JP2666355B2 - Cooking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker that is used in a general household or the like, has an induction heating source, and performs cooking by placing an object to be cooked in a pot.

2. Description of the Related Art Generally, as a cooking device provided with an induction heating source and cooking an object to be cooked in a pot, as shown in Japanese Utility Model Application Laid-Open No. 53-164964, for example, as shown in FIG. Structures are known. That is, in FIG.
Is a cylindrical outer case whose upper and lower surfaces are open.
A bottom plate 103 having a support leg 102 is fixed to the lower surface of 1 by screwing. Reference numeral 104 denotes a pot storage portion formed of, for example, heat-resistant plastic.
Has a flange 104a provided at its upper end fixed to the upper surface of the outer case 101 by screwing. Reference numeral 105 denotes a first induction coil embedded in the side surface portion 104b of the pan storage unit 104 by molding, and reference numeral 106 denotes a second induction coil embedded in the bottom surface 104c of the pan storage unit 104 by integral molding. .
Reference numeral 107 denotes a pan made of a magnetic material, for example, iron. The pan 107 is detachably mounted on the bottom surface 104c of the pan storage unit 104. 108 is fixed via a support plate 109 in a through hole 104d provided at the center of the bottom portion 104c of the pan storage portion 104,
For example, in the case of a magnetic thermostat, the thermosensitive portion 108a of the thermostat 108 is urged upward by a spring (not shown) so as to be in close contact with the bottom portion 107b of the pan 107. Reference numeral 110 denotes a temperature detection switch that detects the temperature of the side surface portion 107a of the pot 107, and has a heat-sensitive portion 110a formed of, for example, a thermistor. Insertion hole 1 provided in 104b
11 and is constantly urged in the direction of the pot 107 by a spring 112, so that the tip of the heat-sensitive portion 110a is pressed against the side surface 107a of the pot 107. 1
13 is a lid having a knob 114, and this lid 113 is
It is removably mounted on the flange 104a. 115 is the bottom plate 103
A part of an electric circuit is disposed on a control board fixed to the upper surface of the control board 115, and the control board 115 and the induction coils 105 and 106
A blower fan 116 for cooling such as is provided on the upper surface of the bottom plate 103.

Problems to be Solved by the Invention In the configuration of the conventional cooking device described above, since the cooling effect of the blower fan 116 is poor, the self-heating of the electric circuit and the like provided on the control board 115 and the radiant heat from the pan 107 cause There is a risk that the temperature of the electric circuit components, the induction coil, and other components may rise above the allowable temperature.

The present invention has been made to solve the above-mentioned conventional problems, and has an object to provide a cooking device that has a good cooling effect and can reduce the influence of radiant heat from a pan and improve safety. is there.

Means for Solving the Problems In order to solve the above problems, the cooking device of the present invention comprises a protective frame bottom provided with an induction coil and a holding frame cover for holding the induction coil, wherein the inside of the cooking device main body is vertically moved. A control board and a blower fan are arranged between the lower frame constituting the lower part of the cooking device main body and the protection frame cover.

Further, the casing of the blower fan is formed by the lower frame and the protective frame cover.

Operation According to the above configuration, since the inside of the cooking device main body is vertically divided by the protective frame bottom and the protective frame cover,
The radiant heat from the upper part of the pot is not radiated in the direction of the lower frame, and the wind of the blower fan is not sent to the inside of the cooker main body. As a result, the cooling effect of the control board that needs to be cooled Is enhanced.

Further, since the casing of the blower fan is formed by the lower frame and the protective frame cover, the fan efficiency of the blower fan is further increased, and the cooling effect is improved.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view of a cooker according to an embodiment of the present invention, and FIG. 2 is a sectional view of a lower portion of the cooker.

In FIGS. 1 and 2, a non-metallic protective frame bottom portion 3 a constituting a protective frame 3 in which a pot 2 is detachably housed and a metallic metallic cooker body 1 inside a substantially cylindrical cooker main body 1. A protection frame side surface portion 3b is provided, and an upper frame 5 is provided above the protection frame side surface portion 3b. The pot 2 is made of, for example, a clad steel plate having an outer surface made of a magnetic material, and is supported by placing an upper end flange 6 on the upper frame 5. The induction coil 7 is arranged on the outer surface of the protection frame bottom 3 a so as to face the bottom of the pan 2, and is held between the protection frame cover 8. A ferrite 9 is attached to the outer surface of the protective frame cover 8,
The inductive coupling is enhanced to provide magnetic shielding to the outside.

Reference numeral 10 denotes a lower frame that constitutes a lower portion of the cooking device main body 1. A blower fan 11 is disposed between the lower frame 10 and the protective frame cover 8, and the protective frame cover 8 on the upper surface of the blower fan 11 is It is formed so as to cover the blower fan 11, and the rib 12 of the lower frame 10 is formed.
Thus, the casing 13 of the blower fan 11 is formed.
The inside of the cooking device main body 1 is vertically divided by a protective frame bottom 3a and a protective frame cover 8. Further, a heater A14 insulated and insulated, for example, is attached to the protective frame side surface 3b. A control board 15 is fixed to the upper surface of the lower frame 10, and a part of an electric circuit is provided on the control board 15.

On the upper part of the upper frame 5 of the cooking device main body 1, a resin lid is provided.
A pin 18 is formed by a hinge 17 integrally formed with the upper frame 5.
It is supported so that it can be opened and closed freely. A handle 19 is provided on the upper surface of the lid 16, and an inner cover 20 is fixed to the inner surface via a heat insulating material 21. An engaging portion 22 is integrally formed with a portion of the upper frame 5 opposite to the hinge portion 17, and an engaging lever 23 is rotatable on the lid 16 via a pin 24 in opposition to the engaging portion 22. When the lid 16 is closed, the engagement portion 22
The engagement lever 23 is urged by a spring 25 to engage. When the cover 16 is opened, the button 26 attached to the engagement lever 23 is operated. A support pin 27 protrudes from the lower surface side of the inner cover 20 located on the lower surface of the lid 16, and the inner lid 28 is attached to the support pin 27 so as to be vertically movable, and is constantly urged downward by the packing 29. When the lid 16 is closed, the pot 2 is pressed against the pot 2 so that the pot 2 can be closed. On the upper surface of the inner cover 20, for example, a heater B30 insulated and insulated is provided.
The lead wire is connected to an electric circuit (not shown) provided on the cooking device main body 1 via the hinge portion 17.

The temperature of the pan 20 is sensed by the contact 31 in thermal contact with a thermistor (not shown) being urged by a sensor spring 32 to contact the bottom of the pan 2. The temperature information detected by the thermistor is transmitted to an electric circuit (not shown) to control the power of the induction coil 7, the heater A14 and the heater B30.

The following describes the operation of the cooking device having the above-described structure. For example, in the case of cooking rice, if an appropriate amount of rice and water are put in the pot 2 and a switch on an operation panel (not shown) is pressed to energize, the induction coil 7 and the heater A14 are detected by sensing the temperature of the thermistor and programming the electric circuit. By controlling the power of the heater B30, the rice can be cooked and kept warm. Then, during the rice cooking and heat keeping, the blower fan 11 controls the control board 1.
5. The induction coil 7 and the like are cooled, but the protective frame cover 8 is formed so as to cover the blower fan 11, and the cooker main body 1 is vertically divided by the protective frame cover 8 and the protective frame bottom 3a. Therefore, the air blown by the blower fan 11 does not escape above the inside of the cooker main body 1, and the protective frame cover 8 and the lower frame 10 form the casing 13 of the blower fan 11. Is significantly improved, and the cooling effect is enhanced. Furthermore, since the inside of the cooker main body 1 is vertically divided by the protective frame bottom 3a and the protective cover 8, of the radiant heat from the pan 2, the radiant heat from the upper part of the pan 2 is less likely to be received. The temperature rise of the control board 15, the induction coil 7 and the like can be suppressed low.

Advantages of the Invention As is clear from the description of the above embodiment, the cooking device of the present invention divides the inside of the cooking device main body into upper and lower portions of the protection frame cover on which the induction coil is disposed and the protection frame cover holding the induction coil. The control board and the blower fan are arranged between the lower frame constituting the lower portion of the cooking device main body and the protective frame cover, so that the radiant heat from the upper portion of the pan is lower. It is not radiated in the direction, and the wind of the blower fan is not sent to the inside of the cooking device main body. As a result, the control board requiring cooling can be efficiently cooled. Further, since the casing of the blower fan is formed by the lower frame and the protective frame cover, the fan efficiency of the blower fan is further increased, and the cooling effect is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cooker showing one embodiment of the present invention, and FIG.
The figure is a sectional view of the lower frame portion of the cooker as viewed from above, and FIG. 3 is a sectional view showing a conventional cooker. DESCRIPTION OF SYMBOLS 1 ... Cooker main body, 2 ... Pot, 3 ... Protective frame, 3a ... Protective frame bottom part, 3b ... Protective frame side part, 7 ... Induction coil, 8
… Protective frame cover, 10… Bottom frame, 11… Blower fan, 13
... casing, 15 ... control board.

Claims (2)

(57) [Claims] 1. A cooker main body, a protective frame disposed inside the cooker main body, and a pot removably stored in the protective frame, wherein the protective frame is provided with a protective frame bottom and a protective frame. And a side portion, and an induction coil is disposed at the bottom of the protective frame,
While holding the induction coil with a protective frame cover, the protective frame bottom and the protective frame cover are configured to divide the inside of the cooking appliance main body into upper and lower parts, and a lower frame constituting a lower part of the cooking appliance main body. Between the protective frame cover,
A cooker equipped with a control board and a blower fan. 2. The cooker according to claim 1, wherein the casing of the blower fan is formed by a lower frame formed by a protective frame cover.