KR930004720A - Operation control method and apparatus of large-sized hot air fan - Google Patents

Abstract

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Description

Operation control method and apparatus of large-sized hot air fan

Since this is an open matter, no full text was included.

1 is a configuration diagram of the operation control device of a conventional large-scale hot air blower,

2 is a flow chart of operation of the conventional large-scale hot air heater according to FIG.

3 is a block diagram of a driving control device for a large-sized air blower according to the present invention.

Claims (5)

The microcomputer which controls the operation of the warm air conditioner drives the gas quantity detection sensor while driving the burner motor (BM) at the start of the operation and at the time of extinguishing, to detect the gas quantity information of the combustion chamber, and according to the gas quantity information until the combustion chamber is within the clean range. A drive control method for a large warm air fan, characterized in that for controlling the next operation after driving the burner motor (BM). The high-potential signal count value (D ← D + 1) for checking the output of the gas quantity generation sensor at a predetermined time interval is increased (D ← D + 1), and the count value is set at a predetermined number of times. And (D) comparing the combustion chamber clean range reference value to detect the gas amount information of the combustion chamber. Load drive unit for controlling fan motor (FM), burner motor (BM), electronic pump (P), and ignition transformer (IG) through drive control relay switches (RY ₁₂ , RY ₂₁ , RY ₃₁ , RY ₄₁ ). (11) and the power supply unit 12 for rectifying and smoothing the input power supply AC after stepping down to generate a power supply voltage Vcc at a constant electric voltage, and the salt detection unit 18 for outputting a high potential during normal flame detection; A relay driving unit 17 for controlling each load driving of the driving unit 11 through load driving control relays RY ₁ , RY ₂ , RY ₃ , and RY ₄ , an operation control switch SW ₁ , and the salt detecting unit; In the operation control device of a large warm air heater comprising a microcomputer 16 for controlling the relay drive unit 17 to receive the output of the output (18) to control the operation, the amount of gas in the combustion chamber is detected as an electrical signal through a sensor. The amount of gas detection sensor 14 and the output of the gas amount detection sensor 14 are compared with a reference value to the microcomputer 16. The driving power of the gas amount detection sensor 14 and the gas amount detection output unit 15 according to the gas amount detection output unit 15 for inputting the gas amount detection information and the gas amount detection sensor control signal of the microcomputer 16 A driving control device for a large-sized air blower, comprising a sensor driving part (13) for supplying and cutting off Vcc). 4. The zener diode ZD ₁ of claim 3, wherein the sensor driver 13 receives the collector of the transistor Q ₁ , which receives the sensor drive control signal of the microcomputer 16 through the resistors R ₁₁ and R ₁₂ . a box with connection to the base of the transistor (Q ₂₎ as well as operation of the back through a resistor (R _10), wherein the transistor (Q ₂₎ collector side output gas detection sensor unit 14 and the gas amount detection output unit 15 in the Operation control device of a large hot air heater, characterized in that configured to output to the power supply (Vcc). 4. The large-scale hot air blower according to claim 3, wherein the gas amount detecting sensor unit (14) is configured to install a photocoupler (PC ₁ ) to measure the amount of exhaust gas in the combustion chamber and to detect the gas amount at a voltage inversely proportional to the gas amount. Operation control device. ※ Note: This is to be disclosed by the original application.