KR950014034B1 - Electronic range - Google Patents

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Publication number
KR950014034B1
KR950014034B1 KR1019930016840A KR930016840A KR950014034B1 KR 950014034 B1 KR950014034 B1 KR 950014034B1 KR 1019930016840 A KR1019930016840 A KR 1019930016840A KR 930016840 A KR930016840 A KR 930016840A KR 950014034 B1 KR950014034 B1 KR 950014034B1
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South Korea
Prior art keywords
preheating
temperature
time
heater
comparing
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KR1019930016840A
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Korean (ko)
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KR950006339A (en
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박원경
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엘지전자주식회사
구자홍
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Publication of KR950006339A publication Critical patent/KR950006339A/en
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Publication of KR950014034B1 publication Critical patent/KR950014034B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices

Abstract

The method for controlling preheating function of a microwave oven at a low voltage comprises: a time comparing step of storing a preheating temperature at a microcomputer, turning on a heater and a time counter and comparing the counted time of the time counter with a predetermined preheating time; a preheating ending step of completing the preheating if the temperature in the heating room reaches the preheating temperature in a predetermined preheating time; an error mode performing step of displaying an error if the preheating temperature does not reach a predetermined level after lapse of the predetermined preheating time; and a preheating completing step of checking the open of a door after the preheating ending step, turning off the heater if the door is open and processing to a next step.

Description

저전압시 전자레인지의 예열기능 제어방법How to control preheating function of microwave oven at low voltage

제 1 도 및 제 2 도는 종래 전자레인지의 장치 구성도.1 and 2 are device configuration diagrams of a conventional microwave oven.

제 3 도는 종래 전자레인지의 예열기능 제어방법에 대한 흐름도.3 is a flowchart illustrating a method of controlling a preheating function of a conventional microwave oven.

제 4 도는 본 발명 전자레인지의 장치 구성도.4 is a device configuration diagram of the present invention microwave oven.

제 5 도는 본 발명 저전압시 전자레인지의 예열기능 제어방법에 대한 흐름도.5 is a flowchart illustrating a method for controlling a preheating function of a microwave oven at low voltage according to the present invention.

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

5~7 : 히터 9 : 더미스터5 ~ 7: Heater 9: Dummyster

11 : 마이크로컴퓨터 1-1 : 타임카운터11: microcomputer 1-1: time counter

12 : 키입력부 13 :온도감지부12: key input unit 13: temperature sensing unit

14 : 히터구동부14: heater driving unit

본 발명은 전자레인지의 예열기능 제어에 관한 것으로, 특히 저전압 지역에서 일정시간이 경과하여도 설정한 예열온도에 도달하지 못할시엔 현재온도와 예열온도를 비교하여 일정수준 이상이면 예열이 다 된 것으로 간주하고 일정수준 이하이면 에러모드로 수행하는 저전압시 전자레인지의 예열기능 제어방법에 관한 것이다.The present invention relates to the control of the preheating function of a microwave oven. In particular, when a predetermined preheating temperature cannot be reached even after a certain time in a low voltage region, the preheating is considered to be over when the present temperature and the preheating temperature are compared to a predetermined level. And less than or equal to a certain level, the present invention relates to a method of controlling the preheating function of a microwave oven at a low voltage to be performed in an error mode.

종래 전자레인지의 장치 구성은, 제 1 도 및 제 2 도에 도시된 바와 같이, 요리선택 및 요리에 필요한 기타 조작을 위한 키입력부(2)와, 가열실(8)내의 온도를 감지하기 위한 온도감지부(3)와, 히터(5~7)를 가열하여 가열실(8)을 가열시키는 히터구동부(4)와, 예열가능하도록 각 부를 제어하는 마이크로컴퓨터(11)로 구성된다. 여기서, 히터(5~7)중에서 5는 상측히터, 6은 콘백션히터, 7은 하측히터이다.As shown in FIGS. 1 and 2, a conventional microwave oven has a key input unit 2 for cooking selection and other operations required for cooking, and a temperature for sensing a temperature in the heating chamber 8. The sensing part 3, the heater drive part 4 which heats the heating chamber 8 by heating the heaters 5-7, and the microcomputer 11 which controls each part so that a preheating is possible is comprised. Here, among the heaters 5-7, 5 is an upper heater, 6 is a convection heater, and 7 is a lower heater.

이와같이 구성된 종래의 기술에 있어서, 사용자가 키입력부(2)를 통하여 예열온도(Ts)를 설정하고 다시 키입력부(2)를 통해 동작키를 누르면 마이크로컴퓨터(1)는 가열실(8)이 예열온도(Ts)에 도달할때까지 히터구동부(4)를 통하여 히터(5-7)를 가열시킨다.In the conventional technique configured as described above, when the user sets the preheating temperature Ts through the key input unit 2 and presses the operation key through the key input unit 2 again, the microcomputer 1 preheats the heating chamber 8. The heaters 5-7 are heated through the heater driver 4 until the temperature Ts is reached.

이와아울러 상기 마이크로컴퓨터(1)는 더미스터(9)에 의한 온도를 감지하는 온도감지부(3)를 통하여 계속적으로 가열실(8)의 온도(T)를 읽고 이 온도(T)가 설정한 예열온도(Ts)에 도달했는지를 비교하여 설정한 예열온도(Ts)에 가열실(8)의 온도(T)가 도달했으면 그 다음 조리동작으로 넘어가게 된다.In addition to this, the microcomputer 1 continuously reads the temperature T of the heating chamber 8 through the temperature sensing unit 3 which senses the temperature by the dummyster 9 and sets the temperature T. When the temperature T of the heating chamber 8 reaches the preheat temperature Ts set by comparing whether the preheat temperature Ts has been reached, the process proceeds to the next cooking operation.

그리고 가열실(8)의 온도(T)가 설정한 예열온도(Ts)에 도달하지 않으면 계속적으로 히터(5~7)를 가열하는 예열동작을 하게 된다.When the temperature T of the heating chamber 8 does not reach the preset preheating temperature Ts, the preheating operation of continuously heating the heaters 5 to 7 is performed.

상기 동작에 대해 제 3 도에 도시된 흐름도를 참조하여 단계별로 살펴보면, 예열온도(Ts)를 저장한 후 히터(5-7)를 온시키고 그때의 온도를 감지하는 온도감지단계와, 이 온도감지단계에서 감지된 온도(T)가 예열온도(Ts)보다 크면 예열을 종료하고 크지 않으면 계속해서 온도감지단계를 수행하는 예열단계와, 이 예열단계 이후 도어열림이 감지되면 히터(5-7)를 오프하고 그 다음 동작을 수행하는 예열완료단계로 진행하여 나간다.Referring to the operation step by step with reference to the flow chart shown in Figure 3, the temperature sensing step of storing the preheating temperature (Ts), and then turns on the heater (5-7) and senses the temperature, and this temperature detection If the temperature T detected in the step is greater than the preheating temperature Ts, the preheating step is terminated. If the temperature T is not large, the preheating step is continuously performed. If the door opening is detected after the preheating step, the heater 5-7 is turned on. The process proceeds to the preheating completion stage which turns off and performs the next operation.

그러나 이와같은 종래기술에 있어서, 저전압 지역에서 예열온도를 높게 설정하였다면 오랜시간 동안 예열을 시켜도 가열실의 온도가 예열온도에 이르지 못하므로 사용자는 언제 그다음 동작을 시켜야 하는지 모르며, 조리시간이 길어지거나 전자레인지가 불량인 것으로 오인할 수 있는 문제점이 있었다.However, in this conventional technology, if the preheating temperature is set high in a low voltage region, the user does not know when to perform the next operation because the temperature of the heating chamber does not reach the preheating temperature even after preheating for a long time, and the cooking time becomes long or the electronic There was a problem that could be mistaken for a bad range.

따라서 종래의 문제점을 해결하기 위하여 본 발명은 저전압 지역에서 초기 설정한 예열온도에 가열실의 온도가 도달하지 못하더라도 예열온도의 일정수준에 도달하면 예열이 끝난것으로 판단하고 그다음 동작으로 넘어가도록 함으로써 조리시간을 단축하고 소비자 오인으로 인한 서비스콜을 방지할 수 있도록 한 저전압시 전자레인지의 예열기능 제어방법을 창안한 것으로, 이하 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Therefore, in order to solve the conventional problems, the present invention determines that preheating is over when the preheating temperature reaches a predetermined level even if the heating chamber temperature does not reach the preheating temperature initially set in the low voltage region, and then proceeds to the next operation. Invented a method of controlling the preheating function of the microwave oven at low voltage to shorten the time and prevent service calls due to consumer misunderstanding. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제 4 도는 본 발명 전자레인지의 장치 구성도로서 이에 도시한 바와 같이 요리 선택 및 기타 동작에 필요한 조작을 하기 위한 키입력부(12)와, 음식물을 넣고 조리할 수 있는 가열실내의 온도를 감지하는 온도감지부(13)와, 가열실을 가열하는 히터를 구동하는 히터구동부(14)와, 예열 및 요리시 각 부를 제어하며 타임카운터(1-1)를 갖는 마이크로컴퓨터(11)로 구성한다.4 is a device configuration diagram of the microwave oven according to the present invention, as shown therein, a key input unit 12 for performing operations required for cooking selection and other operations, and a temperature for sensing a temperature in a heating chamber in which food can be put and cooked. The sensing unit 13, a heater driving unit 14 for driving a heater for heating the heating chamber, and a microcomputer 11 for controlling each unit during preheating and cooking and having a time counter 1-1.

이와같이 구성된 본 발명의 작용 및 효과에 대하여 사용자의 키입력에 의해 예열온도를 설정하여 마이크로컴퓨터에 저장하고 히터 및 타임카운터를 온한 후, 상기 타임카운터의 카운트된 시간과 예열설정시간을 비교하는 시간비교단계와, 상기 시간비교단계에서 시간을 비교하여 예열설정시간내에 가열실의 온도가 예열온도에 도달하면 예열을 종료하는 예열종료단계와, 상기 시간비교단계의 예열설정시간이 초과할때 예열온도가 일정수준에 도달하지 못하면 에러를 표시하는 에러모드수행단계와, 상기 예열종료단계 이후 도어의 열림을 체크하여 도어가 열릴경우 히터를 오프하고 다음 동작을 수행하는 예열완료단계로 이루어지는 흐름도를 참조하여 상세히 설명하면 다음과 같다.With respect to the operation and effect of the present invention configured as described above, the preheating temperature is set by the user's key input, stored in the microcomputer, the heater and the time counter are turned on, and the time comparison is performed to compare the counted time of the time counter with the preheating setting time. And a preheating termination step of terminating preheating when the temperature of the heating chamber reaches a preheating temperature within the preheating setting time by comparing the time in the step of comparing the time and the preheating temperature when the preheating setting time of the time comparing step is exceeded. If it does not reach the predetermined level, the error mode execution step of displaying an error, and after the preheating end step checks the opening of the door to open the door when the door is opened, the preheating completion step of performing the next operation in detail with reference to the flowchart The explanation is as follows.

사용자가 키입력부(12)를 통하여 예열온도(Ts)를 설정하고 동작키를 누르면 마이크로컴퓨터(11)는 예열온도(Ts)를 메모리에 저장하고 타임카운터(1-1)를 온시킴과 동시에 온도감지부(13)를 통하여 읽혀진 가열실의 온도(T)가 예열온도(Ts)에 이르도록 히터를 가열한다.When the user sets the preheating temperature Ts through the key input unit 12 and presses the operation key, the microcomputer 11 stores the preheating temperature Ts in the memory and turns on the time counter 1-1 and at the same time. The heater is heated so that the temperature T of the heating chamber read through the sensing unit 13 reaches the preheating temperature Ts.

그러면 상기 마이크로컴퓨터(11)는 온도감지부(13)를 통하여 계속적으로 가열실의 온도(T)를 읽고오는 도중 타임카운터(1-1)에 의해 카운트된 시간(T)이 예열시간(ts)을 초과하면 가열실의 온도(T)와 예열온도(Ts)의 일정수준(nTs)을 비교하여 상기 가열실의 온도(T)가 예열온도(Ts)의 일정수준(nTs) 이상이면 예열을 종료하고 도어열림이 있으면 히터를 오프하고 그다음 동작을 하도록 한다. 그리고 예열시간(ts)이 지나고 예열온도(Ts)의 일정수준(nTs)에 이르지 못하면 히터를 오프하고 에러모드를 수행한 후 그다음 동작을 행한다.Then, while the microcomputer 11 continuously reads the temperature T of the heating chamber through the temperature sensing unit 13, the time T counted by the time counter 1-1 is preheating time ts. When the temperature exceeds the predetermined temperature (nTs) of the heating chamber temperature (T) and the preheating temperature (Ts), the preheating is terminated when the temperature (T) of the heating chamber is above the predetermined level (nTs) of the preheating temperature (Ts). If there is a door open, turn off the heater and perform the next operation. When the preheating time ts has passed and does not reach a predetermined level nTs of the preheating temperature Ts, the heater is turned off, an error mode is performed, and the next operation is performed.

또한 예열시간(ts)이 지나지 않은 상태에서 가열실의 온도(T)가 예열온도(Ts)에 도달했으면 예열이 종료되었음을 알리고 도어 열림을 감지한 후 그다음 동작을 수행한다.In addition, if the temperature T of the heating chamber reaches the preheating temperature Ts in a state in which the preheating time ts has not passed, the preheating is terminated, the door opening is detected, and the next operation is performed.

이상에서 동작한 과정에 대해 제 5 도에 도시한 흐름도를 참조하여 단계별로 살펴보면, 키입력부(12)를 통해 예열온도(Ts)를 설정하여 마이크로컴퓨터(11)에 저장하고 히터 및 타임카운터(1-1)를 온한 후, 상기 타임카운터(1-1)의 시간(t)과 예열설정시간(ts)을 비교하는 시간비교단계와, 상기 시간비교단계에서 시간을 비교하여 예열설정시간(ts)내에 가열실의 온도(T)가 예열온도(Ts)에 도달하면 예열을 종료하는 예열종료단계와, 상기 시간비교단계의 예열설정시간(ts)이 초과할때 예열온도(Ts)가 일정수준에 도달하지 못하면 에러를 표시하는 에러모드수행단계와, 상기 예열종료단계 이후 도어의 열림을 체크하여 도어가 열릴경우 히터를 오프하고 다음 동작을 수행하는 예열완료단계로 이루어져 진행하여 나아간다.Referring to the process of operation described above with reference to the flowchart shown in FIG. 5, the preheating temperature Ts is set through the key input unit 12, stored in the microcomputer 11, and the heater and the time counter 1 -1), the time comparison step of comparing the time t of the time counter 1-1 with the preheating setting time ts and the preheating setting time ts by comparing the time in the time comparing step The preheating termination step of terminating preheating when the temperature T of the heating chamber reaches the preheating temperature Ts within the preheating stage, and the preheating temperature Ts at a predetermined level when the preheating setting time ts of the time comparison step is exceeded. If it does not reach, an error mode is performed to display an error, and after the preheating termination step, the door is opened, and when the door is opened, the heater is turned off and the preheating completion step is performed.

이상에서 상세히 설명한 바와같이 본 발명은 저전압 지역에서 일정시간이 경과하여도 설정한 예열온도에 도달하지 못하면 현재 온도와 예열온도를 비교하여 일정수준 이상이면 예열이 다된것으로 하고 일정수준 이하이면 에러모드를 수행하므로써 저전압 지역에서의 조리시간 단축과 소비자의 오인으로 인해 서비스를 요청하는 것을 방지하도록 한 효과가 있다.As described in detail above, the present invention compares the present temperature with the preheating temperature if the preset preheating temperature is not reached even after a predetermined time elapses in the low voltage region. By doing so, it is possible to prevent a request for service due to a short cooking time in a low voltage area and a mistake of a consumer.

Claims (1)

예열온도(Ts)를 설정하여 마이크로컴퓨터(11)에 저장하고 히터 및 타임카운터(1-1)를 온한 후, 상기 타임카운터(1-1)의 카운트된 시각(t)과 예열설정시간(ts)을 비교하는 시간비교단계와, 상기 시간비교단계에서 비교결과 예열설정시간(ts)내에 가열실의 온도(T)가 예열온도(Ts)에 도달하면 예열을 종료하는 예열종료단계와, 상기 시간비교단계의 예열설정시간(ts)이 초과할때 예열온도(Ts)가 일정수준에 도달하지 못하면 에러를 표시하는 에러모드수행단계와, 상기 예열종료단계 이후 도어의 열림을 체크하여 도어가 열릴경우 히터를 오프하고 다음 동작을 수행하는 예열완료단계로 이루어짐을 특징으로 하는 저전압시 전자레인지의 예열기능 제어방법.After setting the preheating temperature Ts and storing it in the microcomputer 11 and turning on the heater and the time counter 1-1, the counted time t and the preheating setting time ts of the time counter 1-1. ) Pre-heating step of comparing the time and the pre-heating step of terminating preheating when the temperature T of the heating chamber reaches the preheating temperature Ts within the preheating preset time ts as a result of the comparison in the time comparing step; When the preheating setting time ts of the comparison step is exceeded, if the preheating temperature Ts does not reach a certain level, an error mode execution step of displaying an error and a door opening after checking the opening of the door after the preheating termination step A preheating control method for a microwave oven at low voltage, characterized in that the preheating completion step of turning off the heater and performing the next operation.
KR1019930016840A 1993-08-27 1993-08-27 Electronic range KR950014034B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017171B1 (en) * 2009-03-17 2011-02-25 동양매직 주식회사 Electric Oven and the Method for Operating the Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017171B1 (en) * 2009-03-17 2011-02-25 동양매직 주식회사 Electric Oven and the Method for Operating the Same

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KR950006339A (en) 1995-03-20

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