JPS6350600Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ignition device for a gas burner having a plurality of flame ports.

Conventionally, this kind of ignition device is known, for example, from Japanese Utility Model Publication No. 52-37330, in which a holder supporting a discharge electrode is fixed to the machine frame with screws, etc., and a counter electrode facing the holder is integrally provided with a gas burner. However, since the discharge electrode and the counter electrode are provided separately, the distance between the two electrodes may vary due to assembly errors, and therefore the distance between the two electrodes must be adjusted after assembly. However, it has drawbacks such as being time-consuming and time-consuming to assemble.

The present invention solves such drawbacks, and includes an igniter 1 of a type that causes spark discharge between a discharge electrode 2 and a counter electrode 3, and a gas burner 7 having a plurality of flame ports 6 divided by a separator 4. In the case where the holder 5 of the discharge electrode 2 is
A counter electrode 3 and a separator 4 are integrally formed from a metal plate, and the counter electrode 3 projects above the flame port 6.

The present invention will be explained with reference to the drawings.

In the illustrated embodiment, a metal plate is bent to form a holder 5 having a horizontal support part 5a to which a discharge electrode 2 is attached, and a separator 4 falling from one side of the holder 5. The counter electrode 3 to be provided is integrally formed, and the first
As shown in Figures 3 to 3, a separator 4 is fixedly supported on the burner portion 7a of the gas burner 7 to divide the flame port 6, and a counter electrode 3 is protruded onto the flame port 6 closest to the gas supply port 7b of the gas burner 7. I let it happen.

As shown in FIGS. 1 and 2, a holder support leg 5b is provided in a downward position on one side of the holder 5 and is connected to the mixing pipe portion 7c of the gas burner 7, thereby causing the counter electrode 3 and separator 4 to be exposed to the flame. The opening 6 can be placed in a predetermined position more reliably, and the horizontal support portion 5a of the holder 5 can be stably supported. Further, the holder 5 may be provided with a mounting portion 5c for arranging the thermocouple 8 at a predetermined position of the flame port 6.

Since the counter electrode 3 is positioned so as to protrude above the flame nozzle 6, the two electrodes 2 and 3 can be opposed to each other with the flame nozzle 6 sandwiched between them as shown in the third figure, so that the gap between the two electrodes 2 and 3 is reduced. When discharged, sparks are produced on the flame nozzle 6, which facilitates and ensures the ignition of the gas ejected from the flame nozzle 6.The holder 5, the counter electrode 3, and the separator 4 are integrally formed with a metal plate. This simplifies the manufacturing and assembly process, and allows the discharge electrode 2 to be easily attached to a predetermined position on the holder 5.

Note that the discharge electrode 2 and thermocouple 8 are attached to the holder 5 by attaching them to the horizontal support part 5 in the illustrated example.
Although shown is a device that is fixed to through holes 5d and 5e provided in the mounting portion 5c through clips 9a and 9b, it goes without saying that this is not limited to such a device.

Symbol 10 in the drawing indicates a shielding piece, and shielding piece 1
0 shields a portion of the flame opening 6 to ensure that the gas flame hits the head of the thermocouple 8, and also prevents the mounting portion of the thermocouple 8 from being heated.

In this way, according to the present invention, the holder 5 of the discharge electrode 2, the counter electrode 3, and the separator 4 are integrally formed with a metal plate, and the counter electrode 3 is protruded into the flame nozzle 6. The relative positions of the counter electrode 3 and the flame nozzle 6 are reliably determined, and the discharge between the two electrodes 2 and 3 generates a discharge spark on the flame nozzle 6, making it easy and reliable to ignite the gas. , the counter electrode 3, the separator 4, and the holder 5 are integrally formed of a metal plate, which simplifies manufacturing and assembly and can be obtained at low cost.Also, the discharge electrode 2 can be easily and reliably placed in a predetermined position of the holder 5. It has the advantage of being easy to install.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention. Fig. 1 is an exploded perspective view of the ignition device, Fig. 2 is a perspective view of the holder attached to the gas burner, and Fig. 3 is the exploded perspective view of the ignition device.
FIG. 1... Ignition device, 2... Discharge electrode, 3... Counter electrode,
4...Separator, 5...Holder, 6...flame mouth, 7
...Gas burner.

Claims (1)

[Scope of utility model registration request] In a type in which an ignition device 1 of a type that causes spark discharge between a discharge electrode 2 and a counter electrode 3 is placed facing a gas burner 7 having a plurality of flame ports 6 divided by a separator 4, the discharge electrode This ignition device for a gas burner is constructed by integrally forming a holder 5, a counter electrode 3, and a separator 4 of No. 2 with a metal plate, and protruding the counter electrode 3 above a flame nozzle 6.