KR20090106071A - Cooker and method for controlling the same - Google Patents

Abstract

PURPOSE: A cooker and a method for controlling the same are provided to cook food accurately according to cooking temperature set up in advance. CONSTITUTION: A cooker comprises a plurality of heating sources, an input part(60), a temperature sensor(50), and a controller(70). A plurality of heating sources comprises a convection device(40). The heating source comprises one or more among magnetron(10), an upper heater(20) and a bottom heater(30). The convection device heats the food in a cavity(1). The actuating signal for the drive of the heating source is input to the input part. The temperature sensor senses the temperature of the cavity. The controller drives and stops the convection device according to the temperature of the cavity compared with the standard temperature.

Description

Cooker and method for controlling the same}

The present invention relates to a cooking appliance, and more particularly, to a cooking appliance having a plurality of heating sources and a control method thereof.

A cooking appliance is a home appliance that cooks food using electricity or gas. The cooking apparatus is provided with a heating source for heating food, such as an electric component such as a magnetron for generating microwaves, a heater for generating heater heat, and a convection device for circulating high temperature air. One or more of these heating sources are driven at the same time to cook food that is seated inside the cooking chamber.

Looking at the cooking process of the food by such a cooking apparatus, one or more heating sources are driven at the driving temperature input by the user so that the internal temperature of the cooking chamber maintains a preset cooking temperature. However, in the case of cooking food using a plurality of heating sources, when each heating source is driven at the driving temperature, since the heat of each heating source is substantially supplied to the inside of the cooking chamber, the internal temperature of the cooking chamber may be low. The food may be overheated beyond the set cooking temperature.

The present invention is to solve the problems according to the prior art as described above, an object of the present invention is to provide a cooking apparatus for precisely cooking food according to a preset cooking temperature using a plurality of heating sources and a control method thereof. It is.

According to an embodiment of the present invention for achieving the above object, the present invention comprises a plurality of heating sources including a convection device for heating food in the cooking chamber; An input unit configured to receive an operation signal for driving the heating source; A temperature sensor for sensing a temperature of the cooking chamber; And when the input unit receives an operation signal driven by a plurality of heating devices including the convection device, the convection according to whether the temperature of the cooking chamber sensed by the temperature sensor is equal to or greater than a preset reference temperature. A control unit for controlling the device to be driven / stopped; It includes.

According to another embodiment of the present invention, the present invention comprises the steps of the control unit, determining whether two or more of the heating source including the convection device is driven; If it is determined that two or more heating sources including the convection device are driven, the controller determines whether the temperature of the cooking chamber is equal to or greater than a preset reference temperature; And controlling, by the controller, the convection device to be driven / stopped according to whether the temperature of the cooking chamber is equal to or higher than the reference temperature. It includes.

According to another embodiment of the present invention, the present invention comprises the steps of receiving the input of the driving temperature of the heating source and the number of the heating source to drive the plurality of heating source; Determining, by the control unit, the type and number of the heating sources driven by the input unit; The control unit controls the heating source to be driven at the driving temperature when the number of the heating sources to be driven is one or two or more except the convection device, and the number of the heating sources to drive is the convection device. Determining whether the temperature of the cooking chamber is equal to or higher than a reference temperature set by the apparatus when two or more are included; And controlling, by the controller, the convection device to be driven / stopped according to whether the temperature of the cooking chamber is equal to or higher than the reference temperature. It includes.

According to the present invention, there is an advantage that food can be efficiently cooked using a plurality of heating sources at the same time.

Hereinafter, with reference to the accompanying drawings an embodiment of a cooking appliance according to the present invention will be described in detail.

1 is a configuration diagram schematically showing an embodiment of a cooking appliance according to the present invention.

Referring to FIG. 1, in the present embodiment, as the heating source for cooking food in the cooking chamber 1, the magnetron 10, the upper heater 20, the bottom heater 30, and the convection device 40 are provided. Used.

The magnetron 10 oscillates the microwave for cooking food in the cooking chamber (1). The upper heater 20 and the bottom heater 30 generate heater heat for cooking food in the cooking chamber 1. The heater heat of the upper heater 20 and the bottom heater 30 radiates heat of food in the cooking chamber 1. For example, a halogen heater may be used as the upper heater 20, and a siege heater may be used as the bottom heater 30. In addition, the convection device 40 circulates hot air into the cooking chamber 1 to heat convection of the food in the cooking chamber 1.

In addition, the cooking chamber 1 is provided with a temperature sensor 50. The temperature sensor 50 detects a temperature inside the cooking chamber 1.

In addition, the input unit 60 receives an operation signal for cooking food in the cooking chamber 1. More specifically, the input unit 60, the number of the heating source to be used for cooking food in the cooking chamber 1, that is, the magnetron 10, the upper heater 20, the bottom heater 30 and An operation signal for selecting any one or two or more of the convection device 40 is received. In addition, the input unit 60 receives a driving temperature for driving the heating source used for cooking food in the cooking chamber 1. The input unit 60 receives the driving temperature at a temperature or a predetermined driving level for each step as shown in Table 1 below.

operating level temperature (° F) One 300 2 310 3 320 4 330 5 340 6 350 7 375 8 400 9 425 10 450

And the control unit 70 controls the operation of the heating source. In detail, the controller 70 may be any one of the magnetron 10, the upper heater 20, the bottom heater 30, and the convection device 40 according to an operation signal input by the input unit 60. Or two or more are controlled to be driven. In addition, the controller 70 is independent of the temperature of the cooking chamber 1 detected by the temperature sensor 50 when one or more of the heating sources or two or more of the convection device 4 are driven. The heating source is controlled to be driven to the driving temperature. However, when two or more of the heating sources including the convection device 40 are driven, the control unit 70 controls the heating sources except for the convection device 40 to be driven to the driving temperature. The convection device 40 controls to repeat driving / stopping according to the temperature of the cooking chamber 1 detected by the temperature sensor 50.

In other words, the control unit 70 controls the heating source to be driven to the driving temperature when two or more of the heating sources including the convection device 40 are driven. When the temperature of the cooking chamber 1 sensed by the temperature sensor 50 is increased to be equal to or greater than a predetermined temperature (hereinafter referred to as 'reference temperature'), the controller 70 The heating source except for 40 is controlled to be driven to the drive temperature, and the convection device 40 is controlled to be stopped. In addition, the controller 70 drives the convection device 40 when the temperature of the cooking chamber 1 sensed by the temperature sensor 50 decreases below the reference temperature. At this time, the reference temperature may be set to 350 ° F.

Hereinafter, with reference to the accompanying drawings an embodiment of a cooking apparatus control method according to the present invention will be described in more detail.

2 is a control flowchart showing an embodiment of a cooking apparatus control method according to the present invention.

Referring to FIG. 2, first, the input unit 60 receives an operation signal, that is, the number of heating sources to drive and the temperature at which the heating sources are driven, that is, the driving temperature. (S11) And the controller 70 performs the step S11. In operation S13, it is determined whether the input unit 60 receives an operation signal for driving two or more heating sources including the convection device 40.

When it is determined in step S13 that the input unit 60 receives an operation signal for driving two or more heating sources including the convection device 40, the control unit 70 drives the heating source. The controller 70 compares the temperature of the cooking chamber 1 and the reference temperature detected by the temperature sensor 50 to determine whether the temperature of the cooking chamber 1 is equal to or higher than the reference temperature. (S17)

When the temperature of the cooking chamber 1 becomes equal to or higher than the reference temperature in step S17, the control unit 70 stops the convection device 40. (S19) And the convection device 40 stops. In this state, the controller 70 compares the temperature of the cooking chamber 1 with the reference temperature, and determines whether the temperature of the cooking chamber 1 is less than the reference temperature (S21). When the temperature of the cooking chamber 1 is less than the reference temperature, the control unit 70 drives the convection device 40 again (S23). The step S23 will be repeated many times.

Next, the control unit 70 determines whether cooking of food is completed. (S25) Completion of cooking of food in step S25 is based on an operation signal input by the input unit 60 in step S11. Thus it can be completed or forced by the user. If it is determined that cooking of the food is completed in step S25, the controller 70 controls the heating source to be stopped.

In the case where it is determined in step S13 that the input unit 60 receives an operation signal for driving one heating source or an operation signal for driving two heating sources except for the convection device 40, the controller 70 controls the heating source to be driven (S31). The controller 70 determines whether cooking of the food is completed, and controls the heating source to be stopped accordingly (S33) (S27). )

Within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those skilled in the art, the scope of the present invention should be interpreted based on the appended claims. .

In the above-described embodiment, the heating source includes, but is not necessarily limited to, the magnetron, the upper heater, the bottom heater, and the convection device. For example, the heating source may include two or three of the magnetron, the upper heater, the bottom heater, and the convection device.

According to the cooking apparatus and the control method according to the present invention configured as described above, when cooking the food using a plurality of heating sources including the convection device, when the temperature of the cooking chamber is above the predetermined reference temperature When the temperature of the cooking chamber is lower than the reference temperature, the convection device is stopped and the convection device is driven again. Therefore, according to the present invention, when cooking food by driving a plurality of heating sources, the internal temperature of the cooking chamber maintains a preset cooking temperature corresponding to the driving temperature input by the user, so that food is not overheated and the preset cooking is performed. The effect of cooking accurately with temperature can be expected.

1 is a configuration diagram schematically showing an embodiment of a cooking appliance according to the present invention.

Figure 2 is a control flow diagram showing an embodiment of a cooking apparatus control method according to the present invention.

Claims (7)

A plurality of heating sources including a convection device for heating food in the cooking chamber; An input unit configured to receive an operation signal for driving the heating source; A temperature sensor for sensing a temperature of the cooking chamber; And When the input unit receives an operation signal driven by a plurality of heating devices including the convection device, the convection device is determined according to whether the temperature of the cooking chamber detected by the temperature sensor is equal to or greater than a preset reference temperature. A control unit to control the driving / stop; Cooking appliance comprising a. The method of claim 1, The heating source, cooking apparatus including at least one or more of the magnetron, the upper heater and the bottom heater and the convection device. The method of claim 1, The reference temperature is 350 ° F cooker. Determining, by the control unit, whether two or more of the plurality of heating sources including the convection device are driven; If it is determined that two or more heating sources including the convection device are driven, the controller determines whether the temperature of the cooking chamber is equal to or greater than a preset reference temperature; And Controlling, by the controller, the convection device to be driven / stopped according to whether the temperature of the cooking chamber is equal to or higher than the reference temperature; Cooking apparatus control method comprising a. Receiving, by an input unit, a number of heating sources driven among a plurality of heating sources and a driving temperature of the heating sources; Determining, by the control unit, the type and number of the heating sources driven by the input unit; The control unit controls the heating source to be driven at the driving temperature when the number of the heating sources to be driven is one or two or more except the convection device, and the number of the heating sources to drive is the convection device. Determining whether the temperature of the cooking chamber is equal to or higher than a reference temperature set by the apparatus when two or more are included; And Controlling, by the controller, the convection device to be driven / stopped according to whether the temperature of the cooking chamber is equal to or higher than the reference temperature; Cooking apparatus control method comprising a. The method according to claim 4 or 5, The reference temperature is 350 ° F cooker control method. The method according to claim 4 or 5, The control unit controls the cooking apparatus to stop when the temperature of the cooking chamber is higher than the reference temperature, and stops the convection device when the temperature of the cooking chamber is lower than the reference temperature.

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