JP2988577B2 - Oil-fired discharge igniter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge igniter for a petroleum combustor which ignites a combustion wick by utilizing discharge.

[0002]

2. Description of the Related Art In general, an up-and-down type petroleum combustor has a thin filament containing platinum as a main component, and a current from a dry battery is passed through the filament to cause red heat, and the heat ignites the combustion wick. Also, since a large current can be used when using an AC power supply such as a vaporization type oil combustor, even with a core up-down type oil combustor, it is possible to attach a discharge electrode near the combustion core and ignite by a discharge spark. .

[0003]

[0004] In general, a vertical core type petroleum combustor uses dry cells as a power source because portability is regarded as important, and constitutes a product different from a fan heater using an AC power source. ing. When the ignition core is ignited by the discharge spark using a dry battery, the performance of the new igniter is likely to be practical with a new dry battery. The discharge spark rapidly weakened and became unable to ignite, and actual commercialization was not possible.

[0004] In addition, when the combustion time elapses using an oil combustor for a long time, the height of the combustion wick changes,
A slight change occurs on the surface of the combustion wick due to, for example, the adhesion of tar, and ignition may not occur if the dimensions of the combustion wick and the discharge electrode are slightly shifted. That is, the discharge spark separates from the combustion core and does not ignite at all, or the white smoke (petroleum vapor) comes out, resulting in a state in which ignition is not possible at all, and it is necessary to solve this point.

[0005] Conventional ignition heaters using a filament that glows red light have a large amount of deformation and disconnection of the filament, have a high degree of wear, and have many complaints due to poor ignition. On the other hand, the above-mentioned ignition device has sufficient durability because there is no consumption of the ignition electrode in place of the ignition heater, and if the reliability of ignition is improved by the discharge spark using the dry battery, the ignition failure of the core up-down type oil combustor is poor. Complaints about it are greatly reduced.

[0006]

According to the present invention, to solve the above-mentioned problem, a combustion wick 4 which moves up and down by rotation of a wick vertical shaft 3 is mounted between a wick inner cylinder 1 and a wick outer cylinder 2, Inner / outer cylinder 1
The discharge electrode 5.5a is looked into the combustion wick 4 exposed at the upper part of 2, and the wick vertical shaft 3 is rotated in the wicking direction by the ignition knob 6, and the vicinity of the ignition position of the ignition knob 6 An ignition switch 7 that opens and closes in conjunction with the ignition switch 6 is provided. In an oil burner that ignites with a discharge spark on the combustion wick 4 raised when the ignition knob 6 is operated, the ignition switch 7 operates in the vicinity of the ignition position of the movable ignition knob 6. Further, a damper 8 having a large resistance to the operating force is provided to increase the centering operation force near the ignition position.

The ignition position of the ignition knob 6 linked to the ignition switch 7 and the damper 8 is provided at a higher position than the normal combustion position, and the discharge between the discharge electrodes 5, 5a is performed while raising the combustion core 4 higher than the combustion position. A spark is generated to increase the certainty of ignition.

[0008]

When the ignition knob 6 is operated to rotate the wick vertical shaft 3, the combustion wick 4 mounted on the inner and outer cylinders 1, 2 rises, and the combustion wick 4 is located above the inner and outer cylinders 1, 2. Project to At this time,
Since the ignition switch 7 is closed and the damper 8 is operated during the movement of the combustion wick 4 to the maximum protruding position, the operating force for raising the wick by the ignition knob 6 is suddenly increased by the damper 8, After the operation of the burner 8, the rising speed of the wick 4 suddenly decreases. Accordingly, the combustion wick 4 slowly rises while generating a discharge spark between the two discharge electrodes 5.5a, and the positional relationship between the burning wick 4 and the discharge electrodes 5.5a during the ascending is optimized for ignition. It ignites when it reaches the position.

By the way, in an ignition device using a discharge spark,
The optimal position for this ignition is that if the dry battery is consumed or the combustion wick 4 deteriorates, the optimal position for ignition is only one point even if the combustion wick 4 has a certain width. It passed instantly and failed.

According to the present invention, since the operating force near the ignition position is increased by the operation of the damper 8, the combustion wick 4 slowly rises and slowly passes through the optimum position for ignition. Even the burned wick 4 can reliably ignite.

The ignition position at which the ignition switch 7 and the damper 8 operate is set higher than the position of the combustion core 4 during normal combustion, and the ignition is performed while raising the combustion core 4 higher than the normal combustion position. As a result, the ignition switch 7 and the damper 8 do not operate in the normal combustion position, and the fine adjustment of the combustion wick 4 can be performed with a light operating force.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure will be described with reference to the embodiment shown in the drawing. 1 is a core inner cylinder, 2 is a core outer cylinder, 4 is a combustion wick accommodated between the core inner and outer cylinders 1 and 2. Outer cylinders 1 and 2 are oil tanks 9
Mounted on top of. Reference numeral 3 denotes a wick vertical shaft, and the combustion wick 4 is moved up and down by rotating the wick vertical shaft 3. 5.5a
Is a discharge electrode provided opposite to the side or upper edge of the combustion wick 4, and one discharge electrode 5 (plus side) as shown in the figure.
The tip of the discharge electrode 5a is viewed in the vicinity of the raised side of the combustion wick 4, and the other discharge electrode 5a (minus side) is opposed to the tip of the discharge electrode 5 upward through a gap.

Reference numeral 6 denotes an ignition knob for rotating the core vertical shaft 3,
Reference numeral 6a denotes a knob driven by the ignition knob 6, and 10 denotes an operation knob provided on the knob 6a.
In the embodiment, when the ignition knob 6 is depressed, the operation knob 1
0 is also depressed, and the operation knob 10 is turned to the knob lever 6a.
, The core vertical shaft 3 rotates. In the embodiment shown in FIGS. 4 and 5, the ignition knob 6 is directly attached to the core vertical shaft 3, and the ignition knob 6 is rotated to rotate the core vertical shaft 3.

Reference numeral 7 denotes an ignition switch for supplying electricity to the discharge electrodes 5, 5a. Since the ignition switch 7 closes from the ignition position in the middle of raising the core and starts discharging, the height of the combustion core 4 changes. It ignites when it reaches the optimal position for ignition.

Numeral 8 is a damper which has a large resistance to the operating force. The damper 8 is interlocked when the ignition knob 6 comes close to the ignition position like the ignition switch 6, and is connected to the damper 8 from the fire extinguishing position. Ignition knob 6 until linked
Moves mainly because it only rotates the core vertical shaft 3, and when it works together with the damper 8, it suddenly becomes heavy, so the rotation of the core vertical shaft 3 becomes slow, and the combustion core 4 rises slowly and surely. It started to ignite.

FIG. 1 shows an embodiment of an oil type damper 8.
This type of damper 8 has the feature that the operating force is heavy when trying to move quickly, and the operating force is light when trying to move slowly intentionally. It is most suitable for the core lifting device that can be freely selected. The damper 8 is attached to the core upper and lower substrate 11, and a rack gear 12 is formed on the ignition knob 6 that moves up and down along the sliding guide 11 a of the core upper and lower substrate 11, and meshes with the pinion gear 8 a of the damper 8. I have. Because of this,
When the ignition knob 6 is pushed down along the sliding guide 11a, the rack gear 12 suddenly meshes with the pinion gear 8a of the damper 8 near the ignition position, and a strong pushing force is required. Is suddenly slow.
The ignition knob 6 closes the ignition switch 7 near the ignition position.

Reference numeral 13 denotes a return spring for lowering the combustion wick 4 raised for ignition to a fire extinguishing position, reference numeral 14 denotes a rotary plate on which the return spring 13 is mounted, and reference numeral 14a denotes a locking portion of the rotary plate 14; The rotating plate 14 rotates together with the rotary spring 14 and accumulates energy in the return spring 13, and the locking portion 14 a of the rotating plate 14 engages with the lock portion 15 a driven by the seismic weight 15,
In the normal combustion position.

The ignition knob 6 can rotate the rotary plate 14 further than the engagement position with the locking portion 14a, and the knob lever 6a in the normal combustion position shown by the chain line in FIG. 1 can rotate to the solid line position. For this reason, the combustion wick 4 can be raised higher than the normal combustion position, and the moving distance can be increased even with the deteriorated combustion wick 4, so that the reliability of ignition is improved.

Reference numeral 16 denotes a return spring for returning the ignition knob 6 to the old position. When the ignition knob 6 returns to the old position as shown in FIG. 2, the knob 6a also returns to the normal combustion position indicated by the solid line by the return spring 13. . Further, since the core vertical shaft 3 is driven by the knob 6a, the height of the core can be finely adjusted by using the operation knob 10, and the knob 6a can be largely operated to the fire extinguishing position indicated by the chain line.

FIGS. 4 and 5 show an embodiment relating to a dial knob type core lifting device for performing an ignition operation, a fine adjustment operation of a combustion amount, and a fire extinguishing operation by an ignition knob 6, wherein an ignition switch 7 and a damper 8 are provided. When the combustion wick 4 is raised above the normal combustion position, the damper lever 8b is pushed to extend the damper spring 8c, and the ignition switch 7 is closed.
At this time, a strong force was required to extend the damper spring 8c, and the rotation speed of the ignition knob 6 was suddenly reduced, and the rising speed of the combustion wick 4 was reduced, thereby increasing the reliability of ignition.

Since the ignition position is set to be higher than the position of the combustion wick 4 during normal combustion, if the operator operates the ignition knob 6 after ignition and is automatically returned by the damper spring 8c, The ignition switch 7 is opened, the damper 8 is also disengaged, and normal combustion is performed. When combined with an automatic center lowering mechanism using the return spring 13, the lock portion 15a and the locking portion 14a engage to return the combustion wick to the normal combustion position, and normal combustion is performed. For this reason, the fine adjustment operation of the combustion amount and the fire extinguishing operation can be easily performed by operating the ignition knob 6.

[0022]

As described above, according to the present invention, the ignition position is provided in the middle of raising the combustion wick 4, and the closed circuit of the ignition switch 7 and the damper 8 are linked in the ignition position, so that a light operating force can be applied to the ignition position. The operating force of the combustion wick 4 that has risen suddenly becomes heavy, and the wicking speed becomes slow. Therefore, the combustion wick 4 slowly rises at the ignition position, so that even when the dry battery is consumed or the combustion wick 4 is deteriorated and the width of the optimal position for ignition is narrowed, the ignition can be reliably performed, and the discharge using the dry battery as a power source can be performed. This makes it possible to commercialize a spark ignition device.

The operation of the ignition knob 6 allows the combustion wick 4 to be raised higher than the normal combustion position, and the ignition position is set higher than the combustion position during normal combustion. Can be operated by operating the ignition knob 6, and by interlocking with the damper 8, even if the distance between the position of the combustion wick 4 during normal combustion and the position of the combustion wick 4 at the time of maximum protrusion is reduced, The ignition device using the discharge spark according to the present invention can be put to practical use also in a simple core up-down system in which the ignition can be reliably performed and the oil combustor is operated only by the ignition knob 6.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of a lever-operated core lifting device according to an embodiment of the present invention, showing an ignition state.

FIG. 2 is a front view of a main part of the embodiment shown in FIG. 1 during combustion.

FIG. 3 is a sectional view of a main part of an oil combustor in which the product of the present invention is installed.

FIG. 4 is a partially cutaway plan view of a main part of a dial knob-operated core lifting device according to another embodiment.

FIG. 5 is a partially cutaway front view showing a main part of the embodiment shown in FIG. 7 during combustion.

[Explanation of symbols]

 Reference Signs List 1 core inner cylinder 2 core outer cylinder 3 core vertical axis 4 combustion core 5 discharge electrode 5a discharge electrode 6 ignition knob 7 ignition switch 8 damper

Claims (2)

(57) [Claims] A core vertical shaft (3) between a core inner cylinder (1) and a core outer cylinder (2).
The combustion wick 4 which moves up and down by the rotation of the core is attached, the discharge electrodes 5.5a are viewed through the combustion wick 4 exposed above the inner and outer cylinders 1.2, and the wick vertical shaft 3 is moved by the ignition knob 6. An ignition switch 7 that rotates in the centering direction and opens and closes in the vicinity of the ignition position of the ignition knob 6, and ignites the combustion core 4 that has risen when the ignition knob 6 is operated with a discharge spark. In the combustor, an oil combustor is provided which has a damper 8 which works in the vicinity of the ignition position of the movable ignition knob 6 and has a large resistance to the operation force, and has a large centering operation force near the ignition position. Discharge ignition device. 2. An ignition position of an ignition knob 6 interlocked with an ignition switch 7 and a damper 8 is provided at a higher position than a normal combustion position, and discharge is performed between discharge electrodes 5, 5a while raising a combustion core 4 higher than the combustion position. The discharge type ignition device for an oil combustor according to claim 1, wherein the ignition is performed by generating a spark.