Direct expansion unit

Abstract

The utility model discloses a direct expansion unit, relates to the technical field of air conditioners, and aims to solve the problem that parts are damaged due to the fact that vibration of a fan is transmitted to other parts. The direct expansion unit comprises a shell and a first partition plate, an air outlet channel is formed in the shell, at least part of the first partition plate is arranged in the shell, an outlet is formed in the first partition plate, and the outlet is located in the air outlet channel. The direct expansion unit further comprises a fan and a first heat exchanger, the fan is arranged on the first partition plate, located at the outlet and used for enabling airflow to flow along the air outlet channel, and at least part of the first heat exchanger is arranged in the air outlet channel and connected with the first partition plate. The direct expansion unit further comprises a shock insulation layer arranged between the first heat exchanger and the first partition plate, or the shock insulation layer is arranged between the first partition plate and the fan.

Description

Technical Field

[0001] The present application relates to the field of air conditioning technology, and in particular to a direct expansion unit. Background Art

[0002] As people's requirements for living and working environment continue to increase, air conditioners, as important equipment for regulating indoor environment, air conditioning technology is constantly developing and innovating.

[0003] As a form of air conditioning, a direct expansion unit features its own compressor. Liquid refrigerant evaporates directly in the evaporator (i.e., direct expansion), absorbing heat from the air and cooling it. This direct expansion cooling method offers high heat exchange efficiency, eliminates the need for cooling water or a cooling water system, and is easy to install.

[0004] A direct expansion unit usually has a fan for making air flow in the direct expansion unit. However, the fan generates vibration during operation, and the vibration of the fan can be transmitted to other components and cause damage to the components. Utility Model Content

[0005] The purpose of the present application is to provide a direct expansion unit, aiming to solve the problem of component damage caused by the vibration of the fan being transmitted to other components.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The present application provides a direct expansion unit, which may include a housing and a first partition. An air outlet passage is formed within the housing. At least a portion of the first partition is disposed within the housing, and an outlet is formed on the first partition, the outlet being located on the air outlet passage. The direct expansion unit may also include a fan and a first heat exchanger. The fan is disposed on the first partition and located at the outlet, configured to direct airflow along the air outlet passage. At least a portion of the first heat exchanger is disposed within the air outlet passage and connected to the first partition. The direct expansion unit may also include a seismic isolation layer disposed between the first heat exchanger and the first partition, or between the first partition and the fan.

[0008] In this way, the seismic isolation layer can isolate the hard connection between the first heat exchanger and the first partition or between the first partition and the fan, thereby preventing vibration from being transmitted from the first partition to the first heat exchanger, or from the fan to the first partition and then to the first heat exchanger, thereby preventing the first heat exchanger from being damaged by vibration.

[0009] In some embodiments, the material of the seismic isolation layer may be an elastic material. Since the elastic material can undergo elastic deformation when subjected to vibration, it absorbs and consumes the energy of the vibration, thereby reducing the transmission of vibration between the fan and the first partition, or reducing the transmission of vibration between the first partition and the first heat exchanger.

[0010] In some embodiments, the first heat exchanger is disposed on a side of the first partition facing away from the fan, and the first heat exchanger and the fan are arranged in a vertical direction.

[0011] This allows the heat-exchanged air to flow vertically, preventing energy loss due to airflow diversion. Furthermore, the vertical arrangement of the two effectively reduces the floor space required for the air flow path, thereby effectively saving space in the machine room.

[0012] In some embodiments, the housing may include a frame and a plurality of panels, wherein the plurality of panels are connected to the frame to form an air outlet channel, and at least a portion of the first heat exchanger is disposed in the air outlet channel.

[0013] The shell adopts a structure in which multiple panels are connected to a frame. The frame can be used to fix and support the panels, thereby enhancing the stability of the shell.

[0014] In some embodiments, the direct expansion unit may further include a support member connected between the first partition and the frame to support the first partition. Thus, the support member can support the first partition and thus the fan, while leaving space for the first heat exchanger to be installed.

[0015] In some embodiments, the support member may include a support column, which may include a first support column, a second support column and a third support column. The first support column, the second support column and the third support column are arranged in a triangle in the horizontal direction, and the first support column, the second support column and the third support column are all connected between the first partition and the frame.

[0016] In this way, the first support column, the second support column and the third support column can all be used to support the first partition. Since the first support column, the second support column and the third support column are arranged in a triangle in the horizontal direction, three support points that are not on the same straight line can be formed for the first partition, making the support more stable.

[0017] In some embodiments, the frame may include a first column, a second column and a third column, wherein the first column, the second column and the third column all extend in a vertical direction, and the first column is connected to the first support column, the second column is connected to the second support column, and the third column is connected to the third support column.

[0018] In this way, the pressure borne by the first support column, the second support column and the third support column can be transmitted to the first column body, the second column body and the third column body, thereby dispersing the force to the frame body, thus increasing the load-bearing capacity of the support member.

[0019] In some embodiments, the first column is arranged on the outside of the first support column and fits with the first support column; the second column is arranged on the outside of the second support column and fits with the second support column; the third column is arranged on the outside of the third support column and fits with the third support column.

[0020] In this way, the contact areas between the first support column and the first column, between the second support column and the second column, and between the third support column and the third column can be made larger, so that the force on the frame is more uniform and the bearing capacity of the support member is further improved.

[0021] In some embodiments, the fan may be an electronically commutated fan (EC fan). An EC fan is a permanent magnet synchronous motor fan driven by electronic commutation technology. It uses a digital brushless DC outer rotor motor as its power source and is precisely controlled by an electronic control unit to adjust the speed and control the air volume.

[0022] Because EC fans are small in size and light in weight, they can adapt to various compact installation environments, thereby reducing the size of the direct expansion unit and saving the required space.

[0023] The present application also provides a direct expansion unit, which may include a housing, a first partition, a fan, a first heat exchanger, and a seismic isolation layer. The housing has an air outlet passage formed therein, the first partition has an outlet formed thereon, the outlet being located on the air outlet passage. The fan is connected to the first partition to direct airflow along the air outlet passage. At least a portion of the first heat exchanger is disposed within the air outlet passage and is connected to the first partition. The seismic isolation layer is disposed between the first heat exchanger and the first partition, or between the first partition and the fan.

[0024] In this way, the isolation layer can isolate the hard connection between the first heat exchanger and the first partition or between the first partition and the fan, thereby preventing vibration from being transmitted from the first partition to the first heat exchanger or from the fan to the first partition and then to the first heat exchanger, thereby preventing the first heat exchanger from being damaged by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is one of the structural schematic diagrams of a direct expansion unit provided in this application;

[0027] Figure 2 for Figure 1 The second structural diagram of the direct expansion unit shown;

[0028] Figure 3 for Figure 1 The third structural diagram of the direct expansion unit shown;

[0029] Figure 4 for Figure 1 The fourth structural diagram of the direct expansion unit shown in FIG.

[0030] Figure 5 for Figure 1 The fifth structural diagram of the direct expansion unit shown;

[0031] Figure 6 A schematic structural diagram of a frame provided in an embodiment of the present application;

[0032] Figure 7 for Figure 1 The sixth structural diagram of the direct expansion unit shown;

[0033] Figure 8 for Figure 1 The seventh structural diagram of the direct expansion unit shown;

[0034] Figure 9 for Figure 1 The eighth structural diagram of the direct expansion unit shown;

[0035] Figure 10 for Figure 9 The enlarged view of the direct expansion unit at point A is shown;

[0036] Figure 11 for Figure 1 The ninth structural diagram of the direct expansion unit shown;

[0037] Figure 12 for Figure 1 The tenth structural diagram of the direct expansion unit is shown;

[0038] Figure 13 for Figure 1 The structural diagram of the direct expansion unit shown is eleventh;

[0039] Figure 14 for Figure 1 The structural diagram of the direct expansion unit shown is the twelfth;

[0040] Figure 15 for Figure 1 The thirteenth schematic diagram of the structure of the direct expansion unit shown;

[0041] Figure 16 for Figure 1The structural diagram of the direct expansion unit shown in Figure 14;

[0042] Figure 17 for Figure 16 The enlarged view of the direct expansion unit at point B is shown;

[0043] Figure 18 for Figure 1 The structural diagram of the direct expansion unit shown in FIG15;

[0044] Figure 19 for Figure 1 The structural diagram of the direct expansion unit shown is the sixteenth;

[0045] Figure 20 for Figure 1 The structural schematic diagram of the direct expansion unit shown is seventeen.

[0046] Reference numerals: 100, direct expansion unit;

[0047] 10. Shell; 101. Air inlet; 102. Air outlet; 11. Accommodation space; 111. Air outlet channel; 111A. First air outlet channel; 111B. Second air outlet channel; 112. Accommodation chamber; 12. Frame; 121. First column; 1211. First column; 1212. Second column; 1213. Third column; 122. Second column; 123. Third column; 13. Panel; 13A. First panel; 13B. Second panel; 131. First Plate; 1311, first sub-plate; 1312, second sub-plate; 132, second plate; 133, third plate; 1331, third sub-plate; 1332, fourth sub-plate; 134, fourth plate; 1341, fifth sub-plate; 1342, sixth sub-plate; 135, fifth plate; 1351, seventh sub-plate; 1352, eighth sub-plate; 14, first reinforcing beam; 15, second reinforcing beam; 16, third reinforcing beam; 17, fourth reinforcing beam; 20 , refrigerant circulation system; 21, fan; 22, first heat exchanger; 221, first mounting portion; 222, second mounting portion; 30, first partition; 301, outlet; 40, support member; 40A, support column; 41, first support column; 42, second support column; 43, third support column; 50, water tray; 501, drain hole; 51, water tray body; 52, extension plate; 60, heightening member; 601, heightening beam; 602, heightening column; 61, first heightening member; 6 2. Second height-raising member; 70. First fixing member; 71. First connecting plate; 72. Second connecting plate; 73. Fixing bar; 80. Second fixing member; 81. First bending edge; 82. Support plate; 83. Second bending edge; 90. Second partition; 901. Opening; 91. Complete machine base; 911. Base body; 9111. Channel steel bar; 912. Raised connecting portion; 92. Compressor base; 921. Base body; 922. Compressor water tray; 93. Second heat exchanger base. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," and the like, indicating directions or positional relationships, are based on the directions or relative positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Unless otherwise specified, the above-mentioned directions may be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are met.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0051] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "communicated" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be directly connected, indirectly connected through an intermediary, or internally connected between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0052] In the embodiments of the present invention, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, article, or device comprising the element.

[0053] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] With the development of the global economy and the acceleration of urbanization, people's requirements for living and working environments are constantly increasing. Air conditioners are important equipment for regulating indoor environments, and air conditioning technology is constantly developing and innovating as demand increases.

[0055] As a form of air conditioning, direct expansion units feature their own compressor. Liquid refrigerant in the refrigeration system evaporates directly in the evaporator (direct expansion), absorbing heat and cooling the air outside the evaporator. This direct expansion cooling method reduces energy loss during transfer, offers high heat exchange efficiency, and eliminates the need for cooling water or a cooling water system, making installation easy.

[0056] A direct expansion unit usually has a fan for making air flow flow in the direct expansion unit. However, the fan generates vibration during operation, and the vibration of the fan can be transmitted to other components and cause damage.

[0057] Based on this, an embodiment of the present application provides a direct expansion unit that can prevent the fan from transmitting vibrations to other components by isolating the hard connections between the fan and other components, thereby preventing vibrations from causing damage to other components.

[0058] Please refer to Figure 1 , Figure 1 This is one of the structural schematic diagrams of a direct expansion unit 100 provided in the present application. The direct expansion unit 100 may include a shell 10 and a refrigerant circulation system 20. A accommodating space 11 is formed in the shell 10, and the refrigerant circulation system 20 is arranged in the accommodating space 11.

[0059] The refrigerant circulation system 20 is used for cooling or heating. Since the refrigerant circulation system 20 is arranged in the accommodating space 11 in the shell 10, it can effectively prevent the refrigerant from diffusing heat to the outside during the transmission process, thereby reducing energy loss and improving the energy efficiency of the direct expansion unit 100.

[0060] In some embodiments of the present application, the housing 10 may include a frame 12 and a panel 13. The panel 13 may be multiple, and the multiple panels 13 are connected to the frame 12 to form the accommodating space 11. In this way, the housing 10 adopts a structure in which the multiple panels 13 are connected to the frame 12. The frame 12 is used to fix and support the panels 13, which can enhance the stability of the housing 10.

[0061] In some embodiments, the panel 13 may include an inner panel, an outer panel, and a filling layer. The inner panel is spaced apart from the outer panel, and the filling layer is disposed between the inner and outer panels to provide thermal insulation between the inner and outer panels. For example, the filling layer may be formed by foaming. The foam material expands to separate the inner and outer panels, thereby reducing heat transfer between the inner and outer panels, thereby reducing energy loss and improving the energy efficiency of the direct expansion unit 100.

[0062] Please refer to Figure 1 and Figure 2 , Figure 2 for Figure 1 As shown in the second structural diagram of the direct expansion unit 100, in some embodiments, the accommodating space 11 may include an air outlet channel 111 and an accommodating chamber 112. The air outlet channel 111 and the accommodating chamber 112 are spaced apart. Part of the refrigerant circulation system 20 is disposed within the air outlet channel 111, and part of the refrigerant circulation system 20 is also disposed within the accommodating chamber 112. The panel 13 includes a first panel 13A and a second panel 13B. Both the first panel 13A and the second panel 13B are connected to the frame 12. Multiple first panels 13A surround the air outlet channel 111, and multiple second panels 13B surround the accommodating chamber 112.

[0063] In this way, the air outlet channel 111 and the accommodating chamber 112 can be used to accommodate parts of the refrigerant circulation system 20 respectively, so as to realize functional zoning. When a fault occurs in the direct expansion unit 100, the unit can be repaired in different areas, which makes the operation more convenient.

[0064] Please refer to Figure 3 , Figure 3 for Figure 1 In the third structural diagram of the direct expansion unit 100 shown in FIG. 1 , in some embodiments of the present application, the housing 10 may further be provided with an air inlet 101 and an air outlet 102 , both of which are connected to an air outlet passage 111 . In this manner, air can flow from the air inlet 101 into the air outlet passage 111 and out through the air outlet 102 .

[0065] Please refer to Figure 4 , Figure 4 for Figure 1 As shown in the fourth structural diagram of the direct expansion unit 100 , in some embodiments of the present application, the direct expansion unit 100 may further include a first partition 30 , on which an outlet 301 is formed, and the outlet 301 is arranged on the air outlet channel 111 .

[0066] The refrigerant circulation system 20 may include a fan 21 connected to the first partition 30 . The fan 21 is configured to allow air to flow along the air outlet channel 111 .

[0067] In some embodiments of the present application, at least a portion of the first partition 30 is disposed within the housing 10, and the fan 21 is disposed on the first partition 30 and located at the outlet 301. In this way, the fan 21 can allow air to flow through the outlet 301 along the air outlet channel 111.

[0068] The refrigerant circulation system 20 may further include a first heat exchanger 22, at least a portion of which is disposed within the air outlet passage 111 and connected to the first partition 30. The first heat exchanger 22 may be an evaporator. The refrigerant within the evaporator evaporates and absorbs heat, allowing the air flowing through the evaporator to exchange heat with the refrigerant, thereby lowering the air temperature and achieving cooling.

[0069] During operation, the fan 21 may vibrate due to imbalance of the blades or the wind wheel, poor bearing lubrication or unstable air flow. Since the fan 21 and the first heat exchanger 22 are both connected to the first partition 30, the vibration of the fan 21 will be transmitted to the first partition 30, and then transmitted to the first heat exchanger 22 by the first partition 30, thereby causing the first heat exchanger 22 to vibrate and cause faults such as parts displacement.

[0070] To prevent vibration from the fan 21 from damaging the first heat exchanger 22, in some embodiments, the direct expansion unit 100 further includes a seismic isolation layer. The seismic isolation layer can be disposed between the first heat exchanger 22 and the first partition 30. This layer isolates the hard connection between the first heat exchanger 22 and the first partition 30, thereby preventing vibration from being transmitted from the first partition 30 to the first heat exchanger 22 and potentially damaging the first heat exchanger 22.

[0071] The seismic isolation layer can also be arranged between the first partition plate 30 and the fan 21. In this way, the seismic isolation layer can isolate the hard connection between the first partition plate 30 and the fan 21, thereby preventing the vibration from being transmitted from the fan 21 to the first partition plate 30, and further preventing the vibration from being transmitted to the first heat exchanger 22 and causing damage to the first heat exchanger 22.

[0072] In some embodiments of the present application, the material of the seismic isolation layer can be an elastic material, which can undergo elastic deformation when subjected to vibration, thereby absorbing and consuming the energy of the vibration, thereby reducing the transmission of vibration between the fan 21 and the first partition 30, or reducing the transmission of vibration between the first partition 30 and the first heat exchanger 22.

[0073] Optionally, the isolation layer can be thermal insulation cotton, which can not only reduce the transmission of vibration between the fan 21 and the first partition 30, or the transmission between the first partition 30 and the first heat exchanger 22, but also play a role in thermal insulation, reducing heat loss during the flow of air.

[0074] Optionally, the seismic isolation layer may also be made of rubber, sponge or elastic plastic, all of which can achieve a soft connection between the fan 21 and the first partition 30 or between the first partition 30 and the first heat exchanger 22, and this application does not impose further restrictions on this.

[0075] Please refer to Figure 3 and Figure 4The first heat exchanger 22 is located on the side of the first partition 30 facing away from the fan 21, and the first heat exchanger 22 and the fan 21 are arranged vertically. This allows air to enter the air outlet 111 from the air inlet 101, undergo heat exchange in the first heat exchanger 22, and then enter the fan 21 through the outlet 301 on the first partition 30 and be discharged into the room.

[0076] Because the first heat exchanger 22 and the fan 21 are arranged vertically, the heat-exchanged air can flow vertically, preventing energy loss due to airflow diversion. Furthermore, their vertical arrangement effectively reduces the floor space required for the air flow path, thereby effectively saving space in the machine room.

[0077] Please refer to Figure 5 , Figure 5 for Figure 1 In the fifth structural diagram of the direct expansion unit 100 shown in FIG. 1 , in some embodiments of the present application, the direct expansion unit 100 may further include a support member 40 connected between the first partition 30 and the frame 12 to support the first partition 30. In this manner, the support member 40 can support the first partition 30 and thus the fan 21, while also leaving space for the first heat exchanger 22.

[0078] Please refer to Figure 6 , Figure 6 This is a structural schematic diagram of a frame 12 provided in an embodiment of the present application. In some embodiments of the present application, the frame 12 includes a first column 121, a second column 122 and a third column 123. The first column 121 extends along a first direction, the second column 122 extends along a second direction, and the third column 123 extends along a third direction. The first column 121, the second column 122 and the third column 123 are all connected.

[0079] The first column 121 , the second column 122 and the third column 123 extend in different directions respectively, and can form a stable support structure to support pressure from different directions, thereby enhancing the stability of the frame.

[0080] In some embodiments, the first direction may be a vertical direction, and the first column 121, the second column 122, and the third column 123 are all perpendicular to each other. In this way, a rectangular parallelepiped frame can be formed, thereby making reasonable use of space and facilitating installation.

[0081] Please refer to Figure 7 、 Figure 8 、 Figure 9 and Figure 10 , Figure 7 for Figure 1 The sixth structural diagram of the direct expansion unit 100 is shown in FIG. Figure 8 for Figure 1The seventh structural diagram of the direct expansion unit 100 is shown in FIG. Figure 9 for Figure 1 The eighth structural diagram of the direct expansion unit 100 is shown in FIG. Figure 10 for Figure 9 The shown partial enlarged view of the direct expansion unit 100 at point A, in some embodiments of the present application, the support member 40 may include a support column 40A, the support column 40A may include a first support column 41, a second support column 42 and a third support column 43, the first support column 41, the second support column 42 and the third support column 43 are arranged in a triangular shape in the horizontal direction, and the first support column 41, the second support column 42 and the third support column 43 are all connected between the first partition 30 and the frame 12.

[0082] In this way, the first support column 41, the second support column 42 and the third support column 43 can all be used to support the first partition 30. Since the first support column 41, the second support column 42 and the third support column 43 are arranged in a triangle in the horizontal direction, three support points that are not on the same straight line can be formed for the first partition 30, making the support more stable.

[0083] In a possible structural design, the first support column 41 , the second support column 42 and the third support column 43 may be arranged around the first heat exchanger 22 .

[0084] In another possible structural design, the first support column 41 , the second support column 42 and the third support column 43 may be arranged around the fan 21 .

[0085] In some embodiments of the present application, the frame 12 includes a first column 1211, a second column 1212 and a third column 1213, and the first column 1211, the second column 1212 and the third column 1213 all extend in a vertical direction, wherein the first column 1211 is connected to the first support column 41, the second column 1212 is connected to the second support column 42, and the third column 1213 is connected to the third support column 43.

[0086] In this way, the pressure borne by the first support column 41, the second support column 42 and the third support column 43 can be transmitted to the first column 1211, the second column 1212 and the third column 1213, thereby dispersing the force to the frame 12, thereby increasing the load-bearing capacity of the support member 40.

[0087] In some embodiments of the present application, the first column 1211 is arranged on the outside of the first support column 41 and is in contact with the first support column 41; the second column 1212 is arranged on the outside of the second support column 42 and is in contact with the second support column 42; the third column 1213 is arranged on the outside of the third support column 43 and is in contact with the third support column 43.

[0088] In this way, the contact areas between the first support column 41 and the first column 1211 , the second support column 42 and the second column 1212 , and the third support column 43 and the third column 1213 can be made larger, so that the force on the frame is more uniform, and the bearing capacity of the support member 40 is further improved.

[0089] In some embodiments of the present application, a positioning hole is provided on the first support column 41. After the first support column 41 is fitted with the first column 1211, self-tapping screws are used to fix the connection from the first support column 41 to the first column 1211 at the positioning hole.

[0090] In this way, the connection between the first support column 41 and the first column 1211 can be made more stable, preventing shaking due to vibration of the fan 21 during movement.

[0091] In addition, by using self-tapping screws, screws can be directly screwed into the first column 1211 without pre-drilling holes in the first column 1211 to form a firm connection, which can make installation easier and reduce installation time and cost.

[0092] In some embodiments of the present application, the fan 21 may be an electronic commutation fan (EC fan). An EC fan is a permanent magnet synchronous motor fan driven by electronic commutation technology. It uses a digital brushless DC outer rotor motor as a power source and accurately controls the motor through an electronic control unit to adjust the speed and control the air volume.

[0093] Since the EC fan has the characteristics of small size and light weight, it can adapt to various compact installation environments, thereby reducing the volume of the direct expansion unit 100 and saving the required space.

[0094] Please refer to Figure 11 and Figure 12 , Figure 11 for Figure 1 The ninth structural diagram of the direct expansion unit 100 is shown in FIG. Figure 12 for Figure 1 As shown in the tenth structural diagram of the direct expansion unit 100, since the direct expansion unit 100 usually needs to be installed in a specific machine room, and the space in the machine room is limited, in order to save the installation space of the direct expansion unit 100, in some embodiments of the present application, the direct expansion unit 100 may further include a water receiving tray 50, which is arranged in the shell 10, and the first heat exchanger 22 is arranged on the water receiving tray 50, and the angle between the plane where the first heat exchanger 22 is located and the plane where the water receiving tray 50 is located is greater than 0° and less than 90°.

[0095] When the first heat exchanger 22 operates in cooling mode, water vapor in the air condenses into water due to the heat absorbed by the refrigerant. Therefore, the first heat exchanger 22 is disposed on the water receiving pan 50 to allow the condensed water to flow into the water receiving pan 50. The angle between the plane on which the first heat exchanger 22 lies and the plane on which the water receiving pan 50 lies is greater than 0° and less than 90°. In other words, the first heat exchanger 22 is disposed obliquely on the water receiving pan 50, which allows the first heat exchanger 22 to flow smoothly into the water receiving pan 50 and prevents the condensed water from accumulating on the surface of the first heat exchanger 22 and causing corrosion of the first heat exchanger 22.

[0096] At the same time, since the first heat exchanger 22 is arranged obliquely on the water receiving tray 50, the first heat exchanger 22 can be arranged more compactly above the water receiving tray 50, thereby improving space utilization and saving the volume of the direct expansion unit 100.

[0097] Specifically, in some embodiments, at least a portion of the first heat exchanger 22 is located between the air inlet 101 and the air outlet 102 , and the angle between the windward surface of the first heat exchanger 22 and the plane where the water receiving tray 50 is located is greater than 0° and less than 90°.

[0098] In this way, the first heat exchanger 22 can separate the air outlet channel 111 into a first air outlet channel 111A and a second air outlet channel 111B. The first air outlet channel 111A is located on the air inlet side of the first heat exchanger 22, and the second air outlet channel 111B is located on the air outlet side of the first heat exchanger 22. Since the angle between the windward surface of the first heat exchanger 22 and the plane where the water receiving tray 50 is located is greater than 0° and less than 90°, at least part of the first air outlet channel 111A and at least part of the second air outlet channel 111B can be located at the same horizontal height, thereby reducing the spatial layout requirements of the air outlet channel 111 in terms of height, thereby reducing the height of the direct expansion unit 100 and saving the space occupied by the unit.

[0099] In addition, the angle between the windward surface of the first heat exchanger 22 and the plane where the water receiving tray 50 is located is greater than 0° and less than 90°, which can increase the windward area of ​​the first heat exchanger 22 and thus improve the heat exchange efficiency of the first heat exchanger 22.

[0100] In some embodiments, a drain hole 501 is provided on the water receiving tray 50 , and a condensed water pipe of the water receiving tray 50 is connected to the drain hole 501 , and can be used to discharge the condensed water in the water receiving tray 50 .

[0101] In some embodiments, the outer wall of the water receiving tray 50 may be provided with thermal insulation cotton to ensure that no condensed water condenses on the outer wall of the water receiving tray 50, thereby preventing the condensed water from damaging other components in the unit.

[0102] In some embodiments of the present application, the direct expansion unit 100 may further include a raising member 60, which is arranged on the water receiving tray 50. The first heat exchanger 22 may include a first mounting portion 221 and a second mounting portion 222. The first mounting portion 221 and the second mounting portion 222 are arranged opposite to each other, and the first mounting portion 221 is connected or abutted to one end of the raising member 60 away from the water receiving tray 50, and the second mounting portion 222 is connected or abutted to the water receiving tray 50.

[0103] The first heat exchanger 22 is connected to or abuts the heightened member 60 and the water receiving pan 50, so that the first heat exchanger 22 is tilted on the water receiving pan 50. This creates multiple stress points on the first heat exchanger 22, thereby making the connection of the first heat exchanger 22 more stable and enhancing the stability of the direct expansion unit 100.

[0104] In some embodiments of the present application, at least a portion of the windward surface of the first heat exchanger 22 can constitute a first mounting portion 221 , and at least a portion of the side wall of the first heat exchanger 22 away from the first mounting portion 221 and at least a portion of the windward surface can constitute a second mounting portion 222 .

[0105] In this way, the first heat exchanger 22 can be connected to or abutted against the heightening member 60 and the water receiving tray 50 without providing an additional mechanism, thereby further improving space utilization.

[0106] Please refer to Figure 13 and Figure 14 , Figure 13 for Figure 1 The eleventh structural diagram of the direct expansion unit 100 is shown. Figure 14 for Figure 1 In the twelfth structural diagram of the direct expansion unit 100 shown in FIG. 12 , in some embodiments of the present application, the heightening member 60 may include a first heightening member 61 and a second heightening member 62, which are spaced apart and disposed on the water receiving tray 50. The direct expansion unit 100 may further include a first fixing member 70, which is connected to both ends of the first heightening member 61 and the second heightening member 62 away from the water receiving tray 50, with at least a portion of the first fixing member 70 in surface contact with the first mounting portion 221.

[0107] In this way, the first raising member 61 and the second raising member 62 can both form a fulcrum for the first heat exchanger 22, thereby increasing the stability of the first heat exchanger 22. Since the first fixing member 70 is connected to the end of the first raising member 61 and the second raising member 62 away from the water receiving tray 50, and at least a part of the first fixing member 70 is in surface contact with the first mounting portion 221, the first fixing member 70 can be connected between the first raising member 61 and the second raising member 62 and the first mounting portion 221, and the support area for the first mounting portion 221 can be increased, thereby further increasing the stability of the first heat exchanger 22.

[0108] In a possible structural design, at least a portion of the first fixing member 70 may be a first fixing bar, and the first fixing bar is in surface contact with the first mounting portion 221 .

[0109] In another possible structural design, at least a portion of the first fixing member 70 may be a first fixing plate, and the first fixing plate is in surface contact with the first mounting portion 221 .

[0110] In some embodiments, the first raising member 61 and the second raising member 62 may each include a raising beam 601 and a raising column 602. The raising beam 601 is disposed in the water receiving tray 50. One end of the raising column 602 is connected to the raising beam 601, and the other end is connected to the first fixing member 70. For example, the raising beam 601 may be fixedly connected to the water receiving tray 50 by welding.

[0111] In this way, the contact areas between the first and second height-raising members 61 and 62 and the water receiving tray 50 can be increased, thereby making the first and second height-raising members 61 and 62 more stable.

[0112] Please refer to Figure 13 and Figure 15 , Figure 15 for Figure 1 Thirteenth structural diagram of the direct expansion unit 100 is shown. In some embodiments of the present application, the first fixing member 70 may include a first connecting plate 71, a second connecting plate 72 and a fixing bar 73. The first connecting plate 71 is connected to the first raising member 61, the second connecting plate 72 is connected to the second raising member 62, and the fixing bar 73 extends along the arrangement direction of the first raising member 61 and the second raising member 62. The fixing bar 73 is connected to both the first connecting plate 71 and the second connecting plate 72, and is in surface contact with the first mounting portion 221.

[0113] In this way, the contact area between the first fixing member 70 and the first height-raising member 61 and the second height-raising member 62 can be increased, thereby making the connection of the first fixing member 70 more stable, thereby enhancing the stability of the first heat exchanger 22 .

[0114] In some embodiments, the first connecting plate 71 and the first height-raising member 61 and the second connecting plate 72 and the second height-raising member 62 can be connected by screws, which can make the connection more stable and further enhance the stability of the first heat exchanger 22.

[0115] In one possible structural design, the arrangement direction of the first height-raising member 61 and the second height-raising member 62 is perpendicular to the arrangement direction of the first mounting portion 221 and the second mounting portion 222. In another possible structural design, the arrangement direction of the first height-raising member 61 and the second height-raising member 62 is parallel to the arrangement direction of the first mounting portion 221 and the second mounting portion 222.

[0116] Please refer to Figure 12 、 Figure 13 、 Figure 16 and Figure 17 , Figure 16 for Figure 1 The fourteenth structural diagram of the direct expansion unit 100 is shown. Figure 17 for Figure 16 The direct expansion unit 100 is shown in a partially enlarged view at B. In some embodiments of the present application, the direct expansion unit 100 may further include a second fixing member 80, which is connected to the water receiving tray 50, and at least a portion of the second fixing member 80 is in surface contact with the second mounting portion 222.

[0117] In this way, the second fixing member 80 can be connected between the water receiving tray 50 and the second mounting portion 222 , and the supporting area of ​​the second mounting portion 222 can be increased, thereby enhancing the stability of the first heat exchanger 22 .

[0118] In some embodiments of the present application, the second fixing member 80 may include a first bent edge 81 and a support plate 82, the first bent edge 81 is connected to the water receiving tray 50, the support plate 82 is connected to the first bent edge 81, and the support plate 82 contacts the side wall surface of the first heat exchanger 22.

[0119] In this way, the second fixing member 80 can abut against the first heat exchanger 22, so that the second mounting portion 222 is connected or abutted against the water receiving tray 50. Since the support plate 82 contacts the side wall surface of the first heat exchanger 22, the contact area between the second fixing member 80 and the first heat exchanger 22 can be increased, thereby making the installation of the first heat exchanger 22 more stable.

[0120] It is understood that when the arrangement direction of the first height-raising member 61 and the second height-raising member 62 is perpendicular to the arrangement direction of the first mounting portion 221 and the second mounting portion 222, the extension direction of the support plate 82 is perpendicular to the arrangement direction of the first height-raising member 61 and the second height-raising member 62. When the arrangement direction of the first height-raising member 61 and the second height-raising member 62 is parallel to the arrangement direction of the first mounting portion 221 and the second mounting portion 222, the extension direction of the support plate 82 is parallel to the arrangement direction of the first height-raising member 61 and the second height-raising member 62.

[0121] In some embodiments of the present application, the second fixing member 80 may further include a second bent edge 83, which is connected to the side of the support plate 82 facing away from the first bent edge 81, and the second bent edge 83 is in contact with at least a portion of the windward surface of the first heat exchanger 22.

[0122] In this way, the first heat exchanger 22 can be prevented from sliding on the support plate 82, thereby preventing the first heat exchanger 22 from deflecting during operation.

[0123] In some embodiments of the present application, the water receiving tray 50 may further include a water receiving tray body 51 and an extension plate 52, wherein the extension plate 52 is connected between the water receiving tray body 51 and the first bent edge 81. In this way, the extension plate 52 can facilitate the connection between the water receiving tray body 51 and the first bent edge 81, thereby preventing the water receiving tray body 51 from leaking due to the direct connection between the first bent edge 81 and the water receiving tray body 51.

[0124] In some embodiments, the first bent edge 81 can be connected to the extension plate 52 by screws, so that the connection between the two can be more stable.

[0125] In some embodiments of the present application, the projection of the second fixing member 80 and / or the first heat exchanger 22 on the plane where the water receiving tray 50 is located is located inside the water receiving tray 50 .

[0126] The projection of the second fixing member 80 on the plane where the water receiving pan 50 is located is located inside the water receiving pan 50, which can reduce the spatial layout requirements of the second fixing member 80 in the horizontal direction. The projection of the first heat exchanger 22 on the plane where the water receiving pan 50 is located is located inside the water receiving pan 50, which can prevent the condensed water on the first heat exchanger 22 from flowing to the outside of the water receiving pan 50.

[0127] Please refer to Figure 1 、 Figure 2 and Figure 13 In some embodiments of the present application, the direct expansion unit 100 may further include a second partition 90, which is used to separate the air outlet channel 111 from the accommodating chamber 112, thereby reducing interference between the air outlet channel 111 and the accommodating chamber 112 and improving the operating efficiency of the overall system.

[0128] In some embodiments of the present application, the refrigerant circulation system 20 may further include a compressor and a second heat exchanger. The compressor, the second heat exchanger, and the first heat exchanger 22 are connected via a refrigerant circulation pipeline to form a refrigerant circulation loop. The refrigerant circulation pipeline may include a gas pipeline and a liquid pipeline, both of which are used to circulate the refrigerant.

[0129] In order to connect the refrigerant circulation pipeline, an opening 901 is provided on the second partition 90, and the refrigerant circulation pipeline connects the first heat exchanger 22 with the second heat exchanger through the opening 901, and / or the refrigerant circulation pipeline connects the first heat exchanger 22 with the compressor through the opening 901.

[0130] In this way, the layout of the refrigerant circulation pipeline can be simplified, so that the refrigerant circulation pipeline can be directly connected between the air outlet channel 111 and the accommodating chamber 112 through the opening 901, thereby shortening the length of the refrigerant circulation pipeline and reducing the energy loss of the refrigerant during the circulation process.

[0131] In some embodiments, the water receiving tray 50 can be connected to the second partition 90. The water receiving tray 50 can also include a base, which is connected to the outer wall of the water receiving tray 50, and the base can be fixedly connected to the second partition, thereby fixing the water receiving tray 50 to prevent the water receiving tray 50 from shaking or shifting during the operation of the direct expansion unit 100.

[0132] In some embodiments of the present application, the refrigerant circulation system 20 may further include a solenoid valve 23 disposed on the refrigerant circulation pipeline for controlling the refrigerant circulation pipeline. The solenoid valve 23, the gas pipeline, and the liquid pipeline are all disposed on the windward side of the first heat exchanger 22.

[0133] In this way, since the windward side of the first heat exchanger 22 is unheated air and the leeward side of the first heat exchanger 22 is heat-exchanged air, if the solenoid valve 23, the gas pipeline and the liquid pipeline are all arranged on the leeward side of the first heat exchanger 22, the refrigerant in the gas pipeline and the liquid pipeline will exchange heat with the heat-exchanged air again, thereby reducing the heat exchange efficiency of the unit.

[0134] In addition, the solenoid valve 23, the gas pipeline and the liquid pipeline are all arranged on the windward side of the first heat exchanger 22, which can prevent holes from being opened on the leeward side of the first heat exchanger 22, thereby causing unheated air to enter the leeward side of the first heat exchanger 22 from the accommodating cavity 112, causing heat exchange, thereby reducing the cooling or heating intensity of the unit.

[0135] Please refer to Figures 1 to 19 , Figure 18 for Figure 1 The fifteenth structural diagram of the direct expansion unit 100 is shown in FIG. Figure 19 for Figure 1 As shown in the sixteenth structural diagram of the direct expansion unit 100, since internal maintenance is required during the use of the direct expansion unit 100, in some embodiments of the present application, at least one panel 13 of the multiple panels 13 of the shell 10 is detachably connected to the frame 12.

[0136] In this way, after the panel 13 is disassembled, the refrigerant circulation system 20 to which the panel 13 is directed can be inspected and repaired. The detachable design of the panel 13 can increase the convenience of repairing the direct expansion unit 100.

[0137] In some embodiments of the present application, multiple first panels 13A surround to form an air outlet channel 111, at least one of the multiple first panels 13A is detachably connected to the frame 12, and multiple second panels 13B surround to form a accommodating cavity 112, and at least one of the multiple second panels 13B is detachably connected to the frame 12.

[0138] In this way, when the first panel 13A is removed, the part of the refrigerant circulation system 20 located in the air outlet channel 111 can be inspected, and when the second panel 13B is removed, the part of the refrigerant circulation system 20 located in the accommodating cavity 112 can be inspected separately. Such partitioned inspection can make the inspection of the direct expansion unit 100 more convenient.

[0139] In some embodiments of the present application, the fan 21 is disposed in the air outlet duct 111, and the first panel 13A may include a first plate 131, at least a portion of which faces the fan 21 and is detachably connected to the frame 12. In this way, the fan 21 can be inspected and repaired when the first plate 131 is removed.

[0140] However, if the entire first plate 131 is removed to inspect the fan 21 , the structure around the original first plate 131 is supported only by the frame 12 , which may cause deformation of the frame 12 due to uneven force.

[0141] Therefore, in some embodiments of the present application, the first plate 131 may include a first sub-plate 1311 and a second sub-plate 1312. The first sub-plate 1311 is disposed toward the wind turbine 21 and is detachably connected to the frame 12. The second sub-plate 1312 is coplanar with the first sub-plate 1311 and is fixedly connected to the frame 12. The direct expansion unit 100 may further include a first reinforcing beam 14, which is disposed between the first sub-plate 1311 and the second sub-plate 1312 and is connected to the frame 12.

[0142] Thus, when inspecting the fan 21, only the first sub-plate 1311 needs to be removed, while the second sub-plate 1312 remains connected to the frame 12. This allows the second sub-plate 1312 to disperse the forces acting on the frame 12, thereby increasing the structural stability. Furthermore, the first reinforcing beam 14, disposed between the first sub-plate 1311 and the second sub-plate 1312 and connected to the frame 12, also serves to disperse the forces acting on the frame 12, further enhancing the stability of the frame 12.

[0143] In one possible structural design, the first sub-board 1311 and the second sub-board 1312 can be arranged in the vertical direction, and in this case, the first sub-board 1311 is located above the second sub-board 1312; in another possible structural design, the first sub-board 1311 and the second sub-board 1312 can be at the same height in the horizontal direction.

[0144] In some embodiments, the first panel 13A may further include a second plate 132 , on which an air inlet 101 is disposed, the air inlet 101 being disposed toward the first heat exchanger 22 , so that the first heat exchanger 22 can be inspected and maintained through the air inlet 101 .

[0145] In some embodiments, the fan 21 is located above the first heat exchanger 22 , and the first sub-board 1311 is located above the second sub-board 1312 . Therefore, the second sub-board 1312 may be disposed toward the first heat exchanger 22 .

[0146] In some embodiments of the present application, the second panel 13B may include a third plate 133, a fourth plate 134, and a fifth plate 135. In some embodiments, the refrigerant circulation system 20 may further include a compressor disposed within the accommodating chamber 112. At least one of the plurality of second panels 13B is disposed toward the compressor and is detachably connected to the frame 12. In other words, the third plate 133 is disposed toward the compressor and is detachably connected to the frame 12. In this manner, the compressor can be inspected and repaired when the third plate 133 is removed.

[0147] In some embodiments, the refrigerant circulation system 20 may further include a second heat exchanger, which is disposed in the accommodating cavity 112. At least one of the plurality of second panels 13B is disposed toward the second heat exchanger and is detachably connected to the frame 12. That is, the fourth plate 134 is disposed toward the second heat exchanger and is detachably connected to the frame 12. In this way, when the fourth plate 134 is removed, the second heat exchanger can be inspected and maintained.

[0148] In some embodiments of the present application, the refrigerant circulation system 20 may further include a valve, an air pipeline, and a liquid pipeline, at least part of which is disposed within the accommodating chamber 112, and at least one of the plurality of second panels 13B is disposed toward the valve, air pipeline, and liquid pipeline and is detachably connected to the frame 12, that is, the fifth plate 135 is disposed toward the valve, air pipeline, and liquid pipeline and is detachably connected to the frame 12. In this way, when the fifth plate 135 is removed, the valve, air pipeline, and liquid pipeline can be inspected and repaired.

[0149] In some embodiments, the third plate 133 may include a third sub-plate 1331 and a fourth sub-plate 1332. A second reinforcing beam 15 may be disposed between the third sub-plate 1331 and the fourth sub-plate 1332. The third sub-plate 1331 is detachably connected to the frame 12, while the fourth sub-plate 1332 is fixedly connected to the frame 12. The second reinforcing beam 15 is also connected to the frame 12. In this way, when the third sub-plate 1331 is removed, the compressor can be inspected and repaired. The fourth sub-plate 1332 and the second reinforcing beam 15 are used to enhance the stability of the frame 12.

[0150] In some embodiments, both the fourth sub-board 1332 and the second reinforcing beam 15 can be provided in pairs, connected to opposite sides of the third sub-board 1331 respectively, so as to further enhance the stability of the frame 12 .

[0151] In some embodiments, the fourth plate 134 may include a fifth sub-plate 1341 and a sixth sub-plate 1342. A third reinforcing beam 16 may be disposed between the fifth sub-plate 1341 and the sixth sub-plate 1342. The fifth sub-plate 1341 is detachably connected to the frame 12, the sixth sub-plate 1342 is fixedly connected to the frame 12, and the third reinforcing beam 16 is also connected to the frame 12. In this way, when the fifth sub-plate 1341 is removed, the second heat exchanger can be inspected and repaired, and the sixth sub-plate 1342 and the third reinforcing beam 16 are used to enhance the stability of the frame 12.

[0152] In some embodiments, the fifth plate 135 may include a seventh sub-plate 1351 and an eighth sub-plate 1352. A fourth reinforcing beam 17 may be disposed between the seventh sub-plate 1351 and the eighth sub-plate 1352. The seventh sub-plate 1351 is detachably connected to the frame 12, while the eighth sub-plate 1352 is fixedly connected to the frame 12. The fourth reinforcing beam 17 is also connected to the frame 12. In this way, when the seventh sub-plate 1351 is removed, the valves, gas lines, and liquid lines can be inspected and repaired. The eighth sub-plate 1352 and the fourth reinforcing beam 17 are used to enhance the stability of the frame 12.

[0153] In some embodiments of the present application, the second heat exchanger can be a shell and tube heat exchanger, which has the characteristics of small size, high heat exchange efficiency and no condensation. Using a shell and tube heat exchanger as the second heat exchanger eliminates the need to set up a heat exchanger water tray, which can save the space requirement of the direct expansion unit 100.

[0154] Please refer to Figures 1 to 20 , Figure 20 for Figure 1In the seventeenth structural diagram of the direct expansion unit 100 shown in FIG. 1 , in some embodiments of the present application, a mounting opening is provided at the bottom of the housing 10. The direct expansion unit 100 may further include a complete unit base 91, which is disposed at the mounting opening and connected to the frame 12. The complete unit base 91 may include a base body 911 and a protruding connection portion 912, which is connected to the base body 911.

[0155] The base body 911 includes a plurality of channel steel bars 9111 arranged at intervals to form a hollow structure. In this way, the base body 911 can facilitate heat dissipation of the refrigerant circulation system 20 in the accommodating cavity 112 and prevent component failure due to poor heat dissipation.

[0156] An opening is provided at the bottom end of the first column 121, and the raised connecting portion 912 is fixedly connected to the base body 911, and the raised connecting portion 912 can be inserted into the opening at the bottom end of the first column 121. In this way, the frame 12 can be fixedly connected to the base body 911, thereby enhancing the stability of the frame 12.

[0157] In some embodiments of the present application, the direct expansion unit 100 may further include a compressor base 92 and a second heat exchanger base 93. Both the compressor base 92 and the second heat exchanger base 93 are disposed within the accommodating space 11 and are located on the base body 911. The compressor base 92 may be connected to the second heat exchanger base 93. The compressor base 92 is used to mount the compressor, and the second heat exchanger base 93 is used to mount the second heat exchanger.

[0158] The compressor base 92 and the second heat exchanger base 93 are both located on the base body 911. There is no need to set a foam plate structure between the compressor base 92 and the second heat exchanger base 93 and the base body 911. In this way, the thickness of the base can be reduced, thereby reducing the space required for the direct expansion unit 100.

[0159] The compressor base 92 can be fixedly connected to the second heat exchanger base 93 by welding, which facilitates installation and maintenance.

[0160] Since the compressor generates condensed water during operation, the compressor base 92 may include a base body 921 and a compressor water receiving pan 922. The compressor water receiving pan 922 is connected between the base body 921 and the base body 911 to receive the condensed water generated by the compressor.

[0161] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0162] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A direct expansion unit, characterized in that: include: a housing, wherein an air outlet passage is formed in the housing; a first partition, at least partially disposed in the housing, and having an outlet formed thereon, the outlet being located on the air outlet channel; a fan, disposed on the first partition and located at the outlet, the fan being configured to cause airflow to flow along the air outlet channel; a first heat exchanger, at least partially disposed in the air outlet channel and connected to the first partition; The seismic isolation layer is arranged between the first heat exchanger and the first partition plate, or the seismic isolation layer is arranged between the first partition plate and the fan.

2. A direct expansion unit according to claim 1, characterized in that: The shock-isolating layer is made of elastic material.

3. A direct expansion unit according to claim 1, characterized in that: The first heat exchanger is arranged on a side of the first partition away from the fan, and the first heat exchanger and the fan are arranged in a vertical direction.

4. A direct expansion unit according to any one of claims 1 to 3, characterized in that: The housing further comprises: frame; A plurality of panels are connected to the frame to form the air outlet channel.

5. A direct expansion unit according to claim 4, characterized in that: The direct expansion unit further comprises: A support member is connected between the first partition plate and the frame, and is used to support the first partition plate.

6. A direct expansion unit according to claim 5, characterized in that: The support member includes a support column, and the support column includes: a first support column, a second support column and a third support column, the first support column, the second support column and the third support column are arranged in a triangle in the horizontal direction; the first support column, the second support column and the third support column are all connected between the first partition and the frame.

7. A direct expansion unit according to claim 6, characterized in that: The frame includes: a first column, a second column and a third column, wherein the first column, the second column and the third column all extend in a vertical direction, the first column is connected to the first support column, the second column is connected to the second support column, and the third column is connected to the third support column.

8. A direct expansion unit according to claim 7, characterized in that: The first column is arranged on the outside of the first support column and is in contact with the first support column; the second column is arranged on the outside of the second support column and is in contact with the second support column; the third column is arranged on the outside of the third support column and is in contact with the third support column.

9. A direct expansion unit according to any one of claims 1 to 3, characterized in that: The fan is an electronically commutated fan.

10. A direct expansion unit, characterized in that: include: a housing, wherein an air outlet passage is formed in the housing; a first partition plate, wherein an outlet is formed on the first partition plate, and the outlet is located on the air outlet channel; a fan connected to the first partition, the fan being configured to cause air to flow along the air outlet channel; The first heat exchanger is at least partially arranged in the air outlet channel and connected to the first partition; the seismic isolation layer is arranged between the first heat exchanger and the first partition, or the seismic isolation layer is arranged between the first partition and the fan.

Images