Outdoor unit chassis layout structure and outdoor unit

Abstract

The utility model discloses an outdoor unit chassis layout structure and an outdoor unit. The outdoor unit chassis layout structure comprises a chassis, a compressor module, a double-pipe heat exchanger module and an indoor side heat exchanger module, wherein the compressor module, the double-pipe heat exchanger module and the indoor side heat exchanger module are installed on the chassis. The chassis is provided with a first installation area, and a second installation area and a third installation area which are respectively located on two opposite sides of the first installation area. The compressor module is located in the first installation area, the double-pipe heat exchanger module is located in the second installation area, and the indoor side heat exchanger module is located in the third installation area. According to the weight difference of the compressor module, the indoor side heat exchanger module and the double-pipe heat exchanger module, arrangement is carried out in the three installation areas at different positions of the chassis, the weight of the outdoor unit can be balanced, and damage caused by unbalanced weight in the transportation or installation process of the outdoor unit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air source heat pumps, in particular to an outdoor unit chassis layout structure and an outdoor unit. Background Art

[0002] With the continuous advancement of science and technology, people have higher and higher requirements for living environment. Air source heat pumps are favored by more and more manufacturers and users because they can solve the energy crisis to a certain extent. The main unit layout of air source heat pumps in the existing technology may cause damage to the unit due to weight imbalance during transportation or installation. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an outdoor unit chassis layout structure which is beneficial to balancing weight and an outdoor unit having the chassis layout structure.

[0004] The utility model solves the technical problem by adopting a technical solution: providing an outdoor unit chassis layout structure, the outdoor unit chassis layout structure comprising a chassis, a compressor module installed on the chassis, a shell and tube heat exchanger module and an indoor side heat exchanger module;

[0005] The chassis is provided with a first installation area, a second installation area and a third installation area respectively located on opposite sides of the first installation area; the compressor module is located in the first installation area, the shell and tube heat exchanger module is located in the second installation area, and the indoor heat exchanger module is located in the third installation area.

[0006] In some embodiments, the compressor module includes a compressor and a gas-liquid separator; the outlet of the gas-liquid separator is connected to the inlet of the compressor; the outdoor unit chassis layout structure also includes a liquid storage tank, and the liquid storage tank is arranged in the first installation area or the second installation area;

[0007] In the first installation area, the gas-liquid separator and the liquid storage tank are arranged adjacent to each other, and the gas-liquid separator and the liquid storage tank are located on the same side of the compressor.

[0008] In some embodiments, the shell and tube heat exchanger module includes a shell and tube heat exchanger, and the indoor heat exchanger module includes an indoor heat exchanger;

[0009] The shell and tube heat exchanger includes a refrigerant inlet and a refrigerant outlet connected to the refrigerant inlet; the refrigerant inlet is connected to the outlet of the compressor, the refrigerant outlet is connected to the liquid storage tank, and the refrigerant outlet can be connected to the indoor heat exchanger through a pipeline.

[0010] In some embodiments, the shell and tube heat exchanger module further includes a first water pump;

[0011] The shell and tube heat exchanger also includes a water inlet and a water outlet, and the first water pump is connected to the water inlet or the water outlet.

[0012] In some embodiments, the indoor heat exchanger module also includes a second water pump and an expansion tank; the second water pump and the expansion tank are connected to the return water end of the indoor heat exchanger; in the third installation area, the second water pump and the expansion tank are located on the same side of the indoor heat exchanger, and the second water pump is located above the expansion tank.

[0013] In some embodiments, the expansion tank is disposed horizontally in the third installation area.

[0014] In some embodiments, the outdoor unit chassis layout structure further includes a control module mounted on the chassis and electrically connected to the compressor module, the indoor heat exchanger module and the shell and tube heat exchanger module respectively;

[0015] The chassis is further provided with a fourth installation area located on a side of the third installation area away from the first installation area; the control module is located in the fourth installation area.

[0016] The utility model also provides an outdoor unit, comprising a housing, a compressor module, an indoor heat exchanger module and a shell and tube heat exchanger module;

[0017] The housing includes a chassis, and the compressor module, the indoor heat exchanger module and the shell and tube heat exchanger module are installed on the chassis to form the outdoor unit chassis layout structure described in any one of the above items.

[0018] In some embodiments, the housing further comprises a shell, and the shell is enclosed on the chassis; the outdoor unit further comprises a water tank, an outdoor heat exchanger module, a partition and a water receiving tray installed in the shell;

[0019] The water tank is vertically arranged in the shell and located above the shell-and-tube heat exchanger module. The outdoor heat exchanger module is arranged above the compressor module and the indoor heat exchanger module through the water receiving pan. The partition is arranged between the water tank and the outdoor heat exchanger module.

[0020] In some embodiments, the outdoor heat exchanger module includes an L-shaped outdoor heat exchanger;

[0021] The long side of the outdoor heat exchanger corresponds to above the first installation area, the third installation area and the fourth installation area of ​​the chassis, and the short side of the outdoor heat exchanger corresponds to above the side of the fourth installation area away from the third installation area.

[0022] The beneficial effects of the present invention are as follows: according to the weight difference between the compressor module, the indoor heat exchanger module and the shell and tube heat exchanger module, the compressor module is arranged in the installation area in the middle of the outdoor unit chassis, and the indoor heat exchanger module and the shell and tube heat exchanger module are respectively arranged in the installation areas on the opposite sides of the compressor module, which is beneficial to balancing the weight of the outdoor unit and reducing the damage that may be caused to the outdoor unit due to weight imbalance during transportation or installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 This is a schematic diagram of the appearance structure of an outdoor unit of an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 The schematic diagram of the structure of the outdoor unit after removing the casing is shown;

[0026] Figure 3 yes Figure 2 A top view of the chassis layout of the outdoor unit is shown;

[0027] Figure 4 yes Figure 3 A three-dimensional structural diagram of the chassis layout of the outdoor unit is shown;

[0028] Figure 5 It is a logical connection diagram of an outdoor unit according to an embodiment of the utility model. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0030] like Figures 1 to 3 As shown, the outdoor unit 100 of one embodiment of the utility model may include a shell, a compressor module 10 installed in the shell, a liquid storage tank 20, a shell and tube heat exchanger module 30 and an indoor heat exchanger module 40, and may also include a water tank 50 installed in the shell and an outdoor heat exchanger module 60.

[0031] The housing may further include a chassis 110 and a shell 120, one end of the shell 120 is open, and the shell 120 is connected to the chassis 110 with its open end, and is connected with the chassis 110 to form the housing of the outdoor unit 100. In addition, the connection between the shell 120 and the chassis 110 defines a space between the chassis 110 and the shell 120, and also forms an inner cavity of the housing for accommodating the compressor module 10, the liquid storage tank 20, the indoor heat exchanger module 40, and the shell-and-tube heat exchanger module 30.

[0032] In the shell, the compressor module 10, the liquid storage tank 20, the indoor heat exchanger module 40 and the shell and tube heat exchanger module 30 are installed on the chassis 110, and the water tank 50 and the outdoor heat exchanger module 60 are located above the compressor module 10, the liquid storage tank 20, the indoor heat exchanger module 40 and the shell and tube heat exchanger module 30 in the shell.

[0033] like Figure 3 and Figure 4 As shown, in order to install the compressor module 10, the liquid storage tank 20, the indoor heat exchanger module 40 and the shell and tube heat exchanger module 30 and other modules, the chassis 110 is provided with a first installation area 111, a second installation area 112 and a third installation area 113. Among them, the first installation area 111 is close to or located in the middle position of the chassis 110, and the second installation area 112 and the third installation area 113 are respectively located on opposite sides of the first installation area 111.

[0034] In some embodiments, Figure 3 The bottom plate 110 shown is a rectangular plate, and the second installation area 112, the first installation area 111 and the third installation area 113 are arranged along the length direction of the rectangular plate.

[0035] The compressor module 10 and the liquid storage tank 20 are installed in the first installation area 111 of the chassis 110, the shell and tube heat exchanger module 30 is installed in the second installation area 112 of the chassis 110, and the indoor heat exchanger module 40 is installed in the third installation area 113 of the chassis. The above modules are integrated in the housing, and the arrangement of different installation areas on the chassis 110 forms an outdoor unit chassis layout structure that is conducive to balancing the weight of the outdoor unit, avoiding the problem of weight imbalance caused by the concentration of heavy equipment in one place on the chassis.

[0036] It is understandable that in other embodiments, the liquid storage tank 20 may not be provided; or the liquid storage tank 20 may be arranged in the second installation area 112 .

[0037] Specifically, the compressor module 10 may include a compressor 11 and a gas-liquid separator 12. In the first installation area 111 of the chassis 110, the compressor 11 is located at one end of the first installation area 111, and the gas-liquid separator 12 and the liquid storage tank 20 are located at the other end of the first installation area 111. In addition, the gas-liquid separator 12 and the liquid storage tank 20 are arranged adjacent to each other and are also located on the same side of the compressor 11.

[0038] Furthermore, in an embodiment where the chassis 110 is a rectangular plate, the compressor 11 and the gas-liquid separator 12 are arranged along the width direction of the chassis 110. In other words, the compressor 11 and the gas-liquid separator 12 are respectively close to the two long sides of the chassis 110 in the first installation area 111, and the liquid storage tank 20 is adjacent to the gas-liquid separator 12 and also close to the long sides of the chassis 110.

[0039] The shell and tube heat exchanger module 30 may include a shell and tube heat exchanger 31 and a first water pump 32 which are adjacently arranged and installed on the second installation area 112. In the embodiment where the bottom plate 110 is a rectangular plate, the shell and tube heat exchanger 31 and the first water pump 32 are respectively close to two long sides of the bottom plate 110, and are also close to one short side of the bottom plate 110.

[0040] In some embodiments, the shell and tube heat exchanger 31 is arranged adjacent to the gas-liquid separator 12 on the bottom plate 110 .

[0041] The indoor heat exchanger module 40 may include an indoor heat exchanger 41, a second water pump 42 and an expansion tank 43. The second water pump 42 and the expansion tank 43 are connected to the return water end of the indoor heat exchanger 41, and as the hydraulic module part of the outdoor unit 100, there is no need to equip the hydraulic module and other equipment. The indoor heat exchanger 41 is close to one long side of the chassis 110 in the third installation area 113, and the expansion tank 43 can lie on the third installation area 113 and close to the other long side of the chassis 110. The second water pump 42 can be installed in the third installation area 113 by a bracket and supported above the expansion tank 43.

[0042] The outdoor unit 100 may further include a control module 200. In this regard, a fourth installation area 114 is further provided on the chassis 110, and the fourth installation area 114 is located on a side of the third installation area 113 away from the first installation area 111, and the control module 200 is installed in the fourth installation area 114. The installation of the control module 200 in the fourth installation area 114 of the chassis 110 also forms a part of the chassis layout structure of the outdoor unit.

[0043] The control module 200 is electrically connected to the compressor module 10, the indoor heat exchanger module 40 and the shell and tube heat exchanger module 30 respectively to control the start and stop of each module and the operation mode of the unit. The control module 200 may further include an electric control box, a main control board installed in the electric control box, relays, reactance and other electrical components.

[0044] Another example Figure 2 and Figure 3 As shown, in the housing, the water tank 50 is in the shell 120, fixedly supported on the chassis 110 by supporting feet and other parts, and is located above the second installation area 112 of the chassis 110, that is, also above the shell and tube heat exchanger module 30, avoiding interference with the shell and tube heat exchanger module 30. The outer surface of the water tank 50 is wrapped with thermal insulation cotton to keep the water tank 50 warm.

[0045] The outdoor heat exchanger module 60 is positioned in the housing 120 above the first installation area 111 and the third installation area 113 , that is, also above the compressor module 10 , the liquid storage tank 20 and the indoor heat exchanger module 40 .

[0046] Further, the outdoor unit 100 may further include a partition 130 and a water receiving pan 140. In the housing, the water receiving pan 140 is disposed below the outdoor heat exchanger module 60, and the outdoor heat exchanger module 60 is disposed above the compressor module 10 and the indoor heat exchanger module 40 through the water receiving pan 140. The partition 130 is disposed between the water tank 50 and the outdoor heat exchanger module 60.

[0047] In some embodiments, the side of the partition 130 facing the bottom plate 110 can be connected to the water receiving tray 140, and the two are connected to form an L-shaped partition, and the inner cavity of the shell can also be divided into a rectangular cavity and an L-shaped cavity. The outdoor heat exchanger module 60 is located in the rectangular cavity, the water tank 50 is located in the long side portion of the L-shaped cavity, and the first installation area 111 to the fourth installation area 114 on the bottom plate are located in the short side portion of the L-shaped cavity.

[0048] The outdoor heat exchanger module 60 may further include an outdoor heat exchanger 61. Figure 2 In the illustrated embodiment, the outdoor heat exchanger 61 is L-shaped, the long side of the outdoor heat exchanger 61 corresponds to above the first installation area 111, the third installation area 113 and the fourth installation area 114 of the chassis 110, and the short side of the outdoor heat exchanger 61 corresponds to above the side of the fourth installation area 114 away from the third installation area 113.

[0049] The outdoor heat exchanger module 60 may further include a fan 62. The fan 62 is arranged in the rectangular cavity and located on one side of the outdoor heat exchanger 61. When heating, the fan 62 draws the outside air into the housing to exchange heat with the outdoor heat exchanger 61, so that the refrigerant inside the outdoor heat exchanger 61 absorbs the heat of the outside air; when cooling, the fan 62 blows the heat of the refrigerant released by the outdoor heat exchanger 61 into the outside air.

[0050] The outdoor heat exchanger 61 may be, but is not limited to, a finned heat exchanger.

[0051] Furthermore, in the outdoor unit 100, the compressor 11 is used to compress the refrigerant, and the refrigerant circulates in different refrigerant circulation loops formed by connecting the shell and tube heat exchanger 31, the indoor heat exchanger 41, and the outdoor heat exchanger 61. The outlet of the gas-liquid separator 12 is connected to the inlet of the compressor 11, and the inlet of the gas-liquid separator 12 is connected to each refrigerant circulation loop to receive the refrigerant refluxed from each refrigerant circulation loop, and the refrigerant enters the compressor 11 through the gas-liquid separator 12.

[0052] The liquid storage tank 20 is arranged in the refrigerant circulation loop, receiving and storing liquid refrigerant from the shell and tube heat exchanger 31, the indoor heat exchanger 41 or the outdoor heat exchanger 61. The liquid refrigerant in the liquid storage tank 20 then flows to the indoor heat exchanger 31 or the outdoor heat exchanger 61 and absorbs heat through the evaporation of the liquid refrigerant.

[0053] Combination Figures 1 to 5 The shell and tube heat exchanger 31 includes a refrigerant inlet and a refrigerant outlet connected to the refrigerant inlet. The refrigerant delivered by the compressor 11 enters the shell and tube heat exchanger 31 through the refrigerant inlet, exchanges heat with the water therein, and is output through the refrigerant outlet. In addition, the refrigerant outlet of the shell and tube heat exchanger 31 is connected to the liquid storage tank 20, and the refrigerant outlet of the shell and tube heat exchanger 31 can also be connected to the indoor heat exchanger 41 or the outdoor heat exchanger 61 through a pipeline to form a corresponding loop. The shell and tube heat exchanger 31 also includes a water inlet and a water outlet connected to the water inlet, and the water inlet and the water outlet are connected to the water tank 50. The water in the water tank 50 enters the shell and tube heat exchanger 31 through the water inlet, exchanges heat with the refrigerant in the shell and tube heat exchanger 31, and then returns to the water tank 50 through the water outlet.

[0054] The first water pump 32 of the shell and tube heat exchanger module 30 can be set on the connecting pipeline between the shell and tube heat exchanger 31 and the water tank 50, connected to the water inlet or outlet of the shell and tube heat exchanger 31, and provide power to drive water to circulate between the water tank 50 and the shell and tube heat exchanger 31.

[0055] The outdoor unit 100 may further include a first three-way valve 70, a second three-way valve 80 and a four-way valve 90, which are used to connect the compressor 11, the shell and tube heat exchanger 31, the indoor heat exchanger 41, the outdoor heat exchanger 61, etc., to form different refrigerant circulation loops. Figure 5 As shown, the first three-way valve 70 includes a first valve port 71, a second valve port 72 and a third valve port 73, the second three-way valve 80 includes a fourth valve port 81, a fifth valve port 82 and a sixth valve port 83; the four-way valve 90 includes a seventh valve port 91, an eighth valve port 92, a ninth valve port 93 and a tenth valve port 94.

[0056] exist Figure 5 In the illustrated embodiment, the first valve port 71 of the first three-way valve 70 is connected to the outlet of the compressor 11, the second valve port 72 is connected to the refrigerant inlet of the shell and tube heat exchanger 31, and the third valve port 73 is connected to the seventh valve port 91 of the four-way valve 90. The fourth valve port 81 of the second three-way valve 80 is connected to the seventh valve port 91, the fifth valve port 82 is connected to the refrigerant outlet of the shell and tube heat exchanger 31, and the sixth valve port 83 is connected to the liquid storage tank 20. The eighth valve port 92 of the four-way valve 90 is connected to the indoor heat exchanger 41, the ninth valve port 93 is connected to the inlet of the gas-liquid separator 12, and the tenth valve port 94 is connected to the outdoor heat exchanger 61.

[0057] The outdoor unit 100 may further include a first expansion valve group and a second expansion valve group, wherein the first expansion valve group is connected to a pipeline between the liquid storage tank 20 and the indoor heat exchanger 41, and the second expansion valve group is connected to a pipeline between the liquid storage tank 20 and the outdoor heat exchanger 61. The first expansion valve group includes a first expansion valve 150, and the second expansion valve group includes a second expansion valve 160.

[0058] In combination with the above valves to realize the connected refrigerant circulation circuit, the outdoor unit of the utility model has multiple operating modes, including refrigeration + full heat recovery mode, refrigeration + partial heat recovery mode, heating + domestic hot water mode, pure hot water mode, heating mode alone and cooling mode alone.

[0059] In the cooling + domestic hot water mode, the full heat recovery method can be used at the beginning. The first valve port 71 and the second valve port 72 of the first three-way valve 70 are connected, and the fifth valve port 82 and the sixth valve port 83 of the second three-way valve 80 are connected. The high-temperature refrigerant from the compressor 11 enters the shell and tube heat exchanger 31. All the heat of the high-temperature refrigerant is heat-exchanged with the domestic hot water in the shell and tube heat exchanger 31, so that when cooling in summer, the condensation heat originally used for heat exchange with the air is all used to prepare hot water, and the outdoor heat exchanger 61 does not need to start heat dissipation. That is, the refrigerant undergoes a phase change at the shell and tube heat exchanger 31, condensing from gas to liquid, releasing latent heat, and directly enters the liquid storage tank 20, and then passes through the first expansion valve 150 to the indoor heat exchanger 41 for evaporation, absorbing indoor heat to achieve the cooling effect, and finally the refrigerant returns to the compressor 11 for a new cycle.

[0060] When the domestic hot water reaches a certain temperature, it can be switched to the refrigeration + partial heat recovery mode. In this mode, the first valve port 71 and the second valve port 72 of the first three-way valve 70 are connected, and the fourth valve port 81 and the fifth valve port 82 of the second three-way valve 80 are connected. The high-temperature refrigerant from the compressor 11 enters the shell and tube heat exchanger 31, and a part of the heat of the high-temperature refrigerant is heat-exchanged with the domestic hot water in the shell and tube heat exchanger 31, and the other part of the heat is released through the outdoor heat exchanger 61. That is, the refrigerant releases sensible heat at the shell and tube heat exchanger 31, and then passes through the four-way valve 90, the outdoor heat exchanger 61, the liquid storage tank 20, and the first expansion valve 150 in sequence to reach the indoor heat exchanger 41 for evaporation, absorbs indoor heat to achieve a refrigeration effect, and finally the refrigerant returns to the compressor 11 for a new cycle.

[0061] In the heating + domestic hot water mode, the first valve port 71 and the second valve port 72 of the first three-way valve 70 are connected, and the fourth valve port 81 and the fifth valve port 82 of the second three-way valve 80 are connected, and the high-temperature refrigerant from the compressor 11 enters the shell and tube heat exchanger 31. Part of the heat of the high-temperature refrigerant is exchanged at the shell and tube heat exchanger 31, and the other part of the heat is released through the indoor heat exchanger 41 to achieve the indoor heating effect. Then the refrigerant passes through the liquid storage tank 20 and the second expansion valve 160 in turn to reach the outdoor heat exchanger 61 for evaporation, absorbs the heat of the outdoor air, and finally returns to the compressor 11 for a new cycle.

[0062] In pure hot water mode, such as in transitional seasons or other special times when the water heater heat pump operates in pure hot water mode, the first valve port 71 and the second valve port 72 of the first three-way valve 70 are connected, and the fifth valve port 82 and the sixth valve port 83 of the second three-way valve 80 are connected, and the high-temperature refrigerant from the compressor 11 enters the shell and tube heat exchanger 31. All the heat of the high-temperature refrigerant is exchanged at the shell and tube heat exchanger 31 to produce hot water, and then passes through the liquid storage tank 20 and the second expansion valve 160 in turn to reach the outdoor heat exchanger 61 for evaporation, absorbs the heat of the outdoor air, and finally returns to the compressor 11 for a new cycle.

[0063] In the single heating mode, the first valve port 71 and the third valve port 73 of the first three-way valve 70 are connected, and the fifth valve port 82 and the sixth valve port 83 of the second three-way valve 80 are connected. After the high-temperature refrigerant comes out of the compressor 11, it passes through the first three-way valve 70 and the four-way valve 90 in sequence and then directly reaches the indoor heat exchanger 41 to release heat, thereby achieving the indoor heating effect. Then the refrigerant passes through the liquid storage tank 20 and the second expansion valve 160 in sequence to reach the outdoor heat exchanger 61 for evaporation, absorbs the heat of the outdoor air, and finally returns to the compressor 11 for a new cycle.

[0064] In the single cooling mode, the first valve port 71 and the third valve port 73 of the first three-way valve 70 are connected, and the fifth valve port 82 and the sixth valve port 83 of the second three-way valve 80 are connected. After the high-temperature refrigerant comes out of the compressor 11, it passes through the first three-way valve 70 and the four-way valve 90 in sequence and then directly reaches the outdoor heat exchanger 61 to release heat. Then, it passes through the four-way valve 90, the outdoor heat exchanger 61, the liquid storage tank 20, and the first expansion valve 150 in sequence to reach the indoor heat exchanger 41 for evaporation, absorbs indoor heat to achieve a cooling effect, and finally the refrigerant returns to the compressor 11 for a new cycle.

[0065] In summary, the outdoor unit of the utility model integrates the compressor module, liquid storage tank, indoor heat exchanger module, outdoor heat exchanger module, water tank, etc. into the shell of the outdoor unit, and arranges them reasonably in the shell to reduce the length of the connecting pipes between the modules and other equipment. The entire outdoor unit can complete heating, cooling, and preparation of domestic hot water. It has a high degree of integration, reduces the complexity of installing multiple devices during the engineering installation process, and improves the user experience.

[0066] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An outdoor unit chassis layout structure, characterized in that: The outdoor unit chassis layout structure includes a chassis, a compressor module installed on the chassis, a shell and tube heat exchanger module, and an indoor side heat exchanger module; The chassis is provided with a first installation area, a second installation area and a third installation area respectively located on opposite sides of the first installation area; the compressor module is located in the first installation area, the shell and tube heat exchanger module is located in the second installation area, and the indoor heat exchanger module is located in the third installation area.

2. The outdoor unit chassis layout structure according to claim 1, characterized in that: The compressor module includes a compressor and a gas-liquid separator; the outlet of the gas-liquid separator is connected to the inlet of the compressor; the outdoor unit chassis layout structure also includes a liquid storage tank, and the liquid storage tank is arranged in the first installation area or the second installation area; In the first installation area, the gas-liquid separator and the liquid storage tank are arranged adjacent to each other, and the gas-liquid separator and the liquid storage tank are located on the same side of the compressor.

3. The outdoor unit chassis layout structure according to claim 2, characterized in that: The shell and tube heat exchanger module includes a shell and tube heat exchanger, and the indoor heat exchanger module includes an indoor heat exchanger; The shell and tube heat exchanger includes a refrigerant inlet and a refrigerant outlet connected to the refrigerant inlet; the refrigerant inlet is connected to the outlet of the compressor, the refrigerant outlet is connected to the liquid storage tank, and the refrigerant outlet can be connected to the indoor heat exchanger through a pipeline.

4. The outdoor unit chassis layout structure according to claim 3, characterized in that: The shell and tube heat exchanger module also includes a first water pump; The shell and tube heat exchanger also includes a water inlet and a water outlet, and the first water pump is connected to the water inlet or the water outlet.

5. The outdoor unit chassis layout structure according to claim 3, characterized in that: The indoor heat exchanger module also includes a second water pump and an expansion tank; the second water pump and the expansion tank are connected to the return water end of the indoor heat exchanger; in the third installation area, the second water pump and the expansion tank are located on the same side of the indoor heat exchanger, and the second water pump is located above the expansion tank.

6. The outdoor unit chassis layout structure according to claim 5, characterized in that: The expansion tank is disposed horizontally in the third installation area.

7. The outdoor unit chassis layout structure according to any one of claims 1 to 6, characterized in that: The outdoor unit chassis layout structure also includes a control module installed on the chassis and electrically connected to the compressor module, the indoor heat exchanger module and the shell and tube heat exchanger module respectively; The chassis is further provided with a fourth installation area located on a side of the third installation area away from the first installation area; the control module is located in the fourth installation area.

8. An outdoor unit, characterized in that: It includes a shell, a compressor module, an indoor heat exchanger module and a shell and tube heat exchanger module; The housing includes a chassis, and the compressor module, the indoor heat exchanger module and the shell and tube heat exchanger module are installed on the chassis to form the outdoor unit chassis layout structure according to any one of claims 1 to 7.

9. The outdoor unit according to claim 8, characterized in that: The housing further comprises a shell, and the shell is enclosed on the chassis; the outdoor unit further comprises a water tank, an outdoor heat exchanger module, a partition and a water receiving tray installed in the shell; The water tank is vertically arranged in the shell and located above the shell-and-tube heat exchanger module. The outdoor heat exchanger module is arranged above the compressor module and the indoor heat exchanger module through the water receiving pan. The partition is arranged between the water tank and the outdoor heat exchanger module.

10. The outdoor unit according to claim 9, characterized in that: The outdoor heat exchanger module includes an L-shaped outdoor heat exchanger; The long side of the outdoor heat exchanger corresponds to above the first installation area, the third installation area and the fourth installation area of ​​the chassis, and the short side of the outdoor heat exchanger corresponds to above the side of the fourth installation area away from the third installation area.

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