CN221123136U - Window turbulence fin, heat exchanger and air conditioner - Google Patents

Abstract

The utility model discloses a windowing turbulent fin, a heat exchanger and an air conditioner, relates to the technical field of fin heat exchangers, and aims to provide a windowing turbulent fin which is used for improving the turbulent effect of the fin, not remarkably improving the overall wind resistance of the fin and not remarkably reducing the strength of the fin. The window turbulence fin comprises a fin body, wherein a through hole and a window structure for generating turbulence are arranged on the fin body. The window opening structure comprises a triangular notch and a triangular fin protruding relative to the side face of the fin body, and one side edge of the triangular fin is connected with one side edge of the triangular notch. The triangular fin is inclined to the side face of the fin body, and at least part of the triangular fin covers the triangular notch to form a window facing to one side. The utility model realizes the windowing turbulent fin with good turbulent effect, low wind resistance and high strength through arranging the triangular windowing structure.

Description

Window turbulence fin, heat exchanger and air conditioner

Technical Field

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

Background

With the improvement of living standard of people, requirements on office environment and living environment are higher and higher, and refrigerating equipment such as air conditioners and the like are also developed. Among them, a heat exchanger is a common component used in an air conditioning system, and is classified into a condenser and an evaporator according to its functions. In order to improve the heat exchange performance of the heat exchanger, fins are generally disposed in the heat exchanger.

In the fin structure of the existing heat exchanger, the fin structure is classified into flat fins, windowed fins, corrugated fins and the like. The current windowing fins are generally of a slicing type or shutter type windowing structure, although the frosting period of the windowing fins is relatively short, turbulence can be generated through the windowing structure, and then the heat exchange effect is optimized, the heat exchange effect of the slicing type windowing structure on the windowing fins is improved less, the shutter type windowing structure enables the overall wind resistance of the windowing fins to be large, and the local strength among the windowing structures of the fins is obviously reduced.

In view of the above, it is necessary to provide a fenestration fin which has a remarkable heat exchange effect improvement, a small wind resistance improvement, and a high fin strength.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide the windowed turbulent fin which has good turbulent effect and small overall wind resistance and does not obviously reduce the overall or local strength of the fin.

The technical scheme of the utility model provides a windowing turbulent fin which comprises a fin body, wherein a through pipe hole and a windowing structure for generating turbulent flow are arranged on the fin body;

The window opening structure comprises a triangular notch and a triangular fin protruding relative to the side surface of the fin body, wherein one side edge of the triangular fin is connected with one side edge of the triangular notch;

The triangular fin is inclined to the side face of the fin body, and at least part of the triangular fin covers the triangular notch to form a window facing to one side.

In one optional technical scheme, the projection of the vertex of the triangular fin to the side surface of the fin body is located in the triangular notch.

In one optional technical scheme, an included angle between the triangular fin and the side surface of the fin body is 45 degrees.

In one optional technical scheme, the fin body is provided with a plurality of windowing structures,

The directions of the windows of the plurality of window structures are the same;

Or the directions of the windows among a plurality of the window structures are different.

In one optional technical scheme, the plurality of windowing structures are uniformly distributed on the fin body, and the plurality of windowing structures are distributed in a rectangular array.

In one optional solution, in the array of windowing structures, the directions of the windows of the windowing structures in any two adjacent columns or two rows are the same or opposite.

In one optional technical scheme, the fin body comprises an aluminum foil body, and a graphene coating is coated on the surface of the fin body.

The technical proposal of the utility model also provides a heat exchanger which comprises a heat exchanger body, a heat transfer pipe and the windowing turbulent fin according to any one of the technical proposal,

The heat transfer pipe and the windowing turbulent fin are arranged in the heat exchanger body,

The heat transfer tube passes through the tube penetrating holes on the fin body.

In one optional technical scheme, two ends of the heat transfer pipe are respectively provided with a refrigerant inlet and a refrigerant outlet, the refrigerant inlet is close to the leeward side of the heat exchanger body, the refrigerant outlet is close to the windward side of the heat exchanger body, and the level of the refrigerant inlet is lower than that of the refrigerant outlet.

The technical scheme of the utility model also provides an air conditioner, which comprises the heat exchanger in any one of the technical schemes.

By adopting the technical scheme, the method has the following beneficial effects:

According to the window turbulence fin, the heat exchanger and the air conditioner, the triangular window structure is arranged on the fin body, the window structure is composed of the triangular notch and the triangular fin, part of air flow can pass through the triangular notch to pass through the fin body, part of air flow collides with the triangular fin, the triangular fin is used for conducting flow to a certain extent, turbulence is generated among the fins, contact time of the air flow among the fins is obviously improved, and heat transfer performance and energy utilization rate of the window turbulence fin are improved.

The triangular fin structure and the tilting form the triangular fin structure, so that the area of the triangular fin bulge relative to the existing windowing structure is smaller, and the wind resistance increment of the windowing structure to the whole fin can be effectively reduced.

According to the windowing turbulent fin, the heat exchanger and the air conditioner, the windowing structure is triangular, and compared with the rectangular structure in the prior art, the triangular notch is distributed on the fin body, so that a strip structure with smaller local width in the louvered windowing structure can not appear. The setting of triangle-shaped breach and triangle-shaped fin phase-match, the processing of being convenient for, the condition that local intensity is too little appears in the fin can be avoided to the triangle-shaped breach simultaneously for the setting of windowing structure is less to the influence of the bulk strength of fin. Through setting up triangle-shaped's windowing structure, under the condition that the vortex effect of fin is showing, the fin durability is influenced less, and intensity reduction is less can effectively reduce the damage rate of fin in transportation and storage process.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. In the figure:

fig. 1 is a schematic perspective view of a fin for a window according to an embodiment of the present utility model;

Fig. 2 is a schematic front structural view of a fin for a windowing spoiler according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a first side of a fin according to an embodiment of the present utility model;

FIG. 4 is a schematic second side view of a fin according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an inner fin structure of a heat exchanger according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a fin front heat transfer tube connection according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a fin backside heat transfer tube connection provided in an embodiment of the present utility model;

Reference numeral control table:

1. A fin body; 11. penetrating the pipe hole; 12. a windowing structure; 121. triangular notch; 122. triangular fin; 123. opening a window; 2. a heat transfer tube.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 4, the windowed spoiler fin according to an embodiment of the present utility model includes a fin body 1, and a tube hole 11 and a windowed structure 12 for generating spoiler are disposed on the fin body 1. The window structure 12 includes a triangular notch 121 and a triangular fin 122 protruding from a side surface of the fin body 1, wherein one side of the triangular fin 122 is connected to one side of the triangular notch 121. The triangular fin 122 is inclined to the side surface of the fin body 1, and the triangular fin 122 at least partially covers the triangular notch 121 to form a window 123 facing to one side.

In the present utility model, the fenestration 12 is primarily configured to create turbulence between the fins to increase the time that the gas stays on the fins. In practical applications, it is generally necessary to laminate a plurality of fin bodies 1 so that the refrigerant inside the heat transfer tube connected to the fin bodies 1 is sufficiently heat-exchanged by the air passing between the fin bodies 1 and the fins, and after the lamination of the plurality of fin bodies 1, the air flow flows through the gaps between the fin bodies 1.

According to the utility model, the triangular window opening structure 12 is arranged, so that the gas flowing through the triangular window opening structure can encounter resistance, unstable flow and other phenomena in the moving process, and the flowing direction and speed are changed, so that the gas used for heat exchange with the fin body 1 generates turbulent flow when passing through the gaps between the fin bodies 1. The turbulent flow can effectively increase the contact area of the air flow and the surface of the fins, so that the air flow fully contacts the fins, the flow path of the air flow is prolonged, the loss of the air flow momentum is increased, the residence time of the air flow between the fin bodies 1 is longer, and the heat transfer performance of the fin bodies 1 and the utilization rate of energy sources are obviously improved.

In the utility model, the fin body 1 can be a fin in a heat exchanger, the whole of the fin body 1 is in a plate-shaped structure, a plurality of through holes 11 for installing heat transfer pipes are formed in the fin body 1, in order to increase the contact area of the heat transfer pipes and the fin body 1 and improve the time of a refrigerant passing through the heat transfer pipes, the plurality of fin bodies 1 are arranged side by side, and the heat transfer pipe plate is bent for a plurality of times, so that the middle part of the heat transfer pipe can penetrate through all the fin bodies 1 for a plurality of times, and in order to improve the heat transfer efficiency, a plurality of groups of heat transfer pipes can be arranged in the fin, so that the plurality of through holes 11 are formed in the fin body 1.

The fin body 1 is mainly used for exchanging heat with air to accelerate cooling of refrigerants in a heat transfer tube passing through the tube passing hole 11, and in order to further improve heat exchange efficiency, the utility model is provided with at least one windowing structure 12 on the fin body 1 under the condition of not increasing the number of fins and the volume of the fins, and through arranging the windowing structure 12 penetrating through the fin body 1, air flow flowing through the fin body 1 can pass through the windowing structure 12 so as to penetrate through the fin body 1, thereby realizing turbulent flow of the air flow, increasing the actual contact area of the air flow and the fin body 1, and being capable of increasing the contact time of the air flow and the fin body 1.

In order to improve the actual guiding effect of the windowing structure 12 on the flowing air flow and obtain a better turbulence effect, the windowing structure 12 is provided with a triangular notch 121 and a triangular fin 122, the triangular notch 121 is a triangular notch 121 penetrating through the fin body 1, the triangular fin 122 is a triangular block structure matched with the triangular notch 121, the triangular fin 122 is connected with one side of the triangular notch 121, and the connection mode between the triangular fin 122 and the triangular notch 121 can be fixed connection, detachable connection or movable connection. In the triangular window structure 12, the triangular fin 122 is turned up relatively far from the corner of the side connected with the triangular notch 121, that is, the triangular fin 122 is turned up around the whole of the connected side. After the triangular fin 122 is tilted upwards, the cooling air flow flowing through the fin body 1 can be blocked, a certain guiding effect is generated on the air flow, turbulence is generated on the air flow, the triangular notch 121 can enable the air generated by turbulence to pass through the fin body 1, the air flow direction is more complicated, the momentum of the air flow can be further reduced in the complicated air flow direction, the time of the air flow passing through the fin body 1 is prolonged, and the air flow and the fin body 1 are fully utilized for heat exchange after full contact. In order to improve the overall symmetry of the triangular fin 122, the triangular fin 122 is preferably in the shape of an isosceles triangle or an equilateral triangle, although other triangular structures may be selected, and will not be described in detail herein.

As shown in fig. 1 and 2, the triangular fin 122 is inclined to the side of the fin body 1 such that the triangular notch 121 at least partially covers the triangular notch, and the triangular fin 122 and the triangular notch 121 are combined to form an open window 123 opening toward one side.

In this embodiment, in order to form the opening 123 facing to one side between the triangular fin 122 and the triangular notch 121, the lifting angle of the triangular fin 122, that is, the included angle between the triangular fin 122 and the side surface of the fin body 1, is preferably an acute angle or a right angle, and the direction of the opening structure 12 is specifically the opposite direction of the connection side between the triangular fin 122 and the triangular notch 121. When the included angle between the triangular fin 122 and the side surface of the fin body 1 is an acute angle, the triangular fin 122 is more beneficial to blocking or pressing down the air flow, the guiding effect of the triangular fin 122 on the air flow is obvious, the air flow flowing through is more prone to generate turbulent flow, and the overall increase of wind resistance for the fin body 1 is small. Of course, if the lifting angle of the triangular fin 122 is an obtuse angle, and the effect of generating turbulence is also achieved, then the window opening structure 12 of the triangular fin 122 with the lifting angle being an obtuse angle should also belong to one of the preferred embodiments in the technical solution of the present utility model, and should fall within the protection scope of the present utility model.

In summary, according to the fin for opening a window according to the present utility model, by providing the triangular opening structure 12 on the fin body 1, the opening structure 12 is composed of the triangular notch 121 and the triangular fin 122, and a part of the airflow may pass through the triangular notch 121 to pass through the fin body 1, and collide with the triangular fin 122, and the airflow is guided to a certain extent by the triangular fin 122, so that turbulence is generated between the fins, so that the contact time of the airflow between the fins is significantly improved, and further the heat transfer performance and the energy utilization rate of the fin for opening a window are improved.

The window spoiler fin provided by the utility model has the triangular window structure 12, wherein the side edge of the triangular fin 122 is connected with the side edge of the triangular notch 121, one corner of the triangular fin 122 is tilted upwards relative to the fin body 1, and compared with the rectangular window structure 12 in the prior art, the triangular fin 122 has the structure and tilting form, so that the protruding area of the triangular fin 122 is smaller relative to the existing window structure 12, and the wind resistance increment of the window structure 12 to the whole fin can be effectively reduced.

According to the windowing spoiler fin provided by the utility model, the windowing structure 12 is arranged into the triangle shape, and compared with the rectangular structure in the prior art, the triangular notch 121 does not have a strip structure with smaller local width in the louvered windowing structure 12 when the triangular notches 121 are distributed on the fin body 1. The setting of triangle-shaped breach 121 and triangle-shaped fin 122 assorted, the processing of being convenient for, triangle-shaped breach 121 can avoid the fin to appear the too little condition of local intensity simultaneously for the setting of windowing structure 12 is less to the influence of the bulk strength of fin. Through setting up triangle-shaped's windowing structure 12, under the condition that the vortex effect of fin is showing, the fin durability is influenced less, and intensity reduction is less can effectively reduce the damage rate of fin in transportation and storage process.

In one embodiment, as shown in fig. 2, the projection of the vertex of the triangular fin 122 to the side of the fin body 1 is located in the triangular notch 121.

In this embodiment, when the vertex of the triangular fin 122 is perpendicularly projected onto the side surface of the fin body 1, the projection of the vertex of the triangular fin 122 is located in the triangular notch 121, that is, the lifting angle of the triangular fin 122 is defined as an acute angle, and the length of the triangular fin 122 is also smaller than or equal to the length of the triangular notch 121, or the length of the triangular fin 122 may be longer than the length of the triangular notch on the premise that the projection of the vertex of the triangular fin 122 does not exceed the range of the triangular notch 121. Preferably, for convenience of processing and avoiding the generation of excessive production waste, the triangular fins 122 and the triangular notches 121 are identical in shape and size, so that during the production processing, only two sides of the triangular notches 121 need to be directly cut off, and the cross section is lifted upwards along the cut, so that the corresponding triangular fins 122 are formed.

In one embodiment, as shown in fig. 3 and 4, the angle between the triangular fin 122 and the side of the fin body 1 is 45 °.

In this embodiment, when the included angle between the triangular fin 122 and the fin body 1 is set to 45 °, the comprehensive performance of the windowing structure 12 is excellent, and meanwhile, the air flow flowing through the fin body 1 is blocked and guided obviously, that is, the turbulence performance is strong, and the increase amount of the overall wind resistance to the fin body 1 is small.

In one embodiment, the fin body 1 is provided with a plurality of windowing structures 12, and the directions of the fenestrations 123 of the plurality of windowing structures 12 are the same.

In this embodiment, as shown in fig. 2, a plurality of windowing structures 12 are disposed on the fin body 1, and the windowing structures 12 with the same directions of the plurality of windowing structures 123 are mutually matched, so that the blocking and guiding effects of the fin on the air flow can be effectively improved, the arrangement of the plurality of windowing structures 12 can complicate the air flow direction more effectively, and the air flow flowing through the fin body 1 is more facilitated to generate turbulence. The plurality of window structures 12 may be uniformly distributed or irregularly distributed on the fin body 1.

In another embodiment, the direction of the fenestration 123 is different between the plurality of fenestration structures 12.

In this embodiment, the directions of the windows 123 between the plurality of window structures 12 may be regularly distributed or irregularly distributed.

In one embodiment, as shown in fig. 1 and 2, the plurality of fenestration structures 12 are uniformly distributed on the fin body 1, and the plurality of fenestration structures 12 are distributed in a rectangular array.

In this embodiment, the window structure 12 is distributed on the fin body 1 after avoiding the tube holes 11 to form a uniform rectangular array structure, the rectangular array distribution has an obvious row-column arrangement structure, the design and the manufacture of the die are easier, the window structure 12 is easier to process, and further the production quality stability of the fin is improved.

In one embodiment, the fenestration structures 12 are grouped in an array with the fenestrations 123 facing the same plurality of fenestration structures 12; the orientation of fenestrations 123 between any two sets of fenestration structures 12 is the same or opposite. Further, in the array of fenestration structures 12, the fenestrations 123 of the fenestration structures 12 in any two adjacent columns or rows are oriented the same or opposite.

In this embodiment, as shown in fig. 1 and 2, in the array formed by the fenestration structures 12, the fenestration structures 12 are arranged in opposite directions so that the fenestration openings 123 face the same row or column, that is, the fenestration structures 12 are arranged in groups, and the purpose of the fenestration structures 12 is to form opposite flow paths, where the formation of the opposite flow paths is beneficial to guiding the air flow to at least 2 opposite directions, so as to significantly improve the turbulence effect, further prolong the residence time of the air flow between the fins, and improve the contact time of the air flow with the surface of the fin body 1. The window group may be formed by one row or one column of window structures 12, or may be formed by multiple rows or multiple columns of window structures 12, and of course, the group of window structures 12 may also be formed by multiple window structures 12 with windows 123 facing the same direction but not one row or one column of window structures 12 in position ordering, for example, one column of window structures 123 in oblique ordering faces the same window structure 12, or may be formed by multiple window structures 12 with windows 123 facing the same direction but irregularly ordered. The two window structures 12 are oriented in the same or opposite directions, so that opposite flow paths can be formed between the window structures 12, the actual flow paths of the air flow are led to be complicated, and the probability of turbulence generation and the turbulence effect are increased. However, in order to avoid touching each other between the fins, the protruding directions of the triangular fins 122 in all the fenestration structures 12 are the same. The total number of fenestration groups in different fenestration 123 directions may or may not be the same. Since the function of the fenestration 12 is to block the airflow to increase the complexity of the airflow direction in the present utility model, the number and orientation of the fenestration 12 need not be excessively limited, and the present embodiment is intended to provide a preferred embodiment thereof, and other simple changes in shape, combination and arrangement based on the present utility model are also included in the technical solution of the present utility model, and will not be described in any greater detail herein.

In one embodiment, the fin body 1 comprises an aluminum foil body, and the surface of the fin body 1 is coated with a graphene coating.

In this embodiment, the fin body 1 includes an aluminum foil body, that is, the fin body 1 is partially or entirely formed of an aluminum foil body, so as to improve the heat exchange efficiency of the fin body 1 by the property of the aluminum foil material, and by coating the outer surface of the fin body 1 with a graphene coating, the heat exchange performance of the fin body 1 is significantly improved. Preferably, in the embodiment, the copper pipe with small pipe diameter, particularly 2/8 inch copper pipe specification is adopted to increase the distribution density of the copper pipe, and the heat loss can be effectively reduced by combining an aluminum foil material and a graphene coating coated on the surface, so that the high efficiency and energy saving of the heat exchange process are realized. And the aluminum foil material is matched with the graphene coating, so that the fin body 1 has higher strength and corrosion resistance after being molded, and the fin body 1 can be ensured to stably run for a long time.

An embodiment of the present utility model provides a heat exchanger, which includes a heat exchanger body 3, a heat transfer tube, and the windowing spoiler fins described in any of the foregoing embodiments, wherein the heat transfer tube 2 and the windowing spoiler fins are disposed in the heat exchanger body 3, and the heat transfer tube 2 passes through a tube hole 11 on the fin body 1.

In this embodiment, all the fins in the heat exchanger body 3 may be the windowed spoiler fins described in any of the foregoing embodiments, or some of the windowed spoiler fins described in any of the foregoing embodiments may be the windowed spoiler fins described in any of the foregoing embodiments, and another of the windowed spoiler fins may be the fins in the prior art. For example, the window turbulence fins and other fins are arranged at intervals, and a certain technical effect of generating turbulence can be achieved between the window turbulence fins and other fins so as to improve heat exchange efficiency.

The heat exchanger body 3 is provided with a cooling device for generating cooling air flow and blowing the cooling air flow to the fins, as shown in fig. 5, a plurality of fin bodies 1 are stacked, and when the heat exchanger is installed, the distance between the fin bodies 1 is greater than or equal to the height of the triangular fin 122, so that interference collision between the triangular fin 122 and the adjacent fin bodies 1 is avoided. In order to avoid the condition of mutual interference collision between adjacent fin bodies 1, the protruding directions of the triangular fins 122 are the same, after the fin bodies 1 with the windowing structures 12 are installed, gaps between the fin bodies 1 have a strong blocking effect on inflowing cooling air flow, so that the air flow can generate a turbulent flow effect, the total time of the cooling air flow passing through the gaps between the fin bodies 1 is prolonged, the cooling air flow is fully utilized for heat exchange, and further the heat transfer efficiency and the energy utilization rate are improved.

In one preferred embodiment, two ends of the heat transfer tube are respectively provided with a refrigerant inlet and a refrigerant outlet, the refrigerant inlet is close to the leeward side of the heat exchanger body 3, the refrigerant outlet is close to the windward side of the heat exchanger body 3, and the level of the refrigerant inlet is lower than that of the refrigerant outlet.

In this embodiment, as shown in fig. 6 and 7, which are a specific winding manner of the heat transfer tube 2, the four parallel heat transfer tubes 2 are all the same in winding manner in the fins, and the direction from the refrigerant inlet to the refrigerant outlet is from bottom to top, because air may remain in the heat transfer tube 2, the heat transfer tube 2 structure in this embodiment can make the refrigerant move from bottom to top after entering the heat transfer tube 2, so as to extrude the air with lower density relative to the refrigerant upwards, and avoid the air remaining in the heat transfer tube 2 from affecting the normal operation of the heat transfer tube 2. In addition, based on the design principle of the heat exchanger, the refrigerant flows from the leeward side to the windward side, and the heat exchange airflow flows from the windward side to the leeward side.

Specifically, in this embodiment, the heat exchanger is a six-tube side heat exchanger, that is, the heat transfer tube 2 is coiled and then penetrates through the fins six times in total, in this embodiment, as shown in fig. 6 and 7, the specific connection mode of the heat transfer tube 2 and the fins is that the end portion of the heat transfer tube 2 enters from the tube penetrating hole 11 below the fin body 1, then penetrates from the parallel tube penetrating hole 11 after being bent at the rear, penetrates from the tube penetrating hole 11 above obliquely after being bent at the rear again, penetrates from the parallel tube penetrating hole 11 after being bent at the rear again, enters from the tube penetrating hole 11 above obliquely after being bent at the rear again, and finally penetrates from the tube penetrating hole 11 above another obliquely after being bent at the rear. The refrigerant inlet and the refrigerant outlet are both positioned on the front side surface. The plurality of heat transfer tubes 2 are arranged from bottom to top, and the connection mode of the other heat transfer tubes 2 and the fins also follows the six-tube side connection mode from bottom to top, so that the level of the refrigerant inlet is ensured to be lower than that of the refrigerant outlet.

An embodiment of the present utility model provides an air conditioner, which includes the heat exchanger according to any one of the foregoing embodiments.

The heat exchanger in the air conditioner adopts the windowing turbulent fin, so that the whole operation of the air conditioner is energy-saving and efficient.

The above technical schemes can be combined according to the need to achieve the best technical effect.

The foregoing is only illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.

Claims (10)

1. The windowing turbulent fin is characterized by comprising a fin body (1), wherein a through pipe hole (11) and a windowing structure (12) for generating turbulent flow are arranged on the fin body (1);

The window opening structure comprises a triangular notch (121) and a triangular fin (122) protruding relative to the side surface of the fin body, wherein one side edge of the triangular fin (122) is connected with one side edge of the triangular notch (121);

The triangular fin (122) is inclined to the side surface of the fin body (1), and the triangular fin (122) at least partially covers the triangular notch (121) to form a window opening (123) facing to one side.

2. The windowing spoiler fin according to claim 1, wherein a projection of an apex of the triangular fin (122) to a side of the fin body (1) is located in the triangular notch (121).

3. The windowing spoiler fin according to claim 2, characterized in that the angle between the triangular fin (122) and the side face of the fin body (1) is 45 °.

4. A fenestration fin according to claim 3, characterized in that the fin body (1) is provided with a plurality of fenestration structures (12),

The directions of the windows (123) of the plurality of window structures (12) are the same;

Or the directions of the windows (123) between a plurality of the window structures (12) are different.

5. The windowed fin according to claim 4, wherein a plurality of the windowed structures (12) are uniformly distributed on the fin body (1), and a plurality of the windowed structures (12) are distributed in a rectangular array.

6. The fenestration fin of claim 5 wherein the fenestration (123) of the fenestration structure (12) in any adjacent two columns or rows in the array of fenestration structures (12) are oriented the same or opposite.

7. The fenestration fin according to any one of claims 1-6, wherein the fin body (1) comprises an aluminum foil body, the surface of the fin body (1) being coated with a graphene coating.

8. A heat exchanger, characterized by comprising a heat exchanger body (3), a heat transfer tube (2) and a windowing spoiler fin according to any one of claims 1-7;

the heat transfer tube (2) and the windowing turbulent fin are arranged in the heat exchanger body (3);

The heat transfer tube (2) passes through the tube penetrating holes (11) on the fin body (1).

9. The heat exchanger according to claim 8, wherein the heat transfer tube (2) has two ends, a refrigerant inlet and a refrigerant outlet, respectively, the refrigerant inlet being adjacent to the leeward side of the heat exchanger body (3), the refrigerant outlet being adjacent to the windward side of the heat exchanger body (3), and the refrigerant inlet having a lower level than the refrigerant outlet.

10. An air conditioner comprising the heat exchanger according to claim 8 or 9.