CN102436277A - Automatic anti-spill power-saving control method and device and electric cooker with device - Google Patents
Automatic anti-spill power-saving control method and device and electric cooker with device Download PDFInfo
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- CN102436277A CN102436277A CN2011103784178A CN201110378417A CN102436277A CN 102436277 A CN102436277 A CN 102436277A CN 2011103784178 A CN2011103784178 A CN 2011103784178A CN 201110378417 A CN201110378417 A CN 201110378417A CN 102436277 A CN102436277 A CN 102436277A
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Abstract
The invention discloses an automatic anti-spill power-saving control method, an automatic anti-spill power-saving control device and an electric cooker with the device. The method mainly comprises the following steps of: providing a working voltage through an isolating type direct current stabilized voltage supply, monitoring a rice cooking state through a control signal generating circuit by utilizing a temperature sensor, converting information acquired by the temperature sensor into a command signal for connecting and disconnecting a heating coil power supply and transmitting the command signal to a power output circuit; and connecting and disconnecting the heating coil power supply through the power output circuit according to a command transmitted by the control signal generating circuit so as to stop heating or reheat the electric cooker. A temperature range structure is designed in the control signal generating circuit, a mounting position of the sensor is properly set, common controlled silicon is controlled by a photoresistor type charge coupled device, and the device has the functions of improving energy utilization efficiency of the electric cooker, avoiding liquid from spilling and improving the rice cooking quality. Meanwhile, the control signal generating circuit has low power consumption, is low in cost, has small overall installation and occupancy space, is easy to modularize and miniaturize and ultra-thin, and has a characteristic of preventing electric shock.
Description
Technical field
The present invention relates to electric cooker/pot field, particularly a kind of automatic anti-overflow power-saving control method, device and adopt electric cooker/pot of this device.
Background technology
Existing electric cooker (pot) process of cooking is: Mi Shui is put into pot; The Curie temperature switch is pressed energized, and the heating of electric cooker heating plate begins the heating of pot body is also continued heating with same power when being heated to boiling; If cooking cooked rice is heated to liquid and receive does; Surpass 100 degrees centigrade until cooking bottom temperature and reach Curie point, at this moment the permanent magnet in Curie's switch loses magnetism, the switch disconnection that automatically resets.If cook congee, heating process will be sustained.Therefore prior art has following deficiency: the pot phenomenon of overflowing often takes place in the process of 1) cooking, not only influence the quality and the mouthfeel of meal, also be unfavorable for keeping the living environment cleaning.2) in fact boil the back power that heats as long as the assurance temperature of boiler just is enough to guarantee the quality of meal near 100 degrees centigrade.Continuation is a waste of electric energy with the continuous heating kettle body of identical power.3) keep the marquis by pot for anti-Spill stopping pan needs the people, when taking place to overflow the pot phenomenon, in time open pot cover, avoid continuing the pot that overflows.Wasted manpower.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art; The object of the present invention is to provide automatic anti-overflow power-saving control method, device and adopt electric cooker/pot of this device; Can reach boils pot phenomenon of overflowing can't occur, and guarantees the quality of meal, has characteristics such as anti-overflow pot, economize on electricity; And simple in structure, device is selected for use rationally.
To achieve these goals, the technical scheme of the present invention's employing is:
The automatic anti-overflow power-saving control method of a kind of electric cooker/pot, this electric cooker/pot comprises pot cover, and the side of pot cover, end face or top surface side face connecting part are provided with gas orifice, and the bottom of pot body is provided with heating plate, may further comprise the steps:
If the temperature of measuring is then sent the instruction that electric cooker/pot is stopped to heat greater than preset maximal value, the disconnection civil power is connected with heating plate, the minimum temperature value that equals to preset until temperature;
If the temperature of measuring is then sent the instruction that electric cooker/pot is begun to heat less than preset minimum value, the connection civil power is connected with heating plate, the maximum temperature values that equals to preset until temperature;
The circulation of repeating step two, until the people for cutting off the electricity supply, or the switch outage that resets in the play.
Wherein, Said temperature sensor is the inner can that thermistor is installed; Said control signal generation circuit is based on the NE555 time base circuit, and temperature sensor is arranged on 1～15 centimetre of position, gas orifice the place ahead of electric cooker/pot, selects different distances according to the diverse location of gas orifice.
The invention provides a kind of device, comprising based on said control method:
Isolated DC stabilized voltage supply 1 is for control signal generation circuit 2 provides WV;
Control signal generation circuit 2 is a core with the NE555 time base circuit, and 4,8 pin of NE555 are connected with the positive pole of said power supply 1, and 1 pin is connected with the negative pole of said power supply 1, and 5 pin are connected with said power supply 1 negative pole through first capacitor C 1, and 7 pin are unsettled; Thermistor Rt is installed in the can as sensor; RP is parallelly connected with potentiometer; Rt after the parallel connection, RP one end and said 1 anodal connection of power supply; The other end is connected with 6 pin of said NE555, is connected through first resistance R 1 between 6 pin of NE555 and 2 pin, and 2 pin of NE555 also are connected with said power supply 1 negative pole through second resistance R 2; The positive pole of the light emitting diode among 3 pin of NE555 and the photoresistance type photoelectrical coupler IC2 links to each other, and the light emitting diode negative pole among the said photoelectrical coupler IC2 links to each other with said power supply 1 negative pole through the 3rd resistance R 3;
Said control device is arranged on outside electric cooker/pot, is connected between the power lead and electric cooker/pot of electric cooker/pot, perhaps is arranged in electric cooker/pot, is connected between the heating plate of power lead and electric cooker/pot of electric cooker/pot.
A kind of electric cooker of the present invention/pot comprises attaching plug and heating plate, between its attaching plug and heating plate, is provided with described automatic anti-overflow electricity-saving control device.
The present invention's advantage compared with prior art is:
1) full-automatic.Because the employing electronic circuit is gathered boiling automatically through sensor and has been cooled to information to a certain degree with pot, and can instruct to heating plate power supply and power failure, thereby after having guaranteed liquid boiling under the unserviced situation, can not overflow, and can guarantee the quality of meal.
2) anti-overflow pot.Gas orifice when boiling on the pot cover (window) can spray vapours to sensor, and control signal generation circuit instruction power output circuit is stopped the heating plate power supply, stops the heating of pot body, and therefore an excessive pot phenomenon can not take place.Thereby realized the function of anti-overflow pot.
3) economize on electricity.Owing to after the boiling,, except that the anti-overflow pot, also realized the function of economize on electricity simultaneously to the heating plate intermittent power supply.
4) low cost.The structure of the power output circuit that is adopted, thermosensitive resistance type photoelectronic coupler, bidirectional trigger diode, electric capacity, common bidirectional triode thyristor and to compare cost with light controllable silicon or ac solid relay low.
5) driving power output circuit electric current is little.With directly to utilize the DC driven bidirectional triode thyristor to compare drive current little.
6) little, in light weight, easy ultra-thinization of volume.Because drive current is little, therefore helps reducing the power of D.C. regulated power supply, thereby accomplish product design lightweight, ultra-thinization of volume Xiao Yi.
7) protection against electric shock.Because sensor and mains supply are in isolation, guaranteed that therefore human body can not get an electric shock through sensor.
Description of drawings
Accompanying drawing is the electric cooker of the present invention/automatic anti-overflow electricity-saving control device of pot circuit theory diagrams.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
The invention provides the automatic anti-overflow power-saving control method of a kind of electric cooker/pot, this electric cooker/pot comprises pot body and pot cover, and the side of pot cover, end face or top surface side face connecting part are provided with gas orifice, and the bottom of pot body is provided with heating plate, may further comprise the steps:
If the temperature of measuring is then sent the instruction that electric cooker/pot is stopped to heat greater than preset maximal value, break off being connected of civil power and heating plate, stop to heat the minimum temperature value that equals to preset until temperature;
If the temperature of measuring is then sent the instruction that electric cooker/pot is begun to heat less than preset minimum value, be communicated with being connected of civil power and heating plate, begin to heat the maximum temperature values that equals to preset until temperature;
The circulation of repeating step two, until the people for cutting off the electricity supply, or the switch outage that resets in the play.
Wherein, Said temperature sensor is the inner can that thermistor is installed; Said control signal generation circuit is based on the NE555 time base circuit; Gas orifice is arranged on side, end face or the top surface side face connecting part of electric cooker/pot lid, and temperature sensor is arranged on 1～15 centimetre of position, gas orifice top of electric cooker/pot lid, selects different distances according to the diverse location of gas orifice.
As shown in Figure 1, the invention provides a kind of device based on said control method, comprising:
Isolated DC stabilized voltage supply 1 for control signal generation circuit 2 provides WV, is guaranteed the isolation of control signal generation circuit and utility grid simultaneously, to prevent that human body from passing through sensor and getting an electric shock.
Control signal generation circuit 2 is a core with the NE555 time base circuit, and 4,8 pin of NE555 are connected with the positive pole of said power supply 1, and 1 pin is connected with the negative pole of said power supply 1, and 5 pin are connected with said power supply 1 negative pole through first capacitor C 1, and 7 pin are unsettled; Thermistor Rt is installed in and is used as sensor in the can, and RP is parallelly connected with potentiometer, and the Rt after the parallel connection, RP one end and 1 anodal connection of said power supply, the other end is connected with 6 pin of said NE555, passes through first resistance R between 6 pin of NE555 and 2 pin
1Connect; 2 pin of NE555 also are connected with said power supply 1 negative pole through second resistance R 2; The positive pole of the light emitting diode among 3 pin of NE555 and the photoresistance type photoelectrical coupler IC2 links to each other; Light emitting diode negative pole among the said photoelectrical coupler IC2 links to each other with said power supply 1 negative pole through the 3rd resistance R 3, and A2, B2 are the terminals at thermistor Rt two ends among the figure;
The principle of work of control signal generation circuit 2 is following: thermistor Rt is installed in and is used as sensor in the can, and certain distance also and between the gas orifice is left in the dead ahead that is installed in the pot cover gas orifice.Rt is a negative tempperature coefficient thermistor; Be in high resistance state at normal temperatures; Electric cooker/pot energising begins to cook, and the gas orifice on the pot cover does not have the vapours ejection before not boiling; Even perhaps have vapours ejection intensity also a little less than weakened the heating efficiency of steam owing to leave certain distance between sensor and the gas orifice to sensor, the vapours deficiency of ejection is so that Rt reaches low resistive state before therefore boiling.Have only the heat steam of ejection when boiling just can make Rt change low resistive state into by high-impedance state.The high-impedance state of Rt refers to 3 pin that make NE555 and keeps the resistance of high level interval always; The low resistive state of Rt refers to and makes 3 pin of NE555 transfer low level resistance to by high level, when resistance continues to reduce up to making 3 pin interval by the resistance that low level transfers high level to.Between the resistance state area corresponding to corresponding temperature range.
The interval endpoint value of high-impedance state after the effect of parallelly connected RP on the Rt is the adjustment parallel connection.When cooking appetite not simultaneously with same pot; The pot such as
, different appetite thermal inertias is different.If high-impedance state interval endpoint value is constant, the pot meal non-overflow pan of doing
and do
pot causes the pot that overflows because the increase thermal inertia of appetite adds conference during meal.The pot phenomenon when just can avoiding having a good appetite, upper end, high-impedance state interval point value takes place to overflow if suitably turn down.
As A, when the B termination is led to mains supply, it is the direct current of V that the isolated DC stabilized voltage supply provides needed voltage to control signal generation circuit.This moment, Rt was in high-impedance state; The 2 pin voltages of NE555
thus 3 pin of NE555 output high level causes the lumination of light emitting diode among the photoelectronic coupler IC2.Electric cooker/stew to such an extent that electric heating plate begins heating.When being heated to when boiling; Vapours is ejected on the sensor through the gas orifice on the pot cover; The temperature of sensor is raise gradually; Thermistor changes low resistive state into by high-impedance state; This moment, 6 pin voltages
, 2 pin voltages
, the 3 pin saltus steps of NE555 were low level; Light emitting diode among the photoelectronic coupler IC2 extinguishes, and the heating plate dead electricity stops heating.Can continue a period of time because the effect of thermal inertia is boiled, and prolong with the increase of appetite duration of boiling.To stop at last boiling and cooling gradually.Sensor also stops to heat up and cooling gradually, and the Rt resistance increases gradually.When the Rt resistance is increased to the 2 pin voltages
that make NE555, will repeat said process.
The principle of work of power output circuit 3 is following: the photoresistance light receiving area when the lumination of light emitting diode among the photoelectronic coupler IC2 among the IC2 is in low resistive state; To capacitor C 2 chargings; When voltage reaches the forward voltage of bidirectional trigger diode VD1; The VD1 conducting triggers controllable silicon VT1 conducting, makes heating plate energising heating.Photoresistance when the light emitting diode among the photoelectronic coupler IC2 is not luminous among the IC2 not light receiving area in high-impedance state; To capacitor C 2 chargings; Voltage does not reach the forward voltage of bidirectional trigger diode VD1 in the half period of civil power; VD1 can conducting, can not trigger controllable silicon VT1 conducting, makes heating plate outage stopping heating.
Adopt electric cooker/pot of above-mentioned control device, can effectively prevent the Spill stopping pan phenomenon, and have the effect of economize on electricity.
Wherein said control device can be arranged on outside electric cooker/pot, is connected between the power lead and electric cooker/pot of electric cooker/pot, and the power supply of electric cooker/pot then connects between in the drawings A1, the B1.
Perhaps, said control device is arranged in electric cooker/pot, is connected between the heating plate of power lead and electric cooker/pot of electric cooker/pot, and the heating plate power supply connects between in the drawings A1, the B1.
Claims (9)
1. automatic anti-overflow power-saving control method of electric cooker/pot, this electric cooker/pot comprises pot cover, and the side of pot cover, end face or top surface side face connecting part are provided with gas orifice, and the bottom of pot body is provided with heating plate, it is characterized in that, may further comprise the steps:
Step 1 is provided with temperature sensor in the gas orifice anterior position of electric cooker/pot, in order to measure the temperature at gas orifice place;
Step 2, send instruction by control signal generation circuit according to the temperature corresponding signal of measuring:
If the temperature of measuring is then sent the instruction that electric cooker/pot is stopped to heat greater than preset maximal value, the disconnection civil power is connected with heating plate, the minimum temperature value that equals to preset until temperature;
If the temperature of measuring is then sent the instruction that electric cooker/pot is begun to heat less than preset minimum value, the connection civil power is connected with heating plate, the maximum temperature values that equals to preset until temperature;
The circulation of repeating step two, until the people for cutting off the electricity supply.
2. the automatic anti-overflow power-saving control method of electric cooker according to claim 1/pot is characterized in that, said temperature sensor is the inner can that thermistor has been installed.
3. the automatic anti-overflow power-saving control method of electric cooker according to claim 1/pot is characterized in that, said control signal generation circuit is based on the NE555 time base circuit.
4. the automatic anti-overflow power-saving control method of electric cooker according to claim 1/pot is characterized in that, said temperature sensor is arranged on 1～15 centimetre of position, gas orifice the place ahead of electric cooker/pot.
5. the automatic anti-overflow power-saving control method of electric cooker according to claim 1/pot is characterized in that, said preset minimum temperature value is 90 degrees centigrade, and preset maximum temperature values is 98 degrees centigrade.
6. a device of realizing the said control method of claim 1 is characterized in that, comprising:
Isolated DC stabilized voltage supply (1) is for control signal generation circuit (2) provides WV;
Control signal generation circuit (2) is a core with the NE555 time base circuit, and 4,8 pin of NE555 are connected with the positive pole of said power supply (1), and 1 pin is connected with the negative pole of said power supply (1), and 5 pin are connected with said power supply (1) negative pole through first capacitor C 1, and 7 pin are unsettled; Thermistor Rt is installed in the can as sensor; RP is parallelly connected with potentiometer; Rt after the parallel connection, RP one end and said power supply (1) positive pole are connected; The other end is connected with 6 pin of said NE555, is connected through first resistance R 1 between 6 pin of NE555 and 2 pin, and 2 pin of NE555 also are connected with said power supply (1) negative pole through second resistance R 2; The positive pole of the light emitting diode among 3 pin of NE555 and the photoresistance type photoelectrical coupler IC2 links to each other, and the light emitting diode negative pole among the said photoelectrical coupler IC2 links to each other with said power supply (1) negative pole through the 3rd resistance R 3;
Power output circuit (3); With bidirectional triode thyristor VT1 is core; After connecting with bidirectional triode thyristor VT1, connects the heating plate of electric cooker/pot with civil power; Photoresistance among the said photoelectrical coupler IC2 be connected across between civil power two lines after second capacitor C 2 is connected, the control utmost point of bidirectional triode thyristor VT1 is connected on the line of photoresistance and capacitor C 2 through bidirectional trigger diode VD1.
7. the automatic anti-overflow electricity-saving control device of electric cooker according to claim 6/pot is characterized in that said control device is arranged on outside electric cooker/pot, is connected between the power lead and electric cooker/pot of electric cooker/pot.
8. the automatic anti-overflow electricity-saving control device of electric cooker according to claim 6/pot is characterized in that said control device is arranged in electric cooker/pot, is connected between the heating plate of power lead and electric cooker/pot of electric cooker/pot.
9. electric cooker/pot comprises attaching plug and heating plate, it is characterized in that, is provided with the described automatic anti-overflow electricity-saving control device of claim 6 between its attaching plug and the heating plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103784178A CN102436277A (en) | 2011-11-24 | 2011-11-24 | Automatic anti-spill power-saving control method and device and electric cooker with device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103784178A CN102436277A (en) | 2011-11-24 | 2011-11-24 | Automatic anti-spill power-saving control method and device and electric cooker with device |
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| CN102436277A true CN102436277A (en) | 2012-05-02 |
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| CN2011103784178A Pending CN102436277A (en) | 2011-11-24 | 2011-11-24 | Automatic anti-spill power-saving control method and device and electric cooker with device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134371A1 (en) * | 2018-01-08 | 2019-07-11 | 佛山市顺德区美的电热电器制造有限公司 | Upper cover assembly, cooking appliance, cooking method and computer readable storage medium |
| CN110384399A (en) * | 2019-03-15 | 2019-10-29 | 浙江苏泊尔家电制造有限公司 | The control method of cooking apparatus and cooking apparatus |
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| CN2103968U (en) * | 1991-07-11 | 1992-05-13 | 江田中 | Automatic anti-overflow apparatus for electric cooker |
| CN2882464Y (en) * | 2006-01-05 | 2007-03-28 | 山东九阳小家电有限公司 | Ceramic electrical rice cooker |
| WO2008091044A1 (en) * | 2007-01-25 | 2008-07-31 | Woongjin Cuchen Co., Ltd. | Apparatus and method for controlling heat of electric cooker |
| KR20090103458A (en) * | 2008-03-28 | 2009-10-01 | 쿠쿠전자주식회사 | Electric cooker |
| CN201533297U (en) * | 2009-09-20 | 2010-07-21 | 韦周前 | Thyristor trigger circuit |
| CN201876748U (en) * | 2010-11-10 | 2011-06-22 | 陈子杨 | Electric blanket temperature controller manufactured with time base circuit |
| CN202362685U (en) * | 2011-11-24 | 2012-08-01 | 清华大学 | Automatic anti-overflowing power-saving control device and electric cooker/pot using same |
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2011
- 2011-11-24 CN CN2011103784178A patent/CN102436277A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103968U (en) * | 1991-07-11 | 1992-05-13 | 江田中 | Automatic anti-overflow apparatus for electric cooker |
| CN2882464Y (en) * | 2006-01-05 | 2007-03-28 | 山东九阳小家电有限公司 | Ceramic electrical rice cooker |
| WO2008091044A1 (en) * | 2007-01-25 | 2008-07-31 | Woongjin Cuchen Co., Ltd. | Apparatus and method for controlling heat of electric cooker |
| KR20090103458A (en) * | 2008-03-28 | 2009-10-01 | 쿠쿠전자주식회사 | Electric cooker |
| CN201533297U (en) * | 2009-09-20 | 2010-07-21 | 韦周前 | Thyristor trigger circuit |
| CN201876748U (en) * | 2010-11-10 | 2011-06-22 | 陈子杨 | Electric blanket temperature controller manufactured with time base circuit |
| CN202362685U (en) * | 2011-11-24 | 2012-08-01 | 清华大学 | Automatic anti-overflowing power-saving control device and electric cooker/pot using same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019134371A1 (en) * | 2018-01-08 | 2019-07-11 | 佛山市顺德区美的电热电器制造有限公司 | Upper cover assembly, cooking appliance, cooking method and computer readable storage medium |
| CN110384399A (en) * | 2019-03-15 | 2019-10-29 | 浙江苏泊尔家电制造有限公司 | The control method of cooking apparatus and cooking apparatus |
| CN110384399B (en) * | 2019-03-15 | 2021-09-07 | 浙江苏泊尔家电制造有限公司 | Cooking appliance and control method thereof |
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Application publication date: 20120502 |