JPS6350601Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ignition device for a gas burner having a flame port.

Conventionally, as this type of ignition device, a device in which a holder supporting a discharge electrode is fixed to the machine frame by tightening with screws, etc., and a counter electrode facing the holder is integrally provided on a gas burner is known, for example, from Japanese Utility Model Publication No. 52-37330. It will be done.

However, since the discharge electrode and the counter electrode are provided separately, the distance between the two electrodes varies due to assembly errors, and therefore it is necessary to adjust the distance between the two electrodes after assembly. , there are disadvantages such as time-consuming assembly.

The purpose of the present invention is to obtain an ignition device that does not have such inconveniences, and is an ignition device 1 of a type that causes a spark discharge between a discharge electrode 2 and a counter electrode 3.
In a type that faces a gas burner 6 having a flame port 5, the holder 4 of the discharge electrode 2 and the counter electrode 3 are integrally formed with a metal plate, and the counter electrode 3
The part is inserted and supported in the insertion hole 7 provided in the flame port 5 part.

In the illustrated embodiment, a metal plate is bent to form a holder 4 having a horizontal support portion 4a to which the discharge electrode 2 is attached, and a vertical portion 4b falling from one side of the holder 4. In the embodiment shown in FIGS. 1 to 4, the vertical counter electrode 3 is integrally formed, and the gas burner 6 is provided with a large number of flame ports 5 along the longitudinal direction. is used as the insertion hole 7 to insert and support the lower half of the counter electrode 3, and the vertical portion 4b is superimposed on the side of the mixing pipe portion 6b of the gas burner 6 for spot welding or other They were tied together by means of means.

For example, if the lower half of the counter electrode 3 has one row of flame ports 5 as shown in FIGS. 1 to 4, it is formed in a U-shape with the side facing the discharge electrode 2 open. Thus, this is used as the insertion hole 7.
The discharge electrode 2 and counter electrode 3 are installed so as to face each other across the flow of fuel gas discharged from the flame port 5.

However, in the case where the gas burner 6 is provided with two rows of flame ports 5 on both sides of the separator 8 as shown in FIGS. Insert the flame port 5 into the insertion hole 7
If so, both electrodes 2 and 3 can be made to face each other while sandwiching the flow of fuel gas from the other flame port 5,
Furthermore, in the separator 8 shown in FIG. 6 in which an insertion hole 7 can be formed, simply by inserting the counter electrode 3 into the insertion hole 7, the flow of fuel gas from the burner port 5 is sandwiched between both electrodes. 2 and 3 can be made to face each other, and as shown in FIG. If this is used as the insertion hole 7 and the counter electrode 3 is inserted and supported, the sixth
As shown in the figure, both electrodes 2 and 3 can be opposed to each other with the flow of fuel gas from the flame port 5 in between.

Note that the discharge electrode 2 is attached to the holder 4 by using a through hole 4a provided in the horizontal support part 4a in the case shown in the figure.
-1 is shown in which it is fixed via a clip 9, but it goes without saying that this fixing is not limited to such means.

In this way, according to the present invention, the holder 4 of the discharge electrode 2 and the counter electrode 3 are formed integrally with a metal plate, and the counter electrode 3 is inserted into the insertion hole 7 provided in the flame opening 5. Since the holder 4 and the counter electrode 3 are mounted and supported, the relative positions of the discharge electrode 2, the counter electrode 3, and the flame nozzle 5 are reliably determined to ensure good ignition, and the holder 4 and the counter electrode 3 are If they are integrally formed from a metal plate, the number of parts can be reduced, the manufacturing and assembly can be simplified, and it can be obtained at low cost.

[Brief explanation of the drawing]

The drawings show one example of the implementation of the present invention; Fig. 1 is a perspective view, Fig. 2 is an exploded perspective view of the ignition device, and Fig. 3 is an exploded perspective view of the ignition device.
The figure is a cross-sectional view of the line, and Figure 4 is its -
The cross-sectional views of FIGS. 5 to 7 are views showing modifications of FIG. 3. 1...Ignition device, 2...Discharge electrode, 3...Counter electrode,
4...Holder, 5...flame mouth, 6...gas burner, 7...
Insertion hole.

Claims (1)

[Scope of utility model registration request] In a type of ignition device 1 that causes a spark discharge between a discharge pole 2 and a counter electrode 3, which faces a gas burner 6 having a flame port 5, the discharge pole 2
This ignition device for a gas burner is constructed by integrally forming a holder 4 and a counter electrode 3 with a metal plate, and inserting and supporting the counter electrode 3 into an insertion hole 7 provided in a flame nozzle 5.