JPS581925B2 - electric heating pot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric heating pot that heats water with a heating element, and an object of the invention is to make it possible to quickly obtain high-temperature water and also to perform humidification.

Generally known electric heating pots are equipped with a heating element such as a sheathed heater at the bottom of a water container, and are heated by the heating element to naturally circulate the water in the water container and make it a high-temperature water.

Therefore, since the water spreads upward and downward within the water container and mixes the high-temperature water with water, there is a drawback that it takes a long time to obtain a predetermined high-temperature water.

The present invention solves these drawbacks and provides an electric heating pot that generates steam and has a humidifying function.

The present invention will be described below with reference to an illustrated embodiment. In FIG. 1, 1 is an outer case, 2 is a water container with an open top and housed in this outer case, and 3 is this water container and the outer case 1.
The insulation space formed between the two is filled with insulation material or kept in a vacuum state.

Reference numeral 4 denotes an upper case detachably connected to the upper part of the water container 2 and the outer case 1, and a partition plate 5 is provided on the lower surface of the upper case, which covers the upper opening of the water container and has an air injection hole 6 in the center. It is formed in one piece.

A recess 7 is recessed from the upper surface side of the center of the upper case 4 to open the lower part, and a recess 8 is provided in the inner space of the upper case 4, and the lower surface is partitioned outside the air injection hole 6 so as to surround it. A bellows-shaped telescopic tube tightly fixed on the plate 5.
The upper surface is covered with a closing plate 9 having a valve hole 10 formed in its center.

Reference numeral 11 denotes a compression spring whose lower end is in elastic contact with the upper surface of the partition plate 5 around the air injection hole 6 and whose upper end is in elastic contact with the lower surface of the closing plate 9 around the valve hole 10. In short, the upper surface of the closing plate 9 is biased so as to be elastically blocked.

Reference numeral 12 denotes a valve body made of rubber or the like which is fixed in a cantilevered manner near the valve hole 10 on the lower surface of the closing plate 9, and is normally biased to seal the valve hole 10. The valve body 12 has the valve hole 10 in its center. A protrusion 13 extending upward by a predetermined height from the base is integrally formed.

14 projects horizontally from the recess 7 of the upper case, and normally its free end abuts against the protrusion 13 of the valve body 12.
A regulator 15 is housed in the recess 7 of the upper case, and its lower surface is placed on the upper surface of the closing plate 9 of the telescopic cylinder 8. When the regulator 15 is pressed down, the regulator 15 is housed in the recess 7 of the upper case. A cutout portion 16 is formed for removing the material.

17 is a straight tube-shaped heating container installed vertically between the water container 2 and the outer case 1 to approximately the same height as the water container, and has a communication hole 18 that penetrates the upper case 4 and opens its upper surface to the outside. It is set up.

Reference numeral 19 denotes a long straight tube-shaped heating element such as a sheathed heater inserted vertically from the bottom of the heating container 17 upward; 20 has one end connected in communication with the upper part of the heating container 17; the other end is an open opening 21; 20A is an upper circulation pipe that is open near the inner bottom of the water container 2, and 20A is a lower circulation pipe that communicates and connects the inner bottom of the water container 2 and the inner bottom of the heating container 17, and can be operated from outside the outer case 1 in the middle. An on-off valve V is provided.

22 has one end connected to the lower part of the heating container 17,
A hot water supply pipe whose other end opening 23 is above the upper part of the circulation pipe 20 and led out to the side outside the outer case 1; 24 is a valve body that opens and closes the communication hole 18 of the heating container 17; , an extendable cylinder rod 26 whose lower end is fixed to the valve stem and whose upper end is fixed to a plate 15A extending horizontally from the pressing body 15, and is normally set in a position where the communicating hole 18 is opened. .

In the above configuration, after removing the upper case 4 and opening the valve V, water is poured into the water container 2, and water flows through the open port 21 to fill the upper circulation pipe 20, the heating container 17, and the hot water supply pipe 22, and fills the open port with water. Stop the water injection when it flows out from 23.

Next, when power is started to be applied to the heating element 19, a small amount of water in the heating container 17, which has a considerably smaller capacity than the water container 2, quickly becomes high temperature water, rises, and is sent to the upper circulation pipe 20, where it rises. The opening port 21 also flows downward into the water container 2, and the same amount of water in the water container 2 is sent downward into the heating container 17 through the lower circulation pipe 20A. The high-temperature water in the heating container 17 is circulated, the high-temperature water in the water container 2 increases, and all of it is transferred to, for example, a hot water temperature regulator (not shown) near the lower circulation pipe 20A.

) to reach a predetermined final water temperature and maintain that temperature.

Next, when high-temperature water is required, when the suppressor 15 is pressed downward, the lower surface of the presser presses the closing plate 9 at the same time, and the telescoping tube 8 contracts against the compression spring 11, thereby causing the valve body At the same time as the 12 protrusions 13 separate from the regulator 14, the valve hole 10 is sealed, and the air in the telescopic tube 8 is compressed and acts on the water surface in the water container 2.

Therefore, due to this working pressure, the high-temperature water in the water container 2 flows through the open port 21 - upper circulation pipe 20 - heating container 17 - hot water supply pipe 22
The water flows and high temperature water is obtained from the open port 23.

At this time, since the plate 15A is lowered by lowering the suppressor 15, the communication hole 18 of the heating container 17 is sealed by the valve element 24, and the downward pressing force of the valve stem 25 due to the lowering of the plate 15A after this sealing is It is absorbed by the contraction of the cylinder rod 26.

Then, when the pressing force of the pressing body 15 is released, the telescoping tube 8 returns to its old state due to the restoring force of the compression spring 11.
As a result, the closing plate 9 and the pressing body also rise and return to their old state, and in this return process, the valve body 12
When it comes into contact with the regulator 14, the valve hole 10 is opened and the inside of the telescoping cylinder is communicated with the atmosphere, so that the telescoping cylinder 8 is easily returned to its old state.

Furthermore, as the suppressing body 15 rises as the telescopic cylinder 8 returns, the cylinder body 26 directly connected to the plate 15A and the valve shaft 25 rise, so the valve body 24 also opens the communication hole 18 of the heating container 17 and heats The container is communicated with the atmosphere.

Here, by setting the opening timing of the communication hole 18 by the valve body 24 to the initial stage of the return operation of the telescoping cylinder 8, the heating container 17 that is about to be drawn into the water container 2 as the telescoping cylinder 8 returns. The high temperature water inside remains in this container, and this phenomenon is maintained even if the water level in the water container 2 falls.

That is, as a result, when pressing the pressing body 15 to obtain high-temperature water, the high-temperature water accumulated in the heating container 17 will necessarily flow out first. The high-temperature water in the heated portion can be effectively used, and even immediately after filling the water container 2, a small amount of water in the heating container 17 can be rapidly heated to high-temperature water. For example, it can be used quickly for serving tea.

On the other hand, when the on-off valve V is operated in the closing direction to reduce the flow rate during the heating circulation, the water in the heating container 17 is rapidly heated by the heating element 19 and tries to rise, but the lower circulation pipe Since only a small amount of water is supplied from 20A which cannot follow this rapid rise, the heating capacity increases and the water in the heating container 17 is finally boiled and vaporized, and exits from the communication hole 18.

Therefore, during dry times such as winter, the room can be humidified as needed, and hot water supply and humidification can also be used together.

When the heating element is energized, the high-temperature water in the water container 2 can be further heated when passing through the heating container 17.

As described above, in this invention, a water container and a heating container having a smaller internal capacity than the water container are communicated with each other, so that high-temperature water can be rapidly obtained, and this high-temperature water can be quickly delivered to a table by a water supply means. In addition, the high-temperature water in the heating container is drained with priority, so high-temperature water with less temperature drop can be obtained, additional heating can be performed, and the amount of circulating water to the heating container can be reduced. Since steam can be easily generated by operating the controlling means, it is possible to provide a multifunctional electric heating pot that can also perform humidification.

[Brief explanation of drawings]

The figure is a longitudinal sectional view showing an embodiment of the present invention. 1 is an outer case, 2 is a water container, 6 is an air injection hole, 8 is a telescopic cylinder, 10 is a valve hole, 12 is a valve body, 15 is a pressing body, 17 is a heating container, 18 is a communication hole, and 19 is a heating element , 20 and 20A are circulation pipes, 22 is a hot water supply pipe, 24 is a valve body, and ■ is a valve.

Claims (1)

[Claims] 1. A water container housed in a case, a heating container having a smaller internal capacity than the water container, means for communicating the inside of the heating container with a circulation path above and below the water container, and a means for connecting the inside of the heating container to the outside of the case. means for communicating and opening, means acting on the inside of the container to send the heated water in the heating container to the communication opening means to the outside of the case with priority over that in the water container, and an intermediate means for communicating with the circulation path. and a means for controlling the amount of circulating water to the heating container.