Air conditioner indoor unit capable of discharging air from upper portion

Abstract

The utility model relates to the technical field of air conditioning, in particular to an air conditioner indoor unit capable of discharging air from the upper portion. The indoor unit of the air conditioner comprises a shell, an indoor unit and a heat exchanger, the at least one axial flow fan is arranged in the shell and is used for promoting the airflow in the shell to be blown out through the air outlet; and the air guide plate is rotatably arranged at the air outlet, is positioned at the downstream of the air outlet on the flowing path of the air flow, and is used for closing or opening the air outlet and guiding the flowing direction of the air flow blown out from the air outlet when the air outlet is opened. By arranging the air outlet which is positioned at the upper part of the shell and is opened forwards and the air deflector positioned at the downstream of the air outlet, airflow can be directly blown out forwards, a larger space range is covered, the flowing direction of the air outlet airflow is accurately guided, multi-form axial flow air supply is conveniently realized, the problem of single air supply form is avoided, and the air supply efficiency is improved. The diversified air supply requirements are met, and the heat exchange effect of the air conditioner indoor unit is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an air conditioning indoor unit with top air outlet. Background Technology

[0002] Traditional wall-mounted air conditioners typically use a cross-flow air supply system with the air outlet located at the lower front. This results in problems such as a small air outlet angle, small air supply range, low air velocity, short air supply distance, cold air blowing directly into people, and hot air not reaching the ground. Therefore, some wall-mounted air conditioners on the market now use axial flow fans. These units have an air outlet at the top of the casing, with the axial flow fan positioned upstream of the outlet, and a synchronously pivoting air guide grille installed inside the outlet to optimize the airflow performance.

[0003] However, existing axial-flow wall-mounted air conditioners place the axial fan at the air outlet and the heat exchanger on the air inlet side of the axial fan. This cannot effectively guarantee the air velocity distribution at the heat exchanger inlet, easily leading to uneven airflow distribution and affecting heat exchange efficiency. Furthermore, placing the axial fan directly at the air outlet also results in significant noise levels. Additionally, existing air conditioners only have a top air outlet and a guide tube inside the air outlet, which still suffers from a small air outlet angle and limited airflow range, failing to achieve wide-area diffused airflow or long-distance focused airflow, thus failing to meet the diverse airflow needs of users. Utility Model Content

[0004] In view of the above problems, this utility model proposes an air conditioning indoor unit with multi-form axial flow air supply that overcomes or at least partially solves the above problems.

[0005] One objective of this invention is to provide an indoor air conditioning unit that can achieve multi-angle axial flow air delivery, thereby improving the user experience.

[0006] A further objective of this invention is to improve the air guiding efficiency of the air guide plate.

[0007] Another further objective of this invention is to improve the heat exchange efficiency of the indoor unit of an air conditioner.

[0008] Specifically, this utility model provides an indoor unit for an air conditioner, comprising:

[0009] The casing has a forward-opening air outlet on its upper front side;

[0010] At least one axial flow fan, disposed within the housing, is used to direct airflow within the housing through an outlet; and

[0011] An air guide plate is rotatably mounted at the air outlet and located downstream of the air outlet in the airflow path. It is used to close or open the air outlet and guide the flow direction of the airflow blowing out of the air outlet when the air outlet is open.

[0012] Optionally, the rotation axis of the air guide plate extends horizontally and is located above the air outlet, so that the air guide plate has an upward blowing position for guiding the airflow to flow upward at an angle, a downward blowing position for guiding the airflow to flow downward at an angle, and a closed position for completely closing the air outlet.

[0013] Optionally, the housing includes a rear cover, an air outlet frame, and a front panel arranged sequentially in the front-rear direction. An air inlet is provided on the rear cover. The front panel is inclined from back to front and upward, and the upper edge of the front panel is spaced apart from the front side of the top wall of the air outlet frame and defines the air outlet, so that the airflow in the housing tends to be inclined and blown upward towards the air outlet under the guidance of the front panel.

[0014] Optionally, the front panel is an inclined flat plate, the air guide plate is a horizontally extending strip-shaped flat plate, and the air guide plate is in the same plane as the front panel when it is in the closed position.

[0015] Optionally, the indoor unit of the air conditioner also includes air guide ribs, which are formed by protruding outward at an angle from the side surface of the air guide plate near the air outlet, away from the axis of rotation, in order to change the flow direction of the airflow flowing forward along the air guide plate.

[0016] Optionally, the front panel is an inclined arc-shaped plate with the opening facing backward, and the air guide plate is a horizontally extending strip-shaped arc-shaped plate with the opening facing backward. When the air guide plate is in the closed position, the end away from the axis of rotation abuts against the upper end of the front panel to completely close the air outlet.

[0017] Optionally, the indoor unit of the air conditioner also includes a flow guiding structure, which is located on the upper part of the front panel near the air outlet frame, to guide the airflow that flows obliquely upward along the front panel to the air outlet to flow smoothly forward.

[0018] Optionally, the indoor unit of the air conditioner also includes:

[0019] The heat exchanger is housed inside the casing and located between the axial fan and the air outlet, and is used to exchange heat with the airflow blown out by the axial fan.

[0020] Optionally, the heat exchanger is a vertically arranged flat plate, and the heat exchanger is spaced apart from the front panel to form an air outlet space for the airflow after heat exchange to flow forward and upward.

[0021] Optionally, the central axis of each axial fan extends horizontally and is arranged parallel to the front-rear direction of the casing.

[0022] This utility model's air conditioner indoor unit features a forward-opening air outlet on the upper front side of the casing. An axial flow fan is housed within the casing to direct airflow through the outlet, achieving upward and forward-facing axial airflow. This increases the area covered by the heat exchange airflow within the room. Compared to traditional forward- and downward airflow designs, it improves the adjustability of the airflow angle and the maximum airflow distance, helping the heat exchange airflow reach further areas for more even room coverage. Furthermore, a rotatable air guide plate is positioned at the air outlet, downstream of it in the airflow path. This plate closes or opens the outlet and guides the airflow direction when open, enabling wide-range airflow guidance and precise direction control. This facilitates multi-angle axial airflow, avoiding the problem of a single airflow angle and meeting diverse airflow needs. Ultimately, this improves the heat exchange effect of the indoor unit and enhances the user experience.

[0023] Furthermore, in the indoor unit of the air conditioner of this utility model, the rotation axis of the air guide plate extends horizontally and is set on the upper side of the air outlet, so that the air guide plate has an upward blowing position for guiding the airflow to flow upward at an angle, a downward blowing position for guiding the airflow to flow downward at an angle, and a closed position for completely closing the air outlet. This realizes the effective guidance of the airflow blown out from the air outlet, improves the air guiding efficiency of the air guide plate, realizes multi-angle axial air supply, meets the diverse air supply needs of users, and thus further improves the user experience.

[0024] Furthermore, in the indoor unit of this invention, the housing includes a rear cover, an air outlet frame, and a front panel arranged sequentially in a front-to-back direction. An air inlet is provided on the rear cover. The front panel is inclined from back to front and upward, with its upper edge spaced apart from and defining an air outlet on the front side of the top wall of the air outlet frame. This allows the airflow within the housing to be guided upward and inclined towards the air outlet under the guidance of the front panel. Therefore, the indoor unit of this invention can achieve a rear-inlet, front-outlet airflow configuration. The inclined front panel effectively guides the airflow within the housing, optimizing the airflow path and reducing flow resistance. This guides the airflow to flow orderly and smoothly upward and forward, thereby improving the air delivery efficiency and, consequently, the heat exchange efficiency of the indoor unit.

[0025] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0026] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit in the state where the air guide plate is in the upward blowing position according to an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the structure of an air conditioner indoor unit in the state where the air guide plate is in the downward blowing position according to an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the structure of an air conditioner indoor unit in the closed position according to an embodiment of the present invention;

[0030] Figure 4 This is an exploded view of an indoor air conditioner unit according to an embodiment of this utility model;

[0031] Figure 5 This is a cross-sectional schematic diagram of an indoor air conditioner unit according to an embodiment of the present invention, viewed from a top view.

[0032] Figure 6 This is a schematic diagram of the structure of the axial flow fan and fan housing of an air conditioner indoor unit according to an embodiment of the present invention;

[0033] Figure 7 This is a side cross-sectional view of an indoor air conditioner unit according to an embodiment of the present invention, with the air guide plate in the upward blowing position;

[0034] Figure 8 This is a side cross-sectional view of an indoor air conditioner unit according to an embodiment of the present invention, with the air guide plate in the downward blowing position;

[0035] Figure 9 This is a side cross-sectional view of an indoor air conditioning unit according to an embodiment of the present invention, with the air guide plate in the closed position;

[0036] Figure 10 yes Figure 1 The diagram shows a cross-sectional view of the indoor unit of the air conditioner from a side perspective.

[0037] Figure 11 yes Figure 2 The diagram shows a cross-sectional view of the indoor unit of the air conditioner from a side perspective.

[0038] Figure 12 This is a schematic diagram of the structure of an air conditioner indoor unit in another embodiment of the present invention with the air guide plate in the upward blowing position;

[0039] Figure 13 This is a structural schematic diagram of the indoor unit of an air conditioner in another embodiment of the present invention with the air guide plate in the downward blowing position;

[0040] Figure 14 This is a schematic diagram of the structure of an indoor air conditioner unit in the closed position according to another embodiment of the present invention;

[0041] Figure 15 This is a side cross-sectional view of the indoor unit of an air conditioner in another embodiment of the present invention with the air guide plate in the upward blowing position;

[0042] Figure 16 This is a side cross-sectional view of the indoor unit of an air conditioner in another embodiment of the present invention with the air guide plate in the downward blowing position;

[0043] Figure 17 This is a side cross-sectional view of the indoor unit of an air conditioner in another embodiment of the present invention with the air guide plate in the closed position;

[0044] Figure 18 yes Figure 12 The diagram shows a cross-sectional view of the indoor unit of the air conditioner from a side perspective.

[0045] Figure 19 yes Figure 13 The diagram shows a cross-sectional view of the indoor unit of the air conditioner from a side view. Detailed Implementation

[0046] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0047] like Figures 1-4 As shown, the indoor unit 10 of the air conditioner according to this embodiment generally includes a housing 100. Specifically, a forward-opening air outlet 150 is provided on the upper front side of the housing 100. Thus, the air outlet direction of the indoor unit 10 of the air conditioner according to this invention is forward air outlet.

[0048] like Figures 4 to 19As shown, the indoor unit 10 of the air conditioner in this embodiment of the present invention may further include at least one axial flow fan 200. Specifically, the axial flow fan 200 is disposed inside the housing 100 and is used to cause the airflow inside the housing 100 to be blown out through the air outlet 150. That is to say, the indoor unit 10 of the air conditioner in this embodiment of the present invention has an axial flow fan 200 disposed upstream of the air outlet 150 to cause the airflow inside the housing 100 to flow forward and be blown out through the upper air outlet 150.

[0049] In addition, such as Figures 1-4 and Figures 7 to 19 As shown, the indoor unit 10 of the air conditioner in this embodiment of the present invention may further include an air guide plate 500. Specifically, the air guide plate 500 is rotatably disposed at the air outlet 150 and is located downstream of the air outlet 150 in the airflow path. It is used to close or open the air outlet 150 and guide the flow direction of the airflow blown out from the air outlet 150 when the air outlet 150 is open.

[0050] The indoor unit 10 of this utility model has an air outlet 150 that opens forward on the upper front side of the housing 100, and an axial fan 200 is installed inside the housing 100 to cause the airflow inside the housing 100 to be blown out through the air outlet 150. This achieves axial airflow with upward air outlet and forward air delivery, which increases the space range that the heat exchange airflow can cover in the room. Compared with the traditional forward and downward air outlet scheme, it improves the adjustability of the air delivery angle and the maximum air delivery distance, which helps the heat exchange airflow reach a farther area to cover the room more evenly. In addition, the air guide plate 500 is rotatably set at the air outlet 150 and is located downstream of the air outlet 150 in the airflow path. It is used to close or open the air outlet 150 and guide the flow direction of the airflow blown out of the air outlet 150 when the air outlet 150 is open. This achieves large-scale air guidance and precise guidance of the airflow direction, which facilitates multi-angle axial air supply and avoids the problem of single air supply angle. It meets diverse air supply needs and improves the heat exchange effect of the indoor unit 10 of the air conditioner, thereby improving the user experience.

[0051] In some embodiments, such as Figures 7-11 and Figures 15-19As shown, the rotation axis of the air guide plate 500 is parallel to the left-right direction of the air outlet 150, and the rotation axis of the air guide plate 500 is parallel to its length direction and located on the side adjacent to the air outlet 150 in its width direction. The rotation axis of the air guide plate 500 extends horizontally and is located on the upper side of the air outlet 150, so that the air guide plate 500 has an upward blowing position for guiding the airflow to flow obliquely upward, a downward blowing position for guiding the airflow to flow obliquely downward, and a closed position for completely closing the air outlet 150. That is, the air guide plate 500 can rotate around the upper side of the air outlet 150, and the flow direction of the airflow blown from the air outlet 150 can be changed by adjusting the position of the air guide plate 500.

[0052] Therefore, by placing the air guide plate 500 downstream of the air outlet 150 and extending its rotation axis horizontally above the air outlet 150, the indoor unit 10 of this utility model improves the air guiding range of the air guide plate 500, effectively guides the airflow blown out from the air outlet 150, thereby improving the air guiding efficiency of the air guide plate 500, realizing multi-angle axial air supply, and thus meeting the diverse air supply needs of users, thereby further improving the user experience.

[0053] In some embodiments, such as Figures 1-3 and Figures 12-14 As shown, the housing 100 of the indoor unit 10 of the air conditioner in this embodiment of the present invention is a horizontally extending column. Additionally, as... Figure 1 and Figure 12 As shown, the air outlet 150 is located on the vertical part of the front side of the housing 100 and extends horizontally in the shape of a strip. That is to say, the size of the housing 100 in the left-right direction of the air conditioner indoor unit 10 is larger than the size of the housing 100 in the vertical direction, and the size of the air outlet 150 in the left-right direction of the housing 100 is larger than the size of the air outlet 150 in the vertical direction of the housing 100.

[0054] Therefore, the air conditioner indoor unit 10 of this utility model, by opening a horizontally extending and strip-shaped air outlet 150 on the vertical part of the front side of the horizontally extending housing 100, achieves a shape matching setting between the air outlet 150 and the housing 100, improving the appearance uniformity and aesthetics of the front panel 130. At the same time, the air outlet 150 is located on the vertical part of the front side of the housing 100, realizing central forward air outlet. Compared with the traditional forward and downward air outlet scheme, it improves the adjustability of the air supply angle and the maximum air supply distance, which helps the heat exchange airflow reach a farther area to cover the room more evenly, thereby improving the uniformity of heat exchange airflow distribution in the room, and thus improving the heat exchange uniformity of the air conditioner indoor unit 10.

[0055] In some embodiments, such as Figure 1As shown, the housing 100 includes a rear cover 110, an air outlet frame 120, and a front panel 130 arranged sequentially in the front-to-back direction.

[0056] Specifically, such as Figures 1-4 As shown, the rear cover 110, the air outlet frame 120, and the front panel 130 are sequentially connected and fixed in the front-rear direction of the housing 100. Furthermore, the rear cover 110 has an air inlet 140, and the front panel 130 is inclined from rear to front and upward. The upper edge of the front panel 130 is spaced apart from the front side of the top wall of the air outlet frame 120, defining an air outlet 150, so that the airflow within the housing 100, guided by the front panel 130, tends to be inclined and blown upward towards the air outlet 150. Therefore, the air inlet and outlet direction of the indoor unit 10 of this embodiment is rear air inlet and front air outlet.

[0057] Therefore, the air conditioner indoor unit 10 of this utility model can realize the air intake and exhaust form of rear air intake and front air exhaust, and the inclined front panel 130 can effectively guide the airflow in the housing 100, optimize the airflow path in the housing 100, reduce the flow resistance of the airflow in the housing 100 during the flow process, and realize the orderly and smooth upward and forward flow of the airflow, thereby improving the air supply efficiency of the air conditioner indoor unit 10, and further improving the heat exchange efficiency of the air conditioner indoor unit 10.

[0058] In some embodiments, such as Figure 4 As shown, the air inlet 140 includes a plurality of air inlet holes 141 spaced apart on the outer peripheral side of the rear cover 110, so that airflow can enter the housing 100 from various directions at the rear of the housing 100.

[0059] Specifically, multiple air inlets 140 are evenly spaced on the outer periphery of the rear cover 110 to improve the uniformity of airflow distribution entering the housing 100 and reduce eddies and turbulence inside the housing 100, thereby improving the stability and efficiency of airflow.

[0060] Therefore, the air conditioner indoor unit 10 of this utility model, by opening multiple air inlets 141 on the outer periphery of the rear cover 110, can increase the air intake area and improve air intake efficiency compared with the traditional single air inlet 140 design. At the same time, it effectively disperses the impact force when the airflow enters the housing 100, reduces the generation of noise, and thus improves the user's comfort and user experience.

[0061] In one alternative embodiment, such as Figures 1-4 and Figures 7-11As shown, the front panel 130 is an inclined flat plate, and an air outlet 150 is defined between the vertical part of the front panel 130 and the front side of the top wall of the air outlet frame 120, so that the airflow at the air outlet 150 has a tendency to blow forward and upward.

[0062] Furthermore, in this optional embodiment, such as Figures 1-4 and Figures 7-11 As shown, the air guide plate 500 is a horizontally extending strip-shaped flat plate to facilitate adjustment of the air outlet 150's airflow direction in the vertical direction. Additionally, as... Figure 3 and Figure 9 As shown, the air guide plate 500 is in the closed position and is located in the same plane as the front panel 130. Specifically, when the air guide plate 500 is in the closed position, the end of the air guide plate 500 away from the rotation axis abuts against the upper end of the front panel 130, and the air guide plate 500 is in the same plane as the front panel 130 when it is in the closed position.

[0063] Therefore, in the air conditioner indoor unit 10 of this embodiment, the horizontally extending strip-shaped air guide plate 500 and the horizontally extending columnar shell 100 have a unified design style, ensuring the aesthetic appearance of the air conditioner indoor unit 10. In addition, when the air guide plate 500 is in the closed position, it is located in the same plane as the front panel 130, which improves the uniformity and aesthetics of the front panel 130.

[0064] Furthermore, in the above optional embodiments, such as Figure 10 and Figure 11 As shown, the indoor unit 10 of the air conditioner may also include a guide rib 510. The guide rib 510 is formed by protruding obliquely outward from a position away from the rotation axis on one side surface of the air guide plate 500 adjacent to the air outlet 150, so as to change the flow direction of the airflow flowing forward along the air guide plate 500. Specifically, the guide rib 510 is a horizontally extending strip-shaped plate, and intersects with the end of the air guide plate 500 away from the rotation axis, forming an angle of less than 90°.

[0065] Specifically, such as Figure 10 As shown, when the air guide plate 500 is in the upward blowing position, the surface of the guide rib 510 is set perpendicular to the air outlet. Thus, in the airflow direction, after the airflow is blown out from the air outlet 150, it continues to flow forward and upward along the air guide plate 500, and at the end of the air guide plate 500 away from the rotation axis, it is blown forward along the guide rib 510, so as to achieve a gentle forward blowing airflow pattern of the indoor unit 10 of the air conditioner.

[0066] like Figure 11As shown, when the air guide plate 500 is in the downward blowing position, the surface of the guide rib 510 is set parallel to the air outlet. Thus, in the airflow direction, after the airflow is blown out from the air outlet 150, it continues to flow forward and downward along the air guide plate 500, and blows downward along the guide rib 510 at the end of the air guide plate 500 away from the rotation axis, so as to realize the vertical downward blowing air supply mode of the indoor unit 10 of the air conditioner.

[0067] Therefore, the indoor unit 10 of the air conditioner in this embodiment of the present invention can realize multiple air supply modes such as upward blowing, downward blowing, gentle forward blowing and vertical downward blowing, which further improves the air supply range, thereby improving the heat exchange effect of the indoor unit 10 and thus improving the user experience.

[0068] In another alternative embodiment, such as Figures 12-19 As shown, the front panel 130 is an inclined arc-shaped plate with an opening facing backward, and an air outlet 150 is defined between the vertical part of the front panel 130 and the front side of the top wall of the air outlet frame 120, so that the airflow at the air outlet 150 has a tendency to blow forward and upward.

[0069] Furthermore, in this optional embodiment, such as Figures 12-19 As shown, the air guide plate 500 is a horizontally extending, rearward-facing strip-shaped arc plate to facilitate adjustment of the air outlet 150's vertical airflow direction. Additionally, as... Figure 14 and Figure 17 As shown, when the air guide plate 500 is in the closed position, the end away from the rotation axis abuts against the upper end of the front panel 130 to completely close the air outlet 150. In one specific embodiment, as... Figure 17 As shown, when the air guide plate 500 is in the closed position, the end away from the rotation axis partially overlaps with the upper end of the front panel 130 in the vertical direction and the curvature angle of the arc surface is the same, so as to achieve a tight fit.

[0070] Therefore, in the air conditioner indoor unit 10 of this embodiment, the horizontally extending arc-shaped air guide plate 500 and the horizontally extending arc-shaped front panel 130 have a unified design style, ensuring the aesthetic appearance of the air conditioner indoor unit 10. In addition, when the air guide plate 500 is in the closed position, it at least partially overlaps with the front panel 130, further improving the uniformity and aesthetics of the front panel 130.

[0071] Furthermore, in the above optional embodiments, such as Figure 18 and Figure 19As shown, the indoor unit 10 of the air conditioner also includes a flow guiding structure 131. Specifically, the flow guiding structure 131 is disposed on the upper end of the front panel 130 near the air outlet frame 120, and is used to guide the airflow that flows obliquely upward along the front panel 130 to the air outlet 150 to flow smoothly forward. Specifically, the flow guiding structure 131 is a horizontally extending strip-shaped arc plate with its opening facing forward and downward, and the curvature of the flow guiding structure 131 gradually increases from bottom to top, so as to guide the airflow inside the casing to flow smoothly towards the air outlet 150.

[0072] In some embodiments, such as Figure 7 , Figure 10 , Figure 15 or Figure 18 As shown, when the air guide plate 500 is in the upward blowing position, the air guide plate 500 tilts from back to front and upward. Thus, in the airflow direction, after the airflow is blown out from the air outlet 150, it continues to flow forward and upward, and is tilted upward to achieve the upward blowing air supply mode of the indoor unit 10 of the air conditioner.

[0073] like Figure 8 , Figure 11 , Figure 16 or Figure 19 As shown, when the air guide plate 500 is in the downward blowing position, the air guide plate 500 tilts downward from back to front. Thus, in the airflow direction, after the airflow is blown out from the air outlet 150, it flows forward and downward, and tilts downward to achieve the downward blowing air supply mode of the indoor unit 10 of the air conditioner.

[0074] like Figure 9 or Figure 17 As shown, when the air guide plate 500 is in the closed position, the end of the air guide plate 500 away from the rotation axis abuts against the upper end of the front panel 130. As a result, the air outlet 150 is completely closed, so that the front appearance of the air conditioner indoor unit 10 has continuity, thereby improving the overall aesthetics of the air conditioner indoor unit 10.

[0075] In addition, the air guide plate 500 can also have a forward-blowing position, in which case the air guide plate 500 is horizontally set above the air outlet. Thus, in the direction of airflow, after the airflow is blown out from the air outlet 150, it flows horizontally forward and blows directly forward to achieve the forward-blowing air supply mode of the indoor unit 10 of the air conditioner.

[0076] Therefore, in the air conditioner indoor unit 10 of this utility model embodiment, the air guide plate 500 has a front-blowing position, an upward-blowing position, a downward-blowing position, and a closed position, and can switch between multiple air supply positions, realizing the switching of multiple air supply forms such as forward diffusion, upward blowing, and downward blowing, thereby realizing multi-form axial flow air supply, avoiding the problem of single air supply form, thereby improving the heat exchange effect of the air conditioner indoor unit 10, and thus improving the user experience.

[0077] In some embodiments, such as Figures 4 to 11 and Figures 15-19 As shown, the central axis of each axial fan 200 extends horizontally and is arranged parallel to the front-rear direction of the housing 100. That is to say, the air outlet direction of each axial fan 200 is horizontally forward along the front-rear direction of the housing 100.

[0078] Therefore, in the indoor unit 10 of this utility model, each axial fan 200 blows air forward, realizing that the airflow inside the casing 100 has a tendency to flow forward and blow out from the air outlet 150. Compared with the traditional forward and downward air outlet scheme, it improves the adjustability of the air supply angle and the maximum air supply distance, which helps the heat exchange airflow reach a farther area to cover the room more evenly, thereby improving the uniformity of the heat exchange airflow distribution in the room, and thus improving the heat exchange uniformity of the indoor unit 10.

[0079] In some embodiments, such as Figures 4-6 As shown, the indoor unit 10 of the air conditioner may include a plurality of axial flow fans 200. The plurality of axial flow fans 200 are arranged at intervals in the left-right direction of the housing 100 so that the airflow inside the housing 100 is blown forward by the plurality of axial flow fans 200. Specifically, the central axes of the plurality of axial flow fans 200 are parallel.

[0080] Therefore, multiple axial flow fans 200 arranged at intervals in the left and right directions can operate simultaneously, which improves the uniformity and volume of air supply in the left and right directions of the indoor unit 10 while achieving synchronous forward air supply in the left and right directions, thereby increasing the overall air supply volume and heat exchange effect of the indoor unit 10.

[0081] In one specific embodiment, such as Figure 6 As shown, the rotation direction of each axial fan 200 is opposite to that of the adjacent axial fan 200, so that the airflow blown out by the multiple axial fans 200 can converge in front of the housing 100.

[0082] Therefore, when multiple axial flow fans 200 rotate in opposite directions adjacent to each other, the airflow generated by every two adjacent axial flow fans 200 will interact and overlap within the indoor unit 10 of the air conditioner, enhancing airflow turbulence and mixing, thereby improving the airflow circulation efficiency and uniformity within the indoor unit 10. Furthermore, the counter-rotation of every two adjacent axial flow fans 200 reduces the collision and cancellation of airflows when they meet, lowering the overall noise level of the indoor unit 10 while increasing the air delivery distance of each axial flow fan 200. This facilitates the convergence of airflows from multiple axial flow fans 200 in front of the casing 100, further improving the air delivery effect of the indoor unit 10.

[0083] In some embodiments, such as Figures 4-6As shown, in the indoor unit 10 of this utility model, there are two axial flow fans 200. Specifically, the two axial flow fans 200 are symmetrically arranged in the left-right direction of the housing 100, and the central axes of the two axial flow fans 200 are parallel.

[0084] As a result, the airflow from the two axial fans 200 converges at the front center of the housing 100. In addition, the two axial fans 200 rotate in opposite directions, so that the airflow from multiple axial fans 200 converges at the front of the housing 100, thereby improving the air supply effect of the indoor unit 10.

[0085] In some embodiments, such as Figure 1 , Figure 4 , Figure 5 , Figures 7-12 and Figures 15-19 As shown, the indoor unit 10 of the air conditioner may also include a heat exchanger 300. Specifically, as... Figures 7-11 and Figures 15-19 As shown, the heat exchanger 300 is disposed within the housing 100, located between the axial fan 200 and the air outlet 150, for exchanging heat with the airflow blown out by the axial fan 200. In other words, the heat exchanger 300 is disposed between the axial fan 200 and the air outlet 150. In a specific embodiment, the air outlet frame 120 has an inwardly protruding mounting member 121 for mounting and fixing the heat exchanger 300, so that the heat exchanger 300 is disposed within the air outlet frame 120. Thus, the airflow entering the housing 100 from the air inlet 140 can fully contact the heat exchanger 300 under the action of the axial fan 200 before being blown out through the air outlet 150.

[0086] Therefore, the indoor unit 10 of this utility model, while achieving downward tilted airflow, avoids the problems of insufficient contact between the incoming airflow and the heat exchanger 300, uneven heat exchange, and excessive noise caused by directly placing the axial fan 200 at the air outlet 150. It ensures that the airflow in the indoor unit 10 has fully entered the internal space of the indoor unit 10 before being driven by the axial fan 200 through the heat exchanger 300, thereby increasing the contact time and uniformity between the airflow and the heat exchanger 300, thus improving the heat exchange efficiency of the indoor unit 10 and the heat exchange effect of the indoor unit 10.

[0087] In some embodiments, such as Figure 3 , Figure 4 , Figures 6 to 14 As shown, the heat exchanger 300 is a vertically arranged flat plate, and the heat exchanger 300 is spaced apart from the front panel 130 to form an air outlet space 310 for the airflow after heat exchange to flow forward and upward. That is to say, the heat exchanger 300 can be designed as a straight-vent type and vertically arranged in the housing to save the overall thickness space of the air conditioner indoor unit 10.

[0088] In this embodiment, as Figures 6 to 14 As shown, in the indoor unit 10 of this utility model, the heat exchanger 300 is arranged perpendicularly to the central axis of the axial flow fan 200.

[0089] Therefore, the orientation of the heat exchanger 300 is matched with that of the multiple axial flow fans 200, allowing for a closer fit between the heat exchanger 300 and the multiple axial flow fans 200. This reduces the distance between the airflow from each axial flow fan 200 and the heat exchanger 300, thereby improving the uniformity of airflow in the indoor unit 10 and further enhancing its heat exchange efficiency. Simultaneously, the heat exchanger 300 is vertically positioned within the casing, reducing its space occupation within the indoor unit 10 and further optimizing the spatial layout.

[0090] In some embodiments, such as Figures 4 to 11 and Figures 15-19 As shown, the indoor unit 10 of the air conditioner may also include a fan housing 400. The fan housing 400 is disposed inside the housing 100, located between the axial fan 200 and the heat exchanger 300, and is used to guide the airflow blown by the axial fan 200 toward the heat exchanger 300. That is, the fan housing 400 is fixedly disposed at the air outlet end of the axial fan 200, guiding the airflow blown by the axial fan 200 toward the surface of the heat exchanger 300 near the air outlet 150.

[0091] Therefore, in the air conditioner indoor unit 10 of this embodiment, the fan casing 400 ensures that the airflow blown by the axial fan 200 flows directly and orderly to the heat exchanger 300, reducing airflow turbulence and energy loss. Simultaneously, the directional airflow helps enhance the convective heat transfer coefficient of the heat exchanger 300 surface, thereby improving the overall heat exchange efficiency of the air conditioner indoor unit 10. Furthermore, the airflow within the air conditioner indoor unit 10, guided by the fan casing 400, is more evenly distributed on the surface of the heat exchanger 300, avoiding localized overheating or overcooling.

[0092] In some embodiments, such as Figure 5 As shown, an air outlet cavity 411 can be defined between the fan housing 400 and the heat exchanger 300. In a specific embodiment, there can be multiple air outlet cavities 411, which are arranged separately and correspond one-to-one with multiple axial flow fans 200, so that the airflow blown out by the multiple axial flow fans 200 flows to the heat exchanger 300 respectively.

[0093] Specifically, the fan housing 400 may include a vertically extending and flat baffle 410, a plurality of annular fan mounting portions 420 formed by protruding backward from the vertical upper part of the baffle 410 and spaced apart in the left and right direction, and a strip partition formed between two adjacent fan mounting portions 420 and protruding forward from the front side of the baffle 410.

[0094] In this embodiment, the fan mounting part 420 is used to install and fix the axial flow fan 200 so that the baffle 410 covers the outer periphery of the air outlet end of the axial flow fan 200. Thus, the baffle 410, the partition between two adjacent axial flow fans 200, the heat exchanger 300, and the housing 100 can surround and define a plurality of air outlet chambers 411 corresponding to each axial flow fan 200, so that each axial flow fan 200 corresponds to an independent air outlet chamber 411.

[0095] For example, such as Figure 4 As shown, the indoor unit 10 of the air conditioner may include two axial flow fans 200. Correspondingly, the fan housing 400 may include a baffle 410, two fan mounting portions 420 symmetrically arranged in the left and right directions of the baffle 410, and a strip partition located in the transverse middle of the baffle 410, so as to define two air outlet chambers 411 corresponding to the two axial flow fans 200 between the baffle 410 and the heat exchanger 300, so that the airflow blown out by the two axial flow fans 200 flows to the heat exchanger 300 respectively.

[0096] Therefore, in the indoor unit 10 of the air conditioner in this embodiment of the present invention, each axial fan 200 corresponds to an independent air outlet 411, thereby ensuring that the airflow generated by each axial fan 200 can be effectively guided to the heat exchanger 300 without mutual interference or mixing. This makes the airflow distribution on the surface of the heat exchanger 300 more uniform and orderly, thereby improving the heat exchange efficiency.

[0097] Those skilled in the art will understand that, in some optional embodiments, the air conditioner indoor unit 10 of this invention can be a wall-mounted air conditioner indoor unit. Of course, in other optional embodiments, the air conditioner indoor unit 10 of this invention can also be a cabinet-type air conditioner indoor unit.

[0098] Those skilled in the art should also understand that the terms "front," "rear," "upper," "lower," "top," "bottom," "left," "right," "inner," and "outer" used in the embodiments of this utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0099] Furthermore, in the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0100] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner indoor unit characterized by Comprise: a housing comprising a rear cover, an air outlet frame and a front panel arranged in sequence in a front-rear direction, the rear cover being provided with an air inlet, and the upper side edge of the front panel being spaced apart from the front side of the top wall of the air outlet frame and defining an air outlet opening facing forward; at least one axial flow fan arranged in the housing for causing air flow in the housing to blow out through the air outlet; and a damper rotatably arranged at the air outlet and downstream of the air outlet in the flow path of the air flow, for closing or opening the air outlet and guiding the flow direction of the air flow blown out of the air outlet when the air outlet is opened.

2. The air conditioner indoor unit according to claim 1, characterized in that: the rotation axis of the damper extends horizontally and is arranged at the upper side of the air outlet, so that the damper has an upper blowing position for guiding the air flow to flow obliquely upward, a lower blowing position for guiding the air flow to flow obliquely downward, and a closed position for completely closing the air outlet.

3. The air conditioner indoor unit according to claim 2, characterized in that: the front panel is arranged obliquely upward from rear to front, so that the air flow in the housing has a tendency to blow obliquely upward toward the air outlet under the guidance of the front panel.

4. The air conditioner indoor unit according to claim 3, characterized in that: the front panel is an obliquely arranged flat plate, the damper is a horizontally extending strip-shaped flat plate, and the damper is in the same plane as the front panel when in the closed position.

5. The air conditioner indoor unit according to claim 4, characterized in that: the air conditioner indoor unit further comprises a flow guide rib protruding obliquely outward from the side surface of the damper adjacent to the air outlet away from the rotation axis, for changing the flow direction of the air flow flowing forward along the damper.

6. The air conditioner indoor unit according to claim 3, characterized in that: the front panel is an obliquely arranged arc-shaped plate with an opening facing rear, the damper is a horizontally extending strip-shaped arc-shaped plate with an opening facing rear, and the end of the damper away from the rotation axis abuts against the upper end of the front panel when in the closed position, to completely close the air outlet.

7. The air conditioner indoor unit according to claim 6, characterized in that: the air conditioner indoor unit further comprises a flow guide structure arranged at the upper end of the front panel adjacent to one side of the air outlet frame, for guiding the air flow flowing obliquely upward along the front panel to flow gently forward. 8.The indoor unit of the air conditioner according to claim 3, characterized by, The air conditioner indoor unit further comprises: a heat exchanger arranged in the housing and between the axial flow fan and the air outlet, for exchanging heat with the air flow blown out through the axial flow fan.

9. The air conditioner indoor unit according to claim 8, characterized in that: the heat exchanger is in the shape of a vertically arranged flat plate, and the heat exchanger is spaced apart from the front panel to form an air outlet space for the heat-exchanged air flow to flow forward and upward.

10. The air conditioner indoor unit according to claim 1, characterized in that: the central axis of each axial flow fan extends horizontally and is arranged parallel to the front-rear direction of the housing.

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