Indoor unit and air conditioner

Abstract

The utility model provides an indoor unit and an air conditioner, which comprise a shell, a heat exchanger and a liquid separator, the heat exchanger is arranged in the shell, a plurality of refrigerant flow channels are arranged in the heat exchanger, and the refrigerant flow channels are connected through heat exchange elbows. And the liquid outlet end of the liquid separator is connected with the refrigerant flow channel. The liquid separator comprises a liquid separation pipe, and at least part of the liquid separation pipe is a flexible hose. According to the indoor unit and the air conditioner, the problem that connection between the unit connecting pipe and the indoor unit heat exchanger is difficult can be solved, and the effect that connection between the unit connecting pipe and the indoor unit heat exchanger is convenient is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to an indoor unit and an air conditioner. Background Art

[0002] An air conditioner consists of an indoor unit and an outdoor unit. The indoor temperature is regulated by the refrigerant exchanging heat between the indoor and outdoor heat exchangers. The connecting pipe is the pipe that connects the indoor and outdoor heat exchangers for the refrigerant to flow.

[0003] When installing an air conditioner, due to the small space inside the indoor unit, it is inconvenient for the installer to operate inside the indoor unit. It is difficult to align the connecting pipe with the installation interface, and it is difficult to connect the connecting pipe with the indoor unit heat exchanger, making the air conditioner installation inconvenient. Utility Model Content

[0004] In view of the above problems, the present utility model is proposed to provide an indoor unit and air conditioner that overcome the above problems or at least partially solve the above problems, which can solve the problem that it is difficult to connect the connecting pipe to the indoor unit heat exchanger, and achieve the effect of facilitating the connection of the connecting pipe to the indoor unit heat exchanger.

[0005] Specifically, the present invention provides an indoor unit, comprising:

[0006] case;

[0007] A heat exchanger, the heat exchanger being disposed in the housing, the heat exchanger being provided with a plurality of refrigerant flow channels, the refrigerant flow channels being connected by heat exchange elbows;

[0008] A liquid separator, wherein the liquid outlet end of the liquid separator is connected to the refrigerant flow channel; the liquid separator comprises a liquid separator tube, and at least a part of the liquid separator tube is a flexible hose.

[0009] Optionally, the indoor unit further includes:

[0010] A heat exchange air duct is provided below the heat exchanger and extends toward the front and lower portion of the housing;

[0011] A connecting pipe extends along the extension direction of the heat exchanger, and the connecting pipe is located below the rear side of the heat exchange duct.

[0012] Optionally, the shell includes a front panel, and the liquid dispensing tube has a first interface, the first interface is arranged close to the front panel, and the first interface faces upward.

[0013] Optionally, the indoor unit further includes an air collecting device, which includes an air collecting pipe and an air collecting head, and the air inlet end of the air collecting device is connected to the refrigerant flow channel.

[0014] Optionally, the gas collecting pipe is at least partially a flexible hose.

[0015] Optionally, the shell includes a front panel, and the gas collecting pipe has a second interface, the second interface is arranged close to the front panel, and the second interface faces upward.

[0016] Optionally, the indoor unit further includes a liquid pipe and a gas pipe, the liquid distribution pipe and the machine connecting pipe are connected by the liquid pipe, and the gas collecting pipe and the machine connecting pipe are connected by the gas pipe, and the outer surfaces of the liquid pipe and the gas pipe are wrapped with an insulation layer; the machine connecting pipe is covered on the outside of the gas pipe and the liquid pipe.

[0017] Optionally, the air pipe includes a first air pipe segment and a second air pipe segment, the first air pipe segment is in an inverted U shape, and the second air pipe segment extends horizontally along the extension direction of the heat exchanger;

[0018] The liquid pipe includes a first liquid pipe section and a second liquid pipe section, the first liquid pipe section is in an inverted U shape, and the second liquid pipe section extends horizontally along the extension direction of the heat exchanger;

[0019] The connecting pipe is covered on the outer sides of the second air pipe section and the second liquid pipe section.

[0020] Optionally, a through hole allowing the connecting pipe to pass through is provided on the side wall of the shell.

[0021] The utility model also provides an air conditioner, comprising any one of the indoor units described above.

[0022] In the indoor unit and air conditioner of the present invention, refrigerant enters the dispensing pipe from the outdoor unit via a connecting pipe and is evenly distributed within the heat exchanger via a dispensing head. The refrigerant flows through multiple refrigerant channels, exchanging heat with the air. Because the dispensing pipe is at least partially a flexible hose, installers can bend it to adjust the position and angle of its interface with other piping during installation, facilitating alignment with the interface. This makes connecting the indoor unit's internal piping more convenient, further facilitating installation of the air conditioner.

[0023] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0025] Figure 1 is a schematic structural diagram of an indoor unit according to an embodiment of the present utility model;

[0026] Figure 2 This is a schematic structural diagram of the connecting pipe of the indoor unit according to one embodiment of the present utility model;

[0027] Figure 3 It is a schematic side view of an indoor unit according to one embodiment of the present invention. DETAILED DESCRIPTION

[0028] Refer to the following Figures 1 to 3 To describe the indoor unit and air conditioner of the embodiment of the present utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0029] Unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," "fixed," and "coupled" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two elements or interaction between two elements, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. That is, in the description of this embodiment, the first feature being "above," "above," and "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below," "below," or "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of the present embodiment, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0032] Figure 1 This is a schematic structural diagram of an indoor unit according to an embodiment of the present invention. Figure 1 As shown, and reference Figure 2 and Figure 3 The present invention provides an indoor unit 100, comprising a housing 10, a heat exchanger 20, and a liquid separator. The heat exchanger 20 is disposed within the housing 10. A plurality of refrigerant flow channels are disposed within the heat exchanger 20, and the refrigerant flow channels are connected by heat exchange elbows 210. The liquid outlet of the liquid separator is connected to the refrigerant flow channels. The liquid separator includes a liquid separator tube 310, at least part of which is a flexible hose. The liquid separator also includes a liquid separator head 320, which is connected to the liquid outlet of the liquid separator tube 310.

[0033] In this embodiment, refrigerant enters the dispensing pipe 310 from the outdoor unit via the connecting pipe 60 and is evenly distributed within the heat exchanger 20 via the dispensing head 320. The refrigerant flows through multiple refrigerant channels, exchanging heat with the air. Because the dispensing pipe 310 is at least partially a flexible hose, the installer can bend the dispensing pipe 310 to adjust the position and angle of its interface when installing it and other pipes. This facilitates alignment between the dispensing pipe 310 and the interfaces of the other pipes, making it easier to connect the internal pipes of the indoor unit 100 and, in turn, facilitating installation of the air conditioner.

[0034] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the indoor unit 100 further includes a heat exchange duct 50 and a connecting pipe 60. The heat exchange duct 50 is disposed below the heat exchanger 20 and extends toward the front and lower portion of the housing 10. The connecting pipe 60 extends in the direction of the heat exchanger 20 and is located below and behind the heat exchange duct 50.

[0035] In this embodiment, the heat exchange duct 50 extends forward and downward from the rear side of the indoor unit 100. The duct wall 510 at the rear side of the heat exchange duct also extends forward and downward, creating a free space below the rear duct wall 510. The connecting duct 60 is placed in this free space, effectively utilizing the space within the indoor unit 100. This can reduce the size of the indoor unit 100, increase the available space for other components, and reduce the production cost of the air conditioner.

[0036] Furthermore, the connecting pipe 60 is arranged inside the indoor unit 100. When the indoor unit 100 is placed indoors, the connecting pipe 60 is avoided from being hung indoors, thereby improving the aesthetics of the indoor unit 100 and further improving the user experience.

[0037] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the front of the housing 10 is provided with an air inlet and an air outlet 110. The air inlet is located above the air outlet 110, and a cross-flow fan is located below the heat exchanger 20. Air enters the indoor unit 100 through the air inlet and exchanges heat through the heat exchanger 20. The heated air is then blown through the heat exchange duct 50 toward the air outlet 110 by the cross-flow fan, and then blown out of the indoor unit 100 through the air outlet 110.

[0038] In some embodiments of the present invention, Figure 1 As shown, the housing 10 includes a front panel, and the liquid dispensing tube 310 has a first interface 330 . The first interface 330 is arranged close to the front panel and faces upward.

[0039] In this embodiment, the liquid distribution tube 310 is a U-shaped tube, and the first interface 330 is located near the front panel. After the front panel is removed, the first interface 330 is closer to the front opening, making it easier to connect and disconnect the liquid distribution tube 310 from other pipes. Furthermore, if access is difficult inside the indoor unit 100, the first interface 330 can be pulled out of the indoor unit 100. Because the first interface 330 is closer to the front opening, the first interface 330 can be pulled out more easily, making it easier to pull out the first interface 330 and, consequently, easier to connect and disconnect the liquid distribution tube 310 from other pipes.

[0040] In some embodiments of the present invention, the length of the flexible hose is greater than the distance from the connection point between the flexible hose and the liquid dispensing pipe 310 to the housing 10 , so that the first interface 330 can extend out of the indoor unit 100 .

[0041] In this embodiment, when installing the liquid distribution tube 310 and other pipes, the installer can pull the first interface 330 of the liquid distribution tube 310 to the outside of the indoor unit 100, connect the liquid distribution tube 310 and other pipes outside the indoor unit 100, and then place the liquid distribution tube 310 and other pipes into the indoor unit 100. The installer can adjust the position of the liquid distribution tube 310 and other pipes by bending the liquid distribution tube 310, making the connection of the pipes in the indoor unit 100 more convenient, thereby facilitating the installation of the air conditioner.

[0042] Furthermore, the length of the flexible hose is as long as possible to improve the convenience of connecting the flexible hose with other pipelines.

[0043] In some embodiments of the present invention, Figure 1 As shown, the indoor unit 100 further includes an air collecting device, which includes an air collecting pipe 410 and an air collecting head 420. The air inlet end of the air collecting device is connected to the refrigerant flow channel.

[0044] In this embodiment, after heat exchange in heat exchanger 20, the refrigerant flows from the refrigerant flow path to gas header 420, is collected through gas collection pipe 410, and enters the outdoor unit. The refrigerant in the refrigerant flow path enters gas collection pipe 420 through multiple pipes. The provision of the gas collection device optimizes the structure of the refrigerant flow path, facilitates the flow of refrigerant, and helps heat exchange in heat exchanger 20, thereby improving the operating efficiency of heat exchanger 20.

[0045] In some embodiments of the present invention, the air collecting pipe 410 is at least partially a flexible hose.

[0046] In this embodiment, after heat exchange in the heat exchanger 20, the refrigerant enters the gas header 420. After being collected by the gas header 420, the refrigerant enters the outdoor unit through the gas collection pipe 410. Because the gas collection pipe 410 is at least partially a flexible hose, the installer can bend the gas collection pipe 410 to adjust the position and angle of the interface of the gas collection pipe 410 when installing the gas collection pipe 410 and other pipes. This facilitates the alignment of the gas collection pipe 410 with the interface of the other pipes, making it easier to connect the pipes in the indoor unit 100 and thus facilitating the installation of the air conditioner.

[0047] In some embodiments of the present invention, Figure 1 As shown, the housing 10 includes a front panel, and the air collecting pipe 410 has a second interface 430 . The second interface 430 is arranged close to the front panel and faces upward.

[0048] In this embodiment, the gas collection pipe 410 is a U-shaped pipe, and the second port 430 is located near the front panel. After the front panel is removed, the second port 430 is closer to the front opening, facilitating connection and removal of the gas collection pipe 410 from the machine connection pipe 60. Furthermore, if access is difficult inside the indoor unit 100, the second port 430 can be used to pull the indoor unit 100 out. Because the second port 430 is closer to the front opening, the second port 430 can be pulled out more easily, making it easier to pull out and, consequently, connect and remove the gas collection pipe 410 from the machine connection pipe 60.

[0049] In some embodiments of the present invention, a protection kit is provided at the first interface 330 and the second interface 430 .

[0050] In this embodiment, after the liquid distribution pipe 310 is connected to the liquid pipe 80 and the gas collecting pipe 410 is connected to the gas pipe 70, the first interface 330 and the second interface 430 are locked using a protective kit to prevent the refrigerant from leaking from the first interface 330 or the second interface 430, thereby ensuring the stability of the connection between the liquid distribution pipe 310 and the gas collecting pipe 410.

[0051] In some embodiments of the present invention, the length of the flexible hose is greater than the distance from the connection point between the flexible hose and the air collecting pipe 410 to the housing 10 , so that the second interface 430 can extend out of the indoor unit 100 .

[0052] In this embodiment, when installing the gas collecting pipe 410 and other pipes, the installer can pull the second interface 430 of the gas collecting pipe 410 to the outside of the indoor unit 100, connect the gas collecting pipe 410 and other pipes outside the indoor unit 100, and then place the gas collecting pipe 410 and other pipes into the indoor unit 100. The installer can adjust the position of the gas collecting pipe 410 and other pipes by bending the gas collecting pipe 410, making it easier to connect the pipes in the indoor unit 100 and thus facilitating the installation of the air conditioner.

[0053] In some embodiments of the present invention, Figure 1 As shown, the indoor unit 100 further includes a liquid pipe 80 and a gas pipe 70. The liquid pipe 80 connects the liquid distribution pipe 310 to the machine connection pipe 60, and the gas pipe 70 connects the gas collection pipe 410 to the machine connection pipe 60. The outer surfaces of the liquid pipe 80 and the gas pipe 70 are covered with a thermal insulation layer. The machine connection pipe 60 is wrapped around the outer sides of the gas pipe 70 and the liquid pipe 80.

[0054] In this embodiment, when installing the air conditioner, the liquid pipe 80 is connected to the liquid distribution pipe 310, and the gas pipe 70 is connected to the gas collection pipe 410. Then, an insulation layer is wrapped around the outside of the gas pipe 70 and the liquid pipe 80, and the ends of the insulation layer are tied with cable ties to prevent the insulation layer from moving. Finally, the gas pipe 70 and the liquid pipe 80 are wrapped together with the connecting pipe 60. Using the connecting pipe 60 to wrap the gas pipe 70 and the liquid pipe 80 together aligns the directions of the gas pipe 70 and the liquid pipe 80, reducing the space occupied by the gas pipe 70 and the liquid pipe 80. Furthermore, the connecting pipe 60, located outside the gas pipe 70 and the liquid pipe 80, protects the gas pipe 70 and the liquid pipe 80 from damage.

[0055] In some embodiments of the present invention, Figure 2 As shown, the air pipe 70 includes a first air pipe section 720, the first air pipe section being in an inverted U-shape, and a second air pipe section 720 extending horizontally along the direction of the heat exchanger 20. The liquid pipe 80 includes a first liquid pipe section 810 and a second liquid pipe section 820, the first liquid pipe section 810 being in an inverted U-shape, and the second liquid pipe section 820 extending horizontally along the direction of the heat exchanger 20. The connecting pipe 60 is wrapped around the outside of the second air pipe section 720 and the second liquid pipe section 820.

[0056] In this embodiment, the air pipe 70 is composed of a first air pipe section and a second air pipe section 720. The first air pipe section is in an inverted U-shape and is connected to the second interface 430 of the air collecting pipe 410. The liquid pipe 80 is composed of a first liquid pipe section 810 and a second liquid pipe section 820. The first liquid pipe section 810 is in an inverted U-shape and is connected to the first interface 330 of the liquid distribution pipe 310. The first liquid pipe section 810 and the first air pipe section are both arranged on the side of the heat exchanger 20. The second air pipe section 720 and the second liquid pipe section 820 are arranged horizontally on the rear side of the heat exchange duct 50. The placement of the air pipe 70 and the liquid pipe 80 rationally utilizes the space above the liquid distributor and behind the heat exchange duct 50, which can reduce the volume of the indoor unit 100 or increase the space available for other components, thereby reducing the production cost of the air conditioner.

[0057] In some embodiments of the present invention, a through hole is provided on the side wall of the housing 10 to allow the connecting pipe 60 to pass through.

[0058] In this embodiment, a through hole is formed in the side wall of the housing 10 for the passage of a connection pipe 60. The connection pipe 60 extends through the through hole to connect to the outdoor unit. The connection pipe 60 is located inside the indoor unit 100, enhancing the aesthetics of the indoor unit 100 and, in turn, improving the user experience.

[0059] In some embodiments of the present invention, Figure 1 As shown, the indoor unit 100 further includes an electrical box 90 , which is disposed above the heat exchanger 20 .

[0060] In this embodiment, the indoor unit 100 houses a circuit control board and various power distribution components. To protect these components, they are placed within an electrical enclosure 90. This prevents moisture from damaging them. In built-in air conditioners, the indoor unit 100 is relatively tall. Placing the electrical enclosure 90 above the evaporator effectively utilizes the interior space of the indoor unit 100 and reduces production costs.

[0061] In some preferred embodiments of the present invention, the indoor unit 100 includes a housing 10, an evaporator, a liquid separator and an air collecting device, a connecting pipe 60, and a heat exchange duct 50. An air inlet and an air outlet 110 are provided on the front side of the housing. Multiple refrigerant flow channels are formed within the evaporator, through which refrigerant flows. The liquid separator includes a liquid separator pipe 310 and a liquid separator head 320. The liquid separator pipe 310 is a flexible hose that connects to the refrigerant flow channels to distribute the refrigerant therein. The air collecting device includes an air collecting pipe 410 and an air collecting head 420 to allow refrigerant within the evaporator to enter the air collecting device. The liquid separator has a first interface 330 connected to the liquid pipe 80, and the air collecting device has a second interface 430 connected to the air pipe 70. The first interface 330 and the second interface 430 are located on the front panel of the housing 10. The heat exchange duct 50 is disposed below the evaporator and extends forward and downward. The connecting pipe 60 is horizontally arranged in the space below the heat exchange air duct 50 .

[0062] In this embodiment, when installing the indoor unit 100, thread the air pipe 70 into the second port 430. When connecting the liquid pipe 80, bend the liquid distributor 310, align the liquid pipe 80 with the first port 330, and tighten the nuts. After connecting the air pipe 70 and liquid pipe 80, use a leak detector or soapy water to check for leaks at the first port 330 and the second port 430. After confirming that there are no leaks, tighten the first and second ports using the protective kit. When the indoor unit 100 is operating, refrigerant flows out of the indoor unit 100, passes through the liquid distributor, and evenly enters the evaporator. Outside air enters the indoor unit 100 through the air inlet, exchanges heat with the refrigerant in the evaporator, and is then blown out of the heat exchange duct 50 and into the room through the air outlet 110. After heat exchange, the refrigerant in the evaporator becomes gaseous. After being collected by the gas collector, it flows through the air pipe 70 into the outdoor unit.

[0063] The liquid distribution pipe 310 is a flexible hose. When installing the liquid distribution pipe 310 and the liquid pipe 80, the installer can bend the liquid distribution pipe 310 to adjust the position and angle of the first interface 330 to facilitate the alignment of the first interface 330 with the interface of the liquid pipe 80, making the connection of the internal pipeline of the indoor unit 100 more convenient, thereby facilitating the installation of the air conditioner.

[0064] Furthermore, the connection pipe 60 is placed in the free space, effectively utilizing the space within the indoor unit 100. This can reduce the size of the indoor unit 100, increase the space available for other components, and reduce the production cost of the air conditioner. Furthermore, since the connection pipe 60 is located inside the indoor unit 100, it avoids the connection pipe 60 being suspended indoors when the indoor unit 100 is placed indoors, improving the aesthetics of the indoor unit 100 and, in turn, enhancing the user experience.

[0065] An embodiment of the present invention further provides an air conditioner, comprising the indoor unit 100 in any one of the above embodiments.

[0066] In some embodiments of the present invention, the air conditioner is an embedded air conditioner, comprising an embedded cabinet and an indoor unit 100. The indoor unit 100 is installed in the embedded cabinet, and a hole is provided on the embedded cabinet to allow the connecting pipe 60 to pass through.

[0067] In this embodiment, the indoor unit 100 is installed in a built-in cabinet. When installing the indoor unit 100, place the indoor unit 100 in the reserved installation position and pass the connecting pipe 60 through the hole. After determining the distance between the housing 10 of the indoor unit 100 and the edge of the built-in cabinet, secure the indoor unit 100.

[0068] In other embodiments of the present invention, the air conditioner is a wall-mounted air conditioner or a vertical air conditioner.

[0069] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention can be directly determined or deduced from the contents disclosed herein without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. An indoor unit, characterized in that: include: case; A heat exchanger, the heat exchanger being disposed in the housing, the heat exchanger being provided with a plurality of refrigerant flow channels, the refrigerant flow channels being connected by heat exchange elbows; A liquid separator, wherein the liquid outlet end of the liquid separator is connected to the refrigerant flow channel; the liquid separator comprises a liquid separator tube, and at least a part of the liquid separator tube is a flexible hose.

2. The indoor unit according to claim 1, characterized in that: Also includes: A heat exchange air duct is provided below the heat exchanger and extends toward the front and lower portion of the housing; A connecting pipe extends along the extension direction of the heat exchanger and is located below the rear side of the heat exchange duct.

3. The indoor unit according to claim 2, characterized in that: The housing includes a front panel. The liquid dispensing tube is provided with a first interface. The first interface is arranged close to the front panel and faces upward.

4. The indoor unit according to claim 2, characterized in that: It also includes an air collecting device, which includes an air collecting pipe and an air collecting head, and the air inlet end of the air collecting device is connected to the refrigerant flow channel.

5. The indoor unit according to claim 4, characterized in that: The air collecting pipe is at least partially a flexible hose.

6. The indoor unit according to claim 4, characterized in that: The shell includes a front panel. The gas collecting pipe is provided with a second interface. The second interface is arranged close to the front panel and faces upward.

7. The indoor unit according to claim 4, characterized in that: It also includes a liquid pipe and an air pipe, through which the liquid distribution pipe and the machine connecting pipe are connected, and through which the air collecting pipe and the machine connecting pipe are connected. The outer surfaces of the liquid pipe and the air pipe are wrapped with an insulation layer; the machine connecting pipe is covered on the outside of the air pipe and the liquid pipe.

8. The indoor unit according to claim 7, characterized in that: The air pipe includes a first air pipe section and a second air pipe section, the first air pipe section is in an inverted U shape, and the second air pipe section extends horizontally along the extension direction of the heat exchanger; The liquid pipe includes a first liquid pipe section and a second liquid pipe section, the first liquid pipe section is in an inverted U shape, and the second liquid pipe section extends horizontally along the extension direction of the heat exchanger; The connecting pipe is covered on the outer sides of the second air pipe section and the second liquid pipe section.

9. The indoor unit according to claim 2, characterized in that: A through hole for allowing the connecting pipe to pass through is provided on the side wall of the shell.

10. An air conditioner, characterized in that: The indoor unit comprises the indoor unit according to any one of claims 1 to 9.

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