JPH03264009A - Electric cooking device - Google Patents

Abstract

PURPOSE:To keep a heated pan from sliding even if a cooked material is stirred and to make a cooking device to quickly and correctly respond to a temperature change by detachably engaging a heat sensitive portion with a heat receiving portion. CONSTITUTION:A heated pan 11 is placed on a top plate 13, and a recess heat receiving portion 16 provided on the base of the heated pan 11 is inserted in and engaged with a cylindrical heat sensitive portion 14 including a heat sensitive element 15 inside. Accordingly, as the heated pan 11 is positioned on the top plate 13, the heated pan 11 is prevented from sliding on the top plate 13 when cooked material in the heated pan 11 is stirred during cooking, and the temperature is transmitted from the heat receiving portion 16 directly to the heat sensitive portion 14 so that the temperature of the heated pan 11 can be correctly controlled to a set temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to a so-called smooth top microwave oven or microwave oven in which a top plate used in general households, such as a ceramic plate or a heat-resistant glass plate, is disposed above a heating element or heating coil. This invention relates to an electromagnetic induction heating cooker.

(2) Prior Art An example of a conventional electric cooker of this type is an electromagnetic induction cooker (hereinafter referred to as an electromagnetic cooker), the configuration of which is shown in Japanese Utility Model Application No. 62-33193. It was common. The configuration will be explained below with reference to FIG.

As shown in the figure, a heating coil 2 is fixed below a top plate 1 on which a pot 9 to be heated is placed.
A control board 3 is located below the control board 3, and a heat shield plate 4 is fixed under the control board 3 to prevent a temperature rise on the floor surface and magnetic flux leakage from the heating coil 2. Further, the temperature of the heated pan 9 is detected by one heat-sensitive element 5 located at the center of the heating coil 2 via the top plate 1. Furthermore, in order to suppress the temperature rise inside the main body, by rotating the cooling fan 6, outside air is sucked in from one suction lower, and heated air is discharged from the other exhaust port 8.

Problems to be Solved by the Invention In such a conventional electromagnetic cooker, since the steel to be heated 9 heated by the heating coil 2 is placed on the top surface of the top plate 1 made of ceramic and has a smooth surface, the cooking process is difficult. When the cooking material inside the heated silver 9 is stirred, the heated steel 9 may slide every time it is stirred, and in the worst case, the heated steel 9 may fall off the top plate 1, causing the cooking material to spill or become unusable. There were problems such as people getting burned. In addition, heating coil 2
Since the temperature of the heated steel 9 is sensed by the heat-sensitive element 5 through the top plate 1 made of ceramic with poor thermal conductivity, there is also the problem that it is difficult to accurately control the temperature of the heated steel 9. . Furthermore, if the bottom surface of the heated steel 9 is deformed and a gap is created between it and the top plate 1, or if foreign matter such as cooking food is attached to the bottom surface of the heated steel 9, the heated steel 9 There was a problem in that the temperature control of Steel 9 became more uncertain. For example, in tempura cooking, the heated steel 9
The heat-sensitive element 5 cannot follow the temperature rise change, and as a result,
The temperature of the heated steel 9 will be much higher than the set temperature, and there is a risk that the oil will sometimes reach the ignition point and cause a fire.
In addition, when cooking food is put into the heated steel 9, the heated steel 9
Even if the temperature of the cooking device decreases, the heat-sensitive element 5 remains at a high temperature, so power is not applied to the heating coil 2, resulting in a problem of poor cooking quality.

The present invention has been made to solve the above-mentioned problems, and a first object of the present invention is to provide an electric cooker that is easy to cook and does not cause the heated steel 9 to slide even if the food in the heated silver 9 is stirred during cooking. It is said that

The second object is to provide an electric cooker in which the steel to be heated 9 is securely fixed and the temperature is controlled quickly and accurately in response to temperature changes.

Means for Solving the Problems In order to achieve the above first object, the present invention provides a heating source;
a top plate that covers the top surface of the heating source; a heat sensing section that penetrates the top plate and projects upward and includes a heat sensitive element therein; and a concave sensing section that is placed on the top surface of the top plate and forms a concave sensing section on the bottom surface. 1. The heat sensing section and the sensing section are detachably engaged with each other.

In addition, in order to achieve the second objective, a male screw is screwed into the heat sensing part, a female screw is screwed into the sensing part, and the sensing part is removably screwed into the heat sensing part. .

According to the above-described structure, the sensing part on the bottom surface of the steel to be heated is removably engaged with the heat sensing part protruding from the top plate, so the steel to be heated can be fixed on the top plate, and the heating element can be fixed on the top plate. Even if the food in the heated pot is stirred, the heated steel will not slide.

In addition, since the sensing part on the bottom surface of the heated steel is removably screwed onto the heat sensing part protruding from the top plate, the heated steel can be securely fixed, and the temperature change of the heated steel can be quickly adjusted. It can respond accurately and always control the temperature of the heated steel to the set temperature.

EXAMPLE Below, the first example of the present invention will be explained using electromagnetic cooking as an example.
This will be explained with reference to FIGS.

As shown in FIG. 1, numeral 11 is a heated steel in which food is placed and cooked, and is heated by magnetic flux generated from a heating coil 12, which is placed on a top plate 13 and serves as a heating source. Further, the heating coil 12 is insulated by a ceramic top plate 13 covering the upper surface thereof. 14 is made of metal (for example, made of aluminum) with good thermal conductivity and penetrates approximately the center of the top plate 13 and protrudes upward from the upper surface of the top plate 13, and includes a heat-sensitive element 15 connected to the high-frequency control section 17 inside. With a cylindrical heat-sensitive part,
It engages with a concave sensing section 16 protruding from the bottom surface of the heated steel 11 to sense the temperature of the heated steel 11 and sends the signal to the high frequency control section 17 . Note that the heat sensitive section 14 is connected to the main body 2.
4.It is attached so that it can be raised and lowered freely. In addition, the heating coil 12
The magnetic flux is generated and controlled by a high frequency control section 17 disposed within the main body 24. Numeral 18 is an adjustment knob for adjusting temperature and setting firepower. 20 is a cooling fan, and an intake port 21 provided on the side of the body 19
Air is sucked in and exhausted from the exhaust port 22 to cool the inside of the main body 24.

To explain the operation in the above configuration, the top plate 1
When the heated steel 11 is placed on the heated steel 11 and the cylindrical heat sensitive part 14 containing the heat sensitive element 15 is inserted and engaged with the concave sensing part 16 provided on the bottom surface of the heated steel 11, the heated steel 11 is placed on the heated steel 11. Since the heating steel 11 is positioned on the top plate 13, when the food in the heated steel 11 is stirred during cooking, the heated object #A1
1 is prevented from sliding on the top plate 13, and the temperature is directly transmitted from the sensing section 16 to the heat sensing section 14, so that the heated steel 11 is accurately controlled to the set temperature.

Next, a second solution is shown in FIG. The difference from the first solution is that a male screw 23 is screwed into the heat sensing part 14 fixed to the main body 24, and a female screw 23 is screwed into the sensing part 16, and the sensing part 16 is attached to and detached from the heat sensing part 14. The reason is that it has a structure that allows it to be screwed on freely.

According to this configuration, the heated steel 11 is positioned on the top plate 13 by the screwing of the heat sensitive part 14 and the sensitive part 16, and the thermal conductive coupling between the heat sensitive part 14 and the sensitive part 16 is improved. Since this is reliable, the heated steel 11 is prevented from sliding on the top plate 13, and the temperature is more accurately controlled to the set temperature. Furthermore, even if foreign matter is attached to the bottom surface of the heated steel 11, the heat sensitive part 14, or the sensitive part 16, the foreign matter is removed or crushed by the rotation of the heated steel 11 during screwing, and the heat sensitive Factors that impede heat transfer between the section 14 and the sensing section 16 are removed.

Although the embodiment of the present invention has been described above using an electromagnetic cooker, the present invention can also be implemented in a so-called smooth top range in which a heater is used as a heat source and a top plate is disposed to cover the heater. It is possible.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, a concave sensing portion provided on the bottom surface of the steel to be heated is used as a heat sensing portion that protrudes from the top plate and includes a heat sensing element inside. Since the heated steel is positioned on the top plate by removably engaging the parts, even if the food in the heated pot is stirred during cooking,
It is possible to provide an electric cooker in which the steel to be heated does not slide on the top plate and is safe and easy to cook.

In addition, since the heat sensitive part and the sensing part are removably screwed together to position the heated steel on the top plate, the thermal conductive connection between the heat sensitive part and the sensitive part becomes more reliable, and the heated steel It is possible to provide an electric cooker that accurately controls the set temperature.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of an electric cooking device according to one embodiment of the present invention, Fig. 2 is a side sectional view of an electric cooking device according to another embodiment of the invention, and Fig. 3 is an overall perspective view of the electric cooking device. , FIG. 4 is a side sectional view of a conventional electric cooker. 11... Steel to be heated, 12... Heat source (
heating coil), 13...Top plate, 14
...Heat-sensitive part, 15... Heat-sensitive element, 16
... Sensing part, 23 ... Male thread, female thread.

Claims (2)

[Claims] (1) a heat source, a top plate that covers the top surface of the heat source, a heat sensitive part that penetrates the top plate and protrudes upward and includes a heat sensitive element therein, and is placed on the top surface of the top plate and has a recessed bottom surface. What is claimed is: 1. An electric cooking device comprising: a heated pot having a shaped sensing portion formed thereon; and the heating portion and the sensing portion are removably engaged. (2) The electric cooking appliance according to claim 1, wherein the heat sensing section has a male screw, the sensing section has a female screw, and the sensing section is removably screwed onto the heat sensing section.