Air conditioner

Abstract

The present disclosure relates to an air conditioner comprising an air conditioner air duct and at least one air blade, the air conditioner air duct comprising a first air outlet and a second air outlet and at least one arc-shaped air duct section, two ends of the arc-shaped air duct section being in communication with the first air outlet and the second air outlet respectively, the first air outlet and the second air outlet having different air outlet directions, and the at least one air blade being rotatably arranged in the arc-shaped air duct section and being used for air suction from the first air outlet or the second air outlet, so that the air conditioner can selectively outlet air from one of the first air outlet and the second air outlet. The air conditioner can adjust the air outlet direction according to the needs of the user, realize airflow delivery in different directions, and secondly, the arc-shaped air duct section can reduce the turbulence and separation generated by airflow during the flow process through the streamlined design, and cooperate with the directional guiding effect of the air blade, which is conducive to improving the uniformity and delivery efficiency of the airflow in the arc-shaped air duct section, thereby improving the air supply efficiency of the air conditioner.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, and more specifically, to an air conditioner. Background Technology

[0002] In related technologies, the air vents of air conditioners are fixed, and their airflow has a single path from intake to exhaust, resulting in low air circulation efficiency and affecting the user experience. Utility Model Content

[0003] The purpose of this disclosure is to provide an air conditioner that at least partially solves the problems existing in the related art.

[0004] To achieve the above objectives, according to a first aspect of this disclosure, an air conditioner is provided, comprising: An air conditioning duct includes a first air outlet, a second air outlet, and at least one arc-shaped duct section. The two ends of the arc-shaped duct section are respectively connected to the first air outlet and the second air outlet. The air outlets of the first air outlet and the second air outlet have different air outlet directions. At least one fan blade is rotatably disposed within the arc-shaped air duct section, the at least one fan blade being used to draw air from the first air vent or the second air vent, so that the air conditioner can selectively discharge air from one of the first air vent and the second air vent.

[0005] Through the above technical solution, since the air conditioner can selectively discharge air from either the first or second air vent, it can adjust the air vent according to the user's needs during use, thereby regulating the airflow direction. This allows for airflow delivery in different directions, making it suitable for various scenarios, improving air circulation efficiency, and enhancing the user experience. For example, it can achieve more effective air circulation and regulation in room corners or specific areas, overcoming the limitations of traditional fixed-direction air vents and improving the air conditioner's adaptability to different spatial layouts and usage requirements.

[0006] Furthermore, since at least one fan blade installed in the arc-shaped air duct section can draw air from the first or second air inlet, even if a single fan blade is installed in the arc-shaped air duct section of the air conditioner, the air outlet requirements of different directions of the air conditioner can be met. This helps to simplify the overall structure of the air conditioner and improve its compactness.

[0007] Secondly, the streamlined design of the curved air duct section can reduce turbulence and separation generated during airflow. Combined with the directional guiding effect of the fan blades, it helps to improve the uniformity and delivery efficiency of airflow within the curved air duct section, thereby improving the air supply efficiency of the air conditioner.

[0008] In addition, the first and second air vents, which are connected to the two ends of the arc-shaped air duct section, can be far apart. This helps to prevent air blown out from one of the two air vents (i.e., the first air vent and the second air vent) from being sucked in by the other of the two closer air vents, thus affecting the air circulation in the room and improving the ventilation efficiency of the air conditioner.

[0009] In some possible implementations, the at least one fan blade includes an axial fan blade, and the air conditioner further includes a drive member for driving the axial fan blade to rotate forward or backward, so that the air conditioner can selectively discharge air from one of the first air outlet and the second air outlet.

[0010] The driving component can drive the axial fan blades to rotate, thereby enabling the air conditioner to draw air in from one of the first air vents and the second air vent, and to discharge air from the other of the first air vents and the second air vent, thus achieving air discharge from the air conditioner in different directions.

[0011] Furthermore, since the driving component achieves airflow from the air conditioner in different directions by driving the axial fan blades to rotate in different directions (i.e., forward and reverse rotation), it eliminates the need for complex airflow switching devices and / or airflow channels, which helps to simplify the overall structure of the air conditioner and improve its compactness.

[0012] In addition, the fan blades constructed as axial flow blades have advantages such as large air volume, low air pressure and low cost, which not only improve the user experience of air conditioners using such fan blades, but also help reduce the overall cost of air conditioners.

[0013] In some possible implementations, the at least one fan blade includes a first axial flow fan blade and a second axial flow fan blade; The first axial flow fan blade and the second axial flow fan blade are rotatably disposed within the same arc-shaped air duct section and are arranged at intervals along the axial direction of the arc-shaped air duct section; The first axial fan blade and the second axial fan blade rotate synchronously in either the forward or reverse direction, so that the air conditioner can selectively discharge air from either the first air outlet or the second air outlet; or One of the first axial fan blades and the second axial fan blades rotates selectively so that the air conditioner can selectively discharge air from one of the first air outlet and the second air outlet.

[0014] By arranging the first and second axial flow fan blades at intervals within the arc-shaped air duct section, the air volume and velocity requirements of the air conditioner in different directions can be met.

[0015] In some possible implementations, the first and second axial flow fan blades rotate in the same direction, and when the first and second axial flow fan blades rotate synchronously, their rotation directions are the same; or, The first and second axial flow fan blades rotate in opposite directions; when the first and second axial flow fan blades rotate synchronously, their rotation directions are the same; or, The air conditioner is configured to selectively activate one of the first and second axial flow fan blades, whose rotation direction is the same as the rotation direction.

[0016] The first and second axial flow fan blades work together to meet the air volume and speed requirements of the air conditioner in different directions.

[0017] In some possible implementations, there are multiple arc-shaped air duct segments arranged side by side.

[0018] By setting multiple independent arc-shaped air duct sections inside the air conditioner, and installing at least one fan blade in each arc-shaped air duct section, the air conditioner can adjust the wind speed and flow rate of each arc-shaped air duct section according to different usage needs, and can avoid mutual interference of airflows and improve the uniformity of air supply.

[0019] Furthermore, even if some of the multiple curved air duct sections malfunction during use, the remaining curved air duct sections can still deliver air normally, which not only improves the stability and reliability of the air conditioner, but also facilitates the inspection and maintenance of the air conditioner.

[0020] In some possible implementations, the fan blades within the plurality of said arc-shaped air duct sections are configured to rotate simultaneously in either forward or reverse direction during operation.

[0021] In other words, during the operation of the air conditioner, the fan blades in multiple arc-shaped air duct sections will rotate simultaneously, and each arc-shaped air duct section can generate airflow. This helps to ensure the overall air volume of the air conditioner and avoid the situation where the air volume of the air conditioner is too small and cannot meet the user's usage requirements.

[0022] In some possible implementations, the plurality of said arc-shaped air duct segments include at least one first arc-shaped air duct segment and at least one second arc-shaped air duct segment; The direction of rotation of the fan blades is the same in each of the first arc-shaped air duct sections; The direction of rotation of the blades in each of the second arc-shaped air duct sections is the same; The direction of rotation of the blades in the first arc-shaped air duct section is opposite to that of the blades in the second arc-shaped air duct section.

[0023] In other words, the air conditioner is equipped with multiple fan blades with different rotation directions (installation angles). Thus, during the operation of the air conditioner, the first and second arc-shaped air duct sections can generate different air volumes in different air outlet directions. The first and second arc-shaped air duct sections work together, and the air volumes are superimposed, so that the air conditioner has the same or similar air volume when it exits from either air outlet (i.e., the first air outlet and the second air outlet). That is, the air conditioner can have the same air volume when it supplies air in both forward and reverse directions, which can meet the requirement of equal air volume when the air conditioner supplies air in reversible directions.

[0024] In some possible implementations, the number of the arc-shaped air duct segments is 2N, where N is a positive integer.

[0025] In other words, the number of curved air duct sections is a positive integer multiple of 2. A number of curved air duct sections that are positive integer multiples of 2 can allow the number of blades rotating in opposite directions to be the same, which is beneficial to ensure that the air conditioner can have the same air volume when supplying air in both the forward and reverse directions.

[0026] In some possible implementations, the 2N arc-shaped air duct segments include N first arc-shaped air duct segments, wherein the fan blades in the N first arc-shaped air duct segments rotate in the same direction; The 2N arc-shaped air duct segments include N second arc-shaped air duct segments, and the air blades in the N second arc-shaped air duct segments rotate in the same direction; The direction of rotation of the blades in the first arc-shaped air duct section is opposite to that of the blades in the second arc-shaped air duct section.

[0027] Thus, the number of the first and second arc-shaped air duct sections with different rotation directions is equal, allowing the same number of air blades with different rotation directions (installation angles of the blades) to be installed inside the air conditioner. This enables the air conditioner to have the same or similar air volume when air is discharged from either air outlet (i.e., the first air outlet and the second air outlet). In other words, the air conditioner can have the same air volume when supplying air in both forward and reverse directions, which can meet the requirement of equal air volume when the air conditioner supplies air in reversible directions.

[0028] In some possible implementations, there are multiple fan blades within the same arc-shaped air duct section, and the multiple fan blades rotate in the same direction within the arc-shaped air duct section. The rotational speed at which each of the aforementioned blades rotates in the same direction as its own rotational direction is the first rotational speed; Each of the aforementioned fan blades is configured to rotate at a second rotational speed when its rotational direction is opposite to its own rotational direction; The first rotational speed is less than the second rotational speed.

[0029] In this way, whether the air comes out from the first air outlet or the second air outlet, the fan blades with positive rotation (right-hand rotation) and the fan blades with negative rotation (left-hand rotation) can have the same air volume, so that the air conditioner can have the same air volume when the air comes out from different directions, thus meeting the requirements of reversible air supply of the air conditioner.

[0030] In some possible implementations, the plane of rotation of the wind blade has an angle γ with the horizontal plane, wherein γ satisfies: 0°≤γ≤90°.

[0031] The fan blades can be arranged vertically relative to the horizontal plane within the curved air duct section, or they can be arranged at an angle relative to the horizontal plane within the curved air duct section. The arrangement of the fan blades within the curved air duct section is flexible and can be adjusted flexibly according to usage requirements.

[0032] In some possible implementations, the arc-shaped air duct section includes a first section and a second section; The front and rear ends of the first segment are arranged along the front-rear direction of the air conditioner, and the front end of the first segment is used to connect to the first air outlet. The upper end of the second segment is connected to the rear end of the first segment, and the lower end of the second segment is used to connect to the second air outlet. Wherein, the fan blade is disposed within the first section or at the position where the first section and the second section are connected, and the angle γ between the rotation plane of the fan blade and the horizontal plane is 90°; or, The fan blade is disposed in the second section, and the angle γ between the rotation plane of the fan blade and the horizontal plane satisfies 0°≤γ<90°.

[0033] In other words, axial flow fan blades can be arranged vertically in the first section of the curved air duct, or inclined or horizontally in the second section of the curved air duct, giving the fan blades a high degree of flexibility in arrangement within the curved air duct section.

[0034] In some possible implementations, the rotation center of the fan blade is located at the center of the cross-section of the arc-shaped duct section.

[0035] Since the rotation center of the fan blades is located at the center of the cross-section of the curved air duct section, the distance between the blades and the wall of the curved air duct section remains consistent during the rotation of the fan blades. This not only helps to make the air flow in the curved air duct section more stable and uniform, but also reduces the generation of turbulence in the curved air duct section, thereby improving the quality of air delivery.

[0036] In some possible implementations, the air conditioner further includes a housing and a heat exchanger assembly, with the air conditioning duct disposed within the housing; The housing is provided with a partition, which divides the air conditioning duct into a connecting duct section and at least one arc-shaped duct section. The partition is provided with a connecting hole for connecting the connecting duct section and the arc-shaped duct section. The first air vent is located on one side of the housing, and the second air vent is located on the other side of the housing; The heat exchanger assembly is located in the connecting duct section.

[0037] The connecting hole enables the connection between the air duct section and the curved air duct section, thereby allowing air to flow within the air conditioner.

[0038] In addition, the heat exchanger assembly can exchange heat with the air during the operation of the air conditioner, thereby heating and cooling the air, and thus heating and cooling the room where the air conditioner is installed.

[0039] In some possible implementations, the first air vent is disposed on the side panel of the housing, and the second air vent is disposed on the bottom panel of the housing.

[0040] In this way, when there is a need for cooling indoors, the air can be directed from the first air vent at a higher height. This allows the cool air blown out by the air conditioner to flow slowly from the upper part of the room to the lower part under its own gravity (sky curtain wind). This allows for rapid heat exchange with the less dense hot air, achieving rapid cooling of the room, and also provides a shower-like breeze that covers the human body from top to bottom, improving user comfort.

[0041] When there is a need for heating indoors, the air conditioner can also blow air from the lower second air vent. In this way, the hot air blown out by the air conditioner can rise slowly due to its low density (carpet wind), which can quickly exchange heat with the higher density cold air and cover the human body from bottom to top in a shower wind manner, improving the user's comfort.

[0042] In some possible implementations, the partition divides the cavity of the housing into a first chamber and a second chamber, the first chamber being configured as the connecting air duct section; The air conditioner includes at least one arc-shaped air duct, which is disposed in the second chamber, and the interior of each arc-shaped air duct defines a corresponding arc-shaped air duct segment.

[0043] Curved air ducts can guide airflow, preventing it from spreading and leaking freely within the air conditioner. This helps reduce energy loss during operation and improves the air delivery efficiency of the air conditioner.

[0044] In addition, the connecting air duct sections and curved air ducts separated by partitions are less likely to interfere with each other during use, and are easier to inspect and maintain.

[0045] In some possible implementations, the first air vent is located on the front side of the housing. Along the front-rear direction of the housing, the length of the air duct is L0, the length of the connecting air duct section is L1, the minimum distance from the end of the arc-shaped air duct section connected to the connecting hole to the second air vent is L2, and the length of the arc-shaped air duct section is L3. The L0 and L1 satisfy: 0.3 < L1 / L0 < 0.35; and / or, The L2 and L3 satisfy the condition: 0.4 < L2 / L3 < 0.5.

[0046] Since the ratio of the length of the connecting duct section to the length of the duct is L1 / L0 > 0.3, the connecting duct section can be relatively long. A longer connecting duct section allows for the arrangement of larger heat exchanger components, thereby enabling the air conditioner to have a better heat exchange effect. This effectively avoids the situation where the connecting duct section is too short, leaving too little space for the front and rear of the heat exchanger components, which limits the size (area) of the heat exchanger components and results in poor heat exchange effect.

[0047] Furthermore, since the ratio of the length of the connecting duct section to the length of the duct is L1 / L0 < 0.35, the length of the connecting duct section will not be too large. This effectively avoids the situation where the length of the connecting duct section is too large, resulting in a shorter arc-shaped duct section. The smaller arc-shaped duct section has less space and a shorter air supply path, which leads to a decrease in air volume.

[0048] Secondly, since the ratio of the length of the connecting duct section to the length of the duct is L1 / L0 > 0.3, the connecting duct section can be relatively long. A longer connecting duct section can accommodate larger heat exchanger components, thereby enabling the air conditioner to have a better heat exchange effect. This effectively avoids the situation where the connecting duct section is too short, leaving too little space for the heat exchanger components, which limits the size (area) of the heat exchanger components and results in poor heat exchange effect.

[0049] In addition, since the ratio of the length of the connecting duct section to the length of the duct is L1 / L0 < 0.35, the length of the connecting duct section will not be too large. This effectively avoids the situation where the length of the connecting duct section is too large, resulting in a shorter arc-shaped duct section. The smaller arc-shaped duct section has less space and a shorter air supply path, which leads to a decrease in air volume.

[0050] In some possible implementations, the at least one fan blade includes an axial fan blade, which is positioned at the location with the smallest flow area in the arc-shaped duct section.

[0051] By placing the axial fan blades at the point where the flow area of ​​the curved duct section is minimized, the working efficiency of the axial fan blades can be improved, the air volume can be increased, and the generation of turbulence and eddies can be reduced.

[0052] In some possible implementations, the air conditioner further includes a housing, and the arc-shaped air duct section has a circular cross-section; The inner diameter of the end of the arc-shaped air duct section connected to the first air outlet is R1, the inner diameter of the position where the fan blade is located in the arc-shaped air duct section is R2, the diameter of the end of the arc-shaped air duct section connected to the second air outlet is R3, the second air outlet is located on the upper or lower side of the box, and the dimension of the box in the vertical direction is H0. R1, R2, and R3 satisfy: R2 < R1, R2 < R3; and / or, R1 and H0 satisfy the condition: 0.9 < R1 / H0 < 1.

[0053] In other words, the dimensions of the arc-shaped duct section connecting to the first and second air inlets are relatively large, and the axial flow fan blades are set in a position with a smaller flow area within the arc-shaped duct section. This helps to improve the working efficiency of the axial flow fan blades, increase the air supply volume, and also reduce the generation of turbulence and eddies.

[0054] Secondly, since the vertical dimension H0 of the housing and the diameter R1 of the end of the arc-shaped air duct section connected to the first air outlet satisfy R1 / H0>0.9, the end of the arc-shaped air duct section connected to the first air outlet can have a large diameter. For the implementation where the heat exchanger assembly is set between the arc-shaped air duct section and the first air outlet, the air flowing through the heat exchanger assembly can have a large contact area with the heat exchanger, which is beneficial to improving the heat exchange effect of the air conditioner.

[0055] Furthermore, since the vertical dimension H0 of the enclosure and the diameter R1 of the end of the arc-shaped air duct section connected to the first air outlet satisfy R1 / H0<1, the dimension of the end of the arc-shaped air duct section connected to the first air outlet will not be greater than the dimension of the enclosure. This effectively avoids the situation where the dimension of the first section of the arc-shaped air duct section connected to the first air outlet is too large and cannot be arranged in the enclosure.

[0056] In some possible implementations, the air conditioner includes two of the arc-shaped air duct sections, which are arranged side by side; The air conditioner also includes a heat exchanger assembly, which extends along the parallel direction of the two arc-shaped air duct sections and is arranged opposite to the two arc-shaped air ducts. In the parallel direction of the two arc-shaped air duct sections, the length of the heat exchanger assembly is B1, and the distance between the two arc-shaped air duct sections is B2, wherein B1 and B2 satisfy: 0.12 < B2 / B1 < 0.2.

[0057] Since the vertical dimension H0 of the housing and the diameter R1 of the end of the arc-shaped air duct section connected to the first air outlet satisfy R1 / H0>0.9, the end of the arc-shaped air duct section connected to the first air outlet can have a large diameter. For the implementation where the heat exchanger assembly is set between the arc-shaped air duct section and the first air outlet, the air flowing through the heat exchanger assembly can have a large contact area with the heat exchanger, which is beneficial to improving the heat exchange effect of the air conditioner.

[0058] Furthermore, since the vertical dimension H0 of the housing and the diameter R1 of the end of the curved duct section connected to the first air outlet satisfy R1 / H0 < 1, the dimension of the end of the curved duct section connected to the first air outlet will not exceed the dimension of the housing. This effectively avoids the situation where the first section of the curved duct section connected to the first air outlet is too large to be arranged inside the housing. In some possible embodiments, the air conditioner is a ducted air conditioner.

[0059] In some possible implementations, the air conditioner is a ducted unit.

[0060] Air conditioners with ductwork design can work in conjunction with the outdoor unit through ductwork to achieve efficient indoor air delivery and temperature balance, while also being aesthetically pleasing and easy to install in the user's home.

[0061] Through the above technical solution, since the air conditioner can selectively discharge air from either the first or second air vent, it can adjust the air vent according to the user's needs during use, thereby regulating the airflow direction. This allows for airflow delivery in different directions, making it suitable for various scenarios, improving air circulation efficiency, and enhancing the user experience. For example, it can achieve more effective air circulation and regulation in room corners or specific areas, overcoming the limitations of traditional fixed-direction air vents and improving the air conditioner's adaptability to different spatial layouts and usage requirements.

[0062] Furthermore, since at least one fan blade installed in the arc-shaped air duct section can draw air from the first or second air inlet, even if a single fan blade is installed in the arc-shaped air duct section of the air conditioner, the air outlet requirements of different directions of the air conditioner can be met. This helps to simplify the overall structure of the air conditioner and improve its compactness.

[0063] Secondly, the streamlined design of the curved air duct section can reduce turbulence and separation generated during airflow. Combined with the directional guiding effect of the fan blades, it helps to improve the uniformity and delivery efficiency of airflow within the curved air duct section, thereby improving the air supply efficiency of the air conditioner.

[0064] In addition, the first and second air vents, which are connected to the two ends of the arc-shaped air duct section, can be far apart. This helps to prevent air blown out from one of the two air vents (i.e., the first air vent and the second air vent) from being sucked in by the other of the two closer air vents, thus affecting the air circulation in the room and improving the ventilation efficiency of the air conditioner.

[0065] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0066] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0067] Figure 1 This is a three-dimensional structural diagram of an air conditioner provided in an exemplary embodiment of the present disclosure.

[0068] Figure 2 This is a first-view perspective schematic diagram of an air conditioner provided in an exemplary embodiment of this disclosure.

[0069] Figure 3 This is an exploded three-dimensional structural diagram of an air conditioner provided in an exemplary embodiment of this disclosure.

[0070] Figure 4 This is a perspective view of an air conditioner provided in an exemplary embodiment of the present disclosure from a second perspective.

[0071] Figure 5 This is a third-view perspective schematic diagram of an air conditioner provided in an exemplary embodiment of this disclosure.

[0072] Explanation of reference numerals in the attached figures 100-Air conditioner; 10-Air conditioning duct; 20-Arc-shaped duct section; 21-First section; 22-Second section; 30-First air outlet; 40-Second air outlet; 50-Fan blade; 51-Axial flow fan blade; 52-First axial flow fan blade; 53-Second axial flow fan blade; 60-Drive component; 70-Casing; 71-Partition component; 72-Connecting hole; 73-Side plate; 74-Base plate; 75-First chamber; 76-Second chamber; 80-Heat exchanger assembly; 90-Connecting duct section; 110-Arc-shaped duct; 120-Mounting bracket. Detailed Implementation

[0073] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0074] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". Definitions of other terms will be given in the following description.

[0075] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units, and do not have any order or importance.

[0076] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0077] In this disclosure, it should be understood that directional terms such as "up and down, front and back, and left and right" are used only for the convenience of describing this disclosure and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation structure and operation, and therefore should not be construed as a limitation of this disclosure. For details, please refer to... Figures 1 to 5 As shown, the front-to-back direction can be the same as the front-to-back direction of the air conditioner, the front side can be the side of the air conditioner with the first air vent, and the left-to-right direction can be the same as the left-to-right direction of the air conditioner (e.g., the width direction of the air conditioner).

[0078] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," "link," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0079] As mentioned above, in related technologies, the indoor unit of an air conditioner typically consists of a single air inlet, a single air outlet, and an evaporator, and delivers air for both cooling and heating operations through a guide vane. This traditional air delivery method suffers from a single air delivery pattern and a poor user experience.

[0080] In view of this, such as Figures 1 to 5 As shown, according to a first aspect of this disclosure, an air conditioner 100 is provided, including an air conditioning duct 10 and at least one fan blade 50. The air conditioning duct 10 includes a first air outlet 30 and a second air outlet 40 and at least one arc-shaped duct section 20. The two ends of the arc-shaped duct section 20 are respectively connected to the first air outlet 30 and the second air outlet 40. The air outlets of the first air outlet 30 and the second air outlet 40 have different air outlet directions. At least one fan blade 50 is rotatably disposed within the arc-shaped duct section 20. The at least one fan blade 50 is used to draw air from the first air outlet 30 or the second air outlet 40, so that the air conditioner 100 can selectively discharge air from one of the first air outlet 30 and the second air outlet 40.

[0081] It should be noted here that air conditioner 100 refers to equipment in an air conditioning system that is installed indoors or outdoors to perform functions such as air supply, heating and cooling. For example, air conditioner 100 can be a household air conditioner, a commercial air conditioner, or a laboratory air conditioner. This disclosure does not limit it in this regard.

[0082] The aforementioned arc-shaped air duct section 20 refers to an air duct section in which the entire air duct is arc-shaped and the main structure of the air duct (including the air duct axis, inner wall and overall direction) is a continuous curved shape.

[0083] Through the above technical solution, since the air conditioner 100 can selectively discharge air from either the first air vent 30 or the second air vent 40, the air conditioner 100 can adjust the air vent according to the user's needs during use, thereby regulating the airflow direction. This allows for airflow delivery in different directions, making it suitable for various scenarios, improving air circulation efficiency, and enhancing the user experience. For example, it can achieve more effective air circulation and regulation in room corners or specific areas, overcoming the limitations of traditional fixed-direction air vents and improving the adaptability of the air conditioner 100 to different spatial layouts and usage requirements.

[0084] Furthermore, since at least one fan blade 50 installed in the arc-shaped air duct section 20 can draw air from the first air outlet 30 or the second air outlet 40, even if a single fan blade 50 is installed in the arc-shaped air duct section 20 of the air conditioner 100, the requirements for air outlet in different directions of the air conditioner 100 can be met. This helps to simplify the overall structure of the air conditioner 100 and improve the compactness of the air conditioner 100.

[0085] Secondly, the streamlined design of the arc-shaped air duct section 20 can reduce turbulence and separation generated during airflow. Combined with the directional guiding effect of the fan blades 50, it helps to improve the uniformity and delivery efficiency of airflow within the arc-shaped air duct section 20, thereby improving the air supply efficiency of the air conditioner 100.

[0086] In addition, the first air outlet 30 and the second air outlet 40, which are respectively connected to the two ends of the arc-shaped air duct section 20, can also have a greater distance between them. This helps to prevent the air blown out by one of the two air outlets (i.e., the first air outlet 30 and the second air outlet 40) from being sucked in by the other of the two closer air outlets, thus affecting the air circulation in the room and improving the ventilation efficiency of the air conditioner 100.

[0087] In order to drive the fan blade 50 to rotate, thereby enabling the air conditioner 100 to deliver air, in some possible embodiments, at least one fan blade 50 includes an axial fan blade 51, and the air conditioner 100 also includes a drive member 60 for driving the axial fan blade 51 to rotate forward or backward, so that the air conditioner 100 can selectively deliver air from one of the first air outlet 30 and the second air outlet 40.

[0088] The drive unit 60 can drive the axial fan blade 51 to rotate, thereby enabling the air conditioner 100 to draw air from one of the first air vent 30 and the second air vent 40 and to discharge air from the other of the first air vent 30 and the second air vent 40, thus realizing air discharge from the air conditioner 100 in different directions.

[0089] Furthermore, since the drive unit 60 drives the axial flow fan blades 51 to rotate in different directions (i.e., forward and reverse rotation) to achieve airflow from the air conditioner 100 in different directions, it can achieve airflow from the air conditioner 100 in different directions without the need for complex airflow switching devices and / or flow channels, which helps to simplify the overall structure of the air conditioner 100 and improve its compactness.

[0090] In addition, the fan blade 50, which is constructed as an axial flow fan blade 51, has the advantages of large air volume, low air pressure and low cost, which not only helps to improve the user experience of the air conditioner 100 using the fan blade 50, but also helps to reduce the overall cost of the air conditioner 100.

[0091] In the air conditioner 100 provided in this disclosure, the drive unit 60 can have any suitable type, and this disclosure does not limit it. As one embodiment of this disclosure, the drive unit 60 is constructed as a motor, which can drive the axial flow fan blade 51 to rotate, thereby realizing the air supply of the air conditioner 100.

[0092] To achieve the arrangement of the drive component 60 of the fan blade 50 within the curved air duct section 20, optionally, as follows: Figure 3 and Figure 5As shown, the air conditioner 100 also includes a mounting bracket 120. The drive unit 60 is installed inside the arc-shaped air duct section 20 through the mounting bracket 120, and the axial flow fan blade 51 is sleeved and fixed to the output shaft of the drive unit 60.

[0093] The mounting bracket 120 enables reliable installation of the drive component 60 within the arc-shaped air duct section 20, preventing the drive component 60 from shaking during use.

[0094] Furthermore, the axial flow fan blade 51 mounted on the output shaft of the drive member 60 can be connected to the drive member 60 without the need for a transmission component, which helps to improve the compactness of the air conditioner 100 that uses the fan blade 50.

[0095] In the air conditioner 100 provided in this disclosure, the number of fan blades 50 can be one or more; this disclosure does not limit this. As one embodiment of this disclosure, for example... Figures 2 to 4 As shown, at least one fan blade 50 includes a first axial flow fan blade and a second axial flow fan blade. The first axial flow fan blade and the second axial flow fan blade are rotatably arranged in the same arc-shaped air duct section 20 and are spaced apart along the axial direction of the arc-shaped air duct section 20.

[0096] The first axial flow fan blades and the second axial flow fan blades are arranged at intervals within the arc-shaped air duct section 20 to cooperate with each other, which can meet the requirements of air volume and air speed of the air conditioner 100 in different directions.

[0097] The first and second axial flow fan blades can have any appropriate operating mode within the arc-shaped air duct section 20, as long as the first and second axial flow fan blades can meet the air supply requirements of the air conditioner 100.

[0098] As one embodiment of this disclosure, the first axial flow fan blade and the second axial flow fan blade rotate synchronously in the forward or reverse direction so that the air conditioner 100 can selectively discharge air from one of the first air outlet 30 and the second air outlet 40.

[0099] In this way, when the first axial fan blade and the second axial fan blade rotate in the same direction, the air conditioner 100 can be vented from one of the first air outlet 30 and the second air outlet 40. When the first axial fan blade and the second axial fan blade rotate in the opposite direction, the air conditioner 100 can be vented from the other of the first air outlet 30 and the second air outlet 40, thereby realizing airflow from the air conditioner 100 in different directions.

[0100] In addition, the control requirements for the first and second axial flow fan blades that rotate synchronously in the forward or reverse directions are relatively low, which helps to reduce the control requirements of the entire air conditioner 100.

[0101] As another embodiment of this disclosure, one of the first axial flow fan blades and the second axial flow fan blades is selectively rotated so that the air conditioner 100 can selectively discharge air from one of the first air outlet 30 and the second air outlet 40.

[0102] In this way, when the air conditioner needs to output air from either the first air outlet 30 or the second air outlet 40, the axial fan blade 51 corresponding to the air outlet (i.e., one of the first axial fan blade and the second axial fan blade) can be selectively controlled to rotate, while the other axial fan blade 51 is in the closed state, which can also realize the air outlet of the air conditioner 100 in different directions.

[0103] Furthermore, since the first and second axial flow fan blades do not rotate completely during the operation of the air conditioner 100, this also helps to reduce the energy consumption of the air conditioner 100 and further improve the user experience.

[0104] In the air conditioner 100 provided in this disclosure, the first axial flow fan blade and the second axial flow fan blade can be fan blades 50 with the same rotation direction (blade installation angle), or the first axial flow fan blade and the second axial flow fan blade can be fan blades 50 with different rotation directions (blade installation angles). This disclosure does not limit the scope of the fan blades.

[0105] In a first embodiment of this disclosure, the first axial flow fan blade and the second axial flow fan blade have the same rotation direction, that is, the blades of the first axial flow fan blade and the second axial flow fan blade have the same installation angle, and when the first axial flow fan blade and the second axial flow fan blade rotate synchronously, the rotation directions of the first axial flow fan blade and the second axial flow fan blade are the same.

[0106] In this way, the airflow generated by the first axial flow fan blade and the second axial flow fan blade during rotation can be superimposed on each other, thereby meeting the air supply requirements of the air conditioner 100.

[0107] Furthermore, since the first axial flow fan blade and the second axial flow fan blade have the same rotation direction and rotation direction, the cost of identical components is lower, and the control logic is the same, which helps to reduce the overall cost of the air conditioner 100.

[0108] In a second embodiment of this disclosure, the first axial flow fan blade and the second axial flow fan blade rotate in opposite directions, that is, the blades of the first axial flow fan blade and the second axial flow fan blade have opposite mounting angles, and when the first axial flow fan blade and the second axial flow fan blade rotate synchronously, the rotation directions of the first axial flow fan blade and the second axial flow fan blade are the same.

[0109] When the first and second axial flow fan blades rotate in opposite directions, they will produce different air volumes. The air volumes produced by the first and second axial flow fan blades are superimposed, which can meet the air supply requirements of the air conditioner 100 without producing excessive air volume, thus improving the user experience.

[0110] In addition, the first and second axial flow fan blades, which rotate in the same direction, can also have relatively simple control logic.

[0111] As a third embodiment of this disclosure, the air conditioner 100 is configured to selectively activate one of the first axial flow fan blades and the second axial flow fan blades, whose rotation direction is the same as the rotation direction.

[0112] The first and second axial flow fan blades, which rotate in the same direction as the rotation, can have a large air volume, which can meet the air outlet requirements of the air conditioner 100 and help reduce the energy consumption of the air conditioner 100.

[0113] This disclosure does not limit the number of curved air duct sections 20. There can be one or more curved air duct sections 20, as long as the usage requirements of the air conditioner 100 are met. As one embodiment of this disclosure, such as... Figures 2 to 4 As shown, there are multiple arc-shaped air duct sections 20, which are arranged side by side, that is, multiple arc-shaped air duct sections 20 are set independently, and each arc-shaped air duct section 20 is equipped with at least one fan blade 50 as described above.

[0114] By setting multiple independent arc-shaped air duct sections 20 within the air conditioner 100, and setting at least one fan blade 50 within each arc-shaped air duct section 20, the air conditioner 100 can adjust the wind speed and flow rate of each arc-shaped air duct section 20 according to different usage requirements, and can avoid mutual interference of airflows and improve the uniformity of air supply.

[0115] Furthermore, even if some of the multiple curved air duct sections 20 malfunction during use, the remaining curved air duct sections 20 can still deliver air normally, which not only helps to improve the stability and reliability of the air conditioner 100, but also facilitates the inspection and maintenance of the air conditioner 100.

[0116] In an embodiment where the air conditioner 100 includes multiple arc-shaped air duct sections 20, and each arc-shaped air duct section 20 is provided with at least one fan blade 50, during the operation of the air conditioner 100, the fan blades 50 in the multiple arc-shaped air duct sections 20 can rotate simultaneously, or they can rotate partially while the other part does not rotate. This disclosure does not limit this.

[0117] As one embodiment of this disclosure, the fan blades 50 within the plurality of arc-shaped air duct sections 20 are configured to rotate forward or reverse simultaneously during operation.

[0118] In other words, during the operation of the air conditioner 100, the fan blades 50 in multiple arc-shaped air duct sections 20 will rotate simultaneously, and each arc-shaped air duct section 20 can generate airflow. This helps to ensure the overall air volume of the air conditioner 100 and avoids the situation where the air volume of the air conditioner 100 is too small and cannot meet the user's usage requirements.

[0119] In some possible implementations, the plurality of arc-shaped air duct segments 20 include at least one first arc-shaped air duct segment and at least one second arc-shaped air duct segment. The fan blades 50 in each first arc-shaped air duct segment have the same rotation direction, that is, the blades in each first arc-shaped air duct segment have the same installation angle. The fan blades 50 in each second arc-shaped air duct segment have the same rotation direction, that is, the blades in each second arc-shaped air duct segment have the same installation angle. The fan blades 50 in the first arc-shaped air duct segment have the opposite rotation direction to the fan blades 50 in the second arc-shaped air duct segment, that is, the blades in the first arc-shaped air duct segment have the opposite installation angle. For example, the blades in the first arc-shaped air duct segment can be left-handed blades, and the blades in the second arc-shaped air duct segment can be right-handed blades.

[0120] In other words, the air conditioner 100 is equipped with multiple fan blades 50 with different rotation directions (installation angles). Thus, during the operation of the air conditioner 100, the first arc-shaped air duct section and the second arc-shaped air duct section can generate different air volumes in different air outlet directions. The first arc-shaped air duct section and the second arc-shaped air duct section cooperate with each other, and the air volumes are superimposed, so that when the air conditioner 100 emits air from any air outlet (i.e., the first air outlet 30 and the second air outlet 40), it has the same or similar air volume. That is, the air conditioner 100 can have the same air volume when supplying air in both forward and reverse directions, which can meet the requirement of equal air volume when the air conditioner 100 supplies air in reversible directions.

[0121] The number of curved air duct sections 20 can be any appropriate number, and this disclosure does not limit it. In some possible embodiments, the number of curved air duct sections 20 is 2N, where N is a positive integer.

[0122] In other words, the number of arc-shaped air duct sections 20 is a positive integer multiple of 2. The number of arc-shaped air duct sections 20 that are positive integer multiples of 2 can allow the number of blades rotating in opposite directions to be consistent, which is beneficial to achieving the same air volume for the air conditioner when supplying air in both the forward and reverse directions.

[0123] In some possible implementations, the 2N arc-shaped air duct segments 20 include N first arc-shaped air duct segments, in which the fan blades 50 have the same rotation direction, and the 2N arc-shaped air duct segments include N second arc-shaped air duct segments, in which the fan blades 50 have the same rotation direction, wherein the rotation direction of the fan blades 50 in the first arc-shaped air duct segments is opposite to the rotation direction of the fan blades 50 in the second arc-shaped air duct segments.

[0124] Thus, the number of the first arc-shaped air duct section and the second arc-shaped air duct section with different rotation directions of the fan blades 50 are equal, which allows the air conditioner 100 to be equipped with the same number of fan blades 50 with different rotation directions (installation angles of the blades). In this way, the air conditioner 100 can have the same or similar air volume when it vents from any air outlet (i.e., the first air outlet 30 and the second air outlet 40). That is, the air conditioner 100 can have the same air volume when it vents air in both forward and reverse directions, which can meet the requirement that the air volume of the air conditioner 100 is equal when it vents air in reversible directions.

[0125] In embodiments where multiple fan blades 50 rotate in different directions, i.e., the blades of multiple fan blades 50 have different installation angles, in order to enable multiple fan blades 50 to have the same air volume when they have the same blowing direction, in some possible embodiments, the number of fan blades 50 in the same arc-shaped air duct section 20 is multiple, the multiple fan blades 50 rotate in the same direction in the arc-shaped air duct section 20, each fan blade 50 is set to a first rotational speed when the rotational direction is the same as its own rotational direction, and each fan blade 50 is set to a second rotational speed when the rotational direction is opposite to its own rotational direction, and the first rotational speed is less than the second rotational speed.

[0126] For example, if some of the fan blades 50 rotate in a positive (right-hand) direction and another part rotates in a negative (left-hand) direction, when air is supplied in the positive direction (the fan blades 50 rotate clockwise), the rotation speed of the fan blades 50 with a positive (right-hand) direction can be lower than that of the fan blades 50 with a negative (left-hand) direction. In this way, whether the air is supplied from the first air outlet 30 or the second air outlet 40, the fan blades 50 with a positive (right-hand) direction and the fan blades 50 with a negative (left-hand) direction can have the same air volume. This allows the air conditioner 100 to have the same air volume when supplying air in different directions, thus meeting the requirements of reversible air supply of the air conditioner 100.

[0127] In the air conditioner 100 provided in this disclosure, the fan blades 50 can be arranged in any suitable manner within the arc-shaped air duct section 20 of the air conditioner 100, and this disclosure does not limit this arrangement.

[0128] In some possible implementations, such as Figure 5 As shown, the plane of rotation of the wind blade 50 has an angle γ with the horizontal plane, and γ satisfies: 0°≤γ≤90°.

[0129] In other words, the fan blades 50 can be arranged vertically relative to the horizontal plane within the curved air duct section 20, or they can be arranged at an angle relative to the horizontal plane within the curved air duct section 20. The arrangement of the fan blades 50 within the curved air duct section 20 is flexible and can be adjusted according to usage requirements.

[0130] In some possible implementations, such as Figure 3 and Figure 5As shown, the arc-shaped air duct section includes a first section 21 and a second section 22. The front and rear ends of the first section 21 are arranged along the front-rear direction of the air conditioner 100. The front end of the first section 21 is used to connect with the first air outlet 30. The upper end of the second section 22 is connected with the rear end of the first section 21, and the lower end of the second section 22 is used to connect with the second air outlet 40. The fan blade 50 is set in the first section 21 or at the position where the first section 21 and the second section 22 are connected. The angle γ between the rotation plane of the fan blade 50 and the horizontal plane is 90°, that is, the fan blade 50 is arranged vertically in the arc-shaped air duct section 20. Alternatively, the fan blade 50 is set in the second section 22, and the angle γ between the rotation plane of the fan blade 50 and the horizontal plane satisfies 0°≤γ<90°, that is, the fan blade 50 is arranged inclined or horizontally in the arc-shaped air duct section 20.

[0131] In other words, the axial flow fan blade 51 can be arranged vertically in the first section 21 of the arc-shaped air duct section 20, or it can be arranged obliquely or horizontally in the second section 22 of the arc-shaped air duct section 20. The fan blade 50 has a high degree of flexibility in its arrangement within the arc-shaped air duct section 20.

[0132] In some possible implementations, the rotation center of the fan blade 50 is located at the center of the cross-section of the arc-shaped duct section 20.

[0133] Since the rotation center of the fan blade 50 is located at the center of the cross-section of the arc-shaped air duct section 20, the distance between the blades of the fan blade 50 and the air duct wall of the arc-shaped air duct section 20 remains consistent during the rotation of the fan blade 50. This not only helps to make the air flow in the arc-shaped air duct section 20 more stable and uniform, but also reduces the generation of turbulence in the arc-shaped air duct section 20, thereby improving the quality of air delivery.

[0134] In order to achieve heat exchange in the air conditioner 100 during the air supply process, in some possible implementations, such as Figure 1 as well as Figures 3 to 5 As shown, the air conditioner 100 also includes a housing 70 and a heat exchanger assembly 80. The air conditioning duct 10 is disposed inside the housing 70. A partition 71 is disposed inside the housing 70, which divides the air conditioning duct 10 into a connecting duct section 90 and at least one arc-shaped duct section 20. The partition 71 is provided with a connecting hole 72 for connecting the connecting duct section 90 and the arc-shaped duct section 20. A first air outlet 30 is disposed on one side of the housing 70, and a second air outlet 40 is disposed on the other side of the housing 70. The heat exchanger assembly 80 is disposed in the connecting duct section 90.

[0135] The connecting hole 72 enables the connection between the air duct section 90 and the arc-shaped air duct section 20, thereby allowing air to flow within the air conditioner 100.

[0136] In addition, the heat exchanger assembly 80 can exchange heat with the air during the operation of the air conditioner 100, thereby heating and cooling the air, and thus heating and cooling the room where the air conditioner 100 is installed.

[0137] This disclosure does not limit the specific type of the heat exchanger assembly 80. As one embodiment of this disclosure, the heat exchanger assembly 80 may include an evaporator and an electric auxiliary heating device.

[0138] Evaporators cool the air, thus lowering the indoor temperature, while electric auxiliary heating devices heat the air, thus raising the indoor temperature.

[0139] In some possible implementations, the air conditioner 100 also includes a housing 70, a first air vent 30 disposed on a side panel 73 of the housing 70, and a second air vent 40 disposed on a bottom panel 74 of the housing 70.

[0140] In this way, when there is a need for cooling indoors, the air can be discharged from the first air outlet 30 at a higher height. In this way, the cold air blown out by the air conditioner 100 can slowly flow from the upper part of the room to the lower part under its own gravity (sky curtain wind). This can quickly exchange heat with the less dense hot air to achieve rapid cooling of the room, and can also cover the human body from top to bottom in the form of shower wind, improving the user's comfort.

[0141] When there is a heating demand indoors, the air conditioner 100 can also blow air out from the lower second air vent 40. In this way, the hot air blown out by the air conditioner 100 can rise slowly due to its low density (carpet wind), which can quickly exchange heat with the higher density cold air and cover the human body from bottom to top in the form of shower wind, improving the user's comfort.

[0142] In some possible implementations, such as Figure 5 As shown, the partition 71 divides the cavity of the housing 70 into a first chamber 75 and a second chamber 76. The first chamber 75 is configured to connect to the air duct section 90. The air conditioner 100 includes at least one arc-shaped air duct 110. At least one arc-shaped air duct 110 is disposed in the second chamber 76. The interior of each arc-shaped air duct 110 defines a corresponding arc-shaped air duct section 20.

[0143] The curved duct 110 can guide the air and prevent the air from spreading and leaking randomly within the air conditioner 100. This helps to reduce energy loss during the operation of the air conditioner 100 and improve the air delivery efficiency of the air conditioner 100.

[0144] In addition, the connecting duct section 90 and the arc-shaped duct 110, which are separated by the partition 71, are less likely to interfere with each other during use, and are easier to inspect and maintain.

[0145] In embodiments where the air conditioner 100 includes a heat exchanger assembly 80, in order to enable the air conditioner 100 to achieve both good heat exchange performance and a large air volume, in some possible embodiments, such as... Figure 5 As shown, the first air vent 30 is located on the front side of the housing 70. Along the front-back direction of the housing 70, the length of the air duct is L0, the length of the connecting air duct section 90 is L1, the minimum distance from the end of the arc-shaped air duct section 20 connected to the connecting hole 72 to the second air vent 40 is L2, and the length of the arc-shaped air duct section 20 is L3. L0 and L1 satisfy: 0.3 < L1 / L0 < 0.35.

[0146] Since the ratio of the length of the connecting duct section 90 to the length of the duct is L1 / L0 > 0.3, the connecting duct section 90 can have a relatively long length. A longer connecting duct section 90 can accommodate a larger heat exchanger assembly 80, thereby enabling the air conditioner 100 to have a better heat exchange effect. This effectively avoids the situation where the connecting duct section 90 is too short, leaving too little space for the front and rear of the heat exchanger assembly 80, which would limit the size (area) of the heat exchanger assembly 80 and result in poor heat exchange effect.

[0147] In addition, since the ratio of the length of the connecting duct section 90 to the length of the duct is L1 / L0 < 0.35, the length of the connecting duct section 90 will not be too large. This effectively avoids the situation where the length of the connecting duct section 90 is too large, resulting in a smaller length of the arc-shaped duct section 20. The smaller arc-shaped duct section 20 has a smaller space and a shorter air supply path, which would lead to a decrease in air volume.

[0148] In some possible implementations, such as Figure 5 As shown, L2 and L3 satisfy: 0.4 < L2 / L3 < 0.5.

[0149] The minimum distance from the end of the arc-shaped air duct section 20 connected to the connecting hole 72 to the second air outlet 40 refers to the straight-line distance between the end point of the arc-shaped air duct section 20 connected to the connecting hole 72 and the end point of the second air outlet 40 on the side closer to the connecting hole 72.

[0150] Since the minimum distance from the end of the arc-shaped air duct section 20 connected to the connecting hole 72 to the second air outlet 40 satisfies L2 / L3>0.4 with the lengths L2 and L3 of the arc-shaped air duct section 20, a certain distance can be maintained between the fan blade 50 installed in the arc-shaped air duct section 20 and the connecting hole 72. This effectively avoids the situation where the distance between the fan blade 50 and the connecting hole 72 is too short, the length of the arc-shaped air duct section 20 located on the side of the fan blade 50 near the connecting hole 72 is too short, the airflow integration effect is poor, the aerodynamic loss is large, and the heat exchange efficiency of the air conditioner 100 is affected.

[0151] Furthermore, since the minimum distance from the end of the arc-shaped duct section 20 connected to the connecting hole 72 to the second air outlet 40 satisfies L2 / L3 < 0.5 with respect to the lengths L2 and L3 of the arc-shaped duct section 20, the arc-shaped duct section 20 located at the rear end of the fan blade 50 (i.e., the end furthest from the connecting hole 72) can also have a certain length. In this way, the second air outlet 40 can be allowed to have a larger diameter, effectively avoiding the situation where the arc-shaped duct section 20 located at the rear end of the fan blade 50 (i.e., the end furthest from the connecting hole 72) is too short, resulting in a smaller diameter of the second air outlet 40, reduced air intake and exhaust volume, and affecting the heat exchange efficiency of the air conditioner 100.

[0152] To further improve the air delivery effect of the fan blade 50, in some possible implementations, such as Figure 5 As shown, at least one fan blade 50 includes an axial fan blade 51, which is positioned at the location with the smallest flow area in the arc-shaped air duct section 20.

[0153] By placing the axial flow fan blade 51 at the minimum flow area of ​​the arc-shaped duct section 20, the working efficiency of the axial flow fan blade 51 can be improved, the air volume can be increased, and the generation of turbulence and eddies can be reduced.

[0154] In some possible implementations, such as Figure 4 and Figure 5 As shown, the air conditioner 100 also includes a housing 70. The cross-section of the arc-shaped air duct section 20 is circular. The inner diameter of the end of the arc-shaped air duct section 20 connected to the first air outlet 30 is R1. The inner diameter of the position where the fan blade 50 is located in the arc-shaped air duct section 20 is R2. The diameter of the end of the arc-shaped air duct section 20 connected to the second air outlet 40 is R3. The second air outlet 40 is located on the upper or lower side of the housing 70. In the vertical direction of the housing 70, the dimension of the housing 70 is H0. R1, R2 and R3 satisfy: R2 < R1, R2 < R3.

[0155] In other words, the size of the position where the arc-shaped air duct section 20 connects to the first air outlet 30 and the second air outlet 40 is relatively large, and the fan blade 50 is set in a position with a smaller flow area within the arc-shaped air duct section 20. This is beneficial to improve the working efficiency of the fan blade 50, increase the air supply volume, and also reduce the generation of turbulence and eddies.

[0156] In some possible implementations, such as Figure 4 and Figure 5 As shown, R1 and H0 satisfy: 0.9 < R1 / H0 < 1.

[0157] Since the vertical dimension H0 of the housing 70 and the diameter R1 of the end of the arc-shaped air duct section 20 connected to the first air outlet 30 satisfy R1 / H0>0.9, the end of the arc-shaped air duct section 20 connected to the first air outlet 30 can have a large diameter. In the embodiment where the heat exchanger assembly 80 is disposed between the arc-shaped air duct section 20 and the first air outlet 30, the air flowing through the heat exchanger assembly 80 can have a large contact area with the heat exchanger, which is beneficial to improving the heat exchange effect of the air conditioner 100.

[0158] Furthermore, since the vertical dimension H0 of the housing 70 and the diameter R1 of the end of the arc-shaped air duct section 20 connected to the first air outlet 30 satisfy R1 / H0<1, the dimension of the end of the arc-shaped air duct section 20 connected to the first air outlet 30 will not be greater than the dimension of the housing 70. This effectively avoids the situation where the dimension of the first section 21 connected to the arc-shaped air duct section 20 and the first air outlet 30 is too large and cannot be arranged inside the housing 70.

[0159] In some possible implementations, such as Figures 2 to 4 As shown, the air conditioner 100 includes two arc-shaped air duct sections 20, which are arranged side by side, that is, the two arc-shaped air duct sections 20 are arranged independently. The air conditioner 100 also includes a heat exchanger assembly 80, which extends along the side-by-side direction of the two arc-shaped air duct sections 20 and is arranged opposite to the two arc-shaped air ducts. In the side-by-side direction of the two arc-shaped air duct sections 20, the length of the heat exchanger assembly 80 is B1, and the distance between the two arc-shaped air duct sections 20 is B2. B1 and B2 satisfy: 0.12 < B2 / B1 < 0.2.

[0160] Since the length B1 of the heat exchanger assembly 80 and the distance B2 between the two arc-shaped air duct sections 20 satisfy 0.12 < B2 / B1 < 0.2 in the parallel direction of the two arc-shaped air duct sections 20, there can be a certain distance between the two arc-shaped air duct sections 20, and the distance will not be too large. In this way, the outer area of ​​the two arc-shaped air duct sections 20 can have a higher wind speed, which is beneficial to improving the heat exchange effect of the air conditioner 100. It can effectively avoid the situation where the distance between the two arc-shaped air duct sections 20 is too small or too large, resulting in a low wind speed in the outer area of ​​the two arc-shaped air duct sections 20, which leads to poor heat exchange efficiency of the air in the air conditioner 100.

[0161] The air conditioner 100 provided in this disclosure can be of any suitable type, and this disclosure does not limit it. As one embodiment of this disclosure, the air conditioner 100 is a ducted air conditioner.

[0162] The ducted air conditioner 100 can work with the outdoor unit through ducts to achieve efficient indoor air supply and temperature balance, and has a high aesthetic appeal and is easy to install in the user's home.

[0163] As another embodiment of this disclosure, the air conditioner 100 may also be a wall-mounted unit or a floor-standing unit installed indoors, and this disclosure does not limit it in this way.

[0164] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0165] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0166] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An air conditioner, characterized in that, include: An air conditioning duct includes a first air outlet, a second air outlet, and at least one arc-shaped duct section. The two ends of the arc-shaped duct section are respectively connected to the first air outlet and the second air outlet. The air outlets of the first air outlet and the second air outlet have different air outlet directions. At least one fan blade is rotatably disposed within the arc-shaped air duct section, the at least one fan blade being used to draw air from the first air vent or the second air vent, so that the air conditioner can selectively discharge air from one of the first air vent and the second air vent.

2. The air conditioner according to claim 1, characterized in that, The at least one fan blade includes an axial fan blade, and the air conditioner further includes a drive member for driving the axial fan blade to rotate forward or backward, so that the air conditioner can selectively discharge air from one of the first air outlet and the second air outlet.

3. The air conditioner according to claim 1, characterized in that, The at least one fan blade includes a first axial flow fan blade and a second axial flow fan blade; The first axial flow fan blade and the second axial flow fan blade are rotatably disposed within the same arc-shaped air duct section and are arranged at intervals along the axial direction of the arc-shaped air duct section; The first axial fan blade and the second axial fan blade rotate synchronously in either the forward or reverse direction, so that the air conditioner can selectively discharge air from either the first air outlet or the second air outlet; or One of the first axial fan blades and the second axial fan blades rotates selectively so that the air conditioner can selectively discharge air from one of the first air outlet and the second air outlet.

4. The air conditioner according to claim 3, characterized in that, The first and second axial flow fan blades rotate in the same direction; when the first and second axial flow fan blades rotate synchronously, their rotation directions are the same; or, The first and second axial flow fan blades rotate in opposite directions; when the first and second axial flow fan blades rotate synchronously, their rotation directions are the same; or, The air conditioner is configured to selectively activate one of the first and second axial flow fan blades, whose rotation direction is the same as the rotation direction.

5. The air conditioner according to claim 1, characterized in that, The number of the arc-shaped air duct segments is multiple, and the multiple arc-shaped air duct segments are arranged side by side.

6. The air conditioner according to claim 5, characterized in that, The fan blades in the multiple arc-shaped air duct sections are configured to rotate forward or reverse simultaneously during operation.

7. The air conditioner according to claim 5, characterized in that, The plurality of said arc-shaped air duct segments include at least one first arc-shaped air duct segment and at least one second arc-shaped air duct segment; The direction of rotation of the fan blades is the same in each of the first arc-shaped air duct sections; The direction of rotation of the blades in each of the second arc-shaped air duct sections is the same; The direction of rotation of the blades in the first arc-shaped air duct section is opposite to that of the blades in the second arc-shaped air duct section.

8. The air conditioner according to claim 5, characterized in that, The number of the arc-shaped air duct sections is 2N, where N is a positive integer.

9. The air conditioner according to claim 8, characterized in that, The 2N arc-shaped air duct segments include N first arc-shaped air duct segments, and the air blades in the N first arc-shaped air duct segments rotate in the same direction; The 2N arc-shaped air duct segments include N second arc-shaped air duct segments, and the air blades in the N second arc-shaped air duct segments rotate in the same direction; The direction of rotation of the blades in the first arc-shaped air duct section is opposite to that of the blades in the second arc-shaped air duct section.

10. The air conditioner according to claim 1, characterized in that, The number of fan blades in the same arc-shaped air duct section is multiple, and the multiple fan blades rotate in the same direction in the arc-shaped air duct section; The rotational speed at which each of the aforementioned blades rotates in the same direction as its own rotational direction is the first rotational speed; Each of the aforementioned fan blades is configured to rotate at a second rotational speed when its rotational direction is opposite to its own rotational direction; The first rotational speed is less than the second rotational speed.

11. The air conditioner according to any one of claims 1-10, characterized in that, The rotation plane of the wind blade has an angle γ with the horizontal plane, and the γ satisfies: 0°≤γ≤90°.

12. The air conditioner according to claim 11, characterized in that, The arc-shaped air duct section includes a first section and a second section; The front and rear ends of the first segment are arranged along the front-rear direction of the air conditioner, and the front end of the first segment is used to connect to the first air outlet. The upper end of the second segment is connected to the rear end of the first segment, and the lower end of the second segment is used to connect to the second air outlet. Wherein, the fan blade is disposed within the first section or at the position where the first section and the second section are connected, and the angle γ between the rotation plane of the fan blade and the horizontal plane is 90°; or, The fan blade is disposed in the second section, and the angle γ between the rotation plane of the fan blade and the horizontal plane satisfies 0°≤γ<90°.

13. The air conditioner according to any one of claims 1-10, characterized in that, The rotation center of the fan blade is located at the center of the cross-section of the arc-shaped air duct section.

14. The air conditioner according to any one of claims 1-10, characterized in that, The air conditioner also includes a housing and a heat exchanger assembly, and the air conditioning duct is disposed inside the housing; The housing is provided with a partition, which divides the air conditioning duct into a connecting duct section and at least one arc-shaped duct section. The partition is provided with a connecting hole for connecting the connecting duct section and the arc-shaped duct section. The first air vent is located on one side of the housing, and the second air vent is located on the other side of the housing; The heat exchanger assembly is located in the connecting duct section.

15. The air conditioner according to claim 14, characterized in that, The first air vent is located on the side panel of the housing, and the second air vent is located on the bottom panel of the housing.

16. The air conditioner according to claim 14, characterized in that, The partition divides the cavity of the housing into a first chamber and a second chamber, wherein the first chamber is configured as the connecting air duct section; The air conditioner includes at least one arc-shaped air duct, which is disposed in the second chamber, and the interior of each arc-shaped air duct defines a corresponding arc-shaped air duct segment.

17. The air conditioner according to claim 14, characterized in that, The first air vent is located on the front side of the housing. Along the front-back direction of the housing, the length of the air duct is L0, the length of the connecting air duct section is L1, the minimum distance from the end of the arc-shaped air duct section connected to the connecting hole to the second air vent is L2, and the length of the arc-shaped air duct section is L3. The L0 and L1 satisfy: 0.3 < L1 / L0 < 0.35; and / or, The L2 and L3 satisfy the condition: 0.4 < L2 / L3 < 0.

5.

18. The air conditioner according to any one of claims 1-10, characterized in that, The at least one fan blade includes an axial flow fan blade, which is positioned at the location with the smallest flow area in the arc-shaped air duct section.

19. The air conditioner according to any one of claims 1-10, characterized in that, The air conditioner also includes a housing, and the cross-section of the arc-shaped air duct section is circular; The inner diameter of the end of the arc-shaped air duct section connected to the first air outlet is R1, the inner diameter of the position where the fan blade is located in the arc-shaped air duct section is R2, the diameter of the end of the arc-shaped air duct section connected to the second air outlet is R3, the second air outlet is located on the upper or lower side of the box, and the dimension of the box in the vertical direction is H0. R1, R2, and R3 satisfy: R2 < R1, R2 < R3; and / or, R1 and H0 satisfy the condition: 0.9 < R1 / H0 < 1.

20. The air conditioner according to any one of claims 1-10, characterized in that, The air conditioner includes two arc-shaped air duct sections, which are arranged side by side. The air conditioner also includes a heat exchanger assembly, which extends along the parallel direction of the two arc-shaped air duct sections and is arranged opposite to the two arc-shaped air ducts. In the parallel direction of the two arc-shaped air duct sections, the length of the heat exchanger assembly is B1, and the distance between the two arc-shaped air duct sections is B2, wherein B1 and B2 satisfy: 0.12 < B2 / B1 < 0.

2.

21. The air conditioner according to any one of claims 1-10, characterized in that, The air conditioner in question is a ducted air conditioner.

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