Indoor unit of air conditioner

Abstract

The utility model discloses an air conditioner indoor unit which comprises a shell. The air port component comprises a first air port and a second air port; a heat exchanger; the fan component comprises a mounting frame and a cross-flow fan which are rotatably arranged relative to the shell, the cross-flow fan comprises an impeller and two fan parts, the two fan parts are a shielding wall and a volute tongue respectively, the fan parts are mounted on the mounting frame, at least one fan part can rotate relative to the mounting frame, the fan component has a first state and a second state, and in the first state, at least one fan part can rotate relative to the mounting frame; in the first state, an outlet of an air outlet duct of the cross-flow fan faces the first air opening, in the second state, the outlet of the air outlet duct of the cross-flow fan faces the second air opening, and the first driving part drives the mounting frame to rotate relative to the shell and enables the at least one fan part to rotate relative to the mounting frame so that the fan part can be switched between the first state and the second state; the fan component drives air to enter the shell from one of the first air opening and the second air opening and to be sent out of the shell from the other of the first air opening and the second air opening, and the air exchanges heat with the heat exchanger during flowing in the shell.

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] Currently, most mainstream air conditioner indoor units on the market share the same air duct for different operating modes, including cooling and heating, with the air outlet located at the bottom, mostly downward-facing. However, the different physical characteristics of hot and cold air place different requirements on the air duct and the direction of airflow. A single air duct limits the air delivery range and cooling / heating efficiency. Current solutions mostly involve changing the direction of airflow by switching air guide vanes, but the improvement is minimal and cannot meet user needs. Furthermore, the large extension distance of the air guide vanes affects the overall appearance. With the technological advancements in the air conditioner indoor unit industry, some wall-mounted air conditioners, for example, employ multiple air outlets to improve airflow comfort, using different outlets for air intake and exhaust in different cooling and heating modes. On the one hand, cold air and hot air have different physical properties. On the other hand, in order to develop more types of air conditioner indoor unit products, the design of the air outlet structure for hot air output and the air outlet structure for cold air output may be different. For example, the design of the air duct width for the air outlet structure for cold air output and the air duct width for the air outlet structure for hot air output may need to be different. This puts forward higher requirements for whether the air conditioner indoor unit can reliably and effectively switch the air inlet and outlet in different modes. Utility Model Content

[0003] The purpose of this invention is to provide an indoor air conditioning unit that can reliably and effectively switch between air inlets and outlets.

[0004] This utility model discloses an indoor unit for an air conditioner, comprising:

[0005] case;

[0006] The air vent component includes a first air vent and a second air vent located at different positions on the housing;

[0007] The heat exchanger is located inside the housing;

[0008] A fan component, disposed within the housing, includes a mounting bracket rotatably disposed relative to the housing, a first drive member drivenly connected to the mounting bracket, and a cross-flow fan. The cross-flow fan includes an impeller and two fan components arranged opposite to each other on both sides of the impeller for air outlet from the impeller. The two fan components are a baffle wall and a volute, respectively. The fan components are mounted on the mounting bracket, and at least one fan component is rotatable relative to the mounting bracket. The fan component has a first state and a second state. In the first state, the outlet of the air outlet duct of the cross-flow fan formed by the baffle wall and the volute faces the first air inlet. In the second state, the outlet of the air outlet duct of the cross-flow fan formed by the baffle wall and the volute faces the second air inlet. The fan component is configured to: drive the mounting bracket to rotate relative to the housing and cause the at least one fan component to rotate relative to the mounting bracket via the first drive member to switch the fan component between the first state and the second state.

[0009] During air supply operation, the fan component drives air to enter the housing from one of the first air inlet and the second air inlet and exit the housing from the other air inlet, and the air exchanges heat with the heat exchanger during its flow within the housing.

[0010] The indoor unit of this air conditioner, by setting first and second air vents at different positions, and by setting a cross-flow fan and mounting bracket, allows the cross-flow fan's outlet duct to face different air vents through the rotation of the mounting bracket and the overall rotation of the fan's shield and volute. This enables switching between the air intake and exhaust functions of the first and second air vents, allowing for flexible selection of different air vents as air inlets and outlets depending on the cooling or heating state. The structure is simple and compact, and the air vent switching is convenient and reliable. Furthermore, since at least one of the cross-flow fan's shield and volute can rotate relative to the mounting bracket, the angle between the shield and volute can be adjusted when the mounting bracket rotates to face different air vents. This allows for better alignment and matching of different air vents, ensuring good air intake and exhaust performance for the indoor unit when switching between different air vents. Simultaneously, it improves the versatility of the fan components in the indoor unit, expanding its design scope.

[0011] In some embodiments, the shafts of the fan component that rotate relative to the mounting bracket, the shafts of the impeller, and the shafts of the mounting bracket that rotate relative to the housing are all coaxial.

[0012] In this embodiment, the rotating shaft of the fan component that is rotatable relative to the mounting frame is set to be coaxial with the rotating shaft of the mounting frame, and the rotating shaft of the impeller is coaxial with the mounting frame. Thus, when the fan component switches states, the rotation of the mounting frame and the rotation of the fan component relative to the mounting frame can perform the function of aligning and adjusting different air outlets. At the same time, both fan components mounted on the mounting frame can be kept around the impeller, maintaining a stable radial distance from the impeller, which helps to ensure the reliable and stable operation of the cross-flow fan.

[0013] In some embodiments, the impeller is rotatably mounted on the housing relative to the housing.

[0014] In this embodiment, the impeller is mounted on the mounting bracket. When the fan components switch between the first and second states, only the mounting bracket needs to be driven to rotate. The rotation of the mounting bracket does not need to carry the impeller, resulting in a small load and thus a small power requirement to drive the mounting bracket to rotate. At the same time, the impeller does not need to follow any additional movements, making the impeller's operation more stable and reliable.

[0015] In some embodiments, the fan component further includes an arc-shaped sliding groove provided on the mounting frame and a slider that slides with the sliding groove, and the fan component that is rotatable relative to the mounting frame is fixedly connected to the slider to be mounted on the mounting frame.

[0016] This embodiment uses the combination of an arc-shaped sliding groove and a slider to achieve a rotatable installation of the fan component relative to the mounting frame by fixing the slider to the fan component. The rotation of the fan component relative to the mounting frame can be achieved by the sliding of the slider relative to the sliding groove, resulting in a smoother rotation of the fan component relative to the mounting frame.

[0017] In some embodiments, the two fan components include a shield wall fixedly connected to the mounting bracket and a volute tongue rotatable relative to the mounting bracket.

[0018] In this embodiment, since the volute tongue is typically smaller than the shielding wall, the structure is simplified by allowing the volute tongue to rotate relative to the mounting frame. Simultaneously, the shielding wall is fixed relative to the mounting frame, rather than both the shielding wall and the volute tongue being rotatable relative to the mounting frame. By configuring one fan component with a fixed connection and the other with a relatively movable connection, the angle between the shielding wall and the volute tongue can be adjusted, while also reducing drive control and structural complexity.

[0019] 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 second drive member for driving the extension wall to switch to different positions. In a first state and a second state of the fan component, the mounting bracket is located at a first angular position and a second angular position, respectively. When the mounting bracket is located at the first angular position and the extension wall is located at 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 located at the second angular position and the extension wall is located at the second position... One end of the extension wall overlaps with the other of the volute tongue and the shielding wall 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 second drive component to drive the extension wall to the first position. In a second state, the controller controls the mounting bracket to switch to a second angular position and controls the second drive component to drive the extension wall to the second position. During the switching process of the mounting bracket between the first angular position and the second angular position, the controller controls the second drive component to drive the extension wall to a third position that avoids the rotation of the volute tongue and the shielding wall.

[0020] 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.

[0021] In some embodiments, the device further includes a first limiting portion and a second limiting portion disposed on the housing. The two fan components include a shielding wall fixedly connected to the mounting bracket and a volute tongue rotatable relative to the mounting bracket. The first limiting portion is used to contact the shielding wall to restrict the mounting bracket to the first angular position when the mounting bracket rotates from the second angular position to the first angular position. The second limiting portion is used to contact the shielding wall to restrict the mounting bracket to the second angular position when the mounting bracket rotates from the first angular position to the second angular position.

[0022] In this embodiment, by setting a first limiting part and a second limiting part, the mounting bracket can be accurately limited to a first angular position or a second angular position, thereby realizing a reliable switch between the first state and the second state. At the same time, it also helps the extension wall to overlap accurately in different states, ensuring the improvement of the air intake or exhaust efficiency of the cross-flow fan.

[0023] 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.

[0024] In this embodiment, the water receiving tray and the mounting bracket are integrally molded, which helps to simplify the structure and assembly, and helps to improve the strength and positional accuracy of the structural components.

[0025] 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 housing; in a second state, one end of the extension wall overlaps with the end of the first mounting portion away from the housing, and the two ends 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.

[0026] The arrangement of the first and second mounting parts in this embodiment can better guide the air inlet and outlet of the cross-flow fan, improving the air inlet and outlet efficiency. At the same time, the heat exchanger is located between the first and second mounting parts, which also enables the air inlet and outlet driven by the cross-flow fan to exchange heat with the heat exchanger better, improving the heat exchange efficiency.

[0027] 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.

[0028] In this embodiment, the extension wall is rotated when switching between the first, second, and third positions. During the rotation, the surface of the arc-shaped block is always in contact with the first mounting part, thereby ensuring the guiding effect of the first and second mounting parts 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.

[0029] Based on the air conditioner indoor unit provided by this utility model, by setting a first air outlet and a second air outlet at different positions, and by setting a cross-flow fan and a mounting bracket, the rotation of the mounting bracket drives the overall rotation of the cross-flow fan's shield and volute, so that the air outlet duct of the cross-flow fan faces different air outlets. This enables the switching of the air intake and exhaust functions of the first and second air outlets. Simultaneously, since at least one of the cross-flow fan's shield and volute can rotate relative to the mounting bracket, the angle between the shield and volute can be adjusted when the mounting bracket rotates to face the cross-flow fan's exhaust duct towards different air outlets. This allows for better alignment and matching with different air outlets, ensuring good air intake and exhaust performance for the air conditioner indoor unit when switching between different air outlets. Furthermore, it improves the versatility of the air conditioner indoor unit's fan components, expanding the design scope of the air conditioner indoor unit.

[0030] 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

[0031] 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:

[0032] Figure 1 This is a cross-sectional view of the indoor unit of the air conditioner in the first state according to an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 An enlarged structural diagram of a portion of the indoor unit of the air conditioner shown;

[0034] Figure 3 This is a cross-sectional view of the indoor unit of an air conditioner in another embodiment of the present invention when the fan component is in the second state;

[0035] Figure 4 for Figure 3 An enlarged structural diagram of a portion of the indoor unit of the air conditioner shown;

[0036] Figure 5 This is a schematic diagram of a portion of the structure of a fan component according to another embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of a portion of the structure of a fan component according to another embodiment of the present invention;

[0038] Figure 7 for Figure 1An enlarged structural diagram of a portion of the indoor unit of the air conditioner shown;

[0039] Figure 8 for Figure 3 The diagram shows an enlarged view of a portion of the indoor unit of an air conditioner. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] like Figures 1 to 4 As shown, the indoor unit of the air conditioner in this embodiment includes a housing 1, an air outlet component, a heat exchanger 5, and a fan component.

[0046] 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 embodiment shown in the figure, the first air vent 21 and the second air vent 22 are respectively located at the lower end and the upper end of the housing 1. The upper end and the lower end are based on the orientation of the indoor air conditioner unit when it is installed indoors and used for normal operation. The descriptions of the upper and lower orientations in this application are all based on the orientation of the indoor air conditioner unit when it is installed indoors and used for normal operation. At this time, the upper end of the indoor air conditioner unit is the end located at the top, and the lower end is the end located at the bottom.

[0047] Heat exchanger 5 is located inside shell 1; refrigerant is introduced into heat exchanger 5 to exchange heat with the air passing through it. When the air conditioner is cooling, heat exchanger 3 acts as the evaporator of the refrigerant; when the air conditioner is heating, heat exchanger 3 acts as the condenser of the refrigerant.

[0048] The fan component is housed within the casing 1. The fan component includes a mounting frame 34 rotatably mounted relative to the casing 1, a first drive member driven by the mounting frame 34, and a cross-flow fan. In the embodiment shown, the mounting frame 34 has a disc-shaped structure and is restricted to rotating only relative to the casing 1, not moving relative to it. When the mounting frame 34 needs to rotate, the first drive member drives it to rotate. The first drive member includes a motor or other drive components. In some embodiments, the first drive member can be directly connected to the mounting frame; in other embodiments, it can be indirectly connected via a gear or other transmission component.

[0049] A cross-flow fan, also known as a cross-flow fan, was proposed by the French engineer Mortier in 1892. Its impeller is a multi-bladed, long cylindrical shape with forward-curving multi-bladed blades. The structure of a cross-flow fan includes the impeller, a shielding wall (also referred to as a volute or duct wall in some existing cross-flow fans), and a volute tongue. The shielding wall partially blocks the outer circumference of the impeller, and the volute tongue separates the inlet and outlet sides of the impeller's outer circumference. This causes the center of the vortex entering the impeller to move 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. The shielding wall and the volute tongue are both important working components of the cross-flow fan.

[0050] like Figures 1 to 6 As shown, the cross-flow fan includes an impeller 31 and two fan components arranged opposite to each other on both sides of the impeller 31 for air outlet. One of the fan components is a baffle wall 33, and the other is a volute tongue 32. The baffle wall 33 and the volute tongue 32 are arranged opposite to each other on both sides of the fan section.

[0051] The fan components are mounted on the mounting frame 34. At least one fan component is rotatable relative to the mounting frame 34; that is, both the shielding wall 33 and the volute tongue 32 are mounted on the mounting frame 34, and at least one of the shielding wall 33 and the volute tongue 32 is rotatable relative to the mounting frame 34. The fan components can be directly mounted on the mounting frame 34 through direct contact, or they can be indirectly mounted on the mounting frame 34 through an intermediate component. In the embodiment shown in the figure, the shielding wall 33 is directly mounted on the mounting frame 34, and the volute tongue 32 is indirectly mounted on the mounting frame 34.

[0052] The fan component has a first state and a second state. In the first state, the outlet of the cross-flow fan duct formed by the baffle wall 33 and the volute tongue 32 faces the first air inlet 21, and the second air inlet 22 is the air inlet. In the second state, the outlet of the cross-flow fan duct formed by the baffle wall 33 and the volute tongue 32 faces the second air inlet 22, and the first air inlet 21 is the air inlet. The fan component is configured to: drive the mounting bracket 34 to rotate relative to the housing 1 via a first drive member and to cause at least one fan component to rotate relative to the mounting bracket 34, thereby switching the fan component between the first state and the second state. In this embodiment, both the shielding wall 33 and the volute tongue 32 are mounted on the mounting bracket. 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. By driving the rotation of the mounting bracket, the air intake and exhaust states of the first air outlet and the second air outlet can be switched. At the same time, when the mounting bracket rotates to switch the air outlet, the fan component that can rotate relative to the mounting bracket can also rotate relative to the mounting bracket to change the included angle between the shielding wall 33 and the volute tongue 32. Thus, when different air outlets are selected as air outlets, the included angle between the shielding wall 33 and the volute tongue 32 can match the air outlet, enabling the fan component to work efficiently.

[0053] During air supply operation, the fan component drives air to enter the housing 1 through one of the first air vents 21 and the second air vent 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 other words, when the indoor unit of the air conditioner is working, air intake and exhaust are achieved through the first air vent 21 and the second air vent 22. After entering the housing through one air vent, the air exchanges heat with the heat exchanger and then flows out through the other air vent. The fan component switches between a first state and a second state, and the air intake and exhaust functions of the first air vent 21 and the second air vent 22 also switch accordingly.

[0054] The indoor unit of this air conditioner, by setting a first air outlet 21 and a second air outlet 22 at different positions, and by setting a cross-flow fan and a mounting bracket 34, allows the air outlet duct of the cross-flow fan to be oriented towards different air outlets by rotating the mounting bracket 34 and driving the overall rotation of the shielding wall 33 and the volute tongue 32 of the cross-flow fan. This enables the switching of the air intake and exhaust functions of the first air outlet 21 and the second air outlet 22. Thus, different air outlets can be flexibly selected as air inlets and outlets according to different cooling and heating states. The structure is simple and compact, and the air outlet switching is convenient and reliable. At the same time, since at least one of the shielding wall 33 and the volute tongue 32 of the cross-flow fan can be rotated relative to the mounting bracket 34, the angle between the shielding wall 33 and the volute tongue 32 can be adjusted when the mounting bracket 34 rotates to oriented the air outlet duct of the cross-flow fan towards different air outlets. This allows for better alignment and matching of different air outlets, so that the indoor unit of the air conditioner can achieve good air intake and exhaust effects when switching between different air outlets. At the same time, it also improves the versatility of the fan components of the air conditioner indoor unit and expands the design range of the air conditioner indoor unit.

[0055] In some embodiments, such as Figures 1 to 6 As shown, the shafts of the fan components rotating relative to the mounting bracket 34, the impeller rotating during operation, and the mounting bracket 34 rotating relative to the housing 1 are all coaxial. In this embodiment, the shaft of the fan component rotatable relative to the mounting bracket 34 is set to be coaxial with the shaft of the mounting bracket 34, and the shaft of the impeller 31 is coaxial with the mounting bracket 34. Therefore, when switching states of the fan components, the rotation of the mounting bracket and the rotation of the fan components relative to the mounting bracket can perform the alignment adjustment function for different air outlets, while both fan components mounted on the mounting bracket can remain around the impeller, maintaining a stable radial distance from the impeller, thus helping to ensure the reliable and stable operation of the cross-flow fan. In some embodiments, the impeller is rotatably mounted on the mounting bracket relative to it, that is, the impeller's shaft is mounted on the mounting bracket.

[0056] In some embodiments, such as Figures 1 to 4 As shown, the impeller 31 is rotatably mounted on the housing 1 relative to the housing 1. In this embodiment, the impeller 31 is mounted on the mounting bracket. When the fan components switch between the first state and the second state, only the mounting bracket needs to be driven to rotate. The rotation of the mounting bracket does not need to carry the impeller, resulting in a small load and thus a small power requirement to drive the rotation of the mounting bracket. At the same time, the impeller does not need to follow any additional movements, and the operation of the impeller is more stable and reliable.

[0057] In some embodiments, such as Figures 1 to 6As shown, the fan component also includes an arc-shaped sliding groove 35 and a slider 36 that slides with the sliding groove on the mounting bracket 34. The fan component, which is rotatable relative to the mounting bracket 34, is fixedly connected to the slider 36 to be mounted on the mounting bracket 34. In the embodiment shown, the axis of the arc-shaped sliding groove 35 is coaxial with the axis of rotation of the mounting bracket relative to the housing. This embodiment achieves rotatable mounting of the fan component relative to the mounting bracket by setting the arc-shaped sliding groove and the slider, and by using the fixed connection between the slider and the fan component. The rotation of the fan component relative to the mounting bracket is achieved by the sliding of the slider relative to the sliding groove 35, resulting in smoother rotation of the fan component relative to the mounting bracket.

[0058] In some embodiments, such as Figures 1 to 6 As shown, the two fan components include a shielding wall 33 fixedly connected to a mounting bracket 34 and a volute tongue 32 rotatable relative to the mounting bracket 34. In this embodiment, the shielding wall 33 is fixedly connected to the mounting bracket, and the volute tongue 32 is rotatably mounted on the mounting bracket through a fixed connection with a slider 36 and a sliding engagement between the slider 36 and a sliding groove 35. In this embodiment, since the structural dimensions of the volute tongue 32 are generally smaller than those of the shielding wall 33, the structure is relatively simpler by allowing the volute tongue 32 to rotatably relative to the mounting bracket. Simultaneously, the shielding wall 33 is fixed relative to the mounting bracket, instead of both the shielding wall and the volute tongue being rotatable relative to the mounting bracket. By setting one fan component to be fixedly connected and the other to be relatively movable, the angle between the shielding wall and the volute tongue can be adjusted, while also reducing drive control and structural complexity.

[0059] In some embodiments, such as Figure 1 , Figure 3 , Figure 7 and Figure 8As 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 and a second drive member for driving the extension wall to switch to different positions. In the first and second states of the fan assembly, the mounting bracket 34 is located at a first angular position and a second angular position, respectively. When the mounting bracket 34 is located at the first angular position and the extension wall is located at the first position, one end of the extension wall 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 34 is located at the second angular position and the extension wall is located at the second position, one end of the extension wall 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 34 to switch to a first angular position and controls the second drive component to drive the extension wall to the first position. In the second state, the controller controls the mounting bracket 34 to switch to a second angular position and controls the second drive component to drive the extension wall to the second position. During the switching process between the first and second angular positions, the controller controls the second drive component to drive the extension wall 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 6 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.

[0060] In some embodiments, 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 two fan components include a shielding wall 33 fixedly connected to the mounting bracket 34 and a volute tongue 32 rotatable relative to the mounting bracket 34. The first limiting part 81 contacts the shielding wall 33 to restrict the mounting bracket 34 to the first angular position when the mounting bracket 34 rotates from the second angular position to the first angular position. The second limiting part 82 contacts the shielding wall 33 to restrict the mounting bracket 34 to the second angular position when the mounting bracket 34 rotates from the first angular position to the second angular position. 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 providing the first limiting part 81 and the second limiting part 82, the mounting bracket can be accurately limited to the first angular position or the second angular position, thereby achieving reliable switching between the first state and the second state. Simultaneously, it also helps to accurately overlap the extension wall in different states, ensuring improved air intake or exhaust efficiency of the cross-flow fan.

[0061] In some embodiments, the indoor unit of the air conditioner further includes a mounting component, which includes a mounting bracket 731 fixedly connected to the housing 1 for mounting the heat exchanger 5 and a drip tray 732 for collecting condensate from the heat exchanger 5. 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 to simplify the structure, simplify assembly, and help improve the strength and positional accuracy of the structural components.

[0062] In some embodiments, the indoor unit of the air conditioner further includes mounting components, which include a first mounting portion 71 and a second mounting portion 72 located on opposite sides of the heat exchanger 5 and used for mounting the heat exchanger 5. One end of the first mounting portion 71 and the second mounting portion 72 are respectively connected to the housing 1. In the embodiment shown in the figure, one end of the first mounting portion 71 and the second mounting portion 72 are respectively connected to the second air outlet 22. In the second state, one end of the extension wall overlaps with the end of the first mounting portion 71 away from the housing 1, and the two components of the volute tongue 32 and the shielding wall 33 that do not overlap with the extension wall 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 second 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.

[0063] In some embodiments, such as Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, an arc-shaped block 62 is provided at the end of the extension wall 6 near the first mounting part 71. The axis of the arc-shaped block 62 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 remains in contact with the first mounting part 71. In this embodiment, 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 part 71, thereby ensuring the guiding effect of the first mounting part and the second mounting part 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.

[0064] In some embodiments, the above-mentioned indoor unit of the air conditioner is a wall-mounted air conditioner. The first air outlet 21 and the second air outlet 22 are located at the lower and upper ends of the wall-mounted air conditioner, respectively. In this embodiment, the wall-mounted air conditioner can heat and cool. The first state and the second state of the indoor unit correspond to the heating state and the cooling 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, when the wall-mounted air conditioner is cooling or heating, by switching between the first state and the second state, the cold air can be output from the upper end during cooling, avoiding direct airflow to people. Moreover, the cold air can sink downwards under the action of gravity, providing a more comprehensive cooling effect and making the cooling more comfortable. During heating, the hot air is output from the lower end. The hot air density is low, allowing it to rise, improving the uniformity of heating and achieving a more comprehensive heating effect.

[0065] 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, include: 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). A heat exchanger (5) is disposed inside the housing (1); A fan component, disposed within the housing (1), includes a mounting bracket (34) rotatably disposed relative to the housing (1), a first drive member drivenly connected to the mounting bracket (34), and a cross-flow fan. The cross-flow fan includes an impeller (31) and two fan components arranged opposite to each other on both sides of the impeller (31) for air outlet from the impeller (31). The two fan components are a baffle wall (33) and a volute (32), respectively. The fan components are mounted on the mounting bracket (34), and at least one fan component is rotatable relative to the mounting bracket (34). The fan component has a first state and a second state. In the first state, 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 outlet (21); in the second state, the outlet of the air duct of the cross-flow fan formed by the shielding wall (33) and the volute tongue (32) faces the second air outlet (22). The fan component is configured to: drive the mounting bracket (34) to rotate relative to the housing (1) by the first drive member and cause the at least one fan component to rotate relative to the mounting bracket (34) so ​​that the fan component switches between the first state and the second state. During the air supply operation, the fan component drives 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 (5) during its flow within the housing (1).

2. The air conditioner indoor unit as described in claim 1, characterized in that, The shafts of the fan components that rotate relative to the mounting bracket (34), the shafts of the impeller (31), and the shafts of the mounting bracket (34) that rotate relative to the housing (1) are all coaxial.

3. The air conditioner indoor unit as described in claim 2, characterized in that, The impeller (31) is rotatably mounted on the housing (1) relative to the housing (1).

4. The air conditioner indoor unit as described in claim 1, characterized in that, The fan component also includes an arc-shaped sliding groove (35) provided on the mounting frame (34) and a slider (36) that slides with the sliding groove (35). The fan component that is rotatable relative to the mounting frame (34) is fixedly connected to the slider (36) to be mounted on the mounting frame (34).

5. The air conditioner indoor unit as described in claim 1, characterized in that, The two fan components include a shield wall (33) fixedly connected to the mounting bracket (34) and a volute tongue (32) rotatable relative to the mounting bracket (34).

6. The air conditioner indoor unit as described in claim 1, 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 second drive for driving the extension wall to switch to different positions. In the first and second states of the fan component, the mounting bracket (34) is located at a first angular position and a second angular position, respectively. When the mounting bracket (34) is located at the first angular position and the extension wall is located at 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 inlet (22) formed by the overlapped object. When the mounting bracket (34) is located at the second angular position and the extension wall is located at the second position, the extension wall... One end overlaps with the other of the volute tongue (32) and the shielding wall (33) to extend the length of the wall of the air inlet duct facing the second air outlet (22) formed by the overlapping objects. In a first state, the controller controls the mounting bracket (34) to switch to a first angle position and controls the second drive to drive the extension wall to the first position. In a second state, the controller controls the mounting bracket (34) to switch to a second angle position and controls the second drive to drive the extension wall to the second position. During the switching of the mounting bracket (34) between the first angle position and the second angle position, the controller controls the second drive 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 (81) and a second limiting part (82) disposed on the housing (1). The two fan components include a shielding wall (33) fixedly connected to the mounting bracket (34) and a volute tongue (32) rotatable relative to the mounting bracket (34). The first limiting part (81) is used to contact the shielding wall (33) to restrict the mounting bracket (34) to the first angle position when the mounting bracket (34) rotates from the second angle position to the first angle position. The second limiting part (82) is used to contact the shielding wall (33) to restrict the mounting bracket (34) to the second angle position when the mounting bracket (34) rotates from the first angle position to the second angle 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 (5) and a water receiving tray for receiving the condensate of the heat exchanger (5) and is 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 (5) and used for mounting the heat exchanger (5). One end of the first mounting part and the second mounting part are respectively connected to the housing (1). In the second state, one end of the extension wall overlaps with the end of the first mounting part away from the housing (1), and the two parts 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). 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 (62) is provided at the end of the extension wall near the first mounting part. The axis of the arc-shaped block (62) is the axis of rotation of the extension wall relative to the housing (1). When the extension wall is in the first position and in the second position, the surface of the arc-shaped block (62) is in contact with the first mounting part.

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