CN217383305U - Air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner relates to domestic appliance technical field, and this air conditioner includes shell, fan and heat exchanger, and wherein, the shell has the installation cavity, sets up the air outlet that is linked together with the installation cavity on the installation cavity. The fan is arranged in the mounting cavity and is communicated with the air outlet. The heat exchanger is installed in the installation cavity, and the heat exchanger includes first pressure manifold, second pressure manifold and a plurality of first microchannel, and a plurality of first microchannels stack up and the interval sets up, and the one end of first microchannel links to each other with first pressure manifold, and the other end of first microchannel links to each other with the second pressure manifold. The first microchannel is provided with a straight line part and a first bending part communicated with the straight line part, the straight line part is arranged between the fan and the air outlet, and the first bending part is arranged around one part of the periphery of the fan. The utility model is used for refrigerate or heat.

Description

Air conditioner

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to an air conditioner.

Background

With the improvement of the social living standard of people, the air conditioner becomes an indispensable household appliance in family life, and the current air conditioner mainly adopts a copper tube fin type heat exchanger and is difficult to meet the use requirement of the current environment-friendly refrigerant on the charging amount. And the aluminum inserted sheet type micro-channel heat exchanger has the advantages of higher heat exchange coefficient, lighter weight, less refrigerant charge, lower cost and the like. However, when the aluminum insert type microchannel heat exchanger is used as an air conditioner, the aluminum insert type microchannel heat exchanger occupies more space of the air conditioner, and a shell for accommodating the heat exchanger is larger, so that the production cost of the air conditioner is increased.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an air conditioner has solved the interior aluminium system inserted sheet formula microchannel heat exchanger of air conditioner and has taken the more problem in air conditioner content receiving space.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

an embodiment of the utility model provides an air conditioner, including shell, fan and heat exchanger, wherein, the shell has the installation cavity, has seted up on the installation cavity and has been linked together the air outlet with the installation cavity. The fan is arranged in the mounting cavity and is communicated with the air outlet. The heat exchanger is installed in the installation cavity, and the heat exchanger includes first pressure manifold, second pressure manifold and a plurality of first microchannel, and a plurality of first microchannels stack up and the interval sets up, and the one end of first microchannel links to each other with first pressure manifold, and the other end of first microchannel links to each other with the second pressure manifold. The first microchannel is provided with a straight line part and a first bending part communicated with the straight line part, the straight line part is positioned between the fan and the air outlet, and the first bending part is arranged around one part of the periphery of the fan.

Under this condition, the installation cavity of this application shell can be used for installing fan and heat exchanger to the air outlet intercommunication of fan and shell, because the heat exchanger is located between fan and the air outlet, consequently, when the heat exchanger during operation, the fan can blow the heat or the cold volume of heat exchanger to the air outlet. Specifically, the refrigerant via the heat exchanger can pass through the first pressure collecting pipe, the second pressure collecting pipe and a plurality of first microchannels of heat exchanger, and first microchannel has straight line portion and first kink, and straight line portion is located and gives off cold volume or thermal partly as the heat exchanger between fan and the air outlet, thereby first kink sets up around the fan and makes the space that occupies the installation intracavity as little as possible of heat exchanger to make the shell size littleer, practice thrift the cost.

Further, the number of the second headers is at least two. The heat exchanger further comprises a plurality of second micro-channels, the stacked second micro-channels are located between the two adjacent second collecting pipes, and the two ends of each second micro-channel are respectively communicated with the two adjacent second collecting pipes.

Furthermore, the second micro-channel is provided with a second bent part, and the second bent part is arranged around one part of the periphery of the fan.

Further, the heat exchanger still includes a plurality of fins, and a plurality of fins are range upon range of and the interval sets up, have seted up a plurality of draw-in grooves on the fin, draw-in groove and first microchannel or second microchannel joint.

Furthermore, the heat exchanger also comprises a liquid inlet pipe, a liquid outlet pipe and a partition plate, wherein the liquid inlet pipe is communicated with the first collecting pipe. The liquid outlet pipe is communicated with the first collecting pipe. The partition plate is arranged in the first collecting pipe and connected with the inner wall of the first collecting pipe, so that the first collecting pipe is internally divided into two accommodating cavities, namely a first accommodating cavity and a second accommodating cavity, wherein the first accommodating cavity is communicated with the liquid outlet pipe, and the second accommodating cavity is communicated with the liquid inlet pipe.

Furthermore, the heat exchanger also comprises a first connecting pipe and a second connecting pipe, wherein the first connecting pipe is arranged between the liquid inlet pipe and the first collecting pipe and is communicated with the liquid inlet pipe and the first collecting pipe. The second connecting pipe is arranged between the liquid outlet pipe and the first collecting pipe and communicated with the liquid outlet pipe and the first collecting pipe.

Further, the heat exchanger also comprises a first end cover and a second end cover. The first end covers are arranged at two ends of the first collecting pipe and connected with the first collecting pipe. The second end covers are arranged at two ends of the second collecting pipe and connected with the first collecting pipe.

Further, the heat exchanger is a condenser, and the air conditioner further comprises an evaporator, a compressor, a throttling device and a gas-liquid separator. The outlet of the evaporator is communicated with the inlet of the gas-liquid separator, the outlet of the gas-liquid separator is communicated with the inlet of the compressor, the outlet of the compressor is communicated with the liquid inlet pipe of the condenser, the liquid outlet pipe of the condenser is connected with the throttling device, and the throttling device is also communicated with the inlet of the evaporator.

Furthermore, the first microchannel has a clamping surface, the clamping surface is abutted against the inner wall of the clamping groove, and the clamping surface has a first direction and a second direction perpendicular to the first direction. The first direction is an extending direction of the first microchannel. The fins extend out of the first micro-channel by 2-8 mm in the second direction.

Further, under the condition that the first microchannel is clamped with the fin, one part of the first microchannel is bent along one side of the fin, which is not provided with the clamping groove, to form a first bent part, and the other part of the first microchannel is used as a straight part.

Drawings

Fig. 1 is a schematic view of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a heat exchanger of FIG. 1 according to an embodiment of the present disclosure;

fig. 3 is a flow chart of the flow of the cooling liquid in the air conditioner according to the embodiment of the present application;

FIG. 4 is a schematic view of another heat exchanger provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a micro channel group a and a micro channel group b of a heat exchanger and a fan according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another heat exchanger provided in an embodiment of the present application;

FIG. 7 is a schematic view of another heat exchanger provided in an embodiment of the present application;

FIG. 8 is a schematic view of another heat exchanger provided in an embodiment of the present application;

FIG. 9 is a schematic view of another heat exchanger provided in an embodiment of the present application;

FIG. 10 is a schematic illustration of the fin of FIG. 9 provided by an embodiment of the present application;

FIG. 11 is a schematic view of a fin and a first microchannel provided in an embodiment of the present application;

FIG. 12 is a schematic diagram of the relationship between a platen, a clamp, and a heat exchanger provided in an embodiment of the present application;

FIG. 13 is a schematic view of a first microchannel provided in an embodiment of the present application;

fig. 14 is a schematic view of another fin and a first microchannel according to an embodiment of the present disclosure.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, 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 mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The air conditioner has the functions of refrigeration and heating, has wide market prospect, and is adopted by household and commercial use. Heat exchangers in air conditioners are important constituent parts, and the heat exchangers are classified into fin 42 type heat exchangers and aluminum insert type microchannel heat exchangers according to structural differences. Along with the development of aluminium system inserted sheet formula microchannel heat exchanger technique, the internal structure form of air conditioner is being influenced to a certain extent to the structure of aluminium system inserted sheet formula microchannel heat exchanger, and the inside structural style of air conditioner has decided microchannel heat exchanger's usage space, for better matching air conditioner internal space structure, the performance that needs to guarantee the air conditioner simultaneously satisfies the operation requirement. Accordingly, the present application provides an air conditioner as shown in fig. 1.

The embodiment of the utility model provides an air conditioner 100, as shown in fig. 1, this air conditioner 100 can include shell 1, fan 2 and heat exchanger 3, and wherein, shell 1 has installation cavity 11, offers air outlet 111 and the air intake (not shown in fig. 1) that is linked together with installation cavity 11 on the installation cavity 11. The fan 2 is installed in the installation cavity 11 and is communicated with the air outlet 111. The heat exchangers 3 are installed in the installation cavity 11, as shown in fig. 2, the number of the heat exchangers 3 is two that are communicated, wherein one heat exchanger 3 includes a first collecting pipe 31, a second collecting pipe 32 and a plurality of first microchannels 33, the plurality of first microchannels 33 are stacked and arranged at intervals, one end of each first microchannel 33 is connected with the first collecting pipe 31, and the other end of each first microchannel 33 is connected with the second collecting pipe 32. The first micro channel 33 has a straight portion 331 and a first bent portion 332 communicating with the straight portion 331, as shown in fig. 1, the straight portion 331 is located between the fan 2 and the air outlet 111, and the first bent portion 332 is disposed around a portion of the periphery of the fan 2.

In this case, as shown in fig. 1 and 2, the installation cavity 11 of the housing 1 of the present application may be used for installing the fan 2 and the heat exchanger 3, and the fan 2 is communicated with the air outlet 111 of the housing 1, and since the heat exchanger 3 is located between the fan 2 and the air outlet 111, when the heat exchanger 3 is in operation, the fan 2 may blow heat or cold of the heat exchanger 3 to the air outlet 111. Specifically, the refrigerant passing through the heat exchanger 3 can pass through the first collecting pipe 31, the second collecting pipe 32 and the plurality of first microchannels 33 of the heat exchanger 3, the first microchannels 33 are provided with linear portions 331 and first bent portions 332, the linear portions 331 are located between the fan 2 and the air outlet 111 and serve as a part of the heat exchanger 3 dissipating cold or heat, and the first bent portions 332 are arranged around the fan 2 so that the heat exchanger 3 occupies the space in the installation cavity 11 as little as possible, so that the size of the housing 1 is smaller, and the cost is saved.

For a clearer explanation of the structure of the heat exchanger 3 of the present application, the heat exchanger 3 is exemplified as the condenser 4, however, the heat exchanger 3 may also be the evaporator 5 in other embodiments of the present application, and the present application is not limited thereto.

When the heat exchanger 3 is used as the condenser 4, as shown in fig. 3, the air conditioner 100 provided by the present application may further include an evaporator 5, a compressor 6, a throttling device 7, and a gas-liquid separator 8. Wherein, the outlet of the evaporator 5 is communicated with the inlet of the gas-liquid separator 8, the outlet of the gas-liquid separator 8 is communicated with the inlet of the compressor 6, the outlet of the compressor 6 is communicated with the condenser 4, the condenser 4 is connected with the throttling device 7, and the throttling device 7 is also communicated with the inlet of the evaporator 5.

In this case, as shown in fig. 3, the high-temperature and high-pressure gas refrigerant flows out of the compressor 6, passes through the condenser 4 to release heat, becomes a low-temperature and high-pressure liquid refrigerant, passes through the throttle device 7 to become a low-temperature and low-pressure liquid refrigerant, then flows through the evaporator 5 to absorb heat, becomes a low-temperature and low-pressure gas refrigerant, passes through the gas-liquid separator 8, flows back to the compressor 6 to be compressed, and enters the next cycle.

The number of the above-mentioned second headers 32 is explained below, for example, in some embodiments of the present application, the single-piece heat exchanger 3 is exemplified, and the number of the second headers 32 is at least two. As shown in fig. 4, which is exemplified by two second collecting pipes 32, the heat exchanger 3 further includes a plurality of second microchannels 34, the plurality of stacked and spaced second microchannels 34 are located between two adjacent second collecting pipes 32, and two ends of each second microchannel 34 are respectively communicated with two adjacent second collecting pipes 32.

In this case, as shown in fig. 4, when the number of the second headers 32 is plural, the second header 32 on the side close to the first header 31 is connected thereto through the first microchannels 33. Wherein the joints between the first header 31, the second header 32 and the first microchannels 33 may be welded. The remaining second headers 32 may be disposed on the side of the second headers 32 away from the first header 31, and second microchannels 34 may be installed between adjacent second headers 32. And the second microchannels 34 are stacked and spaced apart from each other at the upper side. This is done. Compared with the case that only the first microchannel 33 is arranged, the second microchannel 34 is additionally arranged in the heat exchanger 3 for cooling or heat dissipation, so that the heat exchange area of the heat exchanger 3 is larger, and the air conditioner 100 has a stronger cooling or heating effect. The number of the second collecting pipes 32 is not limited in the present application, and may be one or multiple, specifically set according to requirements.

As shown in fig. 4, in order to make the operation of the heat exchanger 3 more stable and the heat exchange effect of different parts the same, in some embodiments of the present application, the first microchannels 33 arranged in a stack have the same distance from top to bottom, and each first microchannel 33 has the same structure. When a plurality of second headers 32 are used, the spacing between the upper and lower adjacent second microchannels 34 may be the same as the spacing between the upper and lower adjacent first microchannels 33, and the second microchannels 34 may have the same structure as the first microchannels 33. Therefore, when the heat exchanger 3 works, the working frequency of each part is the same, which is beneficial to the stable work of the heat exchanger 3.

The second microchannel 34 mentioned above is exemplified below, for example, in some embodiments of the present application, as shown in fig. 5, the second microchannel 34 may also have a second bent portion 341, and the second bent portion 341 is disposed around a part of the periphery of the fan 2.

In this case, as shown in fig. 5, the first microchannels 33 (not shown in fig. 5) between the first header 31 and the second header 32 are referred to as a microchannel group a. The second microchannels 34 (not shown in fig. 5) between adjacent second headers 32 may be grouped into microchannel groups b, although the microchannel groups b may be in multiple rows. Due to the structural limitation of the installation cavity 11 in the housing 1, when the heat exchanger 3 is required to have two or more bending positions, the micro-channel group a and at least one micro-channel group b can be bent. Thereby forming a first bent portion 332 and a plurality of second bent portions 341 (not shown in fig. 5), respectively. Or, a plurality of second bending portions 341 may be formed by bending a plurality of micro channels b, and the micro channel group a is not bent. Specifically, the bending is performed according to the structure of the installation cavity 11 in the actual shell 1.

In other embodiments of the present application, when the heat exchanger 3 generally has one bending position, the bending position may be the first bending portion 332 or only the second bending portion 341, which is not limited in the present application, and the bending position may be adjusted according to the structure of the installation cavity 11 in the housing 1.

Since the first collecting pipe 31, the second collecting pipe 32, the first micro-channel 33 and the second micro-channel 34 all have refrigerant flowing therein, in order to enable the refrigerant to enter the heat exchanger 3 and to exit from the heat exchanger 3 after heat exchange, in some embodiments of the present application, as shown in fig. 6, the heat exchanger 3 may further include a liquid inlet pipe 35, a liquid outlet pipe 36 and a partition plate 37, where the liquid inlet pipe 35 is communicated with the first collecting pipe 31. The outlet pipe 36 communicates with the first header 31. And the joints of the liquid inlet pipe 35 and the liquid outlet pipe 36 with the first collecting pipe 31 can be welded. The partition plate 37 is disposed in the first collecting pipe 31 and connected to the inner wall of the first collecting pipe 31, so that the interior of the first collecting pipe 31 is divided into two accommodating cavities, namely a first accommodating cavity 311 and a second accommodating cavity 312, wherein the first accommodating cavity 311 is communicated with the liquid outlet pipe 36, and the second accommodating cavity 312 is communicated with the liquid inlet pipe 35.

In this case, as shown in fig. 6, the refrigerant enters the second accommodating cavity 312 of the first header 31 from the liquid inlet pipe 35, and because the partition plate 37 is disposed in the first header 31, the refrigerant does not directly enter the first accommodating cavity 311, but first enters the second header 32 via the first microchannel 33 connected to the first header 31, and then flows back to the first accommodating cavity 311 via the first microchannel 33, so that the refrigerant flows out via the liquid outlet pipe 36 connected to the first accommodating cavity 311. In this way, the refrigerant temperature in the first microchannel 33 in the heat exchanger 3 can be made closer together, thereby not causing local overheating or local supercooling. If no partition plate 37 is arranged, a part of the refrigerant entering the first collecting pipe 31 from the liquid inlet pipe 35 directly flows out from the liquid outlet pipe 36, and a temperature difference is formed between the cooling temperature or the heating temperature of the refrigerant in the first micro-channel 33 close to the second collecting pipe 32 and the temperature of the first micro-channel 33 close to one side of the first collecting pipe 31, so that the cooling or heating effect of the air conditioner 100 is uneven, and the user experience is affected.

In order to enable the connection between the first header 31 and the liquid inlet pipe 35 and the liquid outlet pipe 36 of the heat exchanger 3, in some embodiments of the present application, as shown in fig. 7, the heat exchanger 3 may further include a first connection pipe 38 and a second connection pipe 39, where the first connection pipe 38 is disposed between the liquid inlet pipe 35 and the first header 31, and may be connected to the liquid inlet pipe 35 and the first header 31 by welding. The second connecting pipe 39 is disposed between the liquid outlet pipe 36 and the first collecting pipe 31, and may be connected to the liquid outlet pipe 36 and the first collecting pipe 31 by welding.

Thus, as shown in FIG. 7, when the heat exchanger 3 is made of aluminum, the heat exchanger 3 is lighter, and the liquid outlet pipe 36 and the liquid inlet pipe 35 are made of copper. Therefore, in order to enable the connection between the first collecting pipe 31 and the liquid inlet pipe 35 and the liquid outlet pipe 36 to be more stable, the first connecting pipe 38 and the second connecting pipe 39 which are welded in a copper-aluminum professional mode can be adopted, under the condition, the situation that liquid leakage occurs in the unstable connection position of the first collecting pipe 31 and the liquid inlet pipe 35 and the liquid outlet pipe 36 can be avoided, and the use safety is guaranteed.

Since the first header 31 and the second header 32 have a space for flowing refrigerant therein, and are generally of a pipe structure, in order to seal two pipe ends of the first header 31 and the second header 32, in some embodiments of the present application, as shown in fig. 8, the heat exchanger 3 may further include a first end cap 40 and a second end cap 41. The first end caps 40 are disposed at two ends of the first header 31, and may be welded to the first header 31. The second end caps 41 are disposed at two ends of the second header 32, and may be welded to the first header 31.

In this case, as shown in fig. 8, the refrigerant may flow in the first collecting pipe 31 and the second collecting pipe 32, and may not overflow, so that the connection between the first end cap 40 and the first collecting pipe 31 is more stable, and the connection between the second end cap 41 and the second collecting pipe 32 is more stable, in some embodiments of the present application, a welding manner may be adopted between the first end cap 40 and the first collecting pipe 31, and between the second end cap 41 and the second collecting pipe 32, so as to achieve sealing and prevent the refrigerant liquid from flowing out.

In order to maximize the utilization of the cooling or heating effect of the heat exchanger 3, in some embodiments of the present application, as shown in fig. 9, the heat exchanger 3 may further include a plurality of fins 42, the plurality of fins 42 are stacked and spaced apart, a plurality of slots 421 (as shown in fig. 10) are formed in the fins 42, and the slots 421 may be connected to the first microchannels 33 or the second microchannels 34 by welding after being clamped. Note that the stacking direction of the fin 42 is perpendicular to the stacking direction of the first microchannel 33 or the second microchannel 34 (for example, as shown in fig. 9, the extending direction of the first microchannel 33 is horizontal, and the extending direction of the fin 42 is vertical), so that the same fin 42 can be vertically clamped to the microchannel group a or the microchannel group b shown in fig. 5. Of course, a plurality of fins 42 can be inserted into the area of one microchannel group a or one microchannel group b to increase the heating surface or the cooling surface of the heat exchanger 3.

Thus, when the refrigerant flows in the micro channel group a or the micro channel group b, the heat of the refrigerant is transferred to the air passing through the fins 42 through the plurality of fins 42 clamped on the micro channel group a or the micro channel group b, thereby achieving the functions of heating and cooling the air.

In addition, to illustrate the bending direction of the first microchannel 33, for example, in some embodiments of the present invention, as shown in fig. 11, when the first microchannel 33 is engaged with the fin 42, a part of the first microchannel 33 is bent along a side of the fin 42 where the engaging groove 421 is not opened to form a first bent portion 332, and another part of the first microchannel 33 is used as the linear portion 331. The second micro-channel 34 can be bent in the same direction as the first micro-channel 33. In this case, since the welding point between the fin 42 on the side where the engaging groove 421 is formed and the first microchannel 33 reduces the portion where the engaging groove 421 is formed, it is relatively easy to bend the first microchannel 33 away from the fin 42 on the side where the engaging groove 421 is not formed.

Furthermore, conventional aluminum heat exchangers 3 are used in passenger vehicles without bending deformations. The single-cold heat exchanger 3 for household and commercial use can be bent in a folding mode due to the existence of space, but has the problem of space utilization rate. However, the space of the household and commercial air conditioner 100 is limited and the condenser 4 and the evaporator 5 are required. In a limited space, the limited space of the household and commercial air conditioner 100 needs to improve the space utilization rate as much as possible to improve the energy efficiency of the household and commercial air conditioner 100. The aluminum insert type micro channel heat exchanger 3 is a trend of the heat exchanger 3 of the home and business air conditioner 100 due to the demand for the increase of copper price and the improvement of energy efficiency of the home and business air conditioner 100. However, in the development process of the aluminum insert type micro-channel heat exchanger 3, a series of technical problems such as shunting, defrosting and the like need to be overcome, and a large number of process problems such as core manufacturing, brazing, bending and the like need to be solved.

The fins 42 do not fall down when the copper tube fin type heat exchanger core is bent. The reason why the fins 42 are not collapsed is that the fins 42 are strong and resistant to deformation, and the copper pipes can absorb stress. And the core body of the aluminum insert type micro-channel heat exchanger 3 has no mature bending technology, and the fins 42 have serious lodging phenomenon when the core body is bent. The reason why the fin 42 is fallen is that the yield strength of the fin 42 after brazing is seriously lowered. Through structural optimization, the structural strength of the fins 42 is not significantly improved, and the high strength before welding cannot be achieved. The fins 42 are deformed by a slight force.

As shown in fig. 12, the present embodiment concentrates the bending force fixture 10 on the second header 32 at the bent end and the area of the fin 42 near the second header 32. In the bending process, a plastic material pressing plate 9 is adopted in the area of the pressing fin 42 (the arrow direction is the bending direction). The core body bending tool main body of the existing copper tube fin 42 type heat exchanger is not changed, the bending difficulty of the core body of the aluminum insert type micro-channel heat exchanger 3 is solved through adjustment or local optimization, and the application and popularization of the aluminum insert type micro-channel heat exchanger 3 in the air conditioner 100 industry are promoted. The problem of fin 42 lodging phenomenon when the aluminium inserted sheet formula microchannel heat exchanger 3 core is bent is solved, the influence of the deformation of fin 42 to heat exchanger 3 performance is avoided. The bending force can be mostly concentrated on the second header 32. The shape of the contact between the bending tool and the second header 32 is not limited in the present application, and may be a concave surface or a flat surface.

For example, in some embodiments of the present application, as shown in fig. 13, the first microchannel 33 has a clamping surface 331, the clamping surface 331 abuts against an inner wall of the clamping groove 421, and the clamping surface 331 has a first direction L1 and a second direction L2 perpendicular to the first direction L1 and in the same plane as the first direction L1. The first direction L1 is the extending direction of the first microchannel 33. The fins 42 extend 2mm to 8mm in the second direction L2 beyond the length of the first microchannel 33.

In this case, the stress is mainly concentrated on the fin 42 when the conventional aluminum insert type microchannel heat exchanger 3 is bent, which tends to cause the fin 42 to fall down, and therefore, it is necessary to keep the width of the fin 42 consistent with that of the second microchannel 34, so that the second microchannel 34 receives a part of the force when bent, thereby preventing the fin 42 from falling down. And this application will buckle regional setting and be close to the region of second pressure manifold 32, and main stress point is on second pressure manifold 32 to can reduce the influence to fin 42, consequently, this application can set up fin 42 and stretch out first microchannel 332mm ~ 8mm on second direction L2, thereby can increase fin 42's cooling surface, and can improve the phenomenon that fin 42 fell down.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An air conditioner, comprising:

the shell is provided with a mounting cavity, and an air outlet communicated with the mounting cavity is formed in the mounting cavity;

the fan is arranged in the mounting cavity and communicated with the air outlet;

the heat exchanger is arranged in the mounting cavity and comprises a first collecting pipe, a second collecting pipe and a plurality of first micro-channels, the first micro-channels are stacked and arranged at intervals, one end of each first micro-channel is connected with the first collecting pipe, and the other end of each first micro-channel is connected with the second collecting pipe;

the first microchannel is provided with a linear part and a first bending part communicated with the linear part, the linear part is positioned between the fan and the air outlet, and the first bending part is arranged around one part of the periphery of the fan.

2. An air conditioner according to claim 1,

the number of the second collecting pipes is at least two;

the heat exchanger further comprises:

and the second microchannels are stacked and arranged at intervals and are positioned between two adjacent second collecting pipes, and two ends of each second microchannel are respectively communicated with the two adjacent second collecting pipes.

3. The air conditioner of claim 2, wherein the second microchannel has a second bend, the second bend being disposed around a portion of the periphery of the fan.

4. An air conditioner according to claim 2, wherein said heat exchanger further comprises:

the fin structure comprises a plurality of fins, wherein the fins are stacked and arranged at intervals, a plurality of clamping grooves are formed in the fins, and the clamping grooves are connected with the first micro-channel or the second micro-channel in a clamping mode.

5. An air conditioner according to claim 2, wherein said heat exchanger further comprises:

the liquid inlet pipe is communicated with the first collecting pipe;

the liquid outlet pipe is communicated with the first collecting pipe;

and the partition plate is arranged in the first collecting pipe and is connected with the inner wall of the first collecting pipe, so that the first collecting pipe is internally divided into two accommodating cavities, namely a first accommodating cavity and a second accommodating cavity, wherein the first accommodating cavity is communicated with the liquid outlet pipe, and the second accommodating cavity is communicated with the liquid inlet pipe.

6. An air conditioner according to claim 5, wherein said heat exchanger further comprises:

the first connecting pipe is arranged between the liquid inlet pipe and the first collecting pipe and communicated with the liquid inlet pipe and the first collecting pipe;

and the second connecting pipe is arranged between the liquid outlet pipe and the first collecting pipe and is communicated with the liquid outlet pipe and the first collecting pipe.

7. An air conditioner according to claim 2, wherein said heat exchanger further comprises;

the first end covers are arranged at two ends of the first collecting pipe and connected with the first collecting pipe;

and the second end covers are arranged at two ends of the second collecting pipe and are connected with the first collecting pipe.

8. The air conditioner according to claim 5, wherein the heat exchanger is a condenser, the air conditioner further comprising an evaporator, a compressor, a throttling device and a gas-liquid separator;

the outlet of the evaporator is communicated with the inlet of the gas-liquid separator, the outlet of the gas-liquid separator is communicated with the inlet of the compressor, the outlet of the compressor is communicated with the liquid inlet pipe of the condenser, the liquid outlet pipe of the condenser is connected with the throttling device, and the throttling device is also communicated with the inlet of the evaporator.

9. The air conditioner according to claim 4, wherein when the first microchannel is engaged with the fin, the first microchannel has an engaging surface which abuts against an inner wall of the engaging groove, and the engaging surface has a first direction and a second direction perpendicular to the first direction; the first direction is the extending direction of the first microchannel;

the fins extend out of the first micro-channel in the second direction by 2-8 mm.

10. The air conditioner according to claim 4, wherein when the first microchannel is engaged with the fin, a part of the first microchannel is bent along a side of the fin where the engaging groove is not formed to form the first bent portion, and another part of the first microchannel is used as the linear portion.

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