CN104121658B - Control method and control device for fan of air conditioner outdoor unit and air conditioner - Google Patents
Control method and control device for fan of air conditioner outdoor unit and air conditioner Download PDFInfo
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- CN104121658B CN104121658B CN201310157717.2A CN201310157717A CN104121658B CN 104121658 B CN104121658 B CN 104121658B CN 201310157717 A CN201310157717 A CN 201310157717A CN 104121658 B CN104121658 B CN 104121658B
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- 238000004378 air conditioning Methods 0.000 claims abstract description 152
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- 238000000926 separation method Methods 0.000 claims description 20
- 238000013461 design Methods 0.000 claims description 16
- 230000000052 comparative effect Effects 0.000 claims description 12
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Abstract
The invention discloses a control method of a fan of an air conditioner outdoor unit, which comprises the steps of responding to a starting instruction to control the fan to operate, then obtaining the system load of an air conditioner according to a random time interval or a preset time interval, controlling the operation of the fan based on the system load of the air conditioner, reducing the rotating speed of the fan when the system load of the air conditioner is smaller than a preset system load interval, and increasing the rotating speed of the fan when the system load of the air conditioner is larger than the preset system load interval. The control method of the fan of the air conditioner outdoor unit ensures that the fan runs at a higher rotating speed when the air conditioner runs at a high load and the fan runs at a lower rotating speed when the air conditioner runs at a low load, thereby not only ensuring the stable running of an air conditioning system, but also reducing the rotating speed of the fan when the air conditioner runs at a low load, and further reducing the noise and the power consumption of the fan. The invention also discloses a corresponding control device of the air conditioner outdoor unit fan and an air conditioner.
Description
Technical field
The invention belongs to air conditioner controlling technology field, more particularly, to a kind of control method of fan of outdoor unit of air conditioner, control
Device and air-conditioning.
Background technology
With the raising of people's living standard, increasing family selection air-conditioning is as the capital equipment of heating cooling.
At present, during operation of air conditioner, the blower fan of off-premises station using fixing rotation speed operation, in order to ensure that air-conditioning can stably transport
OK, this rotating speed is to be in, according to air-conditioning, the high rotating speed determine under high load condition.
The existing control mode existing defects for fan of outdoor unit of air conditioner：The rotating speed of blower fan is fixed, and this rotating speed
The demand being according to air-conditioning under high load condition determines, when the load of air-conditioning is relatively low, blower fan still runs up, and can produce relatively
Big noise, and power consumption is larger, and energy-saving effect is poor.
Content of the invention
In view of this, it is an object of the invention to provide a kind of control method of fan of outdoor unit of air conditioner and control device,
To solve the problems, such as prior art wind machine so that the fixed rotating speed noise that causes of operating is big, power consumption is big.
For achieving the above object, the present invention provides following technical scheme：
A kind of control method of fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable, and described control method includes：
After receiving open command, control described blower fan operating；
Obtain the system load of air-conditioning according to random time intervals or prefixed time interval；
Relatively described system load and predetermined system load are interval, obtain comparative result；
Control the operating of described blower fan according to comparative result；
When described system load be more than the load of described predetermined system interval when, 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 to maintain current rotating speed, if current rotating speed is not
High rotating speed, then control described blower fan to improve rotating speed；
When described system load is located at described default load interval, described blower fan is controlled to maintain current rotating speed；
When described system load is less than described default load interval, judge whether the current rotating speed of described blower fan is minimum
Rotating speed, if current rotating speed is minimum speed, controls described blower fan to maintain current rotating speed, if current rotating speed is not minimum turn
Speed, then control described blower fan to reduce rotating speed.
Preferably, in above-mentioned control method, described control described blower fan to improve rotating speed, including：
Judge whether described system load is more than the first numerical value；
If described system load is more than described first numerical value, described blower fan is controlled to operate with maximum speed；
If described system load is less than or equal to described first numerical value, control described blower fan with turning higher than current rotating speed
Speed operating.
Preferably, in above-mentioned control method, obtain the system load of air-conditioning, including：
Obtain outdoor environment temperature and outdoor pipe temperature temperature；
Calculate the difference between described outdoor environment temperature and outdoor pipe temperature temperature, determine that the absolute value of described difference is sky
The system load adjusted.
Preferably, in above-mentioned control method, obtain the system load of air-conditioning, including：
Obtain the design temperature of indoor temperature and air-conditioning；
Calculate the difference between described indoor temperature and the design temperature of air-conditioning, determine that the absolute value of described difference is air-conditioning
System load.
Preferably, in above-mentioned control method, described control the operating of described blower fan, including：
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 determines
Second rotating speed of described blower fan, including：
Contrast described environment temperature and default temperature range set, determine the humidity province belonging to described outdoor environment temperature
Between；
Compare the running frequency of described air-conditioning and default frequency separation set, determine belonging to the running frequency of described air-conditioning
Frequency separation；
According to default temperature range and frequency separation and the corresponding relation of rotation speed of fan, determine described 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,
Described control device includes：
First processing units, for after receiving open command, controlling described blower fan operating；
Data capture unit, for obtaining the system load of air-conditioning according to random time intervals or prefixed time interval；
Data processing unit, interval for relatively described system load and predetermined system load, obtain comparative result；
First control unit, for when described system load is more than described predetermined system load interval, judging described wind
Whether the current rotating speed of machine is maximum (top) speed, if current rotating speed is maximum speed, controls described blower fan to maintain current rotating speed,
If current rotating speed is not maximum speed, described blower fan is controlled to improve rotating speed；
Second control unit, for when described system load is located at described predetermined system load interval, controlling described wind
Machine maintains current rotating speed；
3rd control unit, for when described system load is less than described predetermined system load interval, judging described wind
Whether the current rotating speed of machine is minimum speed, if current rotating speed is minimum speed, controls described blower fan to maintain current rotating speed,
If current rotating speed is not minimum speed, described blower fan is controlled to reduce rotating speed.
Preferably, in above-mentioned control device, described first control unit includes the first control module,
Described first control module is used for, when determining that current rotating speed is not maximum (top) speed, judging that described system load is
No be more than the first numerical value, if described system load be more than described first numerical value, control described blower fan with maximum speed operate, if
Described system load is less than or equal to described first numerical value, then control described blower fan with the rotation speed operation higher than current rotating speed.
Preferably, in above-mentioned control device, described data capture unit includes：
First temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe temperature temperature；
First computing module, for calculating the difference between described outdoor environment temperature and outdoor pipe temperature temperature, determines institute
The absolute value stating difference is the system load of air-conditioning.
Preferably, in above-mentioned control device, described data capture unit includes：
Second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning；
Second computing module, for calculating the difference between described indoor temperature and the design temperature of air-conditioning, determines described
The absolute value of difference is the system load of air-conditioning.
Preferably, in above-mentioned control device, described first processing units include：
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 determining module, for the operation frequency of the outdoor environment temperature that obtained according to described data acquisition module and air-conditioning
Rate determines the second rotating speed of blower fan；
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 determining module includes：
First comparison submodule, for contrasting described environment temperature and default temperature range set, determines described outdoor
Temperature range belonging to environment temperature；
Second comparison submodule, for comparing the running frequency of described air-conditioning and default frequency separation set, determines institute
State the frequency separation belonging to the running frequency of air-conditioning；
Second rotating speed determination sub-module, for closing according to default temperature range and frequency separation are corresponding with rotation speed of fan
System, determines described second rotating speed.
On the other hand, the invention discloses a kind of air-conditioning, including indoor set and off-premises station, and the blower fan bag of this off-premises station
Include any of the above-described kind of control device.
As can be seen here, beneficial effects of the present invention are：The control method of fan of outdoor unit of air conditioner disclosed by the invention, response
The system load of air-conditioning after open command controls blower fan operating, is obtained according to random time intervals or prefixed time interval, and
System load based on air-conditioning is controlled to the operating of blower fan, when the system load of air-conditioning is less than predetermined system load interval
When, reduce the rotating speed of blower fan, when the system load of air-conditioning is more than predetermined system load interval, improves the rotating speed of blower fan, work as sky
When the system load adjusted is located at predetermined system load interval, blower fan keeps current rotating speed.Air-conditioner outdoor unit wind disclosed by the invention
The control method of machine it is ensured that air-conditioning blower fan when high capacity runs is operated with higher rotation speed, air-conditioning wind when low-load is run
With relatively low rotation speed operation, on the one hand this ensure that the stable operation of air-conditioning system to machine.On the other hand when air conditioner load is relatively low, can
Reduce the rotating speed of blower fan, thus reducing noise and the power consumption of blower fan.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of flow chart of the control method of fan of outdoor unit of air conditioner disclosed by the invention；
Fig. 2 is the flow chart controlling blower fan to put forward high-revolving method disclosed by the invention；
Fig. 3 is the flow chart of the method controlling blower fan operating disclosed by the invention；
Fig. 4 is the flow chart of the control method of another kind fan of outdoor unit of air conditioner disclosed by the invention；
Fig. 5 is a kind of structural representation of the control device of fan of outdoor unit of air conditioner disclosed by the invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into 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 prior art wind machine with fixation
The problem that the noise that rotation speed operation causes is big, power consumption is big.The rotating speed of the blower fan of the air-conditioner outdoor unit in the present invention is adjustable, Ke Yishi
Frequency conversion fan or adjusting shift blower fan.
Referring to Fig. 1, Fig. 1 is a kind of flow chart of the control method of fan of outdoor unit of air conditioner disclosed by the invention.This control
Method includes：
Step S11：After receiving open command, control blower fan operating.
After starting of air conditioner, the control device of blower fan controls blower fan to start running.It should be noted that in initial time
With default rotation speed operation, this rotating speed can be the original start of air-conditioning to controllable blower fan.
Step S12：Obtain the system load of air-conditioning according to prefixed time interval.
The system load of air-conditioning after blower fan starts running, is obtained according to prefixed time interval.This prefixed time interval
Can be definite value, that is, periodically obtain the system load of air-conditioning.Phase can certainly be selected according to the run time of air-conditioning
The time interval answered, the operation now obtaining the system load of air-conditioning is irregularly carried out.Or use computer programme-control
Obtain system load at random time intervals.
In enforcement, the system load of air-conditioning can be absolute for the difference between outdoor environment temperature and outdoor pipe temperature temperature
Value.It is provided with temperature sensor, this temperature sensor is used for detecting outdoor environment temperature on the casing of outer machine.Connect outer machine
It is also provided with temperature sensor with the inner side of the transfer tube of interior machine, this temperature sensor is used for sensing chamber's outer tube temperature temperature.?
After blower fan starts running, obtain outdoor environment temperature according to prefixed time interval from the temperature sensor being arranged at outer machine casing
Degree, obtains outdoor pipe temperature temperature according to prefixed time interval from being arranged at the temperature sensor inside transfer tube.
The step obtaining the system load of air-conditioning includes：Obtain outdoor environment temperature and outdoor pipe temperature temperature；Calculate this room
Difference between external environment temperature and outdoor pipe temperature temperature, determines that the absolute value of this difference is the system load of 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.In room
Interior setting temperature sensor, this temperature sensor is used for detecting the temperature of interior.After blower fan starts running, according to pre-
If time interval obtains indoor temperature from the temperature sensor being arranged at interior, according to prefixed time interval from the master control of air-conditioning
Device processed obtains the design temperature of air-conditioning.
The step obtaining the system load of air-conditioning includes：Obtain the design temperature of indoor temperature and air-conditioning；Calculate this interior
Difference between temperature and the design temperature of air-conditioning, determines that the absolute value of this difference is the system load of air-conditioning.
Furthermore it is also possible to determine the system load of air-conditioning according to the running frequency of compressor in air-conditioning.
Step S13：Comparison system load and predetermined system load are interval, obtain comparative result.
The load of this predetermined system is interval can be air-conditioning original start it is also possible to by user the geography according to residing for air-conditioning
Position and height above sea level set.Applicant, through test of many times, this preset difference value interval is set as [3,8）.
Step S14：Control the operating of blower fan according to comparative result.
After each system load obtaining air-conditioning, it is carried out the behaviour of the follow-up operating controlling blower fan according to comparative result
Make.Specifically：When the system load of air-conditioning is located at predetermined system load interval, execution step S15, when the system load of air-conditioning
When interval more than predetermined system load, execution step S16, when the system load of air-conditioning is less than predetermined system load interval, hold
Row step S18.
Step S15：Blower fan is controlled to maintain current rotating speed.
When the system load of air-conditioning is located at predetermined system load interval, illustrate that the current rotating speed of blower fan is suitable, no
Need to be adjusted, therefore control blower fan to 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, hold
Row step S15, if current rotating speed is not maximum speed, execution step S17.
Step S17：Blower fan is controlled to improve rotating speed.
When the system load of air-conditioning is more than predetermined system load interval, illustrate that the load of air-conditioning system is larger, blower fan
Rotating speed is relatively low.In the state of current, if blower fan is not with maximum speed operating, the rotating speed of blower fan can be improved, if
Blower fan is currently with maximum speed operating, then control blower fan to maintain current rotating speed, that is, control blower fan still to transport with maximum speed
Turn.
Step S18：Judge whether the current rotating speed of blower fan is minimum speed, if current rotating speed is minimum speed, hold
Row step S15, if current rotating speed is not minimum speed, execution step S19.
Step S19：Blower fan is controlled to reduce rotating speed.
When the system load of air-conditioning is less than predetermined system load interval, illustrate that the load of air-conditioning system is less, blower fan
Rotating speed is relatively low.In the state of current, if blower fan is not with minimum speed operating, the rotating speed of blower fan can be reduced, if
Blower fan is currently with minimum speed operating, then control blower fan to maintain current rotating speed, that is, control blower fan still to transport with minimum speed
Turn.
The control method of present invention fan of outdoor unit of air conditioner disclosed above, response open command controls blower fan to operate it
Afterwards, obtain the system load of air-conditioning according to random time intervals or prefixed time interval, and the system load based on air-conditioning is to wind
The operating of machine is controlled, and when the system load of air-conditioning is less than predetermined system load interval, reduces the rotating speed of blower fan, works as air-conditioning
System load be more than predetermined system load interval when, improve the rotating speed of blower fan, when the system load of air-conditioning is located at predetermined system
When load is interval, blower fan keeps current rotating speed.The control method of fan of outdoor unit of air conditioner disclosed by the invention is it is ensured that air-conditioning exists
High capacity run when blower fan with higher rotation speed operate, air-conditioning when low-load is run blower fan with relatively low rotation speed operation, this one side
Ensure that the stable operation of air-conditioning system.On the other hand when air conditioner load is relatively low, it is possible to decrease the rotating speed of blower fan, thus reducing wind
The noise of machine and power consumption.
In enforcement, step S17 controls blower fan to improve rotating speed, Ke Yiwei：Directly control blower fan with turning higher than current rotating speed
Speed operating.
When blower fan is for adjusting shift blower fan, blower fan can be controlled to change to another gear operating higher than current gear.Example
As blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan is in low wind shelves, when determination needs to improve wind
During the rotating speed of machine, blower fan can be controlled to change and to run to apoplexy shelves.
When blower fan is for frequency conversion fan, the rotating speed of current time blower fan and the value preset of preset increments can be calculated, should and
Value, as the rotating speed of target of blower fan, controls blower fan to operate with this rotating speed of target afterwards.
Step S19 controls blower fan to reduce rotating speed, Ke Yiwei：Directly control blower fan with the rotation speed operation less than current rotating speed.
When blower fan is for adjusting shift blower fan, blower fan can be controlled to change to another gear operating less than current gear.Example
As blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan is in low wind shelves, when determination needs to reduce wind
During the rotating speed of machine, blower fan can be controlled to change and to run to quiet shelves.
When blower fan is for frequency conversion fan, the rotating speed of current time blower fan and the difference of preset increments can be calculated, this is poor
Value, as the rotating speed of target of blower fan, controls blower fan to operate with this rotating speed of target afterwards.
Certainly, step S17 is controlled blower fan to improve rotating speed and can also be realized using other modes, is said with reference to Fig. 2
Bright.
Referring to Fig. 2, Fig. 2 is the flow chart controlling blower fan to put forward high-revolving method disclosed by the invention.The method includes：
Step S171：Judge whether the system load of air-conditioning is more than the first numerical value, if the system load of air-conditioning is more than first
Numerical value, then execution step S172, otherwise, execution step S173.
Step S172：Blower fan is controlled to operate with maximum speed.
Step S173：Control blower fan with the rotation speed operation higher than current rotating speed.
After the system load determining air-conditioning is more than predetermined system load interval, determine whether that the system load of air-conditioning is
No be more than the first numerical value, if the system load of air-conditioning be more than the first numerical value, illustrate that the current load of air-conditioning system is very big, now
Blower fan can be directly controlled to operate with maximum speed, so that system keeps stable as early as possible and meets fast-refrigerating demand.Step
S173 controls blower fan to implement process higher than the rotation speed operation of current rotating speed, may refer to described above, here is not
Repeat again.
In addition, in step S11, after receiving open command, blower fan can be controlled with the first rotation speed operation very first time
Value, the step that execution obtains the system load of air-conditioning after reaching very first time value.In general, this first rotating speed is wind
The maximum speed of machine, to ensure that after air-conditioning is opened, holding is stable as early as possible and meets fast-refrigerating demand.This very first time value can
Think 10 minutes.
Certainly, after receiving open command, control blower fan operating can also adopt other modes, carry out with reference to Fig. 3
Explanation.
Referring to Fig. 3, Fig. 3 is the flow chart of the method controlling blower fan operating disclosed by the invention.The method includes：
Step S111：Blower fan is controlled to be worth with the first rotation speed operation very first time.
Step S112：Obtain the running frequency of outdoor environment temperature and air-conditioning.
Step S113：Determine the second rotating speed of blower fan according to the running frequency of outdoor environment temperature and air-conditioning.
Wherein, the second rotating speed of blower fan is determined according to the running frequency of outdoor environment temperature and air-conditioning, including：Contrast_environment
Temperature and default temperature range set, determine the temperature range belonging to outdoor environment temperature；Compare air-conditioning running frequency and
Default frequency separation set, determines the frequency separation belonging to the running frequency of air-conditioning；According to default temperature range and frequency
The interval corresponding relation with rotation speed of fan, determines the second rotating speed.
Prestore multiple temperature ranges and multiple frequency separation in the control device of off-premises station, multiple temperature ranges are continuous
Setting, multiple temperature ranges constitute temperature range set, and multiple frequency separation set are continuously arranged, and multiple frequency separations constitute frequency
The interval set of rate.Meanwhile, the control device of off-premises station also prestores temperature range and frequency separation pass corresponding with rotation speed of fan
System, 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, apoplexy shelves=740 turn, low wind shelves=710 turn, quiet shelves=630 turn.
Step S114：Control blower fan with second rotation speed operation the second time value.
When controlling blower fan to reach the second time value with the time of the second rotation speed operation, execution obtains the system load of air-conditioning
Step.Second time value can be 3 minutes.
Based on the method controlling blower fan operating shown in Fig. 3, after opening air-conditioning, control blower fan first with higher rotation speed
Operating very first time value, to ensure that after air-conditioning is opened, holding is stable as early as possible and meets fast-refrigerating demand, afterwards according to outdoor
The running frequency of environment temperature and air-conditioning determines the second rotating speed of blower fan so that the frequency phase of the operating of blower fan and environment and air-conditioning
Adaptation, advantageously reduces the power consumption of blower fan.
In order to the clearer control method to fan of outdoor unit of air conditioner disclosed by the invention is illustrated, with reference to tool
Body example illustrates.
Referring to Fig. 4, Fig. 4 is the flow chart of the control method of another kind fan of outdoor unit of air conditioner disclosed by the invention.This control
Method processed includes：
Step S41：After receiving open command, blower fan is controlled to be worth with the first rotation speed operation very first time.
Step S42：Obtain the running frequency of 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 temperature temperature, calculate outdoor environment temperature and outdoor pipe temperature temperature
Difference, compare the absolute value of this difference and predetermined system load be interval, obtain comparative result, blower fan is controlled according to comparative result
Operating.When the absolute value of this difference is located at predetermined system load interval, execution step S45, when the absolute value of this difference is big
When predetermined system load is interval, execution step S46, when the absolute value of this difference is less than predetermined system load interval, execution
Step S47.
Step S45：Control blower fan to 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, hold
Row step S45, if current rotating speed is not maximum speed, execution step S48.
Step S48：Judge whether outdoor environment temperature and the difference of outdoor pipe temperature temperature are more than the first numerical value, if this difference
More than the first numerical value, then execution step S49, otherwise, execution step S410.
Step S49：Control blower fan to operate 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, hold
Row step S45, if current rotating speed is not minimum speed, execution step S411.
Step S411：Control blower fan to reduce rotating speed, continue Preset Time rear steering execution step S44.
The present invention control method of fan of outdoor unit of air conditioner disclosed above, corresponding invention additionally discloses air-conditioner outdoor unit
The control device of blower fan, to realize the method.
Referring to Fig. 5, Fig. 5 is a kind of structural representation of the control device of fan of outdoor unit of air conditioner disclosed by the invention.Should
Control device includes first processing units 1, data capture unit 2, data processing unit 3, first control unit the 4, second control
Unit 5 and the 3rd control unit 6.
Wherein：
First processing units 1, for after receiving open command, controlling blower fan operating.
Data capture unit 2, for obtaining the system load of air-conditioning according to random time intervals or prefixed time interval.Should
Prefixed time interval can be definite value, that is, data capture unit 2 periodically obtains the system load of air-conditioning.Can certainly
Run time according to air-conditioning selects corresponding time interval, and now data capture unit 2 obtains the behaviour of the system load of air-conditioning
Work is irregularly carried out.
Data processing unit 3, system load and predetermined system load for comparing air-conditioning are interval, obtain comparative result.
First control unit 4, when being more than predetermined system load interval for the system load in air-conditioning, judges that blower fan is current
Rotating speed whether be maximum (top) speed, if current rotating speed is maximum speed, control blower fan to maintain current rotating speed, if current turn
Speed is not maximum speed, then control blower fan to improve rotating speed.
Second control unit 5, when being located at predetermined system load interval for the system load in air-conditioning, controls blower fan to maintain
Current rotating speed.
3rd control unit 6, when being less than predetermined system load interval for the system load in air-conditioning, judges that blower fan is current
Rotating speed whether be minimum speed, if current rotating speed is minimum speed, control blower fan to maintain current rotating speed, if current turn
Speed is not minimum speed, then control blower fan to reduce rotating speed.
The control device of present invention fan of outdoor unit of air conditioner disclosed above, first processing units 1 respond open command control
After blower fan operating processed, data capture unit 2 obtains the system load of air-conditioning according to random time intervals or prefixed time interval,
And the system load based on air-conditioning is controlled to the operating of blower fan, when the system load of air-conditioning is less than predetermined system load interval
When, reduce the rotating speed of blower fan, when the system load of air-conditioning is more than predetermined system load interval, improves the rotating speed of blower fan, work as sky
When the system load adjusted is located at predetermined system load interval, blower fan is controlled to keep current rotating speed.Air-conditioning disclosed by the invention is outdoor
It is ensured that air-conditioning blower fan when high capacity runs is operated with higher rotation speed, air-conditioning runs the control device of machine blower fan in low-load
With relatively low rotation speed operation, on the one hand this ensure that the stable operation of air-conditioning system to Shi Fengji.On the other hand relatively low in air conditioner load
When, it is possible to decrease the rotating speed of blower fan, thus reducing noise and the power consumption of blower fan.
In enforcement, the system load of air-conditioning can be absolute for the difference between outdoor environment temperature and outdoor pipe temperature temperature
Value, data capture unit 2 includes：First temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe temperature temperature；First
Computing module, for calculating the difference between outdoor environment temperature and outdoor pipe temperature temperature, determines that the absolute value of this difference is sky
The system load adjusted.
In addition, the system load of air-conditioning can also be absolute for the difference between indoor temperature and the design temperature of air-conditioning
Value, data capture unit 2 includes：Second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning；Second meter
Calculate module, for calculating the difference between indoor temperature and the design temperature of air-conditioning, determine that the absolute value of this difference is air-conditioning
System load.
In enforcement, the first control unit 4 controls blower fan to improve rotating speed, Ke Yiwei：Directly control blower fan to be higher than to work as forward
The rotation speed operation of speed.
When blower fan is for adjusting shift blower fan, blower fan can be controlled to change to another gear operating higher than current gear.Example
As blower fan has quiet shelves, low wind shelves, apoplexy shelves and high wind shelves, if current blower fan is in low wind shelves, when determination needs to improve wind
During the rotating speed of machine, blower fan can be controlled to change and to run to apoplexy shelves.
When blower fan is for frequency conversion fan, the rotating speed of current time blower fan and the value preset of preset increments can be calculated, should and
Value, as the rotating speed of target of blower fan, controls blower fan to operate with this rotating speed of target afterwards.
Certainly, the first control unit 4 can also control blower fan to improve rotating speed using other modes.For example：First controls list
Unit 4 includes the first control module, and the first control module is used for judging air-conditioning when the current rotating speed of determination is not maximum (top) speed
Whether system load is more than the first numerical value, if the system load of air-conditioning is more than the first numerical value, controls blower fan to transport with maximum speed
Turn, 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.
First processing units 1, after receiving open command, can control the operating of blower fan using various ways.Accordingly
, first processing units 1 have various structures.
For example：
First processing units 1 include first processing module, and this first processing module is used for controlling blower fan to transport with the first rotating speed
Turn very first time value.First processing units 1 control blower fan to be worth with the first rotation speed operation very first time, are worth it reaching the very first time
The step that execution obtains the system load of air-conditioning afterwards.In general, this first rotating speed is the maximum speed of blower fan, to ensure sky
Tune to open and keep stable after opening as early as possible and meet fast-refrigerating demand.This very first time value can be 10 minutes.
Or, first processing units 1 include first processing module, data acquisition module, at rotating speed determining module and second
Reason module.Wherein, first processing module is used for controlling blower fan with the first rotation speed operation very first time value.Data acquisition module is used for
Obtain the running frequency of outdoor environment temperature and air-conditioning, rotating speed determining module is used for the outdoor ring obtaining according to data acquisition module
The running frequency of border temperature and air-conditioning determines the second rotating speed of blower fan, and Second processing module is used for controlling blower fan to transport with the second rotating speed
Turn the second time value.
Rotating speed determining module includes：First comparison submodule, for contrast_environment temperature and default temperature range set,
Determine the temperature range belonging to outdoor environment temperature；Second comparison submodule, for comparing the running frequency of air-conditioning and default
Frequency separation set, determines the frequency separation belonging to the running frequency of air-conditioning；Second rotating speed determination sub-module, for according to default
Temperature range and frequency separation and rotation speed of fan corresponding relation, determine the second rotating speed.
Invention additionally discloses a kind of air-conditioning, this air-conditioning includes indoor set and off-premises station, and the blower fan of wherein off-premises station includes this
Invent any one control device disclosed above.Air-conditioning disclosed by the invention, controls the rotating speed of blower fan according to system load, empty
Adjust when high capacity runs blower fan with higher rotation speed operating, air-conditioning when low-load is run blower fan with relatively low rotation speed operation, this
Aspect ensure that the stable operation of air-conditioning system.On the other hand when air conditioner load is relatively low, it is possible to decrease the rotating speed of blower fan, thus dropping
The noise of low blower fan and power consumption.
Last in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant meaning
Covering comprising of nonexcludability, so that including a series of process of key elements, method, article or equipment not only include that
A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element being limited by sentence "including a ...", does not arrange
Remove and also there is other identical element in the process including key element, method, article or equipment.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it corresponds to the method disclosed in Example, so description is fairly simple, say referring to method part in place of correlation
Bright.
Professional further appreciates that, in conjunction with the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes composition and the step of each example in the above description according to function.These
Function to be executed with hardware or software mode actually, the application-specific depending on technical scheme and design constraint.Specialty
Technical staff can use different methods to each specific application realize described function, but this realization should
Think beyond the scope of this invention.
The step of the method in conjunction with the embodiments described herein description or algorithm can directly be held with hardware, processor
The software module of row, or the combination of the two is implementing.Software module can be placed in random access memory（RAM）, internal memory, read-only deposit
Reservoir（ROM）, electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In known any other form of storage medium in field.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (13)
1. a kind of control method of fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable it is characterised in that described control method
Including：
After receiving open command, control described blower fan operating；
Obtain the system load of air-conditioning according to random time intervals or prefixed time interval；
Relatively described system load and predetermined system load are interval, obtain comparative result；
Control the operating of described blower fan according to comparative result；
When described system load is more than described predetermined system load interval, judge whether the current rotating speed of described blower fan is maximum
Rotating speed, if current rotating speed is maximum speed, controls described blower fan to maintain current rotating speed, if current rotating speed is not highest turning
Speed, then control described blower fan to improve rotating speed；
When described system load is located at described default load interval, described blower fan is controlled to maintain current rotating speed；
When described system load is less than described default load interval, judge whether the current rotating speed of described blower fan is minimum turn
Speed, if current rotating speed is minimum speed, controls described blower fan to maintain current rotating speed, if current rotating speed is not minimum turn
Speed, then control described blower fan to reduce rotating speed.
2. the control method of fan of outdoor unit of air conditioner according to claim 1 is it is characterised in that the described blower fan of described control
Improve rotating speed, including：
Judge whether described system load is more than the first numerical value；
If described system load is more than described first numerical value, described blower fan is controlled to operate with maximum speed；
If described system load is less than or equal to described first numerical value, control described blower fan with the rotating speed fortune higher than current rotating speed
Turn.
3. the control method of fan of outdoor unit of air conditioner according to claim 2 is it is characterised in that the system obtaining air-conditioning is born
Carry, including：
Obtain outdoor environment temperature and outdoor pipe temperature temperature, described outdoor pipe temperature temperature is the biography with interior machine for the outer machine connecting air-conditioning
Temperature in defeated pipe；
Calculate the difference between described outdoor environment temperature and outdoor pipe temperature temperature, determine that the absolute value of described difference is air-conditioning
System load.
4. the control method of fan of outdoor unit of air conditioner according to claim 2 is it is characterised in that the system obtaining air-conditioning is born
Carry, including：
Obtain the design temperature of indoor temperature and air-conditioning；
Calculate the difference between described indoor temperature and the design temperature of air-conditioning, determine described difference absolute value be air-conditioning be
System load.
5. the control method of fan of outdoor unit of air conditioner according to any one of claim 1 to 4 is it is characterised in that described
Control described blower fan operating, including：
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. fan of outdoor unit of air conditioner according to claim 5 control method it is characterised in that described according to described outdoor
The running frequency of environment temperature and air-conditioning determines the second rotating speed of described blower fan, including：
Contrast described environment temperature and default temperature range set, determine the temperature range belonging to described outdoor environment temperature；
Compare the running frequency of described air-conditioning and default frequency separation set, determine the frequency belonging to the running frequency of described air-conditioning
Rate is interval；
According to default temperature range and frequency separation and the corresponding relation of rotation speed of fan, determine described second rotating speed.
7. a kind of control device of fan of outdoor unit of air conditioner, the rotating speed of described blower fan is adjustable it is characterised in that described control device
Including：
First processing units, for after receiving open command, controlling described blower fan operating；
Data capture unit, for obtaining the system load of air-conditioning according to random time intervals or prefixed time interval；
Data processing unit, interval for relatively described system load and predetermined system load, obtain comparative result；
First control unit, for when described system load is more than described predetermined system load interval, judging that described blower fan is worked as
Whether front rotating speed is maximum (top) speed, if current rotating speed is maximum speed, controls described blower fan to maintain current rotating speed, if working as
Front rotating speed is not maximum speed, then control described blower fan to improve rotating speed；
Second control unit, for when described system load is located at described predetermined system load interval, controlling described blower fan dimension
Hold current rotating speed；
3rd control unit, for when described system load is less than described predetermined system load interval, judging that described blower fan is worked as
Whether front rotating speed is minimum speed, if current rotating speed is minimum speed, controls described blower fan to maintain current rotating speed, if working as
Front rotating speed is not minimum speed, then control described blower fan to reduce rotating speed.
8. the control device of fan of outdoor unit of air conditioner according to claim 7 is it is characterised in that described first control unit
Including the first control module,
Described first control module is used for, when determining that current rotating speed is not maximum (top) speed, judging whether described system load is big
In the first numerical value, if described system load is more than described first numerical value, described blower fan is controlled to operate with maximum speed, if described
System load is less than or equal to described first numerical value, then 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 it is characterised in that described data capture unit
Including：
First temperature acquisition module, for obtaining outdoor environment temperature and outdoor pipe temperature temperature, described outdoor pipe temperature temperature is even
Connect the temperature in the outer machine of air-conditioning and the transfer tube of interior machine；
First computing module, for calculating the difference between described outdoor environment temperature and outdoor pipe temperature temperature, determines described difference
The absolute value of value is the system load of air-conditioning.
10. the control device of fan of outdoor unit of air conditioner according to claim 8 is it is characterised in that described data acquisition list
Unit includes：
Second temperature acquisition module, for obtaining the design temperature of indoor temperature and air-conditioning；
Second computing module, for calculating the difference between described indoor temperature and the design temperature of air-conditioning, determines described difference
Absolute value be air-conditioning system load.
The control device of 11. fan of outdoor unit of air conditioner according to any one of claim 7 to 10 is it is characterised in that institute
State first processing units to include：
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 determining module, the running frequency for the outdoor environment temperature that obtained according to described data acquisition module and air-conditioning is true
Determine the second rotating speed of blower fan；
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 it is characterised in that described rotating speed determines mould
Block includes：
First comparison submodule, for contrasting described environment temperature and default temperature range set, determines described outdoor environment
Temperature range belonging to temperature；
Second comparison submodule, for comparing the running frequency of described air-conditioning and default frequency separation set, determines described sky
The frequency separation belonging to running frequency adjusted；
Second rotating speed determination sub-module, for the corresponding relation according to default temperature range and frequency separation and rotation speed of fan,
Determine described second rotating speed.
A kind of 13. air-conditionings, including indoor set and off-premises station it is characterised in that the blower fan of described off-premises station includes such as claim 7
Control device any one of to 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310157717.2A CN104121658B (en) | 2013-04-28 | 2013-04-28 | Control method and control device for fan of air conditioner outdoor unit and air conditioner |
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|---|---|---|---|
| CN201310157717.2A CN104121658B (en) | 2013-04-28 | 2013-04-28 | Control method and control device for fan of air conditioner outdoor unit and air conditioner |
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| CN104121658B true CN104121658B (en) | 2017-02-08 |
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| CN104596034A (en) * | 2015-01-05 | 2015-05-06 | 广东美的制冷设备有限公司 | Control method for air conditioner |
| CN104819541B (en) * | 2015-03-27 | 2017-11-14 | 广东美的制冷设备有限公司 | Energy-saving control method, device and air conditioner |
| CN104990228A (en) * | 2015-07-27 | 2015-10-21 | 广东美的暖通设备有限公司 | Air conditioner outdoor fan, control method and device thereof and air conditioner |
| CN105257577B (en) * | 2015-10-21 | 2018-10-23 | 珠海格力电器股份有限公司 | Fan rotating speed control method and control device |
| CN105222640B (en) * | 2015-10-30 | 2017-06-13 | 广东美的暖通设备有限公司 | Control method and control system that a kind of upper and lower blower fan of heat exchanger is automatically confirmed that |
| CN105864958A (en) * | 2016-03-31 | 2016-08-17 | 宁波奥克斯电气股份有限公司 | Start control method of multi-gear motor in indoor fan of air conditioner |
| CN105928153A (en) * | 2016-05-06 | 2016-09-07 | 合肥美的暖通设备有限公司 | Control method and device of DC fan, air conditioner and controller of air conditioner |
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| CN108662732A (en) * | 2018-05-04 | 2018-10-16 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN111059724B (en) * | 2018-10-17 | 2021-07-06 | Tcl空调器(中山)有限公司 | Air conditioner refrigerating and heating control method and air conditioner |
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