KR820002362Y1 - Temperature control circuit for pressure kettle - Google Patents

Temperature control circuit for pressure kettle Download PDF

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Publication number
KR820002362Y1
KR820002362Y1 KR2019810004598U KR810004598U KR820002362Y1 KR 820002362 Y1 KR820002362 Y1 KR 820002362Y1 KR 2019810004598 U KR2019810004598 U KR 2019810004598U KR 810004598 U KR810004598 U KR 810004598U KR 820002362 Y1 KR820002362 Y1 KR 820002362Y1
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KR
South Korea
Prior art keywords
temperature
circuit
control circuit
temperature control
relay
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KR2019810004598U
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Korean (ko)
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강정희
김창선
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강정희
김창선
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Priority to KR2019810004598U priority Critical patent/KR820002362Y1/en
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Publication of KR820002362Y1 publication Critical patent/KR820002362Y1/en

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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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

내용 없음.No content.

Description

압력 전기밥솥의 전기회로Electric circuit of pressure rice cooker

제1도는 본 고안의 전기회로도.1 is an electric circuit diagram of the present invention.

제2도는 PTC와 써미스타의 저항특성도.2 is a resistance characteristic diagram of PTC and thermistor.

본 고안은 압력 전기밥솥의 전기회로에 관한 것으로, 열감지능력이 예민한 정열급변저항(PTC) 회로를 사용하여 필요이상의 온도상승없이 일정온도에 동작토록 하여 압력솥에 있어서 수증기의 유출이 없이 솥 내부가 정압을 자동 유지 조절케 하므로서 수증기 유출에 의한 열손실(전력소비)를 절약할 수 있도록 구성된 것이다.The present invention relates to an electric circuit of a pressure electric rice cooker, using a thermostatic resistance resistor (PTC) circuit that has a sensitive heat sensing ability to operate at a constant temperature without a temperature rise more than necessary, so that the inside of the pot is free of water vapor in the pressure cooker. It is designed to save heat loss (power consumption) due to water vapor leakage by automatically maintaining and adjusting the static pressure.

종래의 압력밥솥의 온도조절은 써미스타(부열변저항) 감온소자 또는 바이매탈등을 사용하였으나, 이들은 온도감지능력에 예민하지 못하며, 따라서 밥솥내의 압력조절은 배기변의 추를 이용하여 조절하도록 되어 배기증기로 인한 열손실이 많은, 즉 전력소모가 큰 결점이 있었던 것이다.Conventional temperature control of the pressure cooker used thermistor (heat resistance) thermostat element or bimetal, but they are not sensitive to the temperature sensing ability, so the pressure control in the rice cooker is controlled by using the weight of the exhaust valve exhaust There were many drawbacks due to the high heat loss from the steam, ie power consumption.

본 고안은 종래의 압력밥솥의 결점을 시정하고 배기변의 추는 일정하게 하고 밥솥저면 열원을 PTC 회로로 예민하게 감지하여 필요이상의 온도상승을 방지, 솥내부압력을 일정하게 자동 조절하도록 한 것으로 첨부 회로도면에 의하여 상세히 설명하면 다음과 같다.The present invention corrects the defects of the conventional pressure cooker, makes the weight of the exhaust valve constant, and sensitively detects the cooker bottom heat source with PTC circuit to prevent temperature rise more than necessary, and to automatically adjust the internal pressure of the pot constantly. When described in detail as follows.

전원스위치 SW를 ON 하고 타이머 시한보륨 VR2를 설정한 후 누름스위치 S,T,S를 눌러 ON 하게 되면 전원부는 교환스위치 SW1이 110V용 결선의 경우는 히이터 H1및 H2는 병열연결되고 220V 결선의 경우는 히이터 H1및 H2는 직열로 연결 통전됨과 동시에 변압기 TF에서 소요전압으로 강하시켜 정류회로 PT1에서 교류를 직류로 정류하여 타이머회로 PT3및 정열급변저항(PCT)회로 PT2의 전자제어회로를 가동케 하여 PCT 회로(PT2)의 릴레이(Ry1)과 타이머회로(PT3)의 릴레이(Ry2)가 작동하여 전체회로가 연결되어 히이터(H1) 및 (H2)를 가열하게 되고 누름스위치 S,T,S를 OFF 시켜도 가열은 계속된다.If after ON the power switch SW, and set the timer time limit Bohrium VR 2 to ON by pressing the push switch S, T, S is a power supply switch SW 1 is switched for connection 110V In the case of heaters H 1 and H 2 are connected in parallel and 220V connection In the case of heaters H 1 and H 2 are connected and energized in series and at the same time, the voltage is reduced from the transformer TF to the required voltage to rectify AC to the DC in the rectifier circuit PT 1 , so that the timer circuit PT 3 and the PCT circuit PT 2 by Kane operating the electronic control circuit PCT circuits (PT 2) a relay (Ry 1) and the timer circuit relay is an overall circuit connection (Ry 2) is operating the heater (H 1) and (H 2) of the (PT 3) Is heated and heating continues even if push switch S, T, S is turned OFF.

히이타 H1또는 H2가 방열하여 솥을 가열하고 일정온도로 상승하면 열감지소자인 정열급변저항(PTC)은 제2도에서 보는 바와 같이 일정설정온도에서 급격히 저항이 상승하는 특성이 있어 열감지소자(PTC)의 저항의 급격한 증가로 통전전류가 급격히 변화(감소)하고 트란지스타(TR1)의 베이스 전위변화로 릴레이(Ry1)이 동작(차단)하게 되어 히이타 H1또는 H2의 전류를 차단하게 된다.Hi itaconic H 1 or H 2, a thermally by heating the pot, and rises to a predetermined temperature rapidly changing staggered design warmth consumption resistance (PTC) is a thermal paper It is characteristic to sharply resistance rises at a certain set temperature, as shown in FIG. 2 is the element is rapidly changed (decreased) energizing current to the sudden increase in resistance (PTC) and a relay (Ry 1) the operation (block) to the base potential change of the tran G-Star (TR 1) Hi itaconic H 1 or H 2 It will cut off the current.

이로 인하여 열감지소자(PCT)의 온도가 일정온도 이하로 되면 자체의 전기저항이 급격히 하강하여 다시 전류가 흘러 트란지스타(Tr1)가 트리거하여 릴레이(Ry1)을 다시 접속되어 히이타 H1또는 H2들 다시 가열하데 된다.Therefore, when the temperature of the thermal sensing element (PCT) is below a certain temperature, its own electrical resistance drops sharply and current flows again, causing the transistor Star (Tr 1 ) to trigger and reconnect the relay (Ry 1 ) so that the heater H 1 Or H 2 again.

이와 같은 동작의 반복으로 솥의 온도를 일정온도로 유지하여 준다. 그리고 한편 상기한 열감지소자(PCT)가 처음으로 일정설정온도에 도달하여 저항의 증가로 트란지스타(Tr2)의 베이스B 전위에 변화를 주므로서 트란지스타(Tr2)의 (C) 전위의 변화로 타이머회로(PT3)에 트리거하여 타이머의 (IC1) 및 (IC2)가 동작을 시작하여 시한보륨(VR2)의 값에 의한 시한에 도달하면 트란지스타(Tr3),(Tr4)가 동작 릴레이 Ry2를 차단 동작하여 전체회로의 전류를 차단하게 되고 모든 기능이 정지되며, 즉 취사를 완료하는 것이다.By repeating this operation, the temperature of the pot is maintained at a constant temperature. On the other hand, the above-described thermal sensing element (PCT) first reaches a predetermined set temperature and changes the base B potential of the transistor star (Tr 2 ) with the increase in resistance, thereby reducing the potential of the (C) potential of the transistor star (Tr 2 ). Trigger on the timer circuit (PT 3 ) with a change, and when the timer's (IC 1 ) and (IC 2 ) start operation and reach the time limit by the value of the time volume (VR 2 ), the transistors (Tr 3 ) and (Tr 4 ) cuts off the operation relay Ry 2 to cut off the current of the entire circuit and stops all functions, that is, to complete cooking.

이상과 같이 본 고안의 압력밥솥 전기회로는 온도감지회로에 정열급변저항(PTC)을 사용하여 일정설정온도에서의 저항의 급증에 의한 전위변화를 예민하게 감지하여 릴레이(Ry1)을 동작케 하여 일정한 온도로 가열유지케 하고 타이머회로(PT3)를 (PTC)회로 (PT2)와 연결하여 (PTC)가 최초로 일정온도에 도달함을 감지하여 동작을 지령하도록 하므로서 설정된 시간동안 타이머를 동작시켜 릴레이(Ry2)를 동작(차단)하도록 하여 전체회로의 기능을 정지토록 하여 일정한 취사온도에 소요시간 유지시키므로서 취사를 완성토록 하므로서 본 고안 회로는 필요이상으로 온도가 상승되지 않고 정밀한 일정온도에서 동작 유지되므로 수증기의 배기유출이 없이 솥내부를 일정 압으로 유지하게 되어 수증기 유출로 인한 열손실, 즉 전력소모를 절약하게 된다.As described above, the pressure cooker electric circuit of the present invention uses a constant temperature sudden resistance (PTC) in the temperature sensing circuit to sensitively detect a potential change due to a sudden increase in resistance at a predetermined set temperature to operate the relay Ry 1 . It keeps heating at a constant temperature and connects timer circuit (PT 3 ) with (PTC) circuit (PT 2 ) to detect the first time that (PTC) reaches a certain temperature and to command the operation. The circuit designed to complete the cooking by maintaining the required time at a certain cooking temperature by stopping the function of the entire circuit by operating the relay (Ry 2 ), thus keeping the required time at a certain cooking temperature. Since the operation is maintained, the inside of the pot is maintained at a constant pressure without the exhaust leakage of steam, thereby saving heat loss due to steam leakage, that is, power consumption.

또한 종래의 압력밥솥은 온도제어가 정확치 못하여 필요이상으로 가열되고 과잉증기는 뚜껑상의 배기변의 추를 조절배기하도록 되었고 사용 부주위시는 사고발생 우려가 있으나, 본 원은 배기변의 추는 일정히 하고 저면의 열원을 정확히 자동 조절 정압을 유지하도록 되어 사용상 편리하고 안전한 등의 이점이 있는 것이다.In addition, the conventional pressure cooker is heated more than necessary because the temperature control is inaccurate and the excess steam is to control and exhaust the weight of the exhaust valve on the lid and there is a risk of accidents in the case of unused use, but the main source is to keep the weight of the exhaust valve constant and the heat source of the bottom Precise automatic pressure control is maintained so that it is convenient and safe to use.

Claims (1)

도시한 바와 같이 히이터(H1),(H2)의 열을 (PT2)회로의 (PTC)(포지스타)가 감지하여 릴레이(Ry1)를 동작시켜 히이터의 온도를 제어하여 일정 온도로 유지함과 동시에 타이머 회로(PT3)의 (IC1,IC2)가 설정시간에 릴레이 Ry2를 작동시켜 열원을 OFF 하도록 한 압력전기 밥솥의 온도제어 회로.As shown, (PTC) of the (PT 2 ) circuit detects the heat of the heater (H 1 ) and (H 2 ) and operates the relay (Ry 1 ) to control the temperature of the heater to a constant temperature. The temperature control circuit of the pressure electric cooker which maintains and turns off the heat source by activating the relay Ry 2 at the set time (IC 1 , IC 2 ) of the timer circuit PT 3 .
KR2019810004598U 1981-06-26 1981-06-26 Temperature control circuit for pressure kettle KR820002362Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019810004598U KR820002362Y1 (en) 1981-06-26 1981-06-26 Temperature control circuit for pressure kettle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019810004598U KR820002362Y1 (en) 1981-06-26 1981-06-26 Temperature control circuit for pressure kettle

Publications (1)

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KR820002362Y1 true KR820002362Y1 (en) 1982-11-03

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KR2019810004598U KR820002362Y1 (en) 1981-06-26 1981-06-26 Temperature control circuit for pressure kettle

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KR (1) KR820002362Y1 (en)

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