble discharging hole 132 of the partition plate 131 is closed from above, the sliding portion penetrates the bubble discharging hole 132, and the lower end is formed. And a sliding valve 133 having a locking portion. The sliding valve 133 is always closed, and the sliding valve 1 with respect to the opening area of
The operating force, weighing 33, is 2 to 5 grams per square centimeter. In this case, the partition plate 131
It does not operate with the push-up force caused by the decrease in specific gravity when the water inside boils, and bubbles generated when the water boils are generated by the sliding valve 1.
33, the sliding valve 133 is not always opened, and the partition plate 13 is removed from the bubble discharging hole 132 without being opened.
1 Reduce leakage of hot water to the outside. When the operating force of the sliding valve 133 is increased, the sliding valve 133 operates when a large amount of air bubbles accumulate in the partition plate 131.
When the air bubbles occupying the inside volume go out at once, external water is supplied into the partition plate 131, and the temperature of the hot water in the partition plate 131 decreases. On the other hand, in the case of 5 grams per square centimeter, the temperature of the hot water when the air bubbles in the partition plate 131 are discharged is about 5 ° C., which is a level that does not hinder practical use. In this way, the bubbles generated inside the partition plate 131 are effectively discharged, and the water outside the partition plate is less likely to enter the partition plate when the bubbles are discharged, and the hot water in the partition plate can be maintained at a high temperature.

(Embodiment 10) A tenth embodiment of the present invention will be described with reference to FIG. In FIG. 10, 21
Reference numeral 1 denotes a container having a heater 212 built in the bottom thereof.
Reference numeral 213 denotes a bowl-shaped partition plate for partitioning the inside of the container 211, which is provided at the bottom of the container 211 and so as to cover the heater 212. Reference numeral 214 denotes a valve, which is attached to the highest position of the partition plate 213. A water inlet (water outlet) 215 is provided on the heater side of the partition plate 213, and is provided in the container 211. 216 is a water guide pipe, 217 is a pump, and 218 is a discharge port, which constitutes a water guide path. A sensor 219 such as a thermistor detects the water temperature of the partition plate 213 on the heater side. Reference numeral 220 denotes an exterior body that houses built-in components such as the container 211. Reference numeral 221 denotes a lid, which is rotatably attached to the exterior body 220. The lid 221 has a vapor port 222 formed therein. As a matter of course, watertightness is maintained for the water conveyance path and the like. Hot water is generated on the heater side of the partition plate 213, and hot water can be discharged. When the pump 217 is actually driven to discharge hot water, the heater 212 during hot water supply is basically not energized. This is to prevent a decrease in flow rate due to entrainment of bubbles generated due to heater energization. Naturally, since cold water enters the partition plate 213 on the heater side after tapping, it is necessary to wait until hot water is generated again.

By the way, the partition plate 213 and the valve 214 are required to have a specific gravity of 1 or more. The partition plate 213 does not float sufficiently at the time of supplying water or boiling of water on the heater side and the non-heater side of the partition plate 213. It must be adjusted by specific gravity and volume (wall thickness) so as to have negative buoyancy. If the valve 214 is too light, warm water on the heater side of the partition plate 213 will easily escape, and the heating efficiency will decrease. On the other hand, if the weight is too large, the temperature of the partition plate 213 on the heater side when the valve 214 is opened becomes large, or bubbles are excessively accumulated on the heater side of the partition plate 213, so that the partition plate 213 is easily floated. Therefore, the valve 214 does not open until a certain amount of air bubbles accumulates.
When the air bubbles accumulate over a certain amount or are in a boiling state, the air must be adjusted to have an appropriate negative buoyancy so as to open and let the air bubbles escape.

With the above arrangement, the valve 214 is not opened until a certain amount of air bubbles on the heater side of the partition plate 213 accumulates.
The heating efficiency does not decrease because it is always closed, and it is good.On the contrary, when the air bubbles accumulate over a certain amount or in a boiling state, the valve 214 opens to allow the air bubbles to escape, so that the partition plate 213 does not float, and at a stretch. Hot water does not cool. Therefore, stable early boiling with good heating efficiency can be performed.

In the configuration shown in FIG.
For the position 5, the higher the height, the more efficiently hot water can be taken into the center of the bottom of the container 211, and a certain amount of hot water below the actual heating volume on the heater side of the partition plate 213 was discharged. The temperature drop at the time can be suppressed. In addition, the higher the height, the less likely it is that the scale generated in the case of hard water is sucked into the pump.

To add further about the valve 214,
Figure 1 shows the negative buoyancy, stroke, and opening area (π / 4) D ²
By adjusting it appropriately as shown in FIG.
The saturation temperature of the heater 13 can be not only about 100 degrees but also a certain temperature.

(Eleventh Embodiment) An eleventh embodiment of the present invention will be described with reference to FIGS. 12 (a), 12 (b) and 12 (c). 12A and 12B, reference numeral 223 denotes activated carbon, 224 denotes a case for accommodating the activated carbon 223, and is constituted by a frame 225 and a mesh 226.
Is provided. The partition plate 213 has a mounting hole 228
Is provided, and can be freely engaged with the claw 227 of the case 224. In this case, air bubbles accumulate between the heater 212 and
It is necessary to provide a sufficient gap so that the air layer is not formed and the baking is not performed, and the configuration is such that bubbles do not easily accumulate.

With the above configuration, the water purification performance such as chlorine removal can be improved by the catalytic action of the activated carbon 223.

Note that the configuration shown in FIG. 12C may be adopted. In this case, 229 is activated carbon and 230 is activated carbon 2
29, the base 231 and the mesh 23
The case 230 may be attached to the hot water port 215.

The other parts are the same as in the tenth embodiment.

(Twelfth Embodiment) Next, a twelfth embodiment of the present invention will be described with reference to FIGS. In FIGS. 13A and 13B, reference numeral 233 denotes a convex portion,
1 is formed on the inner surface. The partition plate 213 is provided with an annular rib 234 that can be engaged with the convex portion 233, and a concave portion 235 is formed at one place. The setting of the partition plate 213 is performed as follows. The partition plate 213 is placed on the bottom of the container 211 with the positions of the concave portion 235 and the convex portion 233 aligned, and the partition plate 213 is rotated.

With the above configuration, it is possible to prevent the partition plate 213 from falling off when the lid 221 is opened and the water in the container 211 is discarded.

It is to be noted that even if the convex portion 233 is not formed on the container 211, a protruding portion such as a pipe may be used instead of the convex portion 233 if it is provided.

The other points are the same as in the tenth embodiment.

(Thirteenth Embodiment) A thirteenth embodiment of the present invention will be described with reference to FIG. In FIG. 14, 23
Reference numeral 6 denotes a magnet, which is attached to the partition plate 213. When the partition plate 213 is set in the container 211,
And magnetically coupled. In this case, the container 211 naturally has magnetism, and for example, must be ferritic stainless steel or the like.

According to the above configuration, it is possible to prevent the partition plate 213 from falling off when the lid 221 is opened and the water in the container 211 is discarded. The container 21
Since it is magnetically coupled to the partition plate 1, the specific gravity of the partition plate 213 does not necessarily need to be set to 1 or more, and it is not necessary to make the partition plate 213 have a sufficient negative buoyancy so that it does not float. And lighter weight. In some cases, the cost can be reduced.

The other points are the same as in the tenth embodiment.

(Embodiment 14) Next, a fourteenth embodiment of the present invention will be described. In the present invention, the partition plate 213 is made of resin. In this case, the resin must have excellent hot water resistance, and examples thereof include filler / glass reinforced polyphenylene sulfide, polysulfone, polyether sulfone, and syndiotactic polystyrene. From the viewpoint of specific gravity, polyphenylene sulfide having a relatively large specific gravity is advantageous.
Furthermore, since it is made of resin, the heat insulation is very good.

As described above, since the partition plate 213 is made of a resin having a high heat insulating property, heat radiation from the partition plate 213 to the side opposite to the heater is small, and the heating efficiency can be increased. Further, since it is made of resin, it can be formed into a shape having a high degree of freedom, and is relatively inexpensive.

The other points are the same as in the tenth embodiment.

(Embodiment 15) A fifteenth embodiment of the present invention will be described. In the present invention, the partition plate 213 is made of metal. In this case, it is necessary that the metal be excellent in corrosion resistance. For example, stainless steel, titanium alloy and the like can be mentioned, but SUS304 stainless steel is advantageous comprehensively from the viewpoint of heat insulation and cost.

As described above, since the partition plate 213 is made of a tough metal, the partition plate 213 is strong without chipping or cracking at the time of dropping. In addition, it is easy to remove dirt and sanitary. Press molding is relatively inexpensive.

The other points are the same as in the tenth embodiment.

(Embodiment 16) A sixteenth embodiment of the present invention will be described. In the present invention, the partition plate 213 is made of ceramic (porcelain, glass). In this case, the heat insulating property is approximately between the resin and the metal.

As described above, since the partition plate 213 is made of ceramic (porcelain, glass), it is chemically stable.
There is almost no risk of corrosion.

The other points are the same as in the tenth embodiment.

(Embodiment 17) A seventeenth embodiment of the present invention will be described with reference to FIG. In FIG. 15, 23
Numeral 7 denotes a double structure portion of the partition plate, which forms a heat insulating layer by infiltrating water. The double structure 237 is provided with several holes 238 for allowing water to slightly circulate and preventing water from completely stagnating.

According to the above configuration, good heat insulating properties can be obtained, and the heating efficiency can be improved.

The other points are the same as in the tenth embodiment.

(Embodiment 18) An eighteenth embodiment of the present invention will be described with reference to FIG. In FIG. 16, 23
Reference numeral 9 denotes a projection, which is provided at several places on the bottom of the partition plate 213, and
11 and a certain gap.

With the above configuration, the supply of water to the partition plate 213 can be easily and stably performed. In particular,
During the heating of the water on the heater side of the partition plate 213, the valve 214 opens when bubbles accumulate, and water is supplied from the bottom of the partition plate 213. At this time, it is necessary to reduce the change in water temperature on the heater side of the partition plate 213. There is an effect, and as a result, it is convenient for sensing the sensor 219. This is because if there is no gap, the cold water is rapidly supplied to the heater side of the partition plate 213, and the water temperature change tends to be large. However, since there is a certain gap, the cold water flows to the heater side of the partition plate 213 at a relatively slow flow rate. It is supplied and the change in water temperature is reduced. In the case of FIG. 3, from the viewpoint of sensing, it is more convenient to take care that the cold water flow does not directly glaze on the temperature detecting element 23 because the temperature of the temperature detecting element 23 does not change rapidly. It is. In short, the sliding valve 69 or the water pipe 64, the temperature detecting element 23, and the flowing water path 70 (gap) should not be on the same line. When a certain amount of hot water is to be discharged, a flowing water path 70 is provided near the water pipe 64.
It is better not to form (gap). By doing so,
It becomes difficult to draw in cold water on the side of the partition plate 65 opposite to the heater.

The other points are the same as in the tenth embodiment.

(Embodiment 19) A nineteenth embodiment of the present invention will be described with reference to FIG. In FIG. 17, 24
Numeral 0 denotes a projection, which is provided at several places on the outer periphery of the partition plate 213.

With the above configuration, the partition plate 213 and the container 2
11 and the heater 212 and the partition plate 213.
, The relationship of the shape on the heater side is kept constant, the change in convection is minimized, and stable early boiling can be performed.

The rest is the same as the tenth embodiment.

(Embodiment 20) A twentieth embodiment of the present invention will be described with reference to FIGS. FIG.
9A, reference numeral 241 denotes a sensor such as a thermistor for detecting the water temperature of the partition plate 213 on the side opposite to the heater, and is provided on the outer surface of the container 211. In this case, it is necessary to keep a certain distance between the outer periphery of the partition plate 213 and the container 211 immediately inside the sensor 241 so that the water temperature on the side opposite to the heater of the partition plate 213 can be sufficiently reflected.

With the above configuration, the water temperature of the partition plate 213 on the side opposite to the heater can be reliably detected.

As shown in FIG. 18B, the sensor 24
The attachment 1 may be on the outer bottom surface instead of the outer side surface of the container 211. In this case, the divided heating by the partition plate 213 is performed in the container 2.
It is necessary to remove the outer bottom surface of 11. In this case, in order to sufficiently reflect the water temperature on the side opposite to the heater of the partition plate 213, and so as not to be affected by the hot water leaking from the bottom gap of the partition plate 213, the outer periphery of the partition plate 213 and the portion immediately inside the sensor 241 are used. It is necessary to keep a certain distance between the containers 211. In the case where the gap is provided as in the eighteenth embodiment, no gap is formed near the sensor 241 in either of the examples (a) and (b), and the temperature of the hot water leaking from the gap is reduced. In principle, the sensor 241 is not affected by the influence, so that the temperature of the sensor 241 does not suddenly change, which is convenient for sensing.

The other points are the same as in the tenth embodiment.

(Embodiment 21) A twenty-first embodiment of the present invention will be described. The basic configuration is the same as that of the twentieth embodiment, except that the water temperature on the side opposite to the heater of the partition plate 213 does not reach the boiling point and is equal to or lower than a predetermined water temperature.

Here, the relationship between the water temperature of the partition plate 213 on the side opposite to the heater and the product performance will be described. FIG. 19 shows the relationship between the water temperature on the side opposite to the heater of the partition plate 213 and the amount of hot water per second. The water temperature on the heater side of the partition plate 213 immediately before tapping is always about 100 ° C. The pump used was a rolling diaphragm pump. As shown in FIG. 19, when the water temperature of the partition plate 213 on the side opposite to the heater reaches T1, a bending point at which the amount of hot water starts to decrease appears. The cause of the decrease in the amount of hot water is considered as follows. When the hot water starts to flow, the heater 212 is de-energized, but when the water temperature on the side opposite to the heater of the partition plate 213 is low, the generation of bubbles due to the residual heat of the heater 212 is immediately eliminated, and the influence of the flow reduction due to the entrapment of the bubbles is small. Further, when the water temperature on the side opposite to the heater is low, the temperature of the hot water drawn by the pump is quickly lowered and reaches a critical temperature at which cavitation does not occur. However, the partition plate 21
When the water temperature on the side opposite to the heater 3 becomes high, bubbles due to the residual heat of the heater 212 continue to be generated even during tapping, and the flow rate decreases due to entrainment of the bubbles and the flow rate decreases due to cavitation. Experimentally, T1 is 85-95C.

As described above, since the water temperature of the partition plate 213 on the side opposite to the heater does not reach the boiling point and is equal to or lower than a predetermined water temperature, a decrease in the amount of hot water can be prevented. As a method for solving this, the partition plate 2
When the water temperature on the side opposite to the heater 13 becomes T1 or a water temperature somewhat lower than T1, there is a heating method with less residual heat, that is, a method of switching to a heater with low power consumption or a method of turning on and off the heater. .

A phenomenon in which water on the side of the partition plate 213 opposite to the heater is boiled will be described. When boiling is performed with the partition plate 213 as compared with the case where boiling is performed without the partition plate 213, not only the energy of the bubble generated at the time of normal boiling but also the bubble generated on the heater side of the partition plate 213 is reduced. The energy from the continuous opening of the hot water is added, and the movement of the hot water becomes very large.

However, if the water on the side opposite to the heater of the partition plate 213 is prevented from reaching the boiling point, the above phenomenon does not occur, and the upper surface of the hot water in the container 211 can be stabilized.

(Embodiment 22) Next, a twenty-second embodiment of the present invention will be described. The basic configuration is the same as that of the twentieth embodiment, and the hot water on the heater side of the partition plate 213 does not reach the boiling point of the water on the side opposite to the heater of the partition plate 213 and does not reach a predetermined water temperature. The heating is continued even during the heating.

In the twenty-first embodiment, it has been described that when the water temperature on the side opposite to the heater of the partition plate 213 is low, the influence of the flow rate reduction due to entrainment of air bubbles and cavitation is small.
In the present invention, when the water temperature on the side opposite to the heater of the partition plate 213 is low and entrainment of air bubbles and cavitation hardly occur, heating is actively performed during tapping so that the next tapping can be performed as soon as possible after tapping. Is the purpose. here,
The relationship between the water temperature on the side opposite to the heater of the partition plate 213 and the product performance will be described. FIG. 20 shows the relationship between the water temperature of the partition plate 213 on the side opposite to the heater and the amount of hot water per second. Partition plate 2 just before tapping as in the twenty-first embodiment
The water temperature on the heater side of No. 13 is always about 100 ° C., and the used pump is a rolling diaphragm pump. As shown in FIG. 20, the water temperature of the partition plate 213 on the side opposite to the heater is T.
When it becomes 2, a bending point appears where the amount of hot water starts to decrease. Therefore, heating can be continued even during tapping until the water temperature of the partition plate 213 on the side opposite to the heater reaches T2. Of course,
T2 is lower than the inflection point T1 without heating during tapping. Experimentally, T2 is 50-60 ° C.

As described above, the heating is performed so that the water temperature on the side opposite to the heater of the partition plate 213 does not reach the boiling point, and the heating is continued during the removal of the hot water on the heater side of the partition plate 213 below the predetermined water temperature. By doing so, the next tapping after the tapping can be performed quickly. In addition, the entire inside of the container 211 can be quickly boiled.

(Twenty-third Embodiment) A twenty-third embodiment of the present invention will be described with reference to FIG. In FIG. 21, 24
2 is a valve, 243 is a support part A, 244 is a bias spring,
The bias spring 244 is mounted above the support portion A243 to urge the valve 242 upward, and the support portion A243 is fixed to the partition plate 213. 245 is the support B
And attached to a shaft 246 integrated with the valve. 2
Reference numeral 47 denotes a temperature variable portion made of a shape memory alloy.
43, mounted between the support portions B245. With the above configuration, when the temperature variable section 247 exceeds a certain water temperature, the bias spring 244 biases the valve 242 by
The force by which the temperature variable section 247 attempts to lower the valve 242 becomes superior, and the valve 242 opens. Conversely, when the temperature variable section 247 becomes lower than a certain water temperature, the valve 242 closes.

In the embodiments described above, it is assumed that the water on the heater side of the partition plate 213 is boiled. However, depending on the condition of use, the temperature of the boiled water may be too high. For example, this is the case when extracting coffee or the like, and it is desirable that the water temperature be as constant as possible. Therefore, it is necessary to perform ON-OFF control of the heater 212 so that the water on the heater side of the partition plate 213 does not boil and is stopped at a constant water temperature. For example, when the constant water temperature is 90 ° C., the power supply to the heater 212 stops when the temperature exceeds 90 ° C. However, if the heat insulation of the partition plate 213 is high, the water temperature on the heater side of the partition plate 213 does not easily fall to the water temperature at which the heater 212 is energized again, and the energization interval of the heater 212 is extremely extended,
There is a problem that the water on the side opposite to the heater of the partition plate 213 is hardly heated.

Here, the operation of the valve 242 according to this configuration will be described. For example, when the constant water temperature is 90 ° C., when the temperature exceeds 90 ° C., the energization of the heater 212 stops. On the other hand, if the valve 242 is set to open at 90 ° C., for example, the water temperature on the heater side of the partition plate 213 decreases, the heater 212 is re-energized, and the valve 242 closes.

According to the above configuration, the ON-O of the heater 212
By repeating the FF control and the opening and closing of the valve 242, the partition plate 213
While the water temperature on the heater side is kept constant, the water on the side opposite to the heater of the partition plate 213 can be heated.

The other points are the same as in the tenth embodiment.

Embodiment 24 Next, a twenty-fourth embodiment of the present invention will be described with reference to FIG. In FIG.
Reference numeral 248 denotes an inner heater, which is built in the bottom of the container 211. An external heater 249 is provided on the outer surface of the container 211. Reference numeral 250 denotes an inner sensor, and 251 denotes an outer sensor for detecting the water temperature on the heater side and the non-heater side of the partition plate 213, respectively.

The purpose of this configuration is to make the water temperature on the heater side of the partition plate 213 constant while maintaining the same water temperature as in the twenty-third embodiment.
This is to heat the water on the side of the partition plate 213 opposite to the heater. Here, the operation of the present configuration will be described. First, water on the heater side of the partition plate 213 is heated by the inner heater 248. The inner sensor 250 detects that the water on the heater side of the partition plate 213 has reached a predetermined water temperature, and stops energization of the inner heater 248. Next, energization of the outer heater 249 is started, and water on the side of the partition plate 213 opposite to the heater is heated. If there is hot water on the way and the water on the heater side of the partition plate 213 cools, the power supply to the inner heater 248 is started again, and the power supply to the outer heater 249 is stopped at the same time. Such an operation is repeated until the entire water in the container 211 reaches a constant temperature.

With the above configuration, it is possible to heat the water on the side opposite to the heater of the partition plate 213 while keeping the water temperature on the heater side of the partition plate 213 constant.

Although the power consumption is high, the inner heater 2
48 and the outer heater 249 may be energized simultaneously.

The other points are the same as in the tenth embodiment.

(Twenty-Fifth Embodiment) A twenty-fifth embodiment of the present invention will be described with reference to FIGS. In FIG. 23, reference numeral 301 denotes a container for holding a liquid 302 such as water, and a heater 303 is attached to the bottom of the container 301. At the bottom of the container 301, a material having a higher specific gravity than water,
For example, a partition plate 304 that forms a substantially closed space made of PPS resin or the like is provided. A check valve 305 for discharging bubbles generated by boiling upward is provided above the partition plate 304. The check valve 305 is also made of PPS resin or the like having a higher specific gravity than water, like the partition plate 304. When a gap 306 of about 0.1 to 2 mm is provided at the contact portion between the bottom surface of the partition plate 304 and the bottom surface of the container 301, when water in the partition plate 304 comes out of the check valve 305 by boiling,
The water 302 circulates in the partition plate 304. The gap 306 is formed by providing several projections on the bottom surface of the partition plate 304. 307 is a thermistor A for detecting the water temperature in the partition plate 304, and 308 is a partition plate 3
This is a thermistor B for detecting the water temperature outside the area 04. Reference numeral 310 denotes a liquid pump for discharging hot water, which communicates with the internal space of the partition plate 304, is connected to a water absorbing pipe 311 protruding above the bottom of the container 301, and discharges hot water from the water discharging pipe 312 to the outside. Reference numeral 313 denotes a stainless steel mesh filter that covers the water absorption pipe 311 together with the bottom surface of the container 301. Reference numeral 314 denotes a main body for storing the container 301. A lid 315 that opens and closes when water is poured into the container 301 is provided at an upper portion, and a vapor port 316 for discharging steam to the outside is opened in the lid 315.

In the case of the twenty-fifth embodiment, the container 30
Since the water at one bottom is substantially sealed by the partition plate 304, the heat of the heater 303 can be concentrated and the temperature can be raised rapidly. In the twenty-fifth embodiment, the time required to boil about 250 ml of water was about 2 minutes. At this time, the temperature of the water inside the partition plate 304 is detected by the thermistor A 307, the completion of the water heating is displayed on the display unit (not shown) of the main body, and when the water is discharged by the liquid pump 310, the hot water can be rapidly discharged. it can. Further, when the heating is further continued, the water in the partition plate 304 boils violently, and bubbles are generated. This air bubble causes the check valve 5 to float, and the partition plate 30
At this time, the hot water also simultaneously escapes from the check valve 305, and the entire water 302 is heated and heated.

As shown in FIG. 24A, the operation of the check valve 305 is as follows. When no air bubbles are generated, the top plate 321 comes into close contact with the partition plate 304 to confine the heat. The bubble lifts the check valve 305 upward as shown in FIG.
23 are formed on the top plate 321 independently of each other, so that air bubbles escape from between the side wall a322 and the side wall b323, and the air bubbles escape from above. At this time, the side wall a32 of the check valve 305
2 and the side wall b323 are caught inside the partition plate 304 and do not fall out of the partition plate 304.

Returning to FIG. 23, the heated water 302 enters the partition plate 304 again through the gap 306 formed between the bottom surface of the container 301 and the bottom surface of the partition plate 304, and is circulated and heated. Further, by controlling the heater 303 with the temperature detected by the thermistor B 308, the entire temperature inside the container 301 can be maintained at a predetermined temperature.

Further, since the hot water is discharged by the liquid pump 310 communicating with the internal space of the partition plate 304, when a small amount of high-temperature water is required, hot water can be supplied in a short time.

The heater 303 includes a high-power main heater and a low-power auxiliary heater (not shown). After the main heater has been heated to a predetermined temperature, it is switched to the auxiliary heater to reduce the hysteresis. Temperature control can be performed precisely.

When the water 302 is boiled, when the main heater is energized, bubbles are concentrated and blown up from the upper portion of the partition plate 304, and the boiling force is increased. Therefore, the lid 316 should be opened during boiling. Since there is a risk of hot water spouting, when the temperature becomes close to the boiling point, the main heater is intermittently operated to reduce the momentum of the boiling port, so there is no hot water spouting.

Further, when the temperature becomes close to the boiling point, even if the control for switching from the main heater to the auxiliary heater is performed, the momentum of the boiling can be reduced, and the same effect as described above can be achieved.

The water contains calcium, silicon, magnesium and the like, and these are precipitated in the partition plate 304 by boiling the hot water and are deposited as scale in the partition plate 304. When the liquid pump is operated while boiling, the scale deposited by the boiling is soared in the partition plate 304 and easily enters the water absorption pipe 311 which is the suction port of the liquid pump 310. When the operation is performed, the control to stop the energization of the heater 303 is performed, so that the scale does not rise, the suction of the scale to the liquid pump 310 can be suppressed, and the scale pumping to the liquid pump 310 can be suppressed.

The water absorption pipe 311 is provided on the partition plate 304.
As close to the top as possible.

As a result, the higher the temperature of the water, the lower its specific gravity, and the higher the temperature, the more the water stays in the upper part of the partition plate 304, so that a slightly higher temperature of the water can be discharged.

The water absorption pipe 311 is connected to the filter 313.
Therefore, the scale deposited in the partition plate 304 can be further reduced from being sucked into the liquid pump 310.

The above embodiments may be combined with each other if possible.

In the above embodiment, the volume on the rapid heating side divided by the partition plate is preferably about 1000 ml or less in view of the object of the present invention to shorten the waiting time for temperature rise and the amount of hot water used in cup noodles and the like.

[0164]

According to the electric water heater according to the first aspect,
Even if a large amount of water close to the rated capacity or hot water is kept in the container, the water or a part of the hot water can be heated to a high temperature in a short time and supplied.

According to the electric water heater of the second aspect, when the rated amount of water is put into the container and water heating is started, the water in the container is divided into two rooms by the partition plate, and the inside of the partition plate covering the heating means is provided. Temperature rises before the water outside the partition plate and boils. When a water supply device such as a centrifugal pump is operated, the hot water in the partition plate is discharged first, and the water outside the partition plate is supplied into the partition plate from below the partition plate through the flowing water path at the lower end. Are sequentially discharged.
For this reason, even if a large amount of water close to the rated capacity is contained in the container, if the amount of hot water is smaller than the space in the partition plate, the hot water is supplied at a high temperature in a short time. Also, when the water is reboiled at a low temperature of about 85 ° C. when the temperature is kept warm, the hot water in the partition plate is first boiled. Supplied and can be made easy to use.

According to the third aspect of the present invention, in addition to the same effects as those of the second aspect, the amount of hot water supplied from the inside of the partition plate can be increased.

According to the electric water heater of the fourth aspect, in addition to the same effects as those of the second aspect, the hot water can be easily discharged from a water supply device such as a centrifugal pump.

According to the electric water heater described in claim 5, in addition to the same effect as in claim 2, it is possible to increase the amount of hot water to be supplied while facilitating discharge of water from a water supply device such as a centrifugal pump. .

According to the electric water heater of the sixth aspect, in addition to the same effects as those of the second aspect, after the hot water is discharged by a water supply device such as a centrifugal pump, the amount of remaining hot water in the container is reduced and the hot water in the container is effectively used. Can be used.

According to the electric water heater of the seventh aspect, in addition to the same effects as those of the second aspect, the heat insulating property of the partition plate is enhanced, so that the water temperature in the partition plate rises quickly and the temperature of the supplied hot water is reduced. Can be higher.

According to the electric water heater of the eighth aspect, in addition to the same effects as those of the second aspect, the stress generated in the partition plate due to the expansion of the hollow layer can be reduced while the heat insulation of the partition plate is enhanced. .

According to the electric water heater of the ninth aspect, in addition to the same effects as those of the second aspect, the stress generated in the partition plate due to the expansion of the hollow layer is greatly reduced while the heat insulation of the partition plate is greatly improved. You can do it.

According to the electric kettle of claim 10,
In addition to the same effects as in claim 2, the air bubbles generated inside the partition plate are effectively discharged, so that water outside the partition plate is less likely to enter the partition plate when the bubbles are discharged, and the hot water in the partition plate is heated to a high temperature. Can be maintained.

According to the eleventh aspect of the present invention,
There is an effect similar to that of the second aspect.

According to the divided heater according to the twelfth aspect, the valve is not opened and is always closed until bubbles on the heater side of the partition plate accumulate in a certain amount. In addition, when air bubbles accumulate in a certain amount or more or when they are in a boiling state, the valve opens to release the air bubbles, so that the partition plate does not float and the hot water does not cool down at once. Therefore, stable early boiling with good heating efficiency can be performed.

According to the divided heater according to the thirteenth aspect, in addition to the same effect as the twelfth aspect, the water purification performance such as chlorine removal can be improved.

According to the split heater of the fourteenth aspect, in addition to the same effect as the twelfth aspect, for example, a convex portion is formed on the inner surface of the container, and the partition plate is provided with an annular rib capable of engaging with the convex portion. Since the partition plate is provided with a magnet attached to the partition plate, it is possible to prevent the partition plate from falling off when the water in the container is discarded.

According to the divided heater according to the fifteenth aspect, in addition to the same effect as the twelfth aspect, for example, a projection is provided on the bottom of the partition plate to form a constant gap with the container, thereby achieving the partition. The supply of the liquid to the plate can be easily and stably performed.

According to the split heater according to the sixteenth aspect, in addition to the same effect as the twelfth aspect, the liquid temperature on the side of the partition plate opposite to the heater can be reliably detected.

According to the seventeenth aspect of the present invention, in addition to the same effects as the twelfth aspect, the liquid temperature on the side opposite to the heater of the partition plate does not reach the boiling point and is kept at a predetermined liquid temperature or lower. And a decrease in the amount of hot water can be prevented. Further, if the liquid temperature on the side opposite to the heater of the partition plate is prevented from reaching the boiling point, it is possible to suppress the ejection of steam from the steam port of the lid.

According to the split heater of the eighteenth aspect, in addition to the same effects as the seventeenth aspect, the liquid temperature on the side opposite to the heater of the partition plate does not reach the boiling point and is kept below the predetermined liquid temperature. By continuing the heating during the removal of the liquid on the heater side of the plate, the next tapping after the tapping can be performed quickly. In addition, the entire container can be quickly boiled.

According to the split heater of the nineteenth aspect, in addition to the same effect as the twelfth aspect, the liquid heater on the side opposite to the heater of the partition plate can be heated while the liquid temperature on the heater side of the partition plate is kept constant. It can be carried out.

According to the twentieth aspect of the present invention, in addition to the same effects as in the twelfth aspect, in addition to maintaining the liquid temperature on the heater side of the partition plate constant, the division heater also heats the liquid on the side opposite to the heater side of the partition plate. It can be carried out.

According to the water heater of the twenty-first aspect, since the inside of the partition plate is substantially sealed, only the liquid inside can be concentrated and heated, and the temperature can be raised rapidly. In addition, when the liquid inside the partition plate starts boiling, bubbles are released from the check valve at the top of the partition plate, and at this time, hot water also escapes outside the partition plate, so that the temperature of the liquid in the entire container can be raised simultaneously. . Also, by the external temperature detecting means,
By controlling the heating means, the entire liquid in the container can be kept at a predetermined temperature.

According to the water heater of the twenty-second aspect, in addition to the effect of the twenty-first aspect, when a small amount of high-temperature water is required, hot water can be supplied in a short time.

According to the water heater according to the twenty-third aspect, in addition to the same effect as the twenty-first aspect, when the liquid in the container reaches a predetermined temperature with the main heater having the large output, the liquid heater is switched to the auxiliary heater having the small output. Temperature control can be performed precisely.

According to the water heater of the twenty-fourth aspect, in addition to the same effect as the twenty-first aspect, by reducing the force of bubble generation during boiling, even if the lid is opened during boiling, the hot water is supplied. There is no spillover and safety can be improved.

According to the water heater of the twenty-fifth aspect, in addition to the same effect as that of the twenty-third aspect, by reducing the force of bubble generation during boiling, the hot water can be supplied even when the lid is opened during boiling. There is no blow-through and safety can be improved.

According to the water heater of the twenty-sixth aspect, in addition to the same effects as those of the twenty-second aspect, calcium contained in water,
Prevents the scale generated by the precipitation of substances such as silicon and magnesium from rising into the partition plate with the force of boiling, suppresses suction of scale into the pump, and reduces scale clogging of the pump. .

According to the water heater according to the twenty-seventh aspect, in addition to the same effect as the twenty-first aspect, only the hot liquid staying at the upper part in the partition plate can be discharged.

According to the water heater according to the twenty-eighth aspect, in addition to the same effect as the twenty-seventh aspect, calcium, silicon, magnesium can be obtained by covering the periphery of the container-side opening of the water absorption pipe with a filter such as a stainless steel mesh filter. And the like can be further reduced from being sucked by the pump.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an electric water heater showing a first embodiment of the present invention.

FIG. 2 is a sectional view of an electric water heater according to a second embodiment of the present invention.

FIG. 3 is a sectional view of an electric water heater according to a third embodiment of the present invention.

FIG. 4 is a sectional view of an electric water heater according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view of an electric water heater according to a fifth embodiment of the present invention.

FIG. 6 is a sectional view of an electric water heater according to a sixth embodiment of the present invention.

FIG. 7 is a sectional view of an electric water heater according to a seventh embodiment of the present invention.

FIG. 8 is a sectional view of an electric water heater according to an eighth embodiment of the present invention.

FIG. 9 is a sectional view of an electric water heater according to a ninth embodiment of the present invention.

FIG. 10 is an overall sectional view of a divided heater showing a tenth embodiment of the present invention.

FIG. 11 is a graph showing a relationship between a valve (a) and a saturation temperature on a heater side of a partition plate in a tenth embodiment of the present invention.

12 (a) is a sectional view of a partition plate showing an eleventh embodiment of the present invention, FIG. 12 (b) is a perspective view of an activated carbon storage case, and FIG. 12 (c) is an activated carbon storage case of another embodiment. It is sectional drawing.

13A is a plan view of a partition plate showing a twelfth embodiment of the present invention, and FIG. 13B is a sectional view of a part of the partition plate.

FIG. 14 is a sectional view of a part of a partition plate according to a thirteenth embodiment of the present invention.

FIG. 15 is a sectional view of a part of a partition plate according to a seventeenth embodiment of the present invention.

FIG. 16 is a sectional view of a part of a partition plate showing an eighteenth embodiment of the present invention.

FIG. 17 is a sectional view of a part of a partition plate according to a nineteenth embodiment of the present invention.

18A is an explanatory view showing a positional relationship between a partition plate and a sensor according to a twentieth embodiment of the present invention, and FIG. 18B is a diagram illustrating a partition plate and a sensor according to the twentieth embodiment of the present invention; It is explanatory drawing which shows another positional relationship of.

FIG. 19 is a graph showing the relationship between the water temperature on the side of the partition plate opposite to the heater and the amount of hot water in the twenty-first embodiment of the present invention.

FIG. 20 is a graph showing the relationship between the water temperature on the side opposite to the heater of the partition plate and the amount of hot water in the twenty-second embodiment of the present invention.

FIG. 21 is a partial sectional view of a partition plate according to a twenty-third embodiment of the present invention.

FIG. 22 is a sectional view of a part of a partition plate showing a twenty-fourth embodiment of the present invention.

FIG. 23 is a sectional view showing a water heater according to a twenty-fifth embodiment of the present invention.

FIG. 24 is an explanatory diagram of the operation of the check valve.

FIG. 25 is a sectional view of a conventional electric water heater.

FIG. 26 is a sectional view of a conventional water heater (electric water heater / heater).

[Explanation of symbols]

Reference Signs List 3 heater (heating means) 9 lid 16 centrifugal pump (water supply device) 31, 61, 81 container 32, 62, 82 water outlet 33, 51, 72, 83 flowing water path 34, 41, 65, 84, 101, 111, 121 , 1
31 Partition plate 37, 42, 66, 71, 87, 132 Bubble discharge hole 38, 63, 89 Opening 39, 64, 90 Water pipe 91 Auxiliary hole (water supply channel) 104 Air layer 114, 124 Hollow layer 133 Sliding valve 211 Container 212 Heater 213 Partition plate 214 Valve 215 Inlet 223 Activated carbon 233 Convex portion 234 Annular rib 236 Magnet 237 Double structure portion 239 Projection 240 Projection 241 Sensor 242 Valve 247 Temperature variable portion 248 Inner heater 249 Outer heater 301 Container 302 Liquid 303 Heating Means 304 Partition plate 305 Check valve 307 Internal temperature detecting means 308 External temperature detecting means

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Takao Kamiwa 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Futa Hiromatsu 1006 Odaka Kadoma Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Kazuichi Okada 1006 Kadoma Kadoma, Osaka Pref.Matsushita Electric Industrial Co., Ltd. (72) Inventor Hideaki Kobayashi 1006 Odaka Kadoma, Kadoma City, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Masahiro Yokono 1006 Kadoma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 4B055 AA34 BA36 CA11 CA13 CB05 CB08 CB09 CB17 CC28 CC44 CC66 GD05

Claims (28)

[Claims] 1. A container for storing a liquid, a heating means for heating the container or the liquid in the container, a lid for covering the upper part of the container, and a bubble discharging hole at the top, which is disposed in the container and With a partition plate to partition on the side with and without the heating means,
An electric water heater provided with a water outlet on the bottom surface of the container covered with the partition plate. 2. A container for accommodating a liquid, a heating means for heating the container or the liquid in the container, a lid for covering the upper part of the container, a water feeder for taking out the liquid in the container, and a container arranged in the container. Provided with a bowl-shaped partition plate, provided with a water discharge hole communicating with the water supply device on the bottom surface of the container covered with the partition plate, forming a flowing water path between the lower end of the partition plate and the bottom surface of the container, A bubble exhaust hole is provided at the top of the partition plate,
An electric water heater provided with a water guide pipe extending upward from the water outlet and opening near the upper end. 3. The electric water heater according to claim 2, wherein the flowing water path is arranged substantially uniformly over the entire circumference of said partition plate. 4. The electric water heater according to claim 2, wherein the water outlet hole of the container is provided near the outer periphery of the bottom surface of the container, and the top of the partition plate is located almost immediately above the upper end of the water pipe. 5. The water outlet according to claim 2, wherein the water outlet of the container is provided near the outer periphery of the bottom surface of the container, the upper end of the water pipe is located just above the partition plate, and the water flow path is provided on the side opposite to the water outlet. Electric water heater. 6. The main waterway, wherein a path between the opening near the upper end of the water pipe and the water outlet of the container is provided, and a second path leading to the water outlet of the vessel is provided near the lower end of the water pipe, thereby forming a water supply path. The described electric kettle. 7. The electric water heater according to claim 2, wherein the partition plate has a double structure in which the inside of the partition plate is an air layer. 8. The electric water heater according to claim 2, wherein the partition plate has a double structure in which the inside of the partition plate is a hollow layer slightly lower than the atmospheric pressure. 9. The electric water heater according to claim 2, wherein the partition plate has a double structure in which the inside of the partition plate is a vacuum hollow layer. 10. The electric water heater according to claim 2, wherein a valve which opens on rising and closes on lowering is provided in a bubble discharging hole of the partition plate, and the valve weighs 2 to 5 grams per square centimeter. 11. The electric water heater according to claim 2, wherein the volume of the bottom surface side of the container covered by the partition plate is about 1000 ml or less. 12. A container having a heater for heating the stored liquid, a partition plate for dividing the stored liquid into a heater side and a non-heater side, a valve attached to the top of the partition plate, and the partition plate. A hot water outlet for taking out the liquid on the heater side is provided in the container. 13. The split heater according to claim 12, wherein activated carbon is provided on the heater side of the partition plate. 14. The divided heater according to claim 12, wherein the partition plate is detachably attached to the container. 15. The split heater according to claim 12, wherein a gap for a flowing water path is provided at the bottom of the partition plate. 16. The split heater according to claim 12, wherein a sensor for detecting the liquid temperature on the side opposite to the heater of the partition plate is provided on the outer surface of the container facing the liquid on the side opposite to the heater of the partition plate. 17. The split heater according to claim 12, further comprising a sensor for detecting a liquid temperature on a side opposite to the heater of the partition plate, so that a liquid on a side opposite to the heater of the partition plate does not reach the boiling point. 18. The divided heater according to claim 17, wherein heating is continued even during the removal of the liquid on the heater side of the partition plate. 19. The divided heater according to claim 12, further comprising a temperature variable section that controls opening and closing of the valve according to the level of the liquid temperature on the heater side of the partition plate. 20. The split heater according to claim 12, further comprising an inner heater for heating the liquid on the heater side of the partition plate and an outer heater for heating the liquid on the side opposite to the heater. 21. A container for holding a liquid, a heating means for heating the liquid, a partition plate covering the bottom of the container and forming a substantially closed space, and a partition plate for removing boiling air bubbles provided on an upper portion of the partition plate. A check valve for discharging to the outside, an internal temperature detecting means for detecting the temperature of the liquid inside the partition plate, and an external temperature detecting means for detecting the temperature outside the partition plate, wherein the temperature detected by the external temperature detecting means is A water heater that controls the heating means. 22. The water heater according to claim 19, wherein the liquid inside the partition plate is discharged by a liquid pump communicating with the internal space of the partition plate. 23. The water heater according to claim 21, wherein the heating means includes a high-power main heater for rapidly heating the liquid in the container and a small-output auxiliary heater for gradually heating the liquid. 24. The water heater according to claim 21, further comprising control means for intermittently operating the heating means when the temperature detected by the external temperature detection means becomes close to the boiling point of the liquid, thereby reducing the amount of heating of the liquid. 25. A control means for switching the heating means from the main heater to the auxiliary heater and energizing when the temperature detected by the external temperature detecting means becomes close to the boiling point of the liquid to reduce the amount of heating of the liquid. Water heater. 26. The water heater according to claim 22, further comprising a control means for stopping the energization of the heating means when the liquid inside the partition plate is near the boiling point and the liquid pump discharges the liquid. 27. The water heater according to claim 21, wherein the upper surface of the water absorption pipe which communicates with the outside of the container and protrudes upward from the bottom of the container is close to the upper surface of the inner space of the partition plate. 28. The water heater according to claim 27, wherein the water-absorbing pipe is covered with a filter around the opening on the container side.