CN116465026A - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
CN116465026A
CN116465026A CN202310437387.6A CN202310437387A CN116465026A CN 116465026 A CN116465026 A CN 116465026A CN 202310437387 A CN202310437387 A CN 202310437387A CN 116465026 A CN116465026 A CN 116465026A
Authority
CN
China
Prior art keywords
auxiliary
air conditioner
heat exchanger
branch
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310437387.6A
Other languages
Chinese (zh)
Inventor
许浩
易博
杨亚华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing TICA Climate Solutions Co Ltd
Original Assignee
Nanjing TICA Climate Solutions Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing TICA Climate Solutions Co Ltd filed Critical Nanjing TICA Climate Solutions Co Ltd
Priority to CN202310437387.6A priority Critical patent/CN116465026A/en
Publication of CN116465026A publication Critical patent/CN116465026A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/16—Arrangement or mounting thereof
    • 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
    • F24F1/10—Arrangement or mounting thereof
    • 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
    • F24F1/26—Refrigerant piping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The invention discloses an air conditioner. The air conditioner includes: the outdoor unit of the air conditioner comprises a plurality of outdoor units of the air conditioner, wherein the outdoor units of the air conditioner are connected in parallel, each outdoor unit of the air conditioner comprises a heat exchanger branch and an auxiliary control valve, and the heat exchanger branch comprises an outdoor heat exchanger; the auxiliary pipelines are connected with the plurality of air conditioner outdoor units through the auxiliary pipelines, and the auxiliary control valve is used for controlling the on-off state between the corresponding heat exchanger branch and the auxiliary pipeline. According to the air conditioner, the on-off of the heat exchanger branch and the auxiliary pipeline is controlled through the auxiliary control valve, and the outdoor heat exchanger of the air conditioner outdoor unit in a stop state and the outdoor heat exchanger of the air conditioner outdoor unit in an operation state can participate in heat exchange of the air conditioner through the auxiliary pipeline, so that the heat exchange efficiency of the air conditioner can be improved.

Description

Air conditioner
Technical Field
The invention relates to the technical field of air conditioning systems, in particular to an air conditioner.
Background
When the air conditioning system operates, such as a multi-split air conditioner, the multi-split air conditioner is generally composed of a plurality of air conditioning outdoor units and a plurality of air conditioning indoor units, the number of the air conditioning outdoor units started is often set according to the requirements of the air conditioning indoor units, namely, part of the air conditioning outdoor units are in an operation state, and part of the air conditioning outdoor units are in a shutdown state, at the moment, heat exchangers of the air conditioning outdoor units in the shutdown state cannot participate in system heat exchange, and the heat exchange efficiency of the air conditioning system is low.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the invention provides the air conditioner, which can improve the heat exchange efficiency.
An air conditioner according to an embodiment of the present invention includes: the outdoor unit of the air conditioner comprises a plurality of outdoor units of the air conditioner, wherein the outdoor units of the air conditioner are connected in parallel, each outdoor unit of the air conditioner comprises a heat exchanger branch and an auxiliary control valve, and the heat exchanger branch comprises an outdoor heat exchanger; the auxiliary pipelines are connected with the plurality of air conditioner outdoor units through the auxiliary pipelines, and the auxiliary control valve is used for controlling the on-off state between the corresponding heat exchanger branch and the auxiliary pipeline.
According to the air conditioner disclosed by the embodiment of the invention, the on-off between the heat exchanger branch and the auxiliary pipeline is controlled through the auxiliary control valve, and the outdoor heat exchanger of the air conditioner outdoor unit in a stop state and the outdoor heat exchange of the air conditioner outdoor unit in an operation state can participate in the heat exchange of the air conditioner through the auxiliary pipeline, so that the heat exchange efficiency of the air conditioner can be improved.
According to some embodiments of the invention, each air conditioning outdoor unit includes a compressor branch including a compressor, and a main control valve disposed at a junction of the compressor branch and the heat exchanger branch, the main control valve being a multi-way valve and being configured to control a flow direction of a medium in the compressor branch and the heat exchanger branch.
According to some embodiments of the invention, the air conditioner comprises an air pipe and a liquid pipe, the heat exchanger branches of the plurality of air conditioner outdoor units are all connected with the liquid pipe, and the main control valves of the plurality of air conditioner outdoor units are all connected with the air pipe.
According to some embodiments of the invention, the main control valve is a four-way valve and comprises a first main interface, a second main interface, a third main interface and a fourth main interface, one end of the compressor branch is connected with the first main interface, the other end of the compressor branch is connected with the third main interface, the heat exchanger branch is connected with the second main interface, the air pipe is connected with the fourth main interface, and the first main interface is selectively communicated with the second main interface or the fourth main interface.
According to some embodiments of the invention, the auxiliary control valve is a multi-way valve and at least comprises a first auxiliary interface, a second auxiliary interface and a third auxiliary interface, one end of the heat exchanger branch is connected with the first auxiliary interface, the outdoor heat exchanger is positioned between the liquid pipe and the junction of the heat exchanger branch and the first auxiliary interface, the second auxiliary interface is connected with the auxiliary pipeline, and when the first auxiliary interface is connected with the second auxiliary interface, the auxiliary control valve is used for controlling the corresponding heat exchanger branch to be connected with the auxiliary pipeline.
According to some embodiments of the invention, the third auxiliary port is further connected to the air pipe, and the auxiliary control valve is configured to control the corresponding heat exchanger branch to be disconnected from the auxiliary pipeline when the first auxiliary port is connected to the third auxiliary port.
According to some embodiments of the invention, the heat exchanger branch further comprises an electronic expansion valve, which is arranged between the outdoor heat exchanger and the liquid pipe.
According to some embodiments of the invention, the compressor branch further comprises a gas-liquid separator disposed between the compressor and the third main interface, and a discharge check valve disposed between the compressor and the first main interface and forming a passageway from the compressor to the first main interface.
According to some embodiments of the invention, the heat exchanger branch further comprises a fan for blowing air to the outdoor heat exchanger.
According to some embodiments of the invention, the auxiliary pipeline comprises an auxiliary main pipeline and a plurality of auxiliary branches, the auxiliary branches are communicated with the auxiliary main pipeline, and the air conditioner outdoor units are in one-to-one correspondence with the auxiliary branches.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic view of an air conditioner outdoor unit of an air conditioner in a cooling state according to an embodiment of the present invention;
fig. 2 is a schematic view of an air conditioner in a cooling state according to an embodiment of the present invention;
fig. 3 is a schematic view of an air conditioner in a heating state according to an embodiment of the present invention;
fig. 4 is a schematic view of an air conditioner outdoor unit in a heating state according to an embodiment of the present invention.
Reference numerals: the air conditioner 100, the first air conditioning outdoor unit 01, the second air conditioning outdoor unit 02, the third air conditioning outdoor unit 03, the fourth air conditioning outdoor unit 04, the heat exchanger branch 10, the outdoor heat exchanger 11, the fan 12, the electronic expansion valve 13, the auxiliary pipeline 20, the auxiliary control valve 21, the first auxiliary port E, the second auxiliary port F, the third auxiliary port G, the fourth auxiliary port H, the auxiliary main path 201, the auxiliary branch 202, the compressor branch 30, the compressor 31, the main control valve 32, the gas-liquid separator 33, the exhaust check valve 34, the first main port a, the second main port B, the third main port C, the fourth main port D, the gas pipe 40, and the liquid pipe 50.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
An air conditioner 100 according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 4.
Referring to fig. 1 to 4, an air conditioner 100 according to an embodiment of the present invention may include an air conditioner outdoor unit and an auxiliary duct 20. The plurality of air conditioner outdoor units are connected in parallel. Alternatively, the air conditioner 100 according to the embodiment of the present invention may include two, three, or four air conditioning outdoor units, and when some air conditioning outdoor units are operated, another air conditioning outdoor unit may be in a shutdown state, and of course, all the air conditioning outdoor units may be in an operation state. In the specific example shown in fig. 2 to 3, the air conditioner 100 includes a first air conditioner outdoor unit 01, a second air conditioner outdoor unit 02, a third air conditioner outdoor unit 03, and a fourth air conditioner outdoor unit 04, which are connected in parallel.
In some embodiments, the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 may be in a stopped state when the first air-conditioning outdoor unit 01 and the second air-conditioning outdoor unit 02 are operated. The second air-conditioning outdoor unit 02, the third air-conditioning outdoor unit 03, and the fourth air-conditioning outdoor unit 04 may be in a stopped state when the first air-conditioning outdoor unit 01 is operated.
Each air conditioner outdoor unit includes a heat exchanger branch 10 and an auxiliary control valve 21, and the heat exchanger branch 10 may include an outdoor heat exchanger 11. The plurality of air conditioning outdoor units are also connected through auxiliary pipelines 20, and auxiliary control valves 21 are used for controlling the on-off of the corresponding heat exchanger branch 10 and the auxiliary pipelines 20. Optionally, the auxiliary control valve 21 of the air conditioning outdoor unit in the running state controls the heat exchanger branch 10 corresponding to the air conditioning outdoor unit to be communicated with the auxiliary pipeline 20, and the auxiliary control valve 21 of the air conditioning outdoor unit in the stopping state controls the heat exchanger branch 10 corresponding to the air conditioning outdoor unit to be communicated with the auxiliary pipeline 20, so that the outdoor heat exchanger 11 of the air conditioning outdoor unit in the stopping state and the outdoor heat exchanger 11 of the air conditioning outdoor unit in the running state can participate in heat exchange of the air conditioner 100 together, and the heat exchange efficiency of the air conditioner 100 is improved.
According to the air conditioner 100 of the embodiment of the invention, the auxiliary control valve 21 controls the on-off state between the heat exchanger branch 10 and the auxiliary pipeline 20, and the outdoor heat exchanger 11 of the air conditioner outdoor unit in a stop state and the outdoor heat exchanger 11 of the air conditioner outdoor unit in an operation state can participate in heat exchange of the air conditioner 100 together through the auxiliary pipeline 20, so that the heat exchange efficiency of the air conditioner 100 can be improved.
In some embodiments of the present invention, referring to fig. 1 to 4, each air conditioner outdoor unit may include a compressor branch 30 and a main control valve 32, the compressor branch 30 including a compressor 31, the main control valve 32 being disposed at a junction of the compressor branch 30 and the heat exchanger branch 10, the main control valve 32 being a multi-way valve and being used to control a flow direction of a medium in the compressor branch 30 and the heat exchanger branch 10. Alternatively, when the air conditioner 100 is in a cooling state, the compressor 31 discharges high-temperature and high-pressure gas, and the main control valve 32 causes the compressor branch 30 to communicate with the heat exchanger branch 10, and the high-temperature and high-pressure gas enters the outdoor heat exchanger 11 to emit heat, and the high-temperature and high-pressure gas condenses into a medium-temperature liquid. When the air conditioner 100 is in a heating state, the compressor 31 discharges high-temperature and high-pressure air, and the main control valve 32 enables the compressor 31 to be communicated with the air conditioning indoor unit, and the high-temperature and high-pressure air enters the air conditioning indoor unit.
In some embodiments of the present invention, referring to fig. 2 to 3, the air conditioner 100 may include an air pipe 40 and a liquid pipe 50, the heat exchanger branches 10 of a plurality of air conditioner outdoor units are connected to the liquid pipe 50, and the main control valves 32 of the plurality of air conditioner outdoor units are connected to the air pipe 40. Alternatively, the high temperature and high pressure liquid enters the outdoor unit of the air conditioner to emit heat, and the generated medium temperature liquid flows out through the liquid pipe 50. The main control valve 32 is used to control the on-off of the air pipe 40.
In some embodiments of the present invention, referring to fig. 1-4, the main control valve 32 is a four-way valve and includes a first main port a, a second main port B, a third main port C, and a fourth main port D, one end of the compressor branch 30 is connected to the first main port a, the other end of the compressor branch 30 is connected to the third main port C, the heat exchanger branch 10 is connected to the second main port B, the air pipe 40 is connected to the fourth main port D, and the first main port a is selectively connected to the second main port B or the fourth main port D.
When the air conditioner 100 is in a refrigeration state, as shown in fig. 1 and 2, the first main interface a is communicated with the second main interface B, and the third main interface C is communicated with the fourth main interface D, so that the compressor branch 30 is communicated with the heat exchanger branch 10, high-temperature and high-pressure air discharged from the compressor 31 flows into the outdoor heat exchanger 11 through the main control valve 32 to generate exothermic reaction, emit heat, the high-temperature and high-pressure air is condensed into medium-temperature liquid, and enters the indoor unit of the air conditioner through the liquid pipe 50 to perform throttling heat exchange, low-temperature and low-pressure air is formed, and the air returns to the compressor 31 through the fourth main interface D and the third main interface C of the main control valve 32 through the air pipe 40, so that one cycle is completed.
When the air conditioner 100 is in a heating state, as shown in fig. 3 and 4, the first main interface a communicates with the fourth main interface D, the second main interface B communicates with the third main interface C, the compressor 31 discharges high-temperature and high-pressure gas, and the high-temperature and high-pressure gas flows into the air conditioner indoor unit through the first main interface a, the fourth main interface D, and the air pipe 40. The high-temperature high-pressure gas entering the indoor unit of the air conditioner is condensed into a medium-temperature liquid refrigerant which exchanges heat in the outdoor heat exchanger 11 through the liquid pipe 50 to form low-temperature low-pressure refrigerating liquid, and the low-temperature low-pressure refrigerating liquid returns to the compressor 31 through the second main interface B and the third main interface C which are communicated, so that the circulation is completed.
In some embodiments of the present invention, referring to fig. 1-4, the auxiliary control valve 21 is a multi-way valve and at least includes a first auxiliary port E, a second auxiliary port F, and a third auxiliary port G, one end of the heat exchanger branch 10 is connected to the first auxiliary port E, the outdoor heat exchanger 11 is located between the connection portion of the heat exchanger branch 10 and the first auxiliary port E and the liquid pipe 50, the second auxiliary port F is connected to the auxiliary pipeline 20, and when the first auxiliary port E is connected to the second auxiliary port F, the auxiliary control valve 21 is used to control the corresponding heat exchanger branch 10 to be connected to the auxiliary pipeline 20. Optionally, the auxiliary control valve 21 is an auxiliary four-way valve, and the auxiliary four-way valve includes a first auxiliary interface E, a second auxiliary interface F, a third auxiliary interface G, and a fourth auxiliary interface H.
When the air conditioner 100 is in the cooling state, as shown in fig. 1 and 2, the high-temperature and high-pressure gas refrigerant of the air conditioner outdoor unit in the running state passes through the corresponding auxiliary control valve 21, the auxiliary pipeline 20 and the auxiliary control valve 21 in the shutdown state, and enters the heat exchanger branch 10 of the air conditioner outdoor unit in the shutdown state, and the high-temperature and high-pressure gas refrigerant releases heat to generate low-temperature and low-pressure liquid and flows into the liquid pipe 50 together.
Alternatively, as shown in fig. 2, the first air-conditioning outdoor unit 01 and the second air-conditioning outdoor unit 02 are in an operating state, and the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 are in a stopped state. The high-temperature and high-pressure gas refrigerant flowing out of the compressor 31 in the first air-conditioning outdoor unit 01 enters the auxiliary pipeline 20 through the first main interface A and the second main interface B of the main control valve 32 and the first auxiliary interface E and the second auxiliary interface F of the auxiliary control valve 21, the first auxiliary interface E and the second auxiliary interface F of the auxiliary control valve 21 of the third air-conditioning outdoor unit 03 are communicated, and part of the high-temperature and high-pressure gas refrigerant flowing into the auxiliary pipeline 20 flows into the heat exchanger branch 10 of the third air-conditioning outdoor unit 03, so that the third air-conditioning outdoor unit 03 can participate in heat exchange of the first air-conditioning outdoor unit 01, and the heat exchange efficiency of the air-conditioning unit 100 is improved.
Similarly, as shown in fig. 2, the high-temperature and high-pressure gas refrigerant flowing out of the second air-conditioning outdoor unit 02 enters the auxiliary pipeline 20 through the first main port a and the second main port B of the main control valve 32 and the first auxiliary port E and the second auxiliary port F of the auxiliary control valve 21, and communicates the first auxiliary port E and the second auxiliary port F of the auxiliary control valve 21 of the fourth air-conditioning outdoor unit 04, and part of the high-temperature and high-pressure gas refrigerant flowing into the auxiliary pipeline 20 flows into the heat exchanger branch 10 of the fourth air-conditioning outdoor unit 04, so that the fourth air-conditioning outdoor unit 04 can participate in the heat exchange of the second air-conditioning outdoor unit 02, and the heat exchange efficiency of the air-conditioning 100 is improved.
Of course, the high-temperature and high-pressure gas refrigerant flowing out of the compressor 31 in the first air-conditioning outdoor unit 01 may flow into the heat exchanger branch 10 of the fourth air-conditioning outdoor unit 04 through the auxiliary line 20, and the high-temperature and high-pressure gas refrigerant flowing out of the compressor 31 in the second air-conditioning outdoor unit 02 may flow into the heat exchanger branch 10 of the third air-conditioning outdoor unit 03 through the auxiliary line 20.
When the air conditioner 100 is in a heating state, as shown in fig. 3, the medium temperature liquid refrigerant flowing out of the air conditioner indoor unit in an operation state flows into the outdoor heat exchanger 11 of the air conditioner outdoor unit in a stop state through the liquid pipe 50 to exchange heat, forms a low temperature low pressure gas refrigerant, and then enters the air conditioner outdoor unit in the operation state through the auxiliary control valve 21 and the auxiliary pipeline 20.
Alternatively, as shown in fig. 3 and 4, the first air-conditioning outdoor unit 01 and the second air-conditioning outdoor unit 02 are in an operating state, and the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 are in a stopped state. The first auxiliary port E and the second auxiliary port F of the auxiliary control valves 21 of the first air-conditioning outdoor unit 01, the second air-conditioning outdoor unit 02, the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 are communicated, medium-temperature liquid refrigerant formed by the air-conditioning indoor units flows into the heat exchanger branches 10 of the first air-conditioning outdoor unit 01 to the fourth air-conditioning outdoor unit 04 through the liquid pipe 50, the outdoor heat exchangers 11 of the first air-conditioning outdoor unit 01 to the fourth air-conditioning outdoor unit 04 participate in heat exchange to form low-temperature low-pressure gas refrigerant, and the low-temperature low-pressure gas refrigerant formed by the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 enters the auxiliary pipeline 20 after passing through the first auxiliary port E and the second auxiliary port F of the corresponding auxiliary control valves 21 and finally enters the compressors 31 of the first air-conditioning outdoor unit 01 and the second air-conditioning outdoor unit 02. It can be seen that, by providing the auxiliary pipeline 20, the third air conditioning outdoor unit 03 and the fourth air conditioning outdoor unit 04 in the stopped state can also participate in the heat exchange of the air conditioner 100, thereby improving the heat exchange efficiency of the air conditioner 100.
In some embodiments of the present invention, as shown in fig. 1-3, the third auxiliary port G is further connected to the air pipe 40, and the auxiliary control valve 21 is used to control the corresponding heat exchanger branch 10 to be disconnected from the auxiliary pipeline 20 when the first auxiliary port E is connected to the third auxiliary port G. Optionally, after the heat exchanger branch 10 of the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 are disconnected from the auxiliary pipeline 20, the third air-conditioning outdoor unit 03 and the fourth air-conditioning outdoor unit 04 no longer participate in heat exchange of the air conditioner 100.
In some embodiments of the present invention, as shown in fig. 1-3, the heat exchanger branch 10 further comprises an electronic expansion valve 13, the electronic expansion valve 13 being arranged between the outdoor heat exchanger 11 and the liquid pipe 50. The electronic expansion valve 13 can regulate the flow of medium through the outdoor heat exchanger 11.
In some embodiments of the present invention, as shown in fig. 1-3, the compressor branch 30 further includes a gas-liquid separator 33 and a discharge check valve 34, the gas-liquid separator 33 being disposed between the compressor 31 and the third main port C, the discharge check valve 34 being disposed between the compressor 31 and the first main port a and forming a passage from the compressor 31 to the first main port a, while preventing the flow of refrigerant from the first main port a to the compressor 31. The gas-liquid separator 33 is used for gas-liquid separation, and the exhaust check valve 34 is used for controlling unidirectional medium circulation.
In some embodiments of the present invention, as shown in fig. 1-3, the heat exchanger branch 10 further includes a fan 12, the fan 12 being configured to blow air towards the outdoor heat exchanger 11, helping to accelerate heat exchange efficiency.
In some embodiments of the present invention, as shown in fig. 1-3, the auxiliary pipeline 20 includes an auxiliary main pipeline 201 and a plurality of auxiliary branches 202, the plurality of auxiliary branches 202 are all communicated with the auxiliary main pipeline 201, and the plurality of air conditioning outdoor units are in one-to-one correspondence with the plurality of auxiliary branches 202. Optionally, the first outdoor unit 01, the second outdoor unit 02, the third outdoor unit 03, and the fourth outdoor unit 04 are respectively connected to an auxiliary branch 202, one end of the auxiliary branch 202 is connected to the auxiliary main circuit 201, and one end is connected to the second auxiliary port F of the corresponding auxiliary control valve 21.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms are not necessarily directed 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. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. An air conditioner, comprising:
the outdoor unit of the air conditioner comprises a plurality of outdoor units of the air conditioner, wherein the outdoor units of the air conditioner are connected in parallel, each outdoor unit of the air conditioner comprises a heat exchanger branch circuit (10) and an auxiliary control valve (21), and the heat exchanger branch circuit (10) comprises an outdoor heat exchanger (11);
the auxiliary pipeline (20) is used for controlling the on-off of the corresponding heat exchanger branch (10) and the auxiliary pipeline (20), and the plurality of air conditioner outdoor units are connected through the auxiliary pipeline (20), and the auxiliary control valve (21) is used for controlling the on-off of the corresponding heat exchanger branch (10) and the auxiliary pipeline (20).
2. An air conditioner according to claim 1, wherein each air conditioner outdoor unit comprises a compressor branch (30) and a main control valve (32), the compressor branch (30) comprises a compressor (31), the main control valve (32) is arranged at the connection part of the compressor branch (30) and the heat exchanger branch (10), and the main control valve (32) is a multi-way valve and is used for controlling the medium flow direction in the compressor branch (30) and the heat exchanger branch (10).
3. An air conditioner according to claim 2, wherein the air conditioner includes an air pipe (40) and a liquid pipe (50), the heat exchanger branches (10) of the plurality of air conditioner outdoor units are all connected to the liquid pipe (50), and the main control valves (32) of the plurality of air conditioner outdoor units are all connected to the air pipe (40).
4. An air conditioner according to claim 3, wherein the main control valve (32) is a four-way valve and comprises a first main interface, a second main interface, a third main interface and a fourth main interface, one end of the compressor branch (30) is connected to the first main interface, the other end of the compressor branch (30) is connected to the third main interface, the heat exchanger branch (10) is connected to the second main interface, the air pipe (40) is connected to the fourth main interface, and the first main interface is selectively connected to the second main interface or the fourth main interface.
5. An air conditioner according to claim 3, wherein the auxiliary control valve (21) is a multi-way valve and comprises at least a first auxiliary interface, a second auxiliary interface and a third auxiliary interface, one end of the heat exchanger branch (10) is connected with the first auxiliary interface, the outdoor heat exchanger (11) is located between the connection of the heat exchanger branch (10) and the first auxiliary interface and the liquid pipe (50), the second auxiliary interface is connected with the auxiliary pipeline (20), and when the first auxiliary interface is connected with the second auxiliary interface, the auxiliary control valve (21) is used for controlling the corresponding heat exchanger branch (10) to be connected with the auxiliary pipeline (20).
6. An air conditioner according to claim 5, wherein the third auxiliary port is connected to the air pipe (40), and the auxiliary control valve (21) is configured to control the corresponding heat exchanger branch (10) to be disconnected from the auxiliary pipe (20) when the first auxiliary port is connected to the third auxiliary port.
7. An air conditioner according to claim 5, wherein the heat exchanger branch (10) further comprises an electronic expansion valve (13), the electronic expansion valve (13) being arranged between the outdoor heat exchanger (11) and the liquid pipe (50).
8. The air conditioner according to claim 4, wherein the compressor branch (30) further includes a gas-liquid separator (33) and a discharge check valve (34), the gas-liquid separator (33) being disposed between the compressor (31) and the third main interface, the discharge check valve (34) being disposed between the compressor (31) and the first main interface and forming a passage from the compressor (31) to the first main interface.
9. An air conditioner according to claim 1, wherein the heat exchanger branch (10) further comprises a fan (12), the fan (12) being adapted to blow air towards the outdoor heat exchanger (11).
10. The air conditioner according to claim 1, wherein the auxiliary line (20) includes an auxiliary main line (201) and a plurality of auxiliary branches (202), the plurality of auxiliary branches (202) are each in communication with the auxiliary main line (201), and the plurality of air conditioner outdoor units are in one-to-one correspondence with the plurality of auxiliary branches (202).
CN202310437387.6A 2023-04-21 2023-04-21 Air conditioner Pending CN116465026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310437387.6A CN116465026A (en) 2023-04-21 2023-04-21 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310437387.6A CN116465026A (en) 2023-04-21 2023-04-21 Air conditioner

Publications (1)

Publication Number Publication Date
CN116465026A true CN116465026A (en) 2023-07-21

Family

ID=87174975

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310437387.6A Pending CN116465026A (en) 2023-04-21 2023-04-21 Air conditioner

Country Status (1)

Country Link
CN (1) CN116465026A (en)

Similar Documents

Publication Publication Date Title
EP1655555A2 (en) Air conditioner
KR20040017603A (en) Multi-type air conditioner for cooling/heating the same time and method for controlling the same
CN105004090A (en) Multi-split air-conditioning system and supercooling and enhanced vapor injection method thereof
CN213841417U (en) Multi-split system
CN109140725B (en) Multi-split air conditioning system and defrosting control method thereof
CN109386985B (en) Two-pipe jet enthalpy-increasing outdoor unit and multi-split system
EP2157389B1 (en) Air conditioner comprising a heat exchanger
US11499727B2 (en) Air conditioning apparatus
CN112361669A (en) Multi-split system and control method thereof
EP1717522B1 (en) Air conditioner
CN109386989B (en) Two-pipe jet enthalpy-increasing outdoor unit and multi-split system
US20230152015A1 (en) Air conditioner
CN113994149A (en) Air conditioner
CN112577101A (en) Air conditioner and control method thereof
KR102337394B1 (en) Air Conditioner
CN116465026A (en) Air conditioner
CN109682105B (en) Air Conditioning System
CN112577103A (en) Multi-split air conditioner and control method thereof
KR101416939B1 (en) Outdoor heat exchanger
JP2017142027A (en) Air conditioning device
KR101160351B1 (en) Multi air conditioner and control method thereof
WO2019225005A1 (en) Heat exchanger and refrigeration cycle device
KR20200114123A (en) An air conditioning apparatus
CN215765436U (en) Air conditioner
US11397015B2 (en) Air conditioning apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination