CN106091486A - Heat exchanger and there is its air-conditioner - Google Patents
Heat exchanger and there is its air-conditioner Download PDFInfo
- Publication number
- CN106091486A CN106091486A CN201610565840.1A CN201610565840A CN106091486A CN 106091486 A CN106091486 A CN 106091486A CN 201610565840 A CN201610565840 A CN 201610565840A CN 106091486 A CN106091486 A CN 106091486A
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- China
- Prior art keywords
- refrigerant pipeline
- heat exchanger
- refrigerant
- pipeline
- outlet
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- 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.)
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Classifications
-
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/02—Details of evaporators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a kind of heat exchanger and there is its air-conditioner.Heat exchanger includes that heat exchanger body, heat exchanger body have multiple refrigerant pipeline import and the outlet of multiple refrigerant pipeline, and the number of multiple refrigerant pipeline imports is less than the number of multiple refrigerant pipelines outlet.The quantity so arranging the inlet pipe making heat exchanger lead to coolant goes out the quantity of pipe less than coolant, efficiently with entering the indoor heat exchanger stream having more less, i.e. density at heat exchanger is different from leaving vaporizer having just enter into the density at indoor heat exchanger to utilize cold-producing medium, entering features the most different from the mean flow rate left at indoor heat exchanger at indoor heat exchanger, improve the mass velocity of low mass dryness fraction district cold-producing medium, thus improve heat-transfer effect, and reduce pipeline fitting manufacturing cost, improve production efficiency.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to a kind of heat exchanger and the air-conditioner with it.
Background technology
Air conditioning system is mainly made up of compressor, condenser, throttle part, vaporizer, and its refrigeration system operation principle is such as
Shown in lower Fig. 1: the refrigerant gas of low-temp low-pressure through compressor 2 compression formed High Temperature High Pressure superheated refrigerant gas after, from
Compressor 2 is discharged, enters condenser 1 and be condensed into the subcooled liquid of middle temperature high pressure, become low temperature through throttle part 4 reducing pressure by regulating flow
Low-pressure gas-liquid two-phase mixture.Heat inside vaporizer 3 absorption chamber becomes low temperature low pressure gas and returns compressor 2 again
In, complete whole kind of refrigeration cycle.In refrigeration systems, vaporizer (indoor heat exchanger) is the equipment of output cold, and cold-producing medium exists
Vaporizer absorbs the heat of object to be cooled, thus reaches to produce the purpose of cold.Air-conditioning indoor heat exchanger is as air-conditioning system
One of four big parts of system, the reasonability of its flow path designs directly influences the height of air-conditioning exchange capability of heat, sets in air conditioning system
Meter plays vital effect.
Current indoor heat exchanger flow path designs is commonly N and enters the stream that N goes out, as shown in Figures 2 and 3, this indoor heat exchanger
The refrigerant inlet R of stream has 8, corresponding, and the outlet C of cold-producing medium also has 8, is 8 to enter 8 and go out stream.Existing change
The heat exchange property of hot device is low, and pipeline fitting manufacturing cost is high.
Summary of the invention
Present invention is primarily targeted at and a kind of heat exchanger is provided and there is its air-conditioner, of the prior art to solve
The low problem of heat exchange property of heat exchanger.
To achieve these goals, according to an aspect of the invention, it is provided a kind of heat exchanger, including: heat exchanger is originally
Body, heat exchanger body has multiple refrigerant pipeline import and the outlet of multiple refrigerant pipeline, and the number of multiple refrigerant pipeline imports is little
In the number that multiple refrigerant pipelines export.
Further, during at least one the refrigerant pipeline import in multiple refrigerant pipeline imports exports with multiple refrigerant pipelines
At least two refrigerant pipeline outlet be connected.
Further, heat exchanger also includes: the first refrigerant pipeline, and the first end of the first refrigerant pipeline is arranged in refrigerant pipeline
Import department;Second refrigerant pipeline, the first end of the second refrigerant pipeline and the first end of the first refrigerant pipeline are connected, the second coolant
Pipeline is between refrigerant pipeline import and refrigerant pipeline export;3rd refrigerant pipeline, the first end of the 3rd refrigerant pipeline wears
It is connected in refrigerant pipeline exit and with the second end of the second refrigerant pipeline.
Further, heat exchanger also includes diverter, and the first end of the first refrigerant pipeline passes through diverter and the second coolant
First end of pipeline is connected.
Further, multiple refrigerant pipeline imports include the first refrigerant pipeline import, and the outlet of multiple refrigerant pipelines includes the
One refrigerant pipeline outlet and the outlet of the second refrigerant pipeline, the first refrigerant pipeline outlet and the second refrigerant pipeline exit are respectively provided with
Having corresponding 3rd refrigerant pipeline, the second end of the second refrigerant pipeline exports and the second refrigerant pipeline with the first refrigerant pipeline respectively
3rd refrigerant pipeline in exit is connected.
Further, the second refrigerant pipeline includes that at least one U-tube road, the first refrigerant pipeline and the 3rd refrigerant pipeline are logical
Cross U-tube road to be connected.
Further, diverter is tee T and/or four-way pipe.
Further, each refrigerant pipeline import is all connected with two refrigerant pipeline outlets.
Further, heat exchanger includes the first refrigerant pipeline and the 3rd refrigerant pipeline being interconnected, the first refrigerant pipeline
Being multiple with the 3rd refrigerant pipeline, the first end of multiple first refrigerant pipelines is arranged with refrigerant pipeline import one_to_one corresponding, many
Second end of individual first refrigerant pipeline collects the formation total road of refrigerant pipeline import, the first end of multiple 3rd refrigerant pipelines and coolant
Tube outlet one_to_one corresponding is arranged, and the second end of the 3rd refrigerant pipeline collects formation refrigerant pipeline and exports total road.
According to another aspect of the present invention, it is provided that a kind of air-conditioner, including heat exchanger, heat exchanger is above-mentioned heat exchange
Device.
Application technical scheme, heat exchanger includes that heat exchanger body, heat exchanger body have multiple refrigerant pipeline
Import and the outlet of multiple refrigerant pipeline, the number of multiple refrigerant pipeline imports is less than the number of multiple refrigerant pipelines outlet.So
The quantity arranging the inlet pipe making heat exchanger lead to coolant goes out the quantity of pipe less than coolant, changes efficiently with entering the indoor having more less
Hot device stream, i.e. density at heat exchanger is not with leaving vaporizer having just enter into the density at indoor heat exchanger to utilize cold-producing medium
With, enter features the most different from the mean flow rate left at indoor heat exchanger at indoor heat exchanger, improve low mass dryness fraction district system
The mass velocity of cryogen, thus improve heat-transfer effect, and reduce pipeline fitting manufacturing cost, improve production efficiency.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows air-conditioner fundamental diagram in prior art;
Fig. 2 shows that in prior art, the pipeline of heat exchanger walks pipe schematic diagram;
Fig. 3 shows the channel interior structural representation of the heat exchanger in Fig. 2;
Fig. 4 shows the structural representation of the embodiment of the heat exchanger according to the present invention;
Fig. 5 shows the structural blast figure of the embodiment of heat exchanger in Fig. 4;And
Fig. 6 shows that in Fig. 4, the pipeline of the embodiment of heat exchanger walks tubular construction schematic diagram.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, heat exchanger body;20, the first refrigerant pipeline;30, the second refrigerant pipeline;31, U-tube road;32, U-tube road;
40, the 3rd refrigerant pipeline;51, the first refrigerant pipeline import;52, the first refrigerant pipeline outlet;53, the second refrigerant pipeline outlet;
60, tee T.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
It should be noted that term used herein above merely to describe detailed description of the invention, and be not intended to restricted root
Illustrative embodiments according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when using term " to comprise " in this manual and/or " bag
Include " time, it indicates existing characteristics, step, operation, device, assembly and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so use
Term can exchange in the appropriate case, in order to presently filed embodiment described herein such as can be with except here
Order beyond those of diagram or description is implemented.Additionally, term " includes " and " having " and their any deformation, it is intended that
It is to cover non-exclusive comprising, such as, contains series of steps or the process of unit, method, system, product or equipment not
Be necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing or for these processes, side
Other step that method, product or equipment are intrinsic or unit.
For the ease of describing, space relative terms here can be used, as " ... on ", " ... top ",
" at ... upper surface ", " above " etc., be used for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms is intended to comprise except the described in the drawings orientation of device
Outside different azimuth in use or operation.Such as, if the device in accompanying drawing is squeezed, then it is described as " at other devices
Part or structure above " or " other devices or structure on " device after will be positioned as " other devices or construct under
Side " or " under other devices or structure ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.This device can also other different modes location (90-degree rotation or be in other orientation), and
And space used herein above described relatively make respective explanations.
Now, the illustrative embodiments according to the application it is more fully described with reference to the accompanying drawings.But, these are exemplary
Embodiment can be implemented by multiple different form, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be appreciated that these embodiments are provided so that disclosure herein is thorough and complete, and these are shown
The design of example embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make to be presented with like reference characters identical device, thus by omitting, they are retouched
State.
As shown in Figure 4, according to one embodiment of present invention, it is provided that a kind of heat exchanger.This heat exchanger includes heat exchanger
Body 10.Heat exchanger body 10 has multiple refrigerant pipeline import and the outlet of multiple refrigerant pipeline, multiple refrigerant pipeline imports
Number is less than the number of multiple refrigerant pipelines outlet.
Generally, the mass dryness fraction at evaporator inlet of the cold-producing medium after throttling is 20%, at evaporator outlet
Mass dryness fraction be 100%, then cold-producing medium is different in the density having just enter into the density at indoor heat exchanger from leave at indoor heat exchanger,
The most different from the mean flow rate left at indoor heat exchanger entering at indoor heat exchanger, and N enters N and goes out the inlet pipe number etc. of i.e. coolant
In the defect problem that the indoor heat exchanger stream going out pipe number of coolant does not has in view of the program.Therefore, in this enforcement
In example, use and enter the indoor heat exchanger stream having more less, utilize cold-producing medium having just enter into the density at indoor heat exchanger and leaving
Density at vaporizer i.e. heat exchanger is different, at entrance indoor heat exchanger with the mean flow rate left at indoor heat exchanger the most not
Same feature, improves the mass velocity of low mass dryness fraction district cold-producing medium, thus improves heat-transfer effect, and reduce pipeline fitting manufacturing cost,
Improve production efficiency.And then improve the heat exchange property of heat exchanger.
Further, during at least one the refrigerant pipeline import in multiple refrigerant pipeline imports exports with multiple refrigerant pipelines
At least two refrigerant pipeline outlet be connected.Use and enter the indoor heat exchanger flow passage structure having more less, fully take into account refrigeration
Agent is different in the density having just enter into the density at indoor heat exchanger from leave at indoor heat exchanger, enter at indoor heat exchanger with
Leave the feature that the mean flow rate at indoor heat exchanger is the most different so that the refrigerant mass flow rate in low mass dryness fraction district is improved,
Compared with entering, with traditional N, the vaporizer that N goes out, constant at heat exchanger area, reduce in the case of evaporator pipeline part cost, heat exchange
Ability and Energy Efficiency Ratio all obtain certain raising.
As shown in Figures 3 to 6, heat exchanger also includes the first refrigerant pipeline the 20, second refrigerant pipeline 30 and the 3rd refrigerant pipe
Road 40.First end of the first refrigerant pipeline 20 is arranged in refrigerant pipeline import department.First end and first of the second refrigerant pipeline 30
First end of refrigerant pipeline 20 is connected, the second refrigerant pipeline 30 between refrigerant pipeline import and refrigerant pipeline export, the
First end of three refrigerant pipelines 40 is arranged in refrigerant pipeline exit and the second end with the second refrigerant pipeline 30 is connected.So
Setting can be effectively improved the heat exchange property of heat exchanger.
Wherein, heat exchanger also includes diverter.First end of the first refrigerant pipeline 20 passes through diverter and the second refrigerant pipe
First end on road 30 is connected.So arrange and can be good at realizing the shunting action of coolant.
Preferably, it is less than out the quantity of pipe to realize the quantity of inlet pipe further, diverter can be set to three
Siphunculus and four-way pipe.It can also be the one of which of tee T and four-way pipe.
Referring again to shown in Fig. 4 and Fig. 5, multiple refrigerant pipeline imports include the first refrigerant pipeline import 51, multiple coolant
Tube outlet includes the first refrigerant pipeline outlet 52 and the second refrigerant pipeline outlet 53, and the first refrigerant pipeline outlet 52 and second is cold
Being respectively arranged with corresponding 3rd refrigerant pipeline 40 at matchmaker's tube outlet 53, the second end of the second refrigerant pipeline 30 is respectively with first
Refrigerant pipeline outlet 52 exports the 3rd refrigerant pipeline 40 at 53 with the second refrigerant pipeline and is connected.I.e. one matchmaker's pipeline import with
Two matchmaker's tube outlet one_to_one corresponding, so arrange and can efficiently reduce refrigerant pipeline inlet pipe quantity, then improve heat exchange
The heat exchange property of device.Preferably, each refrigerant pipeline import is all connected with two refrigerant pipeline outlets.
Further, the second refrigerant pipeline 30 includes at least one U-tube road 31, the first refrigerant pipeline 20 and the 3rd coolant
Pipeline 40 is connected by U-tube road 31.So arrange and can effectively increase by the second refrigerant pipeline 30 within heat exchanger
Heat exchange area.As shown in Figure 6, the second refrigerant pipeline 30 also includes that U-tube road 32, U-tube road 31 set with compartment of terrain, U-tube road 32
Put the inside at heat exchanger.
As shown in Figure 6, heat exchanger includes the first refrigerant pipeline 20 and the 3rd refrigerant pipeline 40 being interconnected, the first coolant
Pipeline 20 and the 3rd refrigerant pipeline 40 are multiple, the first end of multiple first refrigerant pipelines 20 and refrigerant pipeline import one a pair
Should arrange, the second end of multiple first refrigerant pipelines 20 collects the formation total road of refrigerant pipeline import, multiple 3rd refrigerant pipelines 40
The first end and refrigerant pipeline outlet one_to_one corresponding arrange, the second end of the 3rd refrigerant pipeline 40 collects formation refrigerant pipeline outlet
Total road.So arrange in making coolant carry out after passing through the total road of refrigerant pipeline import branching to the first refrigerant pipeline 20 and enter
In heat exchanger, it is then passed through the 3rd refrigerant pipeline 40 and flows out that then the coolant after heat exchange is collected to refrigerant pipeline outlet is total
Discharge at road.
Heat exchanging pipe is made up of U-tube road, eyesight elbow and tee T 60.Indoor heat exchanger uses 4 to enter the 8 streams replacements gone out
8 originally are entered 8 and are gone out stream.As shown in Figure 6, cold-producing medium flows separately through threeway (diverter) from import R1, R2, R3, R4 and is respectively divided into
Two-way, a road flows through 6 root length U-tube roads out, and 5 root length U-tube roads are flow through out in another road, and (C1~C8 divides totally 8 way outlet C
Wei the outlet of cold-producing medium), then be aggregated into indoor heat exchanger general export Cz and return to compressor and complete whole kind of refrigeration cycle.
Few enter to have more compared with the indoor heat exchanger of stream enters, with traditional N, the vaporizer that N goes out, constant at heat exchanger area
In the case of, not only the cost of stream pipeline fitting reduces, and heat exchange property also increases.Through the heat exchange to both streams
Device carries out performance test and can obtain, the indoor heat exchanger stream of the present embodiment compared with original heat exchanger flow circuit, refrigerating capacity and
Energy Efficiency Ratio all improves 1%.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a heat exchanger, it is characterised in that including:
Heat exchanger body (10), described heat exchanger body (10) has multiple refrigerant pipeline import and the outlet of multiple refrigerant pipeline,
The number of the plurality of refrigerant pipeline import is less than the number of the plurality of refrigerant pipeline outlet.
Heat exchanger the most according to claim 1, it is characterised in that at least one institute in the plurality of refrigerant pipeline import
State refrigerant pipeline outlet described at least two during refrigerant pipeline import exports with the plurality of refrigerant pipeline to be connected.
Heat exchanger the most according to claim 1, it is characterised in that described heat exchanger also includes:
First refrigerant pipeline (20), the first end of described first refrigerant pipeline (20) is arranged in described refrigerant pipeline import department;
Second refrigerant pipeline (30), the first end of described second refrigerant pipeline (30) and the first of described first refrigerant pipeline (20)
End is connected, and described second refrigerant pipeline (30) is between described refrigerant pipeline import and described refrigerant pipeline export;
3rd refrigerant pipeline (40), the first end of described 3rd refrigerant pipeline (40) be arranged in described refrigerant pipeline exit and with
Second end of described second refrigerant pipeline (30) is connected.
Heat exchanger the most according to claim 3, it is characterised in that described heat exchanger also includes diverter, described first cold
First end of matchmaker's pipeline (20) is connected by the first end of described diverter with described second refrigerant pipeline (30).
Heat exchanger the most according to claim 3, it is characterised in that the plurality of refrigerant pipeline import includes the first refrigerant pipe
Road import (51), the outlet of the plurality of refrigerant pipeline includes the first refrigerant pipeline outlet (52) and described second refrigerant pipeline outlet
(53), described first refrigerant pipeline outlet (52) and described second refrigerant pipeline outlet (53) place are respectively arranged with corresponding described
3rd refrigerant pipeline (40), the second end of described second refrigerant pipeline (30) respectively with described first refrigerant pipeline outlet (52) and
Described 3rd refrigerant pipeline (40) at described second refrigerant pipeline outlet (53) place is connected.
Heat exchanger the most according to claim 5, it is characterised in that described second refrigerant pipeline (30) includes at least one U
Shape pipeline (31), described first refrigerant pipeline (20) is connected by described U-tube road (31) with described 3rd refrigerant pipeline (40)
Logical.
Heat exchanger the most according to claim 4, it is characterised in that described diverter is tee T and/or four-way pipe.
Heat exchanger the most according to claim 1, it is characterised in that each described refrigerant pipeline import all with described in two
Refrigerant pipeline outlet is connected.
Heat exchanger the most according to claim 1, it is characterised in that described heat exchanger includes the first refrigerant pipe being interconnected
Road (20) and the 3rd refrigerant pipeline (40), described first refrigerant pipeline (20) and described 3rd refrigerant pipeline (40) are multiple,
First end of multiple described first refrigerant pipelines (20) and described refrigerant pipeline import one_to_one corresponding are arranged, multiple described first cold
Second end of matchmaker's pipeline (20) collect formation the total road of refrigerant pipeline import, the first end of multiple described 3rd refrigerant pipelines (40) with
Described refrigerant pipeline outlet one_to_one corresponding is arranged, and the second end of described 3rd refrigerant pipeline (40) collects formation refrigerant pipeline outlet
Total road.
10. an air-conditioner, including heat exchanger, it is characterised in that described heat exchanger is according to any one of claim 1 to 9
Heat exchanger.
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CN201610565840.1A CN106091486A (en) | 2016-07-15 | 2016-07-15 | Heat exchanger and there is its air-conditioner |
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CN201610565840.1A CN106091486A (en) | 2016-07-15 | 2016-07-15 | Heat exchanger and there is its air-conditioner |
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CN201610565840.1A Pending CN106091486A (en) | 2016-07-15 | 2016-07-15 | Heat exchanger and there is its air-conditioner |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2879059Y (en) * | 2006-01-20 | 2007-03-14 | 广东美的电器股份有限公司 | Evaporator of air conditioner |
CN201081461Y (en) * | 2007-07-16 | 2008-07-02 | 四川长虹电器股份有限公司 | Tubular plate type heat exchanger |
CN201352035Y (en) * | 2009-02-12 | 2009-11-25 | 广东申菱空调设备有限公司 | Liquid separating system of evaporator |
CN102918338A (en) * | 2010-05-27 | 2013-02-06 | 松下电器产业株式会社 | Refrigeration device and cooling and heating device |
CN205860565U (en) * | 2016-07-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Heat exchanger and there is its air-conditioner |
-
2016
- 2016-07-15 CN CN201610565840.1A patent/CN106091486A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2879059Y (en) * | 2006-01-20 | 2007-03-14 | 广东美的电器股份有限公司 | Evaporator of air conditioner |
CN201081461Y (en) * | 2007-07-16 | 2008-07-02 | 四川长虹电器股份有限公司 | Tubular plate type heat exchanger |
CN201352035Y (en) * | 2009-02-12 | 2009-11-25 | 广东申菱空调设备有限公司 | Liquid separating system of evaporator |
CN102918338A (en) * | 2010-05-27 | 2013-02-06 | 松下电器产业株式会社 | Refrigeration device and cooling and heating device |
CN205860565U (en) * | 2016-07-15 | 2017-01-04 | 珠海格力电器股份有限公司 | Heat exchanger and there is its air-conditioner |
Non-Patent Citations (1)
Title |
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何涛: "《动车组车内环境控制系统》", 31 May 2012 * |
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