CN2147440Y - Automatic gas burning stove - Google Patents

Abstract

The utility model relates to an automatic gas burning stove, which can automatically open fuel gas source, ignite, and close the fuel gas source for extinguishing according to predetermined time (without a man). The utility model is realized by adding an automatic program control circuit, an optical control electronic automatic ignition circuit and an electromagnetic gas valve in the stove shell of the existing energy saving gas burning stove, wherein, the automatic program control circuit generates two programs of opening and closing. The utility model realizes the automatic open gas for igniting and the closing fuel gas for extinguishing according to the predetermined time and the predetermined cooking items through a relay controls the gas supply (or close gas supply) of the electromagnetic gas valve and the ignition (or stopping igniting) of the optical control electronic automatic ignition circuit.

Description

Automatic gas burning stove

This automatic gas furnace is that a kind of function is more complete, and performance is better, uses safer stove and accessory.It is more superior than existing gas furnace, can extensively replace the multiple gas furnace of present use, is the automation gas furnace in kitchen of new generation that progressively people is freed from numerous and diverse housework.

This automatic gas furnace, be on the basis of existing energy-saving fuel gas, increased that the integrated circuit of, power consumptive province long by reliable operation, life-span and automatic control, light-controlled electronic that the high-quality electronic devices and components are formed are lighted a fire automatically newly and device such as electromagnetic gas valve, taken the lead on gas furnace, having realized: 1. on schedule (unmanned) automatically breakdown fuel gas source also light a fire.2. on schedule (unmanned) automatic self-closing gas source is also flame-out.3. when in fiery process, running into accident extinguishing, can automatically stove fire be rekindled, guarantee safe in utilization with anti-gas-leak.4. in fiery process, running into and stopping the supple of gas or steam flame-out or break down can not light a fire the time at ignition system, can the automatic self-closing gas source.Exactly instruction time, remove the sorrow of mistaking from, very convenient to the cooking project that intersexuality sometimes requires.6. be provided with and touch singly-bound manual priority function, one by realizing breakdown fuel gas source and igniting, perhaps closes fuel gas source and flame-out, make stove and accessory more economize gas, more practical, safety and reliability, thoroughly eliminated existing gas furnace igniting inconvenience, needed the people to wait for, accident extinguishing gas leakage defective such as easily cause danger.

The purpose of this automatic gas furnace design, be for two-earners family that Modern Family particularly is pressed for time provide a kind of nobody the time can finish the automation gas furnace of predetermined cooking project (steamed rice, burning, steaming dish, fricassee etc.) on schedule automatically, solving existing gas furnace can not be from problems such as the people and the inconvenient accident extinguishing gas leakage of lighting a fire, and makes stove and accessory economize gas, convenience, safety, reliable more.

Below in conjunction with accompanying drawing the design is done a description.

Fig. 1 is the operation principle block diagram of automatic gas furnace.Fig. 2 is an automatic gas furnace automatic program control circuit diagram.Fig. 3 is automatic gas furnace light-controlled electronic auto-ignition circuit figure.Fig. 4 is an automatic gas furnace guidance panel schematic layout pattern.Fig. 5 is the automatic gas furnace structural representation.

The operation principle of stove and accessory mechanical part and existing energy-saving fuel gas are basic identical. Structural main difference is: the design is provided with an electromagnetic gas valve (see figure 5) at the gas-distribution pipe of existing energy-saving fuel gas.

Shown in Figure 2, be the automatic program control circuit of automatic gas furnace. B1 12V winding. D1～4, C4, C5; IC4; C6; D5; the D6 composition voltage-stabilized power supply circuit that is linked in sequence; D7 and 9～12V battery pack connect to form the data protection power circuit; C1; C2; X; R1; R2; R3; IC2 is linked in sequence and forms the high accuracy time base circuit; K1a; K1b; AN1; 32 of AN2 and IC1; 34; 35; 38; pin connects to form function and selects and the program composition circuit; large-scale data is processed integrated circuit IC1 and R4; R5; R7; R8R9; C3; D9; 1 pin of D10 and IC2 connects to form high precision timing program operation circuit; and the multi-functional data display screen that connects by relevant pin with IC1 shows various data; IC3; R6; Q1; D8; J1 connects to form the Digital Program Control circuit; AN3; 14 pin of R10 and IC3 connect to form manual control circuit, and one group of contact J1-1 of J1 and DF connect to form air valve and open; close control circuit.

The main working process of circuit is as follows:

(1) K1 puts 1 (the position during school) and presses AN1 during the school, and the hourage of clock increases 1 speed with per second to be transferred soon, and fractional part is constant, presses AN2, and the mark of clock increases 1 speed with per second to be transferred soon, and hour part is constant.

(2) open program surely and K1 is set puts 2 (open surely position), press AN1, AN2 respectively and make the time shown in the display screen for deciding ETAD expected time of arrival and departure.

(3) decide the pass program and K1 is set puts 3 (deciding off-position), press AN1, AN2 respectively and make the time shown in the display screen for closing the time surely, decide ETAD expected time of arrival and departure evening but close time ratio surely.

The process of its control apparatus is: decide ETAD expected time of arrival and departure when clock runs to, IC1 26 pin current potentials are uprised by low, a trigger impulse is provided after R5, C3 shaping, for IC3 14 pin, IC3 counts once, and 2 pin " 1 " end uprises level, and pulse one tunnel is sent into IC1 27 pin through R8, make 26 pin presets, another road makes the Q1 conducting through R6, and J1 adhesive J1-1 connects, and DF breakdown air valve air feed J1-2 makes light-operated auto-ignition circuit loop conducting work igniting (referring to Fig. 3).Decide the pass time when clock runs to, IC1 26 pin current potentials uprise again, IC3 3 pin " 0 " end output high level." 1 " end becomes low level, and the high level of " 0 " end is sent into IC1 29 pin through R7, makes IC1 26 pin presets, " 1 " end low voltage level is ended Q1, and J1 discharges, and J1-1 disconnects, air valve resets and blocks source of the gas, and J1-2 closes the electric power loop of light-operated auto-ignition circuit.

AN3 is a manual ignition, closes fiery operating key, has priority.

Shown in Figure 3, be the light-controlled electronic auto-ignition circuit of automatic gas furnace.B1 3V winding and D11～14 connect to form rectification power circuit; Q5, R12, B2, D15 are linked in sequence and form the igniting booster circuit; R13, R14, C7, D16 SCR, C8, the B3 composition high-pressure generating circuit that is linked in sequence; RG, Q3, Q4, Rw, Q2, R11, Dw, Ct are linked in sequence and form flame detection and holding circuit; ignition coil L5 one end is connected with body of heater; the other end connects to form ignition circuit with the igniting pin, and J1-2 is another group control contact of Fig. 2 J1.

The course of work of circuit is:

When J1-2 is closed, Q3, Q4 conducting, the booster circuit work that Q5, B2, R12 form, boosting is charged to one regularly to C7, C8 after the D15 rectification, C8 discharges through L4 BSCR, produce high-tension ignition needle-discharging fire on L5, Q2 conducting is simultaneously charged to Ct after the R11 current limliting, after combustion gas is lighted, RG detects flame, resistance descends, and Q2, Q3, Q4 end, and Ct is owing to the electric leakage charging of self is released.

When accident extinguishing, the unglazed photograph of RG, resistance rises; Q2, Q3, Q4 conducting repeat above-mentioned ignition process, when no combustion gas or firing circuit break down can not light a fire the time, when certain hour Ct charges to the Dw threshold values; Dw punctures; send into a pulse to IC3 14 pin, IC3 2 pin become low level, and Q1 ends; J1 discharges; air valve is closed and is realized stopping the supple of gas or steam protection, and Q2, Q3, Q4 are cut off simultaneously, prevents that the firing circuit fault from enlarging.

Fig. 3 with the annexation of Fig. 2 is: among Fig. 3+among 12V and Fig. 2+12V links to each other; The other end of Dw among Fig. 3 links to each other with IC3 14 pin among Fig. 2; Earth terminal ⊥ among Fig. 3 links to each other with earth terminal ⊥ among Fig. 2; 3V～two ends among Fig. 3 link to each other with 3V～two ends of B1 among Fig. 2.

Fig. 4 is an automatic gas furnace guidance panel schematic layout pattern.Multifunctional digital screen among the figure shown in (1): 18:88 is among Fig. 2 ^AM _PM: 18:88; (2) are depicted as the flame adjusting knob of automatic gas furnace among the figure, in order to the control flame size; Functional select switch K1 among the figure shown in (3) is the K1aK1b among Fig. 2, and timing key AN1, the accent shown in (5) among the figure shown in (4) divide the manual operating key AN3 shown in key AN2, (6), are respectively AN1, AN2, AN3 among Fig. 2.

Fig. 5 is the structural representation of automatic gas furnace.(1) regulates knob for flame among the figure, (2) be guidance panel, (3) be the discharge igniting pin, (4) be duration and degree of heating (combustion gas), (5) are the pot frame, and (6) are the electronic component plate, (7) be high-voltage line (linking to each other) with the discharge igniting pin, (8) be gas-distribution pipe (air supply pipe), (9) are the duration and degree of heating support, and (10) are for being contained in the electromagnetic gas valve on the gas-distribution pipe.

The best mode of production that realizes the design of this automatic gas furnace is: on the gas-distribution pipe of existing energy-saving gas stove, set up an electromagnetic gas valve (referring to Fig. 5), and on guidance panel, set up required mounting hole site such as operated key shown in Figure 4, and will upward get final product by the automatic program control and the assembling of light-controlled electronic automatic ignition device of radio factory's customization, need not increase new production equipment.

Claims (3)

1, a kind of automatic gas furnace is regulated knob, discharge igniting pin, duration and degree of heating by flame, the pot frame, electronic component plate, gas-distribution pipe (air supply pipe), compositions such as duration and degree of heating support, it is characterized in that: it has the automatic program control circuit, light-controlled electronic firing circuit and electromagnetic gas valve device.

2; automatic gas furnace according to claim 1; it is characterized in that the automatic program control circuit is by B1 12V winding; D1～4; C4; C5; IC4; C6; D5; the D6 composition voltage-stabilized power supply circuit that is linked in sequence; D7 and 9～12V battery pack connect to form the data protection power circuit; C1; C2; X; R1; R2; R3; IC2 is linked in sequence and forms the high accuracy time base circuit; K1a; K1b; AN1; AN2; with 32 of IC1; 34; 35; 38; pin connects to form function and selects and the program composition circuit; large-scale data is handled IC 1 and R4R5; R7; R8; R9; C3; D9; 1 pin of D10 and IC2 connects to form high precision timing program operation circuit; and the multi-functional data display screen that connects by relevant pin with IC1 shows various data; IC3; R6; Q1; D8; J1 connects to form the digital process control circuit; AN3; 14 pin of R10 and IC3 connect to form manual control circuit, and the one group of contact J1-1 of J1 and DF connect to form air valve and open; close control circuit.

3; automatic gas furnace according to claim 1; it is characterized in that the automatic ignition furnace circuit of light-controlled electronic connects to form rectification power circuit by B1 3V winding and D11～14; Q5; R12; B2; D15 is linked in sequence and forms the igniting booster circuit; R13; R14; C7; D16; SCR; C8; the B3 composition high-pressure generating circuit that is linked in sequence; RG; Q3; Q4; Rw; Q2; R11; Dw; Ct is linked in sequence and forms flame detection and holding circuit; ignition coil L5 one end is connected with body of heater; the other end connects to form ignition circuit with the igniting pin, and J1-2 is another group control contact of J1.

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