CN113959079B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN113959079B CN113959079B CN202111162571.1A CN202111162571A CN113959079B CN 113959079 B CN113959079 B CN 113959079B CN 202111162571 A CN202111162571 A CN 202111162571A CN 113959079 B CN113959079 B CN 113959079B
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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
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner, wherein the control method comprises the following steps: after receiving a shutdown instruction, the air conditioner controls the compressor to stop; adjusting the opening degree of a throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach a balanced state; acquiring the current outdoor temperature, adjusting the opening of the throttling device according to the acquired current outdoor temperature, and controlling the air conditioner to shut down when the opening of the throttling device reaches a target opening corresponding to the current outdoor temperature; and after the air conditioner is restarted, acquiring a current starting time parameter and a last time shutdown time parameter, and determining whether to control the opening of the throttling device adjusted when the air conditioner is shut down last time to start operation or not according to the acquired current starting time parameter and the last time shutdown time parameter. The air conditioner control method and the air conditioner can quickly reach a stable operation state after the air conditioner is started, and time required by a system to reach stability is shortened.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner.
Background
The conventional air conditioner can meet the refrigerating and heating requirements of users, but along with the improvement of user experience requirements, the users have certain requirements on the refrigerating and heating speeds of the air conditioner, so that the conventional control mode needs to be adjusted and optimized to reduce the waiting time after the air conditioner is started.
The air conditioner comprises a throttling device, the opening degree of the throttling device can be adjusted according to a set program, the opening degree is adjusted by adjusting the flow rate of a refrigerant in a pipeline, and the control of the indoor temperature is realized. The conventional throttling device is controlled in a mode that after the external machine is electrified, the throttling device performs resetting action, and after the resetting is completed, the opening degree is adjusted to be proper according to actual working conditions. The existing control mode is long in time consumption, and the air conditioner is difficult to quickly reach a stable operation state after being started, so that the control mode of the throttling device needs to be optimized.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an air conditioner control method and an air conditioner, which can quickly reach a stable running state after the air conditioner is started.
In order to solve the above technical problem, a first object of the present invention is to provide a control method of an air conditioner, the control method including:
after receiving a shutdown instruction, the air conditioner controls the compressor to stop;
adjusting the opening degree of a throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach a balanced state;
acquiring the current outdoor temperature, adjusting the opening of a throttling device according to the acquired current outdoor temperature, and controlling the air conditioner to shut down when the opening of the throttling device reaches a target opening corresponding to the current outdoor temperature;
and after the air conditioner is restarted, acquiring a current starting time parameter and a last time shutdown time parameter, and determining whether to control the opening of the throttling device adjusted when the air conditioner is shut down last time to start operation or not according to the acquired current starting time parameter and the last time shutdown time parameter.
Further optionally, the adjusting the opening degree of the throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach an equilibrium state comprises:
obtaining the temperature T of the inner tube in real time Inner tube And outer tube temperature T Outer tube Calculating the temperature T of the inner tube Inner tube And outer tube temperature T Outer tube Absolute value of the difference of (1) | T Inner pipe -T Outer tube |；
Judging whether | T is satisfied Inner pipe -T Outer tube Is less than or equal to the firstSetting temperature difference, if the temperature difference is met, judging that the temperature difference reaches a balance state, and keeping the current opening degree of the throttling device;
if not, judging that the balance state is not reached, and continuously adjusting the opening of the throttling device until the balance state is reached.
Further optionally, the throttling device is controlled to reset after the pressures of the indoor heat exchanger side and the outdoor heat exchanger side of the throttling device reach an equilibrium state.
Further optionally, the adjusting the opening degree of the throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach an equilibrium state comprises:
and controlling the throttling device to execute a reset action, and maintaining the set time after the reset action is finished.
Further optionally, the operation state of the outdoor fan is maintained during the process that the opening degree of the throttling device is adjusted to enable the pressure of the throttling device on the indoor heat exchanger side and the pressure of the throttling device on the outdoor heat exchanger side to reach the balanced state, and the outdoor fan is controlled to stop operating after the opening degree of the throttling device reaches the target opening degree corresponding to the current outdoor temperature.
Further optionally, before the current startup time parameter and the last shutdown time parameter are obtained, whether the last shutdown is a normal shutdown is further judged, and whether the current startup time parameter and the last shutdown time parameter are obtained is determined according to a judgment result.
Further optionally, the determining whether the last shutdown is a normal shutdown, and determining whether to acquire the current startup time parameter and the last shutdown time parameter according to the determination result includes
If the last shutdown is a normal shutdown, acquiring a current startup time parameter and a last shutdown time parameter, and determining whether to control the opening starting operation of the throttling device adjusted by the air conditioner in the last shutdown according to the acquired current startup time parameter and the last shutdown time parameter;
and if the last shutdown is abnormal, adjusting the opening of the throttling device to a target opening corresponding to the outdoor temperature during the current startup.
Further optionally, the obtaining of the current startup time parameter and the last shutdown time parameter includes obtaining an outdoor temperature value T1 when the startup is performed this time and obtaining an outdoor temperature value T0 when the shutdown is performed last time;
or, the current startup time t1 and the last shutdown time t0 are acquired.
Further optionally, the determining, according to the obtained parameter of the time of starting up the air conditioner and the parameter of the time of stopping the air conditioner last time, whether to control the opening degree of the throttling device adjusted by the air conditioner last time of stopping the air conditioner to start up the air conditioner or not includes
Acquiring an outdoor temperature value T1 when the computer is started and an outdoor temperature T0 when the computer is shut down last time;
calculating an absolute value | T1-T0| of a difference value between the outdoor temperature T1 when the computer is started and the outdoor temperature T0 when the computer is shut down last time;
judging whether the following conditions are met: if the temperature difference is less than or equal to the second set temperature difference, | T1-T0|, controlling the opening of the throttling device adjusted when the air conditioner is shut down for the last time to start operation;
if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
Further optionally, the determining, according to the obtained parameter of the time when the air conditioner is turned on this time and the parameter of the time when the air conditioner is turned off last time, whether to control the opening of the throttling device adjusted when the air conditioner is turned off last time to start operation includes
Obtaining the starting time t1 and the last shutdown time t0;
calculating the absolute value of the difference value between the current startup time t1 and the last shutdown time t 0: l t1-t0 l;
judging whether the following conditions are met: if the opening degree of the throttling device adjusted when the air conditioner is shut down last time is controlled to start running, the l t1-t0 l is less than or equal to the set time length;
if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
Further optionally, the adjusting the opening degree of the throttling device to the target opening degree corresponding to the outdoor temperature at the time of starting the engine includes
And firstly, controlling the throttle device to reset, and then adjusting the opening of the throttle device to a target opening corresponding to the outdoor temperature when the machine is started.
Further optionally, the adjusting the opening degree of the throttling device to the target opening degree corresponding to the outdoor temperature at the time of starting the engine includes
And adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature at the starting time on the basis of the opening degree of the throttling device adjusted at the last starting time.
A second object of the invention proposes a control device comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions which, when executed by the one or more processors, are adapted to implement the method of any of the above.
A third object of the invention proposes a non-transitory computer-readable storage medium having stored thereon program instructions for implementing the method according to any one of the above when the program instructions are executed by one or more processors.
A fourth object of the present invention is to provide an air conditioner, which employs any one of the methods described above, or includes the control device described above, or has the non-transitory computer-readable storage medium described above.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention provides an air conditioner control method and an air conditioner, wherein the waiting time before starting is reduced by adjusting the reset time sequence of a throttling device, and the throttling device is shut down after adjusting the pressure balance of the inner side and the outer side of the throttling device after receiving a shutdown signal and then adjusting the opening according to the current working condition. After the air conditioner is started again, whether the opening degree of the throttling device needs to be adjusted or not is determined according to the last-time shutdown time parameter and the current-time startup time parameter, the stable operation state can be quickly achieved after the air conditioner is started, and the time required by the system to achieve stability is shortened.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control logic diagram of an embodiment of the present invention.
FIG. 2: is a flow chart of a first embodiment of the present invention.
FIG. 3: is a flowchart of a second embodiment of the present invention.
FIG. 4: is a flow chart of a third embodiment of the present invention.
FIG. 5: is a flow chart of a fourth embodiment of the present invention.
FIG. 6: is a flow chart of a fifth embodiment of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
After the existing air conditioner is started, the throttling device performs resetting action, and the opening degree is adjusted to be proper according to actual working conditions after the resetting is completed. The existing control mode is long in time consumption, and the air conditioner is difficult to quickly reach a stable operation state after being started, so that the control mode of the throttling device needs to be optimized. Therefore, the present embodiment proposes a control method of an air conditioner, such as the control logic diagram shown in fig. 1, the control method includes the following steps:
after receiving a shutdown instruction, the air conditioner controls the compressor to shut down;
adjusting the opening degree of a throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach a balanced state;
acquiring the current outdoor temperature, adjusting the opening of the throttling device according to the acquired current outdoor temperature, and controlling the air conditioner to shut down when the opening of the throttling device reaches a target opening corresponding to the current outdoor temperature;
and after the air conditioner is restarted, acquiring a current starting time parameter and a last time shutdown time parameter, and determining whether to control the opening of the throttling device adjusted when the air conditioner is shut down last time to start operation or not according to the acquired current starting time parameter and the last time shutdown time parameter.
In the embodiment, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the current ambient temperature after the pressure inside and outside the throttling device is adjusted to the balanced state when the system is shut down, and the system is directly operated by the opening degree adjusted when the system is shut down after the judgment condition is met when the system is started next time, so that the waiting time before starting the system can be reduced, and the whole system can quickly reach the stable operation state. The reason why the embodiment adjusts the pressures inside and outside the throttle device to the equilibrium state is that: after shutdown, the high-pressure side maintains higher temperature and pressure, the opening degree adjustment is executed after the throttling device is reset, the opening degree is reduced, the temperature and the pressure of the high-pressure side are still higher, if a user starts the machine in a short time, the risk of high-pressure overshoot is likely to exist, and therefore the pressure balance of the inner side and the outer side needs to be carried out. The throttling device of the present embodiment is optionally an electronic expansion valve.
In this embodiment, a preset corresponding relationship between the outdoor temperature and the opening degree of the throttling device is stored in the air conditioner controller, after the outdoor temperature is obtained, the opening degree of the throttling device corresponding to the currently obtained outdoor temperature in the preset corresponding relationship may be determined according to a table look-up manner, and then the throttling device is controlled to adjust to a target opening degree corresponding to the current outdoor environment.
Further alternatively, one embodiment of adjusting the opening degree of the throttling device to make the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side reach an equilibrium state is as follows:
obtaining the temperature T of the inner tube in real time Inner pipe And outer tube temperature T Outer tube Calculating the temperature T of the inner tube Inner tube And outer tube temperature T Outer tube Absolute value of the difference of (1) | T Inner pipe -T Outer tube |；
Judging whether | T is satisfied Inner pipe -T Outer tube If the absolute value is less than or equal to the first set temperature difference, judging that the balance state is achieved, and keeping the current opening degree of the throttling device; if not, judging that the balance state is not reached, and continuously adjusting the opening of the throttling device until the balance state is reached.
In this example according to T Inner pipe And T Outer tube The temperature difference of the two sides of the throttling device is judged to be in pressure balance at T Inner pipe And T Outer tube When the temperature difference is small, the pressure difference between the inner side and the outer side of the throttling device is small, and the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side reach a balanced state; when at T Inner tube And T Outer tube The difference in temperature of (2) is large, which means that the pressure difference between the inner side and the outer side of the throttling device is large, the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side do not reach the equilibrium state, and the opening degree of the throttling device needs to be continuously adjusted to balance the pressures on the two sides. In this embodiment, the specific value of the first set temperature difference is related to the actual operating condition, and different value ranges can be set according to the specific operating condition.
Further optionally, after the pressures of the indoor heat exchanger side and the outdoor heat exchanger side of the throttling device reach an equilibrium state, the throttling device is controlled to reset, so as to prepare for the next start of the air conditioner.
As shown in fig. 2, the control method includes the following steps:
s101, receiving a shutdown signal. The air conditioner receives a shutdown signal, such as shutdown of a remote controller;
and S102, shutting down the compressor. After a shutdown signal is received, the compressor is shut down, and the rotating speed of the compressor is gradually reduced until the compressor stops;
s103, adjusting the opening of the electronic expansion valve, balancing the internal and external pressures by adjusting the opening of the electronic expansion valve to ensure that the refrigerant in the pipeline quickly reaches a stable state, and keeping the operation of the external fan in the process;
s104, judging whether the inner side pressure and the outer side pressure reach a balanced state or not through the temperature difference value of the pipe temperature and the environment temperature, and if the pressure is | T |, judging whether the inner side pressure and the outer side pressure reach the balanced state Inner tube -T Outer tube D, indicating that the pressure inside and outside the electronic expansion valve is balanced when the pressure is less than or equal to delta t1, and executing the next action; if T Inner pipe -T Outer tube If is greater than delta t1, returning to S103; t is Inner pipe For the pipe temperature, T, of an indoor heat exchanger Outer tube The tube temperature of the outdoor heat exchanger.
S105, the electronic expansion valve executes a reset action;
s106, acquiring the outer ring temperature T0 at the moment, detecting the outer ring temperature at the moment by the outer ring temperature sensing bulb and memorizing, or directly acquiring the outer ring temperature T0 when a shutdown signal is received, wherein the step of memorizing the outer ring temperature at the moment is to call the outer ring temperature when the air conditioner is shut down last time when the air conditioner is started next time;
s107, adjusting the electronic expansion valve to the opening degree under the current working condition, namely the target opening degree under the T0 working condition;
and S108, powering off the machine.
Further alternatively, another embodiment of adjusting the opening degree of the throttling device to make the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side reach an equilibrium state includes:
and controlling the throttling device to execute a reset action, and maintaining the set time after the reset action is finished.
In this embodiment, since the throttle device is opened to the maximum opening degree when the reset operation is performed, the pressures of the indoor heat exchanger and the outdoor heat exchanger gradually tend to be balanced, and the pressure is substantially in a balanced state after the set time is maintained.
The following is a second specific implementation manner of this embodiment, and as shown in the control flowchart shown in fig. 3, the control method includes the following steps:
s201, receiving a stop signal. The air conditioner receives a shutdown signal, such as shutdown of a remote controller;
and S202, stopping the compressor. After a stop signal is received, the compressor is shut down, and the rotating speed of the compressor is gradually reduced until the compressor stops;
s203, obtaining the outer ring temperature T0 at the moment, detecting the outer ring temperature at the moment by the outer ring temperature sensing bulb and memorizing the outer ring temperature for calling when the computer is started next time.
S204, the electronic expansion valve executes a reset action;
s205, after the set time T, adjusting the electronic expansion valve to the opening degree under the current working condition, namely the target opening degree under the T0 working condition;
and S206, stopping the power supply.
A further optional scheme is that the operation state of the outdoor fan is maintained in the process of adjusting the opening degree of the throttling device to enable the pressures of the throttling device on the indoor heat exchanger side and the outdoor heat exchanger side to reach the balanced state, so that the cooling speed of the refrigerant on the high-pressure side of the throttling device can be increased, and the outdoor fan is controlled to stop operating after the opening degree of the throttling device reaches the target opening degree corresponding to the current outdoor temperature.
Further optionally, before the current startup time parameter and the last shutdown time parameter are obtained, whether the last shutdown is a normal shutdown is further judged, and whether the current startup time parameter and the last shutdown time parameter are obtained is determined according to a judgment result.
In this embodiment, whether normal shutdown will affect the adjustment process of the throttling device after shutdown, only when a normal shutdown signal is received, the opening of the throttling device is adjusted to the target opening corresponding to the external temperature before shutdown, and the air conditioner is directly shutdown under abnormal shutdown conditions (such as power failure, protection shutdown, and the like), so that the throttling device cannot be adjusted, and the opening at this time may not correspond to the target opening of the external temperature. Therefore, it is necessary to determine whether the last shutdown is a normal shutdown before the current startup time parameter and the last shutdown time parameter are acquired.
Further optionally, judging whether the previous shutdown is a normal shutdown, and determining whether to acquire the current startup time parameter and the previous shutdown time parameter according to a judgment result, including: if the last shutdown is a normal shutdown, acquiring a current startup time parameter and a last shutdown time parameter, and determining whether to control the opening starting operation of the throttling device adjusted by the air conditioner in the last shutdown according to the acquired current startup time parameter and the last shutdown time parameter; and if the previous shutdown is abnormal, adjusting the opening of the throttling device to a target opening corresponding to the outdoor temperature during the current startup.
In this embodiment, if the opening of the throttling device is adjusted to the target opening corresponding to the outside temperature for the last normal shutdown, the subsequent determination may be performed. If the opening degree of the throttling device is not adjusted to the target opening degree corresponding to the outside temperature for the abnormal shutdown at the last time, the opening degree of the throttling device needs to be directly adjusted.
Further optionally, the method includes acquiring a current startup time parameter and a last shutdown time parameter, including acquiring an outdoor temperature value T1 when the computer is started up this time and acquiring an outdoor temperature value T0 when the computer is shutdown last time; or, the current startup time t1 and the last shutdown time t0 are acquired.
Further optionally, an embodiment of determining whether to control the opening degree of the throttling device adjusted by the air conditioner when the air conditioner is shut down last time according to the obtained parameter of the starting time of this time and the parameter of the shutdown last time is as follows:
acquiring an outdoor temperature value T1 when the computer is started and an outdoor temperature T0 when the computer is shut down last time;
calculating an absolute value | T1-T0| of a difference value between the outdoor temperature T1 when the computer is started and the outdoor temperature T0 when the computer is shut down last time;
judging whether the following conditions are met: if the temperature difference is less than or equal to the second set temperature difference, | T1-T0|, controlling the opening of the throttling device adjusted when the air conditioner is shut down for the last time to start operation; if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
In this embodiment, whether the outdoor temperature at the time of starting up the computer is close to the outdoor temperature at the time of shutting down the computer last time is determined according to the temperature difference between the time of starting up the computer and the time of shutting down the computer last time. If the temperature difference is small, the temperature difference when the air conditioner is started is small or basically the same as the temperature difference when the air conditioner is shut down last time, and the air conditioner is started to operate directly according to the opening of the throttling device adjusted when the air conditioner is shut down last time, so that the stable state of the air conditioner can be quickly reached. If the temperature difference is large, it is indicated that the difference between the temperature at the time of starting the computer and the temperature at the time of last shutdown is large, and the opening of the throttle valve adjusted at the time of last shutdown cannot be directly adopted, and the opening of the throttle valve needs to be readjusted to be consistent with the target opening of the current outdoor environment. In this embodiment, the second set temperature difference may be optionally 3 ℃, and may also be adjusted according to the actual environment.
The following is a third specific implementation manner of this embodiment, and as shown in fig. 4, the method includes the following steps:
s301, starting up, wherein after a starting-up signal of the air conditioner is received, the internal unit supplies power to the external unit;
s302, judging whether the previous shutdown is normal, if so, executing S303, and if not, executing S304;
s303, acquiring the previous outdoor temperature value T1, and entering S304;
s304, after the electronic expansion valve is reset, adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature during the starting;
s305, judging the difference value between the outdoor temperature T1 at the moment and the outdoor temperature T0 at the last shutdown, and executing S306 if the difference value | T1-T0| is less than or equal to δ T; if the | T1-T0| is more than δ T, executing S304;
and S306, directly operating according to the opening degree adjusted during shutdown.
The following is a fourth specific implementation manner of this embodiment, and a difference between this specific implementation manner and the third specific implementation manner is that the determination of whether the last shutdown is normal is cancelled, as shown in fig. 5, the method includes the following steps:
s401, starting up, wherein after a starting-up signal of the air conditioner is received, the internal unit supplies power to the external unit;
s402, acquiring a previous outdoor temperature value T1;
s403, judging the difference value between the outdoor temperature T1 and the outdoor temperature T0 during the last shutdown, and executing S405 if the difference value | T1-T0| is less than or equal to δ T; if the absolute value of T1-T0 is larger than delta T, adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature during the starting;
and S404, directly operating according to the opening degree adjusted during shutdown.
And S405, adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature during the starting.
Further optionally, another embodiment that determines whether to control the opening degree of the throttling device adjusted by the air conditioner when the air conditioner is shut down last time according to the obtained parameter of the starting time of this time and the parameter of the shutdown time last time is as follows:
obtaining the starting time t1 and the last shutdown time t0;
calculating the absolute value of the difference value between the current startup time t1 and the last shutdown time t 0: l t1-t0 l;
judging whether the following conditions are met: if the opening degree of the throttling device adjusted when the air conditioner is shut down last time is controlled to start operation, if the opening degree t1-t0 is less than or equal to the set time length; if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
In this embodiment, whether the outdoor temperature at the time of starting up the air conditioner is close to the outdoor temperature at the time of shutting down the air conditioner at the last time is determined by calculating the difference between the time of starting up the air conditioner at this time and the time of shutting down the air conditioner at the last time, and if the difference between the time of starting up the air conditioner at this time and the time of shutting down the air conditioner at the last time is small, it is indicated that the difference between the outdoor temperature at the time of starting up the air conditioner at this time and the outdoor temperature at the time of shutting down the air conditioner at the last time is not large, and the air conditioner is started to operate directly according to the opening of the throttling device adjusted at the time of shutting down the air conditioner at the last time, so that the stable state of the air conditioner can be quickly reached. If the difference between the current starting time and the last shutdown time is large, the outdoor temperature during the current starting and the outdoor temperature during the last shutdown are likely to change, the opening of the throttle valve adjusted during the last shutdown cannot be directly adopted, and the opening of the throttle valve needs to be readjusted to be consistent with the target opening of the current outdoor environment. In this embodiment, the set time duration may be selected to be 2h, and may also be adjusted according to the actual environment.
The following is a fifth specific implementation manner of this embodiment, as shown in fig. 6, including the following steps:
s501, starting up
S502, judging whether the last shutdown is normal shutdown or not, if so, executing the step S503, otherwise, executing the step S505.
S503, judging the time interval | t1-t0| between the last shutdown time t0 and the next startup time t1, if the | t1-t0| is less than or equal to t0, defaulting that the time interval of the two times of use of the air conditioner is not long, and executing S504, otherwise executing S505.
And S504, operating according to the current opening degree.
And S505, adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature during the current starting.
Further alternatively, one embodiment of adjusting the opening degree of the throttle device to the target opening degree corresponding to the outdoor temperature at the time of the current startup is as follows: and firstly, controlling the throttle device to reset, and then adjusting the opening of the throttle device to a target opening corresponding to the outdoor temperature during the starting. Another possible implementation is: and adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature at the starting time on the basis of the opening degree of the throttling device adjusted at the last starting time.
Further optionally, the adjusting the opening degree of the throttling device to the target opening degree corresponding to the outdoor temperature at the time of starting the engine includes
And adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature at the starting time on the basis of the opening degree of the throttling device adjusted at the last starting time.
The present embodiments also propose a control device comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, the one or more processors being configured to implement the method of any one of the above when the program instructions are executed by the one or more processors.
The present embodiments also propose a non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are used to implement a method according to any of the above.
The embodiment also provides an air conditioner which adopts the method of any one of the above, or comprises the control device or is provided with the non-transitory computer readable storage medium.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A control method of an air conditioner, characterized in that the control method comprises:
after receiving a shutdown instruction, the air conditioner controls the compressor to stop;
the method for adjusting the opening degree of the throttling device to enable the pressure of the throttling device on the indoor heat exchanger side and the pressure of the throttling device on the outdoor heat exchanger side to reach a balanced state comprises the following steps: obtaining the temperature T of the inner tube in real time Inner pipe And outer tube temperature T Outer tube Calculating the temperature T of the inner tube Inner pipe And outer tube temperature T Outer tube Absolute value of the difference of (1) | T Inner pipe -T Outer tube L, |; judging whether | T is satisfied Inner pipe -T Outer tube If the absolute value is less than or equal to the first set temperature difference, if the absolute value is met,judging that a balance state is achieved, and keeping the current opening degree of the throttling device; if not, judging that the balance state is not reached, and continuously adjusting the opening of the throttling device until the balance state is reached;
after the pressure inside and outside the throttling device is adjusted to be in a balanced state, the current outdoor temperature is obtained, the opening degree of the throttling device is adjusted according to the obtained current outdoor temperature, and the air conditioner is controlled to be shut down after the opening degree of the throttling device reaches the target opening degree corresponding to the current outdoor temperature;
when the air conditioner is restarted, acquiring a current starting time parameter and a last time shutdown time parameter, and determining whether to control the opening starting operation of the throttling device adjusted when the air conditioner is shut down last time according to the acquired current starting time parameter and the last time shutdown time parameter;
wherein: and adjusting the opening degree of the throttling device to enable the throttling device to maintain the running state of the outdoor fan in the process that the pressures of the indoor heat exchanger side and the outdoor heat exchanger side reach a balanced state, and controlling the outdoor fan to stop running after the opening degree of the throttling device reaches a target opening degree corresponding to the current outdoor temperature.
2. The control method of an air conditioner according to claim 1, wherein the throttle device is controlled to be reset after pressures on an indoor heat exchanger side and an outdoor heat exchanger side of the throttle device reach an equilibrium state.
3. The control method of an air conditioner according to claim 1, wherein said adjusting the opening degree of the throttle device so that the pressures of the throttle device on the indoor heat exchanger side and the outdoor heat exchanger side reach an equilibrium state comprises:
and controlling the throttling device to execute a reset action, and maintaining the set time after the reset action is finished.
4. The method of claim 1, wherein before the current startup time parameter and the last shutdown time parameter are obtained, whether the last shutdown is a normal shutdown is determined, and whether the current startup time parameter and the last shutdown time parameter are obtained is determined according to a determination result.
5. The method according to claim 4, wherein said determining whether the last shutdown is a normal shutdown, and determining whether to obtain the current startup time parameter and the last shutdown time parameter according to the determination result comprises
If the last shutdown is a normal shutdown, acquiring a current startup time parameter and a last shutdown time parameter, and determining whether to control the opening starting operation of the throttling device adjusted by the air conditioner in the last shutdown according to the acquired current startup time parameter and the last shutdown time parameter;
and if the previous shutdown is abnormal, adjusting the opening of the throttling device to a target opening corresponding to the outdoor temperature during the current startup.
6. The method as claimed in claim 5, wherein the obtaining of the current power-on time parameter and the last power-off time parameter comprises
Acquiring an outdoor temperature value T1 when the computer is started and an outdoor temperature value T0 when the computer is shut down last time;
or, the current startup time t1 and the last shutdown time t0 are acquired.
7. The method for controlling an air conditioner according to claim 6, wherein the determining whether to control the opening degree of the throttling device adjusted when the air conditioner is shut down last time according to the acquired parameter of the time of starting up the air conditioner and the parameter of the time of shutting down the air conditioner last time comprises the steps of
Acquiring an outdoor temperature value T1 during the current startup and an outdoor temperature T0 during the last shutdown;
calculating an absolute value | T1-T0| of a difference value between the outdoor temperature T1 when the computer is started and the outdoor temperature T0 when the computer is shut down last time;
judging whether the following conditions are met: if the temperature difference is less than or equal to the second set temperature difference, | T1-T0|, controlling the opening of the throttling device adjusted when the air conditioner is shut down for the last time to start operation;
if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
8. The method for controlling an air conditioner according to claim 7, wherein the determining whether to control the opening degree of the throttling device adjusted when the air conditioner is shut down last time according to the acquired parameter of the time of starting up the air conditioner this time and the parameter of the time of shutting down the air conditioner last time comprises
Obtaining the starting time t1 and the last shutdown time t0;
calculating the absolute value of the difference value between the current startup time t1 and the last shutdown time t 0: l t1-t0 l;
judging whether the following conditions are met: if the opening degree of the throttling device adjusted when the air conditioner is shut down last time is controlled to start operation, if the opening degree t1-t0 is less than or equal to the set time length;
if the opening degree of the throttling device does not meet the preset opening degree, the opening degree of the throttling device is adjusted to the target opening degree corresponding to the outdoor temperature during the starting.
9. The method of any one of claims 5 to 8, wherein the adjusting the opening degree of the throttle device to a target opening degree corresponding to the outdoor temperature at the present time of the startup includes
And firstly, controlling the throttle device to reset, and then adjusting the opening of the throttle device to a target opening corresponding to the outdoor temperature during the starting.
10. The method of any one of claims 5 to 8, wherein the adjusting the opening degree of the throttle device to a target opening degree corresponding to the outdoor temperature at the present time of the startup includes
And adjusting the opening degree of the throttling device to a target opening degree corresponding to the outdoor temperature at the starting time on the basis of the opening degree of the throttling device adjusted at the last starting time.
11. A control apparatus comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions which, when executed by the one or more processors, are operable to implement the method of any one of claims 1-10.
12. A non-transitory computer-readable storage medium having stored thereon program instructions which, when executed by one or more processors, are to implement the method of any one of claims 1-10.
13. An air conditioner, characterized in that it employs the method of any one of claims 1-10, or comprises the control device of claim 11, or has a non-transitory computer-readable storage medium according to claim 12.
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| CN105783350B (en) * | 2014-12-16 | 2018-12-18 | 青岛海尔空调器有限总公司 | A kind of control method for electronic expansion valve of air conditioner and device |
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| CN112524773B (en) * | 2020-12-09 | 2022-03-18 | 珠海格力电器股份有限公司 | Method and device for determining opening of electronic expansion valve |
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