KR950023219A - Cooling fan control method for low noise low noise range and low noise microwave oven - Google Patents

Cooling fan control method for low noise low noise range and low noise microwave oven Download PDF

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Publication number
KR950023219A
KR950023219A KR1019930028104A KR930028104A KR950023219A KR 950023219 A KR950023219 A KR 950023219A KR 1019930028104 A KR1019930028104 A KR 1019930028104A KR 930028104 A KR930028104 A KR 930028104A KR 950023219 A KR950023219 A KR 950023219A
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KR
South Korea
Prior art keywords
cooling fan
low noise
fan motor
temperature
rotational speed
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Application number
KR1019930028104A
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Korean (ko)
Inventor
이근형
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이헌조
엘지전자 주식회사
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Priority to KR1019930028104A priority Critical patent/KR950023219A/en
Publication of KR950023219A publication Critical patent/KR950023219A/en

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Abstract

본 발명은 저소음 전자레인지 및 저소음 전자레인지의 냉각팬 모터 제어방법에 관한 것으로, 배기가이드에 장착되어 피가열물이 마그네트론에 의해 가열됨에 따라 가열실로부터 배출되는 가스량을 감지하는 가스센서나 흡입 가이드에 장착되어 상기 마그네트론을 냉각시키는 냉각공기의 온도를 감지하는 온도센서를 구비하여, 상기 가스센서 또는 온도센서에 의해 감지된 결과, 즉 가열실 내부의 부하량에 따라 냉각팬 모터의 회전속도와 요리시간을 조절함으로써 부하량이 커서 요리시간이 길어지면 냉각팬 모터의 회전속도를 줄이고, 부하량이 작아 요리시간이 짧으면 냉각팬 모터의 회전속도를 증가시키는 방법으로 냉각팬 모터의 회전속도를 조절하기 때문에 소음을 42dB에서 35dB까지 감소시켜 쾌적한 사용환경을 제공할 수 있다.The present invention relates to a method for controlling a cooling fan motor of a low noise microwave oven and a low noise microwave oven. The present invention relates to a gas sensor or a suction guide mounted on an exhaust guide to sense an amount of gas discharged from a heating chamber as a heated object is heated by a magnetron. It is equipped with a temperature sensor for detecting the temperature of the cooling air to cool the magnetron, and the rotation speed and cooking time of the cooling fan motor according to the result detected by the gas sensor or the temperature sensor, that is, the load in the heating chamber By adjusting the load, if the cooking time is long and the cooking time is long, the speed of cooling fan motor is reduced and if the cooking time is small, the speed of cooling fan motor is controlled by increasing the speed of cooling fan motor. Can be reduced to 35dB to provide a comfortable environment.

Description

저소음 전자레인지 및 저소음 전자레인지의 냉각팬 제어방법Cooling fan control method for low noise and low noise microwave ovens

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 의한 저소음 전자레인지의 구성도,3 is a configuration diagram of a low noise microwave oven according to the present invention;

제4도는 제3도의 저소음 전자레인지의 냉각팬을 제어하기 위한 제1실시예의 동작 순서도,4 is an operational flowchart of a first embodiment for controlling the cooling fan of the low noise microwave oven of FIG.

제5도는 제3도의 저소음 전자레인지의 냉각팬 회전속도에 따른 마그네트론 온도특성도.5 is a magnetron temperature characteristic according to the cooling fan rotation speed of the low noise microwave oven of FIG.

Claims (5)

가열실(1)에 장착되어 피가열물(3)을 가열시키는 마그네트론(6)과, 상기 마그네트론(6) 및 발열전장부품을 냉각시켜주는 냉각팬을 구동시키는 냉각팬 모터(8)와, 외부에서 유입도는 공기를 가열실(1) 내로 안내하는 흡임가이드(4)와, 상기 흡입가이드(4) 내에 장착되어 상기 마그네트론(6)을 냉각시킨 공기의 온도를 감지하는 온도센서(9)와, 상기 온도센서(9)에서 감지된 온도를 마이크로 컴퓨터(12)으로 전송하는 온도검지회로부(15)와, 상기 가열실(1) 내의 피가열물(3)이 가열되면서 발생하는 가스를 외부로 배출시키는 배기가이드(5)와, 상기 배기가이드(5) 내에 장착되어 상기 피가열물(3)이 발생시킨 가스량을 감지하는 가스센서(10)와, 상기 가스센서(10)에서 감지된 온도를 마이크로 컴퓨터(12)로 전송하는 가스검지회로부(16)와, 사용자가 해동 및 조리를 위해 전자레인지를 동작하도록 조작하는 조작부(13)와, 상기 사용자의 조작과 상기 온도검지회로부(15) 또는 가스검지회로부(16)로부터 전송된 신호에 따라 제어신호를 발생하는 마이크로 컴퓨터(12)와, 상기 마이크로 컴퓨터(12)로부터 제어신호를 인가받아 마그네트론(6)과 회전테이블모터(7)를 구동시키는 구동회로부(11)와, 상기 마이크로 컴퓨터(12)로부터 제어신호를 인가받아 상기 냉각팬 모터(8)의 회전속도를 변화시키는 회전속도변환부(14)와, 상기 피가열물(3)을 회전시켜주는 회전테이블(2) 및 회전테이블 모터(7)로 구성된 것을 특징으로 하는 저소음 전자레인지.A magnetron 6 mounted to the heating chamber 1 to heat the heated object 3, a cooling fan motor 8 to drive a cooling fan to cool the magnetron 6 and the heat generating parts, and an external device The inflow rate at is a suction guide (4) for guiding air into the heating chamber (1), and a temperature sensor (9) mounted in the suction guide (4) for sensing the temperature of the air cooling the magnetron (6) and In addition, the temperature detection circuit unit 15 for transmitting the temperature sensed by the temperature sensor 9 to the microcomputer 12 and the gas generated while the heated object 3 in the heating chamber 1 is heated to the outside. An exhaust guide 5 for discharging the gas, a gas sensor 10 mounted in the exhaust guide 5 for sensing the amount of gas generated by the heated object 3, and a temperature detected by the gas sensor 10. The gas detection circuit unit 16 which transmits to the microcomputer 12, and the user for thawing and cooking An operation unit 13 for operating the range, a microcomputer 12 for generating a control signal in response to a user's operation and a signal transmitted from the temperature detection circuit unit 15 or the gas detection circuit unit 16; The driving circuit unit 11 receives the control signal from the microcomputer 12 to drive the magnetron 6 and the rotary table motor 7, and the cooling fan motor receives the control signal from the microcomputer 12. Low noise oven, characterized in that consisting of a rotational speed conversion unit (14) for changing the rotational speed of 8), a rotary table (2) and a rotary table motor (7) for rotating the heated object (3). 배기가이드(5)에 장착된 가스센서(10)에서 가열실내의 피가열물이 가열되어 그 크기에 따라 유출되는 배기량을 일정시간동안 반복하여 감지하여 저압값으로 변환시킨 감지전압값과 임의의 기준전압값을 비교하여 상기 감지전압값이 기준전압값을 넘는 신호의 수를 산출하는 과정과, 상기 기준전압값을 넘는 신호의 수에 따라 상기 냉각팬 모터(8)의 회전속도 및 요리시간을 변환시키는 과정으로 이루어진 것을 특징으로 하는 저소음 전자레인지의 냉각팬 제어방법.The sensing voltage value and an arbitrary reference value for which the heated object in the heating chamber is heated by the gas sensor 10 installed in the exhaust guide 5 and repeatedly sensed for a predetermined time and converted to a low pressure value. Comparing the voltage values to calculate the number of signals over which the sensed voltage exceeds the reference voltage value, and converting the rotational speed and cooking time of the cooling fan motor 8 according to the number of signals over the reference voltage value; Cooling fan control method of a low noise microwave oven, characterized in that consisting of a process for. 제2항에 있어서, 상기 감지전압값이 기준전압값을 넘는 신호의 수(n)가 3이하이면(n≤3), 상기 냉각팬 모터(6)의 회전속도는 2500rpm으로하고, 요리시간은 제1단계(t1)로 하며, 3초과 5미만이면 (3〈n≤), 상기 냉각팬 모터(8)의 회전속도는 2000rpm으로 하고, 요리시간은 제2단계(t2)로 하며, 5이상이면(n≥5) 냉각팬 모터(8)의 회전속도를 1500rpm으로 하고, 요리시간은 제3단계(t3)로 하는 것을 특징으로 하는 저소음 전자레인지의 냉각팬 제어방법.3. The rotational speed of the cooling fan motor 6 is set to 2500 rpm when the number n of signals whose detected voltage value exceeds the reference voltage value is 3 or less (n ≦ 3). If the first step (t1), if less than 3 and less than 5 (3 <n≤), the rotation speed of the cooling fan motor 8 is 2000rpm, cooking time is the second step (t2), 5 or more The cooling fan control method of the low noise microwave oven, characterized in that the rotational speed of the rear surface (n≥5) cooling fan motor (8) is 1500rpm, and the cooking time is a third step (t3). 흡입가이드(4)에 온도센서(9)를 장착하여 피가열물을 가열시키는 마그네트론(6)을 냉각시킨 바람의 온도를 일정시간동안 감지하는 과정과, 감지결과에 따라 냉각팬 모터(8)의 회전속도 및 구동시간을 변화시키는 과정으로 이루어진 것을 특징으로 하는 저소음 전자레인지 냉각팬 제어방법.The temperature sensor 9 is mounted on the suction guide 4 to detect the temperature of the wind cooled by the magnetron 6 that heats the heated object for a predetermined time, and according to the detection result of the cooling fan motor 8 Low noise microwave cooling fan control method comprising the process of changing the rotational speed and the driving time. 제4항에 있어서, 상기 감지온도가 180℃보다 크면(T〉180℃) 상기 냉각팬 모터(6)의 회전속도는 2500rpm으로하고, 요리시간은 제1단계(t1)로 하며, 감지온도가 150℃ 보다 180℃ 이하이면(150℃〈T≤180℃) 상기 냉각팬 모터(8)의 회전속도는 2000rpm으로 하고, 요리시간은 제2단계(t2)로 하며, 150℃ 이하이면(T≤150℃) 냉각팬 모터(8)의 회전속도를 1500rpm으로 하고, 요리시간은 제3단계(t3)로 하는 것을 특징으로 하는 저소음 전자레인지의 냉각팬 제어방법.The method of claim 4, wherein if the sensing temperature is greater than 180 ° C (T &gt; 180 ° C), the rotational speed of the cooling fan motor 6 is 2500 rpm, the cooking time is the first step (t1), and the sensing temperature is If the temperature is 180 ° C. or less than 150 ° C. (150 ° C. <T ≦ 180 ° C.), the rotation speed of the cooling fan motor 8 is 2000 rpm, and the cooking time is the second step (t2). 150 ° C.) Cooling fan control method for a low noise microwave oven, characterized in that the rotational speed of the cooling fan motor (8) is 1500rpm, the cooking time is a third step (t3). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930028104A 1993-12-16 1993-12-16 Cooling fan control method for low noise low noise range and low noise microwave oven KR950023219A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100503757B1 (en) * 2001-12-07 2005-07-26 삼성전자주식회사 Microwave oven and method of controlling thereof
KR20150132698A (en) * 2014-05-15 2015-11-26 쿠쿠전자주식회사 Cooling motor controlling apparatus for electric cooker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100503757B1 (en) * 2001-12-07 2005-07-26 삼성전자주식회사 Microwave oven and method of controlling thereof
KR20150132698A (en) * 2014-05-15 2015-11-26 쿠쿠전자주식회사 Cooling motor controlling apparatus for electric cooker

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