CN105953482A - Four-way valve for multi-split air conditioner and multi-split air conditioner - Google Patents
Four-way valve for multi-split air conditioner and multi-split air conditioner Download PDFInfo
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- CN105953482A CN105953482A CN201610330011.5A CN201610330011A CN105953482A CN 105953482 A CN105953482 A CN 105953482A CN 201610330011 A CN201610330011 A CN 201610330011A CN 105953482 A CN105953482 A CN 105953482A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—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
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- 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)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a four-way valve for a multi-split air conditioner and the multi-split air conditioner, relates to the technical field of air conditioning, and aims to solve the problem that a multi-split air conditioner in the prior art needs to adopts a plurality of four-way valves and is low in cost and complex in pipeline connection structure. The four-way valve for the multi-split air conditioner comprises a main valve body, wherein a valve cavity is arranged in the main valve body; a plurality of compressor exhaust valve ports, a condenser valve port, an evaporator valve port and a plurality of compressor air return valve ports, which communicate with the valve cavity, are formed in the main valve body; the compressor exhaust valve ports are used for being connected with exhaust pipelines of a plurality of compressors in a one-to-one correspondence way; the condenser valve port is used for being connected with an external pipeline of a condenser; the evaporator valve port is used for being connected with external pipelines of a plurality of evaporators; and the compressor air return valve ports are used for being connected with air return pipelines of the compressors in a one-to-one correspondence way. The four-way valve for the multi-split air conditioner is used for realizing reverse circulation of a refrigerant in the air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of for the four of multi-split air conditioner
Logical valve and multi-split air conditioner.
Background technology
Cross valve is the control valve that a kind of air-conditioning refrigeration system is conventional, is generally used for realizing air-conditioner
The commutation circulation of middle cold-producing medium.
With reference to Fig. 1, as a example by the pipeline jointing construction of air conditioner with surplus indoor unit, including 2 compressions
Machine 01, wherein, the air vent pipeline of compressor 011 and the exhaust outlet of compressor of cross valve 02
021 connects, the gas returning port pipeline of compressor 011 and the compressor return air mouth 024 of cross valve 02
Connect；The air vent pipeline of compressor 012 and the exhaust outlet of compressor 031 of cross valve 03,
The gas returning port pipeline of compressor 012 is connected with the compressor return air mouth 034 of cross valve 03；Cold
Condenser 04, throttle part 05 and 2 vaporizers 06 are sequentially connected in series, wherein, and vaporizer 061
Parallel with one another with vaporizer 062, and the external pipeline of condenser 04 one end respectively with four-way
The condenser valve port 022 of valve 02 and the condenser valve port 032 of cross valve 03 connect, vaporizer
The external pipeline of 061 is connected with the vaporizer valve port 023 of cross valve 02, vaporizer 062
External pipeline is connected with the vaporizer valve port 033 of cross valve 03.When air-conditioner freezes,
The direction of arrow shown in Fig. 1 is the flow direction of cold-producing medium, the system discharged in compressor 011
Cryogen compressor air-discharging valve port 021 in cross valve 02 is discharged from condenser valve port 022,
Return to compressor 011 from vaporizer valve port 023 through compressor return-air valve port 024 again, compression
The cold-producing medium flow direction of machine 012 is identical with compressor 011；When air-conditioner heats,
Cross valve 03 all commutates with cross valve 02, and the cold-producing medium discharged in compressor 011 is through cross valve
Compressor air-discharging valve port 021 in 02 is discharged from vaporizer valve port 023, then from condenser valve
Mouth 022 returns in compressor 011 through compressor return-air valve port 024, the refrigeration of compressor 012
Agent flow direction is identical with compressor 011.
Above-mentioned air conditioner with surplus indoor unit respectively controls a compressor by two cross valves and is discharged
The flow direction of cold-producing medium, for multi-split air conditioner, then needs to use multiple cross valves one by one
The corresponding flow direction controlled from each compressor discharging refrigerant, thus realize the system of air-conditioner
Cold and heat-production functions, but the quantity that cross valve uses is more, not only makes production cost higher,
And need more pipeline to connect each refrigeration part, cause the pipeline jointing construction of air-conditioner relatively
Complicated.
Summary of the invention
Embodiments of the invention provide a kind of cross valve for multi-split air conditioner and to drag many
Air-conditioner, it is possible to resolve in prior art, multi-split air conditioner need to use multiple cross valve, cost is high
And the problem that pipeline jointing construction is complicated.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of cross valve for multi-split air conditioner, including main valve body, sets in described main valve body
There is valve pocket, described main valve body offers the compressor air-discharging valve port, cold connected with described valve pocket
Condenser valve port, vaporizer valve port and compressor return air valve port, described compressor air-discharging valve port and
Described compressor return air valve port is multiple, and multiple described compressor air-discharging valve ports are used for and multiple pressures
The gas exhaust piping of contracting machine connects one to one, external for condenser of described condenser valve port
Pipeline connects, and described vaporizer valve port is for being connected with the external pipeline of multiple vaporizers, multiple
Described compressor return air valve port connects one to one for the return line with multiple compressors.
The invention also discloses a kind of multi-split air conditioner, including multiple compressors and multiple evaporation
Device, throttle part and condenser, described condenser, described throttle part and multiple described steaming
Sending out device to be sequentially connected in series, multiple described vaporizers are parallel with one another, also comprise above-mentioned drag for one many
The cross valve of air-conditioner, the multiple described compressor air-discharging valve port of described cross valve is described with multiple
The gas exhaust piping of compressor connects one to one, outside described condenser valve port is with described condenser
Adapter road connects, and described vaporizer valve port is connected with the external pipeline of multiple described vaporizers, many
Individual described compressor return air valve port connects one to one with the return line of multiple described compressors.
The cross valve for multi-split air conditioner and one that the embodiment of the present invention provides drags many air-conditionings
Device, owing to compressor air-discharging valve port and the compressor return air valve port offered on cross valve main valve body is
Multiple so that the gas exhaust piping of multiple compressors can the most respectively with multiple compressor air-discharging valve ports
Connect one to one, the return line of multiple compressors can respectively with multiple compressor return air valve ports
Connecting one to one, condenser valve port is connected with the external pipeline of condenser, vaporizer valve port with
The external pipeline of multiple vaporizers connects.Because multiple compression can be controlled only with a cross valve
The flow direction of machine gas exhaust piping inner refrigerant, the gas exhaust piping of multiple compressors and return line
Can be connected with condenser or vaporizer after directly converging in a cross valve, be not required to more other
External pipeline, so, the embodiment of the present invention solves multi-split air conditioner in prior art and need to adopt
Use multiple cross valve, the problem that cost is high and pipeline jointing construction is complicated.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to these
Accompanying drawing obtains other accompanying drawing.
Fig. 1 is the pipeline connection diagram of multi-split air conditioner in prior art；
Fig. 2 is the embodiment of the present invention structural representation for the cross valve of multi-split air conditioner
One of；
Fig. 3 is the embodiment of the present invention structural representation for the cross valve of multi-split air conditioner
Two；
Fig. 4 is the embodiment of the present invention structural representation for the cross valve of multi-split air conditioner
Three；
Fig. 5 is the embodiment of the present invention structural representation for the cross valve of multi-split air conditioner
Four；
Fig. 6 is embodiment of the present invention multi-split air conditioner pipeline jointing construction when freezing
Schematic diagram；
Fig. 7 is embodiment of the present invention multi-split air conditioner pipeline jointing construction when heating
Schematic diagram；
Fig. 8 is embodiment of the present invention multi-split air conditioner cross valve spool former when freezing
Reason schematic diagram；
Fig. 9 is embodiment of the present invention multi-split air conditioner cross valve spool former when heating
Reason schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that described embodiment is only the present invention one
Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under not making creative work premise,
Broadly fall into the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " on ", D score,
"front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward "
Deng instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be only for
It is easy to describe the present invention and simplifying describe rather than instruction or the device of hint indication or element
Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.
Cross valve is a kind of control valve conventional in air-conditioner, and the structure of cross valve includes main valve
Body, main valve body be provided with the compressor air-discharging valve port for being connected with the gas exhaust piping of compressor,
For the condenser valve port being connected with the external pipeline of condenser, for the extension tube attached with vaporizer
Vaporizer valve port that road connects and for the return-air valve port of compressor, by main valve body internal valve
Core moves, the flow direction of switching cold-producing medium, thus realizes refrigeration or the heat-production functions of air-conditioning.
A kind of cross valve 2 for multi-split air conditioner of the embodiment of the present invention, is provided with including inside
The main valve body 21 of valve pocket 22, main valve body 21 offers the compressor row connected with valve pocket 22
Valve port while 23, condenser valve port 24, vaporizer valve port 25 and compressor return air valve port 26,
Wherein, compressor air-discharging valve port 23 is used for being connected with the gas exhaust piping of compressor, condenser valve
Mouth 24 is for being connected with the external pipeline of condenser, and vaporizer valve port 25 is for multiple vaporizers
External pipeline connect, compressor return air valve port 26 is for being connected with the return line of compressor.
Especially, compressor air-discharging valve port 23 and compressor return air valve port 26 are multiple, multiple compressions
Machine exhaust valve port 23 can be used for connecting one to one with the gas exhaust piping of multiple compressors, multiple
Compressor return air valve port 26 can be used for connecting one to one with the return line of multiple compressors,
As figures 2-6.
The cross valve for multi-split air conditioner that the embodiment of the present invention provides, due at main valve body
The compressor air-discharging valve port 23 offered on 21 and compressor return air valve port 26 are for multiple so that
The gas exhaust piping of multiple compressors can the most respectively with multiple compressor air-discharging valve port 23 1 a pair
Should connect, the return line of multiple compressors can respectively with multiple compressor return air valve ports 26 1
One corresponding connection, condenser valve port 24 is connected with the external pipeline of condenser, vaporizer valve port
25 are connected with the external pipeline of multiple vaporizers.Because controlling many only with a cross valve
The flow direction of individual compressor air-discharging pipeline inner refrigerant, the gas exhaust piping of multiple compressors and return
After air pipe can directly converge in a cross valve, so, the embodiment of the present invention solves existing
Having multi-split air conditioner in technology need to use multiple cross valve, cost is high and pipeline jointing construction is multiple
Miscellaneous problem.
Specifically, the multiple compressor air-discharging valve ports 23 in the embodiment of the present invention are independent of one another,
Mutually do not connect, the outer end of multiple compressor air-discharging valve ports 23 respectively with the row of multiple compressors
Air pipe connects one to one, the inner of multiple compressor air-discharging valve ports 23 respectively with valve pocket 22
Connection, as shown in Figure 2 and Figure 5.Above-mentioned multiple compressor air-discharging valve port is mutually independent,
Each compressor can enter in cross valve from each compressor air-discharging valve port respectively, will not mutual shadow
Ring and cause the refrigerant inlet amount inequality of each branch.
Additionally, the compressor air-discharging valve port in the embodiment of the present invention also can use another kind of similar many
The version of siphunculus, the outer end of multiple compressor air-discharging valve ports 23 independently of one another and is distinguished
Connect one to one with the gas exhaust piping of multiple compressors, multiple compressor air-discharging valve ports 23
Connect with valve pocket 22, as shown in Figure 3 and Figure 4 after inner bout.Said structure is because of at spool
Upper perforate is few, so the structural strength of spool is higher.
Alternatively, the structure of compressor return air valve port and compressor exhaust valve in the embodiment of the present invention
The structure of mouth is similar to, and can use two schemes, and multiple compressor return air valve ports 26 are independent of one another,
Mutually do not connect, the outer end of multiple compressor return air valve ports 26 respectively with multiple compressors return
Air pipe connects one to one, the inner of multiple compressor return air valve ports 26 respectively with valve pocket 22
Connection, as shown in Figure 2 and Figure 4；Or use multiple compressor return air valve port 26 outer end that
This independent and respectively gas exhaust piping with multiple compressors connect one to one, multiple compressors
Connect with valve pocket 22, as shown in Figure 3 and Figure 5 after the inner bout of return-air valve port 26.Compression
Machine return-air valve port uses any one above-mentioned structure, and its technique effect is adopted with compressor return air valve port
Identical with the technique effect of this structure.
Additionally, the above embodiments are as a example by compressor is 2, only list such as Fig. 2～5
Shown in the organization plan of 4 kinds of cross valves, when the quantity of compressor increases, cross valve
The quantity of compressor air-discharging valve port and compressor return air valve port all increases, multiple compressor exhaust valves
Mouth or multiple compressor return air valve port all can use the technical scheme that above two structure combines, root
Border application factually, uses various arrangement combination can obtain multiple embodiments, thus combines two kinds
The advantage of organization plan.
Further, it is movably installed with spool 27, spool in the valve pocket 22 of the embodiment of the present invention
Valve pocket 22 can be divided into high pressure valve pocket 221 and low pressure valve pocket 222 by 27, is existed by spool 27
Switch between primary importance and the second position of valve pocket 22, it is achieved the refrigeration of air-conditioner and heating
Function.When air-conditioner freezes, spool 27 is in primary importance, compressor air-discharging valve port 23
Connect with high pressure valve pocket 221 respectively with condenser valve port 24, vaporizer valve port 25 and compressor
Return-air valve port 26 connects with low pressure valve pocket 222 respectively, as shown in Figure 6；Work as air conditioner heat-production
Time, when spool 27 is in the second position, compressor air-discharging valve port 23 and vaporizer valve port 25
Connecting with high pressure valve pocket 221 respectively, condenser valve port 24 and compressor return air valve port 26 are respectively
Connect with low pressure valve pocket 222, as shown in Figure 7.
The main valve body 21 of embodiment of the present invention cross valve is additionally provided with solenoid pilot valve 29, by electricity
Magnetic steering valve 29 controls the motion of spool 27.With reference to Fig. 8, when air-conditioning freezes, figure
In " OFF " represent the coil no power in solenoid pilot valve 29, spool guides because of electromagnetism
Spring (not shown) restoring force in valve 29 is to left movement；With reference to Fig. 9, work as air-conditioning
When heating, " ON " in figure represents the coil electricity in solenoid pilot valve 29, spool
Because of in solenoid pilot valve 29 armature adhesive and moved right by promotion, solenoid pilot valve 29 simultaneously
Interior spring is compressed.The control mode of above-mentioned valve core movement is simple, and spool is quick on the draw, dynamic
Make the time short.
Further, for the control valve that valve block internal diameter is bigger, only by the more difficult driving of electromagnetic force
Valve core movement, therefore, is provided with on main valve body 21 and can connect high pressure valve pocket 221 and low pressure valve
The pilot valve 28 in chamber 222, when spool 27 moves, can by pilot valve 28 respectively with high pressure
Valve pocket 221 connects with low pressure valve pocket 222 so that high pressure valve pocket 221 and low pressure valve pocket 222 it
Between pressure reduction reduce, make spool 27 move the resistance that need to overcome and reduce, improve the motion of spool
Speed, thus, accelerate air-conditioner switching refrigeration and the speed of heat-production functions.
The embodiment of the present invention also includes a kind of multi-split air conditioner, including multiple compressors 1 with many
Individual vaporizer 5, throttle part 4 and condenser 3, condenser 3, throttle part 4 and many
Individual vaporizer 5 is sequentially connected in series, and multiple vaporizers 5 are parallel with one another, also comprises above-mentioned for one
The cross valve 2 of one driving multiple-unit air conditioner, multiple compressor air-discharging valve ports 23 of cross valve 2 are with multiple
The gas exhaust piping of compressor 1 connects one to one, outside condenser valve port 24 is with condenser 3
Adapter road connects, and vaporizer valve port 25 is connected with the external pipeline of multiple vaporizers 5, multiple
Compressor return air valve port 26 connects one to one with the return line of multiple compressors 1.Due to
In the multi-split air conditioner of the present embodiment install the cross valve for multi-split air conditioner with
The cross valve structure provided in each embodiment of above-mentioned cross valve is identical, and therefore the two can solve the problem that
Identical technical problem, and reach identical Expected Results.
Specifically as a example by air conditioner with surplus indoor unit, when air-conditioner freezes, concrete pipeline connects
As shown in Figure 6, in figure, arrow show the flow direction of cold-producing medium to structure；Carry out at air-conditioner
When heating, concrete pipeline jointing construction is as it is shown in fig. 7, be the stream of cold-producing medium described in arrow in figure
Dynamic direction.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (8)
1. for a cross valve for multi-split air conditioner, including main valve body, in described main valve body
Be provided with valve pocket, described main valve body offers connect with described valve pocket compressor air-discharging valve port,
Condenser valve port, vaporizer valve port and compressor return air valve port, it is characterised in that described pressure
Contracting machine exhaust valve port and described compressor return air valve port are multiple, multiple described compressor exhaust valves
Mouth connects one to one for the gas exhaust piping with multiple compressors, and described condenser valve port is used for
It is connected with the external pipeline of condenser, external for multiple vaporizers of described vaporizer valve port
Pipeline connects, and multiple described compressor return air valve ports are for the return line one with multiple compressors
One corresponding connection.
Cross valve for multi-split air conditioner the most according to claim 1, its feature exists
In, multiple described compressor air-discharging valve ports are independent of one another, multiple described compressor air-discharging valve ports
Outer end gas exhaust piping with multiple compressors respectively connects one to one, and multiple described compressors are arranged
The inner of valve port while connects with described valve pocket respectively.
Cross valve for multi-split air conditioner the most according to claim 1, its feature exists
In, the outer end of multiple described compressor air-discharging valve ports independently of one another and respectively with multiple compressors
Gas exhaust piping connect one to one, the inner of multiple described compressor air-discharging valve ports converge after with
Described valve pocket connects.
Cross valve for multi-split air conditioner the most according to claim 1, its feature exists
In, multiple described compressor return air valve ports are independent of one another, multiple described compressor return air valve ports
Outer end return line with multiple compressors respectively connects one to one, and multiple described compressors return
The inner of valve port while connects with described valve pocket respectively.
Cross valve for multi-split air conditioner the most according to claim 1, its feature exists
In, the outer end of multiple described compressor return air valve ports independently of one another and respectively with multiple compressors
Return line connect one to one, the inner of multiple described compressor return air valve ports converge after with
Described valve pocket connects.
Cross valve for multi-split air conditioner the most according to claim 1, its feature exists
In, it being movably installed with spool in described valve pocket, described valve pocket is divided into high pressure valve by described spool
Chamber and low pressure valve pocket, and can switch between primary importance and the second position；
When air-conditioner freezes, described spool is in primary importance, described compressor air-discharging valve port
Connect with described high pressure valve pocket respectively with described condenser valve port, described vaporizer valve port and described
Compressor return air valve port connects with described low pressure valve pocket respectively；When air conditioner heat-production, described valve
Core is in the second position, described compressor air-discharging valve port and described vaporizer valve port respectively with described
High pressure valve pocket connects, and described condenser valve port and described compressor return air valve port are low with described respectively
Pressure valve chamber connects.
Cross valve for multi-split air conditioner the most according to claim 6, its feature exists
In, described main valve body is additionally provided with and can connect described high pressure valve pocket and the pilot valve of described low pressure valve pocket,
When described spool moves, described pilot valve can make described high pressure valve pocket and described low pressure valve pocket it
Between pressure reduction reduce.
8. a multi-split air conditioner, including multiple compressors and multiple vaporizer, throttle part
And condenser, described condenser, described throttle part and multiple described vaporizer be sequentially connected in series,
Multiple described vaporizers are parallel with one another, it is characterised in that also comprise in the claims 1～7
The cross valve for multi-split air conditioner described in any one, the multiple described pressure of described cross valve
Contracting machine exhaust valve port connects one to one with the gas exhaust piping of multiple described compressors, described condensation
Device valve port is connected with the external pipeline of described condenser, described vaporizer valve port and multiple described steamings
The external pipeline sending out device connects, multiple described compressor return air valve ports and multiple described compressors
Return line connects 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 true CN105953482A (en) | 2016-09-21 |
| CN105953482B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109520165A (en) * | 2017-09-18 | 2019-03-26 | 奥克斯空调股份有限公司 | A kind of air-conditioner set and its four-way valve fault detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520165A (en) * | 2017-09-18 | 2019-03-26 | 奥克斯空调股份有限公司 | A kind of air-conditioner set and its four-way valve fault detection method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105953482B (en) | 2018-12-18 |
| 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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