CN113932411A - Control method for air conditioner and air conditioner - Google Patents
Control method for air conditioner and air conditioner Download PDFInfo
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- CN113932411A CN113932411A CN202111141878.3A CN202111141878A CN113932411A CN 113932411 A CN113932411 A CN 113932411A CN 202111141878 A CN202111141878 A CN 202111141878A CN 113932411 A CN113932411 A CN 113932411A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000003507 refrigerant Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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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
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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
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of household appliances, and particularly provides a control method for an air conditioner and the air conditioner. Specifically, the indoor unit of the air conditioner comprises an indoor heat exchanger and a liquid distributor, wherein the indoor heat exchanger comprises a plurality of branches communicated with the liquid distributor, a rotating member is arranged in the liquid distributor, and the rotating member can scatter the refrigerant so as to uniformly distribute the refrigerant to the plurality of branches, and the control method comprises the following steps: when the air conditioner operates in a refrigerating mode, the flow of the refrigerant in each branch is obtained, and the flow difference between the branches is calculated; acquiring the air inlet temperature and the air outlet temperature of an indoor unit; calculating the temperature difference between the inlet air temperature and the outlet air temperature; acquiring the number of branches; acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches; the rotating member is rotated according to the rotation speed. Through the arrangement, the flow of the refrigerant in each branch of the indoor heat exchanger is more favorably kept consistent, so that the efficiency of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, and particularly provides a control method for an air conditioner and the air conditioner.
Background
The air conditioner can be an indoor cooling/heating apparatus. With the improvement of the living standard of people, the air conditioner becomes one of the necessary household appliances of the public, and the living environment of people is greatly improved. The development of the air conditioner is developed towards a direction of more energy saving and environmental protection, so that the development of the air conditioner is important for improving the capacity of the air conditioner, and the higher the capacity of the air conditioner is, the lower the power consumption is, the more energy is saved by the air conditioner.
The heat exchanger of the existing air conditioner mostly comprises a plurality of branches, and the refrigerator is distributed into the branches through the liquid distributor, however, the refrigerant distribution of the plurality of branches of the heat exchanger of the existing air conditioner is often uneven, which results in poor energy efficiency of the air conditioner.
Therefore, there is a need in the art for a new solution to the above problems.
Disclosure of Invention
The invention aims to solve the technical problem that the energy efficiency of the air conditioner is poor due to the fact that refrigerant distribution is uneven in a plurality of branches of a heat exchanger of the existing air conditioner.
In a first aspect, the present invention provides a control method for an air conditioner, the air conditioner including an indoor unit including a casing, and an indoor heat exchanger and a liquid separator disposed in the casing, the indoor heat exchanger including a plurality of branches each communicating with the liquid separator, the liquid separator including a casing, a rotary member disposed in the casing, and a driving member drivingly connected to the rotary member, the rotary member being configured to break up refrigerant entering the casing when rotated so as to uniformly distribute the refrigerant to the plurality of branches, the control method including: when the air conditioner operates in a refrigerating mode, the flow of the refrigerant in each branch is obtained, and the flow difference between the branches is calculated; acquiring the inlet air temperature of the indoor unit; acquiring the air outlet temperature of the indoor unit; calculating the temperature difference between the inlet air temperature and the outlet air temperature; acquiring the number of the branches; acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches; rotating the rotating member at the rotational speed.
In a preferred embodiment of the above control method for an air conditioner, the step of "obtaining a rotation speed according to the flow rate difference, the temperature difference, and the number of branches" includes: the flow rate difference, the temperature difference and the number of branches are substituted into the following calculation formula, wherein S1 is (G1 ÷ T1). times.N 1 × c, S1 is the rotation speed, G1 is the flow rate difference, T1 is the temperature difference, N1 is the number of branches, and c is a constant.
In a preferable aspect of the control method for an air conditioner, the control method further includes: acquiring the number of the air conditioners; and acquiring the value of the constant c according to the matching number.
In a preferred embodiment of the above control method for an air conditioner, the flow difference is a maximum flow difference between the branches.
In a preferable aspect of the control method for an air conditioner, the control method further includes: comparing the flow difference with a preset value; if the flow difference is less than the preset value, the rotating member is not rotated.
In a second aspect, the present invention provides an air conditioner comprising a controller configured to be able to perform the control method described above.
In a third aspect, the present invention provides another control method for an air conditioner, the air conditioner including an outdoor unit including an outdoor heat exchanger and a liquid separator, the outdoor heat exchanger including a plurality of branch circuits, the plurality of branch circuits each communicating with the liquid separator, the liquid separator including a housing, a rotary member disposed in the housing, and a driving member drivingly connected to the rotary member, the rotary member being configured to break up refrigerant entering the housing when rotated so that the refrigerant is uniformly distributed to the plurality of branch circuits, the control method comprising: when the air conditioner is in heating operation, the flow of the refrigerant in each branch is obtained, and the flow difference between the branches is calculated; acquiring the inlet air temperature of the outdoor unit; acquiring the air outlet temperature of the outdoor unit; calculating the temperature difference between the inlet air temperature and the outlet air temperature; acquiring the number of the branches; acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches; rotating the rotating member at the rotational speed
In a preferred embodiment of the above control method for an air conditioner, the step of "obtaining a rotation speed according to the flow rate difference, the temperature difference, and the number of branches" includes: the flow rate difference, the temperature difference and the number of branches are substituted into the following calculation formula, wherein S2 is (G2 ÷ T2). times.N 2 × k, S2 is the rotation speed, G2 is the flow rate difference, T2 is the temperature difference, N2 is the number of branches, and k is a constant.
In a preferable aspect of the control method for an air conditioner, the control method further includes: acquiring the number of the air conditioners; and acquiring the value of the constant k according to the matching number.
In a preferred embodiment of the above control method for an air conditioner, the flow difference is a maximum flow difference between the branches.
Under the condition of adopting the technical scheme, the air conditioner is provided with the rotating component in the liquid distributor arranged on the indoor heat exchanger, and the rotating component is arranged to be capable of scattering the refrigerant entering the shell of the liquid distributor when rotating so as to enable the refrigerant to be uniformly distributed to the plurality of branches of the indoor heat exchanger; acquiring the inlet air temperature of an indoor unit; acquiring the air outlet temperature of the indoor unit; calculating the temperature difference between the inlet air temperature and the outlet air temperature; acquiring the number of branches; acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches; the rotating member is rotated according to the rotation speed. Through the arrangement, the flow of the refrigerant in each branch of the indoor heat exchanger is more favorably kept consistent, so that the efficiency of the air conditioner is improved.
Further, the step of "obtaining the rotation speed according to the flow rate difference, the temperature difference, and the number of the branches" specifically includes: the flow rate difference, the temperature difference and the number of branches are substituted into the following calculation formula, wherein S1 is (G1 ÷ T1). times.N 1 × c, S1 is the rotation speed, G1 is the flow rate difference, T1 is the temperature difference, N1 is the number of branches, and c is a constant. Through the arrangement, a more accurate rotating speed value can be obtained, so that the flow of the refrigerant in each branch of the indoor heat exchanger is more favorably kept consistent.
Still further, the control method of the present invention further includes: acquiring the number of the air conditioners; and acquiring the value of the constant c according to the matching number. Through the arrangement, the acquired rotating speed is matched with the matching number of the air conditioner.
Still further, the control method of the present invention further includes: comparing the flow difference with a preset value; if the flow difference is less than the preset value, the rotary member is not rotated. Through the arrangement, more energy is saved.
In addition, the air conditioner further provided on the basis of the technical scheme has the technical effects of the control method due to the adoption of the control method, and compared with the air conditioner before improvement, the air conditioner provided by the invention has better energy efficiency.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of an indoor unit of an air conditioner of the present invention;
fig. 2 is a schematic structural view of an outdoor heat exchanger of an air conditioner of the present invention;
FIG. 3 is a schematic view of the structure of the liquid distributor of the present invention;
FIG. 4 is a partial cross-sectional view of a dispenser of the present invention;
FIG. 5 is a flow chart of a control method of the present invention;
fig. 6 is a flow chart of another control method of the present invention.
List of reference numerals:
1. an indoor heat exchanger; 11. a first branch; 2. a first liquid separator; 21. a housing; 22. a rotating member; 23. a rotor; 24. a stator; 3. an outdoor heat exchanger; 31. a second branch circuit; 4. and a second liquid separator.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that in the description of the invention, although the steps of the control method of the invention are described in a particular order in the present application, the order is not limiting and that the steps may be performed in a different order by those skilled in the art without departing from the basic principles of the invention. For example, the execution order of step S30 and step S40 of the control method of the present invention may also be interchanged with each other, or step S30 and step S40 may be executed simultaneously.
It is to be understood that in describing the present invention, the terms "top," "bottom," and the like, which refer to directions or positional relationships, are used for convenience of description only and do not indicate or imply that the apparatus or component must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered as limiting. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The air conditioner of the invention comprises an indoor unit and an outdoor unit.
Referring to fig. 1, fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to the present invention.
As shown in fig. 1, the indoor unit of the present invention includes a casing and an indoor heat exchanger 1 disposed in the casing, wherein the indoor heat exchanger 1 includes a plurality of branches, which are denoted as first branches 11.
With continued reference to fig. 1, the indoor unit of the present invention further includes a liquid separator, denoted as a first liquid separator 2, disposed in the casing, and the first branches 11 are all communicated with the first liquid separator 2.
Referring next to fig. 2, fig. 2 is a schematic structural diagram of an outdoor heat exchanger of an air conditioner according to the present invention.
Preferably, as shown in fig. 2, the outdoor heat exchanger 3 of the present invention also includes a plurality of branches, which are referred to as second branches 31, and further, the outdoor heat exchanger 3 of the present invention also includes a liquid separator, which is referred to as a second liquid separator 4, and the plurality of second branches 31 are all communicated with the second liquid separator 4.
The first liquid separator 2 and the second liquid separator 4 may have the same structure or different structures, but it is needless to say that the first liquid separator 2 and the second liquid separator 4 are preferably configured to have the same structure. The technical solution of the present invention will be described further below by taking as an example a configuration in which the first liquid separator 2 and the second liquid separator 4 are provided in the same manner.
Referring next to fig. 3 and 4, wherein fig. 3 is a schematic structural view of the liquid distributor of the present invention;
fig. 4 is a partial sectional view of a dispenser of the present invention.
As shown in fig. 3 and 4, the liquid distributors (the first liquid distributor 2 and the second liquid distributor 4) of the present invention include a housing 21, a rotary member 22, and a driving member drivingly connected to the rotary member 22, wherein the rotary member 22 is disposed in the housing 21, and the rotary member 22 is configured to scatter refrigerant entering the housing 21 when rotated, so that the refrigerant is uniformly distributed to the plurality of branches (the first branch 11 and the second branch 31).
Preferably, as shown in fig. 3 and 4, the driving member comprises a stator 24 and a rotor 23, wherein the stator 24 is fixedly connected with the outer wall of the housing 21 of the liquid separator, and the rotor 23 is arranged inside the housing 21 and fixedly connected with the rotating member 22. When the stator 24 is energized, the rotor 23 can rotate the rotary member 22.
Preferably, as shown in fig. 4, the rotating member 22 is an impeller.
Based on the air conditioner, the invention also provides two control methods for the air conditioner.
As shown in fig. 5, the first control method of the present invention includes the steps of:
when the air conditioner is in the refrigerating operation,
s10: the flow rate of the refrigerant in each first branch passage is obtained.
Illustratively, the room ventilator includes four first branches, one flow sensor being provided on each first branch, and the flow sensors being in communication with a controller of the air conditioner so that the flow sensors can transmit detected flow data to the controller in a timely manner.
S20: and calculating the flow difference between the first branches.
After receiving the flow rates of the four first branches, the controller calculates the flow rate differences among the four first branches, and then performs subsequent calculation with the average value of the flow rate differences or the maximum flow rate difference as a parameter, but of course, it is preferable to perform subsequent calculation with the maximum flow rate difference.
S30: and acquiring the inlet air temperature of the indoor unit.
For example, a temperature sensor may be disposed at an air inlet of a cabinet of the indoor unit and communicate with a controller of the air conditioner, so that the temperature sensor can timely transmit detected temperature data to the controller.
S40: and acquiring the air outlet temperature of the indoor unit.
For example, similar to obtaining the inlet air temperature of the indoor unit, a temperature sensor may be disposed at the outlet of the casing of the indoor unit, and the temperature sensor may communicate with the controller of the air conditioner, so that the temperature sensor can transmit the detected temperature data to the controller in time.
S50: and calculating the temperature difference between the inlet air temperature and the outlet air temperature.
After acquiring the air inlet temperature and the air outlet temperature of the indoor unit, the controller calculates the temperature difference between the air inlet temperature and the air outlet temperature, wherein the temperature difference is the air inlet temperature and the air outlet temperature.
S60: the number of first branches is obtained.
In practical application, the number of the first branches can be prestored in a controller of the air conditioner, and the first branches can be directly extracted when the air conditioner is used.
S70: and acquiring the rotating speed according to the flow difference, the temperature difference and the number of the first branches.
And the controller acquires the rotating speed according to the three parameters after acquiring the flow difference, the temperature difference and the number of the first branches.
It should be noted that, in practical applications, the rotation speed may be calculated according to a calculation formula, or the corresponding rotation speed may also be looked up according to a comparison table, and the like, and such flexible adjustment and change do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
S80: the rotating member is rotated according to the rotation speed.
The controller controls the rotating member to rotate at the rotation speed after acquiring the rotation speed according to the flow rate difference, the temperature difference and the number of the first branches. For example, the rotation speed of the rotating member may be controlled by adjusting the voltage value of the stator.
Preferably, the step of "obtaining the rotation speed according to the flow difference, the temperature difference and the number of the first branches" specifically includes: the flow rate difference, the temperature difference and the number of first branches are substituted into the following calculation formula, S1 ═ (G1 ÷ T1) × N1 × c,
wherein S1 is the rotation speed, G1 is the flow difference, T1 is the temperature difference, N1 is the number of branches, and c is a constant.
Specific values of the constant c can be determined by experiments.
Preferably, the control method of the present invention further comprises: acquiring the number of the air conditioners; and acquiring the value of the constant c according to the matching number.
That is, the number of the constant c is plural and corresponds to the number of the air conditioners, and the corresponding number of the constant c is determined according to the number of the air conditioners before the rotation speed is calculated.
Preferably, the control method of the present invention further comprises: comparing the flow difference with a preset value; if the flow difference is less than the preset value, the rotary member is not rotated.
Illustratively, the preset value is 1g/s, and when the flow direction difference between the first branch pipes is less than 1g/s, the rotating member is not rotated.
It should be noted that the preset value is not limited to 1g/s, for example, 0.9g/s or 1.1g/s, etc., and those skilled in the art can flexibly set the specific value of the preset value according to experiments in practical applications.
It should be noted that, during the cooling operation of the air conditioner, the rotation speed of the rotating member in the liquid separator of the outdoor heat exchanger may be kept consistent with the rotation speed of the rotating member in the liquid separator of the indoor heat exchanger, or the rotation speed of the rotating member in the liquid separator of the outdoor heat exchanger may be kept constant, or the rotating member in the liquid separator of the outdoor heat exchanger may be kept constant, etc., and such flexible adjustment and change should not depart from the principle and scope of the present invention.
Preferably, the rotating member in the liquid separator on the outdoor heat exchanger is rotated at the highest rotational speed.
Preferably, as shown in fig. 6, the second control method of the present invention includes the steps of:
when the air conditioner is in heating operation,
s100: the flow rate of the refrigerant in each second branch passage is obtained.
Illustratively, the outdoor ventilator includes four second branches, and a flow sensor is provided on each second branch and communicates with the controller of the air conditioner so that the flow sensor can transmit detected flow data to the controller in time.
S200: and calculating the flow difference between the second branches.
After receiving the flow rates of the four second branches, the controller calculates the flow rate differences between the four second branches, and then performs subsequent calculation with the average value of the flow rate differences or the maximum flow rate difference as a parameter, but of course, it is preferable to perform subsequent calculation with the maximum flow rate difference.
S300: and acquiring the inlet air temperature of the outdoor unit.
For example, a temperature sensor may be provided at an air inlet of the outdoor unit and communicate with a controller of the air conditioner so that the temperature sensor can timely transmit detected temperature data to the controller.
S400: and acquiring the air outlet temperature of the outdoor unit.
For example, similar to obtaining the temperature of the inlet air of the outdoor unit, a temperature sensor may be disposed at the outlet of the outdoor unit and communicate with the controller of the air conditioner, so that the temperature sensor can transmit the detected temperature data to the controller in time.
S500: and calculating the temperature difference between the inlet air temperature and the outlet air temperature.
After acquiring the air inlet temperature and the air outlet temperature of the outdoor unit, the controller calculates the temperature difference between the air inlet temperature and the air outlet temperature, wherein the temperature difference is the air inlet temperature and the air outlet temperature.
S600: and acquiring the number of the second branches.
In practical application, the number of the second branches can be prestored in a controller of the air conditioner, and the second branches can be directly extracted when the air conditioner is used.
S700: and acquiring the rotating speed according to the flow difference, the temperature difference and the number of the second branches.
And the controller acquires the rotating speed according to the three parameters after acquiring the flow difference, the temperature difference and the number of the second branches.
It should be noted that, in practical applications, the rotation speed may be calculated according to a calculation formula, or the corresponding rotation speed may also be looked up according to a comparison table, and the like, and such flexible adjustment and change do not depart from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.
S800: the rotating member is rotated according to the rotation speed.
The controller controls the rotating member to rotate at the rotating speed after acquiring the rotating speed according to the flow rate difference, the temperature difference and the number of the second branches. For example, the rotation speed of the rotating member may be controlled by adjusting the voltage value of the stator.
Preferably, the step of "obtaining the rotation speed according to the flow difference, the temperature difference and the number of the second branches" specifically includes: the flow difference, the temperature difference and the number of the second branches are substituted into the following calculation formula,
S2＝(G2÷T2)×N2×k，
wherein S2 is the rotation speed, G2 is the flow difference, T2 is the temperature difference, N2 is the number of branches, and k is a constant.
Specific values of the constant k can be determined by experiments.
Preferably, the control method of the present invention further comprises: acquiring the number of the air conditioners; and acquiring the value of the constant k according to the matching number.
That is, the number of the constant k is plural and corresponds to the number of the air conditioners, and before the rotation speed is calculated, the corresponding number of the constant k is determined according to the number of the air conditioners.
Preferably, the control method of the present invention further comprises: comparing the flow difference with a preset value; if the flow difference is less than the preset value, the rotary member is not rotated.
Illustratively, the preset value is 1g/s, and when the flow direction difference between the first branch pipes is less than 1g/s, the rotating member is not rotated.
It should be noted that the preset value is not limited to 1g/s, for example, 0.9g/s or 1.1g/s, etc., and those skilled in the art can flexibly set the specific value of the preset value according to experiments in practical applications.
It should be noted that, during heating operation of the air conditioner, the rotation speed of the rotating member in the liquid separator of the indoor heat exchanger may be kept consistent with the rotation speed of the rotating member in the liquid separator of the outdoor heat exchanger, or the rotation speed of the rotating member in the liquid separator of the indoor heat exchanger may be kept constant, and so on, and such flexible adjustment and change should not depart from the principle and scope of the present invention.
Preferably, the rotating member in the liquid separator on the indoor heat exchanger is rotated at the highest rotation speed.
Finally, it should be noted that when the air conditioner is switched from the cooling mode to the heating mode or from the heating mode to the cooling mode, the rotating direction of the rotating member needs to be changed. Illustratively, the rotating member in the dispenser on the indoor heat exchanger rotates clockwise when the air conditioner is in cooling operation, and rotates the rotating member in the dispenser counterclockwise when the air conditioner is in heating operation.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A control method for an air conditioner, the air conditioner comprising an indoor unit including a casing, and an indoor heat exchanger and a liquid separator arranged in the casing, wherein the indoor heat exchanger includes a plurality of branches, each of the plurality of branches communicates with the liquid separator, the liquid separator includes a housing, a rotating member arranged in the housing, and a driving member in driving connection with the rotating member, the rotating member is configured to break up refrigerant entering the housing when rotated, so that the refrigerant is uniformly distributed to the plurality of branches, the control method comprising:
in the case where the air conditioner is operated in a cooling mode,
acquiring the flow rate of the refrigerant in each branch circuit and calculating the flow rate difference between the branch circuits;
acquiring the inlet air temperature of the indoor unit;
acquiring the air outlet temperature of the indoor unit;
calculating the temperature difference between the inlet air temperature and the outlet air temperature;
acquiring the number of the branches;
acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches;
rotating the rotating member at the rotational speed.
2. The control method according to claim 1, wherein the step of obtaining the rotation speed based on the flow rate difference, the temperature difference, and the number of branches specifically comprises:
substituting the flow rate difference, the temperature difference and the number of the branch circuits into the following calculation formula,
S1＝(G1÷T1)×N1×c，
wherein S1 is the rotation speed, G1 is the flow difference, T1 is the temperature difference, N1 is the number of branches, and c is a constant.
3. The control method according to claim 2, characterized by further comprising:
acquiring the number of the air conditioners;
and acquiring the value of the constant c according to the matching number.
4. The control method according to claim 1, characterized in that the flow difference is the largest flow difference between the branches.
5. The control method according to any one of claims 1 to 4, characterized by further comprising:
comparing the flow difference with a preset value;
if the flow difference is less than the preset value, the rotating member is not rotated.
6. An air conditioner comprising a controller, characterized in that the controller is configured to be able to perform the control method of any one of claims 1 to 5.
7. A control method for an air conditioner, the air conditioner comprising an outdoor unit including an outdoor heat exchanger and a liquid separator, the outdoor heat exchanger including a plurality of branch circuits, the plurality of branch circuits each communicating with the liquid separator, the liquid separator including a housing, a rotary member disposed in the housing, and a driving member drivingly connected to the rotary member, the rotary member being configured to break up refrigerant entering the housing when rotated so that the refrigerant is uniformly distributed to the plurality of branch circuits, the control method comprising:
in the heating operation of the air conditioner,
acquiring the flow rate of the refrigerant in each branch circuit and calculating the flow rate difference between the branch circuits;
acquiring the inlet air temperature of the outdoor unit;
acquiring the air outlet temperature of the outdoor unit;
calculating the temperature difference between the inlet air temperature and the outlet air temperature;
acquiring the number of the branches;
acquiring the rotating speed according to the flow difference, the temperature difference and the number of the branches;
rotating the rotating member at the rotational speed.
8. The control method according to claim 7, wherein the step of obtaining the rotation speed based on the flow rate difference, the temperature difference, and the number of branches specifically includes:
substituting the flow rate difference, the temperature difference and the number of the branch circuits into the following calculation formula,
S2＝(G2÷T2)×N2×k，
wherein S2 is the rotation speed, G2 is the flow difference, T2 is the temperature difference, N2 is the number of branches, and k is a constant.
9. The control method according to claim 8, characterized by further comprising:
acquiring the number of the air conditioners;
and acquiring the value of the constant k according to the matching number.
10. The control method according to claim 7, characterized in that the flow difference is the largest flow difference between the branches.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141878.3A CN113932411B (en) | 2021-09-28 | 2021-09-28 | Control method for air conditioner and air conditioner |
| PCT/CN2022/092857 WO2023050827A1 (en) | 2021-09-28 | 2022-05-13 | Control method for air conditioner, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141878.3A CN113932411B (en) | 2021-09-28 | 2021-09-28 | Control method for air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113932411A true CN113932411A (en) | 2022-01-14 |
| CN113932411B CN113932411B (en) | 2022-12-23 |
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| CN202111141878.3A Active CN113932411B (en) | 2021-09-28 | 2021-09-28 | Control method for air conditioner and air conditioner |
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| WO (1) | WO2023050827A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023050827A1 (en) * | 2021-09-28 | 2023-04-06 | 青岛海尔空调器有限总公司 | Control method for air conditioner, and air conditioner |
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- 2021-09-28 CN CN202111141878.3A patent/CN113932411B/en active Active
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| Publication number | Publication date |
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| CN113932411B (en) | 2022-12-23 |
| WO2023050827A1 (en) | 2023-04-06 |
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