CN114198857B - Air conditioner control method and air conditioner system - Google Patents
Air conditioner control method and air conditioner system Download PDFInfo
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- CN114198857B CN114198857B CN202111361339.0A CN202111361339A CN114198857B CN 114198857 B CN114198857 B CN 114198857B CN 202111361339 A CN202111361339 A CN 202111361339A CN 114198857 B CN114198857 B CN 114198857B
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 156
- 238000010438 heat treatment Methods 0.000 claims abstract description 73
- 238000005057 refrigeration Methods 0.000 claims abstract description 62
- 238000004378 air conditioning Methods 0.000 claims description 59
- 238000001816 cooling Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 21
- 238000001704 evaporation Methods 0.000 abstract description 10
- 230000008020 evaporation Effects 0.000 abstract description 10
- 238000004781 supercooling Methods 0.000 abstract description 7
- 230000009466 transformation Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 101150043258 gins1 gene Proteins 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 101100465853 Caenorhabditis elegans psf-2 gene Proteins 0.000 description 1
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- 238000003491 array Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000008092 positive effect Effects 0.000 description 1
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- 239000007787 solid Substances 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
- F24F11/30—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
- F24F11/62—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
- F24F11/62—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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses an air conditioner control method and an air conditioner system, wherein the air conditioner control method comprises a circulation loop formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger through working medium pipes, and a refrigerant heat exchange loop formed by sequentially connecting an electromagnetic valve, an electronic expansion valve, a one-way valve and a refrigerant heat exchange device through the working medium pipes; the structure that the refrigerant heat exchange loop is added between the exhaust pipe of the compressor and the outdoor heat exchanger is adopted, when high-temperature refrigeration is carried out, the throttled relatively low-temperature refrigerant is controlled to cool the outdoor heat exchanger, the temperature of the refrigerant is reduced, the supercooling degree of the refrigerant reaching the indoor heat exchanger is improved, the refrigeration effect is improved, when low-temperature heating is carried out, the high-temperature refrigerant exhausted by the exhaust pipe is controlled to heat the outdoor heat exchanger, the evaporation temperature of the outdoor heat exchanger is increased, the heating effect is improved, and the existing problems existing in high-temperature refrigeration and low-temperature heating are solved with low cost and a simple transformation structure.
Description
Technical Field
The invention belongs to the technical field of air conditioner control, and particularly relates to an air conditioner control method and an air conditioner system.
Background
The refrigeration and heating are the most basic functions of air-conditioning products, and how to improve the refrigeration and heating effects of the air conditioner determines the competitiveness of air-conditioning manufacturers.
When the air conditioning system is used for high-temperature refrigeration, the outdoor environment temperature is high, the exhaust pressure of the outdoor heat exchanger is high, the condensation heat exchange effect of the outdoor heat exchanger is reduced, the supercooling degree of a refrigerant reaching an indoor unit is low, and the refrigeration effect is poor.
Similarly, when the air conditioning system heats at a low temperature, the outdoor environment temperature is low, which results in too low an evaporation temperature of the outdoor heat exchanger, and since the temperature of the refrigerant reaching the outdoor heat exchanger is low, and the evaporation temperature is too low, frequent frosting of the outdoor heat exchanger occurs, and the heating effect is poor.
In the prior art, in order to solve the problems of high-temperature refrigeration and low-temperature heating, a device is usually additionally arranged in the system to reduce the condensation temperature of the outdoor heat exchanger during high-temperature refrigeration or increase the evaporation temperature of the outdoor heat exchanger during heating, but the mode of additionally arranging the device is high in cost and complex in manufacturing, and is not beneficial to popularization.
Disclosure of Invention
The invention aims to provide an air conditioner control method and an air conditioner system.A refrigerant heat exchange loop is additionally arranged between a compressor exhaust pipe and an outdoor heat exchanger, and when the air conditioner is used for high-temperature refrigeration, the throttled low-temperature refrigerant is adopted to cool the outdoor heat exchanger, so that the temperature of the refrigerant is reduced, the supercooling degree of the refrigerant reaching an indoor heat exchanger is improved, and the refrigeration effect is improved; when the outdoor heat exchanger is heated at a low temperature, the high-temperature refrigerant discharged by the exhaust pipe is used for heating the outdoor heat exchanger, so that the evaporation temperature of the outdoor heat exchanger is increased, and the heating effect is improved.
The invention is realized by adopting the following technical scheme:
the air conditioner control method is applied to an air conditioner system, and the air conditioner system comprises the following steps:
a circulating loop is formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger through working medium pipes;
the electromagnetic valve, the electronic expansion valve, the one-way valve and the refrigerant heat exchange device are sequentially connected into a refrigerant heat exchange loop through a working medium pipe; the refrigerant heat exchange loop is connected between the exhaust pipe of the compressor and the throttling element, and the refrigerant heat exchange device exchanges heat with the outdoor heat exchanger;
the control method comprises the following steps:
when the air conditioning system operates in a refrigeration mode and the ambient temperature is higher than a first environment temperature, opening an electromagnetic valve of the refrigerant heat exchange loop, and controlling the refrigeration heat exchange opening degree of the electronic expansion valve based on the temperature of an external coil pipe of the air conditioning system, so that a high-temperature refrigerant discharged by the compressor is throttled by the electronic expansion valve into a low-temperature refrigerant, and the low-temperature refrigerant enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger and then flows to the front end of the indoor heat exchanger through the one-way valve;
when the air conditioning system operates in a heating mode and the ambient temperature is lower than a second loop temperature, the electromagnetic valve of the refrigerant heat exchange loop is opened, and the heating heat exchange opening degree of the electronic expansion valve is controlled based on the temperature of the external coil pipe of the air conditioning system, so that high-temperature and high-pressure refrigerant discharged by the compressor enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger after being throttled and depressurized by the electronic expansion valve, and then flows to the front end of the throttling element through the one-way valve.
And further, controlling the refrigerating heat exchange opening or the heating heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system by adopting Psf = a × Te + b, wherein Psf is the refrigerating heat exchange opening or the heating heat exchange opening of the electronic expansion valve, a is an opening adjusting coefficient, b is an opening reference value, and Te is the temperature of the external coil.
Further, the method further comprises: when the air conditioning system operates in a heating mode and the ambient temperature is lower than the lowest ring temperature, controlling the electronic expansion valve to be fully opened; wherein the lowest ring temperature is lower than the second ring temperature.
Further, the method further comprises: setting an environment temperature interval;
different a and b are set for different ambient temperature intervals.
An air conditioning system is proposed, comprising:
a circulating loop is formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger through working medium pipes;
the electromagnetic valve, the electronic expansion valve, the one-way valve and the refrigerant heat exchange device are sequentially connected into a refrigerant heat exchange loop through a working medium pipe; the refrigerant heat exchange loop is connected between the exhaust pipe of the compressor and the throttling element, and the refrigerant heat exchange device exchanges heat with the outdoor heat exchanger;
the system further comprises:
the high-temperature refrigeration control unit is used for opening an electromagnetic valve of the refrigerant heat exchange loop when the air conditioning system operates in a refrigeration mode and the ambient temperature is higher than a first ambient temperature, and controlling the refrigeration heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system, so that a high-temperature refrigerant discharged by the compressor is throttled by the electronic expansion valve into a low-temperature refrigerant, and the low-temperature refrigerant enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger and then flows to the front end of the indoor heat exchanger through the one-way valve;
and the low-temperature heating control unit is used for opening an electromagnetic valve of the refrigerant heat exchange loop when the air conditioning system operates in a heating mode and the environmental temperature is lower than a second loop temperature, and controlling the heating heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system, so that high-temperature and high-pressure refrigerant discharged by the compressor enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger after being throttled and depressurized by the electronic expansion valve, and then flows to the front end of the throttling element through the one-way valve.
Further, the system further comprises: the expansion valve opening control unit is used for calculating the refrigeration heat exchange opening of the electronic expansion valve by adopting Psf = a × Te + b and sending the refrigeration heat exchange opening to the high-temperature refrigeration control unit; or calculating the heating heat exchange opening of the electronic expansion valve by adopting Psf = a × Te + b, and sending the heating heat exchange opening to the low-temperature heating control unit; wherein Psf is the refrigerating/heating heat exchange opening of the electronic expansion valve, a is an opening adjustment coefficient, b is an opening reference value, and Te is the temperature of the outer coil.
Further, the low-temperature heating control unit is further configured to control the electronic expansion valve to be fully opened when the ambient temperature is lower than the lowest ambient temperature; wherein the lowest ring temperature is lower than the second ring temperature.
Further, the expansion valve opening degree control unit is further configured to: setting an environment temperature interval; different a and b are set for different ambient temperature intervals.
Furthermore, the refrigerant heat exchange device consists of a heat conduction plate and a pipeline.
Further, the heat conducting plate is an aluminum plate.
Compared with the prior art, the invention has the advantages and positive effects that: in the air conditioner control method and the air conditioner system provided by the invention, the air conditioner system comprises a circulation loop formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger through working medium pipes, and a refrigerant heat exchange loop formed by sequentially connecting an electromagnetic valve, an electronic expansion valve, a one-way valve and a refrigerant heat exchange device through the working medium pipes; the refrigerant heat exchange device in the refrigerant heat exchange loop exchanges heat with the outdoor heat exchanger; when the air conditioning system operates in a refrigeration mode, if the ambient temperature is higher than the first ring temperature, namely under a high-temperature refrigeration condition, an electromagnetic valve of a refrigerant heat exchange loop is opened, and the refrigeration heat exchange opening of an electronic expansion valve is controlled based on the temperature of an external coil of the air conditioning system, so that a high-temperature refrigerant discharged by a compressor is throttled by the electronic expansion valve to become a low-temperature refrigerant, the low-temperature refrigerant enters a refrigerant heat exchange device to exchange heat with an outdoor heat exchanger, the temperature of the refrigerant of the outdoor heat exchanger is reduced, the exhaust pressure of the outdoor heat exchanger is reduced, the condensation effect of the outdoor heat exchanger is improved, the supercooling degree of the refrigerant reaching the indoor heat exchanger is reduced, the refrigeration effect is improved, the refrigerant after heat exchange passes through a one-way valve to the front end of the indoor heat exchanger, is converged with the refrigerant after being condensed by the outdoor heat exchanger and throttled by a throttling element, and enters the indoor heat exchanger to perform refrigeration cycle; when the air conditioning system operates in a heating mode, if the ambient temperature is lower than the second loop temperature, namely under the condition of low-temperature heating, the electromagnetic valve of the refrigerant heat exchange loop is opened, and the heating heat exchange opening of the electronic expansion valve is controlled based on the temperature of the external coil of the air conditioning system, so that high-temperature and high-pressure refrigerant discharged by the compressor enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger after being throttled and depressurized by the electronic expansion valve, the evaporation temperature of the outdoor heat exchanger is increased, the liquid refrigerant after heat exchange reaches the front end of the throttling element through the one-way valve, is converged with the refrigerant condensed by the indoor heat exchanger, and enters the outdoor heat exchanger to perform heating circulation after being throttled by the throttling element. In the air conditioner control method and the air conditioner system, the refrigerant heat exchange loop is additionally arranged between the compressor exhaust pipe and the outdoor heat exchanger, so that the throttled relatively low-temperature refrigerant is controlled to cool the outdoor heat exchanger during high-temperature refrigeration, the temperature of the refrigerant is reduced, the supercooling degree of the refrigerant reaching the indoor heat exchanger is improved, the refrigeration effect is improved, the high-temperature refrigerant exhausted by the exhaust pipe is controlled to heat the outdoor heat exchanger during low-temperature heating, the evaporation temperature of the outdoor heat exchanger is increased, the heating effect is improved, and the existing problems in high-temperature refrigeration and low-temperature heating are realized by a low-cost and simple improved structure.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a system configuration diagram of an air conditioning system according to the present invention;
fig. 2 is a flowchart of an air conditioner control method according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a refrigerant flow direction of an air conditioning system under a high-temperature refrigeration condition according to an embodiment of the present invention;
fig. 4 is a flowchart of an air conditioner control method according to a second embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a refrigerant flow direction of an air conditioning system under a low-temperature heating condition according to a second embodiment of the present invention;
fig. 6 is a system architecture diagram of an air conditioning system according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise specifically stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
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 to implicitly indicate 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 otherwise specified.
The invention aims to provide an air conditioner control method, which aims at the working conditions of high-temperature refrigeration and low-temperature heating, is characterized in that a refrigerant heat exchange loop is added in an air conditioner system and is realized by a solenoid valve, an electronic expansion valve, a refrigerant heat exchange device and a one-way valve, and the technical problem of reduction of refrigeration or heating efficiency of the existing air conditioner under the working conditions of high-temperature refrigeration and low-temperature heating due to overhigh or overlow environmental temperature is solved by combining solenoid valve switching control and a simple structure with low cost.
Specifically, as shown in fig. 1, the air conditioning system of the present invention includes:
the circulating loop is formed by sequentially connecting a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a throttling element 4 and an indoor heat exchanger 5 through working medium pipes.
The refrigerant heat exchange loop is formed by sequentially connecting an electromagnetic valve 6, an electronic expansion valve 7, a refrigerant heat exchange device 8 and a one-way valve 9 through working medium pipes. The refrigerant heat exchange circuit is connected between the exhaust pipe of the compressor 1 and the throttling element 4, wherein the refrigerant heat exchange device 8 exchanges heat with the outdoor heat exchanger 3.
Based on the above air conditioning system structure, the air conditioning control method of the present invention is described in detail with the following two embodiments.
Example one
In a refrigeration mode, the compressor 1 compresses to generate high-temperature and high-pressure gaseous refrigerant, the high-temperature and high-pressure gaseous refrigerant enters the outdoor heat exchanger 3 to exchange heat with outdoor air, the high-temperature and high-pressure gaseous refrigerant is condensed into high-pressure liquid refrigerant, the high-pressure liquid refrigerant enters the indoor heat exchanger 5 after being throttled by the throttling element 4 to exchange heat with indoor air and is evaporated into low-pressure gaseous refrigerant, so that indoor refrigeration is realized, and the low-pressure gaseous refrigerant returns to the compressor 1 to perform circulating refrigeration.
The embodiment is developed for the high-temperature refrigeration condition, as shown in fig. 2 and 3, and includes the following steps:
step S11: when the air conditioning system is operated in a cooling mode, the ambient temperature is detected.
The first loop temperature T1 is set, and when the first loop temperature T1 is higher than the first loop temperature T1, the outdoor environment temperature is too high, which may cause the exhaust temperature of the outdoor heat exchanger to be too high and reduce the refrigeration effect.
Step S12: when the ambient temperature is higher than the first environment temperature, the electromagnetic valve of the refrigerant heat exchange loop is opened, and the refrigeration heat exchange opening degree of the electronic expansion valve is controlled based on the temperature of the external coil of the air conditioning system.
When the ambient temperature is higher than the first ring temperature T1, the electromagnetic valve 6 of the refrigerant heat exchange circuit is opened, that is, the refrigerant heat exchange circuit is opened to enter the operating condition, and under other conditions, the electromagnetic valve 6 is closed.
The refrigeration heat exchange opening degree Psf1 of the electronic expansion valve 7 is controlled according to the temperature of an outer coil of the air conditioning system, and the temperature of the outer coil is obtained through a temperature sensor arranged on the outer coil.
As shown in fig. 3, after the solenoid valve 6 and the electronic expansion valve 7 are both opened, the high-temperature and high-pressure refrigerant discharged from the compressor 1 is discharged in two paths, and one path enters a circulation loop composed of the compressor 1, the four-way valve 2, the outdoor heat exchanger 3, the throttling element 4 and the indoor heat exchanger 5 to implement normal refrigeration; the other path of the refrigerant enters a refrigerant heat exchange loop and is throttled by an electronic expansion valve 7 to become a relatively low-temperature refrigerant (relatively high-temperature outdoor environment), and the low-temperature refrigerant enters a refrigerant heat exchange device 8 to exchange heat with the outdoor heat exchanger 3, so that the temperature of the refrigerant of the outdoor heat exchanger 3 is reduced, the exhaust pressure of the outdoor heat exchanger 3 is also reduced, the condensation effect of the outdoor heat exchanger 3 is improved, the supercooling degree reaching the indoor heat exchanger 5 is reduced, and the refrigeration effect is improved.
The refrigerant after heat exchange reaches the front end of the indoor heat exchanger 5 through the one-way valve 9, is converged with the refrigerant after being condensed by the outdoor heat exchanger 3 and then throttled by the throttling element 4, and enters the indoor heat exchanger together for refrigeration cycle.
Example two
In a heating mode, the compressor 1 compresses to generate high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant enters the indoor heat exchanger 3 to exchange heat with indoor air and is condensed into high-pressure liquid refrigerant, so that indoor heating is achieved, the high-pressure liquid refrigerant enters the outdoor heat exchanger 3 after being throttled by the throttling element 4 to exchange heat with outdoor air and is evaporated into low-pressure gaseous refrigerant, and the low-pressure gaseous refrigerant returns to the compressor 1 to be cooled circularly.
The embodiment is developed for the low-temperature heating condition, as shown in fig. 4 and 5, and includes the following steps:
step S21: when the air conditioning system is operated in a heating mode, the ambient temperature is detected.
The second loop temperature T2 is set, the second loop temperature T2 is taken as a node, and when the second loop temperature T2 is lower than the second loop temperature T2, the outdoor environment temperature is too low, which may cause frequent frosting of the outdoor heat exchanger and reduce the heating effect.
Step S22: and when the ambient temperature is lower than the second loop temperature, opening an electromagnetic valve of the refrigerant heat exchange loop, and controlling the heating and heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system.
When the ambient temperature is lower than the second loop temperature T2, the electromagnetic valve 6 of the refrigerant heat exchange circuit is opened, that is, the refrigerant heat exchange circuit is opened to enter the working condition, and under other conditions, the electromagnetic valve 6 is closed.
And controlling the heating and heat exchange opening Psf2 of the electronic expansion valve 7 according to the temperature of an outer coil of the air conditioning system, wherein the temperature of the outer coil is obtained through a temperature sensor arranged on the outer coil.
As shown in fig. 5, after the solenoid valve 6 and the electronic expansion valve 7 are both opened, the high-temperature and high-pressure refrigerant discharged from the compressor 1 is discharged in two paths, and one path enters a circulation loop composed of the compressor 1, the four-way valve 2, the indoor heat exchanger 5, the throttling element 4 and the outdoor heat exchanger 3 to implement normal heating; the other path of the refrigerant enters a refrigerant heat exchange loop, enters a refrigerant heat exchange device 8 after being throttled and depressurized by an electronic expansion valve 7, exchanges heat with the outdoor heat exchanger 3, and improves the evaporation temperature of the outdoor heat exchanger 3, so that the heating effect is improved, the liquid refrigerant after heat exchange passes through a one-way valve 9 to the front end of the throttling element 4, is converged with the refrigerant condensed by the indoor heat exchanger 5, is throttled by the throttling element 4, and then enters the outdoor heat exchanger for heating circulation.
Based on the first embodiment and the second embodiment, the invention has the advantages that the structure that the refrigerant heat exchange loop is added between the exhaust pipe of the compressor and the outdoor heat exchanger is adopted on the existing air-conditioning system, the throttled relatively low-temperature refrigerant is controlled to cool the outdoor heat exchanger during high-temperature refrigeration, the temperature of the refrigerant is reduced, the supercooling degree of the refrigerant reaching the indoor heat exchanger is improved, the refrigeration effect is improved, the high-temperature refrigerant exhausted by the exhaust pipe is controlled to heat the outdoor heat exchanger during low-temperature heating, the evaporation temperature of the outdoor heat exchanger is increased, the heating effect is improved, the existing problems in high-temperature refrigeration and low-temperature heating are realized by using a low-cost and simple modified structure, the control means is simple, and the popularization of the air-conditioning system in a high-temperature area or a low-temperature area is facilitated.
EXAMPLE III
In the application of the present invention, the electronic expansion valve 7 is intended to regulate the temperature of the refrigerant entering the refrigerant heat exchange device 8, and this embodiment provides a specific calculation manner for controlling the cooling heat exchange opening or the heating heat exchange opening of the electronic expansion valve 7 based on the temperature of the external coil of the air conditioning system on the basis of the first embodiment and the second embodiment.
Under the high temperature refrigeration operating mode and the low temperature condition of heating, the aperture of electronic expansion valve 7 will carry out the regulation of different degrees according to the operating condition, just can reach under the high temperature refrigeration operating mode and come to implement the heat transfer with outdoor heat exchanger with the refrigerant of relative microthermal to reach and reduce the refrigerant temperature and promote the effect of refrigerant liquefaction, and reach under the low temperature condition of heating and come to implement the heat transfer with outdoor heat exchanger with the refrigerant of high temperature, in order to reach the effect that improves the refrigerant temperature and promote the refrigerant evaporation.
Specifically, in the present embodiment, the opening degree of the electronic expansion valve 7 is calculated by the following formula
Psf＝a*Te+b；
Wherein Psf is the cooling heat exchange opening or the heating heat exchange opening of the electronic expansion valve, a is the opening adjustment coefficient, b is the opening reference value, and Te is the temperature of the outer coil.
Under the high-temperature refrigeration working condition, the opening degree of the electronic expansion valve 7 is calculated according to Psf1= a × Te + b, the values of a and b are determined according to empirical values, when the ambient temperature is higher than a first ring temperature T1, for example, T1=50 ℃, the electromagnetic valve 6 is opened, the opening degree of the electronic expansion valve 7 is calculated according to a value 3,b of 0, and when the ambient temperature is lower than the first ring temperature T1, the electromagnetic valve 6 is closed.
Under the low-temperature heating working condition, the opening of the electronic expansion valve is calculated according to the following mode:
calculating the opening degree of the electronic expansion valve 7 by Psf1= a × Te + b, wherein the values of a and b are set according to the ring temperature interval, specifically:
1) Setting an environment temperature interval:
setting three nodes of a second ring temperature T2, a third ring temperature T3 and a lowest ring temperature T4, and dividing the three nodes into three ring temperature intervals: t3< TW ≦ T2, T4< TW ≦ T3, and TW ≦ T4, T2> T3> T4, TW being ambient temperature.
2) Different a and b are set for different ambient temperature intervals.
When T3< TW is less than or equal to T2, for example, T3= -10 ℃, T2=0 ℃, the electromagnetic valve 6 is opened, and the opening degree of the electronic expansion valve 7 is calculated according to a value of a 1,b of 300; when T4 is more than or equal to TW and less than or equal to T3, for example, T4 is less than or equal to-15 ℃, the electromagnetic valve 6 is opened, and the opening degree of the electronic expansion valve 7 is calculated according to a value of a 2,b and a value of 350; when TW is less than or equal to T4, the electromagnetic valve 6 is opened, and the electronic expansion valve 7 is fully opened.
Example four
In this embodiment, an air conditioning system is provided corresponding to the first to third embodiments, as shown in fig. 6, including:
the circulating loop is formed by sequentially connecting a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a throttling element 4 and an indoor heat exchanger 5 by working medium pipes.
The electromagnetic valve 6, the electronic expansion valve 7, the one-way valve 9 and the refrigerant heat exchange device 8 are connected in sequence by working medium pipes to form a refrigerant heat exchange loop; the refrigerant heat exchange loop is connected between the exhaust pipe of the compressor 1 and the throttling element 4, wherein the refrigerant heat exchange device 8 exchanges heat with the outdoor heat exchanger 3.
And the high-temperature refrigeration control unit 10 is used for opening the electromagnetic valve 6 of the refrigerant heat exchange loop when the air conditioning system operates in a refrigeration mode and the ambient temperature is higher than the first ambient temperature, and controlling the refrigeration heat exchange opening of the electronic expansion valve 7 based on the temperature of the external coil of the air conditioning system, so that the high-temperature refrigerant discharged by the compressor 1 is throttled by the electronic expansion valve 7 into a low-temperature refrigerant, and the low-temperature refrigerant enters the refrigerant heat exchange device 8 to exchange heat with the outdoor heat exchanger 3 and then flows to the front end of the indoor heat exchanger 5 through the one-way valve 9.
And the low-temperature heating control unit 11 is used for opening the electromagnetic valve 6 of the refrigerant heat exchange loop when the air conditioning system operates in the heating mode and the environmental temperature is lower than the second loop temperature, and controlling the heating and heat exchange opening of the electronic expansion valve 7 based on the temperature of the external coil of the air conditioning system, so that the high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the refrigerant heat exchange device 8 after being throttled and depressurized by the electronic expansion valve 7 to exchange heat with the outdoor heat exchanger 3, and then flows to the front end of the throttling element 4 through the one-way valve 9.
The air conditioning system further includes:
an expansion valve opening degree control unit 12, configured to calculate a refrigeration heat exchange opening degree of the electronic expansion valve 7 by using Psf = a × Te + b, and send the refrigeration heat exchange opening degree to the high-temperature refrigeration control unit 10; or, the heating heat exchange opening degree of the electronic expansion valve 7 is calculated by using Psf = a × Te + b, and the heating heat exchange opening degree is sent to the low-temperature heating control unit 11.
Wherein Psf is the refrigerating/heating heat exchange opening of the electronic expansion valve, a is the opening adjustment coefficient, b is the opening reference value, and Te is the outer coil temperature.
The low-temperature heating control unit 11 is further configured to control the electronic expansion valve 7 to be fully opened when the ambient temperature is lower than the lowest ambient temperature; wherein the lowest ring temperature is lower than the second ring temperature.
The expansion valve opening degree control unit 12 is further configured to: setting an environment temperature interval; and different a and b are set for different ambient temperature intervals.
In the above embodiment, the refrigerant heat exchange device 8 may be composed of a heat conducting plate and a pipeline, the pipeline is a working medium pipe passing through the refrigerant, and the heat conducting plate is, for example, an aluminum plate; the heat conducting plate covers the pipeline and is in contact with the outdoor heat exchanger 3 to carry out heat exchange.
It should be noted that, in a specific implementation process, the control part may be implemented by a processor in a hardware form executing a computer execution instruction in a software form stored in a memory, which is not described herein, and all programs corresponding to actions executed by the control part may be stored in a computer readable storage medium of the system in a software form, so that the processor can call and execute operations corresponding to the above modules.
The computer readable storage media above may include volatile memory, such as random access memory; non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; combinations of the above categories of memory may also be included.
The processor referred to above may also be referred to collectively as a plurality of processing elements. For example, the processor may be a central processing unit, but may also be other general purpose processors, digital signal processors, application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the like. A general-purpose processor may be a microprocessor, or may be any conventional processor or the like, or may be a special-purpose processor.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should also make changes, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. An air conditioner control method is applied to an air conditioner system, and the air conditioner system comprises the following steps:
a circulating loop is formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger through working medium pipes;
the electromagnetic valve, the electronic expansion valve, the one-way valve and the refrigerant heat exchange device are sequentially connected into a refrigerant heat exchange loop through a working medium pipe; the refrigerant heat exchange loop is connected between the exhaust pipe of the compressor and the throttling element, and the refrigerant heat exchange device exchanges heat with the outdoor heat exchanger;
the control method is characterized by comprising the following steps:
when the air conditioning system operates in a refrigeration mode and the ambient temperature is higher than a first environment temperature, opening an electromagnetic valve of the refrigerant heat exchange loop, and controlling the refrigeration heat exchange opening degree of the electronic expansion valve based on the temperature of an external coil pipe of the air conditioning system, so that a high-temperature refrigerant discharged by the compressor is throttled by the electronic expansion valve into a low-temperature refrigerant, and the low-temperature refrigerant enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger and then flows to the front end of the indoor heat exchanger through the one-way valve;
when the air conditioning system operates in a heating mode and the ambient temperature is lower than a second loop temperature, the electromagnetic valve of the refrigerant heat exchange loop is opened, and the heating heat exchange opening degree of the electronic expansion valve is controlled based on the temperature of the external coil pipe of the air conditioning system, so that high-temperature and high-pressure refrigerant discharged by the compressor enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger after being throttled and depressurized by the electronic expansion valve, and then flows to the front end of the throttling element through the one-way valve.
2. The air conditioning control method according to claim 1, wherein a cooling heat exchange opening or a heating heat exchange opening of the electronic expansion valve is controlled based on an external coil temperature of an air conditioning system by using:
psf = a × Te + b, where Psf is a cooling heat exchange opening or a heating heat exchange opening of the electronic expansion valve, a is an opening adjustment coefficient, b is an opening reference value, and Te is an external coil temperature.
3. The air conditioner control method according to claim 1, characterized by further comprising:
when the air conditioning system operates in a heating mode and the ambient temperature is lower than the lowest ring temperature, controlling the electronic expansion valve to be fully opened; wherein the lowest ring temperature is lower than the second ring temperature.
4. The air conditioning control method according to claim 2, characterized by further comprising:
setting an environment temperature interval;
different a and b are set for different ambient temperature intervals.
5. An air conditioning system comprising:
a circulating loop formed by sequentially connecting a compressor, a four-way valve, an outdoor heat exchanger, a throttling element and an indoor heat exchanger by a working medium pipe;
the electromagnetic valve, the electronic expansion valve, the one-way valve and the refrigerant heat exchange device are sequentially connected into a refrigerant heat exchange loop through a working medium pipe; the refrigerant heat exchange loop is connected between the exhaust pipe of the compressor and the throttling element, and the refrigerant heat exchange device exchanges heat with the outdoor heat exchanger;
characterized in that the system further comprises:
the high-temperature refrigeration control unit is used for opening an electromagnetic valve of the refrigerant heat exchange loop when the air conditioning system operates in a refrigeration mode and the ambient temperature is higher than a first ambient temperature, and controlling the refrigeration heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system, so that a high-temperature refrigerant discharged by the compressor is throttled by the electronic expansion valve into a low-temperature refrigerant, and the low-temperature refrigerant enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger and then flows to the front end of the indoor heat exchanger through the one-way valve;
and the low-temperature heating control unit is used for opening an electromagnetic valve of the refrigerant heat exchange loop when the air conditioning system operates in a heating mode and the environmental temperature is lower than a second loop temperature, and controlling the heating heat exchange opening of the electronic expansion valve based on the temperature of an external coil of the air conditioning system, so that high-temperature and high-pressure refrigerant discharged by the compressor enters the refrigerant heat exchange device to exchange heat with the outdoor heat exchanger after being throttled and depressurized by the electronic expansion valve, and then passes through the one-way valve to the front end of the throttling element.
6. The air conditioning system of claim 5, further comprising:
the expansion valve opening control unit is used for calculating the refrigeration heat exchange opening of the electronic expansion valve by adopting Psf = a × Te + b and sending the refrigeration heat exchange opening to the high-temperature refrigeration control unit; or calculating the heating heat exchange opening of the electronic expansion valve by adopting Psf = a × Te + b, and sending the heating heat exchange opening to the low-temperature heating control unit;
wherein Psf is the refrigeration/heating heat exchange opening of the electronic expansion valve, a is an opening adjustment coefficient, b is an opening reference value, and Te is the temperature of the external coil.
7. The air conditioning system of claim 5, wherein the low temperature heating control unit is further configured to control the electronic expansion valve to be fully opened when the ambient temperature is lower than the lowest ambient temperature; wherein the lowest ring temperature is lower than the second ring temperature.
8. The air conditioning system of claim 6, wherein the expansion valve opening control unit is further configured to:
setting an environment temperature interval;
different a and b are set for different ambient temperature intervals.
9. The air conditioning system as claimed in claim 5, wherein the refrigerant heat exchanging device is composed of a heat conducting plate and a pipeline.
10. The air conditioning system of claim 9, wherein the thermally conductive plate is an aluminum plate.
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Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0914778A (en) * | 1995-06-30 | 1997-01-17 | Yamaha Motor Co Ltd | Air conditioner |
| JP2000052755A (en) * | 1998-08-05 | 2000-02-22 | Calsonic Corp | Air-conditioning and heating equipment for automobile |
| JP2002228275A (en) * | 2001-01-31 | 2002-08-14 | Mitsubishi Heavy Ind Ltd | Supercritical steam compression refrigerating cycle |
| CN1825032A (en) * | 2005-02-21 | 2006-08-30 | 海尔集团公司 | Method for increasing refrigerating quantity and reducing power of air conditioner and air conditioning device |
| CN1908556A (en) * | 2006-08-31 | 2007-02-07 | 黄麦 | Refrigerating air conditioner in high temperature working condition |
| CN101871675A (en) * | 2009-04-24 | 2010-10-27 | 日立空调·家用电器株式会社 | Air conditioner |
| TW201122382A (en) * | 2009-12-31 | 2011-07-01 | Kai-Wen Xu | Heat pump assembly assisted in driving by expansion kinetic energy of coolant. |
| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN103256748A (en) * | 2011-12-12 | 2013-08-21 | 三星电子株式会社 | Air conditioner |
| CN104089427A (en) * | 2014-06-24 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104501302A (en) * | 2014-11-21 | 2015-04-08 | 华中科技大学 | Cabinet air conditioner and control method thereof |
| CN104879945A (en) * | 2015-06-26 | 2015-09-02 | 珠海格力电器股份有限公司 | Air conditioning system and heat pump unit |
| CN205678790U (en) * | 2016-06-03 | 2016-11-09 | 海信（山东）空调有限公司 | A kind of frequency-variable air conditioner outdoor machine circuit board radiating device and electric-controlled box |
| CN205939467U (en) * | 2016-08-19 | 2017-02-08 | 广东美的暖通设备有限公司 | Multi -split air conditioning system |
| CN106403118A (en) * | 2016-11-30 | 2017-02-15 | 广东美的制冷设备有限公司 | High-temperature refrigeration air conditioner system and control method thereof |
| CN106482303A (en) * | 2016-11-25 | 2017-03-08 | 广州华凌制冷设备有限公司 | A kind of air-conditioner and its refrigeration control method |
| CN106871485A (en) * | 2017-04-13 | 2017-06-20 | 青岛海信日立空调系统有限公司 | A kind of heat pump and its control method |
| CN206281239U (en) * | 2016-11-28 | 2017-06-27 | 广州华凌制冷设备有限公司 | A kind of air-conditioner |
| CN107084562A (en) * | 2017-04-13 | 2017-08-22 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner and air conditioner |
| CN206440040U (en) * | 2016-12-26 | 2017-08-25 | 广州华凌制冷设备有限公司 | A kind of high-temperature refrigeration air-conditioning system |
| CN107687715A (en) * | 2017-07-28 | 2018-02-13 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN108119953A (en) * | 2017-12-19 | 2018-06-05 | 广东美的制冷设备有限公司 | Splitting heat pump air conditioner device |
| CN108954993A (en) * | 2018-10-08 | 2018-12-07 | 珠海格力电器股份有限公司 | Refrigeration cycle system and air conditioner |
| CN109654597A (en) * | 2019-02-19 | 2019-04-19 | 南京天加环境科技有限公司 | A kind of air-conditioning system that can adjust heat exchange amount |
| CN109855234A (en) * | 2018-11-12 | 2019-06-07 | 青岛海尔空调器有限总公司 | Air conditioner and its heat-production control method |
| CN109900039A (en) * | 2017-12-08 | 2019-06-18 | 合肥华凌股份有限公司 | Pipe-line system and refrigerator for refrigerator |
| CN210638320U (en) * | 2019-07-30 | 2020-05-29 | 青岛海尔空调器有限总公司 | Air conditioner |
| CN210891939U (en) * | 2019-09-20 | 2020-06-30 | 青岛海尔空调器有限总公司 | Outdoor unit condenser, outdoor unit and variable frequency air conditioner |
| JP2020153604A (en) * | 2019-03-20 | 2020-09-24 | ダイキン工業株式会社 | Refrigeration cycle device |
| CN214701009U (en) * | 2020-12-30 | 2021-11-12 | 南阳市中通防爆电机电器有限公司 | Ultra-high temperature explosion-proof air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4122349B2 (en) * | 2004-06-24 | 2008-07-23 | 三星電子株式会社 | Refrigeration cycle apparatus and operation method thereof |
-
2021
- 2021-11-17 CN CN202111361339.0A patent/CN114198857B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0914778A (en) * | 1995-06-30 | 1997-01-17 | Yamaha Motor Co Ltd | Air conditioner |
| JP2000052755A (en) * | 1998-08-05 | 2000-02-22 | Calsonic Corp | Air-conditioning and heating equipment for automobile |
| JP2002228275A (en) * | 2001-01-31 | 2002-08-14 | Mitsubishi Heavy Ind Ltd | Supercritical steam compression refrigerating cycle |
| CN1825032A (en) * | 2005-02-21 | 2006-08-30 | 海尔集团公司 | Method for increasing refrigerating quantity and reducing power of air conditioner and air conditioning device |
| CN1908556A (en) * | 2006-08-31 | 2007-02-07 | 黄麦 | Refrigerating air conditioner in high temperature working condition |
| CN101871675A (en) * | 2009-04-24 | 2010-10-27 | 日立空调·家用电器株式会社 | Air conditioner |
| TW201122382A (en) * | 2009-12-31 | 2011-07-01 | Kai-Wen Xu | Heat pump assembly assisted in driving by expansion kinetic energy of coolant. |
| CN103256748A (en) * | 2011-12-12 | 2013-08-21 | 三星电子株式会社 | Air conditioner |
| CN102889641A (en) * | 2012-09-12 | 2013-01-23 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment and control method |
| CN104089427A (en) * | 2014-06-24 | 2014-10-08 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104501302A (en) * | 2014-11-21 | 2015-04-08 | 华中科技大学 | Cabinet air conditioner and control method thereof |
| CN104879945A (en) * | 2015-06-26 | 2015-09-02 | 珠海格力电器股份有限公司 | Air conditioning system and heat pump unit |
| CN205678790U (en) * | 2016-06-03 | 2016-11-09 | 海信（山东）空调有限公司 | A kind of frequency-variable air conditioner outdoor machine circuit board radiating device and electric-controlled box |
| CN205939467U (en) * | 2016-08-19 | 2017-02-08 | 广东美的暖通设备有限公司 | Multi -split air conditioning system |
| CN106482303A (en) * | 2016-11-25 | 2017-03-08 | 广州华凌制冷设备有限公司 | A kind of air-conditioner and its refrigeration control method |
| CN206281239U (en) * | 2016-11-28 | 2017-06-27 | 广州华凌制冷设备有限公司 | A kind of air-conditioner |
| CN106403118A (en) * | 2016-11-30 | 2017-02-15 | 广东美的制冷设备有限公司 | High-temperature refrigeration air conditioner system and control method thereof |
| CN206440040U (en) * | 2016-12-26 | 2017-08-25 | 广州华凌制冷设备有限公司 | A kind of high-temperature refrigeration air-conditioning system |
| CN107084562A (en) * | 2017-04-13 | 2017-08-22 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner and air conditioner |
| CN106871485A (en) * | 2017-04-13 | 2017-06-20 | 青岛海信日立空调系统有限公司 | A kind of heat pump and its control method |
| CN107687715A (en) * | 2017-07-28 | 2018-02-13 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN109900039A (en) * | 2017-12-08 | 2019-06-18 | 合肥华凌股份有限公司 | Pipe-line system and refrigerator for refrigerator |
| CN108119953A (en) * | 2017-12-19 | 2018-06-05 | 广东美的制冷设备有限公司 | Splitting heat pump air conditioner device |
| CN108954993A (en) * | 2018-10-08 | 2018-12-07 | 珠海格力电器股份有限公司 | Refrigeration cycle system and air conditioner |
| CN109855234A (en) * | 2018-11-12 | 2019-06-07 | 青岛海尔空调器有限总公司 | Air conditioner and its heat-production control method |
| CN109654597A (en) * | 2019-02-19 | 2019-04-19 | 南京天加环境科技有限公司 | A kind of air-conditioning system that can adjust heat exchange amount |
| JP2020153604A (en) * | 2019-03-20 | 2020-09-24 | ダイキン工業株式会社 | Refrigeration cycle device |
| CN210638320U (en) * | 2019-07-30 | 2020-05-29 | 青岛海尔空调器有限总公司 | Air conditioner |
| CN210891939U (en) * | 2019-09-20 | 2020-06-30 | 青岛海尔空调器有限总公司 | Outdoor unit condenser, outdoor unit and variable frequency air conditioner |
| CN214701009U (en) * | 2020-12-30 | 2021-11-12 | 南阳市中通防爆电机电器有限公司 | Ultra-high temperature explosion-proof air conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 基于电子膨胀阀控制的热气除霜实验研究;王春;《家电科技》;20190201(第01期);62-65 * |
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