JP6321491B2 - Combustion heater - Google Patents

Description

  The present invention relates to a combustion heater that performs heating using heat generated by combustion of fuel such as kerosene.

  Conventionally, in this type of equipment, a child lock switch has been provided in the operation section, and heating starts without permission from the child while the heater is stopped. Therefore, the set room temperature and the like were prevented from being changed without permission. In addition, when the remaining fuel is low, there is a lamp that lights a display lamp that informs the necessity of refueling, and there is also a lamp that tries to notify the user of the operation status of the device by the display lamp. (For example, see Patent Document 1)

JP 2006-78118 A

  By the way, in this conventional one, when the fuel runs out during the child lock operation, it is necessary to take out the cartridge tank and supply kerosene, and when the cartridge tank is taken out of the heater for refueling, Although it automatically stops combustion for safety, when you set it to the heater after refueling the cartridge tank and try to restart it, it is in the child lock state, so it is only operated by operating the operation switch. Cannot be restarted unless the child lock is released and the operation must be performed, and the child lock must be reset again, which requires a very cumbersome operation procedure. Met.

  This invention pays attention to this point and solves the above-mentioned drawbacks. In particular, the structure is provided with a cartridge tank for storing kerosene in a casing, a burner part, and a convection fan for releasing heat generated in the burner part into the room The operation unit provided on the housing surface is provided with an operation switch, a room temperature setting switch, and the like, and a child lock switch is provided, and when the child lock switch is operated, only a stop instruction for the operation switch is accepted. A tank detection unit that detects attachment of the cartridge tank and an oil supply detection unit that detects a decrease in the remaining amount of kerosene below a predetermined amount, and the tank detection unit removes the cartridge tank when the child lock is activated. The child lock that automatically releases the child lock for a certain period of time Those having a click control unit.

  According to the present invention, it is possible to perform re-operation without releasing the child lock after performing the refueling operation during the child lock, and further, it is not necessary to reset the child lock after the operation is started. The operation of refueling during child lock has been greatly simplified with no need for operation.

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. The flowchart which shows the operation | movement.

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 tank that supplies liquid fuel such as kerosene, 18 is a fixed tank that temporarily accumulates fuel from the cartridge tank 17, and 19 is a tank detector that detects the mounting of the cartridge tank 17, and a fixed tank 18 is a float switch that is attached to 18, and 20 is a float switch that functions as a fuel supply detection unit and is turned on when the amount of fuel in the fixed tank 18 falls below a predetermined amount. An electromagnetic pump 24 that pumps pressure to the burner unit 9 through the oil nozzle 23, and a combustion fan that blows combustion air through the blower pipe 25.

  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 to automatically extinguish after 1 hour) 37 starts counting the number of driving pulses of the electromagnetic pump 21 when the remaining fuel amount becomes a predetermined amount or less, and automatically extinguishes when the counted number of pulses becomes a predetermined value or more 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. 38 is a child lock control unit. When the tank detection unit 19 continuously detects removal and installation of the cartridge tank 17 when the child lock is activated, the child lock is automatically locked for a certain time (about 30 seconds after the cartridge tank 17 is installed). ) Since it is released, re-operation is as smooth as normal operation, and after 30 seconds it will automatically return to child lock, so there is no need to set a new child lock. .

  A display unit 39 for displaying room temperature, set temperature, current time, timer time, and warning characters is positioned at the center of the operation unit 2, and the right side of the display unit 39 is used for direct combustion that is often used. An operation switch 40 for instructing operation / stop of the device with a related switch, and an extension switch 41 for resetting the count time of the forgetting-off timer means 35 and starting counting again for a predetermined time (3 hours), The operation switch 40 is placed up and down, and the up switch 42 and down switch 43 for changing the set temperature and the timer time are set up, and the up switch 42 for changing the set value up and down is set up. Down switches 43 for changing the setting value and changing the time are arranged up and down.

  Further, on the left side of the display unit 39, a display changeover switch 44 for switching the display of the display unit 39 to a temperature display, a time display, and a timer time display, and the operation instruction of the operation switch 40 by keeping the vaporizer 26 warm. A 5-second ignition switch 45 for igniting in 5 seconds is arranged up and down with the display changeover switch 44 facing upward, a timer switch 46 for starting operation at a set time, and an operation switch for preventing child mischief A child lock switch 47 that accepts only 40 stop instructions is arranged vertically with the timer switch 46 facing up.

  The operation switch 40 is provided with an operation lamp 48, the timer switch 46 is provided with a timer lamp 49, and further provided with a buzzer 50 that emits a sound when each switch is operated or when any warning is given. It is.

  51 is a color display provided in the shape of a horizontally long bar below the display unit 39 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 When the fire extinguishes in advance by flashing green for a certain period of time before automatic fire extinguishment by the good morning timer means 36, and when the remaining fuel becomes less than a predetermined amount and extinguishes fire by the fuel out extinguishing means 37, it is visually advanced By illuminating and flashing red, which is the color, the user is encouraged to refuel with a more easily visible color.

  The color display 51 includes a light emitting unit 52 that emits red and green light and a diffusion lens 53 that diffuses the light of the light emitting unit 52 to the surroundings.

  The light emitting unit 52 is formed by forming a through hole 54 in the operation unit 2 and arranging two red LEDs 55 and three green LEDs 56 alternately in a horizontal row on the operation unit base 34 exposed at the bottom of one end thereof. In addition, a diffuser lens 53, 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 54, is configured so that the operation unit 2 is flat. The entire operation unit 2 is printed, and a transparent film 57 is pasted on a portion facing the diffusing lens 53.

Next, the operation of this embodiment will be described based on the flowchart of FIG.
Start from the child lock operation (s1) during normal heating operation.
In step 2, the flow switch 20 detects that the remaining amount of kerosene is low and lights up a display such as a fueling lamp to inform the user that refueling is necessary. When the state is left as it is because it has not been stopped or kerosene is no longer being purchased, the routine proceeds to step 16 where the combustion operation is stopped due to running out of fuel.

  If No in Step 3, the process proceeds to Step 4 to detect whether the cartridge tank 17 has been removed for refueling. If Yes, it is detected in Step 5 whether refueling has been completed and the cartridge tank 17 has been attached. To do. If No in Step 4, the process proceeds to Step 12, and if a change in other switch operation is detected due to a child's mischief or the like, the process proceeds to Step 16 and the child lock operation is continued.

  When it is detected in step 5 that the refueling is finished and the cartridge tank 17 is attached, the process proceeds to step 6 where it is confirmed whether the remaining amount of kerosene has actually increased by the float switch 20, and if the increase in kerosene can be confirmed. If the child lock is temporarily released by proceeding to step 7 and the operation switch 40 is operated by proceeding to step 8, the child lock is released. Resume.

  If the normal refueling process is not completed between steps 5 and 8, or if the switches of the operation unit 2 are operated during the child's mischief, etc., the process proceeds to steps 13 to 15 and the child in step 16 Continue to operate the lock.

  After the combustion operation is resumed in step 9, the child lock is automatically reset in step 11 when about 30 seconds, which is a predetermined time, has elapsed since the cartridge tank 17 was set in step 10.

  In this way, it becomes possible to re-operate without releasing the child lock after performing the refueling operation during child lock, and further, the operation of resetting the child lock after the start of operation becomes unnecessary, requiring troublesome operations Instead, the refueling operation during child lock has been greatly simplified.

2 Operation section 9 Burner section 17 Cartridge tank 18 Fixed tank 19 Tank detection section 20 Float switch 33 Control device 38 Child lock control section 39 Display section 47 Child lock switch

Claims (2)

  A cartridge tank that stores kerosene in the casing, a burner section, and a convection fan that releases heat generated in the burner section into the room are provided, and an operation switch, a room temperature setting switch, and the like are provided in the operation section provided on the casing surface. In addition, a child lock switch is provided, and in the combustion heater that accepts only the stop instruction of the operation switch when the child lock switch is operated, a tank detection unit that detects the mounting of the cartridge tank, and a remaining amount of kerosene A refueling detection unit that detects a decrease of a predetermined amount or less, and the child detection unit automatically releases the child lock for a certain period of time when the tank detection unit continuously detects removal and installation of the cartridge tank when the child lock is activated. A combustion heater characterized by having a lock control unit. A cartridge tank that stores kerosene in the casing, a burner section, and a convection fan that releases heat generated in the burner section into the room are provided, and an operation switch, a room temperature setting switch, and the like are provided in the operation section provided on the casing surface. In addition, a child lock switch is provided, and in the combustion heater that accepts only the stop instruction of the operation switch when the child lock switch is operated, a tank detection unit that detects the mounting of the cartridge tank, and a remaining amount of kerosene and a fuel supply detecting section for detecting a predetermined amount following reduction, the notification unit for notifying that the level is low kerosene by the refueling detection unit is provided, after the notification by the notification unit, the cartridge tank by the tank detection portion The child lock is automatically released when the removal and installation are detected continuously, and the above-mentioned function is Cartridge tank combustion heater characterized by having a child lock control unit to reset automatically the child lock after a predetermined time of mounting.

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