Indoor unit and heating and ventilation equipment

Abstract

The invention discloses an indoor unit and heating and ventilation equipment, the indoor unit comprises a machine shell and a pipeline assembly, the machine shell comprises two side plates which are oppositely arranged in a spaced mode, a pipe passing space is formed between the two side plates, each side plate is provided with a pipe outlet part communicating with the pipe passing space, and the pipeline assembly can be partially installed in the pipe passing space; and any one of the two pipe outlet parts extends out of the pipe passing space. According to the technical scheme, the pipe arrangement path of the pipeline assembly can be simplified, workers can arrange pipes conveniently, materials of the pipeline assembly are saved, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of heating, ventilation and air conditioning (HVAC) equipment, and particularly relates to an indoor unit and an HVAC equipment applying the indoor unit. Background Art

[0002] HVAC equipment generally includes two parts: an indoor unit and an outdoor unit. A refrigerant cycle is formed between the indoor unit and the outdoor unit, so that the indoor unit can send out air flow at a required temperature in an indoor use environment, thereby making the indoor environmental temperature more stable.

[0003] In the prior art, for the pipeline assembly of the indoor unit of HVAC equipment, such as the refrigerant pipeline assembly, its joints are usually arranged on any side of the casing along its length direction. When the placement position of the outdoor unit is on the opposite side of the side where the pipeline assembly is arranged, at this time, the connecting pipe in the pipeline assembly that is connected to the outdoor unit needs to bypass the outside of the indoor unit in order to be connected to the joint pipe of the pipeline assembly. This will make the length of the connecting pipe longer and the pipe routing complex, which is not convenient for the staff to perform pipe laying operations. Summary of the Invention

[0004] Embodiments of the present application provide an indoor unit and an HVAC equipment, which can simplify the pipe routing path of the pipeline assembly, facilitate the staff to perform pipe laying, save the material used for the pipeline assembly, and reduce costs.

[0005] In a first aspect, embodiments of the present application provide an indoor unit, which includes:

[0006] A casing, the casing includes two spaced and oppositely arranged side plates, a pipe routing space is configured between the two side plates, and each side plate has an outlet part communicating with the pipe routing space; and

[0007] A pipeline assembly, the pipeline assembly can be partially installed in the pipe routing space and extends out of the pipe routing space through any one of the two outlet parts.

[0008] In some embodiments, the casing includes a diffuser part, and the diffuser part forms a diffuser cavity;

[0009] 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.

[0010] In some embodiments, the casing further includes a heat exchange part and a fan part, and two sides of the diffuser part along its width direction are respectively connected to the heat exchange part and the fan part;

[0011] The heat exchange part forms a heat exchange cavity, the fan part forms a fan 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;

[0012] Wherein, the heat exchange chamber, the diffuser chamber, and the blower chamber are arranged in sequence, and in the arrangement direction of the heat exchange chamber, the diffuser chamber, and the blower chamber, the pipe routing space is located between the heat exchange chamber and the blower chamber.

[0013] In some embodiments, in the arrangement direction of the heat exchange chamber, the diffuser chamber, and the blower chamber, the pipe routing space is located in the middle of the indoor unit.

[0014] In some embodiments, a pipe outlet is provided above the pipe routing space. The pipe outlet communicates the pipe routing space and the heat exchange chamber and is used for the pipe assembly to pass through.

[0015] In some embodiments, the indoor unit further includes:

[0016] A partition plate, which is located between the side plate and the diffuser part along the length direction of the indoor unit, and the pipe outlet is formed on the partition plate.

[0017] In some embodiments, the heat exchange part 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 part communicating with the water receiving tray. The connecting pipe part is used for communicating with the pipe assembly;

[0018] Wherein, the pipe outlet and the connecting pipe part are located on any one side of the pipe routing space in the length direction of the indoor unit, and when projected along the up and down direction of the indoor unit, at least part of the projection of the pipe outlet on the housing overlaps with the projection of the connecting pipe part on the housing.

[0019] In some embodiments, along the up and down direction of the indoor unit, the pipe outlet part is an outlet notch formed below the side plate.

[0020] In some embodiments, the wall of the outlet notch is in smooth transition.

[0021] In some embodiments, the housing further includes a support member. The support member is arranged below the outlet notch and is connected to the side plate;

[0022] Wherein, the support member is configured to support the setting of the pipe assembly.

[0023] In some embodiments, the indoor unit further includes:

[0024] A plastic plate, which abuts against the side plate, and when projected along the length direction of the indoor unit, part of the plastic plate is located within the outlet notch so that the pipe assembly is spaced apart from the wall of the outlet notch.

[0025] In some of these embodiments, the indoor unit further includes a heat exchanger housed within the housing, and the housing further includes a water receiving tray disposed between the two side plates, with the water receiving tray located below the heat exchanger;

[0026] Wherein, the pipeline assembly communicates with the water receiving tray and / or the heat exchanger.

[0027] In some of these embodiments, the pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint;

[0028] A partial pipe body of the joint pipe is installed within the pipe routing space, and one end of the joint pipe away from the joint communicates 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 pipe outlet portions and communicates 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.

[0029] In some of these embodiments, the pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint;

[0030] A partial pipe body of the joint pipe and a partial pipe body of the connecting pipe are both installed within the pipe routing space, one end of the joint pipe away from the joint communicates 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 pipe outlet portions for communicating with the external environment.

[0031] In some of these embodiments, in the length direction of the indoor unit, the pipe body of the joint pipe installed within the pipe routing space extends to the middle of the pipe routing space.

[0032] In some of these embodiments, the joint pipe includes:

[0033] A first pipe segment, with one end communicating with the water receiving tray or the heat exchanger; and

[0034] A second pipe segment, at least partially installed within the pipe routing space, with one end of the second pipe segment communicating with the other end of the first pipe segment, and the other end communicating with one end of the connecting pipe through the joint;

[0035] Wherein, the other end of the first pipe segment communicates with one end of the second pipe segment through a swivel joint, so that there is an angle between the first pipe segment and the second pipe segment; or, the second pipe segment is formed as a rotatable flexible pipe, so that there is an angle between the first pipe segment and the second pipe segment.

[0036] In some of these embodiments, the pipeline assembly includes a refrigerant pipe assembly and a drain pipe assembly. Both the refrigerant pipe assembly and the drain pipe assembly include the connecting pipe, the joint, and the connecting tube;

[0037] Among them, one end of the connecting pipe of the refrigerant pipe assembly, which is far from the joint, communicates with the heat exchanger, and the other end communicates with one end of the connecting tube of the refrigerant pipe assembly through the joint of the refrigerant pipe assembly;

[0038] One end of the connecting pipe of the drain pipe assembly, which is far from the joint, communicates with the water receiving tray, and the other end communicates with one end of the connecting tube of the drain pipe assembly through the joint of the drain pipe assembly; alternatively, the drain pipe assembly further includes a water pump structure. The water receiving tray and one end of the connecting pipe of the drain pipe assembly, which is far from the joint, communicate with the water pump structure respectively, and one end of the connecting pipe of the drain pipe assembly, which is far from the water pump structure, communicates with one end of the connecting tube of the drain pipe assembly through the joint of the drain pipe assembly.

[0039] In some of these embodiments, the refrigerant pipe assembly further includes a heat insulation sleeve. The heat insulation sleeve wraps around at least part of the outer side of the connecting pipe and the outer side of the joint, and the heat insulation sleeve also wraps around the outer side of the connecting tube;

[0040] Among them, when projected along the length direction of the indoor unit, the projection of the heat insulation sleeve on the side plate is located within the pipe outlet portion.

[0041] In a second aspect, an embodiment of the present application provides a heating, ventilation, and air conditioning (HVAC) device. The HVAC device includes an outdoor unit and the indoor unit as described above. The outdoor unit is connected to the indoor unit through the pipeline assembly.

[0042] Based on the indoor unit and the HVAC device of the embodiments of the present application, a part of the pipeline assembly is installed through the pipe routing space, and both side plates are provided with pipe outlet portions communicating with the pipe routing space. In this way, the pipe routing space can accommodate a part of the pipeline assembly, and any one of the pipe outlet portions can be selected for pipe outlet. Based on this, no matter which side of the indoor unit the outdoor unit is located along its length direction, a part of the pipeline assembly of this embodiment can be accommodated in the pipe routing space and extended through the pipe outlet portion on the side close to the outdoor unit to be connected to the outdoor unit. Therefore, compared with the form of routing the pipeline around the outer side of the casing of the indoor unit, the indoor unit of this embodiment can make the pipe routing path of the pipeline assembly shorter. Therefore, the length of the pipeline assembly can be shorter, the cost can be reduced, and the pipe routing is simpler, which is convenient for the staff to perform the pipe connection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0044] Figure 1 It is a schematic structural diagram of an indoor unit of a heating, ventilation, and air conditioning (HVAC) device of the present application;

[0045] Figure 2 It is Figure 1 A cross-sectional view taken along the line A-A shown;

[0046] Figure 3 It is Figure 1 An exploded structural diagram of the indoor unit of the HVAC device shown;

[0047] Figure 4 It is Figure 1 A schematic structural diagram of the indoor unit of the HVAC device from a certain perspective shown;

[0048] Figure 5 It is Figure 4 A partial enlarged view at position B in

[0049] Figure 6 It is Figure 4 A schematic structural diagram of the hidden pipeline assembly of the indoor unit of the HVAC device shown;

[0050] Figure 7 It is Figure 3 A schematic structural diagram of the water receiving tray of the indoor unit shown;

[0051] Figure 8 It is a schematic structural diagram of another embodiment of the indoor unit of the HVAC device of the present application;

[0052] Figure 9 It is Figure 8 A partial enlarged view at position C in

[0053] Figure 10 It is Figure 3 A schematic structural diagram of the support member of the indoor unit shown;

[0054] Figure 11 It is Figure 3 A schematic structural diagram of the side plate of the indoor unit shown;

[0055] Figure 12 It is Figure 1 A schematic structural diagram of a partial structure of the indoor unit of the HVAC device shown.

[0056] Explanation of the reference numerals in the drawings:

[0057] 1. Indoor unit; 10. Cabinet; 11. Fan chamber; 12. Diffuser chamber; 13. Heat exchange chamber; 14. Return air inlet; 15. Air outlet; 16. Pipe routing space; 17. Diffuser part; 18. Heat exchange part; 19. Fan part; 20. First housing; 20a. Upper cover; 21. Upper shell of fan chamber; 22. Upper shell of diffuser chamber; 23. Upper shell of heat exchange chamber; 30. Second housing; 31. Sheet metal part; 311. Main body part; 312. Second flanging; 33. Support member; 331. Support part; 332. First connection part; 333. Second connection part; 40. Scroll tongue; 50. Lower shell of diffuser chamber; 51. Pipe outlet; 60. Drain pan; 61. Pipe connection part; 70. Side plate; 71. Pipe outlet part; 71a. Pipe outlet notch; 72. Plate main body; 73. First flanging; 80. Pipe assembly; 81. Refrigerant pipe assembly; 811. Gas pipe; 812. Liquid pipe; 813. Thermal insulation sleeve; 82. Drain pipe assembly; 83. Connector pipe; 831. First pipe section; 832. Second pipe section; 91. Fan; 911. Impeller; 913. Motor; 92. Heat exchanger; 93. Electric control box; 931. Electric wire; 94. Thermal insulation layer; 941. Upper thermal insulation layer; 943. Lower thermal insulation layer; 95. Water pump structure; 96. Plastic plate; 98. Grille; 99. Partition; 99a. Accommodation cavity.

[0058] The realization of the purpose of this application, its functional features and advantages will be further described in combination with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0059] To make the purpose, technical solutions and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0060] When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with this application. On the contrary, they are only examples of devices and methods that are consistent with some aspects of this application as detailed in the appended claims.

[0061] In the description of this application, it should be understood that terms such as "first", "second", etc. are only used for descriptive purposes and cannot 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 stated, "a plurality of" means two or more. "And / or" describes the associated relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0063] Please refer to Figure 1 , an embodiment of this application provides a heating, ventilation and air conditioning (HVAC) device, which may also be referred to as an air conditioning HVAC device or an HVAC air conditioner. The HVAC device 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 ceiling for supplying air indoors. Please refer to Figures 1 to 2 , the indoor unit 1 may include a casing 10, a heat exchanger 92, a pipeline assembly 80, a fan 91, and an electric control box 93. The indoor unit 1 is connected to the outdoor unit through the pipeline assembly 80. The overall contour of the indoor unit 1 may be generally rectangular parallelepiped-shaped, having an up-down direction, a width direction, and a length direction, and the up-down direction, the width direction, and the length direction are pairwise arranged at an angle.

[0064] Among them, the casing 10 is used to construct the air duct of the indoor unit 1 suitable for the HVAC device for gas flow. Specifically, the outer contour of the casing 10 may be generally rectangular parallelepiped-shaped. Please refer to Figure 2 , a blower cavity 11, a diffuser cavity 12, and a heat exchange cavity 13 are formed in the casing 10 and are sequentially connected. In addition, the casing 10 is also formed with an air return opening 14 communicating with the blower cavity 11 and an air outlet 15 communicating with the heat exchange cavity 13, so that the air flow can enter the casing 10 from the air return opening 14, and sequentially pass through the blower cavity 11, the diffuser cavity 12, and the heat exchange cavity 13, and finally flow out from the air outlet 15. It should be noted that the casing 10 may be the housing constituting the indoor unit 1, or there may be an outer casing outside the casing 10. The embodiments of this application do not limit this.

[0065] The following explains the related structure of the casing 10 with reference to the drawings. Please refer to Figures 1 to 3, in some embodiments of the present application, for the convenience of assembling the indoor unit 1, the housing 10 includes a first housing 20 and a second housing 30. The first housing 20 is connected to the second housing 30 to form the above-mentioned housing by splicing. Among them, the first housing 20 and the second housing 30 can be made of metal materials such as aluminum alloy or stainless steel respectively 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 materials to achieve the light weight of the housing. The present application does not limit this. For example, the housing can adopt a combination of the first housing 20 made of metal material and the second housing 30 made of plastic material. In addition, the embodiments of the present application do not limit the connection method between the first housing 20 and the second housing 30, and they can be connected by means of snap connection, riveting, welding, bolt connection, etc. alone or in combination.

[0066] Specifically, please refer to Figures 2 to 3 , the first housing 20 includes an upper cover 20a and two side plates 70. The two side plates 70 are spaced apart and oppositely arranged in the length direction, defining the width of the first housing 20; the upper cover 20a is generally arranged above the two side plates 70 and extends along the width direction, and the two sides of the upper cover 20a in the length direction are respectively connected to the two side plates 70; thus, the upper cover 20a and the two side plates 70 are spliced to form the first housing 20 in the shape of a cover. Of course, the upper cover 20a and the side plate 70 can be integrally arranged or separately arranged, and the two can be made of the same or different materials and connected by means of snap connection, riveting, welding, bolt connection, etc. The present application will not elaborate here. Correspondingly, the second housing 30 is spaced apart from the upper cover 20a in the up-down direction and also extends along the width direction. The second housing 30 is arranged between the two side plates 70, and the two sides of the second housing 30 in the length direction are respectively connected to the two side plates 70. In this way, the first housing 20, the second housing 30, and the two side plates 70 are spliced to form the above-mentioned housing.

[0067] At least one of the first housing 20 and the second housing 30 forms the above-mentioned air return opening 14, that is to say, the air return opening 14 can be arranged on the first housing 20 or the second housing 30, or can be configured by the first housing 20 and the second housing 30.

[0068] Please continue to refer to Figures 2 to 3, in the width direction, the upper cover 20a includes a blower chamber upper housing 21, a diffuser chamber upper housing 22, and a heat exchange chamber upper housing 23 that are sequentially connected, and all three are disposed between two side plates 70; the second housing 30 includes a connected diffuser chamber lower housing 50 and a water receiving tray 60, and similarly, both are also disposed between two side plates 70. The blower chamber upper housing 21 and the side plate 70 define a blower chamber 11, that is, the side plate 70 defines the chamber side wall of the blower chamber 11. The diffuser chamber upper housing 22, the diffuser chamber lower housing 50, and the side plate 70 jointly enclose to form a diffuser chamber 12. Specifically, the diffuser chamber upper housing 22 defines the chamber top wall of the diffuser chamber 12, and it can be that the diffuser chamber lower housing 50 defines the chamber bottom wall of the diffuser chamber 12, and the side plate 70 defines the chamber side wall of the diffuser chamber 12. The heat exchange chamber upper housing 23, the water receiving tray 60, and the side plate 70 enclose to form a heat exchange chamber 13. Specifically, the heat exchange chamber upper housing 23 defines the chamber top wall of the heat exchange chamber 13, the water receiving tray 60 defines the chamber bottom wall of the heat exchange chamber 13, and the side plate 70 defines the chamber side wall of the heat exchange chamber 13.

[0069] The housing 10 further includes a volute tongue 40. Among them, the volute tongue is connected to the diffuser chamber lower housing 60 and is located at the transition between the blower chamber 11 and the diffuser chamber 12. The volute tongue 40 can guide the air flow sent out by the blower 91 into the diffuser chamber 12, that is, it is used to guide the air flow in the blower chamber 11 to the diffuser chamber 12.

[0070] In order to make the air extraction of the blower 91 smoother, the distance between the air return port 14 and the inlet of the blower chamber 11 should be as short as possible to shorten the air flow path. Optionally, the air return port 14 can be arranged directly opposite to the inlet of the blower chamber 11. For example, in the embodiment of the present application, the lower end of the upper cover 20a (the blower chamber upper housing 21) in the up and down direction is spaced from the water receiving tray 60, and the lower end of the upper cover 20a and the water receiving tray 60 at least define the air return port 14. In this embodiment, the air return port 14 is located below the blower chamber 11, and after the gas enters the air return port 14, it can flow into the blower chamber 11 along a shorter path, so that the loss of gas can be effectively reduced, which is beneficial to improving the smoothness of air extraction.

[0071] In a structural form, the second housing 30 further includes a grille 98. The grille 98 is at least connected to the lower ends of the diffuser chamber lower housing 50 and the blower chamber upper housing 21, and a plurality of through holes are formed thereon. The gas passing through the air return port 14 can enter the blower chamber 11 through the plurality of through holes. The setting of the grille 98 can effectively prevent larger foreign objects from entering the blower chamber 11 and affecting the operation of the blower 91. The grille 98 is arranged in a grid shape to increase the through holes as much as possible and reduce the influence on the air flow.

[0072] Please continue to refer to Figures 2 to 3, the blower 91 is disposed within the blower chamber 11 and is capable of extracting the air current at the air return opening 14 and performing work on it to cause it to flow to the diffuser chamber 12 at a relatively high flow rate, providing power for the air current circulation in the above-described air duct. The blower 91 can be a cross-flow blower, a centrifugal blower, an axial-flow blower, etc. Among them, the cross-flow blower has the advantages of energy conservation, large air volume, low noise, and simple installation. Taking the cross-flow blower as an example, the blower 91 can include an impeller 911 and a motor 913. The impeller 911 can be arranged in a long cylindrical shape and is housed within the blower chamber 11. The motor 913 is disposed at one end of the impeller 911 and is connected to the side plate 70 of the housing, and the output shaft of the motor 913 is connected to the impeller 911 to drive the impeller 911 to rotate, such that the impeller 911 can be configured to be rotatably housed within the blower chamber 11.

[0073] The heat exchanger 92 is housed within the heat exchange chamber 13 and is located above the water receiving tray 60 in the up-down direction of the indoor unit 1. The heat exchanger 92 is used for heat exchange with the gas flowing through the heat exchange chamber 13 and passing through the heat exchanger 92, serving to cool or heat the gas. In order to increase the heat exchange area of the heat exchanger 92, the heat exchanger 92 can be arranged in a V shape, an arc shape, or a wavy shape and can be composed of a single heat exchange fin or a combination of multiple heat exchange fins.

[0074] Please continue to refer to Figures 4 to 5 , the pipeline assembly 80 is in communication with the water receiving tray 60 and / or the heat exchanger 92, that is, the pipeline assembly 80 can be separately in communication with the water receiving tray 60 or separately in communication with the heat exchanger 92, or can include two components to achieve communication with the water receiving tray 60 and the heat exchanger 92 respectively. For example, the pipeline assembly 80 can 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 can be a metal material. For example, suitable exemplary materials that can be used include but are not limited to copper, aluminum, or steel. For example, when it is made of copper, it can enable the main structure of the refrigerant pipe assembly 81 to have advantages such as good corrosion resistance and high heat transfer efficiency. Of course, the main structure of the refrigerant pipe assembly 81 can also be a plastic material, and this embodiment does not limit this. The main structure of the drain pipe assembly 82 for discharging the condensed water can be a plastic material. 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, it can enable the main structure of the refrigerant pipe assembly 81 to have advantages such as being lightweight, easy to install, and corrosion-resistant. This embodiment does not limit this.

[0075] One end of the refrigerant pipe assembly 81 communicates with the heat exchanger 92, and the other end communicates with the outdoor unit, so that the outdoor unit is communicated with the heat exchanger 92 through the refrigerant pipe assembly 81, that is, the refrigerant pipe assembly 81 plays a role in transporting the refrigerant, enabling the refrigerant to circulate between the heat exchanger 92 and the outdoor unit.

[0076] In some structural forms, the refrigerant pipe assembly 81 may include a gas pipe 811 and a liquid pipe 812. One end of the gas pipe 811 communicates with the heat exchanger 92, and the other end communicates with the outdoor unit. One end of the liquid pipe 812 communicates with the heat exchanger 92, and the other end communicates with the outdoor unit. Thus, during the refrigeration process, the refrigerant will be transported to the heat exchanger 92 in a liquid form through the liquid pipe 812. Then, the heat exchanger 92 converts the refrigerant from a liquid form to a gaseous form, and then transports it to the outdoor unit through the gas pipe 811. During this process, the refrigerant will absorb heat and take away the heat to achieve refrigeration. During the heating process, the refrigerant will be transported to the heat exchanger 92 in a gaseous form through the gas pipe 811. Then, the heat exchanger 92 converts the refrigerant from a gaseous form to a liquid form, and then transports it to the outdoor unit through the liquid pipe 812. During this process, the refrigerant will release heat to achieve heating. The following content will further elaborate on the case where the pipe routing of the HVAC equipment of the present application is facilitated in the form that the pipeline assembly 80 includes two parts, namely the refrigerant pipe assembly 81 and the drain pipe assembly 82.

[0077] One end of the drain pipe assembly 82 communicates with the water receiving tray 60, and the other end communicates with the external environment. Thus, the condensed water generated by the heat exchanger 92 during operation will flow to the water receiving tray 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 outdoors through the drain pipe assembly 82. In this way, it can avoid the accumulation of condensed water in the water receiving tray 60, resulting in the occurrence of condensed water leakage in the indoor unit 1 and the leakage into the room.

[0078] Please refer to Figures 2 to 4 , an electric control box 93 is provided with an electric control board assembly (not shown in the figure) and electric wires 931. A variety of electronic components are integrated on the electric control board assembly, which is used to electrically connect devices such as the motor 913 of the blower 91 and the heat exchanger 92 through the electric wires 931, and is used to overall control the overall operation status of the indoor unit 1. And the electric control board assembly is used to electrically connect to an external power supply through the electric wires 931 to supply power to the electric control board assembly by means of the external power supply. Inevitably, the electronic components will generate more heat during operation. In the embodiment of the present application, the electric control box 93 can be arranged close to the air duct or arranged in the air duct formed by the casing 10, so as to dissipate heat from the electric control box 93 to a certain extent by the air flow in the air duct, avoid device operation failures or damages caused by overheating of the electric control board assembly, improve the operation stability of the indoor unit 1, and extend the service life.

[0079] Please refer toFigures 2 to 3 , in some embodiments, the housing further includes a heat insulation layer 94, specifically including an upper heat insulation layer 941 and a lower heat insulation layer 943. The upper heat insulation layer 941 can be connected to one side of the upper shell 23 of the heat exchange cavity close to the heat exchanger 92, and the lower heat insulation layer 943 can be connected to one side of the water receiving tray 60 facing away from the heat exchanger 92. Thus, through the upper heat insulation layer 941 and the lower heat insulation layer 943, it can play a role in maintaining the temperature inside the casing 10 to a certain extent and reducing the probability of the energy inside the HVAC equipment being dissipated outward through the first housing 20 and the second housing 30.

[0080] Please refer to Figures 4 to 5 , in some embodiments, a pipe routing space 16 is configured between the two side plates 70, and each side plate 70 has an outlet pipe portion 71 communicating with the pipe routing space 16. The pipe assembly 80 can be partially installed in the pipe routing space 16 and extend out of the pipe routing space 16 through any one of the two outlet pipe portions 71.

[0081] It can be understood that the pipe routing space 16 can extend along the length direction of the indoor unit 1 so that both ends of the pipe routing space 16 can communicate with the outlet pipe portions 71 of the two side plates 70. Among them, the pipe routing space 16 can be defined by one or a combination of the diffuser cavity lower shell 50 of the second housing 30 and the water receiving tray 60 in cooperation with at least two side plates 70. During the actual installation process, the staff usually installs the indoor unit 1 and the outdoor unit separately and then arranges and installs the pipe assembly 80. Most of the indoor units 1 of the HVAC equipment are installed in a ceiling-mounted form. Therefore, when the pipe routing space 16 is located below the casing 10 in the up-down direction of the indoor unit 1, the height that the staff needs to reach during the layout and installation of the pipe assembly 80 can be appropriately reduced, which is convenient for the staff to operate and improves the safety of the staff during work. Of course, in other structural forms, the pipe routing space 16 can be defined by one or a combination of the blower cavity upper shell 21, the diffuser cavity upper shell 22, and the heat exchange cavity upper shell 23 of the upper cover 20a and the two side plates 70 in cooperation. Thus, the pipe routing space 16 is located above the casing 10 in the up-down direction of the indoor unit 1, and this embodiment does not limit this.

[0082] The pipe outlet portion 71 may be a pipe outlet notch 71a formed on the side plate 70. Specifically, the pipe outlet notch 71a may be a strip-shaped notch extending along the width direction of the indoor unit 1. In this way, the opening area of the pipe outlet notch 71a can be increased to allow a pipe assembly 80 with a larger size or more pipes in the pipe assembly 80 to pass through, making the versatility better. Of course, in other structural forms, the pipe outlet portion 71 may also be a pipe outlet hole formed on the side plate 70, and the pipe outlet hole is in the form of a through hole, that is, the pipe outlet hole penetrates through the opposite two plate surfaces of the side plate 70. This embodiment does not limit this. The following content will still take the pipe outlet portion 71 being configured as the pipe outlet notch 71a to further elaborate on the case where the HVAC equipment of the present application facilitates pipe routing.

[0083] In the indoor unit 1 of this embodiment, a pipe routing space 16 is provided for installing a part of the pipe assembly 80, and the pipe outlet portion 71 communicating with the pipe routing space 16 is provided on both side plates 70. In this way, the pipe routing space 16 can accommodate a part of the pipe assembly 80, and any one of the pipe outlet portions 71 can be selected for pipe outlet. Based on this, no matter where the outdoor unit is located on any side of the indoor unit 1 along its length direction, a part of the pipe assembly 80 of this embodiment can be accommodated in the pipe routing space 16 and extend out through the pipe outlet 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 housing 10 of the indoor unit 1, the indoor unit 1 of this embodiment can make the pipe routing path of the pipe assembly 80 shorter. Therefore, the length of the pipe assembly 80 can be shorter, the cost can be reduced, and the pipe routing is simpler, facilitating the pipe connection operation by the staff.

[0084] Please refer to Figures 2 to 4 , in some embodiments, the housing 10 includes a diffuser portion 17, and the diffuser portion 17 forms a diffuser chamber 12. The part of the side plate 70 located in the diffuser portion 17 defines the chamber side wall of the diffuser chamber 12. It can be understood that the diffuser portion 17 includes an upper diffuser chamber shell 22, a lower diffuser chamber shell 50, and the part of the side plate 70 located in the diffuser portion 17.

[0085] Among them, the surfaces of the bottom wall of the diffuser chamber 12 facing away from each other are inclined or recessed, so as to cooperate with at least two side plates 70 to define a pipe routing space 16. It can be understood that the diffuser chamber 12 is arranged in a gradually expanding manner, and at the same time, the cross-sectional area of the inlet of the diffuser chamber 12 is smaller than the cross-sectional area of the outlet of the diffuser chamber 12. In this way, the flow velocity of the air flow flowing into the diffuser chamber 12 from the inlet and flowing out from the outlet of the diffuser chamber 12 gradually decreases, the dynamic pressure becomes smaller, the stability of the air flow is increased, so as to reduce noise and vibration. At the same time, according to Bernoulli's law, when the dynamic pressure of the air flow becomes smaller, the static pressure of the air flow becomes larger. Therefore, the static pressure of the air flow when flowing out from the air outlet 15 is relatively large. The relatively large static pressure can help the air flow flowing out from the air outlet 15 more effectively overcome the air resistance, so that it can reach a farther distance relative to the air outlet 15, enabling the HVAC equipment to have a longer air supply distance. Based on this, when it is necessary to arrange the diffuser chamber 12 in a gradually expanding manner, it can be that the lower shell 50 of the diffuser chamber is inclined with the bottom wall of the diffuser chamber 12. Among them, the lower shell 50 of the diffuser chamber is inclined downward in the direction away from the fan 91, so that the diffuser chamber 12 is arranged in a gradually expanding manner; it can also be that the lower shell 50 of the diffuser chamber is recessed, that is, when projected along the length direction of the indoor unit 1, the profile line of the lower shell 50 of the diffuser chamber is arc-shaped, and in the direction away from the fan 91, it gradually extends away from the upper shell 22 of the diffuser chamber along the up and down direction of the indoor unit 1. In this way, it can also make the diffuser chamber 12 arranged in a gradually expanding manner. Of course, in other structural forms, it can also be that the top wall of the diffuser chamber 12 is inclined or recessed, so as to cooperate with at least two side plates 70 to define a pipe routing space 16, and this embodiment does not limit this.

[0086] In this way, this embodiment can utilize the space generated by the gradually expanding setting of the diffuser chamber 12 as the space for installing the pipeline assembly 80, so that there is no need to additionally provide a pipe routing space 16 on the air duct assembly, improving the space utilization rate, so that the overall volume of the housing 10 does not need to become larger, and further avoiding the overall volume of the indoor unit 1 from being too large, enabling the indoor unit 1 to be applicable to installation environments with relatively small installation spaces and having a wider applicability.

[0087] Further, please continue to refer to Figures 2 to 4 , the housing 10 further includes a heat exchange part 18 and a fan part 19, and the diffuser part 17 is connected to the heat exchange part 18 and the fan part 19 respectively on both sides along its length direction. It can be understood that the heat exchange part 18 includes the upper shell 23 of the heat exchange chamber, the water receiving tray 60, and the part of the side plate 70 located in the heat exchange part 18, and the fan part 19 includes the upper shell 21 of the fan chamber and the part of the side plate 70 located in the fan part 19.

[0088] The heat exchange part 18 is formed with a heat exchange cavity 13. The part of the side plate 70 located at the heat exchange part 18 defines the cavity side wall of the heat exchange cavity 13. The fan part 19 is formed with a fan cavity 11. The part of the side plate 70 located at the fan part 19 defines the cavity side wall of the fan cavity 11. The surfaces of the cavity bottom wall of the diffuser cavity 12 facing away from each other, the surfaces of the cavity bottom wall of the heat exchange cavity 13 facing away from each other, and the two side plates 70 cooperate to define a pipe routing space 16. The heat exchange cavity 13, the diffuser cavity 12, and the fan cavity 11 are arranged in sequence. In the arrangement direction of the heat exchange cavity 13, the diffuser cavity 12, and the fan cavity 11, the pipe routing space 16 is located between the heat exchange cavity 13 and the fan cavity 11. Thus, in the defined form of the pipe routing space 16, it will be located between the heat exchange cavity 13 and the fan cavity 11 of the indoor unit 1 and open downward. Therefore, when the staff disassembles and assembles the pipeline assembly 80, they can operate through the opening, which is relatively convenient.

[0089] Furthermore, in the arrangement direction of the heat exchange cavity 13, the diffuser cavity 12, and the fan cavity 11, the pipe routing space 16 is located in the middle of the indoor unit 1. It can be understood that in the defined form of the pipe routing space 16, on the basis that the pipe routing space 16 is located in the middle of the indoor unit 1, it can also open downward. Thus, when the staff disassembles and assembles the pipeline assembly 80, they can operate through the opening, which is relatively convenient.

[0090] During the actual flow of the air current, when the air current flows through the fan cavity 11, the diffuser cavity 12, and the heat exchange cavity 13 in sequence, with the diffuser cavity 12 being gradually expanded, the flow velocity of the air current can be gradually reduced, and the dynamic pressure becomes smaller. Thus, the smaller flow velocity enables the air current to have a more sufficient heat exchange with the heat exchanger 92 when passing through the heat exchange cavity 13. In this way, the heat exchange efficiency can be improved, so that the indoor unit 1 can achieve a better refrigeration or heating effect.

[0091] Please refer to Figures 4 to 5 , in some structural forms, the electronic control box 93 can be installed on the surface of the diffuser cavity lower shell 50 facing away from the cavity bottom wall of the diffuser cavity 12 and is accommodated in the pipe routing space 16. Thus, the housing 10 can also make further use of the space generated by the gradual expansion of the diffuser cavity 12 as the space for installing the electronic control box 93. Thus, the housing 10 does not need to be additionally provided with a space for installing the electronic control box 93, and the pipe routing space 16 can accommodate part of the pipeline assembly 80 and the electronic control box 93 at the same time. Therefore, the utilization rate of the pipe routing space 16 in this embodiment is higher, and the overall space utilization rate of the housing 10 can also be further improved, so that the overall volume of the housing 10 does not need to become larger, thereby avoiding the overall volume of the indoor unit 1 from being too large, and enabling the indoor unit 1 to be applicable to an installation environment with a small installation space, and the applicability is wider.

[0092] Furthermore, the electric 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.

[0093] Please refer 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 and the heat exchange chamber 13, and is used for the pipe assembly 80 to pass through. The pipe opening 51 can be configured in a long strip shape, so that the opening area of ​​the pipe opening 51 can be increased to allow a larger-sized pipe assembly 80 or more pipes in the pipe assembly 80 to pass through. In this way, the refrigerant pipe assembly 81 of the pipe assembly 80 can enter the pipe space 16 after passing through the pipe opening 51 from top to bottom, so that the pipe path is shorter and the pipe routing is convenient.

[0094] See also Figure 12 Further, the indoor unit 1 further includes a partition 99, which is located between the side plate 70 and the pressure diffuser 17 along the length direction of the indoor unit 1, and the pipe outlet 51 is opened on the partition 99. It can be understood that the upper surface of the partition 99 can be used to define a housing chamber 99a in cooperation with the side plate, and the housing chamber 99a can be used to accommodate part of the pipelines and valve body of the heat exchanger 92, and the lower surface of the partition 99 can be used to cooperate with the bottom wall of the pressure diffuser chamber 12, the bottom wall of the heat exchange chamber 13 and the two side plates 70 to define the pipe space 16, so that part of the pipelines and valve body of the heat exchanger 92 can be separated from the structure located in the pipe space 16 by the partition 99.

[0095] The heat exchange part 18 includes a water receiving tray 60 , which forms the bottom wall of the heat exchange cavity 13 and is provided with a connecting pipe part 61 connected to the water receiving tray 60 , and the connecting pipe part 61 is used to communicate with the pipeline assembly 80 .

[0096] Among them, the pipe outlet 51 and the connecting pipe part 61 are located together on any side of the pipe space 16 in the length direction of the indoor unit, and projected along the up-down direction of the indoor unit 1, the projection of the pipe outlet 51 on the casing 10 and the projection of the connecting pipe part 61 on the casing 10 at least partially overlap. In this way, the pipe outlet 51 and the connecting pipe part 61 can be staggered in the up-down direction of the indoor unit 1, so that space can be left for the staff to perform pipe routing operations on the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the pipeline assembly 80, making the operation more convenient for the staff. It should be noted that the projection of the pipe outlet 1 on the casing 10 and the projection of the connecting pipe part 61 on the casing 10 can be partially overlapped or completely overlapped, and the embodiment of the present application does not limit this.

[0097] Please refer toFigures 4 to 5 , in some embodiments, both the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the pipeline assembly 80 include a joint pipe 83, a joint (not shown in the figure) provided on the joint pipe 83, and a connecting pipe (not shown in the figure) connected to the joint.

[0098] Part of the pipe body of the refrigerant pipe assembly 81 is installed in the pipe routing space 16. One end of the joint pipe 83 of the refrigerant pipe assembly 81, which is far from the joint of the refrigerant pipe assembly 81, communicates with the heat exchanger 92, and the other end extends out of the pipe routing space 16 through any one of the pipe outlet parts 71 and communicates with 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.

[0099] Part of the pipe body of the drain pipe assembly 82 is installed in the pipe routing space 16. One end of the joint pipe 83 of the drain pipe assembly 82, which is far from the joint of the drain pipe assembly 82, communicates with the water receiving tray 60, and the other end extends out of the pipe routing space 16 through any one of the pipe outlet parts 71 and communicates with 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 timely drain the condensed water to the outside of the room.

[0100] During the actual pipe routing process, when the pipe outlet 51 and the connection port are on the side of the indoor unit 1 close to the outdoor unit, for example, when the outdoor unit is on the left side of the indoor unit 1 and the pipe outlet 51 and the connection port are on the left side in the length direction of the indoor unit 1, at this time, the joint pipe 83 can directly extend out through the pipe outlet part 71 of the side plate 70 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 pipe routing is simpler. In this way, while facilitating the pipe routing, the material used for the pipeline assembly 80 can be saved and the cost can be reduced.

[0101] Please refer to Figures 8 to 9 , in some other embodiments, both the refrigerant pipe assembly 81 and the drain pipe assembly 82 of the pipeline assembly 80 include a joint pipe 83, a joint (not shown in the figure) provided on the joint pipe 83, and a connecting pipe (not shown in the figure) connected to the joint.

[0102] Part of the pipe body of the refrigerant pipe assembly 81 is installed in the pipe routing space 16. One end of the joint pipe 83 of the refrigerant pipe assembly 81, which is far from the joint of the refrigerant pipe assembly 81, communicates with the heat exchanger 92. One end of the connecting pipe of the refrigerant pipe assembly 81, which is far from the joint of the refrigerant pipe assembly 81, extends out of the pipe routing space 16 through any one of the pipe outlet parts 71 for communicating with the external environment, that is, to communicate with the heat exchanger 92.

[0103] A partial pipe body of the drain pipe assembly 82 is installed in the pipe routing space 16. One end of the joint pipe 83 of the drain pipe assembly 82, which is far from the joint of the drain pipe assembly 82, communicates with the water receiving tray 60. One end of the connecting pipe of the drain pipe assembly 82, which is far from the joint of the drain pipe assembly 82, extends out of the pipe routing space 16 through any one of the pipe outlet parts 71 for communicating with the external environment, so as to discharge the condensed water outdoors in time.

[0104] During the actual pipe routing process, when the pipe outlet 51 and the connection pipe orifice are on the side of the indoor unit 1 far from the outdoor unit, for example, when the outdoor unit is on the right side of the indoor unit 1, and the pipe outlet 51 and the connection pipe orifice are on the left side in the length direction of the indoor unit 1, at this time, the connecting pipe can directly extend out through the pipe outlet part 71 of the side plate 70 on the right side in the length direction of the indoor unit 1. At this time, the total length of the pipe routing assembly 80 is shorter, and the pipe routing is simpler. In this way, while facilitating the pipe routing, the material consumption of the pipe routing assembly 80 can be saved, and the cost can be reduced.

[0105] Furthermore, in order to improve the versatility of this embodiment of the present application, in the length direction of the indoor unit 1, the pipe body of the joint pipe 83 of the refrigerant pipe assembly 81 installed in the pipe routing space 16 extends to the middle of the pipe routing space 16, and the pipe body of the joint pipe 83 of the drain pipe assembly 82 installed in the pipe routing space 16 extends to the middle of the pipe routing space 16. In this way, in the actual installation environment, whether the outdoor unit is on the left side or the right side of the indoor unit 1, at this time, the connecting pipe only needs to extend to the middle of the pipe routing space 16 and be connected to the joint pipe 83 through a joint, and the total length of the pipe routing assembly 80 will not be too long. In this way, while facilitating the pipe routing, the material consumption of the pipe routing assembly 80 can be saved, and the cost can be reduced. 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 transfer structure can be provided to realize the connection between the connecting pipe and the joint, or the connecting pipe can be configured as a flexible pipe to realize the connection between the connecting pipe and the joint by rotation. This embodiment does not limit this.

[0106] 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 83 and one end of the joint pipe 83 of the drain pipe assembly 82 far from the joint respectively communicate with the water pump structure 95. One end of the joint pipe 83 of the drain pipe assembly 82 far from the water pump structure 95 communicates with one end of the connecting pipe of the drain pipe assembly 82 through the joint of the drain pipe assembly 82.

[0107] In this way, under the operation of the water pump structure 95, the condensed water in the water receiving tray 60 can be pumped, improving the fluidity of the condensed water and avoiding the accumulation of condensed water in the indoor unit 1 to prevent situations such as the occurrence of peculiar smells and the growth of bacteria. At the same time, the water pump structure 95 can also be accommodated in the pipe routing space 16, so that the space utilization rate can be higher.

[0108] Furthermore, the water pump structure includes a water pump and a water pump connector installed in the pipe - walking space 16. The water pump is housed inside the water pump connector. The water pump connector has a first interface and a second interface. The first interface is connected to the connection pipe orifice through a pipe, and the second interface is connected to one end of the drain pipe assembly 82 away from the connector. It can be understood that under the operation of the water pump, the condensed water in the water receiving tray 60 can be pumped, and the condensed water is transmitted in sequence from the connection pipe orifice, the first interface, the inside of the water pump connector, the inside of the water pump, the second interface, and the joint pipe 83, and finally flows through the joint and the connection pipe to be discharged to the outside, avoiding the accumulation of condensed water in the indoor unit 1 to prevent the occurrence of peculiar smells and the breeding of bacteria. Moreover, while fixedly installing the water pump through the water pump connector, the inside of the water pump connector can be used for the circulation of condensed water.

[0109] Please refer to Figures 4 to 5 , in some embodiments, the joint pipes 83 of the refrigerant pipe assembly 81 and the drain pipe assembly 82 can both include a first pipe segment 831 and a second pipe segment 832.

[0110] In the refrigerant pipe assembly 81, one end of the first pipe segment 831 is connected to the heat exchanger 92, at least part of the second pipe segment 832 is installed in the pipe - walking space 16, one end of the second pipe segment 832 is connected to the other end of the first pipe segment 831, and the other end is connected to one end of the connection pipe of the refrigerant pipe assembly 81 through the joint of the refrigerant pipe assembly 81. In the drain pipe assembly 82, one end of the first pipe segment 831 is connected to the water receiving tray 60, at least part of the second pipe segment 832 is installed in the pipe - walking space 16, one end of the second pipe segment 832 is connected to the other end of the first pipe segment 831, and the other end is connected to one end of the connection pipe of the drain pipe assembly 82 through the joint of the drain pipe assembly 82.

[0111] In some structural forms, whether it is the first pipe segment 831 and the second pipe segment 832 of the refrigerant pipe assembly 81 or the drain pipe assembly 82, the other end of the first pipe segment 831 is connected to one end of the second pipe segment 832 through a swivel joint (not shown in the figure), so that there is an angle between the first pipe segment 831 and the second pipe segment 832. In this way, according to the actual installation position of the outdoor unit, the orientation of the second pipe segment 832 can be changed through the swivel joint, so that the pipe - walking direction of the second pipe segment 832 can be selectively changed, and the versatility is higher.

[0112] In other structural forms, whether it is the first pipe section 831 and 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 there is an angle 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 position of the outdoor unit, so that the second pipe section 832 can be selectively changed in its pipe running direction, which is more versatile.

[0113] Please refer to Figures 8 to 9 In some embodiments, the refrigerant pipe assembly 81 also includes an insulation sleeve 813, which can be made of glass wool, rubber sponge, polyurethane, etc., so that the insulation sleeve 813 has excellent thermal insulation performance, corrosion resistance, 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.

[0114] The heat preservation sleeve 813 is wrapped around at least part of the outer side of the joint pipe 83 and the outer side of the joint, and the heat preservation sleeve 813 is also wrapped around the outer side of the connecting pipe. In this way, by arranging the heat preservation sleeve 813 around at least part of the outer side of the joint pipe 83 and the outer side of the connecting pipe, at least part of the joint pipe 83 and the connecting pipe can be insulated, so as to avoid too large a temperature difference between the air inside the joint pipe 83 and the air outside the joint pipe 83, and to avoid too large a temperature difference between the air inside the connecting pipe and the air outside the connecting pipe, so as to reduce the possibility of condensation on the inner pipe wall of the joint pipe 83 and the inner pipe wall of the connecting pipe.

[0115] Furthermore, when projected along the length direction of the indoor unit 1, the projection of the insulation sleeve 813 on the side plate 70 is located inside the outlet pipe portion 71. In this way, 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 is passed 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 an outlet pipe notch 71a, the outlet pipe notch 71a can allow the insulation sleeve 813 to pass through, and the mouth wall of the outlet pipe notch 71a is prevented from squeezing the outer wall of the insulation sleeve 813, thereby causing the inner wall of the insulation sleeve 813 to over-squeeze the joint pipe 83, the joint or the connecting pipe, causing the joint pipe 83, the joint or the connecting pipe to be damaged.

[0116] Please continue reading Figures 8 to 9 In some embodiments, the pipe notch 71a is formed below the side plate 70 along the up-down direction of the indoor unit 1. It is understandable that when the worker is inserting the connecting pipe or the joint pipe 83 of the pipeline assembly 80 through the pipe notch 71a, the height that the worker needs to reach can be appropriately reduced, which is convenient for the worker to operate and improves the safety of the worker at work.

[0117] On the basis that the pipe outlet notch 71a is formed below the side plate 70, in the length direction of the indoor unit 1, the pipe outlet notch 71a of this embodiment can be arranged opposite to the pipe routing space 16. At this time, the pipe routing 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 plates 70. In this way, when the connecting pipe or the joint pipe 83 of the pipe assembly 80 passes through the pipe outlet notch 71a in the pipe routing space 16, the pipe routing path is shorter, so as to reduce the length of the connecting pipe or the joint pipe 83, reduce the usage amount, and reduce the cost.

[0118] In order to avoid damage to the pipe assembly 80 when passing through the pipe outlet notch 71a, further, the wall of the pipe outlet notch 71a of this embodiment can be smoothly transitioned. In this way, there is no sharp part on the wall of the pipe outlet notch 71a, so that when the joint pipe 83 or the connecting pipe in the pipe assembly 80 touches the wall of the pipe outlet notch 71a, it will not be scratched due to touching the sharp part, resulting in the leakage of refrigerant or condensate water, so as to greatly extend the service life of the pipe assembly 80.

[0119] Further, please continue to refer to Figures 8 to 9 , the housing 10 further includes a support member 33, the support member 33 is arranged below the pipe outlet notch 71a and is connected to the side plate 70. Among them, 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, at this time the support member 33 is used to support the joint pipe 83, and if the connecting pipe of the pipe assembly 80 extends through the pipe outlet notch 71a, at this time 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, avoiding the dropping of the joint pipe 83 or the connecting pipe from the pipe outlet notch 71a, causing loss of the joint pipe 83 or the connecting pipe, and thus being able to extend the service life of the pipe assembly 80.

[0120] In some structural forms, please refer to Figures 9 to 11 , the side plate 70 includes a plate main body 72 and a first flanging 73 connected to the lower edge of the plate main body 72. The plate main body 72 defines the side wall of the diffuser chamber 12, the side wall of the heat exchange chamber 13, and the side wall of the fan chamber 11, and the pipe outlet notch 71a is formed below the plate main body 72. The support member 33 includes a connected support portion 331 and a first connection portion 332, and the support portion 331 and the first connection portion 332 are arranged at an angle.

[0121] Among them, the supporting part 331 is configured to support the connecting pipe or the joint pipe 83 of the pipeline assembly 80, and is fixedly connected to the plate body 72. The first connecting part 332 is fixedly connected to the first flanging 73. In this way, the connection with the side plate 70 can be realized through the supporting part 331 and the first connecting part 332, the connection area between the side plate 70 and the support 33 is increased, the connection firmness between the two is improved, and the supporting part 331 and the first connecting part 332 are mutually angled, so that there are connection positions between the side plate 70 and the support 33 in two mutually angled directions, which can also improve the connection firmness between the side plate 70 and the support 33.

[0122] Furthermore, the casing 10 further includes a sheet metal part 31 disposed outside the water receiving tray 60 by means of bolt connection or the like. The sheet metal part 31 includes a main body part 311 and a second flanging 312. The lower heat insulation layer 943 is clamped between the main body part 311 of the sheet metal part 31 and the water receiving tray 60. The support 33 further includes a second connecting part 333. The second connecting part 333 is connected to the first connecting part 332 and is angled with the first connecting part 332. Among them, the second connecting part 333 is connected to the second flanging 312 of the sheet metal part 31. In this way, on the basis of the connection between the support 33 and the side plate 70, the connection firmness with the whole casing 10 can be improved through the connection with the second flanging 312 of the sheet metal part 31.

[0123] Please refer to Figure 1 , in some embodiments, the indoor unit 1 further includes a plastic plate 96. The plastic plate 96 abuts against the side plate, and when projected along the length direction of the indoor unit, a part of the plastic plate 96 is located in the pipe outlet notch 71a, so that the pipeline assembly is spaced from the wall of the pipe outlet notch 71a. It can be understood that the plastic plate 96 can be the side wall constituting the partition 99, or the plastic plate 96 can be a separate component, and the present application does not limit this. Through the arrangement of the plastic plate 96, the possibility of the pipeline assembly contacting the wall of the pipe outlet notch 71a is reduced, so that the wall of the pipe outlet notch 71a can be more effectively prevented from scratching the pipeline assembly 80, and when the plastic plate 96 contacts the pipeline assembly 80, due to its plastic material, it can avoid scratching the pipeline assembly 80 by itself.

[0124] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0125] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An indoor unit, characterized in that, Comprising: A housing, the housing includes two spaced and oppositely arranged side plates, a pipe - passing space is configured between the two side plates, and each side plate has a pipe - outlet portion communicating with the pipe - passing space; And A pipeline assembly, the pipeline assembly can be partially installed in the pipe - passing space and extends out of the pipe - passing space through any one of the two pipe - outlet portions.

2. The indoor unit according to claim 1, characterized in that, 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 - passing space.

3. The indoor unit according to claim 2, characterized in that The housing further includes a heat - exchange portion and a fan portion, and two sides of the diffuser portion in its width direction are respectively connected to the heat - exchange portion and the fan portion; The heat - exchange portion forms a heat - exchange cavity, the fan portion forms a fan 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 - passing space; Wherein, the heat - exchange cavity, the diffuser cavity and the fan cavity are arranged in sequence, and in the arrangement direction of the heat - exchange cavity, the diffuser cavity and the fan cavity, the pipe - passing space is located between the heat - exchange cavity and the fan cavity.

4. The indoor unit according to claim 3, characterized in that, In the arrangement direction of the heat - exchange cavity, the diffuser cavity and the fan cavity, the pipe - passing space is located in the middle of the indoor unit.

5. The indoor unit according to claim 3, characterized in that, A pipe - passing opening is arranged above the pipe - passing space, the pipe - passing opening communicates the pipe - passing space and the heat - exchange cavity and is used for the pipeline assembly to pass through.

6. The indoor unit according to claim 5, characterized in that, The indoor unit further includes: A partition board, the partition board is located between the side plate and the diffuser portion along the length direction of the indoor unit, and the pipe - passing opening is formed on the partition board.

7. The indoor unit according to claim 5, characterized in that, 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 pipeline assembly; Wherein, the pipe - passing opening and the connecting pipe portion are jointly located on any one side of the pipe - passing space in the length direction of the indoor unit, and when projected along the up - down direction of the indoor unit, the projection of the pipe - passing opening on the housing at least partially overlaps with the projection of the connecting pipe portion on the housing.

8. The indoor unit according to any one of claims 1 to 7, characterized in that Along the up - down direction of the indoor unit, the pipe - outlet portion is a pipe - outlet notch formed below the side plate.

9. The indoor unit according to claim 8, characterized in that, The wall of the pipe - outlet notch has a smooth transition.

10. The indoor unit according to claim 8, characterized in that, 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 pipeline assembly.

11. The indoor unit according to claim 8, characterized in that, The indoor unit further includes: A plastic plate, the plastic plate abuts against the side plate, and when projected along the length direction of the indoor unit, a part of the plastic plate is located in the pipe - outlet notch so that the pipeline assembly is spaced from the wall of the pipe - outlet notch.

12. The indoor unit according to claim 1, characterized in that, 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 communicates with the water - receiving tray and / or the heat exchanger.

13. The indoor unit according to claim 12, characterized in that, The pipeline assembly includes a joint pipe, a joint arranged on the joint pipe and a connecting pipe connected to the joint; A part of the joint pipe is installed in the pipe routing space, and one end of the joint pipe away from the joint communicates 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 communicates 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.

14. The indoor unit according to claim 12, characterized in that, The pipeline assembly includes a joint pipe, a joint provided on the joint pipe, and a connecting pipe connected to the joint; A part of the pipe body of the joint pipe and a part of the pipe body of the connecting pipe are both installed in the pipe routing space. One end of the joint pipe away from the joint communicates 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.

15. The indoor unit according to claim 14, characterized in that, 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.

16. The indoor unit according to any one of claims 13 to 15, characterized in that The joint pipe includes: A first pipe section with one end communicating with the water receiving tray or the heat exchanger; and A second pipe section with at least a part installed in the pipe routing space. One end of the second pipe section communicates with the other end of the first pipe section, and the other end communicates with one end of the connecting pipe through the joint; Wherein, the other end of the first pipe section communicates with one end of the second pipe section through a swivel joint so that there is an angle between the first pipe section and the second pipe section; or, the second pipe section is formed as a rotatable flexible pipe so that there is an angle between the first pipe section and the second pipe section.

17. The indoor unit according to any one of claims 13 to 15, characterized in that, The pipeline assembly includes a refrigerant pipe assembly and a drain pipe assembly. 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 communicates with the heat exchanger, and the other end communicates 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 communicates with the water receiving tray, and the other end communicates 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, and the water receiving tray and one end of the joint pipe of the drain pipe assembly away from the joint communicate with the water pump structure respectively, and one end of the joint pipe of the drain pipe assembly away from the water pump structure communicates with one end of the connecting pipe of the drain pipe assembly through the joint of the drain pipe assembly.

18. The indoor unit according to claim 17, characterized in that, The refrigerant pipe assembly further includes a heat preservation sleeve, and the heat preservation sleeve wraps around at least a part of the outer side of the joint pipe and the outer side of the joint, and the heat preservation sleeve also wraps 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.

19. A heating, ventilation and air conditioning equipment, characterized in that It includes an outdoor unit and the indoor unit according to any one of claims 1 to 18, and the outdoor unit is connected to the indoor unit through the pipeline assembly.

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