CN208238613U

CN208238613U - Heat exchanger and heat exchange equipment

Info

Publication number: CN208238613U
Application number: CN201820753903.0U
Authority: CN
Inventors: 何哲旺; 北本学; 陈新厂
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2018-12-14
Anticipated expiration: 2028-05-18

Abstract

It includes: multiple fins that the utility model, which provides a kind of heat exchanger and heat exchange equipment, the heat exchanger, the multiple fin interval setting；Multiple heat exchanger tubes extend the fin surface or are formed in the fin to the refrigerant that circulates；Wherein, in the middle part of from the junction of the heat exchanger tube and fin to the fin, the thickness of corresponding finless parts is gradually thinned between the heat exchanger tube.The utility model has the advantages of reducing consumptive material, reducing windage, improve heat exchange amount and heat exchange efficiency.

Description

Heat exchanger and heat exchange equipment

Technical field

The utility model relates to technical field of heat exchangers, in particular to a kind of heat exchanger and heat exchange equipment.

Background technique

In the prior art, the heat exchanger tube of heat exchanger is generally vertically arranged in fin, heat exchanger tube by tube expansion technique with Fin is fixedly connected, be only capable of between heat exchanger tube and fin by the junction of heat exchanger tube and fin carry out heat exchange, heat exchanger tube and Thermal contact resistance between fin is larger, causes heat exchange amount and heat exchange efficiency between heat exchanger tube and fin lower.Meanwhile passing through tube expansion Between the heat exchanger tube and fin of technology connection or there can be gap, can also reduce the heat exchange efficiency between heat exchanger tube and fin.

Utility model content

The main purpose of the utility model is to provide a kind of heat exchanger, it is intended to solve in the prior art heat exchanger tube and fin it Between heat exchange amount and the lower problem of heat exchange efficiency.

To achieve the above object, the utility model proposes a kind of heat exchanger, the heat exchanger includes: multiple fins, institute State multiple fin interval settings；Heat exchanger tube extends the fin surface or is formed in the fin；Wherein, described in The junction of heat exchanger tube and fin is in the middle part of the fin, and the thickness of corresponding finless parts gradually subtracts between the heat exchanger tube It is thin.

Preferably, corresponding finless parts surface forms groove between the heat exchanger tube, and the groove is V-shaped groove.

Preferably, corresponding finless parts surface forms groove between the heat exchanger tube, and the groove is arc groove.

Preferably, the fin any surface forms the groove.

Preferably, two opposite surfaces of the fin are each formed with the groove.

Preferably, the multiple heat exchanger tube and the fin are integrally formed and are convexly equipped on the fin；Or it described changes Heat pipe is welded on the fin surface.

Preferably, the heat exchanger tube is alternately convexly equipped on two opposite faces of the fin.

Preferably, the fin indention setting.

Preferably, in the heat exchanger tube and the fin junction, the fin is seamlessly transitted to the heat exchanger tube.

Preferably, the heat exchanger further includes the unilateral header for being set to one end on the finned length direction, described Unilateral header includes flow channel and flow pass, and the flow channel and flow pass are respectively arranged at the fin width Both ends on direction；The both ends of the heat exchanger tube are respectively communicated with the flow channel and the flow pass.

Preferably, the heat exchanger further includes bilateral header, and the bilateral header includes flowing into pipe and effuser, institute State inflow pipe, effuser is respectively arranged at both ends opposite on the finned length direction；The both ends of the heat exchanger tube connect respectively Lead to the inflow pipe and the effuser.

Preferably, the material of the fin and heat exchanger tube is graphite.

Preferably, the fin surface is provided with hydrophobic layer.

The utility model also proposes a kind of heat exchange equipment, including heat exchanger as described in any one of the above embodiments.

Preferably, the heat exchange equipment is air conditioner, refrigerator or dehumidifier.,

Technical solutions of the utility model at least have following beneficial to effect by being formed in the heat exchanger tube in the fin Fruit: (1) make the heat exchanger tube any part with the fin contacts, to make the heat exchange of the heat exchanger tube Yu the fin Area maximizes, but also the heat exchange amount and maximum heat exchange efficiency of the heat exchanger tube and the fin；(2) the heat exchanger tube quilt The fin surrounds, and the heat exchanger tube is not easy to reveal refrigerant, and reliability and safety are more secure；(3) heat exchanger tube and institute Fin is stated by being integrally formed, is manufactured simpler；

Technical solutions of the utility model at least have following beneficial by making the heat exchanger tube extend the fin surface Effect: the contact site of a strip is formed between the heat exchanger tube and the fin, between the heat exchanger tube and the fin Heat exchange is carried out by the contact site of strip, is capable of increasing the heat exchange area of the heat exchanger tube Yu the fin, Jin Erti The heat exchange amount and heat exchange efficiency of the high heat exchanger tube and the fin；

Further, the thickness of the finless parts between the adjacent heat exchanger tube is from the junction of the heat exchanger tube and fin It is gradually thinned in the middle part of to the fin, can so reduce the consumptive material used when fin molding, save the cost；Meanwhile institute State heat exchanger tube finless parts corresponding with the junction of fin with a thickness of most thick, the heat exchanger tube and the fin can be increased Between stable connection, in addition it is also possible to increase the contact area namely heat exchange area of heat exchanger tube described in the fin, simultaneously Also it can reduce windage, improve heat exchange amount and heat exchange efficiency.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the schematic perspective view of one embodiment of the utility model heat exchanger；

Fig. 2 is the structural schematic diagram of the utility model fin and one embodiment of heat exchanger tube；

Fig. 3 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 4 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 5 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 6 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 7 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 8 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Fig. 9 loses for the ratio between the thickness of the utility model heat exchanger tube position and described fin thickness and air side pressure Relationship change figure；

Figure 10 changes finless parts occupied area and the heat exchanger tube position institute between heat exchanger tube for the utility model Account for the relationship change figure of area ratio and heat exchange efficiency of fins；

Figure 11 is the structural schematic diagram of one embodiment of the utility model header, fin and heat exchanger tube；

Figure 12 is the structural schematic diagram of the utility model header, fin and another embodiment of heat exchanger tube；

Figure 13 is the structural schematic diagram of the utility model header, fin and another embodiment of heat exchanger tube；

Figure 14 is the structural schematic diagram of the utility model fin and another embodiment of heat exchanger tube；

Figure 15 is the structural schematic diagram of the utility model fin and one embodiment of heat exchanger tube；

Figure 16 be the utility model heat exchanger and finned tube exchanger, micro-channel heat exchanger under the same conditions, wind speed with The relationship change figure of heat exchange amount；

Figure 17 be the utility model heat exchanger and finned tube exchanger, micro-channel heat exchanger under the same conditions, wind speed with The relationship change figure of the air side coefficient of heat transfer；

Figure 18 be the utility model heat exchanger and finned tube exchanger, micro-channel heat exchanger under the same conditions, wind speed with The relationship change figure of air wide pre. drop.

Drawing reference numeral explanation:

Label	Title	Label	Title
				100	Heat exchanger	32	Flow pass
10	Fin	33	Flow into pipe
				20	Heat exchanger tube	34	Effuser
21	Flow into end	40	Window/bridge piece
				22	Outflow end	41	Bevel phase
23	Flow into end	42	Parallel-segment
				24	Outflow end	50	Interconnecting piece
30	Header	51	Through-hole
				31	Flow channel	60	Diversion pipe
43	Bridge opening

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model Protection scope within.

Referring to Fig. 1, the utility model proposes a kind of heat exchanger 100 in fact, the heat exchanger 100 includes multiple fins 10, heat exchanger tube 20 and at least a header 30.The setting of the multiple interval of fin 10；On each fin 10 at least provided with One heat exchanger tube 20, the heat exchanger tube 20 are formed in the fin 10 or extend 10 surface of fin；The wing Piece 10 is set on the header 30, and the heat exchanger tube 20 and the header 30 are interconnected.

Wherein, for the header 30 for transmitting refrigerant, refrigerant is transferred into the heat exchanger tube 20 through the header 30 It is interior；The heat exchanger tube 20 is used to carry out heat with the fin 10 to exchange, to promote or reduce by 10 temperature of fin；Institute It states fin 10 to exchange for carrying out heat with 10 ambient gas of fin, to promote or reduce by the 10 surrounding gas of fin The temperature of body.

Referring to Fig. 1, the first embodiment as the utility model, the heat exchanger tube 20 is formed in the fin 10 Interior, the heat exchanger tube 20 is integrally formed with the fin 10 by casting craft.

In the prior art, the heat exchanger tube 20 is generally vertically arranged in the fin 10, and the heat exchanger tube 20 passes through Tube expansion technique is fixedly connected with the fin 10, is only capable of between the heat exchanger tube 20 and the fin 10 through the heat exchanger tube 20 Heat exchange is carried out with the junction of the fin 10, the thermal contact resistance between the heat exchanger tube 20 and the fin 10 is larger, leads Cause heat exchange amount and heat exchange efficiency between the heat exchanger tube 20 and the fin 10 lower.Meanwhile the institute connected by tube expansion technique It states between heat exchanger tube 20 and the fin 10 or can have gap, can also reduce between the heat exchanger tube 20 and the fin 10 Heat exchange amount and heat exchange efficiency.

In the present embodiment, the heat exchanger tube 20 is integrally formed with the fin 10 by casting craft, the heat exchange Pipe 20 is formed in the fin 10, is at least had the following beneficial effects:

(1) heat exchanger tube 20 is formed in the fin 10 so that 20 any part of the heat exchanger tube with the wing Piece 10 contacts, so that the heat exchanger tube 20 and the heat exchange area of the fin 10 be made to maximize, but also the heat exchanger tube 20 with The heat exchange amount and maximum heat exchange efficiency of the fin 10；

(2) heat exchanger tube 20 is surrounded by the fin 10, and the heat exchanger tube 20 is not easy to reveal refrigerant, reliability and safety Property is more secure；

(3) heat exchanger tube 20 is integrally formed with the fin 10 by casting craft, is manufactured simpler.

It is appreciated that when the heat exchanger tube 20 is integrally formed with the fin 10 by casting craft, in addition to the heat exchange Except pipe 20 is formed in the fin 10, the heat exchanger tube 20 can also be formed in 10 surface of fin and prolong the fin 10 surfaces extend, and the heat exchanger tube 20 is convexly equipped in 10 surface of fin at this time, between the heat exchanger tube 20 and the fin 10 The contact site of a strip is formed, heat is carried out by the contact site of strip between the heat exchanger tube 20 and the fin 10 Exchange is equally capable of increasing the heat exchange area of the heat exchanger tube 20 and the fin 10, changes described in raising compared with prior art The heat exchange amount and heat exchange efficiency of heat pipe 20 and the fin 10.

Preferably, referring to Fig. 2, the heat exchanger tube 20 is alternately convexly equipped on two opposite faces of the fin 10.

In the present embodiment, the fin 10 is preferably sheet, including two opposite surfaces；The heat exchanger tube 20 is any Size such as caliber size on direction is all larger than the thickness of the fin 10, therefore the heat exchanger tube 20 and the fin 10 are logical When crossing casting craft integrated molding, no matter the heat exchanger tube 20 is formed in the fin 10 or the formation of the heat exchanger tube 20 In 10 surface of fin；The heat exchanger tube 20 necessarily protrudes at least one surface of the fin 10.

In the present embodiment, the heat exchanger tube 20 is alternately convexly equipped on two opposite faces of the fin 10, is defined Are as follows: alternately protrusion is set to two opposite surfaces of the fin 10 to the heat exchanger tube 20.The heat exchanger 100 is by multiple described Fin 10 is folded when setting composition, is spaced setting between the fin 10, the gap between the fin 10 is for the heat exchange air-flow that circulates (arrow direction in Fig. 2), that is, two surfaces of the fin 10 opposite to each other can pass through the air-flow that exchanges heat.

By the way that by the heat exchanger tube 20, alternately protrusion is set to two opposite surfaces of the fin 10, the fin 10 Two surfaces form concaveconvex structure, and when the heat exchange air-flow flows through 10 surface of fin, the concaveconvex structure can be disturbed The heat exchange air-flow, to improve the heat exchange amount and heat exchange efficiency of the fin 10 with the heat exchange air-flow.Meanwhile the heat exchange Pipe 20 is convexly equipped in 10 surface of fin, also can increase heat exchange area.

It is appreciated that the heat exchanger tube 20 the laying mode on the fin 10 can there are many, need to only guarantee described Heat exchanger tube 20 is formed in the fin 10 or the heat exchanger tube 20 is formed in 10 surface of fin and prolongs the fin 10 Surface extends.Such as: the heat exchanger tube 20 also can be set on 10 individual surfaces of the fin；Or the wing First area and second area are at least divided on piece 10, in the first area, the heat exchanger tube 20 is convexly equipped in the wing 10 upper surface of piece, in the second area, the heat exchanger tube 20 is convexly equipped in 10 lower surface of fin；Can certainly to institute It states fin 10 and carries out multizone division, in different regions, the heat exchanger tube 20 can be convexly equipped in the upper table of the fin 10 Face or lower surface.

It is appreciated that the fin 10 is not limited to sheet, the fin 10 can also be bulk, and such as fin 10 is ball Shape when described 20 a part of heat exchanger tube is formed in the fin 10, runs through the sphere；20 another part shape of heat exchanger tube 10 surface of fin described in Cheng Yu and prolong 10 surface of fin extend when, the heat exchanger tube 20 is convexly equipped on the spherical surface.

From the foregoing, it will be observed that when the heat exchanger tube 20 runs through the sphere or when the thickness of the fin 10 is sufficiently thick, institute 10 surface of the fin will not be protruded by stating heat exchanger tube 20 at least partly, that is, in the present embodiment, the heat exchanger tube 20 can be convex It is set to 10 surface of fin out, can also be formed in inside the fin 10 and non-bulging 10 surface of the fin.

From the foregoing, it will be observed that being spaced setting between the multiple fin 10, the gap between the fin 10 is for heat exchange of circulating Air-flow, in the present embodiment, between multiple fins 10 preferably be equidistantly arranged in parallel so that heat exchange air-flow uniformly through The multiple fin 10, while reducing windage of the exchanging air stream by the multiple fin 10 when.It is appreciated that the adjacent wing It can also can also be arranged between piece 10 between angle setting or the adjacent fin 10 with unequal spacing, need to only guarantee institute Stating fin 10 between any two has gap to pass through for exchanging air stream.

Preferably, the fin 10 generally arc shape is arranged, and the section in 10 width direction of fin is arcwall face, To increase the heat exchange area of the fin 10 with heat exchange air-flow.It is further preferred that the bending of the two neighboring fin 10 It is contrary, air flow swirl can be formed between the inner concave for the fin 10 being oppositely arranged, so that the air-flow that makes to exchange heat is described Residence time between fin is longer, thus improving heat exchanging efficiency.

Preferably, it is equidistantly arranged in parallel between the adjacent heat exchanger tube 20 on the same fin 10.

In the present embodiment, the heat exchanger tube is linear tube, the adjacent heat exchanger tube 20 on the same fin 10 Between be equidistantly arranged in parallel, include at least following situation:

First is that adjacent heat exchanger tube when on 10 individual surfaces of the fin is arranged in the heat exchanger tube 20 It is equidistantly arranged in parallel between 20；

Second is that when the heat exchanger tube 20 is alternately convexly equipped in 10 two opposite faces of fin, the fin 10 opposite two It is equidistantly arranged in parallel between the heat exchanger tube 20 on a face and adjacent；

Third is that the fin 10 and surrounding are multiple adjacent when the heat exchanger tube 20 is formed in the block-like fin 10 It is equidistantly arranged in parallel between fin 10.

In the present embodiment, it is equidistantly arranged in parallel between the adjacent heat exchanger tube 20, by refrigerant in the heat exchanger tube 20 It is uniformly sent to each position of the fin 10, improves heat exchange amount and heat exchange between the heat exchanger tube 20 and the fin 10 Efficiency.

In other embodiments, the heat exchanger tube 20 is waveform or fold-line-shaped or is in U-shape, V-arrangement, W-shaped, S-shaped Or the nonlinear types pipe such as M shape, at this point, the heat exchanger tube 20 includes multiple straight lines extended along 10 length direction of fin Section, the spacing between multiple straightways is identical, so that refrigerant in the heat exchanger tube 20 is uniformly sent to the fin 10 Each position, improve the heat exchange amount and heat exchange efficiency between the heat exchanger tube 20 and the fin 10.

Preferably, the internal diameter of the heat exchanger tube 20 or equivalent internal diameter are more than or equal to 0.2mm and are less than or equal to 3mm.

In the present embodiment, when the flow area in the heat exchanger tube 20 is round, the internal diameter of the heat exchanger tube 20 is big In equal to 0.2mm and less than or equal to 3mm；When flow area is not circle in the heat exchanger tube 20, as in the heat exchanger tube 20 Flow area be square, rectangle, polygon isosceles trapezoid or when abnormity, the equivalent diameter is by the non-circular stream Internal diameter corresponding to logical round flow area of the Intercepting Filter at same homalographic, the equivalent internal diameter are more than or equal to 0.2mm and small In equal to 3mm.

In the present embodiment, the internal diameter of the heat exchanger tube 20 or equivalent internal diameter are smaller, and the refrigerant of equal volume flows through institute The speed for stating heat exchanger tube 20 is also bigger, and the heat exchange that equal volume refrigerant can be carried out is also more；Meanwhile larger interior diameter is changed Heat pipe 20, since flow area is larger, the refrigerant in flow area center apart from 20 tube wall of heat exchanger tube farther out, no Heat exchange can be sufficiently carried out with 20 tube wall of heat exchanger tube；And the internal diameter or equivalent internal diameter of the heat exchanger tube 20 are smaller, it is described Refrigerant is closer apart from 20 tube wall of heat exchanger tube in heat exchanger tube 20, can largely improve between the heat exchanger tube 20 and refrigerant Heat exchange.

Meanwhile the heat exchanger tube 20 of larger interior diameter, biggish windage can be formed on 10 surface of fin.Therefore, in this reality It applies in example, 20 internal diameter of heat exchanger tube or equivalent internal diameter are more than or equal to 0.2mm and are less than or equal to 3mm.By the heat exchanger tube 20 Internal diameter or equivalent internal diameter do small as far as possible, can improve refrigerant flow rate in heat exchanger tube 20, make to change described in refrigerant distance in heat exchanger tube 20 Heat pipe 20 is relatively close, to improve the heat exchange amount and heat exchange efficiency between the heat exchanger tube 20 and refrigerant；Reduce the heat exchange simultaneously The windage of pipe 20.

Preferably, the setting referring to Fig. 3, fin 10 is serrated.

In the present embodiment, the arragement direction that the fin 10 prolongs the heat exchanger tube 20 is serrated setting, the fin Multiple tooth tips are formed on 10, the heat exchanger tube 20 is preferably set at 10 tooth tip of fin.The whole saw of the fin 10 Dentation setting also can be described as the whole wavy, fold-line-shaped of the fin 10, S-shaped, the setting of W-shaped or M shape.Passing through will The parallel cloth set direction that fin 10 prolongs the heat exchanger tube 20 is serrated setting, forms multiple tooth tips on the fin 10, is changing When thermal current flows through 10 surface of fin, the multiple tooth tip can disturb the heat exchange air-flow, to improve the fin 10 with it is described heat exchange air-flow heat exchange amount and heat exchange efficiency.

Preferably, referring to Figure 4 together -6, window and/or bridge piece 40 are provided on the fin 10.

In the present embodiment, the window and/or bridge piece 40 are the bulge-structure for being set to 10 arbitrary surfaces of fin, Exchanging air stream passes through 10 surface of fin, and the window and/or bridge piece 40 can disturb air, at the same the window and/or Bridge piece 40 also can carry out heat exchange with exchanging air stream, to improve the heat exchange amount and heat exchange of the fin 10 with the heat exchange air-flow Efficiency.

In one embodiment, as shown in figure 4, multiple windows 40 preferably prolong along the length direction of the heat exchanger tube 20 Laying is stretched, meanwhile, it is interval setting between multiple windows 40, the gap between window is used for through heat exchange air-flow.It is appreciated that The multiple window 40 can be laid on the fin 10 according to any regular, such as equidistant parallel laying.

The window 40 can be arbitrary shape, such as arc shape, sheet, broken line shape etc., in the present embodiment, the window 40 be preferably fold-line-shaped window, and the fold-line-shaped window includes bevel phase 41 and parallel-segment 42.The heat exchange air-flow is to blow to paper The direction in face is blown between the window 40.

In another embodiment, as seen in figs. 5-6,40 both ends of bridge piece are set to 10 surface of fin, described Bridge opening 43 is formed between 10 surface of bridge piece 40 and the fin, the bridge opening 43 is used for through heat exchange air-flow.The bridge piece 40 13 shape of bridge opening can be arch, semicircle, rectangular, isosceles trapezoid etc..When the exchanging air stream passes through the fin 10, from described It is blown in bridge opening 43.

Preferably, the window or bridge piece 40 are L1, two windows or bridge in the length of 10 length direction of fin Piece 40 is the ratio of L2, the L1 and the L2 between 0.8-1.2 in the spacing of 10 length direction of fin；The window Piece or bridge piece 40 are D1, two windows or bridge piece 40 in the 10 width side of fin in the width of 10 width direction of fin To spacing be D2, the D1 and the D2 ratio between 0.8-1.2.

It is further preferred that the ratio of the L1 and L2 is 1, also with regard to the window or bridge piece 40 in the fin 10 The length of length direction is that be equal to two windows or bridge piece 40 in the spacing of 10 length direction of fin be L2 to L1.The D1 Ratio with the D2 is 1 namely the window or bridge piece 40 in the width of 10 width direction of fin are that D1 is equal to two institutes It is D2 that window or bridge piece 40, which are stated, in the spacing of 10 width direction of fin.

If described L2, D2 are too small, the production difficulty of the window or bridge piece 40 will increase, if described L2, D2 are too big, The window or the heat transfer effect of bridge piece 40 will reduce, the ratio range of the embodiment of the present invention L1 and the L2, the D1 with The ratio range of the D2 can reduce the production difficulty of the window or bridge piece 40, while guarantee the window or bridge piece 40 Heat transfer effect.

Preferably, the spacing between the adjacent fin 10 is equal to the height of the window and/or bridge piece 40.

In the present embodiment, the spacing between the adjacent fin 10 is equal to the height of the window and/or bridge piece 40, That is, the top for the window and/or bridge piece 40 being disposed therein on a fin 10 is connected to another adjacent fins 10 On surface, the height of the window and/or bridge piece 40 is equal to by the spacing being arranged between the adjacent fin 10, will be multiple The fin 10 is folded to be set when being assembled into the heat exchanger 100, and only the multiple fin 10 need to be stacked together, pass through the window The height of piece and/or bridge piece 40 can determine the distance between adjacent fins 10, greatly simplify the assembling work of the heat exchanger 100 Sequence is more convenient for assembling, and manufactures simpler.

Preferably, the top of the window on the fin 10 and/or bridge piece 40 and the adjacent welding of fin 10 are solid It is fixed.

In the present embodiment, the height of the window and/or bridge piece 40 is equal to based on the spacing between the adjacent fin 10 The top of the technical solution of degree, the window and/or bridge piece 40 on the fin 10 is connected to the table of another adjacent fins 10 On face, directly the top of the window and/or bridge piece 40 and adjacent 10 surface of fin are welded and fixed for the present embodiment, welding Position is easy to determine, and enhances the stable connection between the adjacent fin 10.Further, since the adjacent fin 10 it Between be welded and fixed by the window and/or bridge piece 40, convenient for the heat transfer between the adjacent fin 10, so that the heat exchange The whole heat of device 100 tends to be balanced, improves the heat exchange amount and heat exchange efficiency of the heat exchanger 100.

Preferably, referring to Fig. 7,10 part of fin (such as Fig. 7 brace part) between the adjacent heat exchanger tube 20 The junction of thickness from the heat exchanger tube 20 and fin 10 be gradually thinned into the fin 10.

In the present embodiment, the thickness of 10 part of fin between the adjacent heat exchanger tube 20 is from the heat exchanger tube 20 and wing The junction of piece 10 is gradually thinned into the fin 10, that is, from the junction of the heat exchanger tube 20 and fin 10 to described 10 middle part of fin, the thickness of the fin 10 are gradually thinned, and can so reduce the consumptive material used when the fin 10 molding, section About cost；Meanwhile the heat exchanger tube 20 10 part of fin corresponding with the junction of fin 10 with a thickness of most thick, can increase Stable connection between the heat exchanger tube 20 and the fin 10, in addition it is also possible to increase the fin 10 and the heat exchange The contact area namely heat exchange area of pipe 20, while also can reduce windage, improve heat exchange amount and heat exchange efficiency.

In this embodiment, it is preferred that corresponding 10 lightening holes surface of fin forms groove between the heat exchanger tube 20, The groove is V-shaped groove.

As a kind of variant embodiment, corresponding fin lightening holes surface forms groove, institute between the heat exchanger tube 20 Stating groove is arc groove.

It is appreciated that can to form two opposite surfaces of the groove or the fin equal for the fin any surface It is formed with the groove.

Preferably, referring to Fig. 7, in the heat exchanger tube 20 and 10 junction of fin (such as A meaning portion in Fig. 7 Point), the smooth transition of fin 10 to the heat exchanger tube 20.

In the present embodiment, in the heat exchanger tube 20 and 10 junction A of fin, the smooth transition of fin 10 to institute Heat exchanger tube 20 is stated, that is, the fin 10 is that radian transits to described change in the heat exchanger tube 20 and 10 junction of fin Heat pipe 20, the junction be approximately one it is horn-like encase the heat exchanger tube 20, so can reduce exchanging air stream pass through by Resistance when the junction A；Meanwhile the smooth transition of fin 10 to the heat exchanger tube 20 makes the heat exchanger tube 20 and wing The corresponding fin 10 in the junction of piece 10 with a thickness of most thick, the company between the heat exchanger tube 20 and the fin 10 can be increased Stability is connect, in addition it is also possible to increase the contact area namely heat exchange area of the fin 10 and the heat exchanger tube 20, raising is changed Heat and heat exchange efficiency.

Preferably, the marginal portion on 10 length direction of fin is in tapered setting (such as B meaning part in Fig. 5), That is, the brim-portion thickness on 10 length direction of fin is thinner than 10 mid portion thickness of fin, heat exchange air-flow stream is reduced Resistance when entering between the fin 10.

Preferably, also referring to Fig. 8-10, when the heat exchanger tube 20 extends 10 surface of fin, the heat exchange The thickness of 20 position of pipe, that is, the overall thickness c of the heat exchanger tube 20 and the fin 10 and 10 thickness d of the fin it It is less than or equal to 15 than being more than or equal to 1；When the heat exchanger tube 20 is formed in the fin 10,20 position of heat exchanger tube Thickness namely the thickness c and the ratio between 10 thickness d of fin of the heat exchanger tube 20 itself be more than or equal to 1 and be less than or equal to 15.

As shown in figure 8, in the present embodiment, when the heat exchanger tube 20 extends 10 surface of fin, the heat exchange The thickness c of 20 position of pipe is the summation of 20 thickness of heat exchanger tube and 10 thickness d of fin.When 20 shape of heat exchanger tube When in fin 10 described in Cheng Yu, the thickness c for stating 20 position of heat exchanger tube is 20 thickness of heat exchanger tube.It is practical In production process, the thickness of 20 position of heat exchanger tube is got over hour, and heat exchanger tube 20 is smaller, the difficult processing of the heat exchanger tube 20 It spends bigger.

As shown in figure 9, when the ratio between the thickness c of 20 position of heat exchanger tube and 10 thickness d of fin c/d are bigger, Air side pressure loss is bigger, and the air side pressure loss is air-pressure drop of the exchanging air stream after the fin 10, by Fig. 9 it is found that when the ratio between the maximum gauge c of 20 position of heat exchanger tube and 10 thickness d of fin be greater than 15 when, air side The pressure loss becomes larger suddenly, and air pressure declines quickly, namely the decaying of heat exchange air velocity is quickly, since the heat exchanger tube 20 is convex On the fin 10, cause the heat exchange air-flow for flowing through the heat exchanger tube 20 that can encounter bigger resistance, influences the air-flow that exchanges heat Heat transfer effect.

It is small that the ratio between the thickness of preferably described 20 position of heat exchanger tube of the present embodiment and 10 thickness of fin are more than or equal to 1 In being equal to 15, the thickness of 20 position of heat exchanger tube and the thickness proportion relationship of 10 thickness of fin are limited, on the one hand Guarantee that relatively described 10 thickness of fin of the thickness of 20 position of heat exchanger tube will not be too small, namely guarantees the heat exchanger tube 20 Internal diameter or equivalent internal diameter will not be too small, to reduce the difficulty of processing of the heat exchanger tube 20；On the other hand it is changed described in guaranteeing The ratio between relatively described 10 thickness of fin of the thickness of 20 position of heat pipe is not too large, namely guarantees the internal diameter of the heat exchanger tube 20 Or equivalent internal diameter is not too large, reduces the resistance for flowing through the heat exchange air-flow of the heat exchanger tube 20, slows down heat exchange air velocity Decaying, to improve the heat transfer effect of heat exchange air-flow.

Preferably, when the heat exchanger tube 20 extends 10 surface of fin, the heat exchanger tube 20 and the fin 10 Overall thickness and the ratio between 10 thickness of fin be 5；When the heat exchanger tube 20 is formed in the fin 10, the heat exchanger tube The ratio between 20 thickness and 10 thickness of fin are 5.

Preferably, the 10 part occupied area b of fin between the adjacent heat exchanger tube 20 and 20 institute of the heat exchanger tube are in place Set b/a≤10 the ratio between occupied area a.

As shown in Figure 10, in the present embodiment, it will do it heat between the heat exchanger tube 20 and the fin 10 to exchange, when 10 part occupied area b of fin between the adjacent heat exchanger tube 20 is got over compared to the 20 position occupied area a of heat exchanger tube When big, the heat dissipation performance of 10 part of fin is better, radiates more abundant；But it will lead between the adjacent heat exchanger tube 20 10 part radiating efficiency of fin can reduce；Namely when between the adjacent heat exchanger tube 20 10 part occupied area b of fin and institute State the ratio between 20 position occupied area a of heat exchanger tube b/a it is bigger when, the heat dissipation of 10 part of fin is more abundant, but will lead to The 10 part radiating efficiency of fin reduces.

The utility model limits 10 part occupied area b of fin and the heat exchange between the adjacent heat exchanger tube 20 B/a≤10 the ratio between 20 position occupied area a of pipe, by limiting shared by 10 part of fin between the adjacent heat exchanger tube 20 The opposite accounting of area b and the 20 position occupied area a of heat exchanger tube, so that the heat dissipation area of the fin 10 and heat dissipation Efficiency is as balanced as possible, radiating efficiency with higher while the fin 10 is with larger heat dissipation area.

Preferably, the finless parts occupied area b between the adjacent heat exchanger tube and face shared by the fin position The ratio between product a is 5.

Preferably, referring to Fig. 1, the fin 10 extends an interconnecting piece 50, the interconnecting piece to the header 30 50 thickness are gradually increased from the fin 10 to the header 30.

In the prior art, several openings are opened up on the header 30, the heat exchanger tube 20 is inserted into the collection by opening It in flow tube 30, needs to be inserted into the time in production process, causes to produce and process efficiency reduction, while increasing for insertion opening also increases The risk of secondary refrigerant leakage reduces the reliability and safety of heat exchanger 100.

In the present embodiment, the fin 10 extends an interconnecting piece 50 to the header 30, the interconnecting piece 50 with The header 30 is welded and fixed or pours integrated molding with the header 30, and 50 thickness of interconnecting piece is from the fin 10 are gradually increased namely the interconnecting piece 50 is closer to the header 30, the thickness of the interconnecting piece 50 to the header 30 Degree is bigger, to increase the contact area of the interconnecting piece 50 and the header 30, enhances the header 30 and the wing Stable connection between piece 10.

In particular, it should be pointed out that the interconnecting piece 50 be welded and fixed with the header 30 or with the header 30 Integrated molding is poured, the interconnecting piece 50 is to be smoothly connected with the header 30, avoids fin 10 or heat exchanger tube 20 direct The risk that the refrigerant that insertion header 30 generates is easy to reveal, since interconnecting piece 50 and header 30 pass through welding technique or one Body formed combination increases the stable connection between the header 30 and the fin 10, while reducing production and processing difficulty, Improve production efficiency.

It is further preferred that the caliber for the heat exchanger tube 20 being located in the interconnecting piece 50 is from the fin 10 to described Header 30 is gradually increased.To increase the inlet area that refrigerant in the header 30 flows into the heat exchanger tube 20, make refrigerant It is easier to flow into the heat exchanger tube 20 from the header 30.

Also referring to Fig. 1 and Figure 11, in the present embodiment, the position that the header 30 is connect with the interconnecting piece 50 Multiple through-holes 51 are offered, the multiple 51 quantity of through-hole corresponds to the quantity of the heat exchanger tube 20 on the fin 10, described to change Heat pipe 20 is connected to by the through-hole 51 with the header 30, and refrigerant flows into institute by the through-hole 51 in the header 30 It states in heat exchanger tube 20.

Preferably, referring to Fig. 1,30 inlet of the header is provided with hollow diversion pipe 60, the heat exchanger tube 20 It is connected to the header 30, and the flow area in the diversion pipe 60 is less than the flow area in the header 30.

In the present embodiment, refrigerant enters in the heat exchanger tube 20 after the diversion pipe 60, the header 30；Refrigerant It is high-pressure liquid in the diversion pipe 60, since the diversion pipe 60 is connected to the header 30, and the diversion pipe 60 Interior flow area is less than the flow area in the header 30, and high-pressure liquid refrigerant flows into header from the diversion pipe 60 When 30, air pressure rapid drawdown, partial high pressure liquid refrigerants part is vaporized into gaseous state, and refrigerant becomes gas-liquid mixed in the header 30 The refrigerant of state, gas-liquid mixed state can be more uniformly circulated in the heat exchanger tube 20, improve refrigerant in multiple heat exchanger tubes 20 Distributing homogeneity, to improve the heat transfer effect of the heat exchanger 100.

In addition, when the heat exchanger 100 as evaporator in use, refrigerant from high-pressure liquid be vaporized into it is gaseous during A large amount of heat is absorbed, can be further improved the cooling effect of the evaporator.

Preferably, the header 30 is provided with temperature-sensitive memory metal close to one end of the diversion pipe 60 and (schemes not mark Show).

In the present embodiment, by being provided with temperature-sensitive memory gold close to one end of the diversion pipe 60 in the header 30 Belong to, the temperature-sensitive memory metal can carry out deformation according to temperature change, enter the collection to adjust from the diversion pipe 60 The flow of the refrigerant of flow tube 30, to adjust the heat exchange amount of the heat exchanger 100.

Preferably, the diversion pipe 60 is closer apart from 30 entrance of header, the connection section in the diversion pipe 60 It is bigger.To increase the inlet area that refrigerant in the diversion pipe 60 flows into the header 30, it is easier to refrigerant from water conservancy diversion Pipe 60 flows into the header 30.

Preferably, the fin 10 is arranged with the header 30 in angle, and the angular range is 30 ° -90 °.

In the present embodiment, the header 30 is elongated tubular, and the fin 10 is sheet, the fin 10 and the collection Flow tube 30 is in the length extending direction of the surface extending direction and the header 30 of angle setting namely the fin 10 in folder Angle setting；The length extending direction of the header 30 fin 10 generally vertical namely described with the heat exchange inflow direction of air-flow Surface extending direction and heat exchange air-flow inflow direction in angle be arranged and angular range be 0 ° -60 °.The table of the fin 10 When the inflow direction angle of face extending direction and heat exchange air-flow is 0 °, the surface extending direction of the fin 10 and the air-flow that exchanges heat Inflow direction is parallel, and the exchanging air levelling fair current carries out heat exchange through the surface of the fin 10.

The inflow direction of the surface extending direction of the fin 10 and heat exchange air-flow be arranged in angle and angular range be≤ At 60 ° and > 0 °, the surface extending direction and the inflow direction of heat exchange air-flow of the fin 10 are not parallel, and the air-flow that exchanges heat is with certain Angle is blown between the fin 10, is made the air-flow back and forth rebound advance between the fin 10 that exchanges heat, is increased heat exchange air-flow in institute The residence time between fin 10 is stated, to improve the heat exchange amount and heat exchange efficiency of the fin 10 with heat exchange air-flow.

Referring to Fig. 1, second of embodiment as the utility model, this second of embodiment and first embodiment are not Be with place: the heat exchanger tube 20 extends 10 surface of fin, and the heat exchanger tube 20 is welded in 10 table of fin Face and the fin 10 are integrally formed.

In the present embodiment, the heat exchanger tube 20 10 surface of fin is welded in be integrally formed with the fin 10, Make that the heat exchanger tube 20 extends 10 surface of fin namely the heat exchanger tube 20 is convexly equipped in 10 surface of fin, it is described The contact site of a strip is formed between heat exchanger tube 20 and the fin 10, is led between the heat exchanger tube 20 and the fin 10 The contact site for crossing strip carries out heat exchange, is capable of increasing the heat exchange area of the heat exchanger tube 20 and the fin 10, in turn Improve the heat exchange amount and heat exchange efficiency of the heat exchanger tube 20 and the fin 10.

Referring to Fig. 2, preferably, the heat exchanger tube 20 is alternately convexly equipped in two opposite faces of the fin 10 by welding On.

In the present embodiment, the fin 10 is preferably sheet, including two opposite surfaces；The heat exchanger tube 20 and institute When stating fin 10 by welding procedure integrated molding, the heat exchanger tube 20 necessarily protrudes at least one surface of the fin 10.

In the present embodiment, the heat exchanger tube 20 is alternately convexly equipped on two opposite faces of the fin 10, is defined Are as follows: alternately protrusion is set to two opposite surfaces of the fin 10 to the heat exchanger tube 20.The heat exchanger 100 is by multiple described When fin 10 forms, setting is spaced between the fin 10, the gap between the fin 10 is used for circulation heat exchange air-flow, That is, two opposite surfaces of the fin 10 can pass through the air-flow that exchanges heat.By the way that by the heat exchanger tube 20, alternately protrusion is set to Two opposite surfaces of the fin 10, the surface of the fin 10 form concaveconvex structure, flow through in the heat exchange air-flow described When 10 surface of fin, the concaveconvex structure can disturb the heat exchange air-flow, to improve the fin 10 and the exchanging air The heat exchange amount and heat exchange efficiency of stream.Meanwhile the heat exchanger tube 20 is convexly equipped in 10 surface of fin, also can increase heat exchange area.

It is appreciated that laying mode of the heat exchanger tube 20 on the fin 10 can have kind, it need to only guarantee described change Heat pipe 20, which is welded in 10 surface of fin and prolongs 10 surface of fin, to be extended.Such as: the heat exchanger tube 20 can also weld It connects on 10 individual surfaces of the fin；Or it is at least divided into first area and second area on the fin 10, In the first area, the heat exchanger tube 20 is convexly equipped in 10 upper surface of fin by welding, in the second area, The heat exchanger tube 20 is convexly equipped in 10 lower surface of fin by welding；Multizone can certainly be carried out to the fin 10 to draw Point, in different regions, the heat exchanger tube 20 can be convexly equipped in the upper surface or lower surface of the fin 10 by welding.

It is appreciated that the fin 10 is not limited to sheet, the fin 10 can also be bulk, and such as fin 10 is length When cube, when the heat exchanger tube 20 is formed in 10 surface of cuboid fin and prolongs 10 surface of fin and extend, institute at this time Heat exchanger tube 20 is stated to be convexly equipped on the cuboid surface by welding.

From the foregoing, it will be observed that being spaced setting between the multiple fin 10, the gap between the fin 10 is for heat exchange of circulating Air-flow, in the present embodiment, between the multiple fin 10 preferably be equidistantly arranged in parallel so that heat exchange air-flow uniformly through The multiple fin 10, while reducing windage of the exchanging air stream by the multiple fin 10 when.It is appreciated that the adjacent wing It can also can also be arranged between piece 10 between angle setting or the adjacent fin 10 with unequal spacing, need to only guarantee phase There is gap to pass through for exchanging air stream between the adjacent fin 10.

Also referring to Figure 12-13, it is preferable that be welded in the heat exchanger tube 20 on the fin 10 be waveform and/ Or fold-line-shaped.

In the present embodiment, the heat exchanger tube 20 being welded on the fin 10 is wavy and/or fold-line-shaped, including Two kinds of forms: first is that 10 surface of the fin is plane, the heat exchanger tube 20 wavy and/or fold-line-shaped setting itself is (such as Shown in Figure 12), the heat exchanger tube 20 of the waveform or fold-line-shaped is directly welded on 10 surface of fin, second is that the fin 10 surfaces itself are also waveform or fold-line-shaped, the heat exchanger tube 20 and the wave on the fin 10 of the waveform or fold-line-shaped Shape or fold-line-shaped surface are adapted, the heat exchanger tube 20 of the waveform or fold-line-shaped be entrenched in waveform on the fin 10 or Fold-line-shaped surface is simultaneously welded and fixed with 10 surface of fin.

The heat exchanger tube 20 is wavy or fold-line-shaped be also described as the whole indention of the heat exchanger tube 20, U-shaped, V-arrangement, W-shaped, S-shaped or M shape.

It is appreciated that the heat exchanger tube 20 can also be the most common linear tube.

In the present embodiment, the heat exchanger tube 20 being welded on the fin 10 is that waveform and/or fold-line-shaped are arranged, Length of the single heat exchanger tube 20 on the fin 10 can be lengthened, refrigerant is made to flow through path in the heat exchanger tube 20 It is longer, to improve the heat exchange amount of the heat exchanger tube 20 and refrigerant.

Also referring to Fig. 1, Figure 12 and Figure 13, as the 3rd embodiment of the utility model, in above-mentioned first embodiment Or on the basis of second embodiment, the header 30 at least has the following two kinds set-up mode；

As shown in FIG. 11 and 12, described the first set-up mode of header 30 is: the heat exchanger 100 further includes setting Unilateral header 30 in one end on 10 length direction of fin, the unilateral header 30 include flow channel 31 and outflow Channel 32, the flow channel 31 and flow pass 32 are respectively arranged at the both ends in 10 width direction of fin；It is described to change The both ends of heat pipe 20 are respectively communicated with the flow channel 31 and the flow pass 32.

When the header is unilateral header 30, the heat exchanger tube 20 can use U-shaped, V on the fin 10 Shape, W-shaped, S-shaped or M shape etc. are the arrangement form of bending, and each heat exchanger tube 20 only need to flow into end in heat exchanger tube 20 21 setting one import, 20 outflow end 22 of heat exchanger tube be arranged one outlet, by the inlet and outlet with it is described unilateral Header 30 is connected, to greatly reduce the quantity for opening up through-hole 51 on the unilateral header 30, is convenient for the inflow End 21 and outflow end 22 are welded on the unilateral header 30, reduce secondary refrigerant leakage point, improve reliability and safety.

Meanwhile binary channels shape of the header 30 using unilateral header 30 including flow channel 31 and flow pass 32 Formula, the inflow end 21 of the heat exchanger tube 20 and outflow end 22 and unilateral header 30 are integrally formed or by being welded to connect, structure Compact, heat exchange amount and heat exchange efficiency are high, can be realized the Miniaturization Design of heat exchanger 100.

Referring to Fig. 1,30 second of set-up mode of header is: the heat exchanger further includes bilateral header 30, The bilateral header 30 includes that inflow pipe 33 and effuser 34, the inflow pipe 33, effuser 34 are respectively arranged at the wing Opposite both ends on 10 length direction of piece；The both ends of the heat exchanger tube 20 are respectively communicated with the inflow pipe 33 and the effuser 34。

When the header is bilateral header 30, the heat exchanger tube 20 is on the fin 10 in addition to conventional straight line Type pipe arrangement can also be in the arrangement form of bending using U-shaped, V-arrangement, W-shaped, S-shaped or M shape etc., each described to change An import and one outlet need to be arranged in heat pipe 20, and only the inlet and outlet needs to be arranged in 10 length direction of fin Upper opposite both ends.

Preferably, when the header 30 is bilateral header, the inflow pipe 33 and effuser 34 are flat, so that Obtain the inflow pipe 33, effuser 34 and 10 smooth engagement of fin.

Preferably, the material of the fin 10 and heat exchanger tube 20 is graphite.

In the present embodiment, the fin 10 and heat exchanger tube 20 are graphite material, and graphite material has stronger thermally conductive Performance can be improved the heat exchange amount and heat exchange efficiency of the fin 10 and heat exchanger tube 20.The graphite material is preferably graphene Material.

Preferably, hydrophobic layer is provided on 10 surface of fin.In the present embodiment, when 100 conduct of heat exchanger Evaporator in use, on the fin 10 condensation have condensed water, be provided with hydrophobic layer on the fin 10, be convenient for the condensed water It is flowed down from the fin 10 and flows out the evaporator.

Also referring to Figure 14-15, as the fourth embodiment of the utility model, in above-mentioned first embodiment or second On the basis of embodiment or 3rd embodiment, a kind of cutting structure of fin 10 is claimed in this fourth embodiment.

In the present embodiment, it is recessed that at least one cutting is set on an at least surface for the default cutting position of the fin 10 The thickness of corresponding 10 part of fin is thinner than the thickness of 10 other parts of fin in portion C, the cutting recess portion C.The fin 10 Default cutting position on be provided with the recess portion C on an at least surface, due to 10 part of fin corresponding in the recess portion C Thickness is thinner than the thickness of 10 other parts of fin, to reduce the cutting difficulty of the fin 10, while can also reduce windage, mention Rise heat transfer effect.

Preferably, two opposite surfaces of the fin 10 are provided with the cutting recess portion C, while described in order to ensure The intensity of fin 10 in process of production, the length for defining the cutting recess portion C is M, and the range of M is 0.5-1mm, described in definition Cut relationship satisfaction 1/4≤M/H≤1/2 with a thickness of H, between thickness H and length M of recess portion C inner fin 10.It is appreciated that In the case where not considering the intensity of the fin 10 in process of production, the length of the cutting recess portion C be M and thickness H it Between ratio can be without limitation.

In one embodiment, the cutting recess portion C is the V-shaped groove formed to 10 sunken inside of fin, defines the V The angle between 10 surface of fin that the groove face of shape slot connects with the groove face is A, and the included angle A meets 150 °≤A≤170 °.

In one embodiment, the cutting recess portion C is the arc groove formed to 10 sunken inside of fin, the arc The radius R of slot meets 8mm≤R≤15mm.

In one embodiment, it is provided with two punishment on the default cutting position of the fin 10 and cuts recess portion C, at described two Cutting recess portion C, which connects to being arranged, forms a W-shaped groove.During cutting to the fin 10, wherein one point need to be only cut off Cut recess portion C all can, to further decrease the cutting difficulty of locating fin 10.

As one embodiment, it when the heat exchanger 100 is practical as the evaporator of air conditioner, is coagulated on the fin 10 Condensed water is had, the heat exchanger tube 20 and the fin 10 are placed vertically, under the effect of gravity, condensed water is from the fin 10 It flows down and flows out the evaporator, drainage performance is excellent.To solve in the prior art since 20 caliber of heat exchanger tube is excessive, and change Heat pipe 20 is arranged horizontally, and leads to the problem that condensed water elimination is unsmooth.

Also referring to Figure 16-18, specifically, the heat dissipation effect of heat exchanger 100 is directly proportional to radiating efficiency, and heat exchange amount Bigger, radiating efficiency is higher, and heat dissipation effect is better.According to heat transfer theory:

Heat exchange amount Q=KA_o·ΔT (1)

Air side coefficient of heat transfer h_o=(A_p+η·A_f)/A_o×h_a (3)

Wherein, A_o: air side heat-conducting area；h_w: medium side pyroconductivity；A_p: pipe heat-conducting area；h_a: finless parts air Side conductivity；A_pi: medium side heat-conducting area；A_f: finless parts heat-conducting area；A_co: the contact area of fin and pipe；η: fin effect Rate；h_c: contact conductivity of the fin with pipe；Δ T: temperature difference.

Marriage relation formula (1), (2), (3) it is found that heat exchange amount and overall heat-transfer coefficient and air side heat-conducting area at linear positive Relationship can be realized to improve radiating efficiency by way of increasing overall heat-transfer coefficient and air side heat-conducting area.However, total Heat transfer coefficient is influenced by air side heat-conducting area and the air side coefficient of heat transfer, and is closed with air side heat-conducting area at reversed System and the air side coefficient of heat transfer are at positive relationship.This is because air side heat-conducting area is bigger on fin 10, fin 10 and air Contact surface it is bigger, while also having compressed the contact area between fin 10 and heat exchanger tube 20, make fin 10 heat-conducting area and The heat-conducting area of heat exchanger tube 20 reduces simultaneously, and heat transfer efficiency between the two is caused to reduce, so that heat transfer effect is poor, heat It is difficult to carry out heat exchange by fin 10 and air, so that the air side coefficient of heat transfer be made to reduce, overall heat-transfer coefficient reduces, heat exchange amount It reduces.Therefore, it is desirable to obtain ideal heat dissipation effect, need to meet wanting for the heat-conducting area between fin 10 and heat exchanger tube 20 It asks, meanwhile, need to increase the air side heat exchange area of fin 10.

As shown in Figure 16 to Figure 18, Figure 16 and Figure 18 have been respectively compared this heat exchanger 100 and common fin tube type heat exchange The heat exchange amount and the air side coefficient of heat transfer of device and micro-channel heat exchanger under square one.According to experimental result it is found that same Under the conditions of, this heat exchanger 100 has bigger heat output and air side heat-exchange system, with common fin-tube heat exchanger and micro- Channel heat exchanger is compared, and heat dissipation effect is more excellent.This heat exchanger 100 and common fin-tube heat exchanger are compared in Fig. 4 With the loss of air side pressure of the micro-channel heat exchanger under square one, according to the experimental results, with finned tube exchanger phase Than the airside pressure drop low rate of this heat exchanger 100 is smaller, and windage performance has apparent advantage.

The utility model also provides a kind of heat exchange equipment (figure does not indicate), including heat exchange described in any of the above-described embodiment Device 100.The heat exchange equipment includes the equipment that air conditioner, refrigerator or dehumidifier etc. need to carry out heat exchange.Due to described Heat exchange equipment includes the heat exchanger 100 of any of the above-described embodiment, therefore, at least with above-mentioned heat exchanger 100 all beneficial to imitate Fruit, details are not described herein.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of heat exchanger, which is characterized in that the heat exchanger includes:

Multiple fins, the multiple fin interval setting；

Heat exchanger tube extends the fin surface or is formed in the fin；

Wherein, in the middle part of from the junction of the heat exchanger tube and fin to the fin, corresponding fin part between the heat exchanger tube The thickness divided is gradually thinned.

2. heat exchanger according to claim 1, which is characterized in that corresponding finless parts surface shape between the heat exchanger tube At groove, the groove is V-shaped groove.

3. heat exchanger according to claim 1, which is characterized in that corresponding finless parts surface shape between the heat exchanger tube At groove, the groove is arc groove.

4. according to the described in any item heat exchangers of Claims 2 or 3, which is characterized in that the fin any surface forms described Groove.

5. according to the described in any item heat exchangers of Claims 2 or 3, which is characterized in that two opposite surfaces of the fin are equal It is formed with the groove.

6. heat exchanger according to claim 1, which is characterized in that the multiple heat exchanger tube and the fin are integrally formed simultaneously It is convexly equipped on the fin；Or the heat exchanger tube is welded on the fin surface.

7. heat exchanger according to claim 1, which is characterized in that it is opposite that the heat exchanger tube is alternately convexly equipped in the fin On two faces.

8. heat exchanger according to claim 1, which is characterized in that the fin indention setting.

9. heat exchanger according to claim 1, which is characterized in that described in the heat exchanger tube and the fin junction Fin is seamlessly transitted to the heat exchanger tube.

10. heat exchanger according to claim 1, which is characterized in that the heat exchanger further includes that be set to the fin long Spend the unilateral header of one end on direction, the unilateral header includes flow channel and flow pass, the flow channel and Flow pass is respectively arranged at the both ends on the fin width direction；The both ends of the heat exchanger tube are respectively communicated with described flow into and lead to Road and the flow pass.

11. heat exchanger according to claim 1, which is characterized in that the heat exchanger further includes bilateral header, described double Side header includes flowing into pipe and effuser, and the inflow pipe, effuser are respectively arranged on the finned length direction relatively Both ends；The both ends of the heat exchanger tube are respectively communicated with the inflow pipe and the effuser.

12. heat exchanger according to claim 1, which is characterized in that the material of the fin and heat exchanger tube is graphite.

13. heat exchanger according to claim 1, which is characterized in that the fin surface is provided with hydrophobic layer.

14. a kind of heat exchange equipment, which is characterized in that including such as described in any item heat exchangers of claim 1-13.

15. heat exchange equipment according to claim 14, which is characterized in that the heat exchange equipment be air conditioner, refrigerator or Dehumidifier.