CN216745669U

CN216745669U - Fin structure and heat exchanger

Info

Publication number: CN216745669U
Application number: CN202123127276.0U
Authority: CN
Inventors: 王冠军
Original assignee: Zhejiang Dunan Thermal Technology Co Ltd
Current assignee: Zhejiang Dunan Thermal Technology Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-06-14
Anticipated expiration: 2031-12-09

Abstract

The utility model provides a fin structure and heat exchanger, include: the radiating fin is provided with a first side edge, a second side edge, a first end and a second end, wherein the first side edge and the second side edge are arranged oppositely, the first end and the second end are positioned between the first side edge and the second side edge, and the first end and the second end are arranged oppositely; wherein the first end is provided with a first gap or a first gap extending to the edge of the first end; the second end has a second notch or a second gap extending to the edge of the second end. Adopt this scheme, through be provided with first breach or the first gap that extends to first end border at first end, the second end is provided with second breach or the second gap that extends to second end border, so set up, when bending, first end and second end are stretched or contract easily, can expand or contract along with the direction of bending, can not make the fin receive great pulling force and make the inside of fin produce abnormal deformation, thereby avoided influencing product quality and heat transfer effect because of warping.

Description

Fin structure and heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field particularly, relates to a fin structure and heat exchanger.

Background

At present, the technical scheme mainly adopted by the microchannel bending heat exchanger is single-row (single-layer) and then bending, but in the prior art, a finned tube with reduced width is usually adopted at a bending section and then bending forming is carried out, and although the bending deformation of the outer side is smaller after bending, the abnormal deformation of fins still exists in the inner part, so that the quality of the heat exchanger is reduced; in addition, the use of reduced width fins also affects heat exchange performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fin structure and heat exchanger to solve the problem of fin structure among the prior art easy abnormal deformation when bending.

In order to solve the above problem, according to an aspect of the present invention, the present invention provides a fin structure, including: the radiating fin is provided with a first side edge, a second side edge, a first end and a second end, wherein the first side edge and the second side edge are arranged oppositely, the first end and the second end are positioned between the first side edge and the second side edge, and the first end and the second end are arranged oppositely; wherein the first end is provided with a first gap or a first gap extending to the edge of the first end; the second end is provided with a second notch or a second gap extending to the edge of the second end.

Further, the first side edge and the second side edge are arranged in parallel, in the direction of the first side edge, the length of the radiating fin is 2L, the length of the first gap or the first gap is S1, and the length of the second gap or the second gap is S2, wherein S1 is less than L, and S2 is less than L.

Furthermore, the first end is provided with a first notch, the second end is provided with a second notch, and the shape and the size of the first notch and the size of the second notch are the same.

Further, the first end is provided with a first gap, the second end is provided with a second gap, and the shape and the size of the first gap and the second gap are the same.

Further, the first notch is a wedge-shaped notch, and/or the second notch is a wedge-shaped notch.

Further, the first notch is a rectangular notch, and/or the second notch is a rectangular notch.

Further, first breach has first border, second border, third border and the fourth border that connects gradually, and wherein, first border and fourth border extend to the border of first end, and first border and fourth border parallel arrangement all have the contained angle between second border and first border, the third border, have the contained angle between the third border and the fourth border.

Further, a part of the structure on the heat sink is formed into a plurality of punched sheets by punching, each punched sheet corresponds to one punched hole, the plurality of punched sheets are located between the first gap and the second gap, or the plurality of punched sheets are located between the first gap and the second gap.

Further, the fin structure includes a plurality of fin that connect gradually, and the first side of a fin is connected with the second side of adjacent fin, and a plurality of fin are the wave setting.

According to the utility model discloses an on the other hand provides a heat exchanger, and the heat exchanger includes flat pipe and the foretell fin structure that a plurality of ranges set up, all is provided with the fin structure between two adjacent flat pipes, wherein, the length direction of the flat pipe of extending direction perpendicular to in the first breach or the first gap of fin structure, the length direction of the flat pipe of extending direction perpendicular to in the second breach or the second gap of fin structure.

Use the technical scheme of the utility model, a fin structure is provided, include: the radiating fin is provided with a first side edge, a second side edge, a first end and a second end, wherein the first side edge and the second side edge are arranged oppositely, the first end and the second end are positioned between the first side edge and the second side edge, and the first end and the second end are arranged oppositely; wherein the first end is provided with a first gap or a first gap extending to the edge of the first end; the second end has a second notch or a second gap extending to the edge of the second end. By adopting the scheme, the first notch or the first gap extending to the edge of the first end is arranged at the first end, and the second notch or the second gap extending to the edge of the second end is arranged at the second end, so that when the heat exchanger is bent, the first end and the second end are easily stretched or shrunk, the opening of the first notch or the first gap is expanded, the opening of the second notch or the second gap is shrunk, or the opening of the first notch or the first gap is shrunk, and the opening of the second notch or the second gap is expanded, namely, the heat exchanger can be expanded or shrunk along with the bending direction, the heat exchanger cannot be abnormally deformed due to larger tension applied to the heat radiating fin, and the influence on the quality and the heat exchange effect of the heat exchanger due to the deformation of the heat radiating fin is avoided; moreover, according to the technical scheme, air resistance can be reduced under the condition that the heat exchange effect is not influenced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a fin structure according to an embodiment of the present invention;

FIG. 2 shows a schematic view of the heat sink of FIG. 1;

fig. 3 is a schematic view of a heat sink of a fin structure according to a second embodiment of the present invention;

fig. 4 shows a schematic view of a heat sink of a fin structure according to a third embodiment of the present invention;

fig. 5 is a schematic view of a heat sink of a fin structure according to a fourth embodiment of the present invention;

fig. 6 shows a schematic diagram of a heat exchanger provided in the fifth embodiment of the present invention;

FIG. 7 shows a schematic view of the heat exchanger of FIG. 6 in another position;

fig. 8 shows a schematic diagram of a heat exchanger according to a sixth embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a heat sink; 11. a first side edge; 12. a second side edge; 13. a first end; 131. a first notch; 1311. a first edge; 1312. a second edge; 1313. a third edge; 1314. a fourth edge; 132. a first slit; 14. a second end; 141. a second notch; 142. a second slit; 15. punching a sheet;

20. and (4) flat tubes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 2, a first embodiment of the present invention provides a fin structure, including: the heat dissipation plate 10 is provided with a first side 11, a second side 12, a first end 13 and a second end 14, wherein the first side 11 and the second side 12 are oppositely arranged, the first end 13 and the second end 14 are positioned between the first side 11 and the second side 12, and the first end 13 and the second end 14 are oppositely arranged; wherein, the first end 13 has a first gap 131 or a first gap 132 extending to the edge of the first end 13; the second end 14 has a second notch 141 or second slit 142 extending to the edge of the second end 14.

By adopting the scheme, the first end 13 is provided with the first notch 131 or the first gap 132 extending to the edge of the first end 13, and the second end 14 is provided with the second notch 141 or the second gap 142 extending to the edge of the second end 14, so that when the heat sink is bent, the first end 13 and the second end 14 are easily stretched or contracted, the opening of the first notch 131 or the first gap 132 is expanded, the opening of the second notch 141 or the second gap 142 is contracted, or the opening of the first notch 131 or the first gap 132 is contracted, and the opening of the second notch 141 or the second gap 142 is expanded, namely, the heat sink can be expanded or contracted along with the bending direction, and the heat sink 10 cannot be deformed abnormally due to larger tension, so that the heat exchange effect is prevented from being influenced due to the deformation of the heat sink; and, technical scheme in this scheme can also reduce air resistance under the condition that does not influence the heat transfer effect.

The first side 11 and the second side 12 are disposed in parallel, and in the direction of the first side 11, the length of the heat sink 10 is 2L, the length of the first notch 131 or the first gap 132 is S1, and the length of the second notch 141 or the second gap 142 is S2, where S1 is less than L, and S2 is less than L. By limiting the size of the length S1 of the first notch 131 or the first slit 132 and the length 2L of the heat sink 10 to the above range, and limiting the size of the length S2 of the second notch 141 or the second slit 142 and the length 2L of the heat sink 10 to the above range, it is ensured that the heat sink 10 is not completely broken, thereby enabling the heat sink 10 to be normally used.

In this embodiment, the first end 13 has a first notch 131, the second end 14 has a second notch 141, and the first notch 131 and the second notch 141 have the same shape and size. The shape and the size of the first notch 131 and the second notch 141 are the same, when the heat exchanger is bent, the first notch 131 is enlarged, and at the moment, the second notch 141 is extruded, so that the deformation of the first notch 131 and the deformation of the second notch 141 are consistent, the internal deformation of the heat radiating fin 10 caused by the difference of the deformation of the first notch 131 and the deformation of the second notch 141 is avoided, and the heat exchange effect is affected.

Alternatively, the first end 13 has a first slit 132 and the second end 14 has a second slit 142, and the first slit 132 and the second slit 142 are the same in shape and size. The first gap 132 and the second gap 142 are arranged in the same shape and size, when the heat sink is bent, the first gap 132 is enlarged, and at the moment, the second gap 142 is squeezed, so that the deformation of the first gap 132 and the deformation of the second gap 142 are consistent, and the internal deformation of the heat sink 10 caused by the difference of the deformation of the first gap 132 and the deformation of the second gap 142 is avoided, thereby affecting the heat exchange effect.

As shown in fig. 3, in the second embodiment of the present invention, the first end 13 has a first notch 131 extending to the edge of the first end 13, the second end 14 has a second notch 141 extending to the edge of the second end 14, and the first notch 131 is a wedge-shaped notch, and/or the second notch 141 is a wedge-shaped notch. The first notch 131 and/or the second notch 141 are/is provided as wedge-shaped notches, so that when the heat sink is bent, the first notch 131 and the second notch 141 are easily stretched and can be expanded or contracted along with the bending direction, and the heat sink 10 is not deformed by a large tensile force, thereby affecting the heat exchange effect. Wherein, the wedge-shaped gap can be triangular.

As shown in fig. 4, in the third embodiment of the present invention, the first end 13 has a first notch 131 extending to the edge of the first end 13, the second end 14 has a second notch 141 extending to the edge of the second end 14, and the first notch 131 is a rectangular notch and/or the second notch 141 is a rectangular notch. The first notch 131 and/or the second notch 141 are/is configured to be rectangular notches, so that when the heat sink is bent, the first notch 131 and the second notch 141 are easily stretched and can be expanded or contracted along with the bending direction, and the heat sink 10 is not deformed by a large tensile force, thereby affecting the heat exchange effect.

Specifically, as shown in fig. 5, in the fourth embodiment of the present invention, the first notch 131 has a first edge 1311, a second edge 1312, a third edge 1313, and a fourth edge 1314 connected in sequence, wherein the first edge 1311 and the fourth edge 1314 extend to the edge of the first end 13, the first edge 1311 and the fourth edge 1314 are arranged in parallel, an included angle is formed between the second edge 1312 and the first edge 1311, between the second edge 1311, between the third edge 1313, and between the fourth edge 1314. By arranging the first notch 131 as the first edge 1311, the second edge 1312, the third edge 1313 and the fourth edge 1314 which are connected in sequence, the first notch 131 is easily stretched when being bent, and can be expanded or contracted along with the bending direction, thereby preventing deformation of the inside of the heat sink 10 and affecting the heat exchange effect.

Specifically, a part of the structure of the heat sink 10 is formed by punching a plurality of punched pieces 15, each punched piece 15 corresponds to one punched hole, the plurality of punched pieces 15 are located between the first notch 131 and the second notch 141, or the plurality of punched pieces 15 are located between the first slit 132 and the second slit 142. A plurality of punched pieces 15 are provided, and each punched piece 15 corresponds to one punched hole, so that the ventilation effect of the heat sink 10 can be improved when heat dissipation is performed. Wherein, a plurality of punching press piece 15 divide into two sets ofly, and the incline direction of a plurality of punching press piece 15 in the first group is opposite with the incline direction of a plurality of punching press piece 15 in the second group, and punching press piece 15 can play the water conservancy diversion effect to the air like this, improves heat transfer effect.

Specifically, the fin structure includes a plurality of connecting in proper order fin 10, and the first side 11 of a fin 10 is connected with the second side 12 of adjacent fin 10, and a plurality of fin 10 are the wave setting. By connecting the first side 11 of one fin 10 and the second side 12 of an adjacent fin 10, it is possible to connect a plurality of fins 10 in sequence; the plurality of radiating fins 10 are arranged in a wave shape to improve a radiating effect. Wherein, fin structure is structure as an organic whole, is convenient for process like this, reduction in production cost. Specifically, the fin structure is a sheet metal structure and is formed through stamping and bending processes.

As shown in fig. 6 and 7, in the fifth embodiment of the present invention, a heat exchanger is provided, the heat exchanger includes a plurality of flat pipes 20 arranged and the fin structure, and a fin structure is provided between two adjacent flat pipes 20, wherein the extending direction of the first notch 131 or the first gap 132 of the fin structure is perpendicular to the length direction of the flat pipe 20, and the extending direction of the second notch 141 or the second gap 142 of the fin structure is perpendicular to the length direction of the flat pipe 20. By adopting the scheme, the fin structures are arranged between two adjacent flat tubes 20, the first end 13 is provided with the first notch 131 or the first gap 132 extending to the edge of the first end 13, and the second end 14 is provided with the second notch 141 or the second gap 142 extending to the edge of the second end 14, so that when the heat exchanger is bent, the first end 13 and the second end 14 are easily stretched or shrunk and can be expanded or shrunk along with the bending direction, the heat radiating fin 10 cannot be abnormally deformed due to larger pulling force, and the heat exchange effect of the heat exchanger is prevented from being influenced due to the abnormal deformation of the fin structures; moreover, according to the technical scheme, air resistance can be reduced under the condition that the heat exchange effect is not influenced. Specifically, in fig. 6 and 7, the fin 10 of the fin structure has a first slit 132 and a second slit 142 at both ends thereof, respectively.

In addition, in the heat exchanger, the heat exchanger is provided with a straight area and a bent area, two adjacent flat tubes 20 in the straight area are parallel, and an included angle is formed between two adjacent flat tubes 20 in the bent area; in the bent region, with respect to the heat sink 10 provided with the notches, the opening of one of the first notch 131 and the second notch 141 is expanded, and the opening of the other notch is contracted. Or for the radiating fin 10 with the gap, the gap at one end of the radiating fin 10 is enlarged, and the structures at two sides of the gap at the other end of the radiating fin 10 are overlapped.

Wherein, the connection area of two adjacent cooling fins 10 and flat pipe 20 are welded, so that the overall structural strength can be improved.

As shown in fig. 8, in the sixth embodiment of the present invention, a heat exchanger is provided, the heat exchanger includes a plurality of flat pipes 20 arranged and the fin structure described above, and a fin structure is provided between two adjacent flat pipes 20, wherein the extending direction of the first notch 131 of the fin structure is perpendicular to the length direction of the flat pipe 20, and the extending direction of the second notch 141 of the fin structure is perpendicular to the length direction of the flat pipe 20. By adopting the scheme, the micro-channel bending heat exchanger with reliable quality and good heat exchange effect is formed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fin structure, comprising:

a heat sink (10), said heat sink (10) having a first side (11), a second side (12), a first end (13) and a second end (14), said first side (11) and said second side (12) being disposed opposite each other, said first end (13) and said second end (14) being disposed between said first side (11) and said second side (12), and said first end (13) and said second end (14) being disposed opposite each other;

wherein the first end (13) has a first notch (131) or a first slit (132) extending to the edge of the first end (13); the second end (14) has a second notch (141) or a second slit (142) extending to the edge of the second end (14).

2. The fin structure according to claim 1, wherein the first side (11) and the second side (12) are arranged in parallel, and in the direction of the first side (11), the length of the heat sink (10) is 2L, the length of the first notch (131) or the first slit (132) is S1, and the length of the second notch (141) or the second slit (142) is S2, wherein S1 < L and S2 < L.

3. The fin structure according to claim 1, wherein the first end (13) has the first notch (131) and the second end (14) has the second notch (141), and the first notch (131) and the second notch (141) are identical in shape and size.

4. The fin structure according to claim 1, wherein the first end (13) has the first slit (132), the second end (14) has the second slit (142), and the first slit (132) and the second slit (142) are identical in shape and size.

5. Fin structure according to claim 1, characterized in that the first notch (131) is a wedge-shaped notch and/or the second notch (141) is a wedge-shaped notch.

6. Fin structure according to claim 1, characterized in that the first notch (131) is a rectangular notch and/or the second notch (141) is a rectangular notch.

7. The fin structure according to claim 1, wherein the first notch (131) has a first edge (1311), a second edge (1312), a third edge (1313) and a fourth edge (1314) which are connected in sequence, wherein the first edge (1311) and the fourth edge (1314) extend to the edge of the first end (13), the first edge (1311) and the fourth edge (1314) are arranged in parallel, the second edge (1312) and the first edge (1311) and the third edge (1313) each have an included angle therebetween, and the third edge (1313) and the fourth edge (1314) have an included angle therebetween.

8. The fin structure according to claim 1, wherein a portion of the structure on the heat sink (10) is formed by punching a plurality of punched pieces (15), each of the punched pieces (15) corresponds to one punched hole, a plurality of the punched pieces (15) are located between the first notch (131) and the second notch (141), or a plurality of the punched pieces (15) are located between the first slit (132) and the second slit (142).

9. The fin structure according to claim 1, characterized in that the fin structure comprises a plurality of the heat radiating fins (10) connected in sequence, a first side (11) of one heat radiating fin (10) is connected with a second side (12) of the adjacent heat radiating fin (10), and the plurality of the heat radiating fins (10) are arranged in a wave shape.

10. A heat exchanger, characterized in that the heat exchanger comprises a plurality of flat tubes (20) arranged in an array and a fin structure according to any one of claims 1 to 9, the fin structure is arranged between two adjacent flat tubes (20), wherein the extending direction of a first notch (131) or a first slit (132) of the fin structure is perpendicular to the length direction of the flat tubes (20), and the extending direction of a second notch (141) or a second slit (142) of the fin structure is perpendicular to the length direction of the flat tubes (20).