Indoor unit of air conditioner

Abstract

The utility model provides an air conditioner indoor unit. The air conditioner indoor unit comprises a machine shell, an external air guide cylinder and a supporting device. The machine shell is provided with an air outlet. The external air guide cylinder is arranged outside the machine shell, the two ends of the external air guide cylinder in the length direction are open and form an air inlet and an air outlet respectively, the air inlet is connected with an air outlet of the air conditioner indoor unit so as to introduce air outlet airflow of the air outlet, the air outlet is used for discharging the air outlet airflow, and the external air guide cylinder is configured to be capable of being bent under stress so as to adjust the orientation of the air outlet. The supporting device is arranged on the machine shell, and the external air duct is movably connected to the supporting device so as to be supported by the supporting device. The air conditioner indoor unit solves the problems that an existing air conditioner indoor unit is monotonous in air outlet structure form and lacks innovation.

Description

Technical Field

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

[0002] Air conditioners are used to regulate indoor air, including adjusting the temperature, humidity, and air quality of the air, humidifying and dehumidifying the indoor air, introducing fresh air, etc. Air conditioners consist of a vapor compression refrigeration cycle system consisting of an evaporator, condenser, compressor, throttling device, and other necessary components. The air conditioner outputs cold / hot air through a fan to achieve cooling and heating of the indoor environment.

[0003] Most of the existing air conditioner indoor units are equipped with air outlet structures such as air guide plates and swing blades at the air outlet to adjust the air outlet direction and air outlet area of ​​the air outlet. The structure is simple and lacks innovation.

[0004] The embedded air conditioner indoor unit is a new type of air conditioner indoor unit, which is used for embedded installation, such as embedded in a cabinet or other cabinets. When the cabinet door is opened, the air inlet and outlet on the front side of the air conditioner indoor unit are exposed for air intake and air discharge. However, technicians have found that the air conditioning efficiency of the embedded air conditioner indoor unit is always low, and no good solution can be found. Utility Model Content

[0005] The purpose of the utility model is to provide an air-conditioning indoor unit which overcomes the above problems or at least partially solves the above problems.

[0006] The utility model aims to solve the problem that the air outlet structure of the existing air conditioner indoor unit is monotonous and lacks innovation.

[0007] Another purpose of the utility model is to solve the problem that it is difficult to improve the energy efficiency of the existing embedded air-conditioning indoor unit.

[0008] In particular, the utility model provides an air conditioner indoor unit, which comprises:

[0009] A casing having an air outlet;

[0010] an external air duct, arranged outside the housing, with both ends of the external air duct opened in the length direction, respectively constituting an air inlet and an air outlet, wherein the air inlet is connected to the air outlet of the air conditioner indoor unit to introduce the air flow from the air outlet, and the air outlet is used to discharge the air flow, and the external air duct is configured to be able to bend under force to adjust the direction of the air outlet; and

[0011] The supporting device is arranged on the housing, and the external air guide tube is movably connected to the supporting device to receive support from the supporting device.

[0012] Optionally, the supporting device is further configured to define a curved path of the external air guide cylinder.

[0013] Optionally, the supporting device comprises two positioning plates, the two positioning plates are fixedly arranged outside the housing and are respectively located on both sides of the external air guide tube, and each positioning plate is formed with a positioning groove; and

[0014] The two sides of the external air guide tube are respectively provided with positioning parts, each of the positioning parts can be slidably inserted into one of the positioning grooves, and during the bending process of the external air guide tube, each of the positioning parts slides along the positioning groove.

[0015] Optionally, each of the positioning portions is arranged adjacent to the air outlet.

[0016] Optionally, each of the positioning portions is configured to be clamped at any position of the positioning groove to position the external air guide tube after being bent.

[0017] Optionally, each of the positioning grooves passes through the corresponding positioning plate; and

[0018] Each of the positioning portions is columnar, and the positioning portion and the positioning groove are interference fit so as to be interference clamped at any position of the positioning groove.

[0019] Optionally, the two positioning plates extend from two opposite edges of the air outlet respectively in a direction away from the housing.

[0020] Optionally, the air outlet is opened on the front side of the housing;

[0021] The two positioning plates extend forward from two lateral edges of the air outlet respectively, and each positioning groove extends in the up-down direction;

[0022] The external air guide tube is configured to be able to bend up and down under force to adjust the up and down air outlet direction of the air outlet.

[0023] Optionally, the cylinder wall of the external air duct includes at least one telescopic wall and at least one follower wall, the telescopic wall is configured to be able to telescope along the length direction of the external air duct and maintain its shape after telescoped, and the shape of the follower wall changes with the telescopic wall, so as to change the direction of the air outlet by adjusting the degree of telescopic expansion of the telescopic wall.

[0024] Optionally, the number of the telescopic wall and the number of the follower wall are both two; and

[0025] The two telescopic walls are arranged opposite to each other with a spacing therebetween, and two follower walls are connected therebetween.

[0026] Optionally, each of the telescopic walls includes a plurality of wall panels arranged along the length direction of the external air duct, and each two adjacent wall panels are hingedly connected to allow the plurality of wall panels to be stressed to expand or fold in a wave-like shape, thereby achieving the extension or shortening of the telescopic wall.

[0027] The utility model is provided with an external air guide tube outside the indoor unit of the air conditioner, and uses the external air guide tube to guide the air flow of the air outlet, guides the air flow to a desired position, and realizes the adjustment of the air outlet direction. The utility model uses the external air guide tube to replace the traditional air outlet structure such as the traditional air guide plate and the swing blade, which is very clever and innovative, and has a simple overall structure and lower cost.

[0028] Furthermore, the air conditioner indoor unit of the utility model further comprises a supporting device, which is arranged on the housing and used to support the external air duct to prevent the external air duct with a long length from naturally falling outside the housing and affecting the appearance of the air conditioner indoor unit. In addition, the external air duct is movably connected to the supporting device to prevent the supporting device from hindering the bending of the external air duct.

[0029] Furthermore, in the indoor unit of the air conditioner of the utility model, the support device includes two positioning plates, which are fixedly arranged outside the housing and respectively located on both sides of the external air duct, and each positioning plate is formed with a positioning groove. The two sides of the external air duct are respectively provided with positioning parts, and each positioning part can be slidably inserted into a positioning groove. During the bending process of the external air duct, each positioning part slides along the positioning groove. In this way, the support device realizes the support and bending path guidance of the external air duct by using the positioning grooves on the two positioning plates, and the structure is simple and easy to implement.

[0030] Furthermore, in the air-conditioning indoor unit of the utility model, the cylinder wall of the external air duct includes at least one telescopic wall and at least one follower wall. The telescopic wall is configured to be able to telescope along the length direction of the external air duct and maintain its shape after telescoping. The shape of the follower wall changes with the telescopic wall's telescoping, so that the direction of the air outlet can be changed by adjusting the degree of telescoping of the telescopic wall. In this way, the user can manually adjust the air outlet direction of the external air duct, which provides a better experience.

[0031] Furthermore, in the external air duct of the utility model, the number of the telescopic wall and the follower wall are both two, and the two telescopic walls are arranged opposite to each other, and two follower walls are connected between the two. The utility model is provided with two opposite telescopic walls, and when one telescopic wall is extended, the other telescopic wall can be shortened, and the two cooperate to make the angle of the air outlet more adjustable. And because two opposite telescopic walls are provided, the external air duct can be more stably maintained in the telescopic shape after adjustment.

[0032] Furthermore, the external air duct of the utility model is particularly suitable for embedded air-conditioning indoor units. The inventors have found through research that embedded air-conditioning indoor units adopt a front airflow form, and the air inlet and the air outlet are arranged adjacent to each other and are very close. This causes a part of the outlet air flow to mix with the inlet air flow and flow back into the casing from the air inlet. Taking the cooling mode as an example, the temperature of these outlet air flows is relatively low in itself, and their mixing with the inlet air flow will cause the overall temperature of the inlet air flow to become lower, lowering the heat exchange between the inlet air flow and the heat exchanger, causing the heat exchanger to be unable to fully exert its heat exchange capacity, reducing its heat exchange efficiency, and further causing the air conditioner to have a reduced energy efficiency. To this end, the air-conditioning indoor unit of the utility model uses an external air duct to lead the outlet air flow away from the air inlet, to prevent the outlet air flow from mixing with the inlet air flow, to ensure the heat exchange efficiency of the heat exchanger, and thus to improve the energy efficiency of the air conditioner.

[0033] Based on the detailed description of some specific embodiments of the present invention in combination with the accompanying drawings below, 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

[0034] 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:

[0035] Figure 1 This is a schematic diagram of a state in which an indoor unit of an air conditioner is embedded in a cabinet according to an embodiment of the utility model;

[0036] Figure 2 yes Figure 1 The schematic diagram of the indoor unit of the air conditioner shown is a state diagram after the external air guide tube is bent downward;

[0037] Figure 3 yes Figure 1 A schematic cross-sectional view of an indoor unit of an air conditioner is shown;

[0038] Figure 4 yes Figure 1 The schematic diagram of the structure of the external air duct in the indoor unit of the air conditioner is shown;

[0039] Figure 5 yes Figure 4 The schematic diagram of the state where the external air guide tube is bent downwards is shown;

[0040] Figure 6 yes Figure 4 The schematic diagram of the state where the external air guide tube is bent downwards is shown;

[0041] Figure 7It is a schematic diagram of a partial section of a telescopic wall of an air guide tube in an indoor unit of an air conditioner according to an embodiment of the utility model;

[0042] Figure 8 yes Figure 7 Enlarged view of point A. DETAILED DESCRIPTION

[0043] In the description of this embodiment, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the utility model.

[0044] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, it is defined that the features "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features.

[0045] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited. 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.

[0046] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0047] Furthermore, in the description of this embodiment, a first feature being “above” or “below” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0048] 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 and obliquely 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 obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the embodiments of the present invention have the same meanings as those commonly understood by ordinary technicians in the technical field to which the present application belongs.

[0050] The embodiment of the utility model provides an air-conditioning indoor unit.

[0051] The indoor unit of the air conditioner is the indoor part of the split air conditioner or the indoor terminal model of the central air conditioner, which is used to adjust the indoor air, specifically, including adjusting the temperature, humidity, air quality of the air, humidifying, dehumidifying the indoor air, introducing fresh air, etc. The air conditioner can form a vapor compression refrigeration cycle system with an evaporator, condenser, compressor, throttling device and other necessary components to output cold air / hot air through the fan to achieve cooling and heating of the indoor environment.

[0052] Figure 1 This is a schematic diagram of a state in which an indoor unit of an air conditioner is embedded in a cabinet according to an embodiment of the utility model; Figure 2 yes Figure 1 The schematic diagram of the indoor unit of the air conditioner shown is a state diagram after the external air guide tube is bent downward; Figure 3 yes Figure 1 A schematic cross-sectional view of an indoor unit of an air conditioner is shown; Figure 4 yes Figure 1 The schematic diagram of the structure of the external air duct in the indoor unit of the air conditioner is shown; Figure 5 yes Figure 4 The schematic diagram of the state where the external air guide tube is bent downwards is shown; Figure 6 yes Figure 4 Schematic diagram of the state of the external air guide tube bent downward.

[0053] like Figures 1 to 6 As shown, the air conditioner indoor unit 20 of the embodiment of the utility model can generally include a casing 21, an external air duct 30 and a supporting device 40.

[0054] The housing 21 has an air outlet 212 for discharging air.

[0055] The external air duct 30 is disposed outside the housing 21, and its two ends in the length direction (or axial direction, i.e., the positive and negative directions of the x-axis indicated in the figure) are open, forming an air inlet 301 and an air outlet 302, respectively. The air inlet 301 is used to connect with the air outlet 212 of the air conditioner indoor unit 20 (e.g., Figure 1 and Figure 2 ) to introduce the outlet airflow of the air outlet 212, and the air outlet 302 is used to discharge the outlet airflow. The discharged outlet airflow can be blown to the indoor environment to adjust the indoor environment air. In addition, the external air guide 30 is configured to be able to bend under force to adjust the direction of the air outlet 302. Please compare Figure 1 and Figure 2 , or contrast Figure 3 , Figure 4 and Figure 5 .

[0056] The supporting device 40 is disposed on the housing 21 and is used to support the external air duct 30. The external air duct 30 is movably connected to the supporting device 40 to receive support thereof.

[0057] In the embodiment of the utility model, an external air duct 30 is provided on the outside of the air conditioner indoor unit 20, and the external air duct 30 can be used to guide the air flow of the air outlet 212 of the air conditioner indoor unit 20, and guide the air flow to a desired position to adjust the air outlet direction. The longer the external air duct 30 is, the farther the air flow can be guided, which enables the user to install the air conditioner indoor unit 20 in the most suitable position according to the specific layout of the room, and then use the external air duct 30 to guide the air flow to the most suitable place for air outlet, which makes the installation position of the air conditioner indoor unit 20 no longer limited. In the embodiment of the utility model, the external air duct 30 is used to replace the traditional air outlet structures such as the traditional air guide plate and the swing blade, which is very clever in conception and full of innovation, and the overall structure is simple and the cost is lower.

[0058] In addition, the air conditioner indoor unit 20 of the embodiment of the utility model further includes a supporting device 40, which is disposed on the housing 21 and is used to support the external air duct 30, so as to prevent the external air duct 30 with a long length from naturally falling outside the housing 21 and affecting the appearance of the air conditioner indoor unit 20. In addition, the external air duct 30 is movably connected to the supporting device 40, so as to prevent the supporting device 40 from hindering the bending of the external air duct 30.

[0059] The external air guide tube 30 is cylindrical, and can be cylindrical, square, or other similar shapes. Figure 1 ), elliptical cylinder or other cylinders. The embodiment of the utility model does not limit the overall shape of the external air duct 30. Of course, it is preferred that the shape of the air inlet 301 of the external air duct 30 is consistent with the shape of the air outlet 212, so that the two are completely sealed and connected to avoid leakage at the connection.

[0060] The end of the external air duct 30 with the air inlet 301 may be provided with a plurality of connection structures so as to be connected to the housing 21 of the air conditioner indoor unit 20. For example, the connection structure may be a hole or a threaded hole so that the external air duct 30 is connected to the housing 21 in a threaded manner. Alternatively, the connection structure is a buckle or a snap-fit ​​hole so that the external air duct 30 is connected to the housing 21 in a snap-fit ​​manner. Alternatively, the connection mechanism is only a flange of the external air duct 30 so that the external air duct 30 is connected to the housing 21 in an adhesive manner.

[0061] In some embodiments, the air conditioner indoor unit is wall-mounted or floor-standing. These two types of air conditioner indoor units are very common and will not be described in detail here. In other embodiments, the air conditioner indoor unit 20 is embedded, for embedding in a preset chamber. The chamber may be a chamber of a cabinet, a wardrobe or other cabinets. Alternatively, the chamber is a chamber formed by digging a groove in a building wall. The embodiment of the utility model does not limit the chamber. The embedded installation makes the air conditioner indoor unit 20 more concealed and does not affect the overall interior decoration style.

[0062] The inventor has found through research that the reason why the existing embedded air conditioner indoor unit has low air conditioning efficiency is related to its air intake method. The embedded air conditioner indoor unit adopts the front airflow form, and the air inlet 211 and the air outlet 212 are arranged adjacent to each other and very close. This causes a part of the outlet air flow to mix with the inlet air flow and flow back into the casing 21 from the air inlet. Taking the cooling mode as an example, the temperature of these outlet air flows is relatively low in itself, and their mixing with the inlet air flow will cause the overall temperature of the inlet air flow to become lower, lowering the heat exchange between the inlet air flow and the heat exchanger, causing the heat exchanger to be unable to fully exert its heat exchange capacity, reducing its heat exchange efficiency, and thus causing the air conditioner to have a reduced energy efficiency. For this reason, the air conditioner indoor unit 20 of the utility model embodiment uses an external air duct 30 to lead the outlet air flow away from the air inlet 211, avoid the outlet air flow from mixing with the inlet air flow, ensure the heat exchange efficiency of the heat exchanger, and thus improve the energy efficiency of the air conditioner. In other words, the external air duct 30 of the utility model embodiment is particularly suitable for embedded air conditioner indoor units.

[0063] In some embodiments, Figure 1 and Figure 2 As shown, the chamber is the chamber 101 of the cabinet 10. One side of the cabinet 10 is open. The air conditioner indoor unit 20 is embedded in the cabinet 10, and the front side of the air conditioner indoor unit faces the open side of the cabinet 10 so that the air inlet 211 and the air outlet 212 can take in and out air.

[0064] Figure 3 An optional form of the air conditioner indoor unit 20 is shown. Figure 3 Arrows indicate wind direction.

[0065] like Figure 3As shown, the air conditioner indoor unit 20 may generally include a housing 21, a fan 23, and a heat exchanger 22. The housing 21 is provided with an air inlet 211 for air intake and an air outlet 212 for air discharge, and the air inlet 211 and the air outlet 212 are provided on the same side of the housing 21, preferably on the front side. The air inlet 211 is preferably provided above the air outlet 212. In addition, the top of the housing 21 may also be provided with an air inlet 211 to increase the air intake. The housing 21 is used to accommodate the main components of the air conditioner indoor unit 20, including the fan 23, the heat exchanger 22, the electric control module, etc. The housing 21 is formed with an air duct 215. The fan 23 is provided in the housing 21, and is used to cause the air in the housing 21 to enter the housing 21 through the air inlet 211 to form an intake air flow. The heat exchanger 22 is provided in the housing 21, and is used to exchange heat with the intake air flow to form a heat exchange air flow. The heat exchange air flows through the air duct 215 to the air outlet 212. When the air conditioner operates in the cooling mode, the heat exchange air flow is the cold air flow. When the air conditioner operates in the heating mode, the heat exchange air flow is the hot air flow. Of course, the air conditioner can have only the cooling function, or have both the cooling and heating functions.

[0066] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the support device 40 is further configured to limit a bending path of the external air duct 30 so that the external air duct 30 is more firmly supported and the external air duct 30 is prevented from being bent in an impossible direction and thus being damaged.

[0067] Specifically, Figure 1 and Figure 2 As shown, the support device 40 includes two positioning plates 41, which are fixedly arranged on the outside of the housing 21 and respectively located on both sides of the external air duct 30, and each positioning plate 41 is formed with a positioning groove 411. The positioning groove 411 here includes a groove with a bottom wall and two side walls in a narrow sense, and also includes a long strip-shaped through hole. The two sides of the external air duct 30 are respectively provided with positioning parts 331, and each positioning part 331 can be slidably inserted into a positioning groove 411. During the bending process of the external air duct 30, each positioning part 331 slides along the positioning groove 411, so that the external air duct 30 can only slide along the extension direction of the positioning groove 411. The support device 40 uses the positioning grooves 411 on the two positioning plates 41 to achieve support and bending path guidance for the external air duct 30, and the structure is simple and easy to implement.

[0068] Furthermore, if Figure 1 and Figure 2 As shown, each positioning portion 331 can be arranged adjacent to the air outlet 302 , that is, the positioning portion 331 can be arranged at the edge of the air outlet end of the external air guide tube 30 .

[0069] In some embodiments, each positioning portion 331 is configured to be clamped at any position of the positioning groove 411 to position the bent external air duct 30. For example, a screw may be provided on the positioning portion 331, and the screw head may be tightened to be in close contact with the surface of the positioning plate 41. Alternatively, the positioning portion 331 and the positioning groove 411 may be interference fit to allow both to be clamped at any position of the positioning groove 411.

[0070] In some embodiments, Figure 1 and Figure 2 As shown, the two positioning plates 41 can extend from two opposite edges of the air outlet 212 in a direction away from the housing 21. Figure 1 and Figure 2 As shown, the air outlet 212 can be opened at the front side of the housing 21. Two positioning plates 41 extend forward from the two lateral edges of the air outlet 212, and each positioning groove 411 extends in the up-down direction. The external air guide 30 is configured to be able to bend up and down under force to adjust the up-down air outlet direction of the air outlet 302, that is, to adjust the angle between the air outlet airflow and the horizontal plane. For example, Figure 1 In the state shown, the external air guide 30 guides the outgoing air flow toward the front and upward. Figure 2 In the state shown, the external air guide tube 30 guides the outlet air flow toward the front and downward.

[0071] In some embodiments, each positioning plate 41 includes a first plate portion 4101 extending forward from the front surface of the housing 21 and a vertical plate 4102 connected to the first plate portion 4101 in the middle, and the positioning groove 411 is opened on the vertical plate 4102, that is, forming a "T" shape. In this way, the area of ​​the positioning plate 41 can be made smaller.

[0072] In some embodiments, Figures 4 to 6 As shown, the cylinder wall of the external air duct 30 includes at least one telescopic wall 31, 32 and at least one follower wall 33, 34. The telescopic walls 31, 32 are configured to be able to telescope along the length direction of the external air duct 30, and maintain the shape after telescoping. The shape of the follower walls 33, 34 changes with the telescoping of the telescopic walls 31, 32, so that the direction of the air outlet 302 can be changed by adjusting the degree of telescoping of the telescopic walls 31, 32 (such as Figure 5 , Figure 6 ).

[0073] by Figures 4 to 6 Take the following as an example to introduce the above adjustment method. Figures 4 to 6 In the embodiment shown, the wall of the external air guide cylinder 30 includes two telescopic walls 31, 32 and two follower walls 33, 34. Figure 4 In this state, the air outlet 302 discharges air toward the front. Figure 4On the basis of this, the telescopic wall 31 is extended and the telescopic wall 32 is shortened, so that the air outlet 302 of the external air guide tube 30 is directed obliquely downward on the paper surface, as shown in FIG. Figure 5 .exist Figure 4 On the basis of this, the telescopic wall 32 is extended and the telescopic wall 32 is shortened, so that the air outlet 302 of the external air guide tube 30 is directed obliquely upward on the paper surface, as shown in FIG. Figure 6 .

[0074] After the telescopic walls 31 and 32 are extended or shortened under the action of external force, they can remain in the extended / shortened state and will not return to the original state due to the disappearance of the external force. No external force is required to maintain them in the extended / shortened state.

[0075] The telescopic walls 31, 32 and the follower walls 33, 34 are sealed to avoid air leakage. It is understandable that when the telescopic walls 31, 32 are telescopic or extended, the edges of the follower walls 33, 34 will inevitably be pulled or squeezed by the telescopic walls 31, 32, and cannot maintain their original shape. For this reason, the embodiment of the utility model changes the shape of the follower walls 33, 34 with the telescopic walls 31, 32, realizes adaptive adjustment, avoids the follower walls 33, 34 interfering with the telescopic walls 31, 32, and also keeps the follower walls 33, 34 and the telescopic walls 31, 32 sealed at all times, avoiding the connection between the two being pulled or squeezed to produce air leakage gaps.

[0076] For example, each follower wall 33, 34 may be made of a soft elastic material, such as relatively soft rubber. Alternatively, the follower walls 33, 34 may be made of a non-elastic soft material, such as cloth, and after all the telescopic walls 31, 32 are fully extended, the follower walls 33, 34 are kept in a taut state, and when the telescopic walls 31, 32 are shortened, the follower walls 33, 34 are squeezed and wrinkled.

[0077] In some embodiments of the present invention, Figures 4 to 6 As shown, the number of the telescopic walls 31, 32 and the number of the follower walls 33, 34 are both two. The two telescopic walls 31, 32 are arranged opposite to each other with a gap, and two follower walls 33, 34 are connected between them. The two telescopic walls 31, 32 and the two follower walls 33, 34 are connected in sequence to form a cylinder.

[0078] In this embodiment, two opposite telescopic walls 31, 32 are provided. When one telescopic wall 31, 32 is extended, the other telescopic wall 31, 32 can be shortened. The two walls cooperate to make the angle of the air outlet 302 more adjustable. In addition, due to the two opposite telescopic walls 31, 32, the external air guide tube 30 can be more stably maintained in the telescopic shape after adjustment.

[0079] Of course, in other embodiments, a telescopic wall and a follower wall may be provided, or multiple telescopic walls and multiple follower walls may be provided, and the number may be combined in any way. It is understandable that the more telescopic walls there are, the more adjustable dimensions of the direction of the air outlet 302. For example, if only two telescopic walls 31 and 32 are provided, one-dimensional adjustment can be achieved. For example, when the two telescopic walls 31 and 32 are provided one above the other, the direction of the air outlet 302 can be adjusted in the up-and-down dimension, that is, the angle between the air outlet direction of the air outlet 302 and the horizontal direction can be adjusted. On this basis, two left and right telescopic walls are provided, and the direction of the air outlet 302 can be adjusted in the up-and-down dimension and the left-and-right dimension to achieve universal adjustment.

[0080] Figure 7 It is a schematic diagram of a partial section of a telescopic wall of an air guide tube in an indoor unit of an air conditioner according to an embodiment of the utility model; Figure 8 yes Figure 7 Enlarged view of point A.

[0081] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, each telescopic wall 31, 32 may include a plurality of wall panels 311, 312, 313, 314, 315 arranged along the length direction of the external air duct 30, and each adjacent two wall panels are hinged (rotatably connected) to allow the plurality of wall panels to be stretched or folded in a wave shape under force, thereby achieving the extension or shortening of the telescopic walls 31, 32. With such a design, the telescopic walls 31, 32 can be extended or retracted under the action of external force, and can remain in the retracted state after the external force disappears.

[0082] For example, Figure 6 The diagram shows a portion of the wall panels of the telescopic wall 31, including wall panels 311, 312, 313, 314, and 315. Wall panel 311 is adjacent to wall panel 312 and is hingedly connected, and the hinge axis 3120 line is perpendicular to the paper surface. Similarly, wall panel 312 is adjacent to wall panel 313 and is hingedly connected, and the hinge axis 3120 line is perpendicular to the paper surface. Wall panel 313 is adjacent to wall panel 314 and is hingedly connected, and the hinge axis 3120 line is perpendicular to the paper surface. In this way, multiple wall panels form a wave shape. In the process of multiple wall panels being forced to expand or fold in a wave shape, adjacent wall panels rotate relative to each other, causing the angle between the two to change. Specifically, in the process of multiple wall panels being forced to expand in a wave shape, the angle between each adjacent wall panel becomes larger. In the process of multiple wall panels being forced to fold in a wave shape, the angle between each adjacent wall panel becomes smaller.

[0083] For a preferred hinge method for each two adjacent wall panels, please refer to Figure 7 .

[0084] like Figure 7As shown, in each of the two adjacent wall panels, taking the wall panel 311 and the wall panel 312 as an example, a hinge shaft 3120 is provided at the edge of one wall panel 312, and a hinge tube 3110 is provided at the edge of the other wall panel 311. The hinge shaft 3120 is rotatably inserted into the hinge tube 3110, and the central axes of the two are collinear. The hinge tube 3110 has a notch 3113 penetrating through its wall, so that its cross section is in the shape of a major arc, thereby making way for the plate body part of the wall panel 312. Setting the hinge tube 3110 in the shape of a major arc can prevent the hinge shaft 3120 from detaching from the hinge tube 3110 through the notch 3113.

[0085] In some embodiments, some hinge shafts 3120 may be interference fit with corresponding hinge cylinders 3110. The purpose of the interference fit here is to increase the resistance of the hinge shaft 3120 and the hinge cylinder 3110 to rotate with each other, so that the telescopic walls 31, 32 maintain their shape after telescoping.

[0086] 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 that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

[0087] In the description of the present embodiment, the description with 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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. An air conditioner indoor unit, characterized in that include: A casing having an air outlet; An external air duct is arranged outside the housing, and its two ends in the length direction are open to respectively form an air inlet and an air outlet, the air inlet is connected to the air outlet of the air conditioner indoor unit to introduce the outlet air flow of the air outlet, and the air outlet is used to discharge the outlet air flow, and the external air duct is configured to be able to bend under force to adjust the direction of the air outlet; and The supporting device is arranged on the housing, and the external air guide tube is movably connected to the supporting device to receive support from the supporting device.

2. The air conditioner indoor unit according to claim 1, characterized in that: The support device is also configured to define a curved path of the external air duct.

3. The air conditioner indoor unit according to claim 2, characterized in that: The supporting device comprises two positioning plates, which are fixedly arranged outside the housing and respectively located on two sides of the external air guide tube, and each positioning plate is formed with a positioning groove; and The two sides of the external air guide tube are respectively provided with positioning parts, each of the positioning parts can be slidably inserted into one of the positioning grooves, and during the bending process of the external air guide tube, each of the positioning parts slides along the positioning groove.

4. The air conditioner indoor unit according to claim 3, characterized in that: Each of the positioning portions is disposed adjacent to the air outlet.

5. The air conditioner indoor unit according to claim 3, characterized in that: Each of the positioning portions is configured to be clamped at any position of the positioning groove to position the bent external air guide tube.

6. The air conditioner indoor unit according to claim 3, characterized in that: The two positioning plates extend from two opposite edges of the air outlet respectively in a direction away from the housing.

7. The air conditioner indoor unit according to claim 6, characterized in that: The air outlet is opened at the front side of the housing; The two positioning plates extend forward from two lateral edges of the air outlet respectively, and each positioning groove extends in the up-down direction; The external air guide tube is configured to be able to bend up and down under force to adjust the up and down air outlet direction of the air outlet.

8. The air conditioner indoor unit according to claim 1, characterized in that: The cylinder wall of the external air duct includes at least one telescopic wall and at least one follower wall. The telescopic wall is configured to be able to telescope along the length direction of the external air duct and maintain its shape after telescoping. The shape of the follower wall changes with the telescoping of the telescopic wall, so that the direction of the air outlet can be changed by adjusting the degree of telescoping of the telescopic wall.

9. The air conditioner indoor unit according to claim 8, characterized in that: The number of the telescopic wall and the number of the follower wall are both two; and The two telescopic walls are arranged opposite to each other with a spacing therebetween, and two follower walls are connected therebetween.

10. The air conditioner indoor unit according to claim 8, characterized in that: Each of the telescopic walls comprises a plurality of wall panels arranged along the length direction of the external air duct, and each two adjacent wall panels are hingedly connected to allow the plurality of wall panels to be stretched or folded in a wave-like shape under force, thereby achieving the extension or shortening of the telescopic wall.

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