CN105953482B - A kind of four-way valve and multi-split air conditioner for multi-split air conditioner - Google Patents
A kind of four-way valve and multi-split air conditioner for multi-split air conditioner Download PDFInfo
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- CN105953482B CN105953482B CN201610330011.5A CN201610330011A CN105953482B CN 105953482 B CN105953482 B CN 105953482B CN 201610330011 A CN201610330011 A CN 201610330011A CN 105953482 B CN105953482 B CN 105953482B
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- valve
- compressor
- valve port
- air conditioner
- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- 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
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
Abstract
The invention discloses a kind of four-way valves and multi-split air conditioner for multi-split air conditioner, are related to air-conditioning technical field, for solve prior art multi-split air conditioner need to use multiple four-way valves, problem at high cost and complicated pipeline jointing construction and invent.The present invention is used for the four-way valve of multi-split air conditioner, including main valve body, valve chamber is equipped in main valve body, main valve body offers the compressor air-discharging valve port being connected to valve chamber, condenser valve port, evaporator valve port and compressor return air valve port, compressor air-discharging valve port and compressor return air valve port are multiple, multiple compressor air-discharging valve ports are used to connect one to one with the gas exhaust piping of multiple compressors, condenser valve port with the external pipeline of condenser for connecting, evaporator valve port with the external pipeline of multiple evaporators for connecting, multiple compressor return air valve ports are used to connect one to one with the return line of multiple compressors.Four-way valve of the present invention for multi-split air conditioner circulates for realizing the commutation of refrigerant in air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to it is a kind of drag for the four-way valve of multi-split air conditioner and one it is mostly empty
Adjust device.
Background technique
Four-way valve is a kind of common control valve of air-conditioning refrigeration system, commonly used in realizing the commutation of refrigerant in air conditioner
Circulation.
Referring to Fig.1, by taking the pipeline jointing construction of air conditioner with surplus indoor unit as an example, including 2 compressors 01, wherein compressor
011 exhaust outlet pipeline is connect with the exhaust outlet of compressor 021 of four-way valve 02, the gas returning port pipeline and four-way valve of compressor 011
02 compressor return air mouth 024 connects；The exhaust outlet pipeline of compressor 012 and the exhaust outlet of compressor 031 of four-way valve 03, compression
The gas returning port pipeline of machine 012 is connect with the compressor return air mouth 034 of four-way valve 03；Condenser 04, throttle part 05 and 2 evaporation
Device 06 is sequentially connected in series, wherein evaporator 061 and evaporator 062 are parallel with one another, and the external pipeline difference of 04 one end of condenser
Connect with the condenser valve port 032 of the condenser valve port 022 of four-way valve 02 and four-way valve 03, the external pipeline of evaporator 061 with
The evaporator valve port 023 of four-way valve 02 connects, and the external pipeline of evaporator 062 is connect with the evaporator valve port 033 of four-way valve 03.
When air conditioner is freezed, arrow direction shown in Fig. 1 is the flow direction of refrigerant, the system being discharged in compressor 011
Cryogen is discharged through the compressor air-discharging valve port 021 in four-way valve 02 from condenser valve port 022, then from evaporator valve port 023 through pressing
Contracting machine return-air valve port 024 returns in compressor 011, and the refrigerant flow direction of compressor 012 is identical as compressor 011；Work as sky
When device being adjusted to be heated, four-way valve 03 commutates with four-way valve 02, and the refrigerant being discharged in compressor 011 is through in four-way valve 02
Compressor air-discharging valve port 021 is discharged from evaporator valve port 023, then returns to from condenser valve port 022 through compressor return air valve port 024
In compressor 011, the refrigerant flow direction of compressor 012 is identical as compressor 011.
Above-mentioned air conditioner with surplus indoor unit respectively controls the flowing side of a compressor institute discharging refrigerant by two four-way valves
To for multi-split air conditioner, then needing to correspond control using multiple four-way valve from each compressor discharging refrigerant
Flow direction, thus realize the refrigeration and heat-production functions of air conditioner, but the quantity that four-way valve uses is more, not only makes to be produced into
This is higher, and needs more each refrigeration part of piping connection, causes the pipeline jointing construction of air conditioner more complex.
Summary of the invention
The embodiment of the present invention provides a kind of four-way valve and multi-split air conditioner for multi-split air conditioner, can solve existing
There is multi-split air conditioner in technology need to be using multiple four-way valves, problem at high cost and complicated pipeline jointing construction.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
A kind of four-way valve for multi-split air conditioner, including main valve body, the main valve body is interior to be equipped with valve chamber, the main valve
The compressor air-discharging valve port being connected to the valve chamber, condenser valve port, evaporator valve port and compressor return air are offered on body
Valve port, the compressor air-discharging valve port and the compressor return air valve port be it is multiple, multiple compressor air-discharging valve ports are used for
It connecting one to one with the gas exhaust piping of multiple compressors, the condenser valve port is used to connect with the external pipeline of condenser,
The evaporator valve port for connect with the external pipeline of multiple evaporators, multiple compressor return air valve ports for it is multiple
The return line of compressor connects one to one.
The invention also discloses a kind of multi-split air conditioner, including multiple compressors and multiple evaporators, throttle part with
And condenser, the condenser, the throttle part and multiple evaporators are sequentially connected in series, multiple evaporators are mutually simultaneously
Connection, also include the above-mentioned four-way valve for multi-split air conditioner, multiple compressor air-discharging valve ports of the four-way valve and
The gas exhaust piping of multiple compressors connects one to one, and the external pipeline of the condenser valve port and the condenser connects
Connect, the evaporator valve port is connect with the external pipeline of multiple evaporators, multiple compressor return air valve ports with it is multiple
The return line of the compressor connects one to one.
Four-way valve and multi-split air conditioner provided in an embodiment of the present invention for multi-split air conditioner, due to four-way valve master
The compressor air-discharging valve port and compressor return air valve port opened up on valve body be it is multiple so that the gas exhaust piping of multiple compressors can be straight
Connect and connect one to one respectively with multiple compressor air-discharging valve ports, the return lines of multiple compressors can respectively with multiple compressors
Return-air valve port connects one to one, the external pipeline connection of condenser valve port and condenser, evaporator valve port and multiple evaporators
External pipeline connection.Because being the flowing side that can control multiple compressor air-discharging pipeline inner refrigerants only with a four-way valve
To the gas exhaust piping and return line of multiple compressors connect after can directly converging in a four-way valve with condenser or evaporator
Connect, be not required to more other external pipelines, so, the embodiment of the present invention solve multi-split air conditioner in the prior art need to use it is more
A four-way valve, problem at high cost and complicated pipeline jointing construction.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the piping connection schematic diagram of multi-split air conditioner in the prior art；
Fig. 2 is one of the structural schematic diagram of four-way valve that the embodiment of the present invention is used for multi-split air conditioner；
Fig. 3 is second structural representation of the embodiment of the present invention for the four-way valve of multi-split air conditioner；
Fig. 4 is third structural representation of the embodiment of the present invention for the four-way valve of multi-split air conditioner；
Fig. 5 is the four of the structural schematic diagram for the four-way valve that the embodiment of the present invention is used for multi-split air conditioner；
Fig. 6 is pipeline jointing construction schematic diagram when multi-split air conditioner of the embodiment of the present invention is freezed；
Fig. 7 is pipeline jointing construction schematic diagram when multi-split air conditioner of the embodiment of the present invention is heated；
Fig. 8 is the schematic illustration of four-way valve core when multi-split air conditioner of the embodiment of the present invention is freezed；
Fig. 9 is the schematic illustration of four-way valve core when multi-split air conditioner of the embodiment of the present invention is heated.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Four-way valve is common a kind of control valve in air conditioner, and the structure of four-way valve includes main valve body, and main valve body is equipped with
The compressor air-discharging valve port being connect for the gas exhaust piping with compressor, the condenser being connect for the external pipeline with condenser
Valve port, the evaporator valve port connecting for the external pipeline with evaporator and for the return-air valve port with compressor, pass through master
The movement of valve body inner spool, switches the flow direction of refrigerant, to realize the refrigeration or heat-production functions of air-conditioning.
A kind of four-way valve 2 for multi-split air conditioner of the embodiment of the present invention, including the internal main valve body for being equipped with valve chamber 22
21, offer on main valve body 21 the compressor air-discharging valve port 23, condenser valve port 24, evaporator valve port 25 that are connected to valve chamber 22 with
And compressor return air valve port 26, wherein compressor air-discharging valve port 23 with the gas exhaust piping of compressor for connecting, condenser valve port
24 with the external pipeline of condenser for connecting, and external pipeline of the evaporator valve port 25 for multiple evaporators connects, compressor
Return-air valve port 26 with the return line of compressor for connecting.Particularly, compressor air-discharging valve port 23 and compressor return air valve port
26 is multiple, and multiple compressor air-discharging valve ports 23 can be used for connecting one to one with the gas exhaust piping of multiple compressors, multiple pressures
Contracting machine return-air valve port 26 can be used for connecting one to one with the return line of multiple compressors, as figures 2-6.
Four-way valve provided in an embodiment of the present invention for multi-split air conditioner, due to the compression opened up on main valve body 21
Machine exhaust valve port 23 and compressor return air valve port 26 be it is multiple so that the gas exhaust piping of multiple compressors can directly respectively with it is multiple
Compressor air-discharging valve port 23 connects one to one, the return lines of multiple compressors can respectively with multiple compressor return air valve ports 26
It connects one to one, condenser valve port 24 is connect with the external pipeline of condenser, and evaporator valve port 25 is outer with multiple evaporators
Connect piping connection.It is more because being the flow direction that can control multiple compressor air-discharging pipeline inner refrigerants only with a four-way valve
After the gas exhaust piping and return line of a compressor can directly converge in a four-way valve, so, the embodiment of the present invention solves
Multi-split air conditioner need to use multiple four-way valves, problem at high cost and complicated pipeline jointing construction in the prior art.
Specifically, multiple compressor air-discharging valve ports 23 in the embodiment of the present invention independently of one another, are not connected to mutually, multiple pressures
Gas exhaust piping of the outer end of contracting machine exhaust valve port 23 respectively with multiple compressors connects one to one, multiple compressor air-discharging valve ports
23 inner end is connected to valve chamber 22 respectively, as shown in Figure 2 and Figure 5.Above-mentioned multiple compressor air-discharging valve ports are mutually independent, respectively
A compressor can enter in four-way valve from each compressor air-discharging valve port respectively, will not influence each other and cause the refrigeration of each branch
Agent air inflow is uneven.
In addition, the structure shape of another similar multi-pass pipe also can be used in the compressor air-discharging valve port in the embodiment of the present invention
Formula, the outer end of multiple compressor air-discharging valve ports 23 correspond company with the gas exhaust piping of multiple compressors independently of one another and respectively
It connects, is connected to after the inner end bout of multiple compressor air-discharging valve ports 23 with valve chamber 22, as shown in Figure 3 and Figure 4.Above structure is because in valve
Aperture is few on core, so the structural strength of spool is higher.
Optionally, the structure of compressor return air valve port is similar with the structure of compressor air-discharging valve port in the embodiment of the present invention,
Two schemes can be used, multiple compressor return air valve ports 26 independently of one another, are not connected to mutually, multiple compressor return air valve ports 26
Return line of the outer end respectively with multiple compressors connects one to one, the inner end of multiple compressor return air valve ports 26 respectively with valve
Chamber 22 is connected to, as shown in Figure 2 and Figure 4；Or using multiple compressor return air valve ports 26 outer end independently of one another and respectively with it is multiple
The gas exhaust piping of compressor connects one to one, and is connected to after the inner end bout of multiple compressor return air valve ports 26 with valve chamber 22, such as
Shown in Fig. 3 and Fig. 5.Compressor return air valve port uses above-mentioned any structure, and technical effect is adopted with compressor return air valve port
It is identical with the technical effect of the structure.
In addition, the above embodiments are only to list 4 kinds of four-way valves as shown in Fig. 2~5 so that compressor is 2 as an example
Organization plan, when the quantity of compressor increases, the compressor air-discharging valve port of four-way valve and the quantity of compressor return air valve port
Increase, the technical side that above two structure combines can be used in multiple compressor air-discharging valve ports or multiple compressor return air valve ports
Case, according to practical application, being combined using various arrangement can get multiple embodiments, thus in conjunction with the excellent of two kinds of organization plans
Point.
Further, spool 27 is movably installed in the valve chamber 22 of the embodiment of the present invention, spool 27 can separate valve chamber 22
For high pressure valve chamber 221 and low pressure valve chamber 222, switched between the first position and the second position of valve chamber 22 by spool 27, it is real
The refrigeration and heat-production functions of existing air conditioner.When air conditioner refrigeration, spool 27 is in first position, 23 He of compressor air-discharging valve port
Condenser valve port 24 is connected to high pressure valve chamber 221 respectively, evaporator valve port 25 and compressor return air valve port 26 respectively with low pressure valve
Chamber 222 is connected to, as shown in Figure 6；When air conditioner heat-production, when spool 27 is in the second position, compressor air-discharging valve port 23 and steaming
Hair device valve port 25 is connected to high pressure valve chamber 221 respectively, condenser valve port 24 and compressor return air valve port 26 respectively with low pressure valve chamber
222 connections, as shown in Figure 7.
The main valve body 21 of four-way valve of the embodiment of the present invention is additionally provided with solenoid pilot valve 29, passes through 29 control valve of solenoid pilot valve
The movement of core 27.Referring to Fig. 8, when air-conditioning is freezed, " OFF " in figure indicates that the coil in solenoid pilot valve 29 is obstructed
Electricity, spool are moved downward because of the spring (not shown) restoring force in solenoid pilot valve 29；Referring to Fig. 9, when air-conditioning system
When hot, " ON " in figure indicates that the coil in solenoid pilot valve 29 is powered, spool because in solenoid pilot valve 29 armature be attracted due to by
Promotion moves right, while the spring in solenoid pilot valve 29 is compressed.The control mode of above-mentioned valve core movement is simple, and spool is anti-
Answer sensitive, actuation time is short.
Further, control valve biggish for valve block internal diameter only leans on the more difficult driving valve core movement of electromagnetic force, therefore,
It is equipped with the pilot valve 28 that can be connected to high pressure valve chamber 221 and low pressure valve chamber 222 on main valve body 21, when spool 27 moves, can incite somebody to action
Pilot valve 28 is connected to high pressure valve chamber 221 with low pressure valve chamber 222 respectively, so that between high pressure valve chamber 221 and low pressure valve chamber 222
Pressure difference reduces, and the resistance that overcome 27 movement of spool need to reduce, and improves the movement velocity of spool, thus, accelerate air conditioner switching
The speed of refrigeration and heat-production functions.
The embodiment of the invention also includes a kind of multi-split air conditioners, including multiple compressors 1 and multiple evaporators 5, throttling
Component 4 and condenser 3, condenser 3, throttle part 4 and multiple evaporators 5 are sequentially connected in series, and multiple evaporators 5 are parallel with one another,
It also include the above-mentioned four-way valve 2 for multi-split air conditioner, multiple compressor air-discharging valve ports 23 of four-way valve 2 and multiple compressions
The gas exhaust piping of machine 1 connects one to one, and condenser valve port 24 is connect with the external pipeline of condenser 3, evaporator valve port 25 with
The external pipeline of multiple evaporators 5 connects, and the return line of multiple compressor return air valve ports 26 and multiple compressors 1 corresponds
Connection.Due to the four-way valve and above-mentioned four-way valve for multi-split air conditioner installed in the multi-split air conditioner of the present embodiment
Each embodiment in the four-way valve arrangement that provides it is identical, therefore the two is able to solve identical technical problem, and reaches identical
Desired effect.
Specifically by taking air conditioner with surplus indoor unit as an example, when air conditioner is freezed, specific pipeline jointing construction as shown in fig. 6,
Arrow show the flow direction of refrigerant in figure；When air conditioner is heated, specific pipeline jointing construction as shown in fig. 7,
It is the flow direction of refrigerant described in arrow in figure.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of four-way valve for multi-split air conditioner, including main valve body, the main valve body is interior to be equipped with valve chamber, the main valve body
On offer the compressor air-discharging valve port being connected to the valve chamber, condenser valve port, evaporator valve port and compressor return air valve
Mouthful, which is characterized in that the compressor air-discharging valve port and the compressor return air valve port are multiple, multiple compressor air-dischargings
Valve port is used to connect one to one with the gas exhaust piping of multiple compressors, and the condenser valve port is for the extension tube attached with condenser
Road connection, the evaporator valve port for connecting with the external pipeline of multiple evaporators, use by multiple compressor return air valve ports
It connects one to one in the return line with multiple compressors.
2. the four-way valve according to claim 1 for multi-split air conditioner, which is characterized in that multiple compressor rows
Valve port while is independent of one another, and the outer end of multiple compressor air-discharging valve ports is corresponded with the gas exhaust piping of multiple compressors respectively
Connection, the inner end of multiple compressor air-discharging valve ports is connected to the valve chamber respectively.
3. the four-way valve according to claim 1 for multi-split air conditioner, which is characterized in that multiple compressor rows
The outer end of valve port while is independently of one another and the gas exhaust piping with multiple compressors connects one to one respectively, multiple compressors
The inner end of exhaust valve port is connected to after converging with the valve chamber.
4. the four-way valve according to claim 1 for multi-split air conditioner, which is characterized in that multiple compressors return
Valve port while is independent of one another, and the outer end of multiple compressor return air valve ports is corresponded with the return line of multiple compressors respectively
Connection, the inner end of multiple compressor return air valve ports is connected to the valve chamber respectively.
5. the four-way valve according to claim 1 for multi-split air conditioner, which is characterized in that multiple compressors return
The outer end of valve port while is independently of one another and the return line with multiple compressors connects one to one respectively, multiple compressors
The inner end of return-air valve port is connected to after converging with the valve chamber.
6. the four-way valve according to claim 1 for multi-split air conditioner, which is characterized in that activity peace in the valve chamber
Equipped with spool, the valve chamber is divided into high pressure valve chamber and low pressure valve chamber by the spool, and can be in first position and the second position
Between switch；
When air conditioner refrigeration, the spool is in first position, the compressor air-discharging valve port and the condenser valve port point
It is not connected to the high pressure valve chamber, the evaporator valve port and the compressor return air valve port connect with the low pressure valve chamber respectively
It is logical；When air conditioner heat-production, the spool is in the second position, the compressor air-discharging valve port and evaporator valve port difference
It is connected to the high pressure valve chamber, the condenser valve port and the compressor return air valve port are connected to the low pressure valve chamber respectively.
7. the four-way valve according to claim 6 for multi-split air conditioner, which is characterized in that the main valve body is additionally provided with
It can be connected to the pilot valve of the high pressure valve chamber and the low pressure valve chamber, when the spool is mobile, the pilot valve can make described
Pressure difference between high pressure valve chamber and the low pressure valve chamber reduces.
8. a kind of multi-split air conditioner, including multiple compressors and multiple evaporators, throttle part and condenser, the condensation
Device, the throttle part and multiple evaporators are sequentially connected in series, and multiple evaporators are parallel with one another, which is characterized in that also
Four-way valve comprising being used for multi-split air conditioner described in any one of the claims 1~7, multiple institutes of the four-way valve
State compressor air-discharging valve port and the gas exhaust piping of multiple compressors connect one to one, the condenser valve port with it is described cold
The external pipeline of condenser connects, and the evaporator valve port is connect with the external pipeline of multiple evaporators, multiple compressions
Machine return-air valve port and the return line of multiple compressors connect one to one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330011.5A CN105953482B (en) | 2016-05-17 | 2016-05-17 | A kind of four-way valve and multi-split air conditioner for multi-split air conditioner |
| PCT/CN2016/083733 WO2017197661A1 (en) | 2016-05-17 | 2016-05-27 | Four-way valve for multi-split air conditioner and multi-split air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330011.5A CN105953482B (en) | 2016-05-17 | 2016-05-17 | A kind of four-way valve and multi-split air conditioner for multi-split air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105953482A CN105953482A (en) | 2016-09-21 |
| CN105953482B true CN105953482B (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610330011.5A Active CN105953482B (en) | 2016-05-17 | 2016-05-17 | A kind of four-way valve and multi-split air conditioner for multi-split air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105953482B (en) |
| WO (1) | WO2017197661A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520165B (en) * | 2017-09-18 | 2020-11-06 | 奥克斯空调股份有限公司 | Air conditioning unit and four-way valve fault detection method thereof |
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| CN2319722Y (en) * | 1998-03-19 | 1999-05-19 | 冯海芃 | One-master-driving-multiple-indoor-machines air conditioner with parallel multiple compressors |
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| CN202993668U (en) * | 2012-11-30 | 2013-06-12 | 广东美的电器股份有限公司 | Multi-coupled air conditioner, outdoor unit and oil return device |
| CN104390283A (en) * | 2014-10-21 | 2015-03-04 | 广东美的暖通设备有限公司 | Multi-indoor-unit air conditioner and outdoor unit system thereof |
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| JPS5914664B2 (en) * | 1981-09-30 | 1984-04-05 | 株式会社 鷺宮製作所 | Four-way reversing valve for refrigeration cycle |
| JPS61175378A (en) * | 1985-01-31 | 1986-08-07 | Toshiba Corp | Four-way valve apparatus |
| JPH09145188A (en) * | 1995-11-27 | 1997-06-06 | Sanyo Electric Co Ltd | Refrigerating cycle and air conditioner provided with the refrigerating cycle |
| JPH11325633A (en) * | 1998-05-18 | 1999-11-26 | Mitsubishi Electric Corp | Refrigerant channel switching valve |
| CN101070923A (en) * | 2006-05-11 | 2007-11-14 | 乐金电子(天津)电器有限公司 | By-pass type four-way valve of external machine of one-and-multi air-conditioner |
| JP4294683B2 (en) * | 2006-12-19 | 2009-07-15 | 日立アプライアンス株式会社 | Four-way switching valve and air conditioner using the same |
| CN202613845U (en) * | 2012-05-03 | 2012-12-19 | 美的集团有限公司 | Oil return system of multi-split air conditioner |
| JP2015021578A (en) * | 2013-07-22 | 2015-02-02 | ダイキン工業株式会社 | Four-way valve |
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2016
- 2016-05-17 CN CN201610330011.5A patent/CN105953482B/en active Active
- 2016-05-27 WO PCT/CN2016/083733 patent/WO2017197661A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319722Y (en) * | 1998-03-19 | 1999-05-19 | 冯海芃 | One-master-driving-multiple-indoor-machines air conditioner with parallel multiple compressors |
| CN200940706Y (en) * | 2006-06-08 | 2007-08-29 | 钱松平 | Four-way valve for heat pump type air conditioner |
| CN202993668U (en) * | 2012-11-30 | 2013-06-12 | 广东美的电器股份有限公司 | Multi-coupled air conditioner, outdoor unit and oil return device |
| CN104390283A (en) * | 2014-10-21 | 2015-03-04 | 广东美的暖通设备有限公司 | Multi-indoor-unit air conditioner and outdoor unit system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105953482A (en) | 2016-09-21 |
| WO2017197661A1 (en) | 2017-11-23 |
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Address after: 529000 No. 8 Hisense Avenue, an advanced manufacturing industry in Jiangmen, Guangdong. Applicant after: Hisense (Guangdong) Air Conditioner Co., Ltd. Address before: 528303 12 Ronggui Road East Road, Shunde District, Foshan, Guangdong. Applicant before: Hisense (Guangdong) Air Conditioner Co., Ltd. |
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