CN2076206U - Continuous electric pulse igniter for gas cooker with double burner - Google Patents

Abstract

The utility model relates to an ignition device for gas cookers, and is especially suitable for a gas cooker with double burner. The gas cooker with double burner only uses the ignition device, and realizes any one of the burners of the double burner to singly and continuously ignite by electrical pulse. The ignition device uses a dry cell of 1.5 volts as a power supply, comprising a pulse oscillatory circuit, a rectifying circuit and an electric discharge frequency control circuit. As the high voltage electric discharge control circuit is composed of a high voltage transformer which is connected by two primary coils in parallel and two microswitches which are respectively provided with the normally opened contacts and the normally closed contacts, when the different microswitches (ignition switches) are pressed, the different discharging electrodes singly generate continuous discharge sparking to ignite the gas of the different burners.

Description

Continuous electric pulse igniter for gas cooker with double burner

The utility model is a kind of igniter of gas furnace, is mainly used in twin furnace head gas furnace.

The igniting of existing gas furnace, what more generally use at present is piezoelectric ceramics pulse igniter.This igniter whenever by an ignition switch, can only produce a branch of high tension spark.If it is inconsistent that combustion gas cooperates with spark, often can not once light combustion gas, thereby operation inconvenience, the igniting poor reliability.At home in the gas furnace of some manufacturer production, progressively adopted the continuous electric pulse igniter recently.The continuous electric pulse igniter of present domestic use, as " the efficent electronic igniter " of national patent application CN87204865U " permanent high pressure output continuous impulse ignition " and the introduction of " electronics newspaper " the 13rd phase in 1988 etc., all be only limited to the igniting of single burner.If a gas furnace has two or more burners, then need dispose two or more such igniters.Because this igniter increases with the increase of burner number, make stove and accessory ignition system complex structure, peripheral wiring trouble, and the cost that makes the double burner that adopts this igniter or the bull stove cost of counting stove and accessory than the same burner of device piezoelectric ceramic ignitor has more significantly and increases.

The purpose of this utility model provides one of improved igniter, just can realize the continuous separately electric pulse igniting of arbitrary burner in the twin furnace head gas furnace.

The purpose of this utility model is achieved in that on the basis of continuous electric pulse igniter as mentioned above, increasing a high-tension transformer and two respectively has one group often to open and the microswitch of normally-closed contact (do gauge tap and power switch with), by pressing different microswitches (this moment burnt gas switch and its open synchronously), control different high-tension transformers, produce continuous high electric field pulse spark, the combustion gas of lighting different burners.

The utility model has the advantages that only needs to increase a high-tension transformer and two microswitches on the basis of original continuous electric pulse igniter, form through appropriate wiring again, accomplishes dual-use.The structure and the peripheral wiring of twin furnace head stove and accessory ignition system can be simplified so significantly, and the cost that is used for twin furnace head gas furnace electric pulse ignitor can be reduced significantly.

Accompanying drawing 1 is an electrical schematic diagram of the present utility model.The components and parts of forming have: battery DC, LED, resistance R 1, R2, R3, R4, transistor BG1, diode BG2, bidirectional trigger diode BG3, controllable silicon SCR, capacitor C 1, C2, transformer B1, B2, B3, sparking electrode D1, D2, K switch 1, K2.

Circuit theory of constitution of the present utility model and working condition are as follows: this device is made power supply with 1.5 volts of dry cells, comprises pulse oscillation circuit, rectification circuit, discharge frequency control circuit and electrion control circuit.The electrion control circuit is by a controllable silicon SCR, and each is made up of high-tension transformer B2, the B3 of a capacitor C2 and two parallel connection of primary windings and two one group of microswitch K1, K2 that often opens with normally-closed contact.Emitter stage with triode BG1 after the fixed contact of two microswitches links to each other joins; Electrode with battery after the normally opened contact of two microswitches links to each other joins; The normally-closed contact of two microswitches joins with two transformer primary winding respectively.If only press K switch 1, power supply is switched on (B3 is elementary simultaneously is disconnected), by transistor BG1, and resistance R 2, the oscillating circuit starting of oscillation that the primary coil of transformer B1 is formed.By the pulse voltage of B1 secondary coil output, after diode BG2 rectification, the one tunnel makes capacitor C2 charging; Another road is through resistance R 3, capacitor C1, and bidirectional trigger diode BG3, the discharge frequency control circuit that resistance R 4 and controllable silicon SCR are formed charges to C1.When C1 voltage reached certain value, the BG3 conducting triggered the SCR conducting simultaneously, so be stored in electric energy on the C2 through the elementary discharge of high-tension transformer B2, secondary induction goes out high pressure, emits the high electric field pulse spark on sparking electrode D1 continuously, has lighted the combustion gas at D1 burner place separately.In like manner, if will light the combustion gas at D2 burner place, can realize as long as press K switch 2.The LED that is connected on the R1 is indicated as the work of igniter, and during igniting, light emitting diode will be glittering with the output of high electric field pulse.

Claims (2)

1, a kind of twin furnace head gas furnace continuous electric pulse igniter, comprise dc source, pulse oscillation circuit, rectification circuit, discharge frequency control circuit, it is characterized in that this device has an electrion control circuit, this circuit is by a controllable silicon SCR, and high-tension transformer B2, the B3 of capacitor C2 and two parallel connection of primary windings and two microswitch K1, K2 form.

2, electric pulse ignitor according to claim 1 is characterized in that the continuous back of fixed contact of microswitch and the emitter stage of triode BG1 join; Electrode with battery after the normally opened contact of two microswitches links to each other joins; The normally-closed contact of two microswitches joins with transformer primary winding respectively.