Air conditioner indoor unit with circular air outlet

Abstract

The utility model relates to the technical field of air conditioning, in particular to an air conditioner indoor unit with a circular air outlet. The air conditioner indoor unit comprises a shell, at least one circular air outlet and a fan, wherein the front side of the shell is provided with the circular air outlet; the at least one axial flow fan is in one-to-one correspondence with the circular air outlets and is used for blowing airflow in the shell to the circular air outlets; the air deflectors are vertically arranged at the positions, close to the circular air outlet, in the shell at intervals and comprise the upper air deflectors and the lower air deflectors which are located in the upper area and the lower area of the circular air outlet correspondingly, and the upper air deflectors and the lower air deflectors can swing oppositely so as to guide airflow to be gathered forwards from the circular air outlet to be blown out. According to the utility model, through the arrangement of the circular air outlet, the air supply amount is effectively increased, and the air outlet is provided with the plurality of air deflectors capable of swinging in opposite directions, so that an air gathering and supply form of forward gathering and blowing out is realized, and a large-air-amount airflow is blown out at a high speed, thereby effectively increasing the air supply distance and further realizing long-distance axial flow air supply.

Description

Technical Field

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

[0002] Currently, traditional wall-mounted air conditioner indoor units typically employ cross-flow air supply systems and top-intake, bottom-out air circulation, which suffers from problems such as small air outlet angle, small air supply range, low air outlet velocity, short air supply distance, low air volume, and high operating noise. Therefore, some wall-mounted air conditioners on the market now use axial flow fans for air supply. These units feature forward-opening air outlets on the front panel, with the axial flow fan positioned upstream of the outlet, and multiple synchronously pivoting air guides at the outlet to optimize the air supply performance of the wall-mounted indoor unit.

[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, the direct placement of the axial fan at the air outlet in existing air conditioners still results in significant noise levels. Additionally, existing air conditioners typically use linear air outlets, and multiple air guide vanes can only pivot synchronously to change the airflow direction of the outlet. This results in a narrow airflow range and a limited range of airflow, failing to achieve wide-area diffused airflow or long-distance converged 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 deliver axial airflow over long distances, thereby improving the user experience.

[0006] A further objective of this invention is to improve the air delivery efficiency of the axial flow fan, thereby improving the heat exchange efficiency of the indoor unit of the air conditioner.

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

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

[0009] The housing has at least one circular air outlet on its front side;

[0010] At least one axial flow fan, corresponding one-to-one with a circular air outlet, is used to blow airflow from inside the casing toward the circular air outlet; and

[0011] Multiple air guide plates are vertically spaced inside the housing near the circular air outlet, including multiple upper air guide plates located in the upper region of the circular air outlet and multiple lower air guide plates located in the lower region of the circular air outlet. The upper and lower air guide plates can swing in opposite directions to guide the airflow inside the housing to converge and blow out from the circular air outlet.

[0012] Optionally, each axial fan is coaxially arranged with its corresponding circular air outlet to promote forward airflow within the housing.

[0013] Optionally, the indoor unit of the air conditioner also includes:

[0014] The heat exchanger is housed within the casing and located between the axial fan and multiple air guide plates, and is used to exchange heat with the airflow blown out by the axial fan.

[0015] 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 heat exchanger is installed in the air outlet frame, the front panel is a vertically arranged flat plate, and a circular air outlet is provided in the vertical center of the front panel.

[0016] Optionally, the length direction of each air guide plate is parallel to the left and right direction of the air outlet, and the rotation axis of each air guide plate is parallel to its length direction.

[0017] Optionally, multiple air guide vanes are located between the heat exchanger and the front panel, and each air guide vane has the same length and is larger than the diameter of the circular air outlet, in order to guide the flow direction of the airflow blowing toward the circular air outlet.

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

[0019] A flow guide liner is disposed between the heat exchanger and the circular air outlet, defining one or more separately arranged flow guide cavities. Each flow guide cavity corresponds to one of the axial flow fans, ensuring that the airflow from each axial flow fan, after passing through the heat exchanger, flows through its corresponding flow guide cavity to its corresponding circular air outlet.

[0020] Multiple air guide plates are located inside the air guide cavity, and the lengths of the multiple air guide plates in each air guide cavity are respectively matched with the lateral dimensions of the air guide cavity at different positions in the vertical direction.

[0021] Optionally, the multiple air guides have a dispersing position where the distance between the upper and lower air guides gradually increases from back to front, a concentrating position where the distance between the upper and lower air guides gradually decreases from back to front, an upward blowing position where each air guide is tilted upward from back to front, and a downward blowing position where each air guide is tilted downward from back to front. The multiple air guides can swing in the same direction or in opposite directions to switch between the dispersing position, the concentrating position, the upward blowing position, and the downward blowing position.

[0022] Optionally, there are two circular air outlets, which are symmetrically arranged along the left and right sides of the housing.

[0023] Optionally, a vertically extending air outlet grille is provided inside the circular air outlet, and multiple air outlet holes are provided on the air outlet grille to allow airflow from inside the airflow housing to be blown out.

[0024] This utility model discloses an indoor air conditioning unit, comprising a housing, at least one axial flow fan, and multiple air guide plates. By providing at least one circular air outlet on the front side of the housing and installing an axial flow fan corresponding to each circular air outlet, the airflow within the housing is directed towards the circular air outlets, achieving forward-facing axial flow air delivery. Compared to traditional strip-shaped air outlets, this effectively increases the air delivery range and volume. Furthermore, multiple air guide plates are vertically spaced within the housing near the circular air outlets, and the upper and lower air guide plates can swing in opposite directions to guide the airflow within the housing to converge and be blown forward from the circular air outlets. This forward-converging air delivery method allows the large volume of airflow from the circular air outlets to be blown forward at high speed, effectively increasing the air delivery distance and achieving long-distance axial flow air delivery, thereby improving the user experience.

[0025] Furthermore, in the indoor unit of the air conditioner of this utility model, each axial fan is coaxially arranged with its corresponding circular air outlet to promote the airflow in the casing to flow forward, ensuring that the air delivery direction of the axial fan is coaxial with the opening direction of the circular air outlet, reducing the loss of airflow during the forward flow process, improving the air delivery efficiency of the axial fan, and thus improving the heat exchange efficiency of the indoor unit of the air conditioner.

[0026] Furthermore, in the indoor unit of this invention, the heat exchanger is disposed within the casing and located between the axial fan and multiple air guide plates, for heat exchange with the airflow blown out by the axial fan. Thus, by placing the heat exchanger downstream of the axial fan, the indoor unit of this invention ensures that the airflow within the indoor unit fully enters the internal space of the unit before being driven by the axial fan through the heat exchanger, increasing the contact time and uniformity between the airflow and the heat exchanger, thereby improving the heat exchange efficiency of the indoor unit.

[0027] 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

[0028] 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:

[0029] Figure 1 This is a schematic diagram of the structure of an indoor air conditioner unit according to an embodiment of the present invention;

[0030] Figure 2 This is an exploded view of an indoor air conditioner unit according to an embodiment of this utility model;

[0031] Figure 3 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 4 This is a schematic diagram of the structure of an indoor air conditioner unit according to an embodiment of the present invention, with multiple air guide plates in the air dispersing position;

[0033] Figure 5 This is a schematic diagram of the structure of an indoor air conditioner unit according to an embodiment of the present invention, with multiple air guide plates in the air-gathering position;

[0034] Figure 6 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention, with multiple air guide plates in the upward blowing position;

[0035] Figure 7 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of the present invention, with multiple air guide plates in the downward blowing position;

[0036] Figure 8 This is a schematic diagram of the structure of an indoor air conditioner unit according to another embodiment of the present invention;

[0037] Figure 9 This is an exploded view of the indoor unit of an air conditioner according to another embodiment of the present invention;

[0038] Figure 10 This is a cross-sectional view of the indoor unit of an air conditioner according to another embodiment of the present invention from a top-down perspective;

[0039] Figure 11 This is a schematic diagram of the structure of an indoor air conditioner unit according to another embodiment of the present invention, with multiple air guide plates in the air dispersing position;

[0040] Figure 12 This is a schematic diagram of the structure of an indoor air conditioner unit according to another embodiment of the present invention, with multiple air guide plates in the air-gathering position;

[0041] Figure 13This is a schematic diagram of the structure of an air conditioner indoor unit in another embodiment of the present invention with multiple air guide plates in the upward blowing position;

[0042] Figure 14 This is a schematic diagram of the structure of an air conditioner indoor unit in another embodiment of the present invention with multiple air guide plates in the downward blowing position;

[0043] Figure 15 This is a schematic diagram of the structure of an indoor air conditioning unit with multiple air guide plates in a closed position, according to another embodiment of this utility model. Detailed Implementation

[0044] 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.

[0045] like Figure 1 As shown, the indoor unit 10 of the air conditioner according to this embodiment generally includes a housing 100. Specifically, at least one circular air outlet 150 is provided on the 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.

[0046] like Figures 2-7 and Figures 9-15 As 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, corresponding one-to-one with the circular air outlet 150, and is used to blow the airflow inside the housing 100 toward the circular 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 each circular air outlet 150, which is used to promote the airflow inside the housing 100 to flow forward and be blown forward through the circular air outlet 150.

[0047] like Figures 2-7 and Figures 9-15 As shown, the indoor unit 10 of the air conditioner in this embodiment may further include multiple air guide plates (not shown in the figure). The multiple air guide plates are arranged vertically at intervals inside the housing 100 near the circular air outlet 150. That is, in the airflow path, the multiple air guide plates are respectively located upstream of the circular air outlet 150, and guide the airflow at each position in the vertical direction towards the circular air outlet 150.

[0048] Additionally, the multiple air guide plates may include multiple upper air guide plates 500 located in the upper region of the circular air outlet 150 and multiple lower air guide plates 600 located in the lower region of the circular air outlet 150. In this embodiment, the upper air guide plates 500 and lower air guide plates 600 can swing in opposite directions to guide the airflow within the housing 100 to converge and blow forward from the circular air outlet 150.

[0049] The indoor unit 10 of this utility model includes a housing 100, at least one axial fan 200, and multiple air guide plates. By providing at least one circular air outlet 150 on the front side of the housing 100 and arranging axial fans 200 corresponding to each circular air outlet 150, the airflow within the housing 100 is directed towards the circular air outlet 150, achieving forward-facing axial airflow. Compared to traditional strip-shaped circular air outlets 150, this effectively increases the airflow range and volume. Furthermore, multiple air guide plates are vertically spaced within the housing 100 near the circular air outlets 150, and the upper air guide plate 500 and lower air guide plate 600 can swing in opposite directions to guide the airflow within the housing 100 to converge and blow forward from the circular air outlets 150. This forward-converging airflow allows the large volume of airflow from the circular air outlets 150 to be blown forward at high speed, effectively increasing the airflow distance and achieving long-distance axial airflow, thereby improving the user experience.

[0050] In some embodiments, such as Figure 2 and Figure 9 As shown, the length of each air guide plate is parallel to the left-right direction of the circular air outlet 150. Additionally, as... Figures 2-7 and Figures 9-15 As shown, the rotation axis of each air guide plate is parallel to its length direction. Specifically, the rotation axis of each air guide plate is located at the middle of its width direction.

[0051] Furthermore, such as Figure 4 and Figure 11 As shown, multiple air guide plates have a gradually increasing distance between the upper air guide plate 500 and the lower air guide plate 600 from back to front, which is used to guide the airflow inside the housing 100 to diffuse forward and blow out from the circular air outlet 150. Thus, in the airflow direction, the airflow diffuses forward and blows out over a wide area to achieve the air diffusion and air delivery mode of the air conditioning indoor unit 10.

[0052] like Figure 5 and Figure 12 As shown, multiple air guide plates have a converging position where the distance between the upper air guide plate 500 and the lower air guide plate 600 gradually decreases from back to front. This is used to guide the airflow inside the housing 100 to converge and be blown forward from the circular air outlet 150. Thus, in the airflow direction, the airflow converges and flows forward and is blown out at high speed to achieve the air-concentrating and air-discharging form of the air conditioning indoor unit 10.

[0053] like Figure 6 and Figure 13 As shown, multiple air guide vanes each have an upward-blowing position that is tilted from back to front and upward, used to guide the airflow inside the housing 100 to be blown forward and upward from the circular air outlet 150. Thus, in the airflow direction, the airflow flows forward and upward and is blown out at an angle to achieve the upward airflow pattern of the air conditioning indoor unit 10.

[0054] like Figure 7 and Figure 14 As shown, multiple air guide vanes each have a downward-sloping position, tilted from back to front, to guide the airflow within the housing 100 to be tilted forward and downward from the circular air outlet 150. Thus, in the airflow direction, the airflow flows forward and downward and is tilted downward to achieve the downward airflow pattern of the air conditioning indoor unit 10.

[0055] like Figure 15 As shown, multiple air guide vanes each have a vertically positioned closed position for completely closing the circular air outlet 150. This complete closure of the circular air outlet 150 ensures a continuous front appearance for the air conditioner indoor unit 10, enhancing its overall aesthetics.

[0056] In addition, multiple air guide vanes can swing in the same direction or in opposite directions to switch between the air dispersing position, the air concentrating position, the upward blowing position, the downward blowing position, and the closed position.

[0057] Therefore, in the air conditioner indoor unit 10 of this utility model embodiment, the upper air guide plate 500 and the lower air guide plate 600 have a diffused air position, a concentrated air 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, forward convergence, 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.

[0058] In some embodiments, such as Figures 3-7 and Figures 10-15 As shown, each axial fan 200 is coaxially arranged with its corresponding circular air outlet 150 to promote the forward flow of air within the housing 100. That is, the central axis of each axial fan 200 extends horizontally and is arranged parallel to the front-back direction of the housing 100.

[0059] In the indoor unit 10 of the air conditioner in this embodiment of the present invention, each axial fan 200 is coaxially arranged with its corresponding circular air outlet 150 to promote the airflow in the housing 100 to flow forward, ensuring that the air delivery direction of the axial fan 200 is coaxial with the opening direction of the circular air outlet 150, reducing the loss of airflow in the forward flow process, improving the air delivery efficiency of the axial fan 200, and thus improving the heat exchange efficiency of the indoor unit 10 of the air conditioner.

[0060] In some embodiments, such as Figure 2 , Figure 3 , Figure 9 and Figure 10 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 within the housing 100 is propelled forward by the plurality of axial flow fans 200. In one specific embodiment, as... Figure 2 , Figure 3 , Figure 9 and Figure 10 As shown, in the indoor unit 10 of this utility model, there are two axial flow fans 200. Correspondingly, there are two circular air outlets 150. Specifically, the two axial flow fans 200 are symmetrically arranged in the left-right direction of the housing 100, and the two circular air outlets 150 are symmetrically arranged in the left-right direction of the housing 100.

[0061] 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.

[0062] In some embodiments, the rotation direction of each axial fan 200 is opposite to that of the adjacent axial fan 200, so that the airflow blown by the multiple axial fans 200 converges in front of the housing 100.

[0063] 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.

[0064] In some embodiments, such as Figure 1 and Figure 8 As shown, a vertically extending air outlet grille 151 is provided inside the circular air outlet 150, and multiple air outlet holes 152 are provided on the air outlet grille 151 to allow airflow from inside the airflow housing 100 to be blown out. Thus, the air outlet grille 151 can cover the circular air outlet 150, allowing airflow to be blown out through the multiple air outlet holes 152 while preventing the circular air outlet 150 from opening directly forward and damaging the front appearance of the housing 100, thereby improving the aesthetics of the air conditioner indoor unit 10. At the same time, the air outlet grille 151 can also shield the circular air outlet 150, preventing foreign objects from getting stuck inside the housing to a certain extent, thus improving the safety of the air conditioner indoor unit 10 during use.

[0065] In some embodiments, such as Figure 1 and Figure 2 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 As shown, the circular air outlet 150 is located at the vertical center 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 of the indoor unit 10 in the left-right direction is larger than the size of the housing 100 in the up-down direction, and the size of the circular air outlet 150 in the left-right direction of the housing 100 is larger than the size of the circular air outlet 150 in the up-down direction of the housing 100.

[0066] In some embodiments, such as Figures 2-7 and Figures 9-15 As shown, the indoor unit 10 of the air conditioner may also include a heat exchanger 300. Specifically, the heat exchanger 300 is disposed within the housing 100, located between the axial fan 200 and multiple air guide plates, for heat exchange with the airflow blown out by the axial fan 200. That is, the heat exchanger 300 is disposed downstream of the axial fan 200 and upstream of the circular air outlet 150. Thus, the airflow entering the housing 100 from the air inlet 140 can fully contact the heat exchanger 300 for heat exchange under the action of the axial fan 200, and the heat-exchanged airflow is blown out from the circular air outlet 150 under the guidance of the multiple air guide plates.

[0067] Therefore, by placing the heat exchanger 300 downstream of the axial fan 200, the air conditioner indoor unit 10 of this utility model achieves that the airflow in the air conditioner indoor unit 10 has fully entered the internal space of the air conditioner indoor unit 10 before being driven by the axial fan 200 through the heat exchanger 300, thereby improving the contact time and contact uniformity between the airflow and the heat exchanger 300, and thus improving the heat exchange efficiency of the air conditioner indoor unit 10.

[0068] In some embodiments, such as Figures 4-7 , Figures 11-15As shown, the heat exchanger 300 is a vertically extending flat plate, and the dimension of the heat exchanger 300 in the vertical direction of the housing 100 is larger than the dimension of the axial flow fan 200 in the vertical direction of the housing 100. Additionally, as... Figures 4-7 As shown, the side of the heat exchanger 300 away from the axial fan 200 and the housing 100 can define an air outlet space 310. That is to say, the heat exchanger 300 can be designed as a straight-vent type and vertically installed in the housing to save space in the overall thickness of the air conditioning indoor unit 10.

[0069] Therefore, 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, so that the posture of the heat exchanger 300 matches the posture of the multiple axial flow fans 200. This allows the heat exchanger 300 and the multiple axial flow fans 200 to be more closely fitted together, reducing the distance between the airflow blown by each axial flow fan 200 and the heat exchanger 300, thereby improving the uniformity of airflow in the indoor unit 10 and further improving the heat exchange efficiency of the indoor unit 10. At the same time, the heat exchanger 300 is vertically arranged inside the casing, reducing the space occupied by the heat exchanger 300 inside the indoor unit 10 and further optimizing the spatial layout inside the indoor unit 10.

[0070] In some embodiments, such as Figures 2-7 and Figures 9-15 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 one side surface of the heat exchanger 300 near the circular air outlet 150.

[0071] Specifically, one or more separately configured air outlet chambers 411 are defined between the fan housing 400 and the heat exchanger 300. The multiple air outlet chambers 411 can be configured 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.

[0072] In one specific embodiment, the fan housing 400 may include a vertically extending and flat baffle 410, a plurality of annular fan mounting portions 420 that protrude rearward from the vertical center of the baffle 410 and are spaced apart in the left and right directions, and a strip partition that is located between two adjacent fan mounting portions 420 and protrudes forward from the front side of the baffle 410.

[0073] 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.

[0074] 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.

[0075] In some embodiments, such as Figures 3-7 , Figures 10-15 As shown, the housing 100 may include a rear cover 110, an air outlet frame 120, and a front panel 130 arranged sequentially in the front-rear direction.

[0076] Specifically, an air inlet 140 is provided on the rear cover 110. In one specific embodiment, such as Figures 2-7 , Figures 9-15 As shown, the air inlet 140 includes a plurality of air inlet holes 141 spaced apart on the outer periphery of the rear cover 110, so that airflow can enter the housing 100 from various directions at the rear of the housing 100, thereby increasing the air intake area and improving the air intake efficiency. At the same time, it effectively disperses the impact force when the airflow enters the housing 100, thereby reducing the generation of noise and improving the user's comfort and user experience.

[0077] Furthermore, such as Figures 3-7 , Figures 10-15 As shown, the heat exchanger 300 is installed inside the air outlet frame 120. In one specific embodiment, 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, and the air outlet frame 120 is provided with an inwardly protruding mounting member 121 for installing and fixing the heat exchanger 300, so that the heat exchanger 300 is located inside the air outlet frame 120.

[0078] Furthermore, the front panel 130 is a vertically arranged flat plate, and the circular air outlet 150 is located in the vertical center of the front panel 130. Therefore, the airflow circulation mode of the indoor unit 10 of the air conditioner in this embodiment of the present invention is rear air intake and front air outlet.

[0079] Therefore, the air conditioner indoor unit 10 of this utility model uses a layered housing structure 100, which makes the airflow path within the housing 100 clearer and more controllable. A clear airflow channel is formed between the air inlet 140 on the rear cover 110 and the circular air outlet 150 on the lower side of the front panel 130, ensuring that the airflow can flow efficiently from the rear air inlet 140 to the lower front circular air outlet 150. While realizing axial airflow with rear air inlet and front air outlet, it reduces turbulence and energy loss of airflow within the housing 100, improves the airflow guidance and overall air delivery efficiency, thereby improving the heat exchange efficiency of the air conditioner indoor unit 10.

[0080] In one alternative embodiment, such as Figure 2 As shown, the length of each air guide plate is parallel to the left-right direction of the circular air outlet 150, and the rotation axis of each air guide plate is parallel to its length direction. Therefore, multiple air guide plates can effectively guide the vertical flow direction of the airflow toward the circular air outlet 150, thereby precisely adjusting the airflow direction.

[0081] Furthermore, in this optional embodiment, multiple air guide plates are located between the heat exchanger 300 and the front panel 130, and each air guide plate has the same length and is larger than the diameter of the circular air outlet 150, so as to guide the flow direction of the airflow blowing towards the circular air outlet 150. Specifically, the length of each air guide plate is the same and is greater than the distance between the outer edges of the circular air outlets 150 located on the left and right sides. That is to say, multiple air guide plates can simultaneously guide airflow to multiple circular air outlets 150, simplifying the air guiding structure inside the air conditioning indoor unit 10 and reducing the production and use costs of the air conditioning indoor unit 10.

[0082] In another alternative embodiment, such as Figure 9 As shown, the indoor unit 10 of this utility model may further include a flow guide plate 700. The flow guide plate 700 is disposed between the heat exchanger 300 and the circular air outlet 150, and defines one or more separately arranged flow guide cavities 710. Specifically, the flow guide cavities 710 are arranged one-to-one with the axial flow fans 200, so that the airflow blown out by each axial flow fan 200 flows through the heat exchanger 300 and then through its corresponding flow guide cavity 710 to its corresponding circular air outlet 150.

[0083] Therefore, in the air conditioner indoor unit 10 of this utility model embodiment, the air guide plate 700 can ensure that the airflow after heat exchange flows orderly to each circular air outlet 150, reducing airflow turbulence and energy loss. At the same time, the directional airflow helps to improve the air outlet efficiency of the circular air outlet 150, thereby improving the overall heat exchange efficiency of the air conditioner indoor unit 10.

[0084] Furthermore, in this optional embodiment, multiple air guide plates can be located within the airflow guiding cavity 710, and the lengths of the multiple air guide plates within each airflow guiding cavity 710 are respectively matched with the lateral dimensions of the airflow guiding cavity 710 at different positions in the vertical direction. That is, each circular air outlet 150 is provided with corresponding multiple air guide plates for vertical airflow guidance, which improves the individual control of the flow direction of the airflow blown out by each circular air outlet 150, and allows multiple air guide plates corresponding to different circular air outlets 150 to be in different positions, so as to realize more diversified air supply forms, such as air supply from the left side forward and upward, and air supply from the right side forward and downward, which meets the different air supply needs of different locations in the room, thereby further improving the user experience.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 indoor unit for an air conditioner, characterized in that... include: The housing has at least one circular air outlet on its front side; At least one axial fan, corresponding to one of the circular air outlets, is used to blow the airflow inside the housing toward the circular air outlets; as well as Multiple air guide plates are vertically spaced inside the housing near the circular air outlet, including multiple upper air guide plates located in the upper region of the circular air outlet and multiple lower air guide plates located in the lower region of the circular air outlet. The upper air guide plates and the lower air guide plates can swing in opposite directions to guide the airflow inside the housing to converge and blow out from the circular air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, Each of the axial flow fans is coaxially arranged with its corresponding circular air outlet to promote the forward flow of air within the housing.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The indoor unit of the air conditioner also includes: A heat exchanger is disposed inside the housing and located between the axial flow fan and the plurality of air guide plates, for exchanging heat with the airflow blown out by the axial flow fan.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing includes a rear cover, an air outlet frame, and a front panel arranged sequentially in the front-to-back direction. An air inlet is provided on the rear cover. The heat exchanger is installed in the air outlet frame. The front panel is a vertically arranged flat plate, and the circular air outlet is located in the vertical center of the front panel.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The length direction of each of the air guide plates is parallel to the left-right direction of the air outlet, and the rotation axis of each air guide plate is parallel to its length direction.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The plurality of air guide plates are located between the heat exchanger and the front panel, and each air guide plate has the same length and is larger than the diameter of the circular air outlet, so as to guide the flow direction of the airflow blowing toward the circular air outlet.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The indoor unit of the air conditioner also includes: A flow guide liner is disposed between the heat exchanger and the circular air outlet, defining one or more separately arranged flow guide cavities. Each flow guide cavity corresponds one-to-one with an axial flow fan, so that the airflow from each axial flow fan, after passing through the heat exchanger, flows through its corresponding flow guide cavity to its corresponding circular air outlet. The plurality of air guide plates are located inside the flow guiding cavity, and the length of the plurality of air guide plates located in each flow guiding cavity is respectively matched with the lateral dimension of the flow guiding cavity at different positions in the vertical direction.

8. The indoor unit of the air conditioner according to claim 5, characterized in that, The plurality of air guide plates have a dispersing position where the distance between the upper air guide plate and the lower air guide plate gradually increases from back to front, a concentrating position where the distance between the upper air guide plate and the lower air guide plate gradually decreases from back to front, an upward blowing position where each air guide plate is tilted upward from back to front, and a downward blowing position where each air guide plate is tilted downward from back to front. The plurality of air guide plates can swing in the same direction or in opposite directions to switch between the dispersing position, the concentrating position, the upward blowing position, and the downward blowing position.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The number of circular air outlets is two, and the two circular air outlets are symmetrically arranged along the left and right direction of the housing.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The circular air outlet is provided with a vertically extending air outlet grille, and the air outlet grille is provided with multiple air outlet holes to allow airflow from the airflow housing to be blown out.

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