CN104121658A - Control method and device for draught fan of outdoor unit of air conditioner and air conditioner - Google Patents
Control method and device for draught fan of outdoor unit of air conditioner and air conditioner Download PDFInfo
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- CN104121658A CN104121658A CN201310157717.2A CN201310157717A CN104121658A CN 104121658 A CN104121658 A CN 104121658A CN 201310157717 A CN201310157717 A CN 201310157717A CN 104121658 A CN104121658 A CN 104121658A
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Abstract
The invention discloses a control method for a draught fan of an outdoor unit of an air conditioner. The method comprises the steps that after the draught fan is controlled to operate through response to a starting instruction, a system load of the air conditioner is obtained at random time intervals or preset time intervals, and operation of the draught fan is controlled on the basis of the system load of the air conditioner; when the system load of the air conditioner is smaller than a preset system load range, the rotational speed of the draught fan is lowered; when the system load of the air conditioner is larger than the preset system load range, the rotational speed of the draught fan is increased. By the adoption of the control method for the draught fan of the outdoor unit of the air conditioner, it is guaranteed that the draught fan operates at a high rotational speed when the air conditioner operates at a high load, and the draught fan operates at a low rotational speed when the air conditioner operates at a low load, so the stable operation of an air conditioning system is ensured, the rotational speed of the draught fan can also be lowered when the air conditioner load is low, and consequently noise and power consumption of the draught fan can be reduced. The invention further discloses a corresponding control device for the draught fan of the outdoor unit of the air conditioner and the air conditioner.
Description
Technical field
The invention belongs to air conditioner controlling technology field, relate in particular to a kind of control method, control device and air-conditioning of fan of outdoor unit of air conditioner.
Background technology
Along with the raising of people's living standard, increasing family selection air-conditioning is as the capital equipment of heating cooling.At present, in operation of air conditioner process, the blower fan of off-premises station adopts fixing rotation speed operation, and in order to ensure that air-conditioning can stable operation, this rotating speed is the high rotating speed of determining under high load condition according to air-conditioning.
There is defect in the existing control mode for fan of outdoor unit of air conditioner: the rotating speed of blower fan is fixed, and this rotating speed is the Location of requirement under high load condition according to air-conditioning, in the time that the load of air-conditioning is lower, blower fan still runs up, can produce larger noise, and consumed power is larger, energy-saving effect is poor.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of control method and control device of fan of outdoor unit of air conditioner, to solve in prior art blower fan with the fixed rotating speed problem that noise is large, power consumption is large causing that turns round.
For achieving the above object, the invention provides following technical scheme:
A control method for fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable, and described control method comprises:
Receiving after open command, controlling described blower fan running;
According to the system load of random time interval or Preset Time interval acquiring air-conditioning;
Between more described system load and predetermined system load region, obtain comparative result;
According to the running of blower fan described in comparative result control;
In the time that described system load is greater than between described predetermined system load region, judge that whether the current rotating speed of described blower fan is maximum (top) speed, if current rotating speed is maximum speed, controls described blower fan and maintains current rotating speed, if current rotating speed is not maximum speed, controls described blower fan and improve rotating speed;
In the time that described system load is positioned at described default load interval, controls described blower fan and maintain current rotating speed;
In the time that described system load is less than described default load interval, judge that whether the current rotating speed of described blower fan is minimum speed, if current rotating speed is minimum speed, controls described blower fan and maintains current rotating speed, if current rotating speed is not minimum speed, controls described blower fan and reduce rotating speed.
Preferably, in above-mentioned control method, the described blower fan of described control improves rotating speed, comprising:
Judge whether described system load is greater than the first numerical value;
If described system load is greater than described the first numerical value, controls described blower fan and turn round with maximum speed;
If described system load is less than or equal to described the first numerical value, control described blower fan with the rotation speed operation higher than current rotating speed.
Preferably, in above-mentioned control method, obtain the system load of air-conditioning, comprising:
Obtain outdoor environment temperature and outdoor pipe Wen Wendu;
Calculate the difference between described outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining described difference is air-conditioning.
Preferably, in above-mentioned control method, obtain the system load of air-conditioning, comprising:
Obtain the design temperature of indoor temperature and air-conditioning;
Calculate the difference between described indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining described difference is air-conditioning.
Preferably, in above-mentioned control method, the described blower fan running of described control, comprising:
Control described blower fan with the first rotation speed operation very first time value;
Obtain the running frequency of outdoor environment temperature and air-conditioning;
Determine the second rotating speed of described blower fan according to the running frequency of described outdoor environment temperature and air-conditioning;
Control described blower fan with second rotation speed operation the second time value.
Preferably, in above-mentioned control method, the described running frequency according to described outdoor environment temperature and air-conditioning is determined the second rotating speed of described blower fan, comprising:
Contrast described environment temperature and default temperature range set, determine the temperature range that described outdoor environment temperature is affiliated;
Compare the running frequency of described air-conditioning and default frequency separation set, determine the affiliated frequency separation of running frequency of described air-conditioning;
According to default temperature range and the corresponding relation of frequency separation and rotation speed of fan, determine described the second rotating speed.
On the other hand, the invention discloses a kind of control device of fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable, and described control device comprises:
The first processing unit, for receiving after open command, controls described blower fan running;
Data capture unit, for according to the system load of random time interval or Preset Time interval acquiring air-conditioning;
Data processing unit, between more described system load and predetermined system load region, obtains comparative result;
The first control module, for in the time that described system load is greater than between described predetermined system load region, judge whether the current rotating speed of described blower fan is maximum (top) speed, if current rotating speed is maximum speed, control described blower fan and maintain current rotating speed, if current rotating speed is not maximum speed, controls described blower fan and improve rotating speed;
The second control module, when be positioned between described predetermined system load region in described system load, control described blower fan and maintains current rotating speed;
The 3rd control module, for in the time that described system load is less than between described predetermined system load region, judge whether the current rotating speed of described blower fan is minimum speed, if current rotating speed is minimum speed, control described blower fan and maintain current rotating speed, if current rotating speed is not minimum speed, controls described blower fan and reduce rotating speed.
Preferably, in above-mentioned control device, described the first control module comprises the first control module,
Described the first control module is in the time that definite current rotating speed is not maximum (top) speed, judge whether described system load is greater than the first numerical value, if described system load is greater than described the first numerical value, controlling described blower fan turns round with maximum speed, if described system load is less than or equal to described the first numerical value, control described blower fan with the rotation speed operation higher than current rotating speed.
Preferably, in above-mentioned control device, described data capture unit comprises:
The first temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe Wen Wendu;
The first computing module, for calculating the difference between described outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining described difference is air-conditioning.
Preferably, in above-mentioned control device, described data capture unit comprises:
The second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning;
The second computing module, for calculating the difference between described indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining described difference is air-conditioning.
Preferably, in above-mentioned control device, described the first processing unit comprises:
The first processing module, for controlling described blower fan with the first rotation speed operation very first time value;
Data acquisition module, for obtaining the running frequency of outdoor environment temperature and air-conditioning;
Rotating speed determination module, determines the second rotating speed of blower fan for the running frequency of the outdoor environment temperature that obtains according to described data acquisition module and air-conditioning;
The second processing module, for controlling described blower fan with second rotation speed operation the second time value.
Preferably, in above-mentioned control device, described rotating speed determination module comprises:
The first comparer module, for contrasting described environment temperature and default temperature range set, determines the temperature range that described outdoor environment temperature is affiliated;
The second comparer module, for comparing the running frequency of described air-conditioning and default frequency separation set, determines the affiliated frequency separation of running frequency of described air-conditioning;
The second rotating speed is determined submodule, for the temperature range according to default and the corresponding relation of frequency separation and rotation speed of fan, determines described the second rotating speed.
On the other hand, the invention discloses a kind of air-conditioning, comprise indoor set and off-premises station, and the blower fan of this off-premises station comprises above-mentioned any control device.
As can be seen here, beneficial effect of the present invention is: the control method of fan of outdoor unit of air conditioner disclosed by the invention, after the running of response open command control blower fan, according to the system load of random time interval or Preset Time interval acquiring air-conditioning, and system load based on air-conditioning is controlled the running of blower fan, in the time that the system load of air-conditioning is less than between predetermined system load region, reduce the rotating speed of blower fan, in the time that the system load of air-conditioning is greater than between predetermined system load region, improve the rotating speed of blower fan, in the time that the system load of air-conditioning is positioned between predetermined system load region, blower fan keeps current rotating speed.The control method of fan of outdoor unit of air conditioner disclosed by the invention, has ensured that air-conditioning blower fan in the time that high capacity moves turns round with higher rotation speed, and blower fan is to turn round compared with the slow-speed of revolution in the time of low load running for air-conditioning, and this has ensured the stable operation of air-conditioning system on the one hand.In the time that air-conditioning load is lower, the rotating speed of blower fan be can reduce on the other hand, thereby noise and the power consumption of blower fan reduced.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the control method of a kind of fan of outdoor unit of air conditioner disclosed by the invention;
Fig. 2 is the flow chart that control blower fan disclosed by the invention is put forward high-revolving method;
Fig. 3 is the flow chart of the method for control blower fan running disclosed by the invention;
Fig. 4 is the flow chart of the control method of another kind of fan of outdoor unit of air conditioner disclosed by the invention;
Fig. 5 is the structural representation of the control device of a kind of fan of outdoor unit of air conditioner disclosed by the invention.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention discloses a kind of control method of fan of outdoor unit of air conditioner, in order to solve in prior art blower fan with the fixed rotating speed problem that noise is large, power consumption is large causing that turns round.The rotating speed of the blower fan of the air-conditioner outdoor unit in the present invention is adjustable, can be frequency conversion fan or adjusting shift blower fan.
Referring to Fig. 1, the flow chart of the control method that Fig. 1 is a kind of fan of outdoor unit of air conditioner disclosed by the invention.This control method comprises:
Step S11: receiving after open command, controlling blower fan running.
After starting of air conditioner, the control device control blower fan entry into service of blower fan.It should be noted that, can control the rotation speed operation of blower fan to preset at initial time, this rotating speed can be the original start of air-conditioning.
Step S12: according to the system load of Preset Time interval acquiring air-conditioning.
After blower fan entry into service, according to the system load of Preset Time interval acquiring air-conditioning.This Preset Time interval can be definite value, the system load of namely periodically obtaining air-conditioning.Can certainly, according to selecting the corresponding time interval running time of air-conditioning, now obtain the operation of the system load of air-conditioning and irregularly carry out.Or obtain system load with the random time interval with computer programme-control.
In enforcement, the system load of air-conditioning can be the absolute value of the difference between outdoor environment temperature and outdoor pipe Wen Wendu.On the casing of outer machine, be provided with temperature sensor, this temperature sensor is for detection of outdoor environment temperature.The also set temperature sensing element of inner side that connects the transfer tube of outer machine and interior machine, this temperature sensor is for detection of outdoor pipe Wen Wendu.After blower fan entry into service, obtain outdoor environment temperature according to Preset Time interval temperature sensor on machine casing from being arranged at, obtain outdoor pipe Wen Wendu according to Preset Time interval from the temperature sensor that is arranged at transfer tube inner side.
The step of obtaining the system load of air-conditioning comprises: obtain outdoor environment temperature and outdoor pipe Wen Wendu; Calculate the difference between this outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining this difference is air-conditioning.
The system load of air-conditioning can also be the absolute value of the difference between indoor temperature and the design temperature of air-conditioning.At indoor set temperature sensing element, this temperature sensor is for detection of indoor temperature.After blower fan entry into service, obtain indoor temperature according to Preset Time interval from being arranged at indoor temperature sensor, obtain the design temperature of air-conditioning from the master controller of air-conditioning according to Preset Time interval.
The step of obtaining the system load of air-conditioning comprises: the design temperature that obtains indoor temperature and air-conditioning; Calculate the difference between this indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining this difference is air-conditioning.
In addition, can also determine according to the running frequency of compressor in air-conditioning the system load of air-conditioning.
Step S13: between comparison system load and predetermined system load region, obtain comparative result.
Between this predetermined system load region, can be the original start of air-conditioning, also can be set according to the residing geographical position of air-conditioning and height above sea level by user.Applicant's process test of many times, this preset difference value interval is set as [3,8).
Step S14: according to the running of comparative result control blower fan.
After obtaining the system load of air-conditioning, all carry out follow-up according to the operation of the running of comparative result control blower fan at every turn.Concrete: in the time that the system load of air-conditioning is positioned between predetermined system load region, execution step S15, in the time that the system load of air-conditioning is greater than between predetermined system load region, execution step S16, in the time that the system load of air-conditioning is less than between predetermined system load region, execution step S18.
Step S15: control blower fan and maintain current rotating speed.
In the time that the system load of air-conditioning is positioned between predetermined system load region, illustrate that the current rotating speed of blower fan is suitable, without adjusting, therefore control blower fan and maintain current rotating speed.
Step S16: judge whether the current rotating speed of blower fan is maximum speed, if current rotating speed is maximum speed, performs step S15, if current rotating speed is not maximum speed, performs step S17.
Step S17: control blower fan and improve rotating speed.
In the time that the system load of air-conditioning is greater than between predetermined system load region, illustrate that the load of air-conditioning system is larger, the rotating speed of blower fan is lower.Under current state, if blower fan is not with maximum speed running, can improve the rotating speed of blower fan, if blower fan current be with maximum speed running, control blower fan and maintain current rotating speed, namely control blower fan and still turn round with maximum speed.
Step S18: judge whether the current rotating speed of blower fan is minimum speed, if current rotating speed is minimum speed, performs step S15, if current rotating speed is not minimum speed, performs step S19.
Step S19: control blower fan and reduce rotating speed.
In the time that the system load of air-conditioning is less than between predetermined system load region, illustrate that the load of air-conditioning system is less, the rotating speed of blower fan is lower.Under current state, if blower fan is not with minimum speed running, can reduce the rotating speed of blower fan, if blower fan current be with minimum speed running, control blower fan and maintain current rotating speed, namely control blower fan and still turn round with minimum speed.
The control method of the above-mentioned disclosed fan of outdoor unit of air conditioner of the present invention, after the running of response open command control blower fan, according to the system load of random time interval or Preset Time interval acquiring air-conditioning, and system load based on air-conditioning is controlled the running of blower fan, in the time that the system load of air-conditioning is less than between predetermined system load region, reduce the rotating speed of blower fan, in the time that the system load of air-conditioning is greater than between predetermined system load region, improve the rotating speed of blower fan, in the time that the system load of air-conditioning is positioned between predetermined system load region, blower fan keeps current rotating speed.The control method of fan of outdoor unit of air conditioner disclosed by the invention, has ensured that air-conditioning blower fan in the time that high capacity moves turns round with higher rotation speed, and blower fan is to turn round compared with the slow-speed of revolution in the time of low load running for air-conditioning, and this has ensured the stable operation of air-conditioning system on the one hand.In the time that air-conditioning load is lower, the rotating speed of blower fan be can reduce on the other hand, thereby noise and the power consumption of blower fan reduced.
In enforcement, step S17 controls blower fan and improves rotating speed, Ke Yiwei: directly control blower fan with the rotation speed operation higher than current rotating speed.
In the time that blower fan is adjusting shift blower fan, can controls blower fan and be converted to another gear running higher than current gear.For example, blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan, in low wind shelves, when determining need to improve the rotating speed of blower fan time, can be controlled blower fan and be converted to the operation of apoplexy shelves.
In the time that blower fan is frequency conversion fan, can calculate the rotating speed of current time blower fan and default increment and value, using this and value as the rotating speed of target of blower fan, control afterwards blower fan with this rotating speed of target running.
Step S19 controls blower fan and reduces rotating speed, Ke Yiwei: directly control blower fan with the rotation speed operation lower than current rotating speed.
In the time that blower fan is adjusting shift blower fan, can controls blower fan and be converted to another gear running lower than current gear.For example, blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan, in low wind shelves, when determining need to reduce the rotating speed of blower fan time, can be controlled blower fan and be converted to quiet shelves operation.
In the time that blower fan is frequency conversion fan, can calculate the difference of rotating speed and the default increment of current time blower fan, the rotating speed of target using this difference as blower fan, controls blower fan afterwards with this rotating speed of target running.
Certainly, step S17 controls blower fan raising rotating speed and can also adopt other modes to realize, and describes below in conjunction with Fig. 2.
Referring to Fig. 2, Fig. 2 is the flow chart that control blower fan disclosed by the invention is put forward high-revolving method.The method comprises:
Step S171: whether the system load that judges air-conditioning is greater than the first numerical value, if the system load of air-conditioning is greater than the first numerical value, performs step S172, otherwise, execution step S173.
Step S172: control blower fan and turn round with maximum speed.
Step S173: control blower fan with the rotation speed operation higher than current rotating speed.
After determining that the system load of air-conditioning is greater than between predetermined system load region, further judge whether the system load of air-conditioning is greater than the first numerical value, if the system load of air-conditioning is greater than the first numerical value, illustrate that the current load of air-conditioning system is very large, now can directly control blower fan and turn round with maximum speed, so that system keeps stablizing and meeting fast-refrigerating demand as early as possible.Step S173 controls the specific implementation process of blower fan with the rotation speed operation higher than current rotating speed, can, referring to description above, not repeat them here.
In addition, in step S11, when receiving after open command, can control blower fan with the first rotation speed operation very first time value, after reaching very first time value, carry out the step of the system load of obtaining air-conditioning.In general, this first rotating speed is the maximum speed of blower fan, to ensure that air-conditioning keeps stablizing and meeting fast-refrigerating demand after opening as early as possible.This very first time value can be 10 minutes.
Certainly, receive after open command, control blower fan running and can also adopt other modes, describe below in conjunction with Fig. 3.
Referring to Fig. 3, Fig. 3 is the flow chart of the method for control blower fan running disclosed by the invention.The method comprises:
Step S111: control blower fan and be worth with the first rotation speed operation very first time.
Step S112: the running frequency of obtaining outdoor environment temperature and air-conditioning.
Step S113: the second rotating speed of determining blower fan according to the running frequency of outdoor environment temperature and air-conditioning.
Wherein, determine the second rotating speed of blower fan according to the running frequency of outdoor environment temperature and air-conditioning, comprising: contrast_environment temperature and default temperature range set, determine the temperature range that outdoor environment temperature is affiliated; Compare the running frequency of air-conditioning and default frequency separation set, determine the affiliated frequency separation of running frequency of air-conditioning; According to default temperature range and the corresponding relation of frequency separation and rotation speed of fan, determine the second rotating speed.
In the control device of off-premises station, prestore multiple temperature ranges and multiple frequency separation, multiple temperature ranges arrange continuously, and multiple temperature ranges form temperature range set, and multiple frequency separation set arrange continuously, and multiple frequency separations form frequency separation set.Meanwhile, the control device of off-premises station also prestores the corresponding relation of temperature range and frequency separation and rotation speed of fan, as shown in table 1.
Table 1
| ? | Frequency < 60HZ | Frequency >=60HZ |
| T outdoor environment temperature >=40 DEG C | High wind shelves | High wind shelves |
| 40 DEG C of 30 DEG C≤T outdoor environment temperature < | Low wind shelves | Apoplexy shelves |
| 30 DEG C of 25 DEG C≤T outdoor environment temperature < | Quiet shelves | Low wind shelves |
| 25 DEG C of T outdoor environment temperature < | Quiet shelves | Quiet shelves |
Wherein, high wind shelves=800 turn, and apoplexy shelves=740 turn, and low wind shelves=710 turn, and quiet shelves=630 turn.
Step S114: control blower fan with second rotation speed operation the second time value.
In the time that control blower fan reaches the second time value with the time of the second rotation speed operation, carry out the step of the system load of obtaining air-conditioning.The second time value can be 3 minutes.
The method of the control blower fan running based on shown in Fig. 3, after opening air-conditioning, first control blower fan with higher rotation speed running very first time value, to ensure that air-conditioning keeps stablizing and meeting fast-refrigerating demand after opening as early as possible, determine afterwards the second rotating speed of blower fan according to the running frequency of outdoor environment temperature and air-conditioning, make the running of blower fan and the frequency of environment and air-conditioning suitable, be conducive to reduce the power consumption of blower fan.
Set forth for the clearer control method to fan of outdoor unit of air conditioner disclosed by the invention, describe below in conjunction with instantiation.
Referring to Fig. 4, the flow chart of the control method that Fig. 4 is another kind of fan of outdoor unit of air conditioner disclosed by the invention.This control method comprises:
Step S41: receiving after open command, controlling blower fan and be worth with the first rotation speed operation very first time.
Step S42: the running frequency of obtaining outdoor environment temperature and air-conditioning.
Step S43: determine the second rotating speed of blower fan according to the running frequency of outdoor environment temperature and air-conditioning, control blower fan with second rotation speed operation the second time value.
Step S44: obtain outdoor environment temperature and outdoor pipe Wen Wendu, calculate the difference of outdoor environment temperature and outdoor pipe Wen Wendu, relatively, between the absolute value of this difference and predetermined system load region, obtain comparative result, according to the running of comparative result control blower fan.In the time that the absolute value of this difference is positioned between predetermined system load region, execution step S45, in the time that the absolute value of this difference is greater than between predetermined system load region, execution step S46, in the time that the absolute value of this difference is less than between predetermined system load region, execution step S47.
Step S45: control blower fan and maintain current rotating speed, continue Preset Time rear steering execution step S44.
Step S46: judge whether the current rotating speed of blower fan is maximum speed, if current rotating speed is maximum speed, performs step S45, if current rotating speed is not maximum speed, performs step S48.
Step S48: whether the difference that judges outdoor environment temperature and outdoor pipe Wen Wendu is greater than the first numerical value, if this difference is greater than the first numerical value, performs step S49, otherwise, execution step S410.
Step S49: control blower fan and turn round with maximum speed, continue Preset Time rear steering execution step S44.
Step S410: control blower fan with the rotation speed operation higher than current rotating speed, continue Preset Time rear steering execution step S44.
Step S47: judge whether the current rotating speed of blower fan is minimum speed, if current rotating speed is minimum speed, performs step S45, if current rotating speed is not minimum speed, performs step S411.
Step S411: control blower fan and reduce rotating speed, continue Preset Time rear steering execution step S44.
The above-mentioned control method that discloses fan of outdoor unit of air conditioner of the present invention, corresponding the present invention also discloses the control device of fan of outdoor unit of air conditioner, to realize the method.
Referring to Fig. 5, the structural representation of the control device that Fig. 5 is a kind of fan of outdoor unit of air conditioner disclosed by the invention.This control device comprises the first processing unit 1, data capture unit 2, data processing unit 3, the first control module 4, the second control module 5 and the 3rd control module 6.
Wherein:
The first processing unit 1, for receiving after open command, controls blower fan running.
Data capture unit 2, for according to the system load of random time interval or Preset Time interval acquiring air-conditioning.This Preset Time interval can be definite value, the system load that namely data capture unit 2 periodically obtains air-conditioning.Can certainly be according to selecting the corresponding time interval running time of air-conditioning, the operation that now data capture unit 2 obtains the system load of air-conditioning is irregularly carried out.
Data processing unit 3, for comparing between the system load and predetermined system load region of air-conditioning, obtains comparative result.
The first control module 4, for in the time that the system load of air-conditioning is greater than between predetermined system load region, judge whether the current rotating speed of blower fan is maximum (top) speed, if current rotating speed is maximum speed, control blower fan and maintain current rotating speed, if current rotating speed is not maximum speed, controls blower fan and improve rotating speed.
The second control module 5, when being positioned between predetermined system load region in the system load of air-conditioning, controlling blower fan and maintains current rotating speed.
The 3rd control module 6, for in the time that the system load of air-conditioning is less than between predetermined system load region, judge whether the current rotating speed of blower fan is minimum speed, if current rotating speed is minimum speed, control blower fan and maintain current rotating speed, if current rotating speed is not minimum speed, controls blower fan and reduce rotating speed.
The control device of the above-mentioned disclosed fan of outdoor unit of air conditioner of the present invention, after the first processing unit 1 responds the running of open command control blower fan, data capture unit 2 is according to the system load of random time interval or Preset Time interval acquiring air-conditioning, and system load based on air-conditioning is controlled the running of blower fan, in the time that the system load of air-conditioning is less than between predetermined system load region, reduce the rotating speed of blower fan, in the time that the system load of air-conditioning is greater than between predetermined system load region, improve the rotating speed of blower fan, in the time that the system load of air-conditioning is positioned between predetermined system load region, control blower fan and keep current rotating speed.The control device of fan of outdoor unit of air conditioner disclosed by the invention, has ensured that air-conditioning blower fan in the time that high capacity moves turns round with higher rotation speed, and blower fan is to turn round compared with the slow-speed of revolution in the time of low load running for air-conditioning, and this has ensured the stable operation of air-conditioning system on the one hand.In the time that air-conditioning load is lower, the rotating speed of blower fan be can reduce on the other hand, thereby noise and the power consumption of blower fan reduced.
In enforcement, the system load of air-conditioning can be the absolute value of the difference between outdoor environment temperature and outdoor pipe Wen Wendu, and data capture unit 2 comprises: the first temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe Wen Wendu; The first computing module, for calculating the difference between outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining this difference is air-conditioning.
In addition, the system load of air-conditioning can be also the absolute value of the difference between indoor temperature and the design temperature of air-conditioning, and data capture unit 2 comprises: the second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning; The second computing module, for calculating the difference between indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining this difference is air-conditioning.
In enforcement, the first control module 4 is controlled blower fan and is improved rotating speed, Ke Yiwei: directly control blower fan with the rotation speed operation higher than current rotating speed.
In the time that blower fan is adjusting shift blower fan, can controls blower fan and be converted to another gear running higher than current gear.For example, blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan, in low wind shelves, when determining need to improve the rotating speed of blower fan time, can be controlled blower fan and be converted to the operation of apoplexy shelves.
In the time that blower fan is frequency conversion fan, can calculate the rotating speed of current time blower fan and default increment and value, using this and value as the rotating speed of target of blower fan, control afterwards blower fan with this rotating speed of target running.
Certainly, the first control module 4 can also adopt other mode control blower fans to improve rotating speed.For example: the first control module 4 comprises the first control module, the first control module for judging whether the system load of air-conditioning is greater than the first numerical value in the time that definite current rotating speed is not maximum (top) speed, if the system load of air-conditioning is greater than the first numerical value, controlling blower fan turns round with maximum speed, if the system load of air-conditioning is less than or equal to the first numerical value, control blower fan with the rotation speed operation higher than current rotating speed.
The first processing unit 1 is receiving after open command, can adopt the running of various ways control blower fan.Accordingly, the first processing unit 1 has various structures.
For example:
The first processing unit 1 comprises the first processing module, and this first processing module is used for controlling blower fan with the first rotation speed operation very first time value.The first processing unit 1 is controlled blower fan with the first rotation speed operation very first time value, carries out the step of the system load of obtaining air-conditioning after reaching very first time value.In general, this first rotating speed is the maximum speed of blower fan, to ensure that air-conditioning keeps stablizing and meeting fast-refrigerating demand after opening as early as possible.This very first time value can be 10 minutes.
Or the first processing unit 1 comprises the first processing module, data acquisition module, rotating speed determination module and the second processing module.Wherein, the first processing module is used for controlling blower fan with the first rotation speed operation very first time value.Data acquisition module is for obtaining the running frequency of outdoor environment temperature and air-conditioning, rotating speed determination module is determined the second rotating speed of blower fan for the running frequency of the outdoor environment temperature that obtains according to data acquisition module and air-conditioning, the second processing module is used for controlling blower fan with second rotation speed operation the second time value.
Rotating speed determination module comprises: the first comparer module, for contrast_environment temperature and default temperature range set, determine the temperature range that outdoor environment temperature is affiliated; The second comparer module, for comparing the running frequency of air-conditioning and default frequency separation set, determines the affiliated frequency separation of running frequency of air-conditioning; The second rotating speed is determined submodule, for the temperature range according to default and the corresponding relation of frequency separation and rotation speed of fan, determines the second rotating speed.
The present invention also discloses a kind of air-conditioning, and this air-conditioning comprises indoor set and off-premises station, and wherein the blower fan of off-premises station comprises above-mentioned disclosed any one control device of the present invention.Air-conditioning disclosed by the invention, according to the rotating speed of system load control blower fan, air-conditioning blower fan in the time that high capacity moves turns round with higher rotation speed, and blower fan is to turn round compared with the slow-speed of revolution in the time of low load running for air-conditioning, and this has ensured the stable operation of air-conditioning system on the one hand.In the time that air-conditioning load is lower, the rotating speed of blower fan be can reduce on the other hand, thereby noise and the power consumption of blower fan reduced.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises key element and also have other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed device of embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates referring to method part.
Professional can also further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (13)
1. a control method for fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable, it is characterized in that, and described control method comprises:
Receiving after open command, controlling described blower fan running;
According to the system load of random time interval or Preset Time interval acquiring air-conditioning;
Between more described system load and predetermined system load region, obtain comparative result;
According to the running of blower fan described in comparative result control;
In the time that described system load is greater than between described predetermined system load region, judge that whether the current rotating speed of described blower fan is maximum (top) speed, if current rotating speed is maximum speed, controls described blower fan and maintains current rotating speed, if current rotating speed is not maximum speed, controls described blower fan and improve rotating speed;
In the time that described system load is positioned at described default load interval, controls described blower fan and maintain current rotating speed;
In the time that described system load is less than described default load interval, judge that whether the current rotating speed of described blower fan is minimum speed, if current rotating speed is minimum speed, controls described blower fan and maintains current rotating speed, if current rotating speed is not minimum speed, controls described blower fan and reduce rotating speed.
2. the control method of fan of outdoor unit of air conditioner according to claim 1, is characterized in that, the described blower fan of described control improves rotating speed, comprising:
Judge whether described system load is greater than the first numerical value;
If described system load is greater than described the first numerical value, controls described blower fan and turn round with maximum speed;
If described system load is less than or equal to described the first numerical value, control described blower fan with the rotation speed operation higher than current rotating speed.
3. the control method of fan of outdoor unit of air conditioner according to claim 2, is characterized in that, obtains the system load of air-conditioning, comprising:
Obtain outdoor environment temperature and outdoor pipe Wen Wendu;
Calculate the difference between described outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining described difference is air-conditioning.
4. the control method of fan of outdoor unit of air conditioner according to claim 2, is characterized in that, obtains the system load of air-conditioning, comprising:
Obtain the design temperature of indoor temperature and air-conditioning;
Calculate the difference between described indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining described difference is air-conditioning.
5. according to the control method of the fan of outdoor unit of air conditioner described in any one in claim 1 to 4, it is characterized in that, the described blower fan running of described control, comprising:
Control described blower fan with the first rotation speed operation very first time value;
Obtain the running frequency of outdoor environment temperature and air-conditioning;
Determine the second rotating speed of described blower fan according to the running frequency of described outdoor environment temperature and air-conditioning;
Control described blower fan with second rotation speed operation the second time value.
6. the control method of fan of outdoor unit of air conditioner according to claim 5, is characterized in that, the described running frequency according to described outdoor environment temperature and air-conditioning is determined the second rotating speed of described blower fan, comprising:
Contrast described environment temperature and default temperature range set, determine the temperature range that described outdoor environment temperature is affiliated;
Compare the running frequency of described air-conditioning and default frequency separation set, determine the affiliated frequency separation of running frequency of described air-conditioning;
According to default temperature range and the corresponding relation of frequency separation and rotation speed of fan, determine described the second rotating speed.
7. a control device for fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable, it is characterized in that, and described control device comprises:
The first processing unit, for receiving after open command, controls described blower fan running;
Data capture unit, for according to the system load of random time interval or Preset Time interval acquiring air-conditioning;
Data processing unit, between more described system load and predetermined system load region, obtains comparative result;
The first control module, for in the time that described system load is greater than between described predetermined system load region, judge whether the current rotating speed of described blower fan is maximum (top) speed, if current rotating speed is maximum speed, control described blower fan and maintain current rotating speed, if current rotating speed is not maximum speed, controls described blower fan and improve rotating speed;
The second control module, when be positioned between described predetermined system load region in described system load, control described blower fan and maintains current rotating speed;
The 3rd control module, for in the time that described system load is less than between described predetermined system load region, judge whether the current rotating speed of described blower fan is minimum speed, if current rotating speed is minimum speed, control described blower fan and maintain current rotating speed, if current rotating speed is not minimum speed, controls described blower fan and reduce rotating speed.
8. the control device of fan of outdoor unit of air conditioner according to claim 7, is characterized in that, described the first control module comprises the first control module,
Described the first control module is in the time that definite current rotating speed is not maximum (top) speed, judge whether described system load is greater than the first numerical value, if described system load is greater than described the first numerical value, controlling described blower fan turns round with maximum speed, if described system load is less than or equal to described the first numerical value, control described blower fan with the rotation speed operation higher than current rotating speed.
9. the control device of fan of outdoor unit of air conditioner according to claim 8, is characterized in that, described data capture unit comprises:
The first temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe Wen Wendu;
The first computing module, for calculating the difference between described outdoor environment temperature and outdoor pipe Wen Wendu, the system load that the absolute value of determining described difference is air-conditioning.
10. the control device of fan of outdoor unit of air conditioner according to claim 8, is characterized in that, described data capture unit comprises:
The second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning;
The second computing module, for calculating the difference between described indoor temperature and the design temperature of air-conditioning, the system load that the absolute value of determining described difference is air-conditioning.
11. according to the control device of the fan of outdoor unit of air conditioner described in any one in claim 7 to 10, it is characterized in that, described the first processing unit comprises:
The first processing module, for controlling described blower fan with the first rotation speed operation very first time value;
Data acquisition module, for obtaining the running frequency of outdoor environment temperature and air-conditioning;
Rotating speed determination module, determines the second rotating speed of blower fan for the running frequency of the outdoor environment temperature that obtains according to described data acquisition module and air-conditioning;
The second processing module, for controlling described blower fan with second rotation speed operation the second time value.
The control device of 12. fan of outdoor unit of air conditioner according to claim 11, is characterized in that, described rotating speed determination module comprises:
The first comparer module, for contrasting described environment temperature and default temperature range set, determines the temperature range that described outdoor environment temperature is affiliated;
The second comparer module, for comparing the running frequency of described air-conditioning and default frequency separation set, determines the affiliated frequency separation of running frequency of described air-conditioning;
The second rotating speed is determined submodule, for the temperature range according to default and the corresponding relation of frequency separation and rotation speed of fan, determines described the second rotating speed.
13. 1 kinds of air-conditionings, comprise indoor set and off-premises station, it is characterized in that, the blower fan of described off-premises station comprises the control device as described in any one in claim 7 to 12.
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| CN201310157717.2A CN104121658B (en) | 2013-04-28 | 2013-04-28 | Control method and device for draught fan of outdoor unit of air conditioner and air conditioner |
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| CN201310157717.2A CN104121658B (en) | 2013-04-28 | 2013-04-28 | Control method and device for draught fan of outdoor unit of air conditioner and air conditioner |
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| CN104121658B CN104121658B (en) | 2017-02-08 |
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