KR0181619B1 - Low voltage circuit of microwave oven - Google Patents
Low voltage circuit of microwave oven Download PDFInfo
- Publication number
- KR0181619B1 KR0181619B1 KR1019960010966A KR19960010966A KR0181619B1 KR 0181619 B1 KR0181619 B1 KR 0181619B1 KR 1019960010966 A KR1019960010966 A KR 1019960010966A KR 19960010966 A KR19960010966 A KR 19960010966A KR 0181619 B1 KR0181619 B1 KR 0181619B1
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- South Korea
- Prior art keywords
- low voltage
- lamp
- drive motor
- fan motor
- voltage
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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
- 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
- H05B6/6414—Aspects relating to the door of the microwave heating apparatus
- H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Electric Ovens (AREA)
Abstract
지역별 전압조건에 따라 연결되는 부품을 저전압으로 공용화하는 전자렌지 저전압회로에 관한 것으로, 종래 전자렌지 회로는 램프와 드라이브모터 및 팬모터를 지역별 전압조건에 따라 연결함으로써 원가절감을 저하시키는 문제점을 해결하기 위해, 본 발명은 램프와 드라이브모터 및 팬모터의 일측단을 고압변압기 1차측 코일의 중간단에 공통연결하며, 파워릴레이를 2차측 접지부위로 조정하여 부품의 공용화 및 원가절감을 할 수 있는 전자렌지 저전압회로에 관한 것이다.The present invention relates to a microwave low voltage circuit for commonizing a component connected to a low voltage according to a regional voltage condition. A conventional microwave circuit solves a problem of lowering cost reduction by connecting a lamp, a drive motor, and a fan motor according to a local voltage condition. In order to solve this problem, the present invention commonly connects one end of the lamp, the drive motor, and the fan motor to the middle end of the primary coil of the high-voltage transformer, and adjusts the power relay to the secondary grounding part to share the components and reduce costs. It relates to a range low voltage circuit.
Description
제1도는 종래 전자렌지의 회로도.1 is a circuit diagram of a conventional microwave oven.
제2도는 본 발명 실시예의 전자렌지 저전압회로도이다.2 is a microwave low voltage circuit diagram of an embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
P/R : 파워릴레이 M/R : 메인릴레이P / R: Power Relay M / R: Main Relay
MGT : 마그네트론 HVT : 고압변압기MGT: Magnetron HVT: High Pressure Transformer
L : 램프 F/M : 팬모터L: Lamp F / M: Fan Motor
D/M : 드라이브모터D / M: Drive Motor
본 발명은 전자렌지 저전압회로에 관한 것으로서, 더욱 상세하게는 지역별 전압조건에 따라 연결되는 부품을 저전압으로 공용화하며, 파워릴레이를 고압변압기의 2차측으로 조정하여 부품의 안정화를 유지하는 저전압회로에 관한 것이다.The present invention relates to a low voltage circuit of a microwave, and more particularly, to a low voltage circuit for sharing a component connected according to a local voltage condition to a low voltage, and adjusting a power relay to a secondary side of a high voltage transformer to maintain the stability of the component. will be.
일반적으로, 전자렌지는 마그네트론에서 발생된 전자파를 가열실내에서 분산시켜 식품분자의 운동을 유발함에 따라 음식물을 골고루 익게 한 것으로, 가열시간이 짧고 영양소의 파괴를 방지하여 본래의 맛과 색깔을 유지토록 하는 특성이 있다.In general, microwaves are used to cook foods evenly by dispersing the electromagnetic waves generated in the magnetron in the heating chamber to induce the movement of food molecules.The heating time is short and prevents the destruction of nutrients to maintain the original taste and color. There is a characteristic.
제1도는 종래 전자렌지의 회로도로서, 조리실내를 밝히는 램프(L)와, 조리실내의 음식물 냄새를 제거하기 위한 팬을 구동하는 팬모터(F/M)와, 조리접시가 설치된 회전축을 구동하는 드라이브모터(D/M)와, 출력을 조절하는 파워릴레이(P/R)와, 도어개폐 및 조리 유무에 따라 상기 램프 및 팬을 구동시키는 메인릴레이(M/R)와, 1차측의 전압을 2차측의 고압으로 승압시키는 고압변압기(HVT) 및 고주파 발진관인 마그네트론(MGT) 등으로 구성된다.1 is a circuit diagram of a conventional microwave oven, and includes a lamp L that illuminates a cooking chamber, a fan motor F / M for driving a fan for removing food odors in the cooking chamber, and a rotating shaft on which a cooking plate is installed. Drive motor (D / M), power relay (P / R) to regulate the output, main relay (M / R) to drive the lamp and fan according to the door opening and closing and cooking, and the voltage on the primary side And a high pressure transformer (HVT) for boosting the secondary pressure to a high pressure, and a magnetron (MGT), which is a high frequency oscillation tube.
위의 종래 전자렌지의 회로도에 있어서, 상기 램프(L)와 드라이브모터(D/M) 및 팬모터(F/M)는 지역별 전압에 따라 회로에 연결되며, 파워레벨에 따라 출력을 조절하는 상기 파워릴레이(P/R)는 고압변압기(HVT)의 1차측에 연결되어 있었다.In the circuit diagram of the conventional microwave oven, the lamp (L), the drive motor (D / M) and the fan motor (F / M) is connected to the circuit according to the regional voltage, the output to adjust the output according to the power level The power relay (P / R) was connected to the primary side of the high voltage transformer (HVT).
즉, 도어가 오픈되어 음식물이 조리실내에 넣어지고 조리가 시작되면, 상기 메인릴레이(M/R)와 파워릴레이(P/R)의 스위치가 온된다. 이에 따라 상기 램프(L)와 드라이브모터(D/M) 및 팬모터(F/M)에 전류가 인가되며, 고압변압기에 전압이 유기되어 1차측의 전압을 2차측에 2100V의 고압으로 승압시키게 되며, 마그네트론(MGT)에 의해 2450MHz의 극초단파가 발진함으로써 전자렌지가 동작된다.That is, when the door is opened and food is put into the cooking chamber and cooking is started, the switches of the main relay M / R and the power relay P / R are turned on. Accordingly, current is applied to the lamp L, the drive motor D / M, and the fan motor F / M, and voltage is induced in the high voltage transformer to boost the voltage on the primary side to a high voltage of 2100 V on the secondary side. The microwave is operated by microwaves of 2450 MHz by the magnetron (MGT).
그러나, 종래 전자렌지의 회로는 램프와 드라이브모터 및 팬모터를 지역별 전압조건에 따라 연결됨으로써 부품의 공용화 및 원가절감을 저하시키는 문제점이 있었다.However, the circuit of the conventional microwave oven has a problem in that the common use of the components and cost reduction by connecting the lamp, the drive motor and the fan motor according to the regional voltage conditions.
본 발명은 상기와 같은 종래의 문제점을 감안하여 안출한 것으로서, 부품의 공용화를 실현할 수 있는 전자렌지의 저전압회로를 제공함을 목적으로 한다.The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a low voltage circuit of a microwave oven capable of realizing common parts.
이러한 본 발명의 목적은 램프와 드라이브모터 및 팬모터의 일측단을 고압변압기 1차측 코일의 중간단에 연결하며, 1차측의 파워릴레이를 2차측 접지부위로 조정함으로써 달성된다.This object of the present invention is achieved by connecting one end of the lamp, the drive motor and the fan motor to the intermediate end of the primary coil of the high-voltage transformer, and by adjusting the power relay on the primary side to the secondary ground.
이하, 본 발명 전자렌지 저전압회로의 실시예를 첨부된 도면에 의거하여 상세히 설명한다.Hereinafter, an embodiment of the microwave low voltage circuit of the present invention will be described in detail with reference to the accompanying drawings.
본 발명 실시예의 전자렌지 저전압회로도는, 제2도에 도시된 바와 같이, 램프(L)와, 드라이브모터(D/M)와, 팬모터(F/M)와, 조리시 온/오프하여 출력을 조절하는 파워릴레이(P/R)와, 조리실 도어의 개폐와 조리시작신호에 따라 접속되는 메인릴레이(M/R)와, 1차측에 전압을 인가하여 2차측에 2100V의 고압으로 승압시키는 고압변압기(HVT) 및 직류 전압이 가해지면 부속된 영구자석의 힘을 받아 2450MHz의 극초단파를 발진하는 마그네트론(MGT) 등으로 구성된다.Microwave low voltage circuit diagram of the embodiment of the present invention, as shown in Figure 2, the lamp (L), the drive motor (D / M), the fan motor (F / M), when cooking on and off output Power relay (P / R) to adjust the control, the main relay (M / R) connected according to the opening and closing of the cooking chamber door and the cooking start signal, and the high voltage to boost the voltage to 2100V on the secondary side by applying a voltage on the primary side It is composed of a magnetron (MGT) that emits microwaves of 2450MHz under the force of an attached permanent magnet when the transformer (HVT) and DC voltage are applied.
위의 실시예에 있어서, 전압이 인가되어 메인릴레이(M/R)가 온되면, 상기 램프(L)와 드라이브모터(D/M) 및 팬모터(F/M)에 전류가 인가되어 동작하게 된다. 이때, 상기 램프(L)의 일측단은 메인릴레이(M/R)와 스위치1(SW1) 사이에서 연결되며, 상기 드라이브모터(D/M)와 팬모터(F/M)의 일측단은 스위치1(SW1)로부터의 배선에 연결되며, 상기 램프(L)와 드라이브모터(D/M) 및 팬모터(F/M)의 다른 일측단은 1차측 코일의 중간단에 공통연결되어 상기 각 부품에 저전압이 인가된다.In the above embodiment, when the voltage is applied to the main relay (M / R) is turned on, current is applied to the lamp (L), the drive motor (D / M) and the fan motor (F / M) to operate. do. At this time, one end of the lamp (L) is connected between the main relay (M / R) and the switch 1 (SW1), one end of the drive motor (D / M) and the fan motor (F / M) is a switch 1 is connected to the wiring from SW1, and the other end of the lamp L, the drive motor D / M and the fan motor F / M is commonly connected to the intermediate end of the primary coil. Low voltage is applied to the
한편, 종래 고압변압기(HVT) 1차측에 접속되어 있던 파워릴레이(P/R)는 2차측의 접지부위로 조정된다.On the other hand, the power relay P / R, which was conventionally connected to the primary side of the high voltage transformer HVT, is adjusted to the ground portion of the secondary side.
즉, 파워레벨에 따라 동작하는 파워릴레이(P/R)를 종래대로 1차측에 연결할 경우 부품에 인가되는 전압이 파워릴레이(P/R)의 온/오프 동작에 따라 불안정하게 흐르게 되므로, 파워릴레이(P/R)를 2차측 접지부위로 조정함으로써 부품의 안정화를 꾀할 수 있다.That is, when the power relay P / R operating according to the power level is conventionally connected to the primary side, the voltage applied to the component flows unstable in accordance with the on / off operation of the power relay P / R. Stabilization of parts can be achieved by adjusting (P / R) to the secondary grounding part.
이상 설명한 바와 같이, 본 발명 전자렌지 저전압회로는 램프와 드라이브모터 및 팬모터의 일측단을 고압변압기 1차측 코일의 중간단에 공통연결하며, 파워릴레이를 2차측 접지부위에 연결함으로써 부품의 공용화와 안정화 및 원가절감에 효과가 있다. .As described above, in the microwave low voltage circuit of the present invention, one end of the lamp, the drive motor, and the fan motor are commonly connected to the middle end of the primary coil of the high voltage transformer, and the power relay is connected to the secondary ground to share the components. It is effective for stabilization and cost reduction. .
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960010966A KR0181619B1 (en) | 1996-04-12 | 1996-04-12 | Low voltage circuit of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960010966A KR0181619B1 (en) | 1996-04-12 | 1996-04-12 | Low voltage circuit of microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970070769A KR970070769A (en) | 1997-11-07 |
| KR0181619B1 true KR0181619B1 (en) | 1999-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960010966A KR0181619B1 (en) | 1996-04-12 | 1996-04-12 | Low voltage circuit of microwave oven |
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| Country | Link |
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| KR (1) | KR0181619B1 (en) |
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1996
- 1996-04-12 KR KR1019960010966A patent/KR0181619B1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970070769A (en) | 1997-11-07 |
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