JPS59100314A - Heating cooker - Google Patents

Abstract

PURPOSE:To accurately and automatically control the temperature of a baking plate by a structure wherein thin heat transfer passages are formed over nearly the whole surface of the baking plate and at the same time a temperature sensor is brought into contact with a part of the heat transfer passages. CONSTITUTION:Thin heat transfer passages 11 are arranged at a baking plate 6 by forming grooves on its back surface. The heat transfer passages 11 consist of a large number of main passages 11a disposed in an array in the lateral direction of the plate 6 and a single auxiliary passage 11b crossing the main passages 11a. A temperature sensor 7 is brought into contact with the one end of the auxiliary passage 11b. Because the heat capacity of the baking plate 6 is smaller as compared with the other part, the temperature drop developed by placing stuffs to be cooked such as raw meat or the like is quickly transmitted to all the heat transfer passages 11. Consequently, the temperature sensor 7 detects said temperature change and acts so as to make the valve opening of a gas control valve 9 wider in order to strengthen the heating power of a gas burner 5. In such a manner as mentioned above, the temperature detection of the baking plate by the temperature sensor can be accurate, resulting in performing sure cooking by baking.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating cooker that performs grilling such as grilled meat through a grilling grate, and is configured to accurately control the automatic temperature of the grilling plate.

In this type of heating cooker, the baking plate is made of iron, for example, and has a certain thickness to increase heat capacity in order to eliminate uneven baking. The temperature of this plate was detected by contacting a part of the plate with a temperature sensor.

However, with the above configuration, even if there is a temperature drop at a location far from the temperature detection point of the plate, such as in a raw meat apparatus, it takes time for the temperature sensor to detect the temperature drop. Due to such poor responsiveness, conventional methods lack accuracy in temperature control, and as a result, have the disadvantage that reliable baking cannot be performed.

The present invention eliminates these conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

In the figure, 1 is a heating cooker built into a table top 2, a stove case 3. Soup saucer 4. Gas Nox 5. It is composed of an iron plate (7) heated by the gas burner 6 and a temperature sensor 7 which detects the temperature of the firing brake 6 and controls the heating power of the gas burner 6. . The thermal power control means of the gas nozzle 6 is configured such that a liquid expansion type gas control valve 9 is connected in the middle of the gas supply path 8, and a liquid having a large coefficient of thermal expansion is sealed therein. <It is connected to the temperature sensor 7 via the interface 10.

On the other hand, the firing plate 6 is provided with a thin heat transfer passage 11 by forming grooves all along its back surface. The heat transfer passage 11 includes a large number of main passages 11a arranged in parallel in the lateral direction of the plate 6, and one sub passage 1 that crosses these main passages 11a.
1b, and the temperature sensor 7 at the tip is connected to this sub passage 1.
It comes into contact with one end of 1b.

In the above configuration, the heat transfer passage 11 formed in the baking plate 6 is thin and has a small heat capacity compared to other parts, so that the temperature drop when food such as raw meat is placed is due to the heat transfer passage 1X. will be promptly communicated to all. Therefore, the temperature sensor 7 detects the temperature fluctuation and increases the opening degree of the gas control valve 9, thereby increasing the heating power of the gas bar 6.

Although a gas burner is used as the heat source in the embodiment described in (-), an electric heater may be used instead of an oil burner, and an electric one may be used as the heat generation control means.

Furthermore, it is desirable that the heat transfer passages be formed over the entire surface of the baking plate as much as possible, for example in a spiral shape.

It is also possible to form them radially.

As is clear from the description of the above embodiments, according to the present invention, the temperature of the baking plate can be accurately detected by the temperature sensor, and baking can be carried out more reliably.

In addition, since it is only necessary to form a thin heat transfer passage, the configuration is simple and the material cost of the plate can be reduced.
It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a heating cooker in an embodiment of the present invention,
FIG. 2 is a back view of the firing plate. 5... Heat source (gas burner), 6... Baking plate, 7... Temperature sensor, 11... Heat transfer passage. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure f(6//α

Claims (1)

[Claims] Equipped with a baking plate that is heated by a heat source, and a temperature sensor that detects the temperature of this baking plate and controls the amount of heat generated by the heat source, the baking plate has a thin heat transfer passage formed almost on its entire surface. A heating cooker in which a temperature sensor is brought into contact with a part of the heat transfer passage.