KR20030012639A - Choke cover for isolating microwave - Google Patents
Choke cover for isolating microwave Download PDFInfo
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- KR20030012639A KR20030012639A KR1020010046771A KR20010046771A KR20030012639A KR 20030012639 A KR20030012639 A KR 20030012639A KR 1020010046771 A KR1020010046771 A KR 1020010046771A KR 20010046771 A KR20010046771 A KR 20010046771A KR 20030012639 A KR20030012639 A KR 20030012639A
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- KR
- South Korea
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- choke
- door
- choke cover
- cover
- electromagnetic
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
- H05B6/763—Microwave radiation seals for doors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
본 발명은 전자파 차단용 쵸크커버에 관한 것으로, 공진기의 누설 전자파 차폐용 쵸크에 부착되는 쵸크 커버에 있어서, 유전체를 형성되고 몸체의 두께가 위치에 따라 변화되는 형태로 형성되어, 전자파 누설의 차폐 성능이 향상되도록 구성되며, 예를 들어 상기 몸체가 도어의 주기 구조가 깨지는 모서리 부분에서 변화되는 형태로 구성된다. 이러한 본 발명은 도어 쵸크의 주기가 깨지는 부분에서의 전자파 누설을 방지할 수 있고, 전자레인지의 전면 패널과 도어 사이의 틈새(gap)가 변동하여도 안정된 차폐 성능을 얻을 수 있으며, 사용자의 안전을 더욱 도모할 수 있는 이점이 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a choke cover for electromagnetic wave shielding, comprising: a choke cover attached to a leakage electromagnetic wave choke of a resonator, wherein a dielectric is formed and a thickness of the body is changed according to a position, thereby preventing electromagnetic leakage shielding performance. It is configured to be improved, for example, the body is configured in a form that is changed in the corner portion of the cycle structure of the door is broken. The present invention can prevent electromagnetic leakage in the part where the cycle of the door choke is broken, and can obtain stable shielding performance even when the gap between the front panel and the door of the microwave oven is changed, and the user's safety is improved. There is an advantage that can be further promoted.
Description
본 발명은 누설 전자파 차폐용 쵸크에 부착되고 유전체로 형성되는 전자파 차단용 쵸크 커버에 관한 것으로, 특히 몸체의 두께가 위치에 따라 변화되는 형태로 형성되어, 전자파 누설의 차폐 성능이 향상되도록 한 전자파 차단용 쵸크커버에 관한 것이다.The present invention relates to a choke cover for electromagnetic shielding which is attached to the leakage electromagnetic shielding choke and is formed of a dielectric, and in particular, is formed in a shape in which the thickness of the body varies depending on the position, so that the electromagnetic shielding performance is improved. It relates to a choke cover.
기존 전자레인지 도어의 쵸크 구성은 누설되는 특정의 단일 주파수에 대해서 일정한 밴드역(bandwidth)를 갖고 차폐 성능을 갖도록 설계되어 있다.The choke configuration of conventional microwave doors is designed to have a certain bandwidth and shielding performance for a particular leaking single frequency.
또, 전자레인지의 도어 둘레에는 소정의 단면 구조를 갖는 쵸크가 일정한 주기를 갖고 설치되며 유전율을 갖는 쵸크 커버가 씌워진 상태로 설치된다.In addition, a choke having a predetermined cross-sectional structure is installed around the door of the microwave oven with a constant period and a choke cover having a dielectric constant is covered.
이러한 필터형 초크에서 종래에는 쵸크 커버가 전체면에 걸쳐 동일한 두께로 형성되어 있으므로 특히 도어의 모서리 부분에서 쵸크 커버의 주기 구조가 깨져 전자파 누설 차폐 성능이 떨어지는 문제점이 있었다.In such a filter type choke, since the choke cover is formed to have the same thickness over the entire surface, the periodic structure of the choke cover is particularly broken at the corners of the door, thereby degrading electromagnetic leakage shielding performance.
본 발명은 위와 같은 종래의 결함 및 문제점을 해소하기 위하여 창안한 것으로, 몸체의 두께가 위치에 따라 변화되는 형태로 형성되어, 전자파 누설의 차폐 성능이 향상될 수 있게 되는 전자파 차단용 쵸크커버를 제공하고자 함에 목적이 있다.The present invention was devised to solve the above-mentioned conventional defects and problems, and is formed in a form in which the thickness of the body is changed according to the position, thereby providing a choke cover for electromagnetic wave shielding which can improve electromagnetic wave shielding performance. The purpose is to.
도 1 내지 도 5는 본 발명에 관한 도면으로서,1 to 5 are views of the present invention,
도 1은 전자파 차폐용 쵸크구조를 보인 평면도.1 is a plan view showing a choke structure for electromagnetic shielding.
도 2는 전자파 차폐용 쵸크구조를 보인 부분 단면도.2 is a partial cross-sectional view showing a choke structure for electromagnetic shielding.
도 3은 전자파 차폐용 쵸크의 부분 사시도.3 is a partial perspective view of a choke for electromagnetic shielding.
도 4는 전자파 차폐용 쵸크에서의 L,C회로 구성도.4 is a configuration diagram of an L and C circuit in the choke for electromagnetic wave shielding.
도 5는 본 발명에 의한 쵸크 커버의 작용 설명도.5 is an explanatory view of the operation of the choke cover according to the present invention;
< 도면의 주요부분에 대한 부호의 설명><Description of the reference numerals for the main parts of the drawings>
10 : 쵸크10a : 돌기부10: choke 10a: projection
10b : 절결부11 : 도어 프레임10b: cut out portion 11: the door frame
12 : 쵸크부13 : 쵸크 커버12: choke part 13: choke cover
이와 같은 목적을 달성하기 위하여 본 발명에 의한 전자파 차단용 쵸크커버는 공진기의 누설 전자파 차폐용 쵸크에 부착되고 유전체로 형성되는 쵸크 커버에 있어서, 몸체의 두께가 위치에 따라 변화되는 형태로 형성되어, 전자파 누설의 차폐 성능이 향상되도록 구성된다.In order to achieve the above object, the choke cover for electromagnetic wave shielding according to the present invention is a choke cover attached to the leakage electromagnetic wave choke of the resonator and is formed of a dielectric material, the thickness of the body is formed in a shape that varies with position, It is configured to improve the shielding performance of electromagnetic leakage.
그리고, 본 발명의 한 형태는 상기 몸체가 도어의 주기 구조가 깨지는 모서리 부분에서 변화되는 형태로 구성된다.In addition, one form of the present invention is configured in such a way that the body is changed in the corner portion where the main structure of the door is broken.
이하, 본 발명을 첨부한 도면에 실시예를 들어 보다 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in more detail as follows.
도 1 내지 도 5는 본 발명에 관한 도면으로서, 도 1에는 전자파 차폐용 쵸크구조를 보인 평면도, 도 2에는 전자파 차폐용 쵸크구조를 보인 부분 단면도를 각각 도시되고, 도 3에는 전자파 차폐용 쵸크의 부분 사시도가 도시되어 있으며, 도 4에는 전자파 차폐용 쵸크에서의 L,C회로 구성도가 도시되어 있다.1 to 5 are views of the present invention, FIG. 1 is a plan view showing an electromagnetic wave choke structure, FIG. 2 is a partial cross-sectional view showing an electromagnetic wave choke structure, and FIG. 3 shows a choke for electromagnetic wave shielding. A partial perspective view is shown, and FIG. 4 shows a schematic diagram of L and C circuits in the choke for electromagnetic shielding.
이에 도시한 바와 같이 전자레인지의 도어(도시되지 않음)에 결합되는 쵸크(10)는 도어 프레임(11)에 쵸크부(12)가 일체로 형성되어 구성되고, 쵸크(10)의 내측 주변부에는 유전체인 쵸크 커버(13)가 결합됨과 아울러 외측으로 도어 패널(15)과 스크린(14)이 결합된다.As shown in the drawing, the choke 10 coupled to the door (not shown) of the microwave oven is composed of a choke part 12 integrally formed on the door frame 11, and a dielectric on the inner periphery of the choke 10. In-choke cover 13 is coupled to the door panel 15 and the screen 14 is coupled to the outside.
그리고, 본 발명에 의한 전자파 누설 차단용 쵸크(10)의 한 형태는 금속판재로 프레스 가공하여 형성되고 도어(5)의 내측에 결합되는 도어 프레임(11)의 외측 주연부에 쵸크부(12)를 일체로 절곡하여 형성된다.In addition, one embodiment of the choke 10 for electromagnetic leakage blocking according to the present invention is formed by pressing a metal plate material and the choke portion 12 is formed at the outer periphery of the door frame 11 coupled to the inside of the door 5. It is formed by bending integrally.
또, 복수개의 단차부를 갖는 ""형 단면이 구비됨과 아울러 일단부에 다수개의 돌기부(10a)와 절결부(10b)가 도어의 테두리를 따라 주기적으로 배열되는 형태로 구성된다.And having a plurality of stepped portions. "A cross section is provided, and a plurality of protrusions 10a and cutouts 10b are formed at one end and are periodically arranged along the edge of the door.
상기한 바와 같이 쵸크 구조에서 상기 쵸크 커버(13)는 위치에 따라 두께가 변화되는 형태로 형성된다.As described above, in the choke structure, the choke cover 13 is formed in a shape in which the thickness varies according to the position.
특히, 도어의 모서리 부분, 즉 주기 구조가 깨지는 부분의 쵸크 커버(13)의 두께를 달리하여 전자파 누설의 차폐 성능을 향상시킬 수 있게 된다.In particular, by varying the thickness of the choke cover 13 of the corner portion of the door, that is, the period structure is broken, it is possible to improve the shielding performance of electromagnetic leakage.
도 3과 같이 금속판 사이에는 C값이 존재하고 금속 자체는 L값을 갖게되고, 필터형 쵸크의 경우에는 다음 식(1)에 나타낸 것과 같이 공진되는 주파수가 L,C에 의해 결정되고, C값은 다음 식(2)와 같이 유전율()과 금속체의 단면적(S)에 비례하고 금속판의 간극(d)에 반비례 관계가 있다.As shown in Fig. 3, the C value exists between the metal plates and the metal itself has an L value. In the case of the filter choke, the resonant frequency is determined by L and C as shown in the following equation (1), and the C value Is the dielectric constant ( ) Is proportional to the cross-sectional area S of the metal body and inversely related to the gap d of the metal plate.
…(1) … (One)
…(1) … (One)
따라서, 본 발명과 같이 쵸크 커버(13)의 위치에 따라 두께가 변화되는 형태로 형성되면 결국 유전율이 변화됨으로써 전자파 차폐 성능이 향상되는 것이다.Therefore, when the thickness of the choke cover 13 is formed in the form of changing the shape according to the present invention, the dielectric constant is changed, thereby improving the electromagnetic shielding performance.
도 5는 본 발명에 의한 쵸크 커버의 작용 설명도를 보인 것으로, 쵸크 커버(13)의 두께를 부분에 따라 변화시킴에 의해 감쇄량이 변화됨을 알 수 있다.FIG. 5 illustrates the operation of the choke cover according to the present invention, and it can be seen that the attenuation amount is changed by changing the thickness of the choke cover 13 according to the part.
이상에서 설명한 바와 같은 본 발명은 도어 쵸크의 주기가 깨지는 부분에서의 전자파 누설을 방지할 수 있고, 전자레인지의 전면 패널과 도어 사이의틈새(gap)가 변동하여도 안정된 차폐 성능을 얻을 수 있으며, 사용자의 안전을 더욱 도모할 수 있는 이점이 있다.The present invention as described above can prevent the electromagnetic leakage in the part where the cycle of the door choke is broken, and stable shielding performance can be obtained even if the gap between the front panel and the door of the microwave oven varies. There is an advantage that can further promote the safety of the user.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0046771A KR100414099B1 (en) | 2001-08-02 | 2001-08-02 | Apparatus isolating microwave for microwave range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0046771A KR100414099B1 (en) | 2001-08-02 | 2001-08-02 | Apparatus isolating microwave for microwave range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20030012639A true KR20030012639A (en) | 2003-02-12 |
| KR100414099B1 KR100414099B1 (en) | 2004-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0046771A Expired - Fee Related KR100414099B1 (en) | 2001-08-02 | 2001-08-02 | Apparatus isolating microwave for microwave range |
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| KR (1) | KR100414099B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100701172B1 (en) * | 2005-06-01 | 2007-03-28 | 주식회사 대우일렉트로닉스 | Cookware Adjustable Microwave |
| KR100700543B1 (en) * | 2005-07-13 | 2007-03-28 | 엘지전자 주식회사 | Microwave Cooking Machine |
| KR100910784B1 (en) * | 2008-06-19 | 2009-08-05 | 박승호 | 915MHＺ Industrial Microwave Electromagnetic Shielding Device |
| WO2018190553A1 (en) | 2017-04-12 | 2018-10-18 | 엘지전자 주식회사 | Cooking appliance |
-
2001
- 2001-08-02 KR KR10-2001-0046771A patent/KR100414099B1/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100701172B1 (en) * | 2005-06-01 | 2007-03-28 | 주식회사 대우일렉트로닉스 | Cookware Adjustable Microwave |
| KR100700543B1 (en) * | 2005-07-13 | 2007-03-28 | 엘지전자 주식회사 | Microwave Cooking Machine |
| KR100910784B1 (en) * | 2008-06-19 | 2009-08-05 | 박승호 | 915MHＺ Industrial Microwave Electromagnetic Shielding Device |
| WO2018190553A1 (en) | 2017-04-12 | 2018-10-18 | 엘지전자 주식회사 | Cooking appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100414099B1 (en) | 2004-01-07 |
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St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
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| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
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| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |