Air conditioner

Abstract

An air conditioner (1000) includes a housing (50), a four-way valve (20), and a heat exchanger assembly (30). The heat exchanger assembly (30) comprises a heat exchanger body (33), flow dividing assemblies (34 and 37) and a gas collecting pipe (35). The heat exchanger body (33) comprises a plurality of first flat pipes (331) and a plurality of second flat pipes (332). Two first flat pipes (331) in the plurality of first flat pipes (331) are close to the two ends of the gas collecting pipe (35) in the first direction, and the second direction is perpendicular to the first direction. Between the two first flat pipes (331) close to the two ends of the gas collecting pipe (35), every two second flat pipes (332) and every two first flat pipes (331) are alternately arranged at intervals in the first direction, so that the ends, close to the gas collecting pipe (35), of every two first flat pipes (331) are adjacently arranged, and the ends, close to the flow dividing assemblies (34 and 37), of every two second flat pipes (332) are adjacently arranged.

Description

air conditioner

[0001] This application claims priority to Chinese patent application No. 202211587316.6, filed on December 9, 2022; priority to Chinese patent application No. 202310113886.X, filed on February 14, 2023; and priority to Chinese patent application No. 202320213836.4, filed on February 14, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0003] Air conditioners are common household appliances. Air conditioners, also known as air conditioners, are devices that regulate parameters such as temperature, humidity, and flow rate within a building (or structure). Typically, air conditioners use heat exchangers to transfer heat from a cooler fluid to a warmer one, thereby achieving both cooling and heating. Heat exchangers, also known as heat exchangers, are core components of air conditioners.

[0004] Summary of the Invention

[0005] An air conditioner is provided. The air conditioner includes a housing, a four-way valve, and a heat exchanger assembly. The heat exchanger assembly is mounted within the housing. The heat exchanger assembly includes a heat exchanger body, a diverter assembly, and a manifold. The heat exchanger body is configured to perform heat exchange with a refrigerant. The diverter assembly is configured to divert the refrigerant to improve the uniformity of the refrigerant flowing into the heat exchanger body. The manifold extends along a first direction and is connected to the four-way valve. The diverter assembly and the manifold are located on the same side of the heat exchanger body and are connected to opposite sides of the heat exchanger body along the refrigerant flow direction. The heat exchanger body includes a plurality of first flat tubes and a plurality of second flat tubes. The plurality of first flat tubes are connected to the manifold and arranged along the first direction, and each of the plurality of first flat tubes extends along a second direction. Two of the plurality of first flat tubes are arranged near the ends of the manifold along the first direction, with the second direction being perpendicular to the first direction. The plurality of second flat tubes are connected to the flow diversion assembly and arranged along the first direction, and each of the plurality of second flat tubes extends along the second direction. Between the two first flat tubes near the ends of the gas collecting pipe, every two second flat tubes and every two first flat tubes are alternately and spaced apart along the first direction, so that the ends of every two first flat tubes near the gas collecting pipe are adjacent, and the ends of every two second flat tubes near the flow diversion assembly are adjacent. The end of the first flat tube near the gas collecting pipe is connected to the gas collecting pipe, and the other end of the first flat tube away from the gas collecting pipe is connected to and connected to the other end of the adjacent second flat tube away from the flow diversion assembly. The end of the second flat tube near the flow diversion assembly is connected to and connected to the flow diversion assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. However, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the products involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signals, etc.

[0007] FIG1 is a structural diagram of an air conditioner according to some embodiments;

[0008] FIG2 is a top view of an air conditioner according to some embodiments;

[0009] FIG3 is a block diagram of a heat exchanger assembly according to some embodiments;

[0010] FIG4 is a structural diagram of the second flow diversion assembly shown in FIG3 ;

[0011] FIG5 is another structural diagram of the heat exchanger assembly in FIG3;

[0012] FIG6 is a partial enlarged view of circle E in FIG3 ;

[0013] FIG7 is a schematic diagram illustrating the arrangement of first flat tubes and second flat tubes in a heat exchanger body according to some embodiments;

[0014] FIG8 is a partial enlarged view of circle F in FIG5 ;

[0015] FIG9 is a partial enlarged view of circle G in FIG5 ;

[0016] FIG10 is a structural diagram of the first flow diversion assembly in FIG8 connected to the branch pipe and the plurality of second flat tubes;

[0017] FIG11 is an exploded view of the first diversion assembly in FIG10 ;

[0018] FIG12 is a side view of the second connecting plate of FIG11 ;

[0019] FIG13 is a flow velocity vector diagram of the refrigerant in the third flow guide channel in FIG12;

[0020] FIG14 is a flow velocity vector diagram of the refrigerant in the first guide channel and the second guide channel in FIG12;

[0021] FIG15 is another exploded view of the first diverter assembly in FIG10 ;

[0022] FIG16 is a side view of the fourth connecting plate in FIG15 ;

[0023] FIG17 is a schematic diagram of a flow channel structure of the first flow diversion component in FIG10;

[0024] FIG18 is another exploded view of the first diverter assembly in FIG10 ;

[0025] FIG19 is another exploded view of the first diverter assembly in FIG10 ;

[0026] FIG20 is a schematic diagram of a flow channel structure of the first diversion component in FIG19. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings to clearly and completely describe some embodiments of the present disclosure. However, the embodiments described are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present disclosure.

[0028] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0029] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0030] When describing some embodiments, the word "connected" and its derivatives may be used. The term "connected" should be understood broadly. For example, "connected" can mean fixed, removable, or integrated; it can be directly connected or indirectly connected through an intermediary. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0031] “At least one of A, B, or C” includes the following combinations of A, B, and C: A only, B only, C only, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0032] The use of "adapted to" or "configured to" herein is intended to be open and inclusive language that does not exclude devices adapted or configured to perform additional tasks or steps.

[0033] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0034] As used herein, "parallel," "perpendicular," and "equal" include the stated conditions and conditions approximating the stated conditions within an acceptable range of deviation as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0035] Typically, when the heat exchanger in an air conditioner serves as an evaporator, the refrigerant flowing into the evaporator has a dryness after throttling, with part of the refrigerant being in gaseous form and the other part being in liquid form. Therefore, when the flow rate of the refrigerant is slow, the gaseous refrigerant and the liquid refrigerant separate. If this separation process occurs before the refrigerant enters the evaporator, most of the liquid refrigerant flows into the coil located in the lower area of ​​the evaporator, and most of the gaseous refrigerant flows into the coil located in the upper area of ​​the evaporator, resulting in uneven distribution of the refrigerant in the evaporator, which in turn leads to poor heat exchange efficiency of the evaporator. Here, dryness refers to the mass fraction of the gaseous refrigerant in the refrigerant.

[0036] In order to solve the above problems, some embodiments of the present disclosure provide an air conditioner 1000 .

[0037] FIG1 is a block diagram of an air conditioner according to some embodiments. As shown in FIG1 , the air conditioner 1000 includes an indoor unit 100 and an outdoor unit 200. The indoor unit 100 and the outdoor unit 200 are connected by pipelines to transmit refrigerant. The indoor unit 100 includes an indoor heat exchanger 32. The outdoor unit 200 includes a compressor 10, a four-way valve 20, an outdoor heat exchanger 31, and a throttling device 40. The compressor 10, the outdoor heat exchanger 31, the throttling device 40, and the indoor heat exchanger 32, connected in sequence, form a refrigerant circuit. The refrigerant circulates in the refrigerant circuit and exchanges heat with the ambient air through the outdoor heat exchanger 31 and the indoor heat exchanger 32, respectively, to achieve cooling mode or heating mode of the air conditioner 1000. Here, the indoor heat exchanger 32 and the outdoor heat exchanger 31 may be referred to as a heat exchanger assembly 30.

[0038] The indoor heat exchanger 32 is configured to exchange heat between the indoor air and the refrigerant transmitted through the indoor heat exchanger 32. For example, in the cooling mode of the air conditioner 1000, the indoor heat exchanger 32 operates as an evaporator, so that the refrigerant, after dissipating heat through the outdoor heat exchanger 31, absorbs heat from the indoor air through the indoor heat exchanger 32 and evaporates. In the heating mode of the air conditioner 1000, the indoor heat exchanger 32 operates as a condenser, so that the refrigerant, after absorbing heat through the outdoor heat exchanger 31, dissipates heat to the indoor air through the indoor heat exchanger 32 and condenses.

[0039] The compressor 10 is configured to compress the refrigerant so that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

[0040] The outdoor heat exchanger 31 is configured to exchange heat between outdoor air and the refrigerant transmitted through the outdoor heat exchanger 31. For example, in the cooling mode of the air conditioner 1000, the outdoor heat exchanger 31 operates as a condenser, so that the refrigerant compressed by the compressor 10 dissipates heat to the outdoor air through the outdoor heat exchanger 31 and condenses. In the heating mode of the air conditioner 1000, the outdoor heat exchanger 31 operates as an evaporator, so that the decompressed refrigerant absorbs heat from the outdoor air through the outdoor heat exchanger 31 and evaporates.

[0041] The throttling device 40 is connected between the outdoor heat exchanger 31 and the indoor heat exchanger 32. The opening of the throttling device 40 regulates the pressure of the refrigerant flowing through the outdoor heat exchanger 31 and the indoor heat exchanger 32, thereby adjusting the refrigerant flow rate between the outdoor heat exchanger 31 and the indoor heat exchanger 32. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger 31 and the indoor heat exchanger 32 will affect the heat exchange performance of the outdoor heat exchanger 31 and the indoor heat exchanger 32. The opening of the throttling device 40 is adjustable to control the flow rate and pressure of the refrigerant flowing through the throttling device 40. For example, the throttling device 40 causes the liquid refrigerant condensed in the condenser to expand into low-pressure liquid refrigerant.

[0042] The throttling device 40 can be a pressure reducing tube (such as a capillary tube) or an electronic expansion valve. It should be noted that some embodiments of the present disclosure are described using the example of the throttling device 40 being disposed in the outdoor unit 200. Of course, in some embodiments, the throttling device 40 can also be disposed in the indoor unit 100, or in the refrigerant pipeline between the outdoor unit 200 and the indoor unit 100, as long as the throttling device 40 can be located between the indoor heat exchanger 32 and the outdoor heat exchanger 31 along the flow direction of the refrigerant.

[0043] The four-way valve 20 is connected to the refrigerant circuit and is configured to switch the flow direction of the refrigerant in the refrigerant circuit so that the air conditioner 1000 performs a cooling mode or a heating mode.

[0044] For example, the four-way valve 20 includes a first port A, a second port B, a third port C, and a fourth port D. One end of the compressor 10 is connected to the first port A of the four-way valve, and the other end of the compressor 10 is connected to the second port B of the four-way valve. The third port C of the four-way valve is connected to one end of the outdoor heat exchanger 31. The other end of the outdoor heat exchanger 31 is connected to one end of the indoor heat exchanger 32 via the throttle device 40. The other end of the indoor heat exchanger 32 is connected to the fourth port D of the four-way valve.

[0045] The cooling mode and the heating mode of the air conditioner 1000 are described in detail below using FIG. 1 as an example.

[0046] When the air conditioner 1000 is operating in cooling mode, the second port B and the third port C of the four-way valve 20 are connected, and the fourth port D and the first port A are connected. In this case, the refrigerant can circulate sequentially among the compressor 10, the second port B and the third port C of the four-way valve 20, the outdoor heat exchanger 31, the throttling device 40, the indoor heat exchanger 32, the fourth port D and the first port A of the four-way valve 20, and the compressor 10. During this process, the outdoor heat exchanger 31 acts as a condenser and the indoor heat exchanger 32 acts as an evaporator. The refrigerant can release heat at the outdoor heat exchanger 31 to exchange heat with the outdoor air, and can also absorb heat at the indoor heat exchanger 32 to exchange heat with the indoor air, thereby cooling the indoor air and achieving the cooling effect of the air conditioner 1000.

[0047] When the air conditioner 1000 is operating in heating mode, the second port B and the fourth port D of the four-way valve 20 are connected, and the third port C and the first port A are connected. In this case, the refrigerant can circulate sequentially among the compressor 10, the second port B and the fourth port D of the four-way valve 20, the indoor heat exchanger 32, the throttling device 40, the outdoor heat exchanger 31, the third port C and the first port A of the four-way valve 20, and the compressor 10. During this process, the indoor heat exchanger 32 acts as a condenser, and the outdoor heat exchanger 31 acts as an evaporator. The refrigerant can absorb heat at the outdoor heat exchanger 31 to exchange heat with the outdoor air, and can also release heat at the indoor heat exchanger 32 to exchange heat with the indoor air, thereby heating the indoor air and achieving the heating effect of the air conditioner 1000.

[0048] In this way, the refrigerant can circulate between the indoor unit 100 and the outdoor unit 200, undergoing a reversible phase change. During this phase change, the refrigerant can release or absorb heat. Thus, the refrigerant in the outdoor unit 200 can exchange heat through the outdoor heat exchanger 31, thereby releasing heat to heat the outdoor air (or absorbing heat to cool the outdoor air). Furthermore, the refrigerant in the indoor unit 100 can exchange heat through the indoor heat exchanger 32, thereby absorbing heat to cool the indoor air (or releasing heat to heat the indoor air).

[0049] FIG2 is a top view of an air conditioner according to some embodiments. In some embodiments, as shown in FIG2 , the air conditioner 1000 further includes a housing 50 and a fan assembly 60. The heat exchanger assembly 30 and the fan assembly 60 can be installed within the housing 50, and the heat exchanger assembly 30 can be positioned near an air outlet or an air inlet of the housing 50. The fan assembly 60 is configured to drive air through the heat exchanger assembly 30. Thus, when the fan assembly 60 rotates, the airflow driven by the fan assembly 60 can pass through the heat exchanger assembly 30 to exchange heat with the refrigerant flowing within the heat exchanger assembly 30.

[0050] It should be noted that when the air conditioner 1000 is a split-type air conditioner, the shell 50 can be the shell of the indoor unit 100 or the outdoor unit 200, the fan assembly 60 can be the indoor fan corresponding to the indoor unit 100 or the outdoor fan corresponding to the outdoor unit 200, and the corresponding heat exchanger assembly 30 can be the indoor heat exchanger 32 or the outdoor heat exchanger 31.

[0051] Taking the housing 50 as the outer shell of the outdoor unit 200 as an example, the heat exchanger assembly 30 in Figure 2 can be the outdoor heat exchanger 31, and the fan assembly 60 in Figure 2 is the outdoor fan corresponding to the outdoor unit 200. The outdoor fan can be a centrifugal fan or a cross-flow fan, driving the outdoor air surrounding the outdoor unit 200 to continuously flow through the outdoor heat exchanger 31. The refrigerant circulating in the outdoor heat exchanger 31 can heat or cool the outdoor air flowing through the outdoor heat exchanger 31. In this case, other components of the outdoor unit 200, such as the compressor 10 and the four-way valve 20, can also be installed in the housing 50.

[0052] Taking the housing 50 as the outer shell of the indoor unit 100 as an example, the heat exchanger assembly 30 in FIG2 may be the indoor heat exchanger 32, and the fan assembly 60 in FIG2 may be the indoor fan corresponding to the indoor unit 100. The indoor fan may be an axial flow fan or a centrifugal fan to drive the indoor air around the indoor unit 100 to continuously flow through the indoor heat exchanger 32, so that the refrigerant circulating in the indoor heat exchanger 32 can heat or cool the indoor air flowing through the indoor heat exchanger 32.

[0053] The heat exchanger assembly 30 in some embodiments of the present disclosure is described in detail below.

[0054] FIG3 is a block diagram of a heat exchanger assembly according to some embodiments. FIG4 is a block diagram of the second flow diversion assembly shown in FIG3 . In some embodiments, taking the heat exchanger assembly 30 as an example, an outdoor heat exchanger 31, as shown in FIG3 , the heat exchanger assembly 30 includes a heat exchanger body 33, a second flow diversion assembly 34, and a gas manifold 35.

[0055] The heat exchanger body 33 is the main structure of the heat exchanger assembly 30 and is configured to perform heat exchange of the refrigerant. A plurality of refrigerant channels are provided in the heat exchanger body 33, and the refrigerant flows in the plurality of refrigerant channels to perform heat exchange. Along the flow direction of the refrigerant, the second diverter assembly 34 and the manifold 35 can be located on opposite sides of the heat exchanger body 33. In addition, the second diverter assembly 34 and the manifold 35 are connected to the heat exchanger body 33 and communicate with the heat exchanger body 33. For example, in the case where the heat exchanger assembly 30 is an outdoor heat exchanger 31, the second diverter assembly 34 is provided on the refrigerant circuit between the throttling device 40 and the heat exchanger body 33, and the manifold 35 is provided on the refrigerant circuit between the heat exchanger body 33 and the four-way valve 20.

[0056] The gas collecting pipe 35 extends in a first direction and is provided between the heat exchanger body 33 and the four-way valve 20 to communicate with the four-way valve 20. Here, the first direction is substantially parallel to the up-down direction in FIG.

[0057] As shown in Figure 4, the second diversion component 34 includes a main liquid pipe 341, a diversion part 342 and a plurality of branch pipes 343. One end of the main liquid pipe 341 is connected to an end of the diversion part 342 away from the branch pipe 343 (such as the lower end), and the other end of the main liquid pipe 341 is connected to the throttling device 40 or the indoor heat exchanger 32. An end of the diversion part 342 close to the branch pipe 343 (such as the upper end) is provided with a plurality of connection ports, and the plurality of connection ports correspond to the plurality of branch pipes 343. For example, one connection port is connected to one branch pipe 343. The ends of the plurality of branch pipes 343 away from the diversion part 342 respectively correspond to the plurality of refrigerant channels in the heat exchanger body 33, and are connected to the plurality of refrigerant channels in the heat exchanger body 33.

[0058] In this way, after the gas-liquid two-phase refrigerant or the liquid-phase refrigerant flows into the diverter portion 342 through the throttling device 40 and the main liquid pipe 341, the refrigerant can be evenly diverted in the diverter portion 342. The diverted refrigerant can flow into the multiple branch pipes 343 through the multiple connection ports of the diverter portion 342, and then flow into the multiple refrigerant channels of the heat exchanger body 33 through the multiple branch pipes 343, thereby improving the uniformity of the refrigerant in the multiple refrigerant channels of the heat exchanger body 33.

[0059] In some embodiments, the diverter portion 342 may be a diverter structure similar to a shower head.

[0060] Figure 5 is another structural diagram of the heat exchanger assembly in Figure 3. Figure 5 shows the three-dimensional structure of the heat exchanger assembly 30. In some embodiments, as shown in Figure 5, the heat exchanger assembly 30 also includes an air pipe assembly 36, and the air pipe assembly 36 includes a main air pipe 361 and a plurality of sub-air pipes 362. The main air pipe 361 can extend along the first direction and be arranged close to the air collecting pipe 35. The plurality of sub-air pipes 362 can be arranged at intervals along the first direction, and one end of the sub-air pipe 362 can be connected and communicated with the main air pipe 361, and the other end of the sub-air pipe 362 can be connected and communicated with the air collecting pipe 35, so that the main air pipe 361 and the air collecting pipe 35 can be connected through the plurality of sub-air pipes 362. In this way, the main air pipe 361 can be connected to the four-way valve 20 instead of the air collecting pipe 35, so that the four-way valve 20 is connected to the air collecting pipe 35.

[0061] For example, if the heat exchanger assembly 30 is an outdoor heat exchanger 31, the main gas pipe 361 is connected to and communicates with the third port C of the four-way valve 20. If the heat exchanger assembly 30 is an indoor heat exchanger 32, the main gas pipe 361 is connected to and communicates with the fourth port D of the four-way valve 20. Of course, some embodiments of the present disclosure are not limited to this. If the heat exchanger assembly 30 is not provided with the gas pipe assembly 36, the gas collection pipe 35 can be directly connected to and communicates with the four-way valve 20, as long as the gas collection pipe 35 is in communication with the four-way valve 20.

[0062] In some embodiments, the heat exchanger assembly 30 may be a finned heat exchanger or a microchannel heat exchanger for circulating refrigerant at the outdoor heat exchanger 31 or the indoor heat exchanger 32, which is not limited in this disclosure. It should be noted that the microchannel heat exchanger may be a heat exchanger composed of a plurality of flat tubes, and the flat tubes are provided with a plurality of microchannels for circulating refrigerant (such as the refrigerant channels in the above-mentioned heat exchanger body 33). The finned heat exchanger may be a heat exchanger formed by connecting a plurality of fins to a plurality of metal tubes (such as copper tubes), and the metal tubes are also provided with channels for circulating refrigerant (such as the refrigerant channels in the above-mentioned heat exchanger body 33).

[0063] Figure 6 is a partial enlarged view of circle E in Figure 3 . In some embodiments, taking the outdoor heat exchanger 31 as an example, as shown in Figure 6 , the heat exchanger body 33 includes a plurality of first flat tubes 331 and a plurality of second flat tubes 332 . The number of first flat tubes 331 is the same as the number of second flat tubes 332 . The plurality of first flat tubes 331 are respectively connected to the gas collecting pipe 35 , and the plurality of second flat tubes 332 are respectively connected to the second flow distribution assembly 34 . Furthermore, the plurality of first flat tubes 331 and the plurality of second flat tubes 332 are arranged along the first direction. In this case, one of the multiple first flat tubes 331 is arranged close to one end (such as the top end) of the gas collecting pipe 35 along the first direction, and another of the multiple first flat tubes 331 is arranged close to the other end (such as the bottom end) of the gas collecting pipe 35 along the first direction, so that two of the multiple first flat tubes 331 can be respectively arranged close to the two ends of the gas collecting pipe 35 along the first direction, and the two first flat tubes 331 are respectively located at the outermost sides of the multiple first flat tubes 331 in their arrangement direction.

[0064] The plurality of first flat tubes 331 can each extend in a second direction (such as the left-right direction in FIG. 3 ) such that the plurality of first flat tubes 331 are parallel to one another. The plurality of second flat tubes 332 can also each extend in the second direction such that the plurality of second flat tubes 332 are parallel to one another. Because the plurality of first flat tubes 331 and the plurality of second flat tubes 332 extend in substantially the same direction, the plurality of first flat tubes 331 and the plurality of second flat tubes 332 can be approximately parallel to one another. Here, the second direction is perpendicular to the first direction.

[0065] It should be noted that some embodiments of the present disclosure are described using the example of the second direction being perpendicular to the first direction. Of course, in some embodiments, the angle between the first direction and the second direction may also be an acute angle or an obtuse angle, as long as the first direction intersects the second direction. In addition, the second direction may be a linear direction, for example, the first flat tube 331 and the second flat tube 332 may extend in a linear direction. Of course, the present disclosure is not limited to this. The second direction may also be a curved direction, for example, the first flat tube 331 and the second flat tube 332 may extend in a curved direction. Alternatively, part of the second direction may be a linear direction, and another part may be a curved direction. For example, the first flat tube 331 and the second flat tube 332 may first extend in a linear direction (e.g., from right to left), then bend toward one side (e.g., backward), and then extend in another linear direction (e.g., from front to back). The present disclosure is not limited to this.

[0066] As shown in Figures 3 and 6 , between the topmost and bottommost first flat tubes 331 of the plurality of first flat tubes 331 (i.e., the two first flat tubes 331 closest to both ends of the gas collecting pipe 35), every two second flat tubes 332 and every two first flat tubes 331 are alternately arranged along the first direction, such that each second flat tube 332 is adjacent to a first flat tube 331. In this case, the plurality of first flat tubes 331 and the plurality of second flat tubes 332 can be arranged on the same side (e.g., the left side) of the gas collecting pipe 35, such that the ends of the first flat tubes 331 closest to the gas collecting pipe 35 (e.g., the right end) can be connected to and communicate with the gas collecting pipe 35.

[0067] In some embodiments, as shown in FIG6 , the heat exchanger assembly 30 further includes a first diverter assembly 37. The first diverter assembly 37 may be a laminated structure. The first diverter assembly 37 is disposed between the heat exchanger body 33 and the second diverter assembly 34. The plurality of branch pipes 343 may be connected to one end (e.g., the right end) of the plurality of second flat tubes 332 that is close to the second diverter assembly 34 through one or more first diverter assemblies 37. The other end (e.g., the left end) of the plurality of second flat tubes 332 that is away from the second diverter assembly 34 may be connected and communicated with one end (e.g., the left end) of the adjacent first flat tube 331 that is away from the gas collecting pipe 35.

[0068] Figure 7 illustrates the arrangement of first and second flat tubes in a heat exchanger body according to some embodiments. For example, as shown in Figure 7, the left ends of adjacent first flat tubes 331 and second flat tubes 332 can be connected and communicated. From top to bottom, the left end of the first first flat tube 331 is connected and communicated with the left end of the first second flat tube 332. The left end of the second first flat tube 331 is connected and communicated with the left end of the second second flat tube 332. Similarly, the left end of the last first flat tube 331 can be connected and communicated with the left end of the last second flat tube 332.

[0069] In this way, when the heat exchanger assembly 30 is the evaporator in the outdoor unit 200, the gas-liquid two-phase refrigerant can be mixed and diverted through the second diversion assembly 34 and the first diversion assembly 37, so that the gas-liquid two-phase refrigerant can flow evenly into the multiple second flat tubes 332, thereby improving the overall heat exchange efficiency of the heat exchanger assembly 30.

[0070] It should be noted that some embodiments of the present disclosure illustrate an example in which one end (e.g., the right end) of the second flat tube 332 is connected to the branch pipe 343 via the first diverter assembly 37. Of course, in some embodiments, only the second diverter assembly 34 and the first diverter assembly 37 may be provided between the heat exchanger assembly 30 and the throttling device 40, as long as the gas-liquid two-phase refrigerant can flow evenly into the multiple second flat tubes 332 of the heat exchanger body 33. This is not a limitation of the present disclosure. For example, the right end of the second flat tube 332 may be connected to and communicated with only the first diverter assembly 37 or the second diverter assembly 34.

[0071] Taking the connection of the right end of the second flat tube 332 to the first flow diverter assembly 37 as an example, along the refrigerant flow direction, the first flow diverter assembly 37 and the manifold 35 can be connected to opposite sides of the heat exchanger body 33. For example, if the heat exchanger assembly 30 is an outdoor heat exchanger 31, the first flow diverter assembly 37 is disposed in the refrigerant circuit between the throttling device 40 and the heat exchanger body 33, and the manifold 35 is disposed in the refrigerant circuit between the heat exchanger body 33 and the four-way valve 20.

[0072] If the number of second flat tubes 332 is small, the heat exchanger assembly 30 can include a first flow diversion assembly 37 having multiple flow diversion ports, each of which is connected to a plurality of second flat tubes 332. In this way, the gas-liquid two-phase refrigerant diverted by the first flow diversion assembly 37 can flow into the corresponding second flat tubes 332 through the multiple flow diversion ports, then flow into the manifold 35 through the corresponding first flat tubes 331, and finally flow to the four-way valve 20. If the number of second flat tubes 332 is large, the heat exchanger assembly 30 can include multiple first flow diversion assemblies 37. Each of the multiple first flow diversion assemblies 37 has multiple flow diversion ports, and one first flow diversion assembly 37 can correspond to two or more second flat tubes 332. For example, the multiple flow diversion ports of one first flow diversion assembly 37 can be connected to two or more second flat tubes 332, respectively, to ensure uniform flow of the refrigerant. Therefore, the present disclosure does not limit the number of first flow diversion assemblies 37.

[0073] It should be noted that one second flat tube 332 may be directly connected to one branch tube 343 . Alternatively, one branch tube 343 may be connected to multiple second flat tubes 332 via a first flow diverter assembly 37 , so as to divert the refrigerant flowing into the second flat tubes 332 via the first flow diverter assembly 37 .

[0074] Typically, when a microchannel heat exchanger is used as a heat exchanger and the microchannel heat exchanger serves as the condenser of an outdoor unit, the refrigerant at the condenser outlet has a large degree of subcooling, while the refrigerant at the condenser inlet has a large degree of superheat. When the liquid inlet (e.g., liquid end) and gas outlet (e.g., gas end) of the flat tubes in the microchannel heat exchanger are alternately arranged vertically, a large temperature difference exists between the liquid inlet and gas outlet ends of the flat tubes. Heat from the refrigerant at the liquid inlet of the flat tubes can be transferred to the refrigerant at the gas outlet, reducing the superheat of the refrigerant at the liquid inlet and, in turn, lowering the heat exchange efficiency of the condenser. Furthermore, when heat from the refrigerant at the liquid inlet of the flat tubes is transferred to the refrigerant at the gas outlet, the subcooling of the refrigerant at the gas outlet also decreases, reducing the cooling effect of the indoor unit acting as the evaporator, further affecting the heat exchange efficiency of the condenser.

[0075] For example, when a first flat tube 331 and a second flat tube 332 are arranged in sequence with an interval along the first direction, there is a large temperature difference between the end of the first flat tube 331 away from the second flat tube 332 (e.g., the right end) and the end of the second flat tube 332 away from the first flat tube 331 (e.g., the right end) along the flow direction of the refrigerant. This causes heat transfer between the adjacent first flat tubes 331 and second flat tubes 332, thereby reducing the heat exchange efficiency of the heat exchanger.

[0076] However, in some embodiments of the present disclosure, taking the example of a group of flat tubes consisting of a first flat tube 331 and a second flat tube 332 connected and communicating with each other as shown in FIG7 , there is a significant temperature difference between the refrigerant at the liquid end (e.g., the right end of the second flat tube 332) and the refrigerant at the gas end (e.g., the right end of the first flat tube 331) within the same group of flat tubes. In this case, because the two first flat tubes 331 in two adjacent groups of flat tubes are close to each other, and the two second flat tubes 332 in two adjacent groups of flat tubes are close to each other, the temperature difference between the two liquid ends and the two gas ends between the two adjacent groups of flat tubes is relatively small. Consequently, the temperature difference between the two adjacent second flat tubes 332 and the temperature difference between the two adjacent first flat tubes 331 are relatively small. No heat is transferred (or the amount of heat transferred is relatively small) between the second flat tubes 332 in one group of flat tubes and the first flat tubes 331 in the other adjacent group of flat tubes, effectively reducing heat loss caused by the temperature difference between the two adjacent groups of flat tubes, thereby improving the heat exchange efficiency of the heat exchanger body 33.

[0077] The preceding description primarily uses as an example a heat exchanger body 33 employing a single row of flat tubes (e.g., multiple first flat tubes 331 and multiple second flat tubes 332 are in the same plane), such as a heat exchanger assembly 30 being a single-row microchannel heat exchanger. Of course, in some embodiments, the heat exchanger body 33 may also employ multiple rows of flat tubes (e.g., each row of flat tubes is in multiple, substantially parallel planes), such as a heat exchanger assembly 30 being a multi-row microchannel heat exchanger, to improve the heat exchange efficiency of the heat exchanger body 33. For example, if the heat exchanger assembly 30 is a double-row microchannel heat exchanger, the heat exchanger body 33 in the heat exchanger assembly 30 may employ double rows of flat tubes.

[0078] Figure 8 is a partial enlarged view of circle F in Figure 5 . In some embodiments, as shown in Figure 8 , the heat exchanger body 33 further includes a plurality of third flat tubes 333, a plurality of fourth flat tubes 334, and a plurality of connecting tubes 335. The number of third flat tubes 333, fourth flat tubes 334, and connecting tubes 335 is the same, and their number is equal to the number of first flat tubes 331. The plurality of third flat tubes 333 are arranged corresponding to the plurality of first flat tubes 331. Thus, one of the plurality of third flat tubes 333 is arranged near the top end of the manifold 35 along the first direction, and another of the plurality of third flat tubes 333 is arranged near the bottom end of the manifold 35 along the first direction. As a result, the two third flat tubes 333 can be at the same height as the two first flat tubes 331 closest to the ends of the manifold 35 in the plurality of first flat tubes 331 in the first direction. Correspondingly, between the two third flat tubes 333 (i.e., the two third flat tubes 333 closest to the ends of the gas collecting pipe 35 among the plurality of third flat tubes 333), every two fourth flat tubes 334 and every two third flat tubes 333 are alternately and spaced apart along the first direction. In this way, each third flat tube 333 can be arranged adjacent to a fourth flat tube 334. The plurality of third flat tubes 333 can each extend along the second direction, and the plurality of fourth flat tubes 334 can also each extend along the second direction, so that the plurality of fourth flat tubes 334 can be arranged approximately parallel to the plurality of third flat tubes 333. Furthermore, the plurality of third flat tubes 333 and the plurality of fourth flat tubes 334 are arranged on the same side (e.g., the left side) of the gas collecting pipe 35 near the first flat tube 331, so that the ends of the plurality of fourth flat tubes 334 near the gas collecting pipe 35 (e.g., the right end) can connect to and communicate with the gas collecting pipe 35.

[0079] Figure 9 is a partial enlarged view of circle G in Figure 5. Figure 9 shows a flow direction of the refrigerant in the third flat tube 333 and the fourth flat tube 334, but the present disclosure is not limited to this. As shown in Figure 9, the end of the fourth flat tube 334 away from the manifold 35 (such as the left end) is connected and communicated with the end of an adjacent third flat tube 333 away from the manifold 35 (such as the left end). As shown in Figure 8, the end of the first flat tube 331 close to the manifold 35 (such as the right end) is connected and communicated with the right end of the corresponding third flat tube 333 (such as the third flat tube 333 at the same height as the first flat tube 331) via a connecting tube 335. In this way, the refrigerant can flow in a forward or reverse direction in sequence between the second flat tube 332, the first flat tube 331, the third flat tube 333, and the fourth flat tube 334. Compared with a microchannel heat exchanger with a single-row structure having only the first flat tube 331 and the second flat tube 332, a microchannel heat exchanger with a double-row structure having the third flat tube 333 and the fourth flat tube 334 can increase the heat exchange time and heat exchange contact area between the refrigerant and the air through the heat exchanger body 33, thereby effectively improving the heat exchange efficiency of the heat exchanger body 33.

[0080] It should be noted that since the third flat tubes 333 and the fourth flat tubes 334 are arranged with reference to the first flat tubes 331 and the second flat tubes 332, in the first direction, taking a third flat tube 333 and a fourth flat tube 334 connected and communicating as a group of flat tubes as an example, in two adjacent groups of flat tubes, the two third flat tubes 333 or the two fourth flat tubes 334 are close to each other, which can reduce heat loss caused by temperature differences between the two adjacent groups of flat tubes and improve the heat exchange efficiency of the heat exchanger body 33.

[0081] In some embodiments, in the first direction, the plurality of first flat tubes 331 can be at the same height as the plurality of third flat tubes 333, and the plurality of second flat tubes 332 can be at the same height as the plurality of fourth flat tubes 334. For example, in the third direction (such as the front-to-back direction in FIG. 8 ), the first flat tubes 331 are approximately aligned with the corresponding third flat tubes 333, and the second flat tubes 332 are approximately aligned with the corresponding fourth flat tubes 334. In this way, driven by the fan assembly 60, air can flow through the gaps between adjacent flat tubes in a direction away from the fan assembly 60 (e.g., from front to back), allowing air to flow smoothly along the third direction. The third flat tubes 333 can be located on the side of the first flat tubes 331 that is close to the fan assembly 60 (e.g., the front side) or on the side of the first flat tubes 331 that is away from the fan assembly 60 (e.g., the rear side), although this disclosure is not limited thereto.

[0082] In some embodiments, in a set of flat tubes consisting of a first flat tube 331 and a second flat tube 332 connected thereto, the left end of the first flat tube 331 and the left end of the second flat tube 332 can be connected via an elbow, or a flat tube structure can be bent to form an integral structure to serve as the first flat tube 331 and the second flat tube 332. Correspondingly, in a set of flat tubes consisting of a third flat tube 333 and a fourth flat tube 334 connected thereto, the left end of the third flat tube 333 and the left end of the fourth flat tube 334 can be connected via an elbow, or a flat tube structure can be bent to form an integral structure to serve as the third flat tube 333 and the fourth flat tube 334. This integral structure helps reduce the number of welds in the flat tubes, thereby reducing the risk of refrigerant leakage.

[0083] In some embodiments, as shown in Figures 8 and 9, the heat exchanger body 33 further includes a plurality of fins 336. Each of the fins 336 can extend along the first direction, and each fin 336 is provided with a plurality of sockets 337 spaced apart along the first direction. The sockets 337 are open on the side closest to or away from the fan assembly 60 (e.g., the front or rear side), and the plurality of sockets 337 on the fin 336 can open toward the same side. Any of the first flat tube 331, the second flat tube 332, the third flat tube 333, or the fourth flat tube 334 can be inserted into the socket 337. When installing the first and second flat tubes 331, 332, and fins 336, they can be inserted into their corresponding sockets 337 in a direction approaching the fan assembly 60 (e.g., from back to front). The first and second flat tubes 331, 332 can then contact and connect with the fins 336, thereby facilitating the installation of the first and second flat tubes 331, 332, and fins 336. The installation process for the third and fourth flat tubes 333, 334, and fins 336 is similar to that for the first and second flat tubes 331, 332, and will not be further described here.

[0084] In FIG8 , the plurality of fins 336 are arranged along the third direction to form a double-row microchannel heat exchanger. Of course, in some embodiments, the plurality of fins 336 may also be arranged at intervals along the second direction to form a single-row microchannel heat exchanger, thereby increasing the heat exchange area of ​​the heat exchanger body 33 and improving the heat exchange efficiency of the heat exchanger body 33.

[0085] Furthermore, the opening direction of the socket 337 can be directed away from the fan assembly 60 (i.e., the side of the socket 337 facing away from the fan assembly 60 is open). Thus, the fins 336 can be located on the windward side (e.g., the front side) of the first and second flat tubes 331, 332, allowing the first and second flat tubes 331, 332 to pre-exchange heat with the air blown in from the fan assembly 60 via the fins 336. Thus, if the heat exchanger assembly 30 is an evaporator, some water vapor in the air can pre-condense at the fins 336. The condensed water can then flow downward along the smooth surface of the fins 336 in the first direction and be discharged, thereby reducing the accumulation of condensed water on the first and second flat tubes 331, 332, thereby reducing or preventing frost on the first and second flat tubes 331, 332, and facilitating improved heat exchange efficiency of the microchannel heat exchanger.

[0086] Correspondingly, if the heat exchanger assembly 30 is a double-row microchannel heat exchanger, the third and fourth flat tubes 333, 334 can also be inserted into the corresponding sockets 337 in a direction closer to the fan assembly 60, and the third and fourth flat tubes 333, 334 can contact and connect with the fins 336, thereby forming a single-row structure. The single-row structure formed by the third and fourth flat tubes 333, 334 can be arranged on a side (e.g., the front or rear side) of the single-row structure formed by the first and second flat tubes 331, 332, closer to or farther from the fan assembly 60. The connecting tube 335 connects the first and third flat tubes 331, 333 adjacent in the third direction, thereby forming a double-row microchannel heat exchanger. It should be noted that when multiple fins 336 are installed with the third and fourth flat tubes 333, 334, the multiple fins 336 can be spaced apart along the second direction.

[0087] In some embodiments, the right end of the second flat tube 332 can be offset from the right end of the first flat tube 331 in the second direction. For example, as shown in Figures 6 and 7 , the right end of the second flat tube 332 is closer to the gas manifold 35 than the right end of the first flat tube 331 in the second direction. This allows for a gap between the first diverter assembly 37 and the right end of the first flat tube 331 after the right end of the second flat tube 332 is connected to the first diverter assembly 37, facilitating installation of the first flat tube 331.

[0088] Furthermore, if the heat exchanger body 33 further includes third and fourth flat tubes 333 and 334, the right end of the third flat tube 333 can be aligned in the third direction with the right end of the first flat tube 331, and the right end of the fourth flat tube 334 can be aligned in the third direction with the right end of the second flat tube 332. In this way, after the right end of the second flat tube 332 is connected to the first flow diverter assembly 37 and the right end of the fourth flat tube 334 is connected to the manifold 35, a gap can be provided between the right end of the third flat tube 333 and the manifold 35, and a gap can be provided between the right end of the first flat tube 331 and the first flow diverter assembly 37, facilitating the installation of the connecting tube 335.

[0089] The structure of the first diversion component 37 in some embodiments of the present disclosure is described in detail below.

[0090] Figure 10 is a structural diagram of the first flow diversion component in Figure 8 when connected to the branch pipe and a plurality of second flat pipes. Figure 11 is an exploded view of the first flow diversion component in Figure 10.

[0091] In some embodiments, as shown in Figures 10 and 11 , the first flow diverter assembly 37 is a laminated structure. For example, as shown in Figures 10 and 11 , the first flow diverter assembly 37 includes a first connecting plate 371 , a second connecting plate 372 , and a third connecting plate 373 , and the first connecting plate 371 , the second connecting plate 372 , and the third connecting plate 373 are sequentially arranged and stacked in a direction close to the heat exchanger body 33 (from right to left).

[0092] The first connecting plate 371 is provided with a first through hole 3711. The first through hole 3711 can be located near the middle of the first connecting plate 371. The second connecting plate 372 includes a second connecting plate body 3720, two first guide channels 3721 and four second guide channels 3722.

[0093] Taking the example of the first flow guide channel 3721 extending primarily along the first direction, the second connecting plate 372 further includes a first region 3720A and a second region 3720B, and the first region 3720A and the second region 3720B are arranged along the first direction. For example, the first region 3720A is the upper region of the second connecting plate body 3720, and the second region 3720B is the lower region of the second connecting plate body 3720. Alternatively, the first region 3720A is the lower region of the second connecting plate body 3720, and the second region 3720B is the upper region of the second connecting plate body 3720.

[0094] The following description will be made by taking the first area 3720A as the upper area of ​​the second connecting plate body 3720 and the second area 3720B as the lower area of ​​the second connecting plate body 3720 as an example.

[0095] One first flow guiding channel 3721 is located in the first zone 3720A, and the other first flow guiding channel 3721 is located in the second zone 3720B. The ends of the two first flow guiding channels 3721 that are closer to each other can communicate with the first through hole 3711. Furthermore, because the end of the first through hole 3711 away from the second connecting plate 372 (e.g., the right end) can be connected to and communicate with the branch pipe 343, the refrigerant flowing into the branch pipe 343 can be split into the two first flow guiding channels 3721 through the first through hole 3711. Of course, the first through hole 3711 can also be directly connected to and communicate with the throttling device 40.

[0096] In this case, as shown in Figure 11, one end (e.g., the upper end) of the first guide channel 3721 located in the first zone 3720A away from the first through hole 3711 is connected to the two second guide channels 3722. One of the two second guide channels 3722 can extend from the upper end of the first guide channel 3721 in a direction away from the first through hole 3711 (e.g., upward), and the other of the two second guide channels 3722 can extend from the upper end of the first guide channel 3721 in a direction close to the first through hole 3711 (e.g., downward), so that the refrigerant in the first guide channel 3721 located in the first zone 3720A can be diverted into the two second guide channels 3722 via the upper end of the first guide channel 3721.

[0097] Correspondingly, one end (e.g., the lower end) of the first guide channel 3721 located in the second zone 3720B away from the first through hole 3711 is connected to the other two second guide channels 3722. One of the two second guide channels 3722 can extend from the lower end of the first guide channel 3721 in a direction away from the first through hole 3711 (e.g., downward), and the other of the two second guide channels 3722 can extend from the lower end of the first guide channel 3721 in a direction closer to the first through hole 3711 (e.g., upward), so that the refrigerant in the first guide channel 3721 located in the second zone 3720B can be diverted into the two second guide channels 3722 via the lower end of the first guide channel 3721.

[0098] In this way, by providing the two first guide channels 3721 and the four second guide channels 3722 , the refrigerant can be diverted along the first direction to most areas on the second connecting plate body 3720 .

[0099] As shown in Figure 11, the third connecting plate 373 is provided with a plurality of first connection holes 3731. The plurality of first connection holes 3731 are spaced apart along the first direction and correspond to four second flow guiding channels 3722. For example, one second flow guiding channel 3722 corresponds to two first connection holes 3731, and the end of the second flow guiding channel 3722, away from the first flow guiding channel 3721 it connects to, is connected to the ends (e.g., the right ends) of the two first connection holes 3731 closer to the second connecting plate 372. As shown in Figure 10, taking the first connection hole 3731 as a strip-shaped hole corresponding to the second flat tube 332 as an example, the right end of the second flat tube 332 can be inserted into the first connection hole 3731 to connect the first connection hole 3731 with the second flat tube 332. The plurality of first connection holes 3731 correspond to the plurality of second flat tubes 332, and the plurality of first connection holes 3731 are connected to and communicate with the plurality of second flat tubes 332, respectively. Thus, because the plurality of second flat tubes 332 are arranged in groups of two, and the two second flat tubes 332 in a group of second flat tubes 332 are close to each other, the plurality of first connection holes 3731 are also arranged in groups of two in the first direction, and the two first connection holes 3731 in a group of first connection holes 3731 are close to each other, and the two adjacent first connection holes 3731 communicate with the same second guide channel 3722. Thus, as shown in FIG6 , two adjacent second flat tubes 332 in a group of second flat tubes 332 can communicate with two adjacent first connection holes 3731 in a group of first connection holes 3731, thereby allowing the two second flat tubes 332 to communicate with the same second guide channel 3722.

[0100] When the heat exchanger assembly 30 is used as an evaporator, the refrigerant flowing in through the first through-hole 3711 can be split and flow into the two first flow guide channels 3721. The refrigerant flowing in one first flow guide channel 3721 can be split and flow into the corresponding two second flow guide channels 3722. The refrigerant flowing in one of the two second flow guide channels 3722 can then be split and flow into the corresponding two first connecting holes 3731, and then into the corresponding two second flat tubes 332 through the two first connecting holes 3731. Thus, the multiple first connecting holes 3731 allow the split refrigerant to flow into the multiple second flat tubes 332. In this way, through the multi-stage diversion of the first diversion component 37, the distribution uniformity of the gas-liquid two-phase refrigerant flowing into the multiple second flat tubes 332 can be improved, so that the refrigerant flowing through the refrigerant channels in the upper and lower areas of the heat exchanger body 33 has a smaller mass difference, which is beneficial to improving the heat exchange efficiency of the heat exchanger component 30 during use as an evaporator, thereby improving the energy efficiency ratio of the air conditioner 1000.

[0101] It should be noted that the number of the multiple first connection holes 3731 can also be the same as the number of the multiple second guide channels 3722. For example, one end of a second guide channel 3722, away from the first guide channel 3721 to which it is connected, is connected to one first connection hole 3731. Of course, in some embodiments, one second guide channel 3722 can also be connected to three, four, or more first connection holes 3731. In addition, if the arrangement of the first flat tubes 331 and the second flat tubes 332 in the first direction is not necessary, the heat exchanger assembly 30 can also use a fin-type heat exchanger consisting of a round copper tube and a plurality of fins connected to the round copper tube. In this case, the first connection hole 3731 can be a round hole structure, and the round copper tube can be inserted into the first connection hole 3731.

[0102] In some embodiments, the surface of the second connecting plate 372 away from the first connecting plate 371 (e.g., the left side) and the surface of the third connecting plate 373 closer to the first connecting plate 371 (e.g., the right side) are in contact. Furthermore, the first guide channel 3721 and the second guide channel 3722 extend through the second connecting plate body 3720. In this case, the first diversion assembly 37 further includes a blocking structure. This blocking structure is provided in the overlapping area of ​​the first connecting hole 3731 and the first guide channel 3721 in the second direction to prevent direct communication between the first guide channel 3721 and a portion of the first connecting hole 3731 in the second direction.

[0103] FIG. 12 is a side view of the second connecting plate of FIG. 11 .

[0104] In some embodiments, as shown in FIG12 , the second connecting plate 372 further includes at least one of a first diverter portion 3723 or a second diverter portion 3724. The first diverter portion 3723 is disposed between the two first flow guiding channels 3721 and is located on the side of the first through hole 3711 near the second connecting plate 372. For example, the first diverter portion 3723 is disposed between the ends of the two first flow guiding channels 3721 near the first through hole 3711 (i.e., the liquid inlet ends) to separate the two first flow guiding channels 3721. The first diverter portion 3723 is configured to divert the refrigerant from the first through hole 3711 so that the diverted refrigerant flows into the two first flow guiding channels 3721 respectively. The number of second diverter portions 3724 corresponds to the number of first flow guiding channels 3721. For example, the second connecting plate 372 includes two second diverter portions 3724. In this case, the second diverter portion 3724 is disposed between the two second flow guiding channels 3722 that are connected to the same first flow guiding channel 3721. That is, the second diverter 3724 is disposed at an end (e.g., a liquid outlet end) of the corresponding first diverter channel 3721 away from the first through hole 3711. The second diverter 3724 is configured to divert the refrigerant from the first diverter channel 3721 so that the diverted refrigerant flows into the two second diverter channels 3722 connected to the first diverter channel 3721.

[0105] In some embodiments, the first flow diverter 3723 has a sheet-like structure, and the first flow diverter 3723 overlaps with the central axis H1 of the first through hole 3711 in the second direction (as shown in FIG11 ). Thus, when the surface of the first connecting plate 371 away from the branch pipe 343 (e.g., the right side) and the surface of the second connecting plate 372 close to the branch pipe 343 (e.g., the left side) are in contact with each other, the sheet-like structure of the first flow diverter 3723 not only separates the two first flow guide channels 3721 but also overlaps with the central axis H1 of the first through hole 3711 in the second direction, thereby improving the uniformity of refrigerant diversion.

[0106] Moreover, the first diversion portion 3723 of the sheet structure can be roughly parallel to the first direction, so that the refrigerant after diversion by the first diversion portion 3723 can flow into the two first guide channels 3721 along the third direction respectively, thereby avoiding the influence of gravity on the uniform diversion of the gas-liquid two-phase refrigerant at the liquid inlet and outlet ends of the first guide channel 3721.

[0107] In some embodiments, the first diverter portion 3723 and the second connecting plate body 3720 may be an integral structure, or the first diverter portion 3723 may be connected to the second connecting plate body 3720 by welding or bonding.

[0108] In some embodiments, as shown in FIG12 , the two first flow guide channels 3721 are centrally symmetrical relative to the center of the first diverter portion 3723. For example, the first flow guide channel 3721 includes a first flow guide portion 3721A and a second flow guide portion 3721B that are interconnected, with the first flow guide portion 3721A being closer to the first through hole 3711 than the second flow guide portion 3721B. The first flow guide portion 3721A includes a first sub-portion 37211 and a second sub-portion 37212 that are interconnected. The first sub-portion 37211 is a portion of the first flow guide portion 3721A that is adjacent to the first through hole 3711 and is in communication with the first through hole 3711. The first sub-portion 37211 can be a linear structure extending along the third direction to improve the uniformity of the refrigerant flowing from the first through hole 3711 to the two first flow guide portions 3721A. The second sub-portion 37212 is a portion of the first guide portion 3721A close to the second guide channel 3722 and is in communication with the second guide channel 3722. The second sub-portion 37212 may be a linear structure and extend along the first direction.

[0109] The second guide portion 3721B has a straight structure and extends along the first direction, and is configured to smoothly transport the refrigerant guided through the first guide portion 3721A to reduce the flow fluctuation of the refrigerant. In this case, the first guide channel 3721 also includes a plurality of bends 3721C. The bends 3721C have a bend structure that is approximately at a right angle to a circular arc and are configured to adjust the flow direction of the refrigerant. As shown in Figure 12, one bend 3721C is arranged between the first sub-section 37211 and the second sub-section 37212 to connect the first sub-section 37211 and the second sub-section 37212. Another bend 3721C is located between the second sub-section 37212 and the second guide portion 3721B to connect the first guide portion 3721A and the second guide portion 3721B.

[0110] In some embodiments, as shown in FIG12 , the second connecting plate 372 further includes two third flow guide channels 3725, and the two third flow guide channels 3725 correspond to the two first flow guide channels 3721, respectively. The third flow guide channels 3725 are disposed between the first flow guide portion 3721A and the second flow guide portion 3721B, and are located near the bend 3721C connected to the second flow guide portion 3721B, so that the bend 3721C can communicate with the second flow guide portion 3721B and the third flow guide channels 3725. This allows the refrigerant entering the second flow guide portion 3721B to be evenly distributed within the second flow guide portion 3721B. In this way, the second flow guide portion 3721B can be located between the bend 3721C and the third flow guide channels 3725 in the third direction. The second guide portion 3721B can be arranged approximately vertically with the corresponding third guide channel 3725, and the third guide channel 3725 can be at the same height as the bending portion 3721C connected thereto, so that the second guide portion 3721B, the third guide channel 3725 and the bending portion 3721C can form a structure that is approximately inverted T-shaped or T-shaped.

[0111] Figure 13 is a vector diagram of the refrigerant flow rate within the third flow channel in Figure 12 . As shown in Figure 13 , within the first flow channel 3721 located in the first zone 3720A, the third flow channel 3725 can cause the flowing refrigerant to form a vortex within the third flow channel 3725. Since the refrigerant passing through the first flow guide portion 3721A flows a short distance in the third direction after passing through the bend 3721C and flows into the second flow guide portion 3721B, before flowing into the second flow guide portion 3721B, the refrigerant is subject to a deflecting force in the third direction, which can easily lead to uneven distribution of the refrigerant after entering the second flow guide portion 3721B. The vortex formed by the third flow channel 3725 can offset some of the deflecting force on the refrigerant in the third direction, thereby improving the uniformity of the refrigerant flowing to the second flow guide portion 3721B in the third direction. Furthermore, the second air guide portion 3721B having a longer straight structure can further improve the distribution uniformity of the refrigerant flowing through the second air guide portion 3721B.

[0112] Therefore, one end (such as the liquid outlet end) of the second guide portion 3721B away from the first guide portion 3721A can be connected to the corresponding two second guide channels 3722 in the third direction. For example, as shown in Figure 12, one end (such as the front end) of the liquid outlet end of the second guide portion 3721B in the third direction can be connected to a second guide channel 3722, and the other end (such as the rear end) of the liquid outlet end in the third direction can be connected to another second guide channel 3722. In addition, the second diverter 3724 can be a sheet-like structure. The second diverter 3724 of the sheet-like structure can be perpendicular to the third direction and overlap with the central axis H2 of the corresponding second guide portion 3721B. In this way, the refrigerant flowing in the second guide portion 3721B can be more evenly diverted along the third direction when passing through the second diverter 3724, so as to flow into the corresponding two second guide channels 3722 respectively.

[0113] Figure 14 is a flow velocity vector diagram of the refrigerant in the first guide channel and the second guide channel in Figure 12. As shown in Figure 14, through the above structure, the refrigerant flowing through the first diverter 3723 and the second diverter 3724 can be evenly diverted to reduce the influence of gravity on the diversion function of the two diverter structures. It should be noted that the first diverter 3723 and the second diverter 3724 can also be triangular prism structures. In this case, one edge of the first diverter 3723 protrudes in the direction close to the first through hole 3711 (such as to the right) and is parallel to the first direction. One edge of the second diverter 3724 protrudes in the direction close to the first guide channel 3721 (such as downward or upward) and is parallel to the second direction.

[0114] FIG15 is another exploded view of the first flow diverter assembly in FIG10 . FIG16 is a side view of the fourth connecting plate in FIG15 . Compared to FIG11 , the first flow diverter assembly 37 in FIG15 includes more connecting plates. In some embodiments, as shown in FIG15 , the first flow diverter assembly 37 further includes a fourth connecting plate 374 .

[0115] The fourth connecting plate 374 is arranged between the second connecting plate 372 and the third connecting plate 373. As shown in Figure 16, the fourth connecting plate 374 includes a fourth connecting plate body 3740 and a plurality of second connecting holes 3741. The plurality of second connecting holes 3741 are arranged on the fourth connecting plate body 3740 and are arranged corresponding to the plurality of first connecting holes 3731. For example, the number and arrangement of the plurality of second connecting holes 3741 are the same as the number and arrangement of the plurality of first connecting holes 3731. The first connecting hole 3731 can be connected to the second guide channel 3722 corresponding to the first connecting hole 3731 through the corresponding second connecting hole 3741. It should be noted that the number of the plurality of second connecting holes 3741 and the number of the plurality of first connecting holes 3731 can be integer multiples of four or eight, respectively.

[0116] By providing the second connecting holes 3741, a larger accommodating chamber 38 can be formed between the first connecting hole 3731 and the second connecting hole 3741 (as shown in FIG17 ). When the right end of the second flat tube 332 is inserted into the first connecting hole 3731, the second flat tube 332 and the first connecting hole 3731 are sealed and connected, facilitating the installation of the second flat tube 332. Furthermore, after the second flat tube 332 is inserted into the first connecting hole 3731, a portion of the second flat tube 332 can be inserted into the corresponding second connecting hole 3741, allowing the refrigerant to flow evenly into the multiple second flat tubes 332 through the multiple second connecting holes 3741, facilitating uniform distribution of the refrigerant. Furthermore, the second flat tube 332 can reduce the volume of the aforementioned accommodating chamber 38, preventing the gas-liquid separation of the refrigerant in the accommodating chamber 38, which could result in uneven refrigerant distribution.

[0117] Since the plurality of second connection holes 3741 are arranged corresponding to the plurality of first connection holes 3731, and two first connection holes 3731 correspond to one second guide channel 3722, one second guide channel 3722 can be connected to two second connection holes 3741. In this case, the fourth connecting plate 374 also includes a plurality of first diverter channels 3742, and the plurality of first diverter channels 3742 correspond to the plurality of second connection holes 3741. For example, one first diverter channel 3742 is connected to one second connection hole 3741. The two first diverter channels 3742 are respectively arranged along the first direction between the two second connection holes 3741 connected to the same second guide channel 3722. One end of the two first diversion channels 3742 is respectively connected to the corresponding second connection holes 3741, and the other ends of the two first diversion channels 3742 away from the corresponding second connection holes 3741 can be close to each other and connected to the corresponding second guide channels 3722, so that the second guide channels 3722 can be connected to the corresponding two second connection holes 3741, so that the refrigerant in the second guide channels 3722 can be further diverted to the two first diversion channels 3742.

[0118] It should be noted that when only two first diversion channels 3742 are provided between the two second connection holes 3741 connected to the same second guide channel 3722, on the fourth connecting plate body 3740, the ends of the two first diversion channels 3742 away from the corresponding second connection holes 3741 can be connected to the same second guide channel.

[0119] In some embodiments, the second connection hole 3741 may have the same structural shape as the first connection hole 3731. For example, the second connection hole 3741 and the first connection hole 3731 may be bar-shaped holes to facilitate installation of the second flat tube 332, or the second connection hole 3741 and the first connection hole 3731 may be round holes to facilitate installation of a round copper tube.

[0120] In some embodiments, as shown in FIG16 , the fourth connecting plate 374 further includes a plurality of second diverter channels 3743, and the plurality of second diverter channels 3743 can correspond to the plurality of second guide channels 3722. The second diverter channel 3743 is disposed between two first diverter channels 3742 that are in communication with the same second guide channel 3722, and is in communication with the two first diverter channels 3742. For example, in two first diverter channels 3742 that are in communication with the same second guide channel 3722, one end of the second diverter channel 3743 is in communication with the other ends of the two first diverter channels 3742 that are close to each other, and the other end of the second diverter channel 3743 can extend along the third direction and be in communication with the corresponding second guide channel 3722, so that the refrigerant can be diverted through the second guide channel 3722 and the second diverter channel 3743 in sequence and then flow into the two first diverter channels 3742.

[0121] In some embodiments, as shown in FIG16 , the fourth connecting plate 374 further includes a plurality of third diverter portions 3744 . The third diverter portions 3744 may be a sheet-like structure or a triangular prism structure, and the plurality of third diverter portions 3744 are arranged corresponding to the plurality of second diverter channels 3743 . For example, a third diverter portion 3744 is arranged at one end of a second diverter channel 3743 near two corresponding first diverter channels 3742 and located between the two first diverter channels 3742 corresponding to the second diverter channel 3743 . The third diverter portion 3744 is configured to partially separate the two corresponding first diverter channels 3742 to divert the refrigerant flowing from the second diverter channel 3743 to the two corresponding first diverter channels 3742 . In this way, by providing the third diverter portion 3744, the uniformity of the refrigerant diverted from the same second diverter channel 3743 to the two first diverter channels 3742 can be improved.

[0122] Taking the third diverter portion 3744 as an example, which is a sheet-like structure, the third diverter portion 3744 can be perpendicular to the first direction, so that the refrigerant flowing along the third direction in the second diverter channel 3743 can be evenly diverted upward and downward into the two first diverter channels 3742 after passing through the third diverter portion 3744, thereby reducing the influence of gravity on the diversion effect. It should be noted that the installation position and angle of the third diverter portion 3744 can also be adjusted accordingly with reference to the arrangement of the first diverter portion 3723 and the second diverter portion 3724.

[0123] In some embodiments, as shown in FIG15 , the first flow diversion assembly 37 further includes a fifth connecting plate 375 . The fifth connecting plate 375 can be disposed between the second connecting plate 372 and the fourth connecting plate 374 and is configured to separate the channel structure (e.g., the first flow diversion channel 3721) on the second connecting plate 372 from the hole structure (e.g., the second connecting hole 3741) or the channel structure (e.g., the first diversion channel 3742 and the second diversion channel 3743) on the fourth connecting plate 374 to prevent the second connecting hole 3741, the first diversion channel 3742, and the second diversion channel 3743 from connecting to the first flow diversion channel 3721 on the side (e.g., the right side) near the second connecting plate 372 and affecting the refrigerant diversion effect. For example, as shown in FIG15 , the fifth connecting plate 375 is provided with a plurality of second through holes 3751 , and the plurality of second through holes 3751 can be arranged corresponding to the plurality of second flow diversion channels 3722 . For example, one second through hole 3751 is connected to one second diversion channel 3722 . In this way, one end of the second diversion channel 3743 away from the corresponding first diversion channel 3742 can be connected to the corresponding second guide channel 3722 through a second through hole 3751 .

[0124] By providing the fifth connecting plate 375, the first guide channel 3721 and the second connecting hole 3741, the first guide channel 3721 and the first diverter channel 3742, and the first guide channel 3721 and the second diverter channel 3743 can be separated. Furthermore, the fifth connecting plate 375 can also be used to separate the second guide channel 3722 and the second connecting hole 3741, and the second guide channel 3722 and the first diverter channel 3742. Furthermore, if the second diverter channel 3743 is connected to only one end of a corresponding second guide channel 3722 (or a portion of the second guide channel 3722) via the second through hole 3751, the second diverter channel 3743 can also be separated from other locations of the second guide channel 3722 and other second guide channels 3722 by the fifth connecting plate 375.

[0125] It should be noted that when achieving three-stage refrigerant diversion in the first diversion assembly 37, the hole structures and channel structures on the first connecting plate 371, the second connecting plate 372, the third connecting plate 373, the fourth connecting plate 374, and the fifth connecting plate 375 can be through-hole structures arranged along the second direction. In this way, the first connecting plate 371, the second connecting plate 372, the third connecting plate 373, the fourth connecting plate 374, and the fifth connecting plate 375 can be quickly manufactured directly through a stamping process, resulting in a simple structure and easy production.

[0126] Of course, in some embodiments, the first flow diversion assembly 37 may also not include the fifth connecting plate 375. In this case, the surface of the fourth connecting plate 374 away from the third connecting plate 373 (e.g., the right side) aligns with the left side of the second connecting plate 372. The second connecting hole 3741 and the first flow diversion channel 3742 may be blind holes, with the side of the blind hole structure near the second connecting plate 372 (e.g., the right side) being closed. Furthermore, the end of the second flow diversion channel 3743 away from the first flow diversion channel 3742 is a through hole structure to connect to the corresponding second flow guide channel 3722.

[0127] Figure 17 is a schematic diagram of a flow channel structure of the first flow diversion assembly in Figure 10. After flowing through the flow channel structure of the first flow diversion assembly 37 shown in Figure 17 and undergoing three-stage diversion, the refrigerant can evenly flow into the multiple second flat tubes 332 in the heat exchanger body 33.

[0128] In the case where the first diverter assembly 37 is connected to the eight second flat tubes 332 through eight first connecting holes, the diverter effect of the first diverter assembly 37 is simulated and calculated with three refrigerant flow rates, namely the first flow rate (such as 1.651m / s), the second flow rate (such as 0.826m / s) and the third flow rate (such as 0.413m / s). The simulation experiment shows that the unevenness of the flow of the refrigerant after diversion by the first diverter assembly 37 is 2%, 2.8% and 3.5% respectively, and the flow curves at the outlets of the eight second flat tubes 332 are roughly symmetrical, and the uniformity of the refrigerant flow meets the use requirements. It should be noted that different refrigerant flow rates cause different loads on the first diverter assembly 37. The greater the refrigerant flow rate, the greater the load caused by the refrigerant flowing in the first diverter assembly 37.

[0129] The above description mainly uses the second connecting plate 372 in the first flow diversion component 37 as an example to illustrate that it includes the first flow diversion channel 3721 and the second flow diversion channel 3722. Of course, in some embodiments, the first flow diversion component 37 may also have other structures.

[0130] FIG18 is another exploded view of the first diverter assembly in FIG10 . Compared with FIG11 and FIG15 , the first diverter assembly 37 in FIG18 includes a different structure of the connecting plate. In some embodiments, as shown in FIG18 , the first diverter assembly 37 includes a first connecting plate 371 , a second connecting plate 372 , a third connecting plate 373 , and a fourth connecting plate 374 . The first connecting plate 371 , the second connecting plate 372 , the fourth connecting plate 374 , and the third connecting plate 373 are arranged in sequence along a direction close to the heat exchanger body 33 (from right to left) and stacked on top of each other. The structures of the first connecting plate 371 and the third connecting plate 373 can be found in the relevant description above and will not be repeated here.

[0131] The second connecting plate 372 includes a second connecting plate body 3720, a first region 3720A, a second region 3720B, two first flow guide channels 3721, and a first diverter 3723. The structures and functions of the second connecting plate body 3720, the first region 3720A, the second region 3720B, and the first diverter 3723 are described above and will not be repeated here.

[0132] The first flow guiding channels 3721 can be through-hole structures, and the two first flow guiding channels 3721 are located in the first area 3720A and the second area 3720B, respectively. The two first flow guiding channels 3721 extend away from the first through-hole 3711. For example, the first flow guiding channel 3721 located in the first area 3720A extends upward, while the first flow guiding channel 3721 located in the second area 3720B extends downward. Furthermore, the two first flow guiding channels 3721 are symmetrically distributed. For example, the two first flow guiding channels 3721 on the second connecting plate 372 are axially symmetrical or centrally symmetrical.

[0133] The third connecting plate 373 is provided with a plurality of first connection holes 3731, and the fourth connecting plate 374 includes a fourth connecting plate body 3740 and a plurality of second connection holes 3741. The arrangement and correspondence between the plurality of first connection holes 3731 and the plurality of second connection holes 3741 can be found in the previous description and will not be repeated here. Of the plurality of second connection holes 3741, half of the second connection holes 3741 can communicate with one first guide channel 3721, while the other half can communicate with another first guide channel 3721.

[0134] It should be noted that, except that the first guide channel 3721 does not need to be connected to the first connection hole 3731 and the second connection hole 3741 through the second guide channel 3722, the structure and function of the first guide channel 3721 are similar to those of the first guide channel 3721 described above.

[0135] In some embodiments, as shown in Figure 18, a portion of the first guide channel 3721 close to the first diversion portion 3723 can be a channel structure 3726 bent along a curve to reduce the flow rate of the refrigerant in the first guide channel 3721, allowing the refrigerant to flow slowly, which is conducive to improving the uniformity of the refrigerant diversion.

[0136] In some embodiments, as shown in FIG18 , the fourth connecting plate 374 further includes a plurality of first preset holes 3745 , each configured to adjust the refrigerant pressure in two adjacent second connecting holes 3741 . At least one first preset hole 3745 can be provided between two second connecting holes 3741 corresponding to two adjacent second flat tubes 332 , and the two second connecting holes 3741 are connected via the at least one first preset hole 3745 . This ensures that the refrigerant pressure in the two second connecting holes 3741 is substantially the same, facilitating uniform refrigerant flow within the two adjacent second connecting holes 3741 .

[0137] When only the fourth connecting plate 374 is provided between the second connecting plate 372 and the third connecting plate 373, the first preset hole 3745 can be directly connected to the corresponding two adjacent second connecting holes 3741. In this way, when there is more refrigerant in one of the two second connecting holes 3741, resulting in a higher pressure in the corresponding accommodating cavity 38 (as shown in FIG. 20 ), some of the refrigerant can flow into the other second connecting hole 3741 through the first preset hole 3745, thereby making the pressures in the two adjacent second connecting holes 3741 approximately the same, thereby facilitating uniform distribution of the refrigerant.

[0138] It should be noted that if the first preset hole 3745 needs to be used in conjunction with other structures similar to the first preset hole 3745 to evenly distribute the refrigerant between the corresponding two adjacent second connection holes 3741, then the first preset hole 3745 and the second connection hole 3741 can be spaced apart on the fourth connecting plate body 3740. If the first preset hole 3745 can be used to evenly distribute the refrigerant between the corresponding two adjacent second connection holes 3741 without having to be used in conjunction with other structures similar to the first preset hole 3745, then on the fourth connecting plate body 3740, both ends of the first preset hole 3745 can be directly connected to the two adjacent second connection holes 3741.

[0139] Figure 19 is another exploded view of the first flow diverter assembly in Figure 10. The first connecting plate 371 and the third connecting plate 373 are not shown in Figure 19. Figure 20 is a schematic diagram of a flow channel structure of the first flow diverter assembly in Figure 19.

[0140] 19 , the first flow diverter assembly 37 further includes a sixth connecting plate 376 and a seventh connecting plate 377. The sixth connecting plate 376 and the seventh connecting plate 377 are disposed between the second connecting plate 372 and the fourth connecting plate 374, and the sixth connecting plate 376 is closer to the second connecting plate 372 than the seventh connecting plate 377.

[0141] The sixth connecting plate 376 is provided with a plurality of third through holes 3761, and the plurality of third through holes 3761 correspond to two first guide channels 3721. For example, one first guide channel 3721 is connected to one third through hole 3761, and the third through hole 3761 can be close to the end of the first guide channel 3721 away from the first through hole 3711.

[0142] The seventh connecting plate 377 includes a seventh connecting plate body 3770, two fourth guide channels 3771, two fifth guide channels 3772, a fourth diverter 3773, and a fifth diverter 3774. The two fourth guide channels 3771 and the two fifth guide channels 3772 are arranged on the seventh connecting plate body 3770 and are through-hole structures. The two fourth guide channels 3771 are connected to the first guide channel 3721 located in the first area 3720A through a third through-hole 3761. The two fourth guide channels 3771 are symmetrically distributed (such as axially symmetrically distributed or centrally symmetrically distributed) and are separated by the fourth diverter 3773. For example, the fourth diverter 3773 is arranged between one end of the two fourth guide channels 3771 close to the corresponding third through-hole 3761, and is located on the side of the third through-hole 3761 away from the second connecting plate 372 (such as the left side). The fourth diverter portion 3773 is configured to divert the refrigerant flowing from the corresponding third through hole 3761 to the two fourth guide channels 3771. The two fifth guide channels 3772 are connected to the first guide channel 3721 located in the second zone 3720B through another third through hole 3761. The two fifth guide channels 3772 are symmetrically distributed (such as axisymmetric distribution or center-symmetrical distribution) and are separated by the fifth diverter portion 3774. For example, the fifth diverter portion 3774 is arranged between one end of the two fifth guide channels 3772 close to the corresponding third through hole 3761, and is located on the side of the third through hole 3761 away from the second connecting plate 372 (such as the left side). The fifth diverter portion 3774 is configured to divert the refrigerant flowing from the corresponding third through hole 3761 to the two fifth guide channels 3772.

[0143] Taking the two second connection holes 3741 used to connect two adjacent second flat tubes 332 as a group of second connection holes 3741 as an example, a fourth guide channel 3771 can be connected to one or more groups of second connection holes 3741, and a fifth guide channel 3772 can also be connected to one or more groups of second connection holes 3741. In this way, the two fourth guide channels 3771 and the two fifth guide channels 3772 can be spaced apart along the first direction, and the two fourth guide channels 3771 and the two fifth guide channels 3772 can be connected to multiple (such as 8) second connection holes 3741 to connect multiple (such as 8) second flat tubes 332, facilitating efficient diversion of the refrigerant. It should be noted that the two fourth guide channels 3771 and the two fifth guide channels 3772 can be axially symmetrical or centrally symmetrical, or can be arranged with reference to the first guide channel 3721, and this is not limited in the present disclosure.

[0144] The following description will take the example of eight first connection holes 3731 and second connection holes 3741. As shown in Figure 19, the seventh connecting plate 377 also includes a plurality of third connection holes 3775. The plurality of third connection holes 3775 correspond to the plurality of second connection holes 3741, and the plurality of third connection holes 3775 are respectively connected to the plurality of second connection holes 3741. The plurality of third connection holes 3775 can be bar-shaped holes to correspond to the shape of the second connection holes 3741. In this case, one fourth guide channel 3771 can be connected to two third connection holes 3775, and the two third connection holes 3775 are adjacent and located at the same end of the fourth guide channel 3771 (such as the end of the fourth guide channel 3771 away from the fourth diverter 3773). Furthermore, a fifth guide channel 3772 may also be connected to two adjacent third connection holes 3775 , which are adjacent and located at the same end of the fifth guide channel 3772 (such as the end of the fifth guide channel 3772 away from the fifth diversion portion 3774 ).

[0145] In this case, as shown in Figure 20, the first connection hole 3731, the second connection hole 3741, and the third connection hole 3775 collectively constitute the accommodating chamber 38 and are each part of the accommodating chamber 38. Thus, by providing multiple third connection holes 3775, the volume of the accommodating chamber 38 between the first connection hole 3731 and the second connection hole 3741 can be increased, facilitating uniform diversion of the refrigerant. It should be noted that since the third connection hole 3775 is not provided in Figure 17, the first connection hole 3731 and the second connection hole 3741 in Figure 17 collectively constitute the accommodating chamber 38.

[0146] In some embodiments, as shown in FIG19 , when the fourth connecting plate 374 includes a plurality of first preset holes 3745, the seventh connecting plate 377 also includes a plurality of second preset holes 3776, and one first preset hole 3745 corresponds to two second preset holes 3776. For example, one first preset hole 3745 is connected to two second preset holes 3776, and the two second preset holes 3776 are adjacent and located on a side of the first preset hole 3745 that is closer to the second connecting plate 372 (e.g., the right side).

[0147] For example, two adjacent third connection holes 3775 connected by a fourth flow guide channel 3771 or a fifth flow guide channel 3772 form a group of third connection holes 3775, and two adjacent second preset holes 3776 form a group of second preset holes 3776. A group of second preset holes 3776 is disposed between corresponding groups of third connection holes 3775. One second preset hole 3776 in the group of second preset holes 3776 can be connected to one third connection hole 3775, and another second preset hole 3776 can be connected to another third connection hole 3775. Furthermore, the two second preset holes 3776 in the group of second preset holes 3776 are spaced apart. For example, the two second preset holes 3776 in the group of second preset holes 3776 are spaced apart at their ends away from the corresponding third connection holes 3775. In addition, the two second preset holes 3776 in the group of second preset holes 3776 can be located on the same side of the corresponding fourth guide channel 3771 or the corresponding fifth guide channel 3772, and the ends of the two second preset holes 3776 away from the corresponding third connecting hole 3775 can be connected to the same first preset hole 3745.

[0148] In this way, by setting the first preset hole 3745 and the second preset hole 3776, the refrigerant can circulate between the corresponding two third connecting holes 3775 through a group of second preset holes 3776, the corresponding first preset holes 3745 and the corresponding fourth guide channel 3771 (or the corresponding fifth guide channel 3772), so that the pressure of the refrigerant at the inlet of the two adjacent second flat tubes 332 is roughly the same, which is conducive to the uniform distribution of the refrigerant.

[0149] In some embodiments, as shown in FIG19 , the sixth connecting plate 376 is further provided with a plurality of third preset holes 3762. One third preset hole 3762 corresponds to two second preset holes 3776. For example, two second preset holes 3776 in a group of second preset holes 3776 may have ends distal to the corresponding third connection holes 3775 connected to the same third preset hole 3762. This connection between the second preset holes 3776 and the third preset holes 3762 further adjusts the refrigerant pressure between two adjacent third connection holes 3775, ensuring that the refrigerant pressure at the inlets of two adjacent second flat tubes 332 is approximately the same, thereby improving the uniformity of refrigerant flow distribution.

[0150] The following is an example of the flow process of the refrigerant in the first diversion component 37, taking the first connecting plate 371, the second connecting plate 372, the sixth connecting plate 376, the seventh connecting plate 377, the fourth connecting plate 374 and the third connecting plate 373 as being fitted in sequence from right to left, the first guide channel 3721, the fourth guide channel 3771 and the fifth guide channel 3772 mainly extending along the first direction, and the first connecting hole 3731, the second connecting hole 3741 and the third connecting hole 3775 extending along the third direction as an example.

[0151] As shown in Figure 20, the refrigerant can flow from right to left through the first through hole 3711 into the first diversion assembly 37. The left end of the first through hole 3711 is connected to two adjacent first flow guide channels 3721. After being diverted by the first diversion portion 3723 between the two first flow guide channels 3721, the refrigerant from the first through hole 3711 can flow evenly into the two first flow guide channels 3721.

[0152] In the first guide channel 3721 near the top of the first through hole 3711, the refrigerant first passes through the bent channel structure 3726 for buffering and deceleration, then flows upward along the first guide channel 3721, and flows into two adjacent fourth guide channels 3771 through another third through hole 3761 at the upper end of the first guide channel 3721.

[0153] Under the action of the fourth diverter 3773 between the two fourth flow guide channels 3771, the refrigerant can flow evenly into the two fourth flow guide channels 3771. In the fourth flow guide channel 3771 below the corresponding third through hole 3761, the refrigerant first passes through the curved flow channel for buffering and deceleration, and then flows downward along the fourth flow guide channel 3771. Because the fourth flow guide channel 3771 is connected to two adjacent and spaced third connecting holes 3775, the refrigerant in the fourth flow guide channel 3771 can flow into the two third connecting holes 3775 in sequence, and can fill the accommodating cavity 38 where the two third connecting holes 3775 are located along the third direction.

[0154] As shown in Figure 20, between two adjacent third connection holes 3775, two second preset holes 3776, a first preset hole 3745 and a third preset hole 3762 form a pressure-dividing channel structure 39. The pressure-dividing channel structure 39 is connected to the corresponding two third connection holes 3775 so that the refrigerant can circulate between the two third connection holes 3775, so that the pressure of the refrigerant in the two accommodating cavities 38 corresponding to the two third connection holes 3775 is roughly the same, which is conducive to the uniform diversion of the refrigerant. The pressure-dividing channel structure 39 can be set between any two adjacent third connection holes 3775, and multiple pressure-dividing channel structures 39 can be set between two adjacent third connection holes 3775. For example, one pressure-dividing channel structure 39 is set on the front side of two adjacent third connection holes 3775, and another pressure-dividing channel structure 39 is set on the back side of the two adjacent third connection holes 3775. Since two adjacent accommodating cavities 38 can be connected to two adjacent second flat tubes 332 respectively through the two first connecting holes 3731, the refrigerant pressures at the inlets of the two second flat tubes 332 are approximately the same, and the refrigerant can flow evenly into the two adjacent second flat tubes 332.

[0155] It should be noted that when the refrigerant flow rate in a accommodating cavity 38 or a second flat tube 332 is high, the resistance to the refrigerant flowing through the second flat tube 332 increases because the resistance loss along the path is proportional to the refrigerant flow rate, making it difficult for the refrigerant to flow into the second flat tube 332. However, by providing a pressure-dividing channel structure 39, the refrigerant in the accommodating cavity 38 can flow through the pressure-dividing channel structure 39 into the adjacent accommodating cavity 38 with a smaller refrigerant flow rate, thereby achieving uniform refrigerant flow distribution between the two adjacent second flat tubes 332. Similarly, when the refrigerant flow rate in a second flat tube 332 is low, the refrigerant resistance flowing through the second flat tube 332 is low, and the accommodating cavity 38 connected to the second flat tube 332 can attract the refrigerant from the other adjacent accommodating cavity 38. In this case, the pressure-dividing channel structure 39 can effectively solve this problem.

[0156] It should be noted that the dimensions of the flow channel in the first flow diversion assembly 37 can be close to those of a pressure-reducing tube (e.g., a capillary tube) to ensure that there is no space for gas-liquid separation in the refrigerant flowing within the first flow diversion assembly 37. Furthermore, for a heat exchanger assembly 30 with top or side air outlets, the wind field across the multiple flat tubes connected to the same first flow diversion assembly 37 does not vary significantly, further facilitating uniform refrigerant distribution.

[0157] When a pressure-dividing channel structure 39 is provided at each of the front and rear ends of two adjacent third connecting holes 3775, and the first flow diversion assembly 37 is connected to eight second flat tubes 332 via eight third connecting holes 3775, simulation calculations are performed on the diversion effect of the first flow diversion assembly 37 at three refrigerant flow rates: a first flow rate (e.g., 1.651 m / s), a second flow rate (e.g., 0.826 m / s), and a third flow rate (e.g., 0.413 m / s). Furthermore, the same simulation calculations are performed on the diversion effect of the first flow diversion assembly 37 when no pressure-dividing channel structure 39 is provided between two adjacent third connecting holes 3775. In the first flow diversion assembly 37 equipped with the pressure-dividing channel structure 39, the unevenness of the refrigerant flow after diversion is 2.75%, 2.15%, and 3.7%, respectively. In the first flow diversion assembly 37 without the pressure-dividing flow channel structure 39, the unevenness of the refrigerant flow after diversion is 5.5%, 12.2%, and 16.1%, respectively. Thus, by providing the pressure-dividing flow channel structure 39, the uniformity of the refrigerant diversion by the first flow diversion assembly 37 can be improved, and the faster the refrigerant flow rate, the better the effect of improving the uniformity of the refrigerant diversion by the first flow diversion assembly 37.

[0158] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0159] Those skilled in the art will understand that the scope of the present disclosure is not limited to the above specific embodiments, and that certain elements of the embodiments may be modified and replaced without departing from the spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Claims

1. An air conditioner, comprising: case; Four-way valve; as well as A heat exchanger assembly is installed in the shell, and the heat exchanger assembly includes: The heat exchanger body is configured to perform heat exchange with the refrigerant; a flow diversion assembly configured to divert the refrigerant to improve the uniformity of the refrigerant flowing into the heat exchanger body; and The gas collecting pipe extends in a first direction and is connected to the four-way valve, the flow dividing assembly and the gas collecting pipe are located on the same side of the heat exchanger body, and along the flow direction of the refrigerant, the flow dividing assembly and the gas collecting pipe are respectively connected to opposite sides of the heat exchanger body; wherein The heat exchanger body comprises: a plurality of first flat tubes, connected to the gas collecting pipe and arranged along the first direction, the plurality of first flat tubes respectively extending along a second direction, two of the plurality of first flat tubes being arranged near both ends of the gas collecting pipe along the first direction, the second direction being perpendicular to the first direction; and a plurality of second flat tubes, connected to the flow diversion assembly and arranged along the first direction, the plurality of second flat tubes respectively extending along the second direction; Between the two first flat tubes near both ends of the gas collecting pipe, every two second flat tubes and every two first flat tubes are alternately and spaced apart along the first direction, so that the ends of every two first flat tubes near the gas collecting pipe are adjacent to each other, and the ends of every two second flat tubes near the flow dividing assembly are adjacent to each other; The end of the first flat tube close to the gas collecting pipe is connected to the gas collecting pipe, and the other end of the first flat tube away from the gas collecting pipe is connected and connected to the other end of the adjacent second flat tube away from the diversion component, and the end of the second flat tube close to the diversion component is connected and connected to the diversion component.

2. The air conditioner according to claim 1, wherein The flow diversion component includes a first flow diversion component, the first flow diversion component is a laminated structure, and the first flow diversion component includes: The first connecting plate is provided with a first through hole; The second consecutive board includes: Second connecting plate body; Two first flow guide channels are provided on the second connecting plate body, and ends of the two first flow guide channels close to each other are connected to the first through hole; and a plurality of second flow guiding channels, wherein ends of the two first flow guiding channels away from the first through hole are in communication with two or more second flow guiding channels; and The third connecting plate is provided with a plurality of first connecting holes, the plurality of first connecting holes are arranged at intervals along the first direction, and the plurality of first connecting holes are respectively connected to and communicated with the plurality of second flat tubes, an end of the second guide channel away from the first guide channel connected to the second guide channel is communicated with one or more first connecting holes, and the first connecting plate, the second connecting plate and the third connecting plate are arranged in sequence along a direction close to the heat exchanger body and stacked on each other.

3. The air conditioner according to claim 2, wherein: The second connecting plate satisfies at least one of the following: The second connecting plate further includes a first diverter portion, the first diverter portion being disposed between ends of the two first flow guide channels adjacent to the first through hole, and the first diverter portion being configured to divert the refrigerant from the first through hole so that the diverted refrigerant flows into the two first flow guide channels respectively; or, The second connecting plate also includes a second diverter portion, which corresponds to the first guide channel. The second diverter portion is arranged between the two second guide channels connected to the corresponding first guide channels, and the second diverter portion is configured to divert the refrigerant from the corresponding first guide channel so that the diverted refrigerant flows into the two second guide channels connected to the corresponding first guide channel.

4. The air conditioner according to claim 2 or 3, wherein: The first flow diversion assembly further includes a fourth connecting plate, which is disposed between the second connecting plate and the third connecting plate, and includes: a fourth connecting plate body; and A plurality of second connection holes are provided on the fourth connecting plate body and are provided corresponding to the plurality of first connection holes. The first connecting hole is communicated with the corresponding second guide channel through the corresponding second connecting hole.

5. The air conditioner according to claim 4, wherein The fourth connecting plate also includes a plurality of first diversion channels, the plurality of first diversion channels corresponding to the plurality of second connecting holes, two first diversion channels are respectively arranged along the first direction between two second connecting holes connected to the same second guide channel, and one end of the two first diversion channels is respectively connected to the corresponding second connecting holes, and the other ends of the two first diversion channels away from the corresponding second connecting holes are close to each other and connected to the corresponding second guide channel.

6. The air conditioner according to claim 5, wherein The fourth connecting plate further includes a plurality of second diversion channels, and the plurality of second diversion channels correspond to the plurality of second guide channels; In the two first diversion channels connected to the same second guide channel, the second diversion channel is arranged between the two first diversion channels and is connected to the two first diversion channels, one end of the second diversion channel is connected to the other ends of the two first diversion channels that are close to each other, and the other end of the second diversion channel extends along a third direction and is connected to the second guide channel, and the third direction is perpendicular to the first direction and the second direction.

7. The air conditioner according to claim 6, wherein The fourth connecting plate also includes a plurality of third diversion parts, and the plurality of third diversion parts are arranged corresponding to the plurality of second diversion channels. The third diversion part is arranged at one end of the corresponding second diversion channel close to the corresponding two first diversion channels, and is located between the corresponding two first diversion channels. The third diversion part is configured to partially separate the corresponding two first diversion channels to divert the refrigerant flowing from the second diversion channel to the corresponding two first diversion channels.

8. The air conditioner according to claim 6 or 7, wherein: The first flow diversion assembly further includes a fifth connecting plate, the fifth connecting plate being disposed between the second connecting plate and the fourth connecting plate, and the fifth connecting plate being configured to separate the first flow guiding channel and the second connecting hole, the first flow guiding channel and the first diverting channel, the first flow guiding channel and the second diverting channel, the second flow guiding channel and the second connecting hole, and the second flow guiding channel and the first diverting channel; The fifth connecting plate is provided with a plurality of second through holes, and the plurality of second through holes are arranged corresponding to the plurality of second guide channels. An end of the second diversion channel away from the corresponding first diversion channel is connected to the corresponding second guide channel through the second through hole.

9. The air conditioner according to any one of claims 2 to 8, wherein: The two first flow guiding channels are symmetrical structures, and the first flow guiding channels include: a first guide portion; a second flow guide portion, connected to the first flow guide portion, the first flow guide portion being closer to the first through hole than the second flow guide portion, the second flow guide portion being a straight line structure, and being configured to smoothly convey the refrigerant guided through the first flow guide portion to reduce flow fluctuations of the refrigerant; and A plurality of bending portions are in a curved structure with a right angle to a circular arc. The plurality of bending portions are configured to adjust the flow direction of the refrigerant, and at least one of the plurality of bending portions is located between the first guide portion and the second guide portion to connect the first guide portion and the second guide portion.

10. The air conditioner according to claim 9, wherein The second connecting plate also includes two third guide channels, and the two third guide channels correspond to the two first guide channels. The third guide channels are arranged between the first guide part and the second guide part, and are connected to the bent part connected to the second guide part. In the third direction, the second guide part is located between the third guide channel and the bent part. The third guide channel is configured to cause the refrigerant flowing into the third guide channel to form a vortex to improve the uniformity of the refrigerant flowing into the second guide part. The third direction is perpendicular to the first direction and the second direction.

11. The air conditioner according to claim 1, wherein The flow diversion component includes a first flow diversion component, the first flow diversion component is a laminated structure, and the first flow diversion component includes: The first connecting plate is provided with a first through hole; The second consecutive board includes: a second connecting plate body; and Two first flow guide channels are provided on the second connecting plate body, and ends of the two first flow guide channels close to each other are connected to the first through hole; A third connecting plate is provided with a plurality of first connecting holes, the plurality of first connecting holes are spaced apart along the first direction, the plurality of first connecting holes are respectively connected to and communicate with the plurality of second flat tubes; and The fourth consecutive board includes: a fourth connecting plate body; and A plurality of second connection holes are arranged on the fourth connecting plate body and are arranged corresponding to the plurality of first connection holes, half of the plurality of second connection holes are connected to the first guide channel, and the other half of the plurality of second connection holes are connected to another first guide channel, the first connection hole is connected to the corresponding first guide channel through the corresponding second connection hole, and the first connecting plate, the second connecting plate, the fourth connecting plate and the third connecting plate are arranged in sequence along the direction close to the heat exchanger body and stacked on each other.

12. The air conditioner according to claim 11, wherein The fourth connecting plate also includes a plurality of first preset holes, at least one of the plurality of first preset holes is arranged between two second connecting holes corresponding to two adjacent second flat tubes, and the two second connecting holes are connected through the at least one first preset hole, and the first preset hole is configured to adjust the refrigerant pressure in the two adjacent second connecting holes.

13. The air conditioner according to claim 12, wherein The first diversion component further includes: a sixth connecting plate, having a plurality of third through holes, the plurality of third through holes corresponding to the two first flow guiding channels, and the third through holes being close to an end of the corresponding first flow guiding channel away from the first through holes; and The seventh connecting plate, wherein the sixth connecting plate and the seventh connecting plate are arranged between the second connecting plate and the fourth connecting plate, and the sixth connecting plate is closer to the second connecting plate than the seventh connecting plate, and the seventh connecting plate includes: The seventh connecting plate body; Two fourth guide channels are provided on the seventh connecting plate body, the two fourth guide channels are symmetrically distributed, and the two fourth guide channels are connected to the corresponding first guide channels through the corresponding third through holes; a fourth diverter portion, disposed between ends of the two fourth guide channels close to the corresponding third through holes and located on a side of the corresponding third through holes away from the second connecting plate, the fourth diverter portion being configured to divert refrigerant flowing from the corresponding third through holes to the two fourth guide channels; Two fifth guide channels are provided on the seventh connecting plate body, the two fifth guide channels are symmetrically distributed, and the two fifth guide channels are connected to the corresponding first guide channels through the corresponding third through holes; and A fifth diverter is provided between one end of the two fifth guide channels close to the corresponding third through hole and located on a side of the corresponding third through hole away from the second connecting plate, and the fifth diverter is configured to divert the refrigerant flowing from the corresponding third through hole to the two fifth guide channels; wherein The two second connection holes connecting the two adjacent second flat tubes form a group of second connection holes, the fourth guide channel is connected to one or more second connection holes, and the fifth guide channel is connected to one or more second connection holes.

14. The air conditioner according to claim 13, wherein The seventh connecting plate further includes a plurality of third connecting holes, the plurality of third connecting holes corresponding to the plurality of second connecting holes, and the plurality of third connecting holes are respectively connected to the plurality of second connecting holes; The fourth guide channel is connected to the two third connection holes, and the two third connection holes are adjacent and located at an end of the fourth guide channel away from the fourth diversion portion. The fifth guide channel is connected to the two third connection holes, and the two third connection holes are adjacent and located at an end of the fifth guide channel away from the fifth diversion portion. The two adjacent third connection holes are two third connection holes arranged corresponding to the same group of second connection holes.

15. The air conditioner according to claim 14, wherein The seventh connecting plate further includes a plurality of second preset holes, and one first preset hole corresponds to two second preset holes; The two adjacent third connecting holes connected to the fourth guide channel or the fifth guide channel form a group of the third connecting holes, and the two adjacent second preset holes form a group of the second preset holes, a group of the second preset holes is arranged between the corresponding group of the third connecting holes, one second preset hole in a group of the second preset holes is connected to a third connecting hole, another second preset hole in a group of the second preset holes is connected to another third connecting hole, the two second preset holes in a group of the second preset holes are spaced apart and are located on the same side of the corresponding fourth guide channel or the fifth guide channel, and the two second preset holes in a group of the second preset holes are away from each other. One end of the corresponding third connecting hole is connected to the same first preset hole.

16. The air conditioner according to claim 15, wherein The sixth connecting plate is further provided with a plurality of third preset holes, one third preset hole corresponds to two second preset holes, and the ends of the two second preset holes in a group of second preset holes away from the corresponding third connecting hole are connected to the same third preset hole.

17. The air conditioner according to any one of claims 11 to 16, wherein: The second connecting plate also includes a first diverter portion, which is arranged between one end of the two first guide channels close to the first through hole, and the first diverter portion is configured to divert the refrigerant from the first through hole so that the diverted refrigerant flows into the two first guide channels respectively.

18. The air conditioner according to any one of claims 2 to 17, wherein: The heat exchanger body also includes: a plurality of third flat tubes arranged along the first direction, each of the plurality of third flat tubes extending along the second direction, the number of the plurality of third flat tubes being the same as the number of the first flat tubes, and each of the plurality of third flat tubes corresponding to the plurality of first flat tubes, two of the plurality of third flat tubes being arranged near two ends of the gas collecting pipe along the first direction, and the two third flat tubes being at the same height as the two first flat tubes near two ends of the gas collecting pipe; a plurality of fourth flat tubes arranged along the first direction, each of the plurality of fourth flat tubes extending along the second direction, the number of the third flat tubes being the same as the number of the fourth flat tubes; between the two third flat tubes near both ends of the gas collecting pipe, every two fourth flat tubes and every two third flat tubes are alternately and spaced apart along the first direction, so that each third flat tube is disposed adjacent to the fourth flat tube; one end of the fourth flat tube near the gas collecting pipe is connected to and communicates with the gas collecting pipe, and the other end of the fourth flat tube away from the gas collecting pipe is connected to and communicates with one end of an adjacent third flat tube away from the gas collecting pipe; and A plurality of connecting tubes are provided, the number of which is the same as that of the first flat tubes, wherein the one end of the first flat tube close to the gas collecting tube is connected and communicated with the other end of the corresponding third flat tube close to the gas collecting tube via the connecting tube.

19. The air conditioner according to claim 18, wherein The air conditioner further includes a fan assembly, which is installed in the housing and is configured to drive air to flow through the heat exchanger assembly; The heat exchanger body further includes a plurality of fins, each of which extends along the first direction. The fins are provided with a plurality of sockets spaced apart along the first direction, the sockets are open on a side away from the fan assembly, and the plurality of sockets are open toward the same side. At least one of the first flat tube, the second flat tube, the third flat tube, or the fourth flat tube is inserted into the corresponding socket and is in contact with and connected to the fin. The multiple fins are arranged at intervals along at least one of the second direction or the third direction and are located on the windward side of at least one of the first flat tube, the second flat tube, the third flat tube, or the fourth flat tube. The third direction is perpendicular to the first direction and the second direction.

20. The air conditioner according to any one of claims 2 to 19, wherein: The air conditioner further includes a throttling device configured to adjust the pressure of the refrigerant flowing through the heat exchanger assembly, and the flow diverter assembly further includes a second flow diverter assembly, the second flow diverter assembly including: a main liquid pipe, one end of which is connected to the throttling device; A diversion part, the other end of the main liquid pipe is connected to one end of the diversion part; and A plurality of branch pipes are respectively connected to the first diversion component and the other end of the diversion part.

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