KR100186416B1 - Temperature control method of microwave oven - Google Patents
Temperature control method of microwave oven Download PDFInfo
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- KR100186416B1 KR100186416B1 KR1019960016142A KR19960016142A KR100186416B1 KR 100186416 B1 KR100186416 B1 KR 100186416B1 KR 1019960016142 A KR1019960016142 A KR 1019960016142A KR 19960016142 A KR19960016142 A KR 19960016142A KR 100186416 B1 KR100186416 B1 KR 100186416B1
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
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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
- H05B6/68—Circuits for monitoring or control
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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
- H05B6/647—Aspects related to microwave heating combined with other heating techniques
- H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
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- Electromagnetism (AREA)
- Control Of Temperature (AREA)
- Electric Ovens (AREA)
Abstract
본 발명은 전자레인지의 온도 제어방법에 관한 것으로, 종래의 설정온도에 따라 히터를 구동시키는 방법은 온도편차가 크고, 온도별로 특정시간 히터를 온/오프시키는 방법은 어느 한 셋트만을 장시간 시험을 하여 시험 데이터를 구하고, 이를 기준으로 온도제어를 하는 것이기 때문에, 셋트간 호환이 안되는 문제점이 있었다. 본 발명은 상기 종래의 문제점을 해결하기 위해 설정온도와 현재온도의 차가 N도 이상인가를 판단하여 N도 이상이면 히터를 풀타임으로 온 시키는 제1단계와; 상기 설정온도와 현재온도의 차가 N도 이하이면 설정온도와 현재온도가 같은적이 있는가를 판단하여 같은적이 없으면 주기적으로 히터를 온/오프 시키는 제2단계와; 상기 제2단계에서 판단결과 같은적이 있으면 설정온도가 현재온도 보다 높은가를 판단하여 설정온도가 낮으면 히터를 오프시키는 제3단계와; 상기 제2단계의 판단결과 설정온도가 현재온도보다 높고, 현재온도가 하강중이면 히터를 주기적으로 온/오프시키고, 상승중이면 히터를 오프시키는 제4단계로 이루어진 전자레인지의 온도 제어방법을 창안한 것으로, 이와같이 잠열로 인한 과도한 온도상승부분을 감안하여 설정온도와 차이가 소정온도차가 되면 이를 기준으로 히터의 온/오프를 제어하도록 함으로써 온도편차가 적고, 정확한 온도 제어를 할 수 있는 효과가 있다.The present invention relates to a method for controlling a temperature of a microwave oven, and a method of driving a heater according to a conventional set temperature has a large temperature deviation, and a method of turning on / off a heater for a specific time for each temperature is performed by testing only one set for a long time. Since the test data is obtained and the temperature is controlled based on this, there is a problem that the sets are not compatible. The present invention provides a first step of determining whether the difference between the set temperature and the present temperature is more than N degrees to turn on the heater full time when the difference between the set temperature and the present temperature is more than N degrees; If the difference between the set temperature and the present temperature is equal to or less than N degrees, determining whether the set temperature and the present temperature are the same; A third step of determining whether the set temperature is higher than the present temperature if the determination result is the same in the second step, and turning off the heater when the set temperature is low; As a result of the determination in the second step, a temperature control method of the microwave oven, comprising a fourth step of turning on / off the heater periodically and turning off the heater when the current temperature is lower than the present temperature and the current temperature is falling, In this case, in consideration of the excessive temperature rise due to latent heat, if the difference between the set temperature and the predetermined temperature difference by controlling the on / off of the heater based on this, there is a small temperature deviation, there is an effect that can be precise temperature control. .
Description
제1도는 종래 전자레인지의 온도 제어방법에 따른 온도조절 상태를 나타낸 그래프.1 is a graph showing a temperature control state according to a temperature control method of a conventional microwave oven.
제2도는 본 발명의 온도 제어방법에 따른 온도조절 상태를 나타낸 그래프.2 is a graph showing a temperature control state according to the temperature control method of the present invention.
제3도는 본 발명의 온도 제어 동작을 나타낸 동작 흐름도.3 is an operation flowchart showing a temperature control operation of the present invention.
본 발명은 전자레인지의 온도 제어방법에 관한 것으로, 특히 잠열로 인한 급격한 온도상승 부분을 감안하여 설정온도와 현재온도의 차이가 소정온도 이상이면 히터를 풀타임으로 온 시키고, 소정온도 이내이면 주기적으로 히터를 구동함으로써 온도편차를 줄일 수 있어 일정온도를 안정되게 유지할 수 있도록 한 전자레인지의 온도 제어방법에 관한 것이다.The present invention relates to a temperature control method of a microwave oven, in particular, in consideration of a sudden temperature rise due to latent heat, if the difference between the set temperature and the present temperature is more than a predetermined temperature, the heater is turned on in full time, periodically within a predetermined temperature The present invention relates to a temperature control method of a microwave oven capable of reducing a temperature deviation by driving a heater to maintain a constant temperature.
일반적으로 전자레인지의 온도 제어방법은 설정온도와 오븐내의 현재 온도를 비교해서 설정온도가 높으면 히터를 구동시키고, 설정온도가 낮으면 히터의 구동을 멈추게 하는 방법을 사용한다.In general, the temperature control method of the microwave oven uses a method of comparing the set temperature with the present temperature in the oven and driving the heater when the set temperature is high, and stopping the driving of the heater when the set temperature is low.
다른 방법으로는 온도상승시간을 감안하여 온도별로 특정시간 히터를 온/오프 시키는 방법이 있는데, 이 방법은 장시간 시험한 시험데이터를 기준으로 온도 제어를 해야만 한다.Another method is to turn on / off the heater for a specific time in consideration of the temperature rise time. This method requires temperature control based on the test data tested for a long time.
그런데 상기에서 설정온도에 따라 히터를 구동시키는 방법은 온도편차를 줄이는데 불리하다. 특히 연속요리의 경우 현재온도가 높은 상태에서 단지 설정온도보다 현재온도가 낮다고하여 히터를 풀타임으로 구동시킨다면 갑자기 온도가 높아져서 설정온도와 차이가 심하게 난다.However, the method of driving the heater according to the set temperature in the above is disadvantageous in reducing the temperature deviation. In particular, in the case of continuous cooking, if the current temperature is high and the current temperature is lower than the set temperature, and the heater is driven full time, the temperature suddenly increases and the difference is significantly different from the set temperature.
또한 온도별로 특정시간 히터를 온/오프시키는 방법은 어느 한 셋트만을 장시간 시험을 하여 시험 데이터를 구하고, 이를 기준으로 온도제어를 하는 것이기 때문에, 셋트간 호환이 안되는 문제점이 있었고, 일반적으로 히터위치와 온도센서의 위치는 특정한 곳으로 정해져 있기 때문에, 이를 감안하여 기구적인 설계가 불편하였으며, 히터 및 온도센서의 위치가 조금이라도 틀려지면 온도편차가 크게 발생하는 문제점이 있었다.In addition, the method of turning on / off the heater for a specific time for each temperature has a problem of incompatibility between the sets because the test data is obtained by performing only one set of tests for a long time and controlling the temperature based on the test data. Since the position of the temperature sensor is determined to be a specific place, mechanical design was inconvenient in consideration of this, and if the position of the heater and the temperature sensor is slightly different, there is a problem that a large temperature deviation occurs.
본 발명의 목적은 상기 종래의 문제점을 해결하기 위해 설정온도와 현재온도의 차가 소정온도차 이상이면 히터를 풀타임으로 온시키고, 소정 온도 이내이면 히터구동을 주기적으로하며, 이후 현재온도가 설정온도보다 높으면 히터의 구동을 멈추고, 낮으면 현재온도의 상승/하강에 따라 주기적으로 제어함으로써 온도편차를 줄일 수 있는 전자레인지의 온도 제어방법을 제공하는데 있다.An object of the present invention is to solve the conventional problems, if the difference between the set temperature and the current temperature is more than a predetermined temperature difference, the heater is turned on full time, if the heater temperature is within a predetermined temperature periodically, since the current temperature is greater than the set temperature The present invention provides a temperature control method of a microwave oven that can reduce the temperature deviation by stopping the driving of the heater when it is high and periodically controlling the rising / falling of the current temperature.
상기 본 발명의 목적을 달성하기 위한 전자레인지의 온도 제어방법은 설정온도와 현재온도의 차가 N도 이상인가를 판단하여 N도 이상이면 히터를 풀타임으로 온 시키는 제1단계와; 상기 설정온도와 현재온도의 차가 N도 이하이면 설정온도와 현재온도가 같은적이 있는가를 판단하여 같은적이 없으면 주기적으로 히터를 온/오프 시키는 제2단계와; 상기 제2단계에서 판단결과 같은적이 있으면 설정온도가 현재온도 보다 높은가를 판단하여 설정온도가 낮으면 히터를 오프시키는 제3단계와; 상기 제2단계의 판단결과 설정온도가 현재온도보다 높고, 현재온도가 하강중이면 히터를 주기적으로 온/오프시키고, 상승중이면 히터를 오프시키는 제4단계로 이루어진 것을 특징으로 한다.The temperature control method of the microwave oven for achieving the object of the present invention includes a first step of determining whether the difference between the set temperature and the current temperature is more than N degrees, and if the heater is more than N degrees to turn on the heater full time; If the difference between the set temperature and the present temperature is equal to or less than N degrees, determining whether the set temperature and the present temperature are the same; A third step of determining whether the set temperature is higher than the present temperature if the determination result is the same in the second step, and turning off the heater when the set temperature is low; As a result of the determination of the second step, the set temperature is higher than the present temperature, and if the present temperature is falling, the heater is periodically turned on / off, and if the rising step is characterized in that it comprises a fourth step of turning off the heater.
이하, 본 발명의 작용 및 효과에 관하여 종래 온도 제어방법에 따른 온도조절 상태를 나타낸 그래프인 제1도와, 본 발명의 온도 제어방법에 따른 온도조절 상태를 나타낸 그래프인 제2도와, 본 발명의 온도조절 동작과정을 나타낸 제3도를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, with respect to the operation and effect of the present invention a first diagram showing a temperature control state according to the conventional temperature control method, a second diagram showing a temperature control state according to the temperature control method of the present invention, the temperature of the present invention Referring to Figure 3 showing the adjustment operation process in detail as follows.
먼저, 종래에는 제1도에 도시한 바와같이 현재온도(t0)가 설정온도(t)보다 높으면 히터는 항상 오프되고, 반대로 현재온도(t0)가 설정온도(t)보다 낮으면 히터는 풀타임으로 온된다.First, as shown in FIG. 1, the heater is always turned off when the present temperature t0 is higher than the set temperature t. On the contrary, when the present temperature t0 is lower than the set temperature t, the heater is full time. Comes on.
이런 방법으로 히터를 제어하면 설정온도에 도달하는 시간은 짧을지 모르나 온도편차(d)는 대단히 크게 나타난다.If the heater is controlled in this way, the time to reach the set temperature may be short, but the temperature deviation d is very large.
특히 연속가열시에는 초기온도가 높기 때문에 히터를 풀타임으로 가열하게 되면 상기와 같은 문제가 발생하게 되는 것이다.In particular, since the initial temperature is high during continuous heating, such a problem occurs when the heater is heated in full time.
그러나 본 발명에서는 제2도에 도시한 바와같이 설정온도(t)를 설정하고 현재온도(t0)를 감지하여 설정온도(t)와 현재온도(t0) 차를 구하고, 그 차가 N도 이상이면(A구간) 히터를 풀타임으로 구동시켜 설정온도에 빨리 도달할 수 있도록 한다.However, in the present invention, as shown in FIG. 2, the set temperature t is set and the present temperature t0 is sensed to obtain a difference between the set temperature t and the present temperature t0. Section A) Run the heater full time so that the set temperature is reached quickly.
그리고 온도가 점점 상승하여 온도차가 N도 이내이면(B구간) 이때부터는 히터를 주기적으로 온/오프(예를들어 5초온 5초오프)시켜 급격한 온도상승을 막는다.If the temperature increases gradually and the temperature difference is within N degrees (Section B), the heater is periodically turned on / off (for example, 5 seconds to 5 seconds off) to prevent a sudden temperature rise.
이후, 현재온도(t0)가 설정온도(t)보다 커지면 히터를 오프시키고, 다시 온도가 하강하여 설정온도(t)보다 낮아지면 이때부터는 현재온도가 하강중이면 히터를 주기적으로 온/오프시키고, 반대로 현재온도가 상승중이면 히터를 오프시킨다.Then, when the current temperature (t0) is greater than the set temperature (t), the heater is turned off, and if the temperature is lowered again and lower than the set temperature (t), from this time, if the current temperature is falling, the heater is periodically turned on / off, On the contrary, if the present temperature is rising, turn off the heater.
이렇게 히터를 온도차와 상승/하강에 따라 미세제어 함으로써 종래에는 크게 나타나던 편차를 줄일 수 있게 된다.By finely controlling the heater in accordance with the temperature difference and the rise / fall in this way it is possible to reduce the deviation that was largely shown in the prior art.
제3도는 본 발명의 온도 제어 동작을 나타낸 동작 흐름도로써, 제1단계에서는 설정온도(t) - 현재온도(t0) N이면, 히터를 풀온시켜 온도를 빠른 시간내에 목표온도까지 끌어올린다.3 is an operation flowchart showing the temperature control operation of the present invention. In the first step, if the set temperature t-the present temperature t0 N, the heater is pulled on to raise the temperature to the target temperature in a short time.
제2단계에서는 설정온도(t) - 현재온도(t0) N이면, 설정온도(t)와 현재온도(t0)가 같은적이 있는가를 판단하여 같은적이 없으면 히터를 주기적으로 온/오프시켜 목표온도 주위에서는 히터 제어를 주기적으로 함으로써 급격한 온도상승을 막는다.In the second step, if the set temperature (t) is equal to the present temperature (t0) N, it is determined whether the set temperature (t) and the present temperature (t0) are the same. Periodic heater control prevents rapid temperature rise.
제3단계에서는 상기 제2단계에서 설정온도(t)와 현재온도(t0)가 같은적이 있고, 설정온도(t)가 현재온도(t0)보다 작으면 히터를 오프시킨다.In the third step, the set temperature t and the present temperature t0 have been the same in the second step, and the heater is turned off when the set temperature t is smaller than the present temperature t0.
제4단계에서는 설정온도(t)가 현재온도(t0)보다 크고 현재온도가 상승중이면 히터를 오프시키고, 하강중이면 히터를 주기적으로 온/오프시킨다.In the fourth step, when the set temperature t is greater than the present temperature t0 and the present temperature is rising, the heater is turned off, and when it is falling, the heater is periodically turned on / off.
이때, 상기 제4단계에서 온도상승/하강 순간을 따로 제어하는 이유는 N도 범위내에서 온도상승중에 히터를 온시키면 온도의 급격한 증가의 우려가 있기 때문이다.In this case, the reason for controlling the temperature rise / fall moments separately in the fourth step is that there is a fear of a sudden increase in temperature when the heater is turned on during the temperature rise within the N degree range.
이상에서 상세히 설명한 바와같이 본 발명은 잠열로 인한 과도한 온도상승부분을 감안하여 설정온도와 차이가 소정온도차가 되면 이를 기준으로 히터의 온/오프를 제어하도록 함으로써 온도편차가 적고, 정확한 온도 제어를 할 수 있는 효과가 있다.As described in detail above, the present invention allows the on / off of the heater to be controlled on the basis of the excessive temperature rise due to the latent heat when the difference from the set temperature is a predetermined temperature difference, so that accurate temperature control can be performed. It can be effective.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1019960016142A KR100186416B1 (en) | 1996-05-15 | 1996-05-15 | Temperature control method of microwave oven |
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| KR100186416B1 true KR100186416B1 (en) | 1999-03-20 |
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| KR1019960016142A KR100186416B1 (en) | 1996-05-15 | 1996-05-15 | Temperature control method of microwave oven |
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| Country | Link |
|---|---|
| KR (1) | KR100186416B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100518445B1 (en) * | 2003-07-18 | 2005-09-29 | 엘지전자 주식회사 | Apparatus for controlling of micro wave oven and method thereof |
| CN114637231A (en) * | 2020-12-16 | 2022-06-17 | 广东美的厨房电器制造有限公司 | Cooking device, control method thereof and computer readable storage medium |
-
1996
- 1996-05-15 KR KR1019960016142A patent/KR100186416B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970075697A (en) | 1997-12-10 |
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