KR960006270B1 - Fan motor control device for fan heater - Google Patents
Fan motor control device for fan heater Download PDFInfo
- Publication number
- KR960006270B1 KR960006270B1 KR1019930017704A KR930017704A KR960006270B1 KR 960006270 B1 KR960006270 B1 KR 960006270B1 KR 1019930017704 A KR1019930017704 A KR 1019930017704A KR 930017704 A KR930017704 A KR 930017704A KR 960006270 B1 KR960006270 B1 KR 960006270B1
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- KR
- South Korea
- Prior art keywords
- blower motor
- motor
- fan
- control
- predetermined time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0073—Arrangement or mounting of means for forcing the circulation of air
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본 발명이 적용한 회로도,1 is a circuit diagram to which the present invention is applied,
제 2 도는 제 1 도에 의한 송풍팬 구동 타임 챠트,2 is a blower fan driving time chart according to FIG.
제 3 도는 본 발명에 의한 송풍팬 구동 타임챠트3 is a blower fan driving time chart according to the present invention
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
1 : 마이컴 2 : 송풍모터구동부1: microcomputer 2: blown motor drive
3 : 전원공급부 FM : 모터3: power supply FM: motor
SSR : 무접점릴레이SSR: Solid State Relay
본 발명은 팬 히터의 송풍모터 제어회로에 관한 것으로, 특히 소화시 송풍팬을 구동하는 모터의 기동을 원할히 할수 있도록 하여준 팬히터의 송풍모터제어회로에 관한 것이다.The present invention relates to a blower motor control circuit of a fan heater, and more particularly to a blower motor control circuit of the fan heater to facilitate the starting of the motor driving the blower fan during fire extinguishing.
종래의 팬히터에 설치된 송풍모터는 몇 단계의 RPM을 가지고 구동할 수 있도록 하여 팬 히터의 점화, 연소 및 소화시 적절한 RPM단계로 구동시켜 양흐한 연소상태의 유지와 냄새저감의 효과를 얻도록 하고 있다.The blower motor installed in the conventional fan heater can be driven with a few steps of RPM so that the fan can be driven at an appropriate RPM stage when igniting, burning and extinguishing the fan heater to obtain various combustion conditions and to reduce odor. .
이와같은 송풍모터 제어에 있어, 특히 세트의 소화시에는 송풍모터를 일단 정지시키고 일정시간(예:10sec) 경과후에 다시 송풍모터를 소정시간(예:90sec) 구동시킨후 정지시키게 되는바, 여기서 상기 일정시간(10sec)의 송풍모터정지상태 유지는 소화시 발생되는 냄새(끄름)를 저감시키기 위한 제어 스텝이고, 상기소정시간(90sec) 동안의 송풍모터 재기동은 과열된 버너를 강제로 식혀주고 버너의 마지막 잠열을 방출시켜주기 위한 제어스텝이다.In the control of such a blown motor, in particular, when the set is extinguished, the blown motor is stopped once, and the blown motor is stopped again after a predetermined time (e.g., 90sec) after a predetermined time (e.g., 10sec). Maintaining the blown motor stop state for a predetermined time (10sec) is a control step to reduce the smell (slip) generated during extinguishing, and restarting the blown motor during the predetermined time (90sec) forcibly cools down the burner that is overheated This is a control step to release the last latent heat.
또한, 상기한 소정시간(90sec)동안의 송풍모터 재기동시에는 소비전력의 절감을 위하여 최소단계의 RPM(800)으로 송풍모터를 구동하였던바, 연소시 발생한 먼지나 기타 이물질들이 상기 송풍모터에 영향(삽입)을 주어 상기 최소단계의 모터구동력으로는 상기 송풍모터가 원할이 구동되지 않는 현상이 빈발하였고, 이와같은 현상의 잦은 반복은 숭풍모터의 불량률을 가일충 상승시켰으며, 이는 실제 필드상에서 소비자 클레임으로 제기되어왔다.In addition, when the blower motor is restarted for the predetermined time (90 sec), the blower motor is driven at the minimum RPM (800) to reduce power consumption. Therefore, dust and other foreign substances generated during combustion affect the blower motor. Given the (insertion), the phenomenon that the blowing motor is not driven by the minimum motor driving force is frequent, and the frequent repetition of this phenomenon has raised the defective rate of Soongpung motor even more. It has been filed as a claim.
본 발명은 상기 문제점을 해결하기 위하여 안출된 것으로, 팬히터의 소화시 송풍팬의 기동이 원할하도록 하여 송풍모터의 불량률을 감소시키고 동시에 소비전력을 절감하도록한 팬히터의 송풍모터 제어회로를 제공하는 것에 본 발명의 목적이 있다.The present invention has been made to solve the above problems, and to provide a fan motor control circuit of the fan heater to reduce the defect rate of the blower motor and at the same time to reduce the power consumption by making the fan fan start smoothly when the fan heater is extinguished. There is an object of the invention.
이와같은 목적을 달성하고자 본 발명은 무접점 릴레이를 이용하여 송풍모터의 RPM제어가 가능하도록한 송풍모터 구동부와, 운전 및 소화에 대한 일정 키명령을 마이컴으로 입력하여 주는 키 조작부와 상기 키조작부로부터 소화명령입력시 상기 송품모터 구동부로 소정시간(Tl)동안 송풍모터 정지, 소정시간(T2) 동안 송풍모터 최대 RPM 구동, 소정시간(T3)동안 송풍모터 최소 RPM 구동제어를 출력하는 마이컴으로 이루어진 특징이 있다.In order to achieve the above object, the present invention provides a blower motor drive unit capable of controlling the RPM of a blower motor using a contactless relay, and a key control unit for inputting a predetermined key command for driving and extinguishing with a microcomputer. When the fire extinguishing command is input, the blower motor stops the blower motor for a predetermined time Tl, the maximum RPM drive of the blower motor for a predetermined time T2, and the microcomputer outputs the minimum RPM drive control of the blower motor for a predetermined time T3. There is this.
이하 첨부된 도면에 의거하여 본 발명을 설명한다.Hereinafter, the present invention will be described with reference to the accompanying drawings.
제1도는 본 발명이 적용된 회로도를 도시한 것으로, 본 발명에 따른 소정 프로그램을 내장하고 중앙처리장치(CPU) 및 입출력 장치등으로 이루어진 원칩 마이컴(1)과 인버터(IC), 저항(R), 무접점레이(SSR),바리스터(VAR), 스너버(SN) 및 송풍모터(FM)로 이루어져 송풍팬을 회전시키는 송풍모터 구동부(2)와, 상기 마이컴(1)을 리세트 시키는 리세트부(4)와, 운전 시작/소화 스위치, 화력설정스위치등을 구비하여 상기 마이컴(1)으로 일정명령에 대한 키입력을 행하는 키조작부(5)와, 기화기 가열용 히터를 구동시키는 기화기 히터 가열부(6)와, 전자펌프를 구동하여 오일을 버너로 이송시키는 전자펌프구둥부(7)와, 버너로의 오일 투입 및 차단을 솔레노이드 밸브의 개폐에 따라 제어되도록 솔레노이드를 구동하는 솔레노이드 구동부(8)와, 이그나이터에 고압을 인가하여 점화기능을 수행하도록 한 이그나이터 구동부(9)와, 기화기의 온도를 감지하는 기화기 온도 감지부(10)와, 버너 상부 불꽃의 상태를 감지하는 염전류 감지부(11)와, 상기 마이컴(1) 및 주변회로에 적정직류전원을 공급하는 전원공급부(3)로 구성되어 있다.FIG. 1 is a circuit diagram to which the present invention is applied, and includes a one-chip microcomputer 1, an inverter IC, a resistor R, and a built-in predetermined program according to the present invention. Blower motor driving unit (2) for rotating the blower fan consisting of solid-state ray (SSR), varistor (VAR), snubber (SN) and blower motor (FM), and reset unit for resetting the microcomputer (1) (4), a key operation unit (5) including an operation start / fire extinguishing switch, a fire power setting switch, etc., for inputting a predetermined command to the microcomputer (1), and a carburetor heater heating unit for driving a carburetor heating heater. (6), an electronic pump hole (7) for driving oil to transfer the oil to the burner, and a solenoid driving unit (8) for driving the solenoid to control the opening and closing of the oil to the burner according to the opening and closing of the solenoid valve. Wow, apply high pressure to the igniter The igniter driver 9 for performing the ignition function, the carburetor temperature detector 10 for sensing the temperature of the carburetor, the salt current detector 11 for detecting the state of the flame on the burner, and the microcomputer 1 And a power supply unit 3 for supplying proper DC power to the peripheral circuit.
또한, 상기 송풍모터 구동부(2)는 위상제어를 통한 송풍모터(FM)의 RPM을 제어할 수 있는 회로로서, 상기 마이컴(1)이 송풍모터 구동부(2)로 하이레벨 신호를 출력하면 이때 출력된 신호는 인버터(IC)를 통해 반전되고 동시에 저항(R)을 거쳐 무접점 릴레이(SSR)의 발광소자(S1)를 통전시켜 그 수광소자(S2)가 도통되어 송풍모터(FM)에 전원(AC)이 인가된다 따라서 상기 송풍모터(FM)는 구동하는데, 이때 제2도에도시된 바와같이 마이컴(1)의 제어된 출력((2-2)∼)2-7)에 따라 송풍모터(FM)에는 각기 다른 전원파형(2-1)이 인가되어 결과적으로 송풍모터(FM)의 RPM을 제어할 수 있다. 본 발명에서는 일례로 6단계의 RPM제어를 채용했으며 이는 아래의 도표와 같다,In addition, the blower motor driver 2 is a circuit capable of controlling the RPM of the blower motor FM through phase control, and when the microcomputer 1 outputs a high level signal to the blower motor driver 2, it is output at this time. The signal is inverted through the inverter IC, and at the same time, the light-emitting element S1 of the contactless relay SSR is energized through the resistor R to conduct the light-receiving element S2 to supply power to the blower motor FM. AC) is applied, so that the blower motor FM is driven, in accordance with the controlled output (2-2) to 2-7 of the microcomputer 1 as shown in FIG. Different power waveforms 2-1 are applied to FM) to control the RPM of the blower motor FM. In the present invention, for example, six steps of RPM control are employed, which are shown in the following table.
(도표)(graph)
(RMS : 실효치)(RMS: effective value)
제3도는 본 발명에 의한 제어를 나타내는 타임챠트로써, 이를 토대로 본 발명의 작용 및 효과를 설명한다.3 is a time chart showing the control according to the present invention, and the operation and effects of the present invention will be described based on this.
우선, 본 회로에 전원 공급부(3)를 통해서 전원(AC)이 인가되면 마이컴(1)은 키조작부(5)를 통해 입력되는 명령을 검출하여 그에 상응되는 제어를 행하는데 연소운전명령이 입력되면 송풍모터 구동부(2), 전자펌프 구동부(7), 솔레노이드 구동부(8), 이그나이터 구동부(9)등을 적절히 구동시켜 연소제어를 실행하고, 상기 키조작부(5)를 통해 소화명령이 입력되면, 즉 제3도에 도시된 시점(t1)에서 소화명령이 입력되면 상기마이컴(1)은 송풍모터 구동부(2)로 출력을 차단하여 송풍모터(FM)를 정지시킴으로서 소화시 발생될 수 있는 냄새를 감소시킨다. 이후 일정시간(T1)(일레:59sec)의 경과를 마이컴(1)의 내장 타이머를 이용하여 계수한뒤 시점(t2)에서 일정시간(T2)(일례:1sec)동안 송풍모터(FM)의 최대츨력인 6단 출력을 행하여 제3도의 (3-2)에서와 같이 송풍모터(FM)에는 전파가 인가된다. 따라서 이때 송풍모터(FM)는 큰 기동력으로 기동됨으로서 먼지 및 이물질로 기인되는 송풍모터(FM)의 원활치 못한 기동을 해소할 수 있다·차후 시점(t3)에서는 일정시간(T3)동안 송풍모터 구동부(2)로 1단 출력을 행하여 송풍모터(FM)의 기동후에는 최소RPM으로 송풍모터(FM)가 구동하도록 하여 전력낭비 방지 및 버너를 식혀주도록 한뒤, 시점(t4)에서 송풍모터 구동부(2)로의 출력을 완전히 차단함으로씨 소화 기능을 완료하는 것이다.First, when the power source AC is applied to the present circuit through the power supply unit 3, the microcomputer 1 detects a command input through the key operation unit 5 and performs a corresponding control. When the blower motor driving unit 2, the electromagnetic pump driving unit 7, the solenoid driving unit 8, the igniter driving unit 9 and the like are properly driven to execute combustion control, and a fire extinguishing command is input through the key operation unit 5, That is, when the extinguishing command is input at the time point t1 shown in FIG. 3, the microcomputer 1 cuts off the output to the blowing motor driver 2 to stop the blowing motor FM to smell the odor that may be generated during extinguishing. Decrease. After that, the elapse of the predetermined time T1 (e.g. 59 sec) is counted using the built-in timer of the microcomputer 1, and then the maximum of the blower motor FM for a predetermined time T2 (e.g. 1 sec) at the time point t2. An output of six stages of output is performed, and radio waves are applied to the blowing motor FM as shown in (3-2) of FIG. Therefore, at this time, the blower motor FM is started by a large maneuvering force, thereby eliminating the inadequate starting of the blower motor FM caused by dust and foreign matter. At a later time t3, the blower motor driving unit ( 2) After the blower motor FM is started, the blower motor FM is driven at the minimum RPM to prevent power wastage and cool down the burner. Complete digestion of the seed by blocking the furnace output completely.
이상에서와 같이 본 발명은 소화시 송풍모터(FM)의 기동이 원활해 지도록 제어함으로서 송풍모터의 불량을 최소화 할수 있는 이점이 있다.As described above, the present invention has the advantage of minimizing the defect of the blower motor by controlling the smooth start of the blower motor (FM) during fire extinguishing.
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KR1019930017704A KR960006270B1 (en) | 1993-09-04 | 1993-09-04 | Fan motor control device for fan heater |
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KR1019930017704A KR960006270B1 (en) | 1993-09-04 | 1993-09-04 | Fan motor control device for fan heater |
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KR950009159A KR950009159A (en) | 1995-04-21 |
KR960006270B1 true KR960006270B1 (en) | 1996-05-13 |
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KR1019930017704A Expired - Fee Related KR960006270B1 (en) | 1993-09-04 | 1993-09-04 | Fan motor control device for fan heater |
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