JPH11260537A - Induction heating cooker - Google Patents

Abstract

(57) [Summary] [Object] To obtain a sealed electromagnetic induction heating cooker having a structure in which oil mist and water vapor scattered from cooked food or boiling water or pests caused by spilling from a pan do not enter into the body. A heating coil, a control circuit section, and an operation section are housed in a box having a closed structure, and cooling air is supplied to an outdoor air or an electromagnetic induction heating cooker through an intake duct connected to the closed box. Introducing air in a place away from the installation location or air in a room different from the room in which the electromagnetic induction heating cooker is installed, cools the electromagnetic induction heating cooker, and also discharges exhaust air (hot air) to the exhaust duct 10. The cooling air is exhausted to the position where the cooling air is sucked through.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an electromagnetic induction heating cooker for business use mainly used in a hotel or restaurant kitchen.

[0002]

2. Description of the Related Art Cooling air of an electromagnetic induction heating cooker, which has been used in a conventional kitchen, sucks air near the body by a fan built into the body and passes through a metal or cloth air filter. The object to be cooled in the case is cooled by removing dust and dirt, and is discharged to the outside of the case (see, for example, JP-A-5-121155).

Therefore, when cooking oil such as tempura, oil mist scattered around the container is sucked together with the cooling air and adhered to the inside of the container. In addition, during the cooking of boiled fish, steam and boiling water and the like scattered from the pot are sucked together with the cooling air, and the electronic components of the control circuit unit, the surface of the heating coil, and the blades of the cooling fan are sucked in the same manner as the oil mist. Adhered to the air filter. Dust and a part of the dust in the cooling air can be removed with an air filter, but those that are not removed enter the body and adhere to and accumulate on oil mist and electronic components to which water vapor adheres, and on heating coils. .

Further, if a large amount of dust adheres to the air filter, it causes overheating due to insufficient suction of cooling air.

[0005] In addition, if a large amount of oil mist, water vapor, dust, dust, etc. adheres to electronic parts and heating coils, it may cause electrical troubles. Suction of cooling air has many problems.

[0006]

What is sucked into the body as cooling air is high-temperature air containing a large amount of oil mist and water vapor near the body, and dust and dirt in the air are reduced to oil mist and water vapor. At the same time, they adhere to electronic components and heating coils, causing electrical trouble. Further, it adhered to the air filter and caused overheating. The present invention has been made to solve these problems.

[0007]

Means for Solving the Problems Cooling air for cooling the heating coil and the control circuit unit housed in a box having a closed structure is supplied to outside air or electromagnetic induction heating cooking through an intake duct connected to the closed box. Introduce air at a location distant from the cooker or air from a room other than the room where the electromagnetic induction heating cooker is installed, cool the object to be cooled in the electromagnetic induction cooker, and exhaust air (hot air). The cooling air introduced into the body by discharging the cooling air to the position where the cooling air is sucked through the exhaust duct draws clean cold air that does not contain oil mist, water vapor, hot air, etc. It provides good cooling and does not pollute the inside of the container.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A heating coil and a control circuit section for controlling a high-frequency current supplied to the heating coil, an operation section for performing various input operations connected to the control section, and the like are provided. In an electromagnetic induction heating cooker with a large output used in kitchens such as hotels and restaurants where plates are arranged, the control circuit and heating coil are placed in a closed box to cool the heating coil and control circuit. Air is introduced through the air intake duct connected to the closed box, outside or away from the installation location of the electromagnetic induction heating cooker, or air in a room separate from the room where the electromagnetic induction heating cooker is installed, Cooling is introduced into the body by cooling the object to be cooled in the electromagnetic induction heating cooker and discharging the exhaust air (hot air) to the position where the cooling air is sucked through the exhaust duct. Air is for oil mist, water vapor, dirt-free cool air without the hot air or the like does not pollute the and vessel body can efficiently cooled to be sucked.

In addition, since the exhaust is discharged to a position away from the body via an exhaust duct or the like, the product has a closed structure without openings such as supply and exhaust ports. Oil, juice, and cooked food due to spilling and splashing from a cooking pot performed on a cooking appliance do not enter the interior of the cooking appliance, thereby preventing contamination of the interior of the cooking appliance. By providing the above structure, a sanitary heating cooker is provided to the kitchen.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic structural view showing one embodiment of the present invention.
In this embodiment, a case will be described in which outdoor air is guided into a body through an intake duct, and exhaust air that has cooled the inside of the body is discharged outside again through an exhaust duct.

In FIG. 1, reference numeral 1 denotes a heating coil of an induction heater formed in a spiral shape, and reference numeral 2 denotes a control circuit for controlling a high-frequency current supplied to the heating coil 1, which comprises electronic parts, switching elements and the like. I have.

Reference numeral 3 denotes an operation unit having a power switch 4, a heating on / off switch 5, and a heating power control knob (not shown). The heating coil 1 and the switching elements in the control circuit unit 2 need to be cooled because a large current flows during operation and self-heating occurs.

Reference numeral 6 denotes an intake fan that sucks outdoor intake air into the interior of the electromagnetic induction heating cooker through an intake duct 7, and on the upstream side of the intake fan 6, pests such as dust, dust, and cockroaches are introduced into the interior of the interior. Air filter 8 to prevent entry
It has. Reference numeral 9 denotes an exhaust fan that exhausts air that has been taken in from outside to become hot air through heat exchange through an exhaust duct 10. Reference numeral 11 denotes an insect-preventing net for preventing pests and the like from entering the inside of the container from the exhaust duct 10.

Reference numeral 12 denotes a ceramic plate provided above the heating coil 1. 13 is a ceramic plate 12
Is a cabinet, which forms a closed box by the ceramic plate 12, the top plate 13, and the cabinet 14. In the closed box, the heating coil 1, the control circuit 2, An operation unit 3, an intake fan 6, and an exhaust fan 9 are built in.

Reference numeral 15 denotes a partition plate which divides the inside of the box into upper and lower two chambers and provides a lower chamber 16 and an upper chamber 17. The control circuit unit 2 is installed in the lower chamber 16, the heating coil 1 is installed in the upper chamber 17, the intake fan 6 is connected to the lower chamber 16, and the exhaust fan 9 is connected to the upper chamber 17. The control circuit is cooled, and then the heating coil 1 is cooled, and is efficiently discharged to the outside by the exhaust fan 9 without staying inside.

Reference numeral 18 denotes a frying pan of a cooker, 19 denotes a food, and 20 denotes oil mist and water vapor scattered from the food during cooking. Reference numeral 21 denotes a wall separating an indoor room from an outdoor room, 22 denotes a floor surface of a cooking table, and 23 and 24 denote covers of the intake duct 7 and the exhaust duct 10.

Next, the operation of the present invention having the above configuration will be described.

In the case of cooking by heating, the food 19 is put in a cooker 18 (pot or frying pan), placed on the ceramic plate 12, and the power switch 4 and the heating on / off switch 5 of the operation unit 3 are turned on. High-frequency current flows through the control circuit unit 2 and the heating coil 1 causes high-frequency current to flow therearound, generating magnetic flux lines around the lower surface of the cooker 18 on the ceramic plate 12, generating heat from the bottom of the pot and heating the food 19. You. At the same time, the intake fan 6 and the exhaust fan 9 are operated. Therefore, the outdoor air passes through the intake duct 7 and the air filter 8 and is sent from the intake fan 6 to the lower chamber 16 control circuit unit 2.
Sent to The air sucked from outside has no oil mist or water vapor, and the dust and dust are removed by the air filter 8 and sent into the lower chamber 16, so that the inside of the body is not stained.

Here, the control circuit 2 is cooled, and then the upper chamber 1 is cooled.
The cooling air, which is guided by the heating coil 7 and cools the heating coil 1 to raise the temperature, discharges the heat generated inside the body through the insect net 11 and the exhaust duct 10 by the exhaust fan 9 to the outside.

The heating power at the time of cooking is set by a heating power control knob (not shown) of the operation unit 3 so that the output of the high-frequency current is adjusted and an arbitrary heating power is obtained.

In the case of the present invention, the heating coil 1 and the control circuit section 2 are housed in a closed box, and there are no air supply / exhaust ports or the like as in the conventional apparatus. Oil mist and water vapor are not sucked or penetrated into the electromagnetic induction heating cooker, the interior is kept clean without dirt, and troubles due to oil mist and water vapor do not occur. In addition, the air filter and the insect net prevent dust and dirt, insect pests, and the like from entering the inside of the body, so that troubles caused by these do not occur.

[0022]

According to the present invention, a heating coil, a control circuit for controlling a high-frequency current supplied to the heating coil, an operation unit for performing various input operations connected to the control circuit, and the like are provided. In an electromagnetic induction heating cooker having a ceramic plate disposed above, the control circuit and the heating coil were housed in a box having a closed structure, and the cooling coil for cooling the heating coil and the control circuit was connected to the closed box. Introduce outdoor air or air away from the installation location of the electromagnetic induction heating cooker or air in a room separate from the room where the electromagnetic induction heating cooker is installed through the intake duct, and By cooling the inside and exhausting air (hot air) to the position where the cooling air is sucked through the exhaust duct, the cooling air introduced into the body is oil mist, steam Unstained cool air without the hot air or the like is one that does not pollute the and vessel body can efficiently cooled to be sucked.

Further, since the exhaust is also discharged to a position away from the body through an exhaust duct, the product has a closed structure without an opening such as a supply / exhaust port. Oil, juice, and cooked food due to spills and splashes from the cooking pots above do not enter the electromagnetic cooker and can prevent contamination inside the electromagnetic cooker. To provide.

[Brief description of the drawings]

FIG. 1 is a schematic structural view showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating coil 2 Control circuit part 3 Operation part 6 Intake fan 7 Intake duct 8 Air filter 9 Exhaust fan 10 Exhaust duct 12 Ceramic plate

Claims (1)

[Claims] A control circuit for controlling a heating coil and a high-frequency current supplied to the heating coil; an operation unit connected to the control circuit for performing various input operations; In the arranged electromagnetic induction heating cooker, the heating coil (1), the control circuit section (2) and the operation section (3) are housed in a box having a closed structure to cool the heating coil (1) and the control circuit section (2). The cooling air to be cooled is supplied to the outside via an intake duct (7) connected to the closed box, or to a place apart from the place where the electromagnetic induction heating cooker is installed or a room different from the room where the electromagnetic induction heating cooker is installed. The electromagnetic induction is characterized by a structure that introduces air, cools a cooling target in the electromagnetic induction heating cooker, and discharges exhaust air (hot air) to a position where the cooling air is sucked through the exhaust duct (10). Cooking cooker.