Indoor unit and heating, ventilation and air conditioning device

Abstract

An indoor unit (1) and a heating, ventilation and air conditioning device. The indoor unit (1) comprises a housing (10) and a pipeline assembly (80). The housing (10) comprises two side plates (70) spaced apart from and opposite to each other, and a piping space (16) is formed between the two side plates (70); each side plate (70) is provided with a pipe outlet portion (71) communicated with the piping space (16); and the pipeline assembly (80) can be partially installed in the piping space (16) and extends out of the piping space (16) by means of any one of the two pipe outlet portions (71). According to the indoor unit (1), a piping path of the pipeline assembly (80) can be simplified, facilitating arrangement of the piping by workers, reducing the materials of the pipeline assembly (80) and lowering costs.

Description

Indoor units and HVAC equipment

[0001] This application claims priority to Chinese patent applications with application number 202410048271.8 filed on January 11, 2024, with invention name “Indoor unit and HVAC equipment” and application number 202420079734.2 filed on January 11, 2024, with invention name “Indoor unit and HVAC equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of HVAC equipment, and in particular to an indoor unit and HVAC equipment using the indoor unit. Background Art

[0003] HVAC equipment generally consists of two parts: indoor unit and outdoor unit. A refrigerant circulation is formed between the indoor unit and the outdoor unit, so that the indoor unit can deliver airflow at the required temperature in the indoor environment, thereby making the indoor ambient temperature more stable.

[0004] In the prior art, the pipe assemblies of the indoor unit of the HVAC equipment, such as the refrigerant pipe assemblies, have their joints usually arranged on any side of the casing along its length direction. When the outdoor unit is placed on the opposite side of the side where the pipe assembly is arranged, the connecting pipe in the pipe assembly connected to the outdoor unit needs to bypass the outside of the indoor unit before it can be connected to the joint pipe of the pipe assembly. This will make the connecting pipe longer and the pipe routing complicated, making it inconvenient for staff to perform pipe laying operations. Summary of the Invention

[0005] The embodiments of the present application provide an indoor unit and HVAC equipment, which can simplify the piping path of the pipeline components, facilitate pipe laying by workers, save materials for the pipeline components, and reduce costs.

[0006] In a first aspect, an embodiment of the present application provides an indoor unit, comprising:

[0007] A casing, the casing comprising two spaced and oppositely disposed side panels, a pipe outlet space being defined between the two side panels, each side panel having a pipe outlet portion communicating with the pipe outlet space; and

[0008] A pipeline assembly can be partially installed in the pipeline space and extend out of the pipeline space through any one of the two pipe outlets.

[0009] In some embodiments, the housing includes a diffuser portion, the diffuser portion forming a diffuser cavity;

[0010] The bottom wall of the pressure diffuser cavity is inclined or concave, so as to cooperate with at least two of the side plates to define the pipe running space.

[0011] In some embodiments, the housing further includes a heat exchange portion and a fan portion, and the diffuser portion is connected to the heat exchange portion and the fan portion on both sides along its length direction respectively;

[0012] The heat exchange portion forms a heat exchange cavity, the fan portion forms a fan cavity, and the cavity bottom wall of the pressure diffuser cavity, the cavity bottom wall of the heat exchange cavity and the two side plates cooperate to define the pipe running space;

[0013] The heat exchange chamber, the pressure diffuser chamber and the fan chamber are arranged in sequence. In the arrangement direction of the heat exchange chamber, the pressure diffuser chamber and the fan chamber, the pipe space is located between the heat exchange chamber and the fan chamber.

[0014] In some embodiments, in the arrangement direction of the heat exchange chamber, the pressure diffuser chamber, and the fan chamber, the pipe space is located in the middle of the indoor unit.

[0015] In some embodiments, the side panel comprises:

[0016] a plate body, defining a cavity side wall of the pressure diffuser cavity, a cavity side wall of the heat exchange cavity, and a cavity side wall of the fan cavity; and

[0017] The first flange is connected to the lower edge of the plate body.

[0018] In some embodiments, a pipe opening is provided above the pipe space, the pipe opening connects the pipe space and the heat exchange cavity, and is used for the pipe assembly to pass through.

[0019] In some embodiments, the indoor unit further comprises:

[0020] A partition is located between the side plate and the diffuser along the length direction of the indoor unit, and the pipe outlet is opened on the partition.

[0021] In some embodiments, the heat exchange portion includes a water receiving tray, the water receiving tray forms the bottom wall of the heat exchange chamber, and is provided with a connecting pipe portion communicating with the water receiving tray, the connecting pipe portion being used to communicate with the pipeline assembly;

[0022] In which, the pipe outlet and the connecting pipe part are located on either side of the pipe space in the length direction of the indoor unit, and are projected along the up and down directions of the indoor unit. The projection of the pipe outlet on the casing and the projection of the connecting pipe part on the casing at least partially overlap.

[0023] In some embodiments, along the up-down direction of the indoor unit, the pipe outlet portion is a pipe outlet notch formed below the side plate.

[0024] In some embodiments, the wall of the outlet notch is smoothly transitioned.

[0025] In some embodiments, the housing further includes a support member, which is disposed below the pipe outlet notch and connected to the side panel;

[0026] Wherein, the support member is configured to support the pipeline assembly.

[0027] In some embodiments, the indoor unit further comprises:

[0028] A plastic plate is abutted against the side plate and projected along the length direction of the indoor unit. Part of the plastic plate is located in the pipe outlet notch so that the pipeline assembly is spaced apart from the wall of the pipe outlet notch.

[0029] In some embodiments, the indoor unit further includes a heat exchanger accommodated in the casing, and the casing further includes a water receiving pan provided between the two side plates, wherein the water receiving pan is located below the heat exchanger;

[0030] Wherein, the pipeline assembly is connected to the water receiving pan and / or the heat exchanger.

[0031] In some embodiments, the pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint;

[0032] Part of the pipe body of the joint pipe is installed in the pipe running space, and one end of the joint pipe away from the joint is connected to the water receiving pan or the heat exchanger, and the other end extends out of the pipe running space through any one of the pipe outlet parts and is connected to one end of the connecting pipe through the joint, and the other end of the connecting pipe is used to communicate with the external environment.

[0033] In some embodiments, the pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint;

[0034] Part of the pipe body of the joint pipe and part of the pipe body of the connecting pipe are both installed in the pipe running space, one end of the joint pipe away from the joint is connected to the water receiving pan or the heat exchanger, and one end of the connecting pipe away from the joint extends out of the pipe running space through any one of the pipe outlets for communication with the external environment.

[0035] In some embodiments, in the length direction of the indoor unit, the pipe body of the joint pipe installed in the pipe running space extends to the middle of the pipe running space.

[0036] In some embodiments, the joint pipe comprises:

[0037] A first pipe section, one end of which is connected to the water receiving pan or the heat exchanger; and

[0038] a second pipe section, at least partially installed in the pipe running space, one end of the second pipe section being connected to the other end of the first pipe section, and the other end of the second pipe section being connected to one end of the connecting pipe via the joint;

[0039] The other end of the first pipe segment is connected to one end of the second pipe segment through an adapter so that an angle is formed between the first pipe segment and the second pipe segment; or the second pipe segment is formed as a rotatable flexible tube so that an angle is formed between the first pipe segment and the second pipe segment.

[0040] In some embodiments, the pipeline assembly includes a refrigerant pipe assembly and a drain pipe assembly, and the refrigerant pipe assembly and the drain pipe assembly each include the joint pipe, the joint, and the connecting pipe;

[0041] Wherein, one end of the joint pipe of the refrigerant pipe assembly away from the joint is connected to the heat exchanger, and the other end is connected to one end of the connecting pipe of the refrigerant pipe assembly through the joint of the refrigerant pipe assembly;

[0042] One end of the joint pipe of the drain pipe assembly away from the joint is connected to the water receiving pan, and the other end is connected to one end of the connecting pipe of the drain pipe assembly through the joint of the drain pipe assembly; or, the drain pipe assembly also includes a water pump structure, the water receiving pan and the end of the joint pipe of the drain pipe assembly away from the joint are respectively connected to the water pump structure, and the end of the joint pipe of the drain pipe assembly away from the water pump structure is connected to one end of the connecting pipe of the drain pipe assembly through the joint of the drain pipe assembly.

[0043] In some embodiments, the refrigerant pipe assembly further includes an insulation sleeve, the insulation sleeve wrapping around at least a portion of the outside of the joint pipe and the outside of the joint, and the insulation sleeve also wrapping around the outside of the connecting pipe;

[0044] Wherein, when projected along the length direction of the indoor unit, the projection of the thermal insulation sleeve on the side panel is located within the pipe outlet portion.

[0045] In a second aspect, an embodiment of the present application provides a HVAC device, which includes an outdoor unit and the indoor unit as described above, wherein the outdoor unit is connected to the indoor unit via the pipe assembly.

[0046] Based on the indoor unit and HVAC equipment of the embodiment of the present application, part of the pipe assembly is installed through the pipe space, and both side panels have an outlet portion connected to the pipe space. In this way, the pipe space can accommodate part of the pipe assembly, and any one of the outlet portions can be selected for pipe outlet. Based on this, no matter whether the outdoor unit is located on any side of the indoor unit along its length direction, the pipe assembly of this embodiment can be partially accommodated in the pipe space and extended through the outlet portion on the side close to the outdoor unit to connect with the outdoor unit. Therefore, compared with the form of routing the pipe around the outside of the indoor unit casing, the indoor unit of this embodiment can make the piping path of the pipe assembly shorter, so the length of the pipe assembly can be shorter, reducing costs, and piping is simpler, which is convenient for staff to perform takeover operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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.

[0048] FIG1 is a schematic structural diagram of an indoor unit of an embodiment of a HVAC device of the present application;

[0049] FIG2 is a cross-sectional view of the section AA shown in FIG1 ;

[0050] FIG3 is a schematic diagram of the exploded structure of the indoor unit of the HVAC equipment shown in FIG1 ;

[0051] FIG4 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG1 from a perspective;

[0052] FIG5 is a partial enlarged view of point B in FIG4 ;

[0053] FIG6 is a schematic structural diagram of a hidden piping assembly of an indoor unit of the HVAC equipment shown in FIG4 ;

[0054] FIG7 is a schematic structural diagram of the water receiving tray of the indoor unit shown in FIG3 ;

[0055] FIG8 is a schematic structural diagram of another embodiment of an indoor unit of the HVAC equipment of the present application;

[0056] FIG9 is a partial enlarged view of point C in FIG8 ;

[0057] FIG10 is a schematic structural diagram of a support member of the indoor unit shown in FIG3 ;

[0058] FIG11 is a schematic structural diagram of the side panel of the indoor unit shown in FIG3 ;

[0059] FIG12 is a schematic diagram of a partial structure of the indoor unit of the HVAC equipment shown in FIG1 .

[0060] Explanation of the accompanying figures: 1. Indoor unit; 10. Casing; 11. Fan chamber; 12. Diffuser chamber; 13. Heat exchange chamber; 14. Return air outlet; 15. Air outlet; 16. Duct space; 17. Diffuser; 18. Heat exchange section; 19. Fan section; 20. First housing; 20a. Upper cover; 21. Fan chamber upper housing; 22. Diffuser chamber upper housing; 23. Heat exchange chamber upper housing; 30. Second housing; 31. Sheet metal; 311. Main body; 312. Second flange; 33. Support member; 331. Support portion; 332. First connecting portion; 333. Second connecting portion; 40. Volute; 50. Diffuser chamber lower housing; 51. Duct opening; 60. Drain tray; 61 , connecting pipe part; 70, side panel; 71, pipe outlet; 71a, pipe outlet notch; 72, plate body; 73, first flange; 80, pipeline assembly; 81, refrigerant pipe assembly; 811, gas pipe; 812, liquid pipe; 813, insulation sleeve; 82, drain pipe assembly; 83, joint pipe; 831, first pipe section; 832, second pipe section; 91, fan; 911, wind wheel; 913, motor; 92, heat exchanger; 93, electric control box; 931, wire; 94, insulation layer; 941, upper insulation layer; 943, lower insulation layer; 95, water pump structure; 96, plastic plate; 98, grille; 99, partition; 99a, accommodating chamber.

[0061] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0063] When the following description refers to the accompanying 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 merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0064] 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 understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this 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 previous and subsequent associated objects are in an "or" relationship.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0066] Please refer to Figure 1. The embodiment of the present application proposes a HVAC equipment, which can also be called air conditioning HVAC equipment or HVAC equipment air conditioning. The HVAC equipment includes an indoor unit 1 and an outdoor unit (not shown in the figure). The indoor unit 1 is connected to the outdoor unit to jointly operate to regulate the indoor environment. It can be understood that the indoor unit 1 is arranged indoors and is usually installed in the form of a suspended ceiling to supply air to the room. Please refer to Figures 1 to 2. The indoor unit 1 may include a casing 10, a heat exchanger 92, a pipe assembly 80, a fan 91 and an electrical control box 93. The indoor unit 1 is connected to the outdoor unit through the pipe assembly 80. The overall outline of the indoor unit 1 can be roughly rectangular, and has an up-down direction, a width direction and a length direction, and the up-down direction, the width direction and the length direction are arranged at an angle to each other.

[0067] Among them, the casing 10 is used to construct an air duct suitable for the indoor unit 1 of the HVAC equipment for gas flow. Specifically, the outer contour of the casing 10 can be roughly rectangular. Please refer to Figure 2. The casing 10 is formed with a fan chamber 11, a pressure diffuser chamber 12 and a heat exchange chamber 13 that are connected in sequence. In addition, the casing 10 is also formed with a return air port 14 connected to the fan chamber 11 and an air outlet 15 connected to the heat exchange chamber 13, so that the air flow can enter the casing 10 from the return air port 14, and pass through the fan chamber 11, the pressure diffuser chamber 12 and the heat exchange chamber 13 in sequence, and finally flow out from the air outlet 15. It should be noted that the casing 10 can be a shell constituting the indoor unit 1, or a shell can be provided outside the casing 10. The embodiment of the present application does not limit this.

[0068] The following is an explanation of the relevant structure of the casing 10 with reference to the accompanying drawings. Please refer to Figures 1 to 3. In some embodiments of the present application, in order to facilitate the assembly of the indoor unit 1, the casing 10 includes a first shell 20 and a second shell 30. The first shell 20 is connected to the second shell 30 to form the above-mentioned shell. The first shell 20 and the second shell 30 can be respectively made of metal materials such as aluminum alloy or stainless steel to meet the requirements of high strength and corrosion resistance. Alternatively, the first shell 20 and the second shell 30 can also be made of plastic materials to achieve lightweight shells. This is not limited in the present application. For example, the shell can be a combination of the first shell 20 being made of metal and the second shell 30 being made of plastic. In addition, the embodiments of the present application do not limit the connection method of the first shell 20 and the second shell 30. They can be connected individually or in combination by means of clamping, riveting, welding and bolting.

[0069] Specifically, please refer to Figures 2 and 3. The first shell 20 includes an upper cover 20a and two side panels 70. The two side panels 70 are spaced apart and arranged opposite to each other in the longitudinal direction, defining the width of the first shell 20; the upper cover 20a is generally arranged above the two side panels 70 and extends along the width direction. The upper cover 20a is connected to the two side panels 70 on both sides along the longitudinal direction; in this way, the upper cover 20a and the two side panels 70 are spliced ​​to form the cover-shaped first shell 20. Of course, the upper cover 20a and the side panels 70 can be integrally or separately arranged, and the two can be made of the same or different materials and connected by means of clamping, riveting, welding, bolting, etc., which will not be described in detail in this application. Correspondingly, the second shell 30 and the upper cover 20a are spaced apart in the up and down directions and also extend along the width direction. The second shell 30 is arranged between the two side panels 70, and the second shell 30 is connected to the two side panels 70 on both sides along the length direction. In this way, the first shell 20, the second shell 30 and the two side panels 70 are spliced ​​to form the above-mentioned shell.

[0070] At least one of the first shell 20 and the second shell 30 forms the above-mentioned return air outlet 14 . That is, the return air outlet 14 can be provided in the first shell 20 or the second shell 30 , or can be formed by the first shell 20 and the second shell 30 .

[0071] Continuing to refer to Figures 2 and 3, along the width direction, the upper cover 20a includes a fan chamber upper shell 21, a diffuser chamber upper shell 22, and a heat exchange chamber upper shell 23, which are connected in sequence, and all three are disposed between two side panels 70. The second housing 30 includes a diffuser chamber lower shell 50 and a water receiving tray 60, both of which are similarly disposed between two side panels 70. The fan chamber upper shell 21 and the side panels 70 define the fan chamber 11, that is, the side panels 70 define the side walls of the fan chamber 11. The diffuser chamber upper shell 22, the diffuser chamber lower shell 50, and the side panels 70 together enclose the diffuser chamber 12. Specifically, the diffuser chamber upper shell 22 defines the top wall of the diffuser chamber 12, and the diffuser chamber lower shell 50 may define the bottom wall of the diffuser chamber 12, and the side panels 70 define the side walls of the diffuser chamber 12. The heat exchange chamber upper shell 23, the water receiving tray 60 and the side plate 70 are arranged to form the heat exchange chamber 13. Specifically, the heat exchange chamber upper shell 23 defines the top wall of the heat exchange chamber 13, the water receiving tray 60 defines the bottom wall of the heat exchange chamber 13, and the side plate 70 defines the side wall of the heat exchange chamber 13.

[0072] The casing 10 also includes a volute tongue 40, wherein the volute tongue is connected to the lower shell 50 of the diffuser chamber and is located at the junction of the fan chamber 11 and the diffuser chamber 12. The volute tongue 40 can guide the airflow sent out by the fan 91 into the diffuser chamber 12, that is, it is used to guide the airflow from the fan chamber 11 to the diffuser chamber 12.

[0073] In order to make the fan 91 exhaust air more smoothly, the distance between the return air port 14 and the entrance of the fan chamber 11 should be as short as possible to shorten the air flow path. Optionally, the return air port 14 can be set directly opposite the entrance of the fan chamber 11. For example, in the embodiment of the present application, the lower end of the upper cover 20a (the upper shell 21 of the fan chamber) is spaced apart from the water receiving tray 60 in the up and down directions, and the lower end of the upper cover 20a at least defines the return air port 14 with the water receiving tray 60. In this embodiment, the return air port 14 is located below the fan chamber 11, and after the gas enters the return air port 14, it can flow into the fan chamber 11 through a shorter path, which can effectively reduce the loss of gas and help improve the smoothness of exhaust.

[0074] In one structural form, the second housing 30 further includes a grille 98, which connects at least the lower ends of the diffuser chamber lower housing 50 and the fan chamber upper housing 21. The grille 98 is formed with a plurality of through-holes, through which air passing through the return air port 14 can enter the fan chamber 11. The provision of the grille 98 effectively prevents larger foreign matter from entering the fan chamber 11 and affecting the operation of the fan 91. The grille 98 is arranged in a grid pattern to maximize the through-holes and minimize the impact on airflow.

[0075] Please continue to refer to Figures 2 to 3. The fan 91 is arranged in the fan chamber 11 and can extract the airflow from the return air port 14 and work on it so that it flows to the diffuser chamber 12 at a faster flow rate, providing power for the airflow circulation of the above-mentioned air duct. The fan 91 can be a cross-flow fan, a centrifugal fan or an axial flow fan, etc., among which the cross-flow fan has the advantages of energy saving, large air volume, low noise and simple installation. Taking the cross-flow fan as an example, the fan 91 may include a wind wheel 911 and a motor 913. The wind wheel 911 can be arranged in an elongated cylindrical shape and accommodated in the fan chamber 11. The motor 913 is arranged at one end of the wind wheel 911 and connected to the side plate 70 of the shell, and the output shaft of the motor 913 is connected to the wind wheel 911 to drive the wind wheel 911 to rotate, so that the wind wheel 911 can be configured to be rotatably accommodated in the fan chamber 11.

[0076] The heat exchanger 92 is housed within the heat exchange chamber 13 and is located above the water tray 60 in the vertical direction of the indoor unit 1. The heat exchanger 92 is used to exchange heat with the gas flowing through the heat exchange chamber 13 and passing through the heat exchanger 92, thereby cooling or heating the gas. To increase the heat exchange area of ​​the heat exchanger 92, the heat exchanger 92 can be configured in a V-shape, an arc shape, or a wave shape, and can be composed of a single heat exchange fin or a combination of multiple heat exchange fins.

[0077] Continuing to refer to FIG4 and FIG5 , the pipe assembly 80 is in communication with the water receiving pan 60 and / or the heat exchanger 92. That is, the pipe assembly 80 may be in communication with the water receiving pan 60 or the heat exchanger 92 alone, or may include two assemblies to achieve communication with the water receiving pan 60 and the heat exchanger 92 respectively. For example, the pipe assembly 80 may include a refrigerant pipe assembly 81 and a drain pipe assembly 82. The main structure of the refrigerant pipe assembly 81 for transmitting the refrigerant may be made of metal. For example, suitable exemplary materials that can be used include but are not limited to copper, aluminum, or steel. For example, when made of copper, the main structure of the refrigerant pipe assembly 81 has advantages such as good corrosion resistance and high heat transfer efficiency. Of course, the main structure of the refrigerant pipe assembly 81 may also be made of plastic, which is not limited in this embodiment. The main structure of the drain pipe assembly 82 for discharging condensed water can be made of plastic. For example, suitable exemplary materials that can be used include but are not limited to PVC (Polyvinyl chloride), PE (Polyethylene) or PP (Polypropylene). For example, when it is made of PVC, the main structure of the refrigerant pipe assembly 81 has the advantages of being light, easy to install and corrosion-resistant, etc. This embodiment does not limit this.

[0078] Among them, one end of the refrigerant pipe assembly 81 is connected to the heat exchanger 92, and the other end is connected to the outdoor unit, so that the outdoor unit is connected to the heat exchanger 92 through the refrigerant pipe assembly 81, that is, the refrigerant pipe assembly 81 plays the role of transporting refrigerant, so that the refrigerant can circulate between the heat exchanger 92 and the outdoor unit.

[0079] In some structural forms, the refrigerant pipe assembly 81 may include an air pipe 811 and a liquid pipe 812, one end of the air pipe 811 is connected to the heat exchanger 92, and the other end is connected to the outdoor unit, one end of the liquid pipe 812 is connected to the heat exchanger 92, and the other end is connected to the outdoor unit. In this way, during the cooling process, the refrigerant will be transmitted to the heat exchanger 92 in liquid form through the liquid pipe 812, so that the heat exchanger 92 converts the refrigerant from liquid form to gaseous form, and then transmitted to the outdoor unit through the air pipe 811. In this process, the refrigerant will absorb heat and take away the heat to achieve cooling; and in the heating process, the refrigerant will be transmitted to the heat exchanger 92 in gaseous form through the air pipe 811, so that the heat exchanger 92 converts the refrigerant from gaseous form to liquid form, and then transmitted to the outdoor unit through the liquid pipe 812. In this process, the refrigerant will release heat to achieve heating. The following content further explains how the HVAC equipment of this application is easy to run pipes in the form of a pipe assembly 80 including a refrigerant pipe assembly 81 and a drain pipe assembly 82.

[0080] One end of the drain pipe assembly 82 is connected to the water receiving pan 60, and the other end is connected to the external environment. In this way, the condensed water generated by the heat exchanger 92 during operation will flow to the water receiving pan 60 under the action of its own gravity, and then flow out to the external environment through the drain pipe assembly 82, that is, it can be discharged to the outside through the drain pipe assembly 82. In this way, it can avoid the accumulation of condensed water in the water receiving pan 60 to cause condensed water leakage in the indoor unit 1, and leakage into the room.

[0081] Please refer to Figures 2 to 4. The electric control box 93 is provided with an electric control board assembly (not shown in the figure) and an electric wire 931. The electric control board assembly integrates a variety of electronic components and is used to electrically connect the motor 913 of the fan 91 and the heat exchanger 92 and other devices through the electric wire 931, and is used to generally control the overall operating status of the indoor unit 1. The electric control board assembly is used to electrically connect to an external power supply through the electric wire 931, so as to power the electric control board assembly with the external power supply. Inevitably, electronic components will generate a lot of heat during operation. In the embodiment of the present application, the electric control box 93 can be set close to the air duct, or set in the air duct formed by the casing 10, so as to dissipate heat to a certain extent for the electric control box 93 by the airflow in the air duct, thereby avoiding device operation failure or damage caused by overheating of the electric control board assembly, improving the operating stability of the indoor unit 1, and extending the service life.

[0082] Referring to Figures 2 and 3 , in some embodiments, the housing further includes an insulation layer 94, specifically an upper insulation layer 941 and a lower insulation layer 943. The upper insulation layer 941 may be connected to the side of the heat exchange chamber upper shell 23 close to the heat exchanger 92, and the lower insulation layer 943 may be connected to the side of the water receiving pan 60 facing away from the heat exchanger 92. Thus, the upper insulation layer 941 and the lower insulation layer 943 can maintain the temperature within the housing 10 to a certain extent, reducing the probability of energy within the HVAC equipment being dissipated outward through the first housing 20 and the second housing 30.

[0083] Please refer to Figures 4 and 5. In some embodiments, a pipe outlet space 16 is constructed between the two side panels 70, and each side panel 70 has a pipe outlet portion 71 connected to the pipe outlet space 16. The pipeline assembly 80 can be partially installed in the pipe outlet space 16 and extend out of the pipe outlet space 16 through either of the two pipe outlet portions 71.

[0084] It is understood that the pipe space 16 can extend along the length of the indoor unit 1 so that both ends of the pipe space 16 can communicate with the pipe outlet portions 71 of the two side panels 70. The pipe space 16 can be defined by one or a combination of the diffuser chamber lower shell 50 and the water tray 60 of the second housing 30, in conjunction with at least the two side panels 70. During actual installation, workers typically install the indoor unit 1 and the outdoor unit separately before arranging and installing the piping assembly 80. However, most indoor units 1 of HVAC equipment are ceiling-mounted. Therefore, when the pipe space 16 is located below the housing 10 in the vertical direction of the indoor unit 1, the height required for workers to reach when arranging and installing the piping assembly 80 can be appropriately reduced, facilitating operations and improving worker safety. Of course, in other structural forms, the duct space 16 can be defined by one or a combination of the fan chamber upper shell 21, the diffuser chamber upper shell 22 and the heat exchange chamber upper shell 23 of the upper cover 20a and the two side panels 70. In this way, the duct space 16 is located above the casing 10 in the up and down direction of the indoor unit 1, and this embodiment does not limit this.

[0085] The pipe outlet portion 71 can be a pipe outlet notch 71a formed on the side panel 70. Specifically, the pipe outlet notch 71a can be a strip-shaped notch extending along the width direction of the indoor unit 1. This can increase the opening area of ​​the pipe outlet notch 71a to accommodate a larger-sized pipe assembly 80 or to allow more pipes to pass through the pipe assembly 80, thereby improving versatility. Of course, in other structural forms, the pipe outlet portion 71 can also be a pipe outlet hole formed on the side panel 70. The pipe outlet hole is in the form of a through hole, that is, the pipe outlet hole is set through the two opposite plate surfaces of the side panel 70. This embodiment does not impose any restrictions on this. The following content still uses the pipe outlet portion 71 as the form of the pipe outlet notch 71a to further explain the situation in which the HVAC equipment of this application is convenient for pipe routing.

[0086] The indoor unit 1 of this embodiment is provided with a pipe space 16 for the installation of part of the pipe assembly 80, and both side panels 70 have an outlet pipe portion 71 connected to the pipe space 16. In this way, the pipe space 16 can accommodate part of the pipe assembly 80, and any one of the outlet pipe portions 71 can be selected for pipe outlet. Based on this, no matter which side of the indoor unit 1 is located along its length, the pipe assembly 80 of this embodiment can be partially accommodated in the pipe space 16 and extend through the outlet pipe portion 71 on the side close to the outdoor unit to be connected to the outdoor unit. Therefore, compared with the form of routing the pipe around the outside of the casing 10 of the indoor unit 1, the indoor unit 1 of this embodiment can make the piping path of the pipe assembly 80 shorter, so the length of the pipe assembly 80 can be shorter, reducing costs, and routing the pipe is simpler, which is convenient for staff to perform takeover operations.

[0087] 2 to 4 , in some embodiments, the housing 10 includes a diffuser 17, which forms a diffuser cavity 12. The portion of the side panel 70 located in the diffuser 17 defines the sidewalls of the diffuser cavity 12. It will be appreciated that the diffuser 17 includes an upper diffuser shell 22, a lower diffuser shell 50, and the portion of the side panel 70 located in the diffuser 17.

[0088] The surfaces opposite to the bottom wall of the pressure diffuser 12 are inclined or concave, cooperating with at least two side panels 70 to define the outlet duct space 16. It is understood that the pressure diffuser 12 is gradually expanding, and the cross-sectional area of ​​the inlet of the pressure diffuser 12 is smaller than the cross-sectional area of ​​the outlet of the pressure diffuser 12. This gradually reduces the velocity of the airflow flowing into the inlet of the pressure diffuser 12 and out of the outlet of the pressure diffuser 12, thereby reducing the dynamic pressure and increasing the stability of the airflow, thereby reducing noise and vibration. At the same time, according to Bernoulli's principle, as the dynamic pressure of the airflow decreases, the static pressure of the airflow increases, resulting in a higher static pressure when the airflow flows out of the air outlet 15. The higher static pressure helps the airflow flowing out of the air outlet 15 overcome air resistance more effectively, thereby reaching a greater distance relative to the air outlet 15 and enabling the HVAC equipment to have a longer air supply distance. Based on this, when the pressure diffuser 12 needs to be set to a gradually expanding configuration, the pressure diffuser 12 can be configured such that the pressure diffuser lower shell 50 and the bottom wall of the pressure diffuser 12 are inclined, wherein the pressure diffuser lower shell 50 is inclined downward in the direction away from the fan 91, so that the pressure diffuser 12 is configured to be gradually expanding. Alternatively, the pressure diffuser lower shell 50 can be configured to be concave, that is, when projected along the length direction of the indoor unit 1, the contour line of the pressure diffuser lower shell 50 is arranged in an arc shape, and gradually extends away from the pressure diffuser upper shell 22 in the vertical direction of the indoor unit 1 in the direction away from the fan 91. This can also enable the pressure diffuser 12 to be configured to be gradually expanding. Of course, in other structural forms, the top wall of the pressure diffuser 12 can also be inclined or concave to cooperate with at least two side panels 70 to define the outlet pipe space 16, and this embodiment is not limited to this.

[0089] In this way, this embodiment can utilize the space generated based on the gradual expansion setting of the pressure diffuser chamber 12 as a space for installing the pipe assembly 80, so that there is no need to additionally set up a pipe running space 16 on the duct assembly, thereby improving space utilization, so that the overall volume of the casing 10 does not need to be increased, thereby avoiding the overall volume of the indoor unit 1 being too large, so that the indoor unit 1 can also be used in installation environments with smaller installation space, and has wider applicability.

[0090] Continuing to refer to Figures 2 to 4 , the housing 10 further includes a heat exchange portion 18 and a fan portion 19. The diffuser 17 is connected to the heat exchange portion 18 and the fan portion 19 on either side along its length. It is understood that the heat exchange portion 18 includes the heat exchange chamber upper shell 23, the water tray 60, and the portion of the side panel 70 located within the heat exchange portion 18. The fan portion 19 includes the fan chamber upper shell 21 and the portion of the side panel 70 located within the fan portion 19.

[0091] The heat exchange portion 18 forms a heat exchange chamber 13. The portion of the side panel 70 located in the heat exchange portion 18 defines the side walls of the heat exchange chamber 13. The fan portion 19 forms a fan chamber 11. The portion of the side panel 70 located in the fan portion 19 defines the side walls of the fan chamber 11. The surfaces opposite the bottom wall of the pressure diffuser chamber 12, the surfaces opposite the bottom wall of the heat exchange chamber 13, and the two side panels 70 cooperate to define a duct space 16. The heat exchange chamber 13, the pressure diffuser chamber 12, and the fan chamber 11 are arranged in sequence. In the arrangement direction of the heat exchange chamber 13, the pressure diffuser chamber 12, and the fan chamber 11, the duct space 16 is located between the heat exchange chamber 13 and the fan chamber 11. Thus, in this defined form, the duct space 16 is located between the heat exchange chamber 13 and the fan chamber 11 of the indoor unit 1 and is downwardly open. This allows personnel to conveniently access the duct assembly 80 through the opening when disassembling it.

[0092] Furthermore, in the arrangement direction of the heat exchange chamber 13, the pressure diffuser chamber 12, and the fan chamber 11, the pipe running space 16 is located in the middle of the indoor unit 1. It is understood that in the limited form of the pipe running space 16, in addition to being located in the middle of the indoor unit 1, the pipe running space 16 can also be opened downward. In this way, when disassembling and installing the pipe assembly 80, the staff can operate through the opening, which is more convenient.

[0093] During the actual flow of air, when the air flows through the fan chamber 11, the pressure diffuser chamber 12 and the heat exchange chamber 13 in sequence, the pressure diffuser chamber 12 is set to gradually expand, which can gradually reduce the airflow velocity and reduce the dynamic pressure. Therefore, the smaller flow rate enables the airflow to more fully exchange heat with the heat exchanger 92 when passing through the heat exchange chamber 13. In this way, the heat exchange efficiency can be improved, so that the indoor unit 1 can achieve better cooling or heating effects.

[0094] Please refer to Figures 4 and 5. In some structural forms, the electrical control box 93 can be installed on the surface of the lower shell 50 of the pressure diffusion chamber opposite to the bottom wall of the pressure diffusion chamber 12, and accommodated in the pipe space 16. In this way, the casing 10 can also further utilize the space generated based on the gradual expansion setting of the pressure diffusion chamber 12 as a space for installing the electrical control box 93. In this way, the casing 10 does not need to be additionally provided with space for installing the electrical control box 93, and the pipe space 16 can accommodate part of the pipeline assembly 80 and the electrical control box 93 at the same time. Therefore, this embodiment has a higher utilization rate of the pipe space 16, and the overall space utilization rate of the casing 10 can also be further improved, so that the overall volume of the casing 10 does not need to be increased, thereby avoiding the overall volume of the indoor unit 1 being too large, so that the indoor unit 1 can also be suitable for installation environments with smaller installation space, and has a wider applicability.

[0095] Furthermore, the electrical wires 931 of the electrical control box 93 can be partially installed in the piping space 16. In this way, the casing 10 can also further utilize the space generated based on the gradual expansion setting of the diffuser chamber 12 as a space for routing and installing the power supply wires 931, so as to improve the utilization rate of the piping space 16.

[0096] Referring to Figures 4 to 6 , in some embodiments, a pipe opening 51 is provided above the pipe space 16 . The pipe opening 51 connects the pipe space 16 with the heat exchange chamber 13 and is used to allow the pipe assembly 80 to pass through. The pipe opening 51 can be configured in an elongated shape, thereby increasing the opening area of ​​the pipe opening 51 to accommodate larger pipe assemblies 80 or to allow more pipes within the pipe assembly 80 to pass through. In this way, the refrigerant pipe assembly 81 of the pipe assembly 80 can pass through the pipe opening 51 from top to bottom and enter the pipe space 16 , thus shortening the pipe routing path and facilitating pipe routing.

[0097] Referring to Figure 12 , the indoor unit 1 further includes a partition 99, which is positioned between the side panel 70 and the diffuser 17 along the length of the indoor unit 1. The pipe opening 51 is formed on the partition 99. It is understood that the upper surface of the partition 99 cooperates with the side panel to define a housing chamber 99a, which can be used to accommodate a portion of the piping and valve body of the heat exchanger 92. The lower surface of the partition 99 cooperates with the bottom wall of the diffuser chamber 12, the bottom wall of the heat exchange chamber 13, and the two side panels 70 to define the pipe space 16. In this way, the partition 99 can separate the portion of the piping and valve body of the heat exchanger 92 from the structures located within the pipe space 16.

[0098] 6 and 7 , the heat exchange portion 18 includes a water receiving tray 60 , which forms the bottom wall of the heat exchange chamber 13 and is provided with a connecting pipe portion 61 communicating with the water receiving tray 60 . The connecting pipe portion 61 is used to communicate with the pipeline assembly 80 .

[0099] The pipe opening 51 and the connecting pipe portion 61 are co-located on either side of the pipe space 16 in the longitudinal direction of the indoor unit. When projected along the vertical direction of the indoor unit 1, the projection of the pipe opening 51 on the housing 10 at least partially overlaps with the projection of the connecting pipe portion 61 on the housing 10. In this way, the pipe opening 51 and the connecting pipe portion 61 can be staggered in the vertical direction of the indoor unit 1. This allows space for personnel to perform pipe routing operations on the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the piping assembly 80, making operations more convenient for personnel. It should be noted that the projection of the pipe opening 51 on the housing 10 and the projection of the connecting pipe portion 61 on the housing 10 can partially or completely overlap, and this is not limited in this embodiment of the present application.

[0100] Please refer to Figures 4 and 5. In some embodiments, the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the pipeline assembly 80 both include a joint pipe 83, a joint (not shown in the figures) provided on the joint pipe 83, and a connecting pipe (not shown in the figures) connected to the joint.

[0101] Part of the tube body of the refrigerant pipe assembly 81 is installed in the pipe space 16, and one end of the joint pipe 83 of the refrigerant pipe assembly 81 away from the joint of the refrigerant pipe assembly 81 is connected to the heat exchanger 92, and the other end extends out of the pipe space 16 through any one of the outlet pipe parts 71 and is connected to one end of the connecting pipe of the refrigerant pipe assembly 81 through the joint of the refrigerant pipe assembly 81. The other end of the connecting pipe of the refrigerant pipe assembly 81 is used to communicate with the external environment, that is, to communicate with the heat exchanger 92.

[0102] Part of the pipe body of the drain pipe assembly 82 is installed in the pipe space 16, and one end of the joint pipe 83 of the drain pipe assembly 82 away from the joint of the drain pipe assembly 82 is connected to the water receiving pan 60, and the other end extends to the outside of the pipe space 16 through any one of the outlet pipe parts 71 and is connected to one end of the connecting pipe of the drain pipe assembly 82 through the joint of the drain pipe assembly 82. The other end of the connecting pipe of the drain pipe assembly 82 is used to communicate with the external environment to discharge the condensed water to the outside in time.

[0103] During the actual piping process, when the pipe outlet 51 and the connecting pipe outlet are located on the side of the indoor unit 1 close to the outdoor unit, for example, when the outdoor unit is located on the left side of the indoor unit 1, and the pipe outlet 51 and the connecting pipe outlet are located on the left side in the length direction of the indoor unit 1, the connecting pipe 83 can be directly extended from the pipe outlet portion 71 of the side panel 70 located on the left side in the length direction of the indoor unit 1. At this time, the total length of the pipeline assembly 80 is shorter and the piping is simpler. In this way, while facilitating piping, it can save materials for the pipeline assembly 80 and reduce costs.

[0104] Please refer to Figures 8 to 9. In other embodiments, the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the pipeline assembly 80 both include a joint pipe 83, a joint (not shown in the figures) provided on the joint pipe 83, and a connecting pipe (not shown in the figures) connected to the joint.

[0105] Part of the tube body of the refrigerant pipe assembly 81 is installed in the pipe space 16, and the end of the joint pipe 83 of the refrigerant pipe assembly 81 away from the joint of the refrigerant pipe assembly 81 is connected to the heat exchanger 92, and the end of the connecting pipe of the refrigerant pipe assembly 81 away from the joint of the refrigerant pipe assembly 81 extends to the outside of the pipe space 16 through any outlet pipe portion 71 for communication with the external environment, that is, connected to the heat exchanger 92.

[0106] Part of the pipe body of the drain pipe assembly 82 is installed in the pipe space 16, and the end of the joint pipe 83 of the drain pipe assembly 82 away from the joint of the drain pipe assembly 82 is connected to the water receiving pan 60, and the end of the connecting pipe of the drain pipe assembly 82 away from the joint of the drain pipe assembly 82 extends to the outside of the pipe space 16 through any outlet pipe part 71 for communication with the external environment to discharge the condensed water to the outside in time.

[0107] During the actual piping process, when the pipe outlet 51 and the connecting pipe outlet are located on the side of the indoor unit 1 away from the outdoor unit, for example, when the outdoor unit is located on the right side of the indoor unit 1, and the pipe outlet 51 and the connecting pipe outlet are located on the left side in the length direction of the indoor unit 1, the connecting pipe can be directly extended from the pipe outlet portion 71 of the side panel 70 located on the right side in the length direction of the indoor unit 1. At this time, the total length of the pipeline assembly 80 is shorter and the piping is simpler. In this way, while facilitating piping, it can save materials for the pipeline assembly 80 and reduce costs.

[0108] Furthermore, to enhance the versatility of this embodiment of the present application, the tube body of the joint pipe 83 of the refrigerant pipe assembly 81, which is installed in the pipe space 16, extends to the middle of the pipe space 16, and the tube body of the joint pipe 83 of the drain pipe assembly 82, which is installed in the pipe space 16, extends to the middle of the pipe space 16, along the length direction of the indoor unit 1. Thus, in actual installation conditions, regardless of whether the outdoor unit is located on the left or right side of the indoor unit 1, the connecting pipe only needs to extend to the middle of the pipe space 16 to connect to the joint pipe 83 via the joint, and the total length of the pipe assembly 80 is not excessively long. This facilitates pipe routing, saves material for the pipe assembly 80, and reduces costs. It should be noted that when the opening of the joint for connecting with the connecting pipe is opposite to the end face of the end of the connecting pipe connected to the joint, a transition structure may be provided to achieve connection between the connecting pipe and the joint, or the connecting pipe may be configured as a flexible tube to achieve connection between the connecting pipe and the joint by rotation, but this embodiment is not limited to this.

[0109] In some embodiments, please refer to Figures 3 to 5. The indoor unit 1 may further include a water pump structure 95. The water receiving tray 60 and the end of the joint pipe 83 of the drain pipe assembly 82 away from the joint are respectively connected to the water pump structure 95, and the end of the joint pipe 83 of the drain pipe assembly 82 away from the water pump structure 95 is connected to one end of the connecting pipe of the drain pipe assembly 82 through the joint of the drain pipe assembly 82.

[0110] In this way, when the water pump structure 95 is in operation, the condensed water in the water receiving pan 60 can be pumped out, thereby improving the fluidity of the condensed water and preventing the condensed water from accumulating in the indoor unit 1, thereby preventing the generation of odor and the breeding of bacteria. At the same time, the pipe space 16 can also be used to accommodate the water pump structure 95, thereby achieving higher space utilization.

[0111] Furthermore, the water pump structure includes a water pump and a water pump connector installed within the pipe space 16. The water pump is housed within the water pump connector. The water pump connector has a first interface and a second interface. The first interface is connected to the pipe connection port via a pipe, and the second interface is connected to the end of the drain pipe assembly 82 away from the connector. It is understood that when the water pump is in operation, condensed water from the water receiving pan 60 can be pumped out and transferred sequentially from the pipe connection port, the first interface, the interior of the water pump connector, the interior of the water pump, the second interface, and the connector pipe 83, ultimately flowing through the connector and the connecting pipe to the outside. This prevents condensed water from accumulating within the indoor unit 1, thereby preventing the generation of odor and bacterial growth. Furthermore, while the water pump is fixedly installed by the water pump connector, condensed water can be circulated through the interior of the water pump connector.

[0112] Please refer to FIG. 4 and FIG. 5 . In some embodiments, the refrigerant pipe assembly 81 and the joint pipe 83 of the drain pipe assembly 82 may include a first pipe segment 831 and a second pipe segment 832 .

[0113] In the refrigerant pipe assembly 81, one end of the first pipe segment 831 communicates with the heat exchanger 92, and the second pipe segment 832 is at least partially installed in the pipe running space 16. One end of the second pipe segment 832 communicates with the other end of the first pipe segment 831, and the other end communicates with one end of a connecting pipe to the refrigerant pipe assembly 81 via a connector of the refrigerant pipe assembly 81. In the drain pipe assembly 82, one end of the first pipe segment 831 communicates with the water receiving pan 60, and the second pipe segment 832 is at least partially installed in the pipe running space 16. One end of the second pipe segment 832 communicates with the other end of the first pipe segment 831, and the other end communicates with one end of the connecting pipe of the drain pipe assembly 82 via a connector of the drain pipe assembly 82.

[0114] In some configurations, the other end of the first pipe segment 831 and the second pipe segment 832 of either the refrigerant pipe assembly 81 or the drain pipe assembly 82 is connected to one end of the second pipe segment 832 via an adapter (not shown), creating an angle between the first pipe segment 831 and the second pipe segment 832. This allows the adapter to change the direction of the second pipe segment 832 based on the actual installation location of the outdoor unit, allowing for selective rerouting of the second pipe segment 832, resulting in greater versatility.

[0115] In other structural forms, whether the first pipe section 831 or the second pipe section 832 of the refrigerant pipe assembly 81 or the drain pipe assembly 82, the second pipe section 832 is formed as a rotatable flexible pipe, so that an angle is formed between the first pipe section 831 and the second pipe section 832. In this way, the direction of the second pipe section 832 can be changed by rotating the second pipe section 832 according to the actual installation location of the outdoor unit, so that the direction of the second pipe section 832 can be selectively changed, which increases versatility.

[0116] Please refer to Figures 8 to 9. In some embodiments, the refrigerant pipe assembly 81 also includes an insulation sleeve 813. The insulation sleeve 813 can be made of glass wool, rubber sponge or polyurethane, etc., so that the insulation sleeve 813 has excellent thermal insulation performance, corrosion resistance and moisture resistance, etc., and also has good processing performance. It can be processed into various shapes and thicknesses to adapt to joint pipes 83, joints and connecting pipes of different shapes and sizes.

[0117] The insulation sleeve 813 wraps around at least a portion of the outside of the joint pipe 83 and the outside of the joint. The insulation sleeve 813 also wraps around the outside of the connecting pipe. Thus, by providing the insulation sleeve 813 around at least a portion of the outside of the joint pipe 83 and the outside of the connecting pipe, at least a portion of the joint pipe 83 and the connecting pipe can be insulated, thereby preventing a significant temperature difference between the air inside the joint pipe 83 and the air outside the joint pipe 83, and also preventing a significant temperature difference between the air inside the connecting pipe and the air outside the connecting pipe, thereby reducing the possibility of condensation forming on the inner pipe walls of the joint pipe 83 and the inner pipe walls of the connecting pipe.

[0118] Furthermore, when projected along the length of the indoor unit 1, the projection of the insulation sleeve 813 on the side panel 70 is located within the outlet pipe portion 71. Thus, the cross-sectional area of ​​the outlet pipe portion 71 is greater than or equal to the cross-sectional area of ​​the insulation sleeve 813, so that when the insulation sleeve 813 passes through the outlet pipe portion 71, the outlet pipe portion 71 can allow the insulation sleeve 813 to pass through. For example, when the outlet pipe portion 71 is a pipe notch 71a, the outlet pipe notch 71a can allow the insulation sleeve 813 to pass through, and prevent the wall of the outlet pipe notch 71a from squeezing the outer wall of the insulation sleeve 813, thereby preventing the inner wall of the insulation sleeve 813 from excessively squeezing the joint pipe 83, the joint, or the connecting pipe, thereby causing damage to the joint pipe 83, the joint, or the connecting pipe.

[0119] Continuing to refer to Figures 8 and 9, in some embodiments, a pipe outlet notch 71a is formed below the side panel 70 along the vertical direction of the indoor unit 1. It is understood that when a worker is inserting the connecting pipe or the joint pipe 83 of the pipe assembly 80 through the pipe outlet notch 71a, the height required for the worker to reach can be appropriately lowered, thereby facilitating the worker's operation and improving the worker's safety during work.

[0120] Since the outlet notch 71a is formed below the side panel 70, in this embodiment, the outlet notch 71a can be positioned opposite the pipe space 16 in the longitudinal direction of the indoor unit 1. In this case, the pipe space 16 can be defined by the surface of the diffuser chamber lower shell 50 facing away from the bottom wall of the diffuser chamber 12, the surface of the water receiving tray 60 facing away from the bottom wall of the heat exchange chamber 13, and the two side panels 70. Thus, the portion of the connecting pipe or joint pipe 83 of the pipe assembly 80 installed within the pipe space 16 can have a shorter route when passing through the outlet notch 71a, thereby reducing the length of the connecting pipe or joint pipe 83, thereby reducing its usage and lowering costs.

[0121] To prevent damage to the pipe assembly 80 when passing through the pipe outlet notch 71a, the wall of the pipe outlet notch 71a in this embodiment can be smoothly rounded. Thus, there are no sharp edges on the wall of the pipe outlet notch 71a. This prevents the joint pipe 83 or connecting pipe in the pipe assembly 80 from being scratched by the sharp edges when it contacts the wall of the pipe outlet notch 71a, thereby preventing leakage of refrigerant or condensed water. This significantly extends the service life of the pipe assembly 80.

[0122] Further, referring to Figures 8 and 9, the housing 10 further includes a support member 33, which is disposed below the pipe outlet notch 71a and connected to the side panel 70. The support member 33 is configured to support the pipe assembly 80. For example, if the joint pipe 83 of the pipe assembly 80 extends through the pipe outlet notch 71a, the support member 33 is used to support the joint pipe 83. If the connecting pipe of the pipe assembly 80 extends through the pipe outlet notch 71a, the support member 33 is used to support the connecting pipe. In this way, the support member 33 can support the joint pipe 83 or the connecting pipe of the pipe assembly 80, thereby preventing the pipe joint pipe 83 or the connecting pipe from falling through the pipe outlet notch 71a, causing loss of the joint pipe 83 or the connecting pipe, thereby extending the service life of the pipe assembly 80.

[0123] In some structural forms, referring to Figures 9 to 11 , the side plate 70 includes a plate body 72 and a first flange 73 connected to the lower edge of the plate body 72. The plate body 72 defines the cavity sidewalls of the diffuser cavity 12, the cavity sidewalls of the heat exchange cavity 13, and the cavity sidewalls of the fan cavity 11, and the pipe outlet notch 71a is formed below the plate body 72. The support member 33 includes a connected support portion 331 and a first connecting portion 332, with the support portion 331 and the first connecting portion 332 being arranged at an angle.

[0124] The support portion 331 is configured to support the connection pipe or joint pipe 83 of the pipeline assembly 80 and is fixedly connected to the plate body 72, and the first connection portion 332 is fixedly connected to the first flange 73. In this way, the support portion 331 and the first connection portion 332 can be used to achieve connection with the side plate 70, thereby increasing the connection area between the side plate 70 and the support member 33 and improving the connection strength between the two. In addition, the support portion 331 and the first connection portion 332 form an angle with each other, so that the side plate 70 and the support member 33 have connection positions in two directions at the angle, which can also improve the connection strength between the side plate 70 and the support member 33.

[0125] Furthermore, the housing 10 includes a sheet metal member 31, which is attached to the outside of the water tray 60 via bolts or other means. The sheet metal member 31 includes a main portion 311 and a second flange 312. The lower insulation layer 943 is sandwiched between the main portion 311 of the sheet metal member 31 and the water tray 60. The support member 33 also includes a second connecting portion 333, which is connected to the first connecting portion 332 and arranged at an angle thereto. The second connecting portion 333 is connected to the second flange 312 of the sheet metal member 31. In this way, the support member 33, in addition to being connected to the side panel 70, can enhance the overall connection to the housing 10 through its connection to the second flange 312 of the sheet metal member 31.

[0126] Referring to FIG. 1 , in some embodiments, the indoor unit 1 further includes a plastic plate 96 , which abuts the side panel and is projected along the length of the indoor unit. A portion of the plastic plate 96 is positioned within the pipe outlet notch 71 a so that the pipe assembly is spaced from the wall of the pipe outlet notch 71 a. It is understood that the plastic plate 96 may be a side wall of the partition 99 , or the plastic plate 96 may be a separate component, and this is not a limitation of the present application. The provision of the plastic plate 96 reduces the likelihood of contact between the pipe assembly and the wall of the pipe outlet notch 71 a, thereby more effectively preventing the wall of the pipe outlet notch 71 a from scratching the pipe assembly 80. Furthermore, since the plastic plate 96 is made of plastic, it can prevent itself from scratching the pipe assembly 80 when in contact with the pipe assembly 80.

[0127] 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, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate 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.

[0128] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An indoor unit, wherein, Comprising: A housing, the housing includes two side plates arranged at intervals and opposite to each other, a pipe routing space is configured between the two side plates, and each side plate has a pipe outlet portion communicating with the pipe routing space; And A pipe assembly, the pipe assembly can be partially installed in the pipe routing space and extends out of the pipe routing space through any one of the two pipe outlet portions.

2. The indoor unit according to claim 1, wherein, The housing includes a diffuser portion, and the diffuser portion forms a diffuser cavity; Wherein, the bottom wall of the diffuser cavity is inclined or recessed to at least cooperate with the two side plates to define the pipe routing space.

3. The indoor unit according to claim 2, wherein, The housing further includes a heat exchange portion and a blower portion, and the two sides of the diffuser portion along its length direction are respectively connected to the heat exchange portion and the blower portion; The heat exchange portion forms a heat exchange cavity, the blower portion forms a blower cavity, and the bottom wall of the diffuser cavity, the bottom wall of the heat exchange cavity and the two side plates cooperate to define the pipe routing space; Wherein, the heat exchange cavity, the diffuser cavity and the blower cavity are arranged in sequence, and in the arrangement direction of the heat exchange cavity, the diffuser cavity and the blower cavity, the pipe routing space is located between the heat exchange cavity and the blower cavity.

4. The indoor unit according to claim 3, wherein, In the arrangement direction of the heat exchange cavity, the diffuser cavity and the blower cavity, the pipe routing space is located in the middle of the indoor unit.

5. The indoor unit according to claim 3, wherein, The side plate includes: A plate body, defining the side wall of the diffuser cavity, the side wall of the heat exchange cavity and the side wall of the blower cavity; and A first flanging, connected to the lower edge of the plate body.

6. The indoor unit according to claim 3, wherein, A pipe outlet is provided above the pipe routing space, and the pipe outlet communicates the pipe routing space and the heat exchange cavity and is used for the pipe assembly to pass through.

7. The indoor unit according to claim 6, wherein, The indoor unit further includes: A partition, the partition is located between the side plate and the diffuser portion along the length direction of the indoor unit, and the pipe outlet is opened on the partition.

8. The indoor unit according to claim 6, wherein, The heat exchange portion includes a water receiving tray, the water receiving tray forms the bottom wall of the heat exchange cavity, and is provided with a connecting pipe portion communicating with the water receiving tray, and the connecting pipe portion is used for communicating with the pipe assembly; Wherein, the pipe outlet and the connecting pipe portion are located on the same side of the pipe routing space in the length direction of the indoor unit, and in the up-down direction of the indoor unit, the projection of the pipe outlet on the housing at least partially overlaps with the projection of the connecting pipe portion on the housing.

9. The indoor unit according to any one of claims 1 to 8, wherein, Along the up-down direction of the indoor unit, the pipe outlet portion is a pipe outlet notch formed at the lower part of the side plate.

10. The indoor unit according to claim 9, wherein, The wall of the pipe outlet notch is in smooth transition.

11. The indoor unit according to claim 9, wherein, The housing further includes a support member, the support member is arranged below the pipe outlet notch and is connected to the side plate; Wherein, the support member is configured to support the pipe assembly.

12. The indoor unit according to claim 9, wherein, The indoor unit further includes: A plastic plate, the plastic plate abuts against the side plate, and in the projection along the length direction of the indoor unit, a part of the plastic plate is located in the pipe outlet notch, so that the pipe assembly is spaced from the wall of the pipe outlet notch.

13. The indoor unit according to claim 1, wherein, The indoor unit further includes a heat exchanger housed in the housing, and the housing further includes a water receiving tray arranged between the two side plates, and the water receiving tray is located below the heat exchanger; Wherein, the pipeline assembly is communicated with the water receiving tray and / or the heat exchanger.

14. The indoor unit according to claim 13, wherein, The pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint; A partial pipe body of the joint pipe is installed in the pipe routing space, and one end of the joint pipe away from the joint is communicated with the water receiving tray or the heat exchanger, and the other end extends out of the pipe routing space through any one of the outlet pipe parts and is communicated with one end of the connecting pipe through the joint, and the other end of the connecting pipe is used for communicating with the external environment.

15. The indoor unit according to claim 13, wherein, The pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint; A partial pipe body of the joint pipe and a partial pipe body of the connecting pipe are both installed in the pipe routing space, one end of the joint pipe away from the joint is communicated with the water receiving tray or the heat exchanger, and one end of the connecting pipe away from the joint extends out of the pipe routing space through any one of the outlet pipe parts for communicating with the external environment.

16. The indoor unit according to claim 15, wherein, In the length direction of the indoor unit, the pipe body of the joint pipe installed in the pipe routing space extends to the middle of the pipe routing space.

17. The indoor unit according to any one of claims 14 to 16, wherein, The joint pipe includes: A first pipe section, one end of which is communicated with the water receiving tray or the heat exchanger; and A second pipe section, at least part of which is installed in the pipe routing space, one end of the second pipe section is communicated with the other end of the first pipe section, and the other end is communicated with one end of the connecting pipe through the joint; Wherein, the other end of the first pipe section is communicated with one end of the second pipe section through a swivel joint, so that an angle is formed between the first pipe section and the second pipe section; or, the second pipe section is formed as a rotatable flexible pipe, so that an angle is formed between the first pipe section and the second pipe section.

18. The indoor unit according to any one of claims 14 to 16, wherein, The pipeline assembly includes a refrigerant pipe assembly and a drain pipe assembly, and both the refrigerant pipe assembly and the drain pipe assembly include the joint pipe, the joint, and the connecting pipe; Wherein, one end of the joint pipe of the refrigerant pipe assembly away from the joint is communicated with the heat exchanger, and the other end is communicated with one end of the connecting pipe of the refrigerant pipe assembly through the joint of the refrigerant pipe assembly; One end of the joint pipe of the drain pipe assembly away from the joint is communicated with the water receiving tray, and the other end is communicated with one end of the connecting pipe of the drain pipe assembly through the joint of the drain pipe assembly; or, the drain pipe assembly further includes a water pump structure, the water receiving tray and one end of the joint pipe of the drain pipe assembly away from the joint are respectively communicated with the water pump structure, and one end of the joint pipe of the drain pipe assembly away from the water pump structure is communicated with one end of the connecting pipe of the drain pipe assembly through the joint of the drain pipe assembly.

19. The indoor unit according to claim 18, wherein, The refrigerant pipe assembly further includes a heat preservation sleeve, and the heat preservation sleeve is wrapped around at least part of the outer side of the joint pipe and the outer side of the joint, and the heat preservation sleeve is also wrapped around the outer side of the connecting pipe; Wherein, when projected along the length direction of the indoor unit, the projection of the heat preservation sleeve on the side plate is located within the outlet pipe part.

20. A heating, ventilation, and air conditioning (HVAC) device, wherein, An outdoor unit and the indoor unit according to any one of claims 1 to 19, wherein the outdoor unit is connected to the indoor unit through the pipeline assembly.

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