JPS623055Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water heater that has both the functions of a thermos flask and an electric warmer.

Conventionally, the above-mentioned thermos bottles have a double-walled container made of glass or metal, but they do not have a heating mechanism and must be heated with a heater.On the other hand, heating-type electric warmers have a single-walled container made of metal. It's getting old,
The heating part and container were only insulated by covering them with a heat insulating material such as glass wool, which had the disadvantage of poor heating and heat retention efficiency.

The present invention was made to eliminate the above-mentioned drawbacks, and consists of an inner vacuum container and a vacuum triple metal container covering the inner vacuum container, a heating medium sealed in the inner vacuum container, and a vacuum triple metal container covering the inner vacuum container. By providing a heating element at the bottom of the container that does not cover the outer vacuum container, the heat generated by the heating element is transmitted to the inner vacuum container, which is covered with an insulated outer vacuum container. , the heat is transferred to the heat medium inside the inner vacuum container without being dissipated to the outside. In addition, as mentioned above, the heat medium such as liquid is covered by the outer vacuum container via the inner vacuum container, which takes advantage of the vacuum insulation structure and can be heated, which improves usability with good heat retention efficiency. The goal is to provide the following.

An embodiment of the present invention will be described below with reference to the drawings.

The structure of the embodiment is as shown in the figure, and 1 is a vacuum triple metal container, which has a triple wall structure with two sealed cavities. 3 is an outer vacuum container, which refers to the outer part of the vacuum triple heavy metal container 1, and this sealed cavity is to be evacuated. Reference numeral 2 denotes an inner vacuum container, which refers to the inner part of the vacuum triple metal container 1, and a heat medium 12 is sealed and held in this sealed cavity. Reference numeral 8 denotes a heating element, which is fixedly provided at a portion 13 at the bottom of the inner vacuum container that does not cover the outer vacuum container. Reference numeral 6 denotes a lid, which is equipped with a pump 5 that communicates with the inside of the vacuum triple heavy metal container 1 to supply air;
It is placed in the upper opening of the heavy metal container 1 so as to be openable and closable. Reference numeral 4 denotes a water conduit pipe, which leads the liquid 7 contained in the vacuum triple heavy metal container 1 to the outside of the container. Reference numeral 11 denotes an outer frame of the main body, which houses the vacuum triple heavy metal container 1, the heating element 8, and the like.
A suitable number of legs 9 are attached to the bottom of the outer frame 11 of the main body. Reference numeral 10 denotes a power cord, which is electrically connected to a heating element 8 attached to the bottom of the inner vacuum container 2. 12 is a heat medium housed in the inner vacuum container 2 of the vacuum triple heavy metal container 1.

The operation of this embodiment will be explained below. heating element 8
When energized, the inner vacuum container 2 is warmed, and the evaporative heat medium 12 stored in the container becomes vapor and moves into the closed cavity of the inner vacuum container 2. This closed cavity is immediately heated and heats the liquid 7 through the inner walls of the inner vacuum vessel 2. The heat transfer medium 12 emits heat, condenses and collects at the bottom of the inner vacuum vessel 2, where it is heated again and repeats the thermal cycle as described above. Note that the heated sealed cavity of the inner vacuum container 2 is prevented from radiating heat to the outside by the vacuum sealed cavity of the outer vacuum container 3.

According to the present invention, a heating element is provided in a portion of the outer vacuum container and the bottom of the inner vacuum container that does not cover the outer vacuum container of a triple wall vacuum triple metal container having two sealed cavities in the outer frame, and By enclosing a heat medium in the inner vacuum container, the heat generated by the heating element is transferred to the sealed cavity of the inner vacuum container, and the inner vacuum container is covered with the outer vacuum container so that the heat does not dissipate to the outside. transmitted to the liquid in the container. Further, as described above, the liquid is covered by the vacuum outer container via the inner vacuum container, making use of the characteristics of the vacuum insulation structure, and can be heated, which has the effect of improving usability with good heat retention efficiency.

[Brief explanation of the drawing]

The figure is a sectional view of a water heater showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Vacuum triple heavy metal container, 2...Inner vacuum container, 3...Outer vacuum container, 8...Heating element, 12...
...Heating medium, 13... Part not covered.

Claims (1)

[Scope of utility model registration request] An inner vacuum container 2 and an outer vacuum container 3 covering the inner vacuum container 2 constitute a vacuum triple heavy metal container 1, and a heat medium 12 is sealed in the inner vacuum container 2,
and the outer vacuum container 3 at the bottom of the inner vacuum container 2
A water heater characterized in that a heating element 8 is provided in a portion 13 that is not covered.