CN102720683A - Air conditioner indoor modularization fan - Google Patents
Air conditioner indoor modularization fan Download PDFInfo
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- CN102720683A CN102720683A CN2012101442819A CN201210144281A CN102720683A CN 102720683 A CN102720683 A CN 102720683A CN 2012101442819 A CN2012101442819 A CN 2012101442819A CN 201210144281 A CN201210144281 A CN 201210144281A CN 102720683 A CN102720683 A CN 102720683A
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- fan
- motor
- air conditioner
- impeller
- pid
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Abstract
The invention discloses an air conditioner indoor modularization fan and belongs to the air conditioner field. The air conditioner indoor modularization fan comprises a motor, a fan, a frequency converter and a PID control circuit, wherein the fan comprises an impeller and a spiral case; the PID control circuit comprises a PID arithmetic unit, a PLC controller, an A/D conversion module, a D/A conversion module, a wind pressure sensor and a noise sensor; a motor shaft and an impeller are connected; three-phase alternating current is output to the frequency converter; an output terminal of the frequency converter is connected with a motor input terminal; control signals output by the PLC controller are sent respectively to the wind pressure sensor, the noise sensor and the frequency converter; output signals of both the wind pressure sensor and the noise sensor are sent to the PID arithmetic unit through the A/D conversion module; output signals of the PID arithmetic unit are sent to the PLC controller through the D/A conversion module. According to the invention, by using the frequency converter and the PID control circuit, motor starting current can be reduced; motor service life can be extended; and system operation noise can be effectively reduced.
Description
Technical field
The invention belongs to the air conditioner field, be specifically related to a kind of indoor module wind transmission fan of air conditioner.
Background technique
Air conditioner chamber's inner module wind transmission fan extensively applies to bearing the important function of indoor apparatus of air conditioner air draft and heat exchange in the air-conditioner system.Air conditioner chamber's inner module wind transmission fan generally is made up of motor and fan.For air conditioner chamber's inner module wind transmission fan, noise is one of important key index.
At present, the motor that uses in this type of air conditioner chamber inner 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; Have a strong impact on the working life of motor, and motor makes also the rotation of fan to regulate according to the real work situation by constant frequency running for a long time, increased system noise virtually.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 chamber's inner 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 noise and motor long air conditioner chamber's inner 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 chamber inner module wind transmission fan; Comprise motor, fan, frequency variator, PID control circuit, its fan is made up of impeller and spiral case, and the PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, wind pressure sensor and noise transducer; Machine shaft is connected with impeller; 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 wind pressure sensor, noise transducer and frequency variator respectively; Wind pressure sensor and noise 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, noise transducer detects System noise, and when System noise was higher than the noise setting value, system regulated according to PID, reduced frequency converter frequency, thereby lowers the noise that impeller produces; Wind pressure sensor detects system's blast, when the wind pressure sensor checkout value stops to reduce frequency when setting wind pressure value, increases frequency a little, thereby blast and noise are maintained in the range of balance; Vice versa.
In the technique scheme, can also comprise flat key, machine shaft and impeller be connected to interference fit, flat key is fixed between machine shaft and the impeller.Because flat key can play positioning action, when machine shaft rotates, rotates through the interference fit impeller.In this case, can effectively reduce the slide relative between machine shaft and the impeller, guarantee the rotation of fan and motor synchronous.
In the technique scheme, spiral case is a ventilation components, and the spiral case upside is the inlet side, and air side, downside position when the driven by motor wheel rotation, thereby drives wind flow.The spiral case inwall is slick and sly surface, can when impeller drive wind flow, reduce flowing to the bump of spiral case of wind as far as possible, and reduce noise.
Beneficial effect of the present invention is: because the present invention adopted frequency variator and PID control circuit, making that air conditioner chamber's inner module wind transmission is fanned can frequency-conversion starting motor, has reduced the electric motor starting electric current, thereby has increased motor working life.Simultaneously fan can be adjusted the fan rotary state according to the system pressure situation, makes motor smooth running and the noise can reduce the fan operation time.Machine shaft can effectively reduce the slide relative between machine shaft and the impeller with after being connected of impeller adopted interference fit, guarantees that fan and motor synchronous rotate, thereby has further increased motor working life, reduced system noise.
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Description of drawings
Fig. 1 is the inner module wind transmission fan structure figure of air conditioner chamber of the present invention, and wherein 1 is motor, and 2 is flat key, and 3 is impeller, and 4 is spiral case.
Fig. 2 is an air conditioner chamber of the present invention inner module wind transmission fan converter circuit connection diagram.
Fig. 3 is the inner module wind transmission fan PID of air conditioner chamber of the present invention control principle figure.
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 chamber of the present invention inner module wind transmission fan; Comprise motor 1, fan, frequency variator, PID control circuit, its fan is made up of impeller 3 and spiral case 4, and the PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, wind pressure sensor and noise transducer; The rotating shaft of motor 1 is connected with impeller 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 wind pressure sensor, noise transducer and frequency variator respectively; Wind pressure sensor and noise 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, noise transducer detects System noise, and when System noise was higher than the noise setting value, system regulated according to PID, reduced frequency converter frequency, thereby lowers the noise that impeller produces; Wind pressure sensor detects system's blast, when the wind pressure sensor checkout value stops to reduce frequency when setting wind pressure value, increases frequency a little, thereby blast and noise are maintained in the range of balance; Vice versa.
As shown in Figure 1, in the present embodiment, also comprise flat key 2, the rotating shaft of motor 1 and impeller 3 be connected to interference fit, flat key 2 is fixed between the rotating shaft and impeller 3 of motor 1.Because flat key 2 can play positioning action, when the rotating shaft of motor 1 is rotated, rotate through interference fit impeller 3.In this case, can effectively reduce the rotating shaft of motor 1 and the slide relative between the impeller 3, guarantee that fan and motor 1 rotate synchronously.
In the present embodiment, spiral case is a ventilation components, and the spiral case upside is the inlet side, and air side, downside position when the driven by motor wheel rotation, thereby drives wind flow.The spiral case inwall is slick and sly surface, can when impeller drive wind flow, reduce flowing to the bump of spiral case of wind as far as possible, and reduce noise.
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. air conditioner chamber's inner module wind transmission is fanned; It is characterized in that: comprise motor, fan, frequency variator, PID control circuit; Its fan is made up of impeller and spiral case; The PID control circuit is made up of PID arithmetic mean unit, PLC controller, A/D modular converter, D/A modular converter, wind pressure sensor and noise transducer, and machine shaft is connected with impeller, and threephase AC outputs to frequency variator; Inverter output terminal is connected to the motor input end; The PLC controller outputs a control signal to wind pressure sensor, noise transducer and frequency variator respectively, wind pressure sensor and noise 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 chamber according to claim 1 inner module wind transmission fan is characterized in that: also comprise flat key, said machine shaft and impeller be connected to interference fit, flat key is fixed between machine shaft and the impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101442819A CN102720683A (en) | 2012-05-11 | 2012-05-11 | Air conditioner indoor modularization fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101442819A CN102720683A (en) | 2012-05-11 | 2012-05-11 | Air conditioner indoor modularization fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720683A true CN102720683A (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101442819A Pending CN102720683A (en) | 2012-05-11 | 2012-05-11 | Air conditioner indoor modularization fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN102720683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570174A (en) * | 2016-02-25 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with wind pressure protection function |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001235797A (en) * | 2000-02-25 | 2001-08-31 | Seiko Epson Corp | Internal temperature control for projector |
| US20060181232A1 (en) * | 2005-02-16 | 2006-08-17 | Texas Instruments Incorporated | Advanced programmable closed loop fan control method |
| JP2006214525A (en) * | 2005-02-03 | 2006-08-17 | Usui Kokusai Sangyo Kaisha Ltd | Controlling method for externally controlled fan clutch |
| 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 |
| CN1920427A (en) * | 2005-08-23 | 2007-02-28 | 陈之启 | Room temperature PID control method of air conditioner set |
| CN101004182A (en) * | 2006-01-16 | 2007-07-25 | 台达电子工业股份有限公司 | Fan system, and control device |
| 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 converter for pumping unit |
| CN101115955A (en) * | 2005-01-28 | 2008-01-30 | （株）庆东Network | System and control method of oil burner's suitable burning ratio using air pressure sensor |
| 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 |
| CN201639144U (en) * | 2010-03-12 | 2010-11-17 | 武汉高斯激光技术有限公司 | Integrated high-power 6Kw crosscurrent CO2 industrial laser power supply device |
| CN202149052U (en) * | 2011-07-14 | 2012-02-22 | 无锡雪桃集团有限公司 | Fan frequency conversion control system |
| CN202659540U (en) * | 2012-05-11 | 2013-01-09 | 常州新德冷机有限公司 | Indoor modularized fan for air conditioner |
-
2012
- 2012-05-11 CN CN2012101442819A patent/CN102720683A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001235797A (en) * | 2000-02-25 | 2001-08-31 | Seiko Epson Corp | Internal temperature control for projector |
| CN101115955A (en) * | 2005-01-28 | 2008-01-30 | （株）庆东Network | System and control method of oil burner's suitable burning ratio using air pressure sensor |
| JP2006214525A (en) * | 2005-02-03 | 2006-08-17 | Usui Kokusai Sangyo Kaisha Ltd | Controlling method for externally controlled fan clutch |
| 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 |
| CN1920427A (en) * | 2005-08-23 | 2007-02-28 | 陈之启 | Room temperature PID control method of air conditioner set |
| CN101004182A (en) * | 2006-01-16 | 2007-07-25 | 台达电子工业股份有限公司 | Fan system, and control device |
| 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 converter for pumping unit |
| 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 |
| CN201639144U (en) * | 2010-03-12 | 2010-11-17 | 武汉高斯激光技术有限公司 | Integrated high-power 6Kw crosscurrent CO2 industrial laser power supply device |
| CN202149052U (en) * | 2011-07-14 | 2012-02-22 | 无锡雪桃集团有限公司 | Fan frequency conversion control system |
| CN202659540U (en) * | 2012-05-11 | 2013-01-09 | 常州新德冷机有限公司 | Indoor modularized fan for air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 丁良尹等: "空调器风扇性能测试系统的设计与实现", 《流体机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570174A (en) * | 2016-02-25 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with wind pressure protection function |
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Application publication date: 20121010 |