CN220061935U - Fin, heat exchanger assembly and air conditioner indoor unit - Google Patents

Abstract

The utility model discloses a fin, a heat exchanger assembly and an air conditioner indoor unit, wherein the fin is divided into a windward side area and a leeward side area in the width direction of the fin, the windward side area is positioned on the windward side of the leeward side area, at least one of the windward side area and the leeward side area is provided with through holes for a heat exchange tube to pass through, when the windward side area or the leeward side area is provided with a plurality of through holes, the through holes are arranged at intervals along the length direction of the fin, the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area is L, at least one of the windward side area and the leeward side area is provided with a blank area without the through holes, and the length of the blank area along the length direction of the fin is larger than L. According to the fin disclosed by the utility model, the processing process of the fin is simpler, the die cost can be reduced, and the manufacturing cost of the fin is lower.

Description

Fin, heat exchanger assembly and air conditioner indoor unit

Technical Field

The utility model mainly relates to the technical field of air treatment equipment, in particular to a fin, a heat exchanger assembly and an air conditioner indoor unit.

Background

With the gradual increase of users who choose to use the air conditioner, the users have different requirements on energy efficiency, price, aesthetic property and the like of the air conditioner, and how to adjust the manufacturing cost of the air conditioner becomes a problem to be solved.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the fin, the processing process of the fin is simpler, the die cost can be reduced, and the manufacturing cost of the fin is lower.

The invention also provides a heat exchanger, which comprises the fin.

The invention also provides a heat exchanger assembly, which comprises the heat exchanger.

The invention also provides an air conditioner indoor unit which comprises the heat exchanger component.

According to the fin of the embodiment of the invention, in the width direction of the fin, the fin is divided into a windward side region and a leeward side region, the windward side region is located on the windward side of the leeward side region, at least one of the windward side region and the leeward side region is provided with a through hole for a heat exchange tube to pass through, when the windward side region or the leeward side region is provided with a plurality of through holes, the through holes are arranged at intervals along the length direction of the fin, the minimum distance between any two adjacent through holes on the windward side region and any two adjacent through holes on the leeward side region is L, and at least one of the windward side region and the leeward side region is provided with a blank region which is not provided with the through holes, and the length of the blank region along the length direction of the fin is larger than L.

According to the fin provided by the embodiment of the invention, the through holes for the heat exchange tubes to pass through are formed in at least one of the windward side area and the leeward side area in the width direction of the fin, when the windward side area or the leeward side area is provided with the through holes, the through holes are arranged at intervals along the length direction of the fin, so that the heat exchange tubes can be arranged at intervals along the length direction of the fin, heat exchange media in the heat exchange tubes can be dispersed when heat or cold energy is transferred to the fin, the temperature on the fin is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area along the length direction of the fin is larger than the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area, the length of the blank area along the length direction of the fin is larger, the distance between the heat exchange tubes along the length direction of the fin is larger, the air flow entering the indoor unit of the air conditioner can exchange heat with the fin better, the fin can have better heat exchange effect, the through holes are not formed in the blank area, the die inner cores used for arranging the through holes in the blank area can be detached, the processing process of the fin is simpler, and the die cost can be reduced.

In some embodiments of the invention, the windward side region and the leeward side region each have the through hole, and only the leeward side region has the blank region.

In some embodiments of the invention, the void region is one continuous region or a plurality of regions spaced apart along the length of the fin.

In some embodiments of the invention, only the windward side region has the through-hole, only the leeward side region has the blank region and the blank region is one continuous region.

In some embodiments of the invention, the leeward region and the windward region each have the through-hole, and only the windward region has the blank region.

In some embodiments of the invention, the void region is one continuous region or a plurality of regions spaced apart along the length of the fin.

In some embodiments of the invention, only the leeward side region has the through-hole, only the windward side region has the blank region and the blank region is one continuous region.

In some embodiments of the invention, the windward side region and the leeward side region each have the blank region.

In some embodiments of the invention, only the leeward region has the through-holes, the void on the leeward region being one continuous region or a plurality of regions spaced apart along the length of the fin, the void on the windward region being one continuous region; or, only the windward side region has the through hole, the blank region on the windward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin, and the blank region on the leeward side region is one continuous region; or, the windward side region and the leeward side region each have the through hole, the blank region on the windward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin, and the blank region on the leeward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin.

In some embodiments of the present invention, when the windward side region is provided with a plurality of through holes, a bridge piece is provided between at least two adjacent through holes on the windward side region; or when the leeward region is provided with a plurality of through holes, a bridge piece is arranged between at least part of two adjacent through holes on the leeward region; or, along the length direction of the fin, at least part of the blank area is provided with a bridge piece; or, the blank area is a plane complete area.

The heat exchanger comprises the heat exchange tube and the fins. The fins are a plurality of fins which are spaced along the thickness direction of the fins; the heat exchange tubes are arranged in the through holes of the fins in a penetrating mode.

According to the heat exchanger provided by the embodiment of the invention, the through holes for the heat exchange tubes to pass through are formed in at least one of the windward side area and the leeward side area in the width direction of the fin, when the windward side area or the leeward side area is provided with the through holes, the through holes are arranged at intervals along the length direction of the fin, so that the heat exchange tubes can be arranged at intervals along the length direction of the fin, heat exchange media in the heat exchange tubes can be dispersed when heat or cold energy is transferred to the fin, the temperature on the fin is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area along the length direction of the fin is larger than the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area, the length of the blank area along the length direction of the fin is larger, the distance between the heat exchange tubes along the length direction of the fin is larger, the air flow entering the indoor unit of the air conditioner can exchange heat with the fin better, the fin can have better heat exchange effect, the through holes are not formed in the blank area, the die inner cores used for arranging the through holes in the blank area can be detached, the processing process of the fin is simpler, the die cost can be reduced, and the manufacturing cost of the heat exchanger is lower.

The heat exchanger assembly comprises the heat exchanger. The heat exchangers are multiple, and the multiple heat exchangers are sequentially connected along the length direction of the fins.

According to the heat exchanger assembly provided by the embodiment of the invention, the through holes for the heat exchange tubes to pass through are formed in at least one of the windward side area and the leeward side area in the width direction of the fins, when the windward side area or the leeward side area is provided with the through holes, the through holes are arranged at intervals along the length direction of the fins, so that the heat exchange tubes can be arranged at intervals along the length direction of the fins, heat exchange media in the heat exchange tubes can be dispersed when heat or cold energy is transferred to the fins, the temperature on the fins is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area along the length direction of the fin is larger than the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area, the length of the blank area along the length direction of the fin is larger, the distance between the heat exchange tubes along the length direction of the fin is larger, the air flow entering the indoor unit of the air conditioner can exchange heat with the fin better, the fin can have better heat exchange effect, the through holes are not formed in the blank area, the die inner cores used for arranging the through holes in the blank area can be detached, the processing process of the fin is simpler, the die cost can be reduced, the manufacturing cost of the heat exchanger is lower, and the manufacturing cost of the heat exchanger assembly is lower.

In some embodiments of the invention, the plurality of heat exchangers includes a first heat exchanger and a second heat exchanger, one end of the first heat exchanger along the length direction of the fin is connected to one end of the second heat exchanger along the length direction of the fin, and the first heat exchanger and the second heat exchanger form a semi-enclosure shape.

In some embodiments of the present invention, in a direction from one end of the first heat exchanger to the other end of the second heat exchanger, the first heat exchanger sequentially includes a first straight line segment, an arc segment, and a second straight line segment, the first straight line segment and the second heat exchanger are angled with each other, the arc segment protrudes toward a side facing away from the second heat exchanger, and an end of the second straight line segment facing away from the arc segment extends obliquely toward a side of the second heat exchanger.

The indoor unit of the air conditioner comprises the heat exchanger assembly.

According to the indoor unit of the air conditioner, through the arrangement of the through holes for the heat exchange tubes to pass through in at least one of the windward side area and the leeward side area in the width direction of the fins, when the windward side area or the leeward side area is provided with the through holes, the through holes are arranged at intervals along the length direction of the fins, so that the heat exchange tubes can be arranged at intervals along the length direction of the fins, heat exchange media in the heat exchange tubes can be dispersed when heat or cold energy is transferred to the fins, the temperature on the fins is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area along the length direction of the fin is larger than the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area, the length of the blank area along the length direction of the fin is larger, the distance between the heat exchange tubes along the length direction of the fin is larger, the air flow entering the air conditioner indoor unit can exchange heat with the fin better, the fin can have better heat exchange effect, the through holes are not formed in the blank area, the inner core of the die used for arranging the through holes in the blank area can be removed, the processing process of the fin is simpler, the die cost can be reduced, the manufacturing cost of the heat exchanger is lower, the manufacturing cost of the heat exchanger assembly is lower, and the manufacturing cost of the air conditioner indoor unit is lower.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a heat exchanger assembly according to a first embodiment of the present utility model;

fig. 2 is a front view of a heat exchanger assembly according to a second embodiment of the present utility model;

FIG. 3 is a front view of a heat exchanger assembly according to a third embodiment of the present utility model;

fig. 4 is a front view of a heat exchanger assembly according to a fourth embodiment of the present utility model.

Reference numerals:

100. a heat exchanger assembly;

1. a windward side region; 11. a through hole; 12. blank areas;

2. a leeward region;

3. a first heat exchanger; 31. a first straight line segment; 32. an arc section; 33. a second straight line segment;

4. a second heat exchanger;

5. a fin; 51. a first heat exchanger fin; 511. a bridge piece; 52. and a second heat exchanger fin.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The fin 5 according to the embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1, according to the fin 5 of the embodiment of the present invention, in the width direction of the fin 5, the fin 5 is divided into a windward side region 1 and a leeward side region 2, the windward side region 1 being located on the windward side of the leeward side region 2, at least one of the windward side region 1 and the leeward side region 2 having a through hole 11 for passing a heat exchange tube therethrough, it being understood that the windward side region 1 has a through hole 11 for passing a heat exchange tube therethrough; or leeward region 2 has a through-hole 11 for the heat exchange tubes to pass through; or the windward side region 1 and the leeward side region 2 each have a through hole 11 for the heat exchange tube to pass through.

When the heat exchange tube is provided with the through holes 11 for the heat exchange tube to pass through, the heat exchange medium in the heat exchange tube positioned in the windward side area 1 transfers heat or cold to the fins 5, and air flow entering the air conditioner indoor unit can flow through the fins 5 and exchange heat with the fins 5, so that heat exchange of the air flow entering the air conditioner indoor unit is realized; when only the leeward side region 2 is provided with the through holes 11 for the heat exchange tubes to pass through, the heat exchange medium in the heat exchange tubes positioned in the leeward side region 2 transfers heat or cold to the fins 5, and the air flow entering the air conditioner indoor unit can flow through the fins 5 and exchange heat with the fins 5, so that the heat exchange of the air flow entering the air conditioner indoor unit is realized; when the windward side area 1 and the leeward side area 2 are provided with the through holes 11 for the heat exchange pipes to pass through, the heat exchange medium in the heat exchange pipes in the windward side area 1 and/or the leeward side area 2 transfers heat or cold to the fins 5, and the air flow entering the air conditioner indoor unit can flow through the fins 5 and exchange heat with the fins 5, so that heat exchange of the air flow entering the air conditioner indoor unit is realized.

When the windward side area 1 or the leeward side area 2 is provided with the through holes 11, the through holes 11 are arranged at intervals along the length direction of the fins 5, so that a plurality of heat exchange pipes can be arranged at intervals along the length direction of the fins 5, and heat exchange media in the heat exchange pipes can be dispersed when transferring heat or cold to the fins 5, so that the temperature on the fins 5 is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good.

Along the length direction of the fin 5, the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2 is L, the minimum distance between any two adjacent through holes 11 on the windward side area 1 is smaller than the minimum distance between any two adjacent through holes 11 on the leeward side area 2, at least one of the windward side area 1 and the leeward side area 2 is provided with a blank area 12 without the through holes 11, and the length of the blank area 12 along the length direction of the fin 5 is larger than L.

It will be appreciated that in the width direction of the fin 5, the fin 5 is divided into a windward side region 1 and a leeward side region 2, bounded by a dashed line parallel to the length edges of the fin 5, wherein in the width direction of the fin 5, the distance from the dashed line dividing the windward side region 1 and the leeward side region 2 to the windward side edge and the leeward side edge of the fin 5 may be the same. The blank area 12 is located in the leeward side area 2 and/or the windward side area 1, and when the blank area 12 is located in the windward side area 1 and the windward side area 1 is provided with the through holes 11, the blank area 12 and the through holes 11 are arranged along the length direction of the fins 5; when the blank area 12 is located in the leeward side region 2 and the through holes 11 are provided in the leeward side region 2, the blank area 12 and the through holes 11 are arranged along the longitudinal direction of the fin 5. The length of the blank area 12 along the length direction of the fin 5 is larger than the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2, the length of the blank area 12 along the length direction of the fin 5 is larger, the distance between the heat exchange pipes along the length direction of the fin 5 is larger, the air flow entering the air conditioning indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, the through holes 11 are not formed in the blank area 12, the die inner core of the blank area 12 for arranging the through holes 11 can be detached, the processing process of the fin 5 is simpler, and the die cost can be reduced.

According to the fin 5 of the embodiment of the invention, through the through holes 11 for the heat exchange tubes to pass through are formed in at least one of the windward side region 1 and the leeward side region 2 in the width direction of the fin 5, when the windward side region 1 or the leeward side region 2 is provided with the plurality of through holes 11, the plurality of through holes 11 are arranged at intervals along the length direction of the fin 5, so that the plurality of heat exchange tubes are arranged at intervals along the length direction of the fin 5, and the heat exchange medium in the heat exchange tubes can be dispersed when transferring heat or cold to the fin 5, so that the temperature on the fin 5 is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area 12 along the length direction of the fin 5 is larger than the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2, the length of the blank area 12 along the length direction of the fin 5 is larger, the distance between the heat exchange pipes along the length direction of the fin 5 is larger, the air flow entering the air conditioning indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, the through holes 11 are not formed in the blank area 12, the die inner core of the blank area 12 for arranging the through holes 11 can be detached, the processing process of the fin 5 is simpler, and the die cost can be reduced.

In some embodiments of the invention, as shown in fig. 1, both the windward side area 1 and the leeward side area 2 have through holes 11, and only the leeward side area 2 has a blank area 12. It will be appreciated that both the windward side region 1 and the leeward side region 2 may be perforated with heat exchange tubes, only the leeward side region 2 having a blank region 12 where no heat exchange tubes can be perforated. The part without the through holes 11 can be concentrated in the leeward side region 2, so that the assembling position of the heat exchange tube is concentrated when the fins 5 are assembled with the heat exchange tube, and the assembling efficiency of the heat exchanger is high.

Further, as shown in fig. 1 to 4, the blank area 12 is one continuous area or a plurality of areas spaced apart along the length of the fin 5. It can be understood that the blank area 12 is a continuous area along the length direction of the fin 5, so that the area on the fin 5, through which the heat exchange tube cannot be penetrated, is a continuous area, the assembly positions of the heat exchange tube are concentrated when the fin 5 and the heat exchange tube are assembled, and the assembly efficiency of the heat exchanger is high; or along the length direction of the fin 5, the blank areas 12 are a plurality of spaced apart along the length direction of the fin 5, so that the areas on the fin 5, through which the heat exchange tubes cannot be arranged, are spaced apart along the length direction of the fin 5, the areas on the leeward side area 2 on the fin 5, through which the heat exchange tubes can be arranged, are distributed, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have a better heat exchange effect.

In some embodiments of the invention, only the windward side area 1 has a through hole 11, only the leeward side area 2 has a blank area 12 and the blank area 12 is one continuous area. At this time, the windward side area 1 can be penetrated with a certain number of heat exchange tubes, so that the heat exchange effect of the fins 5 can be ensured, and the inner core of the mold for arranging the through holes 11 at the blank area 12 of the leeward side area 2 on the mold for processing the fins 5 can be removed, so that the processing process of the fins 5 is simpler, and the mold cost can be reduced.

In some embodiments of the invention, as shown in fig. 2, both the leeward region 2 and the windward region 1 have through holes 11, and only the windward region 1 has a blank region 12. It will be appreciated that both the leeward region 2 and the windward region 1 may be perforated with heat exchange tubes, only the windward region 1 having a blank region 12 where no heat exchange tubes can be perforated. The part without the through holes 11 can be concentrated in the windward side area 1, so that the assembling positions of the heat exchange tubes are concentrated when the fins 5 and the heat exchange tubes are assembled, and the assembling efficiency of the heat exchanger is high.

Further, as shown in fig. 1 to 4, the blank area 12 is one continuous area or a plurality of areas spaced apart along the length of the fin 5. It can be understood that the blank area 12 is a continuous area along the length direction of the fin 5, so that the area on the fin 5, through which the heat exchange tube cannot be penetrated, is a continuous area, and the assembling position of the heat exchange tube is relatively concentrated when the fin 5 is assembled with the heat exchange tube, so that the assembling efficiency of the heat exchanger is relatively high; or along the length direction of the fin 5, the blank areas 12 are a plurality of spaced apart along the length direction of the fin 5, so that the areas on the fin 5, through which the heat exchange tubes cannot be arranged, are spaced apart along the length direction of the fin 5, the areas on the windward side area 1 of the fin 5, through which the heat exchange tubes can be arranged, are distributed, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have a better heat exchange effect.

In some embodiments of the invention, only the leeward side region 2 has a through hole 11, only the windward side region 1 has a blank region 12 and the blank region 12 is one continuous region. At this time, the leeward side region 2 can be penetrated with a certain number of heat exchange tubes, so that the heat exchange effect of the fins 5 can be ensured, and the inner core of the die for arranging the through holes 11 at the blank region 12 of the windward side region 1 on the processing die of the fins 5 can be removed, so that the processing process of the fins 5 is simpler, and the die cost can be reduced.

In some embodiments of the invention, as shown in fig. 3 and 4, the windward side region 1 and the leeward side region 2 each have a blank area 12. At this time, the windward side area 1 and the leeward side area 2 can both extract certain heat exchange tubes, the area on the fin 5 where the heat exchange tubes cannot be penetrated is scattered, the heat exchange tubes during assembling of the heat exchanger can be reduced on the basis of meeting the heat exchange requirement of the air conditioner indoor unit, the manufacturing cost of the air conditioner indoor unit can be reduced, and the inner cores of the dies used for arranging the through holes 11 at the blank areas 12 of the windward side area 1 and the leeward side area 2 can be removed, so that the processing process of the fin 5 is simpler, and the die cost can be reduced.

Further, as shown in fig. 3 and 4, only the leeward region 2 has the through holes 11, and the blank region 12 on the leeward region 2 is one continuous region or a plurality of regions spaced apart in the longitudinal direction of the fin 5, and the blank region 12 on the windward region 1 is one continuous region; alternatively, only the windward side region 1 has the through holes 11, and the blank region 12 on the windward side region 1 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5, and the blank region 12 on the leeward side region 2 is one continuous region; alternatively, the windward side region 1 and the leeward side region 2 each have a through hole 11, and the blank region 12 on the windward side region 1 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5, and the blank region 12 on the leeward side region 2 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5.

The layout on the fins 5 at this time is as follows.

Layout one

Only the leeward region 2 has the through holes 11, and the blank region 12 on the leeward region 2 is one continuous region or a plurality of regions spaced apart in the longitudinal direction of the fin 5, and the blank region 12 on the windward region 1 is one continuous region. It can be understood that only the leeward region 2 has the through hole 11, the blank region 12 on the leeward region 2 is a continuous region, the blank region 12 on the windward region 1 is a continuous region, at this time, only the leeward region 2 can be perforated with a certain number of heat exchange tubes, the heat exchange effect of the fins 5 can be ensured, and the region of the fins 5, which cannot be perforated with the heat exchange tubes, can be a continuous region, so that the assembling positions of the heat exchange tubes are concentrated when the fins 5 are assembled with the heat exchange tubes, the assembling efficiency of the heat exchanger is high, and meanwhile, the mold cores for arranging the through holes 11 at the windward region 1 and the blank region 12 on the leeward region 2 on the fin 5 processing mold can be removed, so that the processing process of the fins 5 is simple, and the mold cost can be reduced.

Or only the leeward side region 2 is provided with the through holes 11, the blank regions 12 on the leeward side region 2 are a plurality of regions which are spaced along the length direction of the fin 5, the blank regions 12 on the windward side region 1 are one continuous region, at the moment, only the leeward side region 2 can be penetrated with a certain number of heat exchange tubes, and the regions on the leeward side region 2 which cannot be penetrated with the heat exchange tubes can be spaced along the length direction of the fin 5, so that the regions on the leeward side region 2 on the fin 5 which can be penetrated with the heat exchange tubes are distributed, the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, and the inner cores of the dies for arranging the through holes 11 at the blank regions 12 on the windward side region 1 and the leeward side region 2 on the fin 5 can be removed, so that the processing process of the fin 5 is simpler, and the die cost can be reduced.

Layout II

Only the windward side region 1 has the through holes 11, and the blank region 12 on the windward side region 1 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5, and the blank region 12 on the windward side region 1 is one continuous region. It can be understood that only the windward side area 1 has the through hole 11, the blank area 12 on the windward side area 1 is a continuous area, the blank area 12 on the leeward side area 2 is a continuous area, at this time, only the windward side area 1 can be penetrated with a certain number of heat exchange tubes, the heat exchange effect of the fins 5 can be ensured, and the area of the fins 5, which cannot be penetrated with the heat exchange tubes, can be a continuous area, so that the assembling positions of the fins 5 and the heat exchange tubes are concentrated when the fins 5 are assembled, the assembling efficiency of the heat exchanger is higher, and meanwhile, the mold cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 on the windward side area 1 on the fin 5 processing mold can be removed, so that the processing process of the fins 5 is simpler, and the mold cost can be reduced.

Or only the windward side area 1 is provided with the through holes 11, the blank areas 12 on the windward side area 1 are a plurality of areas spaced along the length direction of the fins 5, the blank areas 12 on the leeward side area 2 are continuous areas, at the moment, only the windward side area 1 can be penetrated with a certain number of heat exchange tubes, and the areas on the windward side area 1, which cannot be penetrated with the heat exchange tubes, can be spaced along the length direction of the fins 5, so that the areas on the windward side area 1, which can be penetrated with the heat exchange tubes, on the fins 5 are distributed, the air flow entering the air conditioner indoor unit can exchange heat with the fins 5 better, the fins 5 can have better heat exchange effect, and meanwhile, the inner cores of the dies for arranging the through holes 11, which are positioned at the blank areas 2 on the leeward side area 1 and the windward side area 1, on the fins 5 can be removed, the processing process of the fins 5 is simpler, and the cost of the dies can be reduced.

Layout III

The windward side region 1 and the leeward side region 2 each have a through hole 11, and the blank region 12 on the windward side region 1 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5, and the blank region 12 on the leeward side region 2 is one continuous region or a plurality of regions spaced apart along the length direction of the fin 5. It can be understood that the windward side area 1 and the leeward side area 2 are both provided with through holes 11, the blank area 12 on the windward side area 1 is a continuous area, the blank area 12 on the leeward side area 2 is a continuous area, at this time, the leeward side area 2 and the windward side area 1 can be penetrated by the heat exchange tube, the area of the windward side area 1 in the fin 5, which cannot be penetrated by the heat exchange tube, can be a continuous area, the area of the leeward side area 2 in the fin 5, which cannot be penetrated by the heat exchange tube, can be a continuous area, so that the assembling position of the heat exchange tube is concentrated when the fin 5 is assembled with the heat exchange tube, and the assembling efficiency of the heat exchanger is high. Meanwhile, the mold inner cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 of the windward side area 1 on the fin 5 processing mold can be removed, so that the fin 5 processing process is simpler, and the mold cost can be reduced.

Or the windward side area 1 and the leeward side area 2 are respectively provided with a through hole 11, the blank area 12 on the windward side area 1 is a continuous area, the blank area 12 on the leeward side area 2 is a plurality of areas spaced along the length direction of the fin 5, at this time, the windward side area 2 and the windward side area 1 can be respectively penetrated with a heat exchange tube, and the area of the fin 5, which cannot be penetrated with the heat exchange tube, is a continuous area, so that the assembling position of the heat exchange tube of the windward side area 1 is concentrated when the fin 5 is assembled with the heat exchange tube, and the assembling efficiency of the heat exchanger is higher. The heat exchange tubes can be arranged in the area, which can not be penetrated by the leeward side area 2 on the fin 5, of the heat exchange tubes along the length direction of the fin 5, so that the area, which can be penetrated by the heat exchange tubes, of the leeward side area 2 on the fin 5 is distributed, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have a better heat exchange effect. Meanwhile, the mold inner cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 of the windward side area 1 on the fin 5 processing mold can be removed, so that the fin 5 processing process is simpler, and the mold cost can be reduced.

Or the windward side area 1 and the leeward side area 2 are provided with through holes 11, the blank areas 12 on the windward side area 1 are a plurality of areas spaced along the length direction of the fin 5, the blank areas 12 on the leeward side area 2 are continuous areas, at the moment, the windward side area 2 and the windward side area 1 can be penetrated with heat exchange tubes, and the areas, which cannot be penetrated with the heat exchange tubes, of the windward side area 1 on the fin 5 are spaced along the length direction of the fin 5, so that the areas, which can be penetrated with the heat exchange tubes, of the windward side area 1 on the fin 5 are distributed, the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have better heat exchange effect. The area where the heat exchange tubes cannot be penetrated on the leeward side area 2 in the fin 5 is a continuous area, so that the assembling positions of the heat exchange tubes in the leeward side area 2 are concentrated when the fin 5 is assembled with the heat exchange tubes, and the assembling efficiency of the heat exchanger is high. Meanwhile, the mold inner cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 of the windward side area 1 on the fin 5 processing mold can be removed, so that the fin 5 processing process is simpler, and the mold cost can be reduced.

Or the windward side area 1 and the leeward side area 2 are provided with through holes 11, the blank areas 12 on the windward side area 1 are a plurality of areas spaced along the length direction of the fin 5, the blank areas 12 on the leeward side area 2 are a plurality of areas spaced along the length direction of the fin 5, at this time, the windward side area 2 and the windward side area 1 can be penetrated by the heat exchange tubes, and the areas on the fin 5, where the windward side area 1 and the leeward side area 2 cannot be penetrated by the heat exchange tubes, are spaced along the length direction of the fin 5, so that the areas on the fin 5, where the windward side area 1 and the leeward side area 2 can be penetrated by the heat exchange tubes, are distributed, the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 well, and the fin 5 can have good heat exchange effect. Meanwhile, the mold inner cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 of the windward side area 1 on the fin 5 processing mold can be removed, so that the fin 5 processing process is simpler, and the mold cost can be reduced.

At this time, the layout mode of the through holes 11 on the fins 5 can be selected according to the energy efficiency requirement and the assembly efficiency of the air conditioner indoor unit, so as to meet different use requirements.

In some embodiments of the present invention, as shown in fig. 1 to fig. 4, when the windward side area 1 is provided with a plurality of through holes 11, a bridge piece 511 is provided between at least part of adjacent two through holes 11 on the windward side area 1, so that when the airflow flows through the windward side area 1, the airflow can be better disturbed, the flowing direction of the airflow is changed, so that the airflow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved; or, when the leeward region 2 is provided with a plurality of through holes 11, the bridge piece 511 is arranged between at least part of two adjacent through holes 11 on the leeward region 2, so that the airflow can be better disturbed when the airflow flows through the leeward region 2, the flowing direction of the airflow is changed, the airflow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved; or, along the length direction of the fins 5, at least part of the area of the blank area 12 is provided with a bridge piece 511, so that the airflow can be better disturbed when the airflow flows through the fins 5, the flowing direction of the airflow is changed, the airflow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved.

Alternatively, the blank area 12 is a planar complete area, and it is understood that the blank area 12 is not provided with a protruding bridge 511, so that the blank area 12 is a planar area, and the blank area 12 is not provided with a through hole 11, so that the blank area 12 is a complete area. At this time, the through holes 11 and the bridge pieces 511 are not formed in the blank area 12, and the inner cores of the dies for setting the through holes 11 and the bridge pieces 511 at the blank area 12 on the processing die of the fin 5 can be completely removed, so that the processing process of the fin 5 is simpler, and the cost of the dies can be reduced.

The fins 5 according to four embodiments of the present utility model are described below with reference to the drawings. It is to be understood that the following description is exemplary only, and is intended to be illustrative of the utility model and not to be construed as limiting the utility model.

Example 1

Specifically, in the width direction of the fin 5, the fin 5 is divided into a windward side region 1 and a leeward side region 2, the windward side region 1 is located on the windward side of the leeward side region 2, at least one of the windward side region 1 and the leeward side region 2 has a through hole 11 for the heat exchange tube to pass through, when the windward side region 1 or the leeward side region 2 has a plurality of through holes 11, the plurality of through holes 11 are arranged at intervals along the length direction of the fin 5, the minimum distance between any adjacent two through holes 11 on the windward side region 1 and any adjacent two through holes 11 on the leeward side region 2 is L, at least one of the windward side region 1 and the leeward side region 2 is provided with a blank region 12 without the through holes 11, and the length of the blank region 12 along the length direction of the fin 5 is greater than L.

As shown in fig. 1, each of the windward region 1 and the leeward region 2 has a through hole 11, and only the leeward region 2 has a blank region 12. It will be appreciated that both the windward side region 1 and the leeward side region 2 may be perforated with heat exchange tubes, only the leeward side region 2 having a blank region 12 where no heat exchange tubes can be perforated. The part without the through holes 11 can be concentrated in the leeward side region 2, so that the assembling position of the heat exchange tube is concentrated when the fins 5 are assembled with the heat exchange tube, and the assembling efficiency of the heat exchanger is high. Along the length direction of the fin 5, the blank areas 12 are two areas spaced along the length direction of the fin 5, so that the areas on the fin 5, through which the heat exchange tubes cannot be arranged, are spaced along the length direction of the fin 5, and the areas on the leeward side area 2 on the fin 5, through which the heat exchange tubes can be arranged, are distributed, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have a better heat exchange effect.

When the windward side area 1 is provided with the plurality of through holes 11, the bridge piece 511 is arranged between at least part of two adjacent through holes 11 on the windward side area 1, so that the airflow can be better disturbed when the airflow flows through the windward side area 1, the flowing direction of the airflow is changed, the airflow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved. The blank area 12 is a plane complete area, and the inner core of the die for arranging the through holes 11 and the bridge pieces 511 at the blank area 12 on the processing die of the fin 5 can be completely removed, so that the processing process of the fin 5 is simpler, and the cost of the die can be reduced.

Example two

As shown in fig. 2, the present embodiment is substantially the same as the first embodiment in that the same reference numerals are used for the same components, except that the windward side region 1 and the leeward side region 2 each have a through hole 11, and that the windward side region 1 has a blank region 12. It will be appreciated that both the windward side region 1 and the leeward side region 2 may be perforated with heat exchange tubes, only the windward side region 1 having a blank region 12 where no heat exchange tubes can be perforated. The part without the through holes 11 can be concentrated in the windward side area 1, so that the assembling position of the heat exchange tube is concentrated when the fins 5 are assembled with the heat exchange tube, and the assembling efficiency of the heat exchanger is high. Along the length direction of the fin 5, the blank areas 12 are two areas spaced along the length direction of the fin 5, so that the areas on the fin 5, through which the heat exchange tubes cannot be arranged, are spaced along the length direction of the fin 5, and the areas on the windward side area 1 of the fin 5, through which the heat exchange tubes can be arranged, are distributed, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have a better heat exchange effect.

When the leeward region 2 is provided with a plurality of through holes 11, the bridge 511 is arranged between at least part of two adjacent through holes 11 on the leeward region 2, so that the airflow can be better disturbed when the airflow flows through the leeward region 2, the flowing direction of the airflow is changed, the airflow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved. The blank area 12 is a plane complete area, and the inner core of the die for arranging the through holes 11 and the bridge pieces 511 at the blank area 12 on the processing die of the fin 5 can be completely removed, so that the processing process of the fin 5 is simpler, and the cost of the die can be reduced.

Example III

As shown in fig. 3, the structure of this embodiment is substantially the same as that of the first embodiment, in which the same reference numerals are used for the same components, and the difference is that the windward region 1 and the leeward region 2 each have a blank region 12, the windward region 1 and the leeward region 2 each have a through hole 11, the blank region 12 on the windward region 1 is a plurality of regions spaced apart along the length direction of the fin 5, the blank region 12 on the leeward region 2 is a plurality of regions spaced apart along the length direction of the fin 5, at this time, the windward region 2 and the windward region 1 can both penetrate through the heat exchange tube, and the regions on the fin 5 where the windward region 1 and the leeward region 2 cannot penetrate through the heat exchange tube can be spaced apart along the length direction of the fin 5, so that the regions on the fin 5 where the windward region 1 and the leeward region 2 can penetrate through the heat exchange tube are arranged in a dispersed manner, and the air flow entering the air conditioner indoor unit can exchange heat with the fin 5 better, and the fin 5 can have better heat exchange effect. Meanwhile, the mold inner cores for arranging the through holes 11 at the leeward side area 2 and the blank area 12 of the windward side area 1 on the fin 5 processing mold can be removed, so that the fin 5 processing process is simpler, and the mold cost can be reduced.

The bridge piece 511 is arranged between at least part of two adjacent through holes 11 on the windward side area 1 and the leeward side area 2, so that the air flow can be disturbed better when the air flow flows through the windward side area 1 and the leeward side area 2, the flowing direction of the air flow is changed, the air flow can perform sufficient heat exchange with the fins 5, and the heat exchange effect of the fins 5 is further improved.

The number of through holes 11 not opened in the windward region 1 is 7, and the number of through holes 11 not opened in the leeward region 2 is 7.

Example IV

As shown in fig. 4, the present embodiment has substantially the same structure as the third embodiment, wherein the same reference numerals are used for the same components, and the difference is that the number of through holes 11 not opened in the windward side region 1 is 7, and the number of through holes 11 not opened in the leeward side region 2 is 5.

The heat exchanger according to the utility model comprises a plurality of heat exchange tubes and the fins 5, wherein the fins 5 are spaced along the thickness direction of the fins 5, and the heat exchange tubes are arranged in the through holes 11 of the fins 5 in a penetrating manner.

According to the heat exchanger of the utility model, through holes 11 for the heat exchange tubes to pass through are formed in at least one of the windward side region 1 and the leeward side region 2 in the width direction of the fin 5, when the windward side region 1 or the leeward side region 2 is provided with a plurality of through holes 11, the plurality of through holes 11 are arranged at intervals along the length direction of the fin 5, so that the plurality of heat exchange tubes can be arranged at intervals along the length direction of the fin 5, and the heat exchange medium in the heat exchange tubes can be dispersed when transferring heat or cold to the fin 5, so that the temperature on the fin 5 is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area 12 along the length direction of the fin 5 is larger than the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2, the length of the blank area 12 along the length direction of the fin 5 is larger, the distance between the heat exchange pipes along the length direction of the fin 5 is larger, the air flow entering the air conditioning indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, the through holes 11 are not formed in the blank area 12, the die inner core of the blank area 12 for arranging the through holes 11 can be detached, the processing process of the fin 5 is simpler, the die cost can be reduced, and the manufacturing cost of the heat exchanger is lower.

The heat exchanger assembly 100 according to the present utility model includes a plurality of heat exchangers as described above, which are sequentially connected along the length direction of the fins 5.

According to the heat exchanger assembly 100 of the present utility model, through the arrangement of the through holes 11 for the heat exchange tubes to pass through in at least one of the windward side region 1 and the leeward side region 2 in the width direction of the fin 5, when the windward side region 1 or the leeward side region 2 has the plurality of through holes 11, the plurality of through holes 11 are arranged at intervals along the length direction of the fin 5, so that the plurality of heat exchange tubes can be arranged at intervals along the length direction of the fin 5, and the heat exchange medium in the heat exchange tubes can be dispersed when transferring heat or cold to the fin 5, so that the temperature on the fin 5 is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area 12 along the length direction of the fin 5 is larger than the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2, the length of the blank area 12 along the length direction of the fin 5 is larger, the distance between the heat exchange pipes along the length direction of the fin 5 is larger, the air flow entering the air conditioning indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, the through holes 11 are not formed in the blank area 12, the die inner core used for arranging the through holes 11 in the blank area 12 can be removed, the processing process of the fin 5 is simpler, the die cost can be reduced, the manufacturing cost of the heat exchanger is lower, and the manufacturing cost of the heat exchanger assembly 100 is lower.

In some embodiments of the present invention, as shown in fig. 1-4, the plurality of heat exchangers includes a first heat exchanger 3 and a second heat exchanger 4, the heat exchanger assembly 100 has a plurality of groups of fins 5 therein, each group of fins 5 includes a group of second heat exchanger fins 52 located on the second heat exchanger 4 and a group of first heat exchanger fins 51 located on the first heat exchanger 3 in one-to-one correspondence in a width direction of the heat exchanger assembly 100, heat exchange tubes are arranged on the second heat exchanger fins 52 to form the second heat exchanger 4, and heat exchange tubes are arranged on the first heat exchanger fins 51 to form the first heat exchanger 3. One end of the first heat exchanger 3 along the length direction of the fin 5 is connected with one end of the second heat exchanger 4 along the length direction of the fin 5, and the first heat exchanger 3 and the second heat exchanger 4 form a semi-surrounding shape. The first heat exchanger 3 and the second heat exchanger 4 can semi-surround the wind wheel of the air conditioner indoor unit, so that the air flow entering the air conditioner indoor unit flows through the heat exchanger assembly 100 under the driving of the wind wheel, and the heat exchange effect of the air flow entering the air conditioner indoor unit is good.

Further, as shown in fig. 1 to 4, in a direction from one end of the first heat exchanger 3 connected to the second heat exchanger 4 to the other end, the first heat exchanger 3 sequentially includes a first straight line segment 31, an arc segment 32, and a second straight line segment 33, the first straight line segment 31 and the second heat exchanger 4 are angled with each other, the arc segment 32 protrudes toward a side facing away from the second heat exchanger 4, and an end of the second straight line segment 33 facing away from the arc segment 32 extends obliquely toward a side of the second heat exchanger 4. In this embodiment, the first straight line segment 31 and the second heat exchanger 4 of the first heat exchanger 3 are located on the upper side of the wind wheel, the arc segment 32 is located on the upper front side of the wind wheel, the second straight line segment 33 is located on the front side of the wind wheel, at this time, the transition of each part of the first heat exchanger 3 is smooth, when the air flow flows through the first heat exchanger 3, the contact between the air flow and the folded angle of the first heat exchanger 3 can be avoided, the air flow is prevented from generating a sharper whistle sound, the space utilization of the first heat exchanger 3 is better, the problem that ponding is easy to occur at the outer angle of the folded position can be reduced, the phenomenon that ponding drops into the air duct of the air conditioner indoor unit to generate blowing water can be avoided as much as possible, and the quality of the air conditioner indoor unit is improved.

An indoor unit of an air conditioner according to an embodiment of the present utility model includes the heat exchanger assembly 100 described above.

According to the indoor unit of the air conditioner, through the through holes 11 for the heat exchange tubes to pass through are formed in at least one of the windward side area 1 and the leeward side area 2 in the width direction of the fin 5, when the windward side area 1 or the leeward side area 2 is provided with the through holes 11, the through holes 11 are arranged at intervals along the length direction of the fin 5, so that the heat exchange tubes are arranged at intervals along the length direction of the fin 5, and the heat exchange medium in the heat exchange tubes can be dispersed when transferring heat or cold to the fin 5, so that the temperature on the fin 5 is uniform, and the heat exchange effect of the indoor unit of the air conditioner is good. The length of the blank area 12 along the length direction of the fin 5 is larger than the minimum distance between any two adjacent through holes 11 on the windward side area 1 and any two adjacent through holes 11 on the leeward side area 2, the length of the blank area 12 along the length direction of the fin 5 is larger, the distance between the heat exchange pipes along the length direction of the fin 5 is larger, the air flow entering the air conditioning indoor unit can exchange heat with the fin 5 better, the fin 5 can have better heat exchange effect, the through holes 11 are not formed in the blank area 12, the die inner core of the blank area 12 for arranging the through holes 11 can be removed, the processing process of the fin 5 is simpler, the die cost can be reduced, the manufacturing cost of the heat exchanger is lower, the manufacturing cost of the heat exchanger assembly 100 is lower, and the manufacturing cost of the air conditioning indoor unit is lower.

Other constructions and operations of the fins 5, heat exchangers, heat exchanger assemblies 100, and air conditioning indoor units according to embodiments of the invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. The fin of the heat exchanger is characterized in that in the width direction of the fin, the fin is divided into a windward side area and a leeward side area, the windward side area is located on the windward side of the leeward side area, at least one of the windward side area and the leeward side area is provided with through holes for the heat exchange tubes to pass through, when the windward side area or the leeward side area is provided with a plurality of through holes, the through holes are arranged at intervals along the length direction of the fin, the minimum distance between any two adjacent through holes on the windward side area and any two adjacent through holes on the leeward side area is L, at least one of the windward side area and the leeward side area is provided with a blank area which is not provided with the through holes, and the length of the blank area along the length direction of the fin is larger than L.

2. The fin of claim 1, wherein the windward side region and the leeward side region each have the through-holes, and only the leeward side region has the blank region.

3. The heat exchanger fin according to claim 2, wherein the blank area is one continuous area or a plurality of areas spaced apart along the length of the fin.

4. The fin of claim 1, wherein only the windward side region has the through-holes, only the leeward side region has the blank region and the blank region is one continuous region.

5. The fin of claim 1, wherein the leeward region and the windward region each have the through-holes, and only the windward region has the blank region.

6. The heat exchanger fin of claim 5, wherein the blank area is one continuous area or a plurality of areas spaced apart along the length of the fin.

7. The fin of claim 1, wherein only the leeward side region has the through-holes, only the windward side region has the blank region and the blank region is one continuous region.

8. The fin of claim 1, wherein the windward side region and the leeward side region each have the blank region.

9. The fin of a heat exchanger of claim 8, wherein only the leeward side region has the through-holes, the blank area on the leeward side region being one continuous region or a plurality of regions spaced apart along the length of the fin, the blank area on the windward side region being one continuous region;

Or, only the windward side region has the through hole, the blank region on the windward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin, and the blank region on the leeward side region is one continuous region;

or, the windward side region and the leeward side region each have the through hole, the blank region on the windward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin, and the blank region on the leeward side region is one continuous region or a plurality of regions spaced apart along the length direction of the fin.

10. The fin of a heat exchanger according to claim 1, wherein when the windward side region is provided with a plurality of the through holes, a bridge piece is provided between at least two adjacent through holes on the windward side region;

or when the leeward region is provided with a plurality of through holes, a bridge piece is arranged between at least part of two adjacent through holes on the leeward region;

or, along the length direction of the fin, at least part of the blank area is provided with a bridge piece;

Or, the blank area is a plane complete area.

11. A heat exchanger, comprising:

a fin which is a fin of the heat exchanger according to any one of claims 1 to 10, the fin being a plurality of fins spaced apart in a thickness direction of the fin;

the heat exchange tubes are arranged in the through holes of the fins in a penetrating mode.

12. A heat exchanger assembly, comprising:

the heat exchanger of claim 11, wherein a plurality of heat exchangers are sequentially connected along a length direction of the fin.

13. The heat exchanger assembly of claim 12, wherein the plurality of heat exchangers includes a first heat exchanger and a second heat exchanger, wherein one end of the first heat exchanger along the length of the fin is connected to one end of the second heat exchanger along the length of the fin, and wherein the first heat exchanger and the second heat exchanger form a semi-enclosure.

14. The heat exchanger assembly of claim 13, wherein the first heat exchanger comprises a first straight line segment, an arcuate segment and a second straight line segment in that order in a direction from one end of the first heat exchanger to the other end of the second heat exchanger, the first straight line segment being at an angle to the second heat exchanger, the arcuate segment protruding toward a side facing away from the second heat exchanger, an end of the second straight line segment facing away from the arcuate segment extending obliquely toward a side of the second heat exchanger.

15. An air conditioning indoor unit comprising a heat exchanger assembly according to any one of claims 12-14.