JPH0328628A - Smell controller of wick type oil burner - Google Patents

Abstract

PURPOSE:To reduce electric power consumption by connecting a resistor in parallel with a series circuit composed of a power source, a smell sucking fan motor, a change-over switch, and a capacitor through the change-over switch. CONSTITUTION:A power source 21, a smell sucking fan motor 22, a change-over switch 24, and a capacitor 23 are connected serially. A resistor 25 is connected in parallel with the capacitor 23 through the change-over switch 24. The change- over switch 24 is connected to a normally closed contact 24c, a normally opened contact 25b to a resistor 25. The change-over switch 24 interlocking with a lug of a wick type oil burner is turned to the side of a normally opened contact 24b in combustion, and when a flame is extinguished, it is turned to the side of the normally closed contact 24c. At this time, a capacitor begins charging to rotate the motor. When charging completes, the motor stops. Accordingly, electricity does not flow in combustion to lengthen a power source lifetime of a battery and the like.

Description

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

Conventional technology Generally speaking, wick-type oil combustors have the problem 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 produces a strong odor. Ta.

Recently, in order to reduce the odor generated when a lamp is extinguished, a method has been proposed in which an odor absorbing device such as a fan is operated at the same time as the extinguishing of the lamp, and the petroleum vapor that continues to evaporate from the wick is sucked into the tank and then released to the outside. Figures 2 and 3 show a wick-type oil combustor 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 the oil vapor that continues to vaporize from the top of the wick 1 is removed. It is sucked into the tank 4 as shown by the arrow and discharged to the outside through the discharge port 6.

According to this wick-type oil combustor equipped with an odor absorbing device, the oil vapor that continues to be generated after extinguishing the fire does not flow into the high-temperature combustion tube 6, but is released into the atmosphere through the inner metal of the tank 4, so that the oil vapor is thermally decomposed. The irritating odor caused by irradiation is eliminated, and 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. 1. When the lamp wick upper and lower knobs 7 are rotated to raise the lamp wick 1 and ignited by an igniter (not shown), the common contact 8a of the switch 8 that is linked to the lamp wick upper and lower knobs 7 is switched to the normally open contact 8b side. As a result, the capacitor 10 is charged via the switch 8 and the resistor 9 [7], and power is supplied to the transistors 11 and 12, so that these transistors 11 . 12 turns 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, transistor 12, switch 8, resistor 13
, 14 to the base of the transistor 16, and this transistor 16 is turned 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, resistors 17 and 1
Charging of the capacitor 19 is started via the capacitor 8, and when the charging voltage reaches a certain value, the comparators 20 and 21 are activated to turn off the transistor 11. As a result, the transistor 12 is also turned OFF, and furthermore, the transistor 16 to which power has been supplied 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 is connected to the controller. While the capacitor 19 is charged to a constant voltage (1), it rotates to perform the odor absorbing operation, 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 22 serving as the power source to the transistors 11 and 12 as described above. For example, when I measured this conventional circuit, I found that the voltage of the battery 22 was 3.2V and the current was about 0.83 mA.

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 22. For example, when lighting a lamp wick, the battery voltage is 3V, the flow to the ignition heater is TIIA, and the time required for ignition is 6 seconds, then the total power required for ignition is 3X1X5.
==15W-. With this calculation, 0.83mA as in the conventional example
If the battery is used for 10 hours with i-streaming, the battery voltage will be
3v flowing current 0.83mA=0.83X10A
Consumption time 10 hours = 10 x 60 x 60 seconds = 38
X10' Power consumption = 3X0.83X10 X36X10' = 8
This is 9.84W, which is about 6 times the ignition power mentioned above, and therefore consumes the same power as 7 ignition operations including normal ignition. As a result, battery life is significantly shortened.

The present invention was made in view of these points, and aims to improve the life of the power source by eliminating wasteful consumption of power sources such as batteries.

Means for Solving the Problems In order to achieve the above object, the present invention forms a closed circuit in series with a power supply, a motor, a capacitor, and a changeover switch, and connects a resistor to the capacitor of this closed circuit via the changeover switch. The capacitors are connected in parallel, and the capacitor is configured to regulate the rotation time of the motor according to the charging time.

Function The present invention is structured as described above, so during combustion, the selector switch switches to the resistance side and discharges the electric charge stored in the capacitor, so no power is consumed, and the casing and combustion When the capacitor is completely charged during stoppage, the charging action is automatically stopped and no power is consumed thereafter, making it possible to extend the life of the power supply.

EXAMPLE Below, one example will be explained using FIG. 1. In FIG. A capacitor is connected in series with the motor 22 via a changeover switch 24, and is connected to a common contact 24a of the changeover switch 24. And the normally open contact 24b of the changeover switch 24
forms a complete closed circuit with the capacitor 23 via the resistor 26,
A normally closed contact 24c is connected to the motor 22.

Based on the above structure, when this control circuit is used in a wick-type oil combustor as explained in FIG. 2 and FIG. Common contact 24 of the changeover switch 24 linked to the switch 7
A is switched to normally open connection 2 4 b side and capacitor 23
The electric charge charged during the combustion stop is discharged, and the power supply 2
The circuit No. 1 becomes open, the motor 22 stops, and no current flows.

In other words, the flow of electricity when the button is turned on while the appliance is burning, in other words, there is no need to waste electricity.

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 that was discharged during combustion is started, and the motor 22 is turned off. Start rotating. The motor 22 rotates while the capacitor 23 is being charged, and when the capacitor 23 is completely charged, the motor 22 stops rotating. That is, while the capacitor 23 is completely charged in the housing (about 1 minute), petroleum vapor that continues to vaporize from the upper part of the lamp wick is sucked into the tank 4 and then released to the outside.

Note that the capacitor 23 needs to have a charging capacity sufficient for the same rotation of the motor 22, and if the voltage of the power source 21 is 3V, about 1 faranod is required. Appropriately, the resistor 26, which protects the housing during discharge, has a value of about 100Ω.

Effects of the Invention As is clear from the description of the embodiments, according to the present invention, no wasteful electricity flows during combustion of the appliance, so 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 circuit diagram of an odor absorption control device according to an embodiment of the present invention, FIG. 2 is a top view of a combustion appliance using the present invention and a conventional odor absorption control device, and FIG. FIG. 4 is a circuit diagram of a conventional odor absorption control device. 21... Electric L22... Motor, 23.
... Capacitor, 24 ... Selector switch, 25 ... Resistor.

Claims (1)

[Claims] (1) A series closed circuit formed by a power source such as a battery, a motor for an odor absorbing fan, a capacitor, and a changeover switch, and a resistor connected in parallel to the capacitor of this closed circuit via the changeover switch, The capacitor sets the rotation time of the motor according to the charging time.