KR940006402Y1 - Microwave Magnetron - Google Patents
Microwave Magnetron Download PDFInfo
- Publication number
- KR940006402Y1 KR940006402Y1 KR2019880019699U KR880019699U KR940006402Y1 KR 940006402 Y1 KR940006402 Y1 KR 940006402Y1 KR 2019880019699 U KR2019880019699 U KR 2019880019699U KR 880019699 U KR880019699 U KR 880019699U KR 940006402 Y1 KR940006402 Y1 KR 940006402Y1
- Authority
- KR
- South Korea
- Prior art keywords
- filter
- magnetron
- noise
- filter circuit
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- 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
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- 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
-
- 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
Landscapes
- Filters And Equalizers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 일반적인 마그네트론의 단면도.1 is a cross-sectional view of a general magnetron.
제2도는 필터박스의 평면도.2 is a plan view of the filter box.
제3도는 종래의 필터구성회로를 나타낸 것으로, 제3a도는 필터회로도이고, 제3b도는 제3a도의 등가 회로도이며, 제3c도는 노이즈에 의한 등가 회로도이다.3 shows a conventional filter construction circuit, FIG. 3A is a filter circuit diagram, FIG. 3B is an equivalent circuit diagram of FIG. 3A, and FIG. 3C is an equivalent circuit diagram due to noise.
제4도는 본 고안에 의한 쵸크코일의 정면도.4 is a front view of the choke coil according to the present invention.
제5도는 본 고안에 의한 필터구성회로를 나타낸 것으로서, 제5a도는 필터회로도이고, 제5b도는 제5a도의 등가 회로도이며, 제5c도는 제5b도에 대한 인덕터 등가 회로도이고, 제5d도는 노이즈에 의한 등가회로도이다.FIG. 5 shows a filter configuration circuit according to the present invention, FIG. 5a is a filter circuit diagram, FIG. 5b is an equivalent circuit diagram of FIG. 5a, FIG. 5c is an inductor equivalent circuit diagram for FIG. 5b, and FIG. Equivalent circuit diagram.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
9 : 필터박스 10 : 관통형 콘덴서9: filter box 10: through-type condenser
11, 12, 12' : 쵸크코일 13, 13' : 코어11, 12, 12 ': Choke coil 13, 13': Core
18 : 필라멘트18: filament
본 고안은 전자렌지용 마그네트론에 관한 것으로, 특히 입력부의 필터회로를 개선하여 원가절감과 필터박스의 소형화를 도모코자 한 것이다.The present invention relates to a magnetron for a microwave oven, in particular to improve the filter circuit of the input unit to reduce the cost and miniaturization of the filter box.
일반적으로 전자렌지용 마그네트론은 제1도 및 제2도에서와 같이 상, 하엔드쉴드(19)(20)에 연결되어 전원을 인가해주는 센터리드(21)와, 사이드리이드(22)에 쵸크쿠일(12)(12')과 관통형 콘덴서(10)가 결합구성되어 저역통과 필터회로를 구성하고 있다.In general, the microwave oven magnetron is connected to the upper and lower shields 19 and 20 as in FIGS. 1 and 2 to supply power to the center lead 21 and the choke coil to the side lead 22. (12) (12 ') and the through-type capacitor (10) are combined to form a low pass filter circuit.
제2도에 13, 13'는 코어이다.13, 13 'is a core.
이와같은 필터회로는 작용공간(24)에서 발생되어 필라멘트(18)를 통해 입력측으로 역류되는 고주파노이즈를 제거하는데 제3a도와 같이 코일(L1), 및 콘덴서(C1)에 의한 필터와, 코일(L2)와, 콘덴서(C2)에 의한 필터가 필라멘트(18)의 양단에 연결된 구성으로 되는데, 제3b도와 같은 등가회로로 나타낼 수 있다.Such a filter circuit removes the high frequency noise generated in the working space 24 and flows back to the input side through the filament 18. As shown in FIG. 3a, the filter by the coil L1 and the condenser C1, and the coil L2 ) And a filter by the capacitor C2 are connected to both ends of the filament 18, which can be represented by an equivalent circuit as shown in FIG.
여기서 A, B는 입력단이다.Where A and B are input terminals.
또한, 노이즈의 발생에 따라 제3c도와 같이 등가회로가 형성되는데 여기서 Vn은 노이즈의 전압이다.In addition, as the noise is generated, an equivalent circuit is formed as shown in FIG. 3C, where Vn is the voltage of the noise.
이 노이즈는 필라멘트(18)를 통해 각기 코일(L1) 및, 콘덴서(C1)의 필터와 코일(L2)과 콘덴서(C2)의 필터를 통해 입력단(A)(B) 및 접지간의 전압으로 나타나는데, 고주파 노이즈의 경우 필터에 의해 일차 감쇠된다.This noise is represented by the voltage between the input terminal (A) (B) and ground through the filament (18), respectively, through the coil (L1), the filter of the capacitor (C1) and the filter of the coil (L2) and the capacitor (C2), In the case of high frequency noise, it is first attenuated by the filter.
한편, 노이즈 전압이 입력단(A)(B)간의 전압으로 될 때는 입력단 전압(∨AB)은 ∨AB=∨AG+∨GB의 형태로 되므로 ∨BG=-∨BG로 되어 ∨AG와 ∨BG의 값이 비슷한 경우 노이즈에 의한 입력단 전압(AB)값이 더욱 작아자게 된다.On the other hand, when the noise voltage becomes the voltage between the input terminals A and B, the input terminal voltage AB is in the form of AB = AG + GB, so that BG = −BG and the values of AG and BG. In this case, the value of the input terminal voltage AB due to noise becomes smaller.
여기서 G는 접지점이고, ∨AG는 입력단(A)과 상기 접지점(G)간의 전압이며, ∨BG는 입력단(B)과 상기 접지점(G)간의 전압이다.Where G is the ground point, ∨ AG is the voltage between the input terminal A and the ground point G, and ∨ BG is the voltage between the input terminal B and the ground point G.
이와같은 종래의 필터회로를 2개소에 설치한 쵸크코일(12,12')을 각각의 자기 유도계수를 유지시키기 위해 코어(13) 및 코일의 권선수를 줄일 수가 없었고, 입력전압에 대한 코어(13)가 유도 가열되는 것이 불가피하여 쵸크코일(12,12')을 권회할 때, 권선간에 일정한 간격을 유지시켜 유도가열에 의한 발열을 방지하고자 하였으나 이로인해 필터박스(9)의 크기가 증대하게 되었다.In order to maintain the magnetic induction coefficients of the choke coils 12 and 12 'provided with two such conventional filter circuits, the number of turns of the core 13 and the coils cannot be reduced, and the core to the input voltage ( 13) is inevitable to induction heating, when winding the choke coil (12, 12 '), to maintain a constant interval between the windings to prevent heat generated by induction heating, but this increases the size of the filter box (9) It became.
따라서 마그네트론의 제조원가가 상승되고 그 부피 또한 크게되는 문제점이 있었다.Therefore, there is a problem that the manufacturing cost of the magnetron is increased and its volume is also increased.
본 고안은 상기의 문제점을 해소코자 안출한 것으로 단일 쵸크코어를 2개의 코일이 공유할 수 있도록 필터회로의 구성을 개선한 것이다.The present invention has been made to solve the above problems and improves the configuration of the filter circuit so that two coils can share a single choke core.
이하 첨부한 도면에 의거하여 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 고안은 제4도와 같이 단일 코어(13)를 축으로하여 2개의 쵸크코일(ℓ1,ℓ2)을 연접시켜 감아서 그 하단에 2개의 단자부(A,B)와 상단에 2개의 단자부(A',B')를 인출하여 구성하였다.In the present invention, as shown in FIG. 4, two choke coils (l1 and l2) are connected and wound around a single core 13, and two terminal parts A and B are disposed at the lower end and two terminal parts A 'at the upper end. , B ') was drawn out.
이와같이 구성된 본 고안에 의한 필터회로를 첫째, 입력전원에 의한 전류가 흐르는 경우에는 서로 상쇄되는 인덕턴스 특성을 가지게 되고(제5c도 참조), 이에따라 입력 전원에 의한 유도가열현상을 현저히 감소시키게 된다.First, the filter circuit according to the present invention configured as described above has an inductance characteristic that cancels each other when a current flows through an input power supply (see FIG. 5C), thereby significantly reducing the induction heating phenomenon caused by the input power supply.
둘째, 작용공간(24)에서 입력단으로 역류한 노이즈의 경우에는 제3c도 또는 제5d도에서와 같이 서로 합쳐져서 값이 커지게 되는 인덕턴스 특성을 갖게되므로, 원하는 저역통과 필터회로를 구성하는데 사용하는 인덕턴스를 단일의 코어(13)와 기존보다 1/2만을 권회한 코일로써 얻을 수 있게 되는 것이다.Second, in the case of the noise flowing back to the input terminal in the working space 24, as shown in FIG. 3C or FIG. 5D, the inductance characteristics are increased to increase the value. Therefore, the inductance used to construct a desired lowpass filter circuit is shown. It can be obtained with a single core 13 and a coil wound only 1/2 of the existing.
즉, 본 고안은 전원전류에 영향과 노이즈에 의한 전류의 방향이 각각 다른 것을 이용하여, 상기와 같은 인덕턴스 성분을 공유하는 코어(13)를 이용한 필터회로를 구성할 수가 있어 필터박스의 부피를 작게할 수 있으므로 더욱 콘팩트한 설계가 가능하며 재료의 절감을 이루어 제조원가가 절감되는 효과가 있는 유용한 고안이다.In other words, according to the present invention, the filter circuit using the core 13 sharing the inductance component as described above can be configured by using the influence of the power current and the direction of the current due to noise, respectively, so that the volume of the filter box is reduced. It is possible to design more compact, so it is a useful design that has the effect of reducing the manufacturing cost by reducing the material.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880019699U KR940006402Y1 (en) | 1988-11-30 | 1988-11-30 | Microwave Magnetron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880019699U KR940006402Y1 (en) | 1988-11-30 | 1988-11-30 | Microwave Magnetron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900010778U KR900010778U (en) | 1990-06-04 |
| KR940006402Y1 true KR940006402Y1 (en) | 1994-09-24 |
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ID=19281772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880019699U Expired - Lifetime KR940006402Y1 (en) | 1988-11-30 | 1988-11-30 | Microwave Magnetron |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940006402Y1 (en) |
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1988
- 1988-11-30 KR KR2019880019699U patent/KR940006402Y1/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| KR900010778U (en) | 1990-06-04 |
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