CN2250617Y - Micro computer fuzzy control electric cooker - Google Patents
Micro computer fuzzy control electric cooker Download PDFInfo
- Publication number
- CN2250617Y CN2250617Y CN 95227924 CN95227924U CN2250617Y CN 2250617 Y CN2250617 Y CN 2250617Y CN 95227924 CN95227924 CN 95227924 CN 95227924 U CN95227924 U CN 95227924U CN 2250617 Y CN2250617 Y CN 2250617Y
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- China
- Prior art keywords
- interlayer
- pot
- fuzzy control
- triode
- pot body
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- Expired - Fee Related
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Abstract
The utility model relates to an electric rice cooker of microcomputer fuzzy control, which is composed of a cooker cover of an interlayer and a cooker body. The electric rice cooker of microcomputer fuzzy control is characterized in that the center of the interlayer of the cooker cover is provided with a temperature sensor. Heat-insulation heating wires of the top and the side wall are respectively arranged inside the interlayer of the cooker cover and the interlayer of a cooker body wall. A protective circuit which has dual-function of low voltage detection and memory protection of power down is arranged inside a control circuit simultaneously. Cooking of a plurality of functions can be completed by the electric rice cooker of microcomputer fuzzy control, and the control of optimal timing in cooking can be realized as well.
Description
The utility model relates to the electric rice cooker in the household electrical appliance, say with having more, be a kind of by pot cover and the pot body constitute, described pot cover and pot body are interlayer, be provided with bottom heat-generating disc, bottom temp transducer in the bottom of pot body interlayer, the pot body leaves the microcomputer fuzzy control electric rice cooker of switch, heat insulation and controller fixed mount and microcomputer controller.
Because its structure is limit, there is following weak point in microcomputerized control electric rice cooker of the prior art:
1, temperature sensor only is arranged on the bottom, but, general primary heater (bottom heat-generating disc) is placed on the bottom, therefore in gastronomical process, Temperature Distribution in the pot is extremely inhomogeneous, only depend on the temperature sensor in bottom, be difficult to the concrete condition of food in the pot is made judgement accurately, cause the difficulty in the control.
2, heat insulation function also is to realize that by the heat-generating disc that is arranged on the bottom during insulation, the same distributed pole of kettle temperature is inhomogeneous, and heat insulation effect is not good.
3, control circuit for the electrical network low-voltage without any defencive function.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, provide more reasonable on the arranging of a kind of setting, warm keeping element at temperature sensor, to realize the control of the best duration and degree of heating, make that soft good to eat, the gruel of rice is not rare not to overflow, cook the microcomputer fuzzy control electric rice cooker of science more; Its purpose also is to provide a kind of microcomputer electric pot for cooking rice that is provided with low-voltage and power down protection circuit, to prolong its useful life, save electric energy, to improve functional reliability.
The purpose of this utility model is achieved through the following technical solutions.
The utility model is made of pot cover and pot body, and described pot cover and pot body are interlayer, and heat-generating disc, bottom temp transducer, pot body leave switch, heat insulation and controller fixed mount and microcomputer controller bottom being provided with in the bottom of pot body interlayer.
Of the present utility model being characterised in that:
(1), head temperature transducer R is set
T1, this top temperature is sent out transducer and is enclosed in admittedly in the chuck, and chuck is fixed on pot cover central authorities, and its bottom is stretched in the pot, and bottom end face is concordant with pot cover internal layer end face;
(2), in pot body sidewall interlayer, and side heat retaining and exothermal silk H is set respectively in the pot cover interlayer
2With top heat retaining and exothermal silk H
3
(3), in described controller, be provided with that low-voltage detects, the power down protection circuit, this circuit is by resistance R
4, R
5, voltage-stabiliser tube Z
1, triode BG
3With capacity cell C
6Constitute resistance R
4One termination electrical network, the other end is by voltage-stabiliser tube Z
1To triode BG
3Base stage, capacitor C
6Be connected across triode BG
3Between collector electrode and the emitter, triode BG
3Collector electrode is connected to main control chip IC
1Middle fracture P11/N1.
The utility model is compared prior art and is had following advantage:
1, the utility model utilization top, two temperature sensors in bottom, simultaneously the quality and quantity of food in the pot is carried out reasoning, can determine best cooking curve, realize best duration and degree of heating control, better effects if--soft good to eat, the gruel of rice is not dense not rarely not to overflow, and makes the cooking more scientific.Can bring simultaneously the advantage of saves energy.
2, the utility model utilization top, sidepiece heat retaining and exothermal silk and bottom heat-generating disc under the control of microcomputer circuit, are incubated together, make kettle temperature more even, and can realize being incubated in 24 hours and never degenerate.
3, the utility model can be realized under-voltage protection and power-failure memory dual-use function simultaneously by simple protective circuit of design, thereby prolongs device useful life, improve its functional reliability.
4, the utility model can carry out meal, congee, soup, stew, the cooking of multiple function such as steaming.
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model head temperature transducer R
T1Position view.
Accompanying drawing 3 is the utility model controller circuitry schematic diagram.
Accompanying drawing 4 is the utility model profile schematic diagram.
By the following examples, in conjunction with the accompanying drawings, the utility model is further described.
Embodiment:
Referring to Fig. 1, adopt the pot cover and the pot body of sandwich, in the bottom interlayer of internal layer pot body 1 and outer pot body 2, be provided with bottom heat-generating disc 10, bottom temp transducer R
T29, spring 8, pot body leave switch 7, end heat-insulation layer 4, heat insulation and controller fixed mount 5 and controller 6.In the sidewall interlayer of internal layer pot body 1 and outer pot body 2, H is set
2Side heat retaining and exothermal silk 11, and make insulation sidewall 3 with insulation material, in cover structure as shown in the figure, row has H in its interlayer
3Top heat retaining and exothermal silk 12, and make top thermal insulation layer 13 with insulation material.
Referring to Fig. 2, in the present embodiment, R
T1Admittedly be enclosed in the chuck 14 as head temperature transducer 17, chuck 14 is fixed on pot cover central authorities, and its bottom is stretched in the pot, and bottom end face is concordant in pot cover internal layer end face.
Referring to Fig. 3, IC
1Be main control chip KS57C4004, temperature sensor comprises head temperature transducer R
T1With bottom temp transducer R
T2In the present embodiment, transducer R at the bottom of the temperature of top
T1Be arranged on chip IC
1The P21/AD mouth, main controller IC
1Comprehensive R
T1And R
T2The temperature acquisition signal, at button K
1, K
2, K
3, K
4, and K
5Combination selection under cook, by relay J ZC control primary heater H
1(bottom heat-generating disc), controllable silicon SCR control top, side heat retaining and exothermal silk H
3And H
2, at end of cooking and when breaking down, sending warning by buzzer, cooking operating state, time, fault-signal are respectively by luminous tube LED
1～LED
10Shown.
In the circuit shown in Fig. 3, side heat retaining and exothermal silk H
2With top heat retaining and exothermal silk H
3Back in parallel and main heater strip H
1Common series connection, and in its electric power loop, controllable silicon SCR is set, the control termination triode BG of controllable silicon SCR
1Collector electrode, its base stage meets main control chip IC
1The KS/P6 mouth.In heating process, relay J ZC adhesive, controllable silicon SCR is ended, at this moment, main heater strip H
1Directly be connected on the supply voltage H
2, H
3No current flows through; After entering keeping warm mode, relay J ZC dead electricity is turn-offed, and controllable silicon SCR is according to the temperature conducting in the pot or end.When kettle temperature is lower than holding temperature, SCR conducting, H
2, H
3Back in parallel and H
1Series connection makes evenly heating all around in the pot, and when kettle temperature reached holding temperature, SCR ended, and the heating wire power supply is cut off.In the present embodiment, keeping warm mode can make kettle temperature remain on 71 ℃ ± 2 ℃, and kettle temperature is evenly distributed.
As shown in Figure 3, low-voltage detection, power down protection circuit are by resistance R
4, R
5, voltage-stabiliser tube Z
1, triode BG
3With capacity cell C
6Constitute R
4One termination electrical network, the other end is by voltage-stabiliser tube Z
1To BG
3Base stage, capacitor C
6Be connected across BG
3Between the collector and emitter, its collector electrode output is connected to main control chip IC
1Middle fracture P11/N1.Under normal circumstances, R
4One end has the sine wave of a low pressure 50HZ, at voltage-stabiliser tube Z
1Effect under, BG
3With the frequency open and close of 50Hz, therefore in capacitor C
6Two ends produce the square wave of 50Hz, as IC
1The interrupt signal of middle fracture P11/N1.When line voltage is lower than 165V, R
4On voltage amplitude low to making BG
3All the time be in off-state, no interrupt signal in the 25ms, therefore main control chip turn-offs JZC, make its unlikely when low-voltage because of the frequent break-make of undertension, thereby be protected, increase the service life.The realization of power-failure memory defencive function is to utilize triode BG
3End for a long time, at this moment, main control chip IC
1Enter the power saving operating state, preserve the working site.When power system restoration, wake up automatically, recover operate as normal.In the present embodiment, function shows employing scatter-type luminous tube, on the display floater 15 of corresponding each luminous tube relevant position (as shown in Figure 4), the Chinese character piece 16 that transparent material is made is set, and covers diffusion sheet on luminous tube.A kind of like this display mode of utilizing luminous tube to light word, not only whole word is luminous evenly, font is clear, and state intuitive display, clear.
Claims (4)
1, a kind of microcomputer fuzzy control electric rice cooker is made of pot cover and pot body, and described pot cover and pot body are interlayer, are provided with bottom heat-generating disc (10), bottom temp transducer R in the bottom of pot body interlayer
T2(9), the pot body leave switch (7), heat insulation and controller fixed mount (5) and microcomputer controller (6), it is characterized in that:
(1), head temperature transducer R is set
T1(17), this head temperature transducer (17) is enclosed in the chuck (14) admittedly, and chuck (14) is fixed on pot cover central authorities, and its bottom is stretched in the pot, and bottom end face is concordant with pot cover internal layer end face;
(2), in pot body sidewall interlayer. and side heat retaining and exothermal silk H is set respectively in the pot cover interlayer
2(11) and top heat retaining and exothermal silk H
3(12);
(3), in described controller, be provided with that low-voltage detects, the power down protection circuit, this circuit is by resistance R
4, R
5, voltage-stabiliser tube Z
1, triode BG
3With capacity cell C
6Constitute resistance R
4One termination electrical network, the other end is by voltage-stabiliser tube Z
1To triode BG
3Base stage, capacitor C
6Be connected across triode BG
3Between collector electrode and the emitter, triode BG
3Collector electrode is connected to main control chip IC
1Middle fracture P
11/ N
1
2, microcomputer fuzzy control electric rice cooker according to claim 1, it is characterized in that described controller, its function shows employing scatter-type luminous tube, on the display floater (15) of corresponding each luminous tube relevant position, the Chinese character piece (16) that transparent material is made is set, and on described luminous tube, is coated with diffusion sheet.
3, microcomputer fuzzy control electric rice cooker according to claim 1 is characterized in that described head temperature transducer R
T1Be arranged on main control chip IC
1The P21/AD mouth.
4, microcomputer fuzzy control electric rice cooker according to claim 1 is characterized in that described side heat retaining and exothermal silk H
2(11) and top heat retaining and exothermal silk H
3(12) back in parallel and main heater strip H
1Common series connection, and in its electric power loop, controllable silicon SCR is set, the control termination triode BG of described controllable silicon SCR
1Collector electrode, its base stage meets main control chip IC
1The KS1/P6 mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227924 CN2250617Y (en) | 1995-12-06 | 1995-12-06 | Micro computer fuzzy control electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227924 CN2250617Y (en) | 1995-12-06 | 1995-12-06 | Micro computer fuzzy control electric cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2250617Y true CN2250617Y (en) | 1997-03-26 |
Family
ID=33873646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227924 Expired - Fee Related CN2250617Y (en) | 1995-12-06 | 1995-12-06 | Micro computer fuzzy control electric cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2250617Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525254A (en) * | 2012-01-18 | 2012-07-04 | 浙江苏泊尔家电制造有限公司 | IH (Indirect Heating) electric rice cooker with power failure detection |
| CN103767555A (en) * | 2014-01-24 | 2014-05-07 | 广东福尔电子有限公司 | Heat insulation plate of electric rice cooker |
| CN103792860A (en) * | 2013-07-31 | 2014-05-14 | 珠海优特电力科技股份有限公司 | Intelligent pot cover lifting button-based monitoring method, intelligent pot cover lifting button, and pot cover |
| CN104688011A (en) * | 2015-03-20 | 2015-06-10 | 王利 | Integrated intelligent light-wave cooker with function of precise temperature control |
-
1995
- 1995-12-06 CN CN 95227924 patent/CN2250617Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525254A (en) * | 2012-01-18 | 2012-07-04 | 浙江苏泊尔家电制造有限公司 | IH (Indirect Heating) electric rice cooker with power failure detection |
| CN102525254B (en) * | 2012-01-18 | 2014-08-13 | 浙江苏泊尔家电制造有限公司 | IH (Indirect Heating) electric rice cooker with power failure detection |
| CN103792860A (en) * | 2013-07-31 | 2014-05-14 | 珠海优特电力科技股份有限公司 | Intelligent pot cover lifting button-based monitoring method, intelligent pot cover lifting button, and pot cover |
| CN103792860B (en) * | 2013-07-31 | 2016-05-11 | 珠海优特电力科技股份有限公司 | A kind of monitoring method and Intelligent cooker lid of carrying button based on Intelligent cooker lid carried button, pot cover |
| CN103767555A (en) * | 2014-01-24 | 2014-05-07 | 广东福尔电子有限公司 | Heat insulation plate of electric rice cooker |
| CN104688011A (en) * | 2015-03-20 | 2015-06-10 | 王利 | Integrated intelligent light-wave cooker with function of precise temperature control |
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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 |