KR20000006064U - Microwave - Google Patents

Abstract

The present invention relates to a microwave oven, the microwave oven of the present invention forms an appearance, the cooking chamber is formed on the upper side, the electric chamber is formed on the lower side, the high-pressure transformer, adjacent to the bottom plate outer surface of the cooking chamber applied from the high-pressure transformer It is provided with a magnetron for oscillating high frequency at high pressure, the bottom plate of the cooking chamber is provided with a vibration damping unit to reduce the vibration of the bottom plate by the electromagnetic force generated in the high-pressure transformer. The damping groove, which is a vibration damping part formed on the bottom plate of the microwave oven according to the present invention, can attenuate the vibration of the bottom plate of the cooking chamber with the electromagnetic force applied from the high pressure transformer to the minimum, thereby reducing the vibration noise at this time, thereby improving user satisfaction. It is possible to reduce the durability by vibration and to minimize the effect.

Description

Microwave

The present invention relates to a microwave oven, and more particularly, a microwave oven having improved structure of the cooking chamber to reduce vibration noise of the cooking chamber by reducing the shaking of the cooking chamber by the magnetic field generated from the high-pressure transformer installed inside the electrical equipment room. It relates to a cooking chamber.

In general, a microwave oven is a cooking utensil for cooking food by molecular motion of food molecules by scanning a high frequency of 2,450MHz into the cooking chamber.

In such a microwave oven, there is a microwave oven of a so-called Monitor look type in which an electric chamber is located at the bottom of the cooking chamber and the upper and lower widths are longer than the left and right widths.

In the conventional monitor look type microwave oven, as shown in FIG. 4, the cooking chamber 11 is provided above the main body 10 forming an external appearance, and the electrical equipment chamber 12 is provided below the cooking chamber 11.

In the cooking chamber 11, food is placed and cooked therein, and a cooking plate 14 capable of entering into and out of the cooking chamber 11 is installed, and the bottom plate 11a of the cooking chamber 11 is mounted to set the cooking plate 14. The mounting groove 11b is formed in the groove.

In addition, the front surface of the cooking chamber 11 is opened so that food can be fed in and out, and the door 13 is hingedly coupled to one side of the main body 10.

In addition, the electrical equipment 12 such as a magnetron, a high voltage transformer 17, and a high voltage capacitor 16 is installed in the electrical equipment chamber 12 under the cooking chamber 14.

In addition, a heat dissipation fan 19 for cooling the electrical equipment is installed on the rear wall of the electric chamber 12, and a plurality of suction ports are formed in the installation portion of the heat dissipation fan 19.

In addition, a control unit 20 for external operation of the microwave oven is provided at the front of the battlefield room 12, and a bottom plate 18 is installed at the bottom of the battlefield room 12.

In the conventional monitor look type microwave oven, since the high pressure transformer 17 is installed in the lower part of the cooking chamber 11, it is generated in the primary coil and the secondary coil of the high voltage transformer 17 during the operation of the microwave oven. A considerable magnitude of electromagnetic force extends to the bottom plate 11a of the cooking chamber 11.

Therefore, the vibration caused by the electromagnetic force in the bottom plate (11a) of the cooking chamber 11, causing the noise caused by this, there was a problem that gives a significant discomfort to the user.

The present invention is to solve the above problems, an object of the present invention is to attenuate the shaking of the bottom of the cooking chamber when the electromagnetic force generated in the high-pressure transformer to the bottom of the cooking chamber to minimize the vibration noise generated accordingly It is to provide a microwave oven.

1 is an exploded perspective view of a microwave oven according to the present invention.

2 is a side cross-sectional view of the microwave oven according to the present invention.

Figure 3 is a rear perspective view showing the cooking chamber outer bottom portion of the microwave oven according to the present invention.

4 is a side sectional view of a conventional microwave oven.

* Description of the symbols for the main parts of the drawings *

100 ... body 110 ... cooking room

110a ... bottom 110c ... attenuation groove

120. battlefield 130 ... door

140 ... cooking plate 150 ... magnetron

160 High Voltage Capacitors 170 High Voltage Transformers

180 ... bottom plate 190 ... heat sink

200 control section 210 waveguide

In order to achieve the above object, the present invention forms an appearance and a cooking chamber is formed on the upper side and an electric chamber is formed on the lower side, a high pressure transformer installed adjacent to an outer surface of the bottom plate of the cooking chamber, and a high pressure applied from the high pressure transformer. In a microwave oven having a magnetron for oscillating a high frequency, the bottom plate of the cooking chamber is characterized in that the vibration damping unit is provided to reduce the vibration of the bottom plate by the electromagnetic force generated in the high-voltage transformer.

The vibration damping unit may include a plurality of damping grooves formed by recessing toward the cooking chamber side.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the drawings.

1 is an exploded perspective view of a microwave oven according to the present invention, Figure 2 is a side cross-sectional view of the microwave oven according to the present invention. And Figure 3 is a rear perspective view showing a bottom portion of the cooking chamber of the microwave oven according to the present invention.

As shown in FIG. 1, the monitor look type microwave oven according to the present invention has a cooking chamber 120 formed on an upper side of the main body 100 forming an appearance, and an electrical equipment chamber 130 is formed below the cooking chamber 120. .

A cover (not shown) covering the upper side and both side walls of the main body 100 is provided, and a bottom plate 180 covering the bottom is provided at the bottom.

And the door 130 hinged to one side of the main body 100 is installed to open and close the opening formed in the front of the cooking chamber 110, the food is seated and cooked on the upper side of the bottom plate (110a) inside the cooking chamber 110. In addition, a cooking plate 140 capable of entering and exiting into the cooking chamber 110 is installed.

And the bottom plate (110a) is provided with a mounting recess (110b) recessed downward for mounting of the cooking dish (140).

In addition, a control unit 200 for operating and controlling the operation of the microwave oven is installed below the door 130.

The electrical equipment chamber 120 is provided with a high voltage transformer 170 for boosting a high voltage applied from the outside, and includes a high voltage capacitor 160 connected to the secondary coil of the high voltage transformer 170. The magnetron 150 is connected to the output terminal of the 160.

And the waveguide 210 for guiding the high frequency to the cooking chamber 110 is installed in the antenna of the magnetron 150. A heat dissipation fan 190 for cooling each electric component is installed at the rear of the electric compartment 120, and a plurality of heat dissipation fans 190 are installed at the installation portion of the heat dissipation fan 190 to guide external air into the electric compartment 120. A suction port (unsigned) is formed. (See Fig. 2)

On the other hand, the high pressure transformer 170 is installed adjacent to the bottom plate 110a of the cooking chamber 110, the high pressure trough on a part of the surface facing the high pressure transformer 170 of the bottom plate (110a) of the cooking chamber 110. When the base plate 110a vibrates by the electromagnetic force generated by the lancer 170, a damping unit is provided to attenuate the vibration.

As shown in FIG. 3, the damping part is provided with two damping grooves 110c which are elongated and recessed to the upper side of the base plate 110a.

The damping groove (110c) is the vibration of the bottom plate (110a) to cancel the overall vibration of the bottom plate (110a) when the electromagnetic force by the high-pressure transformer 170 to the bottom plate (110a) to cancel the shock It will be reduced to a minimum.

And the damping groove (110c) is preferably formed to have a width (W) of about 3mm toward the cooking chamber 110 side.

Hereinafter, the operation of the microwave oven of the present invention configured as described above will be described.

In the operation of the microwave oven according to the present invention, as the external commercial voltage is applied, the high voltage transformer 170 boosts the commercial voltage to high voltage.

The boosted high pressure is applied to the magnetron 150 while passing through the high pressure capacitor 160, and the high frequency magnetron 150 scans the high frequency of 2,450 MHz into the waveguide 210 at the supplied high pressure.

Subsequently, the high frequency wave scanned by the waveguide 210 is injected into the food seated in the cooking dish 140 for cooking inside the cooking chamber 120 via the waveguide 210, and thus the food is cooked by the vibration of the food molecule. Become

On the other hand, in the high voltage transformer 170, the applied commercial voltage is boosted to high pressure through the primary coil and the secondary coil, and at this time, electromagnetic force is generated by distribution of current in each coil. This electromagnetic force affects the bottom plate 110a of the upper cooking chamber 110.

However, the vibration of the base plate 110a due to the electromagnetic force at this time is to cancel the vibration force by a plurality of damping groove (110c).

Therefore, the damping groove (110c) is the vibration force of the electromagnetic force to the entire base plate (110a) to reduce the tremor of the base plate (110a) as a whole as a minimum, thereby minimizing the vibration noise of the base plate (110a) due to vibration Can be reduced.

The damping groove formed on the bottom plate of the microwave oven according to the present invention as described above can be attenuated to minimize the vibration of the bottom plate of the cooking chamber by the electromagnetic force applied from the high-pressure transformer, thereby reducing the vibration noise at this time to improve the user satisfaction It is also possible to reduce the degradation of durability due to vibration to a minimum.

Claims (2)

A microwave oven having a main body having an cooking chamber formed on the upper side and having an electric chamber formed on the lower side thereof, a high pressure transformer installed adjacent to the outer surface of the bottom plate of the cooking chamber, and a magnetron for oscillating high frequency at a high pressure applied from the high pressure transformer. To The bottom plate of the cooking chamber is characterized in that the vibration damping unit is provided to reduce the vibration of the bottom plate by the electromagnetic force generated in the high-pressure transformer. The microwave oven according to claim 1, wherein the vibration damping unit includes a plurality of damping grooves formed by recessing toward the cooking chamber side.