CN201536980U - Electric chafing dish - Google Patents
Electric chafing dish Download PDFInfo
- Publication number
- CN201536980U CN201536980U CN2009202386307U CN200920238630U CN201536980U CN 201536980 U CN201536980 U CN 201536980U CN 2009202386307 U CN2009202386307 U CN 2009202386307U CN 200920238630 U CN200920238630 U CN 200920238630U CN 201536980 U CN201536980 U CN 201536980U
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- CN
- China
- Prior art keywords
- circuit
- chafing dish
- chip microcomputer
- temperature
- power
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- Expired - Fee Related
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/2483—Warming devices with electrical heating means
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
Disclosed is an electric chafing dish which comprises an outer casing, a heating plate, a pot liner, a temperature sensor and a chafing dish intelligent control circuit, wherein the pot liner is placed on the heating plate. Besides, the chafing dish intelligent control circuit includes a singlechip circuit, a key circuit, a display circuit, a temperature acquisition circuit, a heating plate electronic switch circuit and a direct current power circuit, wherein the key circuit, the display circuit, the temperature acquisition circuit and the heating plate electronic switch circuit are respectively connected with an input port and an output port of a singlechip, and the direct current power circuit for supplying power is connected with the singlechip circuit, the key circuit, the display circuit, the temperature acquisition circuit and the heating plate electronic switch circuit. The temperature sensor acquires the temperature of the pot liner and converts the temperature into electric signals inputted to the singlechip through the temperature acquisition circuit; and the singlechip inputs key signals of the key circuit, outputs chafing dish working state signals to the display circuit to be displayed, and outputs switch control signals to the heating plate electronic switch circuit to control power-on or power-off state of the heating plate. By adopting the intelligent control chip singlechip, the electric chafing dish realizes the function of automatically controlling cooking, detects and controls power of the chafing dish according to real-time temperature, reduces electric quantity loss, and solves the problems of inconvenient operation, single function and comparatively large power consumption existing in a conventional chafing dish.
Description
Technical field
The utility model relates to a kind of electric chafing dish.
Background technology
The electric chafing dish of selling on the market, heating function rely on user's hand-guided, and function singleness do not possess the function of Based Intelligent Control, and power consumption is many.
Summary of the invention
The purpose of this utility model is exactly the defective that overcomes prior art, and a kind of electric chafing dish is provided, increased cook automatically, cook congee automatically, the function of Based Intelligent Control such as boiling water automatically, reduce the loss of electric weight simultaneously.
For achieving the above object, a kind of electric chafing dish of the utility model, comprise shell, heat-generating disc and pot courage that places on the heat-generating disc, also comprise temperature detector and chafing dish intelligence control circuit, this chafing dish intelligence control circuit comprises single chip circuit, import with single-chip microcomputer respectively, the key circuit that delivery outlet connects, display circuit, temperature collection circuit, the heat-generating disc electronic switching circuit, and link to each other with foregoing circuit and the direct current power source supplying power circuit, the temperature of temperature detector collection pot courage, and temperature transition is become signal of telecommunication input single-chip microcomputer by temperature collection circuit, the push button signalling of single-chip microcomputer input key circuit, output chafing dish working state signal shows that to display circuit output switch control signal is to heat-generating disc electronic switching circuit control heat-generating disc energising or outage.
In a kind of preferred implementation, the circuit board of above-mentioned chafing dish intelligence control circuit is divided into control panel and power panel, control panel is the control panel of being located on the shell, comprise single chip circuit, key circuit and display circuit, button and display unit place on the outer wall of shell, power panel is located in the shell, comprises temperature collection circuit, heat-generating disc electronic switching circuit and DC power supply circuit, and power panel and control panel are provided with interconnected connection jaws.
In a kind of preferred implementation, the central authorities of above-mentioned heat-generating disc are provided with through hole, and temperature detector is located in the described through hole, and temperature detector has the spring that makes temperature detector compress pot courage, the temperature of courage so that conduction is more accurately stewed.
Above-mentioned chafing dish intelligence control circuit also can comprise the warning circuit that is connected with single-chip microcomputer input, delivery outlet.
The utility model is because in the internal circuit of chafing dish, increased the single-chip microcomputer intelligent control chip, send button control signal and temperature parameter information by key circuit and temperature collection circuit to single-chip microcomputer, again by single-chip microcomputer to the periphery equipment send instruction, realize the Based Intelligent Control function that control is automatically cooked.And detect the power of controlling chafing dish according to real time temperature, reduce the loss of electric weight.
As seen, the utility model has solved the operation inconvenience of traditional chafing dish, function singleness, the problem that power consumption is more owing to adopted the intelligent control chip single-chip microcomputer.
Description of drawings
Fig. 1 is the stereoscopic schematic diagram of embodiment;
Fig. 2 is the decomposing schematic representation of Fig. 1;
Fig. 3 is the control panel circuit theory diagrams of embodiment;
Fig. 4 is the power panel circuit theory diagrams of embodiment.
The specific embodiment
The CONSTRUCTED SPECIFICATION of the utility model embodiment is described in detail in detail below in conjunction with accompanying drawing.
As shown in Figure 1, be the stereoscopic schematic diagram of the utility model embodiment, wherein each label name is called:
Stainless steel food steamer 1, steam vent 2, charactron 3, control panel 4, light emitting diode lamp 5, button 6, pot courage 7, enclosing cover 8, shell 9.Wherein: button 6 contains nine buttons, be respectively chafing dish button 6a ,+button 6b, food steamer button 6c ,-button 6d, insulation/pass button 6e, Baoshang button 6f, heating/heat milk button 6g, pot congee button 6h, button 6i cooks.Light emitting diode lamp 5 and button 6 correspondences, the corresponding indicator lamp of a button.
As shown in Figure 2, be the decomposing schematic representation of Fig. 1, wherein each label name is called:
Heat-generating disc 10, ceramic ring 11, heat-generating disc fixed screw post 12, heat-generating disc power interface 13, temperature detector 14, spring 15, spring pressuring plate 16, middle level 17, shell 9, control panel 4, louvre 18, bottom 19, power panel insulation booth 20, base 21.
As Fig. 1, shown in Figure 2, embodiment comprises shell 9, heat-generating disc 10, pot courage 7, temperature detector 14 and chafing dish intelligence control circuit, the circuit board of chafing dish intelligence control circuit is divided into control panel and power panel, control panel is the control panel of being located on the shell 94, nine buttons 6 of control panel 4, nine light emitting diode lamp display units 5 and four charactron display units 3 place on the outer wall of shell 9, power panel is located in the shell 9, place in the power panel insulation booth 20, pot courage 7 places on the heat-generating disc 10, the central authorities of heat-generating disc 10 are provided with through hole, temperature detector 14 is located in the described through hole, and temperature detector 14 has the spring 15 that makes temperature detector 14 compress pot courage 7.
As Fig. 3, shown in Figure 4, the circuit board of chafing dish intelligence control circuit is made up of control panel and power panel, comprise single chip circuit 36, import with single-chip microcomputer U1 respectively, the key circuit 35 that delivery outlet connects, display circuit 33, temperature collection circuit 44, heat-generating disc electronic switching circuit 43, warning circuit 42, and link to each other with foregoing circuit and direct current power source supplying power circuit 41,42, the temperature that temperature detector 14 is gathered pot courage 7, and temperature transition is become signal of telecommunication input single-chip microcomputer U1 by temperature collection circuit 44, the push button signalling of single-chip microcomputer U1 input key circuit 35, output chafing dish working state signal to display circuit 33 shows, output switch control signal is to 43 control heat-generating discs, 10 energisings of heat-generating disc electronic switching circuit or outage, and output alarm signal to warning circuit 42 is reported to the police.
As shown in Figure 3, be the control panel circuit theory diagrams of embodiment.31 is the 6P socket, is used for connecting control panel and power panel, wherein connect comprise 5V power vd D, VSS, temperature sensor TEMP, buzzer BUZ, relay R EL; 32 is the gating triode switch of peripheral display part, by the control of single-chip microcomputer, opens and closes peripheral the demonstration; 33 is peripheral display part, and difference in functionality is carried out corresponding directly perceived the demonstration; 34 is current-limiting resistance, guarantees the display part and presses the bond energy operate as normal; 35 is the button part, and it is simple and clear that the user is operated; 36 is the core component of control panel---the single-chip microcomputer intelligent control chip, it also is a core of the present utility model simultaneously, finishes all functions by its control relay.
As shown in Figure 3, control panel comprises single chip circuit 36, key circuit 35 and display circuit 33, key circuit 35 comprises cooks, heating/heat milk, Baoshang, pot congee, food steamer, insulation/pass, chafing dish, +,-nine button S1 to S9, the button that is connected to single-chip microcomputer U1 after the end of these nine button S1 to S9 is connected to each other is read arrival line PA7, be connected a pull-up resistor R24 between this mouthful line PA7 and the single-chip microcomputer dc source VDD, the other end of nine button S1 to S9 is connected to nine key scan mouth line PC0 to PC2 of single-chip microcomputer U1 respectively through corresponding key current-limiting resistance R10 to R18, PB0 to PB5.The operation principle of key circuit is: adopt flatly and read in, the scan mode of many mouthfuls of outputs, the PA7 mouth line of single-chip microcomputer U1 is made as input, other key scan mouth lines PC0 to PC2, PB0 to PB5 be output low level one by one, whether detect the PA7 mouth then is low level, after low level, still be defined as low level through delaying time to disappear to tremble, then once pressing for respective keys.Display circuit 33 comprises indicator lamp and charactron display circuit, described indicator lamp display circuit comprises nine light emitting diode L1 to L9 with nine button S1 to S9 correspondences, the negative pole of these nine light emitting diode L1 to L9 is connected to nine key scan mouth line PC0 to PC2 of single-chip microcomputer respectively through the demonstration current-limiting resistance R1 to R9 of correspondence, PB0 to PB5, positive level is connected to each other, be provided with a light emitting diode gating triode Q1, the base stage of light emitting diode gating triode Q1 connects the light emitting diode gating mouth line PA2 of single-chip microcomputer U1, colelctor electrode connects single-chip microcomputer dc source VDD, and emitter stage connects the positive pole of light emitting diode; The charactron display circuit comprises four charactron display board SEG, seven sections display lines of four charactrons and colon display line are connected to eight key scan mouth line PC0 to PC1, PB0 to PB5 of single-chip microcomputer respectively through the demonstration current-limiting resistance of correspondence, be provided with four charactron gating triode Q2 to Q5, the base stage of four charactron gating triode Q2 to Q5 connects the four bar digit code pipe gating mouth line PA3 to PA6 of single-chip microcomputer U1 respectively, colelctor electrode all connects single-chip microcomputer dc source VDD, and emitter stage connects the position choosing end of four charactrons respectively.The operation principle of display circuit is: adopt dynamically to show, because human eye vision has of short duration persisting, so in a short period of time, show the light emitting diode and the charactron that will show one by one, just can reach the effect that a lot of light emitting diodes and charactron show simultaneously.At first show charactron, when showing individual position, the I/O mouth that section connected that the seven segment digital tubes that will show will show is made as low level, to connect a transistor base of position again and be made as high level, promptly the section that will show lighted, turn off all demonstrations after a period of time again, show ten of charactron again, show all charactrons and light emitting diode successively, under the circulation that does not stop shows, reach the purpose that shows simultaneously.In procedure for displaying, do not carry out key scan, only do demonstration, after having shown, the base stage of gating triode Q1, Q2, Q3, Q4, Q5 all is made as low level, triode ends, and promptly all charactrons and light emitting diode all do not work, at this moment, only do key scan, since the time compole short, visually with in the reaction of staff all react and does not come over, therefore reach the purpose that demonstration and button carry out simultaneously.
As shown in Figure 4, be the power panel circuit theory diagrams of embodiment.41 is the bridge rectifier part, alternating current 220V is input to again the input of three terminal regulator by diode rectification by transformer; The 42 5V power supplys for power panel provide circuit and buzzer, temperature sensor importation circuit; 43 is the relay part, is used for controlling the power of chafing dish; 44 is temperature sensor section, is used for gathering in real time the temperature at the bottom of chafing dish pot courage.
As shown in Figure 4, power panel comprises temperature collection circuit 44, heat-generating disc electronic switching circuit 43, DC power supply circuit 41,42 and warning circuit 42, and power panel and control panel are provided with interconnected connection jaws JP.DC power supply circuit 41,42 comprises current rectifying and wave filtering circuit and three terminal regulator U2, and it is the 12V alternating voltage by the transformer step-down that civil power exchanges J1J2, becomes direct current through bridge rectifier filter circuit, again through three terminal regulator U2 output DC source+5V.The output of DC power supply circuit is provided with two isolating diode D7, D8, be provided with an isolating diode D8 between the dc power supply terminal VDD of the output of DC power supply circuit 41 and single-chip microcomputer, be provided with another isolating diode D7 between the dc power supply terminal of the output of DC power supply circuit 41 and temperature collection circuit 44.Heat-generating disc electronic switching circuit 43 comprises relay J K1 and triode Q1, relay control mouthful PA1 output switch control signal to the triode Q1 base stage of single-chip microcomputer U1 controls triode Q1 conducting or ends, the coil of relay J K1 is connected on emitter circuit or the collector circuit of triode Q1, the civil power that the switch contact of relay J K1 is connected on heat-generating disc exchanges among the tie-in line J1J4, the power interface of heat-generating disc connects J2J4, and civil power exchanges connection J1J2, by opening of control relay JK1, fashionable the outage of recently controlling heat-generating disc, conduction time ratio, and then control chafing dish heating power.Temperature collection circuit comprises thermistor TEMP1, divider resistance R5 and current-limiting resistance R4, thermistor TEMP1 is a temperature sensor, be connected between the dc power supply terminal and ground of temperature collection circuit after thermistor TEMP1 and the divider resistance R5 series connection, the tie point of thermistor TEMP1 and divider resistance R5 is connected the temperature acquisition input AD mouth PA0 of single-chip microcomputer U1 through current-limiting resistance R4, thermistor TEMP1 is located in the temperature detector 14, its line inserts socket JP1, is used for gathering in real time chafing dish pot courage temperature at 7 ends.Warning circuit 42 comprises buzzer U and capacitor C 8, is connected between the buzzing delivery outlet PC3 and ground of single-chip microcomputer U1 after buzzer U and capacitor C 8 series connection.
Single-chip microcomputer is gathered temperature parameter at the bottom of chafing dish pot courage by temperature collection circuit, carries out the adjustment of relay opening and closing state according to this, and then carries out the adjustment of heat-generating disc energising, outage, just controls the chafing dish heating power.By control chafing dish heating power, realize that to pot courage temperature controlling, its process follow procedure is strict to be carried out.
The utility model embodiment is by for single-chip microcomputer programs, and its function is as follows:
Cook:
According to the best pattern of cooking, prolong preheating time, rice is fully absorbed water, increase and mend the program of cooking a meal, make β starch can be converted into the α starch of the easier absorption of human body fully, make rice mouthfeel better, more Ensure Liquid.After pressing the rice-cooking function key, the indicator lamp of cooking is bright, and charactron dynamically shows flamboyancy, jumps to keeping warm mode after task is finished automatically.
Insulation/pass:
Enter heat insulation function, insulation indicator lamp Chang Liang, charactron shows " bb ", insulation is at 70 ℃, is incubated 12 hours and laggardly goes into the shutdown state.Under heated condition, then enter off-mode, again by entering heat insulation function by " insulation/pass " key.
Chafing dish:
Enter the chafing dish function, chafing dish indicator lamp Chang Liang, charactron shows selected power, presses "+", "-" key, and the user can set up the heating power of chafing dish on their own, is divided into six grades, and 1800W ~ 300W, every 300W are one grade.For the sake of security, add the anti-dry function in program, single-chip microcomputer finds that evaporate to dryness water will jump to off-mode automatically.
Food steamer:
Press the food steamer key, default time is 35 minutes, by "+", "-" key adjusting cooking time capable of circulation, and 30-95 minute.Enter the dynamically demonstration time countdown of culinary art back.Automatically jump to off-mode after finishing.
Heat milk and heating:
By adding hot key, default time is 8 minutes, by "+", "-" key adjusting cooking time capable of circulation, and 5-15 minute.Enter the dynamically demonstration time countdown of culinary art back.Automatically jump to off-mode after finishing.In cooking process, chafing dish can be heated to 100 degree automatically, keeps 100 then and spends the cooking time end.
Pot congee:
By pot congee key, default time is 50 minutes, by "+", "-" key adjusting cooking time capable of circulation, and 45-90 minute.Enter the dynamically demonstration time countdown of culinary art back.Automatically jump to off-mode after finishing.In cooking process, chafing dish can carry out ideal pot congee process automatically, carries out power adjusting in real time according to temperature, guarantees in pot congee process congee to be boiled and does not overflow.
Baoshang:
Press the Baoshang key, default time is 40 minutes, by "+", "-" key adjusting cooking time capable of circulation, and 30-95 minute.Enter the dynamically demonstration time countdown of culinary art back.Automatically jump to off-mode after finishing.In cooking process, chafing dish can carry out desirable Baoshang process automatically, carries out power adjusting in real time according to temperature, and the soup that pot is come out is thick but not greasy, and mouthfeel is better.
Fault self-checking:
After connecting power supply, as normal startup, charactron shows " 0000 ", up to there being function key to press.If run into fault, such as the temperature sensor loose contact, overtemperature etc. can not normally start, and charactron will show: " E1 " is end temperature probe open circuit, and " E3 " is end temperature probe short circuit or overtemperature; " E5 " is the button short circuit, and prompting user detection failure is connected power switch after fault is got rid of and reworked, to reach the purpose of safe handling.
The utility model adopts novel high-accuracy singlechip chip, and is high temperature resistant, can up to 80 the degree working environments under operate as normal.Adopt to quantize temperature control, the timesharing heating mode has low-power consumption, high efficiency energy conservation characteristic.More traditional chafing dish power saving about 30%.
Claims (10)
1. electric chafing dish, comprise shell, heat-generating disc and pot courage that places on the heat-generating disc, it is characterized in that: also comprise temperature detector and chafing dish intelligence control circuit, this chafing dish intelligence control circuit comprises single chip circuit, import with single-chip microcomputer respectively, the key circuit that delivery outlet connects, display circuit, temperature collection circuit, the heat-generating disc electronic switching circuit, and link to each other with foregoing circuit and the direct current power source supplying power circuit, the temperature of temperature detector collection pot courage, and temperature transition is become signal of telecommunication input single-chip microcomputer by temperature collection circuit, the push button signalling of single-chip microcomputer input key circuit, output chafing dish working state signal shows that to display circuit output switch control signal is to heat-generating disc electronic switching circuit control heat-generating disc energising or outage.
2. electric chafing dish according to claim 1, it is characterized in that: the circuit board of described chafing dish intelligence control circuit is divided into control panel and power panel, control panel is the control panel of being located on the shell, comprise single chip circuit, key circuit and display circuit, button and display unit place on the outer wall of shell, power panel is located in the shell, comprises temperature collection circuit, heat-generating disc electronic switching circuit and DC power supply circuit, and power panel and control panel are provided with interconnected connection jaws.
3. electric chafing dish according to claim 1 is characterized in that: the central authorities of described heat-generating disc are provided with through hole, and temperature detector is located in the described through hole, and temperature detector has the spring that makes temperature detector compress pot courage.
4. electric chafing dish according to claim 1 and 2, it is characterized in that: described key circuit comprises a plurality of buttons, the button that is connected to single-chip microcomputer after one end of these a plurality of buttons is connected to each other is read arrival line, be connected a pull-up resistor between this mouthful line and the single-chip microcomputer dc source, the other end of a plurality of buttons is connected to many key scan mouth lines of single-chip microcomputer respectively through the corresponding key current-limiting resistance; Described display circuit comprises indicator lamp and charactron display circuit, described indicator lamp display circuit comprises a plurality of light emitting diodes with a plurality of button correspondences, the negative pole of these a plurality of light emitting diodes is connected to many key scan mouth lines of single-chip microcomputer respectively through the demonstration current-limiting resistance of correspondence, positive level is connected to each other, be provided with a light emitting diode gating triode, the base stage of light emitting diode gating triode connects the light emitting diode gating mouth line of single-chip microcomputer, colelctor electrode connects the single-chip microcomputer dc source, and emitter stage connects the positive pole of light emitting diode; Described charactron display circuit comprises a plurality of charactron display boards, seven sections display lines of a plurality of charactrons and colon display line are connected to eight key scan mouth lines of single-chip microcomputer respectively through the demonstration current-limiting resistance of correspondence, be provided with a plurality of charactron gating triodes, the base stage of a plurality of charactron gating triodes connects many bar digit codes pipe gating mouth line of single-chip microcomputer respectively, colelctor electrode all connects the single-chip microcomputer dc source, and emitter stage connects the position choosing end of a plurality of charactrons respectively.
5. electric chafing dish according to claim 1 and 2 is characterized in that: described DC power supply circuit comprises current rectifying and wave filtering circuit and three terminal regulator, and civil power exchanges and becomes direct current through current rectifying and wave filtering circuit, again through three terminal regulator output DC source.
6. electric chafing dish according to claim 5, it is characterized in that: the output of described DC power supply circuit is provided with two isolating diodes, be provided with an isolating diode between the output of DC power supply circuit and the dc power supply terminal of single-chip microcomputer, be provided with another isolating diode between the output of DC power supply circuit and the dc power supply terminal of temperature collection circuit.
7. electric chafing dish according to claim 1 and 2, it is characterized in that: described heat-generating disc electronic switching circuit comprises relay and triode, relay control mouthful output switch control signal to the transistor base of single-chip microcomputer is controlled the triode conducting or is ended, the coil of relay is connected on the emitter circuit or the collector circuit of triode, and the civil power that the switch contact of relay is connected on heat-generating disc exchanges in the tie-in line.
8. electric chafing dish according to claim 1 and 2, it is characterized in that: described temperature collection circuit comprises thermistor, divider resistance and current-limiting resistance, be connected between dc power supply terminal and the ground after thermistor and the divider resistance series connection, the tie point of thermistor and divider resistance is imported the AD mouth through the temperature acquisition that current-limiting resistance is connected single-chip microcomputer, and thermistor is located in the temperature detector.
9. electric chafing dish according to claim 1 and 2 is characterized in that: described chafing dish intelligence control circuit also comprises the warning circuit that is connected with single-chip microcomputer input, delivery outlet.
10. electric chafing dish according to claim 9 is characterized in that: described warning circuit comprises buzzer and electric capacity, is connected after buzzer and the capacitances in series between the buzzing delivery outlet and ground of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202386307U CN201536980U (en) | 2009-11-06 | 2009-11-06 | Electric chafing dish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202386307U CN201536980U (en) | 2009-11-06 | 2009-11-06 | Electric chafing dish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201536980U true CN201536980U (en) | 2010-08-04 |
Family
ID=42588430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202386307U Expired - Fee Related CN201536980U (en) | 2009-11-06 | 2009-11-06 | Electric chafing dish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201536980U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458557A (en) * | 2012-05-31 | 2013-12-18 | 海洋王照明科技股份有限公司 | LED drive control circuit and LED lamp |
| CN103549872A (en) * | 2013-11-11 | 2014-02-05 | 宁波无极电器有限公司 | Electric cooker |
| CN107198454A (en) * | 2016-06-21 | 2017-09-26 | 九阳股份有限公司 | A kind of cooking apparatus and its method for heating and controlling |
-
2009
- 2009-11-06 CN CN2009202386307U patent/CN201536980U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458557A (en) * | 2012-05-31 | 2013-12-18 | 海洋王照明科技股份有限公司 | LED drive control circuit and LED lamp |
| CN103549872A (en) * | 2013-11-11 | 2014-02-05 | 宁波无极电器有限公司 | Electric cooker |
| CN103549872B (en) * | 2013-11-11 | 2015-12-30 | 熊翠英 | Electric cooker |
| CN107198454A (en) * | 2016-06-21 | 2017-09-26 | 九阳股份有限公司 | A kind of cooking apparatus and its method for heating and controlling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20111106 |