KR0170875B1 - Dispersion device of microwave oven - Google Patents

Abstract

The present invention relates to a high frequency dispersion apparatus in a microwave oven capable of distributing electromagnetic waves evenly in a cooking chamber. In the microwave dispersing apparatus of the present invention, in the microwave oven for introducing the electromagnetic wave generated through the electromagnetic wave inlet 54 formed in place of the side wall of the cooking chamber 60 into the interior of the cooking chamber 60, the side wall of the cooking chamber 60. The waveguide 51 is formed to communicate with the electromagnetic wave inlet 54 and guides the generated electromagnetic wave to the cooking chamber 60, and a plurality of waveguides 51 and 511 are provided on the sidewalls of the air inlet and the air outlet, respectively. It is installed in contact with the electromagnetic wave inlet 54 in the waveguide 51, and provided with an electromagnetic wave dispersing means 52 to rotate by the air introduced through the air inlet hole 515 to disperse electromagnetic waves It features.

Description

Microwave Disperser

1A and 1B are sectional front and right side views of a microwave oven for explaining a high frequency dispersion method in a conventional turntable microwave oven.

2A and 2B are front and right side views of a microwave oven for explaining a high frequency dispersion method in a conventional microwave oven of a stirrer pan method.

3a and 3b are front and right side views of a microwave oven for explaining the high frequency dispersion device of the present invention.

4A to 4C are front, right and rear views, respectively, of the waveguide of the present invention.

5 is a view for explaining the mounting structure of the stirrer fan of the present invention.

* Explanation of symbols for main parts of the drawings

51: waveguide 52: stirrer pan

53: magnetron 54: electromagnetic wave inlet

55: inlet cover 56: turntable motor

57: support roller 58: ten table

59: dish hanger 60: cooking chamber

61: blowing means 62: air guide

63: auxiliary plate 511: outlet

514: mounting hole 515: inlet

521: fixed ring 522: stirrer fixed shaft

523: support shaft guide hole 524: support shaft

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high frequency dispersion apparatus of a microwave oven, and more particularly, to a high frequency dispersion apparatus for a microwave oven capable of distributing generated electromagnetic waves evenly in a cooking chamber.

As it is well opened, a microwave oven is a device for heating and cooking food by frictional heat generated in the process of vibrating water molecules contained in the food by high frequency electromagnetic waves.

(A) and (b) of FIG. 1 are sectional front and right side views of the microwave oven for demonstrating the high frequency dispersion method in the conventional turntable type microwave oven. As shown in FIG. 1, in a conventional turntable type microwave oven, a waveguide 11 is mounted on the right side of the cooking chamber 18, and the magnetron 12 generating high-frequency electromagnetic energy is provided in the waveguide 11. Is mounted. On the right side wall of the cooking chamber 18 located below the waveguide 11, an electromagnetic inlet 13 is formed to introduce generated electromagnetic energy into the cooking chamber 18. An inlet cover 14 is provided on the electromagnetic inlet 13. Is covered. The turntable 17, the turntable support roller 16, and the driving motor 15 for rotating the food to be cooked on the lower part of the cooking chamber 18 are mounted. On the other hand, the right side of the waveguide 11 is provided with a blowing means 19 for forcibly discharging the steam present in the cooking chamber 18 in addition to cooling the heat generating parts.

In the conventional microwave oven having the above-described configuration, the electromagnetic waves generated in the magnetron 18 are introduced into the cooking chamber 12 via the waveguide 11 and the waveguide inlet 13 and reflected from the cooking chamber wall or directly in the food. Will be reached. In the microwave oven having the above-described structure, since a separate high frequency dispersion device is not provided, high frequency concentration may occur. For this reason, the food is caused by the concentration of electromagnetic waves by forcibly rotating the food by the turntable 17. To prevent uneven heating.

(A) and (b) of FIG. 2 are a front sectional view and a right side view of the microwave oven for explaining the high frequency dispersion method in the conventional stirrer pan type microwave oven. As shown in FIG. 2, in the microwave oven of the conventional stirrer pan system, the waveguide 31 is mounted on the upper wall of the cooking chamber 36 from right to left. In addition, a portion of the upper portion of the cooking chamber 36 is partitioned by the stirrer cover 33. A stirrer for dispersing electromagnetic waves generated by the magnetron 35 and introduced into the cooking chamber 36 is spaced in the partitioned space. A fan; 32 is rotatably mounted. The rotation of the stirrer fan 32 is performed by introducing a part of the wind generated by the blowing means 40 into the partitioned space through the air inlet 41. In such a stirrer type microwave oven, the phenomenon of concentration of electromagnetic waves often occurs in spite of the dispersion of the electromagnetic waves by the stirrer fan 32. In order to alleviate this, a product example employing the turntable method shown in FIG. have.

On the other hand, in recent years, in order to improve the cooking performance has been actively proposed a composite microwave oven equipped with a variety of heating functions, in this case, when using a separate support mechanism to heat food in the middle of the cooking chamber In addition, in some cases, food is loaded in two stages on the turntable and the support mechanism and heated.

However, in the conventional turntable type microwave oven having the above-described structure, when the food is heated in the middle of the cooking chamber, the food is not rotated, so that the electromagnetic waves are concentrated, and the food is unevenly heated. There was a problem.

Furthermore, in the conventional stirrer pan type microwave oven, since the stirrer pan is partially mounted in the cooking compartment, the available cooking compartment space is reduced, and the problem of uneven heating becomes worse when the food is loaded in two stages. There was this.

The present invention has been made in order to solve the above-mentioned problems, by placing the waveguide on the right side of the cooking chamber to fix the stirrer rotated by the blowing means therein to improve the space utilization efficiency of the cooking chamber, furthermore food 2 It is an object of the present invention to provide a high-frequency dispersion device of a microwave oven capable of performing uniform heating at all times regardless of various food arrangements such as a single loading state.

In the microwave oven of the present invention for achieving the above object, in the microwave oven for introducing the electromagnetic wave generated through the electromagnetic inlet formed in place of the side wall of the cooking chamber into the interior of the cooking chamber, the electromagnetic wave on the side wall of the cooking chamber The electromagnetic wave generated and installed to communicate with the inlet port is guided to the cooking chamber, and the sidewall is installed adjacent to the electromagnetic wave inlet in the waveguide and the waveguide having a plurality of air inlet and air outlet pores, respectively, and the air inlet hole It characterized by having an electromagnetic wave dispersion means for dispersing electromagnetic waves by rotating by the air introduced through the.

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

(A) and (b) of FIG. 3 are a front sectional view and a right side view of a microwave oven for explaining the high frequency dispersion device of the present invention, and (a) to (c) of FIG. 4 are front views of the waveguide of the present invention, respectively. Is a right side view and a rear view, and FIG. 5 is a view for explaining a mounting structure of the stirrer pan of the present invention.

As shown in FIG. 3, in the microwave oven employing the high frequency dispersion apparatus of the present invention, the waveguide 51 is mounted on the right side of the cooking chamber 60, and the waveguide 51 generates a magnetron for generating high frequency electromagnetic energy. 53 is mounted. An electromagnetic inlet 54 is formed on the right side wall of the cooking chamber 60 positioned below the waveguide 51 to introduce generated electromagnetic energy into the cooking chamber 60. An inlet cover 55 is provided on the electromagnetic inlet 54. Is covered. In the lower portion of the cooking chamber 60, a turntable 58, a turntable support roller 57, and a driving motor 56 for rotating the food to be cooked are mounted. On the other hand, the right side of the waveguide 51 is provided with a blowing means 61 for forcibly discharging the steam present in the cooking chamber 60 in addition to cooling the heat generating parts. Inside the waveguide 51, the strut pan 52 is rotatably mounted adjacent to the electromagnetic wave inlet 54. In more detail, as shown in FIG. 5, a mounting hole 514 is formed in the front wall of the waveguide 51 to rotate one end of the support shaft 524 that supports the stirrer pan 52. Support. On the other hand, the stirrer fan 52 has a plurality of wings, the center is provided with a stirrer fixed shaft 522 is formed with a support shaft guide hole 523 for guiding the support shaft 524. The other end of the support shaft 524 is fixed by the fixing ring 521 which is partially cut in the state where the stirrer pan 52 is fitted, thereby preventing the stirrer pan 52 from being separated.

On the other hand, as shown in (c) of FIG. 5, the right wall of the waveguide 51 has a plurality of small holes 515 having a diameter such that electromagnetic waves cannot leak, and the plurality of small holes 515 It is formed at a position that can introduce a certain amount of wind generated by the blowing means (61). As shown in FIG. 5 (a), a plurality of small holes 511 are formed in the left wall of the waveguide 51 so as to prevent the leakage of electromagnetic waves. The air rotated by 52 is discharged. In FIG. 3, reference numeral 63 denotes an auxiliary plate for two-stage loading of food in the space in the cooking chamber 60, 631 denotes an auxiliary plate hanger groove, and 59 denotes a plate on which the auxiliary plate hanger groove 631 spans. The hook hook 59 is shown.

Hereinafter, the operation of the high frequency dispersion apparatus of the microwave oven according to the present invention will be described in detail.

First, when a user selects a desired cooking function by operating a function key provided in the key control unit and presses the aperture stop, the magnetron 53 starts oscillation to generate high frequency electromagnetic waves. At the same time, the air blower 61 operates to cool the heat generating parts including the magnetron 53, and at the same time, some of the air flows through the air guide 62 and enters the inside of the cooking chamber 60. The steam is forced out. On the other hand, the wind generated by the blowing means 61 is introduced into the waveguide 51 through the air inlet hole 515 to rotate the stirrer fan 52, the electromagnetic waves generated in the magnetron 53 is the stirrer fan Evenly distributed by the 52 is introduced into the cooking chamber 60. The electromagnetic waves dispersed in the cooking chamber 60 are reflected and redistributed by the turntable 58 or the wall of the cooking chamber 60, and the electromagnetic waves flowing back into the waveguide 51 are dispersed again by the stirrer pan 52. And flows back into the cooking chamber 60. In this way, while the cooking is being performed, the electromagnetic waves are evenly distributed inside the cooking chamber 60, so that the uniform heating performance of the food is greatly improved. Furthermore, even when the food is heated in a state in which the food is stacked in two stages by using the auxiliary dish 63, the high frequency can be evenly distributed, so that the uniform heating performance is significantly improved as compared with the related art.

Meanwhile, according to the present invention, since the high frequency dispersion means called the stirrer pan 52 is provided in addition to the turntable 58, the food can be heated using a dish which cannot be rotated. In this case, the key operation unit must be separately provided with a key for stopping the driving of the turntable.

According to the high frequency dispersion apparatus of the microwave oven of the present invention as described above, since the stirrer pan is installed inside the waveguide mounted on the side wall of the cooking chamber, the installation space maximizes the use space of the cooking chamber and evenly distributes the electromagnetic waves to the cooking chamber. Since the inflow, the uniform heating performance is significantly improved.

Claims (3)

In the microwave oven for introducing the electromagnetic waves generated through the electromagnetic inlet 54 formed in place of the side wall of the cooking chamber 60 into the cooking chamber 60, the electromagnetic inlet 54 and the side wall of the cooking chamber 60. The electromagnetic wave generated to be communicated with each other is guided to the cooking chamber 60, and the sidewalls of the waveguide 51 and the waveguide 51 are provided with a plurality of air inlet and air outlet holes 515 and 511, respectively. It is installed adjacent to the electromagnetic wave inlet 54, the high frequency of the microwave, characterized in that the electromagnetic wave dispersion means 52 for rotating by the air introduced through the air inlet hole 515 to disperse electromagnetic waves Disperser. 2. The high frequency dispersion apparatus according to claim 1, further comprising rotating means (58) rotating at the bottom of the cooking chamber (60) with food. According to claim 1, Blowing means 61 is further provided on the side of the waveguide 60 to cool the various thermal radiation components of the microwave oven, the electromagnetic wave dispersion means 52 is generated in the blowing means 61 High frequency dispersion device of a microwave oven, characterized in that the wind is introduced into the small air inlet 515 for rotation.