KR101203871B1 - Apparatus for cooking - Google Patents

Abstract

It is an object of the present invention to provide a cooking apparatus which can more effectively shield electromagnetic waves leaking between a door and a main body while maintaining the ease of cleaning of the cooking appliance.

Cooking device according to the present invention for achieving the above object, the main body having a microwave generating device; A cooking chamber provided inside the main body, in which cooking objects are accommodated and cooked by microwaves; A front part provided at an inlet side of the cooking chamber to form a front surface of the main body; At least one filter provided on the front side of the front part to prevent the microwave of the cooking chamber from leaking to the outside; And a door including a projection conductor member formed inside of the transparent material by selectively opening and closing the entrance of the cooking chamber by selectively adjoining the filter.

Description

Cooking device {APPARATUS FOR COOKING}

1 is a perspective view showing the overall appearance of a conventional cooking apparatus using microwaves.

FIG. 2 is an enlarged side cross-sectional view of the II cut surface of the cooking apparatus shown in FIG. 1. FIG.

3 is an exploded perspective view illustrating a disassembled door part of a conventional cooking apparatus.

Figure 4 is an enlarged side cross-sectional view of the main body and the door-side cross section of the cooking apparatus according to the present invention.

5 is an enlarged perspective view of the main body and the door side of the cooking apparatus according to the present invention.

6 is a side sectional view showing another embodiment of the cooking apparatus according to the present invention.

<Brief description of symbols used in the drawings>

100: main body 110: front

120: sealing member 131: cooking chamber

141: first filter 142: second filter

200: door 210: door panel

220: projection conductor member 230: transparent member

The present invention relates to a cooking apparatus, and more particularly, to a cooking apparatus for further improving the electromagnetic shielding performance of a cooking apparatus for performing cooking using microwaves.

In general, a cooking device for cooking a cook by generating a microwave is a device for heating the cook by heating the microwave by emitting a microwave into the cooking chamber with the microwave oven, a device for generating a microwave called a magnetron inside.

One example of such a conventional cooking apparatus is illustrated in FIGS. 1 to 3.

1 is a perspective view showing the overall appearance of a cooking apparatus using a conventional microwave, Figure 2 is a side cross-sectional view showing an enlarged II cut surface of the cooking apparatus shown in Figure 1, Figure 3 is a door portion of a conventional cooking apparatus It is the exploded perspective view which decomposed.

As shown in FIG. 1, a conventional cooking apparatus includes a main body 10 forming an overall appearance, a door 20 opening and closing a front surface of a cooking chamber (not shown) provided inside the main body 10, and the door ( 20 is provided with a handle 33 provided on one side, although not shown in the drawing, the magnetron for oscillating microwaves is mounted inside the main body 10.

As shown in FIG. 2, the II cut surface of FIG. 1 illustrates a cooking chamber 14 provided inside the main body 10 and a front portion 11 to allow the door 20 to be seated on the front surface of the main body 10. Cavity 13 is provided and formed into the main body 10 from the front portion 11 so that the cooking chamber 14 is formed.

One side of the front portion 11 is provided with a gasket 12 to be in close contact with the door 20 so that the cooking chamber 14 is closed when the door 20 is closed.

On the other hand, the door 20 is configured to include a front panel 30 provided on the outside, and the front glass 40 is in close contact with the front panel 30 provided on the inside.

A choke part 31 is provided at an upper end side of the front panel 30 to shield electromagnetic waves leaking from the cooking chamber 14 to the outside, and a projection part having a mesh structure is formed at one side of the front panel 30. A user 32 may observe the inside of the cooking chamber 14 through the projection 32 and the windshield 40.

Meanwhile, as shown in FIG. 3, the door 20 of the conventional cooking apparatus includes a front panel 30 and a front glass 40, and the choke part 31 provided on the upper side of the front panel 30. ) Is a first bent portion 31a, a second bent portion 31b, a third bent portion 31c, and a fourth bent portion formed by being bent at approximately right angles from an upper predetermined portion of the front panel 30, respectively. 31d) and a plurality of slits 31e are provided at regular intervals.

Such a mechanism relating to electromagnetic shielding of the choke portion 31 is disclosed in Republic of Korea Patent No. 10-0575687, Republic of Korea Patent No. 10-0574857, or Republic of Korea Patent Publication No. 10-2005-0027355 filed and registered by the present applicant Since the patent publication or the publication, etc. have been shown in detail and the principle is substantially the same description thereof will be omitted.

Conventional cooking apparatus as described above has the advantage that the front glass 40 is provided to simplify the configuration of the door 20 to facilitate its cleaning, but has a big problem in the following points.

As shown in FIG. 2, the front glass 40 is provided inside the door 20, thereby increasing the space in which electromagnetic waves may leak. That is, the front glass 40 is a glass material, so the permeability is very low as a non-conductor, so that microwaves can be easily transmitted. However, by installing the front panel 30 made of a conductor that cannot transmit microwaves outside the windshield 40 In addition, there is a problem that a significant amount of electromagnetic leakage may occur to the outside by a gap formed between the main body 10 and the door 20, in particular, a gap equal to the thickness of the windshield 40.

The present invention is to solve the above problems, an object of the present invention is to provide a cooking apparatus that can more effectively shield the electromagnetic wave leaking between the door and the body while maintaining the ease of cleaning of the cooking appliance as it is. .

Cooking device according to the present invention for achieving the above object, the main body having a microwave generating device; A cooking chamber provided inside the main body, in which cooking objects are accommodated and cooked by microwaves; A front part provided at an inlet side of the cooking chamber to form a front surface of the main body; At least one filter provided on the front side of the front part to prevent the microwave of the cooking chamber from leaking to the outside; And a door including a projection conductor member formed inside of the transparent material by selectively opening and closing the entrance of the cooking chamber by selectively adjoining the filter.

In addition, the projection conductor member, characterized in that it comprises a transparent member having a predetermined transparency, and a conductive material nano-coated on the surface of the transparent member.

In addition, the projection conductor member is provided on the inside of the door, the transparent member having a predetermined transparency, the conductive projection nano-coated on the surface of the transparent member in close contact with the inside of the transparent member and having a predetermined transparency And a member.

In addition, the filter may include a support part formed substantially perpendicular to the front part, a bent part bent to form a substantially right angle upward from the support part, and a slit formed at a predetermined period in a lateral direction of the front part. Characterized in that.

In addition, the filter may include a first support part formed substantially perpendicular to the front part, a first bent part bent to form a substantially right angle upward from the first support part, and a predetermined direction in a lateral direction of the front part. A first filter including a first slit formed in a cycle; And a second support portion formed substantially perpendicular to the front portion on the first support portion, a second bent portion bent to form a substantially right angle upward from the second support portion, and in a lateral direction of the front portion. And a second filter including a second slit formed at a predetermined period.

The apparatus may further include a sealing member formed on the filter to be in close contact with the projection conductor member to maintain the airtightness of the cooking chamber.

Hereinafter, a preferred embodiment of the cooking apparatus according to the present invention will be described with reference to the drawings.

Figure 4 is a side cross-sectional view showing an enlarged main body and door side cross section of the cooking apparatus according to the present invention, Figure 5 is a perspective view showing an enlarged configuration of the main body and the door side of the cooking apparatus according to the present invention, Figure 6 Side cross-sectional view showing another embodiment of the cooking apparatus according to the invention.

On the other hand, since the cooking apparatus according to the present invention relates to a cooking apparatus having a structure for effectively shielding the leakage of electromagnetic waves, although not shown in the drawings, it is assumed that a device for generating microwaves is basically built in.

As shown in FIG. 4, the cooking apparatus according to the present invention forms a main body 100, a cooking chamber 131 provided inside the main body 100, and a front surface of the main body 100 to form a door 200. It is configured to include a front portion 110 and a door 200 forming a surface facing the inner end portion.

The door 200 is configured to include a door panel 210 forming an outer surface and a projection conductor member 220 installed to contact the inner surface of the door panel 210 to form an inner surface of the door 200. .

The door panel 210 is made of a conductor to prevent the microwaves of the cooking chamber 131 from leaking to the outside, and a projection unit 211 having a mesh structure is formed at one side of the door panel 210 to form the cooking chamber 131. Make the inside observable.

The projection conductor member 220 is basically formed by nano-coating a conductive material on the surface of a transparent member having a predetermined transparency, such as a glass, and the surface exhibits the same properties as a conductor and substantially has a predetermined transparency. Since the inside of the cooking chamber 131 can be observed through the projection part 211.

The projection conductor member 220 does not only mean that the surface of a transparent member such as glass is nano-coated with a conductor, but also includes a case where the whole is a transparent member made of a conductor. Include all components that can be maintained.

The projection conductor member 220 having the properties of the conductor blocks the leakage of microwaves from the cooking chamber 131 to the outside. Unlike the case of non-conducting materials such as glass, the projection conductor member 220 has a high permeability because of the high permeability. It may not penetrate the projection conductor member 220.

Meanwhile, the front part 110 of the main body 100 includes filters 141 and 142, and a sealing member 120 is provided between the filters 141 and 142 and the door 200 to provide the cooking chamber. The airtightness of the inside of the cooking chamber 131 may be leaked to the outside because the sealing member 120 is provided as a non-conductor. It is the filters 141 and 142 that block this.

Although two filters 141 and 142 are configured in FIG. 4, only one filter may be provided.

The perspective view regarding the structure shown in FIG. 4 is shown in FIG. 4 and 5, the filter of the cooking apparatus according to the present invention is characterized in that it is provided in the front portion 110 of the main body (100). The filters 141 and 142 are formed from the support parts 140a and 140c protruding from the lower end side of the front part 110 in a direction substantially perpendicular to the front part 110 and from the support parts 140a and 140c. The front part 110, the support parts 140a and 140c, the bent parts 140b and 140d, and the front part 110 including the bent parts 140b and 140d which are formed to be bent in a substantially perpendicular direction. The upper part of the stepped portion is formed is characterized by forming a shape of "ㅁ" approximately one side is open.

4 and 5 in which two filters are formed here, the lower filter is the first filter 141 and the upper filter is the second filter 142. The first filter 140a is substantially identical in shape. And the lengths of the second support part 140c, the first bent part 140b and the second bent part 140d may be different, and of course, may be substantially the same.

As shown in FIG. 4, the length of the first support part 140a is a, the length of the second support part 140c is c, the length of the first bent part 140b is b, and the length of the second bent part 140d is shown. The length is d, and the distance between the end portion of the first bent portion 140b and the second support portion 140c is g1, and the distance between the end portion of the second bent portion 140d and the stepped portion is g2. The distance between the first bent portion 140b and the projection conductor member 220 of the door 200 is G1, and the distance between the second bent portion 140d and the projection conductor member 220 is G2. In this case, the a or c represents an LC inductance (L), and the g1, g2 and the G1, G2 represents the capacitance (C) of the capacitance (C).

The LC circuit implemented by the a, c and the g1, g2 and the G1, G2 acts as an electromagnetic wave blocking filter. Therefore, the a, b, c and d can be adjusted to block all electromagnetic waves of various frequency bands. In other words, the internal space formed by the filter acts as a resonator to remove electromagnetic waves.

As shown in FIG. 5, the first filter 141 and the second filter 142 are provided with slits 140e formed at regular intervals. The slit 140e may be formed at the first bent portion 140b and the second bent portion 140d, but may be formed to extend to the first support portion 140a and the second support portion 140b. However, as shown in FIG. 5, when the interval between the slits 140e is A and the width of the first bent portion 140b or the second bent portion 140d is B, A + B is substantially lambda /. It is preferable to make it 4 (length corresponding to 1/4 of the wavelength of a microwave). This serves as a suppression filter for blocking some electromagnetic waves leaking from the internal space of the filter acting as the resonator.

On the other hand, looking at another embodiment of the present invention shown in Figure 6, the projection conductor member 220 installed inside the door 200 is configured to include a transparent member 230 and a conductive projection member 221 It is characterized by. That is, the door panel 210 is installed on the outer surface side of the door 200, and the conductive projection member 221 is installed on the inner surface side of the door 200, and the glass is between the door panel 210 and the conductive projection member 221. By installing the transparent member 230 having a predetermined transparency, such as to make the expensive conductive projection member 221 thinner may contribute to reducing the manufacturing cost.

The conductive projection member 221 is formed by nano-coating a conductive material on the surface of a member such as glass, the outer surface is characterized in that the transparent properties can be maintained while having the properties of the conductor. Other parts are the same as those shown in FIGS. 4 and 5.

As described above, in the cooking apparatus according to the present invention shown in FIGS. 4 and 6, the amount of microwaves reflected from the cooking chamber by the projection conductor member 220 to be leaked to the outside is greatly reduced, Since the spacing is very narrowly limited by the spacing between the filter formed in the front part of the main body and the projection conductor member forming the inner surface of the door, the leakage of electromagnetic waves is further reduced. There is a characteristic that can further reduce the risk. And in another embodiment of the present invention shown in Figure 6 by providing a door in a dual structure of the transparent member and the conductive projection member is suppressed that the heat transfer inside the cooking chamber to the outside (since the transparent member is low thermal conductivity) There is a characteristic that can reduce the heat loss of the cooking chamber.

The cooking apparatus according to the present invention having the above characteristics can greatly reduce the gap between the main body and the door to effectively shield leakage of electromagnetic waves, and in the case of another embodiment of the present invention, in addition to the effect of electromagnetic shielding, It is also possible to reduce, and the simple configuration of the door is very easy to clean, as well as the simple structure of the door has the effect of giving the heterogeneous beauty of the appearance.

Claims (6)

A main body having a microwave generator; A cooking chamber provided inside the main body, in which cooking objects are accommodated and cooked by microwaves; A front part which forms a front part of the main body, wherein the front part of the main body is stepped to a predetermined depth along the circumference of the inlet of the cooking chamber; At least one filter provided in the front part and provided along a circumference of an inlet of the cooking compartment to prevent microwaves of the cooking chamber from leaking to the outside; And The projection conductor member is inserted into a step formed on the front surface of the main body to open and close the inlet of the cooking chamber, and the inner surface is formed of a transparent conductor and the projection conductor member is the upper surface of the filter when the entrance of the cooking chamber is closed. Door to cover; Cooking apparatus comprising a. The method of claim 1, wherein the projection conductor member, And a transparent member having a predetermined transparency, and a conductive material nano-coated on the surface of the transparent member. The method of claim 1, wherein the projection conductor member, A transparent member provided inside the door and having a predetermined transparency, and a conductive projection member coated with a conductive material nano-coated on a surface of the transparent member that is in close contact with the inside of the transparent member and has a predetermined transparency. Cooking device. The filter according to any one of claims 1 to 3, wherein A plurality of slits formed between a plurality of support portions formed perpendicular to the front surface portion, a plurality of bent portions bent to form a right angle upward from each of the support portions, and two support portions disposed adjacent to each other; Cooking apparatus comprising a. The filter according to any one of claims 1 to 3, wherein And a first filter and a second filter arranged in two rows along the circumference of the inlet of the cooking chamber. 4. The method according to any one of claims 1 to 3, And a sealing member formed on the filter to be in close contact with the projection conductor member to maintain the airtightness of the cooking chamber.

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