JP3555145B2 - Electric shock prevention structure of discharge ignition device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a discharge igniter for an oil-fired combustor that ignites a combustion wick by using electric discharge. Related to a structure for preventing the fluid from flowing to the outside.
[0002]
[Prior art]
Although not commercialized, a technique of igniting a combustion wick by using discharge by providing a discharge electrode and a counter electrode with a combustion wick sandwiched therebetween as disclosed in JP-B-63-35244 is known. However, the reason why an ignition device for supplying power to a dry battery has not been commercialized to date is considered to be ignition failure due to poor ignition performance due to fuel oil, deterioration of a combustion wick, adhesion of tar, and the like.
[0003]
The applicant is in the process of developing and studying the commercialization of an oil combustor using this discharge method, and has filed Japanese Patent Application Nos. 4-345217, 4-345218, 5-62642, and the like. I have a proposal.
[0004]
[Problems to be solved by the invention]
When cleaning and repairing the oil combustor, remove the combustion cylinder and work, but if you accidentally touch the electrode and turn on the switch, there is no danger to the human body, but the high voltage is instantaneously There is a drawback of flowing and surprised, and a solution is desired.
[0005]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention provides an oil combustor in which a combustion wick 1 looks at a discharge electrode 2 and a counter electrode 3 for discharge ignition and burns in a combustion cylinder 4. An operating plate 5 is provided in the combustor body in response to the conductive portion 2a of the discharge electrode 2 so that the operating plate 5 contacts the conductive portion 2a of the discharge electrode 2 to ground when the combustion tube 4 is removed. This is an electric shock prevention structure of the discharge type ignition device.
[0006]
[Action]
Maintenance such as checking and adjusting the state of the combustion core 1 of the oil combustor and the gap size of the ignition electrode 2 and the counter electrode 3 is performed with the combustion tube 4 removed, and the discharge electrode 2 and the counter electrode 3 are exposed. Therefore, if the ignition device is operated while inadvertently touching the electrode with a hand or the like, a high voltage current flows to the ignition electrode 2 and a large shock is felt.
[0007]
In the present invention, when the combustion tube 4 is removed for maintenance, the operating plate 5 attached to the combustor body comes into contact with the conductive portion 2a of the discharge electrode 2, so that even if the ignition device is operated by mistake, the high-voltage current is activated. Since the plate 5 is grounded to the main body of the combustor, no shock is felt even when the ignition electrode 2 is touched by a hand.
[0008]
【Example】
Hereinafter, the structure will be described with reference to the drawings showing the embodiment. FIG. 1 is a cross-sectional view of a main part of the present invention when a combustion cylinder is mounted, and FIG. 2 shows when a combustion cylinder is not mounted. FIG. 3 is a plan view of an electrode portion in which a discharge electrode and a counter electrode are integrated, and FIG. 4 is a sectional view of a main part of an oil combustor to which the present invention is attached.
[0009]
Reference numeral 1 denotes a combustion core for sucking up oil for combustion, reference numeral 2 denotes a discharge electrode (plus electrode) viewed close to the combustion core 1, and reference numeral 3 denotes an upper edge portion of the combustion core 1 facing the discharge electrode 2, and a back side. A discharge is caused between the two electrodes 2 and 3 by a closed circuit of a switch circuit (not shown) by a counter electrode (negative electrode) provided in a portion or the like, and the combustion wick 1 is ignited.
[0010]
Reference numeral 4 denotes a combustion cylinder provided above the combustion wick 1 and a wick adjuster 6 for accommodating the combustion wick 1 and includes an inner flame cylinder 4a, an outer flame cylinder 4b, an outer cylinder 4c, and the like. Reference numeral 5 denotes an operating plate attached to a combustor body such as a core adjuster 6, 2a denotes a conductive portion having the same potential as the discharge electrode 2, and the illustrated conductive portion 2a is small at a connection portion between the discharge electrode 2 and a high-voltage electric wire. A gap is formed and the metal bar is exposed.
[0011]
The operating plate 5 is provided with a spring adjacent thereto, or the operating plate 5 is made of a thin metal plate to have a spring property. The spring property causes the operating plate 5 to contact the exposed conductive portion 2a. Further, a part of the operating plate 5 is in contact with the combustion tube 4, and the gravity of the combustion tube 4 opposes the spring property of the operating plate 5, and the conductive portion 2a and the operating plate 5 are held at a separated position. are doing. Therefore, when the combustion cylinder 4 is removed for maintenance of an oil combustor or the like, the operating plate 5 comes into contact with the conductive portion 2a and is grounded.
[0012]
Reference numeral 7 denotes an oil tank provided below the wick adjuster 6. The lower end of the wick 1 is immersed in the fuel in the oil tank 7 to suck up the fuel. Reference numeral 8 denotes a wick vertical shaft driven by a wick operating mechanism (not shown) provided outside such as a wick adjuster 6 and an oil tank 7, and 8a denotes a wick vertical lever for transmitting the operation of the wick vertical shaft 8 to the combustion wick 2. It is. An electrode bracket 9 is provided on the outer peripheral edge of the core adjuster 6 and holds the discharge electrode 2 and the counter electrode 3 via the insulator 2b. is there.
[0013]
【The invention's effect】
The present invention has the above-described configuration and operation. When the combustion tube 4 is removed, the operating plate 5 moves and contacts the conductive portion 2a of the discharge electrode 2 to be grounded. -If the body such as a hand or a finger touches 3, even if the switch is inadvertently turned “ON”, no shock is given to the body and the user does not feel uneasy.
[Brief description of the drawings]
FIG. 1 is a sectional view of a main part showing an embodiment of the product of the present invention, showing a state in which a combustion cylinder is mounted.
FIG. 2 is a cross-sectional view of a main part showing a state where the combustion tube is not mounted.
FIG. 3 is a plan view of a discharge / counter electrode unit integrated with an operation plate.
FIG. 4 is a sectional view of a main part of an oil combustor to which the present invention is attached.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 combustion core 2 discharge electrode 2 a conductive part 3 counter electrode 4 combustion cylinder 5 operating plate

Claims (1)

In a petroleum combustor in which the discharge electrode 2 and the counter electrode 3 are viewed from the combustion wick 1 and ignited, and burned in the combustion tube 4, the conductive portion 2 a of the discharge electrode 2 responds to the attachment and detachment of the combustion tube 4. An electric shock prevention structure for a discharge-type igniter in which an operating plate 5 to be brought into contact with and separated from the main body of the combustor is provided, and when the combustion tube 4 is removed, the operating plate 5 comes into contact with the conductive portion 2a of the discharge electrode 2 to be grounded.

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