Heat exchanger assembly, outdoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a heat exchanger assembly, an outdoor unit and an air conditioner. The heat exchanger assembly comprises a first heat exchange unit and a second heat exchange unit. The first heat exchange unit comprises a first heat exchange section and a second heat exchange section arranged at one end of the first heat exchange section. The second heat exchange section extends towards one side of the first heat exchange section. The second heat exchange unit comprises a third heat exchange section arranged at an interval with the first heat exchange section, and a fourth heat exchange section and a fifth heat exchange section which are connected to the two ends of the third heat exchange section correspondingly. The fourth heat exchange section and the fifth heat exchange section extend towards the same side of the third heat exchange section. And the fourth heat exchange section and the second heat exchange section are oppositely arranged. According to the heat exchanger assembly, through the arrangement of the first heat exchange unit and the second heat exchange unit, the length of a single heat exchange pipe can be shortened, and then the evaporation effect of a refrigerant in the heat exchange pipe is improved, so that the heat exchange efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to a heat exchanger assembly, an outdoor unit and an air conditioner. Background Art

[0002] At present, there are many types of air conditioners, such as air conditioners with one indoor unit or multi-split air conditioners with multiple indoor units. The outdoor unit of the multi-split air conditioner usually adopts top outlet or side outlet.

[0003] In the related art, a top-outlet outdoor unit for a multi-split system is provided, which includes a heat exchanger, a plurality of heat exchanger plates and heat exchange tubes passing through the plurality of heat exchanger plates.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The top-outlet outdoor unit in the related art includes a heat exchanger. In order to realize the operation of the multi-split system, the heat exchanger is relatively long, so that the single heat exchange tube in the heat exchanger is also relatively long. For air conditioners with larger capacities, the evaporation effect of the refrigerant in the heat exchange tube is poor due to the long single heat exchange tube, which reduces the heat exchange efficiency of the heat exchanger.

[0006] For example, for a heat exchange tube with a length of 4m, its unfolded length is 8m. When the air conditioning system is running in heating mode, if the opening of the electronic expansion valve is too small, the refrigerant will evaporate completely before it reaches the end of the heat exchange tube, causing most of the heat exchange tube section to be unusable. If the opening of the electronic expansion valve is too large, the temperature of the refrigerant at the beginning of the heat exchange tube will not be very low, resulting in insufficient heat exchange temperature difference, affecting the heat exchange efficiency.

[0007] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0008] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0009] The disclosed embodiments provide a heat exchanger assembly, an outdoor unit, and an air conditioner. By disposing a first heat exchange unit and a second heat exchange unit, the length of a single heat exchange tube can be shortened, thereby improving the evaporation effect of the refrigerant in the heat exchange tube to improve the heat exchange efficiency.

[0010] In some embodiments, a heat exchanger assembly is provided, comprising: a first heat exchange unit, comprising a first heat exchange section and a second heat exchange section arranged at one end of the first heat exchange section, the second heat exchange section extending toward one side of the first heat exchange section; a second heat exchange unit, comprising a third heat exchange section arranged at an interval from the first heat exchange section, and a fourth heat exchange section and a fifth heat exchange section respectively connected to the two ends of the third heat exchange section, the fourth heat exchange section and the fifth heat exchange section both extending toward the same side of the third heat exchange section; wherein the fourth heat exchange section is arranged opposite to the second heat exchange section.

[0011] In this embodiment, the heat exchanger assembly composed of the first heat exchange unit and the second heat exchange unit can replace the heat exchanger in the prior art. That is to say, the lengths of the first heat exchange unit and the second heat exchange unit are both shorter than the lengths of the heat exchangers of the outdoor units in the prior art, thereby shortening the lengths of the single heat exchange tubes in the first heat exchange unit and the second heat exchange unit, improving the evaporation effect of the refrigerant, and increasing the heat exchange efficiency of the heat exchanger.

[0012] Optionally, the first heat exchange section includes: a first shell defining a first installation cavity; the second heat exchange section includes a second shell connected to one end of the first shell, the second shell defining a second installation cavity connected to the first installation cavity; the first heat exchange unit also includes a first heat exchange tube group arranged in the first installation cavity and the second installation cavity.

[0013] In this embodiment, the first shell and the second shell define a first installation cavity and a second installation cavity that are connected to each other, providing an installation space for the first heat exchange tube group. The heat exchange work of the first heat exchange unit can be realized through the first heat exchange tube group.

[0014] Optionally, the first heat exchange unit further includes: a first liquid separation head; a first gas collection pipe; the first heat exchange tube group includes a plurality of first connection ports all connected to the first liquid separation head and a plurality of second connection ports all connected to the first gas collection pipe.

[0015] In this embodiment, the multiple first connecting ports of the first heat exchange tube group are all connected to the first liquid distribution head, and the multiple second connecting ports of the first heat exchange tube group are all connected to the first gas collecting pipe, so as to realize the connection between the first heat exchange unit and the external structure (such as a compressor, an electronic expansion valve, etc.) to realize the circulation of the refrigerant and further realize heat exchange.

[0016] Optionally, the third heat exchange section includes: a third shell defining a third installation cavity; the fourth heat exchange section includes a fourth shell connected to one end of the third shell, the fourth shell defining a fourth installation cavity communicating with the third installation cavity; the fifth heat exchange section includes a fifth shell connected to one end of the third shell away from the fourth shell, the fifth shell defining a fifth installation cavity communicating with the third installation cavity; the second heat exchange unit also includes a second heat exchange tube group arranged in the communicating fourth installation cavity, the third installation cavity and the fifth installation cavity.

[0017] In this embodiment, the fourth shell, the third shell and the fifth shell define a fourth installation cavity, a third installation cavity and a fifth installation cavity which are connected to provide an installation space for the second heat exchange tube group. The heat exchange work of the second heat exchange unit can be realized through the second heat exchange tube group.

[0018] Optionally, the first heat exchange tube group includes: one or more rows of heat exchange tubes; when the first heat exchange tube group includes multiple rows of heat exchange tubes, the multiple rows of heat exchange tubes are spaced apart along the width direction of the first heat exchange unit; the second heat exchange tube group includes one or more rows of heat exchange tubes; when the second heat exchange tube group includes multiple rows of heat exchange tubes, the multiple rows of heat exchange tubes are spaced apart along the width direction of the second heat exchange unit.

[0019] In this embodiment, the heat exchange tube is used for the circulation of refrigerant to achieve heat exchange. When the first heat exchange tube group includes multiple rows of heat exchange tubes, the multiple rows of heat exchange tubes are arranged at intervals along the width direction of the first heat exchange unit to improve the heat exchange effect of the first heat exchange unit. When the second heat exchange tube group includes multiple rows of heat exchange tubes, the multiple rows of heat exchange tubes are arranged at intervals along the width direction of the second heat exchange unit to improve the heat exchange effect of the second heat exchange unit.

[0020] Optionally, the second heat exchange tube group includes: multiple third connection ports; multiple fourth connection ports; the second heat exchange unit also includes a second liquid distribution head connected to a part of the third connection ports, a third liquid distribution head connected to another part of the third connection ports, and a second air collecting pipe connected to multiple fourth connection ports.

[0021] In this embodiment, part of the plurality of third connection ports are connected to the second liquid distributor, and the other part is connected to the third liquid distributor, which can not only realize the connection between the second heat exchange unit and the external structure (such as an electronic expansion valve, etc.), but also improve the heat exchange effect. The plurality of fourth connection ports are all connected to the second gas collecting pipe, so as to realize the connection between the second heat exchange unit and the external structure (such as a compressor, etc.), so as to realize the circulation of the refrigerant and further realize the heat exchange.

[0022] Optionally, the length of the first heat exchange unit is less than 3000 mm; the length of the second heat exchange unit is less than 3000 mm.

[0023] In this embodiment, the length of the first heat exchange unit and the length of the second heat exchange unit are both less than 3000 mm, which can improve the evaporation effect of the refrigerant in the heat exchange tube to improve the heat exchange efficiency of the heat exchanger.

[0024] Optionally, the length of the first heat exchange section is 600 to 800 mm; the length of the second heat exchange section is 600 to 900 mm; the length of the third heat exchange section is 700 to 900 mm; the length of the fourth heat exchange section is 700 to 900 mm; and / or the length of the fifth heat exchange section is 650 to 850 mm.

[0025] In this embodiment, the length of the first heat exchange section is 600 to 800 mm, the length of the second heat exchange section is 600 to 900 mm, so that the length of the first heat exchange unit is less than 3000 mm. The length of the third heat exchange section is 700 to 900 mm, the length of the fourth heat exchange section is 700 to 900 mm, and the length of the fifth heat exchange section is 650 to 850 mm, so that the length of the second heat exchange unit is less than 3000 mm.

[0026] In some embodiments, an outdoor unit is further provided, comprising: a heat exchanger assembly as in any of the preceding embodiments.

[0027] In this embodiment, the outdoor unit includes a heat exchanger assembly as in any of the previous embodiments, thereby improving heat exchange efficiency.

[0028] In some embodiments, an air conditioner is also provided, including: an indoor unit; and an outdoor unit as described above.

[0029] In this embodiment, the air conditioner includes the aforementioned outdoor unit, and the outdoor unit has a heat exchanger assembly as in any of the previous embodiments, thereby improving heat exchange efficiency.

[0030] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0032] Figure 1 is a schematic structural diagram of a heat exchanger assembly provided in an embodiment of the present disclosure;

[0033] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0034] Figure 3 is a partial schematic top view of a heat exchanger assembly provided in yet another embodiment of the present disclosure;

[0035] Figure 4 is a structural schematic diagram of a first heat exchange unit provided by yet another embodiment of the present disclosure;

[0036] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0037] Figure 6 is a structural schematic diagram of a second heat exchange unit provided by another embodiment of the present disclosure;

[0038] Figure 7yes Figure 6 Enlarged view of center C.

[0039] Reference numerals:

[0040] 10: heat exchanger assembly; 11: heat exchanger plate;

[0041] 20: first heat exchange unit; 21: first heat exchange section; 211: first shell; 22: second heat exchange section; 221: second shell; 23: first heat exchange tube group; 231: first row of heat exchange tubes; 232: second row of heat exchange tubes; 233: third row of heat exchange tubes; 24: first liquid separation head; 25: first gas collecting pipe;

[0042] 30: second heat exchange unit; 31: third heat exchange section; 311: third shell; 32: fourth heat exchange section; 321: fourth shell; 33: fifth heat exchange section; 331: fifth shell; 34: second heat exchange tube group; 35: second liquid distributor; 36: third liquid distributor; 37: second gas collecting pipe;

[0043] 40: Heat exchange tube. DETAILED DESCRIPTION

[0044] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0045] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0047] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0048] Unless otherwise stated, the term "plurality" means two or more.

[0049] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0050] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0052] Combination Figures 1 to 7 As shown, the embodiment of the present disclosure provides a heat exchanger assembly 10. The heat exchanger assembly 10 includes a first heat exchange unit 20 and a second heat exchange unit 30. The first heat exchange unit 20 includes a first heat exchange section 21 and a second heat exchange section 22 arranged at one end of the first heat exchange section 21. The second heat exchange section 22 extends toward one side of the first heat exchange section 21. The second heat exchange unit 30 includes a third heat exchange section 31 spaced apart from the first heat exchange section 21 and a fourth heat exchange section 32 and a fifth heat exchange section 33 respectively connected to both ends of the third heat exchange section 31. The fourth heat exchange section 32 and the fifth heat exchange section 33 both extend toward the same side of the third heat exchange section 31. Among them, the fourth heat exchange section 32 is arranged opposite to the second heat exchange section 22.

[0053] In this embodiment, the first heat exchange unit 20 includes a first heat exchange section 21 and a second heat exchange section 22. The second heat exchange section 22 is arranged at one end of the first heat exchange section 21, and the second heat exchange section 22 extends toward one side of the first heat exchange section 21, so that the first heat exchange section 21 and the second heat exchange section 22 constitute an L-shaped first heat exchange unit 20.

[0054] In this embodiment, the second heat exchange unit 30 includes a third heat exchange section 31, a fourth heat exchange section 32 and a fifth heat exchange section 33. The third heat exchange section 31 is spaced apart from the first heat exchange section 21, the fourth heat exchange section 32 and the fifth heat exchange section 33 are respectively connected to both ends of the third heat exchange section 31, and the fourth heat exchange section 32 and the fifth heat exchange section 33 both extend toward the same side of the third heat exchange section 31, so that the fourth heat exchange section 32, the third heat exchange section 31 and the fifth heat exchange section 33 constitute a U-shaped second heat exchange unit 30.

[0055] In this embodiment, the fourth heat exchange section 32 is arranged opposite to the second heat exchange section 22, that is, the end surface of the fourth heat exchange section 32 away from the third heat exchange section 31 is arranged opposite to the end surface of the second heat exchange section 22 away from the first heat exchange section 21, so that the L-shaped first heat exchange unit 20 and the U-shaped second heat exchange unit 30 constitute an integral heat exchanger assembly 10.

[0056] Compared with the outdoor unit using only one heat exchanger in the prior art, the heat exchanger assembly 10 composed of the first heat exchange unit 20 and the second heat exchange unit 30 of this embodiment can replace the heat exchanger in the prior art. In other words, the lengths of the first heat exchange unit 20 and the second heat exchange unit 30 are both shorter than the lengths of the heat exchangers of the outdoor units in the prior art, thereby shortening the lengths of the single heat exchange tubes 40 in the first heat exchange unit 20 and the second heat exchange unit 30, improving the evaporation effect of the refrigerant in the heat exchange tubes 40, and improving the heat exchange efficiency of the heat exchanger.

[0057] Combination Figures 1 to 5 As shown, in some embodiments, the first heat exchange section 21 includes a first shell 211. The first shell 211 defines a first installation cavity. The second heat exchange section 22 includes a second shell 221 connected to one end of the first shell 211. The second shell 221 defines a second installation cavity connected to the first installation cavity. The first heat exchange unit 20 also includes a first heat exchange tube group 23 disposed in the first installation cavity and the second installation cavity.

[0058] In this embodiment, the first shell 211 and the second shell 221 define a first installation cavity and a second installation cavity that are connected to each other, providing an installation space for the first heat exchange tube group 23. The first heat exchange tube group 23 realizes the heat exchange work of the first heat exchange unit 20.

[0059] Optionally, the first shell 211 and the second shell 221 are an integrated structure to improve the integrity of the first heat exchange unit 20 and facilitate the installation of the first heat exchange tube group 23.

[0060] Combination Figure 1 , Figure 3 and Figure 4 As shown, optionally, a circular arc transition is used at the connection between the first shell 211 and the second shell 221. When the first heat exchange unit 20 is applied to an outdoor unit, installation space is saved.

[0061] Combination Figure 1 and Figure 4 As shown, in some embodiments, the first heat exchange unit 20 further includes a first liquid distributor 24 and a first gas collector 25. The first heat exchange tube group 23 includes a plurality of first connection ports each connected to the first liquid distributor 24 and a plurality of second connection ports each connected to the first gas collector 25.

[0062] In this embodiment, the multiple first connecting ports of the first heat exchange tube group 23 are all connected to the first liquid distributor 24, and the multiple second connecting ports of the first heat exchange tube group 23 are all connected to the first gas collecting pipe 25, so as to realize the connection between the first heat exchange unit 20 and the external structure (such as a compressor, an electronic expansion valve, etc.) to realize the circulation of the refrigerant and further realize heat exchange.

[0063] Exemplarily, one end of the first liquid distributor 24 away from the first heat exchange tube group 23 is connected to the electronic expansion valve, and one end of the first gas collector 25 away from the first heat exchange tube group 23 is connected to the compressor. When the air conditioning system is operating in a heating mode, the refrigerant after throttling by the electronic expansion valve enters the first liquid distributor 24, and after flowing out of the first liquid distributor 24, the refrigerant enters the first heat exchange tube group 23 through a plurality of first connecting ports for heat exchange, and the refrigerant after heat exchange flows out to the first gas collector 25 through a plurality of second connecting ports of the first heat exchange tube group 23, and the refrigerant flows out of the first gas collector 25 and can enter the compressor.

[0064] Combination Figure 1 and Figure 4 As shown, optionally, the first liquid dispensing head 24 is connected to the plurality of first connecting ports through a plurality of connecting pipes, respectively, so as to realize the circulation of the refrigerant between the first liquid dispensing head 24 and the plurality of first connecting ports.

[0065] Combination Figure 1 and Figure 4 As shown, optionally, the first air collecting pipe 25 is connected to the plurality of second connecting ports through a plurality of connecting pipes, respectively, so as to realize the circulation of refrigerant between the first air collecting pipe 25 and the plurality of second connecting ports.

[0066] Combination Figure 1 , Figure 3 , Figure 6 and Figure 7As shown, in some embodiments, the third heat exchange section 31 includes a third shell 311. The third shell 311 defines a third installation cavity. The fourth heat exchange section 32 includes a fourth shell 321 connected to one end of the third shell 311. The fourth shell 321 defines a fourth installation cavity connected to the third installation cavity. The fifth heat exchange section 33 includes a fifth shell 331 connected to one end of the third shell 311 away from the fourth shell 321. The fifth shell 331 defines a fifth installation cavity connected to the third installation cavity. The second heat exchange unit 30 also includes a second heat exchange tube group 34 disposed in the connected fourth installation cavity, the third installation cavity and the fifth installation cavity.

[0067] In this embodiment, the fourth shell 321, the third shell 311 and the fifth shell 331 define a fourth installation cavity, a third installation cavity and a fifth installation cavity which are connected in sequence, and provide an installation space for the second heat exchange tube group 34. The heat exchange work of the second heat exchange unit 30 is realized through the second heat exchange tube group 34.

[0068] Optionally, the fourth shell 321 , the third shell 311 and the fifth shell 331 are an integrated structure to improve the integrity of the second heat exchange unit 30 and facilitate the installation of the second heat exchange tube group 34 .

[0069] Combination Figure 1 , Figure 3 and Figure 6 As shown, optionally, arc transition is adopted at the connection between the fourth shell 321 and the third shell 311 and at the connection between the third shell 311 and the fifth shell 331. When the second heat exchange unit 30 is applied to an outdoor unit, installation space is saved.

[0070] Combination Figure 7 As shown, in some embodiments, the first heat exchange tube group 23 includes one or more rows of heat exchange tubes 40. In the case where the first heat exchange tube group 23 includes multiple rows of heat exchange tubes 40, the multiple rows of heat exchange tubes 40 are arranged at intervals along the width direction of the first heat exchange unit 20. The second heat exchange tube group 34 includes one or more rows of heat exchange tubes 40. In the case where the second heat exchange tube group 34 includes multiple rows of heat exchange tubes 40, the multiple rows of heat exchange tubes 40 are arranged at intervals along the width direction of the second heat exchange unit 30.

[0071] In this embodiment, the heat exchange tube 40 is used for the circulation of the refrigerant to achieve heat exchange. When the first heat exchange tube group 23 includes multiple rows of heat exchange tubes 40, the multiple rows of heat exchange tubes 40 are arranged at intervals along the width direction of the first heat exchange unit 20 to improve the heat exchange effect of the first heat exchange unit 20. When the second heat exchange tube group 34 includes multiple rows of heat exchange tubes 40, the multiple rows of heat exchange tubes 40 are arranged at intervals along the width direction of the second heat exchange unit 30 to improve the heat exchange effect of the first heat exchange unit 20.

[0072] Combination Figure 1 , Figure 4and Figure 6 As shown, it can be understood that each row of heat exchange tubes 40 is a plurality of heat exchange tubes 40 arranged along the height direction of the heat exchanger assembly 10 .

[0073] Combination Figure 1 , Figure 4 and Figure 6 As shown, optionally, in the first heat exchange tube group 23, the number of rows of heat exchange tubes 40 is: 1 row, 1.1 rows, 1.2 rows, 1.3 rows, 1.4 rows, 1.5 rows, 1.6 rows, 1.7 rows, 1.8 rows, 1.9 rows, 2 rows, 2.1 rows, 2.2 rows, 2.3 rows, 2.4 rows, 2.5 rows, 2.6 rows, 2.7 rows, 2.8 rows, 2.9 rows or 3 rows.

[0074] Optionally, in the first heat exchange tube group 23, there are heat exchange tubes that cannot form a complete row (for example, 1.1 row, 1.2 row, 1.3 row, 1.4 row, 1.5 row, 1.6 row, 1.7 row, 1.8 row, 1.9 row, 2.1 row, 2.2 row, 2.3 row, 2.4 row, 2.5 row, 2.6 row, 2.7 row or 2.9 row), the heat exchange tubes that cannot form a complete row are arranged on the inner side of the heat exchanger assembly 10 and are arranged close to the fan of the outdoor unit to improve the heat exchange efficiency.

[0075] Exemplary, combined Figure 1 and Figure 2 As shown, the first heat exchange tube group 23 includes three rows of heat exchange tubes.

[0076] Example, combined Figure 4 and Figure 5 As shown, taking the top-outlet outdoor unit as an example, the fan is arranged above the heat exchanger assembly 10. For the convenience of description, the 2.5 rows of heat exchange tubes arranged along the width direction of the first heat exchange unit 20 are described as the first row of heat exchange tubes 231, the second row of heat exchange tubes 232, and the third row of heat exchange tubes 233. Among them, the first row of heat exchange tubes 231 and the second row of heat exchange tubes 232 are both full rows, and the third row of heat exchange tubes 233 are heat exchange tubes that cannot form a full row (hereinafter referred to as "non-full row"). Therefore, the third row of heat exchange tubes 233 is arranged on the inner side of the heat exchanger assembly 10, and is located in the upper part of the first installation cavity and the second installation cavity to be close to the fan, thereby improving the heat exchange efficiency.

[0077] Optionally, the number of rows of the heat exchange tubes 40 in the first heat exchange tube group 23 is equal to the number of complete rows+the height of the non-complete rows / the height of the complete rows.

[0078] Exemplary, combined Figure 4As shown, since the first row of heat exchange tubes 231 and the second row of heat exchange tubes 232 are both full rows, the number of full rows is 2. The height of the third row of heat exchange tubes 233 / the height of the first row of heat exchange tubes 231 is 0.5. Therefore, the number of rows of heat exchange tubes 40 in the first heat exchange tube group 23 is 2.5.

[0079] Optionally, the number of rows of heat exchange tubes 40 in the second heat exchange tube group 34 is: 1 row, 1.1 rows, 1.2 rows, 1.3 rows, 1.4 rows, 1.5 rows, 1.6 rows, 1.7 rows, 1.8 rows, 1.9 rows, 2 rows, 2.1 rows, 2.2 rows, 2.3 rows, 2.4 rows, 2.5 rows, 2.6 rows, 2.7 rows, 2.8 rows, 2.9 rows or 3 rows.

[0080] Optionally, in the second heat exchange tube group 34, when there are heat exchange tubes that cannot form a complete row (1.1 row, 1.2 row, 1.3 row, 1.4 row, 1.5 row, 1.6 row, 1.7 row, 1.8 row, 1.9 row, 2.1 row, 2.2 row, 2.3 row, 2.4 row, 2.5 row, 2.6 row, 2.7 row or 2.9 row), the heat exchange tubes that cannot form a complete row are arranged on the inner side of the heat exchanger assembly 10 and are arranged close to the fan of the outdoor unit to improve the heat exchange efficiency.

[0081] Exemplary, combined Figure 3 As shown, the first heat exchange tube group 23 and the second heat exchange tube group 34 each include three rows of heat exchange tubes 40 .

[0082] Exemplary, combined Figure 6 and Figure 7 As shown, the second heat exchange tube group 34 includes two rows of heat exchange tubes 40

[0083] It can be understood that the calculation method of the number of rows of heat exchange tubes 40 in the second heat exchange tube group 34 is the same as the calculation method of the number of rows of heat exchange tubes 40 in the first heat exchange tube group 23, and will not be repeated herein.

[0084] Combination Figure 1 and Figure 6 As shown, in some embodiments, the second heat exchange tube group 34 includes a plurality of third connection ports and a plurality of fourth connection ports. The second heat exchange unit 30 also includes a second liquid separation head 35 connected to a portion of the third connection ports, a third liquid separation head 36 connected to another portion of the third connection ports, and a second gas collection pipe 37 connected to the plurality of fourth connection ports.

[0085] In this embodiment, part of the plurality of third connection ports is connected to the second liquid distributor 35, and the other part is connected to the third liquid distributor 36, which can not only realize the connection between the second heat exchange unit 30 and the external structure (such as an electronic expansion valve, etc.), but also improve the heat exchange effect. The plurality of fourth connection ports are all connected to the second gas collecting pipe 37, so as to realize the connection between the second heat exchange unit 30 and the external structure (such as a compressor, etc.), so as to realize the circulation of the refrigerant, and then realize the heat exchange.

[0086] Exemplarily, one end of the second liquid distributor 35 away from the second heat exchange tube group 34 is connected to an electronic expansion valve, one end of the third liquid distributor 36 away from the second heat exchange tube group 34 is connected to another electronic expansion valve, and one end of the second gas collector 37 away from the second heat exchange tube group 34 is connected to the compressor. In the case of the air conditioner operating in the heating mode, the refrigerant after throttling by an electronic expansion valve enters the second liquid distributor 35, and after flowing out of the second liquid distributor 35, the refrigerant enters the second heat exchange tube group 34 through a part of the third connection port for heat exchange. The refrigerant after throttling by another electronic expansion valve enters the third liquid distributor 36, and after flowing out of the third liquid distributor 36, the refrigerant enters the second heat exchange tube group 34 through another part of the third connection port for heat exchange. The refrigerant after heat exchange in the second heat exchange tube group 34 flows out to the second gas collector 37 through multiple fourth connection ports, and the refrigerant flows out through the second gas collector 37 and can enter the compressor.

[0087] In this example, two electronic expansion valves are connected respectively through the second liquid distributor 35 and the third liquid distributor 36, which helps to control the heat exchange according to the use requirements of the multi-split unit. When the air conditioner is in heating mode, the refrigerant is transported to the second heat exchange tube group 34 through the second liquid distributor 35 and the third liquid distributor 36, which helps to improve the control of the refrigerant heat exchange temperature difference.

[0088] It can be understood that the connection between the multiple heat exchange tubes 40 in the first heat exchange tube group 23 adopts the existing technology. The connection between the multiple heat exchange tubes 40 in the second heat exchange tube group 34 adopts the existing technology.

[0089] In some embodiments, the length of the first heat exchange unit 20 is less than 3000 mm, which can improve the evaporation effect of the refrigerant in the heat exchange tube 40 .

[0090] In some embodiments, the length of the second heat exchange unit 30 is less than 3000 mm, which can improve the evaporation effect of the refrigerant in the heat exchange tube 40 .

[0091] In some embodiments, the length of the first heat exchange unit 20 is less than 3000 mm. The length of the second heat exchange unit 30 is less than 3000 mm, which can improve the evaporation effect of the refrigerant in the single heat exchange tube 40 to improve the heat exchange efficiency of the heat exchanger.

[0092] Optionally, the length of the first heat exchange unit 20 ranges from 1300 to 1600 mm, which can improve the evaporation effect of the refrigerant in the heat exchange tube 40 to improve the heat exchange efficiency of the heat exchanger.

[0093] Optionally, the length of the second heat exchange unit 30 ranges from 2200 to 2600 mm, which can improve the evaporation effect of the refrigerant in the heat exchange tube 40 to improve the heat exchange efficiency of the heat exchanger.

[0094] Optionally, the height of the first heat exchange unit 20 ranges from 1100 to 1250 mm, which cooperates with the length of the first heat exchange unit 20 to further improve the heat exchange efficiency of the heat exchanger.

[0095] Optionally, the height of the second heat exchange unit 30 ranges from 1100 to 1250 mm, which cooperates with the length of the second heat exchange unit 30 to further improve the heat exchange efficiency of the heat exchanger.

[0096] Combination Figure 3 As shown, in some embodiments, Figure 3 Where a represents the length of the first heat exchange section 21. The length (a) of the first heat exchange section 21 ranges from 600 to 800 mm, shortening the length of the heat exchange tube 40 in the first heat exchange section 21 and improving the heat exchange efficiency.

[0097] Combination Figure 3 As shown, in some embodiments, Figure 3 b represents the length of the second heat exchange section 22. The length (b) of the second heat exchange section 22 ranges from 600 to 900 mm, which shortens the length of the heat exchange tube 40 in the second heat exchange section 22 and improves the heat exchange efficiency.

[0098] Combination Figure 3 As shown, in some embodiments, Figure 3 c represents the length of the third heat exchange section 31. The length (c) of the third heat exchange section 31 is 700 to 900 mm, which shortens the length of the heat exchange tube 40 in the third heat exchange section 31 and improves the heat exchange efficiency.

[0099] Combination Figure 3 As shown, in some embodiments, Figure 3 d represents the length of the third heat exchange section 31. The length (d) of the fourth heat exchange section 32 is 700 to 900 mm, and the length of the heat exchange tube 40 in the fourth heat exchange section 32 is shortened to improve the heat exchange efficiency.

[0100] Combination Figure 3 As shown, in some embodiments, Figure 3 e represents the length of the third heat exchange section 31. The length (e) of the fifth heat exchange section 33 is 650 to 850 mm, and the length of the heat exchange tube 40 in the fifth heat exchange section 33 is shortened to improve the heat exchange efficiency.

[0101] Combination Figure 3 As shown, in some embodiments, the length (a) of the first heat exchange section 21 is 600 to 800 mm, and the length (b) of the second heat exchange section 22 is 600 to 900 mm, so that the length of the first heat exchange unit 20 is less than 3000 mm, shortening the length of a single heat exchange tube 40 in the first heat exchange unit 20 and improving the heat exchange efficiency.

[0102] Combination Figure 3 As shown, in some embodiments, the length (c) of the third heat exchange section 31 is 700 to 900 mm, the length (d) of the fourth heat exchange section 32 is 700 to 900 mm, and the length (e) of the fifth heat exchange section 33 is 650 to 850 mm, so that the length of the second heat exchange unit 30 is less than 3000 mm, shortening the length of a single heat exchange tube 40 in the second heat exchange unit 30 and improving the heat exchange efficiency.

[0103] Combination Figure 3 As shown, optionally, the heat exchanger assembly 10 further includes a plurality of heat exchanger plates 11. The plurality of heat exchanger plates 11 are arranged in the first installation cavity, the second installation cavity, the third installation cavity, the fourth installation cavity and the fifth installation cavity. The first heat exchange tube group 23 is arranged through the heat exchanger plates 11 located in the first installation cavity and the second installation cavity. The second heat exchange tube group 34 is arranged through the heat exchanger plates 11 located in the third installation cavity, the fourth installation cavity and the fifth installation cavity.

[0104] In this embodiment, the heat exchange effect is improved by using a plurality of heat exchanger plates 11 .

[0105] Optionally, the distance between two adjacent heat exchanger plates 11 is 1.3 to 1.6 mm.

[0106] It is understandable that the type of the heat exchanger plate 11 is not limited. For example, the heat exchanger plate 11 is a cracked plate, a corrugated plate, etc.

[0107] The embodiment of the present disclosure further provides an outdoor unit, which includes a heat exchanger assembly 10 as described in any of the above embodiments.

[0108] In this embodiment, the outdoor unit includes a heat exchanger assembly 10 as in any of the previous embodiments, thereby improving heat exchange efficiency.

[0109] Optionally, the outdoor unit includes but is not limited to a top-outlet outdoor unit.

[0110] The embodiment of the present disclosure also provides an air conditioner, which includes an indoor unit and the outdoor unit as described above.

[0111] In this embodiment, the air conditioner includes the aforementioned outdoor unit, and the outdoor unit has a heat exchanger assembly 10 as in any of the previous embodiments, thereby improving the heat exchange efficiency.

[0112] It can be understood that the heat exchanger assembly of the present application is also applicable to the indoor unit. The size of the heat exchanger assembly can be set according to the actual needs of the indoor unit.

[0113] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat exchanger assembly, characterized in that: include: A first heat exchange unit comprises a first heat exchange section and a second heat exchange section arranged at one end of the first heat exchange section, wherein the second heat exchange section extends toward one side of the first heat exchange section; The second heat exchange unit comprises a third heat exchange section spaced apart from the first heat exchange section, and a fourth heat exchange section and a fifth heat exchange section respectively connected to both ends of the third heat exchange section, wherein the fourth heat exchange section and the fifth heat exchange section both extend toward the same side of the third heat exchange section; Wherein, the fourth heat exchange section is arranged opposite to the second heat exchange section.

2. The heat exchanger assembly according to claim 1, characterized in that: The first heat exchange section comprises: A first housing defines a first mounting cavity; The second heat exchange section includes a second shell connected to one end of the first shell, and the second shell defines a second installation cavity communicating with the first installation cavity; The first heat exchange unit also includes a first heat exchange tube group arranged in the first installation cavity and the second installation cavity.

3. The heat exchanger assembly according to claim 2, characterized in that: The first heat exchange unit further includes: The first dispensing head; First gas collecting pipe; The first heat exchange tube group includes a plurality of first connection ports each connected to the first liquid separation head and a plurality of second connection ports each connected to the first gas collecting pipe.

4. The heat exchanger assembly according to claim 2, characterized in that: The third heat exchange section comprises: A third housing defines a third mounting cavity; The fourth heat exchange section includes a fourth shell connected to one end of the third shell, and the fourth shell defines a fourth installation cavity communicating with the third installation cavity; The fifth heat exchange section includes a fifth shell connected to an end of the third shell away from the fourth shell, and the fifth shell defines a fifth installation cavity communicated with the third installation cavity; The second heat exchange unit also includes a second heat exchange tube group arranged in the connected fourth installation cavity, the third installation cavity and the fifth installation cavity.

5. The heat exchanger assembly according to claim 4, characterized in that: The first heat exchange tube group comprises: one or more rows of heat exchange tubes; In the case where the first heat exchange tube group includes a plurality of rows of heat exchange tubes, the plurality of rows of heat exchange tubes are arranged at intervals along the width direction of the first heat exchange unit; The second heat exchange tube group includes one or more rows of heat exchange tubes; When the second heat exchange tube group includes a plurality of rows of heat exchange tubes, the plurality of rows of heat exchange tubes are spaced apart along a width direction of the second heat exchange unit.

6. The heat exchanger assembly according to claim 4, characterized in that: The second heat exchange tube group comprises: A plurality of third connection ports; a plurality of fourth connection ports; The second heat exchange unit further includes a second liquid separation head connected to a portion of the third connection ports, a third liquid separation head connected to another portion of the third connection ports, and a second gas collection pipe connected to a plurality of fourth connection ports.

7. The heat exchanger assembly according to any one of claims 1 to 6, characterized in that: The length of the first heat exchange unit is less than 3000 mm; and / or The length of the second heat exchange unit is less than 3000 mm.

8. The heat exchanger assembly according to any one of claims 1 to 6, characterized in that: The length of the first heat exchange section ranges from 600 to 800 mm; The length of the second heat exchange section ranges from 600 to 900 mm; The length of the third heat exchange section ranges from 700 to 900 mm; The length of the fourth heat exchange section ranges from 700 to 900 mm; and / or The length of the fifth heat exchange section ranges from 650 to 850 mm.

9. An outdoor unit, characterized in that: include: A heat exchanger assembly as claimed in any one of claims 1 to 8.

10. An air conditioner, characterized in that: include: Indoor unit; The outdoor unit as claimed in claim 9.

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