Indoor unit and heating and ventilation equipment

Abstract

The indoor unit comprises a shell, a motor assembly, a wind wheel and a water pump assembly, a heat exchange air duct is formed in the shell, a water receiving groove is formed in the heat exchange air duct, the wind wheel is arranged in the heat exchange air duct, and the motor assembly comprises a motor support and a driving motor installed on the motor support; the motor support is connected with the shell, the driving motor is in transmission connection with the wind wheel, the water pump assembly comprises a water pump box and a water pump, a water pumping cavity is defined in the water pump box and communicated with the water receiving groove, and the water pump is contained in the water pumping cavity to pump water flowing into the water pumping cavity from the water receiving groove. The first connecting part is fixedly connected with the motor support, and the second connecting part is fixedly connected with the shell. According to the technical scheme, the water pump can be conveniently disassembled, assembled and overhauled, the working efficiency is improved, and the stability of the water pump assembly on the shell is improved.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning (HVAC) technology, and in particular to an indoor unit and HVAC equipment using the indoor unit. Background Technology

[0002] A heating, ventilation, and air conditioning (HVAC) system generally consists of two parts: an indoor unit and an outdoor unit. The indoor and outdoor units are connected by pipes, allowing the indoor unit to deliver airflow to regulate the temperature and humidity of the environment.

[0003] The indoor unit has a drip tray and a heat exchanger installed above it. The drip tray is used to collect condensate produced during the operation of the heat exchanger. To facilitate the drainage of condensate, some indoor units are also equipped with a water pump to draw the condensate out of the drip tray.

[0004] In related technologies, the water pump is installed in the water collection tray. Based on this, in addition to the external return air vent that is opposite to the return air vent of the indoor unit, an additional maintenance port corresponding to the location of the water collection tray needs to be installed on the ceiling. This makes the construction complicated and makes it inconvenient to maintain and inspect the water pump in the future. Summary of the Invention

[0005] This application provides an indoor unit and HVAC equipment that enables easy disassembly and maintenance of the water pump, improves work efficiency, and enhances the stability of the water pump assembly on the housing.

[0006] In a first aspect, embodiments of this application provide an indoor unit, which includes a housing, a motor assembly, a fan wheel, and a water pump assembly. A heat exchange air duct is formed inside the housing, and a water receiving tank is provided inside the heat exchange air duct.

[0007] The impeller is disposed in the heat exchange duct, and the motor assembly includes a motor bracket and a drive motor mounted on the motor bracket. The motor bracket is connected to the housing, and the drive motor is connected to the impeller via a transmission.

[0008] The water pump assembly includes a water pump box and a water pump. The water pump box defines a water pumping chamber, which is connected to the water receiving tank. The water pump is housed in the water pumping chamber to draw water flowing from the water receiving tank into the water pumping chamber.

[0009] The water pump box is provided with a first connecting part and a second connecting part, wherein the first connecting part is fixedly connected to the motor bracket and the second connecting part is fixedly connected to the housing.

[0010] In some embodiments, the first connecting portion is detachably fixedly connected to the motor bracket, and the second connecting portion is detachably fixedly connected to the housing.

[0011] In some embodiments, the pump box includes a first box body and a second box body, the first box body and the second box body being connected and cooperating to define the pumping chamber;

[0012] The first box and the second box cooperate to form the first connecting part and the second connecting part.

[0013] In some embodiments, the motor bracket includes a first cover and a second cover that fit together, at least one of the first cover and the second cover being connected to the housing, wherein the first cover and the second cover cooperate to clamp and fix the first connecting portion.

[0014] In some embodiments, the first connecting portion includes a first sub-connecting portion and a second sub-connecting portion, the first sub-connecting portion being disposed on the first housing, the second sub-connecting portion being disposed on the second housing, and cooperating with the first sub-connecting portion to form a positioning opening;

[0015] The first cover has a positioning post on its surface facing the second cover, and the positioning post passes through the positioning opening.

[0016] In some embodiments, the first sub-connection portion includes a first connecting plate and a first enclosure connected to the outside of the first connecting plate;

[0017] The second sub-connecting part includes a second connecting plate and a second surrounding frame connected to the outside of the second connecting plate. The second connecting plate is fitted with the first connecting plate and together forms the positioning opening. The second surrounding frame is fitted with the first surrounding frame.

[0018] In some embodiments, the first frame and the first connecting plate cooperate to form a positioning groove, and the surface of the first cover facing the second cover is also provided with a positioning boss, and the positioning post passes through the positioning boss.

[0019] The positioning boss is used to be embedded in the positioning groove.

[0020] In some embodiments, the first cover is fixedly connected to the housing, and the second cover is detachably connected to the first cover to clamp or release the first connection portion.

[0021] In some embodiments, the first cover is provided with a connecting groove, and the indoor unit further includes a locking structure, which includes a sliding body and a locking body;

[0022] The sliding body is slidably connected to the second cover, and the locking body is connected to the sliding body and can be inserted into or disengaged from the connecting groove along the sliding direction of the sliding body under the action of the sliding body, so that the second cover and the first cover can be connected or disconnected.

[0023] In some embodiments, the housing includes a casing, the motor bracket is connected to the casing, the casing has a side wall and a through hole is formed on the side wall, and the second connection part includes a first pin and a second pin, the first pin is disposed in the first housing and the second pin is disposed in the second housing;

[0024] The first pin and the second pin pass through the through hole to be inserted into the side wall of the housing.

[0025] In some embodiments, a deformation gap is formed between the first pin and the second pin.

[0026] In some embodiments, at least a portion of the outer peripheral surface of the first pin and at least a portion of the outer peripheral surface of the second pin are formed with guide surfaces, which are used to guide the first pin and the second pin to engage with the sidewall of the via as they pass through the via.

[0027] In some embodiments, the vias include a plurality of vias, which are spaced apart on the sidewall;

[0028] The second connecting portion includes multiple portions, and each of the multiple second connecting portions corresponds to one of the multiple vias.

[0029] In some embodiments, one of the first housing and the second housing is provided with a first latching portion, and the other is provided with a second latching portion;

[0030] The first snap-fit ​​portion and the second snap-fit ​​portion are adapted to snap-fit ​​together so that the first box body and the second box body snap-fit ​​together.

[0031] In some embodiments, the first snap-fit ​​portion includes a root segment and a hook segment, one end of the root segment is connected to the first housing or the second housing, and the other end is connected to the hook segment;

[0032] The second snap-fit ​​part is provided with a snap-fit ​​groove, the root segment is inserted into the snap-fit ​​groove, and the hook segment abuts against the back of the second snap-fit ​​part.

[0033] In some embodiments, the housing includes a casing and a water receiving tray connected to the casing, the casing being connected to the motor bracket and cooperating with the water receiving tray to define at least a portion of the heat exchange air duct, and the water receiving tray having the water receiving groove.

[0034] The indoor unit also includes a connecting pipe, one end of which is connected to the water receiving tray and the other end of which is connected to the water pump box to connect the water receiving tank and the water pumping chamber.

[0035] Secondly, embodiments of this application provide a heating, ventilation, and air conditioning (HVAC) device, which includes an outdoor unit and an indoor unit as described above, wherein the indoor unit and the outdoor unit are connected by pipes.

[0036] The indoor unit and HVAC equipment based on the embodiments of this application are provided with a first connecting part and a second connecting part in the water pump box. The first connecting part and the second connecting part are respectively fixedly connected to the motor bracket and the housing. In this way, when the staff inspects the water pump, they do not need to disassemble the water tray, but can directly operate the water pump, thereby reducing steps, simplifying operation, reducing maintenance difficulty, and improving work efficiency. At the same time, there is no need to set up an inspection port corresponding to the water tray position on the ceiling, simplifying the construction of the ceiling.

[0037] Furthermore, the arrangement of the first and second connecting parts allows for at least two connection points between the water pump box and other components of the indoor unit, making the water pump box more stable on the casing and thus improving the stability of the water pump installed on the water pump box. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of an embodiment of the indoor unit of this application;

[0040] Figure 2 for Figure 1 Schematic diagram of the indoor unit at section AA;

[0041] Figure 3 for Figure 1 Exploded structural diagram of the indoor unit;

[0042] Figure 4 for Figure 1 A schematic diagram of the bottom structure of the indoor unit;

[0043] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0044] Figure 6 for Figure 5 Exploded view of the locking structure, motor bracket, and water pump assembly;

[0045] Figure 7 for Figure 6 A schematic diagram of the structure of the first cover body;

[0046] Figure 8 for Figure 6 Schematic diagram of the structure of the greywater pump assembly;

[0047] Figure 9 for Figure 6 A schematic diagram of the locking structure;

[0048] Figure 10 for Figure 6 Exploded view of the water pump assembly.

[0049] Explanation of icon numbers:

[0050] 100. Indoor unit; 101. Air inlet of duct; 102. Air outlet of duct; 10. Housing; 11. Air inlet cavity; 12. Diffuser cavity; 13. Heat exchange cavity; 14. Air intake port; 15. Air outlet; 16. Casing; 161. Side wall; 20. First housing; 20a. Top cover; 21. Upper housing of air inlet cavity; 22. Upper housing of diffuser cavity; 23. Upper housing of heat exchange cavity; 24. Rear housing of air inlet cavity; 30. Second housing; 31. Diffuser cavity; 32. Lower shell of pressure chamber; 32. Water receiving tray; 321. Water receiving trough; 40. Side panel; 50. Fan; 51. Fan wheel; 53. Motor assembly; 531. Motor bracket; 5311. First cover; 5311a. Connecting groove; 5311b. Positioning post; 5311c. Positioning boss; 5313. Second cover; 533. Drive motor; 60. Heat exchanger; 70. Water pump assembly; 71. Water pump box; 71a. Pumping chamber; 71 c. Fixing groove; 711. First box body; 7111. First snap-fit ​​part; 7111a. Root segment; 7111b. Hook segment; 7112. First fixing part; 712. Second box body; 7121. Second snap-fit ​​part; 7121a. Snap-fit ​​groove; 7124. Second fixing part; 73. Water pump; 731. Pump body; 732. Connecting foot; 77. Vibration damping component; 78. First connecting part; 781. First sub-connecting part; 78 11. First connecting plate; 7812. First frame; 7813. Positioning port; 7814. Positioning groove; 782. Second sub-connecting part; 7821. Second connecting plate; 7822. Second frame; 79. Second connecting part; 7911. First pin; 7912. Second pin; 7913. Deformation gap; 7914. Guide surface; 80. Connecting pipe; 90. Locking structure; 91. Sliding body; 92. Locking body.

[0051] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0053] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0054] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] In this application, the vertical direction ZZ, the front-back direction YY, and the left-right direction XX are defined, and the vertical direction ZZ, the front-back direction YY, and the left-right direction XX are set at an angle to each other.

[0057] This application provides a heating, ventilation, and air conditioning (HVAC) system, which includes an indoor unit 100 and an outdoor unit (not shown in the figure). The indoor unit 100 and the outdoor unit are connected by cables, pipes, etc., to work together to regulate the indoor environment. Understandably, the indoor unit 100 is installed indoors, typically in the form of a suspended ceiling, for regulating the indoor temperature.

[0058] Please refer to the following: 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.

[0059] 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 diffuser chamber 12, and a heat exchange chamber 13 connected in sequence. The housing 10 also forms an air intake 14 communicating with the air inlet chamber 11 and an air outlet 15 communicating with the heat exchange chamber 13, so that gas can enter the heat exchange air duct from the air intake 14, and can pass through the air inlet chamber 11, the diffuser chamber 12, and the heat exchange chamber 13 in sequence, and finally flow out from the air outlet 15.

[0060] 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 requirements such as high strength and corrosion resistance. Alternatively, the first housing 20 and the second housing 30 can also be made of plastic to achieve a lightweight design of the housing 10. They can be connected individually or in combination by means of snap-fit, riveting, welding, bolting, etc., and this application does not impose any restrictions on this.

[0061] Specifically, please combine Figures 1 to 3 The first housing 20 includes a top cover 20a and two side panels 40. The two side panels 40 are spaced apart in the left-right direction (XX). The top cover 20a is generally positioned above the two side panels 40 and extends in the front-back direction (YY). The top cover 20a is connected to the two side panels 40 on both sides in the left-right direction (XX). Thus, the top cover 20a and the two side panels 40 are joined together to form the first housing 20. The second housing 30 is spaced apart from the top cover 20a in the vertical direction (ZZ). The second housing 30 is connected to the two side panels 40 on both sides in the left-right direction (XX). The first housing 20, the second housing 30, and the two side panels 40 are joined together to form the aforementioned housing 10.

[0062] like Figure 2 and Figure 3 As shown, along the front-rear direction YY from back to front, the upper cover 20a includes a rear shell 24 for the air inlet cavity, an upper shell 21 for the air inlet cavity, an upper shell 22 for the diffuser cavity, and an upper shell 23 for the heat exchange cavity, connected in sequence. The second shell 30 includes a front shell for the air inlet cavity, a shell body, and a water receiving tray 32, connected in sequence. The rear shell 24 and the front shell for the air inlet cavity are spaced apart in the front-rear direction YY, and the rear shell 24, the upper shell 21, the front shell, and the side panel 40 define the air inlet cavity 11. The upper shell 22 and the lower shell 31 for the diffuser cavity are spaced apart in the upper direction ZZ, and the upper shell 22, the lower shell 31, and the side panel 40 define the diffuser cavity 12. The upper shell 23, the water receiving tray 32, and the side panel 40 define the heat exchange cavity 13.

[0063] The fan 50 is installed inside the air inlet cavity 11. It can be a cross-flow fan 50, a centrifugal fan 50, or an axial fan 50, etc. Taking the cross-flow fan 50 as an example, the fan 50 includes a fan wheel 51 and a motor assembly 53. The fan wheel 51 is arranged in a long cylindrical shape and is installed inside the air inlet cavity 11 of the heat exchange air duct.

[0064] The motor assembly 53 includes a motor bracket 531 and a drive motor 533. The drive motor 533 is located at one end of the impeller 51 and mounted on the motor bracket 531, and is connected to the impeller 51 in a transmission manner; that is, the output shaft of the drive motor 533 is connected to the impeller 51. The impeller 51 has multiple blades distributed along its circumference. When the drive motor 533 drives the impeller 51 to rotate, the rotating blades cause gas to flow from the air inlet chamber 11 to the diffuser chamber 12. The cross-flow fan 50 has the advantages of energy saving, large air volume, low noise, and simple installation.

[0065] Combination Figure 2 and Figure 3 The heat exchanger 60 is housed within the heat exchange chamber 13 and is used for heat exchange with the airflow flowing through the heat exchange chamber 13 and passing through the heat exchanger 60. For example, multiple refrigerant pipes are installed inside the heat exchanger 60. When the gas passes through the heat exchanger 60, it exchanges heat with the refrigerant inside the pipes, thereby changing the gas temperature. 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 in this application can be straight, V-shaped, arc-shaped, or wavy, etc., and is not limited here.

[0066] In this embodiment, the heat exchanger 60 is mounted on a drip tray 32, and a drip trough 321 is provided inside the drip tray 32. During the operation of the indoor unit 100, condensate may form in the heat exchanger 60, and the condensate enters the drip trough 321 under the action of gravity. Over time, the condensate accumulates in the drip trough 321 and the water level gradually rises. To facilitate the drainage of the condensate, the indoor unit 100 is also equipped with a water pump assembly 70, which can be located beside the drip tray 32 to drain the condensate.

[0067] To improve the stability of the water pump assembly 70 installed within the housing 10, please refer to [the relevant documentation / reference]. Figures 4 to 6 In some embodiments, the water pump assembly 70 includes a water pump 73 and a water pump housing 71. The water pump 73 is connected to the water receiving tank 321 to draw water from the water receiving tank 321. In this way, the water pump 73 can draw water from the water receiving tank 321 in a timely manner and then discharge the water to the outside, thus preventing condensate from accumulating in the water receiving tank 321.

[0068] The pump box 71, serving as the fixing body for the pump assembly 70, can be generally cylindrical and made of plastic materials such as PP (Polypropylene) or XPS (extruded polystyrene foam) to give it advantages such as light weight and aesthetic appearance. The pump 73 is installed in the pump box 71. The pump box 71 defines a pumping chamber 71a, which communicates with the water receiving tank 321. The pump 73 is housed within the pumping chamber 71a to draw water flowing from the water receiving tank 321 into the pumping chamber 71a. Thus, by housing the pump 73 within the pumping chamber 71a, the pump box 71 provides a degree of protection for the pump 73.

[0069] The water pump box 71 is provided with a first connecting part 78 and a second connecting part 79. It can be understood that the first connecting part 78 and the second connecting part 79 can be provided on adjacent sides of the water pump box 71. The first connecting part 78 is fixedly connected to the motor bracket 531. The connection between the two can be a detachable connection such as a snap-fit ​​or threaded connection, or a non-detachable connection such as welding or bonding. This embodiment does not limit this.

[0070] The second connecting part 79 is fixedly connected to the housing 10. The connection between the two can be a detachable connection such as a snap-fit ​​or a threaded connection, or a non-detachable connection such as welding or bonding. This embodiment does not limit this.

[0071] In summary, the water pump box 71 of this application embodiment is provided with a first connecting part 78 and a second connecting part 79, and the first connecting part 78 and the second connecting part 79 are respectively fixedly connected to the motor bracket 531 and the housing 10. This allows the staff to operate the water pump 73 directly without disassembling the water tray 32 when inspecting the water pump 73, thereby reducing steps, simplifying operation, 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 tray 32, simplifying the construction of the ceiling.

[0072] Furthermore, the arrangement of the first connecting part 78 and the second connecting part 79 enables the water pump box 71 to have at least two connection points with other components of the indoor unit 100, making the water pump box 71 more stable on the housing 10, which in turn helps to improve the stability of the water pump 73 installed on the water pump box 71.

[0073] Please refer to the following: Figures 4 to 6In some embodiments, the first connecting part 78 is detachably fixedly connected to the motor bracket 531. For example, the two can be detachable connections such as snap-fit ​​or screw-fit, which are easy to disassemble and securely connected. The second connecting part 79 is detachably fixedly connected to the housing 10. For example, the two can be detachable connections such as snap-fit ​​or screw-fit, which are easy to disassemble and securely connected.

[0074] Thus, this embodiment, by being designed in a detachable manner, helps to improve the convenience of maintenance for staff. When the water pump 73 needs to be repaired, the first connecting part 78 can be disconnected from the motor bracket 531, and then the second connecting part 79 can be disconnected from the housing 10, so that the water pump assembly 70 can be disassembled for subsequent maintenance or replacement of the water pump 73.

[0075] Furthermore, in some indoor unit 100 models that do not have a water pump 73 at the factory, if the user needs to add a water pump assembly 70 later, the water pump assembly 70 can be quickly installed on the indoor unit 100 through the detachable connection between the first connecting part 78 and the motor bracket 531, and the detachable connection between the second connecting part 79 and the housing 10, which is very convenient.

[0076] Please see Figure 6 , Figure 8 as well as Figure 10 Furthermore, 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. In terms of the materials used for the first box body 711 and the second box body 712, the two can be made of the same material, such as both being made of plastic. Of course, the two can also be made of different materials, such as one being made of plastic and the other being made of metal, 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. This application embodiment does not limit this.

[0077] The first housing 711 and the second housing 712 can be arranged ZZ in the vertical direction, and the two are connected and cooperate to define the water pumping chamber 71a. It is understood that the separate arrangement of the first housing 711 and the second housing 712 is more conducive to production and disassembly, facilitates the maintenance of the water pump 73, and can improve work efficiency.

[0078] The first box 711 and the second box 712 cooperate to form the first connecting part 78 and the second connecting part 79. Thus, after the first box 711 and the second box 712 are connected and assembled, the first connecting part 78 and the second connecting part 79 are formed. The two separate components, the first box 711 and the second box 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 housing 10.

[0079] Please refer to the following: Figures 5 to 6 Furthermore, the motor bracket 531 may be a cover structure. Specifically, the motor bracket 531 includes a first cover 5311 and a second cover 5313, which cover each other to form a fixed cavity for housing the drive motor 533. At least one of the first cover 5311 and the second cover 5313 is connected to the housing 10.

[0080] The first cover 5311 and the second cover 5313 work together to clamp and fix the first connecting part 78. It can be understood that clamping and fixing the first connecting part 78 with two covers is more conducive to improving the clamping stability of the motor bracket 531 on the first connecting part 78, making the connection of the water pump box 71 more stable.

[0081] To further improve the efficiency of the connection between the first connecting part 78 and the motor bracket 531, please refer to [the relevant documentation]. Figures 5 to 6 In some embodiments, the first connecting portion 78 includes a first sub-connecting portion 781 and a second sub-connecting portion 782.

[0082] The first sub-connecting part 781 is provided on the first box body 711, and the second sub-connecting part 782 is provided on the second box body 712, and cooperates with the first sub-connecting part 781 to form a positioning opening 7813. The surface of the first cover 5311 facing the second cover 5313 is provided with a positioning post 5311b, and the positioning post 5311b passes through the positioning opening 7813.

[0083] The surface of the first cover 5311 facing the second cover 5313 is provided with a positioning post 5311b, which passes through the positioning opening 7813. Thus, in actual operation, the positioning post 5311b and the positioning opening 7813 can be used to position the first cover 5311 and the first connecting part 78. Then, the second cover 5313 is placed on the first cover 5311, so that the first cover 5311 and the second cover 5313 clamp and fix the connecting plate 781. This makes the assembly process more convenient and the connection position more accurate, improving the clamping effect of the first cover 5311 and the second cover 5313 on the first connecting part 78.

[0084] Please refer to the following: Figures 6 to 8 In some embodiments, the first connecting portion 78 includes a first connecting plate 7811 and a first frame 7812 connected to the outside of the first connecting plate.

[0085] The second sub-connecting portion 782 includes a second connecting plate 7821 and a second surrounding frame 7822 connected to the outside of the second connecting plate 7821. The second connecting plate 7821 is fitted to the first connecting plate 7811 and together forms a positioning opening 7813. The second surrounding frame 7822 is fitted to the first surrounding frame 7811. Thus, this embodiment can improve the structural strength of the first sub-connecting portion 7811 by providing the first surrounding frame 7812 and connecting it to the outside of the first connecting plate 7811, thereby improving the stability of the connection between the first connecting portion 78 and the motor bracket 531. Similarly, this embodiment can improve the structural strength of the second sub-connecting portion 782 by providing the second surrounding frame 7822 and connecting it to the outside of the second connecting plate 7821, thereby improving the stability of the connection between the first connecting portion 78 and the motor bracket 531.

[0086] Please refer to the following: Figures 6 to 8 Furthermore, the first frame 7812 and the first connecting plate 7811 cooperate to form a positioning groove 7814. The surface of the first cover 5311 facing the second cover 5313 is also provided with a positioning boss 5311c, and a positioning post 5311b passes through the positioning boss 5311c. The positioning boss 5311c is used to be embedded in the positioning groove 7814. Thus, in actual operation, the positioning boss 5311c and the positioning groove 7814 can be positioned and engaged first, and then the positioning post 5311b and the positioning opening 7813 can be positioned and engaged. This allows the first cover 5311 and the second cover 5313 to clamp and fix the first connecting part 78. This makes the assembly process more convenient, the connection position more accurate, and improves the clamping effect of the first cover 5311 and the second cover 5313 on the first connecting part 78.

[0087] Please refer to the following: Figures 6 to 8 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 connecting part 78. Thus, by setting the connection between the first cover 5311 and the second cover 5313 to a detachable form, in actual disassembly and assembly, when it is necessary to disassemble the first connecting part 78 from the motor bracket 531, it is only necessary to detach the first cover 5311 from the second cover 5313, that is, to remove the first cover 5311. Then, the first connecting part 78 can be removed from the motor bracket 531, and the water pump assembly 70 can be taken out, making the operation very convenient.

[0088] Please refer to the following: Figures 5 to 6 Furthermore, the first cover 5311 is provided with a connecting groove 5311a, and the indoor unit 100 also includes a locking structure 90, which includes a sliding body 91 and a locking body 92. The sliding body 91 is slidably connected to the second cover 5313. It can be understood that a groove can be formed on the second cover 5313, and the sliding body 91 is slidably disposed in the groove. The side of the sliding body 91 facing away from the locking body 92 is provided with an operating part. Thus, in actual operation, the operator can manipulate the operating part to make the sliding body 91 slide in the groove.

[0089] The locking body 92 can be cylindrical, and the shape of the connecting groove 5311a can be adapted to be circular, making the fit between the two smoother. The locking body 92 is connected to the sliding body 91, and under the action of the sliding body 91, it can be inserted into or disengaged from the connecting groove 5311a along the sliding direction of the sliding body 91, so that the second cover 5313 and the first cover 5311 can be connected or disconnected.

[0090] Of course, this application is not limited to this. In other embodiments, the first cover 5311 and the second cover 5313 can also be screwed, snap-fitted or other detachable forms.

[0091] Please refer to the following: Figures 4 to 5 Furthermore, the housing 10 includes the casing 16 and the aforementioned water tray 32. The motor bracket 531 is connected to the casing 16. It is understood that the casing 16 may include the aforementioned first casing 20, the air inlet cavity front casing, and the casing body. The water tray 32 is connected to the casing 16, and the casing 16 and the water tray 32 cooperate to define at least a portion of the heat exchange air duct.

[0092] 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 formed in the side wall 161. The second connecting part 79 includes a first pin 7911 and a second pin 7912. The first pin 7911 is located in the first housing 711, and the second pin 7912 is located in the second housing 712. The first pin 7911 and the second pin 7912 pass through the through hole to be inserted into the side wall 161 of the housing 16. It can be understood that the first pin 7911 and the second pin 7912 can each be semi-cylindrical, and the two can be combined to form a cylindrical shape, making the second connecting part 79 cylindrical.

[0093] Thus, in this embodiment, the connection bracket is inserted into the side wall 161 of the housing 16, which facilitates the connection operation between the second connecting part 79 and 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 to complete the operation of inserting the second connecting part 79 into the housing 16, which is stable and quick.

[0094] Understandably, with the clamping and engagement of the first cover 5311 and the second cover 5313 of the motor bracket 531 with 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 housing 16. In this way, the water pump box 71 is fixed in two positions, which can effectively improve the fixing effect of the water pump box 71. Moreover, the second connecting part 79, based on the through hole, can further prevent the water pump box 71 from flipping over, which is conducive to improving the stability of the installation of the water pump box 71. In the actual disassembly and assembly process, taking the disassembly of the water pump assembly 70 as an example, the second cover 5313 can be removed. At this time, the second cover 5313 and the first cover 5311 will release the clamp on the first connecting part 78. Then, the second connecting part 79 can be pulled out from the through hole, and the water pump assembly 70 can be disassembled. At the same time, during disassembly, there is no need to use external disassembly tools. For example, there is no need to use screwdrivers or other disassembly tools on the basis of unthreaded connection, making the operation very convenient.

[0095] To facilitate the insertion of the first pin 7911 and the second pin 7912 into the via, please refer to the following: Figure 5 , Figure 6 as well as Figure 8 In some structural configurations, a deformation gap 7913 is formed between the first pin 7911 and the second pin 7912. This allows at least one of the first pin 7911 and the second pin 7912 to undergo elastic deformation when the outer wall of the insertion end is pressed against the sidewall of the through hole, facilitating the insertion of the second connecting portion 79 through the through hole and simplifying operation. Furthermore, even if the second connecting portion 79 has manufacturing errors that result in its outer diameter being larger than the inner diameter of the through hole, the deformation gap 7913 still allows it to pass through the through hole, reducing manufacturing difficulty.

[0096] To improve the smoothness of the second connecting part 79 when it passes through the through hole, please refer to the following: Figure 5 , Figure 6 as well as Figure 8 In some structural forms, at least a portion of the outer peripheral surface of the first pin 7911 and at least a portion of the outer peripheral surface of the second pin 7912 form a guide surface 7914.

[0097] The guide surface 7914 is used to guide and engage with the sidewall of the via hole as the first pin 7911 and the second pin 7912 pass through the via hole. Thus, the guiding engagement between the guide surface 7914 and the sidewall of the via hole improves the smoothness of the second connecting part 79 passing through the via hole, facilitating operation.

[0098] Please refer to the accompanying diagram. Figure 5 , Figure 6 as well as Figure 8 In some embodiments, multiple vias are provided, spaced apart on the sidewall 161. Multiple second connecting portions 79 are also provided, with each second connecting portion 79 corresponding to one of the multiple vias. This embodiment, by providing multiple second connecting portions 79, improves the stability of the connection between the second connecting portions 79 and the housing 16. For example, two second connecting portions 79 may be provided, and two vias may be provided, with one second connecting portion 79 corresponding to one via. Of course, in other embodiments, the number of second connecting portions 79 and vias may be one; this embodiment does not limit this.

[0099] Please refer to the following: Figures 4 to 5 Furthermore, the housing 10 includes the casing 16 and the aforementioned water receiving tray 32. It is understood that the casing 16 may include the aforementioned first casing 20, the front casing of the air inlet cavity, and the casing body. The water receiving tray 32 is connected to the casing 15, and the casing 16 cooperates with the water receiving tray 32 to define at least a portion of the heat exchange air duct.

[0100] The indoor unit 100 also includes a connecting pipe 80, which can be made of materials such as plastic or resin for easy processing. This embodiment does not specifically limit the form of the connecting pipe 80, but its shape can be cylindrical.

[0101] One end of the connecting pipe 80 is connected to the water receiving tray 32, and the other end is connected to the water pump box 71, thus connecting the water receiving trough 321 and the water pumping chamber. In this way, the water receiving trough 321 and the water pumping chamber form a communicating vessel structure through the connecting pipe 80. Condensate in the water receiving trough 321 can flow into the water pumping chamber through the connecting pipe 80, and then be discharged from the water pumping chamber under the suction of the water pump 73, thereby achieving the operation of discharging condensate from the water receiving trough 321. With both ends of the connecting pipe 80 connected to the water receiving tray 32 and the water pump box 71 respectively, the water pump box 71 can also be connected to the water receiving tray 32 through the connecting pipe 80, further improving the stability of the water pump assembly 70 within the housing 10.

[0102] Furthermore, the connection pipe 80 offers greater flexibility, allowing for more flexible installation of the pump assembly 70 and facilitating structural layout. On the other hand, the connection pipe 80 avoids the high machining precision and operational difficulties required for direct connection between the pump box 71 and the water receiving tray 32, thereby reducing production costs, increasing production efficiency, and making the assembly and disassembly of the pump assembly 70 more convenient, further improving work efficiency.

[0103] Please see Figure 10 In some embodiments, the pump assembly further includes a vibration damper 77. The pump 73 includes a pump body 731 and a connecting foot 732. The pump body 731 is used to draw water from the pumping chamber 71a. The connecting foot 732 is connected to the outside of the pump body 731. The vibration damper 77 is sleeved on the connecting foot 732.

[0104] The vibration damping component 77 can be a rubber component to provide excellent elasticity and vibration absorption performance. Alternatively, it can be other plastic components with vibration damping capabilities; this application does not limit the specific type of component. It is understood that during the actual operation of the pump body 731 of the water pump 73, the pump body 731 vibrates to a certain extent, which may cause the connecting foot 732 to collide with the water pump box 71. Therefore, the vibration damping component 77 is fitted onto the connecting foot 732 to help reduce the vibration and impact of the connecting foot 732 on the water pump box 71, reducing noise generation. Simultaneously, it avoids rigid contact between the connecting foot 732 and the water pump box 71, thereby extending the service life of both the connecting foot 732 and the water pump box 71.

[0105] The first housing 711 is provided with a first fixing part 7112, and the second housing 712 is provided with a second fixing part 7124. The first fixing part 7112 can cooperate with the second fixing part 7124 to fix the vibration damping member 77, so as to fix the pump body 731 in the pumping chamber 71a.

[0106] Thus, based on the setting of the vibration damper 77, the vibration energy transmitted from the connecting foot 732 to the water pump box 71 can be absorbed, reducing noise generation. This also reduces the transmission of vibration energy to the side panel 40 of the first housing 20 of the indoor unit 100. At the same time, the vibration damper 77 can also prevent the connecting foot 732 from rigidly contacting the water pump box 71, thereby extending the service life of the connecting foot 732 and the water pump box 71. Secondly, in the actual installation process, when the first box 711 and the second box 712 are connected, the first fixing part 7112 and the second fixing part 7124 can cooperate to fix the vibration damper 77, thereby fixing the pump body 731 in the water pumping chamber 71a. In this way, there is no need to set up additional fixing steps for connecting the connecting foot 732 to the water pump box 71, thus improving the installation convenience while ensuring a better fixing effect.

[0107] Please see Figure 8 and Figure 10 In some structural forms, one of the first box 711 and the second box 712 is provided with a first snap-fit ​​part 7111, and the other is provided with a second snap-fit ​​part 7121.

[0108] The first snap-fit ​​portion 7111 and the second snap-fit ​​portion 7121 are adapted to snap together so that the first housing 711 and the second housing 712 are snapped together. In this way, the assembly steps of the first housing 711 and the second housing 712 can be simplified, and no additional disassembly tools are required for disassembly and assembly, which improves the convenience of disassembly and assembly between the first housing 711 and the second housing 712, while also ensuring the stability of the connection between the two.

[0109] Understandably, during the installation of the water pump 73 from 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. Furthermore, during the assembly of the water pump assembly 70 within the machine body, the first connecting part 78 and the second connecting part 79 are also not threaded to the motor bracket 531 and the housing 10, respectively. Therefore, no additional disassembly tools are required throughout the process, making the operation very convenient and quick.

[0110] Please see Figure 8 and Figure 10 Furthermore, the first snap-fit ​​portion 7111 includes a root segment 7111a and a hook segment 7111b. One end of the root segment 7111a is connected to the first housing 711 or the second housing 712, and the other end is connected to the hook segment 7111b.

[0111] The second latching part 7121 is provided with a latching groove 7121a, the root segment 7111a is inserted into the latching groove 7121a, and the hook segment 7111b abuts against the back of the second latching part 7121. Thus, the insertion of the root segment 7111a into the latching groove 7121a makes operation very convenient, and the abutment of the hook segment 7111b against the back of the second latching part 7121 ensures the stability of the connection between the first latching part 7111 and the second latching part 7121.

[0112] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0113] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An indoor unit, characterized in that, include: The shell has a heat exchange air duct inside, and a water receiving tank is provided inside the heat exchange air duct; A motor assembly and a fan impeller, the fan impeller being disposed within the heat exchange duct; the motor assembly including a motor bracket and a drive motor mounted on the motor bracket; the motor bracket being connected to the housing; and the drive motor being drively connected to the fan impeller; and A water pump assembly includes a water pump housing and a water pump. The water pump housing defines a water pumping chamber, which is connected to a water receiving tank. The water pump is housed in the water pumping chamber to draw water flowing from the water receiving tank into the water pumping chamber. The water pump box is provided with a first connecting part and a second connecting part, wherein the first connecting part is fixedly connected to the motor bracket and the second connecting part is fixedly connected to the housing.

2. The indoor unit as described in claim 1, characterized in that, The first connecting part is detachably and fixedly connected to the motor bracket, and the second connecting part is detachably and fixedly connected to the housing.

3. The indoor unit as described in claim 2, characterized in that, 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 chamber; The first box and the second box cooperate to form the first connecting part and the second connecting part.

4. The indoor unit as described in claim 3, characterized in that, The motor bracket includes a first cover and a second cover that overlap each other. At least one of the first cover and the second cover is connected to the housing. The first cover and the second cover cooperate to clamp and fix the first connecting part.

5. The indoor unit as described in claim 4, characterized in that, The first connecting part includes: The first sub-connecting part is disposed on the first housing body; and The second sub-connecting part is provided on the second box body and cooperates with the first sub-connecting part to form a positioning opening; The first cover has a positioning post on its surface facing the second cover, and the positioning post passes through the positioning opening.

6. The indoor unit as described in claim 5, characterized in that, The first sub-connecting part includes a first connecting plate and a first surrounding frame connected to the outside of the first connecting plate; The second sub-connecting part includes a second connecting plate and a second frame connected to the outside of the second connecting plate. The second connecting plate is fitted with the first connecting plate and together forms the positioning opening. The second frame is fitted with the first frame.

7. The indoor unit as described in claim 6, characterized in that, The first frame and the first connecting plate cooperate to form a positioning groove. The surface of the first cover facing the second cover is also provided with a positioning boss, and the positioning post passes through the positioning boss. The positioning boss is used to be embedded in the positioning groove.

8. The indoor unit as described in any one of claims 4-7, characterized in that, The first cover is fixedly connected to the housing, and the second cover is detachably connected to the first cover to clamp or release the first connecting part.

9. The indoor unit as described in claim 8, characterized in that, The first cover is provided with a connecting groove, and the indoor unit further includes a locking structure, the locking structure including: The sliding body is slidably connected to the second cover; and The locking body is connected to the sliding body and can be inserted into or disengaged from the connecting groove along the sliding direction of the sliding body under the action of the sliding body, so that the second cover and the first cover can be connected or disconnected.

10. The indoor unit as described in any one of claims 3-7 and 9, characterized in that, The housing includes a casing, and the motor bracket is connected to the casing; The housing has a side wall, and the side wall has a through hole. The second connection part includes a first pin and a second pin. The first pin is disposed in the first housing and the second pin is disposed in the second housing. The first pin and the second pin pass through the through hole to be inserted into the side wall of the housing.

11. The indoor unit as described in claim 10, characterized in that, A deformation gap is formed between the first pin and the second pin.

12. The indoor unit as described in claim 10, characterized in that, At least a portion of the outer peripheral surface of the first pin and at least a portion of the outer peripheral surface of the second pin are each provided with a guide surface, which is used to guide and engage with the sidewall of the via as the first pin and the second pin pass through the via.

13. The indoor unit as described in claim 10, characterized in that, The vias include a plurality of vias, which are spaced apart on the sidewall; The second connecting portion includes multiple portions, and each of the multiple second connecting portions corresponds to one of the multiple vias.

14. The indoor unit as described in any one of claims 3-7, 9, and 11-13, characterized in that, One of the first box body and the second box body is provided with a first latching part, and the other is provided with a second latching part; The first snap-fit ​​portion and the second snap-fit ​​portion are adapted to snap-fit ​​together so that the first box body and the second box body snap-fit ​​together.

15. The indoor unit as described in claim 14, characterized in that, The first snap-fit ​​portion includes a root segment and a hook segment. One end of the root segment is connected to the first housing or the second housing, and the other end is connected to the hook segment. The second snap-fit ​​part is provided with a snap-fit ​​groove, the root segment is inserted into the snap-fit ​​groove, and the hook segment abuts against the back of the second snap-fit ​​part.

16. The indoor unit as described in any one of claims 1-7, 9, 11-13, and 15, characterized in that, The housing includes a casing and a water receiving tray connected to the casing. The casing is connected to the motor bracket and cooperates with the water receiving tray to define at least a portion of the heat exchange air duct. The water receiving tray is provided with the water receiving groove. The indoor unit also includes a connecting pipe, one end of which is connected to the water receiving tray and the other end of which is connected to the water pump box to connect the water receiving tank and the water pumping chamber.

17. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, include: Outdoor unit; and The indoor unit as described in any one of claims 1 to 16 is connected to the outdoor unit via a pipeline.

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