CN105318648B - A kind of refrigerating box humidity control method - Google Patents
A kind of refrigerating box humidity control method Download PDFInfo
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- CN105318648B CN105318648B CN201510778877.8A CN201510778877A CN105318648B CN 105318648 B CN105318648 B CN 105318648B CN 201510778877 A CN201510778877 A CN 201510778877A CN 105318648 B CN105318648 B CN 105318648B
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- humidity
- evaporation fan
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- refrigerating box
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Abstract
The invention discloses a kind of refrigerating box humidity control method, refrigerating box includes control system, evaporation fan and cooling cycle system, the control system includes operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, isolated drive circuit is provided with the single chip machine controlling circuit, power phase detects circuit and evaporation fan control circuit, the cooling cycle system includes compressor, condenser and evaporator, the Temperature Humidity Sensor is connected with single chip machine controlling circuit, the single chip machine controlling circuit is connected with operation display panel, the isolated drive circuit is connected with evaporation fan, the isolated drive circuit is connected with compressor.The temperature-humidity signal collected is reached single chip machine controlling circuit by the Temperature Humidity Sensor, and single chip machine controlling circuit is required according to the temperature humidity of setting, evaporation fan control signal is exported, by controlling the wind speed of evaporation fan, so as to adjust humidity in refrigerating box.
Description
Technical field
The invention belongs to refrigerating box technical field, and in particular to a kind of refrigerating box humidity control method.
Background technology
At present, in the market refrigerating box can realize the substantially constant control of temperature, but for humidity, by environment temperature, environment
Humidity influence is larger, be also not introduced into constant control technology.Relatively low 0~20 degree of the temperature inside the box is refrigerated, humidity is larger, it is impossible to effectively suppression
Bacteria breed processed and often there is cold-storage water to drench institute's store things, in the urgent need to there is the refrigerating box that can control humidity.It is single at present
The speed governing of cross streams motor is not applied also in refrigerating container evaporator.
The content of the invention
It is an object of the invention to can be detected, controlled there is provided one kind according to the uncontrollable deficiency of existing refrigerating box humidity
The new method of refrigerating box humidity.
To achieve these goals, the technical solution adopted by the present invention is:
A kind of refrigerating box humidity control method, refrigerating box includes control system, evaporation fan and cooling cycle system, described
Control system includes setting in operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, the single chip machine controlling circuit
Have isolated drive circuit, power phase detection circuit and evaporation fan control circuit, the cooling cycle system include compressor,
Condenser and evaporator, the Temperature Humidity Sensor are connected with single chip machine controlling circuit, the single chip machine controlling circuit and operation
Display panel is connected, and the isolated drive circuit is connected with evaporation fan, and the 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, single-chip microcomputer control electricity by Temperature Humidity Sensor
Road is required according to the temperature humidity of setting, exports evaporation fan control signal;
Step 2:Evaporation fan control signal is the controllable silicon controlled trigger signal of the angle of flow synchronous with power phase, is steamed
Air-blower control signal is sent out by light-coupled isolation controllable silicon output drive signal, light-coupled isolation controllable silicon driving high-power silicon controlled rectifier is defeated
Go out electric energy;
Step 3:The electric energy exported in isolated drive circuit step of converting 2 in single chip machine controlling circuit carries for evaporation fan
Power supply energy, drives evaporation fan, according to the control signal of evaporation fan in step 1, when humidity is more than setting humidity in case, control
System regulation processed reduces the wind speed of evaporation fan, and when humidity is less than setting humidity in case, control system regulation and control improve evaporation wind
The wind speed of machine, so as to control humidity substantially constant in refrigerating box.
Preferably, the Temperature Humidity Sensor is digital hygro sensor or artifical resistance formula Temperature Humidity Sensor.
Preferably, the evaporation fan is motor with cup rotor, or without the blower fan of operation electric capacity.
Preferably, the silicon controlled trigger signal is adjusted by the angle of flow of single sine wave, or passes through single sine wave
The conducting of whole waveform is adjusted with shut-off.
Preferably, the refrigerating box temperature/humidity control method applies also for Medical refrigerator, blood refrigerating case, reagent refrigerating
Case or the shady and cool case of medicine.
The acquirement of the present invention has the beneficial effect that:
The refrigerating box humidity control method is, in the case where not changing existing refrigerating box refrigeration structure, evaporation fan, to lead to
The control method for changing evaporation fan is crossed, evaporation fan rotating speed is adjusted, so as to adjust humidity in refrigerating box.The control of evaporation fan
In method, traditional controllable silicon adds uses analog circuit speed regulator of single-phase motor more, it is impossible to realize that humidity is associated with evaporation fan rotating speed
In control, this refrigerating box humidity control method, evaporation fan startup stage needs larger torque, is optimal startup mode, carries
The service life of high evaporation fan, can export Full wave shape control signal, after being transferred to control after stabilization of speed again during startup by single-chip microcomputer
System circulation, and this method gathers power phase signal using light-coupled isolation, is isolated control signal using light-coupled isolation controllable silicon
Amplification, driving high-power silicon controlled rectifier provides electric energy for evaporation fan.In this control method, Temperature Humidity Sensor is not limited to use number
Word Temperature Humidity Sensor, artifical resistance formula Temperature Humidity Sensor can also be used.
Brief description of the drawings
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 of output isolation control unit in isolated drive circuit.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of refrigerating box temperature/humidity control method, refrigerating box is followed including control system, evaporation fan and refrigeration
Loop system, the control system includes operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, the single-chip microcomputer control
Provided with isolated drive circuit, power phase detection circuit and evaporation fan control circuit, the cooling cycle system in circuit processed
Including compressor, condenser and evaporator, the Temperature Humidity Sensor is connected with single chip machine controlling circuit, the single-chip microcomputer control
Circuit is connected with operation display panel, and the isolated drive circuit is connected with evaporation fan, the isolated drive circuit and compression
Machine is connected.The evaporation fan can be replaced with motor with cup rotor, or be replaced with the blower fan without operation electric capacity.The controllable silicon
Trigger signal is adjusted by the angle of flow of single sine wave, or the conducting by the whole waveform of single sine wave is adjusted with shut-off.
Refrigerating box humidity control method comprises the following steps:
Step 1:The temperature-humidity signal collected is reached single chip machine controlling circuit, single-chip microcomputer control electricity by Temperature Humidity Sensor
Road is required according to the temperature humidity of setting, exports evaporation fan control signal;
Step 2:Evaporation fan control signal is the controllable silicon controlled trigger signal of the angle of flow synchronous with power phase, is steamed
Air-blower control signal is sent out by light-coupled isolation controllable silicon output drive signal, light-coupled isolation controllable silicon driving high-power silicon controlled rectifier is defeated
Go out electric energy;
Step 3:The electric energy exported in isolated drive circuit step of converting 2 in single chip machine controlling circuit carries for evaporation fan
Power supply energy, drives evaporation fan, according to the control signal of evaporation fan in step 1, when humidity is more than setting humidity in case, control
System regulation processed reduces the wind speed of evaporation fan, and when humidity is less than setting humidity in case, control system regulation and control improve evaporation wind
The wind speed of machine, so as to control humidity substantially constant in refrigerating box.
With reference to Fig. 2, the method is reached the information collected using humiture in Temperature and Humidity unit detection refrigerating box
In single chip machine controlling circuit, the Temperature Humidity Sensor is digital hygro sensor or artifical resistance formula temperature and humidity sensing
Device.In refrigerating box humidity control method, power phase signal is gathered using light-coupled isolation.With reference to Fig. 3, refrigerating box humid control side
In method, control signal isolation is amplified using controllable extension is isolated, the larger controllable silicon output electric energy of driving power is driven by isolating
Dynamic circuit provides electric energy for evaporation fan.
The refrigerating box humidity control method is, in the case where not changing existing refrigerating box refrigeration structure, evaporation fan, to lead to
The control method for changing evaporation fan is crossed, evaporation fan rotating speed is adjusted, so as to adjust humidity in refrigerating box.The control of evaporation fan
In method, traditional controllable silicon adds uses analog circuit speed regulator of single-phase motor more, it is impossible to realize that humidity is associated with evaporation fan rotating speed
In control, this refrigerating box humidity control method, evaporation fan startup stage needs larger torque, is optimal startup mode, carries
The service life of high evaporation fan, can export Full wave shape control signal, after being transferred to control after stabilization of speed during startup by single-chip microcomputer
System circulation.
The refrigerating box temperature/humidity control method be readily applicable to Medical refrigerator, blood refrigerating case, reagent refrigerating case,
In the refrigerating boxes such as medicine cool place case.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention, should also belong to the present invention's
Protection domain.
Claims (5)
1. a kind of refrigerating box humidity control method, it is characterised in that refrigerating box includes control system, evaporation fan and kind of refrigeration cycle
System, the control system includes operation display panel, Temperature Humidity Sensor and single chip machine controlling circuit, the single-chip microcomputer control
Provided with isolated drive circuit, power phase detection circuit and evaporation fan control circuit, the cooling cycle system bag in circuit
Compressor, condenser and evaporator are included, the Temperature Humidity Sensor is connected with single chip machine controlling circuit, the single-chip microcomputer control electricity
Road is connected with operation display panel, and the isolated drive circuit is connected with evaporation fan, the isolated drive circuit and compressor
It is connected;
Refrigerating box humidity control method comprises the following steps:
Step 1:The temperature-humidity signal collected is reached single chip machine controlling circuit, single chip machine controlling circuit root by Temperature Humidity Sensor
According to the temperature humidity requirement of setting, evaporation fan control signal is exported;
Step 2:Evaporation fan control signal is the controllable silicon controlled trigger signal of the angle of flow synchronous with power phase, evaporates wind
Machine control signal passes through light-coupled isolation controllable silicon output drive signal, light-coupled isolation controllable silicon driving high-power silicon controlled rectifier output electricity
Energy;
Step 3:The electric energy exported in isolated drive circuit step of converting 2 in single chip machine controlling circuit provides electricity for evaporation fan
Can, evaporation fan is driven, according to evaporation fan control signal in step 1, when humidity is more than setting humidity in case, control system
The wind speed of regulation and control reduction evaporation fan, when humidity is less than setting humidity in case, control system regulation and control improve the wind of evaporation fan
Speed, so as to control humidity substantially constant in refrigerating box.
2. refrigerating box humidity control method according to claim 1, it is characterised in that the Temperature Humidity Sensor is numeral
Temperature Humidity Sensor or artifical resistance formula Temperature Humidity Sensor.
3. refrigerating box humidity control method according to claim 1, it is characterised in that the evaporation fan is split-pole electricity
Machine, or without the blower fan of operation electric capacity.
4. refrigerating box humidity control method according to claim 1, it is characterised in that the silicon controlled trigger signal passes through
The angle of flow adjustment of single sine wave, or conducting and shut-off adjustment by the whole waveform of single sine wave.
5. refrigerating box humidity control method according to claim 1, it is characterised in that the refrigerating box Temperature and Humidity Control side
Method applies also for the shady and cool case of Medical refrigerator, blood refrigerating case, reagent refrigerating case or medicine.
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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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CN105720887B (en) * | 2016-04-01 | 2019-12-24 | 中航太克(厦门)电力技术股份有限公司 | Stepless speed regulation control circuit of alternating current fan |
CN109779892B (en) * | 2019-01-18 | 2020-12-11 | 广东美的制冷设备有限公司 | Electric control assembly 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 |
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JPH0579746A (en) * | 1991-09-19 | 1993-03-30 | Orion Mach Co Ltd | Method and device for humidity detection in high humidity refrigerator and humidity controller |
CN1553128A (en) * | 2003-06-06 | 2004-12-08 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
CN201340045Y (en) * | 2008-12-30 | 2009-11-04 | 福州兢辉环保科技有限公司 | Evaporative air conditioner with temperature and humidity control and temperature and humidity controller therein |
CN201398677Y (en) * | 2009-03-31 | 2010-02-10 | 青岛澳柯玛股份有限公司 | Novel cellaret with humidity control and stabilization system |
CN202109723U (en) * | 2011-06-17 | 2012-01-11 | 杭州路格科技有限公司 | Temperature and moisture monitoring instrument |
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CN203534018U (en) * | 2013-07-24 | 2014-04-09 | 青岛海尔电冰箱(国际)有限公司 | Refrigerator |
CN103925766A (en) * | 2014-04-02 | 2014-07-16 | 合肥荣事达三洋电器股份有限公司 | Temperature control and humidity display method of refrigerator refrigerating chamber and refrigerator |
CN204594074U (en) * | 2015-04-16 | 2015-08-26 | 青岛海尔特种电冰柜有限公司 | A kind of can the wine cabinet of accurate controlled humidity |
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2015
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Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0579746A (en) * | 1991-09-19 | 1993-03-30 | Orion Mach Co Ltd | Method and device for humidity detection in high humidity refrigerator and humidity controller |
CN1553128A (en) * | 2003-06-06 | 2004-12-08 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
CN201340045Y (en) * | 2008-12-30 | 2009-11-04 | 福州兢辉环保科技有限公司 | Evaporative air conditioner with temperature and humidity control and temperature and humidity controller therein |
CN201398677Y (en) * | 2009-03-31 | 2010-02-10 | 青岛澳柯玛股份有限公司 | Novel cellaret with humidity control and stabilization system |
CN202109723U (en) * | 2011-06-17 | 2012-01-11 | 杭州路格科技有限公司 | Temperature and moisture monitoring instrument |
CN202476961U (en) * | 2011-10-25 | 2012-10-10 | 北京海尔广科数字技术有限公司 | Wine cabinet |
CN203534018U (en) * | 2013-07-24 | 2014-04-09 | 青岛海尔电冰箱(国际)有限公司 | Refrigerator |
CN103925766A (en) * | 2014-04-02 | 2014-07-16 | 合肥荣事达三洋电器股份有限公司 | Temperature control and humidity display method of refrigerator refrigerating chamber and refrigerator |
CN204594074U (en) * | 2015-04-16 | 2015-08-26 | 青岛海尔特种电冰柜有限公司 | A kind of can the wine cabinet of accurate controlled humidity |
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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. |