CN201166794Y - Electromagnetic oven cooking sound control device - Google Patents
Electromagnetic oven cooking sound control device Download PDFInfo
- Publication number
- CN201166794Y CN201166794Y CNU2008200442721U CN200820044272U CN201166794Y CN 201166794 Y CN201166794 Y CN 201166794Y CN U2008200442721 U CNU2008200442721 U CN U2008200442721U CN 200820044272 U CN200820044272 U CN 200820044272U CN 201166794 Y CN201166794 Y CN 201166794Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- electromagnetic oven
- processing unit
- central processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010411 cooking Methods 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 7
- 210000004508 polar body Anatomy 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000009835 boiling Methods 0.000 abstract description 18
- 230000005236 sound signal Effects 0.000 description 10
- 238000007664 blowing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000009841 combustion method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
The utility model relates to an electromagnetism stove culinary art acoustic control device. The electromagnetic oven comprises an acoustoelectric sensor (21), a frequency-selecting amplifying circuit module (22), a signal output module (23) and a central processing unit (24), wherein the output end of the acoustoelectric sensor (21) is connected with the input end of the frequency-selecting amplifying circuit module (22), the output end of the frequency-selecting amplifying circuit module (22) is connected with the input end of the signal output module (23), the output end of the signal output module (23) is connected with the input end of the central processing unit (24), and the output end of the central processing unit (24) is connected with a heater of the electromagnetic oven. The utility model discloses a sound electric sensor detects the heating household utensils that the area whistled adds the sound of aqueous object such as hot water, boiling on the electromagnetism stove when the boiling, judges the boiling situation of water according to the change of the sound that detects, adjusts the heating power of electromagnetism stove through central processing unit, realizes that the electromagnetism stove uses a kind of deep pot hot water, different functions such as cooking, and can realize the power of automatic shutoff electromagnetism stove.
Description
Technical field:
The utility model is that a kind of electromagnetic oven that is exclusively used in is being heated up water to the pan that is heated, the culinary art sound-controlled apparatus that can realize regulating the heating power of electromagnetic oven automatically during Baoshang and turn-off the power supply of electromagnetic oven.Be particularly related to a kind of electromagnetic oven that is exclusively used in and the various heating vessels such as the kettle of blowing a whistle, pressure cooker that have that heated heated up water the culinary art sound-controlled apparatus that to realize regulating the heating power of electromagnetic oven automatically during Baoshang and turn-off the power supply of electromagnetic oven.The renovation technique that belongs to electromagnetic oven culinary art sound-controlled apparatus.
Background technology:
Electromagnetic oven is because of itself flames of anger, and is totally convenient during use, the efficient height, the characteristics that hommization is strong so obtain extensively liking of consumer, are being heated up water to the various heating vessels that heated but the shortcoming of its existence is an electromagnetic oven, thermometric is inaccurate during Baoshang, heat up water, Baoshang, the reflection time of shutting down automatically during boiling is slow, the phenomenon that occurs dry combustion method easily, and can not realize the automatic adjusting of heating power, can not embody the strong advantage of hommization veritably, and damage pan and electricity wasting resource.
The Chinese patent publication number is to disclose a kind of audio frequency formula electric kettle boiling water among the CN2528352 from stop controller, its input end at the electric heating appliance control circuit is provided with an acoustic pickup, be input to filtering circuit and power switch after receiving the boiling signal and converting thereof into electric signal, cut off heating circuit, thereby solved the dry combustion method problem that exists in the water boiling implement, but this boiling water automatic stop controller function is simple, can not be at Baoshang, realize the automatic adjusting of power during boiling, and can not be applicable to various heating vessels.
The utility model content:
The purpose of this utility model is to consider the problems referred to above and provides a kind of electromagnetic oven that makes that the various heating vessels that heated are being heated up water, the accurate thermometric of energy during Baoshang, avoid occurring the phenomenon of dry combustion method, and can realize the self-regulating electromagnetic oven culinary art sound-controlled apparatus of electromagnetic oven heating power.The utility model can embody the strong advantage of hommization veritably, can effectively protect pan, and can effectively save electric resources.
The technical solution of the utility model is: include acoustoelectric sensor, selective frequency amplifier circuit module, signal output module and central processing unit, wherein the output terminal of acoustoelectric sensor is connected with the input end of selective frequency amplifier circuit module, the output terminal of selective frequency amplifier circuit module is connected with the input end of signal output module, the signal output module output terminal is connected with the input end of central processing unit, and the output terminal of central processing unit is connected with the well heater of electromagnetic oven.
Above-mentioned acoustoelectric sensor is for touching the polar body microphone.
Above-mentioned central processing unit is one chip microcomputer or digital signal processor or integrated circuit controller.
Above-mentioned selective frequency amplifier circuit module includes resistance (R1, R2, R3, R4, R5, R6), electric capacity (C1, C2, C3), triode (VT1, VT2), slip inductance (L1), wherein resistance (R1) is in parallel with resistance (R2) with the series circuit of electric capacity (C1) composition, and resistance (R1) is electrically connected with the city with the common port of resistance (R2), one end of electric capacity (C1) is connected with the output terminal of acoustoelectric sensor, the other end of electric capacity (C1) is connected with the base stage of triode (VT1), resistance (R3) is connected in parallel between the base stage and collector of triode (VT1), resistance (R4) is connected between the collector and ground of triode (VT1), electric capacity (C2) is connected between the base stage of the collector of triode (VT1) and triode (VT2), resistance (R5) is connected in parallel between triode VT2 base stage and the collector, and the emitter of triode (VT1) is electrically connected with the city, the grounded emitter of triode (VT2), resistance (R6) be connected on the collector of triode (VT2) and the frequency selection circuit that composes in parallel by slip inductance (L1) and electric capacity (C3) between, another common port of slip inductance (L1) and capacitor C 3 is electrically connected with the city.
Above-mentioned signal output module includes resistance (R7, R8), electric capacity (C4), triode (VT3), wherein an end of resistance (R7) is connected as the input end of signal output module (23) with the resistance (R6) in the selective frequency amplifier circuit module (22), the other end of resistance (R7) is connected with the base stage of triode (VT3), the emitter of triode (VT3) is electrically connected with the city, the collector of triode (VT3) with by resistance (R8), the filtering circuit series connection back that electric capacity (C4) composes in parallel is connected resistance (R8) with central processing unit, another common end grounding of electric capacity (C4).
Above-mentioned acoustoelectric sensor be installed in electromagnetic oven panel below, and be close to panel.
The utility model is owing to adopt by acoustoelectric sensor and detect heating vessel that band blows a whistle at the sound of aqueous object such as add hot water on the electromagnetic oven, scald during in boiling, judge the structure of the boiling situation of water according to the variation of detected sound, when heating vessel heats on electromagnetic oven, when the water in the heating vessel, when aqueous object boiling such as scalding, the water vapour of vaporization produces the sound signal of certain frequency by blowing a whistle rapidly.This sound signal reaches acoustoelectric sensor along heating vessel and electromagnetic oven panel, acoustoelectric sensor is converted into weak electric signal with this sound signal, the selective frequency amplifier circuit module is amplified this weak electric signal, pass to the signal output module rectifying and wave-filtering then, obtain the DC simulation signal, pass to central processing unit at last and carry out power adjustments and power cutoff.In addition, because under the different capacity pattern, water in the heating vessel, when aqueous object ebuillition of heated such as scalding, the audio signal frequency that produces by blowing a whistle can be variant, amplify the signal that obtains with water boiling range degree size in direct ratio by the frequency-selecting of selective frequency amplifier circuit module, just can determine also whether heating vessel water seethes with excitement, therefore, the utility model can be regulated the heating power of electromagnetic oven by central processing unit, realize that electromagnetic oven uses Baoshang, difference in functionalitys such as boiling, and can realize automatically shutting down the power supply of electromagnetic oven.The utility model signal receives quick and precisely, can realize accurately judging the boiling situation, and be that a kind of design is ingenious, function admirable, convenient and practical electromagnetic oven culinary art sound-controlled apparatus is applicable to the various heating vessels of blowing a whistle that have, as kettle, pressure cooker etc.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the circuit diagram of the utility model embodiment;
Fig. 3 is installed in structural representation on the electromagnetic oven for the utility model.
Embodiment:
Embodiment:
Theory diagram of the present utility model as shown in Figure 1, include acoustoelectric sensor 21, selective frequency amplifier circuit module 22, signal output module 23 and central processing unit 24, wherein the output terminal of acoustoelectric sensor 21 is connected with the input end of selective frequency amplifier circuit module 22, the output terminal of selective frequency amplifier circuit module 22 is connected with the input end of signal output module 23, the output terminal of signal output module 23 is connected with the input end of central processing unit 24, and the output terminal of central processing unit 24 is connected with the well heater of electromagnetic oven.
Above-mentioned acoustoelectric sensor 21 is for touching polar body microphone S1.
Above-mentioned central processing unit 24 is one chip microcomputer (MCU) or digital signal processor (DSP) or integrated circuit controller (IC).In the present embodiment, it is the single-chip microcomputer of TMP86F08 that above-mentioned central processing unit 24 adopts model.
In the present embodiment, circuit diagram of the present utility model as shown in Figure 2, above-mentioned selective frequency amplifier circuit module 22 includes resistance R 1, R2, R3, R4, R5, R6, capacitor C 1, C2, C3, triode VT1, VT2, slip inductance L 1, wherein resistance R 1 is in parallel with resistance R 2 with the series circuit of capacitor C 1 composition, and resistance R 1 is electrically connected with the city with the common port of resistance R 2, and an end of capacitor C 1 is connected with the output terminal of acoustoelectric sensor 21, in the present embodiment, acoustoelectric sensor 21 is for touching polar body microphone S 1, the other end of capacitor C 1 is connected with the base stage of triode VT1, and resistance R 3 is connected in parallel between the base stage and collector of triode VT1, and resistance R 4 is connected between the collector and ground of triode VT1, capacitor C 2 is connected between the base stage of the collector of triode VT1 and triode VT2, resistance R 5 is connected in parallel between the base stage and collector of triode VT2, and the emitter of triode VT1 is electrically connected with the city, the grounded emitter of triode VT2, resistance R 6 be connected on the collector of triode VT2 and the frequency selection circuit that composes in parallel by slip inductance L 1 and capacitor C 3 between, another common port of slip inductance L 1 and capacitor C 3 is electrically connected with the city.
Above-mentioned signal output module 23 includes resistance R 7, R8, capacitor C 4, triode VT3, wherein an end of resistance R 7 is connected as the input end of signal output module 23 with the resistance R 6 in the selective frequency amplifier circuit module 22, the other end of resistance R 7 is connected with the base stage of triode VT3, the emitter of triode VT3 is electrically connected with the city, the collector of triode VT3 is connected another common end grounding of resistance R 8, capacitor C 4 with the filtering circuit series connection back that is composed in parallel by resistance R 8, capacitor C 4 with central processing unit 24.
The utility model be installed on the electromagnetic oven 2 structural representation as shown in Figure 3, be equiped with 11 the heating vessel 1 of blowing a whistle and be placed on heating on the electromagnetic oven 2, by acoustoelectric sensor 21, the utility model sound-controlled apparatus A that selective frequency amplifier circuit module 22, signal output module 23 and central processing unit 24 are formed is installed in electromagnetic oven 2 inside, wherein acoustoelectric sensor 21 be installed in electromagnetic oven 2 panel 25 below, and be close to panel 25.
Principle of work of the present utility model is as follows: when electromagnetic oven was worked, when the water in the heating vessel 1 seethed with excitement, the water vapour of vaporization produced the sound signal of certain frequency by blowing a whistle 11 rapidly.This sound signal reaches acoustoelectric sensor 21 along heating vessel 1 and electromagnetic oven panel 25, and acoustoelectric sensor 21 is converted into weak electric signal with this sound signal.This weak electric signal is via resistance R 1, R2, R3, R4, R5, R6, capacitor C 1, C2, and the twin-stage amplifying circuit that triode VT1, VT2 form amplifies, the frequency selection circuit decision that its value of magnification is composed in parallel by slip inductance L 1, capacitor C 3.
The centre frequency of supposing inductance L 1, capacitor C 3 frequency selection circuits in parallel is Fc, and the frequency of supposing sound signal is Fa, according to slip inductance L 1, capacitor C 3 frequency selection circuit characteristics in parallel:
During the water boiling, Fa=Fc, L1, C3 parallel circuit equiva lent impedance maximum, so twin-stage amplifying circuit enlargement factor is maximum and do not have a phase shift deviation, this moment, VT3 just entered the saturation conduction state, exported the direct current signal of high level again behind the filtering circuit rectifying and wave-filtering that process R8, C4 composes in parallel and gave central processor CPU.Then central processor CPU just sends electric signal and realizes electromagnetic oven adjusting power or shutoff.
Otherwise, when water does not seethe with excitement, Fa ≠ Fc, and Fa and Fc deviate are big more, and the enlargement factor of weak electric signal is more little and the phase shift deviation is arranged, and this moment, VT3 ended, so the VT3 output low level is given central processor CPU, then central processor CPU just sends electric signal and makes electromagnetic oven continuation heating.
When the different heating vessel of electromagnetic oven dispensing, because the boiling of different heating vessel water can produce the sound signal of different frequency by blowing a whistle, can be by slip inductance L 1 contact, change the centre frequency Fc of L1, C3 frequency selection circuit in parallel, the audio signal frequency Fa when boiling to adapt to different heating vessel water.Work as Fc=Fa, just can correctly export the direct current signal of high level and give central processing unit 24, so electromagnetic oven can have been regulated power or power cutoff automatically.
Claims (6)
1, a kind of electromagnetic oven culinary art sound-controlled apparatus, it is characterized in that including acoustoelectric sensor (21), selective frequency amplifier circuit module (22), signal output module (23) and central processing unit (24), wherein the output terminal of acoustoelectric sensor (21) is connected with the input end of selective frequency amplifier circuit module (22), the output terminal of selective frequency amplifier circuit module (22) is connected with the input end of signal output module (23), signal output module (23) output terminal is connected with the input end of central processing unit (24), and the output terminal of central processing unit (24) is connected with the well heater of electromagnetic oven.
2, electromagnetic oven culinary art sound-controlled apparatus according to claim 1 is characterized in that above-mentioned acoustoelectric sensor (21) is for touching polar body microphone (S1).
3, electromagnetic oven culinary art sound-controlled apparatus according to claim 1 is characterized in that above-mentioned central processing unit (24) is one chip microcomputer or digital signal processor or integrated circuit controller.
4, according to claim 2 or 3 described electromagnetic oven culinary art sound-controlled apparatuses, it is characterized in that above-mentioned selective frequency amplifier circuit module (22) includes resistance (R1, R2, R3, R4, R5, R6), electric capacity (C1, C2, C3), triode (VT1, VT2), slip inductance (L1), wherein resistance (R1) is in parallel with resistance (R2) with the series circuit of electric capacity (C1) composition, and resistance (R1) is electrically connected with the city with the common port of resistance (R2), one end of electric capacity (C1) is connected with the output terminal of acoustoelectric sensor (21), the other end of electric capacity (C1) is connected with the base stage of triode (VT1), resistance (R3) is connected in parallel between the base stage and collector of triode (VT1), resistance (R4) is connected between the collector and ground of triode (VT1), electric capacity (C2) is connected between the base stage of the collector of triode (VT1) and triode (VT2), resistance (R5) is connected in parallel between triode VT2 base stage and the collector, the emitter of triode (VT1) is electrically connected with the city, the grounded emitter of triode (VT2), resistance (R6) be connected on the collector of triode (VT2) and the frequency selection circuit that composes in parallel by slip inductance (L1) and electric capacity (C3) between, another common port of slip inductance (L1) and capacitor C 3 is electrically connected with the city.
5, electromagnetic oven culinary art sound-controlled apparatus according to claim 4, it is characterized in that above-mentioned signal output module (23) includes resistance (R7, R8), electric capacity (C4), triode (VT3), wherein an end of resistance (R7) is connected as the input end of signal output module (23) with the resistance (R6) in the selective frequency amplifier circuit module (22), the other end of resistance (R7) is connected with the base stage of triode (VT3), the emitter of triode (VT3) is electrically connected with the city, the collector of triode (VT3) with by resistance (R8), the filtering circuit series connection back that electric capacity (C4) composes in parallel is connected resistance (R8) with central processing unit (24), another common end grounding of electric capacity (C4).
6, electromagnetic oven according to claim 5 culinary art sound-controlled apparatus, it is characterized in that above-mentioned acoustoelectric sensor (21) be installed in electromagnetic oven (2) panel (25) below, and be close to panel (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200442721U CN201166794Y (en) | 2008-02-26 | 2008-02-26 | Electromagnetic oven cooking sound control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200442721U CN201166794Y (en) | 2008-02-26 | 2008-02-26 | Electromagnetic oven cooking sound control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166794Y true CN201166794Y (en) | 2008-12-17 |
Family
ID=40192184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200442721U Expired - Lifetime CN201166794Y (en) | 2008-02-26 | 2008-02-26 | Electromagnetic oven cooking sound control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166794Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128677A (en) * | 2010-12-27 | 2011-07-20 | 广东盈科电子有限公司 | Water boiling detection device for electromagnetic oven |
| CN102692040A (en) * | 2012-05-23 | 2012-09-26 | 浙江工业大学 | Micro acceleration transducer-based cooking state control method for electromagnetic oven boiler |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN105650694A (en) * | 2016-04-08 | 2016-06-08 | 王渊奇 | Burnout prevention device |
-
2008
- 2008-02-26 CN CNU2008200442721U patent/CN201166794Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128677A (en) * | 2010-12-27 | 2011-07-20 | 广东盈科电子有限公司 | Water boiling detection device for electromagnetic oven |
| CN102128677B (en) * | 2010-12-27 | 2013-03-13 | 广东盈科电子有限公司 | Water boiling detection device for electromagnetic oven |
| CN102692040A (en) * | 2012-05-23 | 2012-09-26 | 浙江工业大学 | Micro acceleration transducer-based cooking state control method for electromagnetic oven boiler |
| CN104251502A (en) * | 2014-09-25 | 2014-12-31 | 中山市法兰宝电业有限公司 | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof |
| CN105650694A (en) * | 2016-04-08 | 2016-06-08 | 王渊奇 | Burnout prevention device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102821501B (en) | Induction cooker control circuit suitable for cookers of different materials and power control method | |
| CN101744542A (en) | Self elevation adaption soymilk grinder and soymilk making method thereof | |
| CN201166794Y (en) | Electromagnetic oven cooking sound control device | |
| CN201166795Y (en) | Temperature recognition device | |
| CN103654387A (en) | Electric cooker preventing overflowing and implementation method thereof | |
| CN106618183A (en) | Heating control system and method for electric kettles | |
| CN106123356A (en) | Liquid heater and liquid-heating method | |
| CN104251502B (en) | Control system for audio curve detection of boiling water in electromagnetic oven and method thereof | |
| CN106705170A (en) | Control method and control device | |
| CN201615519U (en) | Electromagnetic oven | |
| CN205831618U (en) | A kind of intelligent high-performance steam oven | |
| CN109121240A (en) | Cookware self-adaptive electromagnetic heating system, electromagnetic heater, method for heating and controlling | |
| CN201393916Y (en) | Electronic infrared burnout-proof alarm induction cooker | |
| CN205322068U (en) | Sound wave detects exempts from to boil energy -conserving pot | |
| CN201680452U (en) | Electromagnetic oven with function of automatic power off | |
| CN102999060A (en) | Method and circuit for controlling automatic heating stop of water boiling induction cooker after boiling | |
| CN201316156Y (en) | Electronic infrared burning prevention electromagnetic oven | |
| CN212117852U (en) | Energy-saving electric cooker | |
| CN210810610U (en) | Double-engine steaming and baking stove | |
| CN107270342A (en) | Electric cooker, lampblack absorber and its inter-linked controlling method and control device | |
| CN203731508U (en) | Multipurpose hot pot induction cooker | |
| CN102023662B (en) | A kind of control circuit of heating appliances and adopt the heating appliances of this control circuit | |
| CN201184694Y (en) | Split type induction automatic temperature control tea set electromagnetic furnace | |
| CN201977544U (en) | An electric pressure cooker capable of adjusting functions | |
| CN201885796U (en) | Water boiling detection device for induction cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING Co.,Ltd. Assignor: Midea Group Contract fulfillment period: 2008.12.27 to 2013.12.26 Contract record no.: 2009440000803 Denomination of utility model: Voice operated device for an electromagnetic heater cuisine Granted publication date: 20081217 License type: Exclusive license Record date: 20090724 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.27 TO 2013.12.26; CHANGE OF CONTRACT Name of requester: FOSHAN CITY SHUNDE DISTRICT MEDIA ELECTRIC HEATING Effective date: 20090724 |
|
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao Road, Shunde, Guangdong, Foshan, Penglai Patentee before: Midea Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |
|
| CX01 | Expiry of patent term |