CN2435660Y - Gas range capable of automatic flaming out when rice is cooked - Google Patents

Abstract

The utility model provides a gas range capable of automatic flaming out when rice is cooked, which is composed of a range body, a range frame, a furnace end, a fire power regulating valve and a gas channel. The utility model is characterized in that a temperature sensitive sensor is arranged in the furnace end, a pulse igniting needle and a flame detecting needle are arranged on the side of the furnace end, an electromagnetic valve is arranged on a port of the gas channel, and all components are controlled on an electronic box; furthermore, the utility model is also provided with a water taking box. The gas range can wholesomely and cleanly cook the rice without watching, and can automatically flame out when rice is cooked to close a gas source. The temperature control is suitable, and the cooked rice is not undercook and can not scorch to generate rice crust. A safeguard protection device is provided, when accident abnormal flameout and baking pot are generated, the gas source can be closed in one second. Compared with an electric rice cooker, the cooking time is shortened for a half, and the utility model is economical and practical.

Description

Meal is ripe in flame-out gas-cooker

The utility model belongs to kitchen range, and specifically a kind of meal is ripe in flame-out gas-cooker.

In daily life, must someone keep an eye on when cooking, can not leave, otherwise cause contingency easily with the normal conventional gas-cooker.The quality of meal is grasped the duration and degree of heating fully by rule of thumb, does not note slightly, or burns crispy rice, or become half-cooked rice, and the meal that perhaps cooks is not ideal enough.

The purpose of this utility model provides the ripe certainly flame-out gas-cooker of a kind of meal, need not the special messenger when it is cooked and keeps an eye on, and the ripe back of meal auto extinguishing is closed source of the gas, and has reliable safeguard protection performance.

In order to achieve the above object, the technical measures that the utility model is taked are: this meal is ripe to comprise that from flame-out gas-cooker stove, kitchen range frame, burner, air flue, flame regulating valve, pulse firing pin, flame detect pin and Electronic Control Box, is characterized in that it also comprises:

-one cylindrical temp-sensitive sensor, be installed in burner hearth central authorities, leave air-gap between circumferential periphery and the burner inwall, the upper surface flushes with the bottom of a pan, the lower surface connects by connecting rod and starting bar one end are movable, and the starting bar other end is equipped with adjusts the compensation pouring weight, leans on pouring weight one side to establish an electric microswitch S and starting bar machinery and bumps and connect, the c of S, d end is held corresponding electrical connection with c, the d of described control box, and a of control box, b end and described flame detect a of pin, the corresponding electrical connection of b end of pulse firing pin;

-one magnetic valve Y is installed in the liquid passage inlet passage, and the gas channels other end communicates with the bocca of described burner, the described flame regulating valve of middle installation, and the e of magnetic valve Y, f, g end are held corresponding electrical connection with e, f, the g of described control box;

-individual water spilage tray is installed in the side of stove, connects the water receiving disc connection of gutter channel and burner cylindrical with the gutter channel in the stove.

The utility model has the advantages that: guard without the special messenger when 1, cooking, the energy auto extinguishing was closed source of the gas after meal was ripe.2, the meal of making is soft, fragrant and sweet good to eat, can not go out half-cooked rice, also can not burn crispy rice.3, be provided with reliable safety guard,, all can within a second, close source of the gas immediately when the unexpected undesired pot that stops working, dryouies occurring.4, economical and practical, clean hygiene is compared with electric cooker, and the time of cooking can shorten half.

Fig. 1 is the structural representation of this gas-cooker.

Fig. 2 is the vertical view of burner among Fig. 1.

Fig. 3 is the internal circuit diagram of Electronic Control Box among Fig. 1.

Below in conjunction with accompanying drawing the utility model is described in further detail.

In Fig. 1, the 4th, stove, the 7th, the kitchen range frame, the 10th, pot for cooking rice requires the bottom of a pan smooth bright and clean, preferably uses pressure cooker or aluminium pan; The 8th, stove top, the 5th, burner (is circular, referring to Fig. 2,22 is fire jetting holes among the figure, the 23rd, and the air-gap between sensor and the furnace wall), communicate with air flue 20, flame regulating valve 1 is arranged in the air flue, it is a cock-type switch, is used to control air inflow, the 21st, and air door, be used to control intake, make fuel gas buring abundant, magnetic valve y is installed in the liquid passage inlet passage, be used to open and close the valve source of the gas, it has two windings, g, f are for starting winding, and f, e are connected with the respective terminal of Electronic Control Box respectively for keeping winding; Burner nearby is provided with pulse firing pin 15 and flame and detects pin 13, a, the b point is connected with the respective terminal of electric-controlled box, the igniting pin is a high-pressure side, burner connects commonly and holds, leave air-gap between needle point and burner, the discharge generation spark is lighted combustion gas over the ground when high voltage pulse is added on the needle point, flame detects pin and stretches on burner, when fuel gas buring goes out flame, can produce a large amount of flame ions, will form a biasing resistor to ground by flame, if no flame from needle point, needle point resistance over the ground is just infinitely great, utilizes these characteristics to protect automatically the control realization of magnetic valve is flame-out by electric-controlled box; Burner central authorities are provided with a cylindrical temp-sensitive sensor ST, it is to adorn a spring 9 that pressure is very little in metallic cylinder, upper end cover flushes with the bottom surface of pressure cooker 10, the step of inner face projection is a soft iron 11, the step of lower end inner face projection is a permanent magnet 12, the affixed connecting rod 19 in permanent magnet seat lower surface, the connecting rod other end connects with an end of starting bar 18 is movable, starting bar is solid on stove by drift bolt 17, but the aperture of starting bar is bigger than drift bolt diameter, can be movable, the other end is equipped with the balancing weight 16 of regulating temperature-compensating, and it is actually a screw that is contained on the starting bar keyway, can move forward and backward adjustment along keyway, installation generally needn't be adjusted after setting up; On starting bar next door by balancing weight one side, a micro power switch S is housed, its c, d point is connected with c, the d point respective electrical of electric-controlled box, is used to turn on and off the power supply of electric-controlled box, bumps contact by the starting bar mechanical action and realizes open and close; The mechanical action of starting bar is by making fulcrum with drift bolt 17, starting bar is made the permanent magnet magnetic force of lever, spring force, connecting rod gravity cooperates to be finished, when clicking starting bar artificially, starting bar is pushed microswitch and is connected the electric-controlled box power supply, in start-up circuit work, permanent magnet 12 is got on and soft iron 11 adhesives by connecting rod 19 tops, and keep this state, the magnetic parameter of permanent magnet is designed to begin when temperature to 103 is spent loss of excitation, when sensor temperature rise to 103 is spent, permanent magnet falls under rapid under spring pressure and the effect of connecting rod gravity, and S resets, and cuts off the power supply of electric-controlled box, source of the gas, auto extinguishing are closed in the magnetic valve outage.

In addition, the side of stove also is equipped with a water spilage tray 2, when pot for cooking rice has water to overflow to splash into water receiving disc 6, can flow into water spilage trays 2 along tank 3 and be collected, and avoids polluting.

Fig. 3 is the internal circuit diagram of Electronic Control Box among Fig. 1.This is a common electronic pulse ignition, the flame-out circuit diagram of protection automatically; model is JSYZ; among the figure; dotted line institute frame 24 is for producing the pulse oscillator of high-tension ignition; the 25th, flame detects oscillator, and Y is the winding of electromagnetic valve coil, and LM339 is the four high guaily unit integrated package; S is that power switch is the microswitch S that is controlled by starting bar among Fig. 1, below its course of work of summary:

1, high-voltage pulse igniting: after S is activated the lever operation closure, the voltage V10 of amplifier A end of oppisite phase 10 pin among the LM339 presses index law and descends, compare with the voltage of its in-phase end 11 pin, when V10＜V11, output 13 pin current potentials are uprised by low, start winding g, f gets electric, and simultaneously, pulse oscillator 23 is subjected to the control of amplifier E, it is high level that the end of oppisite phase 4 of amplifier E begins, after start-up course finishes, because the C10 charging makes V4 decline back compare with in-phase end 5, when V4＜V5, output 2 pin are uprised by low, and 8.55 seconds by a definite date, igniting finished, like this, it is 0.44+8.55 ≈ 9 seconds that amplifier E is in the low level time, is ignition process during this, comprises magnetic valve adhesive air feed, high-tension ignition, keep winding to get the electric air feed of keeping.Only its output 1 keeps low level to amplifier B when successfully making 7 pin be negative level lighting a fire, and keeps electric current among winding f, the e to keep, and continuously to the combustion chamber air feed, if catch fire failure or extinguish, 1 pin is exported high level immediately and closed source of the gas, guarantees safety.

2, flame-out protection automatically: after connecting power supply; it is starting of oscillation work that flame detects oscillator; when fuel gas buring produces flame; detect pin and measure flame ion, detect pin by flame over the ground biasing resistor of equivalence be added in amplifier B in-phase end 7 pin over the ground between, make voltage on 7 pin be lower than the voltage on 6 pin; as long as there is flame to exist; output 1 pin of amplifier B is a low level just, thereby guarantees the T1 conducting, keeps magnetic valve Y adhesive.When accident extinguishing occurring, flame has not existed, and 7 pin of amplifier B are equivalent to open circuit over the ground; voltage on 7 pin is higher than the voltage on 6 pin, makes the upset of amplifier B output 1 pin be high level, and T1 ends; magnetic valve Y closes the cut-out gas circuit, thereby realizes flame-out protection automatically.

Use and operation: the pressure cooker that naughty good rice is installed water lies on the kitchen range frame, and flame regulating valve is reached the experience correct position, and pressing starting handle is to light a fire automatically to cook, and after this just need not manage.

Claims (1)

1, a kind of meal is ripe in flame-out gas-cooker, and it comprises that stove, kitchen range frame, burner, air flue, flame regulating valve, pulse firing pin, flame detect pin and Electronic Control Box, is characterized in that it also comprises:

-one cylindrical temp-sensitive sensor, be installed in burner hearth central authorities, leave air-gap between circumferential periphery and the burner inwall, the upper surface flushes with the bottom of a pan, the lower surface connects by connecting rod and starting bar one end are movable, and the starting bar other end is equipped with adjusts the compensation pouring weight, leans on pouring weight one side to establish an electric microswitch S and starting bar machinery and bumps and connect, the c of S, d end is held corresponding electrical connection with c, the d of described control box, and a of control box, b end and described flame detect a of pin, the corresponding electrical connection of b end of pulse firing pin;

-one magnetic valve Y is installed in the liquid passage inlet passage, and the gas channels other end communicates with the bocca of described burner, the described flame regulating valve of middle installation, and the e of magnetic valve Y, f, g end are held corresponding electrical connection with e, f, the g of described control box;

-one water spilage tray is installed in the side of stove, connects the water receiving disc connection of gutter channel and burner cylindrical with the gutter channel in the stove.

Images