CN2640373Y - Temp controlled intermittence open/close electric rice cooker (pot) - Google Patents
Temp controlled intermittence open/close electric rice cooker (pot) Download PDFInfo
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- CN2640373Y CN2640373Y CN 03255149 CN03255149U CN2640373Y CN 2640373 Y CN2640373 Y CN 2640373Y CN 03255149 CN03255149 CN 03255149 CN 03255149 U CN03255149 U CN 03255149U CN 2640373 Y CN2640373 Y CN 2640373Y
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- China
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- temperature
- pot
- switch
- electric cooker
- selected cell
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Abstract
The utility model relates to a temperature-controlled electric rice cooker (ware) turning on or off intermittently, comprising an inner pot, a housing, a pot cover, a power plug, an electrothermal disk, a magnetic steel temperature-controlled switch, a heat preservation switch, and a temperature-sensitive controller 1; wherein, the temperature-sensitive controller 1 is used for detecting the temperature in order to control the conduction time of the electrothermal disk automatically and intermittently; a temperature-sensible sensor Rt of the temperature-sensitive controller is positioned in the pot cover or on the upper end of the lateral side of the inner pot; a control switch 2 of the temperature-sensitive controller is positioned between a magnetic control switch 3 and the electrothermal disk 5; a timer select unit can comprise a monostable trigger or a single chip. The utility model makes full use of the heat gathering function of the heating disk, so that the rice can still be well cooked, despite the nearly forty percent power failure time, which has a distinct power saving effect, and at the same time the rice cooked has a better quality without losing the rice water; the time can be set and chosen freely corresponding to the food cooked, which makes the operation more convenient and is suitable for the needs of the different cooking habits.
Description
Technical field
The utility model relates to the electric cooking appliance technical field, and particularly a kind of Temperature Control Type intermittently opens and closes electric cooker (pot).
Background technology
The application of electric cooker is comparatively general, the function that former electric cooker is only cooked, is incubated.The electric cooker of current trend increased cook congee, the Baoshang function, on heating means, make an original heating plate into two little heating plates, or take to reduce the method that adds thermoelectric (al) power and attempt to save the part electric energy, but its economize on electricity effect and not obvious, and structure is complicated, inconvenient maintenance.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, tangible Temperature Control Type of power savings and intermittently opens and closes electric cooker (pot).
The technical solution of the utility model is achieved in that and adopts an electric hot tray, increases the conduction time that pot head temperature induction controller and temperature detect switch (TDS) come intermittently to control automatically electric hot tray.The heat accumulation function that makes full use of electric hot tray reaches the purpose that power saving saves money.
Described temperature sense controller is by A
1, R
t, R
1, R
2, R
3, R
4, BG
1, J
1, D
1, J
1-1Form A
1Be operational amplifier, R
tBe the thermistor of negative temperature coefficient, be installed on a pot top, R
3Be adjustable resistance, A
1, R
1, R
2, R
3, R
tForm voltage comparator, resistance R
1One end joins the other end and operational amplifier A with+9V power supply
1Reverse input end join thermistor R
tOne end ground connection, another termination A
1Reverse input end.R
2One termination+9V power supply, another termination A
1Input in the same way, R
3One end ground connection, another termination A
1Input in the same way.R
4, BG
1, J
1, D
1Form controller, R
4A termination A
1Output, another termination BG
1Base stage, BG
1Grounded emitter, BG
1Colelctor electrode and relay J
1Join J
1Another termination+9V, D
1Diode and J
1Parallel connection, J
1-1Be temperature switch, connect J with electric hot tray 5
1-1Be normally off.The control principle of described temperature sense controller is such: electric hot tray 5 heats after connecting power supply, when food is heated to boiling in pot (100 ℃), and R
tThe thermistor resistance significantly reduces, and voltage comparator makes A
1The output upset is high potential, BG
1Saturation conduction, relay J
1Work, temperature detect switch (TDS) J
1-1Normally-closed contact becomes off-state, and electric hot tray 5 outages only utilize accumulation of heat heat energy to make pot interior food continue boiling a period of time, when kettle temperature begins to drop to below 97 ± 3 ℃, and R
tThe thermistor resistance can increase again, and voltage comparator makes A
1Output overturns again and is electronegative potential, BG
1End relay J
1Do not work, temperature detect switch (TDS) is returned to normally off again, and electric hot tray 5 gets the electric heating that begins again, so goes round and begins again, and meal is cooked in pot, and pot bottom temperature controller magnetic switch 3 disconnects, and enters keeping warm mode.Because made full use of the heat accumulation function of heating plate, though nearly 40% power-off time is arranged, but still can finish the task of cooking preferably, power savings is obvious, and the meal that cooks is not simultaneously lost the thin rice gruel better quality, uses more convenient safety.
Description of drawings
Accompanying drawing 1 is the utility model control principle figure;
Accompanying drawing 2 is temperature sense controller circuitry figure;
Accompanying drawing 3 is a kind of embodiment circuit diagrams with timing circuit;
Fig. 4 is a temperature-sensitive sensor installation site schematic diagram.
1-temperature sense controller among the figure, the 2-temperature detect switch (TDS), the 3-magnetic switch, 4-insulation switch 5-heat dish, 6-is selected cell regularly.
Implementation method
Engaging accompanying drawing below is further described the utility model.Embodiment one (referring to accompanying drawing 1): its course of work is such: when the electric cooker energising was cooked, temperature sense control tolerance 1 was promptly started working R
tThe quick resistance of heat energy is installed in the pot cover or near the outside, interior pot upper end, can accurately responds to kettle temperature, when food in the pot seethes with excitement, and R
tResistance significantly reduce voltage comparator A
1Output become high potential, triode BG
ISaturation conduction, relay J
1Work, its contact J
1-1Change to off-state as temperature detect switch (TDS) 2 by normally off, electric hot tray 5 outages only utilize accumulation of heat that interior the food continuation of pot is seethed with excitement an a period of time; Kettle temperature can be reduced to critical condition below 97 ± 3 ℃ the time afterwards, R
tResistance can increase, and makes comparator A
1Output become electronegative potential, BG
1End J
1Do not work temperature detect switch (TDS) J
1-1Be returned to normally off by disconnection, electric hot tray 5 gets the electric heating that restarts, and so goes round and begins again, and the temperature detect switch (TDS) magnetic switch 3 of the cooked back of meal pot bottom disconnects in pot, enters keeping warm mode.Embodiment two (referring to accompanying drawing 3): the difference of present embodiment and embodiment one is to have increased regularly selected cell 6, and regularly selected cell 6 (is J with temperature sense controller 1 common control temperature detect switch (TDS) 2
1-1), regularly selected cell 6 mainly is made up of single-shot trigger circuit and selector switch, and its triggering signal is taken from BG
1The colelctor electrode electronegative potential, in pot, reach boiling temperature after, A
1Be output as high potential, triode BG
1Saturation conduction, BG
1Current collection is electronegative potential very, and this low-potential signal makes the upset of monostable flipflop output, triode BG
2Saturation conduction, J
1Work, J
1-1Become disconnection by normally closed, electric hot tray 5 outages, after through select time (4-6 minute), monostable flipflop automatically replies original state, J again
1-1Again adhesive, the electric hot tray energising restarts heating, so goes round and begins again, and meal is cooked in pot, and pot bottom temperature controller magnetic switch disconnects, and enters keeping warm mode.Temperature-sensitive sensor R
tCan be thermistor, also can be occasionally ic-type temperature sensor of thermoelectricity, and regularly selected cell can be made of monostable flipflop or single-chip microcomputer, and this unit that is made of single-chip microcomputer has higher adaptability, and more opening and closing time can be set.The characteristics of embodiment two are to reduce temperature detect switch (TDS) break-make frequency, and can select time independently be set according to the difference of cooking food, make more convenient operation, more can adapt to the demands of different culinary art customs.
Claims (3)
1, a kind of Temperature Control Type intermittently opens and closes electric cooker (pot), and comprise interior pot, shell, pot cover, attaching plug, electric hot tray, magnet steel temperature detect switch (TDS), insulation switch, it is characterized in that: this electric cooker (pot) also comprises a temperature sense controller (1) of controlling the conduction time of electric hot tray as the interior temperature of detection electric cooker (pot) with automatic intermittence; The temperature-sensitive sensor (Rt) of temperature sense controller is installed in the pot cover or interior pot outer upper end part; The temperature detect switch (TDS) of temperature sense controller (2) is connected between magnetic switch (3) and the electric hot tray (5).
2, Temperature Control Type according to claim 1 intermittently opens and closes electric cooker (pot), it is characterized in that: this electric cooker (pot) also comprises a regularly selected cell (6); The colelctor electrode of the triode (BG1) in the temperature sense controller (1) joins with the triggering signal input of timing selected cell (6), and regularly the output control terminal of selected cell links to each other with the control end of control temperature detect switch (TDS) (2); Regularly selected cell is provided with manual selection switch.
3, intermittently opening and closing electric cooker (pot) according to claim 1 or 2 described Temperature Control Types is characterized in that: temperature-sensitive sensor (Rt) can be a thermistor, also can be occasionally ic-type temperature sensor of thermoelectricity, regularly selected cell can be made of monostable flipflop or single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255149 CN2640373Y (en) | 2003-08-20 | 2003-08-20 | Temp controlled intermittence open/close electric rice cooker (pot) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255149 CN2640373Y (en) | 2003-08-20 | 2003-08-20 | Temp controlled intermittence open/close electric rice cooker (pot) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2640373Y true CN2640373Y (en) | 2004-09-15 |
Family
ID=34294836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255149 Expired - Fee Related CN2640373Y (en) | 2003-08-20 | 2003-08-20 | Temp controlled intermittence open/close electric rice cooker (pot) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2640373Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579190B (en) * | 2009-06-09 | 2011-04-27 | 美的集团有限公司 | Electric cooker and method for autonomously detecting dry-burning state thereof |
| CN105193244A (en) * | 2014-05-29 | 2015-12-30 | 佛山市顺德区美的电热电器制造有限公司 | Pressure cooking utensil |
| CN106263937A (en) * | 2015-05-29 | 2017-01-04 | 鸿富锦精密工业(武汉)有限公司 | Insulating cup and heat-insulation system |
| CN106805765A (en) * | 2015-11-27 | 2017-06-09 | 佛山市顺德区美的电热电器制造有限公司 | The cooking control method of electric cooking pot and electric cooking pot |
-
2003
- 2003-08-20 CN CN 03255149 patent/CN2640373Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579190B (en) * | 2009-06-09 | 2011-04-27 | 美的集团有限公司 | Electric cooker and method for autonomously detecting dry-burning state thereof |
| CN105193244A (en) * | 2014-05-29 | 2015-12-30 | 佛山市顺德区美的电热电器制造有限公司 | Pressure cooking utensil |
| CN105193244B (en) * | 2014-05-29 | 2017-10-27 | 佛山市顺德区美的电热电器制造有限公司 | Pressure cooking appliance |
| CN106263937A (en) * | 2015-05-29 | 2017-01-04 | 鸿富锦精密工业(武汉)有限公司 | Insulating cup and heat-insulation system |
| CN106805765A (en) * | 2015-11-27 | 2017-06-09 | 佛山市顺德区美的电热电器制造有限公司 | The cooking control method of electric cooking pot and electric cooking pot |
| CN106805765B (en) * | 2015-11-27 | 2018-12-18 | 佛山市顺德区美的电热电器制造有限公司 | The cooking control method of electric cooking pot and electric cooking pot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |