JPH0332363B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a water boiling container, and more specifically, a container using a vacuum double container in which an inner container and an outer container are made of metal such as stainless steel. Regarding.

<Prior Art and Problems to be Solved by the Invention> Conventionally, as a water boiling container, one using a metal vacuum double container has been known. but,
Since the above-mentioned double-walled container forms a vacuum space throughout the outer periphery and the bottom, it is difficult to install a water boiler thermometer for boiling water or controlling heat retention, and it is also difficult to install a water boiler thermometer for boiling water or controlling heat retention. When installing a liquid volume tube, it is necessary to install it across the vacuum space, so it is necessary to weld the liquid volume pipe to both the inner container side and the outer container side with good airtightness, which makes manufacturing difficult. There was a problem of complication.

This invention was made in view of the above-mentioned problems, and provides a water boiling container that takes advantage of the characteristics of a vacuum double container and has functions such as water boiling or heat retention control functions and liquid volume display with a simple configuration. The purpose is to provide.

<Means for Solving the Problems> The water boiling container of the present invention for achieving the above object is a double container in which a vacuum space is formed between a metal outer container and an inner container, and A single layer is formed at the bottom of the double container excluding the space,
A liquid volume pipe and a heater are attached to this single part, and the water boiler thermometer is placed in a position within the liquid volume pipe below the inner container that does not protrude into the interior of the inner container. The feature is that a thermometer is attached to the liquid volume tube. The liquid flow pipe may also serve as a discharge pipe.

<Function> According to the water boiling container described above, while ensuring heat retention due to the vacuum double container, the heater can boil water, the water boiling thermometer can detect that the water has boiled, or heat retention control can be performed. You can
Also, the liquid volume can be directly displayed on the liquid volume tube.

In particular, since the heater and water heater are arranged at the bottom of the double container, these wirings can be gathered at the bottom, making it possible to simplify the wiring structure and facilitate the wiring work. Furthermore, since the water boiling thermometer is attached to the liquid volume pipe, there is no need to separately provide a mounting portion for attaching the water boiling thermometer, and the structure can be simplified. moreover,
Since the detection part of the water boiler thermometer faces inside the liquid flow pipe and directly detects the temperature of the hot water, it is possible to accurately detect when the water has boiled. In addition, since the detection part of the water boiler thermo does not protrude into the interior of the inner container, the detection part of the water boiler does not get in the way when cleaning or cleaning the inside of the inner container. can be done easily.

<Examples> Hereinafter, examples will be described in detail with reference to the accompanying drawings showing examples.

FIG. 1 is a vertical sectional view showing the internal structure of the water boiling container, which constitutes a double container N in which a vacuum space 3 is formed between an outer container 1 made of metal such as stainless steel or iron and an inner container 2. There is. More specifically, by bending the upper part inward, the outer container 1 can
A flange 11 having an L-shaped cross section is formed, and a cylindrical recess 12 is formed in the center of the bottom. By cutting out the top surface of this recess 12, only the inner container 2 can be removed. A single layer A is formed. In addition, the inner container 2 has a flange portion 2 having an L-shaped cross section by bending the upper portion outward.
1 is formed, and a predetermined area at the lower part of the flange 21 is made to protrude from the outer container 1 to form a single part A. Then, by welding or the like, the fitting portion between the outer container 11 and the outer circumference of the inner container 2, and the top surface of the recess 12 of the flange 1 of the outer container 1 and the bottom surface of the inner container 2 are hermetically joined. The space formed by both containers is made into an airtight space, and by increasing the degree of vacuum in this airtight space, a vacuum space 3 is formed and heat retention is improved.

Furthermore, in the single layer portion A at the bottom of the double container N,
A doughnut-shaped kettle heater 4 is attached, and the lower end of the liquid flow pipe 5 is connected to the inside of the inner container 2 with the inner periphery of the kettle heater 4 being inserted therethrough. In addition, the vertical part of the liquid volume tube 5 is
It is formed of a transparent tube such as a glass tube, and its upper end is electrically connected to the single layer A at the top of the water boiling container. The kettle heater 4 is fixed immovably by the pressing force of an elastic member 11 attached to the bottom of the outer container 1.

Reference numeral 6 denotes a boiling sensor as a water boiling thermometer, which is fixed to the single part A above the double container N with a temperature measuring part introduced inside the inner container 2.

With the above configuration, while ensuring heat retention by the double container N, the water heater 4 can boil water, and the boiling sensor 6 can detect that the water has boiled. . In addition, the liquid volume can be directly displayed on the liquid volume pipe 5, and the water heater 4, liquid volume pipe 5, boiling sensor 6
is attached to the single part A other than the vacuum space 3, so
Each installation can be carried out very easily.

Note that the boiling sensor 6 can be configured in various locations other than the above. For example, when configured at the bottom of the double container N, the detection part of the boiling sensor 6 can be installed in the liquid directly below the inner container 2. The boiling sensor 6 may be installed in a state where it is introduced into the volume pipe 5 and does not protrude into the inner container 2 (see FIGS. 2 and 3).
In this case, a heater 4 is installed on the bottom side of the double container N.
and the water boiler thermometer 6 are arranged, so these wirings can be gathered at the bottom of the double container N.
It is possible to simplify the wiring structure and facilitate wiring work. Further, since the boiling sensor 6 is attached to the liquid volume pipe 5, there is no need to separately provide a mounting portion for attaching the boiling sensor 6, and the structure can be simplified. Furthermore, since the detection part of the boiling sensor 6 is introduced into the liquid flow pipe 5 to directly detect the temperature of the hot water, it is possible to accurately detect that the water has boiled. In addition, since the detection part of the boiling sensor 6 does not protrude into the interior of the inner container 2, the detection part of the boiling sensor 6 does not get in the way when cleaning or cleaning the inside of the inner container 2. , cleaning work etc. can be easily performed.

FIG. 4 shows a case where the boiling sensor 6 is configured at the lower part of the outer periphery of the double container N. A predetermined part of the outer container 1 is recessed into the inner container 2 side and brought into close contact with the inner container 2, and this contact portion B The boiling sensor 6 is held by a fixing member 61 attached to the outer container 1 with the tip end surface of the boiling sensor 6 pressed against the outer container 1. As shown in FIG. 5, if the recessed end surface of the inner container 2 is cut out, the boiling sensor 6 can be pressed directly against the outer container 1, and boiling can be detected more quickly. Can be done.

FIG. 6 shows a hot water introduction pipe 7 at the bottom of the inner container 2.
This is a case in which the single part A is formed into an elliptical outline to secure a formation location for the introduction pipe 7. In this case, boiling can be detected by inserting and fixing the boiling sensor 6 into the introduction pipe 7. In the above embodiment, by forming the introduction pipes 7 at a plurality of locations in the single layer A, the heat retention TRS 6a, the temperature fuse 6b, etc. can be easily configured (see FIG. 7).

FIG. 8 is a longitudinal cross-sectional view showing still another embodiment, in which the boiling sensor 6 is attached in a single part A at the bottom of the inner container 2 in a state in which it is pressed directly against the inner container 2. In this embodiment, as shown in FIG. 9, the single portion A is formed into a daruma-shaped outline to secure mounting portions for the kettle heater 4 and the boiling sensor 6, respectively.

In addition, in any of the above embodiments, the liquid volume tube 5
This can be implemented by forming it at a predetermined portion on the outer circumferential side of the water heater 4 (see FIG. 10). In addition, when forming the boiling sensor 6 at the bottom and lower part of the outer periphery of the double container N, as shown in FIG. It is possible to adopt a structure in which the flange 21 of the inner container 2 is fitted to the flange 21 of the inner container 11. In particular, in this case, as shown in FIG. By attaching it to the synthetic resin cylindrical body 8 interposed between it and the open end of the exterior body 9, the attachment can be further facilitated.

Furthermore, by connecting the upper end of the liquid volume pipe 5 to the pouring port of the water boiling container, the liquid volume pipe 5 can be
It can also be used as a hot water discharge pipe.

In addition, various design changes can be made to the double container N without departing from the gist of the invention, such as by using a water heater to control the heat retention.

<Effects of the Invention> As described above, in the water boiling container of the present invention, the water boiling heater, water boiling thermostat, and liquid flow pipe are attached to a location other than the vacuum space of the vacuum double container, such as the single part, so that they It can be easily installed and the structure can be simplified. In particular, since the heater and water heater are arranged on the bottom side of the double container, these wirings can be gathered at the bottom, making it possible to simplify the wiring structure and facilitate the wiring work. Furthermore, since the water boiling thermometer is attached to the liquid volume pipe, there is no need to separately provide a mounting section for attaching the water boiling thermometer, and the structure can be simplified. Furthermore, since the detection part of the water boiler thermometer faces inside the liquid volume pipe and directly detects the temperature of the hot water, it is possible to accurately detect that the water has boiled. In addition, since the detection part of the water boiler thermo does not protrude into the interior of the inner container, the detection part of the water boiler does not get in the way when cleaning or cleaning the inside of the inner container. It has various unique effects such as being able to easily perform the following.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the internal structure of a water boiling container, FIGS. 2 to 6 are sectional views of main parts showing other embodiments, and FIG. 7 is a bottom view of the embodiment shown in FIG. 6. ,
FIG. 8 is a sectional view of a main part showing another embodiment, FIG. 9 is a bottom view of the previous figure, and FIGS. 10 to 12 are sectional views of a main part showing still another embodiment. 1...Outer container, 2...Inner container, 4...Kettle heater, 5...Liquid volume pipe, 6...Boiling sensor as water boiler thermometer, 7...Hot water introduction pipe, N...Double container, A...Single part, B...Tight part of the inner and outer containers.

Claims (1)

[Scope of Claims] 1. A double container in which a vacuum space is formed between a metal outer container and an inner container, and a single part is formed at the bottom of the double container excluding the vacuum space. The liquid volume pipe and the heater are attached to this single part, and the detection part of the water boiling thermometer is placed in the liquid volume pipe below the inner container at a position that does not protrude into the inner container. A water boiling container characterized in that a water boiling thermo is attached to a liquid volume pipe. 2. The water boiling container according to claim 1, wherein the liquid volume pipe also serves as a discharge pipe.