CN2190245Y

CN2190245Y - Automatic lighter of gas burner

Info

Publication number: CN2190245Y
Application number: CN 94238680
Authority: CN
Inventors: 王俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-10
Filing date: 1994-05-10
Publication date: 1995-02-22
Anticipated expiration: 2004-05-10

Abstract

The utility model is that on the basis of the existing continuous electric pulse ignitor, a high voltage transformer is changed into two independent high voltage transformers B 2, B 2'; microswitches K 1, K 2 are changed into two duplex memory alloy temperature controlling switches (2, 2') and two duplex microswitches (3, 3) (when the duplex memory alloy temperature controlling switches are turned on under the normal temperature at times, the duplex microswitches are linked with the turn knobs of the coal gas). By switching on different microswitches, the respective high voltage transformers are controlled to generate continuous high voltage pulse electric spark; the gas of a range burner is ignited, and when the duplex memory alloy temperature controlling switches (2, 2') are separated, the power is cut off.

Description

Automatic lighter of gas burner

The utility model relates to a kind of igniter of gas furnace, is mainly used in the automatic igniting of house coal steam stove.

Utility model patent CN2076206U has introduced a kind of continuous electric pulse igniter (as shown in Figure 1).This igniter is made of pulse oscillation circuit, rectification circuit, discharge frequency control circuit and electrion control circuit.Wherein, the electrion control circuit is 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.The shortcoming of this utility model patent is: when gas burner extinguishes, do not have automatic resume combustion function; When a kitchen range in when igniting, the sparking electrode of another kitchen range can produce electric spark.

The purpose of the utility model is in order to overcome above-mentioned shortcoming, a kind of gas range automatic ignitor with the automatic resume combustion function of automatic igniting to be provided.

For achieving the above object, utility model is on the basis of above-mentioned continuous electric pulse igniter, change high-tension transformer into two independently high-tension transformer B2, B2 ', change microswitch K1, K2 into two duplex memorial alloy temperature detect switch (TDS)s (2,2 ') and two duplex microswitches (3,3 ') (duplex memorial alloy temperature detect switch (TDS) normal temperature is opened often, duplex microswitch and coal gas knob interlock).By connecting different microswitches, control high-tension transformer separately produces continuous high electric field pulse spark, and the combustion gas of lighting kitchen range separates when the combustion fire makes duplex memorial alloy temperature detect switch (TDS) (2 or 2 '), simultaneously dump.

Advantage of the present utility model only needs to make original high-tension transformer into independently two on the basis of original continuous electric pulse igniter, makes a gas range when igniting, and another can not produce spark; Make original microswitch K1, K2 into duplex memorial alloy temperature detect switch (TDS) and duplex microswitch, make to the utlity model has automatic resume combustion function, cut off the electricity supply automatically after electric fire finishes.

Now in conjunction with the accompanying drawings and embodiments the utility model is described as follows:

Fig. 1: be the schematic diagram of prior art;

Fig. 2: be the embodiment of the two kitchen range structures of the utility model;

Fig. 3: be the embodiment of the utility model list kitchen range structure.

The utility model is made of power supply, pulse oscillation circuit, rectification circuit, high pressure pulse discharge control circuit, the high pressure pulse discharge control circuit by a controllable silicon D2, capacitor C2, two independently high-tension transformer B2, B2 ' and two duplex memorial alloy temperature detect switch (TDS)s (2,2 ') and two duplex microswitches (3,3 ') are formed (as shown in Figure 1).Duplex memorial alloy temperature detect switch (TDS) (2,2 ') links to each other in twos with the fixed contact of duplex microswitch (3,3 '); One end of two duplex microswitches (3,3 ') armature contact links to each other with positive source after linking to each other, and the other end links to each other with capacitor C 2 after linking to each other; The emitter stage of one termination triode BG1 of the armature contact of two duplexs note alloy temperature control switches (2,2 '), the other end links to each other with corresponding transformer primary winding respectively.If only open duplex microswitch 2, electric current is switched on, the oscillating circuit starting of oscillation of being made up of the primary coil of transistor BG1, resistance R 2, transformer B1, pulse voltage by the output of B1 secondary coil, after diode D1 rectification, road direction C2 charging, charge to capacitor C 1 through resistance R 3 in another road.When C1 voltage during to certain value, the D2 conducting, and triggering D3 conducting, so the electric energy that is stored on the C2 is sensed secondary generation high pressure through high voltage variable device B2 is elementary, on sparking electrode, emit the high electric field pulse spark continuously, light kitchen range Z1 combustion gas (among Fig. 2: secondary A, the B of high-tension transformer B2, B2 ' end respectively with sparking electrode 4,4 ' A, B end link to each other).In like manner, if will light the Z2 kitchen range, as long as drive duplex microswitch 2 ' can realize greatly.The light emitting diode D that is connected on the current-limiting resistance R1 is the indicator lamp of combustion gas automatic ignitor, the utility model lighted a fire close the back power supply cut off automatically.

The combustion gas automatic ignitor that another embodiment (see figure 3) of the present utility model is single kitchen range structure, it is to omit a high-tension transformer, a duplex memorial alloy temperature detect switch (TDS) and a duplex microswitch to form on the basis of above-mentioned pair of kitchen range structure.

Claims

1, combustion gas automatic ignitor, comprise dc source, pulse oscillation circuit, rectification circuit, discharge frequency control circuit, it is characterized in that: this device has a high pressure pulse discharge control circuit, this circuit by a controllable silicon D2, capacitor C2, two independently high-tension transformer B2, B2 ', two duplex memorial alloy temperature detect switch (TDS)s (2,2 ') and two duplex microswitches (3,3 ') are formed.

2, the automatic electric firearm of combustion gas according to claim 1 is characterized in that: duplex memorial alloy temperature detect switch (TDS) (2,2 ') links to each other in twos with the fixed contact of duplex microswitch (3,3 '); One end of two duplex microswitches (3,3 ') armature contact links to each other with positive source after linking to each other, and the other end links to each other with capacitor C 2 after linking to each other; The emitter stage of one termination triode BG1 of the armature contact of two duplexs note alloy temperature control switches (2,2 '), the other end links to each other with corresponding transformer primary winding respectively.