JP2864807B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device such as an electric pot used in ordinary households.

[0002]

2. Description of the Related Art There is no conventional electric pan or the like in which a bimetal type thermostat is attached to a hot plate heater in which two sheathed heaters are embedded, and the heat generated by each sheathed heater is adjusted.

[0003] In a conventional electric pan, a bimetal type thermostat is attached to a hot plate heater in which one sheathed heater is embedded, and the temperature is adjusted. The configuration of the conventional electric pan will be described.

FIG. 4 shows a conventional temperature sensing configuration of an electric pan. In FIG. 4, reference numeral 1 denotes a hot plate heater in which a sheathed heater 2 is embedded, and a thermostat mounting base 3 protruding in a cylindrical shape is provided on the back surface of the hot plate heater. Reference numeral 4 denotes a heat shield plate that covers the bottom and side surfaces of the hot plate heater 1. The thermostat mounting base 3 penetrates the heat shield plate 4 and has a thermostat 5 attached to the tip.

The operation of the above-described temperature sensing configuration will be described. First, when the sheathed heater 2 generates heat, the heated plate heater 1
Is heated, and accordingly, the thermostat mounting base 3 is also heated. The thermostat 5 is mounted on the thermostat mounting base 3 and receives the heat conducted from the thermostat mounting base 3. The thermostat 5 also receives radiant heat from the hot plate heater 1. Therefore, conduction heat and radiant heat are transmitted to the thermostat 5, and the contact portion 8 is pressed by the thermal deformation of the bimetal 7 to turn on and off the current.

[0006]

In a configuration in which two sheathed heaters are embedded in the above-described conventional hot plate heater, two
When the pot temperature when each of the sheathed heaters is energized is adjusted by a thermostat, the position of the thermostat mounting pedestal is determined in order to reach the set temperature of the pot in each case. However, when the position of the thermostat mounting base is determined to be a position close to the sheathed heater, the thermostat mounting base is more likely to receive heat from the hot plate heater, and the temperature of the pan is lowered. Therefore, the set temperature of the thermostat must be increased. However, considering the life due to the heat endurance of the thermostat, there is a problem that the set temperature cannot be increased and the set temperature of the pan cannot be increased.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a cooker capable of increasing a set temperature of a pot when each of two sheathed heaters is energized.

[0008]

To achieve this object, the present invention provides an outer sheathed heater, a hot plate heater in which two inner sheathed heaters inscribed in the outer sheathed heater are embedded, A tubular thermostat mounting base provided inside the inner sheath heater, a heat shield plate covering the bottom and side surfaces of the hot plate heater, a main body covering the heat shield plate, and a pot placed on the hot plate heater The heat shield plate is provided with a thermostat cover that protrudes upward along the inside of the sheath heater of the hot plate heater, and the cylindrical thermostat mounting base protrudes downward through the thermostat cover of the heat shield plate. The thermostat is mounted on the thermostat mounting base and has a configuration in which the thermostat is inserted into the thermostat cover of the heat shield plate.

[0009]

According to the structure of the present invention, when one of the sheathed heaters is energized, the heat of the heated sheathed heater is transmitted to the thermostat mounting base through the hot plate heater, and the conduction heat is transmitted to the thermostat mounted on the thermostat mounting base. In addition, the radiant heat of the hot plate heater is blocked by the thermostat cover provided on the heat shield plate.Only the conductive heat from the thermostat mounting base is transmitted to the thermostat, and the temperature of the hot plate heater is adjusted by this conductive heat. Since the temperature of the pan is adjusted, the temperature of the pan increases.

[0010] Further, by determining the position of the thermostat mounting base based on the correlation between the thermal power and the shape of each sheathed heater, the temperature of the thermostat mounting base when the respective sheathed heaters are energized is determined. The temperature of the heater can be adjusted and the temperature of the pot can be set.

[0011]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1 to FIG. 3, reference numeral 11 denotes a hot plate heater in which an outer sheath heater 12 and an inner sheath heater 13 inscribed in the outer sheath heater 12 are embedded. Is provided with a cylindrical thermostat mounting base 14. Further, the bottom and side surfaces of the hot plate heater 11 are covered with a heat shield plate 15, and the heat shield plate 15 is provided with a thermostat cover 16 projecting upward along the inside of the sheath heater 13 of the hot plate heater 11. The thermostat mounting base 14 projects downward through the thermostat cover 16 of the heat shield plate 15, and a thermostat 17 is mounted on the thermostat mounting base 14. The thermostat 17 has a bimetal 18 and the bimetal 18.
There is a contact portion 19 that turns on and off the current by thermal deformation. The pan 20 can be placed on the hot plate heater 11.

The operation of this arrangement will be described. First, when the outer sheath heater 12 is energized, the generated heat of the sheath heater 12 heats the hot plate heater 11 and is transmitted to the thermostat mounting base 14 accordingly. As the temperature of the thermostat mounting base 14 rises, the thermostat 17
However, the radiant heat of the hot plate heater 11 is blocked by the thermostat cover 16 and the thermostat 1
7 is not transmitted. When the bimetal 18 of the thermostat 17 is thermally deformed and the contact 19 is pressed, the power is turned on and off, and the temperature is adjusted.
The same applies when the inner sheath heater 13 is energized.

Here, when the pot temperature when the outer sheath heater 12 is energized is the same as the pot temperature when the inner sheath heater 13 is energized, first, the outer sheath heater 12
The position of the thermostat mounting pedestal 14 is determined so that the temperature of the thermostat mounting pedestal 14 when the heat is generated by the inner sheath heater 13 and the temperature of the thermostat mounting pedestal 14 when the inner sheath heater 13 generates heat are the same. The thermostat 17 has the thermostat cover 16 and the hot plate heater 1.
Since only the radiant heat of 1 is blocked, only the heat of conduction is received, the perception deteriorates, and the temperature of the pot increases. Therefore, the pot temperature when each of the two sheathed heaters is energized by one thermostat can be set, and the temperature of the pot can be increased.

[0015]

As is apparent from the above invention, according to the present invention, it is possible to set the pot temperature when each of the two sheathed heaters is energized with one thermostat, and to increase the pot temperature.

Further, since the radiant heat of the hot plate heater is blocked by the thermostat cover, the thermostat controls the temperature only by the conduction heat. Therefore, the thermostat can sensitively detect the temperature change of the hot plate heater and responds sensitively to the temperature change of the pot in practical cooking, so that an electric pot with good cooking performance can be provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hot plate heater equipped with a thermostat of an electric pan according to the present invention.

FIG. 2 is an exploded perspective view of the electric pan of the present invention.

FIG. 3 is a bottom view of a hot plate heater to which the thermostat of the electric pan of the present invention is attached.

FIG. 4 is a cross-sectional view of a hot plate heater equipped with a conventional electric pan thermostat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Hot plate heater 12 Outer sheath heater 13 Inner sheath heater 14 Thermostat mounting base 15 Heat shield plate 16 Thermostat cover 17 Thermostat 18 Bimetal 19 Contact part 20 Pot

Claims (1)

(57) [Claims] An outer sheathed heater, a hot plate heater in which two inner sheathed heaters inscribed in the outer sheathed heater are embedded, and a tubular thermostat mounting base provided inside the inner sheathed heater on the back surface of the hot plate heater. And a heat shield plate that covers the bottom and side surfaces of the hot plate heater, a main body that covers the heat shield plate, and a pot placed on the hot plate heater, wherein the heat shield plate is inside the sheath heater of the hot plate heater. A thermostat cover is provided that protrudes upward along the line.The tubular thermostat mounting pedestal penetrates downward through the thermostat cover of the heat shield plate, and the thermostat is mounted on the thermostat mounting pedestal. A cooker with a thermostat cover inside.