KR920007092Y1 - Control circuit used timer for electric rice cooker - Google Patents

Control circuit used timer for electric rice cooker Download PDF

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Publication number
KR920007092Y1
KR920007092Y1 KR2019900012265U KR900012265U KR920007092Y1 KR 920007092 Y1 KR920007092 Y1 KR 920007092Y1 KR 2019900012265 U KR2019900012265 U KR 2019900012265U KR 900012265 U KR900012265 U KR 900012265U KR 920007092 Y1 KR920007092 Y1 KR 920007092Y1
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South Korea
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timer
cooking
switch
terminal
contact
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KR2019900012265U
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Korean (ko)
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KR920003934U (en
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김용선
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상농기업 주식회사
권사영
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    • 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
    • A47J27/56—Preventing boiling over, e.g. of milk
    • A47J27/62—Preventing boiling over, e.g. of milk by devices for automatically controlling the heat supply by switching off heaters or for automatically lifting the cooking-vessels
    • 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
    • A47J27/004—Cooking-vessels with integral electrical heating means
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/32—Time-controlled igniting mechanisms or alarm devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1951—Control of temperature characterised by the use of electric means with control of the working time of a temperature controlling device

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Cookers (AREA)

Abstract

내용 없음.No content.

Description

타이머를 이용한 전기보온밥솥의 전원제어 및 동작인지회로Power control and motion recognition circuit of electric warm rice cooker using timer

제1도는 종래의 회로도.1 is a conventional circuit diagram.

제2도는 본 고안에 따른 회로도.2 is a circuit diagram according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

SW : 보온·취사 선택스위치 SW1, SW1-1: 동시접점스위치SW: Insulation and cooking selector switch SW 1 , SW 1-1 : Simultaneous contact switch

T : 타이머부 H1, H2: 보온 및 취사용 발열체T: Timer section H 1 , H 2 : Heating and cooking heating element

L1, L2: 보온 및 위사 표시램프 14 : 타이머 표시램프L 1 , L 2 : Insulation and weft indicator lamp 14: Timer indicator lamp

본 고안은 타이머를 이용한 전기보온밥솥의 전원제어 및 동작인지회로, 더욱 상세하게는 2개의 동시접점릴레이를 갖는 타이머를 채용함에 의해, 전기보온밥솥의 전원을 제어함과 아울러 예약취사시 동작확인을 용이하게 인지토록한 전기보온밥솥의 전원제어 및 동작인지 회로에 관한 것이다.The present invention adopts a power control and operation recognition circuit of the electric insulation rice cooker using a timer, and more specifically, by using a timer having two simultaneous contact relays, the electric insulation rice cooker controls the power and checks the operation during reservation. The present invention relates to a power control and operation recognition circuit of an electric thermal cooker.

종래 타이머를 이용한 전기보온밥솥은 제1도에 표시한 바와같이, 취사·보온 선택스위치(SW')및 타이머부(T')의 타이머 접점 스위치(SW')의 가동단자(C') 및 (C1')는 전원부(E')에 접속되어 있고, 상기스위치(SW') 및 (SW1')의 보온용단자(d')와 고정단자(NC')는, 보온표시램프(L1')와 보온용 발열체(H1')의 공통접점(B')과, 취사 표시램프(L2')와 취사용 발열체(H2')의 공통접점(D')에 접속되며, 상기 보온취사선택스위치(SW')의 취사단자(e')는 타이머(t')의 일측과 공통으로 되어 보온 및 취사표시램프(L1')(L2')와 보온 및 취사용 발열체(H1')(H2')의 공통접점(A')에 접속되고, 타이머(t')의 타측단은 타이머 접점 스위치(SW1')의 고정단자(NO')에 접속된 구성으로 되어 있다.In the conventional thermal insulation rice cooker using the timer, as shown in FIG. 1, the operation terminal C 'of the cooking / thermal insulation selection switch SW' and the timer contact switch SW 'of the timer unit T' and ( C 1 ′ is connected to the power supply unit E ′, and the heat insulating terminal d ′ and the fixed terminal NC ′ of the switches SW ′ and SW 1 ′ are heat insulating display lamps L 1. ') And the common contact (B') of the heating element (H 1 ') and the cooking lamp (L 2 ') and the common contact (D ') of the heating element (H 2 ') for cooking, The cooking terminal e 'of the selector switch SW' is common to one side of the timer t ', and keeps warm and cooking indicator lamps L 1 ' and L 2 'and heat and cooking elements H 1 '. is connected to the "common contact point (a in), the timer (t ') (H 2), the other end of the timer contact switch (SW 1" is in a configuration connected to the fixed terminal (NO,) in).

따라서, 예약취사를 할때 타이머(t') 작동시 전원부(E')로 부터 전원이 인가되면, 타이머 접점스위치(SW1')의 가동단자(C1')는 고정단자(NO')측으로 연결되어 타이머(t')의 모우터(M')를 동작되게 하고, 이어 보온·취사 선택스위치(SW')의 가동단자(C')를 취사단자(e')와 연결되게 누르면 타이머(t')의 타이머 표시램프(L3')가 점등된다.Therefore, when the power from the timer (t ') Operating power supply (E') to the reservation cooking is applied, 'the movable terminal (C 1 a), the timer contact switch (SW 1) "is the side of the fixed terminal (NO,) Connected to cause the motor M 'of the timer t' to be operated, and then pressing the movable terminal C 'of the thermal insulation / cooking selection switch SW' to be connected to the cooking terminal e ', the timer t ')' Timer display lamp (L 3 ') is turned on.

그러나, 보온·취사 선택스위치(SW')를 가동단자(C')와 취사용단자(e')와 연결되게끔 누르지 않으면, 그 스위치(SW')는 항상 가동단자(C')가 보온용 단자(D')와 연결된 상태로 되어 보온상태로 있게 되므로, 타이머(t')표시램프(L3')는 점등되지 않고 보온표시램프(L1')만 점등된 상태로 있게 된다.However, unless the thermal insulation / cooking selector switch SW 'is pressed so as to be connected to the movable terminal C' and the cooking terminal e ', the switch SW' is always provided with the movable terminal C 'as a thermal insulation terminal. Since it is connected to (D ') and is in a warm state, the timer (t') display lamp (L 3 ') is not turned on, only the warm display lamp (L 1 ') is turned on.

그러므로, 타이머(t')를 동작시킨 상태에서는 보온·취사 선택스위치(SW')의 가동단자(C')가 취사용단자(e')와 연결되게끔 선택하지 않으면, 항상 보온표시램프(L1')가 점등된 상태로 있는다.Therefore, "the state in which operation the insulation, eclectic switch (SW Timer (t)" operation of the) terminal (C ') a cooking terminal (e' is not selected gekkeum is connected with), always lagging indicator lamp (L 1 ') Stays lit.

따라서, 타이머를 이용하여 필요시간후에 취사를 할 경우에는, 원하는 시간만큼 시간을 설정후 반드시 취사측으로 되게끔 선택스위치를 조작해야만 나중에 타이머의 작동이 완료됨과 아울러 취사로 되는 것이 일반적인 사실인데, 종래에는 보온표시램프가 항시 점등되어 있는 관계로 사용자들은 자칫 잘못하면 보온표시램프를 취사표시램프가 점등되어 있는 것으로 오인하여 보온·취사 선택스위치를 취사측으로 연결되게끔 조작하는 것을 잃어버리게 되어 타이머의 동작완료후에도 취사가 실행되지 않게 된다고 하는 문제가 있었다.Therefore, when cooking after the required time using the timer, it is common to set the time as desired and operate the selector switch to the cooking side to complete the operation of the timer later and to cook. Since the warmth display lamp is on all the time, users misunderstand that the warmth display lamp is turned on because the warmth display lamp is turned on and loses the operation to connect the warmth / cooking selection switch to the cooking side even after the timer is finished. There was a problem that cooking was not performed.

본 고안은 상기 문제점을 해소키 위하여 안출한 것으로, 한쌍의 동시접점 스위치를 갖는 타이머를 이용함에 의해, 전원제어와 아울러 필요시간을 설정한 예약 상태에서는 전원이 인가되지 않게하여 어떠한 램프(보온·취사 및 타이머 표시램프)도 점등되지 않도록 하므로써 사용자가 이를 인지 확인함에 의해, 사용자들로부터의 오인, 혼동을 사전에 예방토록 한 잇점을 제공함에 있다.The present invention was devised to solve the above problems, and by using a timer having a pair of simultaneous contact switches, the power was not supplied in the reserved state in addition to the power control and required time, so that any lamp (warm and cook) And the timer display lamp) are also turned on so that the user checks whether the user is aware of the problem.

즉, 본 고안은 보온·취사 선택스위치와 타이머의 타이머 접점 스위치 일측단은 전원부에 접속하고, 타측단은 보온 및 취사 표시램프와 보온 및 취사용 발열체의 공통접점에 접속된 회로구성으로 보온 및 취사를 하도록 된 전기밥솥에 있어서, 상기 보온·취사 선택스위치와 공통 접점사이에는 2개의 동시접점 스위치를 갖는 타이머를 접속하되, 보온 및 취사 표시램프와 보온 및 취사용 발열체의 공통접점과 보온·취사 선택스위치와의 사이에는 타이머 일측과 공통으로 되는 동시 접점스위치 하나를 접속하고, 또하나의 동시접점스위치는 보온표시램프 및 발열체의 공통접점과 보온·취사 선택스위치의 사이에 개재하여 접속하며, 타이머의 타측은 취사표시램프 및 발열체의 공통접점과 공통으로 하여 전원부에 접속되게 구성한 것이다.In other words, the present invention is to maintain the insulation and cooking with a circuit configuration connected to the heat insulation and cooking selection switch and one end of the timer contact switch of the timer connected to the power supply, and the other end is connected to the common contact between the heat and cooking indication lamp and the heat and cooking heating element. In the electric rice cooker, a timer having two simultaneous contact switches is connected between the heat retaining and cooking selection switch and the common contact, and the common contact of the warming and cooking indication lamp and the warming and cooking heating element, and the warming and cooking selection switch and One simultaneous contact switch which is common to one side of the timer is connected between, and another simultaneous contact switch is connected between the common contact of the keep warm display lamp and the heating element and the keep warm / cook selection switch, and the other side of the timer It is configured to be connected to the power supply unit in common with the common contact point of the cooking display lamp and the heating element.

이하, 첨부된 도면에 의거 본 고안의 기술구성 및 작용효과를 상술(詳述)하면 다음과 같다. 다음 실시예에 의거 본 고안이 결코 한정되는 것은 아니다.Hereinafter, the technical configuration and the effect of the present invention based on the accompanying drawings in detail (詳述) as follows. The present invention is by no means limited to the following examples.

제1도와 동일부분에 대해서는 동일부호로 표시하였다.The same parts as in FIG. 1 are indicated by the same reference numerals.

제2도는 본 고안에 따른 회로도를 예시한 것으로, 대별(大別)하면 전원부(E)(110V 및 220V겸용)에 연결되는 보온·취사 선택스위치(SW)및 2개의 동시 접점스위치(SW1)(SW1-1)를 갖는 타이머(t)로 된 타이머부(T)와, 타이머부(T)에 공통으로 접속되는 보온 및 취사 표시램프(L1)(L2)와, 보온 및 취사용 발열체(H1)및 (H2)로 구성된다. 이를 좀더 구체적으로 설명하면, 보온·취사 선택스위치(SW)와 타이머부(T)의 일측은 전원부(E)에 연결되며, 타측은 보온 및 취사표시램프(L1)(L2)와 보온 및 취사용발열체(H1)(H2)의 공통접점(A)(B)(D)에 접속하여 된 전기보온밥솥의 회로에 있어서, 상기 보온·취사 선택스위치(SW)와 공통접점(A)(B)(D)와의 사이에는 2개의 동시 접점 스위치(SW1)(SW1-1)를 갖는 타이머(t)로된 타이머부(T)를 개재하여 접속하고, 상기 보온·취사 선택스위치(SW)의 취사용단자(e)와 공통접점(B)과의 사이에는 상기 타이머(t)일측과 공통으로된 접점스위치(SW1)를 접속함과 아울러, 상기 보온용단자(d)와 공동접점(B)와의 사이에는 접점스위치(SW1-1)를 각각 접속하여, 상기 접점스위치(SW1) (SW1-1)들을 상호 연동되게 하며, 또한 상기 타이머(t)의 타측은 공통접점(D)과 공통으로 하여 전원부(E)에 접속시킨 것에 의해, 전기밥솥의 예약취사시 취사 동작 상태를 쉽게 확인할 수 있도록 한 것이다.Figure 2 illustrates a circuit diagram according to the present invention, largely, the thermal insulation and cooking selection switch (SW) and two simultaneous contact switches (SW 1 ) connected to the power supply unit E (for both 110V and 220V). Timer part T made of timer t having SW 1-1 , thermal insulation and cooking indication lamps L 1 and L 2 connected in common to timer portion T, and thermal insulation and cooking heating elements And (H 1 ) and (H 2 ). In more detail, one side of the heat retaining and cooking selection switch SW and the timer unit T is connected to the power supply unit E, and the other side of the heat keeping and cooking display lamps L 1 and L 2 is kept warm. In the circuit of the electric heating rice cooker connected to the common contact point (A) (B) (D) of the cooking heating element (H 1 ) (H 2 ), the warming and cooking selection switch (SW) and the common contact point (A) ( B) (D) between, the two simultaneous contact switch (SW 1) (connected to, the insulation-eclectic switch via a timer unit (T) to the timer (t) having a SW 1-1) (SW with The contact switch (SW 1 ) common to one side of the timer (t) is connected between the cooking terminal (e) and the common contact point (B) of the c), and the thermal contact terminal (d) and the common contact ( The contact switch SW 1-1 is connected to each other between B and the contact switch SW 1 (SW 1-1 ), and the other side of the timer t is connected to the common contact D. In common with) By having access to the moped (E), which will make it easier to check the cooking operation state at the time of reservation of cooking rice cooker.

도면중 미설명 부호인(F)은 퓨우즈를, (L3)는 타이머 표시램프를, (M)은 타이머 작동모우터를, (R1∼R4)는 저항을, (S)는 온도접점스위치를, (SW2)(SW3)(SW4)는 110 또는 220V선택 스위치를 각각 표시한 것이다.In the figure, (F) denotes a fuse, (L 3 ) denotes a timer display lamp, (M) denotes a timer operating motor, (R 1 to R 4 ) denotes resistance, and (S) denotes a temperature. (SW 2 ) (SW 3 ) and (SW 4 ) indicate the 110 or 220V selection switch, respectively.

상기와 같은 구성에 의한 본 고안의 작용효과는 다음과 같다. 예약취사를 할때 시간을 설정하면 상호 연동되는 접점스위치(SW1)(SW1-1)의 가동단자(C1)및 (C2)가 고정단자(NO1)및 (NO2)에 동시에 연결되며, 상기스위치(SW1)의 가동단자(C1)와 고정단자(NO1)가 연결된다. 하지만 이때 보온·취사 선택스위치 (SW)의 가동단자(C)는 보온용단자(d)측으로 접속되어 있으므로 타이머(t)작동모우터(M)가 작동되지 않으며 타이머 표시램프(L)도 점등되지 않는 상태가 된다. 따라서 가동단자(C)를 취사용단자(e)축으로 접속시켜야만 타이머⒯의 작동모우터(M)가 동작됨과 아울러 타이머 표시램프(L3)가 점등 되어 타이머(t)가 동작중임을 알려준다.Effects of the present invention by the configuration as described above are as follows. If you set the time when making a reservation, the movable terminals (C 1 ) and (C 2 ) of the contact switch (SW 1 ) (SW 1-1 ) that are interlocked with each other are simultaneously fixed to the fixed terminals (NO 1 ) and (NO 2 ). is connected, the movable terminal (C 1) and the fixed terminal (NO 1) of the switch (SW 1) is connected. However, at this time, since the operating terminal C of the thermal insulation / cooking selection switch SW is connected to the thermal insulation terminal d, the timer (t) operation motor (M) does not operate and the timer display lamp (L) does not light up. It does not become a state. Therefore, only when the operating terminal (C) is connected to the take-up terminal (e) axis, the operating motor (M) of the timer 동작 and the timer display lamp (L 3 ) is turned on to indicate that the timer (t) is in operation.

따라서 평상시에는 가동단자(c)가 보온용단자(d)측과 접점된 상태로 있는 보온·취사 선택스위치(SW)의 가동단자(c)를 취사용단자(e)축으로 접점되게 선택한다.Therefore, normally, the movable terminal c of the thermal insulation and cooking selection switch SW in which the movable terminal c is in contact with the thermal insulation terminal d side is selected to be brought into contact with the cooking terminal e axis.

이후, 타이머(t)의 동작이 완료되면 동시접점스위치(SW1)(SW1-1)의 가동단자(C1) 및 (C2)가 고정단자(NC1)및 (NC2)에 연결된다. 그러면, 보온·취사 선택스위치(SW)의 가동단자(c)가 아미 취사용단자(e)에 연결되어져 있던바, 취사표시램프(L2)가 점등되면서 취사용발열체(H2)에 의해 취사가 실행된다. 취사가 완료되면 온도감지에 의해 보온·취사선택스위치(SW)의 가동단자(c)는 보온용단자(d)측으로 자동전환되어 연결됨과 아울러 보온표시램프(L1)가 점등되고 이어 보온용 발열체(H1)가 발열되어 보온상태로 된다.After the operation of the timer t is completed, the movable terminals C 1 and C 2 of the simultaneous contact switch SW 1 (SW 1-1 ) are connected to the fixed terminals NC 1 and NC 2 . do. Then, the movable terminal (c) of the thermal insulation / cooking selector switch (SW) is connected to the arm cooking terminal (e). The cooking display lamp (L 2 ) lights up and cooking is performed by the cooking heating element (H 2 ). do. When cooking is completed, the operating terminal (c) of the heat retaining / cooking selection switch (SW) is automatically switched to the heat retaining terminal (d) side by means of temperature sensing, and the heat insulating display lamp (L 1 ) is turned on, followed by a heat generating element for warming. (H 1 ) generates heat and keeps warm.

일정한 보온 온도의 유지를 위해 온도접점스위치(S)를 사용하여 온도를 조정함으로써 보온상태가 지속되게한다.In order to maintain a constant warming temperature by using the temperature contact switch (S) to adjust the temperature to maintain the warm state.

이러한 상태에서 종래의 경우는 제1도에 표시한 바와같이, 예약취사를 할시 타이머(t')로 시간을 설정했을때 보온·취사선택스위치(SW')를 조작하여 가동단자(c')가 취사측으로 연결되게 하지 않아도 가동단자(c')가 평상시 보온용 단자(d')측과 접점된 상태이므로, 타이머 접점스위치(SW')의 가동단자(C1')와 고정단자(NO')의 연결에 의해 항시 보온표시램프(L1')가 점등된 상태로 된다. 하지만, 본 고안은 예약취사를 위해 시간을 설정한 상태에서는 동시 접점스위치(SW1)(SW1-1)의 가동단자(C1)및 (C2)와 고정단자(NO1)및 (NO2)가 연결됨과 아울러, 보온·취사 선택스위치(SW)의 가동단자(c)가 보온용 단자(d)측으로 연결되어 있으므로 전원이 차단된 상태가 되어 보온 및 취사, 타이머표시램프(L1)(L2)(L3)어느것도 점등되지 않는다. 따라서, 사용자들은 각 램프에 전원이 차단된 상태를 인지하고 확인하여 보온·취사선택스위치(SW)를 취사측으로 연결한다. 즉 스위치(SW)의 가동단자(c)를 취사용 단자(e)축으로 접점되게 조작하여 예약시간이 끝난후에는 즉시 취사가 행하여 질 수 있도록 하였으며, 아울러 동시 접점스위치(SW1) (SW1-1)의 작동으로 콘센트에 플럭을 꽂은 채로 전원을 제어할 수가 있는 효과가 있다.In this state, in the conventional case, as shown in FIG. 1, when the time is set by the timer t 'at the time of reservation cooking, the operation terminal c' is operated by operating the heat retaining and cooking selection switch SW '. Even if it is not connected to the cooking side, the movable terminal (c ') is normally in contact with the warming terminal (d') side, and therefore, the movable terminal (C 1 ') and the fixed terminal (NO') of the timer contact switch (SW '). By means of the connection, the warm-up display lamp (L 1 ') is always lit. However, according to the present invention, when the time is set for the reserved cooking, the movable terminals C 1 and (C 2 ) and the fixed terminals NO 1 and (NO) of the simultaneous contact switch SW 1 (SW 1-1 ) are set. 2) is connected and at the same time, thermal insulation, because the movable terminal (c) of the cooking selection switch (SW) is connected to the side of insulating terminal (d) for the the power is cut off state thermal insulation and self contained, the timer indicator light (L 1) None of (L 2 ) (L 3 ) lights up. Therefore, the user recognizes and checks the state that the power is cut off to each lamp, and connects the heat retaining and cooking selection switch SW to the cooking side. In other words, by operating the switch (c) of the switch (SW) to the contact terminal (e) shaft to be cooked immediately after the reservation time, and simultaneously contact switch (SW 1 ) (SW 1- The operation of 1 ) has the effect of controlling the power supply with the plug plugged into the outlet.

이상과 같이 본 고안은 듀알(DUAL)의 동시 접점스위치를 갖는 타이머를 채용함에 의해, 종래 예약취사를 할시 타이머의 동작이 끝났음에도 불구하고 보온표시램프가 항시 점등되어 있는 관계로 인해, 사용자들로 하여금 취사가 진행되고 있는 줄 알고 그대로 방치하게 되는 오인, 혼동요인을 사전에 예방하여, 예약취사시에는 이를 인지하고 확인함에 의해 정확한 취사가 이루어지도록 한 특장(持張)을 갖는 고안이다.As described above, the present invention employs a timer having a dual contact switch of DUAL, so that the thermal display lamp is always on even though the timer is over when the conventional reservation is made. It is devised to have a special feature that prevents misunderstandings and confusion factors that are left undisputed as it is being cooked, and recognizes and confirms them when making reservations.

Claims (1)

보온·취사 선택스위치(SW')와 타이머부(T')의 일측은 전원부(E')에 연결하고, 타측단은 보온 및 취사표시램프(L1)(L2)와 보온 및 취사용 발열체(H1')(H2')의 공동접점(A')(B')(D')에 접속하여 된 전기보온밥솥의 회로구성에 있어서, 상기 보온·취사선택스위치(SW)와 공통접점(A)(B)(D)의 사이에는 2개의 동시접점스위치(SW1) (SW1-1)를 갖는 타이머(t)로 된 타이머부(T)를 개재하여 접속하되, 상기 보온·취사 선택스위치의 취사용단자(e)와 공통접점(A)사이에는 타이머(t) 일측과 공통으로된 접점스위치(SW1)를, 보온용 단자(d)와 공통접점(B)사이에는 접점스위치(SW1-1)를 각각 접속하여 상호 연동되게 하고, 상기 타이머(t)의 타측은 공통접점(D)과 공통으로 하여 전원부에 접속시킨 것을 특징으로 하는 타이머를 이용한 전기보온밥솥의 전원제어 및 동작인지회로.One end of the heat retaining and cooking selector switch SW 'and the timer part T' is connected to the power supply E ', and the other end of the heat retaining and cooking selector lamp L 1 and L 2 and a heating and cooking heat generating element In the circuit configuration of the electric warm rice cooker connected to the common contact A '(B') (D ') of H 1 ') (H 2 '), the thermal insulation and cooking selection switch SW and the common contact ( A) (B) and (D) are connected via a timer part T consisting of a timer t having two simultaneous contact switches SW 1 (SW 1-1 ), and the above heat insulation / cooking selection is performed. The contact switch SW 1 which is common to one side of the timer t between the take-up terminal e of the switch and the common contact point A, and the contact switch SW between the heat-retaining terminal d and the common contact point B 1-1 ) are connected to each other, and the other side of the timer (t) is in common with the common contact (D) and the power control and operation of the electric thermal cooker using a timer, characterized in that connected to the power supply Circuit.
KR2019900012265U 1990-08-14 1990-08-14 Control circuit used timer for electric rice cooker KR920007092Y1 (en)

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KR920007092Y1 true KR920007092Y1 (en) 1992-10-02

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