CN1687650A - Sound controlled electric heating apparatus - Google Patents
Sound controlled electric heating apparatus Download PDFInfo
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- CN1687650A CN1687650A CN 200510064442 CN200510064442A CN1687650A CN 1687650 A CN1687650 A CN 1687650A CN 200510064442 CN200510064442 CN 200510064442 CN 200510064442 A CN200510064442 A CN 200510064442A CN 1687650 A CN1687650 A CN 1687650A
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Abstract
The invention is the acoustic control electrothermal device, and belongs to the electrothermal cooking instrument in kitchen and is the invention of the utilization of acoustic control technology. Set a sound wave control device at the input end of the control circuit of the electrothermal device and the sound wave control device receives the boiling signal and converses the signal into the electric signal and input it into the power adjuster; the adjuster adjusts the heating power based on the electric signal and realizes the automatic closed-loop control of the heating power. The invention has simple structure, precise control and low cost.
Description
Technical field:
The invention belongs to electric heating cooking utensil for kitchen use, is sound control technique application product patent.
Background technology:
The electric heating appliance of the electromagnetic oven that culinary cuisine is used, infrared electric furnace class has entered China consumer's family in a large number, and they mainly are to be used for doing the culinary art of boiling class, and such electric heating appliance is made up of power governor, heating source etc. usually.Steaming, when boiling (stewing) food, reach more satisfactory cuisines effect, often needing the cooking process of " first big fire, the little fire in back ".How reach the heating power of heating source is carried out closed loop control by control to kettle temperature, be the power control point promptly with water generation saturation boiling phenomenon in the pot, automatically regulating heating power and make interior being changed over to by saturation boiling of pot keep boiling, is the key link that realizes the culinary art automation.Existing electric heating appliance then can't be according to the kind of food and individual's taste demand, after making the interior water of pot (and food) saturation boiling with " big fire " (heating with full power) earlier, automatically change " little fire " (small-power heating) again over to and make it to keep boiling, be that prior art can not be controlled heating power implementation closed loop automatically according to the boiling situation of water in the pot, they are on electronic circuit or for referencial use with the temperature in the bottom of a pan, or with the time of setting be foundation, the control program that plurality of fixed is set is regulated the heating power of heating source by power governor.Need explanation, the temperature in the bottom of a pan and pot temperature of interior water boiling because hot pipeline can not form stable, a quantifiable functional relation between the two, are set directly at temperature sensor in the pot based on the reason of cleaning is also inconvenient.Control heating power with the mode of setting-up time and have great blindness especially.The existence of above-mentioned reason makes the power automatic control mode of prior art both inaccurate also unstable, causes often taking place in the cooking process congee and boils that soup overflows or the phenomenon of food cooking duration and degree of heating deficiency.Therefore, on the basis of existing technology, sound control technique is introduced in the electric heating cooking utensil, had positive meaning undoubtedly.China ZL96109066.9 patent of invention has provided a kind of technical scheme of sound-controlled computerized pressure cooker, but its acoustical generator structure and computer program are comparatively complicated, range of application does not relate to stress-free cooking apparatus yet, does not relate to the electric heating appliance of electromagnetic oven, infrared electric furnace class yet.
In addition, do not see other relevant data of sound control technique being introduced the culinary cuisine utensil as yet.
Summary of the invention:
At the deficiency of prior art heating power control mode, the present invention uses " acoustic control " technology, the heating power of electric heating appliance is carried out closed loop control automatically.
The present invention proposes, input at the electric heating appliance control circuit is provided with a sound wave controlled mechanism, be input in the power governor after being received extraneous acoustic signals and converted thereof into the signal of telecommunication by the acoustic receiver in this mechanism, power governor serves as to adjust the heating power that point changes heating source with this signal of telecommunication then.
The present invention proposes, after electric heating appliance is heated to saturation boiling to the water in the pot (and food) with total power, this boiling can be transformed into acoustic signals and send, this signal can start sound wave controlled mechanism and power governor work, to change the heating power of heating source.In the environment for use of electric heating appliance, exist other sound inevitably, as: the rotation sound of lampblack absorber, people's voice, beat knock or the like, if sound wave controlled mechanism does not possess the function to acoustic signals identification screening, all acoustic signals are all with no options received and are input in the power governor, certainly will cause the misoperation of power adjusting.For making power governor can receive the signal of telecommunication that characterizes saturation boiling like clockwork, eliminate of the interference of other noise signal to the power precise control, a filter course should be set in sound wave controlled mechanism, also claim the signal arbiter, the signal of telecommunication after the conversion is further processed.In the signal arbiter, store the information such as time period of audible frequency, intensity, time span and the expectation sounding of saturation boiling signal in advance.After acoustic receiver is come signal of telecommunication conveying, the function of this arbiter is that every information of the signal of telecommunication and prestored information are done the differentiation of contrast formula, the signal of telecommunication that Frequency, Intensity, And Time with the boiling signal is not matched filters out, and the signal of telecommunication that characterizes saturation boiling is imported in the power governor.Power governor is that power is adjusted point with the signal of telecommunication of input then, and heating power is adjusted to small-power (this small-power is the empirical value of setting in advance according to the culinary art needs) automatically from total power.
The present invention proposes, and an amplifier also should be set in the sound wave controlled mechanism.Because acoustic signals is after conversion, filtering supervisor arrival power governor, signal amplitude is often very weak also unstable, influences the sensitivity of power governor.For making the signal of telecommunication obtain enough amplitudes, an amplifier is set behind the signal arbiter usually, will amplify by the signal of telecommunication of filter course, be input in the power governor again after the shaping.After amplifier also can be arranged on acoustic receiver,, then be input in the signal arbiter amplification, the shaping earlier of the signal of telecommunication after the conversion.
The present invention proposes, and a time controller is set on control circuit, and this controller is opened when power changes automatically, is cooked by its end of cutting off the electricity supply behind the arrival preset time.
The present invention proposes, and for water saturation boiling phenomenon in the pot is become acoustic signals, an acoustical generator can be set on cooking pot tool.Under the water vapour that this acoustical generator is sprayed when water saturation is seethed with excitement in pot drives, send specific acoustic signals---the boiling signal, the filter course that has only this signal could pass through sound wave controlled mechanism arrives in the power governor, and changes the heating power of heating source thus.Specific acoustic signals refers to: acoustical generator sends design parameters such as the intensity of sound, spectrum signature, duration length of acoustic signals, and is identical with the information that stores in the signal arbiter.
In sum, sound controlled electric heating apparatus among the present invention, comprise power governor, heating source, it is characterized in that: the input at control circuit is provided with a sound wave controlled mechanism, this mechanism is input in the power governor after converting the voice signal that receives to the signal of telecommunication, and power governor serves as to adjust the heating power that point changes electric heating appliance with this signal of telecommunication then.
Sound wave controlled mechanism also comprises amplifier and signal arbiter, also a time controller can be set on control circuit.
Be arranged on the acoustical generator on the pan among the present invention, can be in pot send acoustic signals during the water boiling, this acoustic signals is a signal specific, can filter course arrival power governor by acoustic control mechanism in.
In the existing electric heating appliance of China market, nearly all be provided with the circuit board of forming by electronic chip, wherein have the size of pair power output to control (power control), also have the time of pair power output to control (time control).The sound wave that sends with acoustical generator that the present invention proposes starts sound wave controlled mechanism, make formation sound and electric control connection between cooking pot tool and the electric heating appliance, realize the automatic technical scheme of controlling of the closed loop of heating power by control boiling, with the plurality of fixed control program is set in control circuit, according to the temperature sensor signal or the preset time in the bottom of a pan, the prior art that heating power is controlled is automatically compared has outstanding technological progress.Be that thermal source is done boiling class when culinary art with the electric heating appliance, the temperature in the bottom of a pan and pot temperature of interior water generates saturation boiling, reason owing to the heat transmission, can not form between the two one stable, quantifiable functional relation, based on the reason of cleaning also inconvenience temperature sensor is set directly in the pot, therefore, the heating power of prior art is temperature or the preset time according to the bottom of a pan, rather than automatically adjust according to the boiling situation of water in the pot, thereby these automatic control modes are both inaccurate also unstable, cause congee often takes place in the cooking process to boil that soup overflows or the phenomenon of food cooking duration and degree of heating deficiency.The present invention then is the acoustic signals that sends according to after the water saturation boiling in the pot, rather than according to the temperature in the bottom of a pan or preset time heating power is controlled.Physical phenomenon---the saturation boiling that water in the pot is taken place at a certain temperature, change acoustic signals into by the acoustical generator on the cooking pot tool, be input in the power governor after the sound wave controlled mechanism that this signal is set at electric heating appliance control circuit input receives and handles, heating power controlled automatically with this.The present invention organically combines boiling situation and the heating power in the pot, solved the functional relationship of temperature instability when prior art is seethed with excitement with the interior water saturation of pot owing to the temperature in the bottom of a pan effectively, cause power to control an inaccurate difficult problem, also overcome blindness with the method control heating power of the scheduled time.The present invention has benefited from the little characteristics of electric heating appliance thermal inertia, makes the adjusting of power very sensitive.As long as one saturation boiling takes place, acoustical generator just sends the boiling signal at once in the pot, and in the moment of receiving the boiling signal, electric heating appliance is promptly adjusted to the small-power heating of keeping boiling from heating with full power, makes food that a ripe mashed tasty cooking process be arranged.The present invention controls power and time control combines, and when having realized boiling control the time is also controlled, and not only energy efficient also can avoid congee to boil the phenomenon generation that soup overflows.This according to the boiling situation to the control mode that heating power automatically adjusts, realized the culinary art automation of real meaning, can alleviate people's housework greatly.Sound wave controlled of the present invention mechanism can be applicable to various with electronic chip control, be on the kitchen electric heating appliance of power supply with the civil power, be not only applicable to electromagnetic oven class that the magnetic conduction pan is heated, be applicable to the infrared electric furnace class that multiple pans such as aluminum pot, stainless-steel pan, iron pan, buckpot, porcelain pot, boccaro pot, glass boiler are heated yet.In addition, send the boiling signal owing to pressure cooker also can drive acoustical generator when carrying out pressure cooking, so the present invention can be applicable on the pressure cooker also.Sound receiver of the present invention and amplifier can be assembled by existing electroacoustic components and parts, and the cost that it increased only is the part of prior art control circuit cost.The acoustical generator made from metal or plastics can be arranged on the pot cover of various pans easily.Simple in structure, precise control, with low cost, durable, energy savings are outstanding advantages of the present invention.
Description of drawings:
Fig. 1 is a fundamental diagram of the present invention
Fig. 2 is that acoustical generator is installed in the schematic diagram on the metal pot cover
Fig. 3 is that acoustical generator is installed in the schematic diagram that nonmetal pot covers
Fig. 4 is that acoustical generator is installed in the schematic diagram on the pressure cooker cover
Fig. 5 is the electroacoustic connection side block diagram of acoustical generator and acoustic control mechanism
4. pots of bodies of 1. pot cover 2. Button for cooker lid, 3. acoustical generators, 5. electric heating appliances, 6. sound wave controlled mechanisms, 7. acoustic receivers, 8. signal arbiters, 9. amplifiers, 10. power governors, 11. time controllers, 12. heating sources, 13. spring loaded pressure valves, 14. valve bodies, 15. spools, 16. springs among the figure
In Fig. 1, illustrate: cooking pot tool, electric heating appliance 5, sound wave controlled mechanism 6.Cooking pot tool comprises: pot cover 1, Button for cooker lid 2, pot body 4; Electric heating appliance 5 comprises: power governor 10, time controller 11, heating source 12; The sound wave controlled mechanism 6 that is illustrated in Fig. 1 in the frame of broken lines comprises: acoustic receiver 7, signal arbiter 8, amplifier 9.Acoustical generator 3 can be arranged on the passage place of pot cover 1, usually acoustical generator 3 is arranged in the Button for cooker lid 2.Acoustical generator 3 is connected with sound wave between the sound wave controlled mechanism 6 among Fig. 1, and "～" illustrated with symbol.
Illustrate in Fig. 2: in the Button for cooker lid 2 that is made by three metal parts, acoustical generator 3 is arranged on the passage place of pot cover 1.
In Fig. 3, illustrate: a little crown cap is set on the hand-held button of nonmetal pot cover 1 forms Button for cooker lid 2, acoustical generator 3 is set in the little crown cap.Be equipped with the passage of using for acoustical generator 3 sounding on pot cover 1 and the little crown cap.
Illustrate in Fig. 4: spring loaded pressure valve 13 is set on the passage in Button for cooker lid 2, and acoustical generator 3 is arranged on the pressure exhaust hole of spring loaded pressure valve 13.Spring loaded pressure valve 13 comprises: valve body 14, spool 15, spring 16.
In Fig. 5, illustrate: the block diagram of sound wave controlled mechanism 6 and electric heating appliance 5 control circuits.For sound wave is connected, "～" symbol signal sound wave among the figure connects between acoustical generator 3 and the sound wave controlled mechanism 6; The frame of broken lines signal sound wave controlled mechanism 6 on Fig. 5 right side comprises: acoustic receiver 7, signal arbiter 8, amplifier 9.The control circuit of the frame of broken lines signal electric heating appliance 5 in Fig. 5 left side comprises: power governor 10, time controller 11, heating source 12.Control circuit in sound wave controlled mechanism 6 and the electric heating appliance 5 is that circuit is connected.
The specific embodiment:
Concrete enforcement comprises three parts such as cooking pot tool, electric heating appliance 5, sound wave controlled mechanism 6, and wherein cooking pot tool comprises pot cover 1, Button for cooker lid 2, pot body 4 etc.Electric heating appliance 5 comprises: power governor 10, time controller 11, heating source 12 etc.Sound wave controlled mechanism 6 comprises: acoustic receiver 7, signal arbiter 8, amplifier 9 etc.Acoustical generator 3 is arranged on the venthole position (or go up or down) of pot cover 1, and all the other relevant technical units are as outlines such as the action button on the electric heating appliance 5, function indications.
Cooking pot tool should be cooperated selection with electric heating appliance 5 in the enforcement, when selecting electromagnetic oven to be electric heating appliance 5, the bottom of a pan of cooking pot tool should possess magnetic conductivity; And when selecting infrared electric furnace to be electric heating appliance 5, can there be polytype cooking pot tool to match with it.The pot cover 1 of cooking pot tool and the airtight requirement that is combined with of pot body 4, purpose are to reduce steam to leak between pot cover 1 and pot body 4, and the big multipotency of common cooking pot tool satisfies this requirement.
Embodiment 1, and selecting maximum heating power for use is that the electromagnetic oven of 1000W is an electric heating appliance 5, and selecting pot mouthful interior diameter for use is that the flat magnetic stainless steel pot of 22cm is a cooking pot tool.Combined reference Fig. 2 of acoustical generator 3 and Button for cooker lid 2, Button for cooker lid 2 can adopt corrosion resistant plate to make, and acoustical generator 3 can be made of corrosion resistant plate with reference to the boiling water whistle on the kettle.Also Button for cooker lid 2 and acoustical generator 3 can be designed to one, its specification requirement is when the saturation boiling phenomenon takes place in the pot, acoustical generator 3 can send the boiling acoustic signals of sufficient intensity, promptly is converted to by the saturation boiling phenomenon in the cooking pot tool to meet the acoustic signals that sound wave controlled mechanism 6 requires.Sound wave controlled mechanism 6 comprises: acoustic receiver 7, signal arbiter 8, amplifier 9.Wherein acoustic receiver 7 can adopt polytype finished product microphone device, adopts Electret condenser microphone that acoustic signals is converted to the signal of telecommunication here.The signal arbiter 8 that is provided with in acoustic receiver 7 backs is made up of filtering and identification two parts.Filtering part can select for use ceramic filter to make, when the sound wave signal of telecommunication by the time, it is elimination interfering noise signal wherein from the frequency spectrum at first.The signal of telecommunication of process filtering is transported to identification division and remakes once screening.Identification division is the many-sides such as time window that intensity, spectrum signature, duration from the signal of telecommunication and signal occur, and gives comparison, finishes signal screening after limiting.Need explanation: in the identification to signal, the most effective practical again recognition methods is that signal is carried out intensity identification.Main points are to improve the intensity of phonation of acoustical generator 3, make it to be higher than noise intensity, because other indoor sound, as continuous type noises such as people's voice, smoke exhaust ventilator sound, its intensity of sound is limited.For the high intensity noise of indoor and outdoor moment generation, can promptly use delay circuit filtering high-intensity noise jamming of moment by the duration differentiation of signal arbiter 8 from signal.Through the filtration and the garbled signal of telecommunication of signal arbiter 8, after entering into amplifier 9 and being amplified, lead up to the power governor 10 of electric heating appliance 5 by shaping, heating power is regulated, the culinary art situation is transferred to by saturation boiling keep boiling; Another road begins the time of keeping boiling is controlled by time controller 11, reach preset time after, finish culinary art by its heating source 12 that cuts off electric heating appliance 5 automatically.
The using method of embodiment 1 is as follows: after putting into food and water and build pot cover 1 in pot body 4, cooking pot tool is placed on electric heating appliance 5---on the electromagnetic oven, connect power supply after choosing required cooking time according to food variety, electromagnetic oven just begins with total power cooking pot tool to be heated.When the temperature in the pot body 4 rise to make water saturation boiling after, be subjected to the driving of water vapour, acoustical generator 3 sends acoustic signals, be arranged on the interior acoustic control mechanism 6 of electromagnetic oven with after this signal reception and handling, by control circuit heating power is regulated, the interior culinary art situation of pot is entered from saturation boiling keep boiling.Meanwhile, time controller 11 is opened, and just cuts off the electricity supply automatically after the predetermined culinary art concluding time arrives.Need explanation: keep the magnitude of power of boiling, be product before dispatching from the factory, prevent during by culinary art that soup from boiling that requirement that congee overflows sets, selected about 200W usually, also can be provided with from gear selecting, set up on their own by the user and keep the required power of boiling.
Claims (6)
1. a sound controlled electric heating apparatus comprises power governor (10), and heating source (13) is characterized in that: the input at control circuit is provided with a sound wave controlled mechanism (6).
2. sound controlled electric heating apparatus according to claim 1 is characterized in that: described sound wave controlled mechanism (6) also comprises a signal arbiter (8).
3. sound controlled electric heating apparatus according to claim 1 and 2 is characterized in that: described sound wave controlled mechanism (6) also comprises an amplifier (9).
4. sound controlled electric heating apparatus according to claim 1 and 2 is characterized in that: a time controller (11) is set on control circuit.
5. sound controlled electric heating apparatus according to claim 3 is characterized in that: a time controller (11) is set on control circuit.
6. acoustical generator that is arranged on the pan, can be in pot send acoustic signals during the water boiling, it is characterized in that: the acoustic signals that this acoustical generator sends is a signal specific, can arrive in the power governor (10) by the filter course as acoustic control mechanism (6) in claim 2 or the 3 or 4 described sound controlled electric heating apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510064442 CN1687650A (en) | 2005-04-18 | 2005-04-18 | Sound controlled electric heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510064442 CN1687650A (en) | 2005-04-18 | 2005-04-18 | Sound controlled electric heating apparatus |
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| CN1687650A true CN1687650A (en) | 2005-10-26 |
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| CN 200510064442 Pending CN1687650A (en) | 2005-04-18 | 2005-04-18 | Sound controlled electric heating apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006041A (en) * | 2013-01-09 | 2013-04-03 | 胡达广 | Voiceprint recognition controlled energy-saving electric cooker |
| CN103096550A (en) * | 2013-01-21 | 2013-05-08 | 董晓波 | Method and device of cooker heating control |
| CN105816056A (en) * | 2016-06-06 | 2016-08-03 | 佛山市顺德区美的电热电器制造有限公司 | Heating equipment and cooking device and cooking method for heating equipment |
| CN109008595A (en) * | 2017-06-08 | 2018-12-18 | 佛山市顺德区美的电热电器制造有限公司 | Pot cover, electric pressure cooking saucepan and anti-overflow controlling means |
| CN112704376A (en) * | 2019-10-24 | 2021-04-27 | 佛山市顺德区美的电热电器制造有限公司 | Cooking method, device, equipment and storage medium |
-
2005
- 2005-04-18 CN CN 200510064442 patent/CN1687650A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103006041A (en) * | 2013-01-09 | 2013-04-03 | 胡达广 | Voiceprint recognition controlled energy-saving electric cooker |
| CN103096550A (en) * | 2013-01-21 | 2013-05-08 | 董晓波 | Method and device of cooker heating control |
| CN105816056A (en) * | 2016-06-06 | 2016-08-03 | 佛山市顺德区美的电热电器制造有限公司 | Heating equipment and cooking device and cooking method for heating equipment |
| CN105816056B (en) * | 2016-06-06 | 2018-03-23 | 佛山市顺德区美的电热电器制造有限公司 | The cooking methods of firing equipment, cooker and firing equipment |
| CN109008595A (en) * | 2017-06-08 | 2018-12-18 | 佛山市顺德区美的电热电器制造有限公司 | Pot cover, electric pressure cooking saucepan and anti-overflow controlling means |
| CN112704376A (en) * | 2019-10-24 | 2021-04-27 | 佛山市顺德区美的电热电器制造有限公司 | Cooking method, device, equipment and storage medium |
| CN112704376B (en) * | 2019-10-24 | 2022-04-05 | 佛山市顺德区美的电热电器制造有限公司 | Cooking method, device, equipment and storage medium |
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