CN206274195U - A kind of air handling system and air-conditioner - Google Patents
A kind of air handling system and air-conditioner Download PDFInfo
- Publication number
- CN206274195U CN206274195U CN201621155940.9U CN201621155940U CN206274195U CN 206274195 U CN206274195 U CN 206274195U CN 201621155940 U CN201621155940 U CN 201621155940U CN 206274195 U CN206274195 U CN 206274195U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- handling system
- interface
- compressor
- regenerative apparatus
- 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.)
- Active
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model is related to air-conditioning technique field, there is provided a kind of air handling system and air-conditioner.In air handling system, the shell of compressor is provided with regenerative apparatus and electric heater；Compressor outlet connects the first triple valve inlet, and the first triple valve first outlet connects four-way valve first interface by the first pipeline, and by regenerative apparatus, the first triple valve second outlet connects four-way valve first interface to the first pipeline by the second pipeline；Four-way valve second interface and the 3rd interface connect indoor heat exchanger and outdoor heat exchanger respectively；The interface of four-way valve the 4th connection compressor return air mouthful.In the air handling system, regenerative apparatus is stored to the used heat that compressor housing is produced, and with reference to electric heater, sets requirement is reached with the temperature ensured in regenerative apparatus.Under heating mode, the refrigerant of outflow first passes through regenerative apparatus lifting temperature, it is ensured that defrost process stability, accelerates outdoor unit defrost speed, improves the thermal comfort for room under low-temperature heating.
Description
Technical field
The utility model is related to air-conditioning technique field, more particularly to a kind of air handling system and air-conditioner.
Background technology
Can there is frosting in air handling system, defrosting problem is always sky when heat pump mode is run in low temperature environment
Adjust the research emphasis of industry professional.The formation of frost layer and influence factor are more complicated, and major influence factors have cooling surface, room
Outer weather conditions and time.When air handling system is used in the very low environment of outdoor temperature in the winter time, the evaporation temperature of its working medium
Degree is very low, and the moisture in air easily condenses into frost in evaporator surface, especially in the big regional frost of air humidity more
Easily occur, and frosting can then increase outdoor unit windage, cause outdoor heat exchanger heat transfer coefficient to decline.With the drop of evaporating temperature
Low, under certain condensation temperature, the coefficient of performance in heating of heat pump is also accordingly reduced, so as to the utilization rate for causing heat energy declines.
Therefore, frosting, quickening defrosting speed are reduced as far as possible can effectively improve heating effect, reduce operating cost, improve
The low-temperature heating efficiency of pump type heat air handling system.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is：A kind of air handling system and air-conditioner are provided, are solved present in prior art
Heating efficiency is low during defrosting, the problem of poor user experience.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of air handling system, including：Compressor, room
Interior heat exchanger, outdoor heat exchanger and the four-way valve for adjusting refrigerant flow direction, the shell of the compressor are provided with storage
Thermal, for absorbing and stores the used heat of the compressor case, and the electricity that the regenerative apparatus is provided with for supplementary heating adds
Hot device；The gas outlet of the compressor connects the entrance of the first triple valve, and the first outlet of first triple valve passes through first
Pipeline connects the four-way valve first interface, and first pipeline is by the regenerative apparatus, and the of first triple valve
Two outlets connect four-way valve first interface by the second pipeline；The second interface of the four-way valve and the 3rd interface connect institute respectively
State indoor heat exchanger and the outdoor heat exchanger；4th interface of the four-way valve connects the gas returning port of the compressor.
Preferably, the outdoor heat exchanger connected by the 5th pipeline and connected on indoor heat exchanger, and the 5th pipeline
There is expansion valve；On 5th pipeline, between the pipeline section at the expansion valve two ends, access has bypass branch, and the side
Switch valve is connected with logical branch road.
Preferably, the 4th interface of the four-way valve connects the entrance of the second triple valve, the first of second triple valve
Outlet connects the gas returning port of the compressor by the 3rd pipeline, and the 3rd pipeline is by the regenerative apparatus, and described the
The second outlet of two triple valves connects the gas returning port of the compressor by the 4th pipeline.
Preferably, it is connected with gas-liquid separator on the 4th pipeline.
Preferably, the regenerative apparatus is phase transition heat accumulation unit.
Preferably, the phase transition heat accumulation unit includes the accumulation of heat casing fitted with the shell of the compressor, and filling
Heat-storing material in the accumulation of heat casing, the heat-storing material includes paraffin and vulcanization expanded graphite.
Preferably, the electric heater is PTC electrically heated rods.
The utility model also provides a kind of air-conditioner, including above-mentioned air handling system.
(3) beneficial effect
The technical solution of the utility model has advantages below：Air handling system of the present utility model, including：Compression
Machine, indoor heat exchanger, outdoor heat exchanger and the four-way valve for adjusting refrigerant flow direction, the shell of the compressor are set
There is regenerative apparatus, for absorbing and store the used heat of the compressor case, the regenerative apparatus is provided with for supplementary heating
Electric heater；The gas outlet of the compressor connects the entrance of the first triple valve, and the first outlet of first triple valve passes through
First pipeline connects four-way valve first interface, and first pipeline by the regenerative apparatus, and the of first triple valve
Two outlets connect four-way valve first interface by the second pipeline；The second interface of the four-way valve and the 3rd interface difference junction chamber
Interior heat exchanger and outdoor heat exchanger；4th interface of the four-way valve connects the gas returning port of the compressor.The air adjustment system
In system, regenerative apparatus is stored to the used heat that compressor housing is produced, and realizes the recycling of used heat；Additionally, accumulation of heat is filled
Put and lift delivery temperature with reference to electric heater, sets requirement is reached with the temperature ensured in regenerative apparatus.On this basis, from pressure
Contracting machine gas outlet is connected with the first triple valve, and the conducting of the first triple valve is controlled according to the operational mode of air handling system.
When air handling system is in heating mode, the refrigerant of outflow first passes through regenerative apparatus, such that it is able to lift delivery temperature,
Ensure the stability of defrost process, accelerate the defrost speed of outdoor unit, improve the thermal comfort for room under low-temperature heating.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the air handling system of embodiment one；
Fig. 2 is the structural representation of the air handling system of embodiment two；
In figure：1st, compressor；2nd, indoor heat exchanger；3rd, outdoor heat exchanger；4th, four-way valve；5th, regenerative apparatus；6th, electrical heating
Device；7th, the first triple valve；8th, the second triple valve；9th, expansion valve；10th, switch valve；11st, gas-liquid separator.
Specific embodiment
Implementation method of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second ", " the 3rd ", " the 4th " are only used for describing purpose, without
It is understood that to indicate or implying relative importance.
, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
Embodiment one
Refer to Fig. 1, the air handling system of the present embodiment one, including：Compressor 1, indoor heat exchanger 2, outdoor heat exchange
Device 3 and the four-way valve 4 for adjusting refrigerant flow direction.Wherein, the shell in the compressor 1 is provided with regenerative apparatus 5,
For absorbing and the used heat of the shell of the compressor 1 is stored, the regenerative apparatus 5 is provided with the electric heater 6 for supplementary heating；
The gas outlet of the compressor 1 connects the entrance of the first triple valve 7, and the first outlet of first triple valve 7 is by the first pipe
Road connects the first interface of four-way valve 4, and first pipeline, by the regenerative apparatus 5, the second of first triple valve 7 goes out
Mouth connects the first interface of four-way valve 4 by the second pipeline；In the second interface of the four-way valve 4 and the 3rd interface difference junction chamber
Heat exchanger 2 and outdoor heat exchanger 3；4th interface of the four-way valve 4 connects the gas returning port of compressor 1.
Wherein, " second interface of the four-way valve 4 and the 3rd interface connect indoor heat exchanger 2 and outdoor heat exchanger respectively
3 " referring to is：Second interface connects indoor heat exchanger 2, the 3rd interface connection outdoor heat exchanger 3.Because it is conventional connection side
Formula, even if therefore not doing specified otherwise it is also understood that connection side between four-way valve 4 and indoor heat exchanger 2, outdoor heat exchanger 3
Formula is clearly.
With reference to accompanying drawing 1, the left side reference of dotted line is indoor, and the right side reference of dotted line is outside.Four-way valve 4
First interface is the interface of upside, and second interface is the interface on the downside left side, and the 3rd interface is the interface on the right of downside, and the 4th connects
Mouth is the interface in the middle of downside, and the distribution of certain each interface is not limited by the accompanying figures.
The air handling system of the present embodiment one, regenerative apparatus 5 is stored to the used heat that the housing of compressor 1 is produced, real
The recycling of used heat is showed；Additionally, regenerative apparatus 5 combines electric heater 6 lifts delivery temperature, with ensureing regenerative apparatus 5
Temperature reach sets requirement.On this basis, the first triple valve 7 is connected with from the gas outlet of compressor 1, and according to air adjustment
The operational mode of system controls the conducting of the first triple valve 7.When air handling system is in heating mode, the refrigerant of outflow
Regenerative apparatus 5 is first passed through to enter into indoor set afterwards, such that it is able to lift delivery temperature, it is ensured that the stability of defrost process,
Accelerate the defrost speed of outdoor unit, improve the thermal comfort for room under low-temperature heating.
Please with further reference to Fig. 1, the 4th interface of the four-way valve 4 connects the entrance of the second triple valve 8, the described 2nd 3
The first outlet of port valve 8 connects the gas returning port of the compressor 1 by the 3rd pipeline, and the 3rd pipeline is by the accumulation of heat
Device 5, the second outlet of second triple valve 8 connects the gas returning port of the compressor 1 by the 4th pipeline.
In the case of this kind, when air handling system runs heating mode, the entrance and first outlet of the second triple valve 8 it
Between turn on, so as to return to compressor 1 after absorbing heat in from outside low-temperature refrigerant out into regenerative apparatus 5, using pressing
On the basis of the used heat of contracting machine 1, suction temperature is improved, such that it is able to further lifting indoor set leaving air temp, it is ensured that air is adjusted
The heating performance of section system.
It is noted that in addition to it can lift delivery temperature, it is when air handling system is under heating mode and empty
When the load of gas regulating system is relatively low, the high-temperature high-pressure refrigerant that above-mentioned regenerative apparatus 5 can also flow out the gas outlet of compressor 1
In energy stored, further avoid the waste of energy.
It should be noted that what above-mentioned " the first pipeline is by described regenerative apparatus 5 " referred to is passed through in the first pipeline
Material can be flowed into regenerative apparatus 5, so as to heat exchange occur in regenerative apparatus 5；Similarly, " the 3rd pipeline passes through
What the regenerative apparatus 5 " was referred to is that the material being passed through in the 3rd pipeline can be flowed into regenerative apparatus 5, so as in accumulation of heat dress
There is heat exchange in putting 5.Wherein it is possible to set corresponding pipeline in regenerative apparatus 5, and the first pipeline and the 3rd pipeline are divided
Do not connected with corresponding pipeline.Or corresponding groove or other pipeline section fixed structures can be set in regenerative apparatus 5,
Such that it is able to the portions of the first pipeline and the 3rd pipeline are arranged in regenerative apparatus 5.Wherein, the knot in regenerative apparatus 5
Structure is set will ensure that interference independently will not occur mutually between the first pipeline section and the 3rd pipeline section.
In the present embodiment one, gas-liquid separator 11 is connected with the 4th pipeline, so as to entering into the system in compressor 1
Cryogen carries out gas-liquid separation, it is to avoid liquid causes to damage into compressor 1 to it.Additionally, as can be known from Fig. 1, refrigerant is from
After three pipelines enter into regenerative apparatus 5, it may return to the 4th pipeline and carries out gas-liquid separation, so as to not increase gas-liquid separator
On the basis of 11 quantity, it is ensured that liquid is free of in the refrigerant entered in compressor 1.
Wherein, regenerative apparatus 5 is preferably phase transition heat accumulation unit 5, including accumulation of heat casing and is filled in the accumulation of heat casing
Heat-storing material.Accumulation of heat casing can fit with the shell of compressor 1, to absorb the used heat of the generation of compressor 1.Additionally, accumulation of heat material
Preferably using paraffin and the mixture of vulcanization expanded graphite, certain heat-storing material do not limited material by citing is originally gone out, and it can be with
It is other suitable materials.
Further, the form of the electric heater 6 in the present embodiment one is unrestricted, and can be in regenerative apparatus 5
Setting groove is used to fix electric heater 6.Electric heater 6 preferably uses PTC electrically heated rods herein, and by PTC electrically heated rods
In the metal groove in regenerative apparatus 5, this kind of security effectiveness of the electric heater of form 6 is high and is easily installed.
But additionally, the first triple valve 7 and the second triple valve 8 is preferred necessarily using the type of three-way solenoid valve.
In the present embodiment one, outdoor heat exchanger 3 is connected on indoor heat exchanger 2, and the 5th pipeline by the 5th pipeline
It is connected with expansion valve 9.Because this kind of connected mode is identical with way of the prior art, therefore do not repeated herein.Finally
The air handling system of the present embodiment for obtaining is please with further reference to Fig. 1.
When carrying out air adjustment using the air handling system of the present embodiment one, comprise the following steps：
Obtain the operational mode of air handling system；
If air handling system is in refrigeration mode：
Turn on to disconnect regenerative apparatus 5 between the entrance and second outlet that control the first triple valve 7 so that from the compression
The refrigerant of the gas outlet of machine 1 outflow is fed directly in the first interface by second pipeline；And control the second threeway
Turn on to disconnect regenerative apparatus 5 between the entrance and second outlet of valve 8 so that the refrigerant from the 4th interface outflow is direct
It flow back into compressor 1；
If air handling system is in heating mode：
Turn on to access regenerative apparatus 5 between the entrance and first outlet that control first triple valve 7 so that from described
The refrigerant of the gas outlet of compressor 1 outflow after the regenerative apparatus 5 by being flowed into the first interface；And control the two or three
Turn on to access regenerative apparatus 5 between the entrance and first outlet of port valve 8 so that lead to from the refrigerant of the 4th interface outflow
Cross after the regenerative apparatus 5 is heated and flow back into compressor 1.
Wherein, when air handling system is under refrigeration mode, the refrigeration that whether gas outlet of compressor 1 is discharged
Agent, or refrigerant in compressor 1 is returned to by the gas returning port of compressor 1, without regenerative apparatus 5.
When air handling system is under heating mode, in order to improve indoor set delivery temperature, and suction temperature is improved, controlled
The first triple valve 7 is made so that refrigerant first passes through regenerative apparatus 5 when being flowed out from the gas outlet of compressor 1 is heated up, control second
Triple valve 8 causes that refrigerant returns to compressor 1 after the heat absorption of regenerative apparatus 5 is first passed through before returning to compressor 1.
It should be noted that including without differentiation heating mode and defrost pattern, namely heating mode in the present embodiment one
Defrost process.
On the basis of the above, when regenerative apparatus 5 is turned on, enter by the temperature inside environment temperature and regenerative apparatus 5
Row judgement decides whether opening electric heater 6.
First determine whether the relation between environment temperature and critical-temperature：
If environment temperature is less than critical-temperature, now the refrigerant from compressor 1 out needs to be heated up, and accumulation of heat
Temperature in device 5 is less than demand temperature again, it is therefore desirable to control electric heater 6 to keep it turned on.Wherein, " environment temperature "
Refer to the temperature of environment where outdoor unit.
If environment temperature is higher than critical-temperature, whether opening electric heater 6 needs to run one in air handling system
The temperature inside regenerative apparatus 5 is judged after the section time.If the temperature in regenerative apparatus 5 is less than design temperature, using electricity
Heater 6 is heated to regenerative apparatus 5；If the temperature in regenerative apparatus 5 is higher than design temperature, electric heater 6 is disconnected.
Wherein, critical-temperature and design temperature can pre-set in air handling system as the case may be.One
As situation, critical-temperature can be -10 DEG C or so, design temperature can be 55 DEG C or so.
Embodiment two
Fig. 2 is referred to, and the difference of embodiment one is, in the present embodiment two, on the 5th pipeline, positioned at described
Between the pipeline section at the two ends of expansion valve 9, access has switch valve 10 is connected with bypass branch, and the bypass branch.
In this case, when heating, by opening switch valve 10 and closing electric expansion valve 9 so that from indoor set out
Refrigerant without throttling, and pass through bypass branch and be directly entered outdoor heat exchanger 3, so as to the refrigeration from indoor set out
Agent waste heat is realized recycling, and delays outdoor unit frosting；And in defrost, realization persistently heats to room.
Wherein, but preferably necessarily using electromagnetic switch valve 10, expansion valve 9 is preferably still necessarily used switch valve 10
Electric expansion valve 9.
On the basis of the above, the application also provides a kind of air-conditioner, and it includes the air adjustment in above-mentioned any embodiment
System.
The air-conditioner of the application, it can accelerate the defrost process of air conditioner chamber's external heat exchanger 3 under low temperature environment, shortening
The time required to white, so as to extend the time of heating, it is ensured that room comfortableness, the heat pump heating efficiency of air-conditioner is improved, make pump type heat
Air-conditioner adapts to stable operation heating mode under low temperature environment.
Embodiment of above is merely to illustrate the utility model, rather than to limitation of the present utility model.Although with reference to implementation
Example has been described in detail to the utility model, it will be understood by those within the art that, to technology of the present utility model
Scheme carries out various combinations, modification or equivalent, without departure from the spirit and scope of technical solutions of the utility model, all should
Cover in the middle of right of the present utility model.
Claims (8)
1. a kind of air handling system, including：Compressor, indoor heat exchanger, outdoor heat exchanger and for adjust refrigerant flowing
The four-way valve in direction, it is characterised in that the shell of the compressor is provided with regenerative apparatus, for absorbing and stores the compression
The used heat of machine shell, the regenerative apparatus is provided with the electric heater for supplementary heating；The gas outlet connection the of the compressor
The entrance of one triple valve, the first outlet of first triple valve connects the four-way valve first interface by the first pipeline, and
By the regenerative apparatus, the second outlet of first triple valve connects four-way valve the to first pipeline by the second pipeline
One interface；The second interface of the four-way valve and the 3rd interface connect the indoor heat exchanger and the outdoor heat exchanger respectively；
4th interface of the four-way valve connects the gas returning port of the compressor.
2. air handling system according to claim 1, it is characterised in that the outdoor heat exchanger is connected by the 5th pipeline
Connect and be connected with expansion valve on indoor heat exchanger, and the 5th pipeline；On 5th pipeline, positioned at the expansion valve two ends
Between pipeline section, access has on bypass branch, and the bypass branch and is connected with switch valve.
3. air handling system according to claim 1, it is characterised in that the 4th interface connection second of the four-way valve
The entrance of triple valve, the first outlet of second triple valve connects the gas returning port of the compressor, and institute by the 3rd pipeline
The 3rd pipeline is stated by the regenerative apparatus, the second outlet of second triple valve connects the compressor by the 4th pipeline
Gas returning port.
4. air handling system according to claim 3, it is characterised in that be connected with gas-liquid separation on the 4th pipeline
Device.
5. air handling system according to claim 1, it is characterised in that the regenerative apparatus is phase transition heat accumulation unit.
6. air handling system according to claim 5, it is characterised in that the phase transition heat accumulation unit includes and the pressure
The accumulation of heat casing of the shell laminating of contracting machine, and the heat-storing material in the accumulation of heat casing is filled in, the heat-storing material includes
Paraffin and vulcanization expanded graphite.
7. air handling system according to claim 1, it is characterised in that the electric heater is PTC electrically heated rods.
8. a kind of air-conditioner, it is characterised in that including the air handling system described in any one in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621155940.9U CN206274195U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system and air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621155940.9U CN206274195U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system and air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274195U true CN206274195U (en) | 2017-06-23 |
Family
ID=59062690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621155940.9U Active CN206274195U (en) | 2016-10-31 | 2016-10-31 | A kind of air handling system and air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440458A (en) * | 2016-10-31 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
-
2016
- 2016-10-31 CN CN201621155940.9U patent/CN206274195U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106440458A (en) * | 2016-10-31 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
| CN106440458B (en) * | 2016-10-31 | 2022-05-27 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206274211U (en) | Heat accumulating type air-source heat pump air conditioning system and the air-conditioning comprising it | |
| CN105276833B (en) | A kind of solar water heating system and heat pump heat refrigeration system and its method | |
| CN109028650A (en) | A kind of multi-gang air-conditioner hot water integrated machine | |
| CN206269278U (en) | Air-source heat pump air conditioning system and the air-conditioning comprising it | |
| CN109282401A (en) | Separate heat pipe air-conditioning and its control method | |
| CN105605841A (en) | Air conditioning system and defrosting control method thereof | |
| CN105698450A (en) | Air conditioner system and defrosting control method of air conditioner system | |
| CN106500213B (en) | Air conditioning system, air conditioner and air conditioning method | |
| CN106152593A (en) | A kind of heat pump type air conditioner does not shut down defrosting system and method | |
| CN206281095U (en) | A kind of air handling system and air-conditioner | |
| CN101801168A (en) | Novel multifunctional self-regulating-temperature machine cabinet | |
| CN103388922A (en) | Dual-compressor multifunctional air source heat pump air conditioner system | |
| CN209415818U (en) | A kind of air-conditioning system | |
| CN106288487A (en) | One drags many air-conditionings and control method thereof | |
| CN106585324A (en) | Overhead type heat pump type carriage air-conditioning system with total heat recovery apparatus | |
| CN206274195U (en) | A kind of air handling system and air-conditioner | |
| CN206269344U (en) | Air conditioner heat exchange system and air-conditioning | |
| CN206637885U (en) | Air-conditioning system | |
| CN106440458A (en) | Air conditioning system, air conditioner and air conditioning method | |
| CN205747624U (en) | Air conditioning system | |
| CN205690526U (en) | Air-conditioner | |
| CN107940563A (en) | A kind of indoor apparatus of air conditioner and air-conditioning | |
| CN209197011U (en) | Air-conditioning system | |
| CN106247711A (en) | A kind of heat pump type air conditioner defrosting system and method | |
| CN106403423A (en) | Air conditioner defrosting system and method and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |