CN207816049U - Micro-channel heat exchanger and air conditioner - Google Patents
Micro-channel heat exchanger and air conditioner Download PDFInfo
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- CN207816049U CN207816049U CN201721402947.0U CN201721402947U CN207816049U CN 207816049 U CN207816049 U CN 207816049U CN 201721402947 U CN201721402947 U CN 201721402947U CN 207816049 U CN207816049 U CN 207816049U
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- distributing fin
- exchanger tube
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- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000004378 air conditioning Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 49
- 238000010257 thawing Methods 0.000 abstract description 10
- 238000009825 accumulation Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012279 drainage procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a micro-channel heat exchanger and an air conditioner comprising the same, wherein the micro-channel heat exchanger comprises a heat exchange tube; the outer wall of the heat exchange tube is provided with a flow guide groove, and the flow guide groove can collect and guide liquid on the outer wall of the heat exchange tube so as to reduce the amount of the liquid on the outer wall of the heat exchange tube. The diversion groove enables condensed water or defrosting water accumulated on the outer wall of the pipe to be at least partially collected into the diversion groove and discharged through the diversion groove, so that the amount of accumulated water on the outer wall of the heat exchange pipe is reduced, the frosting amount of the outer wall of the heat exchange pipe is reduced under a low-temperature working condition, and the heat exchange efficiency of the heat exchange pipe is increased.
Description
Technical field
The utility model is related to technical field of heat exchange devices, and in particular to a kind of micro-channel heat exchanger and air-conditioning.
Background technology
Corrugated tube type micro-channel heat exchanger has been commonly used for the every field such as automobile, medical treatment, domestic air conditioning, light weight at present
Change, compact-sized, heat exchange efficiency is high, is not easy the characteristics of reviewing by favor.Corrugated tube type micro-channel heat exchanger opens up in flat tube
Multiple holes, to increase refrigerant side heat convection area, to play the role of increasing refrigeration side heat exchange amount.And it conducts heat in wind side
Aspect, setting and the wide waveform heat exchange fin of flat tube usually between adjacent flat tube, by crossing stove welding manner, by fin
Peaks and troughs weld together respectively with two adjacent flat tubes, to reduce heat transfer resistance, increase wind side heat exchange area,
Improve the overall heat exchange efficiency of micro-channel heat exchanger.Heat exchange fin middle section opens a window, and is flowed to air and carries out flow-disturbing, further
Strengthen the heat exchange of wind side.
The structure of tube-strip heat exchanger greatly improves the heat exchange amount of heat exchanger unit area, still, when corrugated tube type is micro- logical
When road heat exchanger makees evaporator in the heat pump system of worst cold case, frost layer can condense on fin and flat tube, using commutationization
After frost, due to the structure of flat tube rectangular cross-section, defrosting water can accumulate on flat tube, flat when switching back into heat pump system again
The quick frosting of meeting causes the frost layer of heat exchanger surface the more to tie the more thick to the water accumulated on pipe in cycles again, and heat exchanger heat exchange amount is not
It is disconnected to reduce, it is out of service to eventually lead to air-conditioning system.
Invention content
In order to solve the above problem of the existing technology, the utility model provides a kind of micro-channel heat exchanger and sky
It adjusts, it is therefore intended that, reduce the accumulation water on micro-channel heat exchanger heat exchanger tube.
Technical solution used by the utility model is：
One side according to the present utility model provides a kind of micro-channel heat exchanger, including heat exchanger tube；
Diversion groove is provided on the outer wall of the heat exchanger tube, the diversion groove can collect and drain the heat exchanger tube
Liquid on outer wall, to reduce burden of the liquid in the heat exchange pipe outer wall.
Preferably, the heat exchanger tube is horizontally disposed flat tube, including upper wall surface, the diversion groove be set on described
At wall surface.
Preferably, the upper wall surface is inclined relative to horizontal, to promote the discharge of liquid on the upper wall surface.
Preferably, at the upper wall surface, the diversion groove is along the direction of the central axis perpendicular to the heat exchanger tube
It is extended.
Preferably, the quantity of the diversion groove is multiple, and multiple diversion grooves are arranged in parallel in the upper wall surface
Place.
Preferably, multiple heat exchanger tubes are vertically alternatively arranged setting, are provided between the two neighboring heat exchanger tube
Waveform heat exchange fin；
The heat exchange fin includes multiple troughs, and the distance between the two neighboring diversion groove is the heat exchange fin
1-5 times of distance between the two neighboring trough.
It is highly preferred that the distance between the two neighboring diversion groove is the two neighboring trough of the heat exchange fin
Between 2-3 times of distance.
Preferably, the heat exchange fin includes multiple wave crests, the diversion groove is set on the upper wall surface, with it is described
At the opposite position of wave crest.
Preferably, the fluid for flowing through the heat exchange fin can be carried out the windowing of flow-disturbing by being provided on the heat exchange fin
Structure.
Preferably, the diversion groove is wedge groove, and wedge-like opening angle is 60 ° -120 °, groove width 0.5-2mm；With/
Or, the groove depth of the diversion groove is not more than the half of the heat exchange tube wall thickness.
Preferably, the micro-channel heat exchanger further includes distributing fin, and the distributing fin, which is fixed on the heat exchanger tube, meets
On the side wall of wind side, to guide the liquid in the heat exchange pipe outer wall to flow on the distributing fin.
Preferably, on a heat exchanger tube, the quantity of the distributing fin is identical as the quantity of the diversion groove,
The distributing fin is corresponded with the diversion groove.
Preferably, when one end of the diversion groove is located at the side-walls of the heat exchanger tube windward side, the water conservancy diversion wing
Piece is set to the at one end, and guide passage is cooperatively formed with the diversion groove.
Preferably, jagged, the shape of the notch is arranged with the matched edge of the heat exchanger tube in the distributing fin
Shape is adapted with the sidewall shape of the heat exchanger tube windward side.
Preferably, when the micro-channel heat exchanger includes multiple heat exchanger tubes, the distributing fin includes multiple institutes
State notch；
Multiple notches are corresponded and are equipped with multiple heat exchanger tubes, enable the distributing fin with it is complete
Heat exchanger tube adaptation connection described in portion.
Preferably, pass through welding manner between the notch of the distributing fin and the side wall of the heat exchanger tube windward side
It is fixedly connected.
Preferably, the distributing fin further includes：
It is set to the first flange of the vertical upper end of the distributing fin, first flange is horizontally disposed；And/or
It is set to the second flange of the distributing fin vertically lower end, second flange is horizontally disposed；And/or
The third flange being set in the middle part of the distributing fin, the third flange is vertically arranged and is led perpendicular to described
Flow fin；
First flange, second flange and the third flange are protruded towards the homonymy of the distributing fin,
Prominent length is identical, for determining the pitch of fins between the adjacent distributing fin in assembly.
Preferably, the assembly through-hole extended along the distributing fin thickness direction is provided on the distributing fin.
Preferably, the distributing fin is arranged at straight panel bar shaped or wavy strip structure, one of the distributing fin
Length edge and the heat exchanger tube are in mating connection.
Preferably, the distributing fin width is 5-30mm, thickness 0.08-0.15mm.
Preferably, the distributing fin is vertically arranged or is obliquely installed relative to vertical direction, and angle of inclination is
Acute angle.
Preferably, when the micro-channel heat exchanger includes the heat exchange fin, the heat exchange fin is wedge angle waveform,
The first unit plate and second unit plate of wedge angle are formed including connection, the distributing fin is parallel to the first unit plate or institute
State the setting of second unit plate.
Another aspect according to the present utility model additionally provides a kind of air-conditioning, including the micro-channel heat exchanger.
The beneficial effects of the utility model are：
1. diversion groove is arranged in heat exchange pipe outer wall, enable the condensed water accumulated at pipe outer wall or defrosting water at least portion
It is collected in diversion groove with dividing, and is discharged via diversion groove, the accumulation water in heat exchange pipe outer wall is advantageously reduced, low
The frosting degree that heat exchange pipe outer wall is reduced under warm operating mode, increases the heat exchange efficiency of heat exchanger tube；
2. distributing fin is arranged in the windward side in heat exchanger tube, not only contributes to increase wind side heat exchange area, improve microchannel
The heat exchange amount of heat exchanger, and heat exchanger tube can be guided directly or by way of cooperatively forming water conservancy diversion runner with diversion groove
On accumulation water flowing to distributing fin on, so that frosting is occurred mainly at distributing fin, be conducive to reduce heat exchanger tube with heat exchange
Frosting degree between pipe on heat exchange fin increases the heat exchange efficiency of micro-channel heat exchanger.Water on distributing fin can vertically be set
The distributing fin set quickly flows down, and the frost on distributing fin can be rapidly separated micro-channel heat exchanger during defrost, to
Achieve the purpose that promote micro-channel heat exchanger Quick drainage or quickly defrosting.
Description of the drawings
Fig. 1 is the structural schematic diagram of micro-channel heat exchanger described in the utility model；
Fig. 2 is partial structurtes enlarged drawing of the micro-channel heat exchanger described in the utility model at B；
Fig. 3 be micro-channel heat exchanger described in the utility model along the sectional view of A-A；
Fig. 4 is the front view of distributing fin described in the utility model；
Fig. 5 is the side view of distributing fin described in the utility model；
Fig. 6 is the right side view of the first header described in the utility model；
Fig. 7 is the structural schematic diagram of another embodiment of micro-channel heat exchanger described in the utility model.
In figure：1, heat exchanger tube；11, upper wall surface；2, diversion groove；3, heat exchange fin；31, trough；32, wave crest；33, it opens a window
Structure；34, first unit plate；35, second unit plate；4, distributing fin；41, the first flange；42, the second flange；43, third is turned over
Side；44, notch；45, through-hole is assembled；5, the first header；51, flat tube slot；6, the second header.
Specific implementation mode
It is to reach the technological means and effect that predetermined purpose is taken for the utility model is expanded on further, below in conjunction with attached
Figure and preferred embodiment, to specific implementation mode, structure, feature and its effect according to the present utility model application, specifically
It is bright as after.In the following description, special characteristic, structure or the feature in one or more embodiments can be by any suitable form groups
It closes.
It should be noted that term "upper", "lower", "left", "right", "vertical", " water in the description of the present invention,
It is flat ", "inner", the direction of instructions such as "outside" or the term of position relationship be direction based on ... shown in the drawings or position relationship, this is only
It is merely for convenience of describing, rather than indicates or imply that described device or element must have a particular orientation, with specific side
Position construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " etc. are only used for
Purpose is described, relative importance is not understood to indicate or imply.
In addition it is also necessary to explanation, in the description of the present invention, unless otherwise clearly defined and limited, art
Language " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.To those skilled in the art, can understand as the case may be above-mentioned
The concrete meaning of term in the present invention.
One side according to the present utility model provides a kind of micro-channel heat exchanger, including heat exchanger tube 1；The heat exchange
Diversion groove 2 is provided on the outer wall of pipe 1, the diversion groove 2 can collect and drain the liquid on 1 outer wall of the heat exchanger tube
Body, to reduce burden of the liquid on 1 outer wall of the heat exchanger tube.Heat exchanger tube 1 is used as evaporator in heat pump system to be made
Used time, since tube wall temperature is relatively low, the vapor in external environment, which can usually condense in, forms condensation on the outer wall of heat exchanger tube 1
Water, or solidification are frosted and are coated on 1 outer wall of heat exchanger tube, and the heat exchange efficiency of heat exchanger tube 1 is caused to reduce.Reduction is coated on pipe outer wall
Frost thickness or water burden are beneficial to improve the overall heat exchange efficiency of micro-channel heat exchanger.The utility model is in heat exchanger tube 1
Diversion groove 2 is set on outer wall, and diversion groove 2 can play the role of converging liquid and guide liquid flowing, therefore, heat exchange
The defrosting water formed during the condensed water accumulated at 1 pipe outer wall of pipe or defrost can be collected to diversion groove 2 at least partly
It is interior, and be discharged via diversion groove 2, the outer wall of heat exchanger tube 1 is left, water burden on 1 outer wall of heat exchanger tube is reduced to reach
Effect can reduce pipe outer wall water layer thickness, and make in the heat pump system of worst cold case using micro-channel heat exchanger as steaming
Send out device in use, heat exchanger tube 1 upper institute's frosting layer thickness reduce, be conducive to improve micro-channel heat exchanger heat exchange efficiency.
As a kind of preferable embodiment, the heat exchanger tube 1 is horizontally disposed flat tube, including upper wall surface 11, described
Diversion groove 2 is set at the upper wall surface 11.Specifically, the micro-channel heat exchanger be preferably lightweight, heat exchange efficiency compared with
High micro-channel heat exchanger, including multiple heat exchanger tubes 1.Its heat exchanger tube 1 is flat tube, is provided in flat tube multiple logical for heat exchanging fluid
The borelike passageways crossed, be arranged along flat tube length direction, to increase refrigerant side heat convection area.What the upper wall surface 11 referred to
It is, when the flat tube is horizontally disposed, the part at vertical top to be located in 1 outer wall of heat exchanger tube, which is usually in strip, due to
Upper wall surface 11 is directed away from the direction of gravity, therefore is to be easiest to accumulate liquid (mainly condensed water and defrost on heat exchanger tube 1
Water) position.The diversion groove 2 is set at the upper wall surface 11, is conducive to guide the water at upper wall surface 11 along diversion groove 2
Flowing and smooth discharge achieve the purpose that reduce 11 water burden of upper wall surface.
As a kind of preferable embodiment, the upper wall surface 11 is inclined relative to horizontal, the shape preferably between horizontal plane
At no more than 30 ° of default angle (as shown in fig. 6, default angle equal with the angles γ in Fig. 5), to promote on the upper wall surface 11
The discharge of liquid.More specifically, the central axis of heat exchanger tube 1 is horizontally disposed, heat exchanger tube 1 is made to turn around the central axis of its own
It is dynamic, 11 relative level of upper wall surface can be made to tilt, default angle is formed with horizontal plane, be conducive to further speed up diversion groove
2 drainage procedure promotes the accumulation water on upper wall surface 11 to be discharged by diversion groove 2 or directly by inclined upper wall surface 11,
And can be when heat exchange fin 3 is arranged between heat exchanger tube 1, that accumulates water on promotion heat exchange fin 3 flow to 1 upper wall surface 11 of heat exchanger tube
Above or it is expelled directly out.With the increase for presetting angle between upper wall surface 11 and horizontal plane, drainage speed increases, but adjacent heat exchange tubes
It will reduce for the space of heat exchange fin 3 is arranged between 1, therefore default angle preferably made to be less than 30 °, it is above-mentioned to reach in guarantee
While advantageous effect, do not reduce the effective heat exchange area of micro-channel heat exchanger excessively.
As a kind of preferable embodiment, at the upper wall surface 11, the diversion groove 2 is along perpendicular to the heat exchange
The direction of the central axis of pipe 1 is arranged so that diversion groove 2 can be with shortest groove length along the width direction of heat exchanger tube 1
Cross heat exchanger tube 1, it is preferable that as shown in figure 3, the left end of diversion groove 2 is located at the top of the left side side wall of heat exchanger tube 1, formed
One of diversion groove 2 is open-ended, and the right end of diversion groove 2 is located at the roof of the right sidewall in heat exchanger tube 1, forms water conservancy diversion
Another of groove 2 is open-ended, at this point, the length of diversion groove 2 and upper wall surface 11 are along perpendicular to 1 central axis side of heat exchanger tube
To width it is equal.The water flowed into diversion groove 2 can be open-ended by this two, diversion groove 2 is flowed out, to leave
Heat exchanger tube 1.The diversion groove 2 extended perpendicular to 1 central axis of heat exchanger tube is conducive to reduce the overall processing length of diversion groove 2
Degree reduces processing cost, improves processing efficiency.The diversion groove 2 can also only include one open-ended, for example, making to lead
The length for flowing groove 2 is less than upper wall surface 11 along the width perpendicular to 1 central axial direction of heat exchanger tube, only one end of diversion groove 2
It is set to the edge of 1 side wall of heat exchanger tube, forms the open-ended of outflow of supplying water.
Since the confluence of diversion groove 2 and drainage have certain effective active area, accumulation water at upper wall surface 11 with
The distance between diversion groove 2 farther out when, diversion groove 2 to its drainage will reduce.Therefore, as a kind of preferable reality
Mode is applied, the quantity that the diversion groove 2 is arranged is multiple, and multiple 2 parallelly distribute ons of the diversion groove are in the upper wall surface 11
Place, so that the accumulation water on upper wall surface 11 everywhere effectively can be collected and be drained by neighbouring diversion groove 2, has
Conducive to the drainability on equalization upper wall surface 11 everywhere.
As a kind of preferable embodiment, multiple heat exchanger tubes 1 are vertically alternatively arranged setting, two neighboring described
Waveform heat exchange fin 3 is provided between heat exchanger tube 1, which is preferably louvered fin, so that Thermal Performance of Micro Channels utensil
There are higher exchange capability of heat and heat exchange efficiency；The heat exchange fin 3 includes multiple troughs 31, for example, as shown in Figure 1 and Figure 7, institute
It can also includes vertically arranged and spaced apart the first header 5 and the second header 6 to state micro-channel heat exchanger, changed
Heat pipe 1 is flat tube.Offered on first header 5 and the second header 6 with the wide contour flat tube slot 51 in flat tube cross section,
For the both ends assembly connection with flat tube, flat tube is enable to be connected to the first header 5 and the second header 6.Adjacent two change
The heat exchange fin 3 being arranged between heat pipe 1 can be formed by aluminium foil Multi-step forming, and waviness, heat exchange fin 3 is in the longitudinal direction
Span and flat tube equal length, the width and flat tube of heat exchange fin 3 are of same size, set up separately in the middle part of heat exchange fin 3
Fenestration 33 is set, for carrying out flow-disturbing to air flow field, strengthens the heat exchange of wind side.Heat exchange fin 3 includes superposed multiple
Wave crest 32 and multiple troughs 31 positioned at lower part, bottom surface phase of the multiple wave crests 32 with the heat exchanger tube 1 above heat exchange fin 3
Connection, multiple troughs 31 are connected with the top surface (namely upper wall surface 11) of the heat exchanger tube 1 positioned at 3 lower section of heat exchange fin.Assembly
When, heat exchange fin 3 is put between two neighbouring flat tubes, crossing stove welding can fix.The two neighboring water conservancy diversion is recessed
Distance between slot 2 be the heat exchange fin 3 two neighboring trough 31 between 1-5 times of distance.It is highly preferred that two neighboring institute
State distance between the two neighboring trough 31 that distance between diversion groove 2 is the heat exchange fin 3 2-3 times, as shown in Figure 1,
Distance between two neighboring diversion groove 2 is 2 times of distance between two neighboring trough 31.The above optional distance range, can
While ensureing 2 drainage effect of diversion groove, to be reduced as far as the fluting quantity on heat exchanger tube 1, processing work is reduced
The complexity of skill improves processing efficiency, reduces processing cost.Preferably, as shown in Figure 1, the diversion groove 2 be set to it is described
At position on upper wall surface 11, opposite with the wave crest 32.Being preferably provided on the heat exchange fin 3 can be to flowing through described change
The fluid of hot fin 3 carries out the fenestration 33 of flow-disturbing, for example, shutter as shown in Figure 3, when air-flow flows through heat exchange wing
When piece 3, fenestration 33 can increase the flow-disturbing effect to air-flow, reduce boundary layer, to improve the heat-energy transducer of heat exchange fin 3
Power.
As a kind of preferable embodiment, as depicted in figs. 1 and 2, the diversion groove 2 is wedge groove, including is connected
The first slope surface and the second slope surface connect, the wedge-like opening angle [alpha] of angle namely wedge groove between the first slope surface and the second slope surface
It is 60 ° -120 °, groove width d is 0.5-2mm, so that the accumulation water on 1 outer wall of heat exchanger tube can be merged into smoothly in wedge groove, and
It is smoothly discharged from slot, avoids generating and accumulate water since channel opening angle too small or groove width are narrow, generate surface tension, Wu Fashun
The problem of profit outflow groove, is conducive to improve the smoothness that diversion groove 2 drains.Further, it is also possible to which the groove depth h of wedge groove is set
It is set to the half no more than 1 pipe thickness of the heat exchanger tube, to ensure that the part for offering diversion groove 2 on 1 wall of heat exchanger tube has
There are enough mechanical strengths, ensures use reliability and the safety of heat exchanger tube 1.
As a kind of preferable embodiment, the micro-channel heat exchanger further includes distributing fin 4；The distributing fin 4
It is fixed on the side wall of 1 windward side of the heat exchanger tube, to guide the liquid on 1 outer wall of the heat exchanger tube to flow to the distributing fin
On 4.Distributing fin 4 is connected with heat exchanger tube 1, can play cooling effect, is conducive to the wind side for increasing micro-channel heat exchanger
Heat exchange area improves heat exchange amount.Meanwhile distributing fin 4 contacts with the side wall of micro-channel heat exchanger windward side and is connected, and is located at heat exchange
Water on 1 windward side side wall of pipe can be flowed on distributing fin 4, and by the guiding function of distributing fin 4 along water conservancy diversion wing
Piece 4 flows downward, until being detached from distributing fin 4, is discharged from micro-channel heat exchanger.When the water of 1 windward side side-walls of heat exchanger tube
When layer thickness reduces, the water that other positions are accumulated on 1 outer wall of heat exchanger tube tends to flow to the windward side side-walls, and after afterflow
To distributing fin 4, it is discharged by distributing fin 4.Distributing fin 4 can play good draining guide functions, advantageously reduce
Accumulation water on heat exchanger tube 1 and heat exchange fin 3.The case where micro-channel heat exchanger is used as evaporator under worst cold case
Under, the main frosting position of micro-channel heat exchanger is transferred on distributing fin 4, it is demonstrated experimentally that the frosting degree on distributing fin 4 can
Reach 80% or more of the total frosting degree of micro-channel heat exchanger, makes the knot on the heat exchange fin 3 between heat exchanger tube 1 and heat exchanger tube 1
Frost amount greatly reduces, and is conducive to improve the exchange capability of heat of micro-channel heat exchanger in this case.When carrying out defrosting operation, due to
Distributing fin 4 is vertically arranged, melts the distributing fin 4 that the defrosting water of formation can be vertically arranged and quickly flows down, does not melt completely
The frost layer of water is turned to due to gravity, can also be rapidly separated distributing fin 4, is conducive to quickly reduce the product on distributing fin 4
Water-holding quantity improves defrosting efficiency, reduces defrosting number, and a small amount of frost amount on 1 outer wall of heat exchanger tube and heat exchange fin 3 is being melted
It can be discharged quickly through the guide functions of diversion groove 2 and distributing fin 4 after change, make micro-channel heat exchanger integrally with higher
Defrost drainage efficiency.
As a kind of preferable embodiment, on a heat exchanger tube 1, the quantity of the distributing fin 4 with it is described
The quantity of diversion groove 2 is identical, and the distributing fin 4 is arranged in a one-to-one correspondence with the diversion groove 2.Preferably, such as Fig. 3 institutes
Show, when one end of the diversion groove 2 is located at the side-walls of 1 windward side of the heat exchanger tube, the distributing fin 4 is set to institute
At one end is stated, guide passage is cooperatively formed with the diversion groove 2.The guide passage can be prolonged by the leeward side of diversion groove 2
It extends on distributing fin 4, promotes the condensed water accumulated on 1 outer wall of heat exchanger tube or defrosting water to be quickly discharged, be conducive to further subtract
Few frosting degree of 1 outer wall of heat exchanger tube under worst cold case, improves micro-channel heat exchanger efficiency.
As a kind of preferable embodiment, the distributing fin 4 is provided with 1 matched edge of the heat exchanger tube
Notch 44, the shape of the notch 44 are adapted with the sidewall shape of 1 windward side of the heat exchanger tube.It, will when distributing fin 4 is installed
The side wall cooperation of the notch 44 and 1 windward side of heat exchanger tube is spliced, and preferably using be fixed by the way of stove welding, you can
Realize that distributing fin 4 stablizes installation on 1 outer wall of heat exchanger tube.As shown in figure 3, the side wall of 1 windward side of heat exchanger tube is arc-shaped,
Notch 44 on distributing fin 4 is also configured as being adapted to therewith arc-shaped.The setting of the notch 44 can increase distributing fin 4
With the contact area between 1 outer wall of heat exchanger tube, to improve the stability of fixed structure between distributing fin 4 and heat exchanger tube 1 and can
By property.
It is described to lead when the micro-channel heat exchanger includes multiple heat exchanger tubes 1 as a kind of preferable embodiment
It includes multiple notches 44 to flow fin 4；Multiple notches 44 are corresponded and are equipped with multiple heat exchanger tubes 1,
The distributing fin 4 is set to be adapted to connection with all heat exchanger tubes 1.For example, as shown in figure 3, multiple heat exchanger tubes 1 are parallel etc.
Vertically it is arranged to spacing, multiple notches 44 on distributing fin 4 are also vertically equally spacedly arranged successively, so that
Each notch 44 can be correspondingly connected with a heat exchanger tube 1, to make equal shape between a distributing fin 4 and each heat exchanger tube 1
At relatively stable fixed structure, be conducive to the mounting stability and reliability that further increase distributing fin 4.Be conducive to simultaneously
Reduce micro-channel heat exchanger amount of parts, enable a distributing fin 4 simultaneously to the accumulation water on multiple heat exchanger tubes 1 into
Row water conservancy diversion improves drainage efficiency, and simplifies the installation step of distributing fin 4 and heat exchanger tube 1.
As a kind of preferable embodiment, the distributing fin 4 further includes：Be set to the distributing fin 4 it is vertical on
First flange 41 at end, first flange 41, which can be used, adds the mode that the upper end of distributing fin 4 is bent to fin side
Work is formed, easy to operate, and the first flange 41 of formation is horizontally disposed；And/or it is set to 4 vertically lower end of the distributing fin
Second flange 42, similar with the first flange 41, second flange 42 can be also bent to form by the lower end of distributing fin 4, water
Flat setting；And/or it is set to the third flange 43 at 4 middle part of the distributing fin, the third flange 43 is vertically arranged and hangs down
Directly in the distributing fin 4；First flange 41, second flange 42 and the third flange 43 are towards the water conservancy diversion
The homonymy of fin 4 protrudes, and prominent length is identical, for determining the pitch of fins between the adjacent distributing fin 4 in assembly.Such as Fig. 4
It is easy to assembly shown in Fig. 5, the first flange 41, the second flange 42 and third flange 43 is set simultaneously on distributing fin 4,
So that two neighboring distributing fin 4 from top to bottom everywhere between a pitch of fins keep equal.
As a kind of preferable embodiment, it is provided on the distributing fin 4 and prolongs along 4 thickness direction of the distributing fin
The assembly through-hole 45 stretched, as shown in Figure 4 and Figure 5, the quantity of the assembly through-hole 45 can be two, one of them, which is set to, leads
The vertical top of fin 4 is flowed, another is set to the vertical lower part of distributing fin 4.Distributing fin 4 is being assembled to heat exchanger tube 1
When upper, multiple distributing fins 4 were taken, using graphite rod (or other high temperature resistants and the stick that is not welded and fixed with distributing fin 4
Material), the superposed assembly through-hole 45 of multiple distributing fins 4 is sequentially passed through, a graphite rod is separately taken, sequentially passes through multiple water conservancy diversion
The assembly through-hole 45 positioned at lower part of fin 4 embarks on journey to be arranged in order multiple distributing fins 4, forms pre- assembling structure.Its
In, the end abutment of at least one flange on a distributing fin 4 in the side that flange is not arranged on adjacent guide fin 4,
A pitch of fins is determined by the first flange 41, and/or the second flange 42, and/or third flange 43 to fin side length outstanding, excellent
Choosing is equal with the spacing between two neighboring diversion groove 2, so that each distributing fin 4, which can coordinate, is installed on diversion groove 2
Place.Again by the notch 44 on distributing fin 4, the distributing fin 4 of embarking on journey being pre-installed is combined together with heat exchanger tube 1, crosses stove
Welding is fixed, you can completes the installation of distributing fin 4.
As a kind of preferable embodiment, the distributing fin 4 is arranged at straight panel bar shaped or wavy strip structure, should
The length sides of wavy strip structure are waveform；Being set as corrugated distributing fin 4 has better mechanical strength, to prevent
Only distributing fin 4 lose, reviewing problem；One length edge of the distributing fin 4 and 1 company of matching of the heat exchanger tube
It connects, notch 44 above-mentioned is opened in the length edge.Preferably, the distributing fin 4 by heat conductivility good, density compared with
Small, processing performance aluminium foil is made, width 5-30mm, and the width for suitably increasing distributing fin 4 in the width range is advantageous
In increasing wind side heat exchange area, the exchange capability of heat of micro-channel heat exchanger is improved, but fin width should not be too large, to avoid falling
Piece problem.4 thickness of distributing fin is 0.08-0.15mm.
As a kind of preferable embodiment, the distributing fin 4 is vertically arranged or inclines relative to vertical direction
Tiltedly setting, angle of inclination is acute angle.Whether it is vertically arranged or is obliquely installed relative to vertical direction, the distributing fin 4
Water thereon can be guided to be left along gravity direction.The setting direction of the distributing fin 4 is for flowing into micro-channel heat exchanger
Airflow pattern tool have a certain impact, for instance, it is preferred that as shown in fig. 7, when the micro-channel heat exchanger includes the heat exchange
When fin 3, the heat exchange fin 3 is wedge angle waveform, including connects the first unit plate 34 and second unit plate for forming wedge angle
35；The distributing fin 4 is parallel to the first unit plate 34 or the second unit plate 35 setting, is conducive to optimize air stream
Type.Specifically, the case where being placed vertically compared to distributing fin 4, windage is more caused by air for the distributing fin 4 that is obliquely installed
It is small so that micro-channel heat exchanger is concentrated mainly on adjacent heat exchange to the process of air progress flow-disturbing, reduction boundary layer, enhanced heat exchange
On heat exchange fin 3 between pipe 1, especially at the fenestration 33 of heat exchange fin 3, avoiding distributing fin 4, excessively blocking is changed
The flowing of thermal current.
Another aspect according to the present utility model provides a kind of air-conditioning, including the micro-channel heat exchanger, the air-conditioning
Can be air conditioning for automobiles or other application in the air-conditioning system of special operation condition.
To sum up, it will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be certainly
By combining, being superimposed.
The above, the only better embodiment of the utility model, not do in any form the utility model
Limitation.Anyone can obtain other various forms of products under the enlightenment of the utility model, however, in its shape or knot
Make any variation on structure, it is every that there is technical solution identical or similar to the present application, all fall within the protection of the utility model
Within the scope of.
Claims (22)
1. a kind of micro-channel heat exchanger, which is characterized in that including heat exchanger tube (1)；
Diversion groove (2) is provided on the outer wall of the heat exchanger tube (1), the diversion groove (2) can be collected and drain described
Liquid on heat exchanger tube (1) outer wall, to reduce burden of the liquid on the heat exchanger tube (1) outer wall；
The micro-channel heat exchanger further includes distributing fin (4), and the distributing fin (4) is fixed on the heat exchanger tube (1) windward
On the side wall of side, to guide the liquid on the heat exchanger tube (1) outer wall to flow on the distributing fin (4).
2. micro-channel heat exchanger according to claim 1, which is characterized in that the heat exchanger tube (1) is horizontally disposed flat
Pipe, including upper wall surface (11), the diversion groove (2) are set at the upper wall surface (11).
3. micro-channel heat exchanger according to claim 2, which is characterized in that the upper wall surface (11) is with respect to the horizontal plane inclined
Tiltedly, to promote the discharge of liquid on the upper wall surface (11).
4. micro-channel heat exchanger according to claim 2 or 3, which is characterized in that
At the upper wall surface (11), the diversion groove (2) is prolonged along the direction of the central axis perpendicular to the heat exchanger tube (1)
Stretch setting.
5. micro-channel heat exchanger according to claim 2 or 3, which is characterized in that
The quantity of the diversion groove (2) is multiple, and multiple diversion grooves (2) are arranged in parallel in the upper wall surface (11)
Place.
6. micro-channel heat exchanger according to claim 5, which is characterized in that multiple heat exchanger tubes (1) are vertically spaced
It is arranged, waveform heat exchange fin (3) is provided between the two neighboring heat exchanger tube (1)；
The heat exchange fin (3) includes multiple troughs (31), and the distance between the two neighboring diversion groove (2) is the heat exchange
1-5 times of distance between the two neighboring trough (31) of fin (3).
7. micro-channel heat exchanger according to claim 6, which is characterized in that between the two neighboring diversion groove (2)
Apart from 2-3 times of the distance between the two neighboring trough (31) of the heat exchange fin (3).
8. the micro-channel heat exchanger described according to claim 6 or 7, which is characterized in that
The heat exchange fin (3) includes multiple wave crests (32), the diversion groove (2) is set on the upper wall surface (11), with
At the opposite position of the wave crest (32).
9. the micro-channel heat exchanger described according to claim 6 or 7, which is characterized in that be provided with energy on the heat exchange fin (3)
Enough fluids to flowing through the heat exchange fin (3) carry out the fenestration (33) of flow-disturbing.
10. according to claim 1-3,6-7 any one of them micro-channel heat exchangers, which is characterized in that
The diversion groove (2) is wedge groove, and wedge-like opening angle is 60 ° -120 °, groove width 0.5-2mm；And/or it described leads
The groove depth for flowing groove (2) is not more than the half of the heat exchanger tube (1) pipe thickness.
11. micro-channel heat exchanger according to claim 1, which is characterized in that described on a heat exchanger tube (1)
The quantity of distributing fin (4) is identical as the quantity of the diversion groove (2), the distributing fin (4) and the diversion groove (2)
It corresponds.
12. micro-channel heat exchanger according to claim 1, which is characterized in that when one end of the diversion groove (2) is located at
When the side-walls of heat exchanger tube (1) windward side, the distributing fin (4) is set to the at one end, with the diversion groove
(2) guide passage is cooperatively formed.
13. micro-channel heat exchanger according to claim 1, which is characterized in that the distributing fin (4) and the heat exchanger tube
(1) jagged (44) are arranged in matched edge, the side wall of the shape and the heat exchanger tube (1) windward side of the notch (44)
Shape is adapted.
14. micro-channel heat exchanger according to claim 13, which is characterized in that when the micro-channel heat exchanger includes multiple
When heat exchanger tube (1), the distributing fin (4) includes multiple notches (44)；
Multiple notches (44) correspond and are equipped with multiple heat exchanger tubes (1), make the distributing fin (4) energy
It is enough to be adapted to connection with all heat exchanger tubes (1).
15. the micro-channel heat exchanger according to claim 13 or 14, which is characterized in that the distributing fin (4) it is described
It is fixedly connected by welding manner between notch (44) and the side wall of the heat exchanger tube (1) windward side.
16. micro-channel heat exchanger according to claim 1, which is characterized in that the distributing fin (4) further includes：
It is set to the first flange (41) of the vertical upper end of the distributing fin (4), first flange (41) is horizontally disposed；With/
Or,
It is set to second flange (42) of the distributing fin (4) vertically lower end, second flange (42) is horizontally disposed；With/
Or,
The third flange (43) being set in the middle part of the distributing fin (4), the third flange (43) it is vertically arranged and perpendicular to
The distributing fin (4)；
First flange (41), second flange (42) and the third flange (43) are towards the distributing fin (4)
Homonymy protrude, prominent length is identical, for determining the pitch of fins between the adjacent distributing fin (4) in assembly.
17. micro-channel heat exchanger according to claim 1, which is characterized in that be provided with along institute on the distributing fin (4)
State the assembly through-hole (45) of distributing fin (4) thickness direction extension.
18. micro-channel heat exchanger according to claim 1, which is characterized in that
The distributing fin (4) is arranged at straight panel bar shaped or wavy strip structure, a length sides of the distributing fin (4)
Edge and the heat exchanger tube (1) are in mating connection.
19. micro-channel heat exchanger according to claim 18, which is characterized in that distributing fin (4) width is 5-
30mm, thickness 0.08-0.15mm.
20. micro-channel heat exchanger according to claim 1, which is characterized in that the distributing fin (4) vertically sets
It sets or is obliquely installed relative to vertical direction, angle of inclination is acute angle.
21. micro-channel heat exchanger according to claim 20, which is characterized in that when the micro-channel heat exchanger includes described
When heat exchange fin (3), the heat exchange fin (3) be wedge angle waveform, including connection formed wedge angle first unit plate (34) and
Second unit plate (35), the distributing fin (4) is parallel to the first unit plate (34) or the second unit plate (35) is set
It sets.
22. a kind of air-conditioning, which is characterized in that including claim 1-21 any one of them micro-channel heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402947.0U CN207816049U (en) | 2017-10-27 | 2017-10-27 | Micro-channel heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402947.0U CN207816049U (en) | 2017-10-27 | 2017-10-27 | Micro-channel heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816049U true CN207816049U (en) | 2018-09-04 |
Family
ID=63337344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721402947.0U Active CN207816049U (en) | 2017-10-27 | 2017-10-27 | Micro-channel heat exchanger and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816049U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110470164A (en) * | 2019-08-21 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of fin and heat exchanger and air-conditioning with it |
| CN110513858A (en) * | 2019-08-14 | 2019-11-29 | 青岛海信日立空调系统有限公司 | A kind of heat-exchanger rig and its control method, control device |
| CN111765570A (en) * | 2020-07-10 | 2020-10-13 | 金华市小狸新材料科技有限责任公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
-
2017
- 2017-10-27 CN CN201721402947.0U patent/CN207816049U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110513858A (en) * | 2019-08-14 | 2019-11-29 | 青岛海信日立空调系统有限公司 | A kind of heat-exchanger rig and its control method, control device |
| CN110470164A (en) * | 2019-08-21 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of fin and heat exchanger and air-conditioning with it |
| CN111765570A (en) * | 2020-07-10 | 2020-10-13 | 金华市小狸新材料科技有限责任公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
| CN111765570B (en) * | 2020-07-10 | 2021-09-14 | 沧州双印空调安装工程有限公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
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