Air conditioner indoor unit

Abstract

This utility model discloses an indoor air conditioner unit with switchable first and second states, comprising: a housing; an air vent component including a first air vent and a second air vent located at different positions on the housing, wherein in the first state, the first air vent is an air inlet, and in the second state, the second air vent is an air inlet; a fan component including a fan assembly disposed within the housing; and a filter assembly including a filter screen and a first drive assembly, wherein in the first state, the first drive assembly drives the filter screen to move to a position blocking the first air vent to filter the air entering through the first air vent, and in the second state, the first drive assembly drives the filter screen to move to a position blocking the second air vent to filter the air entering through the second air vent.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a wall-mounted air conditioner. Background Technology

[0002] With the technological advancements in the air conditioning indoor unit industry, people have higher expectations for the user experience of air conditioning indoor units. For example, some wall-mounted air conditioners use multiple air vents to improve airflow comfort, employing different vents for intake and exhaust in different modes such as cooling and heating. To improve the cleanliness of the incoming and outgoing air, filters need to be installed at the air inlets. Therefore, in existing air conditioning indoor units with multiple air inlets, multiple filters are required to filter the incoming air accordingly. Utility Model Content

[0003] The purpose of this invention is to provide a compact indoor air conditioning unit that can effectively filter incoming air with multiple air inlets.

[0004] This utility model discloses an indoor unit for an air conditioner, having a switchable first state and a second state, including:

[0005] case;

[0006] The air vent component includes a first air vent and a second air vent located at different positions on the housing. In a first state, the first air vent is an air inlet, and in a second state, the second air vent is an air inlet.

[0007] Fan components, including a fan assembly disposed within the housing;

[0008] A filter assembly includes a filter and a first drive assembly. In a first state, the first drive assembly drives the filter to move to a position that blocks the first air vent to filter the air entering through the first air vent. In a second state, the first drive assembly drives the filter to move to a position that blocks the second air vent to filter the air entering through the second air vent.

[0009] In some embodiments, the housing is provided with a curved slide, and the filter screen is slidably installed in the curved slide relative to the curved slide. The filter screen is a flexible filter screen. The first driving component drives the flexible filter screen to slide along the curved slide to move the filter screen to a position that blocks the first air vent and to a position that blocks the second air vent. When the flexible filter screen slides along the curved slide, the curved slide causes the flexible filter screen to be deformed into a curved surface structure that matches the contour of the first air vent or the second air vent.

[0010] In some embodiments, the first drive assembly includes a drive gear disposed on the housing and a rack disposed on the filter screen that meshes with the drive gear.

[0011] In some embodiments, the indoor unit of the air conditioner is a wall-mounted air conditioner, the first air outlet and the second air outlet are located at the lower end and the upper end of the wall-mounted air conditioner, respectively, the housing includes a U-shaped panel, the first air outlet and the second air outlet are disposed on the panel, and the curved slide is disposed on the panel.

[0012] In some embodiments, a heat exchanger disposed within the housing is further included. The fan assembly includes a mounting bracket rotatably disposed relative to the housing, a second drive assembly drivenly connected to the mounting bracket, and a cross-flow fan. The cross-flow fan includes an impeller and baffle walls and volutes arranged opposite to each other on both sides of the impeller for air outlet from the impeller. The baffle walls and volutes are mounted on the mounting bracket. The mounting bracket has a first angular position and a second angular position. In the first angular position, the outlet of the cross-flow fan duct formed by the baffle walls and volutes faces the second air outlet. In the second angular position, the outlet of the cross-flow fan duct formed by the baffle walls and volutes faces the first air outlet. The second drive assembly is used to drive the mounting bracket to rotate relative to the housing to switch between the first angular position and the second angular position. During air supply operation, the fan assembly drives air to enter the housing from one of the first air outlet and the second air outlet and exit the housing from the other. The air exchanges heat with the heat exchanger during its flow within the housing.

[0013] In some embodiments, the system further includes an extension wall assembly and a controller signal-connected to the extension wall assembly and the fan component. The extension wall assembly includes an extension wall and a third drive assembly for driving the extension wall to switch to different positions. When the mounting bracket is in a first angular position and the extension wall is in the first position, one end of the extension wall overlaps with one of the volute tongue and the shielding wall to extend the length of the wall surface of the air outlet duct formed by the overlapping objects facing the second air outlet. When the mounting bracket is in a second angular position and the extension wall is in the second position, one end of the extension wall overlaps with the volute tongue. The tongue and the other of the shielding walls overlap to extend the length of the wall surface of the air inlet duct facing the second air vent formed by the overlapping objects. In a first state, the controller controls the mounting bracket to switch to a first angular position and controls the extension wall to switch to a first position. In a second state, the controller controls the mounting bracket to switch to a second angular position and controls the extension wall to switch to a second position. During the switching of the mounting bracket between the first angular position and the second angular position, the controller controls the third drive assembly to drive the extension wall to a third position that avoids the rotation of the volute tongue and the shielding wall.

[0014] In some embodiments, the device further includes a first limiting portion and a second limiting portion disposed on the housing; the first limiting portion is configured to contact one of the volute tongue and the blocking wall when the mounting bracket rotates from the second angular position to the first angular position to restrict the mounting bracket to the first angular position, wherein the contact object of the first limiting portion is different from the overlap object of the extension wall when the mounting bracket is in the first angular position and the extension wall is in the first position; the second limiting portion is configured to contact one of the volute tongue and the blocking wall when the mounting bracket rotates from the first angular position to the second angular position to restrict the mounting bracket to the second angular position, wherein the contact object of the second limiting portion is the same as the overlap object of the extension wall when the mounting bracket is in the second angular position and the extension wall is in the second position.

[0015] In some embodiments, the device further includes a mounting component, which includes a mounting bracket for mounting the heat exchanger fixedly connected to the housing and a water collection tray for receiving condensate from the heat exchanger, the water collection tray being integrally formed with the mounting bracket.

[0016] In some embodiments, the device further includes a mounting component comprising a first mounting portion and a second mounting portion located on opposite sides of the heat exchanger for mounting the heat exchanger, one end of the first mounting portion and the second mounting portion being connected to the second air outlet; in a first state, one end of the extension wall overlaps with the end of the first mounting portion away from the second air outlet, and the two portions of the volute tongue and the shielding wall that do not overlap with the extension wall overlap with the ends of the second mounting portion away from the second air outlet, and an air outlet duct of the cross-flow fan facing the second air outlet is formed between the first mounting portion and the second mounting portion.

[0017] In some embodiments, an arc-shaped block is provided at the end of the extension wall near the first mounting portion, and the axis of the arc-shaped block is the axis of rotation of the extension wall relative to the housing. When the extension wall is in the first position and the second position, the surface of the arc-shaped block remains in contact with the first mounting portion.

[0018] Based on the air conditioner indoor unit provided by this utility model, by setting a filter screen and moving its position, the air intake of different air inlets is filtered. This can effectively filter the air intake of an air conditioner indoor unit with multiple air inlets, while making the structure of the air conditioner indoor unit more compact and helping to reduce the weight of the air conditioner indoor unit.

[0019] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a cross-sectional view of the indoor unit of the air conditioner according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the indoor unit of the air conditioner.

[0023] Figure 3 for Figure 1 The diagram shows the structure of the filter screen in the indoor unit of an air conditioner.

[0024] Figure 4 This is a cross-sectional view of the indoor unit of an air conditioner in a first state according to another embodiment of the present invention;

[0025] Figure 5 for Figure 4The illustrated embodiment shows a cross-sectional view of the indoor unit of the air conditioner in the second state. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] like Figures 1 to 5 As shown, the indoor unit of the air conditioner in this embodiment is installed indoors. The indoor unit includes a housing 1, an air outlet component, a fan component, and a filter assembly. The indoor unit has a switchable first state and a second state.

[0032] The air vent component includes a first air vent 21 and a second air vent 22 located at different positions on the housing 1. The first air vent 21 and the second air vent 22 are used for air intake or air exhaust. In the first state of the indoor unit, the first air vent 21 is the air intake of the indoor unit. In the embodiment shown in the figure, the air exhaust of the indoor unit is the second air vent 22. In some embodiments not shown in the schematic diagram, the housing of the indoor unit has other air vents besides the first and second air vents; these other air vents are air exhausts. In the second state of the indoor unit, the second air vent 22 is the air intake. In the embodiment shown in the figure, the air exhaust of the indoor unit is the first air vent 21. In some embodiments not shown in the schematic diagram, the housing of the indoor unit has other air vents besides the first and second air vents; these other air vents are air exhausts. That is, the air intake of the indoor unit in this embodiment is different in the first and second states.

[0033] The fan component includes a fan assembly housed within the housing 1. The fan assembly includes a cross-flow fan or an axial fan. In a first state, the air conditioning indoor unit operates, and the fan assembly drives air into the housing 1 through a first air vent 21. In a second state, the air conditioning indoor unit operates, and the fan assembly drives air into the housing 1 through a second air vent 22.

[0034] The filter assembly includes a filter 42 and a first drive assembly 41. In a first state, the first drive assembly 41 drives the filter 42 to move to a position blocking the first air vent 21 to filter the air entering through the first air vent 21. In a second state, the first drive assembly 41 drives the filter 42 to move to a position blocking the second air vent 22 to filter the air entering through the second air vent 22. The movement of the filter 42 can be translational, rotational, or a combination of translational and rotational. Since the air vents of the indoor unit are different in different states, the filter will move to the corresponding air vent in each state to filter the incoming air.

[0035] In this embodiment, the indoor unit of the air conditioner filters air from different air inlets by moving a filter screen 42. This allows for effective filtration of the air entering the indoor unit, which has multiple air inlets, while making the structure of the indoor unit more compact. Since the number of filters 42 can be reduced, it also helps to reduce the weight of the indoor unit.

[0036] In some embodiments, such as Figures 1 to 5 As shown, the housing 1 is provided with a curved slide 12. The filter screen 42 is slidably installed within the curved slide 12. The filter screen 42 is a flexible filter screen, meaning it can deform. In the embodiment shown, the deformation is elastic deformation, making it an elastic filter screen. The first drive assembly 41 drives the flexible filter screen 42 to slide along the curved slide 12, moving it to a position that blocks the first air vent 21 and to a position that blocks the second air vent 22. When the flexible filter screen 42 slides along the curved slide 12, the curved slide 12 causes the flexible filter screen 42 to deform into a curved surface structure that matches the contour of the first air vent 21 or the second air vent 22. In the embodiment shown, the flexible filter screen is a flexible plate-like structure, and the curved slide 12 is also plate-like. The flexible filter screen is located within the curved slide 12, and the first drive assembly drives the flexible filter screen to slide along the curved slide 12. In this embodiment, the flexible filter is disposed within the curved slide 12. When the flexible filter slides along the curved slide, the curved slide will accurately guide the flexible filter to the position that blocks the first air vent 21 or the second air vent 22. At the same time, the flexible filter will also deform when it slides along the curved slide. The shape design of the curved slide allows the shape of the flexible filter to match the first air vent or the second air vent when blocking the first air vent or the second air vent. For example, the flexible filter can cover the first air vent and the second air vent well, thereby enabling accurate and effective air intake filtration of the first air vent and the second air vent.

[0037] In some embodiments, as shown in the figure, the first drive assembly 41 includes a drive gear disposed on the housing 1 and a rack disposed on the filter screen 42 that meshes with the drive gear. In the embodiment shown in the figure, the rack meshes with the drive gear in the area corresponding to the straight slide portion of the curved slide. By providing a rack on the flexible filter screen in this embodiment, the rack can form accurate and effective transmission when it engages with the drive gear, and at the same time, the rack can better adapt to the deformation of the flexible filter screen.

[0038] In some embodiments, the indoor unit of the air conditioner is a wall-mounted air conditioner. The first air vent 21 and the second air vent 22 are located at the lower and upper ends of the wall-mounted air conditioner, respectively. The housing 1 includes a U-shaped panel 11, on which the first air vent 21 and the second air vent 22 are disposed. A curved slide rail 12 is disposed on the panel 11. The upper and lower ends are referenced after the wall-mounted air conditioner is installed on the wall. The descriptions of the upper and lower positions in this application are all based on the position of the wall-mounted air conditioner after it is installed on the wall. The upper end of the wall-mounted air conditioner is the end located at the top, and the lower end is the end located at the bottom. In this embodiment, the wall-mounted air conditioner can heat and cool. The first and second states of the indoor unit correspond to the cooling state and the heating state, respectively. When the air conditioner is cooling or heating, the cold air density is high, and the cold air blows downwards, which can easily lead to cold feet and a hot head, resulting in an uncomfortable experience. In this embodiment, the wall-mounted air conditioner, by switching between a first state and a second state during cooling and heating, allows cold air to be output from the top during cooling, avoiding direct airflow to people. Furthermore, the cold air sinks downwards due to gravity, providing a more comprehensive cooling effect and greater comfort. During heating, hot air is output from the bottom; its lower density allows it to rise, improving heating uniformity and achieving a more comprehensive heating effect. Simultaneously, the arrangement of the first air vent 21 and the second air vent 22 on the panel 11, along with the curved slide rail 12 on the U-shaped panel 11, facilitates the design and arrangement of the curved slide rail. This also helps to better guide and deform the flexible filter, enabling the flexible filter to better filter the incoming air from the first and second air vents.

[0039] In some embodiments, such as Figure 4 and Figure 5As shown, the indoor unit of the air conditioner also includes a heat exchanger 5 housed within the casing 1. The fan assembly includes a mounting bracket rotatably mounted relative to the casing 1, a second drive assembly drivenly connected to the mounting bracket, and a cross-flow fan. The cross-flow fan includes an impeller 31 and baffles 33 and a volute 32 arranged opposite to each other on both sides of the impeller 31 for air outlet. A cross-flow fan, also known as a cross-flow fan, was proposed by the French engineer Mortier in 1892. Its impeller is multi-bladed, long cylindrical, with forward-curving multi-bladed blades. The structure of a cross-flow fan includes the impeller, baffles, and volute. By using a shielding wall to partially block the outer circumference of the impeller and a volute tongue to separate the inlet and outlet sides of the impeller's outer circumference, the vortex center of the vortex entering the impeller moves closer to the volute tongue. Therefore, when the impeller rotates, the airflow enters from the unblocked inlet side of the impeller's outer circumference, passes through the impeller's interior, and exits from the outlet side between the shielding wall and the volute tongue, forming the working airflow. Both the shielding wall and the volute tongue are important working components of the cross-flow fan.

[0040] In the embodiment shown in the figure, the indoor unit of the air conditioner is a wall-mounted unit. The shielding wall 33 and the volute tongue 32 are mounted on a mounting bracket. The mounting bracket has a first angular position and a second angular position. In the first angular position, the outlet of the cross-flow fan formed by the shielding wall 33 and the volute tongue 32 faces the second air inlet 22, and the first air inlet 21 is the air inlet. In the second angular position, the outlet of the cross-flow fan formed by the shielding wall 33 and the volute tongue 32 faces the first air inlet 21, and the second air inlet 22 is the air inlet. The second drive assembly is used to drive the mounting bracket to rotate relative to the housing 1 so that the mounting bracket switches between the first angular position and the second angular position. In this embodiment, both the shielding wall 33 and the volute tongue are mounted on the mounting bracket, and the mounting bracket can rotate relative to the housing, thereby driving the shielding wall 33 and the volute tongue 32 to rotate as a whole. In the embodiment shown in the figure, the rotation axis of the mounting bracket relative to the housing is coaxial with the rotation axis of the impeller. During air supply operation, the fan assembly drives air to enter the housing 1 through one of the first air inlet 21 and the second air inlet 22, and exits the housing 1 through the other. The air exchanges heat with the heat exchanger 5 while flowing within the housing 1. In this embodiment, the rotation of the mounting bracket allows for switching between the air inlet and outlet states of the first and second air inlets. This enables flexible selection of different air inlets as inlets and outlets depending on the cooling or heating state, resulting in a simple and compact structure with convenient and reliable air inlet switching. Simultaneously, the rotation of the mounting bracket causes the shielding wall and volute to rotate as a whole. The shielding wall and volute always revolve around the impeller, effectively shielding and separating the incoming and outgoing air on the outer circumference of the impeller. This helps maintain the clearance between the shielding wall, volute, and impeller, improving structural reliability.

[0041] In some embodiments, such as Figure 4 and Figure 5As shown, the indoor unit of the air conditioner also includes an extension wall assembly and a controller connected to the extension wall assembly and the fan assembly via signals. The extension wall assembly includes an extension wall 6 and a third drive assembly for driving the extension wall 6 to switch to different positions. When the mounting bracket is in a first angle position and the extension wall 6 is in the first position, one end of the extension wall 6 overlaps with one of the two, the volute tongue 32 and the shielding wall 33, to extend the length of the wall surface of the air outlet duct facing the second air vent 22 formed by the overlapped object. In the embodiment shown, one end of the extension wall 6 overlaps with the volute tongue 32. When the mounting bracket is in a second angle position and the extension wall 6 is in the second position, one end of the extension wall 6 overlaps with the other of the two, the volute tongue 32 and the shielding wall 33, to extend the length of the wall surface of the air inlet duct facing the second air vent 22 formed by the overlapped object. In the embodiment shown, one end of the extension wall 6 overlaps with the shielding wall. In the first state, the controller controls the mounting bracket to switch to the first angular position and controls the extension wall 6 to switch to the first position. In the second state, the controller controls the mounting bracket to switch to the second angular position and controls the extension wall 6 to switch to the second position. During the switching process between the first and second angular positions of the mounting bracket, the controller controls the third drive assembly to drive the extension wall 6 to a third position that avoids the rotation of the volute tongue 32 and the blocking wall 33. That is, when the extension wall 6 is in the third position, the extension wall will not interfere with the rotation of the volute tongue 32 and the blocking wall 33. The third position of the extension wall in the two different processes of switching the mounting bracket from the first angular position to the second angular position and switching the mounting bracket from the second angular position to the first angular position can be set to the same or different. This embodiment, by setting an extension wall and a third driving component to drive the rotation of the extension wall, can extend the wall length of the air outlet duct or the air inlet duct of the cross-flow fan, thereby improving the air outlet and air inlet efficiency of the cross-flow fan. At the same time, the extension wall can be driven to a third position by the third driving component, which also ensures that the switching process of the direction of the air outlet duct of the cross-flow fan is not interfered with, making it smoother and more reliable.

[0042] In some embodiments, as shown in the figure, the indoor unit of the air conditioner further includes a first limiting part 81 and a second limiting part 82 disposed on the housing 1; the first limiting part 81 is used to contact one of the volute tongue 32 and the shielding wall 33 when the mounting bracket rotates from the second angular position to the first angular position to limit the mounting bracket to the first angular position, and in the embodiment shown in the figure, it contacts the shielding wall. The contact object of the first limiting part 81 is different from the overlapping object of the extension wall 6 when the mounting bracket is in the first angular position and the extension wall 6 is in the first position. In the embodiment shown in the figure, the contact object of the first limiting part 81 and the overlapping object of the extension wall 6 when the mounting bracket is in the first angular position and the extension wall 6 is in the first position are the shielding wall and the volute tongue, respectively. The second limiting part 82 is used to contact one of the volute tongue 32 and the shielding wall 33 when the mounting bracket rotates from the first angular position to the second angular position to restrict the mounting bracket to the second angular position. In the embodiment shown in the figure, it is the shielding wall. The contact object of the second limiting part 82 and the overlapping object of the extension wall 6 when the mounting bracket is in the second angular position and the extension wall 6 is in the second position are the same. In the embodiment shown in the figure, the contact object of the second limiting part 82 and the overlapping object of the extension wall 6 when the mounting bracket is in the second angular position and the extension wall 6 is in the second position are both shielding walls. Specifically, the second limiting part 82 contacts one end of the shielding wall, and the extension wall 6 overlaps at the other end of the shielding wall. In the embodiment shown in the figure, both the first limiting part 81 and the second limiting part 82 are groove-shaped structures. In this embodiment, by setting the first limiting part 81 and the second limiting part 82, the mounting bracket can be accurately limited to the first angle position or the second angle position, thereby realizing reliable switching between the first state and the second state. At the same time, it also helps to accurately overlap the extension wall in different states, ensuring the improvement of the air intake or exhaust efficiency of the cross-flow fan.

[0043] In some embodiments, the indoor unit of the air conditioner further includes a mounting component, which includes a mounting bracket 731 for mounting a heat exchanger and a drip tray 732 for collecting condensate from the heat exchanger, both fixedly connected to the housing 1. The drip tray 732 is integrally formed with the mounting bracket 731. In this embodiment, the drip tray 732 and the mounting bracket 731 are integrally formed, which helps simplify the structure and assembly, and improves the strength and positional accuracy of the structural components.

[0044] In some embodiments, as shown in the figure, the indoor unit of the air conditioner further includes a mounting component, which includes a first mounting portion 71 and a second mounting portion 72 located on opposite sides of the heat exchanger and used for mounting the heat exchanger. One end of the first mounting portion 71 and the second mounting portion 72 are respectively connected to the second air outlet 22. In a first state, one end of the extension wall 6 overlaps with the end of the first mounting portion 71 away from the second air outlet 22, and the two parts of the volute tongue 32 and the shielding wall 33 that do not overlap with the extension wall 6 overlap with the end of the second mounting portion 72 away from the second air outlet 22 (in the embodiment shown in the figure, that is, the shielding wall does not overlap with the extension wall 6 in the first state, and the shielding wall overlaps with the end of the second mounting portion 72 away from the second air outlet 22). An air outlet duct of the cross-flow fan facing the second air outlet 22 is formed between the first mounting portion 71 and the second mounting portion 72. The arrangement of the first mounting part and the second mounting part in this embodiment can better guide the air inlet and outlet of the cross-flow fan, thereby improving the air inlet and outlet efficiency. At the same time, the heat exchanger is located between the first mounting part 71 and the second mounting part 72, which also enables the air inlet and outlet driven by the cross-flow fan to exchange heat with the heat exchanger better, thereby improving the heat exchange efficiency.

[0045] In some embodiments, an arc-shaped block 62 is provided at the end of the extension wall 6 near the first mounting portion 71. The axis of the arc-shaped block 62 is the axis of rotation of the extension wall 6 relative to the housing 1. When the extension wall 6 is in the first position and the second position, the surface of the arc-shaped block 62 remains in contact with the first mounting portion 71. In the embodiment shown in the figure, the extension wall switches between the first position, the second position and the third position by rotation. During the rotation, the surface of the arc-shaped block 62 is always in contact with the first mounting portion 71, thereby ensuring the guiding effect of the first mounting portion and the second mounting portion on the air intake and exhaust of the cross-flow fan, preventing air leakage and ensuring the air intake and exhaust efficiency of the cross-flow fan.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An indoor unit for an air conditioner, characterized in that, It has a switchable first state and a second state, including: Shell (1); The air vent component includes a first air vent (21) and a second air vent (22) located at different positions on the housing (1). In a first state, the first air vent (21) is an air inlet, and in a second state, the second air vent (22) is an air inlet. The fan component includes a fan assembly disposed within the housing (1); The filter assembly includes a filter (42) and a first drive assembly. In a first state, the first drive assembly drives the filter (42) to move to a position that blocks the first air vent (21) to filter the air intake of the first air vent (21). In a second state, the first drive assembly drives the filter (42) to move to a position that blocks the second air vent (22) to filter the air intake of the second air vent (22).

2. The air conditioner indoor unit as described in claim 1, characterized in that, The housing (1) is provided with a curved slide, and the filter (42) is slidably installed in the curved slide relative to the curved slide. The filter (42) is a flexible filter. The first driving component drives the flexible filter (42) to slide along the curved slide so that the filter (42) moves to the position of blocking the first air vent (21) and to the position of blocking the second air vent (22). When the flexible filter (42) slides along the curved slide, the curved slide causes the flexible filter (42) to be deformed into a curved surface structure that matches the contour of the first air vent (21) or the second air vent (22).

3. The air conditioner indoor unit as described in claim 2, characterized in that, The first drive assembly includes a drive gear disposed on the housing (1) and a rack disposed on the filter screen (42) that meshes with the drive gear.

4. The air conditioner indoor unit as described in claim 2, characterized in that, The indoor unit of the air conditioner is a wall-mounted air conditioner. The first air vent (21) and the second air vent (22) are located at the lower end and the upper end of the wall-mounted air conditioner, respectively. The housing (1) includes a U-shaped panel (11). The first air vent (21) and the second air vent (22) are provided on the panel (11). The curved slide is provided on the panel (11).

5. The air conditioner indoor unit as described in claim 1, characterized in that, It also includes a heat exchanger disposed within the housing (1). The fan assembly includes a mounting bracket (34) rotatably disposed relative to the housing (1), a second drive assembly drivenly connected to the mounting bracket (34), and a cross-flow fan. The cross-flow fan includes an impeller (31) and baffles (33) and volutes (32) arranged opposite to each other on both sides of the impeller (31) for air outlet of the impeller (31). The baffles (33) and the volutes (32) are mounted on the mounting bracket (34). The mounting bracket (34) has a first angular position and a second angular position. In the first angular position, the cross-flow fan formed by the baffles (33) and the volutes (32) is... The outlet of the air duct of the machine faces the second air inlet (22), the mounting bracket (34) is in the second angular position, the outlet of the air duct of the cross-flow fan formed by the shielding wall (33) and the volute tongue (32) faces the first air inlet (21), the second drive assembly is used to drive the mounting bracket (34) to rotate relative to the housing (1) to switch between the first angular position and the second angular position, when the air supply is working, the fan assembly drives the air to enter the housing (1) from one of the first air inlet (21) and the second air inlet (22) and exit the housing (1) from the other, and the air exchanges heat with the heat exchanger during the flow of the air in the housing (1).

6. The air conditioner indoor unit as described in claim 5, characterized in that, It also includes an extension wall assembly and a controller connected to the extension wall assembly and the fan component via signals. The extension wall assembly includes an extension wall and a third drive assembly for driving the extension wall to switch to different positions. When the mounting bracket (34) is in a first angular position and the extension wall is in the first position, one end of the extension wall overlaps with one of the volute tongue (32) and the shielding wall (33) to extend the length of the wall surface of the air outlet duct facing the second air outlet (22) formed by the overlapped object. When the mounting bracket (34) is in a second angular position and the extension wall is in the second position, one end of the extension wall overlaps with the volute tongue (32) and the shielding wall. The other of the two walls (33) overlaps to extend the length of the wall surface of the air inlet duct facing the second air vent (22) formed by the object it overlaps with. In the first state, the controller controls the mounting bracket (34) to switch to a first angular position and controls the extension wall to switch to a first position. In the second state, the controller controls the mounting bracket (34) to switch to a second angular position and controls the extension wall to switch to a second position. During the switching of the mounting bracket (34) between the first angular position and the second angular position, the controller controls the third drive assembly to drive the extension wall to a third position that avoids the rotation of the volute tongue (32) and the shielding wall (33).

7. The air conditioner indoor unit as described in claim 6, characterized in that, It also includes a first limiting part and a second limiting part disposed on the housing (1); the first limiting part is used to contact one of the volute tongue (32) and the shielding wall (33) when the mounting bracket (34) rotates from the second angular position to the first angular position to restrict the mounting bracket (34) to the first angular position, the contact object of the first limiting part is different from the overlapping object of the extension wall when the mounting bracket (34) is in the first angular position and the extension wall is in the first position; the second limiting part is used to contact one of the volute tongue (32) and the shielding wall (33) when the mounting bracket (34) rotates from the first angular position to the second angular position to restrict the mounting bracket (34) to the second angular position, the contact object of the second limiting part is the same as the overlapping object of the extension wall when the mounting bracket (34) is in the second angular position and the extension wall is in the second position.

8. The air conditioner indoor unit as described in claim 6, characterized in that, It also includes an installation component, which includes a mounting bracket for mounting the heat exchanger and a water receiving tray for receiving the condensate of the heat exchanger, which are fixedly connected to the housing (1). The water receiving tray is integrally formed with the mounting bracket.

9. The air conditioner indoor unit as described in claim 6, characterized in that, It also includes mounting components, which include a first mounting part and a second mounting part located on opposite sides of the heat exchanger and used for mounting the heat exchanger, with one end of the first mounting part and the second mounting part respectively connected to the second air outlet (22); In the first state, one end of the extension wall overlaps with the end of the first mounting part away from the second air outlet (22), and the two ends of the volute tongue (32) and the shielding wall (33) that do not overlap with the extension wall overlap with the ends of the second mounting part away from the second air outlet (22), and an air outlet duct of the cross-flow fan facing the second air outlet (22) is formed between the first mounting part and the second mounting part.

10. The air conditioner indoor unit as described in claim 9, characterized in that, An arc-shaped block is provided at the end of the extension wall near the first mounting part. The axis of the arc-shaped block is the axis of rotation of the extension wall relative to the housing (1). When the extension wall is in the first position and the second position, the surface of the arc-shaped block is in contact with the first mounting part.

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