JP2939835B2 - Cooker - 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 for controlling a heater based on the temperature of a container, and more particularly to an arrangement of temperature detecting means for detecting the temperature of the container.

[0002]

2. Description of the Related Art A heating cooker for automatically cooking an object to be heated by a heater is conventionally known. For example, a sensor for detecting water vapor, gas, and the like of the object to be heated generated by heating of the heater is provided, and when the value detected by the sensor reaches a predetermined value, the remaining heating time from that point is determined, Some heaters continuously heat the heater until the time elapses. The internal temperature is detected via a temperature sensor.

[0003]

However, in the above-mentioned conventional heating cooker, since each sensor is provided in the heating chamber so as to be exposed, the influence of the heat of the heater causes
In some cases, the function of the sensor is reduced due to the adhesion of residue or grease on the object to be heated, causing malfunction. The present invention has been made to solve such a problem.
It is an object of the present invention to provide a heating cooker that prevents overheating and half-burn of an object to be heated due to a malfunction of a sensor.

[0004]

According to the present invention, there is provided a heating cooker comprising: a container for storing an object to be heated; a heating chamber provided with a heater above the heating chamber; and a bottom portion of the heating chamber. A concave portion formed in a central portion and forming a void closed with the container when the container is installed, and a temperature detecting means provided in the concave portion and detecting a temperature of the container. is there.

[0005]

According to the present invention, when the container is installed in the heating chamber, the temperature detecting means is placed in a closed space formed by the recess at the bottom center portion of the heating chamber and the container. Therefore, the temperature of the container can be accurately detected without being affected by the heat of the heater and the convection air in the heating chamber.

[0006]

FIG. 1 is a front view showing the structure of a cooking device according to an embodiment of the present invention, and FIG. 2 is a side view of the cooking device.
In the drawing, reference numeral 1 denotes a heating chamber provided with a door 7 in the front, 2 denotes a heater provided above the heating chamber 1, and 3 denotes, for example, a square dish-shaped container having a flat bottom and is made of a material having good heat conductivity. The surface is coated with a highly temperature-absorbing coating. 4
Is a pedestal having, for example, a trapezoidal cross section provided at the bottom of the heating chamber 1 and surrounds a central portion of the bottom. With this base 4,
The central portion of the bottom of the heating chamber 1 is in a state where a quadrangular concave portion 4a is formed, and when the container 3 is placed on the pedestal 4, the concave portion 4a becomes a closed space.

Reference numeral 5 denotes a projection provided at the center of the recess 4a formed by the pedestal 4, that is, at the center of the bottom of the heating chamber 1, and has a height lower than that of the pedestal 3. Reference numeral 6 denotes a temperature detecting means mounted in the protruding portion 5, the end portion of which is provided to be the same as the upper surface of the protruding portion 5. The temperature detecting means 6 is configured such that a thermistor is hermetically sealed in, for example, a metal protective portion having a cylindrical outer shape, and air is sealed between the tip of the protective portion and the end of the thermistor. Therefore, a stable temperature can be obtained as compared with the case where the thermistor is exposed and detected.

In this embodiment, the elapsed time when the temperature of the container 3 detected by the temperature detecting means 6 rises to a predetermined temperature is measured, and the heating time of the heater 2 is calculated based on the measured time. Further, a control circuit unit 8 is provided which determines the heating amount of the heater 2 from the temperature of the container 3 and controls the heating amount within the heating time.

In the cooking device configured as described above, the container 3 containing the object to be heated is placed on the pedestal 4 in the heating chamber 1 and the heater 2 is heated by the control circuit section 8. The object to be heated in the container 3 is heated. At this time, the temperature detecting means 6 detects the temperature of the container 3 through the air layer in the closed space formed by the container 3 and the concave portion 4a, and outputs the temperature to the control circuit section 8.

As described above, since the temperature of the container 3 is detected through the air layer in the closed space formed by the container 3 and the concave portion 4a, the temperature of the container 3 is not affected by the heat of the heater 2, Without being affected by the convection air in the refrigerator 1, the malfunction due to the adhesion of the residue or grease of the object to be heated is eliminated, so that the effect of preventing overheating and semi-burning of the object to be heated can be obtained. I have.

[0011]

As described above, according to the present invention, when the container is installed in the heating chamber, the state in which the temperature detecting means is housed in the closed space formed by the container and the concave portion. Therefore, the temperature detecting means is not affected by the heat of the heater, is not affected by the convection air in the heating chamber, and the malfunction due to the adhesion of the residue or grease of the object to be heated is eliminated. The effect is obtained that overheating and semi-burning of the object to be heated can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a side view of the cooking device.

[Explanation of symbols]

1 heating cabinet, 2 heaters, 3 containers, 4 pedestals, 4a
Recess, 5 protrusion, 6 temperature detecting means, 7 door.

──────────────────────────────────────────────────続 き Continued on the front page (56) References Japanese Utility Model 57-166533 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24C 15/14 F24C 7/02 511 F24C 7 / 02 551 F24C 15/16

Claims (2)

(57) [Claims] 1. A container for storing an object to be heated, a heating chamber provided with a heater above, a heating chamber in which the vessel is installed, and a bottom formed in the center of the heating chamber, wherein the container is installed. And a concave portion forming an air gap closed with the container, and a temperature detecting means provided in the concave portion and detecting a temperature of the container. 2. The heating cooking device according to claim 1, wherein a projection is formed in a concave portion formed in a central portion of a bottom of the heating chamber, and the temperature detecting means is disposed in the projection. vessel.