KR200182327Y1 - A ventilating apparatus in multifunction microwave oven - Google Patents

Abstract

The present invention is to automatically control the ventilation device for controlling the movement of air used for cooling the machine room of the multifunctional microwave oven and also used for ventilation of the cooking chamber by the moving pressure of the air. The present invention has an electrical outlet 120 having an outlet 144 corresponding to the opening 132 formed in the diaphragm 130 separating the electric chamber 120 and the cooking chamber 110 and an inlet 142 open to the bottom. Including a case 140, a hinge shaft 152 installed on the upper side of the inlet 142, the hinge shaft 152 is rotated by the hinge shaft 152, and the opening and closing door 150 is installed to open and close the inlet 142 As the ventilation device, the opening and closing door 150 is operated by the wind power of the cooling air to automatically open and close the inlet 142, thereby simplifying the configuration required for the ventilation control to improve productivity, and does not require power supply, thereby reducing power consumption. There is a saving effect.

Description

Ventilation device of multifunctional microwave oven {A VENTILATING APPARATUS IN MULTIFUNCTION MICROWAVE OVEN}

The present invention relates to a ventilator of a multi-functional microwave oven, and in particular, by automatically controlling the ventilator for controlling the movement of air, which is used for cooling the machine room and used for ventilation of the cooking chamber, by the moving pressure of the air. To improve productivity and reduce power consumption.

In general, a microwave oven is a device for cooking food by a high frequency, and is divided into a cooking chamber and an electrical equipment room. In the electrical equipment room, a magnetron, a high pressure transformer, a cooling fan, etc. are installed, and the cooking chamber is provided with a tray on a bottom plate. The food placed on the tray is irradiated with high frequencies generated by the magnetron.

And all microwave ovens stably apply high voltage induced from the high voltage transformer attached to the bottom plate of the electric room to the magnetron, and high frequency is oscillated from the magnetron. Irradiated into the cooking chamber.

However, in order to prevent the electric room from overheating above the normal temperature, the magnetron and the high pressure transformer are cooled by the wind generated by the cooling fan in order to prevent the electric room from being overheated above the normal temperature because a lot of heat is generated in the high voltage transformer and the magnetron. have.

In addition, the wind cooled by the high-pressure transformer is introduced into the cooking chamber through the intake duct to discharge the steam generated in the cooking chamber to the outside through the exhaust duct installed on the other wall of the cooking chamber, thereby preventing the cooking chamber front window from sprinkling. .

In addition to the microwave and the high-frequency single-function microwave and high-frequency cooking, the cooking cooking function to heat the food by the radiant heat of the heater installed in the upper or lower portion of the cooking chamber, or the convection fan installed on one side of the cooking chamber. There is also a multi-functional microwave oven with an oven cooking function that cooks food by convection of hot air.

By the way, when performing the oven cooking function with such a multi-functional microwave oven, the outside air should not be introduced into the cooking chamber, the multi-functional full-range oven is provided with a ventilation device for opening and closing the circulation air for removing steam supplied from the electrical equipment room.

One conventional example of such a ventilation device is shown in FIG. 1, and its operation relationship is shown in FIG.

As shown in FIG. 1 and FIG. 2, the diaphragm 30 which divides the cooking chamber 10 and the electric battle chamber 20 is formed with an opening 32 which communicates with both sides thereof, and a hinge shaft on the diaphragm 30. The opening and closing door 40 rotated by 42 is provided to open and close the opening 32. And the solenoid 50 for generating a pushing force in the closing direction of the opening and closing door 40 and the restoring spring 52 for applying a tensile force in the direction to always open the opening and closing door 40 is installed in the electrical equipment room (20).

When cooking food in the cooking chamber 10 with such a microwave oven, a lot of heat is generated in the high-pressure transformer (not shown) and the magnetron 22, the cooling fan 24 installed in the electrical equipment chamber 20 is driven to the magnetron ( 22) and cool the high voltage transformer.

At this time, if the solenoid 50 does not operate, since the opening and closing door 40 is opened by the tension of the restoring spring 52, the wind generated by the cooling fan 24 in the electric compartment 20 is the opening 32 It is supplied into the cooking chamber 10 through. This wind discharges water vapor generated in the inside of the cooking chamber 10 to the outside through an exhaust duct (not shown) installed on the other side wall of the cooking chamber 10 to spread the front window (not shown) of the cooking chamber 10. prevent.

On the other hand, when the oven function is required to bake confectionery such as bread, the solenoid 50 operates to overcome the tension of the restoring spring 52 and rotate the opening and closing door 40 to close the opening 32. Therefore, the cooking chamber 10 and the electric compartment 20 are closed so that no air flows. At this time, the magnetron 22 and the cooling fan 24 stop operation.

And the oven function is performed by the radiant heat of the heater (not shown) installed in the upper or lower portion of the cooking chamber 10 to cook food in the cooking chamber.

However, since the microwave oven is configured to drive the solenoid 50 to control the ventilation air supplied into the cooking chamber 10, it is complicated and low in productivity, and there is a problem in that power is continuously consumed when the solenoid 50 is operated. .

The present invention has been made to solve the above-mentioned problems, by automatically controlling the ventilator for controlling the movement of air used for the cooling of the machine room and used for the ventilation of the cooking chamber by the moving pressure of the air automatically In order to improve productivity and reduce power consumption, the configuration is simplified.

1 is a schematic perspective view of a general multifunctional microwave oven;

2 is a cross-sectional view of the ventilator shown in FIG.

3 is a schematic perspective view of a microwave oven according to an embodiment of the present invention.

4 is a cross-sectional view of the ventilator shown in FIG.

<Explanation of symbols for main parts of drawing>

110: cooking chamber 120: battlefield

122: magnetron 124: cooling fan

130: plate 132: opening

140: case 142: inlet

144: outlet 150: opening and closing door

152: hinge axis

The present invention for achieving the above object is a cooling fan fixed to one side of the electrical equipment room; A partition plate which divides the electric battle room and the cooking compartment and has an opening for communicating the electric battle chamber and the cooking compartment; A case having an outlet corresponding to the opening at one side thereof, an inlet formed at the bottom thereof, and a case installed in the battlefield; A hinge shaft installed along one side of the inlet; One end is fixed to the hinge shaft is rotatable, closing the inlet by its own weight, the opening and closing door for opening the inlet by the wind pressure of the cooling fan; provides a multi-functional microwave ventilation apparatus comprising a.

The ventilator is opened by opening and closing the door that the cooling air generated from the cooling fan is blocking the inlet, it is supplied to the cooking chamber through the outlet and the opening. In addition, since the cooling fan stops and the flow of cooling air is stopped during the oven cooking function of the microwave oven, the opening / closing door closes the inlet by its own weight so as not to distribute the air into the cooking chamber.

Therefore, the ventilating device of the present invention can open and close the inlet port by the wind power of the cooling air to automatically open and close the inlet, thereby simplifying the configuration required for the ventilation control to improve productivity, and does not require power supply, thereby reducing power consumption. have.

Hereinafter, the preferred embodiment of the present invention as described above to facilitate the implementation of the present invention. FIG. 3 shows a schematic perspective view of the microwave oven according to the present embodiment, and FIG. 4 shows a cross-sectional view of the ventilation device.

As shown in FIGS. 3 and 4, an opening 132 is formed in a diaphragm 130 that divides the cooking chamber 110 and the electrical equipment chamber 120, and a high voltage transformer (not shown) is provided in the electrical equipment chamber 120. ), The magnetron 122 and the cooling fan 124 are installed.

In addition, a case 140 having an outlet 144 corresponding to the opening 132 and an inlet 142 open to the bottom is installed in the electrical equipment room 120, and hinged along the side of the upper side of the inlet 142. The shaft 152 is installed, and the opening and closing door 150 is installed to rotate by the hinge shaft 152 to open and close the inlet 142.

Hereinafter, the vent operation of the microwave oven having the above configuration will be described.

When cooking food in the cooking chamber 110, a large amount of heat is generated in the high-pressure transformer and the magnetron 122, the cooling fan 124 installed in the electric chamber 120 is driven to cool the magnetron 122 and the high-voltage transformer.

At this time, the generated air flows up and opens the opening and closing door 150 blocking the inlet 142, and is supplied to the cooking chamber 110 through the outlet 144 and the opening 132. The wind discharges water vapor generated in the interior of the cooking chamber 110 to the outside through an exhaust duct (not shown) installed on the other wall of the cooking chamber 110 to prevent the cooking window 110 from spreading.

On the other hand, when the oven function is required to bake confectionery such as bread, the cooling fan 124 is stopped and the flow of cooling air is stopped, so the opening and closing door 150 closes the inlet 142 by its own weight and the cooking chamber 110. Does not circulate air into the tank. Therefore, the cooking chamber 110 and the electrical equipment chamber 120 are closed to each other.

And the oven function is performed by the radiant heat of the heater (not shown) installed in the upper or lower portion of the cooking chamber 110 to cook food in the cooking chamber 110.

As described above, the present invention has a discharge port 144 corresponding to the opening 132 formed in the diaphragm 130 separating the electric chamber 120 and the cooking chamber 110 and an inlet 142 open to the bottom. Opening and closing door 150 installed to open and close the inlet 142 by rotating the case 140, the hinge shaft 152 installed on the upper side of the inlet 142, the hinge shaft 152 installed in the electrical equipment room 120, the hinge shaft 152. Ventilation apparatus including a), as the opening and closing door 150 is operated by the wind power of the cooling air to automatically open and close the inlet 142, to simplify the configuration required for the ventilation control to improve productivity, supply of power is required Therefore, the power consumption can be reduced.

The invention has been shown and described with respect to a specific preferred embodiment, but the invention is not limited to the embodiment described above, the field to which the subject innovation belongs without departing from the gist of the subject innovation claimed in the utility model registration claims Anyone of ordinary skill in the art would be able to make various variations.

Claims (1)

A cooling fan 124 fixed to one side of the electric compartment 120; A partition plate 130 which partitions the electric battle chamber 120 and the cooking chamber 110 and has an opening 132 communicating with the electric battle chamber 120 and the cooking chamber 110; A discharge port 144 corresponding to the opening 132 is formed on one surface, an inlet 142 is formed at a bottom thereof, and a case 140 installed in the electrical equipment room 120; A hinge shaft 152 installed along one side of the inlet 142; And An opening and closing door 150 having one end fixed to the hinge shaft 152 and rotatable, closing the inlet 142 by its own weight, and opening the inlet 142 by the wind pressure of the cooling fan 124; Ventilation apparatus of a multifunctional microwave, characterized in that it comprises a.