JP3531365B2 - Oil burning equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel supply for an oil combustion apparatus, and more particularly to an oil combustion machine used in general households.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 5 and 6, a petroleum combustion apparatus of this type has a combustion section 42 provided in a body case 41.
Further, the fuel in the fixed tank 44 is supplied by the oil feed pump 43 and burned. The fuel supply to the fixed tank is
It is supplied from a cartridge tank 45 placed on the main body case 41 and removably accommodated in the main body case 41.

For supplying oil to the cartridge tank 45, the cartridge tank 45 is taken out from the main body case 41, the vertical direction is reversed, and then the valve portion 46 of the cartridge tank 45 is supplied.
The cap 47 having the above is removed, the fuel is injected into the cartridge tank 45 from the cap portion 48, it is confirmed that the fuel is supplied to the cartridge tank 45, and the cap 47 is fastened to the screw portion of the cap portion 48. Turn it over again so that it is on the bottom, and insert it into the body case 41.
The cap 47 is inserted into the receiving member 49 attached to the upper surface of the fixed tank 44, and placed on the fixed tank 44.

The valve in the cap portion of the cartridge tank 45 is opened by the pin 50 at the center of the receiving member 49, and the fuel in the cartridge tank 45 flows into the fixed tank 44. When the oil level of the fixed tank 44 rises to the valve position of the cap 47, the outflow of fuel from the cartridge tank 45 stops. When the fuel in the fixed tank 44 is supplied to the combustion section 42 by the oil feed pump 43, the oil level in the fixed tank 44 lowers,
Air is supplied from the valve portion of the cap 47 to the cartridge tank 45.
The fuel flows into the inside, and the fuel flows out by that amount, and the fuel in the cartridge tank 44 is supplied so as to keep the oil level of the fixed tank 44 constant.

[0005]

In the above-mentioned conventional petroleum combustion apparatus, in order to supply fuel to the cartridge tank 45, the cartridge tank 45 is pulled out from the main body case 41,
It is necessary to turn over the cartridge tank 45 in order to turn the cap 47 upward, and after the fuel is supplied, it is necessary to tighten the cap 47 and turn the cartridge tank 45 upside down again for insertion into the main body case 41. It was annoying.

Further, the cap 47 is tightened by screwing the base portion 48. Due to insufficient tightening of the cap 47, the cap 47 may come off when the cartridge tank 45 is turned over, and fuel may flow out. There was a problem.

Particularly in an aging society in recent years, the force for tightening the screw is reduced due to the decrease in grip strength, and an urgent improvement is desired. Further, when fuel is supplied to the fixed tank 44, the oil level rises up to the valve portion of the cap 47, and the cartridge tank 45 maintains the constant oil level by the replacement of air.
In order to supply the internal fuel, the valve portion of the cap 47 is always wet with the fuel, and when the cap 47 is removed to refuel the cartridge tank 45, the fuel adheres to the hand and becomes odorous and dirty. Had.

[0008]

In order to solve the above-mentioned problems, the present invention has an oil supply port for supplying fuel on the upper surface and discharges fuel.
Cartridge with integrated pumping pump
Store the fuel from the Gitank and this cartridge tank
Fixed tank and the oil level that detects the oil level of the fixed tank
Supplying the fuel of the detection means and the fixed tank to the carburetor
An oil feed pump and pumping up the cartridge tank
Cartridge tank power supply
The contacts provided on the side surface and the
A power supply terminal that also serves as a detachment detection means that is composed of a digit contact
Power supply from the child based on the signal of the oil level detection means
Alternatively, it is configured to cut off .

With the above construction, it is not necessary to turn over the cartridge tank during refueling, and since the refueling port is sturdy, oil does not adhere to the hand when the cap of the refueling port is removed. In addition, the cartridge tank is
Cartridge only when properly placed on a constant tank.
The contacts on the side of the tank
Through the pump, based on the signal from the oil level detection means.
As the power is supplied, the fixed
The oil can be supplied to the tank.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The present invention refuels the top surface.
A pumping pump that has a fuel inlet and discharges fuel
The attached cartridge tank and this cartridge tank
Tank for storing fuel from the tank, and the fixed tank
Oil level detection means for detecting the oil level of the
And a fuel pump for supplying the fuel to the carburetor.
As a power supply means for the pump for pumping the ridge tank,
Contact point provided on the side of the cartridge tank and facing it
Attaching / detaching detection means composed of contacts provided on the main body side at the position
From the power supply terminal that also serves as the
The power is supplied or cut off based on the above.

When refueling the cartridge tank, the cartridge tank is taken out of the main body case, carried to the fuel storage location, and the refueling port lid on the upper surface of the cartridge tank is removed to refuel. Since the oil level in the cartridge tank is always below the filler cap, the filler cap will not get wet with fuel and will not stain your hands.

Further, even when the cartridge tank is mounted on the main body case, the cartridge tank is not turned over again, so that the fuel filler lid does not come off and the fuel does not flow out. Further, since the liquid level of the fixed tank is controlled by the liquid level detection means provided in the fixed tank, the constant liquid level can be maintained.

Further, the contact on the side of the cartridge tank and the contact on the side of the main body case insertion side are made to have a spring property, and the contacts are pressed against each other so as to overlap and contact each other in the insertion direction of the cartridge tank. This ensures the conduction of the contacts.

Further, by forming the upper surface of the fixed tank on which the cartridge tank is mounted so that the side contact side of the cartridge tank is low, even if a gap occurs between the contacts when the cartridge tank is mounted in the main body case, the cartridge tank The side contact of the is tilted toward the contact side of the main body case to ensure conduction.

The same effect can be obtained by providing a convex portion for urging the cartridge tank in the contact direction of the main body case on the side surface of the main body case facing the contact of the main body case facing the side contact of the cartridge tank.

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is an external sectional view of an oil combustion apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view of a main part of the oil combustion apparatus.
3 (a) and 3 (b) are cartridge tank mounting diagrams, and the drawings are circuit diagrams of the oil combustion device.

In the figure, reference numeral 1 is a main body case, which has an opening / closing tank door 3 for attaching / detaching a cartridge tank 2 at the top, a propeller fan 4 for circulating hot air at the rear part, and a hot air outlet on the opposite surface (see FIG. (Not shown). Float 5 is located at the bottom of the cartridge tank 2 and floats on the liquid surface on the upper surface.
A fixed tank having a float switch 9 having a switch 8 that opens and closes by a magnet 7 provided in the
Reference numeral 11 denotes a vaporizer having a heater 11a therein, 12 has a solenoid 13 at a lower portion thereof, an ejection port having a nozzle therein, the oil feed pump 10 and the vaporizer 11 have an oil feed pipe 14
Is communicated with.

Reference numeral 15 is a burner head having a plurality of small holes on the outer peripheral side facing the jet outlet 12, 16 is a combustion cylinder provided so as to cover the burner head and having an open top, and 17 is mounted with the burner head 15 and the combustion cylinder 16. It is a box-shaped duct for placing the propeller fan 4 of the main body case 1 in communication with the warm air outlet. Reference numeral 18 denotes a side surface of the main body case on the insertion side that guides the cartridge tank.

At the top of the cartridge tank 2 is a fuel filler port 1
It has a filler port lid 20 and a pumping pump 21 which are fitted to the fuel injection port 9 and the filler port. The pumping pump is composed of a plunger 22 of a magnetic column inside and a coil portion 24 on the outer periphery having a spring 23 at the upper part, a suction port 25 opening at the lower part inside the cartridge tank, and a discharge port 26 at the side surface of the cartridge tank. It opens downward. The coil part of the pump is a contact A provided on the side of the cartridge tank.
It is connected to 27. Reference numeral 28 denotes an oil receiving portion which has an upper surface opened at a position facing the discharge port of the pumping pump and one of which communicates with the central portion of the upper surface of the fixed tank.

Numeral 29 is a spring-like contact B29 which is provided at a side surface position of the main body case insertion port facing the contact A of the cartridge tank, one end of which is fixed to the insulating base 30, the central portion of which is projected inward in an arc and displaced outward. Is connected to a drive circuit (not shown) via the float switch 9 of the fixed tank 4. A pressing leaf spring 31 is provided on a side surface of the main body case 1 on the side where the cartridge tank 2 is inserted and faces the contact A27 and the contact B29, and protrudes in an arc shape toward the side where the cartridge tank 2 is inserted and whose upper end is fixed to the main body case 1.

Next, the operation and action will be described. When the operation switch 32 is turned on, the heater 11a of the carburetor 11 is energized and the temperature of the carburetor 11 rises to reach a predetermined temperature. When the oil feed pump 14 is driven, the solenoid 13 provided below the ejection port opens the nozzle. The fuel sent from the oil feed pump 14 is gasified in the vaporizer 11 and ejected from the nozzle. The igniter 33 provided in the vicinity of the burner head 16 is discharged, and the gas ejected from the nozzle is ejected and ignited from the small holes on the side surface of the burner head 16 to start combustion. At the same time, the propeller fan 4 provided on the back surface of the main body case 1 rotates, and hot air is blown from the hot air outlet on the front surface to heat the inside of the room.

On the other hand, when the cartridge tank 2 is attached to the main body case 1, the fuel in the cartridge tank 2 is float switch 9 when the liquid level in the fixed tank 5 is low.
Is energized, and at the same time, the contact A27 on the side surface of the cartridge tank 2 and the contact B29 on the side surface of the main body case 1 are energized, the coil portion 24 of the pumping pump 21 is energized, and the plunger 22 moves up and down to move the cartridge tank. The fuel in 2 is pumped up and discharged from the discharge port 26.

The fuel that has flowed out passes through the oil receiving portion 28 therebelow and flows into the fixed tank 5. When the oil level in the fixed tank 5 rises and the float 6 rises to the top, the float switch 9
The contact 8 is opened, the conduction of the pumping pump 21 is stopped, and the pumping pump 21 is stopped. The fuel is supplied to the carburetor 11 by the oil feed pump 10, and when the oil level in the fixed tank 5 is lowered, the flow and the switch 9 are energized, the pump 21 of the cartridge tank 2 is driven again, and the fuel is supplied to the fixed tank 5. To be done.

[0024]

As is apparent from the above description, according to the present invention, the following effects can be obtained.

When the cartridge tank is taken out from the main body case, the contact A on the side surface of the cartridge tank and the contact B on the side surface on the main body case insertion side are separated, the conduction to the pump is cut off, and the pump is stopped. Simultaneously with the stop, the fuel in the pumping pump has a suction port below the discharge port, and therefore flows back into the cartridge tank due to the siphon effect and does not drip from the discharge port. Further, as for refueling the cartridge tank, the refueling port lid at the top of the cartridge tank can be opened to refuel, so there is no concern that the fueling port lid will get wet with fuel, and the hands will not get dirty.

Further, even if the filler cap is not completely closed, it is not necessary to turn over the cartridge tank, so that the fuel inside does not flow out.

The contacts of the cartridge tank and the contacts on the side of the main body case insertion side are constructed such that when the fixed tank is inserted into the cartridge tank insertion port of the main body case, the contacts rub against each other to establish conduction. It is possible to prevent conduction failure due to foreign matter or oxide film adhering to the surface, and in the unlikely event that the main body falls, the cartridge tank slides upward and the contacts are blocked, so there is no danger of the pumping pump operating.

Further, by lowering the contact side of the upper surface of the fixed tank, when the cartridge tank is mounted, the cartridge tank tilts toward the contact side, so that the contact is surely conducted even if there is a gap between the cartridge tank and the main body case. To do.
The contact between the contacts can be made more reliable by pressing the cartridge tank toward the contact side when inserting the cartridge tank with the protruding portion that urges the opposing side surface of the contact of the main body case.

[Brief description of drawings]

FIG. 1 is an overall sectional view of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main parts of the first embodiment.

FIG. 3 (a) is a cartridge tank mounting diagram in the first embodiment. FIG. 3 (b) is a cartridge tank mounting diagram in the first embodiment.

FIG. 4 is a circuit diagram of the first embodiment.

FIG. 5 is an overall cross-sectional view of a conventional combustion device

FIG. 6 is a sectional view of a main part of a conventional combustion device.

[Explanation of symbols]

1 body case 2 cartridge tank 5 fixed tank 9 float switch 10 Oil pump 19 Filling port 21 Pumping pump 27 contacts A 29 contact B 31 Convex part (press leaf spring)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Kari ▼ Norio 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-3-160211 (JP, A) JP Sho 64-41716 (JP, A) Actual development Sho 55-89037 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F23K 5/14

Claims (4)

(57) [Claims] 1. A fuel having an oil supply port on the upper surface for supplying fuel.
Cart with an integrated pump for discharging water
Ridge tank and fuel from this cartridge tank
Detects the fixed tank to store and the oil level of the fixed tank
Supplying oil level detection means and fuel from the fixed tank to the carburetor
And an oil feed pump for
The cartridge tank is used as a power supply means for the lift pump.
Contacts on the side of the main body and the side of the main unit facing
The power supply that also serves as the attachment / detachment detection device
Based on the signal of the oil level detection means from the supply terminal,
Oil burning equipment configured to supply or shut off . 2. The petroleum combustion according to claim 1, wherein one of the contact on the side of the cartridge tank and the contact on the side of the main body case insertion side has a spring property and overlaps and contacts in the insertion direction of the cartridge tank. apparatus. 3. The petroleum combustion device according to claim 1, wherein an upper surface of the fixed tank on which the cartridge tank is mounted has a lower side surface contact side of the cartridge tank. 4. The petroleum combustor according to claim 1, wherein a convex portion for urging the cartridge tank so as to press it toward the contact point of the main body case is provided on a side surface of the main body case insertion side opposite to the contact point.