KR200165765Y1 - Apparatus for preventing leak of high frequency of microwave oven - Google Patents

Abstract

The present invention relates to a high frequency leakage prevention device of a microwave oven, characterized in that the shielding portion is formed on one side of the partition wall and the front plate, and the shield part partitioning and extinguishing attenuating and extinguishing by causing a diffuse reflection collision hitting the high frequency continuously. As formed on one side of the plate, even when the door member and the front plate are not in close contact with each other and the separation increases, the high frequency may be eliminated.

Description

Microwave Leakage Prevention Device

The present invention relates to a microwave oven for heating and cooking food by high frequency, and more particularly, to a high frequency leakage preventing device of a microwave oven preventing the high frequency from leaking.

A conventional microwave oven has a partition wall 20 partitioning the cooking chamber 10 as shown in FIG. 1, and a front plate 30 is disposed on the front side of the partition wall 20, and the front plate 30 is provided. One side of the door member 40 for opening and closing the cooking chamber 10 is disposed, one side of the door member 40 in contact with the front plate 30 is a high frequency introduced into the inside of the cooking chamber 10 The shield part 41 which prevents leakage to the exterior is formed.

The shielding part 41 prevents the high frequency from leaking and closes the contact part 42 formed to be in close contact with one side of the front plate 30 and the high frequency leaked without being shielded by the contact part 42. The drawing portion 43 formed to be convex outward so as to be in contact with one side of the front plate 30, the first bent portion 44 bent at one end of the drawing portion 43, and the front plate 30. The second bent portion 45 is formed at one end of the first bent portion 44 to be perpendicular to the plane.

In the conventional microwave oven configured as described above, when a high frequency oscillated from a magnetron (not shown) is supplied into the cooking chamber 10 to heat and cook food, the high frequency of the door member 40 is in close contact with one side of the front plate 30. When shielded by the contact part 42 and not shielded by the contact part 42 and the high frequency leaks, the drawing part 43 flows into the drawing part 43 formed in the door member 40 and at the same time, the drawing part 43 By attenuating and extinguishing by the collision of the diffuse reflection which hits the inner surface of the inner side and the inner surface of the 1st bending part 44 and the 2nd bending part 45 continuously, it prevents a high frequency leakage.

However, in the conventional microwave oven configured as described above, when the shielding portion 41 is formed in the door member 40 and the separation between the front plate 30 and the door member 40 increases, high frequency may leak outside the reference value. There was a problem with possession.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is to provide a high-frequency leakage prevention apparatus of a microwave oven to improve the shielding efficiency by improving the position of the shield to shield the leakage of high frequency There is.

1 is a partial perspective view schematically showing the configuration of a high frequency leakage preventing device of a conventional microwave oven.

Figure 2 is an overall plan view showing a state equipped with a high-frequency leakage prevention device of a microwave oven according to an embodiment of the present invention.

FIG. 3 is an enlarged view showing the display portion A of FIG. 2 enlarged. FIG.

4 is a perspective view schematically illustrating a main part of a high frequency leakage preventing apparatus of a microwave oven according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: cooking chamber 100: shield

110: partition 111, 112: first and second bent portion

120: front panel 121: bending part

130: injection molding a, b, c, d: inner side length of the shield

L: distance of bending part and first bending part

According to the high frequency leakage prevention apparatus of the microwave oven according to the present invention made to achieve the above object, a partition wall partitioning the cooking chamber to heat food by high frequency, a front plate covering the front side of the partition wall, and the high frequency In the microwave oven provided with a shield to prevent the high frequency leakage by attenuating and attenuated by the diffuse reflection impingement continuously hits the inner surface during the leakage, the shielding portion is characterized in that formed between the partition wall and the front plate.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 2 to 4.

As shown in FIGS. 2 to 4, there is a main body 1 forming an appearance, and a partition wall 110 partitioning the cooking chamber 10 is disposed inside the main body 1, and the partition wall 110 is disposed. On the front side of the front plate 120 is disposed to cover the front side of the cooking chamber 10, one side of the front plate 120 is a door member 40 for closing the cooking chamber 10 when cooking food. Shield is provided to attenuate and attenuate the leakage high frequency by the diffuse reflection collision along the inner side as the high frequency leaks into the inner side when the high frequency is leaked to one side of the partition 110 and the front plate 120. 100 is formed, and the injection part 130 made of a non-conductive material is interpolated inside the shielding part 100 to prevent foreign substances from entering.

The shielding part 100 is formed to be bent vertically inward on the surface of the front plate 120 and extends on one surface of the front plate 120 to the outside on the surface of the partition wall 110. The first and second bent portions 111 and 112 are formed vertically and horizontally.

The inner circumference a + b + c + d of the shield 100 is γ / 2 (γ = 122.4 mm), and the length L of a gap of the portion where the injection molded product 130 is located. Is within 5 mm so that the high frequency introduced into the shield 100 is offset.

Next will be described the operation of the high frequency dispersion device of the microwave oven according to an embodiment of the present invention.

First, after the food is placed inside the cooking chamber 10, when the door member 40 is closed and the heating condition of the food is selected, a magnetron (not shown) is oscillated to generate a high frequency and flow into the cooking chamber 10. By penetrating and absorbing the food, the food is heated and cooked. In this case, when the door member 40 is not completely shielded and high frequency is leaked, the high frequency is introduced into the shielding part 100 formed between the front plate 110 and the partition wall 110 so that the shielding part ( The attenuated and attenuated by the diffuse reflection collision on the inner surface of the 100 to prevent the high-frequency leakage, and the injection-molded product 130 prevents the inflow of foreign matter into the shield 100.

In the above description, the injection molded body 130 is disposed to be in contact with the partition wall 110 side as an example, but may be disposed to be in contact with the front plate 120 side.

As described above, according to the microwave high frequency leakage preventing device according to the present invention, the door member and the front plate are formed by forming a shielding portion on one side of the partition wall and the front plate which causes a high frequency inflow and attenuates and dissipates the diffuse reflection layer stones which are continuously hit. Even if the separation is not close enough to increase the separation, the possibility of high frequency leakage to the outside can be eliminated.

Claims (5)

(Correction) Attenuation and extinction are caused by a partition wall partitioning the cooking compartment to heat and cook food by high frequency, a front plate covering the front side of the partition wall, and a diffuse reflection collision that continuously hits the inner surface during leakage of the high frequency wave. In a microwave oven having a shield to prevent leakage, the shield is a bending portion formed at one end of the front plate vertically inward from the surface of the front plate, and on the surface of the partition wall to form a space portion with the bending portion A first and second bent portion formed to be bent outward from the, the high-frequency leakage preventing device of the microwave, characterized in that the space portion is opened into the cooking chamber. (Correction) The microwave leakage preventing device according to claim 1, wherein the shielding portion has an inner periphery (a + b + c + d) of γ / 2. 3. The microwave leakage preventing device of claim 2, wherein a distance L of the bending part and the first bent part is formed to be smaller than 5 mm so as to cancel high frequency introduced into the shielding part. (Correction) The microwave leakage preventing device according to claim 1, wherein an injection-molded product is provided inside the shield to prevent foreign substances from entering. The microwave leakage preventing apparatus of claim 4, wherein the injection molded product is made of a non-conductive material.