CN107726568A - The control method of air conditioner, the control system of air conditioner and air conditioner - Google Patents
The control method of air conditioner, the control system of air conditioner and air conditioner Download PDFInfo
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- CN107726568A CN107726568A CN201711050088.8A CN201711050088A CN107726568A CN 107726568 A CN107726568 A CN 107726568A CN 201711050088 A CN201711050088 A CN 201711050088A CN 107726568 A CN107726568 A CN 107726568A
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- blower fan
- wind shelves
- delivery temperature
- outer machine
- air conditioner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides a kind of control method of air conditioner, the control system of air conditioner and air conditioner, wherein, the control method of air conditioner includes：Detect the delivery temperature of all compressors；Calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；The wind shelves of each blower fan are adjusted according to the delivery temperature of each compressor and delivery temperature average value.The control method of air conditioner provided by the invention, the wind shelves of each blower fan are adjusted according to the delivery temperature of each compressor and delivery temperature average value, so so that each blower fan also can be with reference to other compressors when adjusting itself wind shelves delivery temperature and load, ensure that the load between each compressor is more balanced, the windscreen difference for solving each outer machine is big, cause the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lift the reliability of refrigeration system.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of control of the control method of air conditioner, air conditioner
System and air conditioner.
Background technology
When the outer machine parallel connection of more of multiple on-line system is a system, the blower fan of every outdoor unit is general all according to the pressure of itself
The state modulators such as power, when pressure oscillation, blower fan is and then adjusted, for example blower fan is just at regular intervals when pressure is higher than some value
Raise one grade of windscreen.But for parallel manipulator, during more outer machine parallel connections, pressure is higher than some value, and every outer machine pressure passes
The pressure value that sensor detects might have some deviations, if wherein one first detects that pressure reaches the pressure value of rise windscreen
Shi Shenggao windscreens, now pressure typically can and then reduce, so cause the outer machine of remaining parallel connection to be not reaching to the condition of liter windscreen, just
Windscreen will not be raised again, such situation also occurs when reduction in same windscreen, if deviation is sufficiently large or pressure detecting
Precision is insensitive, the windscreen of every outer machine will difference it is very big, cause that outer machine heat exchange degree is different, and refrigerant distribution is uneven, has
Outer eight or nine ten degree of machine delivery temperature, when four or five ten degree of outer machine delivery temperature having, especially cryogenic refrigeration Smaller load are run more
To be serious, the reliability of system is influenceed.
The content of the invention
At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the present invention proposes a kind of air conditioner
Control method.
A kind of the second aspect of the present invention embodiment, it is also proposed that control system of air conditioner.
A kind of the third aspect of the present invention embodiment, it is also proposed that air conditioner.
In view of this, embodiment according to the first aspect of the invention, the present invention propose a kind of controlling party of air conditioner
Method, air conditioner include multiple outer machines, and outer machine includes compressor, blower fan and heat exchanger, and blower fan is used for the radiating of heat exchanger, and blower fan is set
Multiple different wind shelves are equipped with, the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger, and the control method of air conditioner includes：Detection institute
There is the delivery temperature of compressor；Calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；According to
The delivery temperature and delivery temperature average value of each compressor adjust the wind shelves of each blower fan.
The control method of air conditioner provided by the invention, according to the delivery temperature of each compressor and delivery temperature average value
Adjust the wind shelves of each blower fan, so that each blower fan also can be with reference to the exhaust of other compressors when adjusting itself wind shelves
Temperature and load, ensure that the load between each compressor is more balanced, the windscreen difference of each outer machine of solution is big, causes outer machine to change
Hot device heat exchange is uneven and refrigerant distributes the problem of uneven, lifts the reliability of refrigeration system.Usually, the wind shelves of each blower fan
It can gradually adjust to the average value of all wind shelves, thereby guarantee that the difference between each wind shelves is smaller, and then ensure each
Load between outer machine is more balanced, avoids the problems such as outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven.
In addition, the control method of the air conditioner in above-described embodiment provided by the invention can also have following supplementary technology
Feature：
In the above-mentioned technical solutions, it is preferable that adjusted according to the delivery temperature of each compressor and delivery temperature average value
The step of wind shelves of each blower fan, specifically include：If the delivery temperature of the compressor of any outer machine is more than delivery temperature average value
With the first correction value and, then judge whether the current wind shelves of the blower fan of outer machine are more than the minimum in the currently blower fan of all outer machines
Wind shelves and the second correction value and；If the determination result is YES, then the blower fan of outer machine is controlled to keep current wind shelves to continue to run with；If sentence
Disconnected result is no, then improves the wind shelves of the blower fan of outer machine.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is repaiied more than delivery temperature average value with first
On the occasion of sum, can tentatively illustrate that the load of the compressor is larger, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards
Minimum wind shelves and the second correction value in the blower fan of current all outer machines and, if the determination result is YES, illustrate that now wind shelves are fitted
Conjunction can continue to remain on, if judged result is no, illustrating that now wind shelves are relatively low needs to improve wind shelves to improve heat exchanger
Heat transfer rate and the delivery temperature of compressor corresponding to reducing, the load of balanced each outer machine.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is higher and wind shelves are also very high, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is higher but wind shelves are relatively low, can now improve the wind shelves of the second outer machine, and such second outer machine can lift the load of itself,
The load of a first outer machine can also be shared simultaneously, and then plays a part of balancing the first outer machine and the second outer machine load, and
And make the delivery temperature of the compressor of the first outer machine and the compressor of the second outer machine more balanced.
In any of the above-described technical scheme, it is preferable that according to the delivery temperature of each compressor and delivery temperature average value
The step of adjusting the wind shelves of each blower fan, specifically includes：If the delivery temperature of the compressor of any outer machine is put down less than delivery temperature
The difference of average and the 3rd correction value, then judge whether the current wind shelves of the blower fan of outer machine are more than in the blower fan of current all outer machines
The most difference of strong wind shelves and the 4th correction value；If the determination result is YES, then the wind shelves of the blower fan of outer machine are reduced；If judged result is
It is no, then control the blower fan of outer machine to keep current wind shelves to continue to run with.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is repaiied less than delivery temperature average value with the 3rd
On the occasion of difference, can tentatively illustrate that the load of the compressor is smaller, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards
The difference of most strong wind shelves and the 4th correction value in the blower fan of current all outer machines, if the determination result is YES, illustrates the blower fan now
Wind shelves it is higher, it is necessary to reduce wind shelves to reduce the delivery temperature of compressor corresponding to the heat transfer rate of heat exchanger and raising,
Weigh the load of each outer machine, if judged result is no, illustrate that now wind shelves are adapted to continue to remain on.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is relatively low and wind shelves are also very low, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is relatively low but wind shelves are higher, can now reduce the wind shelves of the second outer machine, and such second outer machine can reduce changing for heat exchanger
Thermal velocity, improve corresponding to compressor delivery temperature and by the second outer machine itself a part load be transferred to the first outer machine
On, and then play a part of balancing the first outer machine and the second outer machine load, and make the compressor and the second outer machine of the first outer machine
Compressor delivery temperature it is more balanced.
In any of the above-described technical scheme, it is preferable that also include：If the delivery temperature of the compressor of any outer machine is more than pre-
If higher limit, then the wind shelves of blower fan of outer machine are reduced to minimum wind shelves.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is more than preset upper limit value, illustrate the compression
The default scope that the load of machine and outer machine alreadys exceed, now the wind shelves of the blower fan can be minimized wind shelves, so made
Other outer machines can be gradually transferred to by obtaining the load of the outer machine, avoid outer captain's time excess load, and blower fan still has one in addition
Fixed rotating speed, ensure the basic heat sinking function for related electric control part, prevent it from causing to damage or reduce because temperature is too high
Service life.
In any of the above-described technical scheme, it is preferable that also include：When the delivery temperature of the compressor of all outer machines is respectively less than
During preset lower limit value, the delivery temperature of all compressors is detected again and calculates delivery temperature average value；Wherein, preset lower limit value
Less than preset upper limit value.
In the technical scheme, when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, air-conditioning is thought highly of
Normal working condition is newly returned to, now re-starts the wind shelves that above-mentioned control mode adjusts each blower fan again.
In any of the above-described technical scheme, it is preferable that also include：The exhaust temperature of all compressors is detected every preset duration
Degree.
In the technical scheme, periodically detect the delivery temperature of all compressors, enabling it is as quick as possible and
When, effectively adjust the wind shelves of each blower fan, avoid the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lifting
The reliability of refrigeration system.Wherein preset duration is preferably 2 to 5 minutes, so detects and judges once every few minutes, prevents
Judgement is excessively frequent, and fluctuation frequently influences very much each part service life and reliability.
In any of the above-described technical scheme, it is preferable that after the wind shelves for adjusting each blower fan, the maximum of all blower fan apoplexy shelves
The difference of value and the minimum value of wind shelves is less than or equal to default wind shelves difference.
In the technical scheme, the difference between the maxima and minima of each blower fan apoplexy shelves is less than equal to default
Wind shelves difference, usually, it can be 2 or 3 to preset wind shelves difference, thereby guarantee that the wind shelves of each blower fan can relatively be kept away
Exempt from the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lift the reliability of refrigeration system.
The embodiment of second aspect of the present invention additionally provides a kind of control system of air conditioner, and air conditioner includes multiple outer
Machine, outer machine include compressor, blower fan and heat exchanger, and blower fan is used for the radiating of heat exchanger, and blower fan is provided with multiple different wind shelves,
The rotating speed of the more high then blower fan of the wind shelves of blower fan is bigger, and the control system of air conditioner includes：Detection unit, for detecting all compressions
The delivery temperature of machine；Computing unit, for the delivery temperature that calculates all compressors average value and be denoted as delivery temperature and be averaged
Value；Control unit, the wind shelves of each blower fan are adjusted for the delivery temperature according to each compressor and delivery temperature average value.
The control system of air conditioner provided by the invention, according to the delivery temperature of each compressor and delivery temperature average value
Adjust the wind shelves of each blower fan, so that each blower fan also can be with reference to the exhaust of other compressors when adjusting itself wind shelves
Temperature and load, ensure that the load between each compressor is more balanced, the windscreen difference of each outer machine of solution is big, causes outer machine to change
Hot device heat exchange is uneven and refrigerant distributes the problem of uneven, lifts the reliability of refrigeration system.Usually, the wind shelves of each blower fan
It can gradually adjust to the average value of all wind shelves, thereby guarantee that the difference between each wind shelves is smaller, and then ensure each
Load between outer machine is more balanced, avoids the problems such as outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven.
In addition, the control system of the air conditioner in above-described embodiment provided by the invention can also have following supplementary technology
Feature：
In the above-mentioned technical solutions, it is preferable that also include：First judging unit, if the compressor for any outer machine
Delivery temperature be more than delivery temperature average value and the first correction value and, then whether the current wind shelves of the blower fan of the outer machine of judgement are more than
Minimum wind shelves and the second correction value in the blower fan of current all outer machines and；If control unit is additionally operable to the first judging unit
Judged result is yes, then controls the blower fan of outer machine to keep current wind shelves to continue to run with；It is single that if control unit is additionally operable to the first judgement
The judged result of member is no, then improves the wind shelves of the blower fan of outer machine.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is repaiied more than delivery temperature average value with first
On the occasion of sum, can tentatively illustrate that the load of the compressor is larger, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards
Minimum wind shelves and the second correction value in the blower fan of current all outer machines and, if the determination result is YES, illustrate that now wind shelves are fitted
Conjunction can continue to remain on, if judged result is no, illustrating that now wind shelves are relatively low needs to improve wind shelves to improve heat exchanger
Heat transfer rate and the delivery temperature of compressor corresponding to reducing, the load of balanced each outer machine.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is higher and wind shelves are also very high, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is higher but wind shelves are relatively low, can now improve the wind shelves of the second outer machine, and such second outer machine can lift the load of itself,
The load of a first outer machine can also be shared simultaneously, and then plays a part of balancing the first outer machine and the second outer machine load, and
And make the delivery temperature of the compressor of the first outer machine and the compressor of the second outer machine more balanced.
In any of the above-described technical scheme, it is preferable that also include：Second judging unit, if the compression for any outer machine
The delivery temperature of machine is less than the difference of delivery temperature average value and the 3rd correction value, then whether the current wind shelves of the blower fan of the outer machine of judgement
More than the most strong wind shelves and the difference of the 4th correction value in the blower fan of current all outer machines；It is single that if control unit is additionally operable to the second judgement
The judged result of member is yes, then reduces the wind shelves of the blower fan of outer machine；If control unit is additionally operable to the judgement knot of the second judging unit
Fruit is no, then controls the blower fan of outer machine to keep current wind shelves to continue to run with.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is repaiied less than delivery temperature average value with the 3rd
On the occasion of difference, can tentatively illustrate that the load of the compressor is smaller, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards
The difference of most strong wind shelves and the 4th correction value in the blower fan of current all outer machines, if the determination result is YES, illustrates the blower fan now
Wind shelves it is higher, it is necessary to reduce wind shelves to reduce the delivery temperature of compressor corresponding to the heat transfer rate of heat exchanger and raising,
Weigh the load of each outer machine, if judged result is no, illustrate that now wind shelves are adapted to continue to remain on.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is relatively low and wind shelves are also very low, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is relatively low but wind shelves are higher, can now reduce the wind shelves of the second outer machine, and such second outer machine can reduce changing for heat exchanger
Thermal velocity, improve corresponding to compressor delivery temperature and by the second outer machine itself a part load be transferred to the first outer machine
On, and then play a part of balancing the first outer machine and the second outer machine load, and make the compressor and the second outer machine of the first outer machine
Compressor delivery temperature it is more balanced.
In any of the above-described technical scheme, it is preferable that if control unit is additionally operable to the exhaust temperature of the compressor of any outer machine
Degree is more than preset upper limit value, then the wind shelves of the blower fan of the outer machine of reduction to minimum wind shelves.
In the technical scheme, if the delivery temperature of the compressor of any outer machine is more than preset upper limit value, illustrate the compression
The default scope that the load of machine and outer machine alreadys exceed, now the wind shelves of the blower fan can be minimized wind shelves, so made
Other outer machines can be gradually transferred to by obtaining the load of the outer machine, avoid outer captain's time excess load, and blower fan still has one in addition
Fixed rotating speed, ensure the basic heat sinking function for related electric control part, prevent it from causing to damage or reduce because temperature is too high
Service life.
In any of the above-described technical scheme, it is preferable that detection unit is additionally operable to when the exhaust temperature of the compressor of all outer machines
When degree is respectively less than preset lower limit value, the delivery temperature of all compressors is detected again；Computing unit is additionally operable to when all outer machines
When the delivery temperature of compressor is respectively less than preset lower limit value, delivery temperature average value is calculated again；Wherein, preset lower limit value is less than
Preset upper limit value.
In the technical scheme, when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, air-conditioning is thought highly of
Normal working condition is newly returned to, now re-starts the wind shelves that above-mentioned control mode adjusts each blower fan again.
In any of the above-described technical scheme, it is preferable that detection unit is additionally operable to detect all compressors every preset duration
Delivery temperature.
In the technical scheme, periodically detect the delivery temperature of all compressors, enabling it is as quick as possible and
When, effectively adjust the wind shelves of each blower fan, avoid the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lifting
The reliability of refrigeration system.Wherein preset duration is preferably 2 to 5 minutes, so detects and judges once every few minutes, prevents
Judgement is excessively frequent, and fluctuation frequently influences very much each part service life and reliability.
In any of the above-described technical scheme, it is preferable that detection unit is additionally operable to after the wind shelves of each blower fan are adjusted, control
The difference of the maximum of all blower fan apoplexy shelves and the minimum value of wind shelves is less than or equal to default wind shelves difference.
In the technical scheme, the difference between the maxima and minima of each blower fan apoplexy shelves is less than equal to default
Wind shelves difference, usually, it can be 2 or 3 to preset wind shelves difference, thereby guarantee that the wind shelves of each blower fan can relatively be kept away
Exempt from the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lift the reliability of refrigeration system.
The embodiment of third aspect present invention additionally provides a kind of air conditioner, including：Multiple outer machines, outer machine include compression
Machine, blower fan and heat exchanger, blower fan are used for the radiating of heat exchanger, and blower fan is provided with multiple different wind shelves, and the wind shelves of blower fan are higher
Then the rotating speed of blower fan is bigger；And the control system of the air conditioner of second aspect of the present invention embodiment.
Air conditioner provided by the invention, by using the control system of the air conditioner of second aspect of the present invention embodiment, protect
The load demonstrate,proved between each compressor is more balanced, and the windscreen difference of each outer machine of solution is big, causes outer machine heat exchanger heat exchange uneven
And refrigerant distributes the problem of uneven, the reliability of refrigeration system is lifted.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention；
Fig. 2 is the schematic flow sheet of the control method of the air conditioner of an alternative embodiment of the invention；
Fig. 3 is the schematic flow sheet of the control method of the air conditioner of yet another embodiment of the present invention；
Fig. 4 is the schematic block diagram of the control system of the air conditioner of one embodiment of the present of invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The control method and air-conditioning of air conditioner described according to some embodiments of the invention are described referring to Fig. 1 to Fig. 4
The control system of device.
As shown in figure 1, the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes multiple outer machines, and outer machine includes compressor, blower fan and heat exchanger, and blower fan is used to exchange heat
The radiating of device, blower fan are provided with multiple different wind shelves, and the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger, the control of the air conditioner
Method processed comprises the following steps：
Step S102, detect the delivery temperature of all compressors；
Step S104, calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；
Step S106, the wind shelves of each blower fan are adjusted according to the delivery temperature of each compressor and delivery temperature average value.
In this embodiment, the wind of each blower fan is adjusted according to the delivery temperature of each compressor and delivery temperature average value
Shelves, so that the delivery temperature and load that each blower fan also can be with reference to other compressors when adjusting itself wind shelves, ensure
Load between each compressor is more balanced, and it is big to solve the windscreen difference of each outer machine, cause outer machine heat exchanger heat exchange uneven with
And refrigerant distributes the problem of uneven, the reliability of refrigeration system is lifted.Usually, the wind shelves of each blower fan can be adjusted gradually to institute
Near the average value for there are wind shelves, thereby guarantee that the difference between each wind shelves is smaller, and then ensure the load between each outer machine
It is more balanced, avoid the problems such as outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven.
As shown in Fig. 2 the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes multiple outer machines, and outer machine includes compressor, blower fan and heat exchanger, and blower fan is used to exchange heat
The radiating of device, blower fan are provided with multiple different wind shelves, and the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger, the control of the air conditioner
Method processed comprises the following steps：
Step S202, detect the delivery temperature of all compressors；
Step S204, calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；
Step S206, judges whether the delivery temperature of the compressor of any outer machine repaiies more than delivery temperature average value with first
On the occasion of sum, step S208 is entered if the result judged is is, otherwise then return to step S206；
Step S208, judges whether the current wind shelves of the blower fan of outer machine are more than the minimum wind in the blower fan of current all outer machines
Shelves with the second correction value and, step S210 is entered if the result judged is is, otherwise then enters step S212；
Step S210, the blower fan of outer machine is controlled to keep current wind shelves to continue to run with；
Step S212, improve the wind shelves of the blower fan of outer machine.
In this embodiment, if the delivery temperature of the compressor of any outer machine is more than delivery temperature average value and the first amendment
The sum of value, can tentatively illustrate that the load of the compressor is larger, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards and work as
Minimum wind shelves and the second correction value in the blower fan of preceding all outer machines and, if the determination result is YES, illustrate that now wind shelves are adapted to
It can continue to remain on, if judged result is no, illustrating that now wind shelves are relatively low needs to improve wind shelves to improve changing for heat exchanger
The delivery temperature of compressor corresponding to thermal velocity and reduction, the load of balanced each outer machine.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is higher and wind shelves are also very high, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is higher but wind shelves are relatively low, can now improve the wind shelves of the second outer machine, and such second outer machine can lift the load of itself,
The load of a first outer machine can also be shared simultaneously, and then plays a part of balancing the first outer machine and the second outer machine load, and
And make the delivery temperature of the compressor of the first outer machine and the compressor of the second outer machine more balanced.
As shown in figure 3, the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes multiple outer machines, and outer machine includes compressor, blower fan and heat exchanger, and blower fan is used to exchange heat
The radiating of device, blower fan are provided with multiple different wind shelves, and the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger, the control of the air conditioner
Method processed comprises the following steps：
Step S302, detect the delivery temperature of all compressors；
Step S304, calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；
Step S306, judges whether the delivery temperature of the compressor of any outer machine repaiies less than delivery temperature average value with the 3rd
On the occasion of difference, step S308 is entered if the result judged is is, otherwise then return to step S306；
Step S308, judges whether the current wind shelves of the blower fan of outer machine are more than the most strong wind in the blower fan of current all outer machines
Shelves and the difference of the 4th correction value, step S310 is entered if the result judged is is, otherwise then enters step S312；
Step S310, reduce the wind shelves of the blower fan of outer machine；
Step S312, the blower fan of outer machine is controlled to keep current wind shelves to continue to run with.
In this embodiment, if the delivery temperature of the compressor of any outer machine is less than delivery temperature average value and the 3rd amendment
It the difference of value, can tentatively illustrate that the load of the compressor is smaller, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards and work as
The differences of most strong wind shelves and the 4th correction value in the blower fan of preceding all outer machines, if the determination result is YES, illustrate the blower fan now
Wind shelves are higher, it is necessary to reduce wind shelves to reduce the delivery temperature of compressor corresponding to the heat transfer rate of heat exchanger and raising, balanced
The load of each outer machine, if judged result is no, illustrate that now wind shelves are adapted to continue to remain on.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is relatively low and wind shelves are also very low, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is relatively low but wind shelves are higher, can now reduce the wind shelves of the second outer machine, and such second outer machine can reduce changing for heat exchanger
Thermal velocity, improve corresponding to compressor delivery temperature and by the second outer machine itself a part load be transferred to the first outer machine
On, and then play a part of balancing the first outer machine and the second outer machine load, and make the compressor and the second outer machine of the first outer machine
Compressor delivery temperature it is more balanced.
In one embodiment of the invention, it is preferable that also include：If the delivery temperature of the compressor of any outer machine is more than
Preset upper limit value, then the wind shelves of blower fan of outer machine are reduced to minimum wind shelves.
In this embodiment, if the delivery temperature of the compressor of any outer machine is more than preset upper limit value, the compressor is illustrated
And the default scope that the load of outer machine alreadys exceed, now the wind shelves of the blower fan can be minimized wind shelves, so that
The load of the outer machine can gradually be transferred to other outer machines, avoid outer captain's time excess load, and blower fan still has certain in addition
Rotating speed, ensure the basic heat sinking function for related electric control part, prevent it from causing to damage or reducing and make because temperature is too high
Use the life-span.
In one embodiment of the invention, it is preferable that also include：When the delivery temperature of the compressor of all outer machines is small
When preset lower limit value, the delivery temperature of all compressors is detected again and calculates delivery temperature average value；Wherein, pre-determined lower limit
Value is less than preset upper limit value.
In this embodiment, when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, air-conditioning is thought highly of newly
Normal working condition is returned to, now re-starts the wind shelves that above-mentioned control mode adjusts each blower fan again.
In one embodiment of the invention, it is preferable that also include：The exhaust of all compressors is detected every preset duration
Temperature.
In this embodiment, periodically detect the delivery temperature of all compressors, enabling it is as quick as possible and
When, effectively adjust the wind shelves of each blower fan, avoid the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lifting
The reliability of refrigeration system.Wherein preset duration is preferably 2 to 5 minutes, so detects and judges once every few minutes, prevents
Judgement is excessively frequent, and fluctuation frequently influences very much each part service life and reliability.
In one embodiment of the invention, it is preferable that after the wind shelves for adjusting each blower fan, all blower fan apoplexy shelves are most
The difference of big value and the minimum value of wind shelves is less than or equal to default wind shelves difference.
In this embodiment, the difference between the maxima and minima of each blower fan apoplexy shelves is less than equal to default wind
Shelves difference, usually, it can be 2 or 3 to preset wind shelves difference, thereby guarantee that the wind shelves of each blower fan can be avoided relatively
Outer machine heat exchanger heat exchange is uneven and refrigerant distributes the problem of uneven, lifts the reliability of refrigeration system.
Present invention also offers a kind of control system 4 of air conditioner, as shown in figure 4, can be used for controlling air conditioner, air conditioner
Including multiple outer machines, outer machine includes compressor, blower fan and heat exchanger, and blower fan is used for the radiating of heat exchanger, and blower fan is provided with multiple
Different wind shelves, the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger, and the control system 4 of air conditioner includes：Detection unit 402,
For detecting the delivery temperature of all compressors；Computing unit 404, the average value of the delivery temperature for calculating all compressors
And it is denoted as delivery temperature average value；Control unit 406, for the delivery temperature according to each compressor and delivery temperature average value
Adjust the wind shelves of each blower fan.
The control system 4 of air conditioner provided by the invention, is averaged according to the delivery temperature of each compressor and delivery temperature
Value adjusts the wind shelves of each blower fan, so that each blower fan also can be with reference to the row of other compressors when adjusting itself wind shelves
Temperature degree and load, ensure that the load between each compressor is more balanced, the windscreen difference of each outer machine of solution is big, causes outer machine
Heat exchanger heat exchange is uneven and refrigerant distributes the problem of uneven, lifts the reliability of refrigeration system.Usually, the wind of each blower fan
Shelves can be adjusted gradually to the average value of all wind shelves, thereby guarantee that the difference between each wind shelves is smaller, and then are ensured each
Load between individual outer machine is more balanced, avoids the problems such as outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven.
In one embodiment of the invention, it is preferable that as shown in figure 4, also including：First judging unit 408, if for
The delivery temperature of the compressor of any outer machine be more than delivery temperature average value and the first correction value and, then the blower fan of the outer machine of judgement
Current wind shelves whether be more than minimum wind shelves in the blower fan of current all outer machines and the second correction value and；Control unit 406
If the judged result for being additionally operable to the first judging unit 408 is yes, the blower fan of outer machine is controlled to keep current wind shelves to continue to run with；Control
If the judged result that unit 406 processed is additionally operable to the first judging unit 408 is no, the wind shelves of the blower fan of outer machine are improved.
In this embodiment, if the delivery temperature of the compressor of any outer machine is more than delivery temperature average value and the first amendment
The sum of value, can tentatively illustrate that the load of the compressor is larger, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards and work as
Minimum wind shelves and the second correction value in the blower fan of preceding all outer machines and, if the determination result is YES, illustrate that now wind shelves are adapted to
It can continue to remain on, if judged result is no, illustrating that now wind shelves are relatively low needs to improve wind shelves to improve changing for heat exchanger
The delivery temperature of compressor corresponding to thermal velocity and reduction, the load of balanced each outer machine.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is higher and wind shelves are also very high, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is higher but wind shelves are relatively low, can now improve the wind shelves of the second outer machine, and such second outer machine can lift the load of itself,
The load of a first outer machine can also be shared simultaneously, and then plays a part of balancing the first outer machine and the second outer machine load, and
And make the delivery temperature of the compressor of the first outer machine and the compressor of the second outer machine more balanced.
In one embodiment of the invention, it is preferable that as shown in figure 4, also including：Second judging unit 410, if for
The delivery temperature of the compressor of any outer machine is less than the difference of delivery temperature average value and the 3rd correction value, then judges the blower fan of outer machine
Current wind shelves whether be more than the differences of most strong wind shelves and the 4th correction value in the blower fan of current all outer machines；Control unit 406
If the judged result for being additionally operable to the second judging unit 410 is yes, the wind shelves of the blower fan of outer machine are reduced；Control unit 406 is also used
If being no in the judged result of the second judging unit 410, the blower fan of outer machine is controlled to keep current wind shelves to continue to run with.
In this embodiment, if the delivery temperature of the compressor of any outer machine is less than delivery temperature average value and the 3rd amendment
It the difference of value, can tentatively illustrate that the load of the compressor is smaller, judge whether the current wind shelves of the blower fan of outer machine are more than afterwards and work as
The differences of most strong wind shelves and the 4th correction value in the blower fan of preceding all outer machines, if the determination result is YES, illustrate the blower fan now
Wind shelves are higher, it is necessary to reduce wind shelves to reduce the delivery temperature of compressor corresponding to the heat transfer rate of heat exchanger and raising, balanced
The load of each outer machine, if judged result is no, illustrate that now wind shelves are adapted to continue to remain on.
For example, if air conditioner includes the first outer machine and the second outer machine, the compressor row in a certain the first outer machine of moment
Temperature degree is relatively low and wind shelves are also very low, and now the first outer machine can keep the state to continue to run with, and the compressor of the second outer machine is arranged
Temperature degree is relatively low but wind shelves are higher, can now reduce the wind shelves of the second outer machine, and such second outer machine can reduce changing for heat exchanger
Thermal velocity, improve corresponding to compressor delivery temperature and by the second outer machine itself a part load be transferred to the first outer machine
On, and then play a part of balancing the first outer machine and the second outer machine load, and make the compressor and the second outer machine of the first outer machine
Compressor delivery temperature it is more balanced.
In one embodiment of the invention, it is preferable that if control unit 406 is additionally operable to the row of the compressor of any outer machine
Temperature degree is more than preset upper limit value, then the wind shelves of the blower fan of the outer machine of reduction to minimum wind shelves.
In this embodiment, if the delivery temperature of the compressor of any outer machine is more than preset upper limit value, the compressor is illustrated
And the default scope that the load of outer machine alreadys exceed, now the wind shelves of the blower fan can be minimized wind shelves, so that
The load of the outer machine can gradually be transferred to other outer machines, avoid outer captain's time excess load, and blower fan still has certain in addition
Rotating speed, ensure the basic heat sinking function for related electric control part, prevent it from causing to damage or reducing and make because temperature is too high
Use the life-span.
In one embodiment of the invention, it is preferable that detection unit 402 is additionally operable to as the row of the compressor of all outer machines
When temperature degree is respectively less than preset lower limit value, the delivery temperature of all compressors is detected again；Computing unit 404 is additionally operable to when all
When the delivery temperature of the compressor of outer machine is respectively less than preset lower limit value, delivery temperature average value is calculated again；Wherein, pre-determined lower limit
Value is less than preset upper limit value.
In this embodiment, when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, air-conditioning is thought highly of newly
Normal working condition is returned to, now re-starts the wind shelves that above-mentioned control mode adjusts each blower fan again.
In one embodiment of the invention, it is preferable that detection unit 402 is additionally operable to detect all pressures every preset duration
The delivery temperature of contracting machine.
In this embodiment, periodically detect the delivery temperature of all compressors, enabling it is as quick as possible and
When, effectively adjust the wind shelves of each blower fan, avoid the problem of outer machine heat exchanger heat exchange is uneven and refrigerant distribution is uneven, lifting
The reliability of refrigeration system.Wherein preset duration is preferably 2 to 5 minutes, so detects and judges once every few minutes, prevents
Judgement is excessively frequent, and fluctuation frequently influences very much each part service life and reliability.
In one embodiment of the invention, it is preferable that detection unit 402 is additionally operable to adjusting the wind shelves of each blower fan
Afterwards, the difference of the maximum of all blower fan apoplexy shelves and the minimum value of wind shelves is controlled to be less than or equal to default wind shelves difference.
In this embodiment, the difference between the maxima and minima of each blower fan apoplexy shelves is less than equal to default wind
Shelves difference, usually, it can be 2 or 3 to preset wind shelves difference, thereby guarantee that the wind shelves of each blower fan can be avoided relatively
Outer machine heat exchanger heat exchange is uneven and refrigerant distributes the problem of uneven, lifts the reliability of refrigeration system.
Present invention also offers a kind of air conditioner, including：Multiple outer machines, outer machine include compressor, blower fan and heat exchanger, wind
Machine is used for the radiating of heat exchanger, and blower fan is provided with multiple different wind shelves, and the rotating speed of the more high then blower fan of wind shelves of blower fan is bigger；And
The control system 4 of the air conditioner of second aspect of the present invention embodiment.
Air conditioner provided by the invention, by using the control system 4 of the air conditioner of second aspect of the present invention embodiment, protect
The load demonstrate,proved between each compressor is more balanced, and the windscreen difference of each outer machine of solution is big, causes outer machine heat exchanger heat exchange uneven
And refrigerant distributes the problem of uneven, the reliability of refrigeration system is lifted.
In the present invention, term " multiple " then refers to two or more, is limited unless otherwise clear and definite.Term " peace
The term such as dress ", " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected, can also
It is to be detachably connected, or is integrally connected；" connected " can be joined directly together, and can also be indirectly connected by intermediary.It is right
For one of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. means to combine
The embodiment or specific features, structure, material or the feature of example description are contained at least one embodiment of the present invention or shown
In example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.Moreover,
Specific features, structure, material or the feature of description can be in any one or more embodiments or example with suitable side
Formula combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
1. a kind of control method of air conditioner, the air conditioner includes multiple outer machines, and the outer machine includes compressor, blower fan and changed
Hot device, the blower fan are used for the radiating of the heat exchanger, and the blower fan is provided with multiple different wind shelves, the wind shelves of the blower fan
The rotating speed of more high then described blower fan is bigger, it is characterised in that the control method of the air conditioner includes：
Detect the delivery temperature of all compressors；
Calculate the average value of the delivery temperature of all compressors and be denoted as delivery temperature average value；
The wind shelves of each blower fan are adjusted according to the delivery temperature of each compressor and the delivery temperature average value.
2. the control method of air conditioner according to claim 1, it is characterised in that according to the exhaust of each compressor
The step of temperature and the delivery temperature average value adjust the wind shelves of each blower fan, specifically includes：
If the delivery temperature of the compressor of any outer machine be more than the delivery temperature average value and the first correction value and,
Judge whether the current wind shelves of the blower fan of the outer machine are more than the minimum wind shelves and second in the blower fan of current all outer machines
The sum of correction value；
If the determination result is YES, then the blower fan of the outer machine is controlled to keep current wind shelves to continue to run with；
If judged result is no, the wind shelves of the blower fan of the outer machine are improved.
3. the control method of air conditioner according to claim 1, it is characterised in that according to the exhaust of each compressor
The step of temperature and the delivery temperature average value adjust the wind shelves of each blower fan, specifically includes：
If the delivery temperature of the compressor of any outer machine is less than the difference of the delivery temperature average value and the 3rd correction value,
Judge whether the current wind shelves of the blower fan of the outer machine are more than the most strong wind shelves and the 4th in the blower fan of current all outer machines
The difference of correction value；
If the determination result is YES, then the wind shelves of the blower fan of the outer machine are reduced；
If judged result is no, the blower fan of the outer machine is controlled to keep current wind shelves to continue to run with.
4. the control method of air conditioner according to any one of claim 1 to 3, it is characterised in that also include：
If the delivery temperature of the compressor of any outer machine is more than preset upper limit value, the wind shelves of the blower fan of the outer machine are reduced
To minimum wind shelves.
5. the control method of air conditioner according to claim 4, it is characterised in that also include：
When the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, all compressors are detected again
Delivery temperature and calculate the delivery temperature average value；
Wherein, the preset lower limit value is less than the preset upper limit value.
6. the control method of air conditioner according to any one of claim 1 to 3, it is characterised in that also include：
The delivery temperature of all compressors is detected every preset duration.
7. the control method of air conditioner according to any one of claim 1 to 3, it is characterised in that
After the wind shelves for adjusting each blower fan, the difference of the maximum and the minimum value of wind shelves of all blower fan apoplexy shelves is small
In equal to default wind shelves difference.
8. a kind of control system of air conditioner, the air conditioner includes multiple outer machines, and the outer machine includes compressor, blower fan and changed
Hot device, the blower fan are used for the radiating of the heat exchanger, and the blower fan is provided with multiple different wind shelves, the wind shelves of the blower fan
The rotating speed of more high then described blower fan is bigger, it is characterised in that the control system of the air conditioner includes：
Detection unit, for detecting the delivery temperature of all compressors；
Computing unit, for the delivery temperature that calculates all compressors average value and be denoted as delivery temperature average value；
Control unit, for the delivery temperature according to each compressor and the delivery temperature average value regulation it is each described in
The wind shelves of blower fan.
9. the control system of air conditioner according to claim 8, it is characterised in that also include：
First judging unit, if for any outer machine compressor delivery temperature be more than the delivery temperature average value with
The sum of first correction value, then judge whether the current wind shelves of the blower fan of the outer machine are more than in the blower fan of current all outer machines
Minimum wind shelves and the second correction value and；
If the judged result that described control unit is additionally operable to first judging unit is yes, the blower fan of the outer machine is controlled to protect
Current wind shelves are held to continue to run with；
If the judged result that described control unit is additionally operable to first judging unit is no, the blower fan of the outer machine is improved
Wind shelves.
10. the control system of air conditioner according to claim 8, it is characterised in that also include：
Second judging unit, if for any outer machine compressor delivery temperature be less than the delivery temperature average value with
The difference of 3rd correction value, then judge whether the current wind shelves of the blower fan of the outer machine are more than in the blower fan of current all outer machines
Most strong wind shelves and the 4th correction value difference；
If the judged result that described control unit is additionally operable to second judging unit is yes, the blower fan of the outer machine is reduced
Wind shelves；
If the judged result that described control unit is additionally operable to second judging unit is no, the blower fan of the outer machine is controlled to protect
Current wind shelves are held to continue to run with.
11. the control system of the air conditioner according to any one of claim 8 to 10, it is characterised in that
If the delivery temperature that described control unit is additionally operable to the compressor of any outer machine is more than preset upper limit value, institute is reduced
The wind shelves of the blower fan of outer machine are stated to minimum wind shelves.
12. the control system of air conditioner according to claim 11, it is characterised in that
The detection unit is additionally operable to when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, again
Detect the delivery temperature of all compressors；
The computing unit is additionally operable to when the delivery temperature of the compressor of all outer machines is respectively less than preset lower limit value, again
Calculate the delivery temperature average value；
Wherein, the preset lower limit value is less than the preset upper limit value.
13. the control system of the air conditioner according to any one of claim 8 to 10, it is characterised in that
The detection unit is additionally operable to detect the delivery temperature of all compressors every preset duration.
14. the control system of the air conditioner according to any one of claim 8 to 10, it is characterised in that
The detection unit is additionally operable to after the wind shelves of each blower fan are adjusted, and controls the maximum of all blower fan apoplexy shelves
The difference of value and the minimum value of wind shelves is less than or equal to default wind shelves difference.
A kind of 15. air conditioner, it is characterised in that including：
Multiple outer machines, the outer machine include compressor, blower fan and heat exchanger, and the blower fan is used for the radiating of the heat exchanger, institute
State blower fan and be provided with multiple different wind shelves, the rotating speed of the more high then described blower fan of wind shelves of the blower fan is bigger；And
The control system of air conditioner as any one of claim 8 to 14.
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