CN107120797A - Precise air-conditioner fan frequency-changing control system and precise air-conditioner fan method for controlling frequency conversion - Google Patents
Precise air-conditioner fan frequency-changing control system and precise air-conditioner fan method for controlling frequency conversion Download PDFInfo
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- CN107120797A CN107120797A CN201710348955.XA CN201710348955A CN107120797A CN 107120797 A CN107120797 A CN 107120797A CN 201710348955 A CN201710348955 A CN 201710348955A CN 107120797 A CN107120797 A CN 107120797A
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- frequency
- parameter
- control system
- frequency converter
- conditioner fan
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention relates to a kind of precise air-conditioner fan frequency-changing control system, including air conditioner main body, in addition to frequency converter, the frequency converter is provided with button.Compared with prior art, the beneficial effect of technical solution of the present invention is：Application of frequency converter is improved in the professional degree of precision air conditioner, it is a kind of fan frequency converter for being exclusively used in precision air conditioner, without system control, reduction and the degree of dependence of air-conditioner controller, the R＆D costs of air-conditioning producer can be reduced, and improve controller, the flexibility of inverter selection.
Description
Technical field
The present invention relates to a kind of air-conditioner control system, specifically a kind of precise air-conditioner fan frequency-changing control system and essence
Close air-conditioning draught fan method for controlling frequency conversion.
Background technology
Precision air conditioner also needs the air quantity by regulation room condensed exterior blower fan come regulating system pressure while compressor is controlled
Power, to reach the purpose of constant temperature and humidity control, when adjusting fan delivery, regulation is according to pressure or the evaporation for being frame of reference
Temperature or condensing temperature value, need to improve rotation speed of fan when system pressure is too high, reduction are needed when system pressure is too low
Rotation speed of fan.
At present, the frequency converter of most of precision air conditioners is to use universal frequency converter, is pressed by the interface of universal frequency converter
Control mode according to universal frequency converter carries out speed regulating control, does not possess Summer and winter parameter setting, storage and parameter switching function, makes
Used time is, it is necessary to which host computer or engineering staff carry out parameter adjustment, very flexible.
The content of the invention
There is provided a kind of precise air-conditioner fan at least one defect (deficiency) for overcoming described in above-mentioned prior art by the present invention
Frequency-changing control system.
In order to solve the above technical problems, it is an object of the present invention to provide a kind of precise air-conditioner fan VFC system
System, including air conditioner main body, it is characterised in that：Also include frequency converter, the frequency converter is provided with button.
Further, the frequency converter is provided with numeral method device.
Further, the frequency converter is provided with interface.
Further, the interface is I/O port, communication port.
Further, the precise air-conditioner fan frequency-changing control system has power-fail memory function module.
It is yet another object of the invention to provide a kind of precise air-conditioner fan method for controlling frequency conversion, comprise the following steps：
S1. the parameter of frequency converter is set；
S2. on frequency converter after electricity, automatic detection current pressure or temperature and parameter state select corresponding according to parameter state
Setup parameter.
Further, the step S1 sets the parameter of frequency converter, and frequency converter is provided with parameter setting function and interface, the ginseng
Number includes system pressure, temperature, and the interface includes I/O port, communication port.
Further, the parameter at least includes two sets of parameters set, such as：The parameter may include winter and summer
Two sets of arrange parameters.
Further, on the step S2 frequency converters after electricity, automatic detection current pressure or temperature and parameter state, according to
Parameter state selects corresponding setup parameter；On frequency converter after electricity, automatic detection current pressure or temperature and parameter state, according to
Parameter state selects corresponding setup parameter, compares current pressure/temperature and setting Pressure/Temperature, and carry out according to its difference
Rotating speed is controlled.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
Application of frequency converter is improved in the professional degree of precision air conditioner, is a kind of fan frequency converter for being exclusively used in precision air conditioner, nothing
Need system control, reduction and the degree of dependence of air-conditioner controller, it is possible to decrease the R＆D costs of air-conditioning producer, and improve control
The flexibility of device, inverter selection.
Brief description of the drawings
Fig. 1 is the air-blower control logic chart of the embodiment of precise air-conditioner fan frequency-changing control system one of the present invention,
Fig. 2 is the software control flow chart of the embodiment of precise air-conditioner fan frequency-changing control system one in the present invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool is connected or electrically connected；It can be joined directly together or be indirectly connected with by intermediary, it may be said that two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
Concrete meaning.Technical scheme is described further with reference to the accompanying drawings and examples.
As shown in Figure 1-2, a kind of precise air-conditioner fan frequency-changing control system, it is an object of the present invention to provide a kind of essence
Close air-conditioning draught fan frequency-changing control system, including air conditioner main body, in addition to frequency converter, the frequency converter are provided with button.
As the improvement of specific embodiment, the frequency converter is provided with numeral method device.
As the improvement of specific embodiment, the frequency converter is provided with interface.
As the improvement of specific embodiment, the interface is I/O port, communication port.
As the improvement of specific embodiment, the precise air-conditioner fan frequency-changing control system has power-fail memory function module.
It is yet another object of the invention to provide a kind of precise air-conditioner fan method for controlling frequency conversion, comprise the following steps：
S1. the parameter of frequency converter is set；
S2. on frequency converter after electricity, automatic detection current pressure or temperature and parameter state select corresponding according to parameter state
Setup parameter.
As the improvement of specific embodiment, the step S1 sets the parameter of frequency converter, and frequency converter is provided with parameter setting work(
Energy and interface, the parameter include system pressure, temperature, and the interface includes I/O port, communication port.
As the improvement of specific embodiment, the parameter at least includes two sets of parameters set, such as：The parameter can be wrapped
Include two sets of arrange parameters of winter and summer.
As the improvement of specific embodiment, on the step S2 frequency converters after electricity, automatic detection current pressure or temperature and
Parameter state, corresponding setup parameter is selected according to parameter state；On frequency converter after electricity, automatic detection current pressure or temperature and
Parameter state, corresponding setup parameter is selected according to parameter state, compares current pressure/temperature and setting Pressure/Temperature, and root
Rotating speed control is carried out according to its difference.
Precision air conditioner also needs the air quantity by regulation room condensed exterior blower fan come regulating system pressure while compressor is controlled
Power, to reach the purpose of constant temperature and humidity control, when adjusting fan delivery, regulation is according to pressure or the evaporation for being frame of reference
Temperature or condensing temperature value, need to improve rotation speed of fan when system pressure is too high, reduction are needed when system pressure is too low
Rotation speed of fan, thus need when system is controlled to set a pressure fiducial value, or pass through the temperature of indirect reaction pressure height
Fiducial value is spent, to improve the constant temperature and humidity control performance of air-conditioning, the value (such as winter and summer when environment temperature difference is larger
Season) identical value can not be set as, it is necessary to set respectively.As precise air-conditioner fan frequency converter, if change can be write the values into
In frequency device, then frequency converter just can independently control system pressure.Meanwhile, two sets of arrange parameters (such as winter parameter and summer
Parameter) separate, then set without air-conditioner controller, reduce the development amount of air-conditioner controller, improve fan frequency converter
Generalization degree.Air-conditioner controller only needs given parameters selection signal (such as switching signal, communication instruction), and frequency converter is just
Rotation speed of fan can be automatically controlled.
The frequency converter increase parameter setting function and interface of the present invention, the parameter including but not limited to system pressure, temperature,
The interface is including but not limited to I/O port, communication port.Concrete technical scheme is：Frequency converter carries button and digital tube display, uses
Family is set by button enters parameter setting interface, and settable parameter has summer pressure P0-P4, winter pressure P0-P4, summer temperature
T0-T4, winter temperature T0-T4 are spent, being set by button can automatically save after operational factor, and with power failure memory function.
On frequency converter after electricity, automatic detection current pressure or temperature and parameter state select corresponding according to parameter state
Setup parameter, compares current pressure (temperature) and setting pressure (temperature), and carry out rotating speed control according to its difference.
Specific embodiment
In Fig. 1, abscissa is pressure value or temperature value, and ordinate is frequency values.P0-P4 is the Stress control of setting
Fiducial value, T0-T4 is the temperature fiducial value of setting, for indirectly controlled system pressure.F1 is minimum operating frequency, and F2 is highest
Running frequency, maximum running frequency is less than or equal to rated frequency.Curve body reality border running frequency and pressure or temperature in figure
The corresponding relation of degree.Operation logic is：When detecting current pressure (temperature) more than setup parameter P1 (T1), blower fan starts,
Running frequency is F1, and when detecting current pressure (temperature) more than setup parameter P2 (T2), blower fan is run with maximum (top) speed F2,
When detecting current pressure (temperature) more than setup parameter P4 (T4), blower fan is run with rated frequency, when detecting current pressure
When power (temperature) is less than setup parameter P3 (T3), blower fan is reduced to maximum (top) speed F2 operations, detects current pressure (temperature) small
When setup parameter P0 (T0), blower fan is out of service, when detect current pressure (temperature) more than P1 be less than P2 when, rotating speed is with pressure
Power (temperature) changes linear regulation.
Fig. 2 is software control flow chart, is detected or is suitably controlled by external communication signal behavior by chip I/O port
Parameter processed, the control parameter is wherein a set of in two sets of parameters, often covers at least five parameter and can be set.Cut when detecting parameter
When changing signal, blower fan is first forced to run t minutes (t according to rated frequency>0, can set), it is then out of service.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
Application of frequency converter is improved in the professional degree of precision air conditioner, is a kind of fan frequency converter for being exclusively used in precision air conditioner, nothing
Need system control, reduction and the degree of dependence of air-conditioner controller, it is possible to decrease the R＆D costs of air-conditioning producer, and improve control
The flexibility of device, inverter selection.
In figure, position relationship being given for example only property explanation is described, it is impossible to be interpreted as the limitation to this patent；Obviously, this hair
Bright above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to embodiments of the present invention
Limit.For those of ordinary skill in the field, other multi-forms can also be made on the basis of the above description
Change or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all the spirit and principles in the present invention it
Interior made any modifications, equivalent substitutions and improvements etc., should be included within the protection domain of the claims in the present invention.
Claims (9)
1. a kind of precise air-conditioner fan frequency-changing control system, including air conditioner main body, it is characterised in that：Also include frequency converter, it is described
Frequency converter is provided with button.
2. precise air-conditioner fan frequency-changing control system according to claim 1, it is characterised in that：The frequency converter is provided with
Numeral method device.
3. precise air-conditioner fan frequency-changing control system according to claim 1, it is characterised in that：The frequency converter is provided with
Interface.
4. precise air-conditioner fan frequency-changing control system according to claim 3, it is characterised in that：The interface be I/O port,
Communication port.
5. precise air-conditioner fan frequency-changing control system according to claim 1, it is characterised in that：The precise air-conditioner fan
Frequency-changing control system has power-fail memory function module.
6. a kind of precise air-conditioner fan method for controlling frequency conversion, comprises the following steps：
S1. the parameter of frequency converter is set；
S2. on frequency converter after electricity, automatic detection current pressure or temperature and parameter state are set accordingly according to parameter state selection
Determine parameter.
7. precise air-conditioner fan frequency-changing control system according to claim 6, it is characterised in that：The step S1 settings become
The parameter of frequency device, frequency converter is provided with parameter setting function and interface, and the parameter includes system pressure, temperature, and the interface includes IO
Mouth, communication port.
8. precise air-conditioner fan frequency-changing control system according to claim 6, it is characterised in that：The parameter at least includes
Two sets of parameters for setting.
9. precise air-conditioner fan frequency-changing control system according to claim 6, it is characterised in that：The step S2 frequency converters
After upper electricity, automatic detection current pressure or temperature and parameter state select corresponding setup parameter according to parameter state；Frequency converter
After upper electricity, automatic detection current pressure or temperature and parameter state select corresponding setup parameter according to parameter state, compare and work as
Preceding Pressure/Temperature and setting Pressure/Temperature, and rotating speed control is carried out according to its difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348955.XA CN107120797B (en) | 2017-05-17 | 2017-05-17 | Frequency conversion control system and frequency conversion control method for precise air conditioner fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348955.XA CN107120797B (en) | 2017-05-17 | 2017-05-17 | Frequency conversion control system and frequency conversion control method for precise air conditioner fan |
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| CN107120797A true CN107120797A (en) | 2017-09-01 |
| CN107120797B CN107120797B (en) | 2023-10-17 |
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| CN201710348955.XA Active CN107120797B (en) | 2017-05-17 | 2017-05-17 | Frequency conversion control system and frequency conversion control method for precise air conditioner fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606757A (en) * | 2021-05-28 | 2021-11-05 | 维克（天津）有限公司 | Fan control method for full-direct-current variable-frequency air-cooling module machine |
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| US4497242A (en) * | 1982-02-11 | 1985-02-05 | Barber-Colman Company | Ventilation control system |
| CN2533418Y (en) * | 2002-03-11 | 2003-01-29 | 广州市奥特控制工程有限公司 | Temp. controller |
| CN2758628Y (en) * | 2004-10-28 | 2006-02-15 | 江苏新科电子集团空调器制造有限公司 | Circuit device for indoor unit of air conditioner and window air conditioner |
| CN1766447A (en) * | 2004-10-28 | 2006-05-03 | 江苏新科电子集团空调器制造有限公司 | Circuit device of indoor unit of air conditioner, circuit device of window type air conditioner, and method for starting air conditioner after sudden power-off |
| US20090150024A1 (en) * | 2007-12-06 | 2009-06-11 | Denso Corporation | Location range setting apparatus, control method and controller for apparatus mounted in mobile object, and automotive air conditioner and control method for the same |
| CN201318774Y (en) * | 2008-11-24 | 2009-09-30 | 郝光宗 | Energy-saving control device for water circulating pump of central air-conditioner |
| CN104295517A (en) * | 2014-08-08 | 2015-01-21 | 暨南大学 | Intelligent indoor temperature adjusting system |
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2017
- 2017-05-17 CN CN201710348955.XA patent/CN107120797B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4497242A (en) * | 1982-02-11 | 1985-02-05 | Barber-Colman Company | Ventilation control system |
| CN2533418Y (en) * | 2002-03-11 | 2003-01-29 | 广州市奥特控制工程有限公司 | Temp. controller |
| CN2758628Y (en) * | 2004-10-28 | 2006-02-15 | 江苏新科电子集团空调器制造有限公司 | Circuit device for indoor unit of air conditioner and window air conditioner |
| CN1766447A (en) * | 2004-10-28 | 2006-05-03 | 江苏新科电子集团空调器制造有限公司 | Circuit device of indoor unit of air conditioner, circuit device of window type air conditioner, and method for starting air conditioner after sudden power-off |
| US20090150024A1 (en) * | 2007-12-06 | 2009-06-11 | Denso Corporation | Location range setting apparatus, control method and controller for apparatus mounted in mobile object, and automotive air conditioner and control method for the same |
| CN201318774Y (en) * | 2008-11-24 | 2009-09-30 | 郝光宗 | Energy-saving control device for water circulating pump of central air-conditioner |
| CN104295517A (en) * | 2014-08-08 | 2015-01-21 | 暨南大学 | Intelligent indoor temperature adjusting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113606757A (en) * | 2021-05-28 | 2021-11-05 | 维克（天津）有限公司 | Fan control method for full-direct-current variable-frequency air-cooling module machine |
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Effective date of registration: 20180906 Address after: 519000 3 building, No. 13 building, Jinding Science and Technology Industrial Park, Jinfeng West Road, Tangjia Bay, Zhuhai, Guangdong, China. A Applicant after: ZHUHAI WELLGO INVERTER TECHNOLOGY Co.,Ltd. Address before: 519000 B305, 3rd floor, 8 Pingtung six road, Nanping Science and Technology Industrial Park, Zhuhai, Guangdong Applicant before: ZHUHAI SUYING TECHNOLOGY CO.,LTD. |
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