CN102678594A - Outdoor modularization fan of air-conditioner - Google Patents
Outdoor modularization fan of air-conditioner Download PDFInfo
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- CN102678594A CN102678594A CN2012101442490A CN201210144249A CN102678594A CN 102678594 A CN102678594 A CN 102678594A CN 2012101442490 A CN2012101442490 A CN 2012101442490A CN 201210144249 A CN201210144249 A CN 201210144249A CN 102678594 A CN102678594 A CN 102678594A
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- fan
- motor
- pid
- frequency converter
- control circuit
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Abstract
The invention discloses an outdoor modularization fan of an air-conditioner, belonging to the field of air-conditioners. The outdoor modularization fan comprises a motor, a fan, a frequency converter and a PID (Proportion Integration Differentiation) control circuit; the fan is composed of a fan rotating platform and blades; the PID control circuit is composed of a PID arithmetic unit, a PLC (Programmable Logic Controller), an A/D (Analog to Digital) conversion module, a D/A (Digital to Analog) conversion module and a pressure sensor; a rotating shaft of the motor is connected with the fan rotating platform; three-phase alternating current is output to the frequency converter; the output end of the frequency converter is connected to the input end of the motor; the PLC respectively outputs control signals to the pressure sensor and the frequency converter; the pressure sensor outputs signals to the PID arithmetic unit through the A/D conversion module; and the PID arithmetic unit outputs signals to the PLC through the D/A conversion module. As the frequency converter and the PID control circuit are adopted in the outdoor modularization fan, the starting current of the motor can be reduced, the service life of the motor is prolonged, the energy consumption of the motor is reduced, the motor can stably operate, and the energy saving effect can be realized.
Description
Technical field
The invention belongs to the air conditioner field, be specifically related to a kind of outdoor module wind transmission fan of air conditioner.
Background technique
Air conditioner outdoor module wind transmission fan extensively applies to bearing the important function of air conditioner outdoor machine radiating and cooling in the air-conditioner system.Air conditioner outdoor module wind transmission fan generally is made up of motor and fan.
At present, the motor that uses in this type of air conditioner outdoor module wind transmission fan adopts direct Starting mode, promptly to the motor power supply and motor is turned round by constant frequency.In this case; The inrush current of motor can be than the high 5-6 of rating value doubly; The working life but also the power consumption that not only can influence motor are bigger, and motor also makes the rotation of fan to regulate according to the real work situation by constant frequency running for a long time, have increased system energy consumption.In addition, the most transition fit that adopt of motor and fan Placement make during the motor high speed rotating asynchrony phenomenon to occur by matching loose easily, further influence motor working life and have increased system noise.
Above problem, needing badly provides a kind of novel air conditioner outdoor module wind transmission fan technological scheme to solve.
Summary of the invention
The objective of the invention is deficiency, propose a kind of have less energy consumption and motor long air conditioner outdoor module wind transmission fan in working life to above-mentioned existing technology.
In order to achieve the above object; The technological scheme that the present invention adopts is: a kind of air conditioner outdoor module wind transmission fan; Comprise motor, fan, frequency variator, PID control circuit, its fan is made up of fan rotation platform and blade, and the PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, pressure transducer; Machine shaft is connected with the fan rotation platform; Threephase AC outputs to frequency variator, and inverter output terminal is connected to the motor input end, and the PLC controller outputs a control signal to pressure transducer and frequency variator respectively; Pressure transducer output signal through the A/D modular converter to the PID arithmetic mean unit, the PID arithmetic mean unit export signal through the D/A modular converter to the PLC controller.
In the present technique scheme, when needs started fan, through the output signal of PLC controller control frequency variator and then the inrush current of control motor, promptly first low frequency started, and waits to start steadily, progressively increases frequency again.During fan work, pressure transducer detects system pressure.When system pressure was higher than pressure set points, system regulated according to PID, increased frequency converter frequency, added speed motor and rotated, thereby increase heat dissipating capacity in the unit time; When system pressure was lower than pressure set points, system regulated according to PID, reduced frequency converter frequency automatically.
In the technique scheme, can also comprise flat key, machine shaft and fan rotation platform be connected to interference fit, flat key is fixed between machine shaft and the fan rotation platform.Because flat key can play positioning action, when machine shaft rotates, drive the fan rotation platform through interference fit and rotate.In this case, can effectively reduce the slide relative between machine shaft and the fan rotation platform, guarantee the rotation of fan and motor synchronous.
Beneficial effect of the present invention is: because the present invention adopted frequency variator and PID control circuit, making that the wind transmission of air conditioner outdoor module is fanned can frequency-conversion starting motor, has reduced the electric motor starting electric current, thereby has increased motor working life, reduced energy consumption of electrical machinery.Fan can be adjusted the fan rotary state according to the system pressure situation simultaneously, makes the motor smooth running also can reach energy-saving effect.Machine shaft is with after being connected of fan rotation platform adopted interference fit; Can effectively reduce the slide relative between machine shaft and the fan rotation platform; Guarantee that fan and motor synchronous rotate, thereby further increased motor working life, and reduced system noise.
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Description of drawings
Fig. 1 is air conditioner outdoor module wind transmission fan structure figure of the present invention, and wherein 1 is motor, and 2 is flat key, and 3 is the fan rotation platform, and 4 is blade.
Fig. 2 is an air conditioner outdoor module wind transmission fan converter circuit connection diagram of the present invention.
Fig. 3 is air conditioner outdoor module wind transmission fan PID control principle figure of the present invention.
Embodiment
The present invention is made bright specifically below in conjunction with accompanying drawing and embodiment
Like Fig. 1, Fig. 2, shown in Figure 3; Air conditioner outdoor module wind transmission fan of the present invention; Comprise motor 1, fan, frequency variator, PID control circuit, its fan is made up of fan rotation platform 3 and blade 4, and the PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, pressure transducer; The rotating shaft of motor 1 is connected with fan rotation platform 3; Threephase AC outputs to frequency variator, and inverter output terminal is connected to the input end of motor 1, and the PLC controller outputs a control signal to pressure transducer and frequency variator respectively; Pressure transducer output signal through the A/D modular converter to the PID arithmetic mean unit, the PID arithmetic mean unit export signal through the D/A modular converter to the PLC controller.
In the present embodiment, when needs started fan, through the output signal of PLC controller control frequency variator and then the inrush current of control motor 1, promptly first low frequency started, and waits to start steadily, progressively increases frequency again.During fan work, pressure transducer detects system pressure.When system pressure was higher than pressure set points, system regulated according to PID, increased frequency converter frequency, added speed motor 1 and rotated, thereby increase heat dissipating capacity in the unit time; When system pressure was lower than pressure set points, system regulated according to PID, reduced frequency converter frequency automatically.
As shown in Figure 1, in the present embodiment, also comprise flat key 2, the rotating shaft of motor 1 and fan rotation platform 3 be connected to interference fit, flat key 2 is fixed between the rotating shaft and fan rotation platform 3 of motor 1.Because flat key 2 can play positioning action, when the rotating shaft of motor 1 is rotated, drive fan rotation platform 3 through interference fit and rotate.In this case, can effectively reduce the rotating shaft of motor 1 and the slide relative between the fan rotation platform 3, guarantee that fan and motor 1 rotate synchronously.
Though the present invention is with preferred embodiment openly as above, embodiment be not be used for limiting of the present invention.In spirit that does not break away from the present invention and scope, any equivalence of being done changes or retouching, belongs to the present invention's protection domain equally.Therefore protection scope of the present invention should be standard with the application's the content that claim was defined.
Claims (2)
1. an air conditioner outdoor module wind transmission is fanned; It is characterized in that: comprise motor, fan, frequency variator, PID control circuit, its fan is made up of fan rotation platform and blade, and the PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, pressure transducer; Machine shaft is connected with the fan rotation platform; Threephase AC outputs to frequency variator, and inverter output terminal is connected to the motor input end, and the PLC controller outputs a control signal to pressure transducer and frequency variator respectively; Pressure transducer output signal through the A/D modular converter to the PID arithmetic mean unit, the PID arithmetic mean unit export signal through the D/A modular converter to the PLC controller.
2. air conditioner outdoor module wind transmission according to claim 1 fan is characterized in that: also comprise flat key, said machine shaft and fan rotation platform be connected to interference fit, flat key is fixed between machine shaft and the fan rotation platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101442490A CN102678594A (en) | 2012-05-11 | 2012-05-11 | Outdoor modularization fan of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101442490A CN102678594A (en) | 2012-05-11 | 2012-05-11 | Outdoor modularization fan of air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102678594A true CN102678594A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101442490A Pending CN102678594A (en) | 2012-05-11 | 2012-05-11 | Outdoor modularization fan of air-conditioner |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006177205A (en) * | 2004-12-21 | 2006-07-06 | Toshiba Kyaria Kk | Axial fan, outdoor unit for air conditioner |
| US20060181232A1 (en) * | 2005-02-16 | 2006-08-17 | Texas Instruments Incorporated | Advanced programmable closed loop fan control method |
| CN1920414A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Motor shaft structure of fan for integral air conditioner |
| CN2929791Y (en) * | 2006-07-31 | 2007-08-01 | 北京紫御湾科技有限公司 | Speed regulating energy saving control system |
| CN101013880A (en) * | 2007-01-22 | 2007-08-08 | 烟台黄金电器有限公司 | Special frequency converter for oil pumping unit |
| CN201097221Y (en) * | 2007-09-11 | 2008-08-06 | 东莞市康达机电工程有限公司 | A frequency conversion shift system for parallel operation blower |
| CN201215099Y (en) * | 2008-04-09 | 2009-04-01 | 明大动力(北京)能源科技有限公司 | Intelligent efficacy energy-conserving end device for blower fan water pump |
| CN201606100U (en) * | 2010-02-10 | 2010-10-13 | 合肥华欣自控设备成套厂 | Ventilation variable-frequency control system used in express-highway tunnel |
| CN202149052U (en) * | 2011-07-14 | 2012-02-22 | 无锡雪桃集团有限公司 | Fan frequency conversion control system |
| CN202659539U (en) * | 2012-05-11 | 2013-01-09 | 常州新德冷机有限公司 | Outdoor modularized fan for air conditioner |
-
2012
- 2012-05-11 CN CN2012101442490A patent/CN102678594A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006177205A (en) * | 2004-12-21 | 2006-07-06 | Toshiba Kyaria Kk | Axial fan, outdoor unit for air conditioner |
| US20060181232A1 (en) * | 2005-02-16 | 2006-08-17 | Texas Instruments Incorporated | Advanced programmable closed loop fan control method |
| CN1920414A (en) * | 2005-08-22 | 2007-02-28 | 乐金电子(天津)电器有限公司 | Motor shaft structure of fan for integral air conditioner |
| CN2929791Y (en) * | 2006-07-31 | 2007-08-01 | 北京紫御湾科技有限公司 | Speed regulating energy saving control system |
| CN101013880A (en) * | 2007-01-22 | 2007-08-08 | 烟台黄金电器有限公司 | Special frequency converter for oil pumping unit |
| CN201097221Y (en) * | 2007-09-11 | 2008-08-06 | 东莞市康达机电工程有限公司 | A frequency conversion shift system for parallel operation blower |
| CN201215099Y (en) * | 2008-04-09 | 2009-04-01 | 明大动力(北京)能源科技有限公司 | Intelligent efficacy energy-conserving end device for blower fan water pump |
| CN201606100U (en) * | 2010-02-10 | 2010-10-13 | 合肥华欣自控设备成套厂 | Ventilation variable-frequency control system used in express-highway tunnel |
| CN202149052U (en) * | 2011-07-14 | 2012-02-22 | 无锡雪桃集团有限公司 | Fan frequency conversion control system |
| CN202659539U (en) * | 2012-05-11 | 2013-01-09 | 常州新德冷机有限公司 | Outdoor modularized fan for air conditioner |
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Application publication date: 20120919 |