CN219713482U - Air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner, relates to the technical field of refrigeration equipment, and aims to solve the problems that a split-assembled multi-fold heat exchanger in the air conditioner is inconvenient to install and the heat exchange efficiency is affected at a splicing position. The refrigerant heat exchanger of the air conditioner comprises a refrigerant pipe and a plurality of fins, wherein the fins are of an integrated planar sheet structure, the fins are arranged at intervals along a first linear direction, and the refrigerant pipe penetrates through the fins along the first linear direction and is in contact connection with the fins. The fin comprises a first connecting sheet, a second connecting sheet and a third connecting sheet, wherein the second connecting sheet is provided with two edges with the same shape and size along the second straight line direction. The first connecting piece and the third connecting piece are connected to opposite ends of the second connecting piece along a third straight line direction. The first connecting piece and the third connecting piece are both connected with the second connecting piece in a bending way. The third linear direction is perpendicular to the first linear direction. The air conditioner provided by the utility model is used for simplifying the structure of the refrigerant heat exchanger and improving the heat exchange efficiency.

Description

Air conditioner

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to an air conditioner.

Background

At present, most of heat exchanger fins commonly used in indoor unit heat exchangers of air conditioners are of an equal-width rectangular structure or partial special-shaped structures are arranged at two ends of the rectangle, and pipeline flow paths on the heat exchanger fins are uniformly arranged according to the width rule of the fins.

Because the air sent out by the fan of the indoor unit is generally nonuniform, in order to reduce the installation occupation space of the indoor unit and improve the heat flux density, a plurality of flat plate-shaped heat exchangers can be spliced to form a multi-fold heat exchanger with a V-shaped or Z-shaped special-shaped structure in the indoor unit such as an air pipe machine.

Because the gap and the splice plate for connection exist at the splice position of the multi-fold heat exchanger. On the one hand, the gap of splice can't install the refrigerant pipe, can reduce here heat exchanger and air's heat exchange efficiency. On the other hand, the combined installation operation steps of the split type multi-fold heat exchanger formed by splicing are complicated.

Disclosure of Invention

The utility model aims to provide an air conditioner, and aims to solve the problems that a split-assembled multi-fold heat exchanger in the air conditioner is inconvenient to install and the heat exchange efficiency is affected by a spliced part.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

some embodiments of the present utility model provide an air conditioner, which includes a housing, a fan assembly, and a refrigerant heat exchanger, wherein the fan assembly is located in the housing, the refrigerant heat exchanger is installed in the housing, and the fan assembly is used for driving air to flow through the refrigerant heat exchanger. The refrigerant heat exchanger comprises a refrigerant pipe and a plurality of fins, wherein the fins are of an integrated planar sheet structure, the fins are arranged at intervals along a first linear direction, and the refrigerant pipe penetrates through the fins along the first linear direction and is in contact connection with the fins. The fin includes first connection piece, second connection piece and third connection piece, along the second straight line direction, the second connection piece has two edges of relative setting, and the shape size of two edges is the same. The first connecting piece and the third connecting piece are connected to opposite ends of the second connecting piece along a third straight line direction. The first connecting piece is connected with the second connecting piece in a bending way, and the second connecting piece is connected with the third connecting piece in a bending way. The first linear direction, the second linear direction and the third linear direction are perpendicular to each other.

In this way, in the air conditioner, the fan assembly can drive the air of the shell to continuously flow through the refrigerant heat exchanger and heat or cool the air flowing through the refrigerant heat exchanger through the refrigerant circulating in the refrigerant heat exchanger. Based on this, a plurality of fins of the integral sheet structure distributed at intervals along the first linear direction may be in contact connection with the refrigerant tube disposed through the plurality of mounting holes, so that the plurality of fins distributed at intervals increase the contact area of the refrigerant tube and the air in the refrigerant heat exchanger. Because each fin is connected through buckling first connection piece, second connection piece and third connection piece in order to form the bow font slice structure of integration, be convenient for trompil installation refrigerant pipe to make a plurality of fins and a plurality of refrigerant pipe connection form the refrigerant heat exchanger of integral type structure, thereby avoided the complex operation in the heat exchanger equipment concatenation process of components of a whole that can function independently-many book type structure. In addition, in the shell with limited height, the heat exchange area of the refrigerant heat exchanger is increased through the fins with the arch-shaped structure, so that the heat exchange efficiency of the air conditioner is further improved.

Furthermore, the two oppositely disposed edges of the second connecting piece in the second straight direction have the same shape and size. In the process of machining the cutting fins, the edges of the two second connecting pieces in the two adjacent fins can be mutually attached to avoid cutting scraps generated between the two adjacent second connecting pieces in the process of cutting production. Is favorable for improving the utilization efficiency of raw materials in the fin manufacturing process

In some embodiments, the fin has an inlet air contour and an outlet air contour, and the inlet air contour and the outlet air contour are two edges of the fin disposed opposite in the second linear direction. The fin also has a first edge line and a second edge line, and along a third straight line direction, two oppositely arranged edges of the fin are the first edge line and the second edge line, and the first edge line is one side edge of the first connecting sheet far away from the second connecting sheet. The first edge line and the second edge line are arranged in parallel and extend along the second straight line direction. Along the second straight line direction, the first edge line is connected with one end of the air inlet contour line and one end of the air outlet contour line, and the second edge line is connected with the other end of the air inlet contour line and the other end of the air outlet contour line.

In some embodiments, the air inlet profile is the same shape and size as the air outlet profile.

In some embodiments, the air inlet side edge of the fin along the second straight line direction is an air inlet contour line, the air inlet contour line further comprises an air inlet first contour line, and the edge, close to the air inlet side, of the first connecting piece along the second straight line direction is the air inlet first contour line. One end of the air inlet first contour line, which is close to the first edge line along the third linear direction, is connected with one end of the first edge line through a round corner.

In some embodiments, the air inlet side edge of the fin along the second straight line direction is an air inlet contour line, the air inlet contour line further comprises an air inlet first contour line, and the edge, close to the air inlet side, of the first connecting piece along the second straight line direction is the air inlet first contour line. The air inlet first contour line is of a linear structure along the third linear direction, and one end of the air inlet first contour line, which is close to the first edge line, is connected with one end of the first edge line.

In some embodiments, the air inlet profile includes an air inlet second profile, and an edge of the second connecting piece near the air inlet side along the second straight line direction is the air inlet second profile. One end of the air inlet first contour line far away from the first edge line along the third linear direction is connected with one end of the air inlet second contour line through a round angle or a chamfer angle.

In some embodiments, each fin is provided with a plurality of mounting holes, the plurality of fins are spaced apart along the first linear direction, and the plurality of mounting holes on any two fins are aligned along the first linear direction. The number of the refrigerant pipes is multiple, the refrigerant pipes are in one-to-one correspondence with the mounting holes on the fins, and the refrigerant pipes extend along the first linear direction and are inserted into the mounting holes in alignment.

In some embodiments, the number of columns of mounting holes in the second connecting piece is greater than the number of columns of mounting holes in the first connecting piece.

In some embodiments, the number of columns of mounting holes in the second connection tab is greater than the number of columns of mounting holes in the third connection tab.

In some embodiments, the first connecting piece and the third connecting piece are bent toward the same side of the second connecting piece along the second straight direction.

In some embodiments, the first connecting piece is bent towards one side of the second connecting piece along the second straight direction, and the third connecting piece is bent towards the other side of the second connecting piece.

In some embodiments, the fins are axisymmetric and the symmetry axis of the fins is parallel to the second straight line direction.

In some embodiments, the second connecting piece is a rectangular structure.

In some embodiments, the first connecting piece and the second connecting piece are bent and connected to form an included angle ranging from 110 degrees to 160 degrees.

In some embodiments, the third tab is bent at an angle in the range of 110 ° to 160 ° to the second tab.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a connection structure of an air conditioner according to an embodiment of the present application;

FIG. 2 is a schematic illustration of one connection configuration of the heat exchanger assembly shown in FIG. 1;

fig. 3 is a plan view illustrating an outdoor unit of an air conditioner according to an embodiment of the present application;

fig. 4 is a side view of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 5 is a schematic perspective view of the refrigerant heat exchanger shown in FIG. 4;

FIG. 6 is a side sectional view of an air duct machine according to the related art;

fig. 7 is another side view of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 8 is a side view of a first fin of the refrigerant heat exchanger shown in FIG. 7;

FIG. 9 is a schematic view of a configuration of the continuous arrangement of the plurality of fins shown in FIG. 8;

FIG. 10 is a side view of a second type of fin of the refrigerant heat exchanger shown in FIG. 7;

FIG. 11 is a partial schematic view of the second connecting tab shown in FIG. 8;

FIG. 12 is a side view of another fin in a refrigerant heat exchanger according to an embodiment of the present application;

FIG. 13 is a schematic view of a configuration of the continuous arrangement of the plurality of fins shown in FIG. 12;

FIG. 14 is a side view of yet another fin in a refrigerant heat exchanger according to an embodiment of the present application;

Fig. 15 is a schematic view of a structure in which a plurality of fins shown in fig. 14 are arranged in succession.

Reference numerals:

100-an air conditioner;

a 10-compressor assembly; 20-a four-way valve;

30-a heat exchanger assembly; 31-an outdoor heat exchanger; 32-an indoor heat exchanger;

33-refrigerant heat exchanger; 331-refrigerant tube; 332-fins; 3321-first connecting piece; 3322-second connecting piece; 3323-third connecting piece; 3324—air intake contour line; 33241-inlet air first contour line; 33242-inlet air second contour line; 33243-inlet third profile; 3325-wind outlet profile; 33251—air-out first contour line; 33252—outlet second contour line; 33253-outlet third profile; 3326—a first edge line; 3327—a second edge line; 3328-fourth connecting piece; 3329-fifth connecting piece; 333-mounting holes;

34-a shunt; 35-gas collecting pipes;

40-throttling means; 50-a housing; 60-fan assembly.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or relative positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Unless otherwise specified, the above description of the azimuth may be flexibly set in the course of practical application in the case where the relative positional relationship shown in the drawings is satisfied.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the present utility model, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, article or apparatus that comprises the element.

In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present utility model is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The embodiment of the utility model provides an air conditioner, namely an air conditioner, which is equipment capable of adjusting and controlling parameters such as temperature, humidity, circulation flow rate and the like of ambient air in a building or a structure.

As shown in fig. 1, fig. 1 is a schematic diagram of a connection structure of an air conditioner 100 according to an embodiment of the present application. The air conditioner 100 may include a compressor assembly 10, a four-way valve 20, a heat exchanger assembly 30, and a throttle device 40. Illustratively, the four-way valve 20 may have four ports A, B, C and D, and the heat exchanger assembly 30 may include an outdoor heat exchanger 31 and an indoor heat exchanger 32. One end of the compressor assembly 10 may be connected to the a end of the four-way valve, and the other end of the compressor assembly 10 may be connected to the B end of the four-way valve. The C-terminal of the four-way valve may be connected to one end of the outdoor heat exchanger 31, the other end of the outdoor heat exchanger 31 may be connected to the indoor heat exchanger 32 through the throttle device 40, and the other end of the indoor heat exchanger 32 may be connected to the D-terminal of the four-way valve.

The air conditioner 100 may include an indoor unit and an outdoor unit, and the compressor assembly 10, the four-way valve 20, and the outdoor heat exchanger 31 may be part of the outdoor unit, and the corresponding indoor heat exchanger 32 may be part of the indoor unit. The throttle device 40 may be a capillary tube structure, an electronic expansion valve structure, or the throttle device 40 may be installed in an outdoor unit, an indoor unit, or a refrigerant line between the outdoor unit and the indoor unit, and the throttle device 40 may be installed only by positioning the throttle device 40 between the indoor heat exchanger 32 and the outdoor heat exchanger 31 in the flow direction of the refrigerant.

Based on this, the refrigerant can circulate between the indoor unit and the outdoor unit, and can generate a reversible phase change, and the refrigerant can release or absorb heat while generating a phase change. The refrigerant can exchange heat with the outdoor heat exchanger in the outdoor unit, thereby releasing heat to heat the surrounding air (or absorbing heat to cool the air in the vicinity). The refrigerant is capable of exchanging heat with the indoor heat exchanger in the indoor unit, thereby absorbing heat to cool the surrounding air (or releasing heat to heat the air in the vicinity).

For example, when the air conditioner is cooling, in conjunction with fig. 1, the four-way valve 20 can be adjusted to turn on port B and port C and to turn on port D and port a. So that the refrigerant can circulate between the compressor assembly 10, the ports B and C of the four-way valve 20, the outdoor heat exchanger 31, the throttle device 40, the indoor heat exchanger 32, the ports D and a of the four-way valve 20, and the compressor assembly 10. In this process, the refrigerant can exchange heat with the outdoor heat exchanger 31 and release heat, and the refrigerant can also exchange heat with the indoor heat exchanger 32 and absorb heat, so that the refrigerating effect of cooling indoor air is achieved.

When the air conditioner heats, as shown in fig. 1, the four-way valve 20 may be adjusted to turn on the port B and the port D, and to turn on the port C and the port a. In this way, the refrigerant can circulate between the compressor assembly 10, the ports B and D of the four-way valve 20, the indoor heat exchanger 32, the throttle device 40, the outdoor heat exchanger 31, the ports C and a of the four-way valve 20, and the compressor assembly 10. In this process, the refrigerant can exchange heat with the outdoor heat exchanger 31 and absorb heat, and the refrigerant can exchange heat with the indoor heat exchanger 32 and release heat, so that the heating effect of heating indoor air is achieved.

In some embodiments, as shown in fig. 2, fig. 2 is a schematic illustration of one connection configuration of the heat exchanger assembly 30 shown in fig. 1. The heat exchanger assembly 30 may include a refrigerant heat exchanger 33, a flow divider 34, and a header 35. The refrigerant heat exchanger 33 may be used as the main structure of the heat exchanger assembly 30, or may be used as the outdoor heat exchanger 31 or the indoor heat exchanger 32, and the refrigerant flowing in the refrigerant heat exchanger 33 may be contacted with air and heat exchanged, that is, used for heat exchange and circulation of the refrigerant, which is not limited in the present application. Along the flow direction of the refrigerant, the flow divider 34 and the gas header 35 may be installed at opposite sides of the refrigerant heat exchanger 33, and the gas header 35 may be used to communicate with the four-way valve 20 or directly with the gas outlet end of the compressor assembly 10 (single-cooled air conditioner).

In the refrigerating system such as the air conditioner 100, except for the case of small refrigerating capacity, the refrigerant heat exchanger 33 can adopt a multi-path parallel connection mode to increase the flow rate of the refrigerant in unit time and ensure that the refrigerant can have a sufficient contact area with air. For example, the refrigerant heat exchanger 33 may include a plurality of refrigerant tubes disposed in parallel as refrigerant channels, and the refrigerant tubes may be made of a metal or metal alloy material such as copper or aluminum with better heat conductivity, so that the refrigerant flowing in the refrigerant tubes may exchange heat with air rapidly. The refrigerant pipe can be of a strip-shaped circular pipe structure, a flat pipe structure with a plurality of micro-channel structures and the like. In order to increase the contact area between the refrigerant heat exchanger 33 and the air, the refrigerant heat exchanger 33 may further include a plurality of fins, and the plurality of fins may be mounted in contact with the plurality of refrigerant tubes, so as to increase the contact area between the plurality of refrigerant tubes and the air, thereby improving the heat exchange efficiency of the refrigerant heat exchanger 33.

As shown in fig. 3, fig. 3 is a top view of an outdoor unit of an air conditioner 100 according to an embodiment of the present application. The air conditioner 100 may include a housing 50 (i.e., a housing of an outdoor unit) and a fan assembly 60, and both the refrigerant heat exchanger 33 as the outdoor heat exchanger 31 and the fan assembly 60 may be installed in the housing 50. Thus, since the outdoor heat exchanger 31 may be disposed near the air outlet or the air inlet of the housing 50, when the fan assembly 60 is energized to rotate, air may be driven by the fan assembly 60 to flow through the outdoor heat exchanger 31, so that the flowing air may exchange heat with the refrigerant flowing inside the outdoor heat exchanger 31 through the outdoor heat exchanger 31. The fan assembly 60 installed in the outdoor unit may be a centrifugal fan or an axial fan, so that the fan assembly 60 drives air near the outdoor unit to continuously flow through the outdoor heat exchanger 31 and exchange heat. At this time, the compressor assembly 10 and constituent members of the outdoor unit such as the four-way valve may be installed in the housing 50.

Taking the refrigerant heat exchanger 33 as an evaporator of an outdoor unit (i.e., the outdoor heat exchanger 31 in a heating condition) as an example, one end of a plurality of refrigerant pipes arranged in parallel may be connected to the flow divider 34, and the other end of the plurality of refrigerant pipes may be connected to the gas collecting pipe 35. The other end of the header 35 may be in communication with port C of the four-way valve 20. The other end of the flow divider 34 may be in communication with the throttle device 40, or the other end of the flow divider 34 may be in direct communication with the indoor heat exchanger 32 (in this case, the flow divider 34 may also be used as a throttle device). Based on this, the gas-liquid two-phase refrigerant can be uniformly split by the splitter 34 and then flows into the refrigerant pipes of the refrigerant heat exchanger 33 through the splitting ports of the splitter 34, and the refrigerant can be converged in the gas collecting pipe 35 after being vaporized and absorbed by the refrigerant pipes and flows into the compressor assembly 10 through the port C of the four-way valve 20. By the arrangement of the flow divider 34, the refrigerant can maintain the optimal flow velocity in the refrigerant heat exchanger 33, and the pressure drop on the refrigerant side can be controlled within a certain range, so that the gas-liquid two-phase refrigerant can be uniformly distributed in the refrigerant heat exchanger 33.

In addition, as shown in fig. 4, fig. 4 is a side view of an indoor unit of an air conditioner 100 according to an example of the present application. In this case, the casing 50 may be a casing of the indoor unit, and the corresponding refrigerant heat exchanger 33 may be the indoor heat exchanger 32 mounted in the casing 50. The housing 50 of the indoor unit may be also provided with a fan assembly 60, and the fan assembly 60 may be any one of a cross flow fan, a diagonal flow fan, a centrifugal fan, and an axial flow fan. Taking a suspended indoor unit with an air duct type structure as an example, the fan assembly 60 installed in the housing 50 may be a centrifugal fan, and an air outlet of the fan assembly 60 with a centrifugal structure may be disposed towards the indoor heat exchanger 32, so that the fan assembly 60 may drive air near the indoor unit to continuously flow through the indoor heat exchanger 32, and heat or cool air flowing through the indoor heat exchanger 32 by a refrigerant circulating in the indoor heat exchanger 32.

With continued reference to fig. 4, the refrigerant heat exchanger 33 may include a plurality of refrigerant tubes 331 and a plurality of fins 332, and each fin 332 is provided with a plurality of mounting holes 333. Referring to fig. 5, fig. 5 is a schematic perspective view of the refrigerant heat exchanger 33 shown in fig. 4. The plurality of fins 332 may be spaced apart in a first linear direction (i.e., X-direction) such that a gap through which air can flow is formed between two adjacent fins 332. The positions and the number of the plurality of mounting holes 333 formed in each fin 332 are the same, and therefore, in the process of arranging the plurality of fins 332 at intervals along the first linear direction, the plurality of mounting holes 333 on two adjacent fins 332 may be aligned, that is, the two adjacent fins 332 may be arranged approximately in parallel. Since the number of the refrigerant tubes 331 is the same as the number of the plurality of mounting holes 333 on one fin 332, the plurality of refrigerant tubes 331 and the plurality of mounting holes 333 on one fin 332 can be arranged in a one-to-one correspondence. For example, one refrigerant tube 331 may extend along the X direction and sequentially pass through the aligned mounting holes 333, so that the refrigerant tube 331 may be connected with each fin 332 by contacting edges of the mounting holes 333, i.e. the plurality of fins 332 distributed at intervals may effectively increase the contact heat exchange area between the refrigerant tube 331 and air. In this way, air can flow through the refrigerant heat exchanger 33 through the gap between two adjacent fins 332, and in this process, the fins 332 and the refrigerant tube 331 continuously contact the flowing air, so as to improve the heat exchange efficiency between the refrigerant in the refrigerant tube 331 and the air.

It should be noted that, each refrigerant tube 331 may be a straight tube extending along the X direction, and after a plurality of refrigerant tubes 331 are inserted and installed, a connection elbow may be disposed at two ends of each refrigerant tube 331 to form a flow channel of the refrigerant. Alternatively, for the copper tube of the U-shaped structure, the copper tube of the U-shaped structure may include two straight tube-shaped refrigerant tubes 331 extending in the X-direction.

Taking an indoor unit as an air duct machine as an example, most of the fins 332 of the conventional refrigerant heat exchanger 33 have an equal-width rectangular structure or partial special-shaped structures are arranged at two ends of the rectangle, and the refrigerant tubes 331 on the fins 332 are uniformly arranged according to the width rule of the fins 332. Since the air sent out from the fan assembly 60 of the indoor unit is generally non-uniform, and in order to reduce the installation space of the indoor unit and increase the heat flux density, a plurality of flat-plate-shaped refrigerant heat exchangers 33 may be spliced to form a multi-fold heat exchanger with a V-shaped or zigzag-shaped special-shaped structure in the indoor unit such as an air pipe machine.

As shown in fig. 6, fig. 6 is a side sectional view of an air duct machine 01 according to the related art. The ducted air machine 01 may include a housing 02, a centrifugal fan 03 and a multi-fold heat exchanger 04 mounted within the housing 02. The multi-fold heat exchanger 04 is arranged close to the air outlet of the centrifugal fan 03, the multi-fold heat exchanger 04 with a V-shaped structure can be formed by splicing two heat exchangers with flat plate structures, and the opening side of the multi-fold heat exchanger 04 with the V-shaped structure is arranged towards the air outlet of the centrifugal fan 03. However, a gap for ventilation is formed between the two flat plate-type heat exchangers, or the gap may be used for installing a splice plate connecting the two heat exchangers. Therefore, refrigerant pipes cannot be installed at the joint of the two flat plate type heat exchangers, and the heat exchange efficiency of the heat exchangers and air at the joint can be reduced. In addition, the split type multi-fold heat exchanger formed by splicing has more complicated operation steps during combined installation.

Taking the example that two oppositely disposed end surfaces of the refrigerant heat exchanger 33 in the first linear direction (i.e., the X direction) shown in fig. 5 are a left side surface and a right side surface, the plurality of fins 332 are spaced apart along the first linear direction, the length direction of each rectangular fin 332 is in the third linear direction (i.e., the Z direction), and the width direction of the rectangular fin 332 is in the second linear direction (i.e., the Y direction).

Based on this, referring to fig. 7, fig. 7 is another side view of the indoor unit of the air conditioner 100 according to the example of the present application. The refrigerant heat exchanger 33 and the blower fan assembly 60 of the arcuate structure may be installed in the housing 50 of the indoor unit, and an opening side of the refrigerant heat exchanger 33 may be disposed toward the blower fan assembly 60. Taking the example that the refrigerant heat exchanger 33 and the fan assembly 60 may be spaced apart in the Y direction (i.e., the second straight direction), the fin 332 may include a first connection piece 3321, a second connection piece 3322, and a third connection piece 3323 connected in sequence in the third straight direction (i.e., the Z direction). The second connecting piece 3322 may be defined as a rectangular sheet-like structure extending in the Z direction and having opposite ends. In this way, the first connecting piece 3321 and the third connecting piece 3323 may be connected to opposite ends of the second connecting piece in the Z direction so as to bend the first connecting piece 3321 and the second connecting piece 3322 and bend the second connecting piece 3322 and the third connecting piece 3323. The fin 332 is an integrated planar sheet structure, and a plurality of mounting holes 333 are formed in the fin 332.

In this case, the fin 332 may be bent toward the same side as the second connecting piece 3322 in the Y direction by taking the arcuate structure as shown in fig. 7 as an example. For example, the first connecting piece 3321 and the third connecting piece 3323 may be bent toward the fan assembly 60 along the Y direction and connected to the second connecting piece 3322, and at this time, the opening side of the refrigerant heat exchanger 33 having the arcuate structure is disposed toward the fan assembly 60. In addition, the first connecting piece 3321 and the third connecting piece 3323 may be bent toward the air outlet of the indoor unit along the Y direction, and the air outlet and the fan assembly 60 are located on two opposite sides of the refrigerant heat exchanger 33 along the Y direction, and at this time, the opening side of the refrigerant heat exchanger 33 with the arcuate structure may be disposed away from the fan assembly 60.

In this way, after the fins 332 with the integral sheet structure are arranged at intervals along the X direction and the mounting holes 333 on two adjacent fins 332 are aligned, one refrigerant tube 331 can be inserted into one mounting hole 333 along the X direction so that the refrigerant tube 331 can be connected with the fins 332 in a penetrating way, thereby realizing the positioning connection of the fins 332 and the refrigerant tubes 331, that is, the contact area between the refrigerant tubes 331 and the air in the refrigerant heat exchanger 33 can be remarkably increased by the fins 332 arranged at intervals. Because each fin 332 can form an integrated arcuate sheet structure through the first connecting piece 3321, the second connecting piece 3322 and the third connecting piece 3323 which are connected in a bending manner, the refrigerant tube 331 can be conveniently installed through the opening. Based on this, the refrigerant heat exchanger 33 having an approximately integrated structure can be formed by the plurality of fins 332 and the plurality of refrigerant tubes 331, thereby avoiding a complicated operation in the assembling and splicing process of the split-multi-fold type heat exchanger. Further, in the case of an air duct machine, the heat exchange area of the refrigerant heat exchanger 33 may be increased by the fin 332 having the arcuate structure in the housing chamber of the indoor unit having a limited height (i.e., Z direction), thereby improving the heat exchange efficiency of the air conditioner 100.

In some embodiments, as shown in fig. 8, fig. 8 is a side view of one of the fins 332 shown in fig. 7. Along the Z-direction, the dimension that may define the two opposing edges of the second connecting piece 3322 is its length dimension. Along the Y-direction, two opposite edge dimensions of the second connecting piece 3322 may be defined as its width dimension. Wherein the Y direction, the Z direction, and the X direction shown in fig. 5 may be perpendicular to each other. Based on this, the fin 332 may have an inlet air contour line 3324 and an outlet air contour line 3325, and the inlet air contour line 3324 and the outlet air contour line 3325 may be two edges of the fin 332 oppositely disposed in the Y direction. The air intake side edge of the fin 332 in the Y direction may be defined as the air intake contour 3324, i.e., the side of the fin 332 shown in fig. 7 adjacent to the fan assembly 60.

By way of example, with continued reference to fig. 8, the intake profile 3324 may include an intake first profile 33241, an intake second profile 33242, and an intake third profile 33243. And the outlet profile 3325 may include an outlet first profile 33251, an outlet second profile 33252, and an outlet third profile 33253. The air intake first contour line 33241 and the air outlet first contour line 33251 are two edges of the first connecting piece 3321 which are oppositely disposed in the Y direction. The air inlet second contour line 33242 and the air outlet second contour line 33252 are two edges of the second connecting piece 3322 which are oppositely arranged in the Y direction. The air intake third profile 33243 and the air outlet third profile 33253 are two edges of the third connecting piece 3323 that are oppositely disposed in the Y direction. So that the shape of the inlet air profile 3324 may partially or fully coincide with the shape of the outlet air profile 3325.

In the Z direction, one end of the inlet first contour 33241 can be connected to one end of the first edge line 3326, e.g., the inlet first contour 33241 can be connected to the first edge line 3326 by a rounded corner. Alternatively, the end of the air inlet first contour line 33241 near the first edge line 3326 may be a straight line structure and connected to one end of the first edge line 3326. The other end of the inlet first profile 33241 can be connected to one of the ends of the inlet second profile 33242 by a rounded or chamfered corner, and the other end of the inlet second profile 33242 can be connected to one of the ends of the inlet third profile 33243 by a rounded or chamfered corner. The other end of the inlet third profile 33243 can be connected to one end of the second edge line 3327, such as the inlet third profile 33243 can be connected to the second edge line 3327 by rounded corners. Alternatively, the inlet third profile 33243 can be linear at an end proximate to the second edge line 3327 and connected to an end of the second edge line 3327. In this manner, since both ends of the intake second contour 33242 can be connected to the intake first contour 33241 and the intake third contour 33243 by rounded corners or chamfers. Thus, on the windward side of the fin 332, the two rounded corner structures can smoothly connect the windward side edges of the fin 332, which is beneficial to guiding out condensed water.

Taking the example that the air inlet first contour line 33241 is close to one end of the first edge line 3326 along the Z direction, when the first edge line is connected by a chamfer or rounded corner structure, one end of the air inlet contour line 3324 close to the first edge line 3326 can be bent towards the air outlet contour line 3325 to form a chamfer or rounded corner structure, so that a smaller fin included angle is avoided between the first edge line 3326 and the air inlet first contour line 33241. Correspondingly, the air inlet third profile 33243 can be bent towards the air outlet profile 3325 near one end of the second edge line 3327 to form a chamfer or rounded corner structure connected with the second edge line 3327. And the shape and size of the air outlet contour line 3325 may be the same as the shape and size of the air inlet contour line 3324.

For example, the shape and the dimensions of the air inlet second contour line 33242 and the air outlet second contour line 33252 may be the same, that is, the shape and the dimensions of two opposite edges of the second connecting piece 3322 in the second straight line direction are the same. Based on this, in connection with fig. 9, fig. 9 is a schematic view of a structure in which a plurality of fins 332 shown in fig. 8 are arranged in succession. The plurality of (e.g., two) fins 332 may be sequentially arranged along the Y direction, and two edges of two adjacent fins 332 that are close to each other may be at least partially attached, so that one air inlet second contour line 33242 and one air outlet second contour line 33252 may completely coincide. That is, the inlet air second contour line 33242 and the outlet air second contour line 33252, which are adjacent to each other, of the two fins 332 disposed adjacently in the Y direction may completely coincide. In one fin 332, the inlet air second contour 33242 of the fin 332 may be completely overlapped with the outlet air second contour 33252 after being translated in the Y direction. So that the edge of the air inlet second contour line 33242 between two adjacent fins 332 and the edge of the air outlet second contour line 33252 can be completely attached to each other, thereby avoiding cutting scraps generated between two adjacent second connecting pieces 3322 during cutting production.

It is apparent that between the two fins 332 where the inlet air second contour 33242 and the outlet air second contour 33252 completely coincide. Other positions of the air inlet contour line 3324 except the air inlet second contour line 33242 are provided with gaps along the Y direction and corresponding positions of the air outlet contour line 3325, so that edges of the corresponding two fins 332 can be arranged at intervals, i.e. fewer gaps are formed. In this way, the fins 332 can be continuously cut and manufactured on a larger sheet plate through a shearing process or a punching and cutting process, and as fewer gaps exist between two adjacent fins 332 along the Y direction, fewer processing scraps are generated between two adjacent fins 332 in the process of continuously cutting and manufacturing the fins 332 in the above manner, so that the utilization efficiency of raw materials in the process of manufacturing the fins 332 is improved.

It should be noted that, if the overlap ratio between the air inlet profile 3324 and the air outlet profile 3325 is higher, less waste is generated between two adjacent fins 332 during the process of manufacturing the fins 332 by the continuous cutting process. For example, the other positions of the air inlet contour line 3324 except the air inlet second contour line 33242 may be overlapped with the corresponding positions of the air outlet contour line 3325 along the Y direction, so that the edges of the two corresponding fins 332 may be disposed in a fitting manner, for example, the two adjacent fins 332 may be disposed in a complete fitting manner along the Y direction. Only the inlet air contour 3324 on the same fin 332 can completely coincide with the outlet air contour 3325 after being translated along the Y direction, so that no waste is generated between two adjacent fins 332 in the process of continuously cutting the fins 332. The air inlet contour line 3324 refers to an edge of a side (e.g., a side close to the air inlet) of the fin 332 close to the air inlet in the air flow direction, and the air outlet contour line 3325 refers to an edge of a side (e.g., a side close to the air outlet) of the fin 332 close to the air outlet in the air flow direction.

In the above embodiments, the case was described in which the two directions were parallel to each other. Taking the example of the inlet air contour 3324 including the inlet air first contour 33241, the inlet air second contour 33242, and the inlet air third contour 33243. When the plurality of fins 332 are sequentially arranged along the Y direction, two edges of the two fins 332 close to each other are at least partially fitted, so that one air inlet second contour line 33242 and one air outlet second contour line 33252 completely coincide. At this time, between the two fins 332, the inlet air first contour line 33241 and the outlet air first contour line 33251 are at least partially overlapped or partially or completely spaced apart along Y. The inlet third profile 33243 and the outlet third profile 33253 are either at least partially coincident or partially or completely spaced along Y. The problem of a portion of one of the fins 332 overlapping the other fin in the X direction does not occur, where the two fins 332 can be considered to lie in two parallel or intersecting planes.

With continued reference to fig. 8, if the first connecting piece 3321 and the third connecting piece 3323 are bent toward the same side of the second connecting piece 3322 along the Y direction, both ends of the air outlet contour line 3325 are bent toward the air inlet contour line 3324 along the Y-preventive line. Along the Z direction, an edge of the first connecting piece 3321 away from the second connecting piece 3322 may be a first edge line 3326, and an edge of the third connecting piece 3323 away from the second connecting piece 3322 may be a second edge line 3327, the first edge line 3326 may be a linear structure extending along the Y direction, the first edge line 3326 is located between the air inlet contour line 3324 and the air outlet contour line 3325, and two ends of the first edge line 3326 may be connected with the air inlet contour line 3324 and the air outlet contour line 3325. Correspondingly, the second edge line 3327 is located between the air inlet contour line 3324 and the air outlet contour line 3325, and two ends of the second edge line 3327 can be connected with the air inlet contour line 3324 and the air outlet contour line 3325. The second edge line 3327 and the first edge line 3326 may be disposed parallel to each other, that is, the second edge line 3327 and the first edge line 3326 are both linear structures extending in the Y direction. Based on this, in connection with fig. 9, after the plurality of fins 332 are sequentially arranged in the Y direction, since both the first edge line 3326 and the second edge line 3327 may be disposed to extend in the Y direction, both side edges of the fins 332 in the Z direction may be parallel to each other and extend in the Y direction. In this way, during the process of manufacturing the fin 332 by the continuous cutting process, the both side edges of the processed plate material in the Z direction do not generate scraps.

It should be noted that the size and shape of the air inlet contour line 3324 and the air outlet contour line 3325 may be identical. That is, the air inlet contour line 3324 may completely coincide with the air outlet contour line 3325 after being translated along the Y direction, and in the Y direction, the air inlet contour line 3324 and the air outlet contour line 3325 have the same distance on the first connecting piece 3321, the second connecting piece 3322 and the third connecting piece 3323. And the second edge line 3327 and the first edge line 3326 are each a straight line structure extending in the Y direction. In this way, among the plurality of fins 332 that are sequentially arranged in contact in the Y direction, the air inlet profile 3324 and the air outlet profile 3325 between two adjacent fins 332 may be completely fitted so that there is no gap between the two adjacent fins 332. The plurality of first edge lines 3326 may be connected in the Y direction to form a straight line structure, and the plurality of second edge lines 3327 may be connected in the Y direction to form a straight line structure. In this regard, in the process of manufacturing the fins 332 by the continuous cutting process, for example, the processing raw material is a continuous rectangular sheet, and the width of the rectangular sheet may be an integer multiple of the pitch dimension of the first edge line 3326 and the second edge line 3327, and no scrap is generated in the process of continuously cutting the fins 332 except for the end portion at the start of the processing and the tail portion at the end of the processing. The utilization rate of raw materials can be effectively improved, and high-precision equipment for processing and cutting is not influenced by leftover materials in the processing and cutting process.

Referring to fig. 8, both ends of the air inlet contour line 3324 along the Z direction may have a straight line structure or an arc angle structure for connecting the first edge line 3326 and the second edge line 3327. For example, an end of the air intake contour 3324 near the first edge line 3326 along the Z-direction may be connected to the first edge line 3326 by a rounded corner structure. The rounded corner structure may be part of the inlet air contour 3324. Correspondingly, one end of the air inlet contour line 3324, which is close to the second edge line 3327 along the Z direction, may also be connected with the second edge line 3327 through a rounded corner structure. And the rounded structure may likewise be part of the air intake contour 3324. So that the first edge line 3326 and the second edge line 3327 can maintain a straight line structure extending in the Y direction. In this way, on the windward side of the fin, the arrangement of the two fillet structures can improve the flow field near the contact position of the fin 332 and the air, which is beneficial to reducing the noise of the fin 332 caused by vibration.

Further, as shown in fig. 10, fig. 8 is a side view of the second type fin 332 of the refrigerant heat exchanger 33 shown in fig. 7. The end of the air inlet contour line 3324 near the first edge line 3326 along the Z direction may be a straight line structure, and the air inlet contour line 3324 at the straight line structure may be connected with the first edge line 3326. Correspondingly, one end of the air inlet contour line 3324, which is close to the second edge line 3327 along the Z direction, may also be a straight line structure, and the air inlet contour line at the straight line structure may be connected with the second edge line 3327. Based on this, since the air outlet contour line 3325 and the air inlet contour line 3324 may be completely overlapped, two ends of the first connecting piece 3321 and the third connecting piece 3323 which are far away from each other in the Z direction may be in a rectangular or rhombic parallelogram sheet structure, which has a simple structure and is convenient for production and processing.

It should be noted that, in the case where the air inlet contour line 3324 may completely coincide with the air outlet contour line 3325, two ends of the air outlet contour line 3325 along the Z direction may be connected to the first edge line 3326 and the second edge line 3327 by a straight line structure and/or a rounded corner structure, and only the air inlet contour line 3324 on the same fin 332 may have the same extending shape. For example, taking the air intake contour line 3324 as an example, one end of the air intake contour line 3324 may be connected to the first edge line 3326 by a rounded structure, and the other end of the air intake contour line 3324 may be connected to the second edge line 3327 by a straight structure. Or one end of the air inlet contour line 3324 is connected with the first edge line 3326 through a straight line structure, and the other end of the air inlet contour line 3324 can be connected with the second edge line 3327 through a round corner structure. The application is not limited in this regard.

Because the air outlet contour line 3325 may completely coincide with the air inlet contour line 3324, based on this, as shown in fig. 8, one end of the air outlet first contour line 33251 may be connected with the other end of the first edge line 3326, for example, the air outlet first contour line 33251 may be connected with the first edge line 3326 by a chamfer or a rounded corner. The other end of the air-out first contour line 33251 may be connected to one end of the air-out second contour line 33252 by a rounded corner or a chamfer, and the other end of the air-out second contour line 33252 may be connected to one end of the air-out third contour line 33253 by a rounded corner or a chamfer. The other end of the air-out third profile 33253 can be connected to the other end of the second edge line 3327, e.g., the air-out third profile 33253 can be connected to the second edge line 3327 by a chamfer or a rounded corner.

In the above embodiment, as shown in fig. 8, the air inlet second contour line 33242 and the air outlet second contour line 33252 may be regarded as two opposite edges of the second connecting piece 3322 along the Y direction. The inlet air first contour line 33241 and the outlet air first contour line 33251 can be regarded as two opposite edges of the first connecting piece 3321 in the Y direction. The inlet third profile 33243 and the outlet third profile 33253 can be considered as two opposite edges of the third connecting tab 3323 in the Y direction.

The length of the air inlet second contour line 33242 in the Z direction is the same as the length of the air outlet second contour line 33252. The length dimension of the air inlet second contour line 33242 in the Z direction, that is, the length dimension of the second connecting piece 3322, can be adjusted as needed, which is not limited by the present application.

For the rounded structures and the straight structures in the above embodiments, the straight structures can be regarded as a part of the intake first contour 33241 and the intake third contour 33243 connected thereto. The rounded corner structure may be considered as part of the inlet first profile 33241 and the inlet third profile 33243, or as part of the inlet profile 3324, as well as the inlet first profile 33241 and the inlet third profile 33243, respectively. And the rounded structures and straight structures in the air outlet contour 3325 may be arranged with reference to the air inlet contour 3324.

In the embodiment of the present application, as shown in fig. 10, the first connecting piece 3321 is bent in the Y direction toward the connected second connecting piece 3322, and the third connecting piece 3323 and the first connecting piece 3321 are bent in the same direction. It may be defined that the air intake first contour line 33241 and the air intake second contour line 33242 are both in a straight line structure, and an included angle α formed by the air intake first contour line 33241 and the air intake second contour line 33242 is 110 ° to 160 °, that is, an included angle range formed by bending connection of the first connection piece 3321 and the second connection piece 3322 is 110 ° to 160 °, and in combination with fig. 7, an offset angle of the air intake first contour line 33241 toward the fan assembly 60 along the Y direction is 20 ° to 80 °. Correspondingly, the air inlet second contour line 33242 and the air inlet third contour line 33243 may also have a linear structure, and an included angle α formed by the air inlet third contour line 33243 and the air inlet second contour line 33242 is 110 ° to 160 °, that is, an included angle range formed by bending and connecting the third connecting piece 3323 and the second connecting piece 3322 is 110 ° to 160 ° in combination with fig. 7, and an offset angle of the air inlet third contour line 33243 toward the fan assembly 60 along the Y direction is 20 ° to 80 °.

The offset angles of the first connecting piece 3321 and the third connecting piece 3323 in the Y direction may be the same, so that the central axis parallel to the Y direction on the second connecting piece 3322 of the rectangular sheet structure may also be the central axis of the fin 332, i.e., the fin 332 is axisymmetric about the central axis. Further, the offset angles of the first connecting piece 3321 and the third connecting piece 3323 in the Y direction may also be different. When the first connecting piece 3321 and the second connecting piece 3322 are connected by a rounded structure, the radius of the rounded structure may be set to be 10mm to 160mm. The radius of the rounded structures used to connect the second and third connection pieces 3322, 3323 may also be 10mm to 160mm.

Note that, between the first edge line 3326 and the second edge line 3327, the air inlet contour line 3324 and the air outlet contour line 3325 may be connected by a rounded structure. Taking the fin 332 shown in fig. 8 as an example, when the inlet air first contour line 33241 is connected to the first edge line 3326 by a rounded corner structure, the radius of the rounded corner structure may be overlapped with the first edge line 3326 at the connection position with the first edge line 3326. In this way, the width dimension of the fin 332 in the Y direction can be effectively reduced, thereby saving the installation space of the refrigerant heat exchanger 33 (shown in fig. 7), and facilitating shortening of the flow path of condensed water to accelerate drainage. Subsequently, the arc angle of the rounded corner structure can be gradually reduced until the air inlet first contour line 33241 can be connected with the first edge line 3326 through the linear structure, and the air inlet first contour line 33241 has the characteristics of simple structure and convenience in production and processing.

In the embodiment of the present application, referring to fig. 7, for the refrigerant heat exchanger 33 installed in the housing 50, there is a large air flow rate at the position of the refrigerant heat exchanger 33 corresponding to the second connection piece 3322 of the fin 332. Based on this, in order to improve the heat exchange efficiency between the refrigerant heat exchanger 33 and the air, the refrigerant tubes 331 may be arranged densely at the second connection piece 3322. Referring to fig. 8, a plurality of mounting holes 333 arranged along the extending direction of the air inlet profile 3324 or the air outlet profile 3325 may be defined in a row, and each of the mounting holes 333 may be used to mount one refrigerant tube 331. Illustratively, the plurality of mounting holes 333 on the second connecting piece 3322 that are approximately parallel to the second inlet air contour 33242 (i.e., the Z-direction) may be in a row. The first connecting piece 3321 has a plurality of mounting holes 333 aligned approximately parallel to the inlet first contour line 33241. On the third connecting piece 3323, a plurality of mounting holes 333 approximately parallel to the intake third profile 33243 are aligned. In this way, the number of the mounting holes 333 on the second connection piece 3322 may be made larger than the number of the mounting holes 333 on the first connection piece 3321. The number of the mounting holes 333 on the second connection piece 3322 may be larger than the number of the mounting holes 333 on the third connection piece 3323. So that the refrigerant heat exchanger 33 can be arranged with denser refrigerant tubes 331 at the second connecting sheet 3322, thereby effectively improving the heat exchange efficiency of the refrigerant heat exchanger 33 and air in indoor units such as air pipes.

The number of the mounting holes 333 on the first connecting piece 3321 may be the same as or different from the number of the mounting holes 333 on the third connecting piece 3323. For example, two rows of mounting holes 333 may be disposed on the first connection piece 3321 and the third connection piece 3323 for mounting two rows of refrigerant tubes 331, and three rows of mounting holes 333 may be disposed on the second connection piece 3322 for mounting three rows of refrigerant tubes 331, so that the refrigerant heat exchanger 33 has a good heat exchange efficiency.

In addition, in order to provide more mounting holes 333 per unit area on the fin 332 for improving the mounting density of the refrigerant tubes 331, each mounting hole 333 and the adjacent mounting holes 333 may be distributed in a staggered manner during the process of providing the mounting holes 333, so that the two adjacent refrigerant tubes 331 after the mounting are also distributed in a staggered manner, and the effective contact area between the refrigerant tubes 331 and the flowing air is improved. Illustratively, between two adjacent columns of mounting holes 333, along the direction of arrangement of the plurality of mounting holes 333 in one column, one of the mounting holes 333 in one column may be aligned with the gap between two adjacent mounting holes 333 in the other column so that the refrigerant tube 331 may be in sufficient contact with the air flowing through the gap.

Among the plurality of mounting holes 333 in the same column, the direction of the interval arrangement of the plurality of mounting holes 333 is approximately parallel to the corresponding air inlet contour line 3324 or air outlet contour line 3325. As shown in fig. 11, fig. 11 is a partial schematic structural view of the second connecting piece 3322 shown in fig. 8. Taking the example that three rows of mounting holes 333 are provided on the second connecting piece 3322 of the fin 332, in a row of mounting holes 333 sequentially arranged along the direction of the air inlet second connecting piece 33242 (or the air outlet second connecting piece 33252), if the axes of two adjacent mounting holes 333 are connected, it is known that the axis connecting lines of the three mounting holes 333 sequentially arranged can be in an obtuse angle fold line structure, so that the dislocation arrangement of the plurality of mounting holes 333 in the Z direction is realized. Thus, under the condition that the distance between two adjacent refrigerant pipes 331 is unchanged, the plurality of mounting holes 333 arranged in a staggered arrangement mode can be arranged on the premise that the lengths of the air inlet contour line 3324 and the air outlet contour line 3325 are limited, namely, the heat exchange efficiency of the refrigerant heat exchanger 33 is improved by improving the mounting density of the refrigerant pipes 331.

In other embodiments, as shown in fig. 12, fig. 12 is a side view of another fin 332 in the refrigerant heat exchanger according to the embodiment of the present application. The fin 332 includes a first connecting piece 3321, a second connecting piece 3322, and a third connecting piece 3323 which are sequentially bent in the Z direction, and the first connecting piece 3321 and the third connecting piece 3323 may be bent toward the same side of the second connecting piece 3322 having a rectangular structure in the Y direction. Based on this, the fin 332 may further include a fourth connecting piece 3328, a fifth connecting piece 3329, and a sixth connecting piece 33210. The opposite ends of the fourth connecting piece 3328 along the Y direction may be respectively connected with the third connecting piece 3323 and the fifth connecting piece 3329 in a bending manner, the fourth connecting piece 3328 may have a rectangular sheet structure similar to the second connecting piece 3322 in shape, and the third connecting piece 3323 and the fifth connecting piece 3329 may be bent toward the same side of the fourth connecting piece 3328 along the Y direction to form a fin 332 structure similar to an S shape. In this way, the sixth connecting piece 33210 of rectangular structure may be connected at an end of the fifth connecting piece 3329 in the Z direction away from the fourth direction so that the sixth connecting piece 33210, the fourth connecting piece 3328, and the second connecting piece 3322 are arranged approximately in parallel.

With continued reference to fig. 12, since the inlet and outlet contours 3324, 3325 may be two oppositely disposed edges of the first, second, third, fourth, fifth and sixth connection pieces 3321, 3322, 3323, 3328, 3329, 33210 in the Y-direction. In this way, the first edge line 3326 may be a side edge of the first connecting piece 3321 away from the second connecting piece 3322 in the Z direction, but the second edge line 3327 is located at a side edge of the sixth connecting piece 33210 away from the fourth connecting piece 3328 in the Z direction. The first edge line 3326 and the second edge line 3327 may be disposed parallel to each other, and the air inlet profile line 3324 may have the same interval between any position and the air outlet profile line 3325 in the Y direction. Referring to fig. 13, fig. 13 is a schematic view of a structure in which a plurality of fins 332 shown in fig. 12 are arranged in series. Thus, after the plurality of fins 332 are sequentially arranged along the Y direction, since the first edge line 3326 and the second edge line 3327 may be disposed to extend along the Y direction, the two side edges of the fins 332 in the Z direction may be parallel to each other and extend along the Y direction, and the air inlet profile 3324 and the air outlet profile 3325 adjacent to each other between two adjacent fins 332 may be approximately overlapped to form an approximately continuous seamless rectangular sheet plate. As such, no additional scrap is generated during the fabrication of the fins 332 by the continuous cutting process, except at the end-to-end ends.

In other embodiments, as shown in fig. 14, fig. 14 is a side view of a fin 332 in a refrigerant heat exchanger 33 according to an embodiment of the present application. The first connecting piece 3321 and the third connecting piece 3323 are connected to opposite ends of the second connecting piece 3322 along the Z direction, so that the first connecting piece 3321 can be bent toward one side of the second connecting piece 3322 along the Y direction, and the third connecting piece 3323 can be bent toward the other side of the second connecting piece 3322 along the Y direction, and the integral fin 332 with a sheet structure can be formed. The plurality of fins 332 may be arranged at intervals along the first straight line direction, and one refrigerant pipe may be inserted into each row of the mounting holes 333 aligned along the first straight line direction, so as to form a multi-fold heat exchanger having a zigzag structure with a large angle to adapt to ductwork machines of different inner spaces. Therefore, the heat exchange efficiency of the heat exchanger is prevented from being influenced by the arrangement of the joint, and the assembling operation steps of the multi-fold heat exchanger which are connected to form the integral structure are simpler.

Based on this, as shown in fig. 15, fig. 15 is a schematic structural view of a plurality of fins 332 shown in fig. 14 arranged in succession. After the plurality of fins 332 are sequentially arranged along the Y direction, since the first edge line 3326 and the second edge line 3327 may be disposed to extend along the Y direction, two side edges of the fins 332 in the Z direction may be parallel to each other and extend along the Y direction, and the air inlet profile line 3324 and the air outlet profile line 3325 adjacent to each other between two adjacent fins 332 may be approximately overlapped to form an approximately continuous seamless rectangular sheet plate. In this manner, no additional scrap is generated during the fabrication of the fins 332 by the continuous cutting process, except at the end-to-end ends.

It should be noted that the refrigerant heat exchanger 33 composed of the multi-folded fins 332 provided in the embodiment of the present application may be applied to an indoor unit of the air conditioner 100 such as an air pipe machine, a wall mounted machine, a cabinet machine, etc., may also be applied to an outdoor unit in a special scene, and may also be used as an evaporator or a condenser in an air conditioner integrated machine, which is not limited in this aspect of the present application.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (10)

1. An air conditioner, comprising:

a housing;

the fan assembly is positioned in the shell;

the cooling medium heat exchanger is arranged in the shell, and the fan assembly is used for driving air to flow through the cooling medium heat exchanger; the refrigerant heat exchanger includes:

A refrigerant pipe;

the fins are of an integrated planar sheet structure, the fins are arranged at intervals along a first linear direction, and the refrigerant pipe penetrates through the fins along the first linear direction and is in contact connection with the fins; the fin includes:

a first connecting piece;

the second connecting piece is provided with two edges which are oppositely arranged along a second straight line direction, and the shape and the size of the two edges are the same;

the first connecting piece and the third connecting piece are connected to the opposite ends of the second connecting piece along a third linear direction; the first connecting piece is connected with the second connecting piece in a bending way, and the second connecting piece is connected with the third connecting piece in a bending way; the first linear direction, the second linear direction and the third linear direction are perpendicular to each other.

2. The air conditioner of claim 1, wherein the fin has an air inlet contour line and an air outlet contour line, and the air inlet contour line and the air outlet contour line are two edges of the fin oppositely disposed in a second straight line direction;

the fin is further provided with a first edge line and a second edge line, two opposite edges of the fin are the first edge line and the second edge line along the third linear direction, and the first edge line is one side edge of the first connecting sheet far away from the second connecting sheet;

The first edge line and the second edge line are arranged in parallel and extend along the second straight line direction; along the second straight line direction, the first edge line is connected with one end of the air inlet contour line and one end of the air outlet contour line, and the second edge line is connected with the other end of the air inlet contour line and the other end of the air outlet contour line.

3. The air conditioner of claim 2, wherein the air intake contour is the same shape and size as the air outlet contour.

4. The air conditioner of claim 2, wherein an air intake side edge of the fin along the second straight line direction is the air intake contour line, the air intake contour line further comprising:

the edge, close to the air inlet side, of the first connecting piece along the second linear direction is the air inlet first contour line;

one end, close to the first edge line, of the air inlet first contour line along the third linear direction is connected with one end of the first edge line through a round angle; or alternatively, the process may be performed,

the air inlet first contour line is of a linear structure along the third linear direction, and one end of the air inlet first contour line, which is close to the first edge line, is connected with one end of the first edge line.

5. The air conditioner of claim 4, wherein the air intake contour line includes an air intake second contour line, and an edge of the second connecting piece, which is close to the air intake side along the second straight line direction, is the air intake second contour line;

and one end, far away from the first edge line, of the air inlet first contour line along the third linear direction is connected with one end of the air inlet second contour line through a round angle or a chamfer angle.

6. The air conditioner according to any one of claims 1 to 5, wherein a plurality of mounting holes are provided in each of the fins, the plurality of fins are arranged at intervals in the first straight line direction, and the plurality of mounting holes in any two of the fins are aligned in the first straight line direction;

the number of the refrigerant pipes is multiple, the refrigerant pipes are arranged in one-to-one correspondence with the mounting holes on one fin, and one refrigerant pipe extends along the first linear direction and is inserted into the mounting holes arranged in an aligned mode;

the number of the mounting holes in the second connecting sheet is larger than that in the first connecting sheet; and/or the number of the groups of groups,

the number of the mounting holes in the second connecting piece is larger than that in the third connecting piece.

7. The air conditioner according to any one of claims 1 to 5, wherein the first connecting piece and the third connecting piece are bent toward the same side of the second connecting piece in a second straight direction.

8. The air conditioner of claim 7, wherein the fins have an axisymmetric structure, and the symmetry axes of the fins are parallel to the second straight line direction; and/or the number of the groups of groups,

the second connecting sheet is of a rectangular structure.

9. The air conditioner according to any one of claims 1 to 5, wherein the first connecting piece is provided to be bent toward one side of the second connecting piece and the third connecting piece is provided to be bent toward the other side of the second connecting piece in the second straight direction.

10. The air conditioner according to any one of claims 1 to 5, wherein an included angle formed by bending connection of the first connecting sheet and the second connecting sheet is in a range of 110 ° to 160 °; and/or the number of the groups of groups,

and an included angle formed by bending and connecting the third connecting sheet and the second connecting sheet is 110-160 degrees.