CN105318648A - Freezer humidity control method - Google Patents
Freezer humidity control method Download PDFInfo
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- CN105318648A CN105318648A CN201510778877.8A CN201510778877A CN105318648A CN 105318648 A CN105318648 A CN 105318648A CN 201510778877 A CN201510778877 A CN 201510778877A CN 105318648 A CN105318648 A CN 105318648A
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- humidity
- evaporation fan
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- refrigerating box
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Abstract
The invention discloses a freezer humidity control method. A freezer comprises a control system, an evaporating fan and a refrigerating cycle system. The control system comprises an operation display panel, a temperature and humidity sensor and a single chip microcomputer control circuit. An isolating driver circuit, a power supply phase detection circuit and an evaporating fan control circuit are arranged in the single chip microcomputer control circuit. The refrigerating cycle system comprises a compressor, a condenser and an evaporator. The temperature and humidity sensor is connected with the single chip microcomputer control circuit. The single chip microcomputer control circuit is connected with the operation display panel. The isolating driver circuit is connected with the evaporating fan and the compressor. The temperature and humidity sensor transmits collected temperature and humidity signals to the single chip microcomputer control circuit, and the single chip microcomputer control circuit outputs evaporating fan control signals according to set temperature and humidity requirements, so that the humidity of the interior of the freezer is adjusted by controlling the air speed of the evaporating fan.
Description
Technical field
The invention belongs to refrigerating box technical field, be specifically related to a kind of refrigerating box humidity control method.
Background technology
At present, on market, refrigerating box can realize the substantially constant control of temperature, but for humidity, affects more greatly by environment temperature, ambient humidity, also do not introduce constant control technology.Refrigeration the temperature inside the box is lower 0 ~ 20 degree, and humidity is comparatively large, can not effectively grow and often have cold-storage water to be drenched by institute's storing articles by anti-bacteria, in the urgent need to there being the refrigerating box of energy controlled humidity.The speed governing of current load motor is not also applied in refrigerating container evaporator.
Summary of the invention
The object of the invention is to according to the uncontrollable deficiency of existing refrigerating box humidity, provide a kind of and can detect, control the new method of refrigerating box humidity.
To achieve these goals, the technical solution used in the present invention is:
A kind of refrigerating box humidity control method, refrigerating box comprises control system, evaporation fan and cooling cycle system, described control system comprises operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, isolated drive circuit is provided with in described single chip machine controlling circuit, power phase testing circuit and evaporation fan control circuit, described cooling cycle system comprises compressor, condenser and evaporimeter, described Temperature Humidity Sensor is connected with single chip machine controlling circuit, described single chip machine controlling circuit is connected with operation display panel, described isolated drive circuit is connected with evaporation fan, described isolated drive circuit is connected with compressor,
Refrigerating box humidity control method comprises the following steps:
Step 1: the temperature-humidity signal collected is reached single chip machine controlling circuit by Temperature Humidity Sensor, single chip machine controlling circuit, according to the temperature humidity requirement of setting, exports evaporation fan control signal;
Step 2: evaporation fan control signal is the controlled silicon controlled trigger signal of the angle of flow synchronous with power phase, and evaporation fan control signal is by light-coupled isolation controllable silicon output drive signal, and light-coupled isolation controllable silicon drives high-power silicon controlled rectifier to export electric energy;
Step 3: the electric energy exported in the isolated drive circuit step of converting 2 in single chip machine controlling circuit provides electric energy for evaporation fan, drive evaporation fan, according to the control signal of evaporation fan in step 1, when case humidity is greater than setting humidity, control system regulation and control reduce the wind speed of evaporation fan, when case humidity is less than setting humidity, control system regulation and control improve the wind speed of evaporation fan, thus control refrigerating box humidity substantially constant.
Preferably, described Temperature Humidity Sensor is digital hygro sensor or analog electrical resistive Temperature Humidity Sensor.
Preferably, described evaporation fan is motor with cup rotor, or the blower fan of not tape running electric capacity.
Preferably, described silicon controlled trigger signal is adjusted by the angle of flow of single sine wave, or is adjusted with shutoff by the conducting of the whole waveform of single sine wave.
Preferably, described refrigerating box temperature/humidity control method is also applicable to the shady and cool case of Medical refrigerator, blood refrigerating case, reagent refrigerating case or medicine.
The beneficial effect obtained of the present invention is:
This refrigerating box humidity control method is when not changing existing refrigerating box refrigeration structure, evaporation fan, by changing the control method of evaporation fan, and adjustment evaporation fan rotating speed, thus regulate refrigerating box humidity.In the control method of evaporation fan, tradition controllable silicon adds speed regulator of single-phase motor many employings analog circuit, humidity can not be realized associate with evaporation fan rotating speed and control, in this refrigerating box humidity control method, larger torque is needed the startup stage of evaporation fan, for optimal startup mode, improve the service life of evaporation fan, Full wave shape control signal can be exported by single-chip microcomputer during startup, controlled circulation is proceeded to again after stabilization of speed, and this method adopts light-coupled isolation to gather power phase signal, light-coupled isolation controllable silicon is adopted control signal isolation to be amplified, high-power silicon controlled rectifier is driven to provide electric energy for evaporation fan.In this control method, Temperature Humidity Sensor is not limited to adopt digital hygro sensor, and analog electrical resistive Temperature Humidity Sensor also can adopt.
Accompanying drawing explanation
Fig. 1 is refrigerating box temperature/humidity control method structural representation.
Fig. 2 is Temperature and Humidity element circuit figure in Temperature Humidity Sensor.
Fig. 3 is the circuit diagram exporting isolated controlling unit in isolated drive circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Composition graphs 1, a kind of refrigerating box temperature/humidity control method, refrigerating box comprises control system, evaporation fan and cooling cycle system, described control system comprises operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, isolated drive circuit is provided with in described single chip machine controlling circuit, power phase testing circuit and evaporation fan control circuit, described cooling cycle system comprises compressor, condenser and evaporimeter, described Temperature Humidity Sensor is connected with single chip machine controlling circuit, described single chip machine controlling circuit is connected with operation display panel, described isolated drive circuit is connected with evaporation fan, described isolated drive circuit is connected with compressor.Described evaporation fan can replace with motor with cup rotor, or replaces with the blower fan of not tape running electric capacity.Described silicon controlled trigger signal is adjusted by the angle of flow of single sine wave, or is adjusted with shutoff by the conducting of the whole waveform of single sine wave.
Refrigerating box humidity control method comprises the following steps:
Step 1: the temperature-humidity signal collected is reached single chip machine controlling circuit by Temperature Humidity Sensor, single chip machine controlling circuit, according to the temperature humidity requirement of setting, exports evaporation fan control signal;
Step 2: evaporation fan control signal is the controlled silicon controlled trigger signal of the angle of flow synchronous with power phase, and evaporation fan control signal is by light-coupled isolation controllable silicon output drive signal, and light-coupled isolation controllable silicon drives high-power silicon controlled rectifier to export electric energy;
Step 3: the electric energy exported in the isolated drive circuit step of converting 2 in single chip machine controlling circuit provides electric energy for evaporation fan, drive evaporation fan, according to the control signal of evaporation fan in step 1, when case humidity is greater than setting humidity, control system regulation and control reduce the wind speed of evaporation fan, when case humidity is less than setting humidity, control system regulation and control improve the wind speed of evaporation fan, thus control refrigerating box humidity substantially constant.
Composition graphs 2, the method uses humiture in Temperature and Humidity unit inspection refrigerating box, and reach in single chip machine controlling circuit by the information collected, described Temperature Humidity Sensor is digital hygro sensor or analog electrical resistive Temperature Humidity Sensor.In refrigerating box humidity control method, light-coupled isolation is adopted to gather power phase signal.Composition graphs 3, in refrigerating box humidity control method, adopt isolation controlled extension control signal isolation to be amplified, the controllable silicon that driving power is larger exports electric energy by isolated drive circuit for evaporation fan provides electric energy.
This refrigerating box humidity control method is when not changing existing refrigerating box refrigeration structure, evaporation fan, by changing the control method of evaporation fan, and adjustment evaporation fan rotating speed, thus regulate refrigerating box humidity.In the control method of evaporation fan, tradition controllable silicon adds speed regulator of single-phase motor many employings analog circuit, humidity can not be realized associate with evaporation fan rotating speed and control, in this refrigerating box humidity control method, needing larger torque startup stage of evaporation fan, is optimal startup mode, improves the service life of evaporation fan, Full wave shape control signal can be exported by single-chip microcomputer during startup, after stabilization of speed, proceed to controlled circulation.
Described refrigerating box temperature/humidity control method also goes in the refrigerating boxes such as Medical refrigerator, blood refrigerating case, reagent refrigerating case, the shady and cool case of medicine.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (5)
1. a refrigerating box humidity control method, it is characterized in that, refrigerating box comprises control system, evaporation fan and cooling cycle system, described control system comprises operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, isolated drive circuit is provided with in described single chip machine controlling circuit, power phase testing circuit and evaporation fan control circuit, described cooling cycle system comprises compressor, condenser and evaporimeter, described Temperature Humidity Sensor is connected with single chip machine controlling circuit, described single chip machine controlling circuit is connected with operation display panel, described isolated drive circuit is connected with evaporation fan, described isolated drive circuit is connected with compressor,
Refrigerating box humidity control method comprises the following steps:
Step 1: the temperature-humidity signal collected is reached single chip machine controlling circuit by Temperature Humidity Sensor, single chip machine controlling circuit, according to the temperature humidity requirement of setting, exports evaporation fan control signal;
Step 2: evaporation fan control signal is the controlled silicon controlled trigger signal of the angle of flow synchronous with power phase, and evaporation fan control signal is by light-coupled isolation controllable silicon output drive signal, and light-coupled isolation controllable silicon drives high-power silicon controlled rectifier to export electric energy;
Step 3: the electric energy exported in the isolated drive circuit step of converting 2 in single chip machine controlling circuit provides electric energy for evaporation fan, drive evaporation fan, according to evaporation fan control signal in step 1, when case humidity is greater than setting humidity, control system regulation and control reduce the wind speed of evaporation fan, when case humidity is less than setting humidity, control system regulation and control improve the wind speed of evaporation fan, thus control refrigerating box humidity substantially constant.
2. refrigerating box humidity control method according to claim 1, is characterized in that, described Temperature Humidity Sensor is digital hygro sensor or analog electrical resistive Temperature Humidity Sensor.
3. refrigerating box humidity control method according to claim 1, is characterized in that, described evaporation fan is motor with cup rotor, or the blower fan of not tape running electric capacity.
4. refrigerating box humidity control method according to claim 1, is characterized in that, described silicon controlled trigger signal is adjusted by the angle of flow of single sine wave, or is adjusted with shutoff by the conducting of the whole waveform of single sine wave.
5. refrigerating box humidity control method according to claim 1, is characterized in that, described refrigerating box temperature/humidity control method is also applicable to the shady and cool case of Medical refrigerator, blood refrigerating case, reagent refrigerating case or medicine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510778877.8A CN105318648B (en) | 2015-11-13 | 2015-11-13 | A kind of refrigerating box humidity control method |
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| CN201510778877.8A CN105318648B (en) | 2015-11-13 | 2015-11-13 | A kind of refrigerating box humidity control method |
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| CN105318648B CN105318648B (en) | 2017-10-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720887A (en) * | 2016-04-01 | 2016-06-29 | 中航太克（厦门）电力技术股份有限公司 | Stepless speed regulation control circuit of AC blower |
| CN109779892A (en) * | 2019-01-18 | 2019-05-21 | 广东美的制冷设备有限公司 | Electrically-controlled component and air conditioner |
| CN113983753A (en) * | 2021-10-08 | 2022-01-28 | 珠海格力电器股份有限公司 | Food material fresh-keeping control method and device and refrigeration equipment |
| CN115289778A (en) * | 2022-08-17 | 2022-11-04 | 长虹美菱股份有限公司 | Temperature and humidity control method and device for medicine refrigerating box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105720887A (en) * | 2016-04-01 | 2016-06-29 | 中航太克（厦门）电力技术股份有限公司 | Stepless speed regulation control circuit of AC blower |
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| CN109779892A (en) * | 2019-01-18 | 2019-05-21 | 广东美的制冷设备有限公司 | Electrically-controlled component and air conditioner |
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| CN113983753A (en) * | 2021-10-08 | 2022-01-28 | 珠海格力电器股份有限公司 | Food material fresh-keeping control method and device and refrigeration equipment |
| CN115289778A (en) * | 2022-08-17 | 2022-11-04 | 长虹美菱股份有限公司 | Temperature and humidity control method and device for medicine refrigerating box |
| CN115289778B (en) * | 2022-08-17 | 2024-04-12 | 长虹美菱股份有限公司 | Temperature and humidity control method and device for medicine refrigerator |
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| CN105318648B (en) | 2017-10-10 |
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Address after: 266510 No. 315, Bay Road, Huangdao District, Shandong, Qingdao Patentee after: Qingdao Aucma biomedical Co.,Ltd. Address before: 266510, No. 315, Bay Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: QINGDAO AUCMA ULTRA LOW TEMPERATURE FREEZING MACHINES Co.,Ltd. |
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