Indoor unit and heating and ventilation equipment

Abstract

The indoor unit comprises a shell, a heat exchanger and a water pump assembly, a heat exchange air duct is defined in the shell, the shell comprises a machine shell and a water pan connected with the machine shell, the water pan comprises a water collecting part and a drainage part which communicate with each other, and the water collecting part is matched with the machine shell to define at least part of the heat exchange air duct; the water drainage part is located on one side of the water collection part, the heat exchanger is arranged above the water collection part, the water pump assembly is arranged beside the water drainage part and comprises a water pump, the water pump is communicated with the water drainage part to pump water in the water drainage part, and the water pump assembly is exposed out of the bottom of the machine shell. According to the technical scheme, the water pump assembly can be conveniently disassembled, assembled and overhauled, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of HVAC technology, and in particular to an indoor unit and HVAC equipment using the indoor unit. Background Art

[0002] The HVAC system generally consists of two parts: an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected by pipes, so that the indoor unit can deliver airflow in the use environment to adjust the temperature and humidity of the use environment.

[0003] The indoor unit is provided with a water receiving pan and a heat exchanger installed above the water receiving pan, and the water receiving pan is used to collect condensed water generated during the operation of the heat exchanger. To facilitate the discharge of condensed water, some indoor units are also provided with a water pump to pump the condensed water out of the water receiving pan.

[0004] In the related art, the water pump is arranged in the water collecting pan. Therefore, in addition to the external return air outlet corresponding to the return air outlet of the indoor unit, an additional inspection port corresponding to the position of the water collecting pan is required on the ceiling. This makes the construction complicated and is inconvenient for the subsequent maintenance and inspection of the water pump. Utility Model Content

[0005] The embodiment of the present application provides an indoor unit and HVAC equipment, which can facilitate the disassembly and maintenance of water pump components and improve work efficiency.

[0006] In a first aspect, an embodiment of the present application provides an indoor unit, the indoor unit comprising a housing, a heat exchanger and a water pump assembly, wherein a heat exchange air duct is defined in the housing, the housing comprises a casing and a water receiving tray connected to the casing, the water receiving tray comprises a water collecting portion and a water draining portion connected to each other, the water collecting portion cooperates with the casing to define at least a portion of the heat exchange air duct, and the water draining portion is located on one side of the water collecting portion;

[0007] The heat exchanger is arranged above the water collecting part, the water pump assembly is arranged beside the drainage part, the water pump assembly includes a water pump, the water pump is connected to the drainage part to extract water in the drainage part, wherein the water pump assembly is exposed at the bottom of the casing.

[0008] In some of the embodiments, the water pump assembly is disposed in the middle of the casing.

[0009] In some embodiments, the bottom surface of the housing is recessed upward to form an installation space, and the installation space is open downward to form an opening;

[0010] Wherein, the water pump assembly is accommodated in the installation space and is exposed through the opening.

[0011] In some embodiments, a motor assembly and a wind wheel are further included, wherein the wind wheel is arranged in the heat exchange air duct, the motor assembly includes a motor bracket and a driving motor installed on the motor bracket, the motor bracket is connected to the housing, and the driving motor is drivingly connected to the wind wheel;

[0012] Wherein, the water pump assembly is arranged between the motor bracket and the drainage part.

[0013] In some embodiments, the motor bracket, the water pump assembly and the drainage portion are arranged on the same side of the housing.

[0014] In some embodiments, the water pump assembly further includes a water pump box, wherein a water pump chamber is defined in the water pump box, the water pump chamber is communicated with the drainage portion, and the water pump is accommodated in the water pump chamber to extract water flowing from the drainage portion into the water pump chamber;

[0015] Wherein, the water pump box is provided with a first connecting portion and a second connecting portion, and the first connecting portion is fixedly connected to the motor bracket, and the second connecting portion is fixedly connected to the casing.

[0016] In some embodiments, the first connection portion is detachably fixedly connected to the motor bracket, and the second connection portion is detachably fixedly connected to the housing.

[0017] In some embodiments, the water pump box includes a first box body and a second box body, the first box body and the second box body are connected and cooperate to define the water pumping cavity;

[0018] Wherein, the first box body and the second box body cooperate with each other to form the first connecting portion and the second connecting portion.

[0019] In some embodiments, the motor bracket includes a first cover body and a second cover body covering each other, at least one of the first cover body and the second cover body is connected to the housing, wherein the first cover body and the second cover body cooperate to clamp and fix the first connecting portion.

[0020] In some embodiments, the first connection portion includes a first sub-connection portion and a second sub-connection portion, the first sub-connection portion is disposed on the first box body, the second sub-connection portion is disposed on the second box body, and cooperates with the first sub-connection portion to form a positioning opening;

[0021] Wherein, a positioning column is provided on the surface of the first cover body facing the second cover body, and the positioning column passes through the positioning opening.

[0022] In some embodiments, the first sub-connecting portion includes a first connecting plate and a first surrounding frame connected to the outer side of the first connecting plate, and the first surrounding frame cooperates with the first connecting plate to form a positioning groove;

[0023] The second sub-connecting portion includes a second connecting plate and a second surrounding frame connected to the outer side of the second connecting plate, the second connecting plate is fitted with the first connecting plate and forms the positioning opening together, and the second surrounding frame is fitted with the first surrounding frame;

[0024] A positioning boss is further provided on the surface of the first cover body facing the second cover body, and the positioning column is passed through the positioning boss, wherein the positioning boss is used to be embedded in the positioning groove.

[0025] In some embodiments, the housing has a side wall, and a through hole is provided on the side wall, and the second connection portion includes a first pin and a second pin, the first pin is provided on the first box body, and the second pin is provided on the second box body;

[0026] Wherein, the first plug pin and the second plug pin are inserted into the through hole to be plugged into the side wall of the housing.

[0027] In some embodiments, the water pump assembly further includes a vibration damping member, and the water pump includes a pump body and a connecting foot, the pump body is used to extract water in the water pumping cavity, the connecting foot is connected to the outer side of the pump body, and the vibration damping member is sleeved on the connecting foot;

[0028] The first box body is provided with a first fixing portion, and the second box body is provided with a second fixing portion. The first fixing portion can cooperate with the second fixing portion to fix the vibration damping member so as to fix the pump body in the water pumping cavity.

[0029] In some embodiments, the first fixing portion cooperates with the second fixing portion to form a fixing groove with one side open;

[0030] Wherein, at least a portion of the vibration damping member extends into the fixing groove, and a groove wall surface of the fixing groove is used to abut and fix the vibration damping member.

[0031] In some embodiments, a first half groove is formed on a surface of the first fixing portion facing the second fixing portion, and a second half groove is formed on a surface of the second fixing portion facing the first fixing portion;

[0032] Wherein, when the first box body and the second box body are in a connected state, the first half groove is communicated with the second half groove to form the fixing groove.

[0033] In some embodiments, the vibration damping member includes a vibration damping body and a plurality of first abutting ribs, the vibration damping body is formed with a sleeve groove, and the connecting foot is disposed in the sleeve groove;

[0034] A plurality of the first abutment ribs are connected to the outer surface of the vibration-damping body at intervals and are used to abut against the groove wall surface of the first half groove and the groove wall surface of the second half groove.

[0035] In some embodiments, the vibration damping member further includes a plurality of second abutment ribs, and the plurality of second abutment ribs are connected to the groove wall surface of the sleeve groove at intervals to abut against the connecting foot.

[0036] In some embodiments, one of the first box body and the second box body is provided with a first clamping portion, and the other is provided with a second clamping portion;

[0037] The first clamping portion and the second clamping portion are adapted to be clamped together, so that the first box body and the second box body are clamped together.

[0038] In some embodiments, the first clamping portion includes a root segment and a hook segment, one end of the root segment is connected to the first box body or the second box body, and the other end is connected to the hook segment;

[0039] Wherein, the second clamping portion is provided with a clamping groove, the root section is inserted into the clamping groove, and the hook section abuts against the back side of the second clamping portion.

[0040] In some embodiments, the indoor unit further includes a connecting pipe, one end of which is connected to the drainage portion, and the other end of which is connected to the water pump box, so as to connect the drainage portion and the water pumping chamber.

[0041] In some embodiments, the water receiving tray is provided with a first joint communicating with the drainage portion, the water pump box is provided with a second joint communicating with the water pumping chamber, one end of the connecting pipe is sleeved with the first joint, and the other end is sleeved with the second joint;

[0042] Wherein, the first connector and the second connector are arranged opposite to each other.

[0043] In some embodiments, at least one of the first joint and the second joint is provided with a first limiting portion, and at least one end of the connecting pipe is provided with a second limiting portion;

[0044] The first limiting portion is connected to the second limiting portion in a limiting manner to resist displacement or deformation of the connecting pipe along its own axial direction.

[0045] In some embodiments, the first limiting portion is a limiting column, and the second limiting portion is a limiting hook, and the limiting hook is hooked on the limiting column;

[0046] And / or, the connecting pipe comprises a pipe body and a clamp, the clamp is provided at at least one end of the pipe body, and at least one of the clamps is provided with the second limiting portion;

[0047] And / or, the connecting pipe is a straight pipe.

[0048] In some of the embodiments, the indoor unit further comprises a support plate connected between the motor bracket and the drainage portion;

[0049] Wherein, the support plate is located above the water pump assembly.

[0050] In a second aspect, an embodiment of the present application provides a HVAC device, which includes an outdoor unit and an indoor unit as described above, wherein the indoor unit is connected to the outdoor unit via a pipeline.

[0051] Based on the indoor unit and HVAC equipment of the embodiment of the present application, the water pump assembly is exposed at the bottom of the casing, and the water pump assembly is arranged beside the water receiving tray, so that the embodiment of the present application has at least the following technical effects:

[0052] In the actual maintenance process, the staff can directly face the water pump assembly through the external return air vent on the ceiling along the bottom-up observation direction to perform maintenance and other operations on the water pump assembly, which is more convenient. At the same time, there is no need to set up an additional external inspection port on the ceiling specifically for repairing the water pump assembly. In addition, by setting the water pump assembly next to the water tray, firstly, when the staff repairs the water pump, they no longer need to disassemble the water tray, but can directly operate the water pump assembly, thereby reducing steps, simplifying operations, reducing maintenance difficulty, and improving work efficiency. Secondly, it is conducive to shortening the distance between the water pump and the drainage part, and improving the suction and drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying any creative work.

[0054] Figure 1 This is a schematic diagram of the structure of an indoor unit according to an embodiment of the present application;

[0055] Figure 2 for Figure 1 The structural diagram of the indoor unit in section AA;

[0056] Figure 3 for Figure 1 Schematic diagram of the exploded structure of the indoor unit;

[0057] Figure 4 for Figure 1 Schematic diagram of the bottom structure of the indoor unit;

[0058] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0059] Figure 6 This is a connection diagram of an embodiment of the water receiving tray, water pump assembly and thermal insulation structure of the present application;

[0060] Figure 7 This is a schematic diagram of the explosion structure of an embodiment of the connecting pipe of the present application;

[0061] Figure 8 for Figure 6 A partial enlarged view of point C in the middle;

[0062] Fig. 9 This is a schematic diagram of the exploded structure of an embodiment of a water pump assembly and a motor bracket of the present application;

[0063] Fig.10 for Fig. 9 A schematic structural diagram of the first cover body;

[0064] Fig.11 This is a schematic diagram of the connection between the water pump assembly and the insulation structure of an embodiment of the present application;

[0065] Fig.12 for Fig.11 Schematic diagram of the connection between the water pump assembly and the insulation structure from another perspective;

[0066] Fig.13 for Fig.11 Schematic diagram of the exploded structure of the water pump assembly from one perspective;

[0067] Fig.14 for Fig.11 Schematic diagram of the exploded structure of the water pump assembly from another perspective;

[0068] Fig.15 for Fig.11 Schematic diagram of the cross-section connection between the water pump assembly and the insulation structure;

[0069] Fig.16 for Fig.15 A partial enlarged view of point D in the middle;

[0070] Fig.17 for Fig.15 A partial enlarged view of point E in the middle;

[0071] Fig.18This is a schematic diagram of the connection between the water pump and the vibration damping member according to an embodiment of the present application;

[0072] Fig.19 This is a schematic diagram of the structure of the water pump assembly and water outlet pipe of the indoor unit of this application.

[0073] Description of Figure Numbers:

[0074] 100, indoor unit; 101, air duct inlet interface; 102, air duct outlet interface; 103, water outlet pipe; 10, shell; 11, air inlet chamber; 12, pressure diffusion chamber; 13, heat exchange chamber; 14, return air outlet; 15, air outlet; 16, housing; 17, installation space; 20, first shell; 20a, upper cover; 21, air inlet chamber upper shell; 22, pressure diffusion chamber upper shell; 23, heat exchange chamber upper shell; 24, air inlet chamber rear shell; 30, second shell; 31, pressure diffusion chamber lower shell; 32, water receiving tray; 321, water receiving trough; 322, water collecting part; 323, drainage part; 32 5. First joint; 3251. First position limiting part; 40. Side panel; 41. Support plate; 50. Fan; 51. Wind wheel; 53. Motor assembly; 531. Motor bracket; 5311. First cover; 5311b. Positioning column; 5311c. Positioning boss; 5313. Second cover; 533. Drive motor; 60. Heat exchanger; 70. Water pump assembly; 71. Water pump box; 71a. Pumping cavity; 71c. Fixing groove; 711. First box; 7111. First clamping part; 7111a. Root section; 7111b. Hook section; 7112. First Fixed part; 7112a, first half groove; 712, second box body; 7121, second clamping part; 7121a, clamping groove; 7124, second fixed part; 7124a, second half groove; 713, second joint; 714, drain pipe; 73, water pump; 731, pump body; 7311, water inlet; 7313, water outlet; 732, connecting foot; 74, water level switch; 741, float; 75, check valve; 76, water pipe; 761, first pipe section; 762, second pipe section; 763, step part; 77, vibration damping member; 771, vibration damping body ; 771a, sleeve groove; 772, first abutment rib; 773, second abutment rib; 78, first connection part; 781, first sub-connection part; 7811, first connection plate; 7812, frame; 7813, positioning port; 7814, positioning groove; 782, second sub-connection part; 7821, second connection plate; 7822, second frame; 79, second connection part; 7911, first pin; 7912, second pin; 80, connecting pipe; 81, pipe body; 811, annular groove; 83, clamp; 831, second limiting part; 90, thermal insulation structure.

[0075] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0076] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0077] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0078] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0079] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0080] Please refer to Figures 1 to 3 The indoor unit 100 includes a housing 10 , a fan 50 , a heat exchanger 60 and a water pump assembly 70 .

[0081] The housing 10 defines a heat exchange air duct suitable for the indoor unit 100 for gas flow. The heat exchange air duct includes an air inlet chamber 11, a pressure diffusion chamber 12, and a heat exchange chamber 13 which are connected in sequence. The housing 10 also forms an air return port 14 connected to the air inlet chamber 11 and an air outlet 15 connected to the heat exchange chamber 13, so that the gas can enter the heat exchange air duct from the air return port 14, and can pass through the air inlet chamber 11, the pressure diffusion chamber 12, and the heat exchange chamber 13 in sequence, and finally flow out from the air outlet 15.

[0082] To facilitate the assembly of the indoor unit 100, the housing 10 includes a first housing 20 and a second housing 30. The first housing 20 and the second housing 30 can be made of metal materials such as aluminum alloy or stainless steel to meet the requirements of high strength and corrosion resistance, or the first housing 20 and the second housing 30 can also be made of plastic materials to achieve lightweight housing 10. They can be connected individually or in combination by means of clamping, riveting, welding and bolting, etc., and the present application does not limit this.

[0083] Specifically, please combine Figures 1 to 3 The first housing 20 includes an upper cover 20a and two side panels 40. The two side panels 40 are spaced apart in the left-right direction XX. The upper cover 20a is generally disposed above the two side panels 40 and extends along the front-rear direction YY. The upper cover 20a is connected to the two side panels 40 on both sides along the left-right direction XX. In this way, the upper cover 20a and the two side panels 40 are spliced ​​to form the first housing 20. The second housing 30 is spaced apart from the upper cover 20a in the up-down direction ZZ. The second housing 30 is connected to the two side panels 40 on both sides along the left-right direction XX. The first housing 20, the second housing 30 and the two side panels 40 are spliced ​​to form the housing 10.

[0084] like Figure 2 and Figure 3 As shown, along the front-to-back direction YY from back to front, the upper cover 20a includes an air inlet chamber rear shell 24, an air inlet chamber upper shell 21, a pressure diffuser chamber upper shell 22 and a heat exchange chamber upper shell 23 connected in sequence, and the second shell 30 includes an air inlet chamber front shell, a shell body and a water receiving tray 32 connected in sequence. The air inlet chamber rear shell 24 and the air inlet chamber front shell are spaced apart in the front-to-back direction YY, and the air inlet chamber rear shell 24, the air inlet chamber upper shell 21, the air inlet chamber front shell and the side panels 40 define the air inlet chamber 11. The pressure diffuser chamber upper shell 22 and the pressure diffuser chamber lower shell 31 are spaced apart in the upper line direction ZZ, and the pressure diffuser chamber upper shell 22, the pressure diffuser chamber lower shell 31 and the side panels 40 define the pressure diffuser chamber 12, and the heat exchange chamber upper shell 23, the water receiving tray 32 and the side panels 40 define the heat exchange chamber 13.

[0085] The fan 50 is arranged in the air inlet chamber 11, and it can be a cross-flow fan, a centrifugal fan or an axial flow fan, etc. Taking the cross-flow fan as an example, the fan 50 includes a wind wheel 51 and a motor assembly 53. The wind wheel 51 is arranged in a long cylindrical shape and is arranged in the air inlet chamber 11 of the heat exchange air duct. The motor assembly 53 includes a drive motor 533. The drive motor 533 is arranged at one end of the wind wheel 51 and is connected to the housing 10, and the drive motor 533 is transmission-connected to the wind wheel 51, that is, the output shaft of the drive motor 533 is connected to the wind wheel 51. The wind wheel 51 has a plurality of blades distributed along its circumference. When the drive motor 533 drives the wind wheel 51 to rotate, the rotating blades can cause the gas to flow from the air inlet chamber 11 to the pressure diffusion chamber 12. The cross-flow fan has the advantages of energy saving, large air volume, low noise and simple installation.

[0086] Combination Figure 3 and Figure 4 The heat exchanger 60 is accommodated in the heat exchange cavity 13, and is used to exchange heat with the airflow flowing through the heat exchange cavity 13 and passing through the heat exchanger 60. For example, a plurality of refrigerant pipes are provided in the heat exchanger 60, and the gas exchanges heat with the refrigerant in the pipe when passing through the heat exchanger 60, thereby changing the temperature of the gas. During cooling, the gas exchanges heat with the refrigerant in the heat exchanger 60 to form low-temperature air; during heating, the gas exchanges heat with the refrigerant in the heat exchanger 60 to form heated air. The shape of the heat exchanger 60 of the present application can be a variety of shapes such as straight line, V-shaped, arc-shaped or wavy, which are not limited here.

[0087] During the operation of the indoor unit 100, condensed water may be formed in the heat exchanger, and the condensed water enters the water receiving pan 32 under the action of gravity. As time goes by, the condensed water accumulates in the water receiving pan 32 and the water level gradually rises. In order to facilitate the discharge of condensed water, some indoor units 100 are also provided with a water pump assembly 70. In the related art, the water pump 73 of some indoor units 100 is set in the water receiving pan 32. Therefore, in addition to the outer return air outlet corresponding to the return air outlet 14, an additional inspection port corresponding to the position of the water receiving pan 32 is required on the ceiling, which makes the construction complicated and is inconvenient for subsequent maintenance and inspection of the water pump assembly 70.

[0088] To solve the technical problems described above, please refer to Figures 5 and 6 In some embodiments, the housing 10 includes a casing 16 and a water receiving tray 32. It can be understood that the casing 16 may include the above-mentioned first casing 20, an air inlet chamber front casing and a casing body, wherein the water receiving tray 32 is connected to the casing 16, and the casing 16 cooperates with the water receiving tray 32 to define at least a portion of the heat exchange air duct.

[0089] The water receiving tray 32 includes a water collecting portion 322 and a drainage portion 323. The drainage portion 323 is located on one side of the water collecting portion 322 and is connected to the water collecting portion 322 to cooperate with defining a water receiving tank 321. The heat exchanger 60 is configured to be arranged above the water collecting portion 322. In this way, the condensed water flowing out of the heat exchanger 60 will first flow to the water collecting portion 322, and then flow from the water collecting portion 322 to the drainage portion 323 for subsequent drainage operations. In some structural forms, the bottom wall of the drainage portion 323 can be set lower than the bottom wall of the water collecting portion 322. On the one hand, it can make the water in the water collecting portion 322 flow to the drainage portion 323 for easy drainage, and on the other hand, it can also play a role in temporarily storing condensed water.

[0090] In some structural forms, the water collection part 322 and the drainage part 323 can be an integral component, which is convenient for the manufacture and production of the two, reduces the assembly process, and effectively improves the strength of the two. Of course, the two can also be separate structures and connected by welding, bonding or screwing, etc., which is not limited in this embodiment.

[0091] In this embodiment, the water pump assembly 70 is arranged beside the water receiving tray 32, that is, the water pump assembly 70 is arranged outside the water receiving tray 32 and beside the water receiving tray 32. The water pump assembly 70 includes a water pump 73, wherein the water pump 73 is connected to the drainage portion 323 to extract water in the drainage portion 323, so that the condensed water flowing from the water collecting portion 322 to the drainage portion 323 can be quickly extracted by the water pump 73 under the operation of the water pump 73, and finally discharged to the outside, thereby improving the condensed water discharge efficiency.

[0092] In order to improve the convenience of maintenance of the water pump assembly 70, the present embodiment sets the water pump assembly 70 to be exposed at the bottom of the housing 16. It is understandable that when the indoor unit 100 is installed on the ceiling, the ceiling is usually provided with an external return air port opposite to the return air port 14. Therefore, on the basis that the return air port 14 is opened at the bottom of the housing 16, when the water pump assembly 70 is exposed at the bottom of the housing 16, in the actual maintenance process, the staff can directly face the water pump assembly 70 through the external return air port along the bottom-up observation direction to perform maintenance and other operations on the water pump assembly 70, so that there is no need to set an additional external inspection port on the ceiling specifically for maintaining the water pump assembly 70. Moreover, by placing the water pump assembly 70 next to the drainage portion 323, firstly, when the staff inspects the water pump 73, there is no need to disassemble the water receiving tray 32, but they can directly operate the water pump assembly 70, thereby reducing steps, simplifying operations, reducing maintenance difficulty, and improving work efficiency. Secondly, it is helpful to shorten the distance between the water pump 73 and the drainage portion 323, thereby improving the suction and drainage efficiency.

[0093] Please refer to Figures 4 to 5 In some embodiments, the water pump assembly 70 is disposed in the middle of the housing 16, that is, along the front-to-back direction YY of the indoor unit 100, the water pump assembly 70 is disposed in the middle of the housing 16. It can be understood that the impeller 51 and the heat exchanger 60 are usually arranged at opposite ends of the housing 10, so that when the water pump assembly 70 is disposed in the middle of the housing 16, the center of gravity of the indoor unit 100 can be set more reasonably, the gravity distribution can be more uniform, and the compactness of the structure of the indoor unit 100 can be improved, and the overall layout of the unit can be optimized.

[0094] Of course, the present application is not limited thereto. In addition to being disposed in the middle of the housing 16 , the water pump assembly 70 can also be disposed at one end of the housing 16 in other embodiments.

[0095] In order to reduce the overall size of the indoor unit 100, please refer to Figures 4 to 5 In some embodiments, the bottom surface of the housing 16 is recessed upward to form an installation space 17, and the installation space 17 is open downward to form an opening. The water pump assembly 70 is accommodated in the installation space 17 and exposed through the opening to be exposed at the bottom of the housing 16.

[0096] In this way, compared with the form in which the water pump assembly 70 is arranged on the bottom surface of the casing 16, the form of this embodiment can accommodate the water pump assembly 70 in the installation space 17 formed by the depression of the bottom surface of the casing 16, so that the water pump assembly 70 can be installed using the space in the casing 16. This arrangement can not only reduce the overall size of the indoor unit 100, so as to reduce the size requirement of the installation space 17 of the indoor unit 100, but also can provide a certain protection effect on the water pump assembly 70 through the casing 16, thereby effectively extending the service life of the water pump assembly 70.

[0097] Please refer to Figures 4 to 5 In some structural forms, the motor assembly 53 further includes a motor bracket 531 . The motor bracket 531 is connected to the side panel 40 of the housing 16 and is used to carry the driving motor 533 , that is, the driving motor 533 is installed on the motor bracket 531 .

[0098] Among them, the water pump assembly 70 is arranged between the motor bracket 531 and the drainage part 323. It can be understood that the motor bracket 531 will be installed with a driving motor 533, and the drainage part 323 itself will have a certain weight. When the water pump assembly 70 is arranged to be located between the motor bracket 531 and the drainage part 323, it is beneficial to set the center of gravity of the indoor unit 100, so that the gravity distribution of the whole machine is more uniform, and it can also improve the compactness of the structure of the indoor unit 100 and optimize the layout of the whole machine. In addition, the driving motor 533 installed on the motor bracket 531 can be kept away from the drainage part 323 to prevent the condensed water in the drainage part 323 from contacting the driving motor 533, ensuring the safety of electricity use and meeting the safety requirements.

[0099] In order to improve the convenience of maintenance for staff, please refer to Figures 4 to 5 In some embodiments, the motor bracket 531, the water pump assembly 70 and the drainage portion 323 are arranged on the same side of the casing 16, that is, along the left-right direction XX of the casing 16, the motor bracket 531, the water pump assembly 70 and the drainage portion 323 can be arranged on the same side of the casing 16, for example, all arranged on the right side of the casing 16.

[0100] In the actual maintenance process, the staff needs to climb the ladder to approach the external return air outlet on the ceiling and then perform maintenance operations. If the motor bracket 531, the water pump assembly 70 and the drain part 323 are not located on the same side of the casing 16, the staff needs to climb down the ladder after repairing one of them, move the ladder and then climb the ladder to repair the other one, which greatly affects the maintenance efficiency. In this embodiment, by concentrating the motor bracket 531, the water pump assembly 70 and the drain part 323 on the same side of the casing 16, the staff can perform maintenance and inspection operations on the three components located in the concentrated area after climbing the ladder, without having to climb the ladder multiple times or move the ladder, thereby effectively improving the efficiency of maintenance and inspection.

[0101] See also Figure 5 In some embodiments, the indoor unit 100 further includes a support plate 41, and the support plate 41 is connected between the motor bracket 531 and the drainage portion 323, so that the support plate 41 can play a role in connecting the motor bracket 531 and the drainage portion 323, thereby achieving a supporting effect.

[0102] The relative position of the water pump assembly 70 and the support plate 41 can be configured as follows: along the up-down direction ZZ of the indoor unit 100, the support plate 41 is located above the water pump assembly 70. In this way, the positions of the support plate 41 and the water pump assembly 70 can be rationally arranged so that the two are spaced apart to avoid contact between the two. It can be understood that if the support plate 41 and the water pump assembly 70 are in abutment with each other, the vibration energy generated by the water pump assembly 70 during operation will be transmitted to the support plate 41, thereby generating a certain amount of noise. Therefore, the position setting of this embodiment can also achieve a noise reduction effect.

[0103] The above content introduces the advantages of the water pump assembly 70 of the present application, such as easy maintenance, reasonable layout of the indoor unit 100, and compactness of the whole machine, from the aspect of rational layout of the water pump assembly 70 of the whole indoor unit 100. The following content will give a detailed introduction to improving the stability of the installation of the water pump assembly 70.

[0104] Please refer to Figure 5 and Fig. 9In some embodiments, the water pump assembly 70 further includes a water pump box 71. The water pump box 71, as the fixed body of the water pump assembly 70, can be roughly columnar and can be made of plastic materials such as PP (Polypropylene, polypropylene), XPS (extruded polystyrene, extruded polystyrene foam), so that the water pump box 71 has the advantages of light weight and beautiful appearance. Among them, the water pump 73 is installed in the water pump box 71. Among them, the water pump box 71 defines a water pumping chamber 71a, the water pumping chamber 71a is connected to the water receiving tank 321, and the water pump 73 is accommodated in the water pumping chamber 71a to extract water flowing from the water receiving tank 321 to the water pumping chamber 71a. In this way, by accommodating the water pump 73 in the water pumping chamber 71a, the water pump box 71 can play a certain protective role on the water pump 73.

[0105] The water pump box 71 is provided with a first connection portion 78 and a second connection portion 79. It is understandable that the first connection portion 78 and the second connection portion 79 can be provided on adjacent sides of the water pump box 71. The first connection portion 78 is fixedly connected to the motor bracket 531, wherein the connection between the two can be a detachable connection form such as a snap connection or a threaded connection, or a non-detachable connection form such as welding or bonding, which is not limited in this embodiment.

[0106] The second connection portion 79 is fixedly connected to the housing 16, wherein the connection between the two may be a detachable connection such as a snap connection or a threaded connection, or may be a non-detachable connection such as welding or bonding, which is not limited in this embodiment.

[0107] To sum up, the water pump box 71 of the embodiment of the present application is provided with a first connecting portion 78 and a second connecting portion 79, and is fixedly connected to the motor bracket 531 and the housing 10 respectively through the first connecting portion 78 and the second connecting portion 79, so that when the staff inspects the water pump 73, there is no need to disassemble the water receiving tray 32, but can directly operate the water pump 73, thereby reducing steps, simplifying operations, reducing maintenance difficulty, and improving work efficiency. At the same time, the ceiling does not need to be provided with an inspection port corresponding to the position of the water receiving tray 32, thereby simplifying the construction of the ceiling.

[0108] Moreover, the arrangement of the first connection portion 78 and the second connection portion 79 can also ensure that there are at least two connections between the water pump box 71 and other components of the indoor unit 100, so that the water pump box 71 is more stable on the housing 10, thereby facilitating the improvement of the stability of the water pump 73 installed on the water pump box 71.

[0109] See also Figure 6In some embodiments, the indoor unit 100 further includes a connecting pipe 80. The shape of the connecting pipe 80 is not limited in this embodiment. The connecting pipe 80 can be made of materials such as plastic or resin for easy processing. One end of the connecting pipe 80 is connected to the drainage portion 323, and the other end is connected to the water pump box 71 to connect the drainage portion 323 with the water pumping chamber 71a, so that the interior of the drainage portion 323 and the water pumping chamber 71a form a communicating vessel structure through the connecting pipe 80. The condensed water in the drainage portion 323 can flow into the water pumping chamber 71a through the connecting pipe 80, and then be discharged from the water pumping chamber 71a under the suction action of the water pump 73.

[0110] In this way, by setting the connecting pipe 80, since the connecting pipe 80 has high flexibility, the setting of the water pump assembly 70 is more flexible and convenient for structural arrangement. At the same time, the water pump box 71 and the water receiving tray 32 are connected through the connecting pipe 80, and there is no need to realize direct connection between the water pump box 71 and the water receiving tray 32, which is conducive to reducing processing accuracy and operation difficulty, reducing production costs, improving production efficiency, and making the disassembly and assembly of the water pump assembly 70 more convenient, further improving work efficiency.

[0111] See also Figure 6 Furthermore, the water receiving pan 32 is provided with a first joint 325 connected to the drain portion 323, so that the condensed water in the drain portion 323 can be discharged through the first joint 325. In some structural forms, the first joint 325 is arranged in a tubular shape and is arranged close to the bottom wall of the drain portion 323, so as to be able to discharge as much water as possible in the drain portion 323, so as to reduce the amount of water in the drain portion 323.

[0112] The water pump box 71 is provided with a second joint 713 connected to the water pumping chamber 71a, and one end of the connecting pipe 80 is sleeved with the first joint 325, and the other end is sleeved with the second joint 713, so as to connect the drainage portion 323 with the water pumping chamber 71a. In this way, the condensed water discharged from the drainage portion 323 to the first joint 325 will flow through the connecting pipe 80 and the second joint 713 in sequence and then reach the water pumping chamber 71a.

[0113] The first connector 325 and the second connector 713 are arranged opposite to each other, thereby reducing the complexity of the pipeline and facilitating the structural arrangement.

[0114] See also Figure 7In some structural forms, the connecting pipe 80 includes a pipe body 81 and a clamp 83, one end of the pipe body 81 is sleeved on the first joint 325, and the other end is sleeved on the second joint 713. The joints at both ends of the pipe body 81 are roughly cylindrical, and the clamp 83 is annular and clamps at least one end of the pipe body 81 to improve the tightness of the connection between the pipe body 81 and the first joint 325 and the second joint 713. Optionally, the connecting pipe 80 includes two clamps 83, and the two clamps 83 are respectively clamped on one end of the pipe body 81 connected to the first joint 325 and one end of the pipe body 81 connected to the second joint 713.

[0115] The clamp 83 can be made of metal, which has high strength and stability and long service life, or the clamp 83 can be made of elastic rubber material, which has good elasticity to provide sufficient clamping force. Further, to ensure the stability of the clamp 83 relative to the pipe body 81, an annular groove 811 is provided at the end of the pipe body 81, and the clamp 83 is arranged in the annular groove 811.

[0116] To further improve the stability of the connecting pipe 80, please refer to Figure 8 In some structural forms, at least one of the first joint 325 and the second joint 713 is provided with a first limiting portion 3251, and at least one end of the connecting pipe 80 is provided with a second limiting portion 831. The limiting connection between the first limiting portion 3251 and the second limiting portion 831 can not only reduce or avoid the displacement of the pipe body 81 along its own axial direction, but also reduce the degree of deformation of some pipe bodies 81 made of easily deformable materials. In this way, by setting the limiting cooperation between the first limiting portion 3251 and the second limiting portion 831, the stability of the connecting pipe 80 can be improved, the service life can be extended, and the risk of water leakage can be reduced.

[0117] In the exemplary structure shown in the figure, the first limiting portion 3251 is a limiting column convexly arranged on the outer peripheral surface of the first joint 325, and the second limiting portion 831 is a limiting hook arranged at the end of the pipe body 81, and the limiting hook is hooked on the limiting column, so as to provide a force when the pipe body 81 is displaced or deformed to maintain the connection between the pipe body 81 and the first joint 325. Similarly, the first limiting portion 3251 and the second limiting portion 831 can also be arranged at the second joint 713 using the above structure, which will not be repeated here.

[0118] Among them, the limiting column can be integrally formed with the first joint 325 to improve processing efficiency and structural integrity, or the limiting column can also be separately set from the first joint 325. Similarly, the limiting hook and the tube body 81 can also be integrally formed or separately set, without limitation.

[0119] See also Figure 7Further, part of the structure of the clamp 83 forms the second position-limiting portion 831. For example, the clamp 83 can be made of metal, a part of which is arranged in the annular groove 811 to clamp the end of the pipe body 81, and the other part is bent to form a position-limiting hook. In this way, the second position-limiting portion 831 is combined with the clamp 83 in this embodiment, the number of parts is reduced, the structure is more compact, and the difficulty of assembly can be reduced, and the work efficiency can be improved.

[0120] See also Figure 6 In some embodiments, the connecting pipe 80 is a straight pipe, so that the structure of the connecting pipe 80 is relatively simple, easy to manufacture, and the connection operation is relatively simple, which improves work efficiency. Of course, in other embodiments of the present application, the connecting pipe 80 can also be a curved pipe, which is not limited here.

[0121] See also Fig. 9 In some embodiments, the first connection portion 78 is detachably fixedly connected to the motor bracket 531, for example, the two can be detachably connected in a form of snap connection, screw connection, etc., which is convenient for disassembly and firmly connected. The second connection portion 79 is detachably fixedly connected to the housing 10, for example, the two can be detachably connected in a form of snap connection, screw connection, etc., which is convenient for disassembly and firmly connected.

[0122] In this way, the present embodiment is arranged in a detachable form, which helps to improve the convenience of maintenance by the staff. When the water pump 73 needs to be repaired, the first connection part 78 can be disconnected from the motor bracket 531, and then the second connection part 79 can be disconnected from the shell 10, so that the water pump assembly 70 can be disassembled for subsequent maintenance or replacement of the water pump 73.

[0123] Moreover, in some indoor unit 100 models that do not have a water pump 73 when leaving the factory, if the user needs to install a water pump assembly 70 later, the water pump assembly 70 can be quickly installed on the indoor unit 100 through the detachable cooperation of the first connecting part 78 and the motor bracket 531, and the detachable cooperation of the second connecting part 79 and the shell 10, which is very convenient to operate.

[0124] See also Fig.11 In some embodiments, the water pump box 71 includes a first box body 711 and a second box body 712. The first box body 711 and the second box body 712 together define the outline of the entire water pump box 71, and in terms of the materials used by the first box body 711 and the second box body 712, the materials of the two can be the same, such as both are made of plastic materials. Of course, the materials of the two can also be different, such as one of the two is made of plastic material and the other is made of metal material, so as to reduce the overall weight of the water pump box 71 while ensuring that the water pump box 71 has a certain strength, and the embodiment of the present application is not limited to this.

[0125] The first box body 711 and the second box body 712 can be arranged along the vertical direction ZZ, and the two are connected and cooperate to define the pumping chamber 71a. It can be understood that the first box body 711 and the second box body 712 arranged separately are more conducive to production and disassembly, and are convenient for repairing the water pump 73, which can improve work efficiency.

[0126] Among them, the first box body 711 and the second box body 712 cooperate with each other to form the first connecting part 78 and the second connecting part 79. In this way, after the first box body 711 and the second box body 712 are connected and assembled, the first connecting part 78 and the second connecting part 79 are formed, and the two separate components of the first box body 711 and the second box body 712 can be used to ensure the structural strength of the first connecting part 78 and the second connecting part 79, thereby ensuring the connection strength between the first connecting part 78 and the motor bracket 531, and the connection strength between the second connecting part 79 and the shell 10.

[0127] Please refer to Figures 9 to 11 In some structural forms, the motor bracket 531 may be a cover structure. Specifically, the motor bracket 531 includes a first cover 5311 and a second cover 5313. The first cover 5311 and the second cover 5313 are covered to enclose a fixed cavity for accommodating the driving motor 533. At least one of the first cover 5311 and the second cover 5313 is connected to the housing 16.

[0128] The first cover 5311 and the second cover 5313 cooperate to clamp and fix the first connection part 78. It can be understood that the clamping and fixing of the first connection part 78 by two covers is more conducive to improving the clamping stability of the motor bracket 531 on the first connection part 78, making the connection of the water pump box 71 more stable.

[0129] Please refer to Figures 9 to 11 In some embodiments, the first cover 5311 is fixedly connected to the housing 10, and the second cover 5313 is detachably connected to the first cover 5311 to clamp or release the first connection portion 78. In this way, by setting the connection between the first cover 5311 and the second cover 5313 as a detachable connection, in the actual disassembly process, when the first connection portion 78 and the motor bracket 531 need to be disassembled, it is only necessary to separate the first cover 5311 from the second cover 5313, that is, to disassemble and remove the first cover 5311, and then the first connection portion 78 can be disassembled from the motor bracket 531, and then the water pump assembly 70 can be taken out, which is very convenient to operate.

[0130] In order to further improve the efficiency of the connection between the first connecting portion 78 and the motor bracket 531, please refer to Figures 9 to 11In some embodiments, the first connection portion 78 includes a first sub-connection portion 781 and a second sub-connection portion 782 .

[0131] The first sub-connecting portion 781 is disposed on the first box body 711, and the second sub-connecting portion 782 is disposed on the second box body 712, and cooperates with the first sub-connecting portion 781 to form a positioning opening 7813, wherein a positioning column 5311b is provided on the surface of the first cover body 5311 facing the second cover body 5313, and the positioning column 5311b is passed through the positioning opening 7813.

[0132] A positioning column 5311b is provided on the surface of the first cover body 5311 facing the second cover body 5313, and the positioning column 5311b is passed through the positioning port 7813. In this way, in actual operation, the first cover body 5311 and the first connecting portion 78 can be positioned by the positioning cooperation between the positioning column 5311b and the positioning port 7813, and then the second cover body 5313 is covered on the first cover body 5311 to clamp and fix the connecting plate 781. In this way, it will be more convenient during the assembly process, and the connection position will be more accurate, thereby improving the clamping effect of the first cover body 5311 and the second cover body 5313 on the first connecting portion 78.

[0133] Please refer to Figures 9 to 11 Furthermore, the first connecting portion 78 includes a first connecting plate 7811 and a first enclosure 7812 connected to the outer side of the first connecting plate, and the first enclosure 7812 cooperates with the first connecting plate 7811 to form a positioning groove 7814.

[0134] The second sub-connecting portion 782 includes a second connecting plate 7821 and a second surrounding frame 7822 connected to the outer side of the second connecting plate 7821 . The second connecting plate 7821 is fitted with the first connecting plate 7811 and together form a positioning opening 7813 . The second surrounding frame 7822 is fitted with the first surrounding frame 7811 .

[0135] The surface of the first cover 5311 facing the second cover 5313 is further provided with a positioning boss 5311c, and the positioning column 5311b is penetrated through the positioning boss 5311c, wherein the positioning boss 5311c is used to be embedded in the positioning groove 7814. In this way, in the actual operation process, the positioning boss 5311c and the positioning groove 7814 can be positioned and matched first, and then the positioning column 5311b and the positioning opening 7813 can be positioned and matched, so that the first cover 5311 and the second cover 5313 can clamp and fix the first connecting portion 78, so that it will be more convenient in the assembly process, and the connection position will be more accurate, thereby improving the clamping effect of the first cover 5311 and the second cover 5313 on the first connecting portion 78.

[0136] For further information, see Fig.11 , the housing 16 has a side wall 161 along the left-right direction XX of the indoor unit 100, that is, the side wall 161 is the wall of the side panel 40 of the first housing 20. A through hole is provided on the side wall 161, and the second connection part 79 includes a first pin 7911 and a second pin 7912, the first pin 7911 is provided on the first box body 711, and the second pin 7912 is provided on the second box body 712. Among them, the first pin 7911 and the second pin 7912 are provided in the through hole to be plugged into the side wall 161 of the housing 16. It can be understood that the first pin 7911 and the second pin 7912 can be semi-cylindrical in shape, and the two can be combined into a cylindrical shape, so that the second connection part 79 is cylindrical.

[0137] In this way, this embodiment facilitates the connection operation between the second connecting part 79 and the housing 16 by plugging the connecting bracket into the side wall 161 of the housing 16. In actual operation, the second connecting part 79 can be aligned with the through hole first, and then the first pin 7911 and the second pin 7912 can be inserted into the through hole. Then, the operation of plugging the second connecting part 79 into the housing 16 can be completed, which is stable and fast.

[0138] It can be understood that, with the first cover body 5311 and the second cover body 5313 of the motor bracket 531 clamping the first connecting part 78, the motor bracket 531 can basically fix the water pump box 71. Furthermore, the second connecting part 79 is inserted into the side wall 161 of the casing 16. In this way, the water pump box 71 is fixed at two positions, which can effectively improve the fixing effect of the water pump box 71. In addition, the second connecting part 79, based on being passed through the through hole, can further prevent the water pump box 71 from flipping over, which is beneficial to improving the stability of the installation of the water pump box 71. During the actual disassembly and assembly process, taking the disassembly of the water pump assembly 70 as an example, the second cover body 5313 can be disassembled and removed. At this time, the second cover body 5313 and the first cover body 5311 release the clamping of the first connecting part 78. Then, the second connecting part 79 is pulled out of the through hole to realize the disassembly of the water pump assembly 70. At the same time, during disassembly, there is no need to rely on external disassembly tools, for example, there is no need to use disassembly tools such as screwdrivers for disassembly on the basis of non-threaded connections, and the operation is very convenient.

[0139] Please refer to Figures 13 to 15 In some embodiments, the water pump assembly further includes a vibration damper 77. The water pump 73 includes a pump body 731 and a connecting leg 732. The pump body 731 is used to extract water from the water pumping cavity 71a. The connecting leg 732 is connected to the outer side of the pump body 731. The vibration damper 77 is sleeved on the connecting leg 732.

[0140] The vibration damping member 77 can be a rubber member so that it has excellent elasticity and vibration absorption performance. Of course, the vibration damping member 77 can also be other plastic members with vibration reduction function, which is not limited in the embodiment of the present application. It can be understood that during the actual operation of the pump body 731 of the water pump 73, the pump body 731 generates a certain degree of vibration, which will cause the connecting foot 732 to collide with the water pump box 71. Based on this, the vibration damping member 77 is sleeved on the connecting foot 732, which helps to reduce the vibration and impact of the connecting foot 732 on the water pump box 71 and reduce the generation of noise. At the same time, it can avoid the hard contact between the connecting foot 732 and the water pump box 71 to extend the service life of the connecting foot 732 and the water pump box 71.

[0141] The first box body 711 is provided with a first fixing portion 7112 , and the second box body 712 is provided with a second fixing portion 7124 . The first fixing portion 7112 can cooperate with the second fixing portion 7124 to fix the vibration damping member 77 , so as to fix the pump body 731 in the water pumping chamber 71 a .

[0142] In this way, based on the setting of the vibration damping member 77, the vibration energy transmitted from the connecting foot 732 to the water pump box 71 can be absorbed to reduce the generation of noise, and thus the vibration energy transmitted to the side panel 40 of the first housing 20 of the indoor unit 100 can also be reduced. At the same time, the vibration damping member 77 can also avoid the hard contact between the connecting foot 732 and the water pump box 71, so as to extend the service life of the connecting foot 732 and the water pump box 71. Secondly, in the actual installation process, while connecting the first box body 711 and the second box body 712, the first fixing part 7112 and the second fixing part 7124 can cooperate to fix the vibration damping member 77, so as to fix the pump body 731 in the water pumping chamber 71a. In this way, there is no need to set up other fixing steps for connecting the connecting foot 732 and the water pump box 71, so that the installation convenience is improved while ensuring a better fixing effect.

[0143] See also Fig.17 In some embodiments, the first fixing portion 7112 cooperates with the second fixing portion 7124 to form a fixing groove 71c with one side open, wherein at least a portion of the vibration damping member 77 extends into the fixing groove 71c, and the groove wall surface of the fixing groove 71c is used to abut and fix the vibration damping member 77.

[0144] It can be understood that the fixing groove 71c includes a groove top wall and a groove bottom wall that are arranged opposite to each other, and a groove side wall connected between the groove top wall and the groove bottom wall, wherein the groove top wall and the groove bottom wall can abut against two opposite surfaces of the fixed vibration damping member 77 along the thickness direction thereof, and the groove side wall can abut against the side surface of the fixed vibration damping member 77. In this way, the abutting and fixing area of ​​the first fixing portion 7112, the second fixing portion 7124 and the vibration damping member 77 can be increased, so as to enhance the fixing effect of the vibration damping member 77 and reduce the possibility of the vibration damping member 77 being disconnected from the first fixing portion 7112 and the second fixing portion 7124.

[0145] See also Fig.17 Further, a first half groove 7112a is formed on the surface of the first fixing portion 7112 facing the second fixing portion 7124, and a second half groove 7124a is formed on the surface of the second fixing portion 7124 facing the first fixing portion 7112. When the first box body 711 and the second box body 712 are connected, the first half groove 7112a is connected to the second half groove 7124a to form a fixing groove 71c.

[0146] It can be understood that the first half groove 7112a and the second half groove 7124a each occupy half the volume of the fixed groove 71c. On the basis of fixing the vibration damper 77 together through the two half grooves, the rebound force generated by the vibration damper 77 is evenly dispersed on the first fixed part 7112 and the second fixed part 7124. At the same time, it also facilitates the docking of the first fixed part 7112 and the second fixed part 7124, thereby improving the installation convenience.

[0147] See also Fig.13 In some structural forms, one of the first box body 711 and the second box body 712 is provided with a first clamping portion 7111 , and the other is provided with a second clamping portion 7121 .

[0148] The first clamping portion 7111 and the second clamping portion 7121 are adapted to be clamped together, so that the first box body 711 is clamped with the second box body 712. In this way, the assembly steps of the first box body 711 and the second box body 712 can be simplified, and no additional disassembly tools are required for disassembly, which improves the convenience of disassembly between the first box body 711 and the second box body 712, and at the same time can ensure the connection stability between the two.

[0149] It can be understood that during the installation of the water pump 73 by the water pump box 71, since there is no threaded connection between the water pump 73 and the water pump box 71, the water pump assembly 70 can be assembled without the need for additional disassembly tools throughout the process. Then, during the assembly of the water pump assembly 70 in the body, the first connecting portion 78 and the second connecting portion 79 respectively have no threaded connection with the motor bracket 531 and the housing 10. Therefore, there is no need for additional disassembly tools throughout the process, and the operation is very convenient and quick.

[0150] Please continue reading Fig.13 Further, the first clamping portion 7111 includes a root segment 7111a and a hook segment 7111b, one end of the root segment 7111a is connected to the first box body 711 or the second box body 712, and the other end is connected to the hook segment 7111b.

[0151] The second clamping portion 7121 is provided with a clamping groove 7121a, the root section 7111a is inserted into the clamping groove 7121a, and the hook section 7111b abuts against the back of the second clamping portion 7121. In this way, the root section 7111a is inserted into the clamping groove 7121a, which is very convenient to operate, and the hook section 7111b abuts against the back of the second clamping portion 7121, which can ensure the connection stability between the first clamping portion 7111 and the second clamping portion 7121.

[0152] In actual use, it is also found that due to the low temperature of the condensed water, when the condensed water flows in the water pumping chamber 71a, moisture in the external air may condense, causing condensation.

[0153] Based on this, please refer to Figure 11 to Figure 12 In some embodiments, the indoor unit 100 further includes a heat preservation structure 90, and the heat preservation structure 90 may be heat preservation cotton, which is low in cost and convenient to assemble. The heat preservation structure 90 wraps at least part of the outer wall surface of the water pump box 71, for example, it may wrap at least one of the outer peripheral side surface and the bottom surface of the water pump box 71, and the embodiment of the present application is not limited to this. In this way, the wrapping setting of the heat preservation structure 90 helps to reduce the heat exchange between the external air and the condensed water located in the pumping chamber 71a, thereby reducing the condensation phenomenon or avoiding the condensation phenomenon, thereby preventing the condensation phenomenon from causing water droplets to drip into the installation environment of the indoor unit 100 and causing the installation environment to become moldy.

[0154] Please refer to Figures 11 to 13 Furthermore, the second box body 712 is located below the first box body 711, and the pump body 731 has a water pumping port 7311 connected to the water pumping cavity 71a, and the water pumping port 7311 is arranged toward the second box body 712. It can be understood that the second box body 712 constructs the side wall and the bottom wall of the water pumping cavity 71a, and the first box body 711 constructs the top wall of the water pumping cavity 71a, that is, the second box body 712 will serve as the main structural part of the water pump box 71 for storing condensed water. At the same time, the arrangement of the water pumping port 7311 toward the second box body 712 will help the pump body 731 to perform water pumping operations.

[0155] Since the second box body 712 is the main structural part of the water pump box 71 for storing condensed water, condensation is easy to occur in the second box body 712. Therefore, in this embodiment, the heat preservation structure 90 wraps at least part of the outer wall surface of the second box body 712, for example, it can wrap at least one of the outer peripheral side surface and the bottom surface of the second box body 712. This embodiment of the present application does not limit this. In this way, it can effectively reduce the heat exchange and reduce or avoid the occurrence of condensation.

[0156] See also Fig.18In some embodiments, the vibration damper 77 includes a vibration damper body 771 and a plurality of first abutting ribs 772. The vibration damper body 771 is the main part of the vibration damper 77, and is used to sleeve the connecting foot 732, that is, the vibration damper body 771 is formed with a sleeve groove 771a, the connecting foot 732 is arranged in the sleeve groove 771a, and the vibration damper body 771 plays a major vibration damping effect. The plurality of first abutting ribs 772 are all roughly U-shaped, and the plurality of first abutting ribs 772 are connected to the outer surface of the vibration damper body 771 at intervals, and are used to abut against at least one of the first fixing portion 7112 and the second fixing portion 7124. In this way, the contact form between the first abutting rib 772 and at least one of the first fixing portion 7112 and the second fixing portion 7124 can be transformed from surface contact to line contact, so that the deformation degree of the vibration damper 77 is improved to achieve a better vibration damping effect.

[0157] See also Fig.18 Furthermore, the vibration damper 77 further includes a plurality of second abutting ribs 773, which may be substantially U-shaped, and are spaced apart and connected to the groove wall surface of the sleeve groove 771a to abut against the connecting leg 732. In this way, the contact form between the second abutting ribs 773 and the connecting leg 732 can be transformed from surface contact to line contact, thereby improving the deformation degree of the vibration damper 77 to achieve a better vibration damping effect.

[0158] Please refer to Figures 13 to 15 In some embodiments, the first box body 711 is provided with a drain pipe 714, the drain pipe 714 defines a drainage channel, and the pump body 731 has a water outlet 7313. It is understandable that when the pump body 731 is running, the water drawn by the pump body 731 to the water pumping chamber 71a will be discharged to the water outlet channel through the water outlet 7313, and if the pump body 731 stops running and there is more water in the external pipeline, it is easy to cause water to flow back into the water pumping chamber 71a through the drainage channel, thereby causing water leakage in the indoor unit 100.

[0159] Based on this, the water pump assembly 70 of this embodiment further includes a water pipe 76 and a check valve 75. The water pipe 76 may be made of a rubber water pipe, which has the advantages of light weight and good heat preservation performance, and the check valve 75 may be a duckbill valve, which has good non-return performance and good flow regulation performance. This embodiment does not specifically limit the specific types of the water pipe 76 and the check valve 75.

[0160] The opposite ends of the water pipe 76 are respectively connected to the water outlet 7313 and the drainage channel, and the check valve 75 is arranged inside the water pipe 76 to allow the water outlet 7313 to be unidirectionally connected to the drainage channel. In this way, the water flowing back from the drainage channel to the water outlet 7313 can be controlled, and the backflow rate can be reduced or prevented, thereby reducing the possibility of the pumping chamber 71a being backflowed by condensed water, thereby avoiding water leakage or operation failure of the indoor unit 100 and improving safety.

[0161] Please refer to Figure 15 to Figure 16 Furthermore, the water pipe 76 includes a first pipe section 761 and a second pipe section 762, one end of the first pipe section 761 is connected to the water outlet 7313, one end of the second pipe section 762 is connected to the end of the first pipe section 761 away from the water outlet 7313, and the other end is connected to the drainage channel.

[0162] The inner diameter of the second pipe section 762 is larger than the inner diameter of the first pipe section 761, so that a step portion 763 is formed at the joint with the first pipe section 761, and the step portion 763 can be arranged to extend along the circumferential direction of the water pipe 76. The check valve 75 is arranged in the second pipe section 762, wherein a through-port is formed in the second pipe section 762, and the check valve 75 is interference-fitted with the through-port, and the check valve 75 is limited by the step portion 763, so that the check valve 75 is stably installed in the water pipe 76.

[0163] Of course, the present application is not limited thereto. In other embodiments, the check valve 75 may be securely installed in the water pipe 76 only by interference fit with the second pipe section 762 .

[0164] See also Fig.13 In some embodiments, the water pump assembly 70 further includes a water level switch 74, which is disposed in the pumping chamber 71a to sense water level changes and send a signal to the controller of the indoor unit 100, so that the controller controls the operation of the pump body 731. For example, the water level switch 74 is disposed in the pumping chamber 71a to sensitively reflect water level changes in the pumping chamber 71a, so that the controller can control the start and stop of the pump body 731.

[0165] Optionally, the water level switch 74 includes a float 741 disposed in the pumping chamber 71a and capable of floating and changing with the water level. The water level switch 74 is used to generate a signal for the pump body 731 to operate when the water level reaches a preset water level, triggered by the float 741. Exemplarily, when the water level is low, the float 741 is at a low position, and the water level switch 74 continuously feeds back a low level to the controller, and when the water level reaches a set height, the float 741 is at a high position, and the water level switch 74 feeds back a high level to the controller, and at this time the controller controls the pump body 731 to operate.

[0166] Of course, the water level switch 74 may also adopt other optional structural forms, under the premise of being able to reflect the water level changes in the pumping chamber 71a, and the embodiment of the present application does not limit this.

[0167] See also Fig.19 In some embodiments, the indoor unit 100 further includes a water outlet pipe 103, one end of which is connected to the drain pipe 714, and the other end can be used to connect to a water collecting device or the outside world to discharge the condensed water. It is worth noting that the water outlet pipe 103 is extended from one end connected to the drain pipe 714 to the other end away from the drain pipe 714 from top to bottom. For example, in order to facilitate the structural arrangement and reduce the material stress, the water outlet pipe 103 can extend in an arc shape and pass through the housing 10 to be connected to the external pipeline. As a result, the part of the water outlet pipe 103 close to the drain pipe 714 is lower than the drain pipe 714. It can be understood that when the condensed water in the water receiving tray 32 is completely discharged or the water level of the condensed water in the water receiving tray 32 is reduced to a certain height, the water pump assembly 70 will stop working. Due to the height difference between the drain pipe 714 and the main part of the water outlet pipe 103, the condensed water in the water outlet pipe 103 can be effectively reduced or avoided to flow back, reducing the risk of leakage.

[0168] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0169] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An indoor unit, characterized in that: include: A housing, defining a heat exchange air duct therein, comprising a casing and a water receiving tray connected to the casing, wherein the water receiving tray comprises a water collecting portion and a water draining portion communicating with each other, the water collecting portion cooperates with the casing to define at least a portion of the heat exchange air duct, and the water draining portion is located on one side of the water collecting portion; A heat exchanger is arranged above the water collecting part; as well as A water pump assembly is arranged beside the drainage part, the water pump assembly includes a water pump, and the water pump is connected to the drainage part to extract water in the drainage part; Wherein, the water pump assembly is exposed at the bottom of the casing.

2. The indoor unit according to claim 1, characterized in that: The water pump assembly is arranged in the middle of the casing.

3. The indoor unit according to claim 2, characterized in that: The bottom surface of the housing is recessed upward to form an installation space, and the installation space is open downward to form an opening; Wherein, the water pump assembly is accommodated in the installation space and is exposed through the opening.

4. The indoor unit according to claim 2, characterized in that: It also includes a motor assembly and a wind wheel, wherein the wind wheel is arranged in the heat exchange air duct, the motor assembly includes a motor bracket and a drive motor installed on the motor bracket, the motor bracket is connected to the housing, and the drive motor is drivingly connected to the wind wheel; Wherein, the water pump assembly is arranged between the motor bracket and the drainage part.

5. The indoor unit according to claim 4, characterized in that: The motor bracket, the water pump assembly and the drainage portion are arranged on the same side of the casing.

6. The indoor unit according to claim 4, characterized in that: The water pump assembly further includes a water pump box, wherein a water pump chamber is defined in the water pump box, the water pump chamber is communicated with the drainage portion, and the water pump is accommodated in the water pump chamber to extract water flowing from the drainage portion into the water pump chamber; Wherein, the water pump box is provided with a first connecting portion and a second connecting portion, and the first connecting portion is fixedly connected to the motor bracket, and the second connecting portion is fixedly connected to the casing.

7. The indoor unit according to claim 6, characterized in that: The first connection portion is detachably fixedly connected to the motor bracket, and the second connection portion is detachably fixedly connected to the housing.

8. The indoor unit according to claim 7, characterized in that: The water pump box comprises a first box body and a second box body, wherein the first box body and the second box body are connected and cooperate to define the water pumping cavity; Wherein, the first box body and the second box body cooperate with each other to form the first connecting portion and the second connecting portion.

9. The indoor unit according to claim 8, characterized in that: The motor bracket includes a first cover body and a second cover body covering each other, at least one of the first cover body and the second cover body is connected to the housing, wherein the first cover body and the second cover body cooperate to clamp and fix the first connecting portion.

10. The indoor unit according to claim 9, characterized in that: The first connecting portion comprises: A first sub-connecting portion, provided on the first box body; and A second sub-connecting portion, provided on the second box body, and cooperates with the first sub-connecting portion to form a positioning opening; Wherein, a positioning column is provided on the surface of the first cover body facing the second cover body, and the positioning column passes through the positioning opening.

11. The indoor unit according to claim 10, characterized in that: The first sub-connecting portion includes a first connecting plate and a first surrounding frame connected to the outer side of the first connecting plate, wherein the first surrounding frame cooperates with the first connecting plate to form a positioning groove; The second sub-connecting portion includes a second connecting plate and a second surrounding frame connected to the outer side of the second connecting plate, the second connecting plate is fitted with the first connecting plate and forms the positioning opening together, and the second surrounding frame is fitted with the first surrounding frame; A positioning boss is further provided on the surface of the first cover body facing the second cover body, and the positioning column is passed through the positioning boss, wherein the positioning boss is used to be embedded in the positioning groove.

12. The indoor unit according to any one of claims 8 to 11, characterized in that: The housing has a side wall, and a through hole is provided on the side wall, the second connection portion includes a first pin and a second pin, the first pin is arranged on the first box body, and the second pin is arranged on the second box body; Wherein, the first plug pin and the second plug pin are inserted into the through hole to be plugged into the side wall of the housing.

13. The indoor unit according to any one of claims 8 to 11, characterized in that: The water pump assembly further includes a vibration damping member, and the water pump includes a pump body and a connecting foot, the pump body is used to extract water in the water pumping cavity, the connecting foot is connected to the outside of the pump body, and the vibration damping member is sleeved on the connecting foot; The first box body is provided with a first fixing portion, and the second box body is provided with a second fixing portion. The first fixing portion can cooperate with the second fixing portion to fix the vibration damping member so as to fix the pump body in the water pumping cavity.

14. The indoor unit according to claim 13, characterized in that: The first fixing portion cooperates with the second fixing portion to form a fixing groove with one side open; Wherein, at least a portion of the vibration damping member extends into the fixing groove, and a groove wall surface of the fixing groove is used to abut and fix the vibration damping member.

15. The indoor unit according to claim 14, characterized in that: A first half groove is formed on a surface of the first fixing portion facing the second fixing portion, and a second half groove is formed on a surface of the second fixing portion facing the first fixing portion; Wherein, when the first box body and the second box body are in a connected state, the first half groove is communicated with the second half groove to form the fixing groove.

16. The indoor unit according to claim 15, characterized in that: The vibration damping member comprises: A vibration-damping body is formed with a sleeve groove, and the connecting foot is arranged in the sleeve groove; and A plurality of first abutment ribs are connected to the outer surface of the vibration-damping body at intervals and are used to abut against the groove wall surface of the first half groove and the groove wall surface of the second half groove.

17. The indoor unit according to claim 16, characterized in that: The vibration damping member further comprises a plurality of second abutment ribs, and the plurality of second abutment ribs are connected to the groove wall surface of the sleeve groove at intervals so as to abut against the connection foot.

18. The indoor unit according to any one of claims 8 to 11 and 14 to 17, characterized in that: One of the first box body and the second box body is provided with a first clamping portion, and the other is provided with a second clamping portion; The first clamping portion and the second clamping portion are adapted to be clamped together, so that the first box body and the second box body are clamped together.

19. The indoor unit according to claim 18, characterized in that: The first clamping portion includes a root section and a hook section, one end of the root section is connected to the first box body or the second box body, and the other end is connected to the hook section; Wherein, the second clamping portion is provided with a clamping groove, the root section is inserted into the clamping groove, and the hook section abuts against the back side of the second clamping portion.

20. The indoor unit according to any one of claims 6-11, 14-17, and 19, characterized in that: The indoor unit further comprises a connecting pipe, one end of which is connected to the drainage part, and the other end of which is connected to the water pump box, so as to connect the drainage part and the water pumping chamber.

21. The indoor unit according to claim 20, characterized in that: The water receiving tray is provided with a first joint communicating with the drainage part, the water pump box is provided with a second joint communicating with the water pumping chamber, one end of the connecting pipe is sleeved with the first joint, and the other end is sleeved with the second joint; Wherein, the first connector and the second connector are arranged opposite to each other.

22. The indoor unit according to claim 21, characterized in that: At least one of the first joint and the second joint is provided with a first limiting portion, and at least one end of the connecting pipe is provided with a second limiting portion; The first limiting portion is connected to the second limiting portion in a limiting manner to resist displacement or deformation of the connecting pipe along its own axial direction.

23. The indoor unit according to claim 22, characterized in that: The first limiting part is a limiting column, and the second limiting part is a limiting hook, and the limiting hook is hooked on the limiting column; And / or, the connecting pipe comprises a pipe body and a clamp, the clamp is provided at at least one end of the pipe body, and at least one of the clamps is provided with the second limiting portion; And / or, the connecting pipe is a straight pipe.

24. The indoor unit according to any one of claims 4-11, 14-17, 19, 21-23, characterized in that: The indoor unit further comprises a support plate connected between the motor bracket and the drainage portion; Wherein, the support plate is located above the water pump assembly.

25. A HVAC equipment, characterized in that: include: Outdoor unit; and The indoor unit according to any one of claims 1 to 24, wherein the indoor unit is connected to the outdoor unit via a pipeline.

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