KR830000136Y1 - Magnetron Leakage Propagation Device - Google Patents

Magnetron Leakage Propagation Device Download PDF

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Publication number
KR830000136Y1
KR830000136Y1 KR2019820002105U KR820002105U KR830000136Y1 KR 830000136 Y1 KR830000136 Y1 KR 830000136Y1 KR 2019820002105 U KR2019820002105 U KR 2019820002105U KR 820002105 U KR820002105 U KR 820002105U KR 830000136 Y1 KR830000136 Y1 KR 830000136Y1
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KR
South Korea
Prior art keywords
leakage
magnetron
noise
fundamental wave
present
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Application number
KR2019820002105U
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Korean (ko)
Inventor
박영환
Original Assignee
삼성전자공업주식회사
강진구
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Priority to KR2019820002105U priority Critical patent/KR830000136Y1/en
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Publication of KR830000136Y1 publication Critical patent/KR830000136Y1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/14Leading-in arrangements; Seals therefor

Abstract

내용 없음.No content.

Description

마그네트론의 누설전파 방지장치Magnetron Leakage Propagation Device

제1도는 본 고안의 사시도.1 is a perspective view of the present invention.

제2도는 제1도의 A-A선 단면도.2 is a sectional view taken along the line A-A of FIG.

제3도는 제1도의 B-B선 단면도.3 is a cross-sectional view taken along the line B-B in FIG.

제4도는 본 고안의 쉴드캔의 사시도.Figure 4 is a perspective view of the shield can of the present invention.

제5도는 본 고안의 내부쵸크와 중간쵸크의 분해사시도.5 is an exploded perspective view of the inner and intermediate chokes of the present invention.

제6도는 본 고안의 누설방지판의 발췌도.Figure 6 is an extract of the leakproof plate of the present invention.

제7도는 본 고안의 고주파회로에서 개방단자와 단락단자의 전압 및 전류의 파형도.7 is a waveform diagram of the voltage and current of the open terminal and the short terminal in the high frequency circuit of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1,1' : 누설방지판 2,2' : 절연세라믹1,1 ': Leak-proof plate 2,2': Insulated ceramic

3,3' : 쉴드캔 4,4' : 필라멘트리드3,3 ': Shield Can 4,4': Filament Lead

5,5' : η/4 길이의 원통형 쵸크5,5 ': cylindrical choke with length η / 4

본 고안은 전자렌지용 마그네트론에서 발생되는 노이즈(NOISE)의 누설전파 방지장치에 관한 것이다.The present invention relates to a device for preventing leakage propagation of noise generated in a magnetron for a microwave oven.

마그네트론은 정상 동작시 기본파(예 2450MHZ)이외의 주파수를 가진 에너지가 일부 방출되어 이것이 노이즈가 되고 T.V나 라디오, 기타 통신에 많은 장애를 주는요인이 되었다.The magnetron emits some energy with frequencies other than the fundamental wave (for example, 2450 MHZ) during normal operation, which makes noise and causes many problems in T.V, radio, and other communications.

따라서 이러한 노이즈를 제거하기 위하여종래의 마그네트론은 내부에 누설방지판을 설치하였으나, 이는 주로 기본과 및 기본파보다 낮은 주파수대의 노이즈 누설방지에 효과가 있었을뿐, 기본파보다 높은 특정 주파수대에 있어서는 누설방지의 효과가 없었다.Therefore, in order to remove such noise, the conventional magnetron has a leakage preventing plate installed inside, but this is mainly effective in preventing noise leakage in the fundamental and lower frequency bands, and in the specific frequency band higher than the fundamental wave. There was no effect.

본 고안은 종래의 이러한 문제점을 해결하기 위하여 안출한 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다. 즉, 통상의 쵸크(CHOKE)에 있어서, 그 외주연에형의 설방지판(1)(1')을 외설하고, 절연 세라믹(2)(2')외 부에 쉴드캔(SHILDCAN)(3)(3')을 설치한후, 필라멘트 리드(4)(4')가 나오는 부분에 특정 주파수의 η/4(η : 파장) 길이의 원통형 금속으로된 쵸크(5)(5')를 형성한 것으로, 미설명부호(7)은 베인, (8)은 안테나, (9)는 필라멘트, (10)(10')는 폴피스(11)은 마그네트이다.The present invention is described in detail by the accompanying drawings, which were devised to solve the conventional problems as follows. That is, in the normal choke (CHOKE), the outer periphery After installing the snow-proof plate (1) (1 ') of the mold, and installing a shield can (SHILDCAN) (3) (3') outside the insulating ceramic (2) (2 '), the filament lead (4) At the point where (4 ') appears, chokes (5) (5') made of cylindrical metal of length η / 4 (η: wavelength) of a specific frequency are formed, and reference numeral 7 denotes a vane, (8) Silver antenna, 9 is filament, and 10 and 10 'pole piece 11 is magnet.

이와 같이 구성된 본 고안은 기본파 및 기본파 이외의 주파수를 가진 노이즈의 누설은 쵸크(6)(6')로 방지하고, 기본파보다 높은 특정주파수에 대한 누설을 누설방지판(1)(1')과 쵸크(6)(6')가 조합되어 방지하며, 절연세라믹(2)(2')을 통하여 외부로 누설되는 일부 노이즈는 쉴드캔(3)(3')으로 차폐하고, 필라멘트리드(4)(4')를 통하여 누설되는 일부의 노이즈는 원통형쵸크(5)(5')가 방지하여 종래의 마그네트론의 노이즈 주설방지장치가 기본파 및기본파보다 낮은 노이즈의 누성방지에만 효과가 있었던것을 본 고안은 기본파 보다 높은 특정주파수의 노이즈 누설방지뿐만 아니라, 기본파 및 기본파보다 낮은 모두 주파수대에 걸쳐 누설방지를 하는 효과를 지닌것으로 종래의 마그네트론과 본 고안의 누설전파에 관하여 시험대비하여 비교하면 다음과 같다.The present invention configured as described above prevents leakage of noise having frequencies other than the fundamental wave and the fundamental wave with the choke (6) (6 '), and prevents leakage at a specific frequency higher than the fundamental wave (1) (1). ') And choke (6) (6') are combined to prevent some noise leaking to outside through insulating ceramic (2) (2 '), shielded with shield can (3) (3'), filament lead (4) Cylindrical chokes (5) (5 ') prevent some of the noise leaked through (4'), and the conventional magnetron noise suppression device is effective only to prevent the leakage of noise lower than the fundamental wave and the fundamental wave. The present invention not only prevents noise leakage at a specific frequency higher than the fundamental wave, but also has the effect of preventing leakage over both the fundamental wave and the lower frequency than the fundamental wave. The comparison is as follows.

비교표에서도 도시한 바와 같이 종래의 마그네트론은 노이즈가 심한 반면 본 고안은 누설방지판(1)(1')과 쉴드캔(3)(3')원통형 쵸크(5)(5') 등에서 누설을 방지하여 노이즈가 현전히 격감하였음을 알 수 있으며 또 쵸크(5)(5')를 η/4로 하는 이유는 A에서는 단락단자, B는 단락단자에서 η/4 떨어진 지점으로 이지점의 전압이 최대이고 전류가 최소인 지점이며, B점으로 부터 η/4떨어진 지점 C는 단락단자와 동일한 위치가 되어 틈이 없는 곳으로, 고주파누설전류가 C점에서 화살표 방향으로 전송되지 않기 때문에 쵸크(5)(5')는 η/4로 하여야 가장좋은 누설을 방지할 수 있는 것이다.As also shown in the comparison table, the conventional magnetron is noisy, while the present invention prevents leakage in the leakage preventing plates 1, 1 'and the shield can 3, 3' cylindrical chokes 5, 5 '. The reason is that the choke (5) (5 ') is η / 4. The reason is that the shorting terminal is A and B is eta / 4 away from the shorting terminal. And the point where the current is minimum, and point C, which is η / 4 away from point B, is the same position as the short-circuit terminal, and there is no gap. (5 ') should be η / 4 to prevent the best leakage.

Claims (1)

통상의 쵸크에 어있서, 그 외주연에형의 누설방지판(1)(1')을 외설하고, 절연세라믹(2)(2')외부에 쉴드캔(3)(3')을 설치하여서된마그네트론의 누설전파 방지장치.In normal choke, in the outer circumference A device for preventing leakage propagation of magnetrons by installing a leakproof plate (1) (1 ') of a mold type and a shield can (3) (3') outside the insulating ceramic (2) (2 ').
KR2019820002105U 1982-03-19 1982-03-19 Magnetron Leakage Propagation Device KR830000136Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019820002105U KR830000136Y1 (en) 1982-03-19 1982-03-19 Magnetron Leakage Propagation Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019820002105U KR830000136Y1 (en) 1982-03-19 1982-03-19 Magnetron Leakage Propagation Device

Related Parent Applications (1)

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KR2019810000908 Division 1981-02-10

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KR830000136Y1 true KR830000136Y1 (en) 1983-02-09

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