CN2165745Y

CN2165745Y - Full-automatic electric cooking vessel

Info

Publication number: CN2165745Y
Application number: CN 93228688
Authority: CN
Inventors: 鲁俊生; 何靖禹; 田贵才; 秦艳友; 李冠成
Original assignee: Huanghai Electronic Tech Inst Tonghua City
Current assignee: Huanghai Electronic Tech Inst Tonghua City
Priority date: 1993-07-08
Filing date: 1993-07-08
Publication date: 1994-05-25
Anticipated expiration: 2003-07-08

Abstract

The utility model relates to a full-automatic electric rice cooker which utilizes the timing function of an electronic watch. The control end of the full-automatic electric rice cooker is connected with a regulation and control key for regulating and setting time, output timing signals directly trigger a controlled silicon, and the conduction of the controlled silicon causes a relay to be attracted, so that control function is realized. A normally open contact of the relay is linked with a magnetic switch of the full-automatic electric rice cooker. When the relay is attracted, the normally open contact is switched on, and the magnetic switch is switched on in advance. Commercial power is directly added to both ends of an electric heating tray through the magnetic switch to realize cooking function, and a light emitting diode is simultaneously used for indication. Besides the functions of automatic cooking and automatic heat insulation, the utility model is added with the functions of logic control, computer display and whole day time regulation.

Description

Full-automatic electric cooking vessel

The utility model relates to a kind of electric cooker, particularly relates to a kind of fully automatic rice cooker.

The electric cooker of domestic market sale at present all is general products, except that having automatic boiling, automatic heat preserving function, does not possess other functions.Along with consumers living's raising, people are more and more higher to the requirement of household appliances function, mainly are that requirement saves time, laborsaving, power saving, easy and simple to handle.Present product does not reach consumer's requirement.

The purpose of this utility model is exactly the fully automatic rice cooker that a kind of computer demonstration, full-time timing will be provided.

The purpose of this utility model is achieved in that

The sidepiece of pot body is equipped with control panel, be respectively equipped with LCDs, working station indicator, 4 function buttons, magnetic switch on the control panel, bottom at the pot body then is provided with battery, top and bottom fixing positive and negative electrode sheet respectively in the battery, have battery hole in the middle of the casket bucket that matches with battery, also be provided with supply socket at the bottom of the side of pot body; The civil power of sending into from supply socket CZ one tunnel is through overtemperature circuit breaker CD, C ₃, R ₂Current limliting after enter D ₃, D ₄, D ₅, D ₆The bridge rectifier rectification of forming is again through C ₂Filtering, D ₂Voltage stabilizing obtains the 12V DC power supply, and another road of the civil power of sending into from supply socket CZ is through overtemperature circuit breaker CD, light-emitting diode D ₇, current-limiting resistance R ₃Constitute power indicating circuit with electric hot tray RL; Three function key S of electronic watch ₁, S ₂, S ₃Meet regulation and control button AN respectively ₂, AN ₃, AN ₄An end, connect anode after their other end parallel connection, the electronic watch signal output part meets diode D ₁Positive pole, D ₁Negative pole connect controllable silicon SCR ₁The G utmost point, C ₁Positive pole and R ₁, R ₁Another termination AN ₁An end, AN ₁Another termination SCR ₁T ₂The positive pole of the utmost point and power circuit 12V, C ₁Negative pole meet battery cathode, SCR ₁T ₁One end of the utmost point and relay J, the negative pole of another termination power circuit 12V of relay; Another termination magnetic switch KC, the temperature detect switch (TDS) KW of relay normally open contact KJ meet R after the other end parallel connection of KC, KW ₄, R ₃, electric hot tray RL an end, R ₃Another termination D ₇Positive pole, R ₄The other end then meet D ₈Positive pole.

The utlity model has following advantage:

Except that having automatic boiling, automatic heat preserving function, logic control, computer demonstration, full-time timing function have been increased.Regularly during boiling, configure the scheduled time, the not power consumption basically of energising back electric cooker, when wait until the scheduled time, the automatic energized of control circuit, cook finish after, cut off the power supply automatically, be in keeping warm mode, save time, power saving, easy and simple to handle.

Fig. 1 is the utility model structural representation.

Fig. 2 is a casket bucket structure schematic diagram.

Fig. 3 is Fig. 2 profile.

Fig. 4 is Fig. 2 profile.

Fig. 5 is control circuit figure.

Describe the utility model in detail below in conjunction with accompanying drawing:

The sidepiece of pot body 1 is equipped with control panel 8, and control panel 8 rear portions are provided with control circuit.On control panel 8, be respectively equipped with

LCDs

2,3,4 function buttons 4 of working station indicator, magnetic switch 5, bottom at pot body 1 then is provided with battery 6, upper and lower surface is fixed with positive and negative electrode sheet 10,11 respectively in the battery 6, the casket bucket 12 middle battery holes 9 that have with battery 6 matches also are provided with supply socket 7 at the bottom of the side of pot body 1.Control circuit is divided into three parts: (one) current circuit; (2) timing control circuit; (3) electric cooker circuit.Division is as follows:

(1) electric power loop

Supply socket CZ one termination D ₃Positive pole, D ₅Negative pole and D ₈Negative pole, the end of electric hot tray RL, the other end of CZ meets C through overtemperature circuit breaker CD ₃, R ₂, D ₇Negative pole and the end of the normal opened contact KJ of relay J, C ₃, R ₂Other end parallel connection after meet D ₄Positive pole, D ₆Negative pole, D ₃, D ₄The negative pole parallel connection after meet D ₂Negative pole, C ₂Positive pole constitute the positive pole of rectifier power source, D ₅, D ₆Anodal parallel connection after meet D ₂Positive pole, C ₂Negative pole constitute the negative pole of rectifier power source.

220 volts of civil powers of sending into from supply socket CZ are through overtemperature circuit breaker CD, C ₃, R ₂Current limliting after enter D ₃, D ₄, D ₅, D ₆The bridge rectifier rectification of forming is again through C ₂Voltage stabilizing obtains the 12V DC power supply for timing control circuit work.

220 volts of the civil powers of sending into from supply socket CZ, another road is through overtemperature circuit breaker CD, light-emitting diode D ₇, current-limiting resistance R ₃, electric hot tray RL constitutes the loop, makes D ₇Luminous (yellow) constitutes power indicating circuit.

(2) timing control circuit

Three function control end S of electronic watch circuit ₁, S ₂, S ₃Meet regulation and control button AN respectively ₂, AN ₃, AN ₄An end, meet V after their other end parallel connection _DD, i.e. the positive pole of battery, the negative pole of battery meets V _SS, the timing signal output OUT of electronic watch circuit meets diode D ₁Positive pole, D ₁Negative pole connect controllable silicon SCR ₁The G utmost point, C ₁Positive pole and R ₁, R ₁Another termination AN ₁An end, AN ₁Another termination SCR ₁T ₂The positive pole that the utmost point and power circuit are 12 volts.C ₁Negative pole meet the V of electronic watch circuit _DD, SCR ₁T ₁One end of the utmost point and relay J, the negative pole that another termination power circuit of relay is 12 volts.

The current time of electronic watch circuit fixes time by AN with giving ₂, AN ₃, AN ₄Button is adjusted, and gives when arrival and fixing time, and electronic watch circuit OUT end output timing signal is through diode D ₁, capacitor C ₁Rectifying and wave-filtering obtains controllable silicon trigger voltage, controllable silicon SCR ₁Conducting, the relay J adhesive, its normal opened contact KJ closure is connected electric meal circuit power.

If before not arriving at the fixed time, connect the electric cooker power supply, can be by AN ₄Key, power supply 12V positive polarity is passed through R ₁To the conducting of silicon controlled control utmost point triggering controllable silicon, make the relay adhesive.

(3) electric cooker circuit

Relay normally open meets another termination magnetic switch KC, the temperature detect switch (TDS) KW of KJ, meets R after the other end parallel connection of KC, KW ₄, R ₃, electric hot tray RL an end, R ₃Another termination D ₇Positive pole, R ₄Another termination D ₈Positive pole.

Fully automatic rice cooker circuit working principle:

From 220 volts of civil powers that supply socket CZ sends into, when being set to give, timing circuit fixes time, not adhesive of relay, KJ often opens, and then 220 volts through CD, D ₇, R ₇, R ₃, RL constitutes loop, light-emitting diode D ₇Luminous indication civil power has inserted electric cooker, is in definition status.After giving the arrival of fixing time, electronic watch circuit sends timing signal, trigger the controllable silicon conducting, relay adhesive, KJ closure, because electric hot tray does not have before the heating, magnetic switch KC is in on-state, and temperature detect switch (TDS) also is in on-state, and at this moment 220 volts of civil powers are added on the electric hot tray RL through KJ, KC, electric hot tray begins to heat, light-emitting diode D ₇Owing to losing voltage, the closure of KJ, KC extinguishes light-emitting diode D ₈Because of obtaining voltage luminous (redness), the indication electric hot tray is being heated.When electric hot tray was warmed to 80 ℃, temperature detect switch (TDS) KW disconnected, but magnetic switch is still closed, electric hot tray is heated continuing, in pot for cooking rice rice do ripe, do pot, magnetic switch loss of excitation when cooking bottom temperature surpasses 103 ℃ and disconnecting, the electric hot tray no-voltage stops heating, light-emitting diode D ₈Extinguish D ₇Luminous, the indication electric rice cooker is in keeping warm mode.When temperature was reduced to below 80 ℃, temperature detect switch (TDS) disconnected again, and electric hot tray stops heating, at this moment D ₈Extinguish D ₇Luminous, the indication electric rice cooker is in keeping warm mode ...So repeatedly, reach electric cooker and be ripe insulation after meal, D ₈(redness), D ₇(yellow) distinguishes on and off, indicating the operating state of electric cooker.

Claims

1, a kind of fully automatic rice cooker, the sidepiece that it is characterized in that pot body 1 is equipped with control panel 8, be respectively equipped with LCDs 2,3,4 function buttons 4 of working station indicator, magnetic switch 5 on the control panel 8, bottom at pot body 1 then is provided with battery 6, top and bottom fixing positive and negative electrode sheet 10,11 respectively in the battery 6, have battery hole 9 in the middle of the casket bucket 12 that matches with battery 6, also be provided with supply socket 7 at the bottom of the side of pot body 1; The civil power of sending into from supply socket CZ one tunnel is through overtemperature circuit breaker CD, C ₃, R ₂Current limliting after enter D ₃, D ₄, D ₅, D ₆The bridge rectifier rectification of forming is again through C ₂Filtering, D ₂Voltage stabilizing obtains the 12V DC power supply, and another road of the civil power of sending into from supply socket CZ is through overtemperature circuit breaker CD, light-emitting diode D ₇, current-limiting resistance R ₃Constitute power indicating circuit with electric hot tray RL; Three function key S of electronic watch ₁, S ₂, S ₃Meet regulation and control button AN respectively ₂, AN ₃, AN ₄An end, connect anode after their other end parallel connection, the electronic watch signal output part meets diode D ₁Positive pole, D ₁Negative pole connect controllable silicon SCR ₁The G utmost point, C ₁Positive pole and R ₁, R ₁Another termination AN ₁An end, AN ₁Another termination SCR ₁T ₂The positive pole of the utmost point and power circuit 12V, C ₁Negative pole meet battery cathode, SCR ₁T ₁One end of the utmost point and relay J, the negative pole of another termination power circuit 12V of relay; Another termination magnetic switch KC, the temperature detect switch (TDS) KW of relay normally open contact KJ meet R after the other end parallel connection of KC, KW ₄, R ₃, electric hot tray RL an end, R ₃Another termination D ₇Positive pole, R ₄The other end then meet D ₈Positive pole.