Indoor unit of a wall-mounted air conditioner

Abstract

The application provides an indoor unit of a wall-mounted air conditioner, comprising a casing, a heat exchange fan, a flow dividing plate, a volute and a spoiler, the casing is provided with an air inlet, a first air outlet and a second air outlet, the volute has a heat exchange air duct, the heat exchange fan is arranged in the heat exchange air duct, the flow dividing plate enables the air blown from the heat exchange air duct to flow upwards and downwards, the volute body has a volute guide arc surface, the volute guide arc surface and the horizontal direction have a first included angle, the volute tongue has a volute tongue side surface and a volute tongue arc surface, the volute tongue arc surface and the horizontal direction have a second included angle, the spoiler is arranged in the casing and located between the volute guide arc surface and the volute tongue arc surface, the spoiler can be rotated to different spoiler positions, so that at least one of the first air duct and the second air duct is communicated with the heat exchange air duct, and air is sent to two different directions through the first air outlet or the second air outlet, thereby avoiding the air flow directly blowing to the user and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and more particularly to an indoor unit of a wall-mounted air conditioner. Background Technology

[0002] An air conditioner is a device that regulates the temperature, humidity, airflow, or cleanliness of the air in an indoor environment. It includes wall-mounted air conditioners, cabinet air conditioners, and built-in air conditioners.

[0003] In a wall-mounted air conditioner, the indoor unit is placed in the indoor environment and exchanges heat with it. It typically includes a casing, an air outlet on the casing, and an air guide plate on the casing. The air guide plate is located near the air outlet and can rotate relative to the casing to adjust the direction of the airflow.

[0004] However, when the air deflector adjusts the air outlet's direction, the airflow may blow directly at the user as it sweeps through the indoor space, reducing user comfort and resulting in a poor user experience. Utility Model Content

[0005] This application discloses an indoor unit for a wall-mounted air conditioner that can improve the user experience.

[0006] To achieve the above objectives, this application discloses an indoor unit of a wall-mounted air conditioner, comprising: a casing, a volute, a heat exchange fan, and a baffle. The casing has an air inlet, a first air outlet, and a second air outlet. The first air outlet is located at the top front side of the casing, and at least a portion of the second air outlet is located at the bottom of the casing. Thus, the first and second air outlets face different directions.

[0007] The volute is located inside the casing and includes a volute body and a volute tongue spaced apart from each other. The volute body and the volute tongue together form a heat exchange air duct located inside the volute. A heat exchange fan is located inside the heat exchange air duct, with its inlet side connected to the air inlet and its outlet side connected to the outlet end of the heat exchange air duct. The heat exchange fan drives airflow through its rotation, drawing air from the indoor environment into the heat exchange air duct through the air inlet and driving the airflow to be blown out from the outlet end of the heat exchange air duct.

[0008] The air distribution plate, located on the front side of the volute, allows air blown from the heat exchange duct onto the air distribution plate to flow upwards and downwards.

[0009] The volute and the diverter plate form a first air duct and a second air duct located below the first air duct, respectively. The first air duct connects the air outlet end of the heat exchange air duct and the first air outlet, and the second air duct connects the air outlet end of the heat exchange air duct and the second air outlet.

[0010] The volute includes a volute body and a volute tongue. The volute body has a volute guide arc surface facing the heat exchange air duct. The volute guide arc surface extends downward relative to the horizontal direction and has a first included angle with the horizontal direction.

[0011] The volute body and the volute tongue are spaced apart and together form a heat exchange air duct. The volute tongue has a volute tongue side and a volute tongue arc surface that are arranged opposite to each other. The volute tongue side faces the heat exchange air duct, and the volute tongue arc surface extends to the top of the splitter plate. The volute tongue arc surface is inclined upward relative to the horizontal direction and has a second included angle with the horizontal direction.

[0012] The turbulence-disrupting element is disposed inside the housing, and at least a portion of the structure of the turbulence-disrupting element is located between the guide arc surface of the volute and the volute tongue arc surface. The turbulence-disrupting element can be rotated relative to the housing to different turbulence-disrupting positions so that at least one of the first air duct and the second air duct is connected to the heat exchange air duct.

[0013] With the above configuration, the indoor unit of the wall-mounted air conditioner of this application can deliver air in two different directions through the first air outlet or the second air outlet, and the air delivery direction can be changed by the rotation of the baffle. During the rotation of the baffle, the air delivery direction of the indoor unit of the wall-mounted air conditioner directly switches between two different directions, avoiding the airflow from the air conditioner sweeping across the indoor environment, thereby preventing the airflow from blowing directly onto the user and improving the user experience.

[0014] Furthermore, the indoor unit of the wall-mounted air conditioner of this application can simultaneously deliver air in different directions through the first and second air outlets. Compared to delivering air through a single outlet, delivering air simultaneously through two outlets transforms the airflow from a unidirectional circulating airflow into a multidirectional diffused airflow, thereby altering the airflow organization of the indoor environment and facilitating airflow coverage. Simultaneously, it allows the airflow to fully mix with the air in the indoor environment, improving the heat exchange efficiency between the airflow and the indoor environment, reducing the time required for heat exchange, and thus lowering energy consumption.

[0015] Furthermore, compared to supplying air through a single air outlet, simultaneously supplying air through both the first and second air outlets divides the airflow into two parts with similar air volumes, which are then blown out from the first and second air outlets respectively, increasing the cross-sectional area of ​​the airflow. This reduces the individual air volume supplied through the first and second air outlets, thereby lowering the airflow velocity and resulting in a gentler airflow. This reduces user discomfort when the airflow is directed at the user, improving the user experience.

[0016] Optionally, the volute also includes a first air guide structure, which is connected to the volute tongue arc surface and extends toward the first air outlet. The first air guide structure has an air guide arc surface at one end near the first air outlet. The air guide arc surface extends upward relative to the horizontal direction and is used to guide the air in the first air duct to be blown out from the first air outlet. The volute also includes a second air guide structure, which is connected to the volute guide arc surface and extends downward in the vertical direction toward the second air outlet.

[0017] With the above configuration, the first air guide structure can guide the airflow in the first air duct to be blown out from the first air outlet, and the second air guide structure can guide the airflow in the second air duct to be blown out from the second air outlet.

[0018] Optionally, the circumferential tangent at the end of the heat exchange fan tongue and the tangent at the outlet end of the heat exchange duct and the volute body form a diffuser outlet angle, with the diffuser outlet angle ranging from 15° to 50°. This arrangement helps ensure the diffusion efficiency and flow stability of the airflow blown out by the heat exchange fan.

[0019] Optionally, the indoor unit of the wall-mounted air conditioner further includes: a first air guide plate, which is correspondingly disposed at the first air outlet and is used to open or close the first air outlet. The first air guide plate is configured to open the first air outlet when the first air duct and the heat exchange air duct are in a connected state; and a second air guide plate, which is correspondingly disposed at the second air outlet and is used to open or close the second air outlet. The second air guide plate is configured to open the second air outlet when the second air duct and the heat exchange air duct are in a connected state.

[0020] With the above settings, the first and second air guide plates can cooperate with the baffle to switch the air supply mode of the indoor unit of the wall-mounted air conditioner.

[0021] Optionally, when the turbulence member rotates around its own rotation axis, the turbulence member has a first turbulence position. When the turbulence member is in the first turbulence position, the turbulence member is configured to face the air outlet of the heat exchange air duct and form the inner wall of the junction of the first air duct and the second air duct. The first air guide plate opens the first air outlet, and the second air guide plate opens the second air outlet.

[0022] With the above setup, the indoor unit of the wall-mounted air conditioner delivers air simultaneously through the first air outlet and the second air outlet.

[0023] Optionally, when the turbulence member rotates around its own rotation axis, the turbulence member has a second turbulence position. When the turbulence member is in the second turbulence position, the turbulence member is configured to block the first air duct and form part of the inner wall of the second air duct, so that the air outlet of the heat exchange air duct is connected to the second air duct, and the first air guide plate closes the first air outlet and the second air guide plate opens the second air outlet.

[0024] With the above setup, the indoor unit of the wall-mounted air conditioner delivers air through the second air outlet.

[0025] Optionally, when the turbulence member rotates around its own rotation axis, the turbulence member has a third turbulence position. When the turbulence member is in the third turbulence position, the turbulence member is configured to block the second air duct and form part of the inner wall of the first air duct, so that the air outlet of the heat exchange air duct is connected to the first air duct, and the first air guide plate opens the first air outlet and the second air guide plate closes the second air outlet.

[0026] With the above setup, the indoor unit of the wall-mounted air conditioner delivers air through the first air outlet.

[0027] Optionally, during the rotation of the spoiler relative to the housing, the volute tongue is located outside the rotation trajectory of the spoiler, and the spoiler passes through the first spoiler position, the second spoiler position and the third spoiler position in sequence, or the spoiler passes through the third spoiler position, the second spoiler position and the first spoiler position in sequence. When the spoiler is located at the second spoiler position, the gap width between the spoiler and the volute tongue is between 5mm and 8mm.

[0028] With the above settings, interference between the spoiler and the volute can be avoided during rotation, while air leakage between the spoiler and the volute can be reduced or even avoided, and abnormal noise can be avoided when the airflow passes through the spoiler.

[0029] Optionally, when the spoiler is located at the third spoiler position, the spoiler and the volute body are in contact with each other. This arrangement can reduce or even eliminate air leakage between the spoiler and the volute body.

[0030] Optionally, the angle through which the spoiler rotates from the first spoiler position to the second spoiler position is within the range of 70° to 90°. This configuration ensures the spoiler's guiding effect on the airflow.

[0031] Optionally, the angle through which the spoiler rotates from the second spoiler position to the third spoiler position is within the range of 110° to 150°. This configuration ensures the spoiler's guiding effect on the airflow.

[0032] Optionally, when the spoiler is located at the second spoiler position, the minimum gap dα between the spoiler and the volute body and the minimum width d1 of the second air duct satisfy: 1.2d1>dα>0.8d1.

[0033] By making the minimum gap dα between the spoiler and the volute body close to the minimum width d1 of the second air duct, the loss of airflow volume can be reduced.

[0034] Optionally, when the spoiler is located at the third spoiler position, the minimum gap dβ between the spoiler and the volute tongue and the minimum width d2 of the first air duct satisfy: 1.2d2>dβ>d2.

[0035] By setting it up as described above, the minimum gap dβ between the spoiler and the volute tongue is made close to the minimum width d2 of the first air duct, which can reduce the loss of airflow volume. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of the indoor unit of a wall-mounted air conditioner provided in an embodiment of this application;

[0038] Figure 2 A cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 1. Figure 1 ;

[0039] Figure 3 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 1. Figure 2 ;

[0040] Figure 4 This is a schematic diagram of gas flow inside the indoor unit of the wall-mounted air conditioner in Example 1;

[0041] Figure 5 A cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 1. Figure 3 ;

[0042] Figure 6 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 2. Figure 1 ;

[0043] Figure 7 This is a schematic diagram of the gas flow inside the indoor unit of the wall-mounted air conditioner in Example 2;

[0044] Figure 8 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 2. Figure 2 ;

[0045] Figure 9 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 2. Figure 3 ;

[0046] Figure 10 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 3. Figure 1 ;

[0047] Figure 11 This is a schematic diagram of the gas flow inside the indoor unit of the wall-mounted air conditioner in Example 3;

[0048] Figure 12 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 3. Figure 2 ;

[0049] Figure 13 This is a cross-sectional view of the indoor unit of the wall-mounted air conditioner in Example 3. Figure 3 .

[0050] Explanation of key figure labels:

[0051] 10. Indoor unit of a wall-mounted air conditioner;

[0052] 100 - Housing; 110 - Air Inlet; 120 - First Air Outlet; 130 - Second Air Outlet; 140 - Top Plate; 150 - Bottom Plate; 160 - Back Plate; 200 - Volute; 210 - Volute Body; 211 - Volute Air Duct Curved Surface; 212 - Volute Guide Curved Surface; 213 - First End of Volute Guide Curved Surface; 214 - Second End of Volute Guide Curved Surface; 220 - Volute Tongue; 221 - Volute Tongue Curved Surface; 222 - First End of Volute Tongue Curved Surface 223 - Second end of the volute tongue arc surface; 224 - Side of the volute tongue; 230 - Heat exchange air duct; 240 - Flaring area; 250 - First air guide structure; 251 - Air guide arc surface; 260 - Second air guide structure; 300 - Heat exchange fan; 400 - Baffle; 410 - Rotating shaft; 510 - First air duct; 520 - Second air duct; 610 - First air guide plate; 620 - Second air guide plate; 700 - Diverter plate; 710 - Collection slot;

[0053] W1 - First turbulence position; W2 - Second turbulence position; W3 - Third turbulence position. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0056] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0057] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0058] Furthermore, the terms "upper" and "lower," etc., are primarily used to distinguish different devices, components, or parts whose specific types and structures may be the same or different, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "multiple" means two or more.

[0059] As mentioned in the background section, an air conditioner is a device that regulates indicators such as air temperature, humidity, airflow rate, or cleanliness in an indoor environment, including wall-mounted, floor-standing, or built-in air conditioners. Wall-mounted air conditioners, with their indoor units positioned within the indoor environment and exchanging heat with it, typically include a casing, an air outlet on the casing, and an air guide vane on the casing. The air guide vane is located near the air outlet and can rotate relative to the casing to adjust the direction of the airflow. However, when the air guide vane adjusts the airflow direction, the airflow from the outlet may blow directly onto the user as it sweeps through the indoor space, reducing user comfort and resulting in a poor user experience.

[0060] To address the aforementioned issues, this application provides an indoor unit for a wall-mounted air conditioner, which solves the problem in related technologies where, when the air outlet of a wall-mounted air conditioner is adjusted to change the airflow direction, the airflow from the outlet may blow directly onto the user as it sweeps through the indoor space, resulting in reduced user comfort and a poor user experience.

[0061] Please refer to Figure 1 and Figure 2 The indoor unit 10 of the wall-mounted air conditioner of this application can be installed in an indoor environment. It includes: a casing 100, a volute 200, a heat exchange fan 300, and a baffle 400. The casing 100 is provided with an air inlet 110, a first air outlet 120, and a second air outlet 130. The first air outlet 120 is located at the top front side of the casing 100, and some or all of the second air outlet 130 is located at the bottom of the casing 100. Thus, the first air outlet 120 and the second air outlet 130 face different directions.

[0062] A volute 200 is disposed within the housing 100 and includes a volute body 210 and a volute tongue 220 spaced apart from each other. The volute body 210 and the volute tongue 220 together form a heat exchange air duct 230 located inside the volute 200. A heat exchange fan 300 is disposed within the heat exchange air duct 230. The air inlet side of the heat exchange fan 300 is connected to the air inlet 110, and the air outlet side of the heat exchange fan 300 is connected to the air outlet of the heat exchange air duct 230. The heat exchange fan 300 drives airflow by its own rotation, drawing air from the indoor environment into the heat exchange air duct 230 through the air inlet 110 and driving the airflow to be blown out from the air outlet of the heat exchange air duct 230.

[0063] The flow divider 700, located on the front side of the volute 200, allows air blown from the heat exchange duct 230 onto the flow divider 700 to flow upwards and downwards.

[0064] The volute 200 and the diverter plate 700 respectively form a first air duct 510 and a second air duct 520 located below the first air duct. The first air duct 510 is connected between the air outlet end of the heat exchange air duct 230 and the first air outlet 120, and the second air duct 520 is connected between the air outlet end of the heat exchange air duct 230 and the second air outlet 130.

[0065] The volute body 210 has a volute guide arc surface 212 facing the heat exchange duct 230. The volute guide arc surface 212 extends downward relative to the horizontal direction and has a first angle with the horizontal direction.

[0066] The volute body 210 and the volute tongue 220 together form a heat exchange duct 230. The volute tongue 220 has a volute tongue side surface 224 and a volute tongue arc surface 221 that are arranged opposite to each other. The volute tongue side surface 224 faces the heat exchange duct 230, and the volute tongue arc surface 221 extends to the top of the flow divider plate 700. The volute tongue arc surface 221 is inclined upward relative to the horizontal direction and has a second included angle with the horizontal direction.

[0067] The baffle 400 is disposed within the housing 100, and at least a portion of the structure of the baffle 400 is located between the volute guide arc surface 212 and the volute tongue arc surface 221. The baffle 400 can rotate relative to the housing 100 to different baffle positions so that at least one of the first air duct 510 and the second air duct 520 is connected to the heat exchange air duct 230.

[0068] For example, the baffle 400 can connect the first air duct 510 and the heat exchange air duct 230. As a result, the airflow in the heat exchange air duct 230 flows through the first air duct 510 and is blown out from the first air outlet 120, and the indoor unit 10 of the wall-mounted air conditioner delivers air through the first air outlet 120.

[0069] Alternatively, the baffle 400 can connect the second air duct 520 and the heat exchange air duct 230. Thus, the airflow in the heat exchange air duct 230 flows through the second air duct 520 and is blown out from the second air outlet 130, and the indoor unit 10 of the wall-mounted air conditioner delivers air through the second air outlet 130.

[0070] Alternatively, the baffle 400 can connect both the first air duct 510 and the second air duct 520 to the heat exchange air duct 230. Thus, the airflow within the heat exchange air duct 230 flows through the first air duct 510 and the second air duct 520 respectively, and is simultaneously blown out from the first air outlet 120 and the second air outlet 130. The indoor unit 10 of the wall-mounted air conditioner delivers air through both the first air outlet 120 and the second air outlet 130.

[0071] With the above configuration, the indoor unit 10 of the wall-mounted air conditioner of this application can deliver air in two different directions through the first air outlet 120 or the second air outlet 130, and the air delivery direction can be changed by the rotation of the baffle 400. During the rotation of the baffle 400, the air delivery direction of the indoor unit 10 of the wall-mounted air conditioner directly switches between two different directions, avoiding the airflow from the air conditioner sweeping across the indoor environment, thereby preventing the airflow from blowing directly onto the user and improving the user experience.

[0072] Furthermore, the indoor unit 10 of the wall-mounted air conditioner of this application can simultaneously deliver air in different directions through the first air outlet 120 and the second air outlet 130. Compared to delivering air through a single air outlet, delivering air simultaneously through two air outlets can transform the airflow from a unidirectional circulating airflow to a multidirectional diffused airflow, thereby changing the airflow organization of the indoor environment and facilitating the coverage of the indoor environment by the delivered airflow. At the same time, it allows the delivered airflow to fully mix with the air in the indoor environment, improving the heat exchange efficiency between the delivered airflow and the indoor environment, reducing the time required for heat exchange between the delivered airflow and the indoor environment, and thus reducing energy consumption.

[0073] Furthermore, compared to supplying air through a single air outlet, simultaneously supplying air through two air outlets, the first air outlet 120 and the second air outlet 130, divides the airflow into two parts with similar air volume, which are then blown out from the first air outlet 120 and the second air outlet 130 respectively, increasing the total cross-sectional area of ​​the airflow. This reduces the individual air volume supplied through the first air outlet 120 and the second air outlet 130, thereby lowering the airflow velocity and making the airflow gentler. This reduces user discomfort when the airflow is directed at the user, improving the user experience.

[0074] The components and technical solutions of the indoor unit 10 of the wall-mounted air conditioner of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0075] like Figure 1 and Figure 2 As shown, the casing 100 includes a top plate 140, a bottom plate 150, and a back plate 160. The top plate 140, bottom plate 150, and back plate 160 are interconnected with the diffuser plate 700 and together form the indoor unit 10 of the wall-mounted air conditioner. The top plate 140 and bottom plate 150 are spaced apart along the height of the casing 100, with the top plate 140 located at the top of the casing 100 and the bottom plate 150 located at the bottom of the casing 100 relative to the top plate 140. The diffuser plate 700 and back plate 160 are spaced apart and connected between the top plate 140 and bottom plate 150. The diffuser plate 700 is located on the front side of the casing 100, and the back plate 160 is located on the rear side of the casing 100 relative to the diffuser plate 700.

[0076] The back panel 160 can be fixedly installed on a wall in the indoor environment to mount the indoor unit 10 of the wall-mounted air conditioner in the indoor environment. At this time, the top panel 140 can be close to and face the ceiling in the indoor environment, the bottom panel 150 can face the floor in the indoor environment, and the diffuser 700 faces the interior of the indoor environment.

[0077] The first air outlet 120 is located at the top front side of the housing 100. For example, the first air outlet 120 can be located on the diffuser plate 700, at one end of the diffuser plate 700 near the top plate 140. Accordingly, the first air outlet 120 can deliver air along the thickness direction of the housing 100, and the air delivery direction of the first air outlet 120 can be perpendicular or approximately perpendicular to the height direction of the housing 100.

[0078] At least a portion of the second air outlet 130 is located at the bottom of the housing 100. For example, the second air outlet 130 may be located on the base plate 150, at one end of the base plate 150 near the diffuser plate 700. Accordingly, the second air outlet 130 can deliver air along the height direction of the housing 100, and the air delivery direction of the first air outlet 120 may be parallel or approximately parallel to the height direction of the housing 100. Thus, the first air outlet 120 and the second air outlet 130 can deliver air in two different directions, and the air delivery direction of the first air outlet 120 may be perpendicular or approximately perpendicular to the air delivery direction of the second air outlet 130. In other examples, a portion of the second air outlet 130 may be located on the base plate 150, and another portion of the second air outlet 130 may be located on the diffuser plate 700.

[0079] The volute 200 is installed inside the housing 100, so that the air inlet end of the heat exchange air duct 230 faces the top plate 140 and is connected to the air inlet 110 on the top plate 140.

[0080] The volute 200 also includes a first air guide structure 250 connected to the volute tongue 220. The first air guide structure 250 is located between the volute body 210 and the diverter plate 700, and between the air inlet 110 and the first air outlet 120, and separates the air inlet 110 and the first air outlet 120.

[0081] The first air guide structure 250 is spaced apart from the volute body 210, and part of the heat exchange duct 230 between the air inlet side of the heat exchange fan 300 and the air inlet end of the heat exchange duct 230 is located between the volute body 210 and the first air guide structure 250.

[0082] The volute body 210 has a volute air duct arc surface 211. The shape of the volute air duct arc surface 211 can be a smooth arc or a multi-segment arc. The part of the heat exchange air duct 230 between the air outlet side of the heat exchange fan 300 and the air outlet end of the heat exchange air duct 230 is located between the first arc surface of the volute 200 and the volute tongue 220.

[0083] The volute tongue 220 has a volute tongue arc surface 221 and a volute tongue side surface 224, which are adjacent to each other and form a "V" shape. The volute tongue arc surface 221 is located on the side of the volute tongue 220 closest to the splitter plate 700. The shape of the volute tongue arc surface 221 can be a smooth arc or a polysegmented arc. The first end 222 of the volute tongue arc surface faces the volute body 210, and the second end 223 of the volute tongue arc surface faces the top of the splitter plate 700.

[0084] The volute 200 also has a volute guide arc surface 212, which can be a smooth arc or a polysegmented arc. The first end 213 of the volute guide arc surface is connected to the volute air duct arc surface 211, and the second end 214 of the volute guide arc surface faces the base plate 150. The curvature centers of the volute guide arc surface 212 and the volute air duct arc surface 211 are located on both sides of the volute body 210, respectively. It can also be understood that the interconnected volute air duct arc surface 211 and volute guide arc surface 212 are arranged in an "S" shape.

[0085] The outlet end of the heat exchange duct 230 can be located between the first end 222 of the volute tongue arc surface and the first end 213 of the volute guide arc surface, and the flared region 240 can be located between the volute tongue arc surface 221 and the volute guide arc surface 212. The first end of the flared region 240 is connected to the outlet end of the heat exchange duct 230 and is located between the first end 222 of the volute tongue arc surface and the first end 213 of the volute guide arc surface. The second end of the flared region 240 is located between the second end 223 of the volute tongue arc surface and the second end 214 of the volute guide arc surface, and faces the distributor plate 700.

[0086] Along the direction from the first end of the flared region 240 to the second end of the flared region 240, the guide arc surface 212 of the volute gradually moves away from the volute tongue 220, and the volute tongue arc surface 221 gradually moves away from the volute body 210. Correspondingly, the cross-sectional dimensions of the flared region 240 gradually increase from the first end of the flared region 240 to the second end of the flared region 240.

[0087] In one embodiment, please refer to Figure 3 Dashed line a represents the circumferential tangent of the heat exchange fan at the end of the volute tongue, i.e., a straight line tangent to both the heat exchange fan 300 and the volute tongue 220. Dashed line b represents the tangent between the outlet end of the heat exchange duct and the volute body, i.e., a straight line passing through the connection point of the volute duct arc surface 211 and the volute guide arc surface 212, and tangent to the volute guide arc surface 212. Dashed lines a and b form a diffuser outlet angle, with the angle ranging from 15° to 50°. This configuration helps ensure the diffusion efficiency and flow stability of the airflow blown out by the heat exchange fan 300.

[0088] The first air guide structure 250 is connected to the second end 223 of the volute tongue arc surface, and together with the volute tongue arc surface 221 and part of the splitter plate 700, forms a first air duct 510. The second end 223 of the volute tongue arc surface is closer to the splitter plate 700 than the first end 222 of the volute tongue arc surface. As a result, along the direction from the bottom plate 150 of the housing 100 to the top plate 140 of the housing 100, the cross-sectional dimension of at least part of the first air duct 510 between the volute tongue arc surface 221 and the splitter plate 700 gradually decreases.

[0089] Please combine Figure 2 and Figure 4 Due to the fluid adhesion effect, the volute tongue arc surface 221 can guide the airflow from the outlet of the heat exchange duct 230 to change its flow direction, causing the airflow to flow along the volute tongue arc surface 221 towards the distributor plate 700, and then, guided by the distributor plate 700, flow along the surface of the distributor plate 700 towards the top of the casing 100. Furthermore, the volute tongue arc surface 221 can reduce boundary layer separation during gas flow, resulting in a better flow guiding effect.

[0090] The first air duct 510 is connected to the second end of the flared area 240 and extends from the second end of the flared area 240 to the top plate 140 to connect the flared area 240 and the first air outlet 120, thereby connecting the heat exchange air duct 230 with the first air outlet 120, so that the airflow blown out in the heat exchange air duct 230 can flow to the first air outlet 120.

[0091] The first air guiding structure 250 has an air guiding arc surface 251, which is located on the side of the first air guiding structure 250 near the top plate 140. One end of the air guiding arc surface 251 faces the bottom plate 150 of the housing 100, and the other end faces the side of the first air outlet 120 near the top plate 140. The center of curvature of the air guiding arc surface 251 is located within the first air duct 510. Thus, the air guiding arc surface 251 can guide the airflow within the first air duct 510 to change its flow direction and cause the airflow within the first air duct 510 to be blown out from the first air outlet 120 along the thickness direction of the housing 100.

[0092] The volute 200 also includes a second air guide structure 260 located between the volute body 210 and the base plate 150. The second air guide structure 260 may be parallel or approximately parallel to the height direction of the housing 100. One end of the second air guide structure 260 is connected to the second end 214 of the volute guide arc surface, and the other end of the second air guide structure 260 faces the base plate 150 and is close to the side of the second air outlet 130 away from the splitter plate 700.

[0093] The second air guiding structure 260 is spaced apart from the diverter plate 700 and, together with the volute guide arc surface 212 and part of the diverter plate 700, forms a second air duct 520. The second end 214 of the volute guide arc surface is closer to the diverter plate 700 than the first end 213 of the volute guide arc surface. As a result, along the direction from the top plate 140 of the housing 100 to the bottom plate 150 of the housing 100, the cross-sectional dimension of at least part of the second air duct 520 between the volute guide arc surface 212 and the diverter plate 700 gradually decreases. The volute guide arc surface 212 can be used to guide the airflow blown from the outlet end of the heat exchange air duct 230 to flow along the volute guide arc surface 212 to the diverter plate 700, and under the guidance of the diverter plate 700, flow along the surface of the diverter plate 700 towards the bottom of the housing 100.

[0094] The second air duct 520 connects to the second end of the flared opening and extends from the second end of the flared area 240 toward the base plate 150, connecting the flared area 240 and the second air outlet 130. This connects the heat exchange air duct 230 and the second air outlet 130, allowing the airflow blown out of the heat exchange air duct 230 to flow to the second air outlet 130. The extension direction of the second air outlet 130 is parallel to the height direction of the casing 100, thus allowing the airflow in the second air duct 520 to be blown out from the second air outlet 130 along the height direction of the casing 100.

[0095] In one embodiment, the projections of the first air duct 510 and the second air duct 520 overlap along the height direction of the casing 100. This arrangement makes the structures of the first air duct 510 and the second air duct 520 more compact, reducing their impact on the size of the indoor unit 10 of the wall-mounted air conditioner, and may even leave the indoor unit 10 of the wall-mounted air conditioner unaffected.

[0096] A heat exchange fan 300 is provided and installed inside the heat exchange duct 230 of the volute 200. The air inlet side of the heat exchange fan 300 faces the air inlet end of the heat exchange duct 230 and is connected to the air inlet end of the heat exchange duct 230. The air outlet side of the heat exchange fan 300 faces the air outlet end of the heat exchange duct 230 and is connected to the air outlet end of the heat exchange duct 230.

[0097] Please combine Figure 2 and Figure 4 The heat exchange fan 300 rotates and generates an eccentric vortex at the air inlet of the heat exchange duct 230, creating a pressure difference within the duct 230 to drive airflow. Thus, the heat exchange fan 300 draws air from the indoor environment into the heat exchange duct 230 through the air inlet 110 and directs the air from the air inlet to the air outlet, forming a supply airflow. The supply airflow exits the heat exchange duct 230, passes through the flared area 240, and then flows into at least one of the first duct 510 or the second duct 520, finally exiting from at least one of the first air outlet 120 or the second air outlet 130.

[0098] In some implementations, a heat exchanger can be provided between the air inlet side of the heat exchange fan 300 and the air inlet end of the heat exchange duct 230. The heat exchanger is used to exchange heat with the air in the heat exchange duct 230 to form a cold air flow or a hot air flow, so that the indoor unit 10 of the wall-mounted air conditioner can realize the cooling or heating function.

[0099] The spoiler 400 can be in the form of a flat plate, although it can also have other shapes in other examples. The spoiler 400 is located between the housing 100 and the volute 200, for example, it can be located between the splitter 700 and the volute 200. When the spoiler 400 rotates about its own rotation axis 410, it has a first spoiler position W1, a second spoiler position W2, and a third spoiler position W3 that are spaced apart from each other, wherein the second spoiler position W2 is located between the first spoiler position W1 and the third spoiler position W3.

[0100] like Figure 5 As shown, during the counterclockwise rotation of the deflector 400 from the first deflection position W1, the deflector 400 sequentially passes through the first deflection position W1, the second deflection position W2, and the third deflection position W3. During the clockwise rotation of the deflector 400 from the third deflection position W3, the deflector 400 sequentially passes through the third deflection position W3, the second deflection position W2, and the first deflection position W1. It should be understood that "clockwise" and "counterclockwise" here only correspond to the perspective shown in the attached diagram. When the perspective of the indoor unit 10 of the wall-mounted air conditioner changes, the rotation direction of the deflector 400 also changes accordingly.

[0101] Please refer to Figure 2 When the baffle 400 is located at the first baffle position W1, the baffle 400 faces the outlet end of the heat exchange duct 230, for example, it can face the second end of the flared region 240, and the baffle 400 can be parallel or approximately parallel to the splitter plate 700. The baffle 400 is spaced apart from the volute 200, and the baffle 400 is closer to the splitter plate 700 than the volute 200. At this time, the baffle 400 forms the inner wall of the junction of the first air duct 510 and the second air duct 520, that is, part of the baffle 400 forms the inner wall of the first air duct 510, and the other part of the baffle 400 forms the inner wall of the second air duct 520.

[0102] With this configuration, the airflow blown out from the heat exchange duct 230 can flow into the first duct 510 and the second duct 520 respectively. Correspondingly, the indoor unit 10 of the wall-mounted air conditioner simultaneously delivers air through the first air outlet 120 and the second air outlet 130.

[0103] In one embodiment, please combine Figure 5 and Figure 6 The diffuser plate 700 is provided with a receiving groove 710. When the deflector 400 is located at the first deflection position W1, at least part of the deflector 400 is located in the receiving groove 710. This can prevent the deflector 400 from affecting the airflow inside the indoor unit 10 of the wall-mounted air conditioner and ensure the air supply effect.

[0104] like Figure 6As shown, when the spoiler 400 is located at the second spoiler position W2, at least a portion of the structure of the spoiler 400 is located within the flared region 240. The spoiler 400 is located between the volute tongue 220 and the diffuser 700, and faces the volute body 210; for example, the spoiler 400 may face the volute guide arc surface 212. The spoiler 400 is spaced apart from the volute body 210, and is closer to the volute tongue 220 and the diffuser 700 than the volute body 210.

[0105] Please combine Figure 6 and Figure 7 Therefore, the baffle 400 can block the first air duct 510 and form part of the inner wall of the second air duct 520, so as to connect the air outlet of the heat exchange air duct 230 with the second air duct 520. The baffle 400 can guide the airflow blown out of the heat exchange air duct 230 to the diverter plate 700 and into the second air duct 520, and make the airflow flow along the diverter plate 700 to the second air outlet 130. Correspondingly, the indoor unit 10 of the wall-mounted air conditioner delivers air through the second air outlet 130.

[0106] In one embodiment, the volute tongue 220 is located outside the rotation trajectory of the spoiler 400. When the spoiler 400 is located at the second spoiler position W2, the gap width between the spoiler 400 and the volute tongue 220 is the smallest, and the gap width between the spoiler 400 and the volute tongue 220 is between 5mm and 8mm.

[0107] With the above settings, interference between the spoiler 400 and the volute tongue 220 can be avoided during rotation, while air leakage between the spoiler 400 and the volute tongue 220 can be reduced or even avoided, and abnormal noise can be avoided when the airflow passes through the spoiler 400.

[0108] In one embodiment, please refer to Figure 8 When the spoiler 400 rotates from the first spoiler position W1 to the second spoiler position W2, the angle α it rotates through satisfies the condition that α is within the range of 70° to 90°. This setting ensures the guiding effect of the spoiler 400 on the airflow.

[0109] In one embodiment, please refer to Figure 9 When the spoiler 400 is located at the second spoiler position W2, the minimum gap dα between the spoiler 400 and the volute body 210 and the minimum width d1 of the second air duct 520 satisfy: 1.2d1>dα>0.8d1.

[0110] By making the minimum gap dα between the spoiler 400 and the volute body 210 close to the minimum width d1 of the second air duct 520 through the above settings, the loss of airflow volume can be reduced.

[0111] Please refer to Figure 10 and Figure 11 When the spoiler 400 is located at the third spoiler position W3, at least a portion of the structure of the spoiler 400 is located within the flared region 240. The spoiler 400 is located between the volute body 210 and the diffuser 700, and faces the volute tongue 220. The spoiler 400 is spaced apart from the volute tongue 220, and is closer to the volute body 210 and the diffuser 700 than the volute tongue 220.

[0112] As such, the baffle 400 can block the second air duct 520 and form part of the inner wall of the first air duct 510, so as to connect the air outlet of the heat exchange air duct 230 with the first air duct 510. The baffle 400 can guide the airflow blown out of the heat exchange air duct 230 to the diverter plate 700 and into the first air duct 510, and make the airflow flow along the diverter plate 700 to the first air outlet 120. Correspondingly, the indoor unit 10 of the wall-mounted air conditioner delivers air through the first air outlet 120.

[0113] In one embodiment, when the spoiler 400 is located at the third spoiler position W3, the spoiler 400 and the volute body 210 are in contact with each other. This arrangement can reduce or even eliminate air leakage between the spoiler 400 and the volute body 210.

[0114] In one embodiment, please refer to Figure 12 From the first turbulence position W1 to the third turbulence position W3, the angle β through which the turbulence element 400 rotates is within the range of 110° to 150°. This configuration ensures the guiding effect of the turbulence element 400 on the airflow.

[0115] In one embodiment, please refer to Figure 13 When the spoiler 400 is located at the third spoiler position W3, the minimum gap dβ formed by the spoiler 400 and the volute tongue 220 and the minimum width d2 of the first air duct 510 satisfy the following condition: 1.2d2>dβ>d2. By setting the size of the minimum gap dβ formed by the spoiler 400 and the volute tongue 220 close to the minimum width d2 of the first air duct 510, the loss of airflow volume can be reduced.

[0116] Please refer to the above again. Figure 1 and Figure 2 The indoor unit 10 of the wall-mounted air conditioner also includes a first air guide plate 610 rotatably connected to the casing 100. For example, the first air guide plate 610 can be rotatably connected to the ceiling plate 140. The first air guide plate 610 is correspondingly disposed at the first air outlet 120 and can rotate relative to the casing 100 to open or close the first air outlet 120. For example, when the first air duct 510 and the heat exchange air duct 230 are connected to each other, the first air guide plate 610 opens the first air outlet 120; when the baffle 400 blocks the first air duct 510, the first air guide plate 610 closes the first air outlet 120.

[0117] The indoor unit 10 of the wall-mounted air conditioner also includes a second air guide plate 620 rotatably connected to the casing 100. For example, the second air guide plate 620 can be rotatably connected to the base plate 150. The second air guide plate 620 is correspondingly disposed at the second air outlet 130 and can rotate relative to the casing 100 to open or close the second air outlet 130. For example, when the second air duct 520 and the heat exchange air duct 230 are connected to each other, the second air guide plate 620 opens the second air outlet 130; when the baffle 400 blocks the second air duct 520, the second air guide plate 620 closes the second air outlet 130.

[0118] For example, such as Figure 2 As shown, when the spoiler 400 is located at the first spoiler position W1, the first air guide plate 610 opens the first air outlet 120, and the second air guide plate 620 opens the second air outlet 130. The indoor unit 10 of the wall-mounted air conditioner delivers air simultaneously through the first air outlet 120 and the second air outlet 130.

[0119] like Figure 6 As shown, when the spoiler 400 is located at the second spoiler position W2, the first air guide plate 610 closes the first air outlet 120, and the second air guide plate 620 opens the second air outlet 130, so that the indoor unit 10 of the wall-mounted air conditioner delivers air through the second air outlet 130.

[0120] like Figure 13 As shown, when the spoiler 400 is located at the third spoiler position W3, the first air guide plate 610 opens the first air outlet 120, the second air guide plate 620 closes the second air outlet 130, and the indoor unit 10 of the wall-mounted air conditioner delivers air through the first air outlet 120.

[0121] With the above settings, the first air guide plate 610 and the second air guide plate 620 can cooperate with the baffle 400 to switch the air supply mode of the indoor unit 10 of the wall-mounted air conditioner.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the air conditioner of this application, and are not intended to limit it. Although the air conditioner of this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An indoor unit of a wall-mounted air conditioner, characterized in that, include: The housing has an air inlet, a first air outlet, and a second air outlet. The first air outlet is located at the top of the front side of the housing. At least a portion of the second air outlet is located at the bottom of the housing; A heat exchange fan, wherein the heat exchange fan is used to drive airflow by rotating itself; A volute is disposed inside the housing. The volute has a heat exchange air duct inside. The heat exchange fan is disposed in the heat exchange air duct. The air inlet side of the heat exchange fan is connected to the air inlet. The air outlet end of the heat exchange air duct is connected to the air outlet side of the heat exchange fan. The flow divider, located on the front side of the volute, allows air blown from the heat exchange duct to the flow divider to flow in both upward and downward directions. The volute and the diverter plate respectively form a first air duct and a second air duct located below the first air duct; The first air duct is connected between the air outlet end of the heat exchange air duct and the first air outlet. The second air duct connects the air outlet end of the heat exchange air duct and the second air outlet; The volute includes: The volute body has a volute guide arc surface facing the heat exchange duct, the volute guide arc surface extends downward relative to the horizontal direction and has a first angle with the horizontal direction; the volute tongue is spaced apart from the volute body and the volute tongue together form the heat exchange duct; the volute tongue has a volute tongue side surface and a volute tongue arc surface arranged opposite to each other, the volute tongue side surface faces the heat exchange duct, the volute tongue arc surface faces the flow divider plate, and the volute tongue arc surface is inclined upward relative to the horizontal direction and has a second angle with the horizontal direction; A flow-dispersing element is disposed within the housing, and at least a portion of the structure of the flow-dispersing element is located between the guide arc surface of the volute and the volute tongue arc surface in the height direction of the housing. The flow-dispersing element can be rotated relative to the housing to different flow-dispersing positions so that at least one of the first air duct and the second air duct is connected to the heat exchange air duct.

2. The indoor unit of the wall-mounted air conditioner according to claim 1, characterized in that, The volute also includes a first air guide structure, which is connected to the volute tongue arc surface and extends toward the first air outlet. The first air guide structure has an air guide arc surface at one end near the first air outlet, which extends upward relative to the horizontal direction and is used to guide the air in the first air duct to be blown out from the first air outlet. The volute also includes a second air guide structure, which is connected to the guiding arc surface of the volute and extends downward in the vertical direction toward the second air outlet.

3. The indoor unit of the wall-mounted air conditioner according to claim 2, characterized in that, The heat exchange fan forms a diffuser outlet angle between the circumferential tangent at the end of the volute tongue and the tangent between the air outlet end of the heat exchange duct and the volute body. The diffuser outlet angle is in the range of 15°-50°.

4. The indoor unit of the wall-mounted air conditioner according to any one of claims 1 to 3, characterized in that, The indoor unit of the wall-mounted air conditioner also includes: The first air guide plate is disposed corresponding to the first air outlet and is used to open or close the first air outlet; the first air guide plate is configured to open the first air outlet when the first air duct and the heat exchange air duct are in a connected state. The second air guide plate is disposed correspondingly at the second air outlet and is used to open or close the second air outlet; the second air guide plate is configured to open the second air outlet when the second air duct and the heat exchange air duct are in a connected state.

5. The indoor unit of the wall-mounted air conditioner according to claim 4, characterized in that, When the spoiler rotates about its own rotation axis, the spoiler has a first spoiler position; When the turbulence-disrupting element is located at the first turbulence position, the turbulence-disrupting element is configured to face the air outlet end of the heat exchange air duct and form the inner wall of the connection between the first air duct and the second air duct, and the first air guide plate opens the first air outlet and the second air guide plate opens the second air outlet.

6. The indoor unit of the wall-mounted air conditioner according to claim 5, characterized in that, When the spoiler rotates about its own rotation axis, the spoiler has a second spoiler position; When the deflector is located at the second deflection position, the deflector is configured to block the first air duct and form part of the inner wall of the second air duct, so that the air outlet of the heat exchange air duct is connected to the second air duct; and the first air guide plate closes the first air outlet, and the second air guide plate opens the second air outlet.

7. The indoor unit of the wall-mounted air conditioner according to claim 6, characterized in that, When the spoiler rotates about its own rotation axis, the spoiler has a third spoiler position; When the deflector is located at the third deflection position, the deflector is configured to block the second air duct and form part of the inner wall of the first air duct, so that the air outlet of the heat exchange air duct is connected to the first air duct; and the first air guide plate opens the first air outlet, and the second air guide plate closes the second air outlet.

8. The indoor unit of the wall-mounted air conditioner according to claim 7, characterized in that, During the rotation of the spoiler relative to the housing, the volute tongue is located outside the rotation trajectory of the spoiler; The deflector passes sequentially through the first deflection position, the second deflection position, and the third deflection position; or, the deflector passes sequentially through the third deflection position, the second deflection position, and the first deflection position. Wherein, when the deflector is located at the second deflection position, the gap width between the deflector and the volute tongue is between 5mm and 8mm; and / or, when the deflector is located at the third deflection position, the deflector and the volute body are in contact with each other.

9. The indoor unit of the wall-mounted air conditioner according to claim 7, characterized in that, From the first disturbance position to the second disturbance position, the angle through which the disturbance component rotates is in the range of 70° to 90°; and / or, The angle through which the spoiler rotates from the second spoiler position to the third spoiler position is in the range of 110° to 150°.

10. The indoor unit of the wall-mounted air conditioner according to claim 7, characterized in that, When the baffle is located at the second baffle position, the minimum clearance dα between the baffle and the volute body, and the minimum width d1 of the second air duct, satisfy: 1.2d1 > dα > 0.8d1; and / or, When the turbulence-disrupting element is located at the third turbulence position, the minimum gap dβ between the turbulence-disrupting element and the volute tongue, and the minimum width d2 of the first air duct satisfy the following condition: 1.2d2>dβ>d2.

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