JP2002340336A - Combustion apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion apparatus enabling operation modes to be easily checked even from a remote place. SOLUTION: This combustion apparatus is provided with a burner 9 performing combustion and a color indicator 54 lighting a green color that is the first color to indicate that it is in a normal operation mode, and lighting a blue color that is the second color to indicate that it is in the operation mode except the normal operation mode. Thus, seeing the lighted indication color of the color indicator permits which operation mode is currently used for operation to be easily known even from a remote place. Even in the case of forgetting the operation mode selected by him or herself or by the user except the one having selected the operation mode, easy confirmation is permitted without looking into the small final controlling element of the apparatus, so as to make the convenience in use extremely good.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus for heating a room by burning fuel such as kerosene.

[0002]

2. Description of the Related Art Conventionally, in this type of combustion equipment, in a combustion device such as a fan heater, the operation by means of a timer for forgetting to extinguish which automatically extinguishes a fire after a predetermined time has elapsed from the start of operation is set to a normal operation mode. It has a save operation mode in which the fire is automatically extinguished when the room temperature reaches the set temperature, and combustion starts automatically when the room temperature falls below the set temperature again. Was to be able to choose freely.

[0003]

However, in this conventional device, each operation mode is displayed by illuminating the operation button itself or by providing a small lamp near the operation button and lighting it. Because of this, the user forgot the driving mode selected by himself / herself, and other than the user who selected the driving mode, it was impossible to confirm that the user had to pry into the small operation unit of the instrument, It was impossible to confirm the operation mode, and there was an increasing demand for an easy-to-read display method that could easily confirm the operation mode from a remote place.

[0004]

The present invention focuses on this point and solves the above-mentioned problems. In order to solve the above-mentioned problems, the first aspect of the present invention particularly relates to a burner section for performing combustion and a first operation mode during a normal operation mode. And one color display for displaying in a second color that the operation mode is other than the normal operation mode.

[0005] In the second aspect of the present invention, the normal operation mode is a mode in which the display is displayed in a first color when the automatic extinguishment is performed by the operation of a forgotten timer which automatically extinguishes the fire after a predetermined time has elapsed from the start of the operation. It was changed.

According to a third aspect of the present invention, particularly in the operation modes other than the normal operation mode, the fire is automatically extinguished when the room temperature reaches the set temperature, and automatically when the room temperature falls below the set temperature again. In save operation where combustion starts,
The display in the second color is continued even if the fire is automatically extinguished until the save operation is canceled.

In a fourth aspect of the present invention, the display in the second color for displaying the save operation is turned off by an operation of turning off an operation switch and automatic extinguishing by a timer for forgetting to turn off. Are continuously stored, and when the operation is resumed, the display in the second color is resumed in the save operation mode.

[0008]

According to the first aspect of the present invention, the burner unit 2 for performing combustion and the normal operation mode are displayed in a first color, and the burner unit 2 is operated in an operation mode other than the normal operation mode. Is displayed in a second color, and the color display 54 is turned on by the operation switch 42 and simultaneously with the internal green LED 5
9 is turned on to indicate that it is in the normal operation mode (displayed in the first color), and simultaneously with the ON operation of the save operation switch 44 which is a mode selection switch, the internal green LED 5 is turned on.
9 is turned off, and the blue LED 60 is turned on to indicate that the operation mode is other than the normal operation mode (displayed in the second color). Since it is displayed in a different color, it is possible to confirm which driving mode is currently being operated from a distance, and it is very easy to understand by distinguishing by color.

According to the second aspect of the invention, the normal operation mode is an operation by the forgetting to extinguish timer means which automatically extinguishes the fire after a predetermined time has elapsed from the start of the operation. Since the display mode is changed in the color of, the automatic fire extinguishing by the timer means 34 for forgetting to extinguish can be easily known even from a place away from the appliance, and the usability is good.

According to the third aspect of the invention, in the operation modes other than the normal operation mode, the fire is automatically extinguished when the room temperature reaches the set temperature, and the combustion is automatically started when the room temperature falls below the set temperature again. Save operation mode,
Since the display in the second color by the lighting of the blue LED 60 is assumed to continue until the save operation mode is canceled even if the fire is automatically extinguished, the save operation mode is continued even if the combustion is extinguished. The fact that the combustion is automatically started when the room temperature falls below the set temperature again can be recognized by the continuous display in the second color, so that there is no fear of erroneous operation in a hurry and the device can be used with confidence.

According to the fourth aspect of the present invention, the display in the second color by turning on the blue LED 60 indicating the save operation is turned off by the operation of turning off the operation switch 42 and the automatic fire extinguishing by the timer means 34 for forgetting to turn off. However, the save operation mode is continuously stored in the control device 32. When the operation switch 42 is turned on to resume the operation, the operation is resumed in the save operation mode, and the blue LED 60 is turned on and the display in the second color is resumed. Thus, even if the fire is extinguished and turned off, the display in the second color is restarted simultaneously with the restart of the operation until the operation mode is released, and the current operation mode can be reliably displayed. Things.

[0012]

Next, an embodiment of the invention according to the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a warm air heater main body, 2 denotes an operation unit provided at an upper part of a front surface, 3 denotes a hot air outlet to which a louver 4 for guiding hot air is attached, and 5 denotes a warm air inlet 6 on a rear surface. A convection fan mounted via a fan guard 7, a blower box 8 communicating the warm air inlet 6 and the warm air outlet 3, 9 is a burner provided with a burner head 10 protruding into the blower box 8. Part 11 is the burner head 1
Reference numeral 12 denotes a heat shield plate disposed directly above the combustion cylinder 11 in the blower box 8.

The exterior body of the equipment main body 1 is constructed by fixing a front panel 13 covering the front surface, an upper surface plate 14 covering the upper surface, and a rear plate 15 covering the side surface and the back surface on a table 16. I have.

Next, 17 is a cartridge type tank for supplying liquid fuel such as kerosene, 18 is a fixed tank for temporarily storing the fuel from this cartridge type tank 17, 19
Is a float switch that is turned on when the amount of fuel in the fixed tank 18 becomes equal to or less than a predetermined amount, 20 is an electromagnetic pump that pressure-feeds the fuel in the fixed tank 18 to the burner unit 9 through an oil feed pipe 21 and an oil feed nozzle 22, and 23 is This is a combustion fan that blows combustion air through a blower tube 24.

Reference numeral 25 denotes a vaporizer for vaporizing the liquid fuel; 26, a vaporization heater for heating the vaporizer 25 to a temperature at which the fuel can be vaporized; 27, a vaporization temperature sensor for detecting the temperature of the vaporizer 25; A flame hole network provided on the outer periphery of the head 8, a heat recovery ring 29 for recovering combustion heat to the vaporizer 25, an igniter 30 for spark discharge to a vaporized gas to ignite, and a frame 31 for monitoring the state of the flame It is a rod.

Reference numeral 32 denotes a control device for controlling the apparatus main body 1, which is constituted mainly by a microcomputer (not shown). Reference numeral 33 denotes an operation unit base provided on the operation unit 2, and various switches and display lamps provided on the operation unit 2 are connected to the control device 32 via the operation unit base 33.

Numeral 34 designates a normal operation mode for counting the time from the start of operation and automatically extinguishing the fire when a predetermined time (3 hours) elapses. The numeral 35 designates a normal operation mode. A good morning timer means for starting the operation of the equipment and automatically extinguishing the fire when a predetermined time (1 hour) has elapsed from the start of the operation, and 36 starts counting the number of drive pulses of the electromagnetic pump 20 when the remaining fuel amount becomes a predetermined amount or less, This is an out-of-fuel extinguishing means that automatically extinguishes the fire when the counted number of pulses exceeds a predetermined value. The out-of-fuel extinguishing means 36 automatically extinguishes the fire after a lapse of a predetermined time after the remaining fuel amount has become equal to or less than a predetermined amount, or has a remaining fuel amount equal to or less than a second predetermined amount which is smaller than the predetermined amount. This may be detected by the second float switch to automatically extinguish the fire.

Reference numeral 37 denotes a save operation means constituting an operation mode other than the normal operation mode, and a room temperature detected by a room temperature sensor 38 comprising a thermistor and an up switch 39.
Is compared with a set temperature arbitrarily set by a set temperature means 41 comprising a down switch 40. When the room temperature becomes higher than the set temperature by 3 ° C., the combustion is automatically extinguished, and the room temperature becomes lower than the set temperature by 0.3. When the temperature drops below ℃, combustion is automatically started, enabling energy-saving operation in which wasteful consumption of fuel is prevented.

The operation unit 2 includes an operation switch 42 for instructing operation / stop of the equipment, and the timer 3
The operation of the extension switch 43 for resetting the count time of No. 4 and restarting the count of the predetermined time (three hours) and the operation of the timer means for forgetting to turn off the normal operation mode, the save operation means other than the normal mode. A save operation switch 44 for switching to operation by 37, a timer switch 45 for operating the good morning timer means 35, an operation lamp 46 provided close to the operation switch 42, and a close switch provided to the save operation switch 44 Save operation lamp 47 and timer switch 4
A number display unit 50 that displays a room temperature and a set temperature in an operating state, displays a time by switching a display changeover switch 49, and enables setting of a timer means 35; A refueling character display section 51 for displaying the word “refueling” and a buzzer 52 that emits a sound when each switch is operated or any warning is provided. This is provided in the vessel 53.

Numeral 54 denotes a color display provided at a central portion between the operation unit 2 and the hot air outlet 3 during operation in the normal operation mode by the timer means 34 for forgetting to turn off, or a timer set by the timer means 35 for good morning. When the time comes, the fire extinguishing is announced by illuminating the backward green color with a visually reversing action and flashing green more than a certain time before the automatic fire extinguishing by the timer means 34 and the good morning timer means 35. In addition, when the remaining fuel amount is equal to or less than the predetermined amount and the fire is extinguished by the fuel-out fire extinguishing means 36, the light is lit or flashing in red, which is an advance color having an advance action, so that the color is more conspicuous. It encourages the user to refuel.

Further, when the save operation means 37 is operating in an operation mode other than the normal operation mode, the color indicator 54 is illuminated in blue, which is a backward color having a visually reversing action like green, and the room temperature is equal to the set temperature. It keeps lighting even after the automatic fire extinguishing that has reached the above, distinguishes between running in normal operation mode by the difference in color, and keeps lighting even after automatic fire extinguishing, so the save driving mode is continued even if the fire is extinguished When the mode is released by pressing the save operation switch 44, the display turns green during combustion, turns off during fire extinguishing, and turns off when the room temperature falls below the set temperature. In the OFF operation of 42 and the automatic fire extinguishing by the timer means 34 for forgetting to extinguish, the blue light is turned off while the save operation mode is stored. Operation and the blue light.

The color indicator 54 is turned off by turning on the timer switch 45 during the save operation mode, turning off the blue light, restarting the blue light simultaneously with the start of the preheating at the set time, and the predetermined time ( (1 hour) The blue light flashes a certain time before the automatic extinguishing after a lapse of one hour, and the light turns off after a lapse of a predetermined time.

The color display 54 includes a light emitting portion 55 that emits light in three colors of red, green, and blue, and a diffusion lens 56 that diffuses the light from the light emitting portion 55 to the surroundings.

The light-emitting section 55 has three red LEDs 58 and three green LEDs 59 arranged alternately and annularly on a light-emitting section base 57, and a blue LED 60 having a higher luminance than the red LED 58 and the green LED 59 is provided at the center thereof. The light emitting portion 55 is provided in the upper space of the blower box 8 and has a hole 63 of a mounting bracket 62 hanging from a lower end of a mounting bracket / operating section mounting plate 61 of the front panel 13 mounted on a front edge of the upper surface plate 14.
The claw portion 65 of the base mounting member 64 to which the light emitting unit base 57 is mounted is fixed. The light emitting unit base 57 is connected to a base (not shown) of the control device 32 by a lead wire.

The diffusion lens 56 is attached to an opening 66 provided at a position facing the light-emitting portion 55 of the front panel 13 by hooking a locking claw 67. The front side has a substantially hemispherical shape that rises smoothly from the periphery to the center so that it can protrude greatly so that it can be confirmed from the top surface, and the back surface is a quadrangular pyramid within a range slightly smaller than the periphery. A plurality of concave portions 68 are provided as a prism, and fine unevenness is provided by embossing to form a diffusing surface 69 for uniformly diffusing light to the front side, and the light emitting portion 55 received on the back side is dispersed from a plurality of LEDs. The diffused light is substantially uniformly diffused to the hemispherical front side, so that the visibility from the front of the device is improved and the visibility from above and from the side is also improved.

As described above, the color display 54 is connected to the device main body 1.
Since the light-emitting portion 55 is divided into a light-emitting portion 55 on the side and a diffusion lens 56 on the front panel 13 side and the space therebetween is opened,
The heat generated by the light emitting unit 55 is not trapped and the diffusion lens 56
In addition, it is possible to connect the lead wire of the light emitting section 55 to the board of the control device 32 before attaching the front panel 13 and then attach the diffusion lens 56 to the front panel 13 during assembly. As a result, the unstable operation of connecting the lead wires while holding the front panel 13 close to the device body 1 side is eliminated, and assembling is facilitated and productivity is improved, and disassembly is improved by a reverse procedure. Therefore, maintainability is also improved.

Next, the operation of this embodiment will be described with reference to FIGS.
3 will be described.

First, when the operation switch 42 is depressed (step 1, hereinafter abbreviated as S1), the timer 34 for forgetting to turn off starts counting (S2), and a beep 52 for confirming the ON operation is emitted from the buzzer 52 (S3). Then, the operation lamp 46 provided near the operation switch 42 starts blinking at a slow blinking cycle (0.5 second on / 0.5 second off) (S4), and it is detected whether the save operation switch 44 is turned on (S4). S5), Y
In the ES, the process proceeds to the flowchart A, and in the case of NO, the green LED 59 of the color display 54 is turned on (S6), and then the energization of the vaporization heater 26 is started to start the preheating of the vaporizer 25 (S7), and the operation is received by a confirmation sound. The fact that the operation has been performed and the blinking state of the operation lamp 46 indicate that the vaporizer 25 has entered the preheating state.

Further, when the vaporization temperature sensor 27 detects the ignitable temperature and the preheating is completed (S8), the operation lamp 46
Is changed from blinking to lighting (S9), and the combustion fan 2
3. The ignition operation is performed by driving the electromagnetic pump 20, the igniter 30, and the convection fan 5 (S10). In this way, the color display 54 is lit in the backward color of green without visually annoying. The fact that the vehicle is operating in the normal operation mode is displayed, and the process proceeds to the flowchart B.

Next, in the flowchart A, if the save operation switch 44 is turned on in S5, that is, the operation is being performed in an operation mode other than the normal operation mode, the blue LED 60 of the color display 54 is turned on to display. (S1
1) Then, the vaporization heater 26 starts energization and the vaporizer 25
Is started (S12), and when the vaporization temperature sensor 27 detects the ignitable temperature and the preheating is completed (S13), the operation lamp 46 is changed from blinking to lighting (S14).
The combustion fan 23, the electromagnetic pump 20, the igniter 30, and the convection fan 5 are driven to perform an ignition operation in the same manner as in the normal operation mode (S15). By illuminating the different blue receding colors, the fact that a save operation other than the normal operation mode is being performed is displayed so as to be visible even from a distance, without being visually annoying.

Then, the process proceeds to S16, where the room temperature is compared with the set temperature, and it is determined whether the room temperature is higher than the set temperature by 3 ° C. or more. Is turned off,
If NO, the combustion is continued and the process proceeds to the flowchart B.
If YES, the blue color of the color display 54 is turned off (S1).
8) The green color of the color display 54 is turned on (S19),
Thereafter, the process proceeds to the flowchart B.

If the room temperature is higher than the set temperature by 3 ° C. or more in S16, the fire is automatically extinguished in YES (S20) and the operation lamp 46
Changes from on to off (S21), indicating that combustion has stopped, and the color indicator 54 continuously lights up in blue. In step S22, it is determined whether the save operation switch 44 has been turned off. If YES, the process proceeds to the flowchart E, and the operation state is shifted to the ignition operation for starting combustion. Proceeding to S23, the room temperature is compared with the set temperature. If the room temperature falls below the set temperature by 0.3 ° C. or less, combustion is automatically restarted with YES (S24), and the operation lamp 46 is turned on again to start combustion. The fact that the operation has been restarted is displayed (S25), and the process returns to S16. However, the color display 54 is still in the blue lighting state at this time.

Next, in the flowchart B, since the save operation mode is accepted at any time during the operation in the normal operation mode, it is determined in S26 whether the save operation switch 44 has been turned on. 19 is turned on (S
27).

At S27, the fuel amount is changed to the float switch 1
If the count has not decreased to the level at which 9 turns on, it is checked whether the count time of the timer for forgetting to extinguish has reached 15 minutes before the fire extinguishing time (S28). A beep sound is generated (S29) and the green LED 59 is turned on during the normal operation mode of the color display 54, and the blue LED 60 is turned on slowly during the save operation mode (2 seconds on / off).
(OFF for one second) (S30), and blinks (OFF for 0.5 seconds / OFF for 0.5 seconds) the character "OFF" on the segment of the numeral display section 50 that displayed the room temperature (S31). ,
The sound of the buzzer 52, the light of the color display 54, and the character display of the numeral display unit 50 reliably inform the user that the automatic fire extinguishing is near.

Then, when the count time of the forgotten fire timer means 34 reaches 10 minutes before the fire extinguishing time (S32),
The buzzer 52 generates an alarm sound "PPI" again (S33), and notifies the user that the automatic fire extinguisher is near.

Further, when the count time of the timer for forgetting to extinguish the timer 34 reaches three minutes before the fire extinguishing time (S34), the buzzer 52 emits a notification sound "PIP" (S35) again, and During the normal operation mode of the display unit 54, the green LED 59 is changed from the slow blinking period to the fast blinking period (1 second on / 0.5 second off) during the save operation mode, and the green LED 59 is blinked (S3).
6) It is possible to visually inform the user that the remaining time until the automatic fire extinguishing has become short, so that the user can easily understand it.

Then, when the count time of the timer for forgetting to extinguish the timer 34 counts the extinguishing time (S37), the buzzer 52 generates a notification sound "PPI" (S38) to sound that the automatic extinguishing is performed. And the green LED 59 during the normal operation mode of the color display 54,
During the save operation, the blue LED 60 is turned off (S3
9) Turn off the operation lamp 46 (S40), change the “OFF” character display of the numeric display unit 50 from the blinking state to the lighting state (S41), and turn off the combustion fan 23, the electromagnetic pump 20, and the convection fan 5. The drive is stopped to perform a fire extinguishing operation (S42).

After performing the fire extinguishing operation, the operation switch 42
Is turned off (S43), the confirmation sound of the off operation "beep"
Is generated from the buzzer 52 (S44), and the numerical display 50
Is turned off, the clock is displayed (S4
5) Then, the process returns to the start in the flowchart E. In this manner, the display of the character "OFF" is continued until the operation switch 42 is turned off, so that it is possible to know that the operation of the device has been extinguished by the timer means 34 after the fire has been extinguished.

Next, the flowchart in the case where the float switch 19 is turned on when the remaining fuel amount in the fixed tank 18 is equal to or less than the predetermined amount in S27 will be described. The buzzer 52 emits a beep sound three times in succession. The green LED 59 of the color display 54 is turned off (S47), and at the same time, the red LED of the color display 54 is turned off.
58 starts flashing at a slow flashing cycle (2 seconds on / 1 second off) (S48), and further starts flashing display (1 second on / 0.5 second off) on the refueling character display section 51. (S49).

As described above, by changing the display on the color display 54 from the backward green color in the normal operation mode and the backward blue color in the save operation mode to the forward red color, the remaining fuel amount is changed. Is displayed visually more positively and in an easy-to-understand manner, and furthermore, the sound from the buzzer 52, the light from the color display 54 and the refueling character display section 5
The display of the word "refueling" by 1 surely informs the user that the automatic fire extinguishing due to running out of fuel is near and prompts the user to refuel.

Next, counting of the number of driving pulses of the electromagnetic pump 20 is started (S50), and it is determined whether or not the counted number of pulses is equal to or more than a predetermined value (S51). The predetermined number of pulses to be counted is set so that the fuel in the fixed tank 18 does not become completely empty, and the combustion can be continued for about 20 minutes in strong combustion and about 40 minutes in weak combustion.

When the counted number of pulses reaches a predetermined value (Yes in S51), the buzzer 52 generates a beep sound three consecutive times (S5).
2) The flashing of the red LED 58 of the color display 54 is changed from a slow blinking to a fast blinking (1 second on / 0.5 second off) (S53), and the operation lamp 46 is quickly turned on. After changing to a blinking state with a blinking cycle (0.2 seconds on / 0.2 seconds off) (S54), the user is notified visually and easily of the automatic fire extinguishing due to running out of fuel. 23, the electromagnetic pump 20, and the convection fan 5 are stopped to perform a fire extinguishing operation (S55).

After performing the fire extinguishing operation, the red LED on the color display 54 is maintained until the operation switch 42 is turned off.
58 and the operation lamp 46 and the refueling character display section 51 are continuously flashing and displaying the characters "refueling", so that the red LED 58 of the color display 54 continues to flash rapidly even after the operation is completed, and Even when the user is not near the device main body 1, it is possible to clearly display that the operation has stopped due to running out of fuel even from a distant position, and it is possible to strongly complain that refueling is required. , Easy to use.

Next, when the operation switch 42 is turned off (S56), a confirmation sound "pip" for the off operation is generated (S56).
57), the red LED 58, the operation lamp 46, and the refueling character display section 51 of the color display 54 are turned off (S5).
8, S59, S60), when the user does not intend to refuel, the operation can be turned off by turning off the operation switch 42, so that the red LED of the color display 54
It is possible to easily cope with the case where the blinking display of 58 is visually annoying and disturbing.

As described above, the advance notice of the automatic fire extinguishing after the elapse of a predetermined time from the start of the operation is made by blinking the color indicator 54 in green or blue in reverse according to the operation mode at that time, and the remaining fuel amount The warning of the automatic fire extinguishing due to the decrease in the number of colors was made because the color indicator 54 flashed red (advancing colors such as red, yellow, etc.) to appeal to the sight and to be able to call attention more aggressively. Display 54
By confirming the coloration of, the cause of the warning of automatic fire extinguishing together with the operation mode at that time can be clearly understood, and the user can take appropriate measures such as pressing the extension switch 43 or performing refueling, which is convenient. .

Next, it is conceivable that the fire extinguishing timer means 34 automatically extinguishes the fire within about 20 to 40 minutes from when the float switch 19 is turned on until the fire is extinguished.
The operation at this time will be described.

Next, it is determined whether or not the number of pulses counted in S51 is equal to or more than a predetermined value.
(No at 51), it is checked whether the time counted by the forgotten-off timer means 34 is 15 minutes before the fire extinguishing time (S61).

If the count time of this timer for forgetting to extinguish 34 is 15 minutes before the extinguishing time (Y in S61)
es), the buzzer 52 emits an alarm sound "PIP" (S62), and the room temperature is displayed while the red LED 58 continues to blink slowly without changing the display of the color display 54. “OF” is displayed in the segment of the display unit 50.
The character "F" is displayed in a blinking manner (S63), and the user is notified that the automatic fire extinguishing by the timer for forgetting to extinguish 34 is imminent.

Then, the flow returns to S51 in the flowchart of G, and since the number of pulses has not reached the predetermined value, the flow proceeds to S61.
Since the result in S61 is No, the process proceeds to S64, and similarly, the count time of the timer means 34 for forgetting to extinguish is set to 10 times the extinguishing time.
Check if it is minutes ago. At 10 minutes before the fire extinguishing time, the display of the color display 54 is not changed and the buzzer 5 continues to blink slowly with the red LED 58 as in 15 minutes before.
2 emits a notification sound "PIP" (S
65) Notify the user that automatic fire extinguishing by the timer for forgetting to extinguish 34 is imminent. The same applies three minutes before the fire extinguishing time. (S66)

Then, when the count time of the timer for forgetting to extinguish timer 34 reaches the extinguishing time (S67), the buzzer 52 emits an alarm sound "PPI" (S6).
8) The red LED 58 and the operation lamp 46 of the color display 54 are turned off (S69, S70), and the “OFF” character display of the numeric display unit 50 is changed from blinking to lighting (S7).
1) If it is notified that the automatic fire extinguishing is performed by the timer means 34 for forgetting to extinguish, the combustion fan 23 and the electromagnetic pump 2
0, the convection fan 5 is stopped to perform a fire extinguishing operation (S7).
2).

After performing the fire extinguishing operation, the operation switch 42
Is turned off (S73), the confirmation sound of the off operation "beep"
Is generated (S74), and the "OFF" character display on the number display unit 50 and the refueling character display unit 51 are turned off (S75,
S76). As described above, since the "OFF" character display and the refueling character display portion 51 continue until the operation switch 42 is turned off, the operation of the device has been extinguished by the timer means 34 for forgetting to extinguish, and the remaining fuel amount has decreased. You can know that after the fire is extinguished.

If the number of pulses of the electromagnetic pump 20 becomes equal to or more than a predetermined value before the fire extinguishing time of the timer means 34 has elapsed (S61 to S67) after the alarm sound is emitted by the timer means 34 for forgetting to extinguish. Is Yes in S51.
The operations of S52 to S60 are performed, and the color indicator 54 is caused to blink in red at a fast blinking cycle, so that the fact that the operation has been stopped due to fuel shortage is clearly displayed even from a remote position.

In step S27, the float switch 19
Before turning on, the alarm sound is emitted by the forgetting to turn off timer means 34, and before the fire extinguishing time of the forgetting to turn off timer means 34 comes (S28 to S37), the remaining fuel amount decreases and the float switch 19 turns on (S27). In step S46, the color indicator 54 is flashed in a slow red flashing cycle, and the fuel is exhausted (Yes in S51) or three hours have passed since the start of operation (Yes in S67), whichever is earlier. Perform fire extinguishing control.

As described above, once the color display 54 starts blinking in green during the normal operation mode and blue in the save operation mode, when the remaining fuel amount becomes small, the color display 54 is displayed. Is changed to a red blinking display, and the priority is displayed on the color display 54 with priority given to the fact that the remaining fuel amount is smaller than the fire extinguishing notice by the timer means 34 for forgetting to extinguish, so that the remaining fuel amount is reduced. You can know for sure.

Further, when the fire is extinguished by the fuel exhaustion / extinguishing means 36, if the fuel is not refueled, it will immediately disappear even if the operation is started again. 54 flashes rapidly in red, which is the advance color, to visually and positively notify that the fire has been extinguished due to lack of fuel, and when the fire has been extinguished by the timer means 34, the operation switch 42 is turned on again. Then, the operation can be restarted and the operation can be continued without the need for another return operation, so that the color display 54 is turned off.

Next, in S26, it is determined whether or not the save operation switch 44 has been turned on, and the flow chart for proceeding with YES will be described. The color display 54 is switched from the normal operation mode to the save operation mode. First, the currently lit green LED 59 is turned off (S77), and the blue L
The ED 60 is turned on (S78).

Then, the process proceeds to S79, where the room temperature is compared with the set temperature, and it is determined whether the room temperature is higher than the set temperature by 3 ° C. or more. Is turned off,
If NO, the combustion is continued and the process proceeds to the flowchart B.
If YES, the blue color of the color display 54 is turned off (S8).
1) The green color of the color display 54 is turned on (S82),
Thereafter, the process proceeds to the flowchart B.

If the room temperature is higher than the set temperature by 3 ° C. or more in S79, the fire is automatically extinguished in YES (S83), and the operation lamp 46
Changes from on to off (S84), indicating that the combustion has stopped, and the color indicator 54 continuously emits blue light. In step S85, it is determined whether the save operation switch 44 has been turned off. If YES, the process proceeds to the flowchart E, and the operation state is shifted to the ignition operation for starting combustion. Proceeding to S86, the room temperature is compared with the set temperature, and when the room temperature falls below the set temperature by 0.3 ° C. or less, combustion is automatically restarted with YES (S87), and the operation lamp 46 is turned on again to start combustion. The fact that the operation has been restarted is displayed (S88), and the process returns to S79. The color display 54 is still in the blue lighting state at this time.

Next, the timer switch 45 is turned on,
The case where the good morning timer means 35 is set will be described. When the timer switch 45 is turned on after setting the time at which the operation is to be started (S89), a confirmation sound "pip" for the ON operation is emitted from the buzzer 52 (S90). Timer lamp 48 provided near timer switch 45
Is turned on (S91).

When the time reaches the timer time (S9)
2) The operation lamp 46 is turned on and off slowly (0.5 seconds on /
(Off for 0.5 second) and starts flashing (S93), and the vaporizing heater 2
6 and the preheating of the vaporizer 25 is started (S9).
4) Further, it is determined whether the save operation switch 44 is turned on (S95). If YES, the operation is started in the save operation mode, so that the blue LED 60 on the color display 54 is activated.
Is turned on (S96), and in the case of NO, the operation is started in the normal operation mode, so that the green LED 59 of the color display 54 is turned on (S97). To display.

Next, when the evaporating temperature sensor 27 detects the ignitable temperature and the preheating is completed (S98), the operation lamp 46 changes from blinking to lighting (S99), and the combustion fan 2
3. The electromagnetic pump 20, the igniter 30, and the convection fan 5 are driven to perform an ignition operation (S100), and a one-hour timer from the start of operation (represented as a timer for forgotten to turn off).
1 is started (S101), and thereafter, the count-down time of the timer for forgetting to erase is 1 hour, except that the count time is 1 hour.
0, which is the same as S27 and subsequent steps, and a description thereof will be omitted.

Note that the morning timer means 35 is released by turning off the timer switch 45, and is not released by turning off the operation switch 42. When the timer time of the next day comes, the steps from S92 are repeated. It works.

As described above, the color display 54 lights in green during the normal operation mode, lights in blue during the save operation mode other than the normal operation mode, and displays the difference between the operation modes by changing the lighting color. The present operation mode can be easily known even from a distance, thereby improving usability.

At the time of automatic fire extinguishing by the timer means 34 for forgetting to extinguish in the normal operation mode, the normal operation mode itself is automatically canceled. Therefore, the green display on the color display 54 is turned off, and the mode itself is turned off. Is released and the user can be notified that the fire has been extinguished.On the other hand, in the automatic fire extinguishing when the room temperature in the save operation mode has reached the set temperature,
By continuously displaying the blue lighting display of the color display 54, the mode itself is not released, and if the room temperature falls below the set temperature, the combustion is automatically started again. Since it is possible to notify the user and the fire is extinguished, an erroneous operation such as turning on the operation switch 42 in a hurry can be surely prevented.

Further, when the remaining fuel amount is equal to or less than the predetermined amount, the color indicator 54 lights up green in the normal operation mode or red which is a third color different from blue in the save operation mode. It is possible to clearly notify that it is necessary and to continue to display this color even after the automatic fire extinguishing due to running out of fuel, it will be possible to clearly recognize the cause of the automatic fire extinguishing even from a distant position. Can be
It is easy to use.

Further, the first color and the second color indicating that the vehicle is being operated are set to visually retreating colors such as green and blue, so that the remaining fuel amount is reduced or the fuel amount is reduced. Since the third color that indicates that the fire was automatically extinguished due to a shortage was set as an advanced color having a visual advancing action such as red or yellow, it can be displayed without visually annoying that the vehicle is being driven, The more recognizable colors you need to refuel, the more visually appealing you can be surely notified.

In this embodiment, the operation mode other than the normal operation mode is only the save operation. However, the present invention is not limited to this. For example, when the set temperature is reached, the detected room temperature or the set temperature is automatically changed. Energy saving operation that fluctuates the combustion amount periodically, small room operation that varies the maximum combustion amount according to the size of the room, or a combination of these operations may be used. Needless to say, the display may be performed by lighting the device 54 in a different color.

[0069]

As described above, according to the present invention, it is possible to easily know which driving mode is currently being operated by looking at the lighting display color of the color display even from a distance, and to select it by oneself. The user can easily confirm the operation mode without forgetting the operation mode that has been used or by looking into the small operation unit of the appliance, and is extremely convenient to use.

Further, if the normal operation mode is set to the operation by means of a timer for forgetting to extinguish, which automatically extinguishes the fire after a predetermined time has elapsed from the start of operation, and the display mode in the first color is changed when the automatic extinguishing is performed, the extinguishing by automatic extinguishing is performed. It is easy to know that the operation by the forgetting timer means has been released, so that it can be used with confidence.

An operation mode other than the normal operation mode is a save operation in which the fire is automatically extinguished when the room temperature reaches the set temperature, and the combustion is automatically started when the room temperature falls below the set temperature again. The display in color is continuously displayed even if the fire is automatically extinguished, and if it is changed only after the save operation is canceled, it is ensured that erroneous operation such as turning on the operation switch in a hurry knowing the automatic fire extinguishing It is possible to easily know that the operation mode is maintained even if combustion is not performed.

Further, the display in the second color indicating the save operation is turned off by the operation of turning off the operation switch and the automatic fire extinguishing by the timer means for forgetting to turn off, but the save operation mode is continuously stored and the operation restart. Sometimes the display in the second color is resumed in the save operation mode, and the display in the second color is resumed. The operation mode is restarted at the same time as the restart, and the current operation mode can be reliably displayed.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a hot air heater according to one embodiment of the present invention.

FIG. 2 is a sectional view of the main body.

FIG. 3 is a sectional view of the combustion system.

FIG. 4 is a front view of the operation unit.

FIG. 5 is a configuration diagram of the control system.

FIG. 6 is a front view of the display board in an attached state.

FIG. 7 is an explanatory diagram of the diffusion lens.

FIG. 8 is a flowchart showing the operation.

FIG. 9 is a flowchart showing the operation.

FIG. 10 is a flowchart showing the operation.

FIG. 11 is a flowchart showing the operation.

FIG. 12 is a flowchart showing the operation.

FIG. 13 is a flowchart showing the operation.

[Explanation of symbols]

 9 Burner section 32 Control device 34 Timer for forgetting to turn off 37 Save operation means 42 Operation switch 44 Save operation switch 54 Color indicator 59 Green LED 60 Blue LED

Claims (4)

[Claims] 1. A burner section for performing combustion, a normal operation mode is indicated by a first color, and an operation mode other than the normal operation mode is indicated by a second color. A combustion device comprising: a color display; 2. The normal operation mode is an operation in which the fire extinguisher timer means automatically extinguishes the fire when a predetermined time elapses from the start of the operation, and changes the display mode in the first color when the fire is automatically extinguished. 2. The combustion device according to 1. 3. An operation mode other than the normal operation mode is automatically extinguished when the room temperature reaches a set temperature,
In a save operation in which combustion is automatically started when the room temperature falls below the set temperature again, the display in the second color is continued until the save operation is canceled even if the fire is automatically extinguished. Item 3. The combustion device according to Item 1 or 2. 4. The display in the second color for displaying the save operation is turned off by the operation of turning off the operation switch and the automatic fire extinguishing by the timer for forgetting to extinguish, but the save operation mode is continuously stored. 4. The combustion apparatus according to claim 1, wherein when the operation is restarted, the display in the second color is restarted in the save operation mode.