JP4146409B2 - Combustion appliances - Google Patents

Description

  The present invention relates to a combustion appliance that performs heating or the like using heat generated by combustion of fuel oil.

Conventionally, in this type, a combustion fan that supplies combustion air to the burner part and a fixed tank that supplies fuel oil once stored in the burner part are arranged side by side on a table. there were. (For example, refer to Patent Document 1.)
Japanese Patent Publication No. 7-104049

  By the way, in this conventional one, there is a large space between the combustion fan and the fixed tank, and even if the equipment is made compact by eliminating this space, the size of the fan case and the fixed tank of the combustion fan remains as it is, No further compaction was possible.

This invention pays attention to this point, and in order to solve the above-mentioned problem, in particular, the structure thereof includes a fan case of a combustion fan that supplies combustion air to the burner part, and a fixed tank that supplies fuel oil once stored in the burner part. In the case where the fan case is arranged side by side on the pedestal, the fan case is flattened and installed on the pedestal with the flat surface, and the fixed tank is gradually expanded upward, and further fixed to the fan case. The tank is installed such that one side of the fan case is in contact with the lower side wall of the fixed tank and partially overlaps when viewed from above .

  According to the present invention, by installing the flat fan case and the fixed tank partially overlapped, it is possible to greatly reduce the width of the instrument, and to provide an extremely compact combustion instrument, Since there is no need to make the fan case or fixed tank small, it can be made compact while maintaining its existing performance and capacity, and it can be used with confidence.

Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a hot air heater main body constituting the combustion appliance, 2 is an operation portion made of synthetic resin provided on the upper part of the front surface, 3 is a hot air outlet to which a louver 4 for guiding the hot air is attached, and 5 is a rear surface A convection fan attached to the hot air inlet 6 via a fan guard 7, 8 a blower box communicating the hot air intake 6 and the hot air blower outlet 3, and 9 a burner head 10 in the blower box 8. A burner portion provided so as to protrude, 11 is a combustion cylinder that surrounds the burner head 10 to form a combustion space, and 12 is a heat shield plate disposed in the blower box 8 directly above the combustion cylinder 11. It is.

  The exterior body of the device main body 1 is configured by fixing a front panel 13 covering the front surface, an upper surface plate 14 covering the upper surface, and a rear surface plate 15 covering the side surfaces and the rear surface, on a stand 16.

  Next, 17 is a cartridge type tank that supplies liquid fuel such as kerosene, 18 is a fixed tank that temporarily stores fuel oil from the cartridge type tank 17, and 19 is turned on when the amount of fuel in the fixed tank 18 falls below a predetermined amount. A float switch 20 is an electromagnetic pump that pumps 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 a combustion fan that blows combustion air through a blow pipe 24. .

  The fixed tank 18 has a bowl shape that gradually spreads upward, and is installed on the cradle 16 of the apparatus main body 1. The fan case 25 of the combustion fan 23 is flat and has a flat surface side. The one side of the fan case 25 is in contact with the lower side wall of the mortar-shaped fixed tank 18 and appears to be partially polymerized when viewed from above. Thus, an extremely compact combustion appliance can be provided.

  26 is a vaporizer that vaporizes liquid fuel, 27 is a vaporization heater that heats the vaporizer 26 to a temperature at which the fuel can be vaporized, 28 is a vaporization temperature sensor that detects the temperature of the vaporizer 26, and 29 is a burner head 8. A flame hole network provided on the outer periphery, 30 is a heat recovery ring that recovers combustion heat to the vaporizer 26, 31 is an igniter that sparks and ignites vaporized gas, and 32 is a flame rod that monitors the state of the flame. .

  Reference numeral 33 denotes a control device that controls the device main body 1 and is configured around a microcomputer (not shown). Reference numeral 34 denotes an operation unit base provided in the operation unit 2, and various switches and display lamps provided in the operation unit 2 are connected to the control device 33 via the operation unit base 34.

  35 is a forgetting-off timer means for automatically extinguishing the fire when a predetermined time (3 hours) elapses after counting the time from the start of operation, and 36 starts the operation of the device at a preset timer time, and the predetermined time ( A good morning timer means that the fire extinguishes automatically after 1 hour). 37 starts counting the number of driving pulses of the electromagnetic pump 20 when the remaining fuel amount falls below a predetermined amount, and automatically extinguishes when the counted number of pulses exceeds a predetermined value. This is a means to extinguish the fuel. The fuel-extinguishing / extinguishing means 37 can automatically extinguish fire after a certain amount of time has elapsed since the remaining fuel amount becomes a predetermined amount or less, or the remaining fuel amount becomes a second predetermined amount or less which is less than the predetermined amount. This may be automatically extinguished by detecting this with a second float switch.

  In the center of the operation unit 2, a display unit 38 for displaying room temperature, set temperature, current time, timer time, and warning characters is positioned. On the right side of the display unit 38, direct combustion that is often used is used. An operation switch 39 for instructing operation / stop of the device with a related switch, and an extension switch 40 for resetting the count time of the forgetting-off timer means 35 and starting counting for a predetermined time (3 hours) again, The operation switch 39 is placed up and down, and the up switch 41 and down switch 42 for changing the set temperature and the timer time are set up, and the up switch 41 for changing the set value up and down is set up. Down switches 42 for changing the setting value and changing the time are arranged up and down.

  Further, on the left side of the display unit 38, a display changeover switch 43 for switching the display of the display unit 38 between temperature display, time display, and timer time display, and the operation instruction of the operation switch 39 by keeping the vaporizer 26 warm. A 5-second ignition switch 44 for igniting in 5 seconds is arranged up and down with the display changeover switch 43 facing upward, a timer switch 45 for starting operation at a set time, and an operation switch for preventing child mischief A child lock switch 46 that accepts only 39 stop instructions is arranged vertically with the timer switch 45 facing up.

  The operation switch 39 is provided with an operation lamp 47, the timer switch 45 is provided with a timer lamp 48, and further provided with a buzzer 49 that emits a sound when each switch is operated or when any warning is given. It is.

  Reference numeral 50 denotes a color display provided in the form of a horizontally long bar below the display unit 38 in the operation unit 2. During operation, the color display is lit in a green color with a visually reverse action, and the forgetting to turn off timer means 35 or Good morning timer means 36 blinks in green for a certain time before automatic fire extinguishing, and when the remaining fuel amount becomes less than a predetermined amount and extinguishes fire by means of out of fuel extinguishing means 37, there is a visual advancing action. By turning on and blinking red, which is the advance color, the user is encouraged to refuel with a more visible color.

  The color display 50 includes a light emitting unit 51 that emits red and green light and a diffusion lens 52 that diffuses the light from the light emitting unit 51 to the surroundings.

  The light emitting unit 51 has a through hole 53 formed in the operation unit 2, and two red LEDs 54 and three green LEDs 55 are alternately arranged in a horizontal row on the operation unit base 34 exposed at the bottom of one end thereof. In addition, a diffuser lens 52, which is formed as a prism by providing a large number of quadrangular pyramid-shaped concave portions on the back surface at the other end of the through hole 53, is configured so that the operation unit 2 is flat. The entire operation unit 2 is printed, and a transparent film 56 is attached to a portion facing the diffusing lens 52.

Next, the operation of this embodiment will be described based on the flowcharts of FIGS.
First, when the operation switch 39 is pressed (step 1, hereinafter abbreviated as S1), an ON operation confirmation sound “beep” is emitted from the buzzer 49 (S2), and the operation lamp 47 provided on the operation switch 39 is turned on slowly. Flashing starts at (0.5 seconds on / 0.5 seconds off) (S3), energization of the vaporizing heater 27 is started and preheating of the vaporizer 26 is started (S4), and the operation is accepted by a confirmation sound. From the blinking state of the operation lamp 47, it can be seen that the carburetor 26 has entered the preheating state.

  Next, when preheating is completed by detecting the temperature at which the vaporization temperature sensor 28 can be ignited (S5), the green LED 55 of the color display 50 is turned on (S6), and the operation lamp 47 is changed from blinking to lighting ( S7), the combustion fan 23, the electromagnetic pump 20, the igniter 31, and the convection fan 5 are driven to perform an ignition operation (S8). In this way, the color indicator 50 is lit in a retreat color such as green or blue to indicate that combustion is being performed without being visually noisy.

  When the operation is started, the forgetting-off timer means 35 is operated to start counting the operation time (S9), and then it is checked whether the float switch 19 is turned on (S10).

  If the fuel amount has not decreased to the level at which the float switch 19 is turned on in S10, it is checked whether the count time of the forgetting-off timer means 35 has reached 15 minutes before the fire extinguishing time (S11), and 15 minutes of the fire extinguishing time. If it was before, the buzzer 49 generates a notification sound of “Peep-Peep” (S12), and the green LED 53 of the color display 50 flashes at a slow flashing cycle (2 seconds on / 1 second off) (S13). ), “OFF” is flashed on the segment of the display section 38 that has displayed the room temperature (on for 0.5 seconds / off for 0.5 seconds) (S14), and the sound and color display 50 by the buzzer 49 are displayed. The user is surely informed that the automatic fire extinguishing is near by the light by the character display on the display unit 38.

  When the count time of the forget-to-extinguish timer means 35 reaches 10 minutes before the fire extinguishing time (S15), the buzzer 49 again generates a notification sound "P-Phi-Pie" (S16), and automatic fire extinguishing is close. To the user.

  When the count time of the forget-to-extinguish timer means 35 reaches 3 minutes before the fire extinguishing time (S17), the buzzer 49 generates an alarm sound “Peep-Peep” again (S18), and the color display 50 The green LED 55 is changed from a slow blinking cycle to a fast blinking cycle (on for 1 second / off for 0.5 seconds) and blinked (S19). Can let you know.

  Then, when the count time of the forget-to-extinguish timer means 35 counts the fire extinguishing time (S20), the buzzer 49 generates a beeping sound (P21) (S21) to inform the automatic fire extinguishing by sound. The green LED 55 and the operation lamp 47 of the color display 50 are turned off (S22, S23), the “OFF” character display on the display unit 38 is changed from the blinking state to the lit state (S24), and the combustion fan 23, electromagnetic The pump 20 and the convection fan 5 are stopped and fire extinguishing operation is performed (S25).

  After the fire extinguishing operation is performed, when the operation switch 39 is turned off (S26), a confirmation sound “pipi” of the off operation is generated from the buzzer 49 (S27), the “OFF” character display on the display unit 38 is turned off, The clock is displayed (S28). Since the “OFF” character display is thus continued until the operation switch 39 is turned off, it is possible to know that the operation of the device has been extinguished by the forgetting to turn off timer means 35 even after extinguishing the fire.

  Next, the case where the remaining fuel amount in the fixed tank 18 is equal to or less than the predetermined amount and the float switch 19 is turned on in S10 will be described. The buzzer 49 generates the beep sound continuously three times (S29). The green LED 55 of the color display 50 is turned off (S30), and at the same time, the red LED 54 of the color display 50 starts to flash at a slow flashing cycle (2 seconds on / 1 second off) (S31). "Starts blinking (on for 1 second / off for 0.5 second) (S32).

  In this way, the display of the color indicator 50 is changed from green, which is the reverse color during normal operation, to red, which is the advance color, so that the remaining fuel amount has been visually displayed more positively and clearly. Further, the sound from the buzzer 49, the light from the color display 50 and the display of the word “fuel supply” on the display unit 38 surely inform the user that automatic fire extinguishing due to running out of fuel is near, and prompt the user to refuel.

  Next, counting of the number of drive pulses of the electromagnetic pump 20 is started (S33), and it is determined whether or not the counted number of pulses is equal to or greater than a predetermined value (S34). The predetermined number of pulses to be counted is set so that the fuel in the fixed tank 18 is not completely emptied, and the combustion can be continued for about 20 minutes with strong combustion and about 40 minutes with weak combustion.

  When the number of pulses counted here reaches a predetermined value (Yes in S34), the buzzer 49 generates a beeping sound continuously three times (S35), and the red LED 54 of the color display 50 is delayed. The flashing is changed from the flashing of the cycle to the flashing of the fast cycle (1 second on / 0.5 second off) and starts flashing (S36), and the operation lamp 47 is switched from the lighting state to the fast flashing cycle (0.2 second on / 0.2 second). (S37), and the user is informed of the fact that automatic fire extinguishing due to running out of fuel will be performed, and then the user stops driving the combustion fan 23, the electromagnetic pump 20, and the convection fan 5. A fire extinguishing operation is then performed (S38).

  Even after performing this fire extinguishing operation, until the operation switch 39 is turned off, the red LED 54 and the operation lamp 47 of the color display 50 and the flashing display of the word “fuel” on the display unit 38 are continued. Even after the operation is completed, the red LED 54 of the color display 50 continues to blink rapidly, and even when the user is not near the device main body 1 at the time of fire extinguishing, the fact that the operation has stopped due to running out of fuel has been Can be clearly displayed, and it can appeal strongly that refueling is necessary, making it easy to use.

  Next, when the operation switch 39 is turned off (S39), an off operation confirmation sound “beep” is generated (S40), and the red LED 54, the operation lamp 47 and the display unit 38 of the color display 50 are turned off (S41). , S42, S43), when the user is not willing to refuel, it can be turned off by turning off the operation switch 39, so that the blinking display of the red LED 54 of the color display 50 feels visually noisy. Even when it is in the way, it can easily cope.

  As described above, the automatic fire extinguishing notice after the elapse of a predetermined time from the start of operation is performed by blinking the color indicator 50 in green (backward color such as green, blue, etc.), and automatically when the remaining fuel amount is reduced. The fire extinguishing notice flashes the color display 50 in red (advanced colors such as red and yellow), making it more appealing to the eye and making it possible to call attention more actively, so confirm the color of the color display 50 If this is done, the cause of the automatic fire extinguishing notice can be clearly understood, and the user can take an appropriate action by pressing the extension switch 40 or refueling, which is convenient.

  In addition, an operation lamp 47 that is turned on (flashes) when the operation switch 39 is turned on and is turned off when the operation switch 39 is turned off to display that the vehicle is in operation, and that the vehicle is in combustion and that automatic fire extinguishing is performed. Since the color indicator 50 to be notified is provided separately and separately, the operation of the operation switch 39 can be confirmed by the operation with the operation lamp 47 provided in the vicinity of the operation switch 39, and during the combustion. The advance notice that there will be an automatic fire extinguishing can be easily confirmed on the color display 50 which is displayed largely on the operation unit 2, and the current operating state of the device can be displayed more and clearly. It is easy to use.

  Next, it is conceivable that the fire extinguisher timer means 35 automatically extinguishes fire for about 20 to 40 minutes after the float switch 19 is turned on, and the operation at this time will be described.

  When the float switch 19 is turned on in S10, the buzzer 49 generates a beeping sound three times in succession (S29), turns off the green LED 55 of the color display 50 that has been lit until then (S30), At the same time, the red LED 54 of the color display 50 starts blinking with a slow blinking cycle (2 seconds on / 1 second off) (S31), and the characters “fueling” on the display section 38 blinks (1 second on / 0.5 (Second off) is started (S32), and the number of drive pulses of the electromagnetic pump 20 is started (S33).

  Next, it is determined whether or not the counted number of pulses is greater than or equal to a predetermined value, and here it is less than or equal to the predetermined value (No in S34), so check whether the time counted by the forgetting to extinguish timer means 35 is 15 minutes before the extinguishing time (S44).

  When the count time of the forgetting-off timer means 35 is 15 minutes before the fire extinguishing time (Yes in S44), the buzzer 49 emits a notification sound "P-P-P" (S45), and the color display 50 In the state where the red LED 54 continues to blink slowly without changing the display of “”, the character “OFF” is blinked on the segment of the display unit 38 displaying the room temperature (S46), and the automatic by the forgetting to turn off timer means 35 Inform the user that fire extinguishing is near.

  Then, the process returns to S34 and the number of pulses has not reached the predetermined value, so the process proceeds to S44, and since S44 is No, the process proceeds to S47, and similarly whether the count time of the forgetting to extinguish timer means 35 is 10 minutes before the fire extinguishing time or not. To check. When 10 minutes before the fire extinguishing time, the display of the color indicator 50 is not changed as in the case of 15 minutes before, and the buzzer 49 emits a notification sound “Peep-Peep” while the red LED 54 continues to flash slowly. (S48) The user is informed that automatic fire extinguishing by the forgetting to extinguish timer means 35 is near. The same applies 3 minutes before the fire extinguishing time.

  When the count time of the forget-to-extinguish timer means 35 reaches the fire extinguishing time (S50), the buzzer 49 emits a beeping sound (S51), and the red LED 54 and the operation lamp 47 of the color display 50 are turned on. When the light is turned off (S52, S53), the “OFF” character display on the display unit 38 is changed from blinking to light (S54), and it is informed that automatic fire extinguishing is performed by the forgetting to turn off timer means 35, the combustion fan 23, electromagnetic pump 20. Stop driving the convection fan 5 and perform a fire extinguishing operation (S55).

  When the operation switch 39 is turned off after the fire extinguishing operation is performed (S56), a confirmation sound “pipi” is generated for the off operation (S57), and the “OFF” character display and the fueling character display on the display unit 38 are turned off. (S58, S59). Since the “OFF” character display and the refueling character display are thus continued until the operation switch 39 is turned off, it is confirmed that the operation of the device has been extinguished by the timer means 35 and that the remaining fuel amount has decreased. You can know after the fire is extinguished.

  If the number of pulses of the electromagnetic pump 20 exceeds a predetermined value before the extinguishing time of the forgetting-off timer means 35 comes after the notification sound is emitted by the forgetting-off timer means 35 (S44 to S50), In S34, the result becomes Yes, and the operations in S35 to S43 are performed, and the color display 50 blinks in red with a fast blinking cycle so that it can be clearly seen from a remote position that the operation has stopped due to running out of fuel. To do.

  Further, before the float switch 19 is turned on in S10, the remaining fuel amount is reduced before the extinguishing time of the forgetting-off timer means 35 comes after the notification sound is emitted by the forgetting-off timer means 35 (S11 to S20). When the float switch 19 is turned on (Yes in S10), the process proceeds to S29, where the color indicator 50 blinks with a slow red blinking cycle and the fuel has run out (Yes in S34), or 3 hours have elapsed from the start of operation (in S50). Yes) whichever is earlier, fire extinguishing control is performed.

  Thus, once the color display 50 starts blinking in green, when the remaining fuel amount is low, the color display 50 is changed to red blinking display, and the fire extinguishing notice by the forgetting to extinguish timer means 35 is displayed. Since the fact that the remaining amount of fuel has decreased is displayed on the color display unit 50 with priority, it can be surely known that the remaining amount of fuel has decreased.

  In addition, when the fuel is extinguished by the fuel-extinguishing means 37, if it is not refueled, it will disappear immediately even if the operation is started again. Therefore, the color display 50 is advanced even after the fire is extinguished so that the necessity of refueling is surely notified. When the fire is extinguished by the forgotten-off timer means 35, it is possible to make a quick flashing with the color red and to quickly extinguish the fire due to running out of fuel. The color display 50 is turned off because the operation can be started again and continued without requiring another return operation.

  Next, when the timer switch 45 is turned on and the good morning timer means 36 is set, the difference from the automatic fire extinguishing by the forgetting to extinguish timer means 36 will be described. From S1 to S9 in FIG. First, when the timer switch 45 is turned on (S60), an ON operation confirmation sound “beep” is emitted from the buzzer 49 (S61), and the timer lamp 48 provided in the timer switch 45 is turned on. (S62).

  When the timer time is reached (S63), the operation lamp 47 starts blinking at a slow blinking cycle (on for 0.5 seconds / off for 0.5 seconds) (S64), energization of the vaporizing heater 27 is started, and the vaporizer 26 is started. Preheating is started (S65), and when the vaporization temperature sensor 28 detects the temperature at which ignition is possible and preheating is completed (S66), the green LED 55 of the color display 50 is turned on (S67), and the operation lamp 47 is blinked. The lighting operation is changed (S68), and the combustion fan 23, the electromagnetic pump 20, the igniter 31, and the convection fan 5 are driven to perform an ignition operation (S69).

  Then, the counting of a one-hour timer (referred to as “forgetting to turn off timer” for convenience) is started (S70). Thereafter, except for the count time of the forget-to-turn-off timer being 1 hour, it is the same as after S10 in FIG.

  The good morning timer means 36 is released by turning off the timer switch 45, and is not released by turning off the operation switch 39. When the timer time of the next day comes, the steps from S63 are repeated. It is.

  Further, the various operation switches provided in the operation unit 2 for performing the above-described various operations are arranged such that the display unit 38 is provided in the center, and the operation is a switch related to direct combustion that is normally used on the right side. By integrating the switch 39, the extension switch 40, the up switch 41, and the down switch 42, the right-handed person who occupies the majority can easily operate the switch that is important and frequently operated while looking at the display unit 38, and the operation is easy. The display switch 43, the 5 second ignition switch 44, the timer switch 45, and the child lock switch 46, which are auxiliary function switches, are arranged on the left side. It can be used reliably without any accidental operation.

  The operation switch 39 and the extension switch 40 are arranged up and down with the operation switch 39 up, the up switch 41 and the down switch 42 are arranged up and down with the up switch 41 up, and the display changeover switches 43 and 5 are arranged. The second ignition switch 44 is arranged up and down with the display changeover switch 43 up, and the timer switch 45 and the child lock switch 46 are arranged up and down with the timer switch 45 up, so that the entire operation unit 2 is compact. Although the entire device is compact, it is optimal for the operation part, and the operation unit 2 that does not take up space is realized, and like the operation switch 39 and the extension switch 40, the up switch 41 and the down switch 42, etc. The related switches are arranged up and down, and the main switch operation switch 39 is on the top. Ri, because up switch 41 of the operation to increase is above, very understandable easy and easy to operate, which further worry of malfunction is eliminated, in which easily manipulated can also blind people's eyes.

On the other hand, the color display 50 can easily and surely confirm whether the automatic fire extinguishing is performed with the passage of time from the start of operation or the automatic fire extinguishing is performed due to running out of fuel. Depending on the situation, it is very easy to use, and by providing the color display 50 in the operation unit 2, it is possible to easily know the operating state of the device while operating various switches. An accurate operation can be performed, and since all the displays are in the operation unit, it is extremely easy to see.
In addition, since the color display 50 is directly below the display unit 38, it is possible to see the character display and the like together with the display of the color display 50, and it is convenient to check the situation easily and quickly.

  Further, since the color display 50 has a configuration in which the light emitting unit 51 is directly attached to the operation unit base 34 exposed in the through hole 51 formed in the operation unit 2, no separate parts or lead wires are required, and the configuration is simple. The color display device 50 can be provided at low cost, and cost reduction can be achieved.

  In short, by installing the flat fan case 25 and the fixed tank 18 partially overlapped, the width of the appliance can be greatly reduced, and an extremely compact combustion appliance is provided. Further, the fan case 25 is provided. In addition, since it is not necessary to make the fixed tank 18 small, it can be made compact while maintaining the performance and capacity so far and can be used with confidence.

1 is an external perspective view of a combustion instrument according to an embodiment of the present invention. Sectional drawing of the main body. Sectional drawing of the combustion system. The block diagram of the control system. The front view of the operation part. Exploded view of the color display. Sectional drawing of the color display. The top view of the principal part. The front view of the principal part. The flowchart which shows the operation | movement. The flowchart which shows the operation | movement. The flowchart which shows the operation | movement.

Explanation of symbols

9 Burner section 16 Stand 18 Fixed tank 23 Combustion fan 25 Fan case

Claims (1)

A fan case of a combustion fan that supplies combustion air to the burner part and a fixed tank that supplies fuel oil once stored in the burner part are arranged side by side on a pedestal, and the fan case is flattened. The fixed tank is shaped like a bowl that gradually spreads upward, and the fan case and the fixed tank are in contact with the lower side wall of the fixed tank. , Combustion equipment characterized by being installed so that it partially overlaps when viewed from above .

Images