JPH0645799Y2 - Heating system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a heating device such as a petroleum fan heater having an automatic extinguishing function for preventing forgetting to turn off.

<Prior Art> A conventional heating device such as a petroleum fan heater has a function of automatically extinguishing a fire after a predetermined time (about 3 hours) has passed since ignition in order to prevent an oxygen deficiency accident caused by forgetting to turn it off. In order to continue heating, you can operate the extended switch that releases the function before the forget-to-remove automatic fire extinguishing function operates.
Alternatively, the user had to perform the ignition operation again after extinguishing the fire by the function.

<Problems to be Solved by the Invention> In the above conventional technique, the operation of the extended switch is extremely troublesome, and odor is generated during re-ignition after automatic extinguishing. In addition, since the minimum calorific value of the heating by the liquid fuel combustion device is relatively large, the room temperature continues to rise even if the heating is performed with the minimum calorific value, and when the combustion is stopped, it feels sensationally cold. There was a point.

Therefore, the present invention aims to provide a heating device that can prevent the heating from completely stopping even if the automatic forgetting prevention automatic fire extinguishing function is activated, and can prevent a chill feeling when the liquid fuel combustion device is stopped. And

<Means for Solving the Problems> The means for solving the problems according to the present invention is, as shown in FIGS. 1 to 3, a heating apparatus main body 1 and a heating device main body 1 for heating by a liquid fuel. Liquid fuel combustion device 2 and electric heating device 3 arranged in the main body 1 for heating by electricity
And a control device 4 for operating and stopping the liquid fuel combustion device 2 and the electric heating device 3, and the control device 4
Is an automatic extinguishing prevention function that prevents the liquid fuel combustion device 2 from stopping when the operation stop signal is not input after a lapse of a predetermined time from the input of the operation command signal, and when the operation stop signal is not input after the lapse of the predetermined time. The electric heating device 3
And a vaporizer of the liquid fuel combustion device 2
10 is provided with a function of operating the electric heating device 3 during preheating or during non-operation due to running out of fuel.

<Operation> In the above problem solving means, when the user inputs the operation command signal, the control device 4 performs heating by the electric heating device 3 until the preheating of the liquid fuel combustion device 2 is completed. Therefore, it is possible to prevent heating from being started at the same time as the instruction to start the operation and to give the user an uncomfortable feeling or anxiety.

Further, when it is detected that the indoor temperature has risen and the indoor temperature has reached the set temperature, the control device 4 causes the liquid fuel combustion device 2 to operate.
Is stopped, and at the same time, the electric heating device 3 is driven to maintain the room temperature, so that it is possible to prevent a chilly feeling when the heating is completely stopped.

Next, when a predetermined time has elapsed from the start of operation, the automatic forgetting prevention automatic fire extinguishing function is activated, and the liquid fuel combustion device 2 is stopped by the control device 4. At this time, the electric heating device 3 is simultaneously driven, and the heating is prevented from completely stopping.
Further, the electric heating device 3 is similarly driven when the liquid fuel combustion device 2 is stopped due to the intention of the user, such as when the fuel is exhausted. The heating by the electric heating device 3 is continued until the user operates the stop switch 33 and inputs the operation stop signal.

<Embodiment> An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a partially cutaway front view of a main body showing an embodiment of a heating device of the present invention, FIG. 2 is a view showing a configuration of a liquid fuel combustion device and a control device, and FIG. The timing chart showing the control of FIG. 3 (b) is also the timing chart when the good morning timer is used,
Similarly, FIG. 3 (c) is a timing chart when the sleep timer is used.

As shown in the figure, the heating device of the present invention includes a heating device main body 1, a liquid fuel combustion device 2 arranged in the main body 1 for heating with liquid fuel, and an electric heating arranged in the main body 1. And a control device 4 for operating and stopping the liquid fuel combustion device 2 and the electric heating device 3. The control device 4 stops operation after a predetermined time has elapsed from the time of inputting the operation command signal. An automatic extinction prevention fire extinguishing function that stops the liquid fuel combustion device 2 when no signal is input, a function that activates the electric heating device 3 when an operation stop signal is not input after the elapse of the predetermined time, and the liquid fuel combustion A function of operating the electric heating device 3 when the carburetor 10 of the device 2 is not operating due to preheating, and a function of operating the electric heating device 3 when not operating due to running out of fuel in the liquid fuel combustion device 2. It is those that are allowed to have a and ability.

The main body 1 is formed in a box shape like a general petroleum fan heater, and has a heated air discharge port 6 to which a louver 5 is attached at the center of the front surface thereof.

The liquid fuel combustion apparatus 2 includes a vaporizer 10 for vaporizing the liquid fuel 9 delivered from the fuel tank 7 by an electromagnetic pump 8 as a pressure feeding means, and a nozzle 11 for ejecting vaporized fuel vaporized by the vaporizer 10. A burner 12 for burning vaporized fuel ejected from the nozzle 11, an ignition device 13 arranged above the burner 12, and a vaporizer heater for heating the vaporizer 10.
14 and. Then, the fuel tank 7 (oil receiving tray) and the carburetor 10 are connected via an oil feed pipe 15. Further, the carburetor 10 is internally movably provided with a needle 16 for controlling the opening and closing of the nozzle 11 at the tip thereof.
A solenoid valve 17 for moving 16 is provided. The solenoid valve 17
Has a function of opening and closing the escape pipe 18 connected to the fuel tank 7. Further, the ignition device 13,
It is arranged above the burner 12.

The electric heating device 3 is composed of a heater equivalent to a heater used in a general electric stove, and is arranged between the louver 5 and the combustion chamber 19.

The control device 4 has a function of controlling the electromagnetic pump 8, the ignition device 13, the carburetor heater 14, the electromagnetic valve 17, and the electric heating device 3, and is disposed in the fuel tank 7 and has a residual oil amount of the liquid fuel 9. A float switch 20 for detecting the temperature, a carburetor temperature detector 21 such as a thermistor for detecting the temperature of the carburetor 10, and
An indoor temperature detector 22 for detecting the indoor temperature, an indoor temperature setter 23 for setting a desired indoor temperature, the carburetor temperature detector 21, a float switch 20, an indoor temperature detector 22, and an indoor temperature setter. A control circuit 24 that performs various controls based on the output signal of 23, an ignition drive unit 25 that controls the operation of the ignition device 13 based on the output signal of the control circuit 24, and the carburetor heater 14 based on the output signal of the control circuit 24. A carburetor heater drive unit 26 for drive control, a pump drive unit 27 for drive control of the electromagnetic pump 8 according to an output signal of the control circuit 24, and a control circuit 24.
Valve drive section for driving and controlling the solenoid valve 17 by the output signal of
28, and an electrothermal drive unit 29 for driving and controlling the electrothermal device 3 according to the output signal of the control circuit 24.

The control circuit 24 is composed of a general one-chip type micro computer, and a timer means is provided therein, and the timer means is a time keeping function such as an automatic extinguishing prevention function, a good morning timer and a good night timer. Is to do.

In the figure, 30 is a blower fan that is driven while the liquid fuel combustion device and the electric heating device 3 are being driven, 31 is a fan drive unit that controls the blower fan 30 by an output signal to the control circuit 24, 32
Is an operation switch for inputting an operation command signal, and 33 is a stop switch for inputting an operation stop signal.
Is disposed at an intake port (not shown) formed on the rear surface of the main body 1, introduces room air into the combustion chamber 19, and heats the air exhaust port 6
It has the function of discharging from.

In the above configuration, first, the heating operation by the liquid fuel combustion device 2 will be described.

When the start of operation is instructed, the control circuit 24 turns on the carburetor heater.
The vaporizer 10 is preheated by 14 and the temperature of the vaporizer 10 is detected by the vaporizer temperature detector 21 to confirm the completion of preheating. Then, the electromagnetic pump 8 is driven to pump the liquid fuel 9 from the fuel tank 7 to the vaporizer 10, and the electromagnetic valve 17 is driven to open the needle 16 to eject the vaporized liquid fuel from the nozzle 11. This vaporized fuel is ignited by the ignition device 13 and burned by the burner 12. At this time, the blower fan 30 is driven to pass from the intake port through the combustion chamber 19 to the heated air exhaust port 6
To form an air flow to.

Further, during the heating operation by the electric heating device 3, the blower fan 30 is driven to form an air flow from the intake port to the heated air discharge port 6 through the combustion chamber 19.

Next, normal control by the control device 4 will be described with reference to FIG.

When the user operates the operation switch 32 to input the operation command signal (t1), the control device 4 starts heating by the electric heating device 3 and simultaneously drives the carburetor heater 14 to drive the liquid fuel combustion device 2. Start preheating of the carburetor 10.

That is, starting the liquid fuel combustion device 2 requires preheating of the carburetor 10, and it takes some time from the start of operation to the start of combustion, which may cause discomfort or anxiety to the user. Therefore, during preheating of the vaporizer 10, the electric heating device 3
By driving, heating is started at the same time as the operation start instruction, and it is possible to prevent the user from feeling uncomfortable or anxious.

Then, when the preheating of the vaporizer 10 is completed (t2), heating by the liquid fuel combustion device 2 is started, and at the same time, the electric heating device 3 is stopped.

Next, when the control device 4 detects that the room temperature has risen and the room temperature has reached the set temperature (t3), the control device 4
The liquid fuel combustion device 2 is stopped, and at the same time, the electric heating device 3 is driven to maintain the room temperature.

At this time, since the temperature of the wall surface of the room, furniture, etc. is also rising, in order to suppress the decrease in the room temperature, the electric heating device 3 having a relatively small calorific value is also effective, and the heating is completely stopped. You can prevent the chilly feeling when you touch. Further, if the amount of heat generated by the electric heating device 3 is controlled by changing the indoor temperature, heating with less temperature hunting can be obtained.

Then, the room temperature drops and falls below the set temperature (t4).
Then, preheating of the carburetor 10 is started again, and when preheating is completed (t5), heating by the liquid fuel combustion device 2 is performed,
At the same time, the electric heating device 3 is stopped.

Next, when a predetermined time (about 3 hours) elapses from the start of operation (t6), the automatic forgetting prevention fire extinguishing function is activated, and the control device 4 stops the liquid fuel combustion device 2. At this time, the electric heating device 3 is simultaneously driven, and the heating is prevented from completely stopping.

In addition, when the float switch 20 detects that the fuel has run out, the liquid fuel combustion device 2 is not caused by the user's intention.
When the stop occurs, the electric heating device 3 is similarly driven.

The heating by the electric heating device 3 is continued until the user operates the stop switch 33 and inputs the operation stop signal (t7). Here, the heating by the electric heating device 3 does not pollute the indoor air and there is no risk of an oxygen deficiency accident, so there is no problem even if it is operated continuously.

Next, the control by the good morning timer will be described with reference to FIG.

The good morning timer is a function that automatically heats the room by heating the room before waking up.If the user sets the desired start time of operation before going to bed, the room temperature will be comfortable when waking up. It is something that is being connected.

Then, before going to bed, set the desired time, temperature, etc. (t8)
Then, at the desired time on the next morning, the liquid fuel combustion device 2 starts operating (t9). After that, when the stop instruction is not given even after a predetermined time (for example, about 1 hour 30 minutes), the automatic forgetting prevention fire extinguishing function works similarly to the above operation (t10), switching to heating by the electric heating device 3, Heating is performed by the electric heating device 3 until the operation stop is instructed (t11).

At this time, if the set temperature is reached during the operation of the liquid fuel combustion device 2, the liquid fuel combustion device 2 is stopped and the electric heating device 3 is driven to keep the room temperature constant as shown in FIG. 3 (a). It goes without saying that the vaporizer 10 is preheated before the liquid fuel combustion apparatus 2 is operated, and the electric heating apparatus 3 is driven during this period.

Here, the reason why the time until the operation of the automatic forgetting prevention automatic fire extinguishing function is shortened than usual is that the liquid fuel combustion device 2 starts operating while the user is sleeping, and there is a risk of an oxygen deficiency accident due to insufficient ventilation. Is high.

Next, the control by the sleep timer will be described based on FIG. 3 (c).

The sleep timer is a function of automatically stopping the heating device operated at bedtime after sleeping, and when the desired time is set at bedtime, the heating device is stopped after that time.

Then, when the desired time is set at bedtime (t12), the liquid fuel combustion device 2 operates to keep the room at an appropriate temperature. However, if the set time is longer than a predetermined time (for example, about 1 hour and 30 minutes), there is a risk that an oxygen deficiency or other accident may occur, so the liquid fuel combustion device 2 stops after the predetermined time (t13 ), Heating is performed by the electric heating device 3 for the remaining time. Then, when the set time has elapsed (t14), the electric heating device 3 is stopped and the heating is ended.

At this time, as in the case of the good morning timer, if the set temperature is reached during the operation of the liquid fuel combustion device 2, the liquid fuel combustion device 2 is stopped and the electric heating device 3 is driven as shown in FIG. 3 (a). As a matter of course, the operation for keeping the indoor temperature constant is performed, the vaporizer 10 is preheated before the operation of the liquid fuel combustion apparatus 2, and the operation of driving the electric heating apparatus 3 is performed during this period.

Here, the time until the operation of the automatic forgetting prevention automatic fire extinguishing function is shorter than usual is due to the same reason as in the case of the above good morning timer.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effect of Device> As is clear from the above description, according to the present invention, the operation stop signal is input to the control device for operating and stopping the liquid fuel combustion device and the electric heating device after a lapse of a predetermined time from the input of the operation command signal. If it is not done, the liquid fuel combustion device is stopped and the automatic forgetting function to prevent forgetting to turn it off and the function to operate the electric heating device when the operation stop signal is not input after the elapse of the predetermined time are provided. It is possible to prevent the heating from being completely stopped by operating the electric heating device when the liquid fuel combustion device is stopped, so that the user does not feel chilly.

Moreover, since the control device has a function of operating the electric heating device during preheating of the carburetor of the liquid fuel combustion device or during non-operation due to running out of fuel, if the electric heating device is activated during preheating, an operation start instruction is given. When heating is performed at the same time, the user does not feel uncomfortable or anxious, and when the electric heating device is activated when the fuel runs out, the heating does not stop completely and the user does not feel chilly. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a main body showing an embodiment of a heating device of the present invention, FIG. 2 is a view showing a configuration of a liquid fuel combustion device and a control device, and FIG. 3 (b) is a timing chart when the good morning timer is used, and FIG. 3 (c) is a timing chart when the good night timer is used. 1: Heating device body, 2: Liquid fuel combustion device, 3: Electric heating device, 4:
Control device, 5: louver, 6: heated air outlet, 7: fuel tank, 8: electromagnetic pump, 9: liquid fuel, 10: vaporizer, 11: nozzle, 12: burner, 13: ignition device, 14: vaporization Heater, 15: oil supply pipe, 16: needle, 17: solenoid valve, 18: relief pipe, 1
9: Combustion chamber, 20: Float switch, 21: Vaporizer temperature detector, 22: Indoor temperature detector, 23: Indoor temperature setting device, 24: Control circuit.

Claims (1)

[Scope of utility model registration request] 1. A heating device main body, a liquid fuel combustion device arranged in the main body for heating with a liquid fuel, an electric heating device arranged in the main body for performing electric heating, and the liquid fuel. A control device for operating and stopping the combustion device and the electric heating device, the control device stopping the liquid fuel combustion device when the operation stop signal is not input after a predetermined time has elapsed from the time of inputting the operation command signal. Preventive automatic fire extinguishing function, a function to operate the electric heating device when an operation stop signal is not input after the lapse of the predetermined time, and a preheating of the carburetor of the liquid fuel combustion device or a non-operation due to running out of fuel A heating device characterized by having a function to operate.