JP2008039347A - Heating device control system - Google Patents

Abstract

A control system for a heat generating device with a blowing function having a safety mechanism using a time stamp method is provided.
A built-in power source for driving a counter circuit built in a heat generating device with an air blowing function is in an output stop state when power is supplied from an external power source, and power is not supplied from the external power source. Sometimes used as a drive power source for a counter circuit, the counter circuit counts the elapsed time continuously from a time stamped reference date using externally supplied power or built-in power source as a drive voltage. At the same time, when the set time elapses, a warning is given to the display unit or the operation of the heat generating device is restricted.
[Selection] Figure 4

Description

  In the present invention, heat from a hot air discharge heater such as a fan heater using gas, kerosene, or the like as a fuel, or a carbon, ceramic, infrared heat lamp or the like as a heating medium is taken into an air flow and externally supplied. With regard to heat generating devices having a blowing function such as copiers and printers that have a blowing function that discharges to, especially from long-term use, from the viewpoint of safety, a warning function using a time stamp method or a similar method, or The present invention relates to a control system for a heat generating device capable of constructing an operation control function.

  Conventionally, as a device that releases warm air and efficiently heats the room indoors, hot air heating that heats the air supplied to the combustion unit or the like via a blowing means such as a fan and discharges the air as indoor air from the device blowout hole The vessel is known. FIG. 6 is a schematic conceptual diagram of a hot air heater using kerosene as fuel, which has been well known among those skilled in the art. Inside the hot air heater housing 1 is a fuel tank 2 for storing kerosene, a vaporizer 3 for gasifying the kerosene by mixing it with air, a burner section 4 for burning the gasified kerosene, and a fan for supplying air 5 and a control circuit section 6 for electrically controlling the heating function of the hot air heater.

  Kerosene in the fuel tank 2 is sent to the carburetor 3 via the fuel supply path 7, vaporized in the carburetor 3, and mixed with air to become a flammable gaseous substance, resulting in electric spark (discharge) or heater heat. It burns in the burner part 4 by using etc. as a trigger. In addition, when the blower fan 5 rotates, the air flow taken into the housing 1 from the air intake hole 8 of the housing 1 is blown and passes through the burner unit 4, and at that time, the burner unit 4 is deprived of the combustion heat of 4 and becomes hot air, is discharged from the blowout hole 9 of the housing 1, and rapidly raises the room temperature.

  When the power plug 10 of the hot air heater is inserted into an outlet, electric power is supplied to the control circuit unit 6 so that the hot air heater is in a standby state, the room temperature is measured by a thermistor, etc. If the state of the device is detected by the heating start switch and the room temperature and the state of the device are suitable for the heating operation, the fan drive circuit 11 in the control circuit unit 6 rotates the blower fan 5. Moreover, the combustion control circuit 12 enables the electric power for electric spark (discharge) or heater heating to the vaporizer 3, and the above-mentioned heating operation is performed. When the room temperature is higher than the set temperature and heating is not required, the state of the equipment is suitable for the heating operation from the viewpoint of suppressing energy waste and from the malfunction of the vaporizer 3 or the warm air heater being inclined. When it is detected that there is no power supply, the control circuit unit 6 stops the power supply from the viewpoint of safety.

  In the conventional warm air heater, incomplete combustion in the burner unit 4 due to clogging of the air intake hole 8 or excessive combustion in the burner unit 4 due to malfunction of the vaporizer 3 or the like is one. There is a danger of causing serious accidents such as carbon oxide poisoning and fire. Therefore, particularly in a warm air heater used for a general household, it is required to take strict accident prevention measures to ensure safety.

Conventionally, from the viewpoint of ensuring safety, as shown in JP-A-5-272754, JP-A-8-303771, or JP-A-11-248154, a hot-air heater using gas, kerosene, or the like as fuel is used. Introduce the concept of life to combustion equipment such as, and forcibly set the combustion equipment to an unusable state when the accumulated time reaches the preset use limit value by accumulating the operation time or number of use of the combustion equipment A safety measure based on a kind of integrated operation value method is proposed, such as issuing a warning that a check is required to a manufacturer or specialized organization. If this method is introduced, it is assumed that the combustion equipment has reached the end of its life when the total operation time or the number of times of use reaches a certain value (usage limit value), and the use is forcibly prohibited. It is set so that it can only be used after inspection and parts replacement. Therefore, it is intended to ensure safety by configuring each part / structure of the combustion equipment so that it can withstand sufficient use for a period longer than the period set as the use limit value for normal repeated use. This is the conventional safety measure disclosed in the above publication.
JP-A-5-272754 JP-A-8-303771 Japanese Patent Laid-Open No. 11-248154

  The safety measure applying the above-mentioned operation integrated value method is a method in which the operation time or the number of times of use of the combustion equipment is sequentially integrated based on the time stamp method, and basically a counter using electric power from a general commercial power source. Since the circuit (timer) can be operated and integrated, no additional storage means such as a dry cell is required. However, since it is the operating time or the number of times of use of the combustion equipment that is accumulated, for example, there is a state in which the hot air heater is left in a storage room or the like without being used continuously for about 2 to 3 years. In the case of frequent occurrence, the accumulated value of this non-use period is not counted and remains a constant value, and even if a considerable amount of time has passed since the date of manufacture, the warm air heater will accumulate the accumulated value from the time stamped Without reaching the preset use limit value, the usable state is maintained as it is. In addition, depending on the situation such as the usage time and frequency per day, there is a considerable gap in the period until the integrated value reaches the preset use limit value for each device.

  The warm air heater has both a combustion heating function and an air blowing function, and is repeatedly used with a thermal cycle in which the temperature changes between operation and non-operation. Therefore, material deterioration such as corrosion due to carbonization or thermal fatigue near the heat generating part, occurrence of defective parts, structural deformation / damage / strength reduction due to thermal expansion / contraction, etc. are likely to occur. Even so, it progresses gradually and is gradually accelerated once it starts. In particular, non-metallic members such as rubber and plastic are subject to deterioration over time due to aging. In addition, when the non-use period is long, dust and dirt accumulate on the air flow path of the hot air heater, and it is easy to cause incomplete combustion due to clogging and carbon monoxide poisoning.

  Therefore, in order to ensure safer safety measures for hot air heaters, it is not a method of sequentially accumulating the operation time or the number of times of use from the time stamped time, but the user such as the date of manufacture or the date of purchase. The time and date of the previous stage is time stamped, and the elapsed time is continuously counted on the basis of this, so that the warm air flows when a preset period of time elapses from this reference date (reference time). In practice, it is desirable to use a continuous time counting system in which the heater is disabled (disabled) or a warning that a predetermined inspection is required is issued. However, the warm air heater is normally used in winter and is not used except in winter, and the power plug is removed from the commercial power outlet of a general household. Therefore, if you try to apply a continuous time counting method that counts without suspending the passage of time after a time stamp based on the date of manufacture (purchase), etc., even in this non-use period from the reference date As a power source capable of operating a counter circuit for integrating the elapsed time, it is necessary to configure a hot air heater that can be equipped with an internal power source such as a dry cell.

  As described above, since the hot air heater is used with a thermal cycle in which the temperature changes drastically, when the internal power source is mounted on the hot air heater, the internal power source is also affected by the thermal cycle. In general, a battery used as an internal power supply of a device has a characteristic that the stored charge capacity is reduced under cold and the battery life is shortened, and the leakage of the stored charge is severe under high temperature, and the battery life is similarly shortened. Therefore, since the battery built in the warm air heater is repeatedly heated by the radiant heat from the burner section 4 and the like, the life is longer than the specified value due to the influence of the thermal cycle with a large drop caused by the heating operation on / off. There is a risk that it will be reduced considerably and will not function as a capacitor over the required period. When battery life comes, the method of time stamping the date of manufacture (purchase) and continuously integrating the elapsed time from this point can no longer function, and the safety of the hot air heater Will disappear.

  In view of the above-mentioned problems, the present invention is a technique that addresses the shortening of the battery life caused by a thermal cycle imposed on a battery built in a heat-generating device having a blowing function such as a warm air heater. Yes, by making the battery function effective over a long period of time, when a predetermined period of time has elapsed from the reference date stamped such as the date of manufacture or purchase, the heating device is disabled or predetermined It is an object of the present invention to provide a control system for a heat generating device that can surely implement safety measures based on a continuous time counting method such as issuing a warning that an inspection is required.

  The present invention provides a control system for controlling the on / off operation of the heat generating device in a heat generating device control system having a blowing function in which heat from a heat generating source is transferred to an air flow obtained by rotation of a fan and released to the outside. A circuit unit, a counter circuit that counts the passage of time, and an internal power source that supplies power to the counter circuit, and the control circuit unit receives power from an external power source from the internal power source. A power supply switching circuit for stopping power supply to the counter circuit and supplying power from the internal power supply to the counter circuit when the control circuit unit is not receiving power supply from an external power supply is added to the internal power supply. The counter circuit starts counting the elapsed time in the initial setting, and then continues until the predetermined time period elapses. The power or external power and continues counting as a power source, a control system of the heating apparatus, characterized by notifying the arrival of the predetermined period.

  A rechargeable battery is used as the internal power supply, and the power supply switching circuit stops power supply from the internal power supply to the counter circuit when the control circuit unit receives power supply from an external power supply. The power of the external power source supplied to the control circuit unit is applied to the internal power source, and the power is supplied from the internal power source to the counter circuit when the control circuit unit is not receiving power from the external power source. When the function of the switching circuit part is changed, the internal power supply is in a charged state when the control circuit unit is supplied with power from the external power source, and the control circuit unit is supplied with power from the external power source. The internal power supply may have a charging function so that the internal power supply becomes a power supply source to the counter circuit when there is no Kill.

  The initial setting is preferably done by the manufacturer or dealer setting the counter circuit to the operating state at the stage before the user's hand such as the date of manufacture or date of purchase. May be automatically set when the heat generating device is first used. In addition, the arrival of the predetermined period may be performed after a certain period of time after a warning is issued on the display unit by issuing a warning to that effect on the display unit or notifying the heat generating device itself by disabling it, or a combination thereof. Various forms, such as a configuration that is disabled, are provided for implementation.

  According to the present invention, the power consumption of the internal power supply is suppressed by the above configuration, and the charge consumed by using the secondary battery is recovered by charging, so that the life of the internal power supply comes early. Therefore, the counter circuit can function as a power source that can be driven stably for a long period of time. Therefore, the date of manufacture or date of purchase is stamped in advance based on the date in the previous stage of the user's hand or when the user first sets the heating device in use. It is possible to implement a safety measure that operates so as to issue a warning to disable the heat generating device or to require a predetermined inspection when a set period of time has elapsed.

<Example 1>
FIG. 1 is a schematic conceptual view of a hot air heater using kerosene as fuel for explaining one embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 6 represent substantially the same components as those in FIG. As in the past, a predetermined amount of kerosene is sequentially sent to the vaporizer 3 as a combustion medium from a fuel tank 2 that is detachably inserted into the case 1 of the hot air heater body, and mixed with air. The burned part 4 burns as a combustible fuel gas. The carburetor 3 is preheated so that kerosene can be efficiently combusted and easily ignited. In addition, as an ignition means, it is made to discharge by giving the voltage of a commercial power source or the electromotive voltage of a piezoelectric effect element between a pair of electrodes provided in the lower part of the burner part 4 or the upper part of the vaporizer 3, and the electric spark generated at that time is discharged. Various known methods can be applied, such as using heat generated when the heater is energized and heated. Further, the fan 5 mounted so as to be attached to or interlocked with the rotating shaft of the motor is rotationally driven by the motor, so that the air flow taken in from the air intake hole 8 takes the combustion heat of the burner section 4. Warm air is discharged from the blowout hole 9 into the indoor space over a wide area.

  When the power plug 10 is inserted into an ordinary household commercial power outlet and power is supplied to the control circuit unit 6, the flow rate of kerosene in the fuel supply path 7, the presence or absence of an abnormality in the carburetor 3 and the burner unit 4, air intake The presence or absence of clogging of the air passage of the hole 8 and other parts, the installation angle of the hot air heater main body and the presence or absence of vibration are detected by a sensor, and the detected data, the remaining amount of kerosene in the fuel tank 2 and the thermistor are measured. The room temperature data and others are comprehensively determined by the combustion control circuit 12. If there is no problem, the fan drive circuit 11 drives the motor to rotate the fan 5, and the combustion control circuit 12 preheats the carburetor 3 and ignites the fuel gas. The electric power to be supplied is supplied to ignition means such as a discharge electrode provided near the lower part of the burner unit 4 or the upper part of the vaporizer 3. In this way, the fuel gas is burned in the burner unit 4 and hot air is released into the room, so that the heating operation of the hot air heater is started.

  In addition to the above, in the present embodiment, a counter circuit 13 is added to the control circuit unit 6 and a battery 14 serving as a drive power source for the counter circuit 13 and a display unit 15 responding to the integrated value of the counter circuit 13 are connected. . The counter circuit 13 is composed of a flip-flop or the like, and is set to an operating state before the hot air heater reaches the user (customer), such as when shipped from the manufacturer or purchased by the customer at the store. The clock signals are sequentially counted with the time points set as the time stamped reference time, and the elapsed time is continuously integrated for a predetermined period (for example, about 5 to 20 years). The predetermined period depends on the use environment, but it is appropriate to set the upper limit to about 10 years when it is assumed to be used in a general household. The operating power source of the counter circuit 13 is the battery 14 that is initially built in. However, when the power plug 10 is inserted into a commercial power outlet and power is supplied to the control circuit unit 6, the commercial power source is used to prevent the battery 14 from being consumed. Switch to power.

  When the integrated value of the counter circuit 13 reaches the predetermined period set in advance, a warning is displayed on the display unit 15 connected to the counter circuit 13. As warning forms, contents that urge manufacturers or specialists to check the hot air heater, or contents that inform that the hot air heater is inoperable after a certain period of time are stored in advance. And is called from the memory when the integrated value reaches the predetermined period. In this embodiment, safety measures based on the time stamp method are executed in this way.

  FIG. 2 is a schematic configuration diagram showing a main part of an embodiment of the battery 14 mounting structure. In this embodiment, a button type battery is illustrated as the battery 14. If it is a button type battery with a long life specification, assuming that it is continuously used at room temperature only for the clock function that counts the clock signal (current used is about 2 to 5 μA), it usually has a predetermined period of about 7 to 15 years. Although the electromotive force is maintained, the battery 14 built in the warm air heater receives radiant heat due to combustion in the burner unit 4 from one side and receives air cooling action by blowing from the other side. As a result, the battery 14 is placed in an environment in which an extreme temperature difference is repeatedly generated from one side to the other side, which causes a situation in which the life characteristics of the battery deteriorate and an electromotive force cannot be obtained before a predetermined period. It will be.

  In the present embodiment, in order to solve this problem, the output of the battery 14 is stopped while the power is supplied from the commercial power source to the control circuit unit 6, and the counter circuit 13 is driven by the commercial power source. That is, the electromotive force of the battery 14 is extracted from the electrode through the lead wire and sent to the power supply control terminal unit 19. In addition, a signal P indicating whether the power plug 10 of the hot air heater is inserted into a commercial power outlet and electric power is supplied from the commercial power supply is also input to the power control terminal unit 19. When the power plug 10 is not plugged into a commercial power outlet or the commercial power supply is in a power failure state, and no power is supplied from the commercial power supply to the control circuit unit 6, the power control terminal unit 19 is The state is detected, and the electric power V from the battery 14 is supplied from the output terminal of the power supply control terminal unit 19 to the counter circuit 13 added to the control circuit unit 6. That is, the counter circuit 13 is driven by the battery 14. On the other hand, when power is supplied from the commercial power source to the control circuit unit 6, the power control terminal unit 19 detects the state by the signal P and stops the output of the power V from the battery 14. At this time, the operation power supply of the counter circuit 13 is switched to the commercial power supply in the control circuit unit 6. That is, the power control terminal unit 19 functions as a control circuit that determines whether or not the power of the battery 14 is output depending on whether or not the commercial power is supplied, and the counter circuit 13 uses either the battery 14 or the commercial power as a driving power. Integration is continuously performed without interruption of the passage of time from the reference date (initial setting date) set to the initial operating state (time stamp).

  In the present embodiment, the output of the battery 14 is stopped by the action of the power control terminal unit 19 while power is supplied from the commercial power source to the control circuit unit 6. In other words, the battery 14 does not need to release the charge for operating the counter circuit 13 during the period in which the hot air heater is performing the heating operation and the period in which the warming operation is on standby. Power consumption is reduced. Therefore, the battery 14 can function as an operating power source for the counter circuit 13 for a long period of time without incurring an early life.

  A configuration in which at least the side facing the burner portion 4 of the battery 14 is covered with a heat insulating material 16 or the battery 14 is embedded in the heat insulating material for the purpose of suppressing an adverse effect of the radiant heat from the burner portion 4 on the battery 14. It is also effective.

  As the heat insulating material 16, various inorganic or organic materials exhibiting a heat insulating effect such as cellulose, glass wool, polyurethane, polyethylene, ceramic, and the like can be appropriately selected and used. In addition, the battery 14 embedded in the heat insulating material 16 is attached to a partition plate 17 installed on the front surface (fan supply side) of the fan 5 with a fixing member 18. The partition plate 17 is a protective member such as a net, a lattice, a frame, or a rod that is installed on the front surface of the fan 5 so as not to hinder the air blowing function in order to prevent the burner unit 4 and the like from being damaged by the falling of the fan 5. Yes, it is made of a metal such as aluminum or iron alloy or other resin having thermal conductivity, and a thermosetting resin or a metal fixing member 18 is screwed or bonded to the heat insulating material. The battery 14 embedded in the battery 16 is built in the warm air heater so that it is not easily taken out by the user. Since the partition plate 17 receives air-cooling action when blown from the fan 5 (air flow), the heat energy absorbed and accumulated by the heat insulating material 16 is partly directly, and the remainder is the partition plate via the fixing member 18. 17, the partition plate 17 becomes an air cooling member and is efficiently dissipated during blowing. As a result, the heat generated on one side of the battery 14 and the air cooling action generated on the other side proceed in a direction that cancels through the heat insulating material 16 around the battery 14, and the temperature difference between the high and low generated in the battery 14 itself. Is greatly relaxed. That is, even if the heating operation is started, the battery 14 is only subjected to a very gradual temperature change without being placed in a large temperature difference environment, and the deterioration of the battery life is suppressed.

  FIG. 3 is a schematic configuration diagram of a main part for explaining another embodiment of the present invention, and illustrates a mounting structure in which a rechargeable secondary battery is embedded in the heat insulating material 16 as the battery 14. Known secondary batteries that can be repeatedly charged include lithium ion type, nickel hydrogen type, nickel cadmium type, polypyrrole organic semiconductor type, and the like. Further, when the secondary battery is charged to the maximum capacity and then discharged without being charged at a working current of about 2 to 5 μA, the electromotive force can be maintained for about 2 to 4 years.

  When the signal P indicating that power is not supplied from the commercial power supply to the control circuit unit 6 is input to the power supply control terminal unit 19 in the present embodiment, the counter is connected from the output terminal to the counter as in the embodiment of FIG. The counter circuit 13 is driven by supplying the power V of the battery 14 to the circuit 13, but when the signal P indicating that power is supplied from the commercial power source is input to the control circuit unit 6, the power of the battery 14 is When the output of V is stopped, the output terminal becomes the input terminal and the power of the commercial power supply is supplied to the battery 14 side, and the voltage from the commercial power supply is applied to the battery 14 as the charging voltage. Since the battery 14 is composed of a secondary battery, the battery 14 is charged while power is supplied from the commercial power source to the control circuit unit 6, and the discharge charges consumed for driving the counter circuit 13 until then are collected. Therefore, it can be used for a long time as a built-in battery of a hot air heater.

  FIG. 4 is a block diagram for explaining the operation of the power control terminal unit 19. The power control terminal unit 19 exemplified in this embodiment includes a first switch circuit 22 and a second switch circuit 23. The electromotive force from the battery 14 is input to the first switch circuit 22 in the power supply control terminal unit 19. When the first switch circuit 22 is in the closed state, the output voltage from the power supply control terminal unit 19 is applied to the counter circuit 13 as the drive voltage V. Is output. The battery 14 is also connected to a second switch circuit 23 in the power control terminal 19, and the second switch circuit 23 is supplied with electric power Vc from a commercial power source. Therefore, when the second switch circuit 23 is in the closed state, the battery 14 is supplied with the electric power Vc from the commercial power supply as a charging voltage.

The first switch circuit 22 and the second switch circuit 23 are opened and closed by a signal P indicating whether power is supplied from a commercial power source. That is, when power is not supplied from the commercial power source, the signal P becomes a low (low) level, the first switch circuit 22 is closed, and the second switch circuit 23 is opened. As a result, the electromotive force from the battery 14 is output to the counter circuit 13 as the drive voltage V from the power control terminal 19 via the first switch circuit 22. When power is supplied from the commercial power source, the signal P becomes high (high) level, the first switch circuit 22 is opened, and the second switch circuit 23 is closed. As a result, the output of the drive voltage V from the battery 14 is stopped, and the power Vc from the commercial power supply is applied to the battery 14 to charge the battery 14. At this time, the counter circuit 13 is driven by the supply voltage Vs from the commercial power source. Accordingly, the counter circuit 13 always continues the count operation without being interrupted by the drive voltage V from the battery 14 or the supply voltage Vs from the commercial power source, and warns the display unit 15 when the integrated value reaches a predetermined period. Is emitted.

  FIG. 5 is a voltage waveform diagram showing the interrelationship between the supply voltage Vs from the commercial power source, the power Vc from the commercial power source, the signal P indicating the presence / absence of power supply from the commercial power source, and the drive voltage V from the battery 14. . When power is supplied from a commercial power source, P is at a high level together with Vs and Vc, and the output of V is at a low level (stopped state). At this time, the battery 14 is charged. When P becomes low level, the output of V becomes high level (output state) in synchronization therewith.

  In the battery 14 mounting structure of this embodiment, the partition plate 17 used in FIG. 2 is not provided as a member for attaching the heat insulating material 16 in which the battery 14 is embedded, and a pedestal 20 framed near the bottom of the housing 1. An L-shaped holder 21 made of a metal such as aluminum, stainless steel, or other resin having thermal conductivity is used. That is, the heat insulating material 16 in which the battery 14 is embedded is supported by the L-shaped holder 21 and is fixed to the L-shaped metal fitting 21 by the fixing member 18 so that the battery 14 is not easily taken out by the user.

  The L-shaped holder 21 that supports the heat insulating material 16 in which the battery 14 is embedded is disposed on the air blowing path between the burner unit 4 and the fan 5, in the vicinity of the air blowing path, or in the vicinity of the back surface position of the fan 5. When it arrange | positions on a ventilation path | route or the vicinity of a ventilation path, the ventilation produced | generated by the fan 5 has an air-cooling effect with respect to the L-shaped holder 21, and the thermal energy accumulate | stored in the heat insulating material 16 is L-shaped from the heat insulating material 16. The air is efficiently dissipated through the holder 21 during blowing. When the fan 5 is arranged near the rear surface position, the air on the rear surface of the fan 5 moves so as to be sucked into the fan 5 by the rotation of the fan 5, and at this time, the heat of the L-shaped holder 21 is taken away. Therefore, the air-cooling effect is produced for the L-shaped holder 21 as described above. The electromotive force of the battery 14 embedded in the heat insulating material 16 is taken out from the electrode located inside the heat insulating material 16 through the lead wire and sent to the power control terminal portion 19. Of course, it is possible to adopt a configuration in which the partition plate 17 is used as the mounting structure of the battery 14 as in FIG.

  As described in detail above, the control system for the heat generating device with a blowing function according to the present invention is equipped with various batteries shown in the above embodiment in the heat generating device main body in order to keep the counter circuit for integrating the passage of time without interruption. Power supply from an external power supply is obtained so that the life characteristics of the internal power supply do not arrive early due to the influence of a large thermal difference caused by heat generation during operation. If this happens, stop the output of the internal power supply to reduce power consumption, and warm air heating when a certain period of time has been detected by continuously accumulating without lapse of time from the initial setting (time stamp) It is possible to reliably achieve the safety measure function of a system that issues a warning that the instrument is inoperable or requires inspection.

  In the above embodiment, the button-type battery is attached to the partition plate 17 and the secondary battery is attached to the L-shaped holder 21. However, in the present invention, the secondary battery is attached to the partition plate 17 and the button-type battery is attached to the L-type holder 21. It is good also as a structure attached to the type | mold holder 21 and it can replace with a button type battery and can also utilize a cylindrical dry battery. Further, the heat insulating member may be attached to the outer wall or the inner wall of the battery body, and a dedicated internal power source in which the battery and the heat insulating member are integrated into a unit may be used.

It is a schematic model conceptual diagram of the warm air heater used for description of 1 Example of this invention. It is a principal part schematic block diagram which shows one Example of the mounting structure of the battery incorporated in the warm air heater shown in FIG. It is a principal part schematic block diagram which shows the other Example of the mounting structure of the battery incorporated in the warm air heater shown in FIG. It is a block block diagram with which it uses for operation | movement description of the power supply control terminal part connected to the battery shown in FIG. FIG. 6 is a voltage waveform diagram showing the interrelationship between a supply voltage Vs from a commercial power supply, a power Vc from the commercial power supply, a signal P indicating whether power is supplied from the commercial power supply, and a drive voltage V from the battery 14. It is a schematic model conceptual diagram of the warm air heater using the conventional kerosene for fuel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 3 Vaporizer 4 Burner part 5 Fan 6 Control circuit part 8 Air intake hole 9 Injection hole 10 Power plug 11 Fan drive circuit 12 Combustion control circuit 13 Counter circuit 14 Battery 15 Display part 19 Power supply control terminal part 22 1st 1 switch circuit 23 2nd switch circuit

Claims (6)

In a control system for a heat generating device having a blowing function in which heat from a heat source is transmitted to an air flow obtained by rotation of a fan and released to the outside,
A control circuit unit that regulates the on / off operation of the heat generating device, a counter circuit that counts the passage of time, and an internal power source that supplies power to the counter circuit,
When the control circuit unit receives power from an external power supply, the power supply from the internal power supply to the counter circuit is stopped, and when the control circuit unit does not receive power supply from an external power supply, A power supply switching circuit for supplying power to the counter circuit from an internal power supply is added to the internal power supply,
The counter circuit starts counting the elapsed time at the initial setting, and then continues the counting operation using the internal power source or the external power source as a power source until a predetermined period set in advance, and reaches the predetermined period. A control system for a heat generating device, characterized by notifying. In a control system for a heat generating device having a blowing function in which heat from a heat source is transmitted to an air flow obtained by rotation of a fan and released to the outside,
A control circuit unit that regulates the on / off operation of the heat generating device, a counter circuit that counts the passage of time, and an internal power source that supplies power to the counter circuit,
When the control circuit unit is receiving power supply from an external power source, the power supply from the internal power source to the counter circuit is stopped and the power of the external power source supplied to the control circuit unit is applied to the internal power source. In addition, a power supply switching circuit for supplying power from the internal power supply to the counter circuit when the control circuit unit is not receiving power supply from an external power supply is added,
The internal power supply is in a charged state when the control circuit unit receives power supply from an external power supply, and supplies power to the counter circuit when the control circuit unit does not receive power supply from an external power supply. The source
The counter circuit starts counting the elapsed time at the initial setting, and then continues the counting operation using the internal power source or the external power source as a power source until a predetermined period set in advance, and reaches the predetermined period. A control system for a heat generating device, characterized by notifying.   The control system for a heat generating device according to claim 1, wherein the counter circuit notifies the arrival of the predetermined period by a display unit. The heat generating device control system according to claim 1, wherein the counter circuit notifies the arrival of the predetermined period by disabling the heat generating device.   3. The control system for a heat generating device according to claim 1, wherein the counter circuit notifies the arrival of the predetermined period by a display unit, and the heat generating device becomes inoperable after a certain period of time has passed. 3. The control system for a heat generating device according to claim 1, wherein an air flow obtained by rotation of the fan is discharged to the outside as warm air for heating.

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