CN104279709B - Control method, device and the air conditioner of air conditioner - Google Patents
Control method, device and the air conditioner of air conditioner Download PDFInfo
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- CN104279709B CN104279709B CN201410525179.2A CN201410525179A CN104279709B CN 104279709 B CN104279709 B CN 104279709B CN 201410525179 A CN201410525179 A CN 201410525179A CN 104279709 B CN104279709 B CN 104279709B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of control method of air conditioner, air conditioner, coolant system including heat exchanger, the connection heat exchanger, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor fan and the frequency-changeable compressor of driving refrigerant operating, wherein, there is the structure that large space is poured in refrigerant flowing from small space in described coolant system, the described method comprises the following steps：When the air conditioner is in stillness mode, flowing velocity of the control liquid refrigerants in coolant system.The control method of the air conditioner of the embodiment of the present invention, the amount of flow and impulsive force of refrigerant can be effectively reduced, so as to reduce refrigerant sound and mechanicalness noise, avoid and user is caused to bother, improve the experience of user.
Description
Technical field
The present invention relates to technical field of electric appliances, more particularly to the device and sky of a kind of control method of air conditioner, air conditioner
Adjust device.
Background technology
In order to accelerate the refrigeration of air-conditioning and heating speed, at present, most of air-conditioning producers can be by controlling frequency-changeable compressor
The fast lifting of frequency realize fast-refrigerating or heating.But the fast lifting of compressor frequency will necessarily increase compression
The noise of machine, and the quick change of refrigeration system pressure is also resulted in, so as to increase the cold-producing medium stream in indoor machine evaporation
Noise caused by dynamic, so, such as old man, child, can cause discomfort, especially in evening for some to the more sensitive crowd of noise ratio
Between it is quiet when, people are in the rest period, and excessive noise can seriously bother user's rest, or even can bother other users rest
And other users are caused to be complained.Particularly if compressor frequency raising speed can cause very much the refrigerant flow rate in heat exchanger too fast soon,
When refrigerant is converted to gaseous coolant in heat exchanger from liquid refrigerants, header of drop meeting heat exchanging device of liquid refrigerants etc. is made
Into impact, so as to which larger noise can be produced, the sleep of user is influenceed.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, the purpose of first aspect present invention is to propose a kind of control method of air conditioner, refrigerant impact can be reduced
Noise caused by heat exchanger, avoid and user is caused to bother, improve the experience of user.
The purpose of the second aspect of the present invention is to propose a kind of control device of air conditioner.
The purpose of the third aspect of the present invention is to propose a kind of air conditioner.
For the above-mentioned purpose, embodiment proposes a kind of control method of air conditioner according to a first aspect of the present invention, described
Air conditioner, including heat exchanger, the coolant system of the connection heat exchanger, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor wind
Machine and the frequency-changeable compressor of driving refrigerant operating, wherein, refrigerant flowing be present and pour big sky from small space in described coolant system
Between structure, the described method comprises the following steps：When the air conditioner is in stillness mode, control liquid refrigerants is in refrigerant system
Flowing velocity in system.
The control method of the air conditioner of the embodiment of the present invention, when air conditioner is in stillness mode, refrigerant stream can be avoided
Speed increase is too fast, and reducing the caused noise of refrigerant heat exchanging device impact (such as can be with by the control to compressor frequency
Refrigerant flow rate is controlled).Avoid and user is caused to bother, improve the experience of user.
In one embodiment of the invention, the structure that the refrigerant flowing pours large space from small space is refrigerant connection
Pipe is connected to the structure of header.
In one embodiment of the invention, the structure that the refrigerant flowing pours large space from small space is that concurrent flow changes
The structure of the flat tube refrigerant passage connection header of hot device.
In one embodiment of the invention, it is described to control flowing velocity of the liquid refrigerants in coolant system to be pressed for regulation
The aperture of contracting unit frequency and/or expansion valve, is specifically included：The frequency-changeable compressor for controlling the air conditioner with first frequency starts；
After by the first preset time, the frequency-changeable compressor is controlled to carry out raising frequency with the first scheduled rate；Judge the heat exchange
Whether the flow velocity of the refrigerant in device reaches the first preset flow rate；And if the refrigerant flow rate reaches the described first default stream
Speed, then the frequency-changeable compressor is controlled to stop raising frequency so that the flow velocity of the refrigerant is less than predetermined threshold value.
Thus, started with relatively low first frequency control frequency-changeable compressor, and after the first preset time, with relatively low
The first scheduled rate control frequency-changeable compressor carry out raising frequency, the refrigerant stream very little required for low-frequency start is cold so as to reduce
Matchmaker's flow velocity noise caused greatly, and the slow raising frequency of frequency-changeable compressor can slow down the velocity variations of refrigerant stream, it is cold so as to avoid
The noise that matchmaker's flow acute variation is brought.Refrigerant sound and mechanicalness noise are reduced, avoids and user is caused to bother, improve user
Experience.
In one embodiment of the invention, the indoor heat exchanger of the air conditioner is provided with pressure sensing cell and is used to read
Take the pressure of relevant position；According to the size of pressure value and the state currently run, by control compressor frequency raising frequency and
Frequency reducing.
In one embodiment of the invention, described raising frequency is carried out respectively according to raising frequency situation to goal pressure difference to obtain
To multiple raising frequency pressure values, after each raising frequency, if detecting that the high-pressure side and the pressure differential of the low-pressure side reach liter
Frequency is worth, then continues raising frequency.
In one embodiment of the invention, the parallel-flow heat exchanger includes refrigerant pipe and is connected with the refrigerant pipe
Header, or, the parallel-flow heat exchanger includes micro-channel flat and the header being connected with the refrigerant pipe.
The embodiment of the second aspect of the present invention provides a kind of control device of air conditioner, the air conditioner, including changes
The coolant system of hot device, the connection heat exchanger, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor fan and driving refrigerant fortune
The frequency-changeable compressor turned, wherein, the structure that large space is poured in refrigerant flowing from small space, the dress be present in described coolant system
Put for when the air conditioner is in stillness mode, controlling flowing velocity of the liquid refrigerants in coolant system.
The control device of the air conditioner of the embodiment of the present invention, when air conditioner is in stillness mode, refrigerant stream can be avoided
Speed increase is too fast, and reducing the caused noise of refrigerant heat exchanging device impact (such as can be with by the control to compressor frequency
Refrigerant flow rate is controlled).Avoid and user is caused to bother, improve the experience of user.
In one embodiment of the invention, it is characterised in that the knot of large space is poured in the refrigerant flowing from small space
Structure is the structure that coolant connecting tube is connected to header.
In one embodiment of the invention, the structure that the refrigerant flowing pours large space from small space is that concurrent flow changes
The structure of the flat tube refrigerant passage connection header of hot device
In one embodiment of the invention, the control device is used to control flowing of the liquid refrigerants in coolant system
To adjust the aperture of compressor frequency and/or expansion valve, the control device includes speed：Start submodule, for when described
When air conditioner is in stillness mode, the frequency-changeable compressor for controlling the air conditioner with first frequency starts；First control submodule,
For after by the first preset time, controlling the frequency-changeable compressor to carry out raising frequency with the first scheduled rate；Judge submodule
Whether block, the refrigerant flow rate for judging in the heat exchanger reach the first preset flow rate；Second control submodule, in institute
When stating judging submodule and judging that the refrigerant flow rate reaches first preset flow rate, the frequency-changeable compressor is controlled to stop rising
Frequently.
Thus, started with relatively low first frequency control frequency-changeable compressor, and after the first preset time, with relatively low
The first scheduled rate control frequency-changeable compressor carry out raising frequency, the refrigerant stream very little required for low-frequency start is cold so as to reduce
Matchmaker's flow velocity noise caused greatly, and the slow raising frequency of frequency-changeable compressor can slow down the velocity variations of refrigerant stream, it is cold so as to avoid
The noise that matchmaker's flow acute variation is brought.Refrigerant sound and mechanicalness noise are reduced, avoids and user is caused to bother, improve user
Experience.
In one embodiment of the invention, the indoor heat exchanger of the air conditioner is provided with pressure sensing cell and is used to read
Take the pressure of relevant position；The control device passes through to control and pressed for the size according to pressure value and the state currently run
The raising frequency of contracting unit frequency and frequency reducing.
In one embodiment of the invention, described raising frequency is carried out respectively according to raising frequency situation to goal pressure difference to obtain
To multiple raising frequency pressure values, after each raising frequency, if detecting that the high-pressure side and the pressure differential of the low-pressure side reach liter
Frequency is worth, then continues raising frequency.
In one embodiment of the invention, the parallel-flow heat exchanger includes refrigerant pipe and is connected with the refrigerant pipe
Header, or, the parallel-flow heat exchanger includes micro-channel flat and the header being connected with the refrigerant pipe.
The embodiment of the third aspect of the present invention provides a kind of air conditioner, includes the sky of second aspect of the present invention embodiment
Adjust the control device of device.The air conditioner can effectively reduce the amount of flow and impulsive force of refrigerant, so as to reduce refrigerant sound and machine
Tool noise, avoid and user is caused to bother, improve the body of user.
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 flow chart according to the control method of the air conditioner of one embodiment of the invention；And
Fig. 2 is the structural representation according to the control module of the control device of the air conditioner of one embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Typically, do not have that flow is bigger due to cold, refrigerating/heating efficiency is relatively higher, therefore, is being run in coolant system
When, in order to meet refrigerating/heating demand, conventional refrigeration system pursues quick refrigerating/heating and often makes every effort to quickly make refrigerant
Flow reaches saturation, so compressor operation can be driven with very high speed, so as to bring caused by higher refrigerant flowing
Noise, cold medium flux is bigger, and refrigerant flow rate is higher, and relatively caused flow noise is higher.And in some special occasions, for example sleep
Sleep mode, influence of the noise for user will be far longer than the influence of temperature.So make every effort to reduce refrigerant in sleep pattern
The operation noise of system.Therefore, embodiments of the invention propose a kind of control method of air conditioner, air conditioner control device and
Air conditioner, by the control to compressor frequency, so as to avoid refrigerant flow rate too fast, reduce the impact of refrigerant heat exchanging device and drawn
The noise risen, avoids and user is caused to bother, improve the experience of user.
Below with reference to the accompanying drawings describe the control method of air conditioner according to embodiments of the present invention, the control device of air conditioner and
Air conditioner.
Fig. 1 is the flow chart according to the control method of the air conditioner of one embodiment of the invention.
Wherein, the air conditioner air conditioner, including heat exchanger, the coolant system of the connection heat exchanger, change inside and outside junction chamber
The frequency-changeable compressor of the throttling arrangement of hot device, outdoor fan and driving refrigerant operating, wherein, refrigerant be present in described coolant system
The structure of large space is poured in flowing from small space.Specifically, the control method of the air conditioner, comprises the following steps：Work as air conditioner
During in stillness mode, flowing velocity of the control liquid refrigerants in coolant system.
Specifically, in one embodiment of the invention, the structure that refrigerant flowing pours large space from small space is cold
Matchmaker's connecting tube is connected to the structure of header.In another embodiment of the present invention, refrigerant flowing pours big sky from small space
Between structure be parallel-flow heat exchanger flat tube refrigerant passage connection header structure.
In an embodiment of the present invention, stillness mode is the operational mode for the purpose of reducing air conditioner operation noise, can
Apply in some special occasions, for example, the explain and publicise situation or other of sleep quality, meeting room need to reduce noise to user
Situation about bothering.
Specifically, the remote control of the human-computer interaction interface, air conditioner that can be provided in above-mentioned special occasions, user by air conditioner
The operational mode of air conditioner is arranged to stillness mode by device or the mobile terminal to be communicated with air conditioner.
Aperture of flowing velocity of the liquid refrigerants in coolant system for regulation compressor frequency and/or expansion valve is controlled,
As shown in figure 1, specifically include：
S101, the frequency-changeable compressor for controlling air conditioner with first frequency start.
In an embodiment of the present invention, first frequency can be that the low-limit frequency that can run of frequency-changeable compressor of air conditioner is attached
Near frequency values.First frequency is set in advance according to the frequency of the sustainable low-frequency operation of the frequency-changeable compressor used in air conditioner
It is fixed.For example, can be 4-10 hertz, the frequency range be the frequency for the sustainable low-frequency operation of frequency-changeable compressor for being currently able to realization
Rate.It should be appreciated that with the continuous improvement of technology, the frequency of the sustainable low-frequency operation of frequency-changeable compressor can become lower, first
Frequency can be adjusted accordingly based upon the frequency of the sustainable low-frequency operation of frequency-changeable compressor.
S102, after by the first preset time, raising frequency is carried out with the first scheduled rate control frequency-changeable compressor.
Specifically, in an embodiment of the present invention, when frequency-changeable compressor low frequency (first frequency) is run, compressor it is defeated
Tolerance can be fewer, and so after a period of time is run, the pressure of high-pressure side and low-pressure side can progressively tend to balance, i.e. high-pressure side
Reach that preset pressure is poor, and refrigerant flow rate tends towards stability with the pressure differential of low-pressure side, now can control frequency-changeable compressor to carry out raising frequency.
Wherein, when preset pressure difference is run for compressor with first frequency, when the pressure of high-pressure side and low-pressure side tends to balance, high-pressure side
With the pressure differential of low-pressure side.
Therefore, in one embodiment of the invention, the first preset time is that the frequency conversion of air conditioner is controlled with first frequency
After compressor start, the high-pressure side of frequency-changeable compressor and the pressure differential of low-pressure side reach the preset pressure difference required time.
Wherein, the first scheduled rate is the speed less than scheduled rate threshold value.In a preferred embodiment of the invention,
Scheduled rate threshold value can be 0.3 hertz/sec, and certainly, scheduled rate threshold value can also be 0.8 hertz/sec, 0.1 hertz/sec etc..
In an embodiment of the present invention, frequency-changeable compressor is become with a relatively low speed raising frequency so as to the speed of compressor
Change is slower, so for the heat exchange state of evaporator and condenser with regard to low uncertainty.By taking condenser as an example, when the cold media gas of entrance
During amount increase, the flow velocity of refrigerant can be improved, while the gas-liquid skewness in condenser can be caused, and when gas transmission velocity variations compared with
When slow, the flow velocity of refrigerant can be reduced, so as to which the change of this gas-liquid distribution also slows down, so as to be not likely to produce the refrigerant in heat exchanger
Flow noise, mechanicalness noise can also reduce.
S103, judges whether refrigerant flow rate reaches the first preset flow rate.Wherein, refrigerant flow rate can pass through flow sensor
Obtain, or, it is also possible to obtain the corresponding relation between refrigerant flow rate and compressor frequency, judged whether by compressor frequency
Reach first preset flow rate.
With the raising of compressor operating frequency, refrigerant flow rate improves in heat exchanger, and correspondingly, refrigerant flow rate increases, cold
Noise caused by the impact of matchmaker's drop heat exchanging device is bigger.When refrigerant flow rate is lifted rapidly, noise will be very big.Therefore, lead to
The running frequency of gradually increase compressor is crossed, refrigerant flow rate is slowly reached the first preset flow rate, is expired while reducing noise
The refrigerating/heating efficiency of sufficient user.
S104, if refrigerant flow rate reaches the first preset flow rate, the frequency-changeable compressor is controlled to stop raising frequency.Pass through
The gradually running frequency of increase compressor, make untill refrigerant flow rate slowly reaches the first preset flow rate.Avoid refrigerant flow rate fast
Big noise caused by speed lifting, avoid influenceing user.
The present invention another example in, air conditioner is controlled such that according to the flow velocity of refrigerant in heat exchanger described in
The flow velocity of refrigerant is less than predetermined threshold value, can also include：The aperture of expansion valve is controlled according to the flow velocity of refrigerant in heat exchanger
System is so that the flow velocity of refrigerant is less than predetermined threshold value.I.e. by changing the aperture of expansion valve, refrigerant flow rate is set to slowly reach first
Untill preset flow rate.Avoid refrigerant flow rate from lifting caused big noise rapidly, avoid influenceing user.
It is of course also possible to control the frequency of compressor and the aperture of expansion valve simultaneously, refrigerant flow rate is entered from these two aspects
Row control.
In an embodiment of the present invention, corresponded to when the current frequency of frequency-changeable compressor reaches noise setting value in stillness mode
Frequency when, if continue control frequency-changeable compressor raising frequency, the frequency of frequency-changeable compressor can be made to rise to resonant frequency, now can
Resonate, so as to cause noise to increase.Therefore, when the current frequency of frequency-changeable compressor reaches noise setting value in stillness mode
, it is necessary to control frequency-changeable compressor to stop raising frequency during corresponding frequency, increase noise to avoid occurring resonating.
In one embodiment of the invention, parallel-flow heat exchanger includes refrigerant pipe and the header being connected with refrigerant pipe,
Or parallel-flow heat exchanger includes micro-channel flat and the header being connected with the refrigerant pipe.
Specifically, when heat exchanger includes the refrigerant pipe of header connection, when as evaporator in use, refrigerant is from cooling medium liquid
Pipe enters heat exchanger, cold after refrigerant pipe accesses header when larger cold medium flux be present because cold medium flux is concentrated
The flow area of matchmaker is significantly expanded, so, larger disturbance can be produced.Simultaneously as flat tube can hinder flow direction, formed bright
Aobvious baffling and impact, susceptible to noise (as evaporator).When heat exchanger connects including micro-channel flat with header, make
(the most frequently used state of air conditioner, and side can typically be used as evaporator use indoors) refrigerant is from flat tube stream when being used for evaporator
Enter into header, when cold medium flux is very big (fast-refrigerating heating), just occur in flat tube that to evaporate incomplete refrigerant small
Drop, droplet are flowed out with very high speed from flat tube, and are impinged upon on the inwall of the header of direction, produce rustle.When
When appearance cold medium flux drastically changes, the heat exchange situation of air side is constant, or equal proportion does not change, then appears in this
In the case of shear, there is the situation of substantial amounts of refrigerant droplet impact header.Pipe is flowed into the microchannel of flat tube, can all be produced
The drastically change of raw and cold matchmaker's flow channel, when the flowing velocity in header has greatly changed, noise can be caused.Due to
Caused by being the inherent structure, so under stillness mode, refrigerant flow rate is controlled by the above method, can effectively be dropped
It is low or even abate the noise, avoid influenceing user, lift Consumer's Experience.
The control method of the air conditioner of the embodiment of the present invention, when air conditioner is in stillness mode, with the first relatively low frequency
Rate control frequency-changeable compressor starts, and after the first preset time, is compressed with relatively low the first scheduled rate control frequency conversion
Machine carries out raising frequency, and the refrigerant stream very little required for low-frequency start, so as to reduce the noise of refrigerant flowing, and frequency-changeable compressor delays
Slow raising frequency can slow down the velocity variations of refrigerant stream, so as to avoid the noise that the speed acute variation of refrigerant stream is brought.In addition,
When the frequency of frequency-changeable compressor reaches frequency corresponding to noise setting value in stillness mode, stop raising frequency, frequency conversion pressure can be avoided
Occur to resonate and caused noise with other devices or refrigerant stream when the frequency of contracting machine reaches resonant frequency.Thus, this method energy
The amount of flow and impulsive force of refrigerant are enough effectively reduced, so as to reduce refrigerant sound and mechanicalness noise, avoids and user is caused to beat
Disturb, improve the experience of user.
In one embodiment of the invention, the control method of the air conditioner, comprises the following steps：
1st, when air conditioner is in stillness mode, the frequency-changeable compressor for controlling air conditioner with first frequency starts.
In an embodiment of the present invention, stillness mode is the operational mode for the purpose of reducing air conditioner operation noise, can
Apply in some special occasions, for example, the explain and publicise situation or other of sleep quality, meeting room need to reduce noise to user
Situation about bothering.
Specifically, the remote control of the human-computer interaction interface, air conditioner that can be provided in above-mentioned special occasions, user by air conditioner
The operational mode of air conditioner is arranged to stillness mode by device or the mobile terminal to be communicated with air conditioner.
In an embodiment of the present invention, first frequency can be that the low-limit frequency that can run of frequency-changeable compressor of air conditioner is attached
Near frequency values.First frequency is set in advance according to the frequency of the sustainable low-frequency operation of the frequency-changeable compressor used in air conditioner
It is fixed.For example, can be 4-10 hertz, the frequency range be the frequency for the sustainable low-frequency operation of frequency-changeable compressor for being currently able to realization
Rate.It should be appreciated that with the continuous improvement of technology, the frequency of the sustainable low-frequency operation of frequency-changeable compressor can become lower, first
Frequency can be adjusted accordingly based upon the frequency of the sustainable low-frequency operation of frequency-changeable compressor.
2nd, after by the first preset time, raising frequency is carried out with the first scheduled rate control frequency-changeable compressor.
Specifically, in an embodiment of the present invention, when frequency-changeable compressor low frequency (first frequency) is run, compressor it is defeated
Tolerance can be fewer, and so after a period of time is run, the pressure of high-pressure side and low-pressure side can progressively tend to balance, i.e. high-pressure side
It is poor to reach preset pressure with the pressure differential of low-pressure side, now can control frequency-changeable compressor to carry out raising frequency.
Therefore, in one embodiment of the invention, the first preset time is that the frequency conversion of air conditioner is controlled with first frequency
After compressor start, the high-pressure side of frequency-changeable compressor and the pressure differential of low-pressure side reach the preset pressure difference required time.
Wherein, the first scheduled rate is the speed less than scheduled rate threshold value.In a preferred embodiment of the invention,
Scheduled rate threshold value can be 0.3 hertz/sec, and certainly, scheduled rate threshold value can also be 0.8 hertz/sec, 0.1 hertz/sec etc..
In an embodiment of the present invention, frequency-changeable compressor is with a relatively low speed raising frequency, so as to the gas transmission speed of compressor
Degree change is slower, so for the heat exchange state of evaporator and condenser with regard to low uncertainty.By taking condenser as an example, when the refrigerant of entrance
During gas flow increase, the flow velocity of refrigerant can be improved, while the gas-liquid skewness in condenser can be caused, and when gas transmission speed becomes
When changing slower, the flow velocity of refrigerant can be reduced, so as to which the change of this gas-liquid distribution also slows down, so as to be not likely to produce in heat exchanger
Refrigerant flow noise, mechanicalness noise can also reduce.
3rd, judge whether the current frequency of frequency-changeable compressor reaches frequency corresponding to noise setting value in stillness mode.
In an embodiment of the present invention, frequency corresponding to noise setting value can be one or more in stillness mode, can divide
Not Wei refrigerant, compressor or other devices etc. resonant frequency.For example, if resonant frequency is 3 hertz, stillness mode
Frequency corresponding to middle noise setting value can be 3 hertz.
If the 4, the current frequency of frequency-changeable compressor reaches frequency corresponding to noise setting value in stillness mode, control becomes
Frequency compressor stops raising frequency.
In an embodiment of the present invention, corresponded to when the current frequency of frequency-changeable compressor reaches noise setting value in stillness mode
Frequency when, if continue control frequency-changeable compressor raising frequency, the frequency of frequency-changeable compressor can be made to rise to resonant frequency, now can
Resonate, so as to cause noise to increase.Therefore, when the current frequency of frequency-changeable compressor reaches noise setting value in stillness mode
, it is necessary to control frequency-changeable compressor to stop raising frequency during corresponding frequency, increase noise to avoid occurring resonating.
5th, the frequency for keeping frequency-changeable compressor is frequency corresponding to noise setting value in stillness mode, and pre- by second
If after the time, controlling the frequency of frequency-changeable compressor to redirect as second frequency, wherein, second frequency is higher than noise in stillness mode and set
Frequency corresponding to definite value.
In one embodiment of the invention, second frequency can determine according to the raising frequency cycle, for example, can be two and rise
The frequency cycle.For example, if the raising frequency cycle of frequency-changeable compressor is 1 second, i.e. the frequency of frequency-changeable compressor is per second to lift 0.3 hertz,
Then the second preset time is 2 seconds.Second frequency be on the basis of current frequency, it is by the second preset time and pre- according to first
If the frequency that speed is increased to.For example, if current frequency is 2.8 hertz, the first scheduled rate is 0.3 hertz/sec,
Second preset time is 2 seconds, then second frequency is 3.4 hertz.
Thus, after keeping current frequency to wait the second preset time, the frequency of frequency-changeable compressor is controlled by stillness mode
Frequency corresponding to middle noise setting value jumps to second frequency, can skip resonant frequency, is produced so as to avoid because resonance occurs
Raw noise.
6th, frequency-changeable compressor is controlled to continue raising frequency by second frequency with the first scheduled rate.
The control method of the air conditioner of the embodiment of the present invention, made an uproar in the current frequency of frequency-changeable compressor reaches stillness mode
Corresponding to sound setting value during frequency, stop raising frequency, and after continuing the second preset time, control frequency-changeable compressor frequency redirect for
Second frequency continue raising frequency, can skip resonant frequency, so as to avoid because occur resonance and caused by noise, further reduce
Noise is bothered user, lifts Consumer's Experience.
In order to reduce the operation noise of the coolant system during compressor frequency switches, in embodiments of the invention
In, the indoor heat exchanger of air conditioner is provided with the pressure that pressure sensing cell is used to read relevant position；According to the big of pressure value
State that is small and currently running, by the raising frequency and the frequency reducing that control compressor frequency.Wherein, raising frequency according to raising frequency situation to target
Pressure differential is carried out respectively to obtain multiple raising frequency pressure values, after each raising frequency, if detect the high-pressure side with it is described low
The pressure differential of pressure side reaches raising frequency value, then continues raising frequency, i.e., can be poor to goal pressure according to raising frequency situation during raising frequency
Carry out respectively to obtain multiple raising frequency pressure values, after each raising frequency, if detecting the high-pressure side and the low-pressure side
Pressure differential reaches raising frequency value, then continues raising frequency.Wherein, the height of coolant system when goal pressure difference is reaches the temperature of user's setting
Press the pressure of side and the pressure differential of coolant system initial pressure.
Pressure sensing cell can detect the pressure of current high-pressure side and/or low-pressure side, due to refrigerant jet velocity with
High-pressure side and the pressure difference correlation of low-pressure side, so, can be to the injection of refrigerant by the pressure for detecting high-pressure side and low-pressure side
Speed carries out more accurate control, so as to improve the operational efficiency of air conditioner.
Specifically, although by adjust compressor running frequency can control pressure to a certain extent, shadow
Ringing the factor of pressure also includes heat-exchange temperature, the abundant intensity of coolant quantity and the concrete structure shape of heat exchanger of indoor external heat exchanger
Formula etc..Such as：When heat-exchange temperature is relatively low, heat exchanger is larger and/or refrigerant abundant intensity is relatively low, compressor operating frequency is for changing
The influence of the pressure of hot device correspondingly reduces, so, in order to improve the accuracy of control, in the more common scenario, pressed improving
, can be by detecting the pressure of heat exchanger (i.e. evaporator and condenser), and according to the pressure while running frequency of contracting machine
It is controlled, further noise can be controlled, while improves the operational efficiency of air conditioner.That is, using pressure
The control of contracting machine running frequency and the control of the pressure to expansion valve, it is possible to achieve convenient quantitative control, such as：According to testing
The data arrived, in some cases, the running frequency can produce less noise (requirement for meeting stillness mode), can be with
Carried out according to the control rule, meet to improve operational efficiency while user's request.
Specifically, it is assumed that initial pressure is P0, the height of coolant system when current working is issued to the design temperature of user
The pressure for pressing side is P1, then coolant system needs to boost to P1 pressure from P0 pressure, and goal pressure difference is P1-P0.For convenience
Description, for example, goal pressure difference can be divided into 10 ladders, the pressure △ P=(P1-P0)/10 lifted every time,
Then after the compressor start of coolant system, when system is stabilized to P0+ △ P, raising frequency operation can be carried out again, and so on, directly
It is P1 on high-tension side pressure.Due to refrigerant pressure it is unstable can extra generation noise, the particularly pipeline of condenser compared with
It is long, and connection is complex, can have a small amount of uncondensable gas particularly in some condensers, when raising frequency is very fast, greatly
Measure gaseous working medium to enter condenser and can not sequentially, effectively condense, the movement disorder in condenser is will result in, so as to cause
Vibrations and noise.After pressure balance, then compressor frequency is improved, the capacity of steady raising compressor, can effectively subtracted
Less or eliminate the caused noise during start-up course or compressor frequency switch.
In an embodiment of the present invention, for the control process of stopping frequency-changeable compressor, the original with starting frequency-changeable compressor
Manage identical.Specifically, when receiving the halt instruction of control frequency-changeable compressor, frequency-changeable compressor is controlled with the second scheduled rate
Carry out frequency reducing；It is to drop to the second preset flow rate to judge the refrigerant flow rate, wherein, second preset flow rate is less than described the
One preset flow rate；
If the refrigerant flow rate drops to the second preset flow rate, the frequency-changeable compressor is controlled to stop frequency reducing.Wherein,
Second scheduled rate can be identical with the first scheduled rate, also can be different from the first scheduled rate, can be 0.3 hertz/sec, 0.8 hertz
Hereby/second, 0.1 hertz/sec etc..
In one embodiment of the invention, after control frequency-changeable compressor stops frequency reducing, in addition to：Keep frequency conversion pressure
The frequency of contracting machine is frequency corresponding to noise setting value in stillness mode, and after the 3rd preset time, controls frequency conversion pressure
The frequency of contracting machine is redirected as the 3rd frequency, wherein, the 3rd frequency is less than frequency corresponding to noise setting value in stillness mode；Control
Frequency-changeable compressor continues frequency reducing since the 3rd frequency with the second scheduled rate；When the frequency of frequency-changeable compressor is down to first frequency
When, stop frequency reducing, and after the first preset time, stop frequency-changeable compressor.Wherein, the 3rd frequency can be true according to the frequency reducing cycle
It is fixed, for example, can be two frequency reducing cycles.For example, if the raising frequency cycle of frequency-changeable compressor is 1 second, i.e. frequency-changeable compressor
Frequency it is per second reduce by 0.3 hertz, then the 3rd preset time be 2 seconds.3rd frequency is on the basis of current frequency, by the
Three preset times and the frequency being reduced to according to the second scheduled rate.For example, if current frequency is 3.2 hertz, the
Two scheduled rates are 0.3 hertz/sec, and the 3rd preset time is 2 seconds, then the 3rd frequency is 2.6 hertz.
Thus, after keeping current frequency to wait the 3rd preset time, the frequency of frequency-changeable compressor is controlled by stillness mode
Frequency corresponding to middle noise setting value jumps to the 3rd frequency, can skip resonant frequency, so as to avoid stopping frequency-changeable compressor
During because occur resonance and caused by noise.
In one embodiment of the invention, the heat exchanger is parallel-flow heat exchanger.Specifically, the one of the present invention
In individual example, parallel-flow heat exchanger includes header and the refrigerant pipe connected with header, makees when as parallel-flow heat exchanger
For evaporator in use, refrigerant is entered among parallel-flow heat exchanger from refrigerant liquid pipe.Because cold medium flux is concentrated very much, when cold
When the flow velocity of matchmaker is excessive, after refrigerant pipe accesses header, the flow area of refrigerant is significantly expanded, so, it can produce larger
Disturbance, so as to produce noise.In another example of the present invention, parallel flow heat device includes micro-channel flat and connected with header
Logical, refrigerant is flowed into header from micro-channel flat when being used as evaporator, (the fast-refrigerating system when cold medium flux is very big
Heat), just occur in flat tube and evaporate incomplete refrigerant droplet, refrigerant droplet is flowed out with very high speed from flat tube, and
On the inwall for impinging upon the header of direction, the noise of rustle can be produced.When there is refrigerant flow rate and drastically changing, air side
Heat exchange situation it is constant, or not equal proportion change, then in the case of appearing in the shear, there is the small liquid of substantial amounts of refrigerant
The situation of drop impact header.Pipe is flowed into the microchannel of flat tube, can all be produced the drastically change of refrigerant flow channel, be worked as collection
When flowing velocity in flow tube has greatly changed, noise can be caused.
In one embodiment of the invention, in addition to：The frequency-changeable compressor is being controlled to carry out with the first scheduled rate
While raising frequency, the rotating speed of the outdoor fan is controlled to gradually step up.
The control method of the air conditioner of the embodiment of the present invention, when air conditioner is in stillness mode, with the first relatively low frequency
Rate control frequency-changeable compressor starts, and after the first preset time, is compressed with relatively low the first scheduled rate control frequency conversion
Machine carries out raising frequency, the refrigerant stream very little required for low-frequency start, so as to reduce refrigerant flow rate noise caused greatly, and frequency conversion pressure
The slow raising frequency of contracting machine can slow down the velocity variations of refrigerant stream, so as to avoid the noise that refrigerant flow rate acute variation is brought.Subtract
Few refrigerant sound and mechanicalness noise, avoid and user are caused to bother, improve the experience of user.
The present invention also proposes a kind of control device of air conditioner.Wherein, air conditioner, including heat exchanger, the connection heat exchange
The frequency-changeable compressor of the coolant system of device, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor fan and driving refrigerant operating, its
In, coolant system refrigerant flowing be present the structure of large space poured from small space, the control device of the air conditioner is used in sky
When tune device is in stillness mode, flowing velocity of the control liquid refrigerants in coolant system.
In one embodiment of the invention, the structure that refrigerant flowing pours large space from small space is that coolant connecting tube connects
It is connected to the structure of header.Or refrigerant flowing from small space pour large space structure be parallel-flow heat exchanger flat tube it is cold
Matchmaker's passage connects the structure of header.
As shown in Fig. 2 in one embodiment of the invention, control device is used to control liquid refrigerants in coolant system
Flowing velocity be the aperture of regulation compressor frequency and/or expansion valve, control device includes：Start submodule 10, first to control
System module 20, the control submodule 40 of judging submodule 30 and second.
Wherein, start submodule 10 to be used for when the air conditioner is in stillness mode, the sky is controlled with first frequency
The frequency-changeable compressor of device is adjusted to start.First control submodule 20 is used for after by the first preset time, with the first default speed
Rate controls the frequency-changeable compressor to carry out raising frequency.Judging submodule 30 is used to judge whether the refrigerant flow rate reaches first and preset
Flow velocity.Second control submodule 40 is used to judge that the refrigerant flow rate reaches first preset flow rate in the judging submodule
When, control the frequency-changeable compressor to stop raising frequency.
In one embodiment of the invention, the indoor heat exchanger of air conditioner is provided with pressure sensing cell and is used to read phase
Answer the pressure of position；Control device is for the size according to pressure value and the state currently run, by controlling compressor frequency
Raising frequency and frequency reducing.Further, raising frequency is carried out respectively according to raising frequency situation to goal pressure difference to obtain multiple raising frequency pressure
Value, after each raising frequency, if detecting that the high-pressure side and the pressure differential of the low-pressure side reach raising frequency value, continues to rise
Frequently.
Pressure sensing cell can detect the pressure of current high-pressure side and/or low-pressure side, due to refrigerant jet velocity with
High-pressure side and the pressure difference correlation of low-pressure side, so, can be to the injection of refrigerant by the pressure for detecting high-pressure side and low-pressure side
Speed carries out more accurate control, so as to further increase the operational efficiency of air conditioner.
Specifically, although by adjust compressor running frequency can control pressure to a certain extent, shadow
Ringing the factor of pressure also includes heat-exchange temperature, the abundant intensity of coolant quantity and the concrete structure shape of heat exchanger of indoor external heat exchanger
Formula etc..Such as：When heat-exchange temperature is relatively low, heat exchanger is larger and/or refrigerant abundant intensity is relatively low, compressor operating frequency is for changing
The influence of the pressure of hot device correspondingly reduces, so, in order to improve the accuracy of control, in the more common scenario, pressed improving
, can be by detecting the pressure of heat exchanger (i.e. evaporator and condenser), and according to the pressure while running frequency of contracting machine
It is controlled, further noise can be controlled, while improves the operational efficiency of air conditioner.That is, using pressure
The control of contracting machine running frequency and the control of the pressure to expansion valve, it is possible to achieve convenient quantitative control, such as：According to testing
The data arrived, in some cases, the running frequency can produce less noise (requirement for meeting stillness mode), can be with
Carried out according to the control rule, meet to improve operational efficiency while user's request.
In one embodiment of the invention, the heat exchanger is parallel-flow heat exchanger.Specifically, the one of the present invention
In individual example, parallel-flow heat exchanger includes header and the refrigerant pipe connected with header, makees when as parallel-flow heat exchanger
For evaporator in use, refrigerant is entered among parallel-flow heat exchanger from refrigerant liquid pipe.Because cold medium flux is concentrated very much, when cold
When the flow velocity of matchmaker is excessive, after refrigerant pipe accesses header, the flow area of refrigerant is significantly expanded, so, it can produce larger
Disturbance, so as to produce noise.In another example of the present invention, parallel flow heat device includes micro-channel flat and connected with header
Logical, refrigerant is flowed into header from micro-channel flat when being used as evaporator, (the fast-refrigerating system when cold medium flux is very big
Heat), just occur in flat tube and evaporate incomplete refrigerant droplet, refrigerant droplet is flowed out with very high speed from flat tube, and
On the inwall for impinging upon the header of direction, the noise of rustle can be produced.When there is refrigerant flow rate and drastically changing, air side
Heat exchange situation it is constant, or not equal proportion change, then in the case of appearing in the shear, there is the small liquid of substantial amounts of refrigerant
The situation of drop impact header.Pipe is flowed into the microchannel of flat tube, can all be produced the drastically change of refrigerant flow channel, be worked as collection
When flowing velocity in flow tube has greatly changed, noise can be caused.Therefore, can be with by the device of the embodiment of the present invention
Reduce and even abate the noise, avoid influenceing user, lift Consumer's Experience.
The control device of the air conditioner of the embodiment of the present invention, when air conditioner is in stillness mode, with the first relatively low frequency
Rate control frequency-changeable compressor starts, and after the first preset time, is compressed with relatively low the first scheduled rate control frequency conversion
Machine carries out raising frequency, the refrigerant stream very little required for low-frequency start, so as to reduce refrigerant flow rate noise caused greatly, and frequency conversion pressure
The slow raising frequency of contracting machine can slow down the velocity variations of refrigerant stream, so as to avoid the noise that refrigerant flow rate acute variation is brought.Subtract
Few refrigerant sound and mechanicalness noise, avoid and user are caused to bother, improve the experience of user.
It should be noted that the specific implementation of the device of the embodiment of the present invention and the specific implementation of method part
It is similar, the description of method part is specifically referred to, in order to reduce redundancy, is not repeated herein.
Embodiment of the invention discloses that a kind of air conditioner, including：The control of air conditioner described in embodiment described above
Device.The air conditioner can effectively reduce the amount of flow and impulsive force of refrigerant, so as to reduce refrigerant sound and mechanicalness noise, avoid
User caused to bother, improves the experience of user
The air conditioner of the embodiment of the present invention, by the control device of air conditioner, the noise of refrigerant flowing can be reduced, and kept away
Exempted from the noise that the speed acute variation of refrigerant stream is brought, and when the frequency of frequency-changeable compressor reaches resonant frequency with other devices
Part or refrigerant stream occur to resonate and caused noise.Thereby, it is possible to effectively reduce the amount of flow and impulsive force of refrigerant, so as to subtract
Few refrigerant sound and mechanicalness noise, avoid and user are caused to bother, improve the experience of user.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that two or more, such as two
It is individual, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (11)
- A kind of 1. control method of air conditioner, it is characterised in that the air conditioner, including heat exchanger, the connection heat exchanger The frequency-changeable compressor of coolant system, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor fan and driving refrigerant operating, wherein, Refrigerant flowing be present and pour the structure of large space from small space in described coolant system, the heat exchanger include refrigerant pipe and with institute The connected header of refrigerant pipe is stated, or, the heat exchanger includes micro-channel flat and the header being connected with the refrigerant pipe, It the described method comprises the following steps：When the air conditioner is in stillness mode, flowing velocity of the control liquid refrigerants in coolant system；Wherein, it is described to control flowing velocity of the liquid refrigerants in coolant system as regulation compressor frequency and/or expansion valve Aperture, specifically include：The frequency-changeable compressor for controlling the air conditioner with first frequency starts；After by the first preset time, the frequency-changeable compressor is controlled to carry out raising frequency with the first scheduled rate；Judge whether the flow velocity of the refrigerant in the heat exchanger reaches the first preset flow rate；AndIf the refrigerant flow rate reaches first preset flow rate, the frequency-changeable compressor is controlled to stop raising frequency so that described The flow velocity of refrigerant is less than predetermined threshold value.
- 2. the control method of air conditioner as claimed in claim 1, it is characterised in that the refrigerant flowing is poured greatly from small space The structure in space is the structure that coolant connecting tube is connected to header.
- 3. the control method of air conditioner as claimed in claim 1, it is characterised in that the refrigerant flowing is poured greatly from small space The structure in space is the structure of the flat tube refrigerant passage connection header of parallel-flow heat exchanger.
- 4. the method as described in claim 1, it is characterised in that the indoor heat exchanger of the air conditioner is provided with pressure detecting list Member is used for the pressure for reading relevant position；According to the size of pressure value and the state currently run, by the raising frequency and the frequency reducing that control compressor frequency.
- 5. method as claimed in claim 4, it is characterised in that described raising frequency is carried out according to raising frequency situation to goal pressure difference Respectively to obtain multiple raising frequency pressure values, after each raising frequency, if detecting the pressure of the high-pressure side and the low-pressure side Difference reaches raising frequency value, then continues raising frequency.
- A kind of 6. control device of air conditioner, it is characterised in that the air conditioner, including heat exchanger, the connection heat exchanger The frequency-changeable compressor of coolant system, the throttling arrangement of junction chamber internal-external heat exchanger device, outdoor fan and driving refrigerant operating, wherein, Refrigerant flowing be present and pour the structure of large space from small space in described coolant system, the heat exchanger include refrigerant pipe and with institute The connected header of refrigerant pipe is stated, or, the heat exchanger includes micro-channel flat and the header being connected with the refrigerant pipe, Described device is used for when the air conditioner is in stillness mode, flowing velocity of the control liquid refrigerants in coolant system, its In, the control device is used to control flowing velocity of the liquid refrigerants in coolant system for regulation compressor frequency and/or swollen The aperture of swollen valve, the control device include：Start submodule, for when the air conditioner is in stillness mode, the frequency conversion of the air conditioner to be controlled with first frequency Compressor start；First control submodule, for after by the first preset time, controlling the frequency conversion to compress with the first scheduled rate Machine carries out raising frequency；Whether judging submodule, the refrigerant flow rate for judging in the heat exchanger reach the first preset flow rate；Second control submodule, for when the judge module judges that the refrigerant flow rate reaches first preset flow rate, The frequency-changeable compressor is controlled to stop raising frequency.
- 7. the control device of air conditioner as claimed in claim 6, it is characterised in that the refrigerant flowing is poured greatly from small space The structure in space is the structure that coolant connecting tube is connected to header.
- 8. the control device of air conditioner as claimed in claim 6, it is characterised in that the refrigerant flowing is poured greatly from small space The structure in space is the structure of the flat tube refrigerant passage connection header of parallel-flow heat exchanger.
- 9. the control device of air conditioner as claimed in claim 6, it is characterised in that the indoor heat exchanger of the air conditioner is set There is pressure sensing cell to be used for the pressure for reading relevant position；The control device is for the size according to pressure value and the state currently run, by the raising frequency for controlling compressor frequency And frequency reducing.
- 10. the control device of air conditioner as claimed in claim 9, it is characterised in that described raising frequency is according to raising frequency situation pair Goal pressure difference is carried out respectively to obtain multiple raising frequency pressure values, after each raising frequency, if detecting the high-pressure side and institute The pressure differential for stating low-pressure side reaches raising frequency value, then continues raising frequency.
- A kind of 11. air conditioner, it is characterised in that including：The control device of air conditioner as described in claim any one of 6-10.
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| CN104791983B (en) * | 2015-04-24 | 2018-04-24 | 广东美的制冷设备有限公司 | Suppress the apparatus and method of abnormal sound when thermoregulating system heating starts |
| CN109341018B (en) * | 2018-10-19 | 2021-04-16 | Tcl空调器(中山)有限公司 | Air conditioner control method, air conditioner and computer readable storage medium |
| CN109405220B (en) * | 2018-11-07 | 2021-04-09 | 广东美的暖通设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN110486903B (en) * | 2019-08-15 | 2021-09-28 | 海信（山东）空调有限公司 | Load self-adaption control method and system during closed-loop starting of variable frequency controller |
| CN110925215B (en) * | 2019-11-11 | 2021-09-21 | 珠海凌达压缩机有限公司 | Compressor noise reduction control method and device, controller and control system |
| CN111023310A (en) * | 2019-12-13 | 2020-04-17 | 青岛海信日立空调系统有限公司 | Multi-split air conditioner |
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