CN216159721U

CN216159721U - Heat exchanger fin, heat exchanger and air conditioner

Info

Publication number: CN216159721U
Application number: CN202122294173.7U
Authority: CN
Inventors: 吴庆壮
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-04-01
Anticipated expiration: 2031-09-22

Abstract

The utility model provides a heat exchanger fin, a heat exchanger and an air conditioner, wherein the heat exchanger fin comprises a sheet body, the sheet body is provided with a plurality of through holes, the sheet body comprises a first main surface and a second main surface, the first main surface and the second main surface are oppositely arranged in the thickness direction of the sheet body, the first main surface of the sheet body is provided with a plurality of protrusions, each protrusion is in a strip shape and extends along the length direction of the sheet body, the protrusions are arranged at intervals in the width direction of the sheet body, and at least part of the through holes are arranged at intervals in the length direction of the sheet body. The heat exchanger fin provided by the utility model has the advantages of high strength, high heat exchange efficiency and low energy consumption, the heat exchange efficiency of the heat exchanger is ensured, and the refrigerating and heating performances of the air conditioner are improved.

Description

Heat exchanger fin, heat exchanger and air conditioner

Technical Field

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

Background

The air conditioner heat exchanger needs a small-pipe-diameter finned heat exchanger from the aspects of energy saving and environmental protection, and aims to reduce the manufacturing cost of the air conditioner and achieve the effects of energy saving, environmental protection and economy. The heat exchanger with small pipe diameter requires large heat exchange efficiency, so the design of the heat exchange fins is particularly important.

In the related technology, the bridge type slotted fin of the louver structure has low heat exchange efficiency and large energy consumption, and the heat exchanger fin has insufficient bending strength and is easy to be inverted, thereby influencing the heat exchange effect and appearance.

SUMMERY OF THE UTILITY MODEL

The present invention is based on the discovery and recognition by the inventors of the following facts and problems:

in the correlation technique, under the same volume, the bridge type slotted fin of shutter structure has lower heat exchange efficiency and larger energy consumption, and the bending strength of the heat exchanger fin is insufficient and easy to fall, thereby influencing the heat exchange effect and appearance.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides the heat exchanger fin which has the advantages of high heat exchange efficiency, low energy consumption, high strength and difficulty in falling.

The embodiment of the utility model provides a heat exchanger with the heat exchanger fin.

The embodiment of the utility model provides an air conditioner with the heat exchanger.

The heat exchanger fin comprises a sheet body, wherein the sheet body is provided with a plurality of through holes, the sheet body comprises a first main surface and a second main surface, the first main surface and the second main surface are oppositely arranged in the thickness direction of the sheet body, the first main surface of the sheet body is provided with a plurality of protrusions, each protrusion is in a strip shape and extends along the length direction of the sheet body, the protrusions are arranged at intervals in the width direction of the sheet body, and at least part of the through holes are arranged at intervals in the length direction of the sheet body.

The heat exchanger fin provided by the embodiment of the utility model has the advantages that the first main surface is provided with the bulge, so that the bending strength of the heat exchanger fin is enhanced, the adverse effects on appearance and heat exchange efficiency caused by fin falling of the heat exchanger fin are reduced, and the heat exchange area of the first main surface is increased by the bulge, so that the heat exchange efficiency of the heat exchanger fin is improved, and the energy consumption is reduced.

Therefore, the heat exchanger fin provided by the embodiment of the utility model has the advantages of high heat exchange efficiency, low energy consumption, high strength and difficulty in falling.

In some embodiments, each of the protrusions extends along a length of the sheet at least a distance greater than a distance between two adjacent perforations.

In some embodiments, the perforations are located between two adjacent protrusions in a width direction of the sheet.

In some embodiments, the blade has an opening on one side in the width direction, the opening penetrating each of the first main surface and the second main surface, the opening having a convex arc surface and a concave arc surface opposite in the length direction of the blade.

In some embodiments, the other side in the width direction of the sheet has a notch that extends through each of the first and second major surfaces, the opening and the notch being opposite in the width direction of the sheet.

In some embodiments, further comprising a plurality of sleeves disposed on the first major surface of the sheet, the lumens of the sleeves being in communication with the perforations, the plurality of sleeves being in one-to-one correspondence with the plurality of perforations.

In some embodiments, the sleeve includes a first tube section, a second tube section, and a third tube section, the first tube section is connected to the first main surface of the sheet body, the second tube section is connected between the first tube section and the third tube section in the thickness direction of the sheet body, an inner wall surface of the first tube section is flush with a wall surface of the perforation, a radial dimension of the first tube section is larger than a radial dimension of the third tube section, and an end of the third tube section, which is far away from the second tube section in the thickness direction of the sheet body, is provided with an outwardly extending flange.

In some embodiments, the inner wall surface of the second pipe section is a convex arc surface smoothly connected with the inner wall surface of the third pipe section, and the inner wall surface of the flange is a convex arc surface smoothly connected with the inner wall surface of the third pipe section.

In some embodiments, the sheet body further comprises a plurality of bridge piece groups, the bridge piece groups are arranged on the first main surface of the sheet body, the bridge piece groups comprise a plurality of bridge pieces which are arranged at intervals in the width direction of the sheet body, at least part of the plurality of bridge piece groups are arranged at intervals in the length direction of the sheet body, the bridge piece groups are located between two adjacent protrusions in the width direction of the sheet body, and the bridge piece groups are located between two adjacent through holes in the length direction of the sheet body.

In some embodiments, the bridge piece includes a body portion and a connecting portion connected between the body portion and the piece.

In some embodiments, the connecting portion includes a first connecting portion and a second connecting portion, and the body portion, the first connecting portion, and the second connecting portion enclose an airflow channel.

In some embodiments, the sheet further includes a first perforation group and a second perforation group, a part of the plurality of perforations forms the first perforation group, and the rest of the plurality of perforations forms the second perforation group, the first perforation group and the second perforation group are arranged at intervals in the width direction of the sheet, the first perforation group is located between two adjacent protrusions in the width direction of the sheet, and the second perforation group is located between two adjacent protrusions in the width direction of the sheet.

In some embodiments, the portion of the plurality of perforations is spaced apart in a length direction of the sheet, the remaining portion of the plurality of perforations is spaced apart in the length direction of the sheet, the portion of the plurality of perforations is spaced apart from the remaining portion of the plurality of perforations in a width direction of the sheet, and the portion of the plurality of perforations is staggered from the remaining portion of the plurality of perforations in the length direction of the sheet.

The heat exchanger provided by the embodiment of the utility model comprises the heat exchange tube and the heat exchanger fin provided by any one embodiment.

The air conditioner provided by the embodiment of the utility model comprises the heat exchanger provided by any one of the embodiments.

Drawings

FIG. 1 is a front view of a heat exchanger fin of an embodiment of the present invention.

Fig. 2 is a schematic view of a heat exchanger fin according to an embodiment of the present invention, in which two projections are provided.

Fig. 3 is an enlarged schematic view of a in fig. 2.

Fig. 4 is a schematic view of a heat exchanger fin according to an embodiment of the present invention, in which the number of projections is four.

FIG. 5 is an enlarged schematic view of B in FIG. 4

Fig. 6 is a view showing a state in which the heat exchanger fin according to the embodiment of the present invention is bent in use.

Fig. 7 is an enlarged schematic view of C in fig. 6.

FIG. 8 is a schematic view of a heat exchanger according to an embodiment of the present invention.

Reference numerals:

sheet 1, first major surface 12, second major surface 13;

the perforation 2, the first perforation group 21, the second perforation group 22;

the projection 3, the first projection 31, the second projection 32, the third projection 33, the fourth projection 34;

an opening 4;

a notch 5;

the pipe comprises a sleeve 6, a first pipe section 61, a second pipe section 62, a third pipe section 63 and a flanging 64;

bridge piece group 7, bridge piece 71, first bridge piece 711, second bridge piece 712 and third bridge piece 713;

the body portion 72, the first connection portion 73, the second connection portion 74, the airflow passage 75, the airflow hole 76;

a heat exchanger 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A heat exchanger fin according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1, the heat exchanger fin according to the embodiment of the present invention includes a sheet body 1, where the sheet body 1 has a plurality of through holes 2, and the through holes 2 penetrate through the sheet body 1 along a thickness direction (e.g., an up-down direction in fig. 1) of the sheet body 1. The sheet body 1 includes a first main surface 12 and a second main surface 13, and the first main surface 12 and the second main surface 13 are oppositely disposed in the thickness direction of the sheet body 1. The first main surface 12 of the sheet body 1 is provided with a plurality of protrusions 3, each protrusion 3 is strip-shaped and extends along the length direction (left and right direction in fig. 3) of the sheet body 1, and the plurality of protrusions 3 are arranged at intervals in the width direction (front and back direction in fig. 3) of the sheet body 1. At least some of the plurality of perforations 2 are arranged at intervals in the length direction of the sheet body 1.

And the perforations 2 are located between two adjacent protrusions 3 in the width direction of the sheet 1.

That is to say, the first main surface 12 of the sheet body 1 is provided with the protrusions 3, so that the bending strength of the sheet body 1 is improved, and the heat exchange area of the first main surface 12 is increased by the protruded portions of the protrusions 3.

It can be understood that, as shown in fig. 1, the first main surface 12 is the upper surface of the sheet body 1, the second main surface 13 is the lower surface of the sheet body 1, and the second main surface 13 of the sheet body 1 is provided with a plurality of concave portions extending in the left-right direction of the sheet body 1, and the plurality of concave portions correspond to the plurality of protrusions 3 one by one, so that the bending strength of the sheet body 1 is further improved, and the consumption of materials is reduced.

Alternatively, as shown in fig. 2 and 3, the projections 3 may be two, and the two projections 3 are located at the front end and the rear end of the first main surface 12, respectively.

Alternatively, as shown in fig. 4 and 5, the number of the protrusions 3 may be four, and the four protrusions 3 are a first protrusion 31, a second protrusion 32, a third protrusion 33, and a fourth protrusion 34.

The first protrusion 31 is located at the front end of the sheet body 1, the second protrusion 32 is located at the rear end of the sheet body 1, the third protrusion 33 and the fourth protrusion 34 are both located in the middle of the sheet body 1, the third protrusion 33 is located in front of the fourth protrusion 34, and the front-rear distance between the first protrusion 31 and the third protrusion 33 is the same as the front-rear distance between the second protrusion 32 and the fourth protrusion 34.

It will be appreciated that the first projection 31 is located at the front end of the blade 1, meaning that the first projection 31 is provided on the first major surface and the first projection 31 is adjacent the front end face of the blade 1; the second projection 32 is located at the rear end of the sheet body 1, meaning that the second projection 32 is provided on the first main surface, and the second projection 32 is adjacent to the rear end surface of the sheet body 1.

The heat exchanger fin of the embodiment of the utility model has the advantages that the bulges 3 are arranged on the first main surface 12, so that the bending strength of the heat exchanger fin is enhanced, the adverse effects on appearance and heat exchange efficiency caused by fin falling of the heat exchanger fin are reduced, and the heat exchange area of the first main surface 12 is increased by the bulges 3, so that the heat exchange efficiency of the heat exchanger fin is improved, and the energy consumption is reduced.

In some embodiments, each protrusion 3 extends along the length of the sheet 1 by at least a distance greater than the distance between two adjacent perforations 2.

It can be understood that the extension length of the protrusion 3 is at least longer than the distance between two adjacent through holes 2, which can make the heat exchanger fin more resistant to bending.

Specifically, as shown in fig. 2, the projections 3 extend in length in accordance with the length of the sheet body 1.

In some embodiments, the perforations 2 are located between two adjacent protrusions 3 in the width direction of the sheet 1.

Alternatively, when the protrusions 3 are two, the plurality of perforations 2 are arranged at intervals in the left-right direction of the sheet body 1, and the perforations 2 are located between the two protrusions 3 in the front-rear direction of the sheet body 1 (each of the plurality of perforations 2 is located between the two protrusions 3 in the front-rear direction of the sheet body 1), and therefore, the perforations 2 are only one row in the front-rear direction of the sheet body 1.

Alternatively, when the number of the protrusions 3 is four, a part of the plurality of through holes 2 is distributed between the first protrusion 31 and the third protrusion 33, and another part of the plurality of through holes 2 is distributed between the second protrusion 32 and the fourth protrusion 34, so that the through holes 2 are arranged in two rows in the front-rear direction of the sheet body 1, and the heat exchange efficiency of the heat exchanger 8 is further improved.

In some embodiments, one side of the sheet 1 in the width direction (e.g., the front-rear direction in fig. 3) (e.g., the front side of the sheet 1 in fig. 3) has an opening 4, the opening 4 penetrates each of the first main surface 12 and the second main surface 13, and the opening 4 has a convex arc surface and a concave arc surface that are opposite in the length direction of the sheet 1.

It can be understood that, as shown in fig. 6, the convex arc face matches with the concave arc face, and in order to satisfy the assembly demand, the heat exchanger fin can be buckled and changed, and after the heat exchanger fin was buckled, the convex arc face and the concave arc face of opening 4 department contacted, and opening 4 made the width of lamellar body 1 at opening 4 position diminish to make the heat exchanger fin can buckle more easily in opening 4 department, with this reach the assembly demand.

Further, opening 4 is a plurality of, and a plurality of opening 4 are arranged along the length direction of lamellar body 1 interval, and a plurality of opening 4 make the heat exchanger fin can buckle from different positions to the use of many multifold bending shape is adapted.

Specifically, as shown in fig. 3 and 5, the opening 4 is located on the front side of the sheet body 1, the convex arc surface is located on the left side of the concave arc surface, when the sheet body 1 is bent at the opening 4, the convex arc surface and the concave arc surface are close to each other to be in contact, the rear end of the opening 4 is located in front of the third protrusion 33, the opening 4 is located between two adjacent through holes 2 in the left-right direction of the sheet body 1, and the first protrusion 31 is divided into multiple sections by the multiple openings 4.

In some embodiments, the other side of sheet 1 in the width direction (e.g., the back side of sheet 1 in fig. 3) has a notch 5, notch 5 extends through each of first major surface 12 and second major surface 13, and opening 4 and notch 5 are opposed in the width direction of sheet 1.

It can be understood that, as shown in fig. 2 to 6, the opening 4 and the notch 5 further reduce the width of the sheet body 1 at the position of the opening 4, so that the sheet body 1 can be bent and cut at the position of the opening 4 and the notch 5 more easily, thereby meeting the process requirements.

Further, breach 5 is a plurality of, and a plurality of breach 5 are arranged along the length direction of lamellar body 1 interval, a plurality of breach 5 and a plurality of openings 4 one-to-one.

Specifically, as shown in fig. 3 and 5, the notch 5 is located on the rear side of the sheet body 1, the front end of the notch 5 is located behind the fourth protrusion 34, and the plurality of notches 5 divide the second protrusion 32 into a plurality of sections.

The heat exchanger fin of the embodiment of the utility model has the advantages that the bending strength of the heat exchanger fin is improved by arranging the protrusions 3, and the openings 4 and the notches 5 are arranged on the sheet body 1, so that the heat exchanger fin is difficult to bend at the positions except the openings 4 and the notches 5, and is relatively easy to bend and cut at the positions of the openings 4 and the notches 5, thereby meeting the process requirements.

In some embodiments, as shown in fig. 1, further comprising a plurality of sleeves 6, the sleeves 6 being disposed on the first major surface 12 of the sheet 1, the lumens of the sleeves 6 being in communication with the perforations 2, the plurality of sleeves 6 being in one-to-one correspondence with the plurality of perforations 2.

It will be appreciated that the sleeve 6 is used to pass through a heat exchange tube which is guided and positioned by the sleeve 6.

Specifically, as shown in fig. 1, the sleeve 6 is disposed along the up-down direction of the sheet body 1, that is, the axial direction of the sleeve 6 coincides with the up-down direction, the sleeve 6 is located above the sheet body 1, and the lumen of the sleeve 6 communicates with the through hole 2.

In some embodiments, as shown in fig. 1, the sleeve 6 comprises a first tube section 61, a second tube section 62 and a third tube section 63, the first tube section 61 being connected to the first major surface 12 of the sheet body 1, the second tube section 62 being connected between the first tube section 61 and the third tube section 63 in the thickness direction of the sheet body 1 (e.g., up and down direction in fig. 1). The inner wall surface of the first pipe section 61 is flush with the wall surface of the through hole 2, the radial dimension of the first pipe section 61 is larger than the radial dimension of the third pipe section 63, and one end of the third pipe section 63, which is far away from the second pipe section 62 in the thickness direction of the sheet body 1 (such as the upper end of the third pipe section 63 in fig. 1), is provided with an outward extending flange 64.

It will be appreciated that the radial dimension of the first tube section 61 is greater than the radial dimension of the third tube section 63 such that the heat exchange tube can be more easily inserted into the bore 2 from the third tube section 63 in the direction of the first tube section 61 (i.e., from top to bottom).

Specifically, as shown in fig. 1 and 7, the first pipe section 61 includes a flange folded inward, the first pipe section 61 is located below the second pipe section 62, the second pipe section 62 is located below the third pipe section 63, the flange of the first pipe section 61 is connected to the lower end of the second pipe section 62, the upper end of the second pipe section 62 is connected to the lower end of the third pipe section 63, and the upper end of the third pipe section 63 is provided with a flange 64 extending outward.

In some embodiments, as shown in fig. 1 and 7, the inner wall surface of the second pipe section 62 is a convex curved surface that smoothly meets the inner wall surface of the third pipe section 63, and the inner wall surface of the flange 64 is a convex curved surface that smoothly meets the inner wall surface of the third pipe section 63.

The convex cambered surface of the second pipe section 62 and the convex cambered surface of the flanging 64 ensure that the heat exchange pipe is smoother in the process of inserting or extracting the heat exchange pipe into or out of the through hole 2, and the outer wall of the heat exchange pipe is prevented from being scraped against the inner wall of the sleeve 6.

In some embodiments, the heat exchanger fin of the embodiment of the present invention further includes a plurality of bridge piece groups 7, the bridge piece groups 7 are disposed on the first main surface 12 of the sheet body 1, the bridge piece groups 7 include a plurality of bridge pieces 71 arranged at intervals in a width direction (e.g., a front-rear direction in fig. 3) of the sheet body 1, at least some of the plurality of bridge piece groups 7 are arranged at intervals in a length direction (e.g., a left-right direction in fig. 3) of the sheet body 1, the bridge piece groups 7 are located between two adjacent protrusions 3 in the width direction of the sheet body 1, and the bridge piece groups 7 are located between two adjacent through holes 2 in the length direction of the sheet body 1.

Alternatively, as shown in fig. 2 and 3, when the protrusions 3 are two, the plurality of perforations 2 are arranged at intervals in the left-right direction of the sheet body 1, the plurality of bridge piece groups 7 are arranged at intervals in the left-right direction of the sheet body 1, and the bridge piece groups 7 are located between two adjacent perforations 2 in the left-right direction of the sheet body 1.

Specifically, as shown in fig. 4 and 5, when the protrusions 3 are four, a part of the plurality of bridge piece groups 7 is distributed between the first protrusion 31 and the third protrusion 33, another part of the plurality of bridge piece groups 7 is distributed between the second protrusion 32 and the fourth protrusion 34, and the bridge piece groups 7 are located between two adjacent through holes 2 in the left-right direction of the sheet body 1.

It can be understood that the bridge plate group 7 is arranged on the first main surface 12, so that the heat exchange area of the first main surface 12 is increased, the heat exchange efficiency of the heat exchanger fin is improved, and the energy consumption is reduced.

In some embodiments, the bridge piece 71 includes a body portion 72 and a connecting portion, the connecting portion is connected between the body portion 72 and the sheet body 1, the connecting portion includes a first connecting portion 73 and a second connecting portion 74, the first connecting portion 73 and the second connecting portion 74 are disposed opposite to each other in a length direction of the sheet body 1, and the body portion 72, the first connecting portion 73 and the second connecting portion 74 enclose an airflow channel 75.

Further, as shown in fig. 5 to 7, the bridge piece 71 includes a first bridge piece 711, a second bridge piece 712 and a third bridge piece 713, the number of the second bridge pieces 712 is two, the two second bridge pieces 712 are oppositely disposed in the width direction of the sheet body 1, and the two second bridge pieces 712 are respectively located at two sides of the first bridge piece 711. The number of the third bridge pieces 713 is four, two third bridge pieces 713 are located on one side of one second bridge piece 712 far away from the first bridge piece 711, the two third bridge pieces 713 are arranged at intervals in the length direction of the sheet body 1, the other two third bridge pieces 713 are located on one side of the other second bridge piece 712 far away from the first bridge piece 711, and the other two third bridge pieces 713 are arranged at intervals in the length direction of the sheet body 1.

Specifically, as shown in fig. 7, an upper end of the first connecting portion 73 is connected to a left end of the body portion 72, a lower end of the first connecting portion 73 is connected to the first main surface 12, an upper end of the second connecting portion 74 is connected to a right end of the body portion 72, a lower end of the second connecting portion 74 is connected to the first main surface 12, a plurality of airflow holes 76 are formed in the first main surface 12, the airflow holes 76 penetrate through each of the first main surface 12 and the second main surface 13, the airflow holes 76 are located below the body portion 72, the plurality of airflow holes 76 correspond to the plurality of body portions 72 one-to-one, the first connecting portion 73, the body portion 72, and the second connecting portion 74 enclose an airflow channel 75, and an airflow during heat exchange flows through the airflow holes 76 and the airflow channel 75, so that the heat conductivity of the heat exchanger fin is improved, and heat exchange is facilitated.

In some embodiments, a first perforation group 21 and a second perforation group 22 are further included. Some of the plurality of perforations 2 form a first perforation group 21, and the rest of the plurality of perforations 2 form a second perforation group 22, and the first perforation group 21 and the second perforation group 22 are arranged at intervals in the width direction (front-rear direction in fig. 3) of the sheet body 1. The first perforation group 21 is located between two adjacent projections 3 in the width direction of the sheet body 1 (front-back direction in fig. 3), and the second perforation group 22 is located between two adjacent projections 3 in the width direction of the sheet body 1 (front-back direction in fig. 3). Some of the plurality of perforations 2 are arranged at intervals in the longitudinal direction (left-right direction in fig. 3) of the sheet body 1, the remaining of the plurality of perforations 2 are arranged at intervals in the longitudinal direction (left-right direction in fig. 3) of the sheet body 1, some of the plurality of perforations 2 are spaced from the remaining of the plurality of perforations 2 in the width direction of the sheet body 1, and some of the plurality of perforations 2 are arranged with the remaining of the plurality of perforations 2 being staggered in the longitudinal direction (left-right direction in fig. 3) of the sheet body 1.

Specifically, as shown in fig. 5 and 6, the first perforation group 21 is located in front of the second perforation group 22, the first perforation group 21 is located between the first protrusion 31 and the third protrusion 33, and the second perforation group 22 is located between the second protrusion 32 and the fourth protrusion 34, so that the heat exchanger fin according to the embodiment of the present invention greatly improves the heat exchange efficiency of the heat exchanger fin, and thus improves the refrigeration and heating performance.

In summary, compared with the heat exchanger fin in the related art, the heat exchanger fin according to the embodiment of the present invention increases the heat exchange area of the first main surface 12 by arranging the protrusions 3 on the sheet body 1, so that the heat exchange efficiency is higher and the energy consumption is lower under the same volume, and the protrusions 3 also enhance the bending strength of the heat exchanger fin, so that the heat exchanger fin is not easy to be rewound.

The heat exchanger 8 according to an embodiment of the present invention includes a heat exchange tube and the heat exchanger fin of any of the above embodiments.

An air conditioner according to an embodiment of the present invention includes the heat exchanger 8 of any of the above embodiments.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A heat exchanger fin, comprising a sheet body having a plurality of perforations, the sheet body including a first major surface and a second major surface, the first major surface and the second major surface being disposed opposite to each other in a thickness direction of the sheet body, the first major surface of the sheet body being provided with a plurality of protrusions, each of the protrusions having a strip shape and extending in a length direction of the sheet body, the plurality of protrusions being arranged at intervals in a width direction of the sheet body, at least some of the plurality of perforations being arranged at intervals in the length direction of the sheet body.

2. The heat exchanger fin according to claim 1, wherein each of the protrusions extends in length along the length of the sheet at least a distance greater than a distance between two adjacent perforations.

3. The heat exchanger fin according to claim 1, wherein the perforations are located between two adjacent protrusions in a width direction of the sheet body.

4. The heat exchanger fin as recited in claim 1, wherein the sheet body width direction side has an opening that penetrates each of the first main surface and the second main surface, the opening having a convex arc surface and a concave arc surface that are opposite in a length direction of the sheet body.

5. The heat exchanger fin as recited in claim 4, wherein the other side in the width direction of the sheet body has a notch that extends through each of the first and second major surfaces, the opening and the notch being opposed in the width direction of the sheet body.

6. The heat exchanger fin as recited in claim 1, further comprising a plurality of sleeves provided on said first major surface of said sheet, the lumens of said sleeves communicating with said perforations, a plurality of said sleeves in one-to-one correspondence with a plurality of said perforations.

7. The heat exchanger fin according to claim 6, wherein the sleeve includes a first tube section, a second tube section, and a third tube section, the first tube section is connected to the first major surface of the sheet body, the second tube section is connected between the first tube section and the third tube section in a thickness direction of the sheet body, an inner wall surface of the first tube section is flush with a wall surface of the perforation, a radial dimension of the first tube section is larger than a radial dimension of the third tube section, and an end of the third tube section, which is away from the second tube section in the thickness direction of the sheet body, is provided with an outwardly extending flange.

8. The heat exchanger fin as recited in claim 7, wherein an inner wall surface of the second tube section is a convex curved surface smoothly continuous with an inner wall surface of the third tube section, and an inner wall surface of the turn-up is a convex curved surface smoothly continuous with an inner wall surface of the third tube section.

9. The heat exchanger fin according to claim 1, further comprising a plurality of bridge piece groups disposed on the first major surface of the sheet body, the bridge piece groups including a plurality of bridge pieces arranged at intervals in a width direction of the sheet body, at least a portion of the plurality of bridge piece groups being arranged at intervals in a length direction of the sheet body, the bridge piece groups being located between two adjacent protrusions in the width direction of the sheet body, the bridge piece groups being located between two adjacent perforations in the length direction of the sheet body.

10. The heat exchanger fin according to claim 9, wherein the bridge sheet includes a body portion and a connecting portion, the connecting portion being connected between the body portion and the sheet body.

11. The heat exchanger fin as recited in claim 10, wherein said connection portion comprises a first connection portion and a second connection portion, said body portion, said first connection portion and said second connection portion enclosing an airflow passage.

12. The heat exchanger fin according to any one of claims 1 to 11, further comprising a first perforation group and a second perforation group, a part of the plurality of perforations forming the first perforation group, and the remaining part of the plurality of perforations forming the second perforation group, the first perforation group and the second perforation group being arranged at intervals in a width direction of the sheet body, the first perforation group being located between two adjacent projections in the width direction of the sheet body, and the second perforation group being located between two adjacent projections in the width direction of the sheet body.

13. The heat exchanger fin as recited in claim 12, wherein said portion of the plurality of perforations are spaced apart in a length direction of the sheet, said remaining portion of the plurality of perforations are spaced apart in a length direction of the sheet, said portion of the plurality of perforations are spaced apart from said remaining portion of the plurality of perforations in a width direction of the sheet, and said portion of the plurality of perforations are staggered from said remaining portion of the plurality of perforations in a length direction of the sheet.

14. A heat exchanger, comprising: a heat exchange tube and a heat exchanger fin as recited in any one of claims 1 to 13.

15. An air conditioner characterized by comprising the heat exchanger of claim 14.