JPH02236989A - Cooker - Google Patents

Abstract

PURPOSE:To protect a control base, a heating coil, and a floor surface from the heat generated from a pan being heated by directly connecting a thermosensible device with the back surface of the pan to be heated, abutting a thermal insulation plate on the pan, and by forming a space between a top plate and the back surface of the pan, so as to detect temperatures of the pan accurately. CONSTITUTION:As a pan to be heated 11 is held only by a convexity 23 provided on a part of a thermal insulation plate 22, and forms a space 24 between a top plate 13, the heat generated at the pan 11 is conducted and does not escape, achieving good heat efficiency, whereby temperature of the plate 13 is not raised high, and a thermosensible device 14 is not affected. The device 14, being connected with the back surface of the pan 11, can control temperature of the pan 11 accurately. The heat generated at the pan 11 and at a heating coil 12 is prevented by the plate 13 and the space 24, whereby temperature increase in a body 18 is suppressed. As temperature increase in a high frequency control base 15 also can be suppressed, cost reduction due to the downsizing of a cooling fan, and thinning can be achieved, and also temperature increase in a floor surface can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a hot plate type cooking device for general household use.

2. Description of the Related Art Conventionally, this type of cooking device has been disclosed, for example, in Japanese Utility Model Application No. 62-33193.
As shown in the publication, it had a structure as shown in Figure 3. That is, a heating coil 2 is fixed below a top plate 1 on which a heated pot is directly placed, a control board 3 is located below this heating coil 2, and a heat shield is placed below a control board 3. The board was fixed to prevent the temperature of the floor from rising and magnetic flux leaking from the heating coil. Furthermore, the temperature of the heated pot was detected using a heat-sensitive element through the top plate. Furthermore, by rotating the cooling fan 6 to suppress the temperature rise inside the main body, one of the air intake ports 7
External air was brought in through the exhaust port t, and heated air was discharged from the other exhaust port t.

Problems to be Solved by the Invention In the conventional structure as described above, the heat generated from the heated pot heated by the heating coil is transferred to the top plate l.
As the temperature of the top plate l itself increases, the heat-sensitive element j
Because of this, the humidity of the heated pot cannot be accurately detected and controlled, and the heat generated in the heated pot is overplayed.
/, so there was a problem that it took a long time to rise for the first time, making it impossible to start cooking right away.

In addition, in order to protect the control board 3, which is weak against high heat K, from the heat of the top plate L and the heating coil, a large cooling fan 6 is required to powerfully rotate the cooling fan B, making the main body large and heavy. There is a problem that the sound of the spinning wheel is annoying to the ears.

Therefore, the present invention aims to accurately sense the temperature of the heated pot and protect the control board, heating coil, and floor from the heat generated from the heated pot. In order to achieve the above object, the present invention has a heat-sensitive element in direct contact with the back surface of the heated pot, and a part of the heat shield plate and the heated pot in contact with each other, so that the top plate and the back surface of the heated pot A space is formed between the two.

Function: In the cooking device of the present invention, with the above-described configuration, the heated pot is directly heated by the heating coil, and all of the generated heat is transmitted to the food in the heated pot. In addition, since the heat-sensitive element is in direct contact with the back surface of the heated pot, and a space is provided between the top plate and the heated pot, the top plate is not heated by the heat generated in the heated pot. Since the heat-sensitive element is not affected by wetness, the heat-sensitive element can accurately sense the temperature of the heated pot.

Furthermore, since the top plate does not reach high temperatures, it is possible to protect the heating film, control board, and floor surface from the crystal temperature.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

In Fig. 1, l/ is a heated pot in which food is placed and cooked, and it is heated by the magnetic flux generated from heating coil /2, and heating coil l2 is heated by a ceramic top plate l3 covering the top surface. Even if it is insulated. The heated pot l/ comes into contact with a convex portion 23 provided on a part of the heat shield plate 22, and a space 2≠ is formed between the top plate /3 and the heated pot /l. Furthermore, the magnetic flux of the heating coil l2 is generated and controlled by the high frequency control board lJ' located below the heat shield plate 22. l≠ is a heat-sensitive element that detects the temperature of the heated pot/l, which is in contact with the back surface of the heated pot/l and is connected to the high frequency control board/j, which detects abnormal temperature rise of the heated pot/l and controls the adjustment knob l7. Adjustment board that works with /
6 to adjust the temperature.

When the pot to be heated /l is heated, the temperature inside the high-frequency control group /j and the body /r rises, so by turning the cooling fan /l, outside air is drawn through the intake port 20 provided in the body /I. The inside of the body l♂ is cooled by blowing out heated air from the intake and exhaust ports 2l.

Next, the operation of the configuration of this embodiment will be explained.

First, the heated pot// is held only by the convex portion 23 provided in a part of the heat shield vi22, and a space 2≠ is formed between it and the top plate}/3. The heat generated is conducted to other places and does not escape, resulting in good thermal efficiency.The top plate /3 does not reach a high temperature, so it does not affect the heat-sensitive element lμ, and the heat-sensitive element l≠ is in contact with the back surface of the heated pot. Therefore, it is possible to accurately control the temperature of the heated pot //.

Furthermore, the heat generated by the heated pot l/ and the heating coil l2 is prevented by the top plate/3 and the space part 1≠, and the body/
g The internal temperature rise can be suppressed, and the temperature rise of the high frequency control board IT can also be suppressed, so costs can be reduced by downsizing the cooling fan, and the main body can be made thinner, reducing the temperature of the floor surface. Safety is improved because the rise can be suppressed.

Effects of the Invention As described above, the present invention provides heat generated in one heated pot by supporting the heated pot with a temporary heat shield and providing a space between the top plate and the back surface of the heated pot. Since the top plate does not reach a high temperature, it does not affect the heat-sensitive element, and since the heat-sensitive element is directly connected to the back of the heated pot, the temperature of the heated pot can be accurately controlled.

In addition, the heat generated by the heated pot is prevented by the top plate and the space, which prevents the temperature inside the body from rising, making it possible to make the cooling fan smaller and the body thinner, reducing costs and lowering the floor surface. Problems caused by temperature rise are also eliminated.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a cooking device showing one embodiment of the present invention;
The figure is an overall perspective view of a conventional cooking device, and FIG. 3 is a sectional view of the same cooking device. ll: heated pot, l2=heating coil, l3: top plate, ko2: temporary heat shield, l≠: heat sensitive element, 2μ
: Spatial part. Patent applicant: Patent attorney representing Matsushita Electric Industrial Co., Ltd.
Isao Abe Figure 2

Claims (1)

[Claims] A heated pot, a top plate located below the back surface of the heated pot, a heating coil fixed below the top plate, a heat-sensitive element in contact with the back surface of the heated pot, and a shield located at the bottom of the heated pot. 1. A cooking appliance comprising a hot plate, wherein a part of the heat shield plate and the heated pot come into contact with each other to form a space between the top plate and the back surface of the heated pot.