CN101619950A - Fin and heat exchanger with same - Google Patents
Fin and heat exchanger with same Download PDFInfo
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- CN101619950A CN101619950A CN200910162388A CN200910162388A CN101619950A CN 101619950 A CN101619950 A CN 101619950A CN 200910162388 A CN200910162388 A CN 200910162388A CN 200910162388 A CN200910162388 A CN 200910162388A CN 101619950 A CN101619950 A CN 101619950A
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- fin
- arc section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
- F28F1/128—Fins with openings, e.g. louvered fins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a fin which is generally of a wave shape and comprises straight sections and arc sections, wherein the straight sections and the arc sections are sequentially connected so as to ensure that the arc sections form wave crests and wave troughs. The fin is divided into a first end part, a second end part and a middle part which is positioned between the first end part and the second end part along the transverse direction, wherein each arc section for at least forming the wave troughs in the first end part is separated from corresponding the arc section in the middle part through longitudinal cutting seams, and the arc top of each arc section for at least forming the wave troughs in the first end part is provided with transverse cutting seams along the transverse direction so as to ensure that each section for at least forming the wave troughs in the first end part is divided into a straight first part and a straight second part. The fin has good draining performance and reduces the gathering of condensed water. The invention also provides a heat exchanger with the fin.
Description
Technical field
The present invention relates to a kind of fin and heat exchanger, especially relate to a kind of micro-channel heat exchanger that can improve the fin of eliminating condensed water performance and have this fin with this fin.
Background technology
Parallel-flow heat exchanger can produce condensed water in the surface for example as evaporimeter or heat pump heat exchanger the time, get rid of the performance of condensed water in order to improve heat exchanger, and parallel-flow heat exchanger takes header to be horizontally disposed with usually and flat tube vertically is installed between the header.
For example, traditional parallel-flow heat exchanger shown in Figure 10 and 11, Figure 10 is the structural representation of traditional heat exchangers, Figure 11 is the zoomed-in view of the G ' part among Figure 10, in order to improve the performance of getting rid of condensed water, header 3a ' and 3b ' level and the setting of turning up the soil spaced in parallel to each other, flat tube 1 ' vertically and in parallel with each other is arranged between header 3a ' and the 3b '.
But above-mentioned traditional set-up mode of header and flat tube is not suitable for the heat exchanger of some type, for example prolate type heat exchanger (being the heat exchanger that length is far longer than its height).
For the heat exchanger of prolate type,, can bring following problem if adopt above-mentioned traditional set-up mode:
Header is longer, and cost is higher, realizes that cold-producing medium uniform distribution difficulty is big; Because the header place is stuffy heat exchange, so header is long more, it is big more to hinder the mobile area of air, thereby effective heat exchange area is reduced; Flat tube length is short and quantity is many, and promptly refrigerant passage is many, and flat tube inner refrigerant flow velocity is low, and heat exchange property is poor.
For this reason, for the prolate type heat exchanger, adopt header vertically to be provided with traditionally usually and flat tube flatly is arranged between the header, thereby the length of header reduces, the length of flat tube increases and quantity reduces.
But header vertically is provided with and flat tube flatly is arranged on prolate type heat exchanger between the header owing to using traditional fin to have the queueing problem of condensed water.For example, as shown in figure 12, if wind blows along direction D ', because the water surface tension effect, most of condensed water all can accumulate in the leeward side (zone shown in the F ' among Figure 12) of fin and can't get rid of happyly.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, first aspect present invention proposes a kind of fin that can improve drainage performance.
Be the cardinal principle corrugated and comprise flat segments and arc section according to fin of the present invention, described flat segments links to each other successively with arc section so that described arc section constitutes crest and trough, described fin is along laterally being divided into first end, the second end, and the pars intermedia between first end and the second end, wherein each arc section that constitutes trough at least in the first end by vertically cut meet with corresponding pars intermedia in arc section separate and first end in the arc top of each arc section that constitutes trough at least along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes trough at least in the first end be divided into straight first and second portion.
By making each arc section that constitutes trough at least in the first end be divided into straight first and second portion, straight thus first and second portion are in the same plane with two flat end that are connected these arc section two ends respectively, when between the flat tube that fin is installed to heat exchanger, can be so that first end be along laterally stretching out from a side of flat tube, thereby condensed water can flow downward along flat segments and the first and second straight parts and leave fin, condensed water is difficult for accumulating on the fin, has improved the drainage performance of fin.
And then, also have following additional technical feature according to fin of the present invention:
Each arc section that constitutes trough at least in the second end by vertically cut meet with corresponding pars intermedia in arc section separate and the second end in the arc top of each arc section that constitutes trough at least along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes trough at least in the second end be divided into straight first and second portion.
Because each arc section that constitutes trough at least in the second end is divided into straight first and second portion, and first and second parts respectively with two flat segments that are connected the arc section two ends in same plane.When between the flat tube that fin is installed to heat exchanger, the second end of fin can stretch out along horizontal opposite side from flat tube, condensed water can flow downward along flat segments and straight first and second portion and leave fin thus, can not accumulate on the fin, further improve the drainage performance of fin.
Formation crest in first end and the second end and each arc section of trough by vertically cut meet separate with arc section in the corresponding pars intermedia and the arc top of each arc section of described formation crest and trough along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes crest and trough in first and second ends be divided into straight first and second portion.
Be divided into straight first and second portion by each arc section with formation crest in first and second ends and trough, when between the flat tube that fin is installed to heat exchanger, make first and second ends respectively along laterally stretching out from the both sides of flat tube, thereby condensed water can be at the two ends of fin flows downward along flat segments and the first and second straight parts and leaves fin, condensed water can not accumulate on the fin, has further improved the drainage performance of fin.
Link to each other by the arc transition section between described flat segments and the arc section, and R is greater than r, wherein R is the radius of arc section, and r is the radius of arc transition section.
Because the radius R of arc section is greater than the radius r of arc transition section, therefore in the fin assembling with when being welded on the flat tube of heat exchanger, the arc section easy deformation, and flat segments and arc transition section keep shape invariance substantially, thereby the transformation rule of fin and control easily, arranging density in heat exchanger is even, and shape can meet design requirement, and the shape of fin is stable more, heat transfer coefficient is big.
In one embodiment of the invention, the radius ratio R/r of the radius of arc section and arc transition section is greater than 2.Thus, arc section is easy deformation more, thereby makes the more regular and easy control of distortion of fin.
In one embodiment of the invention, 0.01mm≤R (1-cos (α/2))≤0.1mm, α is the central angle of described arc section.Thus, make the manufacturability of fin to improve.
In one embodiment of the invention, (2 * R * α * π/180)/P 〉=0.85, P is the Cycle Length of described fin, α is the central angle of described arc section, and π is a pi.Thus, after fin assembling and being welded on the flat tube of heat exchanger, the zone that surrounds between two adjacent flat segments, the arc section that becomes straightway and the flat tube can be called general rectangular, trapezoidal or analogous shape.
In one embodiment of the invention, the central angle alpha of described arc section is in the scope of 30 °≤α≤160 °.Make the manufacturing of fin convenient thus.
In one embodiment of the invention, on described flat segments, offer window.Can further improve heat transfer system thus.
The plane that described window leaves the flat segments place by a part that makes flat segments forms.
In one embodiment of the invention, 0.75≤L/H≤1.05, L is the length of window, H is the height of flat segments.Thus, can further improve the manufacturing property of fin and considered the air side resistance.
Propose a kind of heat exchanger that has according to the fin of first aspect present invention according to a further aspect in the invention, this heat exchanger drainage performance is good, and header length is short, flat tube length is big and quantity is few, the heat exchange efficiency height.
Heat exchanger according to the present invention comprises: first header, and described first header vertically is provided with; Second header, described second header is provided with vertically and with first header abreast; Flat tube, described flat tube flatly are arranged between first and second headers and two ends are communicated with first and second headers respectively; And fin, described fin is according to the fin of first aspect present invention and is arranged between the adjacent flat tube that the first end of wherein said fin is along laterally stretching out from a side of flat tube.
As mentioned above, since first end of fin from a side of flat tube stretch out and first end each arc section that constitutes trough at least be divided into straight first and second portion, therefore condensed water can flow downward along flat segments and the first and second straight parts, can not accumulate on the fin, improve the drainage performance of heat exchanger.
In addition, in one embodiment of the invention, the second end of described fin stretches out along horizontal opposite side from flat tube.Thus, can further improve the drainage performance of heat exchanger, and fin need not to consider blowing direction when installing.
Certainly, above-mentioned beneficial effect and the advantage that also has fin and had according to the heat exchanger of the embodiment of the invention.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is a part of schematic perspective view according to the fin of the embodiment of the invention, wherein shows an arc section and two flat segments;
Fig. 2 is the flattening schematic diagram of a part of fin shown in Figure 1;
Fig. 3 is the transverse side view according to the part of the fin of the embodiment of the invention;
Fig. 4 is the local enlarged diagram of fin shown in Figure 3;
Fig. 5 is in assembling with the schematic diagram after being welded on the flat tube of heat exchanger according to the fin of the embodiment of the invention;
Fig. 6 is the structural representation according to the heat exchanger of the embodiment of the invention;
Fig. 7 is the enlarged diagram of the E part among Fig. 6;
Fig. 8 is mounted in the transverse side view of a fin between two flat tubes;
Fig. 9 is the schematic perspective view of the part of fin shown in Fig. 8;
Figure 10 is the structural representation of traditional heat exchangers;
Figure 11 is the zoomed-in view of the G ' part among Figure 10; With
Figure 12 is that traditional fin is installed in two transverse side view between the flat tube.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to the fin 1 of accompanying drawing 1-5 description according to the embodiment of the invention.
As shown in Figure 3, fin 1 according to the embodiment of the invention is the cardinal principle corrugated, and comprise flat segments 11 and arc section 12, thereby flat segments 11 and arc section 12 link to each other successively and constitute the undulatory fin 1 of cardinal principle that B longitudinally extends, wherein arc section 12 constitutes the crest and the trough of fins.
As illustrated in fig. 1 and 2, fin 1 along horizontal C be divided into first end 112, the second end 114 and be connected first end 112 and the second end 114 between pars intermedia 113.As shown in Figure 2, first end 112 is S1 along the width of horizontal C, and the second end 114 is S2 along the width of horizontal C, S1, and S2 and pars intermedia 113 are along laterally the width of C can be definite according to concrete application, and the present invention is restriction especially not.
Cut along the above-below direction among Fig. 1 between each arc section 12 of formation trough in the first end 111 and the arc section 12 of corresponding pars intermedia 113, in other words, each arc section 12 of formation trough in the first end 111 meets 111 to separate with the arc section 12 of corresponding pars intermedia 113 by vertically cutting, as shown in Figure 1, vertically cut and meet 111 to extend downwardly into flat segments 11.Simultaneously, the arc top of each arc section 12 of the formation trough in first end 111 is along laterally C incision, thereby form horizontal joint-cutting 110, laterally cut to meet and run through whole first end 111 along horizontal C, thereby each arc section 112 of the formation trough in the first end 111 is divided into 12a of first and second portion 12b, make 12a of first and second portion 12b become straight by upset and flattening, and two flat segments 11 with arc section 12 both sides are positioned at same plane respectively, as shown in Figure 1.At this moment, the arc section 12 of pars intermedia 113 remains circular arc.
When between the flat tube 2 (referring to Fig. 8) that fin 1 is installed to heat exchanger, the first end 111 of fin 1 stretches out from a side (right side Fig. 8) of flat tube 2 along horizontal C, because the arc section 12 of the formation trough in the first end 111 is divided into straight 12a of first and second portion 12b, destroyed the surface tension of condensed water, therefore when when direction D dries, condensed water can not accumulate in the regional F of fin 1, and condensed water flows downward along flat segments 11 and the straight 12a of first that is attached thereto and second portion 12b easily and leaves fin 1, has improved the drainage performance of fin.
In an example of the present invention, the arc section 12 of the formation crest in the first end 111 also meets 111 and laterally cut and meet 110 to be divided into straight 12a of first and second portion 12b by vertically cutting, thus when being installed to fin 1 between the flat tube 2, the arc section 12 that becomes straight 12a of first and second portion 12b has destroyed the surface tension of condensed water, and condensed water is easily along the straight 12a of first and the second portion 12b of the arc section 12 that constitutes crest, the straight 12a of first of the arc section 12 of flat segments 111 and formation trough and second portion 12b flow downward and leave fin 1, further reduce the possibility that condensed water accumulates in the regional F of fin 1, improved the drainage performance of fin 1.
In another example of the present invention, the arc section 12 of the formation trough in the second end 114 of fin 1 also meets 111 and laterally cut and meet 110 to be divided into straight 12a of first and second portion 12b by vertically cutting.Further, alternatively, the arc section 12 of the formation crest in the second end 114 also meets 111 and laterally cut and meet 110 to be divided into straight 12a of first and second portion 12b by vertically cutting.
Thus, when fin 1 is installed between the flat tube 2 of heat exchanger, the opposite side (left side Fig. 8) of the second end 114 along horizontal C from flat tube 2 stretches out, because the formation trough in the second end 114 or the arc section 12 of trough and crest become straight 12a of first and second portion 12b, therefore destroyed the surface tension of condensed water.For example, when wind along the direction opposite (among Fig. 8 left direction) when blowing with direction D, condensed water is not easy to accumulate in fin 1 and the zone regional F symmetry, and easily straight 12a of first in the second end 114 and second portion 12b and flat segments 11 flow downward and leave fin, have further improved drainage performance.
Because the first end 112 of fin 1 and the arc section 12 of the formation trough in the second end 114 or trough and crest all become straight 12a of first and second portion 12b, and horizontal C stretches out from the both sides of flat tube 2 from the edge respectively in the time of between the flat tube 2 that is installed to heat exchanger, need not to consider wind direction D when therefore installing, improve installation effectiveness, and improved the drainage performance of fin 1.
In one embodiment of the invention, shown in Fig. 3-5, link to each other by arc transition section 13 between flat segments 11 and the arc section 12, and R is greater than r, wherein R is the radius (center of circle is O1) of arc section, and r is the radius (center of circle is O2) of arc transition section.
As shown in Figure 3, each end of an arc section 12 connects an end of an arc transition section 13 respectively, and the other end of a described arc transition section 13 links to each other with an end of flat segments 11, then the other end of flat segments 11 links to each other with next arc transition section 13 again, thereby forms the undulatory fin 1 of cardinal principle of B extension longitudinally.In an embodiment of the present invention, the one-period of 11,2 arc sections 12 of 2 flat segments and 4 arc transition section 13 formation fins, wherein the Cycle Length of fin 1 is P.Fin 1 for example can be made by the rolled metal paper tinsel, can determine as required that for the periodicity that persons of ordinary skill in the art may appreciate that fin 1 the present invention has no particular limits.
In the process of making heat exchanger, when between the flat tube 2 that fin 1 is assembled into heat exchanger, being compressed by flat tube 2, because the radius R of arc section 12 is r greater than the radius of arc transition section 13, therefore arc section 12 easy deformation more, thereby become the straightway of being close to flat tube 2 surfaces, as Fig. 5 and shown in Figure 9, and the less arc transition section 13 of flat segments 11 and radius r keeps shape invariance.
And, the distortion unanimity of the transformation rule of arc section 12 and each arc section 12, thereby the transformation rule of fin 1 and control easily, the arrangement in heat exchanger is even, and shape can meet design requirement, and the shape of fin 1 is more stable.After welding, two adjacent flat straight sections 11 of fin 1 and the regional A that arc section 12 that becomes straightway and flat tube 2 surround become the cardinal principle trapezoidal shape and each regional A shape consistent, as shown in Figure 5.The heat transfer coefficient of the heat exchanger air side of making thus increases, and the heat exchange property of heat exchanger improves, and heat exchanger looks more neatly, appearance looks elegant.
In examples more of the present invention, by changing the size of arc section 12, after welding, regional A can be general rectangular shape or square configuration.
In examples more of the present invention, the radius ratio R/r of the radius of arc section 12 and arc transition section 13 is greater than 2, thus arc section 12 easy deformation more.Compare with r, R is big more, and arc section 12 is easy deformation more.For example, R can be 5 times of r, if R is 1mm, then r is 0.2mm.
As shown in Figure 4, when arc section 12 became straightway, arc section 12 compressed distances were N (being the action of arc section 12).In examples more of the present invention, for the manufacturing that makes fin 1 is more prone to feasible, compressedly be controlled within the 0.01-0.1mm, i.e. 0.01mm≤R (1-cos (α/2))≤0.1mm apart from N, wherein R is the radius of arc section 12, and α is the central angle of arc section 12.In addition, convenient in order to make equally, in an example of the present invention, the central angle alpha of arc section 12 is arranged in the scope of 30 °≤α≤160 °.
In other examples of the present invention, after making fin 1 assembling and being welded on the flat tube 2, the regular shape of zone A, for example be rectangle or trapezoidal or substantially similar shape, (2 * R * α * π/180)/P 〉=0.85, wherein R is the radius of arc section 12, α is the central angle of arc section 12, π is a pi, P is the one-period length of fin 1, the Cycle Length P of fin 1 is the length that has the straightway between 2 of same phase on the fin 1, and the distance between the lower end of two flat segments 11 that tilt to the upper right side among Fig. 3 for example perhaps constitutes the distance between the summit of two arc sections 12 of link to each other crest or trough.
As shown in Fig. 1-3 and Fig. 5, in examples more of the present invention, because the distortion of fin 1 mainly is the distortion (becoming straightway) of arc section 12, and flat segments 11 is indeformable basically, therefore can on flat segments 11, offer window 14, further improve the heat exchange property of heat transfer coefficient and heat exchanger thus.Window 14 can form by the plane that makes flat segments 11 middle parts 15 leave flat segments 11 places, for example can described a part of 15 planes of leaving flat segments 11 places be formed by punching press.Also can on flat segments 11, cut out a line of rabbet joint, punching press makes described a part of 15 to dig from the plane at flat segments 11 places and to form window 14 then, like this, described a part of 15 do not break away from flat segments 11, can further improve heat transfer coefficient and heat exchange property.
In an example of the present invention, as shown in Figure 3, take all factors into consideration manufacturing property and air side resistance, the height H of the length L of window 14 and fin 1 satisfies 0.75≤L/H≤1.05, can obtain more performance.Need to prove, length L is the length of window 14 on the longitudinal direction (direction shown in the arrow Q among Fig. 3) of flat segments 11, height H is meant the height on vertical direction (above-below direction among Fig. 5) behind the finned blade forming, promptly when arc section 12 becomes straightway, distance between two parallel arc sections 12 up and down, as shown in Figure 5.
Below with reference to the heat exchanger of Fig. 6-9 description according to the embodiment of the invention.
Shown in Fig. 6 and 7, comprise the first header 3a, the second header 3b, flat tube 2 and fin 1 according to the heat exchanger of the embodiment of the invention.In an example of the present invention, the first header 3a for example is the inlet collecting that is formed with inlet, and the second header 3b is as the outlet header.
The first header 3a and the second header 3b vertically are provided with substantially, promptly along the above-below direction setting among Fig. 6.The first header 3a and the second header 3b are parallel to each other and spaced apart preset distance substantially.
Need to prove term " level " and " vertically " be based on the orientation of accompanying drawing and position relation, be the relative position relation between flat tube 2 and the first header 3a and the second header 3b for convenience of description, and can not be interpreted as limitation of the present invention.
As shown in Figure 8, fin 1 is arranged between the adjacent flat tube 2, and wherein the first end 111 of fin 1 stretches out from a side (right side Fig. 8) of flat tube 2 along horizontal C.Flat tube 2 is pressed into the arc section 12 that constitutes crest and trough in the pars intermedia 113 of fin 1 flat, as shown in Figure 9.The formation trough in the first end 111 and the arc section 12 of crest meet 111 and laterally cut and meet 110 to be divided into straight 12a of first and second portion 12b by vertically cutting, destroyed the surface tension of condensed water, when wind when direction D blows, condensed water can not accumulate in the regional F, and flow downward easily and leave fin 1, improved the drainage performance of heat exchanger along the straight 12a of first and second portion 12b and flat segments 11.
In optional embodiment of the present invention, the formation trough in the second end 114 of fin 1 and the arc section 12 of crest also meet 111 and laterally cut and meet 110 to be called straight 12a of first and second portion 12b by vertically cutting, thus, when wind blows along the direction opposite with direction D, condensed water can not accumulate in the zone (left side among Fig. 8) with regional F symmetry yet, and the condensed water straight 12a of first in the second end 114 and second portion 12b and flat segments 11 easily flows downward and leaves fin 1, further increase the drainage performance of heat exchanger, and need not to consider wind direction D when installing.
As mentioned above, owing to link to each other by arc transition section 13 between the arc section 12 of fin 1 and the flat segments 11, wherein the radius R of arc section 12 is greater than the radius r of arc transition section 13, therefore when fin 1 is installed between the flat tube 2, flat tube 2 easier arc sections 12 with formation crest in the pars intermedia 113 of fin 1 and trough are pressed into flat, as Fig. 8-9 and shown in Figure 5, thereby the regular shape of regional A and each regional A shape unanimity, the heat transfer coefficient of heat exchanger air side increases thus, the heat exchange property of heat exchanger improves, and heat exchanger looks more neat, appearance looks elegant.
Certainly, the heat exchanger of further embodiment also has other advantage that corresponding fin 1 is had according to the present invention, is not described in detail here.
In sum, good according to the heat exchanger drainage performance of the embodiment of the invention, condensed water is not easy to accumulate on the fin 1, and fin 1 queueing discipline of making, and heat transfer coefficient increases, the heat exchange property height.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (13)
1, a kind of fin, it is characterized in that, described fin is for the cardinal principle corrugated and comprise flat segments and arc section, described flat segments links to each other successively with arc section so that described arc section constitutes crest and trough, described fin is along laterally being divided into first end, the second end, and the pars intermedia between first end and the second end, wherein each arc section that constitutes trough at least in the first end by vertically cut meet with corresponding pars intermedia in arc section separate and first end in the arc top of each arc section that constitutes trough at least along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes trough at least in the first end be divided into straight first and second portion.
2, fin according to claim 1, it is characterized in that, each arc section that constitutes trough at least in the second end by vertically cut meet with corresponding pars intermedia in arc section separate and the second end in the arc top of each arc section that constitutes trough at least along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes trough at least in the second end be divided into straight first and second portion.
3, fin according to claim 2, it is characterized in that, the formation crest in first end and the second end and each arc section of trough by vertically cut meet separate with arc section in the corresponding pars intermedia and the arc top of each arc section of described formation crest and trough along laterally being formed with horizontal joint-cutting so that make each arc section that constitutes crest and trough in first and second ends be divided into straight first and second portion.
4, according to each described fin among the claim 1-3, it is characterized in that, link to each other by the arc transition section between described flat segments and the arc section, and R is greater than r, wherein R is the radius of arc section, and r is the radius of arc transition section.
5, fin according to claim 4 is characterized in that, the radius ratio R/r of the radius of arc section and arc transition section is greater than 2.
6, fin according to claim 4 is characterized in that,
0.01mm≤R (1-cos (α/2))≤0.1mm, α is the central angle of described arc section.
7, fin according to claim 4 is characterized in that,
(2 * R * α * π/180)/P 〉=0.85, P is the Cycle Length of described fin, α is the central angle of described arc section, and π is a pi.
8, fin according to claim 4 is characterized in that, the central angle alpha of described arc section is in the scope of 30 °≤α≤160 °.
9, fin according to claim 4 is characterized in that, offers window on described flat segments.
10, fin according to claim 9 is characterized in that, the plane that described window leaves the flat segments place by a part that makes flat segments forms.
11, fin according to claim 9 is characterized in that,
0.75≤L/H≤1.05, L is the length of window, and H is the height of flat segments.
12, a kind of heat exchanger is characterized in that, comprising:
First header, described first header vertically is provided with;
Second header, described second header is provided with vertically and with first header abreast;
Flat tube, described flat tube flatly are arranged between first and second headers and two ends are communicated with first and second headers respectively; With
Fin, described fin are according to each described fin among the claim 1-11 and are arranged between the adjacent flat tube that the first end of wherein said fin is along laterally stretching out from a side of flat tube.
13, heat exchanger according to claim 12 is characterized in that, the second end of described fin stretches out along horizontal opposite side from flat tube.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101623884A CN101619950B (en) | 2009-08-13 | 2009-08-13 | Fin and heat exchanger with same |
| EP10007986.2A EP2295919B1 (en) | 2009-08-13 | 2010-07-30 | Fin and heat exchanger having the same |
| US12/806,323 US20110036550A1 (en) | 2009-08-13 | 2010-08-10 | Fin and heat exchanger having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101623884A CN101619950B (en) | 2009-08-13 | 2009-08-13 | Fin and heat exchanger with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619950A true CN101619950A (en) | 2010-01-06 |
| CN101619950B CN101619950B (en) | 2011-05-04 |
Family
ID=41513301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101623884A Active CN101619950B (en) | 2009-08-13 | 2009-08-13 | Fin and heat exchanger with same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20110036550A1 (en) |
| EP (1) | EP2295919B1 (en) |
| CN (1) | CN101619950B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012027098A3 (en) * | 2010-08-24 | 2013-01-24 | Carrier Corporation | A heatexchanger with a microchannel fin |
| US20130087315A1 (en) * | 2010-07-20 | 2013-04-11 | Sharp Kabushiki Kaisha | Heat exchanger and air conditioner equipped therewith |
| CN103913088A (en) * | 2014-04-16 | 2014-07-09 | 杭州三花微通道换热器有限公司 | Fins and bent heat exchanger with same |
| CN104011495A (en) * | 2011-12-14 | 2014-08-27 | 大金工业株式会社 | Heat exchanger |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101619950B (en) | 2011-05-04 |
| EP2295919A2 (en) | 2011-03-16 |
| EP2295919B1 (en) | 2015-06-17 |
| US20110036550A1 (en) | 2011-02-17 |
| EP2295919A3 (en) | 2014-03-26 |
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