KR0183358B1 - Cooking chamber capacity variable apparatus for high-frequency dispersion of microwave oven - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cooking chamber variable device for high frequency dispersion of a microwave oven, wherein a high frequency is dispersed by a tray or a stirrer fan in a cooking cavity, There is a limitation in the reflection range thereof, which has limitations in improving the cooking efficiency of the food.

Accordingly, the present invention is directed to a motor comprising: a forward / reverse rotation motor having a threaded rotary shaft; A high-frequency dispersion cooking chamber volume variable plate which is fitted in the rotary shaft and performs a circulation movement by forward / reverse rotation of the rotary shaft; The cooking chamber volume changing device for high frequency dispersion is constituted by a leaf spring which is compressed / restored by the circulating motion of the cooking chamber volume changing plate, thereby changing the reflection range of the high frequency every moment to improve the cooking efficiency of the food.

Description

Variable volume of cooking chamber for microwave dispersion of microwave oven

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a technical schematic diagram of a cooking chamber volume adjusting device according to the present invention; FIG.

FIG. 2 is an operational state diagram of the cooking chamber volume adjusting device according to the present invention; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10: forward / reverse rotation motor 11: rotary shaft

20: plate spring 30: variable volume of cooking compartment

40: stopper 51: drawing part

The present invention relates to a high frequency dispersion of a microwave oven, and more particularly, to a microwave oven capable of varying the volume of a cooking chamber instantaneously and varying the reflection range of high frequency waves reflected on the surface of the cooking chamber instantaneously, The present invention relates to a cooking chamber variable device for high frequency dispersion.

In general, a microwave oven is provided with a tray rotated by a motor on the bottom of a cooking chamber, and a waveguide as a high-frequency flow path is provided on a side plate of the cavity in an electric room, a magnetron for generating a high frequency is installed in the waveguide, A high-voltage transformer that applies a high voltage to the magnetron is installed on the bottom plate.

A blowing fan for cooling the heat generated from the magnetron and the high-pressure transformer is installed on the back plate.

When a high voltage transformer of the microwave oven configured as described above applies a high voltage generated by the mutual inducting action of the coil to the magnetron, a high frequency is generated in the magnetron, and then a high frequency is irradiated to the cooking chamber through the wave guide to cook food placed on the tray do.

The microwave oven uses a high frequency dispersion method using a tray or a high frequency dispersion method using a stirrer fan in order to appropriately irradiate food and beverages with high frequency to improve cooking efficiency.

That is, the high-frequency dispersion method using a tray is an indirect dispersion in which a tray on which food is placed is rotated by a motor to uniformly irradiate high frequency waves on the entire food. In the high frequency dispersion method using stirrup fans, Is a direct dispersion in which high frequency is dispersed and irradiated to the cooking chamber to uniformly irradiate the food.

As a method of dispersing the high frequency by the tray or the stirrer fan, a high-frequency dispersing method is performed in a rectangular cooking chamber having a constant volume. The high frequency introduced into the cooking chamber is reflected on the cooking surface of the cooking chamber and irradiated onto the food.

However, since the volume of the cooking chamber is constant even though the volume of the high frequency is dispersed in a tray or a stirrer pan in a fixed cooking chamber, the reflection range of the high frequency reflected from the cooking chamber surface is limited, there was.

Therefore, it is an object of the present invention to improve the cooking efficiency of the food by increasing the dispersion ratio of the high frequency by changing the reflection range of the high frequency reflected by the change in the volume of the cooking chamber by varying the volume of the cooking chamber, And it is an object of the present invention to provide a variable cooking cavity volume adjusting apparatus.

SUMMARY OF THE INVENTION The object of the present invention is to provide a forward / reverse rotation motor having a rotation axis formed with a thread; A variable volume plate for a cooking chamber which is inserted in the rotary shaft and performs a circulating motion by forward / reverse rotation of the rotary shaft; And a cooking chamber volume variable device for high frequency dispersion is constituted by a plate spring which is compressed / restored by the circulating motion of the cooking chamber volume variable plate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a technical drawing of a cooking chamber volume adjusting apparatus according to the present invention, and FIG. 2 is an operational state diagram of the cooking chamber volume adjusting apparatus.

As shown therein, the present invention includes a forward / reverse rotation motor 10 having a threaded rotary shaft 11; A variable volume cooking chamber 30 for high frequency distribution for circulating by a forward / reverse rotation of the rotary shaft 11 and prevented from being separated from the rotary shaft 11 by a stopper 40; And a plate spring 20 which is compressed / restored by the circulating motion of the cooking chamber volume changing plate 30 is installed on the cooking chamber upper plate 50. [

A drawing unit 51 is formed on the upper plate 50 of the cooking chamber and a rotary shaft 11 is mounted on the surface of the upper part of the drawing unit 51, A forward / reverse rotation motor 10 is provided so as to protrude into the cooking chamber 60 and is provided on the rotary shaft 11 on which the leaf spring 20 is inserted and is lifted and lowered in the groove 51a of the drawing portion 51, A stopper 40 is provided at the edge of the drawing part 51 so that the volume variable plate 30 is not separated from the rotary shaft 11. [

The high-frequency dispersion cooking chamber volume variable plate 30 fitted to the rotary shaft 11 varies the volume of the cooking chamber 60 while repeating the movement of the forward / reverse rotation of the forward / reverse rotation motor 10 .

Here, the leaf spring 20 is controlled such that the cooking cavity volume variable plate 30 changes from rising to falling and the stopper 40 is changed from the falling cooking chamber to the rising cooking chamber volume changing plate 30, The forward / reverse rotation motor 10 is further rotated by the resistance of the leaf spring 20 and the stirrer 40 so that the forward / reverse rotation motor 10 is rotated forward and backward by the resistance of the leaf spring 20 and the stirrer 40, If it is impossible to rotate, it will rotate in the reverse direction and forward.

As described above, in the present invention, the inner volume of the cooking chamber (60) is changed to the cooking chamber volume variable plate (30) to vary the reflection range of the high frequency. When the microwave oven is operated, a high frequency is oscillated, The volume variable plate 30 in which the rotary shaft 11 is inserted is gradually raised along the thread by rotating the rotary shaft 11 of the forward / reverse rotation motor 10 in a forward direction, so that the variable volume plate 30 The cooking chamber volume variable plate 30 can no longer be lifted up to reach the compression limit of the leaf spring 20 and the forward / reverse motor 10 receives resistance, The cooking chamber volume variable plate 30 is lowered.

When the cooking chamber volume adjusting plate 30 is lowered and reaches the straw 40, the cooking chamber volume changing plate 30 can not be lowered any further, and when the forward / reverse rotation motor 10 receives resistance, the cooking chamber volume changing plate 30 is raised do.

In this way, the volume of the cooking chamber 60 is varied at various angles as the cooking chamber volume variable plate 30 repeats its lifting and lowering at every moment. As shown in FIG. 2, the cooking chamber volume variable plate 30 The reflection range of the high frequency reflected by the collision also changes at every moment, so that the dispersion of the high frequency is more efficiently performed.

As described above, according to the present invention, as the variable range of the high frequency is varied, the dispersing ratio of the high frequency is improved more than that of the tray method or the stirrup pan method in which the reflection range of the high frequency for dispersing the high frequency is constant in the cooking chamber having a constant volume, Is improved by that much.

Claims (2)

A forward / reverse rotation motor (10) having a threaded rotary shaft (11); A variable volume cooking chamber 30 for high frequency distribution for circulating by a forward / reverse rotation of the rotary shaft 11 and prevented from being separated from the rotary shaft 11 by a stopper 40; And a leaf spring (20) compressed / restored by the circulating motion of the cooking chamber volume variable plate (30). The cooking apparatus according to claim 1, wherein the high frequency dispersing volume variable device is provided on a cooking chamber upper plate (50), a drawing portion (51) is formed on the cooking chamber upper plate (50) A forward / reverse rotation motor 10 is installed in the rotary shaft 11 so that the rotary shaft 11 protrudes into the cooking chamber 60 and the rotary shaft 11 is fitted in the groove 51a Wherein a stopper (40) is provided on the edge of the drawing part (51) so as to prevent the cooking chamber volume changing plate (30) moving upward and downward from the rotary shaft (11) Volumetric variable device.