CN2201876Y

CN2201876Y - Timing automatic pressure-cooker

Info

Publication number: CN2201876Y
Application number: CN 94224042
Authority: CN
Inventors: 周茂森
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-01
Filing date: 1994-07-01
Publication date: 1995-06-28
Anticipated expiration: 2004-07-01

Abstract

The utility model relates to a timing automatic pressure cooker which is composed of a casing, an inner cooker, an electric hot tray, a power socket, a switch, an indicating lamp, a temperature-sensing magnetic-steel temperature limiter, a temperature-controlling time-delay timer, a starting timer, a circuit controlling system, etc. The inner cooker can be a common cooker and a variable type pressure cooker; the inner surface of the inner cooker is marked with water level and containing marks, the scale of time required by that temperature rises to each pressure boiling point and the scale of cooking time; after the food temperature rises to a boiling point, the temperature-controlling time-delay timer which has automatic control starts to delay time until the required duration to cut off the power. Thus, the utility model has timing starting, can automatically cook all food such as rice, porridge and vegetable, and has the advantages of labor saving, time saving, power saving, etc.

Description

Timing automatic pressure-cooker

The utility model belongs to a kind of timing automatic pressure-cooker.

At present, the pressure cooker of common use has of all kinds in daily life, for example patent 90216181.4 electronics plesichronous auto-electronic pressure cookers, patent 88207471.7 full automatic electric pressure cookers, patent 88204987.9 heat preserving types are adjustable, and automatic pressure pot etc. differs from one another, but can not use simultaneously with ordinary pan, therefore, use is very inconvenient.

The purpose of this utility model provides a kind of timing automatic pressure-cooker that ordinary pan and debugging pressure power pot use simultaneously that has.

The utility model is by shell, interior pot, electric hot tray, supply socket, switch, indicator lamp and circuit control system are formed, shell (14) is the straight barrel type double-decked insulation, supply socket (4) is equipped with in the bottom, start timer knob (11), switch (3), temperature control back off timer knob (12) and power supply indicator (1), insulation indicator lamp (2), burner on light (13), pot cover (18) is arranged at top, pot cover (18) cooperates with interior pot (15), interior pot (15) bottom is dome shape, contact with the electric hot tray that is round segment of a sphere shape (7), the outside turnup of top edge, inner surface have the water level containing mark and heat time heating time scale, interior pot (15) can be ordinary pan, also can be the adjustable pressure pot, flange links closely at pressure cooker (15) bead place, pot cover (18) bead has O-ring seal (17) standing groove and the recessed edge that links closely outward, rubber flame-arrester vent plug (19) and chip flame-arrester vent plug (22) are housed on the pot cover (18), valve seat (20) and can debug pressure limiting valve (21), electric hot tray (7) the inside is cast into tubular electrothermal element, electric hot tray is equipped with circuit control systems at different levels below (7), temperature control back off timer Th of a sensing magnet steel temperature limiter xW connection in control circuit, and thrermostatic bimetal-plate warmer R4, or the wire resistor silk about one 1200 Ω in parallel is as warm keeping element, the startup timer T that connects can control the zero-time of heating, timer can adopt Mainspring type or electrodynamic type, a compound overheating fuse RD in addition connects, R1, R2, R3 is the indicator lamp dropping resistor, respectively with burner on light L1, insulation indicator lamp L2, power supply indicator L3 series connection.

The utility model is compared with all kinds of electric pressure cooking saucepans of continuing to use, and both can work as pressure cooker and use, and also can work as ordinary pan and use, and has simple in structure, advantages such as manufacturing is esy to use, safe and reliable, sturdy and durable, economize on electricity.

Description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model circuit diagram.

Electric hot tray (7) rated power uses rated voltage to be 220V between 300W-1500W, the alternating current of 50HZ.When P=700W, electrothermal tube resistance R in the electric hot tray=69.14 Ω, circuit control systems at different levels are housed below the electric hot tray, sensing magnet steel temperature limiter in parallel in control circuit, its soft magnetism passes the electric hot tray center, by with the temperature of pot in the bottom of a pan contacts perception, when cooking bottom temperature is raised to 103 ℃ ± 2 ℃ of its soft magnetism curie points, soft magnetism temporarily loses magnetism, no longer attracted, under spring action, jump automatically and pull by Hard Magnetic, turn on the power switch by the interlock lever, thereby reach the purpose that automatic control is cooked.Temperature control back off timer also in parallel simultaneously, when interior pot temperature reaches 100 ℃ of boiling points, the action of thrermostatic bimetal-plate thermostat, swing arm leaves timer escapement 2mm valve clearance, and timer trigger meter is after required heat time heating time, movable pin falls, power switch is opened in the timer, and heating stops, and uses this device to control automatically, the different foods of boiling all can reach needed perdurabgility behind the boiling point, make food be heated to optimum degree and have a power failure.Thrermostatic bimetal-plate warmer simultaneously in parallel is controlled between 60 ℃-80 ℃ temperature, or the wire resistor silk about one 1200 Ω in parallel makes its power about 40W as warm keeping element.In control circuit, the startup timer of connecting is controlled the zero-time of heating, and timer has Mainspring type and electronic two kinds, can be in 24 hours arbitrary timing.The compound overheating fuse of connecting is in addition protected the safety of pot, and the selection rated function temperature is a fusing point.

Removing electric hot tray (7), supply socket (4), switch (3), indicator lamp (1), (2), (13) and knob (11), (12) and each electric elements, O-ring seal (17) etc. in the utility model all can buy, interior pot (15) generally is the pure aluminum plate one-off drawing moulding of 0.8-1.2mm with thickness, pressure cooker is made with aluminium alloy compression casting, electric hot tray (7) is cast with aluminum or aluminum alloy, shell body (14) adopts iron sheet or stainless steel to make, or adopts resistant to elevated temperatures high-strength engineering plastic to make.The relation of the weight G of valve seat gas port diameter d and pressure limiting valve and pot inner pressure P or be P=1.2G/d2, wherein d is a definite value, as long as adjust the weight of pressure limiting valve, just can adjust inner pot pressure P.After all parts are pressed Fig. 1 assembling, through debugging, just can plug in, power supply indicator (1) is bright, restart timer or set start-up time, press switch (3) again or turn temperature control back off timer knob (12) to the position of required time-delay, when boiling, insulation indicator lamp (2) is bright, is incubated again.

Claims

1, a kind of timing automatic pressure-cooker, by shell, interior pot, electric hot tray, supply socket, switch, indicator lamp and circuit control system are formed, it is characterized in that: shell (14) is the straight barrel type double-decked insulation, supply socket (4) is equipped with in the bottom, start timer knob (11), switch (3), temperature control back off timer knob (12) and power supply indicator (1), insulation indicator lamp (2), burner on light (13), pot cover (18) is arranged at top, pot cover (18) cooperates with interior pot (15), interior pot (15) bottom is dome shape, contact with the electric hot tray that is round segment of a sphere shape (7), the outside turnup of top edge, inner surface have the water level containing mark and heat time heating time scale, interior pot (15) can be ordinary pan, also can be the adjustable pressure pot, flange links closely at pressure cooker (15) bead place, pot cover (18) bead has O-ring seal (17) standing groove and the recessed edge that links closely outward, rubber flame-arrester vent plug (19) and chip flame-arrester vent plug (22) are housed on the pot cover (18), valve seat (20) and can debug pressure limiting valve (21), electric hot tray (7) the inside is cast into tubular electrothermal element, electric hot tray is equipped with circuit control systems at different levels below (7), sensing magnet steel temperature limiter temperature control back off timer Th in parallel in control circuit, and thrermostatic bimetal-plate warmer R4, or the wire resistor silk about one 1200 Ω in parallel is as warm keeping element, the startup timer T that connects can control the zero-time of heating, timer can adopt Mainspring type or electrodynamic type compound overheating fuse RD of series connection in addition, R1, R2, R3 is the indicator lamp dropping resistor, respectively with burner on light L1, insulation indicator lamp L2, power supply indicator L3 series connection.