CN113647807A - Steam box control circuit - Google Patents
Steam box control circuit Download PDFInfo
- Publication number
- CN113647807A CN113647807A CN202111178407.XA CN202111178407A CN113647807A CN 113647807 A CN113647807 A CN 113647807A CN 202111178407 A CN202111178407 A CN 202111178407A CN 113647807 A CN113647807 A CN 113647807A
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- China
- Prior art keywords
- heating plate
- temperature
- positive
- steam
- negative
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- 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.)
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- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000010025 steaming Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The circuit of the invention is a matching application circuit of a steam and hot air mixed type steam box, a heater is arranged at the bottom of an inner cavity of the steam box, and the heater comprises a heating plate, a steam generating pipe and a fan; the steam generating pipe is of a closed ring shape and is embedded in the heating plate, one end of the steam generating pipe is provided with a water inlet, the upper part of the pipe wall is provided with a steam outlet which is vertical and penetrates through the heating plate, and the heating plate is provided with a cooling fan; the main functions of the circuit are as follows: starting a fan, and when the temperature in the box body is lower than a set value, heating by the heating plate until the temperature in the box body exceeds a set maximum value and stopping; when the humidity in the box body is lower than a set value, the water motor works, water enters the heating plate, and steam is generated until the humidity in the box body exceeds the set maximum value and stops; when the temperature of the heating plate exceeds a set maximum value, the heating plate is powered off, and the heating plate is prevented from being damaged; when the temperature of the heating plate is lower than the set minimum value and the water adding can not generate steam, the water adding motor is turned off.
Description
Technical Field
The invention relates to the field of kitchen equipment, in particular to a steam box control circuit.
Background
The application is a supporting application circuit of "a steam hot-blast mixed type steam ager".
The 'steam and hot air mixed type steam box' is kitchen equipment and is used for generating steam and processing food.
The bottom of the inner cavity of the steam box is provided with a heater, and the heater comprises a heating plate, a steam generating pipe and a fan; the steam generating pipe is of a closed ring shape and is embedded in the heating plate, one end of the steam generating pipe is provided with a water inlet, and the upper part of the pipe wall is provided with a steam outlet which is vertical and penetrates through the heating plate; the fan is arranged on the upper end surface of the heating plate, is separated from the upper end surface, and has air inlet at the upper end and air outlet at the lower end.
The main functions of the circuit are as follows:
a temperature and humidity sensor is arranged in the box body, and a temperature sensor is arranged in the heating plate;
when the fan is started, the fan works;
when the temperature in the box body is lower than a set value, the heating plate heats until the temperature in the box body exceeds a set maximum value and stops;
when the humidity in the box body is lower than a set value, the water motor works, water enters the heating plate, and steam is generated until the humidity in the box body exceeds the set maximum value and stops;
when the temperature of the heating plate exceeds a set maximum value, the heating plate is powered off, and the heating plate is prevented from being damaged;
when the temperature of the heating plate is lower than the set minimum value and the water adding can not generate steam, the water adding motor is turned off.
Disclosure of Invention
The purpose of the invention is: according to the set temperature and humidity, the steam box is automatically heated and generates steam; in order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
A steam box control circuit comprising: the system comprises a direct-current power supply and fan control unit, an in-box temperature and humidity measurement and control unit, a heating plate measurement and control unit and a heating plate driving unit;
the heating plate driving unit consists of a time relay KT, a rectifier bridge D, a first contact J2-1 of a relay J2, a heating plate RL, a silicon controlled rectifier SCR, a voltage regulator tube ZD, a resistor R1, a resistor R2 and an optical coupler OC; the method is characterized in that: one end of KT is connected with an L end of an alternating current 220V power supply, the other end of KT is connected with an alternating current input end of D, the N end of the alternating current 220V power supply is connected with the other end of the alternating current input end of D, the positive end of the direct current output end of D is connected with one end of J2-1, the other end of J2-1 is connected with one ends of R1 and RL, the other end of RL is connected with an SCR anode end, a SCR control end is connected with a ZD negative end, the other end of R1 is connected with a ZD positive end and one end of R2 and an OC collector electrode, an SCR cathode, the other end of R2 and an OC emitter electrode are connected with the D direct current negative end and grounded, and the OC positive electrode and the negative electrode are connected with a temperature and humidity measurement and control unit in the box.
The direct-current power supply and fan control unit consists of a direct-current power supply B and a cooling fan FS; the first contact of the input end B is connected with the other end of KT, the second contact of the input end B is connected with the N end of an alternating current 220V power supply, one end of FS is connected with the positive end of B, and the other end of FS is connected with the negative end of B.
The temperature and humidity measurement and control unit in the box consists of a temperature and humidity sensor U1, adjustable resistors R3 and R4, a resistor R5, triodes Q1 and Q2, a first contact J1-1 of a relay J1 and a water adding motor M; the positive end and the negative end of a U1 power supply are respectively connected with the positive electrode and the negative electrode of the B output, the output end of U1 humidity is connected with one end of a resistor R4, the output end of U1 temperature is connected with one end of a resistor R3, the other end of R3 is connected with the positive electrode end of OC, the negative electrode end of OC is connected with the negative electrode of B, the other end of R4 is connected with the base of Q1, the emitter of Q1 is grounded, the collector of Q1 is connected with one end of a resistor R5 and the base of Q2, the other end of R5 is connected with the positive electrode of B, the emitter of Q2 is grounded, the collector of Q2 is connected with one end of M, the other end of M is connected with one end of J1-1, and the other end of J1-1 is connected with the positive electrode of B.
The heating plate measurement and control unit consists of a temperature sensor U2, potentiometers RP1 and RP2, resistors R6 and R7, relays J1 and J2, and voltage comparators IC1 and IC 2; the positive end and the negative end of a U2 power supply are respectively connected with the positive electrode and the negative electrode of a B output, the temperature output end of U2 is connected with one end of a resistor R6 and one end of R7, the other end of R6 and the other end of R7 are respectively connected with the positive phase ends of IC1 and IC2, the two ends of RP1 are respectively connected with the positive end and the negative end of B, the two ends of RP2 are respectively connected with the positive end and the negative end of B, and the middle ends of RP1 and RP2 are respectively connected with the reverse phase ends of IC1 and IC 2.
The OC is a linear optocoupler; the heating plate is a pure resistive load.
The temperature and humidity sensor is arranged in the box body and used for collecting the temperature and humidity in the box body; the temperature sensor is arranged in the heating plate and used for collecting the temperature of the heating plate.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
Debugging:
setting heating time: adjusting KT delay time of a relay;
setting the heating temperature in the box body: adjusting the resistance values of R2 and R3;
adjusting the temperature control sensitivity of the heating plate: adjusting the resistance values of R2 and R3;
setting the humidity in the box body: adjusting the resistance value of R4;
setting the lowest temperature value of the heating plate: an adjustment potentiometer RP 1;
setting the highest temperature value of the heating plate: the potentiometer RP2 is adjusted.
The operation process is as follows:
pressing a time relay KT and a direct current power supply B to obtain electricity and output direct current, and rotating a fan FS;
at the moment, the temperature and humidity in the box body are low, the output ends 3 and 4 of the temperature and humidity sensor U1 respectively output low level signals, the 4-end signal of U1 passes through R3 to the anode of the optical coupler OC, but the OC is cut off due to low signal voltage;
in the starting stage, because the temperature of the heating plate is lower than the set minimum value, the IC1 and the IC2 output low voltage, the J1 and the J2 lose power, the J1-1 is opened, and the J2-1 is closed;
when the time relay KT is pressed down, the output end of the rectifier bridge D outputs pulsating direct current, when the partial pressure between R1 and R2 is higher than ZD threshold voltage, the SCR control electrode is conducted, the SCR is conducted and the heating plate RL is electrically heated due to the cut-off of OC, when the temperature in the box body rises, the OC collector current increases, the voltage between R1 and R2 decreases, the SCR control electrode conduction angle increases and the RL voltage decreases, the voltage regulation is realized;
Further, when the temperature in the box body reaches a set value, the OC is further conducted, so that the ZD input end is bypassed, the current of a SCR control electrode is zero, the SCR is cut off when the anode voltage is over zero, the heating plate RL loses power, and heating is stopped;
the output end 3 of the U1 outputs a low level, the Q1 is cut off, the Q2 is conducted, however, as the J1-1 is disconnected and the water adding motor M cannot be electrified, when the temperature of the heating plate exceeds a set minimum value, the IC1 outputs a high level, the J1 is electrified, the J1-1 is closed and the water adding motor M is electrified to rotate; further, when the humidity in the box body reaches a set value, Q1 is switched on, the voltage of a base of Q2 is pulled low, Q2 is further cut off, the water adding motor M loses power, and water adding is stopped;
when the temperature of the heating plate exceeds the set maximum temperature, the IC2 outputs high level, the J2 is powered on, the J2-1 is disconnected, and the heating plate is powered off, so that the protection effect is achieved, and the heating plate is prevented from being damaged by overheating;
and when the time set by KT is up, KT is disconnected, the steam box is powered off, and the operation is finished.
Claims (6)
1. A steam box control circuit comprising: the system comprises a direct-current power supply and fan control unit, an in-box temperature and humidity measurement and control unit, a heating plate measurement and control unit and a heating plate driving unit;
the heating plate driving unit consists of a time relay KT, a rectifier bridge D, a first contact J2-1 of a relay J2, a heating plate RL, a silicon controlled rectifier SCR, a voltage regulator tube ZD, a resistor R1, a resistor R2 and an optical coupler OC; the method is characterized in that: one end of KT is connected with an L end of an alternating current 220V power supply, the other end of KT is connected with an alternating current input end of D, the N end of the alternating current 220V power supply is connected with the other end of the alternating current input end of D, the positive end of the direct current output end of D is connected with one end of J2-1, the other end of J2-1 is connected with one ends of R1 and RL, the other end of RL is connected with an SCR anode end, a SCR control end is connected with a ZD negative end, the other end of R1 is connected with a ZD positive end and one end of R2 and an OC collector electrode, an SCR cathode, the other end of R2 and an OC emitter electrode are connected with the D direct current negative end and grounded, and the OC positive electrode and the negative electrode are connected with a temperature and humidity measurement and control unit in the box.
2. The control circuit of claim 1, wherein the dc power supply and fan control unit is composed of a dc power supply B and a cooling fan FS; the first contact of the B input terminal is connected with the other end of KT,
And a second contact of the input end B is connected with the N end of an alternating current 220V power supply, one end of an FS terminal is connected with the positive end of the B terminal, and the other end of the FS terminal is connected with the negative end of the B terminal.
3. The control circuit of the steam box according to claim 1, wherein the temperature and humidity measurement and control unit in the steam box consists of a temperature and humidity sensor U1, adjustable resistors R3 and R4, a resistor R5, triodes Q1 and Q2, a first contact J1-1 of a relay J1 and a water adding motor M; the positive end and the negative end of a U1 power supply are respectively connected with the positive electrode and the negative electrode of the B output, the output end of U1 humidity is connected with one end of a resistor R4, the output end of U1 temperature is connected with one end of a resistor R3, the other end of R3 is connected with the positive electrode end of OC, the negative electrode end of OC is connected with the negative electrode of B, the other end of R4 is connected with the base of Q1, the emitter of Q1 is grounded, the collector of Q1 is connected with one end of a resistor R5 and the base of Q2, the other end of R5 is connected with the positive electrode of B, the emitter of Q2 is grounded, the collector of Q2 is connected with one end of M, the other end of M is connected with one end of J1-1, and the other end of J1-1 is connected with the positive electrode of B.
4. The control circuit of the steam box as claimed in claim 1, wherein the heating plate measurement and control unit is composed of a temperature sensor U2, potentiometers RP1 and RP2, resistors R6 and R7, relays J1 and J2, and voltage comparators IC1 and IC 2; the positive end and the negative end of a U2 power supply are respectively connected with the positive electrode and the negative electrode of a B output, the temperature output end of U2 is connected with one end of a resistor R6 and one end of R7, the other end of R6 and the other end of R7 are respectively connected with the positive phase ends of IC1 and IC2, the two ends of RP1 are respectively connected with the positive end and the negative end of B, the two ends of RP2 are respectively connected with the positive end and the negative end of B, and the middle ends of RP1 and RP2 are respectively connected with the reverse phase ends of IC1 and IC 2.
5. The steaming box control circuit according to claim 1, wherein the OC is a linear optocoupler; the heating plate is a pure resistive load.
6. The control circuit of claim 1, wherein the temperature and humidity sensor is mounted in a box; the temperature sensor is installed in the heating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178407.XA CN113647807A (en) | 2021-10-10 | 2021-10-10 | Steam box control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111178407.XA CN113647807A (en) | 2021-10-10 | 2021-10-10 | Steam box control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113647807A true CN113647807A (en) | 2021-11-16 |
Family
ID=78494522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111178407.XA Pending CN113647807A (en) | 2021-10-10 | 2021-10-10 | Steam box control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113647807A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542993Y (en) * | 2001-12-27 | 2003-04-02 | 蔡可健 | Full-automatic controller of solar water heater |
| WO2007118427A1 (en) * | 2006-04-17 | 2007-10-25 | Eternal (Guangdong) Electric Holding Ltd. | electronic controller for liquid heating container |
| CN200966562Y (en) * | 2006-09-30 | 2007-10-31 | 申文龙 | Full-automatic energy-saving control device for electric rice cooker |
| CN101658385A (en) * | 2008-08-25 | 2010-03-03 | 倪军 | Hot air circulating heating insulation device and method for using same |
| CN102272527A (en) * | 2009-01-08 | 2011-12-07 | 夏普株式会社 | Vapor generating device and cooker |
| CN104665573A (en) * | 2014-08-22 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Cooking equipment and control method thereof |
| CN106175421A (en) * | 2016-08-31 | 2016-12-07 | 李传聪 | A kind of steam hot wind mixed type steam box |
| CN207912555U (en) * | 2017-05-25 | 2018-09-28 | 国家电网公司 | A kind of novel intelligent rice cooker |
| CN109008587A (en) * | 2018-06-28 | 2018-12-18 | 合肥百年五星饮食设备有限责任公司 | A kind of Intelligent oven timer reservation control system |
| CN214253038U (en) * | 2021-02-01 | 2021-09-21 | 北京隆轩橡塑有限公司 | Temperature and humidity control device of steam box |
-
2021
- 2021-10-10 CN CN202111178407.XA patent/CN113647807A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2542993Y (en) * | 2001-12-27 | 2003-04-02 | 蔡可健 | Full-automatic controller of solar water heater |
| WO2007118427A1 (en) * | 2006-04-17 | 2007-10-25 | Eternal (Guangdong) Electric Holding Ltd. | electronic controller for liquid heating container |
| CN200966562Y (en) * | 2006-09-30 | 2007-10-31 | 申文龙 | Full-automatic energy-saving control device for electric rice cooker |
| CN101658385A (en) * | 2008-08-25 | 2010-03-03 | 倪军 | Hot air circulating heating insulation device and method for using same |
| CN102272527A (en) * | 2009-01-08 | 2011-12-07 | 夏普株式会社 | Vapor generating device and cooker |
| CN104665573A (en) * | 2014-08-22 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Cooking equipment and control method thereof |
| CN106175421A (en) * | 2016-08-31 | 2016-12-07 | 李传聪 | A kind of steam hot wind mixed type steam box |
| CN207912555U (en) * | 2017-05-25 | 2018-09-28 | 国家电网公司 | A kind of novel intelligent rice cooker |
| CN109008587A (en) * | 2018-06-28 | 2018-12-18 | 合肥百年五星饮食设备有限责任公司 | A kind of Intelligent oven timer reservation control system |
| CN214253038U (en) * | 2021-02-01 | 2021-09-21 | 北京隆轩橡塑有限公司 | Temperature and humidity control device of steam box |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211116 |
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| RJ01 | Rejection of invention patent application after publication |