CN105928138B - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN105928138B CN105928138B CN201610264886.XA CN201610264886A CN105928138B CN 105928138 B CN105928138 B CN 105928138B CN 201610264886 A CN201610264886 A CN 201610264886A CN 105928138 B CN105928138 B CN 105928138B
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/12—Vibration or noise prevention 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- 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
- 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
- F24F11/65—Electronic processing for selecting an operating mode
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- Mathematical Physics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a control method thereof, wherein the air conditioner comprises: the variable-capacity enthalpy-increasing compressor device comprises a common compression mode, a single-cylinder enhanced vapor injection mode and a double-cylinder enhanced vapor injection mode; the acquisition module is used for acquiring the operation mode of the air conditioner; the temperature detector is used for detecting the indoor environment temperature; the controller is respectively connected with the variable-capacity enthalpy-increasing compressor device, the acquisition module and the temperature detector, and the controller controls the working mode of the variable-capacity enthalpy-increasing compressor device according to the running mode of the air conditioner and the indoor environment temperature. According to the air conditioner provided by the embodiment of the invention, the speed and the effect of refrigeration or heating can be improved, the operation noise can be reduced, and the energy efficiency ratio can be improved when the load is low.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
With the increasing living standard of people, the requirements of people on the quality of life are higher and higher. Among them, the popularization of air conditioners is an important part of improving the comfort of life.
At present, in the related art, a vapor injection enthalpy increasing compressor is adopted to improve the cooling or heating effect of an air conditioner. The enhanced vapor injection compressor generally adopts a single rotor, and the rotor of the compressor is stressed in a single direction during operation, so that the vibration and the noise are high. And, due to the limitation of noise, the maximum operation frequency of the compressor should not be too high, which will definitely limit the output capacity of the compressor, so that the speed of cooling and heating of the air conditioner is still not fast enough, and the effect is not good enough. In the common air conditioner adopting the dual-rotor enhanced vapor injection compressor, the electric energy consumed by the operation of the compressor is more, and particularly when the load of the air conditioner is lower, the power of the dual-rotor enhanced vapor injection compressor is relatively higher, so that the energy efficiency ratio of the air conditioner is reduced.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Accordingly, an object of the present invention is to provide an air conditioner capable of not only increasing the speed and effect of cooling or heating, but also reducing the operation noise, and at the same time, improving the energy efficiency ratio when the load is low.
Another objective of the present invention is to provide a control method of an air conditioner.
An air conditioner according to an embodiment of a first aspect of the present invention includes: the variable-capacity enthalpy-increasing compressor device comprises a common compression mode, a single-cylinder enhanced vapor injection mode and a double-cylinder enhanced vapor injection mode; the acquisition module is used for acquiring the operation mode of the air conditioner; a temperature detector to detect an indoor ambient temperature; the controller, the controller respectively with but variable volume enthalpy-increasing compressor device the module of acquireing with the temperature detector links to each other, the controller is according to the operational mode of air conditioner with indoor ambient temperature control but variable volume enthalpy-increasing compressor device's mode of operation.
According to the air conditioner provided by the embodiment of the invention, the variable-capacity enthalpy-increasing compressor device is arranged, so that the controller can control the variable-capacity enthalpy-increasing compressor device to switch among the common compression mode, the single-cylinder enhanced vapor injection mode and the double-cylinder enhanced vapor injection mode according to the operation mode of the air conditioner and the indoor environment temperature, therefore, when the air conditioner has a large load requirement, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched into the double-cylinder enhanced vapor injection mode to improve the output capacity of the compressor, thereby improving the refrigerating or heating speed and effect of the air conditioner, simultaneously reducing the operation noise, when the load of the air conditioner is relatively low, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched into the single-cylinder enhanced vapor injection mode, thereby relatively reducing the energy consumption of the air conditioner, improving the energy efficiency ratio of the air conditioner, and when the load of the air conditioner is further, the working mode of the switchable variable-capacity enthalpy-increasing compressor device is a common compression mode, so that the energy consumption can be further reduced. Therefore, the air conditioner provided by the embodiment of the invention can improve the comfort level, fully meet the requirements of users and achieve the purpose of energy conservation.
In addition, the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the variable capacity enthalpy-increasing compressor device comprises a first control valve and an enthalpy-increasing compressor, the enthalpy-increasing compressor comprises a first air suction port, a second air suction port, an air exhaust port, an air supplement port and an air return assembly, the first control valve comprises a first inlet, a second inlet and an outlet, the first inlet of the first control valve is communicated with the air exhaust port of the enthalpy-increasing compressor, the second inlet of the first control valve is communicated with the first port of the air return assembly, the second port of the air return assembly is communicated with the first air suction port of the enthalpy-increasing compressor, the outlet of the first control valve is communicated with the second air suction port of the enthalpy-increasing compressor, the air supplement port of the enthalpy-increasing compressor is communicated with the first port of the flash evaporator assembly, the second port of the flash evaporator assembly is communicated with the outdoor heat exchanger, and the third port of the flash evaporator assembly is communicated with the indoor heat exchanger, and a two-way valve is arranged between the second port and the third port of the flash evaporator assembly, and a one-way valve is arranged between the air supplementing port of the enthalpy-increasing compressor and the first port of the flash evaporator assembly.
Further, the controller controls an operation mode of the variable capacity enthalpy addition compressor device by controlling the first control valve, the two-way valve, and the one-way valve, wherein the variable capacity enthalpy addition compressor device enters the two-cylinder enhanced vapor injection mode when the second inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable capacity enthalpy-increasing compressor device enters the single-cylinder enhanced vapor injection mode; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in a closed state, and the two-way valve is in an open state, the variable capacity enthalpy increase compressor device enters the normal compression mode.
Further, when the operation mode of the air conditioner is a heating mode, the controller judges the indoor environment temperature, wherein when the indoor environment temperature is lower than a first preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode; when the indoor environment temperature is greater than or equal to a first preset temperature and less than a second preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to be started in the single-cylinder enhanced vapor injection mode; and when the indoor environment temperature is greater than or equal to the second preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the common compression mode.
Further, after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is greater than or equal to the sum of the user set temperature and a preset temperature threshold, the controller controls the variable-capacity enthalpy-increasing compressor device to operate in the normal compression mode, and when the indoor environment temperature is reduced to be less than the difference between the user set temperature and the preset temperature threshold again, the controller selects the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
Further, when the operation mode of the air conditioner is a cooling mode, the controller judges the indoor environment temperature, wherein when the indoor environment temperature is lower than a third preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the normal compression mode; when the indoor environment temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to be started in the single-cylinder enhanced vapor injection mode; when the indoor environment temperature is greater than or equal to the fourth preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode.
Further, after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is smaller than the difference between the user set temperature and the preset temperature threshold, the controller controls the variable-capacity enthalpy-increasing compressor device to operate in the common compression mode, and when the indoor environment temperature rises again to be greater than or equal to the sum of the user set temperature and the preset temperature threshold, the controller selects the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
A control method of an air conditioner according to an embodiment of a second aspect of the present invention, wherein the air conditioner includes a variable capacity enthalpy-increasing compressor device, and the operation modes of the variable capacity enthalpy-increasing compressor device include a normal compression mode, a single cylinder enhanced vapor injection mode, and a two cylinder enhanced vapor injection mode, the method includes the steps of: acquiring an operation mode of the air conditioner; detecting the indoor environment temperature; and controlling the working mode of the variable-capacity enthalpy-increasing compressor device according to the running mode of the air conditioner and the indoor environment temperature.
According to the control method of the air conditioner provided by the embodiment of the invention, the variable-capacity enthalpy-increasing compressor device can be controlled to be switched among the common compression mode, the single-cylinder enhanced vapor injection mode and the double-cylinder enhanced vapor injection mode according to the operation mode of the air conditioner and the indoor environment temperature, so that when the air conditioner has a large load requirement, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched to be the double-cylinder enhanced vapor injection mode to improve the output capacity of the compressor, thereby improving the refrigerating or heating speed and effect of the air conditioner, and simultaneously reducing the operation noise, when the load of the air conditioner is relatively low, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched to be the single-cylinder enhanced vapor injection mode, so that the energy consumption of the air conditioner can be relatively reduced, the energy efficiency ratio of the air conditioner can be improved, and when the load of the air conditioner is further reduced, the working mode of the, therefore, the energy consumption can be further reduced, the comfort level can be improved, the requirements of users can be fully met, and the purpose of energy conservation can be achieved.
In addition, the control method of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the variable capacity enthalpy-increasing compressor device comprises a first control valve and an enthalpy-increasing compressor, the enthalpy-increasing compressor comprises a first air suction port, a second air suction port, an air exhaust port, an air supplement port and an air return assembly, the first control valve comprises a first inlet, a second inlet and an outlet, the first inlet of the first control valve is communicated with the air exhaust port of the enthalpy-increasing compressor, the second inlet of the first control valve is communicated with the first port of the air return assembly, the second port of the air return assembly is communicated with the first air suction port of the enthalpy-increasing compressor, the outlet of the first control valve is communicated with the second air suction port of the enthalpy-increasing compressor, the air supplement port of the enthalpy-increasing compressor is communicated with the first port of the flash evaporator assembly, the second port of the flash evaporator assembly is communicated with the outdoor heat exchanger, and the third port of the flash evaporator assembly is communicated with the indoor heat exchanger, a two-way valve is arranged between the second port and the third port of the flash evaporator assembly, a one-way valve is arranged between the gas supplementing port of the enthalpy-increasing compressor and the first port of the flash evaporator assembly, and when the second inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable-capacity enthalpy-increasing compressor device enters the double-cylinder enhanced vapor injection mode; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable capacity enthalpy-increasing compressor device enters the single-cylinder enhanced vapor injection mode; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in a closed state, and the two-way valve is in an open state, the variable capacity enthalpy increase compressor device enters the normal compression mode.
Specifically, the controlling of the operation mode of the variable enthalpy-increasing compressor device according to the operation mode of the air conditioner and the indoor ambient temperature includes: when the operation mode of the air conditioner is a heating mode, judging the indoor environment temperature; if the indoor environment temperature is lower than a first preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode; if the indoor environment temperature is greater than or equal to a first preset temperature and less than a second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the single-cylinder enhanced vapor injection mode; and if the indoor environment temperature is greater than or equal to the second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the common compression mode.
Specifically, the method for controlling the operation mode of the variable enthalpy-increasing compressor device according to the operation mode of the air conditioner and the indoor ambient temperature further comprises the following steps: after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is greater than or equal to the sum of the user set temperature and a preset temperature threshold value, controlling the variable-capacity enthalpy-increasing compressor device to operate in the common compression mode; and if the indoor environment temperature is reduced to be less than the difference between the user set temperature and the preset temperature threshold value again, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
Specifically, the controlling of the operation mode of the variable enthalpy-increasing compressor device according to the operation mode of the air conditioner and the indoor ambient temperature includes: when the operation mode of the air conditioner is a refrigeration mode, judging the indoor environment temperature; if the indoor environment temperature is lower than a third preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the common compression mode; if the indoor environment temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the single-cylinder enhanced vapor injection mode; and if the indoor environment temperature is greater than or equal to the fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode.
Specifically, the method for controlling the operation mode of the variable enthalpy-increasing compressor device according to the operation mode of the air conditioner and the indoor ambient temperature further comprises the following steps: after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is smaller than the difference between the user set temperature and a preset temperature threshold, controlling the variable-capacity enthalpy-increasing compressor device to operate in the common compression mode; and if the indoor environment temperature rises again to be more than or equal to the sum of the user set temperature and the preset temperature threshold, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
Drawings
FIG. 1 is a block schematic diagram of an air conditioner according to one embodiment of the present invention;
fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of a remote controller of an air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention.
Reference numerals:
the variable capacity enthalpy-increasing compressor device 10, the first control valve 11, the first inlet 111, the second inlet 112, the outlet 113, the enthalpy-increasing compressor 12, the first air suction port 121, the second air suction port 122, the air discharge port 123, the air supplement port 124 and the air return assembly 125;
the acquisition module 20, the temperature detector 30 and the controller 40;
a flash assembly 50, a flash assembly first port 51, a flash assembly second port 52, a flash assembly third port 53, a bi-directional valve 54, a one-way valve 55;
the outdoor heat exchanger 60, the indoor heat exchanger 70;
a four-way valve 80, a first port 81 of the four-way valve, a second port 82 of the four-way valve, a third port 83 of the four-way valve, and a fourth port 84 of the four-way valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An air conditioner and a control method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a block diagram schematically illustrating an air conditioner according to an embodiment of the present invention.
As shown in fig. 1, an air conditioner according to an embodiment of the present invention includes: a variable capacity enthalpy-increasing compressor device 10, an acquisition module 20, a temperature detector 30, and a controller 40.
The variable-capacity enthalpy-increasing compressor device 10 comprises an enthalpy-increasing compressor, and the working modes of the variable-capacity enthalpy-increasing compressor device 10 comprise a common compression mode, a single-cylinder enhanced vapor injection mode and a double-cylinder enhanced vapor injection mode. Under the common compression mode, the enthalpy-increasing compressor does not inject air or increase enthalpy, and the single rotor operates; in a single-cylinder enhanced vapor injection mode, the enhanced vapor injection compressor increases vapor injection and single rotor operates; in the double-cylinder enhanced vapor injection mode, the enhanced vapor injection compressor increases vapor injection and the double rotors run.
The obtaining module 20 is used for obtaining an operation mode of the air conditioner, the temperature detector 30 is used for detecting an indoor environment temperature, the controller 40 is respectively connected with the variable capacity enthalpy-increasing compressor device 10, the obtaining module 20 and the temperature detector 30, and the controller 40 controls an operation mode of the variable capacity enthalpy-increasing compressor device 10 according to the operation mode of the air conditioner and the indoor environment temperature.
Fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention. As shown in fig. 2, the variable capacity enthalpy-increasing compressor device 10 may include a first control valve 11 and an enthalpy-increasing compressor 12. Enthalpy-increasing compressor 12 may include a first suction port 121, a second suction port 122, a discharge port 123, an air supplement port 124, and an air return assembly 125. The first control valve 11 may include a first inlet 111, a second inlet 112, and an outlet 113.
Specifically, in an embodiment of the present invention, the first control valve 11 may be a three-way valve, or may be another component having the same function as the three-way valve. For example, after one inlet/outlet is blocked by a four-way valve having four inlets/outlets, the four-way valve can perform the same function as a three-way valve, and thus the first control valve 11 may be a four-way valve in which one inlet/outlet is blocked.
As shown in fig. 2, the first inlet 111 of the first control valve 11 may be communicated with the exhaust port 123 of the enthalpy-increasing compressor 12, the second inlet 112 of the first control valve 11 may be communicated with a first port of the air return assembly 125, a second port of the air return assembly 125 may be communicated with the first intake port 121 of the enthalpy-increasing compressor 12, and the outlet 113 of the first control valve 11 may be communicated with the second intake port 122 of the enthalpy-increasing compressor 12. The air supplement port 124 of the enthalpy-increasing compressor 12 may be communicated to the first port 51 of the flash evaporator assembly 50, the second port 52 of the flash evaporator assembly 50 may be communicated to the outdoor heat exchanger 60, the third port 53 of the flash evaporator assembly 50 may be communicated to the indoor heat exchanger 70, a two-way valve 54 may be disposed between the second port 52 and the third port 53 of the flash evaporator assembly 50, and a one-way valve 55 may be disposed between the air supplement port 124 of the enthalpy-increasing compressor 12 and the first port 51 of the flash evaporator assembly 50. Wherein, a forward end of the check valve 55 may be connected with the first port 51 of the flash evaporator assembly 50, and an opposite end of the check valve 55 may be connected with the gas supplementing port 124 of the enthalpy-increasing compressor 12.
Based on the above connection relationship, the controller 40 can control the operation mode of the variable enthalpy-increasing compressor device 10 by controlling the first control valve 11, the two-way valve 54, and the one-way valve 55. Specifically, when the second inlet 112 of the first control valve 11 is communicated with the outlet 113 of the first control valve 11, the check valve 55 is in an open state, and the two-way valve 54 is in a closed state, the variable-capacity enthalpy-increasing compressor device 10 enters a two-cylinder enhanced vapor injection mode, at this time, a higher capacity output of the air conditioner can be realized, the performance of the air conditioner is stronger, and particularly, when ultra-high temperature refrigeration or ultra-low temperature heating is performed, room temperature can be adjusted in place in a shorter time, so that the comfort of a user is improved; when the first inlet 111 of the first control valve 11 is communicated with the outlet 113 of the first control valve 11, the one-way valve 55 is in an open state, and the two-way valve 54 is in a closed state, the variable-capacity enthalpy-increasing compressor device 10 enters a single-cylinder enhanced vapor injection mode, so that the lower-capacity output of the air conditioner can be realized, the vibration of the compressor is reduced, the noise of the whole air conditioner is reduced, and the purpose of energy conservation can be achieved; when the first inlet 111 of the first control valve 11 is communicated with the outlet 113 of the first control valve 11, the check valve 55 is in a closed state, and the two-way valve 54 is in an open state, the variable-capacity enthalpy-increasing compressor device 10 enters a normal compression mode, at which the output capacity of the air conditioner is further reduced, the vibration of the compressor and the noise of the whole machine are further reduced, and more energy is saved.
Further, as shown in fig. 2, in the air conditioner according to the embodiment of the present invention, the exhaust port 123 of the enthalpy-increasing compressor 12 may further communicate with the first port 81 of the four-way valve 80, the second port 82 of the four-way valve 80 may communicate with the outdoor heat exchanger 60, the third port 83 of the four-way valve 80 may communicate with the indoor heat exchanger 70, and the fourth port 84 of the four-way valve 80 may communicate with the return air port of the return air assembly 125. A first throttling assembly 61 (which may be an electronic expansion valve, for example) may be further disposed between the second port 52 of the flash evaporator assembly 50 and the outdoor heat exchanger 60, and a second throttling assembly 71 (which may also be an electronic expansion valve) may be further disposed between the third port 53 of the flash evaporator assembly 50 and the indoor heat exchanger 70.
In the embodiment of the invention, the controller 40 can control the variable-capacity enthalpy-increasing compressor device to start or operate in the common compression mode, the single-cylinder enthalpy-increasing mode or the double-cylinder enthalpy-increasing mode according to the operation mode of the air conditioner and the indoor environment temperature, so that the high-capacity output of the air conditioner can be realized to quickly heat or quickly cool the indoor environment, the vibration of the compressor can be reduced, the noise of the air conditioner is reduced, the low-power and high-energy-efficiency operation of the air conditioner is realized, and the air conditioner is energy-saving and environment-friendly.
Specifically, when the operation mode of the air conditioner is the heating mode, the controller 40 may determine the indoor ambient temperature, wherein when the indoor ambient temperature is lower than a first preset temperature, the controller 40 may control the variable-capacity enthalpy-increasing compressor device 10 to start in the two-cylinder enhanced vapor injection mode; when the indoor ambient temperature is greater than or equal to the first preset temperature and less than the second preset temperature, the controller 40 may control the variable-capacity enthalpy-increasing compressor device 10 to start in the single-cylinder enhanced vapor injection mode; when the indoor ambient temperature is greater than or equal to the second preset temperature, the controller 40 may control the variable-capacity enthalpy-increasing compressor device 10 to start in the normal compression mode. After the variable capacity enthalpy-increasing compressor device 10 is started, if the indoor ambient temperature is greater than or equal to the sum of the user set temperature and the preset temperature threshold, the controller 40 controls the variable capacity enthalpy-increasing compressor device 10 to operate in the normal compression mode, and when the indoor ambient temperature drops to be less than the difference between the user set temperature and the preset temperature threshold again, the controller 40 selects the working mode of the variable capacity enthalpy-increasing compressor device 10 according to the current indoor ambient temperature.
According to an embodiment of the present invention, when the operation mode of the air conditioner is the cooling mode, the controller 40 determines the indoor ambient temperature, wherein when the indoor ambient temperature is lower than a third preset temperature, the controller 40 may control the variable capacity enthalpy increasing compressor device 10 to start in the normal compression mode; when the indoor ambient temperature is greater than or equal to the third preset temperature and less than the fourth preset temperature, the controller 40 may control the variable-capacity enthalpy-increasing compressor device 10 to start in the single-cylinder enhanced vapor injection mode; when the indoor ambient temperature is greater than or equal to the fourth preset temperature, the controller 40 may control the variable-capacity enthalpy-increasing compressor device 10 to start in the two-cylinder enhanced vapor injection mode. After the variable capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is less than the difference between the user set temperature and the preset temperature threshold, the controller 40 controls the variable capacity enthalpy-increasing compressor device 10 to operate in the normal compression mode, and when the indoor environment temperature rises again to be greater than or equal to the sum of the user set temperature and the preset temperature threshold, the controller 40 selects the working mode of the variable capacity enthalpy-increasing compressor device 10 according to the current indoor environment temperature.
It should be noted that the first to fourth preset temperatures may be preset and stored in the controller 40, and the first to fourth preset temperatures are calibrated according to specific parameters and actual performance of the air conditioner.
In addition, in one embodiment of the present invention, the controller 40 may also select an operation mode of the variable enthalpy-increase compressor device according to a user instruction. It should be understood that in the double-cylinder enhanced vapor injection mode, the output capacity of the enhanced vapor compressor is higher, and the effect of the air conditioner is better when the speed of refrigeration or heating is higher; in the single-cylinder enhanced vapor injection mode, the output capacity of the enhanced vapor compressor is inferior, the refrigerating or heating speed of the air conditioner is relatively slow, and the effect is slightly poor; under the ordinary compression mode, the output capacity of the enthalpy-increasing compressor is the lowest, the refrigerating or heating speed of the air conditioner is the slowest, and the effect is the worst. Therefore, the working mode of the variable enthalpy-increasing compressor device can be selected according to the requirements of users on the cooling or heating speed and effect of the air conditioner. Specifically, in an embodiment of the present invention, the remote controller shown in fig. 3 may be utilized to select the dual-cylinder enhanced vapor injection mode through the fast cooling/heating button, select the single-cylinder enhanced vapor injection mode through the fast cooling/heating button, and select the normal compression mode through the normal cooling/heating button.
According to the air conditioner provided by the embodiment of the invention, the variable-capacity enthalpy-increasing compressor device is arranged, so that the controller can control the variable-capacity enthalpy-increasing compressor device to switch among the common compression mode, the single-cylinder enhanced vapor injection mode and the double-cylinder enhanced vapor injection mode according to the operation mode of the air conditioner and the indoor environment temperature, therefore, when the air conditioner has a large load requirement, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched into the double-cylinder enhanced vapor injection mode to improve the output capacity of the compressor, thereby improving the refrigerating or heating speed and effect of the air conditioner, simultaneously reducing the operation noise, when the load of the air conditioner is relatively low, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched into the single-cylinder enhanced vapor injection mode, thereby relatively reducing the energy consumption of the air conditioner, improving the energy efficiency ratio of the air conditioner, and when the load of the air conditioner is further, the working mode of the switchable variable-capacity enthalpy-increasing compressor device is a common compression mode, so that the energy consumption can be further reduced. Therefore, the air conditioner provided by the embodiment of the invention can improve the comfort level, fully meet the requirements of users and achieve the purpose of energy conservation.
Fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention, wherein the air conditioner may be the air conditioner described in the above embodiment, and the air conditioner includes a variable capacity enthalpy-increasing compressor device, and the operation modes of the variable capacity enthalpy-increasing compressor device include a normal compression mode, a single-cylinder enhanced vapor injection mode, and a two-cylinder enhanced vapor injection mode. Furthermore, the variable-capacity enthalpy-increasing compressor device comprises a first control valve and an enthalpy-increasing compressor, the enthalpy-increasing compressor comprises a first air suction port, a second air suction port, an air exhaust port, an air supplement port and an air return assembly, the first control valve comprises a first inlet, a second inlet and an outlet, the first inlet of the first control valve is communicated with the air exhaust port of the enthalpy-increasing compressor, the second inlet of the first control valve is communicated with the first port of the air return assembly, the second port of the air return assembly is communicated with the first air suction port of the enthalpy-increasing compressor, the outlet of the first control valve is communicated with the second air suction port of the enthalpy-increasing compressor, the air supplement port of the enthalpy-increasing compressor is communicated with the first port of the flash evaporator assembly, the second port of the flash evaporator assembly is communicated with the outdoor heat exchanger, the third port of the flash evaporator assembly is communicated with the indoor heat exchanger, a two-way valve is arranged between the second port and the third port, a check valve is arranged between the air supplementing port of the enthalpy-increasing compressor and the first port of the flash evaporator component. When the second inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an opening state, and the two-way valve is in a closing state, the variable-volume enthalpy-increasing compressor device enters a double-cylinder enhanced vapor injection mode; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an opening state, and the two-way valve is in a closing state, the variable-volume enthalpy-increasing compressor device enters a single-cylinder enhanced vapor injection mode; when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in a closed state, and the two-way valve is in an open state, the variable-volume enthalpy-increasing compressor device enters a common compression mode.
As shown in fig. 4, the method for controlling an air conditioner according to an embodiment of the present invention includes the following steps:
s401, acquiring an operation mode of the air conditioner.
The operation mode of the air conditioner may include a heating mode and a cooling mode.
S402, detecting the indoor environment temperature.
And S403, controlling the working mode of the variable-capacity enthalpy-increasing compressor device according to the running mode of the air conditioner and the indoor ambient temperature.
Specifically, when the operation mode of the air conditioner is a heating mode, the indoor environment temperature is judged; if the indoor environment temperature is lower than a first preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a double-cylinder enhanced vapor injection mode; if the indoor environment temperature is greater than or equal to a first preset temperature and less than a second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a single-cylinder enhanced vapor injection mode; and if the indoor environment temperature is greater than or equal to a second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a common compression mode. After the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is more than or equal to the sum of the user set temperature and a preset temperature threshold, controlling the variable-capacity enthalpy-increasing compressor device to operate in a common compression mode; and if the indoor environment temperature is reduced to be less than the difference between the user set temperature and the preset temperature threshold value again, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
When the operation mode of the air conditioner is a refrigeration mode, judging the indoor environment temperature; if the indoor environment temperature is lower than a third preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a common compression mode; if the indoor environment temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a single-cylinder enhanced vapor injection mode; and if the indoor environment temperature is greater than or equal to the fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in a double-cylinder enhanced vapor injection mode. After the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is smaller than the difference between the user set temperature and the preset temperature threshold, controlling the variable-capacity enthalpy-increasing compressor device to operate in a common compression mode; and if the indoor environment temperature rises again to be more than or equal to the sum of the user set temperature and the preset temperature threshold, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
According to a specific example of the present invention, as shown in fig. 5, after the operation mode of the air conditioner is selected, in the case where the heating mode is selected, the indoor ambient temperature T1 may be judged, and the start mode of the variable capacity enthalpy addition compressor device may be determined according to the indoor ambient temperature T1. After the variable capacity enthalpy-increasing compressor device is started, if the indoor environment temperature T1 is greater than or equal to the sum of the user set temperature TS and the preset temperature threshold value delta T, controlling the variable capacity enthalpy-increasing compressor device to operate in a common compression mode, and if the indoor environment temperature T1 is reduced to be less than the difference between the user set temperature TS and the preset temperature threshold value delta T again, selecting the working mode of the variable capacity enthalpy-increasing compressor device according to the current indoor environment temperature T1; when the cooling mode is selected, the indoor ambient temperature T1 may be determined, and the start mode of the variable capacity enthalpy addition compressor device may be determined according to the indoor ambient temperature T1. After the variable capacity enthalpy-increasing compressor device is started, if the indoor environment temperature T1 is less than the difference between the user set temperature TS and the preset temperature threshold value delta T, the variable capacity enthalpy-increasing compressor device is controlled to operate in a common compression mode, and if the indoor environment temperature T1 rises again to be more than or equal to the sum of the user set temperature TS and the preset temperature threshold value delta T, the working mode of the variable capacity enthalpy-increasing compressor device is selected according to the current indoor environment temperature T1.
It should be noted that the first to fourth preset temperatures may be preset and stored in the controller 40, and the first to fourth preset temperatures are calibrated according to specific parameters and actual performance of the air conditioner.
In addition, the control method of the air conditioner according to the embodiment of the present invention may further include: and selecting the working mode of the variable enthalpy-increasing compressor device according to the user instruction. It should be understood that in the double-cylinder enhanced vapor injection mode, the output capacity of the enhanced vapor compressor is higher, and the effect of the air conditioner is better when the speed of refrigeration or heating is higher; in the single-cylinder enhanced vapor injection mode, the output capacity of the enhanced vapor compressor is inferior, the refrigerating or heating speed of the air conditioner is relatively slow, and the effect is slightly poor; under the ordinary compression mode, the output capacity of the enthalpy-increasing compressor is the lowest, the refrigerating or heating speed of the air conditioner is the slowest, and the effect is the worst. Therefore, the working mode of the variable enthalpy-increasing compressor device can be selected according to the requirements of users on the cooling or heating speed and effect of the air conditioner. Specifically, in an embodiment of the present invention, the remote controller shown in fig. 3 may be utilized to select the dual-cylinder enhanced vapor injection mode through the fast cooling/heating button, select the single-cylinder enhanced vapor injection mode through the fast cooling/heating button, and select the normal compression mode through the normal cooling/heating button.
According to the control method of the air conditioner provided by the embodiment of the invention, the variable-capacity enthalpy-increasing compressor device can be controlled to be switched among the common compression mode, the single-cylinder enhanced vapor injection mode and the double-cylinder enhanced vapor injection mode according to the operation mode of the air conditioner and the indoor environment temperature, so that when the air conditioner has a large load requirement, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched to be the double-cylinder enhanced vapor injection mode to improve the output capacity of the compressor, thereby improving the refrigerating or heating speed and effect of the air conditioner, and simultaneously reducing the operation noise, when the load of the air conditioner is relatively low, the working mode of the variable-capacity enthalpy-increasing compressor device can be switched to be the single-cylinder enhanced vapor injection mode, so that the energy consumption of the air conditioner can be relatively reduced, the energy efficiency ratio of the air conditioner can be improved, and when the load of the air conditioner is further reduced, the working mode of the, therefore, the energy consumption can be further reduced, the comfort level can be improved, the requirements of users can be fully met, and the purpose of energy conservation can be achieved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. An air conditioner, comprising:
the variable-capacity enthalpy-increasing compressor device comprises a first control valve and an enthalpy-increasing compressor, the enthalpy-increasing compressor comprises a first air suction port, a second air suction port, an air exhaust port, an air supplementing port and an air returning assembly, the first control valve comprises a first inlet, a second inlet and an outlet, the first inlet of the first control valve is communicated with the air exhaust port of the enthalpy-increasing compressor, the second inlet of the first control valve is communicated with the first port of the air returning assembly, the second port of the air returning assembly is communicated with the first air suction port of the enthalpy-increasing compressor, the outlet of the first control valve is communicated with the second air suction port of the enthalpy-increasing compressor, the air supplementing port of the enthalpy-increasing compressor is communicated with the first port of the flash evaporator assembly, the second port of the flash evaporator assembly is communicated with the outdoor heat exchanger, and the third port of the flash evaporator assembly is communicated with the indoor heat exchanger, a two-way valve is arranged between the second port and the third port of the flash evaporator assembly, a one-way valve is arranged between the air supplementing port of the enthalpy-increasing compressor and the first port of the flash evaporator assembly, and the working modes of the variable-capacity enthalpy-increasing compressor device comprise a common compression mode, a single-cylinder enhanced vapor injection mode and a double-cylinder enhanced vapor injection mode;
the acquisition module is used for acquiring the operation mode of the air conditioner;
a temperature detector to detect an indoor ambient temperature;
a controller connected to the variable capacity enthalpy-increasing compressor device, the acquisition module, and the temperature detector, respectively, the controller controls an operation mode of the variable enthalpy-increasing compressor device according to an operation mode of the air conditioner and the indoor ambient temperature, wherein, the operation mode is a heating mode, the working mode of the variable-capacity enthalpy-increasing compressor device is gradually switched from a double-cylinder enhanced vapor injection mode to a single-cylinder enhanced vapor injection mode along with the increase of the indoor environment temperature, and then is switched from the single-cylinder enhanced vapor injection mode to a common compression mode, the operation mode is a refrigeration mode, the working mode of the variable-capacity enthalpy-increasing compressor device is gradually switched from a double-cylinder enhanced vapor injection mode to a single-cylinder enhanced vapor injection mode along with the reduction of the indoor environment temperature, and then the single-cylinder enhanced vapor injection mode is switched to a common compression mode.
2. The air conditioner according to claim 1, wherein the controller controls an operation mode of the variable capacity enthalpy-increasing compressor device by controlling the first control valve, the two-way valve, and the one-way valve, wherein,
when the second inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable capacity enthalpy increasing compressor device enters the double-cylinder enhanced vapor injection mode;
when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable capacity enthalpy-increasing compressor device enters the single-cylinder enhanced vapor injection mode;
when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in a closed state, and the two-way valve is in an open state, the variable capacity enthalpy increase compressor device enters the normal compression mode.
3. The air conditioner according to claim 2, wherein the controller judges the indoor ambient temperature when an operation mode of the air conditioner is a heating mode, wherein,
when the indoor environment temperature is lower than a first preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode;
when the indoor environment temperature is greater than or equal to a first preset temperature and less than a second preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to be started in the single-cylinder enhanced vapor injection mode;
and when the indoor environment temperature is greater than or equal to the second preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the common compression mode.
4. The air conditioner according to claim 3, wherein after the variable capacity enthalpy-increasing compressor device is started, if the indoor ambient temperature is greater than or equal to a sum of a user-set temperature and a preset temperature threshold, the controller controls the variable capacity enthalpy-increasing compressor device to operate in the normal compression mode, and when the indoor ambient temperature drops again to be less than a difference between the user-set temperature and the preset temperature threshold, the controller selects the operation mode of the variable capacity enthalpy-increasing compressor device according to the current indoor ambient temperature.
5. The air conditioner according to claim 2, wherein the controller judges the indoor ambient temperature when an operation mode of the air conditioner is a cooling mode, wherein,
when the indoor environment temperature is lower than a third preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the common compression mode;
when the indoor environment temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to be started in the single-cylinder enhanced vapor injection mode;
when the indoor environment temperature is greater than or equal to the fourth preset temperature, the controller controls the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode.
6. The air conditioner according to claim 5, wherein after the variable capacity enthalpy-increasing compressor device is started, if the indoor ambient temperature is less than the difference between the user set temperature and a preset temperature threshold, the controller controls the variable capacity enthalpy-increasing compressor device to operate in the normal compression mode, and when the indoor ambient temperature rises again to be greater than or equal to the sum of the user set temperature and the preset temperature threshold, the controller selects the operation mode of the variable capacity enthalpy-increasing compressor device according to the current indoor ambient temperature.
7. A control method of an air conditioner is characterized in that the air conditioner comprises a variable-capacity enthalpy-increasing compressor device, the variable-capacity enthalpy-increasing compressor device comprises a first control valve and an enthalpy-increasing compressor, the enthalpy-increasing compressor comprises a first air suction port, a second air suction port, an air exhaust port, an air supplementing port and an air returning assembly, the first control valve comprises a first inlet, a second inlet and an outlet, the first inlet of the first control valve is communicated with the air exhaust port of the enthalpy-increasing compressor, the second inlet of the first control valve is communicated with the first port of the air returning assembly, the second port of the air returning assembly is communicated with the first air suction port of the enthalpy-increasing compressor, the outlet of the first control valve is communicated with the second air suction port of the enthalpy-increasing compressor, and the air supplementing port of the enthalpy-increasing compressor is communicated with the first port of a flash evaporator assembly, the second port of the flash evaporator component is communicated with the outdoor heat exchanger, the third port of the flash evaporator component is communicated with the indoor heat exchanger, a two-way valve is arranged between the second port and the third port of the flash evaporator component, a one-way valve is arranged between the air supplementing port of the enthalpy-increasing compressor and the first port of the flash evaporator component, the working modes of the variable-capacity enthalpy-increasing compressor device comprise a common compression mode, a single-cylinder enthalpy-increasing vapor injection mode and a double-cylinder enthalpy-increasing vapor injection mode, and the method comprises the following steps:
acquiring an operation mode of the air conditioner;
detecting the indoor environment temperature;
according to the operational mode of air conditioner with indoor environment temperature control the operational mode of variable volume enthalpy-increasing compressor device, wherein, the operational mode is the mode of heating, the operational mode of variable volume enthalpy-increasing compressor device is followed the promotion of indoor environment temperature is gradually switched to single cylinder enthalpy-increasing mode by double-cylinder enhanced vapor injection mode, is switched to ordinary compression mode by single cylinder enhanced vapor injection mode again, the operational mode is the refrigeration mode, the operational mode of variable volume enthalpy-increasing compressor device is followed the reduction of indoor environment temperature is gradually switched to single cylinder enhanced vapor injection mode by double-cylinder enhanced vapor injection mode, is again switched to ordinary compression mode by single cylinder enhanced vapor injection mode.
8. The method of claim 7, wherein the variable capacity enthalpy increase compressor device enters the two-cylinder enhanced vapor injection mode when the second inlet of the first control valve is in communication with the outlet of the first control valve, the check valve is in an open state, and the two-way valve is in a closed state;
when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in an open state, and the two-way valve is in a closed state, the variable capacity enthalpy-increasing compressor device enters the single-cylinder enhanced vapor injection mode;
when the first inlet of the first control valve is communicated with the outlet of the first control valve, the one-way valve is in a closed state, and the two-way valve is in an open state, the variable capacity enthalpy increase compressor device enters the normal compression mode.
9. The method of claim 8, wherein controlling the operating mode of the variable capacity enthalpy increase compressor device according to the operating mode of the air conditioner and the indoor ambient temperature comprises:
when the operation mode of the air conditioner is a heating mode, judging the indoor environment temperature;
if the indoor environment temperature is lower than a first preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode;
if the indoor environment temperature is greater than or equal to a first preset temperature and less than a second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the single-cylinder enhanced vapor injection mode;
and if the indoor environment temperature is greater than or equal to the second preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the common compression mode.
10. The method of claim 9, wherein controlling the operating mode of the variable capacity enthalpy increase compressor device according to the operating mode of the air conditioner and the indoor ambient temperature, further comprises:
after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is greater than or equal to the sum of the user set temperature and a preset temperature threshold value, controlling the variable-capacity enthalpy-increasing compressor device to operate in the common compression mode;
and if the indoor environment temperature is reduced to be less than the difference between the user set temperature and the preset temperature threshold value again, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
11. The method of claim 8, wherein controlling the operating mode of the variable capacity enthalpy increase compressor device according to the operating mode of the air conditioner and the indoor ambient temperature comprises:
when the operation mode of the air conditioner is a refrigeration mode, judging the indoor environment temperature;
if the indoor environment temperature is lower than a third preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the common compression mode;
if the indoor environment temperature is greater than or equal to a third preset temperature and less than a fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the single-cylinder enhanced vapor injection mode;
and if the indoor environment temperature is greater than or equal to the fourth preset temperature, controlling the variable-capacity enthalpy-increasing compressor device to start in the double-cylinder enhanced vapor injection mode.
12. The method of claim 11, wherein controlling the operating mode of the variable capacity enthalpy increase compressor device according to the operating mode of the air conditioner and the indoor ambient temperature, further comprises:
after the variable-capacity enthalpy-increasing compressor device is started, if the indoor environment temperature is smaller than the difference between the user set temperature and a preset temperature threshold, controlling the variable-capacity enthalpy-increasing compressor device to operate in the common compression mode;
and if the indoor environment temperature rises again to be more than or equal to the sum of the user set temperature and the preset temperature threshold, selecting the working mode of the variable-capacity enthalpy-increasing compressor device according to the current indoor environment temperature.
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| CN107328047A (en) * | 2017-08-31 | 2017-11-07 | 广东美的制冷设备有限公司 | Air conditioner and its efficiency computational methods |
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| CN109556307A (en) * | 2018-11-30 | 2019-04-02 | 合肥美的电冰箱有限公司 | Refrigeration system and refrigerating plant with it |
| CN110186164A (en) * | 2019-05-31 | 2019-08-30 | 宁波奥克斯电气股份有限公司 | A kind of control method and device of air conditioner |
| CN110186163A (en) * | 2019-05-31 | 2019-08-30 | 宁波奥克斯电气股份有限公司 | A kind of control method and air conditioner of air conditioner |
| CN110186165B (en) * | 2019-05-31 | 2021-04-02 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner |
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| CN203203289U (en) * | 2013-04-09 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner |
| CN203572113U (en) * | 2013-10-31 | 2014-04-30 | 海尔集团公司 | Air conditioner and air supplementing and enthalpy adding system of air conditioner |
| CN203823909U (en) * | 2014-05-16 | 2014-09-10 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN105466060A (en) * | 2015-12-28 | 2016-04-06 | 珠海格力电器股份有限公司 | Variable-volume two-stage compression system and control method thereof |
| CN205641205U (en) * | 2016-04-25 | 2016-10-12 | 广东美的制冷设备有限公司 | Air -conditioner |
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