JPH0251087B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an odor absorption control device for a wick type oil combustor.

Conventional technology In general, wick-type oil combustors have a problem in that when the wick is lowered to extinguish the fire, the oil vapor that continues to evaporate from the wick enters the high-temperature combustion cylinder, where it is thermally decomposed and generates a strong odor. Ta.

Recently, in order to reduce the odor caused by extinguishing a lamp, a method has been proposed in which an odor absorbing device such as a fan is activated at the same time the lamp is extinguished, and the petroleum vapor that continues to evaporate from the wick is sucked into the tank and then released to the outside. Figures 3 and 4 show a wick-type oil combustor equipped with such a device. When the wick 1 is lowered to extinguish the fire, the fan 3 of the odor absorbing device 2 starts rotating and removes the petroleum vapor that continues to vaporize from the top of the wick 1. It is sucked into the tank 4 as shown by the arrow and discharged to the outside through the discharge port 5.

According to this wick-type oil combustor equipped with an odor absorbing device, the oil vapor that continues to be generated after extinguishing is heated to the combustion tube 6.
Since the petroleum vapor is released into the atmosphere through the tank 4 without flowing into the tank 4, the irritating odor caused by thermal decomposition of petroleum vapor is eliminated, and the odor can be significantly reduced.

A control device for such an odor absorbing device for a wick-type oil combustor has conventionally been constructed as shown in FIG. The configuration will be described below along with an explanation of its operation. First, rotate the wick top and bottom knobs 7 to raise the wick 1 and ignite it with an ignition device (not shown).
The common contact 8a of the switch 8, which is interlocked with the switch 8, is switched to the normally open contact 8b side. As a result, switch 8,
The capacitor 10 is charged via the resistor 9, and the transistors 11 and 12
These transistors 11 and 12
Turn on.

Next, from this state, when the lamp wick upper and lower knobs 7 are rotated to lower the lamp wick 1 and extinguish the fire, the common contact 8a of the switch 8 is switched to the normally closed contact 8c side. As a result, electricity flows to the base of transistor 15 via transistor 12, switch 8, and resistors 13 and 14, and this transistor 15
Turn on. As a result, the motor 16 of the fan 3 starts rotating, and as described above, the petroleum vapor that continues to vaporize from the top of the wick is sucked into the tank. On the other hand, at the same time, charging of the capacitor 19 is started via the resistors 17 and 18, and when the charging voltage reaches a certain value, the comparators 20 and 30 are activated to turn off the transistor 11. As a result, the transistor 12 is also turned off, and furthermore, the transistor 15, which was supplied with power via the transistor 12 and the switch 8, is also turned off, and the motor 16 of the fan 3 stops rotating. That is, the motor 16 rotates and performs the odor absorbing operation until the capacitor 19 is charged to a constant voltage, and then automatically stops.

Problems to be Solved by the Invention However, in the conventional control circuit described above, when the combustor is burning, a weak current flows from the battery 21 serving as the power source to the transistors 11 and 12 as described above. For example, when actually measuring this conventional circuit, the voltage of the battery 21 was 3.2V, and the current was approximately 0.83mA. As described above, this control circuit has a problem in that a weak current continues to flow while the combustor is burning, which wastes the battery 21. For example, when lighting a lamp wick, assuming that the battery voltage is 3V, the current flowing through the ignition heater is 1A, and the time required for ignition is 5 seconds, the total power required for ignition is 3 x 1 x 5 = 15 W・sec. With this calculation, it is 0.83m as in the conventional example.
If it is used for 10 hours while flowing A, battery voltage 3V Current flowing 0.83mA = 0.83 x 10 ^-3 A Consumption time 10 hours = 10 x 60 x 60 seconds = 36 x 10 ³ Power consumption = 3 x 0.83 ×10 ⁻³ ×36×10 ⁻³ = 89.64 W·sec That is, it is about 6 times the ignition power mentioned above, and therefore, the same power is consumed as if the ignition operation was performed seven times in addition to normal ignition. As a result, battery life is significantly shortened.

The present invention was made in view of these points.
The purpose is to eliminate wasteful consumption of power sources such as batteries and improve the lifespan of power sources.

Means for Solving the Problems In order to achieve the above object, the present invention is provided with the configuration means shown in FIG. 1. In other words, a motor for an odor absorption fan, a capacitor that is charged when extinguishing a fire, stops energizing the motor that is energized during charging after charging is completed, and discharges during combustion, and a battery that serves as a power source for the motor and capacitor. and a changeover switch that connects the capacitor to the power source and energizes the motor when extinguishing a fire, and discharges the capacitor when burning.

Function Since the present invention is configured as described above, during combustion, the changeover switch switches to discharge the electric charge stored in the capacitor, and no power is consumed. When charging is completed, the charging action automatically stops and no power is consumed from then on, extending the lifespan of the power supply.

Embodiment One embodiment will be explained below using FIG. 2. In FIG. 2, 21 is a power source such as a battery, 22
is a motor for an odor absorption fan connected to this power source 21.

The collector and emitter of a transistor 26 are connected between the power supply 21 and the motor 22, and a resistor 27 is connected to the base of the transistor 26.
is connected to a common contact 24a and a normally closed contact 24c of a changeover switch 24 via a capacitor 23. Then, another resistor 28 is connected to the emitter side of the transistor 26, and the other end is connected to the changeover switch 2.
It is connected to the normally open contact 24b of No. 4. 29 is a resistor connected between the base and emitter of the transistor 26.

In the above configuration, when this control circuit is used in a wick-type oil combustor as explained in FIGS. 3 and 4, and combustion is started by raising the wick 1 with the wick upper and lower knobs 7, the control circuit is linked to the knob 7. The common contact 24a of the changeover switch 24 switches to the normally open contact 24b side, and the electric charge charged in the capacitor 23 during combustion stoppage (extinguishing) is discharged, and the power source 21
The circuit becomes open, the motor 22 stops, and no current flows. In other words, the flow of electricity during combustion of the appliance, or in other words, the unnecessary use of electricity, is eliminated.

When the lamp wick 1 is lowered to extinguish the fire in such a state, the common contact 24a of the changeover switch 24 returns to the normally closed contact 24c side, and charging of the capacitor 23, which had been discharged during combustion, is started, and the capacitor 23 is discharged. By charging the transistor 26
Since the motor 22 is turned on by the voltage of the power supply 21, the capacitor 23 is connected to the transistor 26.
All that is required is a capacitance that can charge enough charge to turn on the capacitor, which has the advantage of reducing costs by reducing the size of the capacitor. And capacitor 2
Petroleum vapor that continues to vaporize from the upper part of the lamp wick is drawn into the tank 4 until the charging of the lamp 3 is completed (about 1 minute) and then released to the outside.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, no wasteful electricity flows during combustion of the appliance, so that the life of the power source such as a battery can be lengthened accordingly, which is economical. Moreover, the circuit is extremely simple, requires fewer parts, and the risk of failure is reduced, which has great effects.

[Brief explanation of drawings]

Fig. 1 is a corresponding diagram of the constituent means in the odor absorption control device for a wick type oil combustor of the present invention, Fig. 2 is a circuit diagram of an embodiment of the same device, and Fig. 3 is a diagram showing the use of the odor absorption control device of the present invention and the conventional odor absorption control device. FIG. 4 is a sectional view, and FIG. 5 is a circuit diagram of a conventional odor absorption control device. 21... Power supply, 22... Motor, 23... Capacitor, 24... Changeover switch, 24a... Common contact, 24b... Normally open contact, 24c... Normally closed contact, 26... Transistor.

Claims (1)

[Claims] 1. A motor for an odor absorption fan, a capacitor that is charged when extinguishing a fire, stops energizing the motor that is energized during charging after charging is completed, and discharges during combustion, and a battery that serves as a power source for the motor and capacitor. Odor absorption control for a wick-type oil combustor, consisting of a power source and a changeover switch that connects the capacitor to the power source and energizes the motor when extinguishing a fire, and discharges the capacitor when burning. Device.