KR20040086636A - Control Circuit of The Microwave Oven Having Coffee Maker - Google Patents

Abstract

PURPOSE: A control circuit of a microwave oven combined with a coffee maker is provided to combine the functions of the microwave oven with the function of the coffee maker. CONSTITUTION: A microwave oven has a magnetron(380), an oven lamp(340), a fan motor(350), and a turntable motor(360) and executes cooking and heating functions. The microwave oven has a coffee maker. A control circuit of the microwave oven combined with the coffee maker comprises a heater(410) for boiling water of the coffee maker; a heater relay(RY4) switching to drive the heater; a fan motor relay(RY2) switching to drive the fan motor; and a microcomputer(310) controlling the switching action of the heart relay and the fan motor relay, to drive the heater and the fan motor if a user inputs an appropriate command for executing the function of the coffee maker.

Description

Control Circuit of Microwave Oven Having Coffee Maker

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to microwave ovens, and more particularly, to a control circuit of a microwave oven for coffee makers.

Generally, a microwave oven is a device for heating a heating object using a microwave. Looking at the configuration, as shown in FIG. 1, a microwave is supplied to the inner center of the cavity assembly 1 forming the basic frame of the microwave oven, and a heating chamber 2 for embedding a heating object is formed. In the adjacent side of the heating chamber (2) is formed an electrical equipment chamber (10) on which electrical components for generating microwaves are mounted. The heating chamber 2 is configured to be opened and closed by the door 4 to a space for heating the food by a microwave supplied with the food to be heated therein.

In addition, an electric field chamber 10 for generating microwaves is provided at one side of the heating chamber 2, and the electric field chamber 10 is configured to be covered by an outer casing 6. The magnetron 12 for oscillating the microwave, the high voltage converter 14 for applying a high pressure to the magnetron 12, the electric component is cooled and the heating chamber 2 is inside the electric chamber 10. A blowing fan 16 or the like for forming an airflow through the inside is provided.

The control circuit block for performing the direct operation control of the microwave oven according to the prior art configured as described above is designed to be concentrated in the rear part of the electric compartment 10.

Hereinafter, the control circuit of the microwave oven according to the prior art, as shown in Figure 2, the noise filter 22 for attenuating the noise contained in the power input from the outside, the magnetron 28 for generating a microwave and , A high voltage converter 27 for generating a high pressure applied to the magnetron 28, a thermostat 23 for detecting internal heat of the electric cabinet generated during cooking, and a light for checking food inside the heating chamber. A fan motor 25 for driving the blower fan 16 for cooling the electric cabinet including the heating chamber, a turntable motor 26 for rotating the turntable (not shown), and a user. It is configured to include a microcomputer 21 to control the overall system according to the cooking instructions.

Referring to the operation of the control circuit of the microwave oven configured as described above, first, the power supplied from the outside to the inside of the microwave attenuates the noise through the noise filter 22 and then supplies the necessary power to the entire system.

When the user puts a cooking object in the heating room, closes the door and inputs a cooking start command, the microcomputer 21 detects this and turns on the first and second relays RY1 and RY2.

At this time, when the user closes the door, the first and second switches SW1 and SW2 are turned on. The microcomputer 21 detects the opening and closing of the door through the on / off operation of the second switch SW2.

When the first and second relays RY1 and RY2 are turned on, the magnetron 28 generates microwaves through the high voltage generated by the high voltage converter 27 and the oven lamp together with the operation of the magnetron 28. 24, fan motor 25 and turntable motor 16 are driven.

By the way, the conventional microwave oven having the structure and the control circuit as described above can combine a variety of functions to perform a variety of food, the general user using coffee beans despite the many functions of the microwave oven If you want to make a coffee maker (Coffee Maker) has to prepare a separate hassle.

That is, not only the cost of purchasing a coffee maker separately but also a microwave oven and a coffee maker are provided and used, so there is a problem of using a relatively large space to provide them.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a control circuit of a microwave oven combined with a coffee maker that can have a function of a coffee maker.

1 is an exploded perspective view showing the internal configuration of a microwave oven according to the prior art

Figure 2 is a circuit diagram showing a control circuit of a microwave oven according to the prior art

Figure 3 is a perspective view showing the internal configuration of a coffee maker microwave oven according to the invention

Figure 4 is a cross-sectional view showing the internal configuration of a coffee maker microwave oven according to the present invention

5 is a circuit diagram showing a control circuit of a coffee maker and microwave oven according to the present invention;

Explanation of symbols for main parts of the drawings

310: microcomputer 320: noise filter

330: first thermostat 340: oven lamp

350: fan motor 360: turntable motor

204, 370: high voltage converter 202, 380: magnetron

410: heater 420: second thermostat

In order to achieve the above object, the control circuit of the microwave oven combined with the coffee maker according to the present invention includes a magnetron, an oven lamp, a fan motor, and a turntable motor to perform a cooking heating function, and in a microwave oven having a coffee maker, A heater for boiling water of the coffee maker, a heater relay for switching to drive the heater, a fan motor relay for switching for driving the fan motor, and the heater when a user inputs a corresponding command for performing a coffee maker function. And a microcomputer for controlling switching operations of the heater relay and the fan motor relay to drive the fan motor.

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating a control circuit of a coffee maker combined microwave oven according to the present invention.

Figure 3 is a perspective view showing the internal configuration of a microwave oven for coffee maker according to the present invention, Figure 4 is a cross-sectional view showing the internal configuration of a microwave oven for coffee maker according to the present invention, Figure 5 is a coffee maker combined use according to the present invention A circuit diagram showing a control circuit of a microwave oven.

In the microwave oven according to the present invention, as shown in FIG. 3, the coffee maker casing 100 is provided in the electric equipment chamber 200 provided adjacent to the heating chamber of the microwave oven. The coffee maker casing 100 is installed in the front part of the electric room 200, so that the user can make coffee using coffee beans in addition to the food heating function unique to the microwave oven.

The electric equipment chamber 200 of a microwave oven is a space in which electrical components are built so as to generate microwaves for heating foods put into a heating chamber of a microwave oven, as is known. That is, the magnetron 202 for generating microwaves, the high voltage converter 204 for applying a high voltage to the magnetron 202, and the electric field chamber generated during operation of these parts inside the electric chamber 200. 200, components such as a blower fan 206 for dissipating heat inside are typically installed.

In addition, the control circuit block for controlling the electrical components as described above is designed to be concentrated in the rear portion of the electrical equipment room 200, the coffee maker casing 100 in the front predetermined portion of the electrical equipment room 200 It is installed.

Here, as shown in Figure 4, the coffee maker casing 100, the front is installed in an open shape, the upper water tank 110, the lower portion of the filter cup 120, and the filter cup ( 120, a jug 130 made of, for example, glass is installed.

Referring to the control circuit of the coffee maker microwave oven having the above-described structure as follows.

As shown in FIG. 5, the control circuit of the microwave oven combined with the coffee maker includes a magnetron 380, an oven lamp 340, a fan motor 350, and a turntable motor 360 to provide cooking heating. In addition, in the microwave oven having a coffee maker, a heater 410 for boiling water of the coffee maker, a heater relay RY4 for switching to drive the heater 410, and the fan motor 350 Fan motor relay (RY2) for switching to drive, when the user inputs a corresponding command for performing the coffee maker function, the heater relay (RY4) (hereinafter, The microcomputer 310 controls switching operations of the fourth relay) and the fan motor relay RY2 (hereinafter referred to as a second relay).

The apparatus further includes a first thermostat 330 for detecting internal heat generated when a cooking heating function, which is a unique function of the microwave oven, and a second thermostat 420 for detecting internal heat generated when the coffee maker function is performed. It is configured by.

In the control circuit of the coffee maker combined microwave oven according to the present invention configured as described above, the power supplied from the outside to reduce the noise through the noise filter 320 to supply the power required throughout the system.

First, the operation of the control circuit for performing the cooking heating function of the microwave oven, when the user puts the object to the heating room, closes the door and inputs a cooking start command corresponding to the cooking heating function, the microcomputer 310 detects this The first, second and third relays RY1, RY2 and RY3 are switched on.

Here, the third relay RY3 is turned on when the door is closed, that is, when the second switch SW2 is turned on, and the first relay RY1 is turned on and the third relay RY3 is turned on. ) Is turned on under the control of the microcomputer 310 in the on condition.

Subsequently, in response to the switching-on operation of the first, second and third relays RY1, RY2, and RY3, the magnetron 380 receives the high voltage output from the secondary side of the high voltage converter 370 to receive micro Generate a wave. At the same time, the oven lamp 340, the fan motor 350 and the turntable motor 360 is driven to perform a cooking heating function.

At this time, the fourth relay RY4 is in a switching off state.

In addition, when the user inputs a command corresponding to the coffee maker function, the microcomputer 310 senses this and switches on the second and fourth relays RY2 and RY4 when the user inputs a command corresponding to the coffee maker function.

The heater 410 is driven through the switching-on operation of the second and fourth relays RY2 and RY4 to warm the coffee maker's water, and at the same time, the fan motor 350 is driven to cool the internal heat of the electrical equipment room. Let's do it.

In the present invention, a second motor, that is, a fan motor relay RY2, is provided to use the fan motor 350 driven when the cooking heating function is performed even when the coffee maker function is performed. Direct control from

Therefore, the present invention combines a coffee maker function with a cooking heating function which is a unique function of the microwave oven by designing a coffee maker in a microwave oven configuration.

The control circuit of the coffee maker combined microwave oven according to the present invention described above has the following effects.

First, according to the design of the coffee maker in the microwave oven, it is possible to maximize not only the convenience of the user but also the product function by combining the heating function of the microwave with the function of the coffee maker to make coffee.

Second, by designing a microwave oven and a coffee maker as a single home appliance, there is an advantage of reducing the beach space occupied by the home appliance.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (2)

In the microwave oven equipped with a magnetron, an oven lamp, a fan motor, a turntable motor to perform cooking heating function, and a coffee maker, A heater for boiling water of the coffee maker, A heater relay for switching to drive the heater, A fan motor relay for switching to drive the fan motor; Coffee maker microwave oven characterized in that it comprises a microcomputer for controlling the switching operation of the heater relay and fan motor relay to drive the heater and fan motor when the user inputs a corresponding command to perform the coffee maker function Control circuit. The method of claim 1, The fan motor A control circuit for a coffee maker combined microwave oven, which is provided to be used jointly when performing a cooking heating function or a coffee maker function, and is driven through a switching operation of the fan motor relay.