CN201320079Y - Control device for temperature controlled pressure cooker - Google Patents
Control device for temperature controlled pressure cooker Download PDFInfo
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- CN201320079Y CN201320079Y CNU2008202043158U CN200820204315U CN201320079Y CN 201320079 Y CN201320079 Y CN 201320079Y CN U2008202043158 U CNU2008202043158 U CN U2008202043158U CN 200820204315 U CN200820204315 U CN 200820204315U CN 201320079 Y CN201320079 Y CN 201320079Y
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Abstract
The utility model discloses a control device for a temperature controlled pressure cooker, comprising a dual sensor (A1), a central processing unit (A2), a temperature acquisition circuit (A3), a heating tray drive circuit (A4) and an electromagnetic valve control circuit (A5), wherein the dual sensor is arranged at the top and the bottom of the pressure cooker and is used for detecting temperature of the inner container of the pressure cooker; the signal output terminal of the dual sensor (A1) arranged at the top and the bottom of the pressure cooker is connected with the input terminal of the temperature acquisition circuit (A3), and the output terminal of the temperature acquisition circuit (A3) is connected with the input terminal of the central processing unit (A2), and the output terminal of the central processing unit (A2) is respectively connected to input terminals of the heating tray drive circuit (A4) and the electromagnetic valve control circuit (A5), and the output terminal of the heating tray drive circuit (A4) is connected to a heating tray (A7) arranged in the pressure cooker, and the output terminal of the electromagnetic valve control circuit (A5) is connected to an electromagnetic valve (A8) arranged in the pressure cooker. The utility model can accurately control the pressure in the pressure cooker, so that the safety problem caused by extra pressure and insufficient boiling problem for less pressure can be avoided, and the effect of using different pressure to cook different food can be reached. The utility model saves time and power, and the cooked food is delicious.
Description
Technical field
The utility model is a kind of control device of temperaturing control pressure pot, belongs to the renovation technique of the control device of temperaturing control pressure pot.
Background technology
Pressure cooker on the existing market mostly is the straight tube pressure cooker of controlling with pressure switch greatly, the typical shortcoming of this kind pressure cooker is that pot inner pressure is single, can not adopt different pressures to boil at different foods, and when culinary art such as cooking more serious lamination can appear, the culinary art poor effect.Though temperaturing control pressure pot is also arranged on the existing market to be sold, but its automatically controlled scheme is to adopt bottom single-sensor and magnetic valve that pressure is controlled, the technical barrier that this scheme is brought is that pressure and temperature detection deviation is big, be difficult to reach and control effect preferably, and pressure cooker is subjected to factor affecting such as voltage pulsation and variation of ambient temperature bigger when work, so that directly influence the effect of culinary art, so the sales situation of the pot of the temperaturing control pressure on the existing market is not satisfactory.
The utility model content
The purpose of this utility model is to consider the problems referred to above and a kind of pressure cooker bottom and top dual sensor detected pressures inner bag temperature of stewing of utilizing is provided, accurately control pot internal pressure has been avoided the safety problem of the excessive generation of pressure or the control device that the too small temperaturing control pressure that can't satisfy the effect requirements that boils of pressure is stewed.
The technical solution of the utility model is: include and be arranged at pressure cooker bottom and top and be used for the stew dual sensor of inner bag temperature of detected pressures, CPU, temperature collection circuit, the heat-generating disc drive circuit, solenoid valve control circuit, the signal output part that wherein is arranged at the dual sensor at pressure cooker bottom and top is connected with the input of temperature collection circuit, the output of temperature collection circuit is connected with the input of CPU, the output of CPU be connected with the input of heat-generating disc drive circuit and solenoid valve control circuit respectively, the output of heat-generating disc drive circuit is connected with the heat-generating disc that is arranged at pressure cooker, and the output of solenoid valve control circuit is connected with the magnetic valve that is arranged at pressure cooker.
The input of above-mentioned CPU also is connected with voltage zero-crossing detection circuit.
The said temperature Acquisition Circuit includes resistance R 10, R12, capacitor C 15, C26, wherein the end of resistance R 10, R12 is connected and is connected with power supply VCC by capacitor C 26 with the signal output part of the dual sensor that is arranged at pressure cooker bottom and top, the other end ground connection of resistance R 10, the other end of resistance R 12 is connected with the input of CPU, and capacitor C 15 is connected between resistance R 10 and the resistance R 12.
Above-mentioned heat-generating disc drive circuit includes switching diode D11, D12, D16, resistance R 9, R24, triode Q1, capacitor C 11, C25, wherein the base stage of triode Q1 is connected with an end of resistance R 9, the other end of resistance R 9 is connected with the negative electrode of switching diode D11 respectively and is connected with the anode of capacitor C 11, the anode of switching diode D11 is connected with the negative electrode of switching diode D12 respectively and is connected with an end of capacitor C 25, and the other end of capacitor C 25 is connected with the output of CPU by R24, the negative electrode of capacitor C 11, the equal ground connection of the emitter stage of the anode of diode D12 and triode Q1, the colelctor electrode of triode Q1 is connected with power supply by switching diode D16 and is connected with the coil of relay R L2, and the contact of relay R L2 is connected with the heat-generating disc that is arranged at pressure cooker.
Above-mentioned solenoid valve control circuit includes resistance R 46, R47, triode Q10, diode D19, capacitor C 31, the wherein grounded emitter of triode Q10, the emitter stage of triode Q10 is connected with the output of CPU (A2) by resistance R 46, resistance R 47 is connected between the emitter stage and base stage of triode Q10, and the colelctor electrode of triode Q10 is connected with magnetic valve and passes through and is connected with power supply with the parallel circuit that diode D19 forms by capacitor C 31.
Above-mentioned voltage zero-crossing detection circuit includes commutation diode D3～D7, resistance R 3, R14, R15, triode Q2, capacitor C 3～C6, wherein the input of the bridge rectifier of being made up of commutation diode D3～D6 is connected with the transformer output of pressure cooker power circuit, the output of bridge rectifier is connected with the anode of commutation diode D7 respectively, be connected with an end of resistance R 15 and respectively with capacitor C 3, C5, the end of C6 connects, and capacitor C 3, this of C5 end ground connection, capacitor C 3, the other end of C5 is connected with power supply, the other end of capacitor C 6 is connected with an end of resistance R 3 respectively, be connected and ground connection with the emitter stage of triode Q2, the other end of resistance R 3 is connected with the other end of R15 and is connected with the base stage of triode Q2, the colelctor electrode of triode Q2 is connected with the input of CPU (A2) and is connected with power supply by resistance R 14, and capacitor C 4 is connected between the emitter stage and colelctor electrode of triode Q2.
The utility model utilizes the relation that pressure is directly proportional with temperature in the pressure cooker inner bag, detect the wall of inner container temperature by the multi way temperature sensor, pass through the in good time control of CPU again to heat-generating disc, thereby pressure in the control inner bag, reach with different pressure the effect that different food boils, the power saving that saves time is delicious again.The utility model utilizes pressure cooker bottom and top dual sensor detected pressures pot inner bag temperature, and the accurate control internal pressure of stewing has well been avoided the safety problem of the excessive generation of pressure or pressure is too small can't satisfy the effect requirements that boils.Its principle that pressure and temperature is directly proportional applies to pressure cooker control, has broken away from the unicity problem that detects the control of pot internal pressure with pressure switch.Outstanding advantage of the present utility model is:
1) adopts bottom and top dual sensor signal to judge, thereby effectively control pot internal pressure, temperature and pressure two parameters in pot accurately can be controlled to adjust.
2) introduce power-failure memory functional mode and drive mode such as heat-generating disc with high frequency waveforms, improved the security in the course of work.
3) can different food selection different pressures be boiled by to temperature controlling, improved the effect that boils.
4) can be by magnetic valve to be controlled, select tape pressure or be not with pressure to boil effectively combines common meal pot and pressure cooker together, has increased the mode of cooked food.
The utility model is that a kind of design is ingenious, function admirable, the control device of convenient and practical temperaturing control pressure pot.
Description of drawings
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of temperature collection circuit in the utility model;
Fig. 3 is the circuit theory diagrams of heat-generating disc drive circuit in the utility model;
The circuit theory diagrams of solenoid valve control circuit in Fig. 4 the utility model;
The circuit theory diagrams of voltage zero-crossing detection circuit in Fig. 5 the utility model.
The specific embodiment
Embodiment:
Theory diagram of the present utility model as shown in Figure 1, include and be arranged at pressure cooker bottom and top and be used for the stew dual sensor A1 of inner bag temperature of detected pressures, CPU A2, temperature collection circuit A3, heat-generating disc drive circuit A4, solenoid valve control circuit A5, the signal output part that wherein is arranged at the dual sensor A1 at pressure cooker bottom and top is connected with the input of temperature collection circuit A3, the output of temperature collection circuit A3 is connected with the input of CPU A2, the output of CPU A2 be connected with the input of heat-generating disc drive circuit A4 and solenoid valve control circuit A5 respectively, the output of heat-generating disc drive circuit A4 is connected with the heat-generating disc A7 that is arranged at pressure cooker, and the output of solenoid valve control circuit A5 is connected with the magnetic valve A8 that is arranged at pressure cooker.In the present embodiment, CPU A2 is a singlechip CPU.
In the present embodiment, the input of above-mentioned CPU A2 also is connected with voltage zero-crossing detection circuit A6.
The circuit theory diagrams of said temperature Acquisition Circuit A3 as shown in Figure 2, include resistance R 10, R12, capacitor C 15, C26, wherein the end of resistance R 10, R12 is connected with the signal output part of the dual sensor A1 that is arranged at pressure cooker bottom and top and is connected the other end ground connection of resistance R 10 with power supply VCC by capacitor C 26, the other end of resistance R 12 is connected with the input of CPU A2, and capacitor C 15 is connected between resistance R 10 and the resistance R 12.
The circuit theory diagrams of above-mentioned heat-generating disc drive circuit A4 as shown in Figure 3, include switching diode D11, D12, D16, resistance R 9, R24, triode Q1, capacitor C 11, C25, wherein the base stage of triode Q1 is connected with an end of resistance R 9, and the other end of resistance R 9 is connected with the negative electrode of switching diode D11 respectively and is connected with the anode of capacitor C 11, and the anode of switching diode D11 is connected with the negative electrode of switching diode D12 respectively and is connected with an end of capacitor C 25, the other end of capacitor C 25 is connected with the output of CPU A2 by R24, the negative electrode of capacitor C 11, the equal ground connection of the emitter stage of the anode of diode D12 and triode Q1, the colelctor electrode of triode Q1 is connected with power supply by switching diode D16 and is connected with the coil of relay R L2, and the contact of relay R L2 is connected with the heat-generating disc A7 that is arranged at pressure cooker.
The circuit theory diagrams of above-mentioned solenoid valve control circuit A5 as shown in Figure 4, include resistance R 46, R47, triode Q10, diode D19, capacitor C 31, the wherein grounded emitter of triode Q10, the emitter stage of triode Q10 is connected with the output of CPU A2 by resistance R 46, and resistance R 47 is connected between the emitter stage and base stage of triode Q10, and the colelctor electrode of triode Q10 is connected with magnetic valve A8 and passes through and is connected with power supply with the parallel circuit that diode D19 forms by capacitor C 31.
The circuit theory diagrams of above-mentioned voltage zero-crossing detection circuit A6 as shown in Figure 5, include commutation diode D3～D7, resistance R 3, R14, R15, triode Q2, capacitor C 3～C6, wherein the input of the bridge rectifier of being made up of commutation diode D3～D6 is connected with the transformer output of pressure cooker power circuit, the output of bridge rectifier is connected with the anode of commutation diode D7 respectively, be connected with an end of resistance R 15 and respectively with capacitor C 3, C5, the end of C6 connects, and capacitor C 3, this of C5 end ground connection, capacitor C 3, the other end of C5 is connected with power supply, the other end of capacitor C 6 is connected with an end of resistance R 3 respectively, be connected and ground connection with the emitter stage of triode Q2, the other end of resistance R 3 is connected with the other end of R15 and is connected with the base stage of triode Q2, the colelctor electrode of triode Q2 is connected with the input of CPU (A2) and is connected with power supply by resistance R 14, and capacitor C 4 is connected between the emitter stage and colelctor electrode of triode Q2.The utility model is connected to CPU with zero cross signal, is convenient to CPU and judges that civil power has or not power down, when the power down phenomenon occurring, CPU enters power-down mode, keeps the work at present state, and its advantage is to have played pressure in pot, can guarantee that magnetic valve can be not open-minded suddenly, guarantee safety.
Operation principle of the present utility model is as follows: when pressure cooker enters duty, CPU gathers the variations in temperature of two-way sensor by temperature collection circuit A3, when in detecting pot, having begun to press, level of cpu port output, magnetic valve A8 among the solenoid valve control circuit A5 is closed, pot internal pressure begins to rise, when the temperature that detects arrives a certain value, owing to there is the hysteresis quality that temperature rises in pot, compare judgement by the two-way sensor parameters and add thermal control, till satisfying needed pressure.In addition, in the pressure cooker duty, CPU of the present utility model detects pot inner bag temperature constantly, when selected function not simultaneously, CPU judges that the emphasis of sensor temperature point is also different, and such as on rice-cooking function, the major parameter that temperature is judged derives from bottom sensor, and on pot congee function, mainly be judged as the master again with the top sensor signal.Guaranteed that like this food is to the different requirements of pressure in pot.CPU also controls the switch of magnetic valve simultaneously, can carry out automatic vent after the function as cooking is finished, and saves time and safety.In the cooked food process, can also judge by temperature, the different temperatures section is regulated power, allow more science of the mode of boiling, effect is better.Heating for heat-generating disc A7, the utility model adopts high-frequency square-wave signal to drive relay, the advantage that adopts high-frequency square-wave signal to drive relay is to prevent CPU long-term heat-generating disc of connecting when phenomenons such as appearance deadlock, causes security incident, thereby has improved security performance.Voltage zero-crossing detection circuit A6 is that line voltage produces a pulse signal when zero passage, and be connected to the interruptive port of CPU, this signal is used for chip and judges whether power down of civil power, act as when occurring the outage phenomenon in the course of the work to keep the work at present state, guarantees safety.The utility model is carried out for different functions, is provided with different temperature spots in the program and carries out the redirect state, thereby guaranteed to adopt different pressures to boil to different foods.
Claims (6)
1, a kind of control device of temperaturing control pressure pot, it is characterized in that including and be arranged at pressure cooker bottom and top and be used for the stew dual sensor (A1) of inner bag temperature of detected pressures, CPU (A2), temperature collection circuit (A3), heat-generating disc drive circuit (A4), solenoid valve control circuit (A5), the signal output part that wherein is arranged at the dual sensor (A1) at pressure cooker bottom and top is connected with the input of temperature collection circuit (A3), the output of temperature collection circuit (A3) is connected with the input of CPU (A2), the output of CPU (A2) be connected with the input of heat-generating disc drive circuit (A4) and solenoid valve control circuit (A5) respectively, the output of heat-generating disc drive circuit (A4) is connected with the heat-generating disc that is arranged at pressure cooker (A7), and the output of solenoid valve control circuit (A5) is connected with the magnetic valve that is arranged at pressure cooker (A8).
2, the control device of temperaturing control pressure pot according to claim 1 is characterized in that the input of above-mentioned CPU (A2) also is connected with voltage zero-crossing detection circuit (A6).
3, the control device of temperaturing control pressure pot according to claim 1 and 2, it is characterized in that said temperature Acquisition Circuit (A3) includes resistance R 10, R12, capacitor C 15, C26, wherein the end of resistance R 10, R12 is connected and is connected with power supply VCC by capacitor C 26 with the signal output part of the dual sensor (A1) that is arranged at pressure cooker bottom and top, the other end ground connection of resistance R 10, the other end of resistance R 12 is connected with the input of CPU (A2), and capacitor C 15 is connected between resistance R 10 and the resistance R 12.
4, the control device of temperaturing control pressure pot according to claim 1 and 2, it is characterized in that above-mentioned heat-generating disc drive circuit (A4) includes switching diode D11, D12, D16, resistance R 9, R24, triode Q1, capacitor C 11, C25, wherein the base stage of triode Q1 is connected with an end of resistance R 9, the other end of resistance R 9 is connected with the negative electrode of switching diode D11 respectively and is connected with the anode of capacitor C 11, the anode of switching diode D11 is connected with the negative electrode of switching diode D12 respectively and is connected with an end of capacitor C 25, the other end of capacitor C 25 is connected with the output of CPU (A2) by R24, the negative electrode of capacitor C 11, the equal ground connection of the emitter stage of the anode of diode D12 and triode Q1, the colelctor electrode of triode Q1 is connected with power supply by switching diode D16 and is connected with the coil of relay R L2, and the contact of relay R L2 is connected with the heat-generating disc that is arranged at pressure cooker (A7).
5, the control device of temperaturing control pressure pot according to claim 1 and 2, it is characterized in that above-mentioned solenoid valve control circuit (A5) includes resistance R 46, R47, triode Q10, diode D19, capacitor C 31, the wherein grounded emitter of triode Q10, the emitter stage of triode Q10 is connected with the output of CPU (A2) by resistance R 46, resistance R 47 is connected between the emitter stage and base stage of triode Q10, and the colelctor electrode of triode Q10 is connected with magnetic valve (A8) and passes through and is connected with power supply with the parallel circuit that diode D19 forms by capacitor C 31.
6, the control device of temperaturing control pressure pot according to claim 2, it is characterized in that above-mentioned voltage zero-crossing detection circuit (A6) includes commutation diode D3～D7, resistance R 3, R14, R15, triode Q2, capacitor C 3～C6, wherein the input of the bridge rectifier of being made up of commutation diode D3～D6 is connected with the transformer output of pressure cooker power circuit, the output of bridge rectifier is connected with the anode of commutation diode D7 respectively, be connected with an end of resistance R 15 and respectively with capacitor C 3, C5, the end of C6 connects, and capacitor C 3, this of C5 end ground connection, capacitor C 3, the other end of C5 is connected with power supply, the other end of capacitor C 6 is connected with an end of resistance R 3 respectively, be connected and ground connection with the emitter stage of triode Q2, the other end of resistance R 3 is connected with the other end of R15 and is connected with the base stage of triode Q2, the colelctor electrode of triode Q2 is connected with the input of CPU (A2) and is connected with power supply by resistance R 14, and capacitor C 4 is connected between the emitter stage and colelctor electrode of triode Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202043158U CN201320079Y (en) | 2008-11-28 | 2008-11-28 | Control device for temperature controlled pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202043158U CN201320079Y (en) | 2008-11-28 | 2008-11-28 | Control device for temperature controlled pressure cooker |
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| Publication Number | Publication Date |
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| CN201320079Y true CN201320079Y (en) | 2009-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202043158U Expired - Fee Related CN201320079Y (en) | 2008-11-28 | 2008-11-28 | Control device for temperature controlled pressure cooker |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175905A (en) * | 2011-01-25 | 2011-09-07 | 深圳和而泰智能控制股份有限公司 | Zero crossing detecting circuit and device and warm air blower |
| CN101763127B (en) * | 2009-12-16 | 2012-07-04 | 电子科技大学 | Control method of pressure cooker |
| CN102681453A (en) * | 2012-05-18 | 2012-09-19 | 广东美的电器股份有限公司 | Electric heating controller and control method thereof |
| CN107319917A (en) * | 2017-07-17 | 2017-11-07 | 德奥通用航空股份有限公司 | The driving method and cooking apparatus of cooking apparatus magnetic valve |
| CN109199099A (en) * | 2018-08-16 | 2019-01-15 | 广东瑞德智能科技股份有限公司 | Food cooking machine and its overflow preventing inspecting method |
-
2008
- 2008-11-28 CN CNU2008202043158U patent/CN201320079Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101763127B (en) * | 2009-12-16 | 2012-07-04 | 电子科技大学 | Control method of pressure cooker |
| CN102175905A (en) * | 2011-01-25 | 2011-09-07 | 深圳和而泰智能控制股份有限公司 | Zero crossing detecting circuit and device and warm air blower |
| CN102681453A (en) * | 2012-05-18 | 2012-09-19 | 广东美的电器股份有限公司 | Electric heating controller and control method thereof |
| CN102681453B (en) * | 2012-05-18 | 2014-10-08 | 美的集团股份有限公司 | Electric heating controller and control method thereof |
| CN107319917A (en) * | 2017-07-17 | 2017-11-07 | 德奥通用航空股份有限公司 | The driving method and cooking apparatus of cooking apparatus magnetic valve |
| CN107319917B (en) * | 2017-07-17 | 2023-08-04 | 伊立浦集团股份有限公司 | Method for driving electromagnetic valve for cooking utensil and cooking utensil |
| CN109199099A (en) * | 2018-08-16 | 2019-01-15 | 广东瑞德智能科技股份有限公司 | Food cooking machine and its overflow preventing inspecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., Free format text: FORMER NAME: FOSHAN SHUNDE REALDESIGN ELECTRONICS INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528300 Shunde, Guangdong, Daliang Industrial Park, Fengxiang, Xiang Xiang Road, No. 1 Patentee after: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., LTD. Address before: 528300 Guangdong city of Foshan province Daliang Huaye Industrial Zone Fengxiang Road No. 1 Patentee before: Foshan Shunde Realdesign Electronics Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20161128 |