JPH02195115A - Control device for burner - Google Patents

Abstract

PURPOSE:To simplify the constitution of switches by connecting at least either one of the switches for controlling the various functions, which are associated with the main body of a burner, to an initializing circuit for initializing a fire extinguishing timer. CONSTITUTION:A combustion device is provided with a fire extinguishing timer 19, an initializing circuit 20 for outputting an instruction of initializing the fire extinguishing timer 19, and an alarm section 21. The initializing circuit 20 is connected to every one from a switch 9 to a switch 16. When any of these switches 9 to 16 in a manipulation display section 7 is manipulated, a manipulation signal triggers the intrinsic processing function and is simultaneously inputted into the initializing circuit 20 to reset the fire extinguishing timer 19 to an initial state. Accordingly, since the safety of the combustion device can be secured without providing an exclusive switch for initializing the fire extinguishing timer, circuitry can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a control device for a combustor that takes in room air, burns it, and releases the combustion gas into the room for heating.

BACKGROUND ART In general, in this type of combustor, as shown in FIG. 5, when an operation switch 100 is turned on, combustion is started by the action of a combustion control unit 101, and after a certain period of time, the fire extinguishing timer 102 automatically starts combustion for safety. The combustion will stop at . Furthermore, if you want to continue burning, switch the operation switch to 1 again.
00 or by operating a dedicated switch 103.

This switch 103 is a switch configured separately from other temperature setting switches and clock time setting switches, and -
It has a function to restart combustion that has been stopped dynamically, and a function to extend the combustion duration when operated during combustion, and may also be equipped with a display device nearby that displays the operation status of the dedicated switch. many.

Problems to be Solved by the Invention However, conventional combustors are expensive because they have a dedicated switch for extending the combustion duration, and they also have problems in terms of design, such as difficulty in arranging them with other switches. Ta.

The present invention was invented in view of these points, and by combining the function of extending the combustion duration with a switch for controlling various other functions such as a temperature setting switch and a clock time setting switch, it is possible to The purpose is to simplify the process.

Means for Solving the Problems The present invention solves the above problems by turning on the operation switch.
a combustion control unit that starts combustion by the above, a fire extinguishing timer that forcibly stops combustion in the combustion unit after a preset time has elapsed, and a switch other than the operation switch that is incorporated into the main body of the salt m equipment. and switches for controlling various functions, and at least one of the switches is connected to an initialization circuit that initializes the fire extinguishing timer.

Further, at least one of the switches is a branch circuit that initializes the fire extinguishing timer when the switch is operated two or more times in a row, or at least one of the switches is a branch circuit that initializes the extinguishing timer when the switch is operated for two or more times in a row. It is connected to the initialization circuit via a branch circuit that initializes the extinguishing timer.

Effect of the present invention With the above configuration, the combustion duration can be extended by, for example, setting the i11, setting the clock, etc.
The number of switches that control various functions can be reduced.

EXAMPLE Below, an example in which the present invention is implemented in a kerosene fan heater will be explained based on FIG. 1. The combustion device includes a set temperature changing section 1,
It is composed of a time change section 2, a timer operation section 3, a combustion control section 4, a fuel adjustment section 5, and an air amount adjustment section 6. The combustion control section 4 starts combustion according to a predetermined sequence when the operation switch 8 is turned on. and controls the fuel adjustment section 5 and air amount adjustment section 6 according to the difference between the temperature set by the set temperature change section 1 and the room temperature, and controls the combustion to be strong, medium, weak, etc. do.

The operation display section 7 consists of a group of switches and a group of displays that control various functions of the combustion equipment main body, and 9 indicates the "hour" when setting the time.
10 is a switch that also serves to set "minutes" when setting the time and UP the set temperature when setting the temperature; 11 is a switch that instructs to set the current time; 12 is a switch that instructs to set the timer time, 13 is a switch that instructs to perform timer operation, and I4 is set to "moderate mode" which temporarily stops combustion when the room temperature rises above the set temperature. Switch to select whether or not, 1
5 always maintains combustion at a weak level regardless of the set temperature.
A switch 16 is used to select whether the numeric display section 17 displays the clock or the temperature, and is input to the display switching section 18. The switches 9 to 16 are all non-lock type switches, and when the respective functions of the switches 11 to 14 are in operation, the lamps 11', 12', 13', and 14' corresponding to each switch are lit. Further, the above-mentioned combustion device includes a fire extinguishing timer 19 and this fire extinguishing timer 1.
An initialization circuit 20.1 is provided with a reporting section 21 for outputting an instruction to initialize 9. The initialization circuit 20 outputs a signal S1 for initializing the fire extinguishing timer value when the operation switch 8 is turned on, and the fire extinguishing timer 19 receives this, initializes the value, and then starts operating. That is, when a preset time, for example, 2 hours and 45 minutes has elapsed, a signal S3 is output to the alarm section 21, and three hours after 15 minutes have elapsed, a signal S2 to stop combustion is output to the combustion control section 4. Further, the initialization circuit 20 is connected to any of the switches 9 to 16 described above. Therefore, when a combustion equipment user operates any switch from switch 9 to switch 16 of the operation display section 7 in response to an alarm from the alarm section 21, the operation signal is sent to the initialization circuit 20 at the same time as the original function processing. is also input, and the fire extinguishing timer 19 is reset to the initial state.

In the above configuration, when the device user turns on the operation switch 8, the combustion control section 4 starts combustion based on a predetermined sequence, and controls the combustion based on the output from the set temperature change section l. control. At the same time, the fire extinguishing timer 19 starts operating, and if no operations are performed such as setting the clock time, changing the temperature setting, or selecting "moderate mode" or "mild mode", the fire extinguishing timer 19 will start operating for a predetermined period of three hours. Afterwards, the combustion is stopped by outputting the combustion stop signal S2. Therefore, even if the user falls asleep, accidents such as oxygen deficiency will not occur. On the other hand, if the device user operates any switch on the operation display section 7 during combustion, the initialization circuit 20 outputs a signal S.
1 resets the extinguishing timer 19 to its initial state, so combustion continues without stopping. Of course, at this time, the user must take measures to prevent accidents such as lack of oxygen by opening the windows or ventilating the room at any time.

As mentioned above, the situation in which a dedicated switch is provided to initialize the fire extinguishing timer (as it is possible to ensure the same safety as before, the circuit configuration is simplified and contributes to cost reduction, and at the same time, the switch can also be installed on the operation display section 7) Since the total number is reduced, it becomes easier to design.

FIG. 2 shows another embodiment, in which a branch circuit 22 is provided on each input signal line from switch 9 to switch 16, and one end of the output of branch circuit 22 is manually supplied to initialization circuit 20. be. The branch circuit 22 outputs a signal to the initialization circuit 20 when each switch is operated twice or more consecutively within 2 seconds, and its operation will be explained using the flowchart of FIG. First, in step 23, it is determined whether any switch from switch 9 to switch 16 has been operated, and if a switch has been operated, it is determined in step 24 whether or not it has been within 2 seconds, and within 2 seconds. After confirming the number of times in step 25, the initialization circuit 20
Outputs a signal to. If two seconds or more have elapsed, the number of switch operations is cleared in step 26 and the count is restarted from the beginning. In the above configuration, for example, if the fire extinguishing timer is used as a sleep timer, it is necessary to operate a switch to change the setting status of the device, but it may also be necessary to not initialize the extinguishing timer. You will be able to answer the questions and the usability will improve.

FIG. 4 is a flowchart showing another embodiment of the branch circuit 22, in which a signal is sent to the initialization circuit 20 when any switch from the switch 9 to the switch 16 is continuously pressed for 5 seconds or more. This is what is output. Switch 9.
Since the switch 10 is a switch for changing the clock time or temperature setting, it is normally operated multiple times within a short period of time. Therefore, in the first branch circuit embodiment, it is not possible to leave the initialization circuit 20 without outputting a signal. However, in the second branch circuit embodiment, if the switch is held down, a signal is output to the initialization circuit 20, which further improves usability.

In addition to the effects of the invention, as is clear from the examples, the present invention can reduce the number of operation switches while maintaining the safety function of forcibly stopping combustion after a certain period of time, thereby reducing costs. In addition, the extinguishing timer can be cleared by operating the switch multiple times in succession or by continuing to press it, so it can be distinguished from the original function of the switch, which has the effect of improving usability.

[Brief explanation of the drawing]

FIG. 1 is a bronch block diagram of a combustor control device showing an embodiment of the present invention, FIG. 2 is a bronch block diagram of an embodiment of the present invention, and FIG. FIG. 4 is a flowchart showing the operation of the embodiment, and FIG. 5 is a block diagram showing the conventional example. 4...Combustion control unit, 8...Operation switch, 9-16...Switch, 19...
Fire extinguishing timer, 20...Initialization circuit, 22...
...Branch circuit.

Claims (3)

[Claims] (1) In a combustor equipped with an operation switch that instructs on/off of combustion and a fire extinguishing timer that automatically extinguishes the fire when combustion continues for a certain period of time, a switch that controls various functions built into the combustion equipment body. A combustor control device in which at least one of the switches other than the operation switch is connected to an initialization circuit that resets the setting of the extinguishing timer. (2) At least one of the switches that control various functions built into the combustion equipment body, other than the operation switch, is connected via a branch circuit to an initialization circuit that resets the settings of the fire extinguishing timer. The combustor control device according to claim 1, wherein the branch circuit is configured to reset the extinguishing timer when the branch circuit is operated twice or more within a certain period of time. (3) At least one of the switches that control various functions built into the combustion equipment body, other than the operation switch, is connected via a branch circuit to an initialization circuit that resets the settings of the fire extinguishing timer. However, this branch circuit is configured to reset the setting of the extinguishing timer when the button is pressed for a certain period of time or more.
) The control device for the combustor described in item 2.