CN215810410U

CN215810410U - Fin and heat exchanger with same

Info

Publication number: CN215810410U
Application number: CN202121646973.4U
Authority: CN
Inventors: 王冠军; 梁新宇
Original assignee: Zhejiang Dunan Thermal Technology Co Ltd
Current assignee: Zhejiang Dunan Thermal Technology Co Ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-02-11
Anticipated expiration: 2031-07-19

Abstract

The utility model provides a fin and a heat exchanger with the same, comprising: the fin comprises a fin body, wherein a first inserting groove used for being matched with the flat tube is arranged on the fin body, the first inserting groove is provided with a windward end and a leeward end which are oppositely arranged, and the first inserting groove is obliquely and upwards arranged along the direction from the windward end to the leeward end; wherein, the included angle between the extending direction from the windward end to the leeward end and the horizontal direction is alpha, and alpha is more than 0 degree and less than 15 degrees. Through the technical scheme provided by the utility model, the technical problem that part of condensed water is remained on the upper surface of the flat pipe in the prior art can be solved.

Description

Fin and heat exchanger with same

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a fin and a heat exchanger with the fin.

Background

At present, the inserted sheet formula microchannel heat exchanger generally is applied to heat pump system, and the inserted sheet formula microchannel heat exchanger among the prior art adopts flat pipe level to arrange more, and the inserted sheet formula fin is in windward side protrusion in flat pipe, and partial comdenstion water is discharged along bulge, can alleviate the drainage problem to a certain extent.

However, a part of the condensed water remains on the upper surface of the flat tube, so that the defrosting is not thorough.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a fin and a heat exchanger with the fin, and aims to solve the technical problem that part of condensed water is remained on the upper surface of a flat tube in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a fin including: the fin comprises a fin body, wherein a first inserting groove used for being matched with the flat tube is arranged on the fin body, the first inserting groove is provided with a windward end and a leeward end which are oppositely arranged, and the first inserting groove is obliquely and upwards arranged along the direction from the windward end to the leeward end; wherein, the included angle between the extending direction from the windward end to the leeward end and the horizontal direction is alpha, and alpha is more than 0 degree and less than 15 degrees.

Further, the fin body includes interconnect's first plate body and second plate body, and first inserting groove sets up on first plate body, and the notch that second plate body was kept away from to first inserting groove forms the leeward end, and the one end that first inserting groove is close to the second plate body forms the windward end.

Furthermore, the second plate body is of a corrugated plate structure; and/or a plurality of windowing structures are arranged on the first plate body, the windowing structures are arranged at intervals along the extending direction of the first plate body, and a first inserting groove is arranged between every two adjacent windowing structures.

Furthermore, the windowing structure is provided with a top end and a bottom end which are oppositely arranged, the distance between the bottom end and the groove edge of the first inserting groove is L1, the distance between the top end and the groove edge of the first inserting groove is L2, and L2 is less than L1.

According to another aspect of the present invention, there is provided a heat exchanger comprising: flat tubes; the fin, the fin is the fin that above-mentioned provided, and the first inserting groove of fin is inserted and is established on flat pipe.

Further, the heat exchanger still includes: the collecting pipe is provided with a second inserting groove matched with the flat pipe, the extending direction of the second inserting groove and the horizontal direction form an included angle beta, and beta is larger than 0 degree and smaller than 15 degrees.

The heat exchanger further comprises a collecting pipe, wherein a second inserting groove used for being matched with the flat pipe is formed in the collecting pipe, and the second inserting groove is a horizontal groove; the flat pipe is provided with a connecting pipe section, a bending pipe section and a heat exchange pipe section which are sequentially connected, the connecting pipe section is a horizontal pipe section, and the heat exchange pipe section is an inclined pipe section matched with the first inserting groove.

Further, the heat exchanger is double-row structure, and double-row structure includes first row heat transfer portion and second row heat transfer portion, and the first flat pipe of first row heat transfer portion sets up or the parallel and level setting in the direction of height with the flat pipe of second row heat transfer portion.

Further, the first flat pipe and the second flat pipe are connected to form a U-shaped pipe structure.

Further, the flat tube is of an L-shaped structure, a C-shaped structure or a G-shaped structure.

By applying the technical scheme of the utility model, the direction from the windward end to the leeward end is obliquely and upwards arranged, and the inclination angle is arranged in the angle range, so that the condensed water on the flat tube can be ensured to be smoothly discharged, and the wind resistance cannot be excessively increased. Therefore, adopt the fin that this embodiment provided, can solve the technical problem that the upper surface of flat pipe among the prior art remains partial comdenstion water.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic view of a single row of fins provided according to an embodiment of the present invention;

FIG. 2 shows a view from A-A in FIG. 1;

FIG. 3 shows an enlarged view at I in FIG. 1;

FIG. 4 illustrates a schematic structural diagram of a heat exchanger having a single row of fins provided in accordance with an embodiment of the present invention;

FIG. 5 shows a front view of FIG. 4;

FIG. 6 shows a view along B-B in FIG. 5;

FIG. 7 shows an enlarged partial schematic view of FIG. 6;

FIG. 8 shows a front view of the header of FIG. 4;

FIG. 9 shows an enlarged view of a portion of the structure of FIG. 8;

FIG. 10 shows a top view of FIG. 4;

fig. 11 illustrates a front view of a heat exchanger having flattened tubes with folded tube segments provided in accordance with an embodiment of the present invention;

FIG. 12 shows a view along C-C in FIG. 11;

FIG. 13 shows a top view of the structure of FIG. 11;

fig. 14 is a schematic structural view of a flat tube with folded tube sections provided according to an embodiment of the present invention;

FIG. 15 illustrates the direction of airflow at the fins under the influence of a fan provided in accordance with an embodiment of the present invention;

FIG. 16 illustrates a schematic structural diagram of a heat exchanger having dual rows of fins provided in accordance with an embodiment of the present invention;

FIG. 17 shows a view from D-D in FIG. 16;

FIG. 18 shows a top view of the structure of FIG. 16;

FIG. 19 is a schematic view of a double row arrangement of aligned fenestrations of fins according to an embodiment of the utility model;

FIG. 20 is a schematic structural diagram illustrating a double row fin structure with staggered windowing structures according to an embodiment of the utility model;

FIG. 21 shows a corresponding schematic diagram of the structure of FIG. 16;

fig. 22 is a front view of a heat exchanger provided with U-shaped flat tubes and with double rows of fins having first insertion grooves extending at a predetermined angle;

FIG. 23 shows an E-E view of FIG. 22;

FIG. 24 shows a top view of the corresponding structure of FIG. 22;

FIG. 25 shows a front view of a heat exchanger having U-shaped flat tubes with dual rows of fins with first bayonet slots extending in the same direction, according to an embodiment of the present invention;

FIG. 26 shows an F-F view of FIG. 25;

FIG. 27 shows a top view of the corresponding structure of FIG. 25;

FIG. 28 shows a schematic diagram of the corresponding structure in FIG. 25;

fig. 29 is a schematic structural view illustrating a flat tube having a single-row L-shaped structure according to an embodiment of the present invention;

fig. 30 is a schematic structural view illustrating a flat tube of a double-row L-shaped structure according to an embodiment of the present invention;

fig. 31 is a schematic structural view illustrating a single row of flat tubes in a C-shaped configuration according to an embodiment of the present invention;

fig. 32 is a schematic structural diagram illustrating a flat tube of a single-row G-type structure according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a fin; 11. a fin body; 111. a first plate body; 112. a second plate body; 113. a windowing structure; 12. a first insertion groove; 20. flat tubes; 21. connecting the pipe sections; 22. bending the pipe section; 23. a heat exchange tube section; 30. a header pipe; 31. a second insertion groove; 40. a fan.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 32, there is provided a fin 10 according to an embodiment of the present invention, including: the fin comprises a fin body 11, wherein a first inserting groove 12 used for being matched with the flat pipe 20 is formed in the fin body 11, the first inserting groove 12 is provided with a windward end and a leeward end which are oppositely arranged, and the first inserting groove 12 is obliquely and upwards arranged along the direction from the windward end to the leeward end; wherein, the included angle between the extending direction from the windward end to the leeward end and the horizontal direction is alpha, and alpha is more than 0 degree and less than 15 degrees. Specifically, the flat tube 20 is inserted into the first insertion groove 12.

By adopting the structure, the direction from the windward end to the leeward end is obliquely and upwards arranged, and the inclination angle is arranged in the angle range, so that the condensed water on the flat pipe 20 can be smoothly discharged, and the wind resistance cannot be excessively increased. Therefore, with the fin 10 provided in this embodiment, the technical problem of the flat tube 20 in the prior art that a part of the condensed water remains on the upper surface can be solved.

Specifically, by providing the fan 40, the flow direction of the airflow on the fin 10 is guided under the induced air action of the fan 40, so as to improve the heat exchange efficiency.

In this embodiment, the fin body 11 includes a first plate 111 and a second plate 112 connected to each other, the first inserting groove 12 is disposed on the first plate 111, a notch of the first inserting groove 12 far away from the second plate 112 forms a leeward end, and an end of the first inserting groove 12 near the second plate 112 forms a windward end. With such a structure, the structural strength of the first plate 111 can be improved by providing the second plate 112, so as to ensure normal operation. Specifically, the second plate 112 in the present embodiment may be formed by integral molding with the first plate 111. Second plate 112 protrudes from flat tube 20.

Specifically, the first board body 111 and the second board body 112 in this embodiment are both strip-shaped board structures, the first board body 111 and the second board body 112 both extend along the same direction, and the first board body 111 and the second board body 112 are connected and arranged along a direction perpendicular to the extending direction of the first board body 111.

Preferably, the second plate 112 in this embodiment may be a corrugated plate structure. Alternatively, a plurality of window structures 113 may be disposed on the first plate 111 in this embodiment, the window structures 113 are disposed at intervals along the extending direction of the first plate 111, and the first inserting slot 12 is disposed between two adjacent window structures 113. Alternatively, the second plate 112 in this embodiment may be a corrugated plate structure; a plurality of window structures 113 may be disposed on the first plate 111, the window structures 113 are disposed at intervals along an extending direction of the first plate 111, and a first inserting groove 12 is disposed between two adjacent window structures 113.

Preferably, the second plate 112 in the present embodiment may be a corrugated plate structure; a plurality of window structures 113 may be disposed on the first plate 111, the window structures 113 are disposed at intervals along an extending direction of the first plate 111, and a first inserting groove 12 is disposed between two adjacent window structures 113. A plurality of bending sections through the buckled plate can increase the air disturbance, and the reinforcing heat transfer plays the effect of strengthening rib, and simultaneously, the setting of buckled plate also can guide the discharge of comdenstion water. Air disturbance can be increased by arranging the windowing structure 113, and heat exchange is enhanced.

In this embodiment, the windowing structure 113 has a top end and a bottom end disposed opposite to each other, the bottom end is spaced apart from the slot edge of the first inserting-connecting slot 12 by a distance L1, the top end is spaced apart from the slot edge of the first inserting-connecting slot 12 by a distance L2, and L1 < L2. It should be noted that, for the same windowing structure 113, a first inserting groove 12 is disposed above the windowing structure 113, a first inserting groove 12 is also disposed below the windowing structure 113, where "the distance between the bottom end and the groove edge of the first inserting groove 12" is "the distance between the bottom end and the groove edge of the first inserting groove 12 located below the windowing structure 113", and "the distance between the top end and the groove edge of the first inserting groove 12" is "the distance between the top end and the groove edge of the first inserting groove 12 located above the windowing structure 113". By making L1 smaller than L2, it is possible to facilitate optimizing the amount of heat exchange.

The second embodiment of the present invention provides a heat exchanger, which includes flat tubes 20 and fins 10, where the fins 10 are the fins 10 provided in the above embodiments, and the first inserting grooves 12 of the fins 10 are inserted in the flat tubes 20. With such a structure, since the first inserting groove 12 is an inclined groove, the condensed water can be discharged smoothly.

Specifically, the heat exchanger in this embodiment further includes a collecting pipe 30, a second inserting groove 31 for matching with the flat pipe 20 is provided on the collecting pipe 30, an included angle between the extending direction of the second inserting groove 31 and the horizontal direction is β, and β is greater than 0 ° and less than 15 °. The second socket groove 31 is arranged obliquely upward. Specifically, flat pipe 20 is inserted into second insertion groove 31. By adopting the structure, the flat pipe 20 can be inclined, so that the condensed water on the flat pipe 20 can be discharged smoothly. Through setting up beta in above-mentioned angle range, can be convenient for make the comdenstion water on flat pipe 20 discharge smoothly better, avoid the condition that the comdenstion water is remained. Preferably, α and β may be set at the same angle to facilitate mounting of flat tubes 20 such that flat tubes 20 are inclined at the same angle.

In the third embodiment, a heat exchanger is provided, and the heat exchanger in the third embodiment is different from the heat exchanger in the second embodiment mainly in the structure of the second insertion groove 31 on the collecting main 30. The heat exchanger in this embodiment further includes a collecting pipe 30, a second inserting groove 31 used for being matched with the flat pipe 20 is arranged on the collecting pipe 30, and the second inserting groove 31 is a horizontal groove. The flat pipe 20 has a connecting pipe section 21, a bending pipe section 22 and a heat exchange pipe section 23 which are connected in sequence, the connecting pipe section 21 is a horizontal pipe section, and the heat exchange pipe section 23 is an inclined pipe section matched with the first inserting groove 12. With the structure, the connecting pipe section 21 is inserted into the second insertion groove 31, and the heat exchange pipe section 23 is inserted into the first insertion groove 12, so that the heat exchange pipe end is inclined, and the condensed water at the heat exchange pipe section 23 can be discharged smoothly.

In the second and third embodiments, the heat exchanger may have a double-row structure, the double-row structure includes a first heat exchanging portion and a second heat exchanging portion, and the first flat tubes 20 of the first heat exchanging portion and the second flat tubes 20 of the second heat exchanging portion are staggered or aligned in the height direction. By adopting the structure, the fin 10 and the collecting pipe 30 can be conveniently applied to the heat exchanger with a double-row structure, the heat exchange flow path is conveniently increased, and the heat exchange performance is improved. In addition, the scheme of staggered arrangement in the height direction is adopted, so that heat exchange can be carried out better, and the heat exchange performance is improved. Accordingly, the fins 10 may also be double rows.

Preferably, first flat tube 20 and second flat tube 20 in the above-described embodiment are connected to form a U-shaped tube structure. Specifically, the first flat tube 20 and the second flat tube 20 in this embodiment may be formed by integral molding.

In the second embodiment and the first embodiment, the flat tubes 20 may have an L-shaped structure, a C-shaped structure, or a G-shaped structure. The structure of the corresponding flat tube 20 can be selected according to the heat exchange requirement and the spatial layout. The L-shaped structure, the C-shaped structure, or the G-shaped structure may be a single-row or double-row structure, and correspondingly, the fins 10 may also be single-row or double-row structures.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: by adopting the fin and the heat exchanger provided by the embodiment, the flat tube can be obliquely arranged, so that condensed water on the flat tube can smoothly flow out; and the inclination direction of the flat pipe is the same as the wind direction, so that the increase of wind resistance caused by the inclination of the flat pipe can be reduced.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

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, comprising:

the fin comprises a fin body (11), wherein a first inserting groove (12) used for being matched with a flat pipe (20) is formed in the fin body (11), the first inserting groove (12) is provided with a windward end and a leeward end which are arranged oppositely, and the first inserting groove (12) is arranged in an inclined mode upwards along the direction from the windward end to the leeward end;

wherein, the included angle between the extending direction from the windward end to the leeward end and the horizontal direction is alpha, and alpha is more than 0 degree and less than 15 degrees.

2. The fin according to claim 1, wherein the fin body (11) comprises a first plate body (111) and a second plate body (112) which are connected with each other, the first insertion groove (12) is arranged on the first plate body (111), a notch of the first insertion groove (12) far away from the second plate body (112) forms the leeward end, and one end of the first insertion groove (12) near the second plate body (112) forms the windward end.

3. The fin according to claim 2,

the second plate body (112) is of a corrugated plate structure; and/or the presence of a gas in the gas,

the first plate body (111) is provided with a plurality of windowing structures (113), the windowing structures (113) are arranged at intervals along the extending direction of the first plate body (111), and the first inserting groove (12) is arranged between every two adjacent windowing structures (113).

4. The fin according to claim 3, wherein the fenestration (113) has oppositely disposed top and bottom ends, the bottom end being at a distance L1 from the slot edge of the first mating slot (12), the top end being at a distance L2 from the slot edge of the first mating slot (12), L1 < L2.

5. A heat exchanger, comprising:

flat tubes (20);

the fin (10), the fin (10) is the fin (10) of any one of claims 1 to 4, and the first inserting groove (12) of the fin (10) is inserted on the flat tube (20).

6. The heat exchanger of claim 5, further comprising:

the collecting pipe (30) is provided with a second inserting groove (31) matched with the flat pipe (20), the extending direction of the second inserting groove (31) and the horizontal direction form an included angle beta, and the beta is larger than 0 degree and smaller than 15 degrees.

7. The heat exchanger according to claim 5, further comprising a header (30), wherein a second insertion groove (31) for being matched with the flat tube (20) is formed in the header (30), and the second insertion groove (31) is a horizontal groove;

the flat pipe (20) is provided with a connecting pipe section (21), a bent pipe section (22) and a heat exchange pipe section (23) which are sequentially connected, the connecting pipe section (21) is a horizontal pipe section, and the heat exchange pipe section (23) is an inclined pipe section matched with the first insertion groove (12).

8. The heat exchanger according to claim 5, wherein the heat exchanger is of a double-row structure including a first heat exchanging portion and a second heat exchanging portion, and the first flat tubes (20) of the first heat exchanging portion and the second flat tubes (20) of the second heat exchanging portion are staggered or flush in a height direction.

9. The heat exchanger according to claim 8, characterized in that the first flat tube (20) is connected with the second flat tube (20) to form a U-shaped tube structure.

10. The heat exchanger according to any one of claims 5 to 8, characterized in that the flat tubes (20) are of an L-shaped configuration, or of a C-shaped configuration, or of a G-shaped configuration.