JP2012251684A - Heater control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a user-friendly heater control device.SOLUTION: The control device includes an operation switch 16 for indicating the operation and stop of a burner 2, a human sensing sensor 23 for detecting the existence and an operation state of a person near a heater body 1, a safety timer means 20 for counting operation time of the burner 2 and indicating to extinguish the burner after a predetermined time, a reset switch 22 for resetting the count time of the safety timer means 20 and for indicating a start of counting of the predetermined time anew, and a notification means 21 for notifying to prompt the operation of the reset switch 22 before a fixed time for counting the predetermined time by the safety timer means 20. A reset prompting means 24 is provided for making the notification means 21 to make notification for prompting the operation of the reset switch means 22 if the human sensing sensor 23 detects the operation of a person between a time before the fixed time when the notification means 21 makes notification and a time before a fixed time further before the fixed time, and thus the control device is very user-friendly.

Description

  The present invention relates to a control device for a heater such as a fan heater.

  Conventionally, in this kind of thing, if the heater is operated continuously for a long time in a closed room, there is a risk of abnormal combustion due to a decrease in the oxygen concentration in the room. It is equipped with a safety timer means to extinguish the fire, and it is said that it is unusable to automatically extinguish the fire in 3 hours. After the ventilation operation such as opening the window before the automatic fire extinguishing, the reset switch By pressing, the operation was continued and the 3-hour count was reset. (See Patent Document 1.)

JP-A-3-63417

  By the way, in this conventional system, if the reset switch is not pressed, the fire extinguishes automatically in 3 hours. Therefore, it is troublesome to operate the reset switch every predetermined time, and if you forget to press the reset switch after performing ventilation operation, Even if ventilation was performed, the operation stopped after 3 hours, which was inconvenient for the user.

  In order to solve the above-mentioned problems, the present invention has a configuration in which, in particular, an operation switch for instructing operation and stop of a burner, a human sensor for detecting the presence of a person in the vicinity of the heater body and the operating state of the person, Safety timer means for counting the operation time of the burner and instructing fire extinguishing of the burner after a predetermined time, a reset switch for resetting the count time of the safety timer means and instructing start of a predetermined time again, and the safety timer And a notifying means for notifying the user to operate the reset switch before a predetermined time when the means counts a predetermined time, and for a predetermined time before the predetermined time when the notifying means notifies, Provided a reset urging means for notifying the urging means to operate the reset switch when the human sensor detects a human motion between before and after Than is.

  As described above, according to the present invention, by detecting that a person has started to move near the notification time, a notification is made to prompt the user to operate the reset switch. It is possible to easily reset the safety timer means by operating, and it is not necessary to move just to operate the reset switch, it is very convenient to use, and it is notified at the beginning of human movement. , I can remember the operation of the reset switch I forgot, and can reset it reliably.

Sectional drawing which shows the heater which attached | subjected one Example of this invention. The block diagram of the same control apparatus. The flowchart of the reset prompting means.

Next, an embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a heater main body installed indoors, a burner 2 that burns inside the heater main body 1, a control device 3 mainly composed of a microcomputer that controls the operation of the heater, and a heater main body 1 It is provided with a convection blower 4 at the rear opening, a hot air outlet 5 at the front of the heater body 1, and an operation unit 6 at the upper front side of the heater body 1, and convection of the combustion exhaust gas at the burner 2 Heating is performed by blowing the air from the hot air outlet 5 into the room by the air blower 4.

  The burner 2 includes a vaporizer 9 having a vaporization heater 8 at the lower part of a burner head 7 having a plurality of flame holes. The burner 2 has a volume from an oil pan 10 in the vaporizer 9 heated by the vaporization heater 8. A liquid fuel is supplied through an oil feed nozzle 12 by driving an electromagnetic pump 11 of the type, and a mixed gas of vaporized gas obtained by vaporizing the liquid fuel and combustion air supplied from a combustion blower 13 through a blower passage 14 is supplied to the burner. Combustion is performed in the flame holes of the head 7, and during combustion, heat is recovered from the flame by an annular heat recovery ring 15 provided at the upper end of the vaporizer 9 so as to face the plurality of flame holes, thereby reducing energization of the vaporization heater 8. It has a wide turndown ratio and performs quiet vaporization combustion.

  The control device 3 includes an operation switch 16 for instructing start / stop of operation, a room temperature setting unit 19 configured by a room temperature increase switch 17 and a room temperature decrease switch 18 to set a desired room temperature, and operation of the operation switch 16. At the start instruction, the burner 2 burns and heating is started, and the safety timer means 20 starts counting a predetermined time of the automatic fire extinguishing time, here, 3 hours, and this safety timer means 20 is a fixed time of the auto fire extinguishing time. In this case, when reaching 15 minutes before, the notification means 21 here generates a beeping notification sound to notify that the automatic fire extinguishing time is approaching.

  Reference numeral 22 denotes a reset switch provided in the operation unit 6, which is reset to reset the count of the safety timer means 20 in the control device 3 and to start counting from 1 again. This automatic fire extinguishing time is reset. Is always accepted from the start of counting by the operation start instruction of the operation switch 16, and the safety timer means 20 is reset at any timing.

  Reference numeral 23 denotes a human sensor provided on the front surface of the heater body 1, which detects that a person has moved and outputs a signal to a reset urging means 24 in the control device 3. The reset urging means 24 When the signal is received and the count of the safety timer means 20 is between a certain time before the notification sound is generated (15 minutes before) and a certain time before this certain time (a further 15 minutes before), the notification sound Is generated, and it is urged to press the reset switch 22 after moving the body, thereby eliminating the waste of moving a person just to press the reset switch 22.

Reference numeral 25 denotes a display unit provided in the operation unit 6 for displaying room temperature, set temperature, current time, and the like.
A vaporization temperature sensor 26 detects the temperature of the vaporizer 9 heated by the vaporization heater 8. The control device 3 turns off the vaporization heater 8 when the temperature detected by the vaporization temperature sensor 21 reaches a predetermined upper limit temperature. When the predetermined lower limit temperature is reached, the vaporizing heater 8 is turned on to keep the temperature of the vaporizer 9 within a temperature range in which the liquid fuel can be vaporized satisfactorily.

  The control device 3 monitors the temperature detected by the vaporization temperature sensor 26 according to the operation command of the operation switch 16 and heats the vaporizer 9 to a temperature at which the liquid fuel can be vaporized by the vaporization heater 8. 9 is raised to a temperature suitable for combustion, the driving of the electromagnetic pump 11 and the combustion blower 13 is started, the mixed gas is ignited by the ignition device 27 to start combustion, and the flame is detected by the combustion sensor 28 by the flame rod. The electromagnetic pump 11 and the combustion are detected in accordance with the deviation between the detected room temperature of the room temperature sensor 29 provided in the vicinity of the convection fan 4 on the back of the heater body 1 and the set room temperature set by the room temperature setting means 19. The air blower 13 is controlled to vary the combustion heating power so that the room temperature set by the room temperature setting means 19 is reached.

Next, the operation of this embodiment will be described.
When the operation switch 16 is pressed now, the vaporization heater 8 is energized to heat the vaporizer 9, and when the vaporization temperature sensor 26 detects that the vaporizer 9 has reached a predetermined vaporizable temperature, the control device 3 causes the electromagnetic pump 11, the combustion blower 13, and the ignition device 27 are driven and ignited and burned by the burner 2, and good vaporization combustion is performed. At the same time, the convection blower 4 is also driven, so that the heater body 1 Warm air is discharged into the room from the warm air outlet 5 on the front side, and good heating is performed.

  Next, the operation of the reset urging means 24 will be described with reference to the flowchart of FIG. 3. When the operation switch 16 is pressed (step S1), the process proceeds to step S2 with YES, and the safety timer means 20 of the control device 3 is set for a predetermined time (3). Time) is started, and it is determined whether the heating operation is continued and the counting is continued for 2 hours and 30 minutes, which is a certain time before the certain time (3 hours-15 minutes-15 minutes). (Step S3), if YES, the process proceeds to Step S4 and it is determined whether or not the human sensor 23 has detected a person's movement for 15 minutes. If YES, the process proceeds to Step S5 and the notification means 21 is activated without waiting for a certain time. In step S6, the process waits for the reset switch 22 to be pressed. In step S7, the process proceeds to step S7, where the safety timer means 20 is reset. If YES in step S2, the process directly returns to step S2, and if the person does not move and the human sensor 23 does not detect in step S4, the process proceeds to NO in step S8, and a predetermined time before the predetermined time (3 hours-15) Minutes) is counted, 2 hours and 45 minutes are counted, and in step S5, the notification means 21 is operated to notify and wait for the operation of the reset switch 22, and in step S6, the reset switch 22 is pressed. If NO, the process proceeds to step S8 and waits for a predetermined time before the predetermined time.

  Thus, by providing the reset urging means 24 using the human sensor 23, the same notification as the predetermined time before the predetermined time is given so that the movement of the person is detected and the reset switch 22 is pushed after something. It is easy to accept the reset operation without any resistance, and if you forget to reset it, you can remember it immediately and you do not have to move just to perform the reset operation. It is.

  Next, when the selection switch 30 that does not operate the reset urging means 24 is pressed, a cancel signal is output to the reset urging means 24 via the control device 3, and the human sensor 23 does not operate and detects the movement of the person. All notifications will be lost, the notification will be given a certain time before the normal predetermined time, and the automatic fire extinguishing by the predetermined time or the fire extinguishing time will be reset by the reset switch 22, and the user himself can freely select the one that suits him / herself It can be used.

DESCRIPTION OF SYMBOLS 1 Heater body 2 Burner 16 Operation switch 20 Safety timer means 21 Notification means 22 Reset switch 23 Human sensor 24 Reset urging means

Claims (1)

  An operation switch for instructing the operation and stop of the burner, a human sensor for detecting the presence of a person in the vicinity of the heater body and the operating state of the person, and counting the operation time of the burner and instructing the fire extinguishing of the burner after a predetermined time A safety timer means that resets the count time of the safety timer means and instructs the start of counting again for a predetermined time, and the reset switch is operated before a predetermined time for the safety timer means to count the predetermined time. And a notification means for performing a notification for prompting, the human sensor detects a human motion between a certain time before the notification means performs the notification and a certain time before the certain time. Sometimes, a control device for a heater is provided with reset urging means for notifying the notifying means to urge the user to operate a reset switch.

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