CN1129782A - 电灶的磁控管 - Google Patents

电灶的磁控管 Download PDF

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Publication number
CN1129782A
CN1129782A CN95117148A CN95117148A CN1129782A CN 1129782 A CN1129782 A CN 1129782A CN 95117148 A CN95117148 A CN 95117148A CN 95117148 A CN95117148 A CN 95117148A CN 1129782 A CN1129782 A CN 1129782A
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China
Prior art keywords
magnetron
terminal
choke
high frequency
filament
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CN95117148A
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CN1085817C (zh
Inventor
张龙基
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LG Electronics Inc
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LG Electronics Inc
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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
    • H05B6/66—Circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/14—Leading-in arrangements; Seals therefor
    • H01J23/15—Means for preventing wave energy leakage structurally associated with tube leading-in arrangements, e.g. filters, chokes, attenuating devices
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2225/00—Transit-time tubes, e.g. Klystrons, travelling-wave tubes, magnetrons
    • H01J2225/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Microwave Tubes (AREA)
  • Electric Ovens (AREA)

Abstract

提供能减少向输入部分泄漏的不需要的高频量和防止烧毁扼流圈的电灶磁控管。其构造是，在把支持灯丝的引线和扼流圈电连接的F端子，与F陶瓷块外部连接的电灶的磁控管中，上述F端子，设有遮断向磁控管输入部分侧面泄漏的不需要的高频的扼流结构。

Description

电灶的磁控管
本发明涉及电灶，特别是涉及设法减少在输入部一侧泄漏不必要高频辐射的电灶磁控管。
如图1所示，电灶的磁控管，其灯丝2产生的热电子，发射到阳极圆筒1内壁上形成的多个汇流条3和灯丝2之间的作用空间4，通过在汇流条和灯丝之间产生电场和由磁铁5，6、上板7、下板8、磁极9构成的磁路，产生微波，在向外部发射微波的天线10上面形成的天线引出头13，与散板14在阳极外部耦连，此外，为遮断在输入部方向泄漏高频能量，扼流圈部器件15和高压电容16以及使其绝缘的滤波器外壳17、18构成滤波电路。支持上述灯丝2的中心引线19和侧面引线20，***下方绝缘体F陶瓷块21的孔中，与F端子22结合在一起构成。
以前，F端子22如图2所示，由钎焊在F陶瓷块21上的面(A)和与扼流圈部件15耦连的弯曲部分构成。
在这样构成的以前的磁控管中：由于从阳极产生的高频成分的能量，通过天线10再通过输出部分向外辐射，所以，从阳极内部产生的高频成分的一部分却反过来通过灯丝2，中心引线19及侧面引线20向输入部方面泄漏。该不需要的高频成分被滤波器外壳17、18屏蔽，所说的滤波器外壳17、18在外部包围上述中心线19及通过熔接与侧引线20结合的F端子22而连接的扼流圈部件15和电容器16。
因此，F端子的平面(A)，在用以把中心引线19和侧引线20连结到F陶瓷块21的F陶瓷块下段形成的金属上升的两面用钎焊连接，平面部的相对侧与上述扼流圈部件15相连，以完成输入电源向灯丝供电的连结任务，而不必完成抵销向输入部那方泄漏的不需要的高频部分的扼流任务。
这里，不需要的高频，包括在磁控管使用的基波及低频段高频和高频段的高频。
在磁控管产生的不需要的高频的部分、在通过扼流圈被除掉的过程中产生热量，泄漏的高频的量大就产生高热，发生使上述的扼流圈漆包线烧毁的问题，因此，在上述过程中未被抵消掉的不需要的高频，照原样存在泄漏问题。
本发明的目的是提供能减少向输入部泄漏不需要的高频量和防止扼流圈烧毁的电灶磁控管。
本发明的电灶的磁控管，是在把支持灯丝的引线和扼流圈电连接的F端子与F陶瓷块外部结合的电灶磁控管中，其特征是上述F端子装配有遮断向磁控管输入侧泄漏的不需要的高频成分的扼流圈。
附图的简单说明。
图1表示一般的磁控管内部结构图。
图2表示以前磁控管F端子的立体图。
图3(A)(B)(C)表示本发明磁控管F端子的立体图。
实施例
如第3图所示，本发明的磁控管F端子122设有遮断不需要高频的扼流圈结构。
即，本发明的F端子122是，假如如图3((A)，(C)所示，在主体形成槽120，则如图3(B)所示，在与主体相连的翼部121形成槽的结构。
此处，槽长(L)是要抑制的高频波长的1/4。
如此构成的本发明F端子122，连接引线19，20以及扼流圈部件15，通过抑制不需要高频的扼流作用，防止烧毁扼流圈，由于上述的F端子与扼流圈部件一起抑制不需要的高频，所以全部的不需要的高频抑制量增大，能提供可靠性高和品质优良的磁控管。
如上述说明那样，本发明由于F端子起到了扼流作用，减少了向输入部泄漏的不需要的高频量，能防止扼流圈的烧毁。

Claims (3)

1.一种电灶的磁控管，它把电连接支持灯丝的引线和扼流圈的F端子，与陶瓷块外部结合，其特征是上述F端子设有遮断向磁控管输入部一侧泄漏的不需要的高频的扼流结构。
2.按照权利要求1的一种电灶的磁控管，其特征是上述F端子设有1个以上的槽。
3.按照权利要求2的一种电灶磁控管，其特征是上述槽的全长是要抑制的高频波长的1/4。
CN95117148A 1994-08-29 1995-08-29 电灶的磁控管 Expired - Fee Related CN1085817C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR21432/94 1994-08-29
KR1019940021432A KR0160810B1 (ko) 1994-08-29 1994-08-29 전자레인지의 마그네트론 장치

Publications (2)

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CN1129782A true CN1129782A (zh) 1996-08-28
CN1085817C CN1085817C (zh) 2002-05-29

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US (1) US5686007A (zh)
EP (1) EP0700233A3 (zh)
JP (1) JP2777093B2 (zh)
KR (1) KR0160810B1 (zh)
CN (1) CN1085817C (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100347485C (zh) * 2003-09-10 2007-11-07 东芝北斗电子株式会社 微波炉
CN102553188B (zh) * 2007-04-03 2015-11-25 住胶体育用品株式会社 一套高尔夫球杆

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100212856B1 (ko) * 1996-02-23 1999-08-02 윤종용 전자렌지의 고주파누설 차단장치
KR100819600B1 (ko) 2006-02-10 2008-04-03 엘지전자 주식회사 아이스 트레이용 물탱크 및 이를 이용하는 아이스 트레이조립체
KR101974213B1 (ko) * 2016-10-24 2019-08-23 엘지전자 주식회사 전자레인지용 마그네트론

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819900A (en) * 1972-06-13 1974-06-25 Amana Refrigeration Inc Waveguide filter for microwave heating apparatus
US4313044A (en) * 1980-11-05 1982-01-26 General Electric Company Slot configuration for choke seal
KR870002031B1 (ko) * 1985-04-03 1987-11-30 주식회사 금성사 전자 레인지의 고주파 누설 차단장치
JPH06101304B2 (ja) * 1986-03-26 1994-12-12 株式会社日立製作所 マグネトロン
EP0339374B1 (en) * 1988-04-25 1994-03-02 Matsushita Electronics Corporation A magnetron
KR920003336B1 (ko) * 1990-06-30 1992-04-27 주식회사 금성사 슬릿을 가진 콘덴서 취부판으로 고주파누설 차폐기능을 개선시킨 마그네트론
DE4135896A1 (de) * 1990-10-31 1992-05-07 Gold Star Co Einrichtung zum verhindern von unerwuenschten elektromagnetischen wellen eines magnetrons und verfahren zur herstellung derselben
US5280218A (en) * 1991-09-24 1994-01-18 Raytheon Company Electrodes with primary and secondary emitters for use in cross-field tubes
KR950002361Y1 (ko) * 1992-03-27 1995-03-31 이헌조 전자레인지용 마그네트론의 기본파 및 고조파 노이즈 성분 누설방지장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100347485C (zh) * 2003-09-10 2007-11-07 东芝北斗电子株式会社 微波炉
CN102553188B (zh) * 2007-04-03 2015-11-25 住胶体育用品株式会社 一套高尔夫球杆

Also Published As

Publication number Publication date
JPH08106855A (ja) 1996-04-23
EP0700233A2 (en) 1996-03-06
US5686007A (en) 1997-11-11
CN1085817C (zh) 2002-05-29
EP0700233A3 (en) 1996-07-10
KR960008178A (ko) 1996-03-22
KR0160810B1 (ko) 1998-12-01
JP2777093B2 (ja) 1998-07-16

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