JP3718994B2 - Light core type oil combustion equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ignition electrode mounting structure for a lantern type oil combustion apparatus that uses discharge energy to ignite the wick.
[0002]
[Prior art]
As an ignition device for an oil combustion apparatus using a lamp core, a heater type is generally used in which a current is passed through a filament to make it glow red, and kerosene that has soaked into the lamp core is vaporized and ignited. This heater type ignition system repeats ignition. As a result, the filament deteriorates and breaks in a relatively short period of time, and the filament must be replaced frequently.
[0003]
Therefore, in recent years, in order to solve this problem, as shown in FIG. 4, the discharge electrode 2 fixed to face the outer peripheral surface of the lamp core 1 that can move up and down, and the core holder 3 mounted on the inner peripheral surface of the lamp core 1 An apparatus is disclosed in which a discharge is made between a counter electrode 4 extending to the center of the lamp and the lamp core 1 is ignited using this discharge energy. With this discharge ignition method, the life of the ignition device becomes semi-permanent, and there is no need to replace the heater as in the conventional case. However, in the case of using the discharge to ignite the lamp core, the ignition energy is higher than that of the heater type. Since it concentrates only between the electrodes, the ignition point is limited, and various devices are required for setting the ignition conditions such as the electrode configuration and the ignition position.
[0004]
Therefore, as shown in FIG. 5, as disclosed in Japanese Patent Laid-Open No. 8-75164, the discharge electrode 2 faces the side surface of the lamp core 1 exposed from the gap between the inner and outer tubes, and is oblique to the tip of the discharge electrode 2. The negative electrode 4 is attached to the rear, the discharge electrode 2 is inclined to the side without the negative electrode 4 with respect to the lamp core 1, and the discharge electrode 2 is pressed against the side surface of the lamp core 1 in this inclined state, As shown in FIG. 6, as disclosed in Japanese Patent Laid-Open No. 6-341443, the discharge electrode 2 provided outside the lamp core 1 is opened on the lamp core 1 side, and the outer flame cylinder side is surrounded by an insulator 5 so as to face the counter electrode. A configuration is disclosed in which it is possible to prevent erroneous discharge to a place other than 4, and to further facilitate discharge to the counter electrode 4 by inclining the end of the discharge electrode 2 toward the lamp core 1.
[0005]
[Problems to be solved by the invention]
However, the conventional discharge ignition device has a problem that stable discharge ignition cannot always be performed only by adjusting the distance between the discharge electrode and the counter electrode. That is, between the discharge electrode and the counter electrode is a wick or kerosene composed of glass fiber that is an insulator, and when using altered kerosene, tar products adhere to the tip of the wick, Since the vaporization of kerosene is hindered, there has been a problem that it becomes difficult to ignite depending on how the electrodes are installed when the discharge ignition is performed across the lamp core. In addition, even in a device in which stable discharge is controlled, there is a problem that when a dry battery is used as a power source, there is an insulator between the electrodes, so that it is difficult to discharge if the voltage drops even slightly.
[0006]
In order to solve these problems, in Japanese Patent Laid-Open No. 8-75164, the tip of the negative electrode is positioned obliquely behind the discharge electrode, and the tip of the discharge electrode is pressed against the side surface of the lamp core. Even if it deteriorates, the so-called wick of the wick is surely interposed between the discharge electrode and the negative electrode so that the side surface of the wick can be ignited, but it is interposed between the discharge electrode and the negative electrode. Kevva is also a part of a lamp core made of glass fiber, which is an insulator, and there are no effects on the discharge between the electrodes in the state where several ribs are interposed between the electrodes, and a stable discharge can be secured. In terms of ignition performance, it exhibits outstanding ignitability. However, the state of the fluff that intervenes between the discharge electrode and the negative electrode changes with repeated up-and-down movement of the wick, and is stable between the electrodes. It is difficult to. That is, when a large amount of blemish intervenes between the electrodes, the discharge between the electrodes becomes unstable or the amount of vaporization increases and white smoke is emitted as described in the previous example. This has caused a problem that ignition cannot be performed and ignition performance is extremely deteriorated.
[0007]
In the present invention, the second electrode is formed by a plate-like end face having a predetermined shape as the electrode fixing metal fitting, and the end face is brought into contact with an inclination with respect to the vertical movement of the wick, so that the side face of the wick is appropriate. Thus, a stable ignition position is ensured, and the discharge at the tip of the wick is not interposed between the electrodes, so that the stability of discharge is ensured and stable ignition can be performed.
[0008]
[Means for Solving the Invention]
In order to solve the above-mentioned problems, the present invention provides a lamp core provided between the core inner cylinder and the core outer cylinder so as to be movable up and down, a support metal fitting fixed to the outer flame pan, and attached to this support metal fitting when it is at its highest position. A first electrode disposed so that a tip portion is positioned below the upper end of the wick; and a second electrode serving as an electrode fixing bracket for fixing the first electrode to the support bracket. A part of the fixing bracket is formed by a plate-shaped end surface having a predetermined shape, and the upper end of the end surface is disposed below the tip of the first electrode and on the wick core side, and the end surface is adapted to the vertical movement of the wick core. It has an inclination and is brought into contact with the light core.
[0009]
According to the above invention, between the first electrode having the tip disposed below the upper end of the lamp core at the highest rise and the second electrode inclined to the vertical movement of the lamp core and brought into contact with the lamp core Discharge at the side of the wick that is relatively unaffected by changes in the wick and the height of the wick due to combustion effects such as tar adhesion, and the end of the second electrode is inclined to inward the wick. By moving up and down so as to push in, the tip of the lamp core is prevented from interposing between the electrodes, ensuring the stability of the discharge and making the ignition condition constant. In addition, since the second electrode has a part of the electrode fixture for fixing the first electrode formed in a predetermined shape, the configuration can be simplified, the inter-electrode dimension can be ensured reliably, and the ignition condition is stable. Can be further improved.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided a wick type oil combustion apparatus, a wick provided between a core inner cylinder and a core outer cylinder so as to be movable up and down, a support fitting fixed to an outer baking pan, and a mounting bracket attached to the support fitting. And a second electrode serving as an electrode fixing fitting for fixing the first electrode to the support fitting, the second electrode being an electrode. A part of the fixing bracket is formed by a plate-shaped end surface having a predetermined shape, and the upper end of the end surface is disposed below the tip of the first electrode and on the wick core side, and the end surface is adapted to the vertical movement of the wick core. It has an inclination and is brought into contact with the light core.
[0011]
And, by discharging between the first electrode disposed at the tip below the upper end of the wick at the highest rise and the second electrode that is inclined to contact the vertical movement of the wick, Discharge at the side of the wick that is relatively unaffected by changes in the wick due to combustion effects such as tar adhesion and the height of the wick, and tilt the end face of the second electrode so that the wick is pushed inward. In this way, the lamp tip of the lamp core is not interposed between the electrodes, so that the stability of discharge is ensured and the ignition condition is made constant. In addition, since the second electrode has a part of the electrode fixture for fixing the first electrode formed in a predetermined shape, the configuration can be simplified, the inter-electrode dimension can be ensured reliably, and the ignition condition is stable. Can be further improved.
[0012]
Further, in the lantern type oil combustion apparatus according to claim 2, the second electrode is closely fitted in an insertion hole provided in the outer baking pan so as to face a position facing the first electrode.
[0013]
And since the 2nd electrode formed in the end surface is inserted in the insertion hole provided in the external fire tray, and faces the ignition position, a blocking member is not required and there is almost no inflow of air that affects combustion. Simplification and combustion stability can be ensured.
[0014]
According to a third aspect of the present invention, the tip of the first electrode is disposed within the width of the inclined portion of the second electrode and at a position having a predetermined interval on the outer flame side.
[0015]
Since the first electrode is disposed within the width of the inclined portion of the second electrode brought into contact with the lamp core so as to be pushed inward, and at a predetermined interval on the outer baking pan side, The core of the lamp core is not interposed in the discharge gap formed by the first electrode and the second electrode, the unstable phenomenon of discharge due to the cover can be eliminated, and a stable discharge can be formed on the side in close contact with the lamp core, The ignitability can be improved.
[0016]
【Example】
(Example 1)
1-3 is a figure explaining Example 1 of this invention.
[0017]
1 is a core outer cylinder connected to the upper surface of the oil tank, 2 is a core inner cylinder standing from the bottom of the oil tank, 3 is a lamp core held in the gap between the core inner cylinder 2 and the core outer cylinder 1, It moves up and down according to the power of a vertical mechanism (not shown). Reference numeral 4 denotes an outer baking dish having a large number of small holes on the outer periphery (wall) which is a part of the core outer cylinder 1, 5 denotes an electrode support fitting fixed to the outer peripheral surface of the outer baking dish 4 by spot welding, and 6 denotes a metal wire. An insertion hole provided on the upper surface of the electrode support metal fitting 5 and having a discharge portion 6a provided in the outer pan 4 with a first electrode forming a discharge side electrode with the outside of the conductor 6a covered with an insulator 6b, 6c, etc. It is inserted from 4a, and the stepped portion 6b of the insulator is brought into contact with the outer peripheral surface of the external fire tray 4 for positioning. In this state, as shown in FIG. 2, the discharge portion 6a of the first electrode 6 extends by bending the tip 6e so as to cover a part of the lamp core 3 when viewed from above. Reference numeral 7 denotes an electrode fixing bracket that presses another stepped portion 6 c of the first electrode 6 and is fixed to the electrode support bracket 5 with a screw 8. Further, a part of the electrode fixture 7 is processed into a predetermined shape, and a plate-like end surface portion is inserted through an inclined square hole 4b provided at a suitable position on the outer peripheral surface of the outer baking pan 4, and the lamp core 3 is pushed inward. The second electrode 7a is formed in contact therewith. Further, as shown in FIG. 1, the second electrode 7a has an inclined shape 7c having a curve from the lower end portion 7b to the upper end portion 7d, faces the vertical movement locus of the lamp core 3, and is shown in FIGS. As described above, the lamp core 3 is provided with a predetermined inclination with respect to the vertical movement, and the vertical movement of the lamp core 3 is guided by the inclined end surface 7e. And the discharge part front-end | tip 6e of the 1st electrode 6 is arrange | positioned so that it may be located in the outer flame tray 4 side from the front-end | tip 7d within the inclination width of the 2nd electrode 7a comprised as mentioned above, and it is separated from the lamp core 3. It is made to discharge toward the lamp core 3 side from a position.
[0018]
The operation of the discharge device configured as described above will be described.
When an ignition operation is performed by a core up-and-down mechanism (not shown), the lamp core 3 is guided and raised by the core outer cylinder 1 and the core inner cylinder 2. And if it raises to the lower end part 7b of the 2nd electrode 7a, it will rise while being pushed inward smoothly by the end surface 7e which has the inclination shape 7c and the inclination width, and if it raises to an ignition core high position, an ignition switch (not shown) ) Is activated, and a high voltage is applied between the first electrode 6 and the second electrode 7a by a high-voltage discharge device (not shown), and the discharge portion tip 6e of the first electrode 6 and the tip portion 7d of the second electrode 7a are The discharge starts. Due to this discharge, the fuel soaked in the nearby lamp core 3 is vaporized and ignited. And it burns to the whole circumference and combustion starts.
[0019]
In this way, when the lamp core 3 moves up and down, the inclined shape 7c of the second electrode 7a and the end face 7e having the tilt width guide the lamp core 3 to be pushed inward. The cracks generated in the part are not present. For this reason, it is not interposed in the discharge gap between the discharge portion tip 6e of the first electrode 6 and the tip portion 7d of the second electrode 7a disposed on the side of the outer pan 4 within the inclined width, and a discharge space can be ensured reliably. Stable discharge can be performed. In addition, since the second electrode 7a is formed by using a part of the electrode fixture 7 for fixing the first electrode 6, the discharge distance and the positional relationship between the first electrode 6 and the second electrode 7a can be ensured with high accuracy. Is. Furthermore, since the first electrode 6 and the second electrode 7a insert the outer flame tray 4 into the wick core 3 without a gap, the discharge device can be provided with a simple configuration without affecting the combustion. be able to.
[0020]
【The invention's effect】
As described above, according to the lantern type oil combustion apparatus of the first aspect, the first electrode having the tip disposed below the upper end of the wick at the highest rise and the vertical movement of the wick have an inclination. By discharging between the second electrodes that are in contact with each other, discharge is performed on the side surface of the wick that is relatively less affected by changes in the wick or the height of the wick due to the influence of combustion such as tar adhesion, and the second electrode. By tilting the end face of the lamp and moving it up and down so that the lamp core is pushed inward, the tip of the lamp core is prevented from interposing between the electrodes, ensuring discharge stability and making the ignition conditions constant. Yes. In addition, since the second electrode has a part of the electrode fixture for fixing the first electrode formed in a predetermined shape, the configuration can be simplified, the inter-electrode dimension can be ensured reliably, and the ignition condition is stable. Can be further improved.
[0021]
According to the wick type oil combustion apparatus of claim 2, since the second electrode formed on the end face is inserted into the insertion hole provided in the outer fire pan and faces the ignition position, a separate closing member is not required. Since there is almost no inflow of air that affects combustion, the structure can be simplified and the stability of combustion can be ensured.
[0022]
According to the wick-type oil combustion apparatus of claim 3, the wick-core type oil combustion apparatus has a predetermined interval within the width of the inclined portion of the second electrode abutted so as to push the wick inwardly, and at a predetermined interval on the outer baking pan side. Since one electrode is provided, the core of the lamp core is not interposed in the discharge gap formed by the first electrode and the second electrode, so that the unstable phenomenon of discharge due to the cover can be eliminated and the lamp core is in close contact with it. Therefore, stable discharge can be formed on the side face, and the ignitability can be improved.
[Brief description of the drawings]
FIG. 1 is a main part configuration diagram of a wick-type oil combustion apparatus showing Embodiment 1 of the present invention. FIG. 2 is a top view of the main part of the wick-type oil combustion apparatus. FIG. 4 is a side sectional view of an essential part of an ignition part of a conventional wick-type oil combustion apparatus. FIG. 5 is a conventional wick-type oil combustion apparatus. Fig. 6 is a cross-sectional top view of the main part of the ignition part of Fig. 6;
DESCRIPTION OF SYMBOLS 1 core outer cylinder 2 core inner cylinder 3 light core 4 outer flame tray 5 support bracket 6 1st electrode 7 electrode fixing bracket 7a 2nd electrode

Claims (3)

A lamp core that can be moved up and down between the core inner cylinder and the core outer cylinder, a support bracket fixed to the outer baking pan, and a tip attached to the support bracket so that the tip is located below the upper end of the lamp core when it is at its highest position. And a plate-like end face having a predetermined shape of a part of the electrode fixing metal fitting. The second electrode also serves as an electrode fixing metal fitting for fixing the first electrode to the support metal fitting. The upper end face of the first electrode is disposed below the tip of the first electrode and on the wick side, and the end face is inclined with respect to the vertical movement of the wick so as to contact the wick. A wick-type oil combustion device. The wick-type oil combustion apparatus according to claim 1, wherein the second electrode is inserted into an insertion hole provided in the outer baking pan so as to face a position facing the first electrode. The wick-type oil combustion apparatus according to claim 1, wherein the tip of the first electrode is disposed within a width of the inclined portion of the second electrode and at a position having a predetermined interval on the outer fire pan side.

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