CN215639002U

CN215639002U - Fin, heat exchanger, indirect heating equipment and air conditioner

Info

Publication number: CN215639002U
Application number: CN202121164524.6U
Authority: CN
Inventors: 山田贤一; 坂内宣
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-25
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a heat exchanger, fins thereof, heat exchange equipment and an air conditioner, wherein the fins comprise first heat exchange pipelines positioned in the fins and second heat exchange pipelines positioned in the fins; the first heat exchange tubes and the second heat exchange tubes intersect and are communicated at the intersection so that the heat exchange medium conveyed through the first heat exchange tubes and the heat exchange medium conveyed through the second heat exchange tubes can be mixed at the intersection. In the fin, the first heat exchange pipeline and the second heat exchange pipeline are intersected and communicated at the intersected position, and the heat exchange medium conveyed by the first heat exchange pipeline and the heat exchange medium conveyed by the second heat exchange pipeline can be mixed at the intersected position, so that the dryness of the refrigerant between the first heat exchange pipeline and the second heat exchange pipeline is uniform, and the heat exchange performance of the heat exchanger can be improved.

Description

Fin, heat exchanger, indirect heating equipment and air conditioner

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a fin, a heat exchanger, heat exchange equipment and an air conditioner.

Background

In the related art, a plurality of fins of a heat exchanger are arranged at intervals along a first direction, and when an air flow passes through the plurality of fins along a second direction (the second direction is intersected with the first direction), the air flow exchanges heat with the plurality of fins, so that heat exchange is realized. The heat exchanger of the related art has a problem of low heat exchange performance.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a fin, aiming at improving the heat exchange performance of a heat exchanger.

In order to achieve the above object, the present invention provides a fin, including:

a first heat exchange tube located within the fin; and

a second heat exchange tube located within the fin;

the first heat exchange tubes and the second heat exchange tubes intersect and are in communication at the intersection, such that a heat exchange medium conveyed through the first heat exchange tubes and a heat exchange medium conveyed through the second heat exchange tubes can be mixed at the intersection.

In an embodiment, the second heat exchange tubes and the first heat exchange tubes intersect to form a first included angle opening towards the end of the fin, the first included angle being 60 ° to 120 °.

In an embodiment, the hydraulic diameter of the intersection is greater than the hydraulic diameter of the end of the first heat exchange tube and greater than the hydraulic diameter of the end of the second heat exchange tube.

In one embodiment, the fin has a windward side and a leeward side, the first heat exchange pipeline comprises a first windward section, a first connecting section and a first leeward section which are sequentially communicated, and the second heat exchange pipeline comprises a second windward section, a second connecting section and a second leeward section which are sequentially communicated;

in the direction from the windward side to the leeward side, the second windward sections and the first leeward sections are sequentially arranged at intervals and are correspondingly arranged, the first windward sections and the second leeward sections are sequentially arranged at intervals and are correspondingly arranged, and the first connecting sections and the second connecting sections are intersected and communicated at the intersected positions.

In an embodiment, the first windward section and the first leeward section are arranged in parallel at intervals, and the second windward section and the second leeward section are arranged in parallel at intervals.

In one embodiment, the length of the first windward section is 0.05-0.2 times the length of the first leeward section;

the length of the second leeward section is 0.05-0.2 times of the length of the second windward section.

In an embodiment, the hydraulic diameter of the first connection section is greater than the hydraulic diameter of the first windward section and greater than the hydraulic diameter of the first leeward section;

the hydraulic diameter of the second connecting section is larger than that of the second windward section and larger than that of the second leeward section.

In one embodiment, the hydraulic diameter at the intersection is greater than the hydraulic diameter of the end of the first connector segment and greater than the hydraulic diameter of the end of the second connector segment.

In one embodiment, the fin comprises a first sheet body and a second sheet body which are stacked in the thickness direction;

the first sheet body is provided with a first communicating groove and a second communicating groove which are intersected and communicated at the intersected positions, a first windward groove communicated with one end, close to the windward side, of the first communicating groove, and a second windward groove communicated with one end, close to the windward side, of the second communicating groove;

the second sheet body is provided with a third communicating groove and a fourth communicating groove which are intersected and communicated at the intersected positions, a first leeward groove communicated with one end of the third communicating groove far away from the windward side, and a second leeward groove communicated with one end of the fourth communicating groove far away from the windward side;

when the first sheet body and the second sheet body are arranged in a stacked mode, the first windward groove and the surface, facing the first sheet body, of the second sheet body enclose to form the first windward section, and the second windward groove and the surface, facing the first sheet body, of the second sheet body enclose to form the second windward section;

when the first sheet body and the second sheet body are arranged in a stacked mode, the first leeward groove and the surface, facing the second sheet body, of the first sheet body enclose to form the first leeward section, and the second leeward groove and the surface, facing the second sheet body, of the first sheet body enclose to form the second leeward section;

the first connecting groove and the third connecting groove are enclosed to form the first connecting section, and the second connecting groove and the fourth connecting groove are enclosed to form the second connecting section.

In one embodiment, the widths of the first and fourth communication grooves are gradually reduced in a flow direction of the heat exchange medium, and the widths of the second and third communication grooves are gradually reduced in a direction opposite to the flow direction of the heat exchange medium.

the first sheet body is provided with a first heat exchange groove and a second heat exchange groove which are intersected and communicated, the second sheet body is provided with a third heat exchange groove and a fourth heat exchange groove which are intersected and communicated, the first heat exchange groove and the third heat exchange groove are enclosed to form the first heat exchange pipeline, and the second heat exchange groove and the fourth heat exchange groove are enclosed to form the second heat exchange pipeline.

In one embodiment, the first blade has the same structure as the second blade.

In an embodiment, a plurality of heat exchange pipe sets are defined by one first heat exchange pipe and one second heat exchange pipe;

the fins are provided with windward sides and leeward sides, and a plurality of heat exchange pipeline groups are arranged at intervals in the direction from the windward sides to the leeward sides.

In one embodiment, the heat exchanger further comprises an inlet collecting channel positioned at one end of the fin and an outlet collecting channel positioned at the other end of the fin, one end of the first heat exchange pipe and one end of the second heat exchange pipe are respectively communicated with the inlet collecting channel, and the other end of the first heat exchange pipe and the other end of the second heat exchange pipe are respectively communicated with the outlet collecting channel;

the intersection is adjacent the inlet manifold channel.

The utility model also provides a heat exchanger which comprises a plurality of fins, wherein an airflow channel is formed between every two adjacent fins in the thickness direction of the fins.

In one embodiment, the heat exchanger is an evaporator.

The utility model also provides heat exchange equipment which is characterized by comprising the heat exchanger.

The utility model also provides an air conditioner which comprises the heat exchanger.

In the above heat exchanger, the fin includes a first heat exchange tube and a second heat exchange tube inside the fin. The first heat exchange pipeline and the second heat exchange pipeline are intersected and communicated at the intersected position, and the heat exchange medium conveyed by the first heat exchange pipeline and the heat exchange medium conveyed by the second heat exchange pipeline can be mixed at the intersected position, so that the dryness of the refrigerant between the first heat exchange pipeline and the second heat exchange pipeline is uniform, and the heat exchange performance of the heat exchanger can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic perspective exploded view of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an intersection of a first heat exchange channel and a second heat exchange channel of a fin of a heat exchanger according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a fin of the heat exchanger shown in FIG. 1;

FIG. 4 is a schematic perspective exploded view of a fin of the heat exchanger shown in FIG. 1;

FIG. 5 is a schematic view of the structure of FIG. 4 rotated 180 to the right;

FIG. 6 is a schematic view of the structure of FIG. 4 rotated 180 downward;

FIG. 7 is a top view of a fin of the heat exchanger shown in FIG. 1;

FIG. 8 is a schematic sectional view taken along line A-A of FIG. 7;

FIG. 9 is a schematic sectional view taken along line B-B in FIG. 7;

FIG. 10 is a schematic sectional view taken along line C-C of FIG. 7;

FIG. 11 is a schematic sectional view taken along line D-D in FIG. 7;

FIG. 12 is a schematic perspective view of a fin of a heat exchanger according to an embodiment of the present invention;

FIG. 13 is a schematic perspective exploded view of the fins of the heat exchanger shown in FIG. 12;

FIG. 14 is a schematic view of the structure of FIG. 13 rotated 180 to the right;

FIG. 15 is a schematic view of FIG. 13 rotated 180 downward;

FIG. 16 is a top view of a fin of the heat exchanger shown in FIG. 12;

FIG. 17 is a schematic sectional view taken along line E-E in FIG. 16;

FIG. 18 is a schematic sectional view taken along line F-F in FIG. 16;

FIG. 19 is a schematic sectional view taken along line G-G in FIG. 16;

FIG. 20 is a schematic sectional view taken along line H-H in FIG. 16;

fig. 21 is a perspective view schematically illustrating a fin of a heat exchanger according to the related art.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Heat exchanger	12	Fin
10a	Air flow channel	12a	Windward side
				12b	Leeward side	200	First heat exchange pipeline
300	Second heat exchange pipeline	210	First windward section
				220	First connecting section	230	First leeward section
310	Second windward section	320	Second connecting section
				330	Second leeward section	400	First sheet
500	Second sheet body	400a	First heat exchange groove
				500a	Second heat exchange tank	410	First windward groove
420	Second windward groove	430	First connecting groove
				440	Second communicating groove	510	First leeward groove
520	Second leeward groove	530	Third communicating groove
				540	The fourth communicating groove	400b	First heat exchange groove
400c	Second heat exchange tank	500b	Third heat exchange groove
				500c	Fourth heat exchange groove	600	Heat exchange pipeline group
700	Inlet manifold channel	800	Outlet flow collecting channel

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a heat exchanger.

In the embodiment of the present invention, as shown in fig. 1 and 2, the heat exchanger 10 includes a plurality of fins 12, and the plurality of fins 12 are arranged at intervals in the thickness direction of the heat exchanger 10, that is, the plurality of fins 12 are arranged at intervals in the thickness direction of the fins 12. An airflow passage 10a is formed between two adjacent fins 12. When the air flows through the air flow passage 10a, heat exchange is performed with the fins 12, thereby achieving heat exchange.

The fin 12 includes a first heat exchange tube 200 and a second heat exchange tube 300 located inside the fin 12. The first and second

heat exchange tubes

200 and 300 intersect and communicate at the intersection X, so that the heat exchange medium transferred through the first heat exchange tube 200 and the heat exchange medium transferred through the second heat exchange tube 300 can be mixed at the intersection X.

In the related art, as shown in fig. 21, the fin 14 of the heat exchanger includes a first heat exchange pipe 142 and a second heat exchange pipe 144 inside the fin 14. When the heat exchanger is used as an evaporator, a liquid heat exchange medium may be delivered to first heat exchange tubes 142 and second heat exchange tubes 144 through inlet manifold channels 146, may exchange heat with the gas stream, and may be discharged through outlet manifold channels 148. When the heat exchanger is used as a condenser, a gaseous heat exchange medium may be delivered through inlet manifold channels 146 into first heat exchange tubes 142 and second heat exchange tubes 144, exchange heat with the gas stream, and then discharged through outlet manifold channels 148. However, in practical applications, the refrigerant delivered into the first heat exchange tube 142 and the second heat exchange tube 144 through the inlet collecting flow channel 146 is not usually in a pure liquid state or a pure gas state, but in a gas-liquid two-phase state, and the gas-liquid two-phase ratio of the refrigerant in the first heat exchange tube 142 is different from the gas-liquid two-phase ratio of the refrigerant in the second heat exchange tube 144, for example, when the heat exchanger is used as an evaporator, the gaseous refrigerant ratio of the refrigerant in the first heat exchange tube 142 is greater than the gaseous refrigerant ratio of the refrigerant in the second heat exchange tube 144. That is, in the related art, the dryness of the refrigerant between the heat exchange pipes (the first heat exchange pipe 142 and the second heat exchange pipe 144) of the same fin 14 is not uniform, so that the heat exchanger has a problem of low heat exchange performance.

In the above-described heat exchanger 10, the fin 12 includes the first heat exchange tube 200 and the second heat exchange tube 300 inside the fin 12. The first heat exchange pipe 200 and the second heat exchange pipe 300 are intersected and communicated at an intersection X, and a heat exchange medium transmitted through the first heat exchange pipe 200 and a heat exchange medium transmitted through the second heat exchange pipe 300 can be mixed at the intersection X, so that the dryness of the refrigerant between the first heat exchange pipe 200 and the second heat exchange pipe 300 can be uniform, and the heat exchange performance of the heat exchanger 10 can be improved.

In the present embodiment, as shown in fig. 2 and 3, the first heat exchange tubes 200 and the first heat exchange tubes 300 intersect to form a first included angle α that opens toward the end of the fin 12. The first included angle alpha is 60-120 degrees. The first included angle α is too small to facilitate mixing of the heat exchange medium transferred through the first heat exchange pipe 200 and the heat exchange medium transferred through the second heat exchange pipe 300 at the intersection X, and the first included angle α is too large to result in too large a distance between the first heat exchange pipe 200 and the first heat exchange pipe 300 (i.e., the distance between the first windward section 210 and the second leeward section 320 and the distance between the second windward section 310 and the first leeward section 220 are both too large), and when the area is fixed, it is not convenient to set more number of the first heat exchange pipe 200 and the second heat exchange pipe 300. Combining the above factors, the first included angle alpha is set to be 60-120 degrees. Specifically, in the present embodiment, the first included angle α may be 60 °, 70 °, 80 °, 90 °, 100 °, 110 °, or 120 °.

In the present embodiment, the hydraulic diameter of the intersection X is greater than the hydraulic diameter of the end of the first heat exchange tube 200, and the hydraulic diameter of the intersection X is greater than the hydraulic diameter of the end of the second heat exchange tube 300. That is, the flow area of the intersection X is greater than the flow area of the end of the first heat exchange tube 200, and the flow area of the intersection X is greater than the flow area of the end of the second heat exchange tube 300.

Research shows that when the hydraulic diameter of the intersection X is too small, and the heat exchange medium transmitted through the first heat exchange pipe 200 and the heat exchange medium transmitted through the second heat exchange pipe 300 are mixed at the intersection X, the flow pressure loss of the heat exchange medium is large, which is not favorable for the heat exchange medium to flow rapidly, and may have a negative effect on the improvement of the heat exchange performance of the heat exchanger 10. In the heat exchanger 10, the hydraulic diameter of the intersection X is larger than that of the end of the first heat exchange pipe 200, and the hydraulic diameter of the intersection X is larger than that of the end of the second heat exchange pipe 300, so that the flow pressure loss of the heat exchange medium can be reduced, and the heat exchange performance of the heat exchanger 10 can be improved.

It should be noted that, in the present embodiment, the intersection X is located between both ends of the first heat exchange tube 200 and the second heat exchange tube 300. The hydraulic diameter of the intersection X being greater than the hydraulic diameter of the ends of the first heat exchange tubes 200 means that the hydraulic diameters of both ends of the first heat exchange tubes 200 are less than the hydraulic diameter of the intersection X. The hydraulic diameter of the intersection X being greater than the hydraulic diameter of the ends of the second heat exchange tubes 300 means that the hydraulic diameters of both ends of the second heat exchange tubes 300 are less than the hydraulic diameter of the intersection X.

In the present embodiment, as shown in fig. 1, the fin 12 has a windward side 12a and a leeward side 12b arranged in this order in the airflow direction. Note that, in the present embodiment, the airflow direction is the direction from the windward side 12a to the leeward side 12 b. When the fin 12 is applied to the heat exchanger 10 and the heat exchanger 10 is applied to a heat exchanging apparatus such as an air conditioner, the direction of the air flow is generally determined.

In the present embodiment, as shown in fig. 3, the first heat exchange pipe 200 includes a first windward section 210, a first connection section 220, and a first leeward section 230, which are sequentially communicated. The second heat exchange pipe 300 includes a second windward section 310, a second connection section 320, and a second leeward section 330, which are sequentially communicated. In the direction from the windward side 12a to the leeward side 12b, the second windward sections 310 and the first leeward sections 230 are sequentially arranged at intervals and are correspondingly arranged, that is, in the airflow direction, at least part of the second windward sections 310 are opposite to the first leeward sections 230, and the second windward sections 310 are closer to the windward side 12a than the first leeward sections 230. In the direction from the windward side 12a to the leeward side 12b, the first windward section 210 and the second leeward section 330 are sequentially arranged at intervals and are correspondingly arranged, that is, in the airflow direction, at least part of the first windward section 210 is opposite to the second leeward section 330, and the first windward section 210 and the second leeward section 330 are closer to the windward side 12 a. The first connecting section 220 intersects the second connecting section 320 and communicates at an intersection X.

Specifically, in the present embodiment, the second windward section 310 is substantially completely opposite to the first leeward section 230. It is understood that in other embodiments, at least 50% of the second windward section 310 may be opposite to the first leeward section 230 in the length direction.

Specifically, in the present embodiment, the first windward section 210 is substantially completely opposite to the second leeward section 330. It is understood that in other embodiments, at least 50% of the first windward section 210 may be opposite to the second leeward section 330 in the length direction.

In the above structure, the first heat exchange pipe 200 and the second heat exchange pipe 300 are both bent. When the area is fixed, first heat exchange pipeline 200 and second heat exchange pipeline 300 that all are the form of buckling for all being linear first heat exchange pipeline 200 and second heat exchange pipeline 300, do benefit to and set up more first heat exchange pipeline 200 and second heat exchange pipeline 300. It is understood that in other embodiments, the first heat exchange tube 200 and the second heat exchange tube 300 may be both linear.

In the present embodiment, the first windward section 210 and the first leeward section 230 are both substantially linear, and the first windward section 210 and the first leeward section 230 are arranged in parallel at intervals. Therefore, the flow resistance of the heat exchange medium flowing in the first windward section 210 and the first leeward section 230 can be reduced, and the heat exchange between the heat exchange medium and the airflow is facilitated.

In this embodiment, the second windward section 310 and the second leeward section 330 are both substantially linear, and the second windward section 310 and the second leeward section 330 are arranged in parallel at intervals. Therefore, the flow resistance of the heat exchange medium flowing in the second windward section 310 and the second leeward section 330 can be reduced, and the heat exchange between the heat exchange medium and the airflow is facilitated.

In the present embodiment, the hydraulic diameter of the first connection section 220 is greater than the hydraulic diameter of the first windward section 210, and the hydraulic diameter of the first connection section 220 is greater than the hydraulic diameter of the first leeward section 230. In this way, it is very convenient to achieve that the hydraulic diameter of the intersection X is larger than the hydraulic diameter of the end of the first heat exchange tube 200. The hydraulic diameter of the second connecting section 320 is greater than the hydraulic diameter of the second windward section 310 and greater than the hydraulic diameter of the second leeward section 330. In this way, it is very convenient to achieve that the hydraulic diameter of the intersection X is larger than the hydraulic diameter of the end of the second heat exchange tube 300.

In the present embodiment, as shown in fig. 4 to 11, the fin 12 includes a first blade 400 and a second blade 500 stacked in the thickness direction. The first sheet 400 is provided with a first heat exchange groove 400 a. The second plate 500 is provided with a second heat exchanging groove 500 a. A portion of the first heat exchanging groove 400a and a surface of the second plate body 500 facing the first plate body 400 are enclosed to form a first windward section 210 and a second windward section 310, a portion of the second heat exchanging groove 500a and a surface of the first plate body 400 facing the second plate body 500 are enclosed to form a first leeward section 230 and a second leeward section 330, a portion of the first heat exchanging groove 400a and a portion of the second heat exchanging groove 500a are enclosed to form a first connecting section 220, and a portion of the first heat exchanging groove 400a and a portion of the second heat exchanging groove 500a are enclosed to form a second connecting section 320. That is, in the present embodiment, the first windward section 210, the first leeward section 230, the second windward section 310 and the second leeward section 330 are formed by the grooves on one sheet and the surface of the other sheet enclosing, and the first connecting section 220 and the second connecting section 320 are formed by the grooves on one sheet and the grooves on the other sheet enclosing, so that it is very convenient to achieve that the hydraulic diameter of the first connecting section 220 is larger than that of the first windward section 210, and the hydraulic diameter of the first connecting section 220 is larger than that of the first leeward section 230, and it is very convenient to achieve that the hydraulic diameter of the second connecting section 320 is larger than that of the second windward section 310 and is larger than that of the second leeward section 330.

Specifically, in the present embodiment, the first sheet 400 is provided with a first windward groove 410, a second windward groove 420, a first connecting groove 430 and a second connecting groove 440. The first communicating groove 430 and the second communicating groove 440 intersect and communicate at an intersection X1. The first windward groove 410 communicates with one end of the first communicating groove 430 near the windward side 12 a. The second windward groove 420 communicates with one end of the second communication groove 440 near the windward side 12 a.

The second plate 500 has a first leeward groove 510, a second leeward groove 520, a third communicating groove 530 and a fourth communicating groove 540. The third communicating groove 530 and the fourth communicating groove 540 intersect and communicate at an intersection X2. The first leeward groove 510 communicates with one end of the third communication groove 530 away from the windward side 12 a. The second leeward groove 520 communicates with one end of the fourth communication groove 540 away from the windward side 12 a.

The first windward groove 410 and the surface of the second blade 500 facing the first blade 400 enclose a first windward section 210. The first leeward trough 510 encloses with the surface of the first panel 400 facing the second panel 500 to form a first leeward section 230. The first connecting groove 430 and the third connecting groove 530 enclose to form the first connecting section 220. The second windward groove 420 and the surface of the second sheet body 500 facing the first sheet body 400 are enclosed to form a second windward section 310, the second leeward groove 520 and the surface of the first sheet body 400 facing the second sheet body 500 are enclosed to form a second leeward section 330, and the second communicating groove 440 and the fourth communicating groove 540 are enclosed to form a second connecting section 320.

In the above structure, the first windward groove 410 of the first windward section 210 of the first heat exchange channel 200 is located on the first sheet 400, and the first leeward groove 510 of the first leeward section 230 of the first heat exchange channel 200 is located on the second sheet 500, so that there is a height difference between the first windward section 210 and the first leeward section 230 of the first heat exchange channel 200, and thus it is more convenient for the heat exchange medium in the first heat exchange channel 200 and the heat exchange medium in the second heat exchange channel transport 300 to mix at the intersection X.

Similarly, the second windward groove 420 of the second windward section 310 of the second heat exchange channel 300 is located on the first sheet 400, and the second leeward groove 520 of the second leeward section 330 of the second heat exchange channel 300 is located on the second sheet 500, so that a height difference exists between the second windward section 310 and the second leeward section 330 of the second heat exchange channel 300, and thus, the heat exchange medium in the first heat exchange pipe 200 and the heat exchange medium in the second heat exchange pipe conveyor 300 can be mixed at the intersection X.

In the present embodiment, it may be considered that the first heat exchange groove 400a includes a first windward groove 410, a second windward groove 420, a first communication groove 430, and a second communication groove 440, and the second heat exchange groove 400 includes a first leeward groove 510, a second leeward groove 520, a third communication groove 530, and a fourth communication groove 540.

In the present embodiment, the first windward groove 410, the second windward groove 420, the first communicating groove 430 and the second communicating groove 440 are formed by a stamping process, and a convex mark is formed on the surface of the first sheet 400 away from the second sheet 500. In this embodiment, the first windward groove 410 and the second windward groove 420 are formed on the first sheet 400, and the corresponding first windward groove 410 and second windward groove 420 are not formed on the second sheet 500, so that the surface of the first sheet 400 away from the second sheet 500 does not have a convex mark formed at the position corresponding to the first windward groove 410 and the second windward groove 420 on the first sheet 400.

In the embodiment, the first leeward groove 510, the second leeward groove 520, the third communicating groove 530 and the fourth communicating groove 540 are formed by a stamping process, and convex marks are formed on the surface of the second sheet body 500 away from the first sheet body 400. In this embodiment, first leeward groove 510 and second leeward groove 520 are formed in second blade 500 without forming corresponding first leeward groove 510 and second leeward groove 520 in first blade 400, such that the surface of second blade 500 away from first blade 400 does not have raised marks formed at locations corresponding to first leeward groove 510 and second leeward groove 520 in second blade 500.

In the present embodiment, the first sheet 400 and the second sheet 500 are both aluminum sheets. After the first sheet 400 and the second sheet 500 are subjected to the stamping step, the first sheet 400 and the second sheet 500 are connected together by welding, so as to form the first heat exchange pipe 200 and the second heat exchange pipe 300.

In this embodiment, the first windward groove 410 and the second windward groove 420 are both substantially linear, and the first windward groove 410 is located on an extension line of the second windward groove 420, that is, the first windward groove 410 and the second windward groove 420 are collinear. The first leeward groove 510 and the second leeward groove 520 are both substantially linear, and the first leeward groove 510 is located on an extension line of the second leeward groove 520, that is, the first leeward groove 510 and the second leeward groove 520 are collinear. The second included angle formed by the first windward groove 410 and the first connecting groove 430 is the same as the third included angle formed by the second leeward groove 520 and the fourth connecting groove 540. A fourth included angle formed by the second windward groove 420 and the second communicating groove 440 is the same as a fifth included angle formed by the first leeward groove 510 and the third communicating groove 530. In this manner, the first sheet 400 and the second sheet 500 can be made structurally identical, thereby making it easier to make the fins 12. Taking the viewing angles shown in fig. 4 and 6 as an example, after rotating fig. 4 downward by 180 °, fig. 6 can be obtained, in which the structure of the second panel 500 in fig. 6 is identical to the structure of the first panel 400 in fig. 4.

In the present embodiment, a second included angle formed by the first windward groove 410 and the first connecting groove 430, a third included angle formed by the second leeward groove 520 and the fourth connecting groove 540 are the same, a fourth included angle formed by the second windward groove 420 and the second connecting groove 440, and a fifth included angle formed by the first leeward groove 510 and the third connecting groove 530 are the same. In this manner, the fabrication of the fin 12 is facilitated.

In this embodiment, the hydraulic diameter of the intersection X is greater than the hydraulic diameter of the end of the first connector segment 220 and greater than the hydraulic diameter of the end of the second connector segment 320. Thus, the flow pressure loss of the heat exchange medium can be further reduced, and the heat exchange performance of the heat exchanger 10 can be further improved.

It should be noted that, in the present embodiment, the intersection X is located between both ends of the first connecting section 220 and the second connecting section 320. The hydraulic diameter of the intersection X being greater than the hydraulic diameter of the ends of the first connecting section 220 means that the hydraulic diameters of both ends of the first connecting section 220 are less than the hydraulic diameter of the intersection X. The hydraulic diameter of the intersection X being greater than the hydraulic diameter of the ends of the second connecting section 320 means that the hydraulic diameters of both ends of the second connecting section 320 are less than the hydraulic diameter of the intersection X.

In the present embodiment, the width of the first communicating groove 430 gradually decreases in the extending direction of the first windward groove 410 to the first communicating groove 430, the width of the second communicating groove 440 gradually decreases in the extending direction of the second windward groove 420 to the second communicating groove 440, while the width of the third communicating groove 530 gradually decreases in the extending direction of the first leeward groove 510 to the third communicating groove 530, and the width of the fourth communicating groove 540 gradually decreases in the extending direction of the second leeward groove 520 to the fourth communicating groove 540. That is, the widths of the first and

fourth communication grooves

430 and 540 are gradually reduced in the flow direction of the heat exchange medium, and the widths of the second and

third communication grooves

440 and 530 are gradually reduced in the opposite direction to the flow direction of the heat exchange medium. In this manner, it is highly convenient to achieve a hydraulic diameter at the intersection X that is greater than the hydraulic diameter of the ends of the first connector segment 220 and greater than the hydraulic diameter of the ends of the second connector segment 320, for example, such that the intersection X is located in the middle of both the first connector segment 220 and the second connector segment 320.

In some embodiments, when the fin 12 is manufactured, the intersection X1 of the first connecting groove 430 and the second connecting groove 440 and/or the intersection X2 of the third connecting groove 530 and the fourth connecting groove 540 may be deepened by means of stamping, so that the hydraulic diameter of the intersection X of the first connecting section 220 and the second connecting section 320 is greater than the hydraulic diameter of the end of the first connecting section 220 and greater than the hydraulic diameter of the end of the second connecting section 320.

In some embodiments, as shown in fig. 12-20, the fin 12 includes a first fin 400 and a second fin 500 stacked in a thickness direction. The first sheet 400 is provided with a first heat exchange groove 400b and a second heat exchange groove 400c which are intersected and communicated at an intersection X. The second plate 500 is provided with a third heat exchange groove 500b and a fourth heat exchange groove 500c which are intersected and communicated at the intersection X. The first heat exchange groove 400b and the third heat exchange groove 500b enclose to form the first heat exchange pipe 200. The second heat exchange groove 400c and the fourth heat exchange groove 500c enclose to form the second heat exchange pipe 300.

Specifically, in the present embodiment, the first heat exchange slot 400b includes a first windward portion 452, a first connection portion 454, and a first leeward portion 456 which are sequentially communicated. The second heat exchange slot 400c includes a second windward portion 462, a second connection portion 464, and a second leeward portion 466, which are sequentially communicated. In the direction from the windward side 12a to the leeward side 12b, the first windward portion 452 and the second leeward portion 466 are sequentially arranged at intervals and are correspondingly disposed, the second windward portion 462 and the first leeward portion 456 are sequentially arranged at intervals and are correspondingly disposed, and the second connection portion 464 intersects with the first connection portion 454 and is communicated with the intersection X1.

The third heat exchange groove 500b includes a third windward portion 552, a third connection portion 554, and a third leeward portion 556, which are sequentially communicated. The fourth heat exchange groove 500c includes a fourth windward portion 562, a fourth connection portion 564, and a fourth leeward portion 566, which are sequentially communicated. In the direction from the windward side 12a to the leeward side 12b, the third windward portion 552 and the fourth leeward portion 566 are sequentially arranged at intervals and are correspondingly arranged, the fourth windward portion 562 and the third leeward portion 556 are sequentially arranged at intervals and are correspondingly arranged, and the fourth connecting portion 564 intersects with the third connecting portion 554 and is communicated with the intersecting portion X2.

The first windward portion 452 and the third windward portion 552 enclose to form a first windward section 210, the first connecting portion 454 and the third connecting portion 554 enclose to form a first connecting section 220, and the first leeward portion 456 and the third leeward portion 556 enclose to form a first leeward section 230.

The second windward part 462 and the fourth windward part 562 enclose to form a second windward section 310, the second connecting part 464 and the fourth connecting part 564 enclose to form a second connecting section 320, and the second leeward part 466 and the fourth leeward part 566 enclose to form a second leeward section 330.

That is, in the embodiment shown in fig. 12-20, the first windward section 210, the first connecting section 220, the first leeward section 230, the second windward section 310, the second connecting section 320 and the second leeward section 330 are all formed by the grooves of one sheet body and the grooves of the other sheet body enclosing each other. In this manner, the fabrication of the fin 12 is greatly facilitated. In the manufacturing of the fin 12 in the embodiment shown in fig. 12 to 20, the intersection X1 of the first connection portion 454 and the second connection portion 464 and/or the intersection X2 of the third connection portion 554 and the fourth connection portion 564 may be deepened by means of stamping, so that the hydraulic diameter of the intersection X of the first connection section 220 and the second connection section 320 is greater than the hydraulic diameter of the end of the first connection section 220 and greater than the hydraulic diameter of the end of the second connection section 320, and the hydraulic diameter of the intersection X of the first connection section 220 and the second connection section 320 is greater than the hydraulic diameter of the end of the first heat exchange tube 200 and greater than the hydraulic diameter of the end of the second heat exchange tube 300.

In the present embodiment, a fifth angle formed by the first windward portion 452 and the first connection portion 454 is the same as a sixth angle formed by the fourth leeward portion 566 and the fourth connection portion 564, and a seventh angle formed by the first leeward portion 456 and the first connection portion 454 is the same as an eighth angle formed by the fourth windward portion 562 and the fourth connection portion 564. A ninth angle formed by the second windward portion 462 and the second connection portion 464 is the same as a tenth angle formed by the third leeward portion 556 and the third connection portion 554, and an eleventh angle formed by the second leeward portion 466 and the second connection portion 464 is the same as a twelfth angle formed by the third windward portion 552 and the third connection portion 554. In this manner, the first sheet 400 and the second sheet 500 can be made structurally identical, thereby making it easier to make the fins 12. Taking the perspective shown in fig. 13 and 15 as an example, after rotating fig. 13 downward 180 °, fig. 15 can be obtained, in which the structure of the second panel 500 in fig. 15 is identical to the structure of the first panel 400 in fig. 13.

Specifically, in the present embodiment, a fifth included angle formed by the first windward portion 452 and the first connection portion 454, a sixth included angle formed by the fourth leeward portion 566 and the fourth connection portion 564, a seventh included angle formed by the first leeward portion 456 and the first connection portion 454, an eighth clip formed by the fourth windward portion 562 and the fourth connection portion 564, a ninth included angle formed by the second windward portion 462 and the second connection portion 464, a tenth included angle formed by the third leeward portion 556 and the third connection portion 554, an eleventh included angle formed by the second leeward portion 466 and the second connection portion 464, and a twelfth included angle formed by the third windward portion 552 and the third connection portion 554 are all the same.

In the present embodiment, as shown in fig. 3, a first heat exchange tube 200 and a second heat exchange tube 300 define a heat exchange tube set 600. The heat exchange tube bank 600 is plural. In the direction from the windward side 12a to the leeward side 12b, a plurality of heat exchange tube groups 600 are arranged at intervals. That is, in the present embodiment, each of the first heat exchange tubes 200 and the second heat exchange tubes 300 is plural, so that the fin 12 can have high heat exchange efficiency. Specifically, in the present embodiment, there are two heat exchange tube groups 600. It is understood that in other embodiments, heat exchange tube set 600 may be one, three, or more.

In this embodiment, as shown in fig. 1-20, the fin 12 further includes an inlet collection channel 700 and an outlet collection channel 800. The inlet collecting channel 700 is located at one end of the fin 12 and the outlet collecting channel 800 is located at the other end of the fin 12. One end of the first heat exchange tube 200 and one end of the second heat exchange tube 300 are respectively communicated with the inlet collecting channel 700, and the other end of the first heat exchange tube 200 and the other end of the second heat exchange tube 300 are respectively communicated with the outlet collecting channel 800. Specifically, in the present embodiment, both the first windward section 210 and the second leeward section 330 communicate 700 with the inlet collecting channel. The second windward section 310 and the first leeward section 230 are both in communication with the outlet collecting channel 800.

In this embodiment, the intersection X is adjacent the inlet collection channel 700. Thus, the heat exchange medium transferred through the first heat exchange pipeline 200 and the heat exchange medium transferred through the second heat exchange pipeline 300 can be mixed at the inlet collecting channel 700, so that the uniformity of the dryness of the refrigerant between the first heat exchange pipeline 200 and the second heat exchange pipeline 300 is more facilitated, and the heat exchange performance of the heat exchanger 10 is further improved.

In the present embodiment, the length of the first windward section 210 is 0.05-0.2 times the length of the first leeward section 230. Specifically, in the present embodiment, the length of the first windward section 210 may be 0.05 times, 0.06 times, 0.08 times, 0.1 times, 0.12 times, 0.14 times, 0.16 times, 0.18 times, or 0.2 times the length of the first leeward section 230.

The length of the second leeward section 330 is 0.05-0.2 times the length of the second windward section 310. Specifically, in the present embodiment, the length of the second leeward section 330 is 0.05 times, 0.06 times, 0.08 times, 0.1 times, 0.12 times, 0.14 times, 0.16 times, 0.18 times, or 0.2 times the length of the second windward section 310.

In the present embodiment, the heat exchanger 10 includes a plurality of fins 12, and the plurality of fins 12 are arranged at intervals in the thickness direction of the heat exchanger 10. The first sheet 400 and the second sheet 500 of the plurality of fins 12 are arranged in a staggered manner in the thickness direction of the heat exchanger 10.

In the present embodiment, the adjacent inlet collecting channels 700 communicate in the thickness direction, and the adjacent outlet collecting channels 800 communicate in the thickness direction. In this way, the heat exchange medium may be delivered to the first heat exchange tubes 200 and the second heat exchange tubes 300 of the fins 12 through the inlet collecting channels 700, and after exchanging heat with the air flow, the heat exchange medium may be discharged into the outlet collecting channels 800.

In this embodiment, the inlet collecting channel 700 includes a first inlet portion 710 and a second inlet portion 720. The first sheet 400 defines a first inlet mounting hole 402. The first inlet 710 is disposed through the first inlet mounting hole 402, and one end of the first inlet 710 is flush with the surface of the first blade 400 close to the second blade 500, and the other end of the first inlet 710 protrudes out of the surface of the first blade 400 far from the second blade 500. The second plate 500 defines a second inlet mounting hole 502. The second inlet portion 720 is disposed through the second inlet mounting hole 502, and one end of the second inlet portion 720 is flush with the surface of the second blade 500 close to the first blade 400, and the other end of the second inlet portion 720 protrudes out of the surface of the second blade 500 far from the first blade 400.

The outlet collecting channel 800 includes a first outlet 810 and a second outlet 820. The first sheet 400 defines a first outlet mounting hole 404. The first outlet 810 is disposed through the first outlet mounting hole 404, and one end of the first outlet 810 is flush with the surface of the first sheet 400 close to the second sheet 500, and the other end protrudes out of the surface of the first sheet 400 far from the second sheet 500. The second blade 500 defines a second outlet mounting hole 504. The second outlet 820 is disposed through the second outlet mounting hole 504, and one end of the second outlet 820 is flush with the surface of the second sheet 500 close to the first sheet 400, and the other end protrudes out of the surface of the second sheet 500 far from the first sheet 400.

In two adjacent fins 12, the end surface of the first inlet portion 710 of one fin 12 and the end surface of the second inlet portion 720 of the other fin 12 are bonded and welded, and the end surface of the first outlet portion 810 of the one fin 12 and the end surface of the second outlet portion 820 of the fin 12 are bonded and welded. As such, the dimension of the airflow passage 14 in the thickness direction of the fin 12 is determined by the dimension of the first inlet portion 710 projecting out of the surface of the first blade 400 away from the second blade 500 and the dimension of the second inlet portion 720 projecting out of the surface of the second blade 500 away from the first blade 400.

In this embodiment, the first inlet pipe with one end closed and one end open is formed by punching the surface of the first sheet 400 close to the second sheet 500, and at this time, the first inlet pipe is considered to be disposed through the first inlet mounting hole 402, and the open end of the first inlet pipe is flush with the surface of the first sheet 400 close to the second sheet 500, and the closed end of the first inlet pipe protrudes out of the surface of the first sheet 400 far from the second sheet 500, and the end plate of the closed end of the first inlet pipe is removed, so that the first inlet 710 is obtained.

Similarly, the surface of the first sheet 400 close to the second sheet 500 is punched to form a first outlet pipe with one closed end and one open end, and at this time, the first outlet pipe is considered to be arranged on the first outlet mounting hole 404 in a penetrating manner, and the open end of the first outlet pipe is flush with the surface of the first sheet 400 close to the second sheet 500, and the closed end of the first outlet pipe protrudes out of the surface of the first sheet 400 far from the second sheet 500, and the end plate of the closed end of the first outlet pipe is removed, so that the first outlet part 810 can be obtained.

Similarly, the second inlet pipe with one end closed and one end open is formed by stamping the surface of the second sheet body 500 close to the first sheet body 400, at this time, the second inlet pipe can be considered to be arranged on the second inlet mounting hole 502 in a penetrating manner, the open end of the second inlet pipe is flush with the surface of the second sheet body 500 close to the first sheet body 400, the closed end of the second inlet pipe protrudes out of the surface of the second sheet body 500 far away from the first sheet body 400, the end plate of the closed end of the second inlet pipe is removed, and the second inlet portion 720 can be obtained.

Similarly, the second outlet pipe with one end closed and the other end open is formed by punching the surface of the second sheet 500 close to the first sheet 400, and at this time, the second outlet pipe is considered to be arranged on the second outlet mounting hole 504 in a penetrating manner, and the open end of the second outlet pipe is flush with the surface of the second sheet 500 close to the first sheet 400, and the closed end of the second outlet pipe protrudes out of the surface of the second sheet 500 far away from the first sheet 400, and the end plate of the closed end of the second outlet pipe is removed, so that the second outlet 820 is obtained.

The utility model further provides a heat exchange device, which includes the heat exchanger 10, and the specific structure of the heat exchanger 10 refers to the above embodiments, and since the heat exchange device adopts all technical solutions of all the above embodiments, the heat exchange device at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The heat exchange equipment can be a refrigerator, a dehumidifier, an air conditioner indoor unit, an air conditioner outdoor unit and the like.

The utility model further provides an air conditioner, which includes the heat exchanger 10, and the specific structure of the heat exchanger 10 refers to the above embodiments, and since the air conditioner adopts all technical solutions of all the above embodiments, the air conditioner at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The air conditioner can be an integral air conditioner, a split air conditioner or other types of air conditioners. The heat exchanger 10 may function as an evaporator or as a condenser.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A fin, comprising:

a first heat exchange tube located within the fin; and

a second heat exchange tube located within the fin;

2. The fin according to claim 1, wherein the first heat exchange tubes and the second heat exchange tubes intersect to form a first included angle opening toward an end of the fin, the first included angle being 60 ° to 120 °.

3. The fin of claim 1, wherein the hydraulic diameter at the intersection is greater than the hydraulic diameter of the end of the first heat exchange tube and greater than the hydraulic diameter of the end of the second heat exchange tube.

4. The fin as claimed in claim 1, wherein the fin has a windward side and a leeward side, the first heat exchange tube includes a first windward section, a first connection section and a first leeward section which are sequentially communicated, and the second heat exchange tube includes a second windward section, a second connection section and a second leeward section which are sequentially communicated;

5. The fin of claim 4, wherein the first windward section and the first leeward section are spaced apart in parallel, and the second windward section and the second leeward section are spaced apart in parallel.

6. The fin of claim 4, wherein the length of the first windward section is 0.05-0.2 times the length of the first leeward section;

7. The fin of claim 4, wherein the hydraulic diameter of the first connection section is greater than the hydraulic diameter of the first windward section and greater than the hydraulic diameter of the first leeward section;

8. The fin of claim 7, wherein the hydraulic diameter at the intersection is greater than the hydraulic diameter of the end of the first connecting segment and greater than the hydraulic diameter of the end of the second connecting segment.

9. The fin according to claim 7, wherein the fin includes a first fin body and a second fin body which are stacked in a thickness direction;

10. The fin according to claim 9, wherein the widths of the first communicating groove and the fourth communicating groove are gradually decreased, and the widths of the second communicating groove and the third communicating groove are gradually increased in the flow direction of the heat exchange medium.

11. The fin according to claim 4, wherein the fin includes a first fin body and a second fin body which are stacked in a thickness direction;

12. The fin according to any one of claims 9 to 11, wherein the first lobe has a structure that is the same as the structure of the second lobe.

13. The fin according to claim 1, wherein one of said first heat exchange tubes and one of said second heat exchange tubes define a plurality of heat exchange tube groups;

14. The fin as recited in claim 1 further comprising an inlet manifold channel at one end of the fin and an outlet manifold channel at the other end of the fin, one end of said first heat exchange tube and one end of said second heat exchange tube being in communication with said inlet manifold channel, respectively, the other end of said first heat exchange tube and the other end of said second heat exchange tube being in communication with said outlet manifold channel, respectively;

the intersection is adjacent the inlet manifold channel.

15. A heat exchanger comprising a plurality of fins as recited in any one of claims 1 to 14, wherein an air flow passage is formed between adjacent two of said fins in a thickness direction of said fins.

16. A heat exchange apparatus comprising the heat exchanger of claim 15.

17. An air conditioner comprising the heat exchanger of claim 15.