JPH01314851A - Quick space heating controller for space heater - Google Patents

Abstract

PURPOSE:To prevent safety from decreasing due to heating of a space heater by eliminating the execution of quick space reheating before a predetermined period of time is elapsed from the execution of previous quick space heating. CONSTITUTION:When an operation switch 26 is closed, a signal is fed to a discriminator 27, a combustion controller 28 operates an ignitor 34, a solenoid valve 35, and starts burning by a burner 37. A fan motor controller 29 operates a fan motor driver 21, and drives a blowing fan 20. A quick space heat discriminator 31 executes quick space heating if a signal that the lapse time after the previous quick space heating is finished is elapsed for a predetermined period or more of time is obtained from a quick space heat OFF timer 30, while it outputs a quick space heat non-execution signal if it is not. A quick space heat controller 32 controls a combustion amount regulator 36 by a signal from the discriminator 31, and regulates to increase or decrease combustion amount. If the switch 25 is opened or room temperature setting condition of a space temperature detector 33 is not satisfied, the quick space heating is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rapid heating control device for combustion devices in various fields, mainly heaters.

Conventional technology In recent years, one of the additional functions of heating appliances has been to rapidly heat the room by increasing the combustion amount beyond the maximum combustion amount during normal operation for a certain period of time from the start of operation or until the room temperature reaches a certain condition. A so-called rapid heating system has been added to improve comfort by quickly warming the room when the room temperature is low and preventing the feeling of cold air. However, since combustion is performed at a combustion rate greater than the maximum combustion rate, it is important to prevent a decrease in safety due to abnormal heating of the vessel body.

An example of the above-mentioned conventional rapid heating control device for a heating appliance will be described below with reference to the drawings.

FIG. 2 shows a block diagram of a conventional rapid heating control device for a heating appliance. In FIG. 2, 1 is an outlet. 2 is a fan for blowing air.

3 is a fan motor drive unit, which drives the ventilation fan 2. 4 is a transformer. 5 is a rectifier which performs full-wave rectification of the AC power source. A smoothing capacitor 6 smoothes the DC power obtained by the rectifier 5. 7 is resistance. Reference numeral 8 denotes an operation switch, which turns the appliance on and off. Reference numeral 9 denotes a determination section, which determines and controls the operation of the appliance based on the signal from the operation switch 8. Reference numeral 1o denotes a combustion control section, which performs combustion control based on a signal from an operation switch 8.

Reference numeral 11 denotes a fan motor control section, which outputs a control signal to the fan motor drive section 3. Reference numeral 12 denotes a rapid heating determination unit, which determines whether or not to perform rapid heating. Reference numeral 13 denotes a rapid heating control section, which performs rapid heating control based on a signal from the rapid heating determination section 12. The determination section 9 is a combustion control section 10.
, a fan motor control section 11, a rapid heating determination section 12, and a rapid heating control section 13. 14 is a room temperature detection section that detects the room temperature and sends it as a voltage signal to the rapid heating determination section 12. 15 is an igniter. Reference numeral 16 denotes a solenoid valve that turns on and off the supply of fuel in response to a signal from the combustion control section 1o.

Reference numeral 17 denotes a combustion amount adjustment section, which increases the combustion amount in response to a signal from the rapid heating control section 13. 18 is a burner;
Perform combustion.

The operation of the rapid heating device for a heating appliance configured as described above will be described below with reference to the drawings.

First, a commercial power source obtained through an outlet 1 is stepped down by a transformer 4, full-wave rectified by a rectifier 5, and then smoothed by a smoothing capacitor 6 to become direct current. The control described later is performed using the DC power source obtained by the above method. If the operation switch 8 is operated by a human, a signal is sent to the combustion control section 10, the fan motor control section 11, and the rapid heating determination section 13, and the combustion control section 10 controls the igniter 15. The solenoid valve 16 is operated and the burner 18 starts combustion. Further, the fan motor control section 11 operates the fan motor drive section 3 to drive the ventilation fan 2 . Based on the signal from the room temperature detection section 14, the rapid heating determination section 12 outputs a signal to perform rapid heating if the room temperature is below a set value, and outputs a signal not to perform rapid heating if the room temperature is above the set value. Rapid heating control section 13
controls the combustion amount adjustment section 17 based on the signal from the rapid heating determination section 12, and increases the combustion amount or adjusts it to the normal combustion amount. Rapid heating is terminated when the operation switch 8 is turned off or when the room temperature rises and the signal sent to the rapid heating determination section 12 via the room temperature detection section 14 exceeds a set value. In this way, comfort such as immediate heating and prevention of cold air feeling when the room temperature is low is obtained. Regardless of the temperature increase, whether or not to perform rapid heating is determined only by the room temperature when the operation switch 8 is operated by a person.

Therefore, there is a risk that rapid heating will be carried out even when the indoor load is very large or when the appliance is in a heated state, which poses the problem of significantly reducing safety.

In view of the above-mentioned problems, the present invention improves safety by not performing rapid heating again until a certain period of time has passed after the previous rapid heating when determining rapid heating. To provide a rapid heating device for a heating appliance that prevents the temperature from decreasing.

Means for Solving the Problems In order to solve the above problems, the present invention provides an operation switch that turns on and off the operation of the appliance, a determination section that determines the on/off signal of the operation switch and controls each part, and the determination section. a solenoid valve that turns on and off the supply of fuel in response to a combustion control signal from the determination unit; an igniter that ignites the fuel; and an igniter that ignites the fuel, increasing the amount of fuel supplied through the solenoid valve in response to a rapid heating control signal from the determination unit. a fan motor drive section that also operates according to a fan motor control signal from the determination section; and a fan motor drive section that is controlled by the combustion amount adjustment section to increase the combustion amount when the solenoid valve and the igniter operate. A combustion control unit that includes a burner that performs combustion and a fan motor that blows air under the control of the determination unit, the determination unit being activated by an input signal of the operation switch and outputting a combustion control signal;
a fan motor control section that outputs a fan motor control signal to the fan motor drive section in response to an input signal from the operation switch; and a rapid heating control section that is reset by a signal indicating the end of the rapid heating operation, starts counting, and outputs a signal after a certain value is completed. A heating off timer, a rapid heating determination unit that determines whether or not rapid heating is to be performed based on a signal from the rapid heating off timer in response to an input signal from the operation switch; The heating system includes a rapid heating control section that sends a heating control signal.

Function The present invention has the above-described configuration, and when determining rapid heating,
Rapid heating will not be performed again until a certain period of time has passed since the previous rapid heating, so the equipment will not overheat due to rapid heating.
It is possible to prevent the operation switch from being turned on and off for a long period of time, and it is possible to prevent a decrease in safety due to heating of the device body.

EXAMPLE Hereinafter, a rapid heating control device for a heating appliance according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of a rapid heating device for a heating appliance in an embodiment of the present invention. 19 is an outlet. 2o is a fan for blowing air.

Reference numeral 21 denotes a fan motor drive unit, which drives the ventilation fan 20. 22 is a transformer. A rectifier 23 performs full-wave rectification of the AC power source.

A smoothing capacitor 24 smoothes the DC power obtained by the rectifier 23. 25 is a resistance.

Reference numeral 26 is an operation switch, which turns on and off the appliance. 27
is a determination unit that determines and controls the operation of the appliance based on the signal from the operation switch 26. Reference numeral 28 denotes a combustion control section, which performs combustion control based on a signal from the operation switch 26. A fan motor control section 29 outputs a control signal to the fan motor drive section 21. 30 is a rapid heating off timer which counts the time since the previous rapid heating and outputs a control signal when the time exceeds a certain value. 31 is a rapid heating determination unit, which determines whether or not rapid heating is to be performed. 32 is a rapid heating control section, which performs rapid heating control based on a signal from the rapid heating determination section 31. The determination section 27 includes a combustion control section 28, a fan motor control section 29, a rapid heating off timer 30° rapid heating determination section a1, and a rapid heating control section 32. 33 is a room temperature detection section which detects the room temperature and sends it as a voltage signal to the rapid heating determination section 31.

34 is an igniter. 35 is a solenoid valve, which turns on and off the supply of fuel in response to a signal from the combustion control section 28.

36 is a combustion amount adjustment section, which increases the combustion amount in response to a signal from the rapid heating control section 32. 37 is a burner that performs combustion.

The operation of the rapid heating control device for a heating appliance configured as described above will be described below with reference to the drawings.

First, commercial power obtained through the outlet 19 is stepped down by a transformer 22, and then full-wave rectified by a rectifier 23.
It is smoothed by a smoothing capacitor 24 and becomes a direct current. The control described below is performed using the DC power source obtained by the above method. When the operation switch 26 is operated by a human, a signal is sent to the combustion control section 28, fan motor control section 29, and rapid heating determination section 31, and the combustion control section 28 operates the igniter 34 and solenoid valve 35 to start combustion by the burner 37. Start. Further, the fan motor control section 29 operates the fan motor drive section 21 to move the ventilation fan 20.

If the rapid heating determination unit 31 receives a signal from the rapid heating off timer 3o that the elapsed time since the end of the previous rapid heating has exceeded a certain period of time, it executes rapid heating, and if not, it issues a signal that does not execute rapid heating. Output. Rapid heating control section 32
controls the combustion amount adjustment section 36 based on the signal from the rapid heating determination section a1 to increase the combustion amount or adjust it to the normal combustion amount.

Rapid heating is terminated when the operation switch 26 is turned off or when the room temperature rises and the signal from the room temperature detection section 33 no longer satisfies the set conditions.

In this way, by not performing rapid heating again until a certain period of time has passed after performing rapid heating, it is possible to prevent a decrease in safety due to heating of the vessel.

Effects of the Invention As described above, the present invention includes an operation switch that turns on and off the operation of the appliance, a determination section that determines the on/off signal of the operation switch and controls each part, and a combustion control signal from the determination section.
a solenoid valve that turns on and off the supply of fuel; an igniter that ignites the fuel; and a combustion amount adjustment unit that increases the fuel supplied via the solenoid valve in response to a rapid heating control signal from the determination unit. , a fan motor drive section that also operates according to a fan motor control signal from the determination section, and a burner that performs combustion with an increased combustion amount controlled by the combustion amount adjustment section when the solenoid valve and the igniter operate. a fan motor that is controlled by the determination unit and blows air;
The determination unit includes a combustion control unit that operates in response to an input signal from the operation switch and outputs a combustion control signal, and a fan motor control unit that outputs a fan motor control signal to the fan motor drive unit in response to an input signal from the operation switch. and a rapid heating off timer that is reset by the signal that the rapid heating operation has ended, starts counting, and outputs a signal after a certain value has finished, and when the operation switch is turned on, rapid heating is performed by the signal of the rapid heating off timer. and a rapid heating side control section that sends a rapid heating control signal to the combustion amount adjusting section based on the signal from the rapid heating determining section. , Since rapid heating will not be performed again until a certain period of time has passed after the previous rapid heating, it is possible to prevent the equipment from overheating due to rapid heating from continuing for a long time by turning the operation switch on and off. Deterioration in safety due to heating can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a rapid heating device for a heating appliance in an embodiment of the present invention, and FIG. 2 is a block diagram of a rapid heating device for a heating appliance in a conventional embodiment. 21...Fan motor drive section, 27...
- Judgment section, 28... Combustion control section, 29...
...Fan motor control unit, aO...Rapid heating off timer, 31...Rapid heating determination unit, 32...
...Rapid heating control section, 35... Combustion amount adjustment section.

Claims (1)

[Claims] An operation switch that turns on and off the operation of the appliance, a determination unit that determines the on/off signal of the operation switch and controls each part, an electromagnetic valve that turns on and off the supply of fuel based on the combustion control signal from the determination unit, and the fuel. a combustion amount adjusting section that increases the fuel supplied via the solenoid valve in accordance with a rapid heating control signal from the determining section; and a fan motor control signal also in response to the determining section. a fan motor driving section that operates, a burner that performs combustion with an increased combustion amount that is controlled by the combustion amount adjustment section when the solenoid valve and the igniter operate, and a fan motor that is controlled by the determination section and blows air. The determination unit has a combustion control unit that operates in response to an input signal from the operation switch and outputs a combustion control signal, and a combustion control unit that outputs a fan motor control signal to the fan motor drive unit in response to an input signal from the operation switch. a fan motor control unit that is reset by a signal that the rapid heating operation has ended, a rapid heating off timer that starts counting and outputs a signal after a certain value has been reached; Rapid heating control for a heating appliance, comprising: a rapid heating determination unit that determines whether rapid heating is to be performed; and a rapid heating control unit that sends a rapid heating control signal to the combustion amount adjustment unit based on a signal from the rapid heating determination unit. Device.