JPH0833565A - Electric liquid heater - Google Patents

Abstract

PURPOSE:To enhance heat insulation property and a merchandising value when a porcelain container is placed on a table or the like being separated from a heater by a method wherein the porcelain container is made up of the body of a container having a bottom surface opening being shielded through a sealing member with a flat circular bottom plate made of metal and is provided with an electrically heating part. CONSTITUTION:When implemented for a sake heater having sake as object to be heated, this electric liquid heater is made up of a porcelain container 1 and a heater 2. The porcelain container 1 is made up of the body 11 of the container having a bottom opening and a flat circular bottom plate 12 made of metal such as aluminum for shielding the opening and the components are bonded integral with a sealing member 13 such as silicon. On the other hand, the heater 2 has a heating part 2A and a control part 2B mounted inside a case 20 and the heating part 2A made up of the heating plate 21 contacting the bottom plate 12 and a sheathed heater 22 mounted on the rear of the heating plate 21 is controlled with a control section 2B according to outputs of a bimetal 25 with the tip thereof contacting a heat sensitive plate 24 and a setting switch 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heater for heating a liquid such as an electric sake canister, an electric water heater, an electric Chinese medicine decoction device and the like. More specifically, a ceramic container 1 containing a liquid to be heated such as sake, milk, hot water for heating.
And a heater 2 having an electric heating section 2A and a control section 2B.

[0002]

2. Description of the Related Art As a liquid electric heater composed of a container for containing a liquid to be heated and a heater having an electric heating section and a control section, as a liquid electric heater, Japanese Utility Model Publication No. 62-44474 for electric heating equipment. A "heating element" is known. In the known technique, a glass container for containing a liquid to be heated has a bottom surface of the glass container abutting a heating plate exposed on an upper surface of an electric heater.

[0003]

In the above-mentioned known technique, the container for containing the liquid to be heated is a thin glass container. However, in the present invention, the container for containing the liquid is a ceramic product. Therefore, it is an object to increase the heat retention property when the device is separated from the heater and placed on a table or the like. Further, in the known technique, the bottom surface of the glass container is brought into contact with the heating plate on the upper surface of the electric heater. If the container that holds the liquid is a ceramic product, it has low thermal conductivity and is thick, so if the bottom surface of the ceramic container is in contact with the heating plate on the top of the electric heater, the thermal conductivity between the two will be poor and the temperature difference will be small. As a result, the controller of the heater cannot accurately detect the temperature of the liquid in the ceramic container. Especially, in the sake canister, it is necessary to finely control the temperature of the liquor in the container to suit the taste of each person and the heating of the container to correspond to the amount of liquor in the container. It is important to accurately detect the temperature of the liquid inside. Therefore, an object of the present invention is to make a container for containing a liquid a ceramic product and to accurately detect the temperature of the liquid in the ceramic container.

[0004]

[Means for Solving the Problems] The first invention of the present application is
A liquid electric heater configured by separating a ceramic container 1 containing a liquid to be heated and a heater 2 having an electric heating unit 2A and a control unit 2B. The ceramic container 1 has a bottom opening 10. A main body 11 and a metallic flat circular bottom plate 12 that shields the bottom opening 10 of the container main body 11,
The seal member 13 is used for adhesion and integration.

The second invention of the present application is the same as the first invention of the present application.
The heater 2 constitutes a heating unit 2A with a sheathed heater 22 provided on the back surface of the heating plate 21, and the central portion thereof is the heating plate 2
1. A heat sensitive plate 24 having a space formed between it and the central portion of 1.
The control unit 2B is configured by the bimetal 25 that contacts the heat-sensitive plate 24 and the setting switch, and an empty space is formed between the heating plate 21 of the heating unit 2A and the heat-sensitive plate 24 of the control unit 2B.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to FIGS. 1 and 2. The liquid electric heater of the embodiment is an embodiment as a sake canister that uses the liquid that is the object to be heated as sake. A ceramic container 1 for containing liquid sake, which is an object to be heated, and a heater 2 having an electric heating unit 2A and a control unit 2B are separately configured.

The ceramic container 1 includes a container body 11 of a molded article such as ceramics (porcelain, porcelain) having a bottom opening 10, and a metal (aluminum, etc.) for shielding the bottom opening 10 of the container body 11.
A circular flat bottom plate 12 made of stainless steel or copper) is bonded and integrated with a seal member (silicon) 13. Reference numeral 14 is a liquor charging port, and 15 is a spout. The heater 2 is the heating unit 2
A, a control unit 2B, and a case 20 are internally configured, and the heating unit 2A includes a metallic heating plate 21 that contacts the bottom plate 12 of the ceramic container 1, and a sheath heater 22 provided on the back surface of the heating plate 21. The heating unit 2A is constituted by. Sheath heater 22
Is attached in close contact with the peripheral portion of the heating plate 21 in a loop shape, and an upright portion 21B is formed at the peripheral portion of the heating plate 21 so that the vertical difference between the flange portion 21C for mounting the peripheral portion and the heating portion 21A. L exists.

The control section 2B fixes a heat sensitive plate 24 made of a metal plate (aluminum, iron, copper, etc.) to a supporting section 20A formed inside the upper part of the case 20 with screws, and a bimetal 25 is attached to the center of the heat sensitive plate 24. The setting switch 26 is provided at the lower part of the side surface of the case 20 by contacting the tip, and the bimetal 25 is moved by moving the lever 27 integrated with the knob of the setting switch 26.
The contact position of the can be freely changed, and the heating temperature of the liquid in the ceramic container can be arbitrarily set so as to correspond to the temperature of the liquor that suits each person's taste and the amount of liquor in the container. The contact of the bimetal 25 is inserted between the sheath heater 22 and a power cord (not shown), and the energization of the sheath heater 22 is controlled by opening and closing the contact of the bimetal 25. When fixing the heat-sensitive plate 24 to the support portion 20A of the case, by interposing the collar portion 21C of the heating plate 21, the peripheral portion of the heat-sensitive plate 24 is brought into close contact with the collar portion 21C of the heating plate 21 to conduct heat and heat. Board 2
The inner chamber H is present between the central part of 1 and the central part of the heat sensitive plate 24. An annular downward concave portion 28 is provided around the bottom surface of the container body 11.
Further, an annular ridge portion 29 is formed on the peripheral portion of the upper surface of the case 20, and the annular downward concave portion 28 and the annular ridge portion 29 are loosely engaged with each other to prevent the ceramic container 1 from moving laterally.

In using the sake canister of the present invention,
After putting a desired amount of sake into the ceramic container 1, the ceramic container 1 is placed on the heater 2. The heating plate 2 of the heater 2 in the mounted state
The bottom plate 12 of the ceramic container 1 is brought into close contact with 1 and the seed heater 22 is energized to heat the sake in the ceramic container 1 through the heating plate 21 and the bottom plate 12. At this time, the heat-sensitive plate 24 of the control unit 2B of the heater 2 has the central portion of the heat-sensitive plate 24.
It is heated from the center of 1 through the inner chamber H, and is directly heated by the collar portion 21C of the heating plate 21 in the peripheral portion. And
Heat is conducted to the bimetal 25 at the center of the heat sensitive plate 24. Therefore, the bimetal 25 causes a time difference with the heating timing of the heating plate 21 by the sheath heater 22, and the temperature rises close to the temperature rise of the sake in the ceramic container 1. It should be noted that the object of the present invention can be achieved by using a thick glass container such as a heat-resistant glass container for a microwave oven in place of the pottery and the porcelain as the container body of the ceramic container. Also,
After heating to a predetermined temperature, it is possible to move only the ceramic container 1 and place it on the table in the vicinity of each individual of the table, but in this case, the table and the bottom plate 12 are provided on the bottom surface of the ceramic container 1. Since a space is formed between them, there is no direct heat conduction and good heat retention. By making the container body of the ceramic container 1 a ceramic, the present invention can economically produce a small amount of a product with individuality. Therefore, as a product with a unique appearance design, it can be used as a fixture for a hotel or the like, a gift item, or a souvenir. The product value can be increased.

[0010]

INDUSTRIAL APPLICABILITY The present invention provides a liquid electric heater constituted by separating a container for containing a liquid to be heated such as liquor, milk and hot water for heating and an electric heating type heater. By making the container containing the liquid a product such as ceramics, it enhances the heat retention when it is placed on a table or the like separated from the heater, and when placed on the table as compared to known metal products. It has no discomfort with other tableware, and has the effect of particularly increasing the commercial value as a sake canister for a table. further,
The container that holds the liquid is made into a product such as ceramics to enhance heat retention, but since the bottom of the ceramic container is a metal bottom plate, it is possible to enhance the thermal conductivity with the heating plate on the upper surface of the heater,
The heating efficiency can be increased and the heating time can be shortened, and the temperature difference between the heating plate on the upper surface of the heater and the liquid (liquor, etc.) in the ceramic container can be reduced to accurately detect the temperature of the liquid in the ceramic container and obtain the desired value. It can be controlled accurately by the heating temperature. . In the second invention of the present application, in the heater, the peripheral edge of the heat sensitive plate and the peripheral edge of the heating plate directly conduct heat, but since the central part of the thermal sensitive plate forms a space between the central part of the heating plate, The temperature of the heat sensitive plate is maintained lower than the temperature of the heating plate heated by the sheathed heater for heating, the heat sensitive plate shows a temperature close to the temperature of the liquid in the ceramic container, and the temperature at the time of heating the liquid in the ceramic container. The control can be performed more accurately.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a drinking canister showing an embodiment of a liquid electric heater according to the present invention.

FIG. 2 is a transverse sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceramic container 2 Heater 2A Electric heating part 2B Control part 10 Bottom opening 11 Container body 12 Bottom plate 13 Seal member (silicon) 20 Case 21 Heating plate 22 Sheath heater 24 Heat sensitive plate 25 Bimetal

Claims (2)

[Claims] 1. A ceramic container 1 for containing a liquid to be heated.
And a heater 2 having an electric heating section 2A and a control section 2B. The ceramic electric container 1 has a container body 11 having a bottom opening 10.
And a metallic bottom plate 12 having a circular flat plate shape that shields the bottom opening 10 of the container body 11 are bonded and integrated by a seal member 13 to form a liquid electric heater. 2. A ceramic container 1 for containing a liquid to be heated.
And a heater 2 having an electric heating section 2A and a control section 2B. The ceramic electric container 1 has a container body 11 having a bottom opening 10.
And a metal-made circular flat bottom plate 12 that shields the bottom opening 10 of the container body 11 are bonded and integrated with a seal member 13, and the heater 2 contacts the bottom plate 12 of the ceramic container 1. The metallic heating plate 21 and the sheathed heater 22 provided on the back surface of the heating plate 21 constitute the heating unit 2A. The peripheral edge of the heating plate 21 and the peripheral edge thereof are in close contact with each other, and the central portion thereof is the center of the heating plate 21. A heat sensitive plate 24 in which a space is formed between the heat sensitive plate 24 and the bimetal 25, which is in contact with the heat sensitive plate 24;
A liquid electric heater characterized in that a control section 2B is constituted by a setting switch, and an empty chamber is formed between the heating plate 21 of the heating section and the heat sensitive plate 24 of the control section.