KR19990007627U - Microwave noise emission suppression circuit - Google Patents
Microwave noise emission suppression circuit Download PDFInfo
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- KR19990007627U KR19990007627U KR2019970021149U KR19970021149U KR19990007627U KR 19990007627 U KR19990007627 U KR 19990007627U KR 2019970021149 U KR2019970021149 U KR 2019970021149U KR 19970021149 U KR19970021149 U KR 19970021149U KR 19990007627 U KR19990007627 U KR 19990007627U
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- filter
- noise
- magnetron
- microwave oven
- condensers
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- 230000001629 suppression Effects 0.000 title claims abstract description 10
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract description 3
- 229910018605 Ni—Zn Inorganic materials 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013305 food Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Abstract
본 고안은 전자렌지의 노이즈 방출 억제 회로에 관한 것으로, 페라이트코어 특히, Ni-Zn 계열의 페라이트코어를 L-C휠터와 파워트랜스 사이에 구비하여 도선과 상호작용되게하여 L-C휠터를 통과한 고주파 대역의 노이즈를 여과시키도록 하므로써 통신장비 등의 외부기기에 노이즈의 영향이 미치지 않게한 전자렌지의 노이즈 방출 억제 회로에 관한 것이다.The present invention relates to a noise emission suppression circuit of a microwave oven. A ferrite core, especially a Ni-Zn-based ferrite core, is provided between an LC filter and a power transformer so as to interact with a lead wire to pass noise through a LC filter. The present invention relates to a noise emission suppression circuit of a microwave oven, in which a noise is not influenced by external devices such as communication equipment by filtering the filter.
이러한 본 고안은 쵸크코일(L1, L2)과 콘덴서(C1, C2)로 구성되어지며, 마그네트론(12)의 음극부와 파워트랜스(11) 사이에 접속되어 마그네트론(12)으로부터 발생되는 노이즈가 전원입력단을 통해 외부기기들로 전달되는 것을 방지하는 L-C휠터(10)가 구성되어 있는 전자렌지의 회로에 있어서, 상기 쵸크코일(L1, L2)과 콘덴서(C1, C2)로 구성된 L-C휠터(10)의 콘덴서(C1, C2)와 상호작용하여 고주파대역의 노이즈를 여과시키는 한 개 이상의 페라이트코어(L3)를 상기 파워트랜스(11)와 L-C휠터(10) 사이의 도선을 감싸도록 배치시켜, 상기 코일(L1, L2)와 콘덴서(C1,C2)으로 구성된 L-C휠터(10)을 통과한 고주파대역의 노이즈를 여과시켜, 마그네트론의 발진시 발생되는 노이즈가 전원입력단을 통해 외부기기에 전달되는 것을 방지하여 외부기기의 오동작하는 방지한 것이다.The present invention is composed of choke coil (L1, L2) and condensers (C1, C2), the noise generated from the magnetron 12 is connected between the cathode portion of the magnetron 12 and the power transformer 11 In a microwave oven circuit, in which an LC filter 10 is prevented from being transmitted to external devices through an input terminal, an LC filter 10 including the choke coils L1 and L2 and condensers C1 and C2 is provided. One or more ferrite cores L3 which interact with the condensers C1 and C2 of the high frequency band to filter the noise of the high frequency band, so as to surround the conducting wires between the power transformer 11 and the LC filter 10, and By filtering the noise of the high frequency band passing through the LC filter (10) consisting of (L1, L2) and condensers (C1, C2), to prevent the noise generated when the magnetron oscillation is transmitted to the external device through the power input terminal This is to prevent malfunction of external equipment.
Description
본 고안은 전자렌지의 노이즈 방출 억제 회로에 관한 것으로, 페라이트코어 특히, Ni-Zn 계열의 페라이트코어를 L-C휠터와 파워트랜스 사이에 구비하여 도선과 상호작용되게하여 L-C휠터를 통과한 고주파 대역의 노이즈를 여과시키도록 하므로써 통신장비 등의 외부기기에 노이즈의 영향이 미치지 않게한 전자렌지의 노이즈 방출 억제 회로에 관한 것이다.The present invention relates to a noise emission suppression circuit of a microwave oven. A ferrite core, especially a Ni-Zn-based ferrite core, is provided between an LC filter and a power transformer so as to interact with a lead wire to pass noise through a LC filter. The present invention relates to a noise emission suppression circuit of a microwave oven, in which a noise is not influenced by external devices such as communication equipment by filtering the filter.
보통 전자렌지에는 음식물을 넣어서 조리할 수 있도록한 가열실과, 그리고 상기 가열실의 내부로 수용되는 음식물을 골고루 익히기 위해서 그 음식물들을 회전시킴에 제공되는 트레이, 음식물에 열을 가하기 위한 히터 및 음식물에 고주파를 방사하여 음식물내의 분자 운동이 촉진되게 하는 마그네트론을 구비하고 있다.Microwave ovens usually have a heating chamber that allows food to be cooked, and a tray provided to rotate the foods to cook the food contained inside the heating chamber evenly, a heater for heating the food, and a high frequency to the food. It is equipped with a magnetron that radiates and promotes molecular movement in food.
상기 마그네트론의 발진에 의한 고주파 발생시에는 동시에 노이즈가 발생되어지며, 이 노이즈는 회로를 따라 다른 구성소자들에 전달되어 소자들이 오동작되게 하고 심하게는 전원입력단을 통과하여 외부기기들에 영향을 주어 외부기기들이 오동작되게 하는 문제가 있으므로 전자렌지회로에는 이 노이즈를 차단시키기 위한 휠터회로가 구성되어 있다. 상기 노이즈 차단을 위한 휠터회로가 구성된 전자렌지회로의 일부를 도 1에 개략적으로 도시하였다.When high frequency is generated by the oscillation of the magnetron, noise is generated at the same time, and this noise is transmitted to other components along the circuit, causing the devices to malfunction and severely passing through the power input terminal to affect external devices. Since there is a problem that causes them to malfunction, the microwave circuit is configured with a filter circuit for blocking this noise. A part of the microwave oven circuit in which the filter circuit for blocking noise is configured is schematically illustrated in FIG. 1.
도시된 바와 같이, 휠터회로(1)는 콘덴서(C1, C2)들과 쵸크코일(L1, L2)들로 구성되어지며, 전원입력단 측의 트랜스(2)와 마그네트론(3)의 음극부 사이에 전기적으로 접속되어 마그네트론(3)의 발진시 발생된 노이즈를 차단하시키게 된다.As shown, the filter circuit 1 is composed of condensers C1 and C2 and choke coils L1 and L2, and is disposed between the transformer 2 on the side of the power input and the cathode of the magnetron 3. It is electrically connected to block the noise generated when the magnetron 3 is started.
그러나 상기 마그네트론(3)에 의해 발생되어진 노이즈는 고주파대역의 노이즈로서 휠터회로(1)에 충분히 차단되지 못하고 전원입력단을 통과하여 외부기기 특히 통신기기 등에 영향을 미치게 되고 상기 마그네트론(3)에서 발생된 노이즈의 영향을 받는 통신기기는 잡음이 심하여 정상적인 통신 상태를 유지할 수 없었다.However, the noise generated by the magnetron 3 is a noise of a high frequency band and is not sufficiently blocked by the filter circuit 1 and passes through a power input terminal to affect external devices, especially communication devices, and the like. The communication equipment affected by the noise was noisy and could not maintain a normal communication state.
따라서 본 고안의 목적은 상기한 제반 결점들을 해소하고, L-C휠터와 파워트랜스 사이의 배선을 감싸도록 페라이트코어를 배치시켜 배선과 상호작용되게 하므로써 L-C휠터를 통과한 노이즈를 여과시키게하여 마그네트론의 발진시 발생되는 노이즈가 외부기기에 전달되는 것을 방지한 전자렌지의 노이즈 방출 억제 회로를 제공하는 데 있다.Therefore, the object of the present invention is to solve the above-mentioned shortcomings, and to arrange the ferrite core to surround the wiring between the LC filter and the power transformer so as to interact with the wiring, thereby filtering the noise passing through the LC filter to oscillate the magnetron. The present invention provides a noise emission suppression circuit of a microwave oven, in which generated noise is prevented from being transmitted to an external device.
상기 목적을 달성하기 위한 본 고안의 특징은, 쵸크코일과 콘덴서로 구성되어지며, 마그네트론의 음극부와 파워트랜스 사이에 접속되어 마그네트론으로부터 발생되는 노이즈가 전원입력단을 통해 다른 전자기기들로 전달되는 것을 방지하는 L-C휠터가 구성된 전자렌지에 있어서, 상기 파워트랜스와 L-C휠터 사이의 배선을 깜싸도록 구비되어지며, 배선과 상호작용하여 상기 쵸크코일과 콘덴서로 구성된 L-C휠터를 통과한 고주파대역의 노이즈를 여과시키는 휠터 역할을 하는 페라이트코어를 포함하는 전자렌지의 노이즈 방출 억제 회로에 있다.A feature of the present invention for achieving the above object is composed of a choke coil and a condenser, and is connected between the negative portion of the magnetron and the power transformer to transfer the noise generated from the magnetron to other electronic devices through the power input terminal. In the microwave oven is configured to prevent the LC filter, it is provided to forgo the wiring between the power transformer and the LC filter, and interact with the wiring to filter the noise of the high frequency band passing through the LC filter consisting of the choke coil and condenser The noise emission suppression circuit of a microwave oven including a ferrite core that acts as a filter.
이하 첨부된 도면에 의거 본 고안에 따른 전자렌지의 노이즈 방출 억제회로의 보다 바람직한 실시예를 상세하게 설명한다.Hereinafter, a more preferred embodiment of the noise emission suppression circuit of the microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.
도 1은 종래의 휠터회로를 갖는 전자렌지 구성회로의 일부를 도시한 회로도이고,1 is a circuit diagram showing a part of a microwave oven configuration circuit having a conventional filter circuit,
도 2는 본 고안에 따른 페라이트코어를 갖는 휠터회로가 구성되어진 전자렌지회로의 일부를 도시한 회로도이다.2 is a circuit diagram showing a part of a microwave oven circuit in which a filter circuit having a ferrite core according to the present invention is constructed.
〈도면의주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
10 ... L-C휠터 11 ... 파워트랜스10 ... L-C filter 11 ... power transformer
12 ... 마그네트론 C1, C2 ... 콘덴서12 ... magnetron C1, C2 ... capacitors
L1, L2 ... 쵸크코일 L3 ... 페라이트코어L1, L2 ... choke coil L3 ... ferrite core
도 2는 본 고안에 따른 보조휠터가 구성되어진 전자렌지 구성회로의 일부를 도시한 회로도이다.Figure 2 is a circuit diagram showing a part of the microwave component circuit is configured an auxiliary filter according to the present invention.
도시된 바와 같이, 전자렌지의 노이즈 방출 억제 회로는 페라이트코어(L3)를 포함하고 있다.As shown, the noise emission suppression circuit of the microwave oven includes a ferrite core L3.
상기 페라이트코어(L3)는 파워트랜스(11)와 L-C휠터(10) 사이에 배선되어진 도선을 감싸도록 설치되어져 도선과 상호작용함에 의해 하나의 휠터역할을 한다.The ferrite core L3 is installed to surround the conductive wires wired between the power transformer 11 and the L-C filter 10 to act as a filter by interacting with the conductive wires.
상기 페라이트코어(L3)는 통신기기 등에 사용되어지는 주파수휠터와 같이 고주파대역의 노이즈를 여과하도록 동작하여 쵸크코일(L1, L2)와 콘덴서(C1, C2)로 구성된 L-C휠터(10)에서 여과시키지 못하고 통과된 고주파대역에 포함되어진 노이즈를 여과시키게 된다.The ferrite core (L3) is operated to filter the noise of the high frequency band, such as the frequency filter used in communication equipment, so as to filter in the LC filter (10) consisting of choke coils (L1, L2) and condensers (C1, C2). The noise contained in the high frequency band passed by the filter is filtered.
이상과 같이 본 고안에 의하면, 상기 페라이트코어(L3)가 페라이트코어(L3)에 의해 감싸여진 도선과 상호작용하여 L-C휠터(10)를 통과한 고주파수 대역의 노이즈를 여과하므로 마그네트론(12)의 발진시 발생되어진 노이즈가 외부기기로 전달되는 것이 대폭 억제되므로 통신장비 등의 외부기기가 정상적인 상태로 동작될 수 있도록하는 효과가 있다.According to the present invention as described above, the ferrite core (L3) interacts with the conductor wrapped by the ferrite core (L3) to filter the noise of the high frequency band passing through the LC filter 10, the oscillation of the magnetron 12 Since the noise generated at the time of being transmitted to the external device is greatly suppressed, there is an effect that the external device such as communication equipment can be operated in a normal state.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970021149U KR19990007627U (en) | 1997-07-31 | 1997-07-31 | Microwave noise emission suppression circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970021149U KR19990007627U (en) | 1997-07-31 | 1997-07-31 | Microwave noise emission suppression circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19990007627U true KR19990007627U (en) | 1999-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019970021149U Ceased KR19990007627U (en) | 1997-07-31 | 1997-07-31 | Microwave noise emission suppression circuit |
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| Country | Link |
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| KR (1) | KR19990007627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436148B1 (en) * | 2001-12-24 | 2004-06-14 | 삼성전자주식회사 | Microwave oven |
| WO2024014677A1 (en) * | 2022-07-11 | 2024-01-18 | 삼성전자 주식회사 | Microwave oven comprising magnetic body surrounding current path |
-
1997
- 1997-07-31 KR KR2019970021149U patent/KR19990007627U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100436148B1 (en) * | 2001-12-24 | 2004-06-14 | 삼성전자주식회사 | Microwave oven |
| WO2024014677A1 (en) * | 2022-07-11 | 2024-01-18 | 삼성전자 주식회사 | Microwave oven comprising magnetic body surrounding current path |
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