CN105864888A - Microchannel heat exchanger and air conditioner - Google Patents
Microchannel heat exchanger and air conditioner Download PDFInfo
- Publication number
- CN105864888A CN105864888A CN201610203207.8A CN201610203207A CN105864888A CN 105864888 A CN105864888 A CN 105864888A CN 201610203207 A CN201610203207 A CN 201610203207A CN 105864888 A CN105864888 A CN 105864888A
- Authority
- CN
- China
- Prior art keywords
- micro
- channel
- heat exchanger
- flat
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a microchannel heat exchanger and an air conditioner and relates to the technical field of air conditioners. The microchannel heat exchanger and the air conditioner are invented to solve the problem that in the prior art, heat exchange wind resistance and heat transfer resistance are increased due to the fact that condensate water or defrosted water at the roots of fins are not liable to be guided out. The microchannel heat exchanger comprises microchannel flat pipes arranged transversely. The upper surfaces of the microchannel flat pipes incline downwards from the windward side to the leeward side of the microchannel heat exchanger. The microchannel heat exchanger is used for conducting heat exchange with airflow.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of micro-channel heat exchanger and air-conditioning
Device.
Background technology
Micro-channel heat exchanger is a kind of heat-exchange apparatus being usually used in field of air conditioning, especially at air
The field application of source heat pump is more.
Fig. 1 is the structural representation of micro-channel heat exchanger in prior art, laterally puts including some
The micro-channel flat 01 put, micro-channel flat 01 two ends respectively connect a header, afflux
Pipe connects with micro-channel flat 01, is also equiped with some fins between adjacent micro-channel flat
02, fin 02 is installed between micro-channel flat 01, with fin 02 in micro-channel flat 01
The upper and lower surface being connected is plane.
In prior art when micro-channel heat exchanger freezes as evaporimeter, air passes wing
Space between sheet 02 carries out heat exchange with the refrigerant in micro-channel flat 01, and refrigerant absorbs heat sky
Moisture condensation in gas, after condensed water condenses in the surface of fin 02, and along fin 02
Surface flow to root, and because of the surface tension effects of water, condensed water can be in micro-channel flat 01
The position accumulation connected with fin 02 root；In like manner, when micro-channel heat exchanger is as condenser
When defrosting, produce substantial amounts of defrosting water during defrosting and also can accumulate at this, it is difficult to row
Going out, such air-flow can be right in the region of water accumulation in micro-channel flat, micro-channel flat
Air-flow produces resistance, thus increases the heat exchange wind resistance of micro-channel heat exchanger；And in this region
Interior air-flow is opened by water segregation with micro-channel flat, and air-flow can not directly change with micro-channel flat
Heat, causes the heat transfer resistance of micro-channel heat exchanger to increase.
Summary of the invention
Embodiments of the invention provide a kind of micro-channel heat exchanger and air-conditioner, it is possible to resolve existing skill
In art, condensed water or the defrosting water of fin root are difficult to derive and increase heat exchange wind resistance and heat transfer heat
The problem of resistance.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of micro-channel heat exchanger, including the micro-channel flat of horizontally set, described microchannel is flat
The upper surface of pipe is downward-sloping to the direction of leeward side along the windward side of micro-channel heat exchanger.
The invention also discloses a kind of air-conditioner, change including the microchannel described in technique scheme
Hot device, the air side of described blower fan is towards the windward side of described micro-channel heat exchanger.
The micro-channel heat exchanger of embodiment of the present invention offer and air-conditioner, due to micro-channel flat
Upper surface is downward-sloping, in microchannel to the direction of leeward side along the windward side of micro-channel heat exchanger
The condensed water or the defrosting neatly that produce when heat exchanger freezes or heats fall micro-channel flat
Upper surface time, under the blowing of gravity and air-flow, condensed water or defrosting water overcome surface and open
The effect of power, rapidly along the micro-channel flat upper surface tilted from micro-channel heat exchanger windward
Effluent is discharged to leeward side, and therefore, the drainage efficiency of micro-channel heat exchanger is higher, reduces
The heat exchange wind resistance of micro-channel heat exchanger and heat transfer resistance.
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 schematic cross-section of micro-channel heat exchanger in prior art；
Fig. 2 is the structural representation of micro-channel heat exchanger in the embodiment of the present invention；
Fig. 3 is the schematic cross-section of micro-channel heat exchanger in the embodiment of the present invention.
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.
Micro-channel heat exchanger include two headers, be installed between two headers some micro-
Passage flat tube and be arranged at the fin between adjacent two micro-channel flat, along micro-channel flat
Axis, fin is uniformly distributed, and air-flow gap between side two fin of fin is blown to wing
The opposite side of sheet, in the process, air-flow and the heat transferring medium in micro-channel flat carry out heat friendship
Change, thus realize air-flow and heat up or the function of cooling.
With reference to Fig. 2～3, the micro-channel heat exchanger of the embodiment of the present invention, micro-including horizontally set
Passage flat tube 1, especially, in figure, arrow show the direction of blowing of wind, micro-channel flat 1
Upper surface downward-sloping to the direction of leeward side along the windward side of micro-channel heat exchanger.
The micro-channel heat exchanger that the embodiment of the present invention provides, due to the upper surface of micro-channel flat 1
Downward-sloping, at micro-channel heat exchanger to the direction of leeward side along the windward side of micro-channel heat exchanger
The condensed water or the defrosting neatly that produce when freezing or heat fall the upper of micro-channel flat 1
During surface, under the blowing of gravity and air-flow, condensed water or defrosting water overcome capillary work
With, flow rapidly along micro-channel flat 1 upper surface tilted from the windward side of micro-channel heat exchanger
Being discharged to leeward side, therefore, the drainage efficiency of micro-channel heat exchanger is higher, reduces micro-logical
The heat exchange wind resistance of road heat exchanger and heat transfer resistance.
In order to further enhance the water conservancy diversion effect of micro-channel heat exchanger, by micro-channel flat 1 time
The windward side that surface is also configured as along micro-channel heat exchanger is downward-sloping to the direction of leeward side
Structure, can facilitate water along the lower surface discharge of micro-channel flat.
Further, because the wall thickness of micro-channel flat own is relatively thin and basal area is little, microchannel is flat
Managing extruded technology difficulty relatively big, preferably, therefore, the embodiment of the present invention uses micro-logical
The upper and lower surface of road flat tube is the technical scheme of parallel construction, relative micro-channel flat
The scheme that upper and lower surface gradient is different, the contour structures of micro-channel flat is more regular, mould
Tool design difficulty is less, and microchannel flat pipe mould is cooled down, heat and insulation etc.
During subsequent technique, mould hot-spot or supercooling can be reduced and produce damage.
Specifically, the micro-channel heat exchanger of the embodiment of the present invention includes that multiple parallel and interval is arranged
Micro-channel flat, and between two adjacent micro-channel flat, be provided with fin 2, wherein,
Fin 2 is perpendicular to the axis of micro-channel flat 1 and installs, the surface of fin 2 and micro-channel flat
1 is vertical.Preferably, in the embodiment of the present invention, the lower edges of fin 2 is micro-with adjacent respectively
The upper bottom profiled in passage flat tube cross section matches, as it is shown on figure 3, when micro-channel flat upper,
When lower surface is the plane tilted, fin is parallelogram sturcutre, flow to microchannel, upper strata flat
The water of the upper surface edge of pipe, can directly connect with this micro-channel flat lower surface along fin
Gap flow to fin surface, water velocity is fast, thus, the drainage efficiency of micro-channel heat exchanger
Higher.
Further, if the dual-side of fin 2 exceeds the dual-side of micro-channel flat 1, because of
The structural strength of fin 2 is relatively low, when transport or dismounting, protrudes from the wing of micro-channel flat 1
Sheet is easily impaired because colliding with, and when wind speed is bigger, fin 2, by gas shock, holds
Easily shaking, fin 2 clashes into micro-channel flat 1 for a long time, and fin can be caused abrasion occur also
Accelerate the aging deformation of fin.It is therefore preferred that the embodiment of the present invention is by the both sides of fin 2
While be set to the structure of the dual-side without departing from micro-channel flat 1, fin 2 and micro-channel flat
1 fixed effect is more preferable, is not likely to produce vibrations, and fin also will not when dismounting or transport quilt
Bump to.
In order to strengthen the heat exchange efficiency of micro-channel flat, it is preferable that the micro-of the embodiment of the present invention is led to
The inwall of road flat tube 1 be provided with can the fin 3 of heat conduction, fin 3 adds micro-channel flat 1
Heat exchange area, thus strengthen the heat exchange efficiency of micro-channel heat exchanger.
Further, above-mentioned multiple fins are uniformly distributed in the inwall of micro-channel flat 1,
Make the heat exchange area in each region in micro-channel flat identical, prevent hot-spot or supercooling, and lead
Cause that heat transfer effect is the best or frosting.
Additionally, include multiple microchannel in micro-channel flat, it is equipped with above-mentioned in each microchannel
Fin.Preferably, the heat exchange area of multiple microchannels is identical, correspondingly, in each microchannel
It is configured to fin quantity the most identical, therefore, the heat exchange area of each microchannel in micro-channel flat
Equivalent increases.
In order to heat transferring medium being evenly distributed to each micro-channel flat, above-mentioned Thermal Performance of Micro Channels
Device also includes two headers being vertically arranged 4, and multiple micro-channel flat are respectively positioned on header 4
Between, and each micro-channel flat is all connected with two headers 4, heat transferring medium is by side
Header distribution to after in each micro-channel flat 1, enter back in micro-channel flat is multiple micro-
Passage, finally in the header of opposite side, makes heat transferring medium be convergeed to together, through pipeline
Enter next stroke.Because header is for being vertically arranged, therefore, heat transferring medium can be with reversed flow
Dynamic, make micro-channel heat exchanger be capable of refrigeration or heat-production functions.
The embodiment of the present invention also includes a kind of air-conditioner, have employed above-mentioned all of Thermal Performance of Micro Channels
Device, the air side of blower fan is towards the windward side of micro-channel heat exchanger.Air-conditioner include indoor set and
It is provided with heat-exchanger rig, because of this micro-channel heat exchanger both in off-premises station, indoor set and off-premises station
Can be as condenser, it is possible to evaporimeter uses, so indoor set or indoor set all can use this micro-
Channel heat exchanger is as heat-exchanger rig.Due to the microchannel installed in the air-conditioner of the present embodiment
Heat exchanger and the micro-channel heat exchanger structure of offer in each embodiment of above-mentioned micro-channel heat exchanger
Identical, therefore the two can solve the problem that identical technical problem, and reaches identical Expected Results.
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 (10)
1. a micro-channel heat exchanger, including the micro-channel flat of horizontally set, it is characterised in that
The upper surface of described micro-channel flat along micro-channel heat exchanger windward side to leeward side direction to
Lower inclination.
Micro-channel heat exchanger the most according to claim 1, it is characterised in that described micro-logical
The lower surface of road flat tube is downward-sloping to the direction of leeward side along the windward side of micro-channel heat exchanger.
Micro-channel heat exchanger the most according to claim 2, it is characterised in that described micro-logical
The upper and lower surface of road flat tube is parallel.
4. according to the micro-channel heat exchanger according to any one of claims 1 to 3, it is characterised in that
Described micro-channel flat is multiple, and multiple described micro-channel flat are parallel and interval is arranged, adjacent
Connect between two micro-channel flat and have fin, the surface of described fin and described micro-channel flat
Axis is vertical, the cross section lower whorl of the upper edge of described fin and the micro-channel flat being positioned above
Exterior feature matches, the cross section of the lower edge of described fin and the described micro-channel flat being disposed below
Upper profile matches.
Micro-channel heat exchanger the most according to claim 4, it is characterised in that described fin
Dual-side without departing from the both sides of described micro-channel flat.
6. according to the micro-channel heat exchanger according to any one of claims 1 to 3, it is characterised in that
The inwall of described micro-channel flat is provided with can the fin of heat conduction.
Micro-channel heat exchanger the most according to claim 6, it is characterised in that described fin
For multiple and be uniformly distributed in the inwall of described micro-channel flat.
Micro-channel heat exchanger the most according to claim 6, it is characterised in that described micro-logical
Include in road flat tube multiple microchannel, in each described microchannel, being equipped with described fin.
Micro-channel heat exchanger the most according to claim 4, it is characterised in that also include two
The individual header being vertically arranged, multiple described micro-channel flat between two described headers,
And the two ends of each described micro-channel flat connect with two described headers respectively.
10. an air-conditioner, including blower fan, it is characterised in that also include claim 1～9
According to any one of micro-channel heat exchanger, the air side of described blower fan is changed towards described microchannel
The windward side of hot device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203207.8A CN105864888A (en) | 2016-04-01 | 2016-04-01 | Microchannel heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203207.8A CN105864888A (en) | 2016-04-01 | 2016-04-01 | Microchannel heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105864888A true CN105864888A (en) | 2016-08-17 |
Family
ID=56628058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610203207.8A Pending CN105864888A (en) | 2016-04-01 | 2016-04-01 | Microchannel heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105864888A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225328A (en) * | 2016-09-09 | 2016-12-14 | 珠海格力电器股份有限公司 | Microchannel heat exchanger fluid channel, flat pipe, microchannel heat exchanger and air conditioning equipment |
| CN106337473A (en) * | 2016-09-20 | 2017-01-18 | 于林静 | Air water-producing machine capable of preventing water generated by evaporator from flowing around |
| CN107860248A (en) * | 2017-10-27 | 2018-03-30 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger and air conditioner |
| CN108073255A (en) * | 2016-11-10 | 2018-05-25 | 英业达科技有限公司 | Heat dissipation row and servomechanism cooling system |
| CN110118455A (en) * | 2019-04-15 | 2019-08-13 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN110476034A (en) * | 2018-03-13 | 2019-11-19 | 日立江森自控空调有限公司 | Heat exchanger and the air conditioner for having the heat exchanger |
| CN112303949A (en) * | 2020-09-22 | 2021-02-02 | 珠海格力电器股份有限公司 | Control method of heat pump system based on micro-channel heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004085017A (en) * | 2002-08-26 | 2004-03-18 | Miyaden Co Ltd | Air conditioner |
| CN101493296A (en) * | 2009-02-27 | 2009-07-29 | 赵耀华 | Novel flat-plate heat pipe with stratose microflute subfebrile temperature tube group |
| CN201449172U (en) * | 2009-05-15 | 2010-05-05 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger with drainage function |
| CN105352345A (en) * | 2015-11-16 | 2016-02-24 | Tcl空调器(中山)有限公司 | Microchannel heat exchanger and air conditioner thereof |
-
2016
- 2016-04-01 CN CN201610203207.8A patent/CN105864888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004085017A (en) * | 2002-08-26 | 2004-03-18 | Miyaden Co Ltd | Air conditioner |
| CN101493296A (en) * | 2009-02-27 | 2009-07-29 | 赵耀华 | Novel flat-plate heat pipe with stratose microflute subfebrile temperature tube group |
| CN201449172U (en) * | 2009-05-15 | 2010-05-05 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger with drainage function |
| CN105352345A (en) * | 2015-11-16 | 2016-02-24 | Tcl空调器(中山)有限公司 | Microchannel heat exchanger and air conditioner thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225328A (en) * | 2016-09-09 | 2016-12-14 | 珠海格力电器股份有限公司 | Microchannel heat exchanger fluid channel, flat pipe, microchannel heat exchanger and air conditioning equipment |
| CN106337473A (en) * | 2016-09-20 | 2017-01-18 | 于林静 | Air water-producing machine capable of preventing water generated by evaporator from flowing around |
| CN108073255A (en) * | 2016-11-10 | 2018-05-25 | 英业达科技有限公司 | Heat dissipation row and servomechanism cooling system |
| CN107860248A (en) * | 2017-10-27 | 2018-03-30 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger and air conditioner |
| CN107860248B (en) * | 2017-10-27 | 2023-12-22 | 珠海格力电器股份有限公司 | Microchannel heat exchanger and air conditioner |
| CN110476034A (en) * | 2018-03-13 | 2019-11-19 | 日立江森自控空调有限公司 | Heat exchanger and the air conditioner for having the heat exchanger |
| CN110118455A (en) * | 2019-04-15 | 2019-08-13 | 合肥华凌股份有限公司 | Refrigeration equipment |
| CN112303949A (en) * | 2020-09-22 | 2021-02-02 | 珠海格力电器股份有限公司 | Control method of heat pump system based on micro-channel heat exchanger |
| CN112303949B (en) * | 2020-09-22 | 2021-10-26 | 珠海格力电器股份有限公司 | Control method of heat pump system based on micro-channel heat exchanger |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |