CN110425700A - A kind of air conditioner low temperature heating starting control method, device and air conditioner - Google Patents
A kind of air conditioner low temperature heating starting control method, device and air conditioner Download PDFInfo
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- CN110425700A CN110425700A CN201910920409.8A CN201910920409A CN110425700A CN 110425700 A CN110425700 A CN 110425700A CN 201910920409 A CN201910920409 A CN 201910920409A CN 110425700 A CN110425700 A CN 110425700A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of air conditioner low temperature heating starting control method, device and air conditioners, which comprises obtains environment temperature；When the environment temperature is less than set temperature, the first enabled instruction is sent to the blower of outdoor unit, the blower is controlled and starts and run with maximum speed；After third duration, the second enabled instruction is sent to compressor, controls the compressor start；After 5th duration, the electric expansion valve of outdoor unit is opened.The air conditioner low temperature heating starting control method can quickly establish system overheat degree under the premise of guaranteeing that system oil drain quantity is low, heat transfer effect is promoted, so that compressor quickly heats, reduces oil drain quantity, the reliability that ensure that system realizes the quick heating of air conditioner low temperature heating starting.
Description
Technical field
The present invention relates to air-conditioning technical fields, start control method, device in particular to a kind of air conditioner low temperature heating
And air conditioner.
Background technique
When air-conditioning heats starting in low temperature environment, it is necessary to so that heat exchanger is risen to the condition of high temperature with sufficiently fast speed,
Guarantee that the oil extraction rate of compressor is low, is just able to achieve quick heating again.But since environment temperature is low, heat exchanger needs the long period
The condition of high temperature can just be risen to；Since environment temperature is lower, refrigeration oil is more readily dissolved in refrigerant, and oil drain quantity is larger, influence be
The reliability of system.Existing air-conditioning is when low-temperature heating starts, it is difficult to while ensuring that heat exchanger rises to height with sufficiently fast speed
The oil extraction rate of temperature state and compressor is low, and then is difficult to realize the quick heating of air-conditioning.
It can be seen that user need it is a kind of can make heat exchanger with sufficiently fast speed rise to the condition of high temperature and guarantee compression
The low method of the oil extraction rate of machine.
Summary of the invention
Problems solved by the invention is: existing air-conditioning is when low-temperature heating starts, it is difficult to while ensuring heat exchanger with enough
Fast speed rises to the condition of high temperature and the oil extraction rate of compressor is low, it is difficult to realize the quick heating of air-conditioning.
To solve the above problems, the present invention provides a kind of air conditioner low temperature heating starting control method, comprising:
Obtain environment temperature；
When the environment temperature is less than set temperature, the first enabled instruction is sent to the blower of outdoor unit, controls the blower
Start and is run with maximum speed；
After first duration, the second enabled instruction is sent to compressor, controls the compressor start.
In this way, system overheat degree can quickly be established under the premise of guaranteeing that system oil drain quantity is low, heat transfer effect is promoted, so that
Compressor quickly heats, and reduces oil drain quantity, ensure that the reliability of system, realizes the quick system of air conditioner low temperature heating starting
Heat.
Optionally, after first duration, to compressor send the second enabled instruction, control the compressor start it
Afterwards, the method also includes:
After 5th duration, the electric expansion valve of outdoor unit is opened.
In this way, can be when air conditioner low temperature heating starts, control electric expansion valve is later than compressor start, can make outdoor heat exchange
Refrigerant in device sufficiently exchanges heat, and promotes heat transfer effect, and heat exchanger can rise to the condition of high temperature with sufficiently fast speed, facilitate reality
The quick heating of existing air conditioner low temperature heating starting.
Optionally, when the environment temperature is less than set temperature, the first enabled instruction, control are sent to the blower of outdoor unit
After making the blower starting and being run with maximum speed, the method also includes:
After second duration, controls the blower and run with preset noise margin revolving speed.
In this way, can both exchange heat to greatest extent using blower, the quick of air conditioner low temperature heating starting is helped to realize
Heating, and can avoid lower noise user experience.
Optionally, after first duration, to compressor send the second enabled instruction, control the compressor start it
Afterwards, the method also includes:
The compressor is controlled to run with first frequency.
It is run in this way, controlling compressor after compressor start with upper frequency, helps quickly to establish system overheat degree,
Heat transfer effect is promoted, and then helps to realize the quick heating of air conditioner low temperature heating starting.
Optionally, it controls after the compressor runs with first frequency, the method also includes:
After third duration, the running frequency of the compressor is reduced to second frequency, controls the compressor with described second
Frequency runs the 4th duration, and the second frequency is less than the first frequency.
It can guarantee the reliability of system while realizing that cold-starting quickly heats in this way.
After 5th duration, after the electric expansion valve for opening outdoor unit, the method also includes:
It controls the electric expansion valve and the 6th duration is run with initial step number.
In this way, control electric expansion valve after opening electric expansion valve with initial step number and run the 6th duration, it can maximum journey
The control using electric expansion valve of degree, Lai Jianli system overheat degree promote heat transfer effect.
Optionally, the value range of the first frequency is 35Hz-50Hz；
Or, the value range of the second frequency is 20Hz-34Hz.
System overheat degree can be quickly established in this way, promotes heat transfer effect, also be can avoid system and generated security risk.
Optionally, the value range of first duration is 10s-60s.
In this way, the first duration value is more excellent, oil drain quantity can be both effectively reduced, also can avoid influencing what heat exchange temperature rose
Speed, it is ensured that realize the quick heating of air conditioner low temperature heating starting.
Another object of the present invention is to propose a kind of air conditioner low temperature heating starting control device, existed with solving existing air-conditioning
When low-temperature heating starts, it is difficult to while ensuring that heat exchanger rises to the oil extraction of the condition of high temperature and compressor with sufficiently fast speed
Rate is low, it is difficult to the problem of realizing the quick heating of air-conditioning.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air conditioner low temperature heating starting control device, comprising:
Control unit, described control unit is for obtaining environment temperature；
Described control unit is also used to when the environment temperature is less than set temperature, sends the first starting to the blower of outdoor unit
Instruction is controlled the blower and starts and run with maximum speed；
After described control unit is also used to the first duration, the second enabled instruction is sent to compressor, controls the compressor start；
After first duration, the second enabled instruction is sent to compressor, after controlling the compressor start, the control is single
After member is also used to the 5th duration, the electric expansion valve of outdoor unit is opened.
The air conditioner low temperature heating starting control device is with above-mentioned air conditioner low temperature heating starting control method relative to existing
Advantage possessed by technology is identical, and details are not described herein.
It is difficult to solve existing air-conditioning in low-temperature heating starting another object of the present invention is to propose a kind of air conditioner
It is low with the oil extraction rate for ensuring that heat exchanger rises to the condition of high temperature and compressor with sufficiently fast speed simultaneously, it is difficult to realize air-conditioning
Quick heating the problem of.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air conditioner, computer readable storage medium and processor including being stored with computer program, the computer journey
When sequence is read and run by the processor, air conditioner low temperature heating starting control method described in any of the above embodiments is realized.
The air conditioner starts control method possessed advantage phase compared with the existing technology with above-mentioned air conditioner low temperature heating
Together, details are not described herein.
Another object of the present invention is to propose a kind of computer readable storage medium, to solve existing air-conditioning in low temperature system
When thermal starting, it is difficult to while the oil extraction rate for ensuring that heat exchanger rises to the condition of high temperature and compressor with sufficiently fast speed is low,
The problem of being difficult to realize the quick heating of air-conditioning.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of computer readable storage medium, the computer-readable recording medium storage have computer program, the computer
When program is read out by the processor and runs, air conditioner low temperature heating starting control method described in any of the above embodiments is realized.
The computer readable storage medium and above-mentioned air conditioner low temperature heating start control method institute compared with the existing technology
Have the advantage that identical, details are not described herein.
Detailed description of the invention
Fig. 1 is the flow chart that air conditioner low temperature heating described in the embodiment of the present invention starts control method；
The Booting sequence figure of outdoor unit blower when Fig. 2 is the starting of air conditioner low temperature heating described in the embodiment of the present invention；
The Booting sequence figure of compressor when Fig. 3 is the starting of air conditioner low temperature heating described in the embodiment of the present invention；
The Booting sequence figure of outdoor unit electric expansion valve when Fig. 4 is the starting of air conditioner low temperature heating described in the embodiment of the present invention；
Fig. 5 is the overall flow figure that air conditioner low temperature heating described in the embodiment of the present invention starts control method.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
It should be noted that the starting in the application controls, it is after receiving power-on instruction from compressor to entire air-conditioning
The basicly stable process of system.The existing entire starting time is generally 0 ~ 30min, but the starting time wants the application
For the quick heating reached, the time is too long.
This application claims scheme be applied to air conditioner and receive control after power-on instruction in 5min, at this stage,
Since the time is of short duration, so many similar control methods in the prior art, are compressed to 5min from 30min that will start the time
Later, it is less applicable in；And the compression due to starting the time, the unstability of system increases, so that the control to system mode
Importance it is more crucial；Realize quick heating, it is necessary to by system mode control in limited range of operation, guarantee pressure
Otherwise the reliability of contracting machine can cause compressor to be easier to break down because of quick heating instead.As shown in Figure 1, it is this
The flow chart of air conditioner low temperature heating starting control method in embodiment；Wherein, which comprises
Step S10 obtains environment temperature；
Step S20 sends the first enabled instruction, control to the blower of outdoor unit when the environment temperature is less than set temperature
The blower is started and is run with maximum speed；
Step S30 after the first duration, sends the second enabled instruction to compressor, controls the compressor start；
In general, air-conditioning sets temperature by judging that environment temperature decides whether to carry out low-temperature heating starting, when environment temperature is less than
When spending, represents air-conditioning and be in low temperature environment, air-conditioning starts low-temperature heating starting.For example, optional when environment temperature is lower than -5 DEG C
Space-time tunes to open the starting of beginning low-temperature heating.
Wherein, the first enabled instruction and the second enabled instruction can be sent by air conditioner indoor unit, can also by remote control preparation or its
There is the device of starting control function to issue for he, and the present embodiment is with the first enabled instruction and the second enabled instruction by air conditioning chamber
Machine transmission is illustrated.The maximum speed is the limit speed that blower can reach, i.e., the highest that motor reliability allows turns
Speed.In the present embodiment, when air conditioner low temperature heating starts, blower can make outdoor heat exchanger pre- in advance prior to compressor start
The suction temperature of heat, compressor increases；Since temperature is higher, the freezing oil mass being dissolved in refrigerant is fewer, works as compressor in this way
When starting, the suction temperature of compressor is high, helps to reduce the meltage that refrigeration oil is dissolved in refrigerant, and then reduce oil extraction
Amount.
When existing air conditioner low temperature heating starts, after the enabled instruction for receiving indoor unit transmission, blower can be according to noise
Tolerance rotation speed operation does not utilize the limit speed of blower to greatest extent, thus do not exchanged heat to greatest extent using blower, room
External heat exchanger temperature rises to the underspeed of the condition of high temperature.Wherein, the noise margin revolving speed is that the outer machine noise of satisfaction is nominal
The revolving speed of value, the noise margin revolving speed are less than the maximum speed, such as: outer machine noise nominal value is 42dB (A), corresponding
Noise margin revolving speed is 800 turns, and the maximum speed that blower allows is 880 turns.In the present embodiment, start in air conditioner low temperature heating
When control the maximum speed that blower is allowed with motor reliability and run, blower is utilized to greatest extent and exchanges heat, improves
The rate of climb of outdoor heat exchanger temperature is, it can be achieved that the quick heating that air conditioner low temperature heating starts, quickly establishes system overheat degree.
In this way, the air conditioner low temperature heating starting control method of the present embodiment can be fast under the premise of guaranteeing that system oil drain quantity is low
The run-up erection system degree of superheat promotes heat transfer effect, ensure that the reliability of system, realizes the quick of air conditioner low temperature heating starting
Heating.
After first duration, the second enabled instruction is sent to compressor and is also wrapped after controlling the compressor start
It includes:
Step S40 after the 5th duration, opens the electric expansion valve of outdoor unit.
Wherein, it should be noted that the 5th duration is to start timing after controlling the compressor start, and effect is
Limit the time interval between compressor start and electric expansion valve unlatching.
In the present embodiment, when air conditioner low temperature heating starts, electric expansion valve is later than compressor unlatching, works as compressor start
When, electric expansion valve still remains off state, due to there being certain refrigerant between electric expansion valve and compressor, at this moment may be used
So that the refrigerant in outdoor heat exchanger is sufficiently exchanged heat, promotes heat transfer effect.
In addition, refrigeration oil is readily dissolved in refrigerant in low temperature, after unit operation, oil drain quantity is big, and it is reliable to influence system
Property.In compressor start, electric expansion valve still remains off state, and the compressor of starting can quickly establish high-pressure side and low
The pressure difference of side is pressed, pressure difference increases, so that it may increase compressor power input after opening electric expansion valve, increases calorific value, this
Sample compressor can be heated quickly, so that refrigeration oil be made to heat rapidly, be separated with refrigerant, reduce oil drain quantity, lifting system can
By property.
In this way, compressor can be made to reduce oil drain quantity, quickly heat.
In this way, the present embodiment can be when air conditioner low temperature heating starts, control electric expansion valve is later than compressor start, can make
Refrigerant in outdoor heat exchanger sufficiently exchanges heat, and promotes heat transfer effect, and heat exchanger can rise to the condition of high temperature with sufficiently fast speed,
Help to realize the quick heating of air conditioner low temperature heating starting.
Optionally, the method also includes:
While starting the blower or before open outdoor unit chassis heat tape.
Outdoor heat exchanger can be made to preheat in advance in this way, advantageously reduce oil drain quantity, and then help to realize air conditioner low temperature system
The quick heating of thermal starting.
Optionally, the value range of the maximum speed is 900rpm-1000rpm, is allowed most according to motor reliability
High revolving speed confirmation." rpm " is the unit " rev/min " of rotation speed of fan.
Optionally, the value range of first duration is 10s-60s.
If the first duration is too small, the waiting time of compressor start is too short, unobvious to the pre-heat effect of compressor, it is difficult to
Effectively reduce oil drain quantity；If the first duration is too long, the waiting time of compressor start is too long, influences the speed of heat exchange temperature rising
Degree.
In this way, the value range of the present embodiment preferably the first duration is 10s-60s, the first duration value is more excellent, can both have
Effect reduces oil drain quantity, also can avoid influencing the speed that heat exchange temperature rises, it is ensured that realize the fast of air conditioner low temperature heating starting
Speed heating.
Optionally, as shown in Fig. 2, after step S20, the method also includes:
Step S21 after the second duration, is controlled the blower and is run with preset noise margin revolving speed.
When air conditioner low temperature heating starts, if control blower is run with maximum speed always, noise can be made excessively high, reduce and use
Family experience.The present embodiment is in the second duration period when blower just starts, and control blower is run with maximum speed, due to wind
When machine just starts, the noise consecutive variations of generation, the experience sense of noise level is insensitive, will not influence user experience；Blower with
After maximum speed runs a period of time, the noise that at this moment blower generates is reached a certain level, if blower is still transported with maximum speed
Row, can reduce user experience, and the present embodiment control blower after blower runs a period of time with maximum speed is turned with noise margin
Speed operation, can avoid lower noise user experience.
In this way, the present embodiment can both be exchanged heat using blower to greatest extent, helps to realize air conditioner low temperature heating and open
Dynamic quick heating, and can avoid lower noise user experience.
In addition, blower is run with preset noise margin revolving speed, noise can be not only reduced, noise effect user is avoided
Experience；And blower, in noise margin revolving speed, it is also possible that the operational efficiency of blower is higher, power saving effect is good；And energy
Enough avoiding blower from running at high speed always leads to tired increase, shortens the working life.
Optionally, the value range of second duration is 30s-120s.
If the second duration is too short, blower is too short with the time that maximum speed is run, and cannot achieve and accelerates heat exchanger heat exchange
Effect；If the second duration is too long, noise can be made excessively high, reduce user experience.
In this way, the value range of the present embodiment preferably the second duration is 30s-120s, it can both realize and accelerate heat exchanger heat exchange
Effect, in turn avoid reduce user experience.
Optionally, as shown in figure 3, after step S30, the method also includes:
Step S31 is controlled the compressor and is run with first frequency.
When existing air conditioner low temperature heating starts, after the second enabled instruction for receiving indoor unit transmission, compressor is usual
With fixed frequency, successively from low to high, step up, the speed for promoting slow heat transfer effect is slow.The present embodiment has just been opened in compressor
When dynamic, control compressor is run with first frequency, when inactive due to system, compressor inside cold Chuck Steak, therefore in short-term
Between inner compressor run with upper frequency, the speed of service of compressor is limited, and oil drain quantity is little, security risk will not be generated,
The frequency upgrading of compressor is controlled at this time to high value, is helped quickly to establish system overheat degree, is promoted heat transfer effect.
It is run in this way, the present embodiment controls compressor after compressor start with upper frequency, helps quickly to establish system
The system degree of superheat, promotes heat transfer effect, and then helps to realize the quick heating of air conditioner low temperature heating starting.
Optionally, as shown in figure 3, after step S31, the method also includes:
The running frequency of the compressor after third duration, is reduced to second frequency by step S32, control the compressor with
The second frequency runs the 4th duration.
Wherein, first frequency is greater than second frequency.After compressor runs the 4th duration with second frequency, according to existing
The frequency of normal control adjusting compressor.
Air conditioner low temperature heating start when, if compressor is run with first frequency always, oil drain quantity can be made excessive, influence be
The reliability of system.The present embodiment after compressor runs third duration with first frequency control compressor with second frequency operation the
Four durations can reduce the running frequency of compressor when oil drain quantity increases to a certain extent, reduce oil drain quantity, to guarantee system
Reliability.
This sample embodiment can guarantee the reliability of system while realizing that cold-starting quickly heats.
Optionally, the value range of the first frequency is 35Hz-50Hz.
If first frequency is too small, system overheat degree can not be quickly established, and then the heat transfer effect of heat exchanger can not be promoted；If
First frequency is excessive, then the oil drain quantity that will lead to compressor is excessive, generates security risk.
In this way, the value range of the preferred first frequency of the present embodiment is 35Hz-50Hz, the value of first frequency is more excellent, i.e.,
System overheat degree can be quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the third duration is 30s-120s.
If third duration is too short, system overheat degree can not be quickly established, and then the heat transfer effect of heat exchanger can not be promoted；If
Third duration is excessive, then the oil drain quantity that will lead to compressor is excessive, generates security risk.
In this way, the value range of the preferred third duration of the present embodiment is 30s-120s, the value of third duration is more excellent, both may be used
System overheat degree is quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the second frequency is 20Hz-34Hz.
If second frequency is too small, heat transfer effect can be reduced, influences the quick heating of system；If second frequency is excessive,
The oil extraction rate of compressor can not be effectively reduced.
In this way, the value range of the preferred second frequency of the present embodiment is 20Hz-34Hz, the value of second frequency is more excellent, can
The oil extraction rate of compressor is effectively reduced under the premise of not influencing system and quickly heating, is conducive to the reliability of raising system.
Optionally, the value range of the 4th duration is 30s-120s.
If the 4th duration is too short, the oil extraction rate of compressor can not be effectively reduced；If the 4th duration is too long, it can reduce and change
Thermal effect influences the quick heating of system.
In this way, the value range of the present embodiment preferably the 4th duration is 30s-120s, the value of the 4th duration is more excellent, can be
The oil extraction rate that compressor is effectively reduced under the premise of system quickly heats is not influenced, is conducive to the reliability of raising system.
Optionally, the value range of the 5th duration is 10s-60s.
If the 5th duration is too small, the refrigerant in outdoor heat exchanger does not exchange heat sufficiently, it is difficult to play and accelerate on heat exchange temperature
The effect of lifting speed；If the 5th duration is too long, the waiting time that electric expansion valve is opened is too long, easily causes the low pressure mistake of system
It is low, generate security risk.
In this way, the value range of the present embodiment preferably the 5th duration is 10s-60s, the 5th duration value is more excellent, can
Under the premise of realizing the quick heating of air conditioner low temperature heating starting, avoid generating security risk.
Optionally, as shown in figure 4, after step S40, the method also includes:
Step S41 controls the electric expansion valve with initial step number and runs the 6th duration.
Wherein, after control electric expansion valve runs the 6th duration with initial step number, electronic expansion is adjusted according to normal control
The aperture of valve.
When existing air conditioner low temperature heating starts, after the enabled instruction for receiving indoor unit transmission, the electronics of outdoor unit is swollen
Swollen valve usually according to setting step number operation, prevents system fluctuation, but do not utilize the control of electric expansion valve to the greatest extent, comes
System overheat degree is established, heat transfer effect is promoted.
In this way, the present embodiment, which after opening electric expansion valve, controls electric expansion valve, runs the 6th duration with initial step number,
The control of electric expansion valve can be utilized to the greatest extent, and Lai Jianli system overheat degree promotes heat transfer effect.
The overall flow figure of the air conditioner low temperature heating starting control method in the present embodiment can be obtained from above, as shown in Figure 5.
Optionally, the value range of the initial step number is 150pls-300pls.
Wherein, " pls " is the unit " step " of the aperture of electric expansion valve.
If the aperture of electric expansion valve is too small, easily cause low pressure too low, generates security risk；If electric expansion valve is opened
Spend big, it is excessive that refrigerant returns to compressor, can not establish system overheat degree, influence to exchange heat, cannot achieve quick heating.
In this way, the value range of the preferably initial step number of the present embodiment is 150pls-300pls, the value of initial step number compared with
It is good, system overheat degree both can be quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the 6th duration is 30s-120s.
The present embodiment also provides a kind of air conditioner low temperature heating starting control device, comprising:
Control unit, described control unit is for obtaining environment temperature；
Described control unit is also used to when the environment temperature is less than set temperature, sends the first starting to the blower of outdoor unit
Instruction is controlled the blower and starts and run with maximum speed；
After described control unit is also used to the first duration, the second enabled instruction is sent to compressor, controls the compressor start.
In general, air-conditioning is set by judging that environment temperature decides whether to carry out low-temperature heating starting when environment temperature is less than
When determining temperature, represents air-conditioning and be in low temperature environment, air-conditioning starts low-temperature heating starting.For example, it is optional when environment temperature lower than-
5 DEG C of space-times tune to open the starting of beginning low-temperature heating.
Wherein, the first enabled instruction and the second enabled instruction can be sent by air conditioner indoor unit, can also by remote control preparation or its
There is the device of starting control function to issue for he, and the present embodiment is with the first enabled instruction and the second enabled instruction by air conditioning chamber
Machine transmission is illustrated.The maximum speed is the limit speed that blower can reach, i.e., the highest that motor reliability allows turns
Speed.
In the present embodiment, when air conditioner low temperature heating starts, blower can be such that outdoor heat exchanger mentions prior to compressor start
The suction temperature of preceding preheating, compressor increases；Since temperature is higher, the freezing oil mass being dissolved in refrigerant is fewer, works as pressure in this way
When contracting machine starts, the suction temperature of compressor is high, helps to reduce the meltage that refrigeration oil is dissolved in refrigerant, and then the row of reduction
Oil mass.
When existing air conditioner low temperature heating starts, after the enabled instruction for receiving indoor unit transmission, blower can be according to noise
Tolerance rotation speed operation does not utilize the limit speed of blower to greatest extent, thus do not exchanged heat to greatest extent using blower, room
External heat exchanger temperature rises to the underspeed of the condition of high temperature.Wherein, the noise margin revolving speed is outdoor unit noise requirements institute
The maximum (top) speed of permission, the noise margin revolving speed are less than the maximum speed.In the present embodiment, start in air conditioner low temperature heating
When control the maximum speed that blower is allowed with motor reliability and run, blower is utilized to greatest extent and exchanges heat, improves
The rate of climb of outdoor heat exchanger temperature is, it can be achieved that the quick heating that air conditioner low temperature heating starts, quickly establishes system overheat degree.
In this way, the air conditioner low temperature heating starting control device of the present embodiment can be fast under the premise of guaranteeing that system oil drain quantity is low
The run-up erection system degree of superheat promotes heat transfer effect, ensure that the reliability of system, realizes the quick of air conditioner low temperature heating starting
Heating.
Optionally, after first duration, to compressor send the second enabled instruction, control the compressor start it
Afterwards, after described control unit is also used to the 5th duration, the electric expansion valve of outdoor unit is opened.
In the present embodiment, when air conditioner low temperature heating starts, electric expansion valve is later than compressor unlatching, works as compressor start
When, electric expansion valve still remains off state, due to there being certain refrigerant between electric expansion valve and compressor, at this moment may be used
So that the refrigerant in outdoor heat exchanger is sufficiently exchanged heat, promotes heat transfer effect.
In this way, the present embodiment can be when air conditioner low temperature heating starts, control electric expansion valve is later than compressor start, can make
Refrigerant in outdoor heat exchanger sufficiently exchanges heat, and promotes heat transfer effect, and heat exchanger can rise to the condition of high temperature with sufficiently fast speed,
Help to realize the quick heating of air conditioner low temperature heating starting.Optionally, the value range of the maximum speed is 900rpm-
1000rpm confirms according to the maximum speed that motor reliability allows." rpm " is the unit " rev/min " of rotation speed of fan.
Optionally, the value range of first duration is 10s-60s.
If the first duration is too small, the waiting time of compressor start is too short, unobvious to the pre-heat effect of compressor, it is difficult to
Effectively reduce oil drain quantity；If the first duration is too long, the waiting time of compressor start is too long, influences the speed of heat exchange temperature rising
Degree.
In this way, the value range of the present embodiment preferably the first duration is 10s-60s, the first duration value is more excellent, can both have
Effect reduces oil drain quantity, also can avoid influencing the speed that heat exchange temperature rises, it is ensured that realize the fast of air conditioner low temperature heating starting
Speed heating.
Optionally, when the environment temperature is less than set temperature, the first enabled instruction, control are sent to the blower of outdoor unit
After making the blower starting and running with maximum speed, after described control unit is also used to the second duration, the blower is controlled
With the operation of preset noise margin revolving speed.
When air conditioner low temperature heating starts, if control blower is run with maximum speed always, noise can be made excessively high, reduce and use
Family experience.The present embodiment is in the second duration period when blower just starts, and control blower is run with maximum speed, due to wind
When machine just starts, the noise consecutive variations of generation, the experience sense of noise level is insensitive, will not influence user experience；Blower with
After maximum speed runs a period of time, the noise that at this moment blower generates is reached a certain level, if blower is still transported with maximum speed
Row, can reduce user experience, and the present embodiment control blower after blower runs a period of time with maximum speed is turned with noise margin
Speed operation, can avoid lower noise user experience.
In this way, the present embodiment can both be exchanged heat using blower to greatest extent, helps to realize air conditioner low temperature heating and open
Dynamic quick heating, and can avoid lower noise user experience.
Optionally, the value range of second duration is 30s-120s.
If the second duration is too short, blower is too short with the time that maximum speed is run, and cannot achieve and accelerates heat exchanger heat exchange
Effect；If the second duration is too long, noise can be made excessively high, reduce user experience.
In this way, the value range of the present embodiment preferably the second duration is 30s-120s, it can both realize and accelerate heat exchanger heat exchange
Effect, in turn avoid reduce user experience.
Optionally, after first duration, to compressor send the second enabled instruction, control the compressor start it
Afterwards, described control unit is also used to control the compressor and is run with first frequency.
When existing air conditioner low temperature heating starts, after the second enabled instruction for receiving indoor unit transmission, compressor is usual
With fixed frequency, successively from low to high, step up, the speed for promoting slow heat transfer effect is slow.The present embodiment has just been opened in compressor
When dynamic, control compressor is run with first frequency, when inactive due to system, compressor inside cold Chuck Steak, therefore in short-term
Between inner compressor run with upper frequency, the speed of service of compressor is limited, and oil drain quantity is little, security risk will not be generated,
The frequency upgrading of compressor is controlled at this time to high value, is helped quickly to establish system overheat degree, is promoted heat transfer effect.
It is run in this way, the present embodiment controls compressor after compressor start with upper frequency, helps quickly to establish system
The system degree of superheat, promotes heat transfer effect, and then helps to realize the quick heating of air conditioner low temperature heating starting.
Optionally, it controls after the compressor runs with first frequency, after described control unit is also used to third duration,
The running frequency of the compressor is reduced to second frequency, when controlling the compressor with second frequency operation the 4th
It is long.
Wherein, first frequency is greater than second frequency.After compressor runs the 4th duration with second frequency, according to existing
The frequency of normal control adjusting compressor.
Air conditioner low temperature heating start when, if compressor is run with first frequency always, oil drain quantity can be made excessive, influence be
The reliability of system.The present embodiment after compressor runs third duration with first frequency control compressor with second frequency operation the
Four durations can reduce the running frequency of compressor when oil drain quantity increases to a certain extent, reduce oil drain quantity, to guarantee system
Reliability.
This sample embodiment can guarantee the reliability of system while realizing that cold-starting quickly heats.
Optionally, the value range of the first frequency is 35Hz-50Hz.
If first frequency is too small, system overheat degree can not be quickly established, and then the heat transfer effect of heat exchanger can not be promoted；If
First frequency is excessive, then the oil drain quantity that will lead to compressor is excessive, generates security risk.
In this way, the value range of the preferred first frequency of the present embodiment is 35Hz-50Hz, the value of first frequency is more excellent, i.e.,
System overheat degree can be quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the third duration is 30s-120s.
If third duration is too short, system overheat degree can not be quickly established, and then the heat transfer effect of heat exchanger can not be promoted；If
Third duration is excessive, then the oil drain quantity that will lead to compressor is excessive, generates security risk.
In this way, the value range of the preferred third duration of the present embodiment is 30s-120s, the value of third duration is more excellent, both may be used
System overheat degree is quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the second frequency is 20Hz-34Hz.
If second frequency is too small, heat transfer effect can be reduced, influences the quick heating of system；If second frequency is excessive,
The oil extraction rate of compressor can not be effectively reduced.
In this way, the value range of the preferred second frequency of the present embodiment is 20Hz-34Hz, the value of second frequency is more excellent, can
The oil extraction rate of compressor is effectively reduced under the premise of not influencing system and quickly heating, is conducive to the reliability of raising system.
Optionally, the value range of the 4th duration is 30s-120s.
If the 4th duration is too short, the oil extraction rate of compressor can not be effectively reduced；If the 4th duration is too long, it can reduce and change
Thermal effect influences the quick heating of system.
In this way, the value range of the present embodiment preferably the 4th duration is 30s-120s, the value of the 4th duration is more excellent, can be
The oil extraction rate that compressor is effectively reduced under the premise of system quickly heats is not influenced, is conducive to the reliability of raising system.
Optionally, the value range of the 5th duration is 10s-60s.
If the 5th duration is too small, the refrigerant in outdoor heat exchanger does not exchange heat sufficiently, it is difficult to play and accelerate on heat exchange temperature
The effect of lifting speed；If the 5th duration is too long, the waiting time that electric expansion valve is opened is too long, easily causes the low pressure mistake of system
It is low, generate security risk.
In this way, the value range of the present embodiment preferably the 5th duration is 10s-60s, the 5th duration value is more excellent, can
Under the premise of realizing the quick heating of air conditioner low temperature heating starting, avoid generating security risk.
Optionally, after the 5th duration, after the electric expansion valve for opening outdoor unit, described control unit is also used to control
It makes the electric expansion valve and the 6th duration is run with initial step number.
Wherein, after control electric expansion valve runs the 6th duration with initial step number, electronic expansion is adjusted according to normal control
The aperture of valve.
When existing air conditioner low temperature heating starts, after the enabled instruction for receiving indoor unit transmission, the electronics of outdoor unit is swollen
Swollen valve usually according to setting step number operation, prevents system fluctuation, but do not utilize the control of electric expansion valve to the greatest extent, comes
System overheat degree is established, heat transfer effect is promoted.
In this way, the present embodiment, which after opening electric expansion valve, controls electric expansion valve, runs the 6th duration with initial step number,
The control of electric expansion valve can be utilized to the greatest extent, and Lai Jianli system overheat degree promotes heat transfer effect.
Optionally, the value range of the initial step number is 150pls-300pls.
Wherein, " pls " is the unit " step " of the aperture of electric expansion valve.
If the aperture of electric expansion valve is too small, easily cause low pressure too low, generates security risk；If electric expansion valve is opened
Spend big, it is excessive that refrigerant returns to compressor, can not establish system overheat degree, influence to exchange heat, cannot achieve quick heating.
In this way, the value range of the preferably initial step number of the present embodiment is 150pls-300pls, the value of initial step number compared with
It is good, system overheat degree both can be quickly established, heat transfer effect is promoted, system is also can avoid and generates security risk.
Optionally, the value range of the 6th duration is 30s-120s.
The present embodiment also provides a kind of air conditioner, computer readable storage medium and place including being stored with computer program
Device is managed, when the computer program is read and run by the processor, realizes any of the above-described kind of air conditioner low temperature heating starting control
Method processed.
In this way, the air conditioner of the present embodiment can quickly establish system overheat degree under the premise of guaranteeing that system oil drain quantity is low,
Heat transfer effect is promoted, ensure that the reliability of system, realizes the quick heating of air conditioner low temperature heating starting.
The present embodiment also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has calculating
Machine program when the computer program is read out by the processor and runs, realizes any of the above-described kind of air conditioner low temperature heating starting control
Method.
In this way, the computer readable storage medium of the present embodiment can quickly be established under the premise of guaranteeing that system oil drain quantity is low
System overheat degree promotes heat transfer effect, ensure that the reliability of system, realizes the quick heating of air conditioner low temperature heating starting.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of air conditioner low temperature heating starts control method characterized by comprising
Obtain environment temperature；
When the environment temperature is less than set temperature, the first enabled instruction is sent to the blower of outdoor unit, controls the blower
Start and is run with maximum speed；
After first duration, the second enabled instruction is sent to compressor, controls the compressor start；
After first duration, the second enabled instruction is sent to compressor, after controlling the compressor start, further includes:
After 5th duration, the electric expansion valve of outdoor unit is opened.
2. air conditioner low temperature heating according to claim 1 starts control method, which is characterized in that small in the environment temperature
When set temperature, the first enabled instruction is sent to the blower of outdoor unit, the blower is controlled and starts and run with maximum speed
Later, further includes:
After second duration, controls the blower and run with preset noise margin revolving speed.
3. air conditioner low temperature heating according to claim 1 starts control method, which is characterized in that after first duration,
The second enabled instruction is sent to compressor, after controlling the compressor start, further includes:
The compressor is controlled to run with first frequency.
4. air conditioner low temperature heating according to claim 3 starts control method, which is characterized in that control the compressor with
After first frequency operation, further includes:
After third duration, the running frequency of the compressor is reduced to second frequency, controls the compressor with described second
Frequency runs the 4th duration, and the second frequency is less than the first frequency.
5. air conditioner low temperature heating according to any one of claims 1-4 starts control method, which is characterized in that the described 5th
After duration, after the electric expansion valve for opening outdoor unit, further includes:
It controls the electric expansion valve and the 6th duration is run with initial step number.
6. air conditioner low temperature heating according to claim 4 starts control method, which is characterized in that the first frequency takes
Value range is 35Hz-50Hz；
Or, the value range of the second frequency is 20Hz-34Hz.
7. air conditioner low temperature heating according to any one of claims 1-4 starts control method, which is characterized in that described first
The value range of duration is 10s-60s.
8. a kind of air conditioner low temperature heating starts control device characterized by comprising
Control unit, described control unit is for obtaining environment temperature；
Described control unit is also used to when the environment temperature is less than set temperature, sends the first starting to the blower of outdoor unit
Instruction is controlled the blower and starts and run with maximum speed；
After described control unit is also used to the first duration, the second enabled instruction is sent to compressor, controls the compressor start；
After first duration, the second enabled instruction is sent to compressor, after controlling the compressor start, the control is single
After member is also used to the 5th duration, the electric expansion valve of outdoor unit is opened.
9. a kind of air conditioner, which is characterized in that computer readable storage medium and processor including being stored with computer program,
When the computer program is read and run by the processor, the method according to claim 1 to 7 is realized.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence when the computer program is read out by the processor and runs, realizes the method according to claim 1 to 7.
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| CN201910920409.8A CN110425700B (en) | 2019-09-27 | 2019-09-27 | Air conditioner low-temperature heating starting control method and device and air conditioner |
| PCT/CN2020/078220 WO2021056973A1 (en) | 2019-09-27 | 2020-03-06 | Method and device for controlling low-temperature heating startup of air conditioner, air conditioner, and storage medium |
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| CN201910920409.8A CN110425700B (en) | 2019-09-27 | 2019-09-27 | Air conditioner low-temperature heating starting control method and device and air conditioner |
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Cited By (2)
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| CN111765606A (en) * | 2020-06-10 | 2020-10-13 | 海信（山东）空调有限公司 | Method for controlling low-temperature heating start of air conditioner, air conditioner and storage medium |
| WO2021056973A1 (en) * | 2019-09-27 | 2021-04-01 | 宁波奥克斯电气股份有限公司 | Method and device for controlling low-temperature heating startup of air conditioner, air conditioner, and storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110975A (en) * | 2021-11-11 | 2022-03-01 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
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| CN110425700B (en) | 2020-04-24 |
| WO2021056973A1 (en) | 2021-04-01 |
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