Air conditioner and its indoor unit, air outlet control method, air conditioning controller and medium

Abstract

This invention discloses an air conditioner and its indoor unit, an air outlet control method, an air conditioning controller, and a medium. The indoor unit of the air conditioner includes a casing, a fan assembly, and an airflow control device. An air duct is formed inside the casing. The fan assembly is rotatably disposed within the air duct to deliver air. The airflow control device is disposed within the air duct and isolating the air inlet and outlet of the air duct. The airflow control device is provided with a selectable air guide duct. When in the open state, the air guide duct connects the air inlet and outlet. The method includes: determining the air delivery mode; and controlling the open state of the fan assembly and the air guide duct according to the air delivery mode, so that the indoor unit can deliver stable continuous air, intermittent pulsed air, or windless air. Therefore, multiple air delivery modes can be achieved to meet differentiated heating needs, thereby effectively improving product comfort.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to an air conditioner and its air outlet control method, an air conditioner controller, an indoor unit of the air conditioner, and a computer-readable storage medium. Background Technology

[0002] For people in the same space, differences in age, gender, body type, and physiological parameters lead to varying heat requirements from air conditioners. However, current air conditioners employ constant temperature control, which is largely based on the steady-state thermal comfort PMV (Predicted Mean Vote) theory. Correspondingly, air conditioning technology strives to create a steady, uniform, and constant indoor thermal environment, resulting in a monotonous environment that fails to meet the diverse needs of users and leads to poor product comfort. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this invention is to provide an airflow control method for an air conditioner that can achieve multiple airflow modes to meet differentiated heating needs, thereby effectively improving product comfort.

[0004] The second objective of this invention is to provide an air conditioner controller.

[0005] A third objective of this invention is to provide a computer-readable storage medium.

[0006] The fourth objective of this invention is to provide an indoor unit for an air conditioner.

[0007] The fifth objective of this invention is to provide an air conditioner.

[0008] To achieve the above objectives, a first aspect of the present invention provides an air outlet control method for an air conditioner. The indoor unit of the air conditioner includes a casing, a fan assembly, and an airflow control device. An air duct is formed inside the casing. The fan assembly is rotatably disposed within the air duct to deliver air. The airflow control device is disposed within the air duct and isolating the air inlet and outlet of the air duct. The airflow control device is provided with a selectable air guide duct. When the air guide duct is in the open state, it connects the air inlet and the air outlet. The method includes: determining an air delivery mode; and controlling the open state of the fan assembly and the air guide duct according to the air delivery mode, so that the indoor unit delivers stable and continuous air, intermittent pulsed air, or air without a wind sensation.

[0009] According to an embodiment of the present invention, the air outlet control method for an air conditioner includes an indoor unit with a casing, a fan assembly, and a controllable airflow control device. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0010] According to one embodiment of the present invention, determining an air supply mode includes: acquiring a first temperature difference between the indoor ambient temperature and a set temperature, and acquiring a second temperature difference between the human body's perceived temperature and a preset comfort temperature; and determining an air supply mode based on the first temperature difference and the second temperature difference.

[0011] According to one embodiment of the present invention, the air supply mode includes a stable continuous air supply mode, an intermittent pulsed air supply mode, and a windless air supply mode. Determining the air supply mode based on a first temperature difference and a second temperature difference includes: determining the air supply mode as a stable continuous air supply mode when the first temperature difference is greater than a first preset temperature threshold; and determining the air supply mode as an intermittent pulsed air supply mode if the second temperature difference is greater than a second preset temperature threshold when the first temperature difference is less than or equal to the first preset temperature threshold, otherwise determining the air supply mode as a windless air supply mode.

[0012] According to one embodiment of the present invention, controlling the conduction state of the impeller assembly and the air duct according to the air supply mode includes: when the air supply mode is a stable continuous air supply mode, controlling the air duct to keep the air inlet and air outlet fully connected, and obtaining the distance between the human body and the indoor unit; and controlling the rotational speed of the impeller assembly according to the distance.

[0013] According to one embodiment of the present invention, the wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the rotational speed of the wind turbine assembly according to the distance includes: when the distance is greater than a preset value, controlling the first wind turbine and the second wind turbine to rotate simultaneously, and controlling the rotational speed of the first wind turbine and the second wind turbine to be within a first rotational speed range; when the distance is less than or equal to the preset value, controlling the first wind turbine to rotate, and controlling the rotational speed of the first wind turbine to be within a second rotational speed range.

[0014] According to one embodiment of the present invention, controlling the conduction state of the impeller assembly and the air duct according to the air supply mode includes: when the air supply mode is an intermittent pulsed air supply mode, controlling the air duct to intermittently connect the air inlet and the air outlet according to a first cutoff frequency, and obtaining the distance between the human body and the indoor unit; and controlling the rotational speed of the impeller assembly according to the distance.

[0015] According to one embodiment of the present invention, the wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the rotational speed of the wind turbine assembly according to the distance includes: when the distance is greater than a preset value, controlling the first wind turbine and the second wind turbine to rotate simultaneously, and controlling the rotational speed of the first wind turbine and the second wind turbine to be in a third rotational speed range; when the distance is less than or equal to the preset value, controlling the first wind turbine to rotate, and controlling the rotational speed of the first wind turbine to be in a fourth rotational speed range.

[0016] According to one embodiment of the present invention, the wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the conduction state of the wind turbine assembly and the air guide duct according to the air supply mode includes: when the air supply mode is a windless air supply mode, controlling the air guide duct to intermittently connect the air inlet and the air outlet according to a second cutoff frequency, controlling the first wind turbine and the second wind turbine to rotate simultaneously, and controlling the rotation speed of the first wind turbine and the second wind turbine to be within a fifth rotation speed range.

[0017] To achieve the above objectives, a second aspect of the present invention provides an air conditioner controller, including a memory, a processor, and an air conditioner air outlet control program stored in the memory and executable on the processor. When the processor executes the air conditioner air outlet control program, it implements the above-mentioned air conditioner air outlet control method.

[0018] According to an embodiment of the present invention, the air conditioner controller includes an indoor unit with a casing, a fan assembly, and a selectable airflow control device. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0019] To achieve the above objectives, a third aspect of the present invention provides a computer-readable storage medium storing an air outlet control program for an air conditioner, which, when executed by a processor, implements the air outlet control method for the air conditioner described above.

[0020] According to a computer-readable storage medium of an embodiment of the present invention, an indoor unit of an air conditioner includes a casing, a fan assembly, and an airflow control device that allows selective conduction. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0021] To achieve the above objectives, a fourth aspect of the present invention provides an indoor unit of an air conditioner, comprising: a casing, a fan assembly, and an airflow control device. An air duct is formed within the casing. The fan assembly is rotatably disposed within the air duct to deliver air. The airflow control device is disposed within the air duct and isolating the air inlet and outlet of the air duct. The airflow control device is provided with a selectable air guide duct, which connects the air inlet and outlet when in the open state. A controller is used to determine the air delivery mode and control the open state of the fan assembly and the air guide duct according to the air delivery mode, enabling the indoor unit to deliver stable continuous air, intermittent pulsed air, or windless air.

[0022] According to an embodiment of the present invention, the indoor unit of an air conditioner includes a casing, a fan assembly, and an airflow control device that allows for selective airflow control. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0023] To achieve the above objectives, a fifth aspect of the present invention provides an air conditioner including the indoor unit of the air conditioner described above.

[0024] According to an embodiment of the present invention, the air conditioner includes an indoor unit with a casing, a fan assembly, and an airflow control device that allows for selective airflow control. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is an overall structural diagram of an air conditioner according to an embodiment of the present invention.

[0027] Figure 2 This is an overall structural diagram of the wind turbine assembly according to an embodiment of the present invention.

[0028] Figure 3 This is an overall structural diagram of the wind turbine assembly according to an embodiment of the present invention.

[0029] Figure 4 This is an exploded view of a wind turbine assembly according to an embodiment of the present invention.

[0030] Figure 5This is an exploded view of a wind turbine assembly according to an embodiment of the present invention.

[0031] Figure 6 This is a cross-sectional view of a wind turbine assembly according to an embodiment of the present invention.

[0032] Figure 7 This is a structural diagram of the airflow control device when the first and second flow ports are completely overlapped according to an embodiment of the present invention.

[0033] Figure 8 This is a structural diagram of the airflow control device when the first and second flow ports are completely overlapped according to an embodiment of the present invention.

[0034] Figure 9 This is a structural diagram of an airflow control device when the first and second flow ports partially overlap according to an embodiment of the present invention.

[0035] Figure 10 This is a structural diagram of an airflow control device when the first and second flow ports partially overlap according to an embodiment of the present invention.

[0036] Figure 11 This is a flowchart of an air outlet control method for an air conditioner according to an embodiment of the present invention.

[0037] Figure 12 This is a flowchart illustrating the determination of an air supply mode according to an embodiment of the present invention.

[0038] Figure 13 This is a flowchart illustrating the implementation of an air supply mode according to an embodiment of the present invention.

[0039] Figure 14 This is a structural block diagram of an air conditioner controller according to an embodiment of the present invention.

[0040] Figure 15 This is a structural block diagram of an air conditioner according to an embodiment of the present invention.

[0041] Figure label:

[0042] Air conditioner 1; Fan assembly 10;

[0043] Casing 11; Air duct 11a; Air inlet 11b; Air outlet 11c; Housing body 111; Flared section 112; End plate 113; Drain hole 113a;

[0044] First wind turbine 121; Second wind turbine 122;

[0045] Airflow control device 13; inner cylinder 131; first flow port 131a; inner cylinder bottom plate 1311; inner cylinder side plate 1312; outer cylinder 132; second flow port 132a; outer cylinder bottom plate 1321; outer cylinder side plate 1322; flange 1322a; rotary drum drive device 133; drive mounting plate 1331; rotary drum motor 1332; through hole 1331a; air outlet 1331b;

[0046] Convolution shell 14; convolution channel 14a; rectifier 15. Detailed Implementation

[0047] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout the drawings.

[0048] The following description, with reference to the accompanying drawings, describes an air conditioner and its indoor unit, an air outlet control method, an air conditioner controller, and a medium provided in the embodiments of the present invention.

[0049] First, the indoor unit of the air conditioner according to an embodiment of the present invention will be described in detail below.

[0050] Figure 1 An indoor unit 1 of an air conditioner is provided in an embodiment of this application. The indoor unit 1 of the air conditioner includes a fan assembly 10, as shown in the reference. Figure 6 As shown, the fan assembly 10 includes a housing 11, a rotor assembly, and an airflow control device 13. An air duct 11a is formed within the housing 11. The rotor assembly is rotatably disposed within the air duct 11a to deliver air. The airflow control device 13 is disposed within the air duct 11a and is positioned between the air inlet 11b and the air outlet 11c of the air duct 11a. The airflow control device 13 is equipped with a selectable air guide duct, which connects the air inlet 11b and the air outlet 11c when in the open state. Specifically, external airflow enters the air duct 11a of the fan assembly 10 through the air inlet 11b. The rotor is disposed within the air duct 11a and is adapted to rotate to agitate the airflow within the air duct 11a, thus creating wind. In some embodiments, the airflow control device 13 is disposed in the air duct 11a and located between the impeller and the air outlet 11c. The airflow control device 13 has an open state and an obstruction state. When the airflow control device 13 is in the open state, the external airflow enters the air duct 11a through the air inlet 11b. The airflow is agitated by the impeller and forms wind. The wind reaches the air outlet 11c of the fan assembly 10 through the air guide of the airflow control device 13 and is blown out. When the airflow control device 13 is in the obstruction state, the wind generated by the impeller is blocked between the impeller and the airflow control device 13. The wind cannot pass through the air guide. The airflow control device 13 can selectively switch between the open state and the obstruction state.

[0051] When the airflow control device 13 is in the conducting state for a long time, the air inlet 11b, air duct 11a, air guide duct and air outlet 11c remain connected, and the fan assembly 10 can continuously and stably deliver air with a continuous and stable air volume. When the airflow control device 13 continuously switches between the conducting state and the blocking state, the air guide duct is intermittently opened and closed, so that the fan assembly 10 delivers air intermittently. At this time, the fan assembly 10 can realize intermittent pulse air delivery. By changing the opening and closing of the air guide duct, it is possible to switch between the above-mentioned air delivery conditions.

[0052] The fan assembly 10 involved in this invention is provided with an airflow control device 13. The airflow control device 13 can change the connection status between the air inlet 11b and the air outlet 11c, thereby naturally switching between various air supply conditions, making the air conditioner 1 more comfortable when adjusting the temperature and improving the user experience.

[0053] In some embodiments, such as Figures 7-10 As shown, the airflow control device 13 includes an inner cylinder 131 and an outer cylinder 132. The inner cylinder 131 is provided with a first flow port 131a; the outer cylinder 132 is sleeved on the outer periphery of the inner cylinder 131 and is provided with a second flow port 132a, and an air guide channel is formed between the inner cylinder 131 and the outer cylinder 132; wherein the outer cylinder 132 and / or the inner cylinder 131 are movably arranged, and the inner cylinder 131 and the outer cylinder 132 are moved relative to each other until the projections of the first flow port 131a and the second flow port 132a in the opening direction at least partially overlap to open the air guide channel. Specifically, the airflow control device 13 controls the opening or closing of the air duct by controlling the state of the inner cylinder 131 and / or the outer cylinder 132. When the inner cylinder 131 and / or the outer cylinder 132 moves to the point where the projections of the first flow port 131a and the second flow port 132a in the open direction at least partially overlap, the air duct is opened, and the airflow control device 13 is in the open state. When the inner cylinder 131 and / or the outer cylinder 132 moves to the point where the projections of the first flow port 131a and the second flow port 132a in the open direction do not overlap, the air duct is closed, and the airflow control device 13 is in the blocking state.

[0054] More specifically, the outer cylinder 132 is sleeved on the outer periphery of the inner cylinder 131 and is coaxially arranged with the inner cylinder 131.

[0055] In some embodiments, the outer cylinder 132 and the inner cylinder 131 can be moved relative to each other in the axial direction to change the conduction state of the air guide duct. At this time, the first flow port 131a is provided on the peripheral wall of the inner cylinder 131, and the second flow port 132a is provided on the peripheral wall of the outer cylinder 132. When the inner cylinder 131 and / or the outer cylinder 132 move in the axial direction and move to the point where the projections of the first flow port 131a and the second flow port 132a in the opening direction at least partially overlap, the air guide duct is opened, and the air reaches the air outlet 11c through the air guide duct. In these embodiments, the axes of the outer cylinder 132 and the inner cylinder 131 are not parallel to the line connecting the air inlet 11b and the air outlet 11c.

[0056] In other embodiments, the outer cylinder 132 and the inner cylinder 131 can rotate relative to each other in the circumferential direction to change the conduction state of the air guide duct. At this time, the first flow port 131a and the second flow port 132a are respectively provided on the circumferential wall and / or bottom wall of the inner cylinder 131 and the circumferential wall and / or bottom wall of the outer cylinder 132. When the inner cylinder 131 and / or the outer cylinder 132 rotate relative to each other until the projections of the first flow port 131a and the second flow port 132a in the open direction at least partially overlap, the air guide duct is open, and the air reaches the air outlet 11c through the air guide duct.

[0057] In other embodiments, the outer cylinder 132 and the inner cylinder 131 can rotate relative to each other in the circumferential direction and move relative to each other in the axial direction to change the conduction state of the air guide duct. At this time, the first flow port 131a can be provided on the circumferential wall and bottom wall of the inner cylinder 131 and the second flow port 132a can be provided on the circumferential wall and bottom wall of the outer cylinder 132. When the inner cylinder 131 and / or the outer cylinder 132 rotate relative to each other and move to the point where the projections of the first flow port 131a and the second flow port 132a in the open direction at least partially overlap, the air guide duct is open, and the air reaches the air outlet 11c through the air guide duct. In these embodiments, the inner cylinder 131 and / or the outer cylinder 132 can move in the direction from the air inlet 11b to the air outlet 11c.

[0058] It is understandable that the movement scheme of the outer cylinder 132 and the inner cylinder 131 can be selected according to the size of the indoor unit 1 of the air conditioner. The airflow control device 13 switches between the conduction state and the blocking state by setting the relatively movable outer cylinder 132 and the inner cylinder 131. The scheme is simple and highly feasible.

[0059] In some embodiments, such as Figures 7-10As shown, the inner cylinder 131 and / or the outer cylinder 132 are rotatably disposed within the air duct 11a. Specifically, the outer cylinder 132 and the inner cylinder 131 can rotate relative to each other in the circumferential direction to change the conduction state of the air duct. The projections of the cross sections of the outer cylinder 132 and the inner cylinder 131 are concentric circles. The airflow control device 13 is designed with the outer cylinder 132 and the inner cylinder 131 that can rotate relative to each other, which can reduce the space occupied by the airflow control device 13 in the air duct 11a. Furthermore, the relative rotation of the outer cylinder 132 and the inner cylinder 131 allows the airflow control device 13 to quickly switch between the conduction state and the blocking state, thereby enabling the fan assembly 10 to have a pulse airflow effect. The indoor unit 1 of the air conditioner with such a structure of fan assembly 10 has a natural airflow switching, improving user comfort.

[0060] In some embodiments, such as Figures 7-10 As shown, the first flow port 131a and the second flow port 132a are configured to be open in the radial and / or axial directions. Specifically, in some embodiments, the first flow port 131a and the second flow port 132a are respectively disposed on the peripheral walls of the inner cylinder 131 and the outer cylinder 132 and are open in the radial direction. The inner cylinder 131 and / or the outer cylinder 132 are rotated relative to each other so that the projections of the first flow port 131a and the second flow port 132a in the opening direction at least partially overlap, so as to open the air guide channel. Preferably, in these embodiments, the axes of the outer cylinder 132 and the inner cylinder 131 are not parallel to the line connecting the air inlet 11b and the air outlet 11c, so that the air reaches the air outlet 11c through the air guide channel. In other embodiments, the first flow port 131a and the second flow port 132a are respectively disposed on the bottom walls of the inner cylinder 131 and the outer cylinder 132 and are open in the axial direction. The inner cylinder 131 and / or the outer cylinder 132 are rotated relative to each other until the projections of the first flow port 131a and the second flow port 132a in the opening direction at least partially overlap, so that the air guide channel is open. Preferably, in these embodiments, the axes of the outer cylinder 132 and the inner cylinder 131 are not orthogonal to the line connecting the air inlet 11b and the air outlet 11c, so that air reaches the air outlet 11c through the air guide channel. In other embodiments, the first flow port 131a and the second flow port 132a are respectively disposed on the peripheral wall and the bottom wall of the inner cylinder 131 and the outer cylinder 132. The inner cylinder 131 and / or the outer cylinder 132 are rotated relative to each other until the projections of the first flow port 131a and the second flow port 132a in the opening direction at least partially overlap, so that the air guide channel is open.

[0061] In some embodiments, such as Figure 4As shown, the airflow control device 13 also includes a rotary drum drive device 133. The rotary drum drive device 133 is connected to the inner cylinder 131 or the outer cylinder 132 and drives the inner cylinder 131 or the outer cylinder 132 to rotate around the axis of the inner cylinder 131. Specifically, the rotary drum drive device 133 can drive one of the inner cylinder 131 and the outer cylinder 132 to rotate, thereby achieving relative rotation between the inner cylinder 131 and the outer cylinder 132. More specifically, in some embodiments, the rotary drum drive device 133 is located outside the outer cylinder 132 and drives the outer cylinder 132 to rotate; when the outer cylinder 132 rotates, the air duct is continuously opened and closed. In other embodiments, the rotary drum drive device 133 is located inside the inner cylinder 131 or inside the outer cylinder 132 and drives the inner cylinder 131 to rotate; when the inner cylinder 131 rotates, the air duct is continuously opened and closed. The rotary drum drive device 133 allows the airflow control device 13 to quickly switch between an open state and a closed state.

[0062] In some embodiments, the rotary drum drive device 133 includes a drive mounting plate 1331 and a rotary drum motor 1332. The drive mounting plate 1331 cooperates with the housing 11 and is provided with a through hole 1331a suitable for the motor shaft of the rotary drum motor 1332 to pass through. The motor shaft of the rotary drum motor 1332 is connected to the outer cylinder 132 through the through hole 1331a to drive the outer cylinder 132 to rotate. The drive mounting plate 1331 is also provided with an air passage 1331b communicating with the second flow port 132a to avoid the drive mounting plate 1331 blocking the airflow. When the air duct is in the open or closed state, the air in the air duct 11a can pass through the air passage 1331b and reach the second flow port 132a. Such a rotary drum drive device 133 has a simple structure, the state of the airflow control device 13 can be easily changed, and the airflow at the airflow control device 13 is not affected.

[0063] In some embodiments, such as Figures 7-10 As shown, the inner cylinder 131 includes an inner cylinder bottom plate 1311 and an inner cylinder side plate 1312. The inner cylinder side plate 1312 is disposed on the outer periphery of the inner cylinder bottom plate 1311 and extends axially. A first flow port 131a is provided on the inner cylinder bottom plate 1311 and / or the inner cylinder side plate 1312. The outer cylinder 132 includes an outer cylinder bottom plate 1321 and an outer cylinder side plate 1322. The outer cylinder side plate 1322 is disposed on the outer periphery of the outer cylinder bottom plate 1321 and extends axially. A second flow port 132a is provided on the outer cylinder bottom plate 1321 and / or the outer cylinder side plate 1322. Specifically, the inner cylinder side plate 1312 is constructed as the peripheral wall of the inner cylinder 131, and the inner cylinder bottom plate 1311 is constructed as the bottom wall of the inner cylinder 131; the outer cylinder side plate 1322 is constructed as the peripheral wall of the outer cylinder 132, and the outer cylinder bottom plate 1321 is constructed as the bottom wall of the outer cylinder 132. The outer cylinder side plate 1322 and the outer cylinder bottom plate 1321 together define the space for accommodating the inner cylinder 131, wherein the outer cylinder bottom plate 1321 and the inner cylinder bottom plate 1311 are directly opposite each other, and the outer cylinder side plate 1322 and the inner cylinder side plate 1312 are directly opposite each other.

[0064] More specifically, the axes of the outer cylinder 132 and the inner cylinder 131 are arranged parallel to the line connecting the air inlet 11b and the air outlet 11c. In some embodiments, the first flow port 131a and the second flow port 132a are respectively disposed on the inner cylinder side plate 1312 and the outer cylinder side plate 1322 and are open in the radial direction; in other embodiments, the first flow port 131a and the second flow port 132a are respectively disposed on the inner cylinder bottom plate 1311 and the outer cylinder bottom plate 1321 and are open in the axial direction; in other embodiments, the first flow port 131a is disposed on the inner cylinder side plate 1312 and the inner cylinder bottom plate 1311 and the second flow port 132a is open in the axial direction. 32a is disposed on the side plate 1322 of the outer cylinder 132 and the bottom plate 1321 of the outer cylinder. In these embodiments, the first flow port 131a and the second flow port 132a are disposed in various positions so that air can enter the airflow control device 13 from the axial and circumferential directions and be blown to the air outlet 11c. The first flow port 131a and the second flow port 132a located on the side plate 1322 of the outer cylinder 132 and the side plate 1312 of the inner cylinder allow the airflow control device 13 to enter the airflow circumferentially, which can reduce the air speed while increasing the air intake area, thereby reducing the air pressure at the air outlet 11c and improving the user's comfort.

[0065] In some embodiments of the present invention, the first flow port 131a is configured as a plurality of such ports and each first flow port 131a extends from the inner cylinder side plate 1312 to the inner cylinder bottom plate 1311, and the second flow port 132a is configured as a plurality of such ports and each second flow port 132a extends from the outer cylinder side plate 1322 to the outer cylinder bottom plate 1321.

[0066] In some embodiments, such as Figures 7-10 As shown, the first flow port 131a is constructed as a plurality of fan-shaped holes, at least one of which is arranged around the center of the inner cylinder bottom plate 1311; the second flow port 132a is constructed as a plurality of fan-shaped holes, at least one of which is arranged around the center of the outer cylinder bottom plate 1321. Specifically, the inner cylinder bottom plate 1311 is provided with the first flow port 131a, which penetrates the inner cylinder bottom plate 1311 and is constructed as a fan-shaped hole; the outer cylinder bottom plate 1321 is provided with the second flow port 132a, which penetrates the outer cylinder bottom plate 1321 and is constructed as a fan-shaped hole. More specifically, in some embodiments, the inner cylinder bottom plate 1311 is constructed as a circular plate, and the inner cylinder bottom plate 1311 is provided with two first flow ports 131a that are symmetrical about the diameter of the circular plate. Each first flow port 131a is constructed as a fan-shaped hole, and the central angle corresponding to the arc of the fan-shaped hole is less than 90°, so as to ensure that the air duct is closed when the airflow control device 13 is in the blocking state. It can be understood that the construction of the second flow port 132a on the outer cylinder 132 is the same as the construction of the first flow port 131a on the inner cylinder 131.

[0067] In some embodiments, such as Figure 4 As shown, a vent hole 113a is provided on the housing 11. Specifically, when the airflow control device 13 is in an obstructed state, the air is trapped between the impeller and the airflow control device 13. At this time, since the impeller continuously generates air and the air cannot be blown out of the fan assembly 10, the air accumulated between the impeller and the airflow control device 13 is prone to generating wind noise. The vent hole 113a on the housing 11 is provided to discharge a small amount of air between the impeller and the airflow control device 13, which can reduce wind noise and also reduce the wind pressure of the accumulated air, avoid excessive wind pressure affecting the pulse wind of the previous cycle, and reduce the impact of wind pressure on the wind targeting and air delivery distance.

[0068] In some embodiments of the present invention, when the airflow control device 13 is in an obstructed state, the airflow is trapped between the impeller and the outer cylinder 132. The inner cylinder 131 and the housing body 111 are integral, and a gap is formed between the inner cylinder 131 and the housing body 111. The outer cylinder 132 is rotatably disposed within the gap. The drain hole 113a communicates with the space between the impeller and the outer cylinder 132 to discharge a small amount of air trapped between the impeller and the outer cylinder 132.

[0069] In some embodiments, such as Figures 2-6 As shown, the housing 11 includes a housing body 111 and a flared section 112. The housing body 111 is cylindrical and has an airflow control device 13 installed inside. The inlet end of the flared section 112 is connected to the outlet end of the housing body 111, and the inner diameter of the flared section 112 gradually increases in the airflow direction. Specifically, the airflow control device 13 is located inside the housing body 111, and the flared section 112 is connected to the housing body 111 and located downstream in the airflow direction. The flared section 112, with its gradually increasing inner diameter in the airflow direction, can reduce the wind speed while improving the uniformity of air diffusion in the fan assembly 10.

[0070] In some embodiments, such as Figures 2-6 As shown, the diameter of the outlet end of the housing body 111 is larger than the diameter of the inlet end of the flared section 112. An end plate 113 connects the outer periphery of the outlet end of the housing body 111 and the outer periphery of the inlet end of the flared section 112. A vent hole 113a is provided on the end plate 113. Specifically, the diameter of the outlet end of the housing body 111 is larger than the diameter of the inlet end of the flared section 112, and an end plate 113 connects the housing body 111 and the flared section 112. The wind entering the air duct from the circumference of the airflow control device 13 impacts the end plate 113, changes its flow direction, and accumulates at the inlet end of the flared section 112, which can enhance the wind speed reduction effect of the flared section 112. The vent hole 113a is located on the end plate 113 and communicates with the space between the impeller and the outer cylinder 132 to discharge a small amount of wind accumulated between the impeller and the outer cylinder 132.

[0071] In some embodiments, such as Figure 6 As shown, the free end of the side plate 1322 of the outer cylinder 132 is provided with a radially extending flange 1322a. The flange 1322a and the second flow port 132a are staggered in the circumferential direction and at least partially overlap with the drain hole 113a when the air guide is in the open state. Specifically, the inner cylinder 131 is disposed inside the outer cylinder 132, and the outer cylinder 132 is rotatably disposed inside the housing body 111, and the flange 1322a and the second flow port 132a are staggered in the circumferential direction. When the airflow control device 13 is in the blocking state, the drain hole 113a is connected to the second flow port 132a. At this time, a small part of the air entering through the second flow port 132a is blown out through the drain hole 113a. When the airflow control device 13 is in the open state, the flange 1322a can completely or partially block the drain hole 113a to reduce the air volume blown out through the drain hole 113a and ensure the air volume of the fan assembly 10.

[0072] In some embodiments, such as Figures 2-6 As shown, the fan assembly 10 also includes a convolution shell 14. The convolution shell 14 is disposed on the housing 11 and located at the air outlet 11c of the air duct 11a. A convolution channel 14a communicating with the air duct 11a is formed inside the convolution shell 14. The area of ​​the inlet end of the convolution channel 14a is larger than the area of ​​the outlet end of the convolution channel 14a. Specifically, the air in the air duct 11a enters the convolution channel 14a through the air guide. Since the convolution channel 14a has a structure that is wide at the beginning and narrow at the end, the air is entrained and forms a vortex ring when it flows out of the air outlet 11c through the convolution shell 14. The vortex ring is a ring-shaped pulsed airflow. The air ejected from the air outlet 11c continuously provides momentum and mass to the vortex ring, and the volume and velocity of the vortex ring continuously increase. Combined with the flow characteristics of the vortex ring, the fan assembly 10 can achieve long-distance fixed-point air delivery.

[0073] In some embodiments, such as Figures 4-6 As shown, the fan assembly 10 also includes a rectifier 15. The rectifier 15 is disposed within the convolution channel 14a, and the rectifier 15 has multiple rectifier holes that are directed along the airflow direction. Specifically, the rectifier 15 has rectifier holes, and the air from the air duct passes through the rectifier holes and mixes. The rectifier holes ensure that the air velocity at the outlet 11c is consistent, so that the air velocity distribution on the circumferential surface is uniform after flowing through the rectifier 15. This avoids problems such as short air delivery distance and high turbulence intensity caused by uneven circumferential velocity distribution. The rectifier 15 in the fan assembly 10 can improve the air outlet uniformity of the fan assembly 10.

[0074] In some embodiments, such as Figures 4-6As shown, the distance between the rectifier 15 and the exit end of the convolution channel 14a is L, where 3mm ≤ L ≤ 15mm. Specifically, the rectifier 15 can be positioned adjacent to the exit end of the convolution channel 14a, making the internal structure of the convolution housing 14 compact and reducing the space occupied by the rectifier 15. Preferably, the distance between the rectifier 15 and the exit end of the convolution channel 14a is 10mm.

[0075] In some embodiments, such as Figures 1-6 As shown, the fan assembly comprises multiple impellers arranged coaxially within the air duct 11a. These multiple impellers can be selectively activated according to the status of the indoor unit 1 of the air conditioner. Specifically, the multiple impellers can be selectively activated according to airflow demand, thereby switching the airflow intensity and feel of the indoor unit 1. More specifically, when a single impeller rotates, the airflow of the fan assembly 10 is relatively small, allowing the indoor unit 1 to deliver air at short distances. However, when multiple impellers rotate simultaneously, the airflow generated by the fan assembly 10 is increased, enabling the indoor unit 1 to deliver air at long distances.

[0076] In some embodiments, the fan assembly includes a first fan 121 and a second fan 122. The second fan 122 is disposed at the air inlet 11b, and the first fan 121 is disposed between the second fan 122 and the airflow control device 13. When the airflow control device 13 is in the conducting state for a long time, the fan assembly 10 delivers air stably. When the user needs long-distance airflow, the first fan 121 and the second fan 122 work simultaneously at the same speed, which can ensure a long airflow distance and keep the wind noise at a low level. When the user needs short-distance airflow, the first fan 121 works alone, which can achieve short-distance airflow while reducing unnecessary fan rotation power consumption. When the airflow control device 13 continuously switches between the conducting state and the blocking state, the fan assembly 10 delivers air intermittently. The first fan 121 and the second fan 122 working simultaneously at the same speed can provide the user with long-distance pulsed airflow, and the first fan 121 working alone can provide the user with short-distance pulsed airflow. While the fan assembly 10 intermittently supplies air, it can increase the rotational speed of the outer cylinder 132, thereby increasing the cutoff frequency of the air per unit time, thus increasing the effective cutoff frequency of the air, reducing the dynamic pressure of the air flowing through the cutoff member, and thus reducing the speed of the air at the outlet 11c. After rectification by the rectifier 15, the fan assembly 10 can achieve windless air supply.

[0077] In some embodiments of the present invention, the housing 11 includes a housing body 111, a first air guide ring, and a second air guide ring. The first air guide ring is disposed at the inlet end of the housing body 111, the first impeller 121 is rotatably disposed within the first air guide ring, the second air guide ring is coaxially disposed with the first air guide ring and located within the first air guide ring, and the second impeller 122 is rotatably disposed within the second air guide ring. The arrangement of the first and second air guide rings can guide the airflow direction, concentrate the airflow, and thereby improve the air output efficiency of the fan assembly 10.

[0078] In some embodiments, the fan assembly 10 includes a housing 11, a rotor, an airflow control device 13, a convolution housing 14, and a rectifier 15. The housing 11 has an air inlet 11b and an air outlet 11c, and an internal air duct 11a. The housing 11 also includes a housing body 111, a flared section 112, a first air guide ring, and a second air guide ring. The flared section 112 is connected to the housing body 111 and is located downstream in the airflow direction. The diameter of the outlet end of the housing body 111 is larger than the diameter of the inlet end of the flared section 112, and an end plate 113 connects the housing body 111 and the flared section 112. The end plate 113 has a vent hole 113a. The first air guide ring is... At the inlet end of the housing body 111, the first impeller 121 is rotatably disposed within the first air guide ring, the second air guide ring is coaxially disposed with the first air guide ring and located within the first air guide ring, and the second impeller 122 is rotatably disposed within the second air guide ring. External airflow enters the air duct 11a through the air inlet 11b. The convolution housing 14 is disposed on the housing 11 and located at the air outlet 11c of the fan assembly 10. The convolution housing 14 has a convolution channel 14a, and a rectifier 15 is disposed within the convolution channel 14a. The rectifier 15 is provided with multiple rectifier holes.

[0079] The shell body 111 is cylindrical and has an internal airflow control device 13. The airflow control device 13 includes an inner cylinder 131, an outer cylinder 132, and a rotating cylinder drive device 133. The inner cylinder 131 is disposed inside the outer cylinder 132, and the outer cylinder 132 is rotatably disposed inside the shell body 111. The flange 1322a and the second flow port 132a are staggered in the circumferential direction. The inner cylinder 131 includes an inner cylinder side plate 1312 and an inner cylinder bottom plate 1311. The outer cylinder 132 includes an outer cylinder side plate 1322 and an outer cylinder bottom plate 1321. The outer cylinder side plate 1322 and the outer cylinder bottom plate 1321 together define a space for accommodating the inner cylinder 131. The outer cylinder bottom plate 1321 is directly opposite the inner cylinder bottom plate 1311, and the outer cylinder side plate 1322 is directly opposite the inner cylinder side plate 1312. The inner cylinder bottom plate 1311 is provided with two fan-shaped first flow ports 131a that are symmetrical about the diameter of the inner cylinder bottom plate 1311 and penetrate through the inner cylinder bottom plate 1311. The inner cylinder side plate 1312 is provided with two first flow ports 131a that are directly opposite each other in the diameter direction of the inner cylinder bottom plate 1311. The outer cylinder bottom plate 1321 is provided with two fan-shaped second flow ports 132a that are symmetrical about the diameter of the outer cylinder bottom plate 1321 and penetrate through the outer cylinder bottom plate 1321. The outer cylinder side plate 1322 is provided with two second flow ports 132a that are directly opposite each other in the diameter direction of the outer cylinder bottom plate 1321. The rotary drum drive device 133 includes a drive mounting plate 1331 and a rotary drum motor 1332. The drive mounting plate 1331 is fitted with the housing 11 and is provided with a through hole 1331a. The motor shaft of the rotary drum motor 1332 is connected to the outer cylinder 132 through the through hole 1331a to drive the outer cylinder 132 to rotate. The drive mounting plate 1331 is also provided with an air outlet 1331b that communicates with the second flow port 132a.

[0080] When the rotary drum motor 1332 drives the outer cylinder 132 to rotate until the projections of the first flow port 131a and the second flow port 132a in the open direction at least partially overlap, the air guide duct is opened, and the air reaches the air outlet 11c through the air guide duct. At this time, the airflow control device 13 is in the on state. When the airflow control device 13 is in the on state for a long time, the fan assembly 10 delivers air stably. When the user needs long-distance air, the first impeller 121 and the second impeller 122 work at the same speed, which can ensure a long air delivery distance and keep the wind noise at a low level. When the user needs short-distance air, the first impeller 121 works alone, which can reduce unnecessary impeller rotation power consumption while achieving short-distance air delivery.

[0081] When the rotary drum motor 1332 drives the outer cylinder 132 to rotate continuously, the airflow control device 13 continuously switches between the conduction state and the blocking state, and the fan assembly 10 delivers air intermittently. The first impeller 121 and the second impeller 122 work simultaneously and at the same speed to provide users with long-distance pulsed air. The first impeller 121 works alone to provide users with short-distance pulsed air. If the rotation speed of the outer cylinder 132 is increased at this time, the cutoff frequency of the air per unit time is increased, which can increase the effective cutoff frequency of the air and reduce the dynamic pressure of the air flowing through the cutoff member, thereby reducing the air speed at the air outlet 11c. After rectification by the rectifier 15, the fan assembly 10 can achieve windless air delivery.

[0082] The fan assembly 10 of this application is provided with an airflow control device 13, which can change the connection status between the air inlet 11b and the air outlet 11c, thereby naturally switching between various air supply conditions.

[0083] The following is a brief description of the indoor unit according to the present invention.

[0084] like Figure 1 As shown, the indoor unit 1 according to the present invention includes the fan assembly 10 described in any of the above embodiments (e.g., ...). Figure 2 As shown, since the indoor unit 1 according to the present invention is provided with the fan assembly 10 of the above embodiment, the indoor unit 1 has good comfort when adjusting the temperature, which can improve the user experience.

[0085] In summary, the fan assembly 10 of this application is equipped with an airflow control device 13 to adjust the blowing mode and blowing intensity. The relative rotation of the outer cylinder 132 and the inner cylinder 131 allows the airflow control device 13 to quickly switch between a conducting state and a blocking state, thereby giving the fan assembly 10 a pulsed airflow effect. The airflow switching is natural, and the user experience is comfortable. The airflow control device 13 is equipped with a rotating drum drive device 133 to drive the outer cylinder 132 to rotate. This airflow control device 13 has a simple structure, is easy to change states, and does not affect... Airflow: A first flow port 131a is located on the inner cylinder side plate 1312 and the inner cylinder bottom plate 1311, and a second flow port 132a is located on the outer cylinder side plate 1322 and the inner cylinder bottom plate 1311. The first and second flow ports 131a and 132a on the outer cylinder side plate 1322 and the inner cylinder side plate 1312 allow airflow control device 13 to enter circumferentially, increasing the air intake area while reducing the air velocity, thereby reducing the air pressure at the air outlet 11c and improving user comfort. Furthermore, the first flow port 131a... Both the first and second flow ports 132a are fan-shaped holes with a central angle less than 90° corresponding to the arc of the fan-shaped hole, ensuring that the air duct is closed when the airflow control device 13 is in the blocked state. The housing 11 is also provided with a vent hole 113a, which can reduce wind noise and reduce the wind pressure of the wind accumulated between the impeller and the airflow control device 13 when the airflow control device 13 is in the blocked state, avoiding excessive wind pressure from affecting the pulse wind of the previous cycle, reducing the impact of wind pressure on the wind's targeting and delivery distance, and when the airflow control device 13 is in the open state... The flange 1322a of the outer cylinder 132 can completely or partially cover the vent hole 113a to reduce the air volume blown out of the vent hole 113a and ensure the air volume of the fan assembly 10. The casing 11 is provided with a flared section 112 whose inner diameter gradually increases in the direction of airflow, which can reduce the wind speed and improve the uniformity of air diffusion of the fan assembly 10. The convolution shell 14 is provided at the air outlet 11c to enable the fan assembly 10 to deliver air at a fixed point over a long distance. The rectifier 15 is provided in the convolution shell 14 to improve the uniformity of air outlet of the fan assembly 10.

[0086] The air outlet control method of the air conditioner according to an embodiment of the present invention will be explained in detail below.

[0087] It is understood that the present invention is applicable not only to the air conditioner's cooling or dehumidifying mode, but also to the heating mode. The following embodiments use the air conditioner in cooling or dehumidifying mode as an example to explain the present invention.

[0088] Figure 11 A flowchart of an air outlet control method for an air conditioner according to an embodiment of the present invention is shown below. Figure 11 As shown, the air outlet control method of this air conditioner may include the following steps:

[0089] Step S201: Determine the air supply mode.

[0090] Specifically, when controlling the airflow of an air conditioner during operation, the first step is to determine the air supply mode. This determination can be based on the actual heat demand of the users in the space. The air supply mode can be selected automatically or manually. Air supply modes can include stable continuous air supply mode, intermittent pulsed air supply mode, and windless air supply mode, among others.

[0091] In one embodiment, determining the air supply mode includes: acquiring a first temperature difference between the indoor ambient temperature and a set temperature, and acquiring a second temperature difference between the human body's perceived temperature and a preset comfort temperature; and determining the air supply mode based on the first temperature difference and the second temperature difference.

[0092] In other words, users can set two temperature parameters according to their needs: a set temperature and a preset comfort temperature. The set temperature is a target value set to optimize the indoor ambient temperature, while the preset comfort temperature is a target value set to optimize the perceived temperature for the human body. To further meet the comfort requirements of the air conditioner, the temperature difference between the actual value and the target value can be obtained, and different air supply modes can be selected based on this temperature difference.

[0093] It is understandable that when there are multiple users indoors, the perceived temperature of each user can be monitored, and multiple second temperature differences can be obtained accordingly. Then, the air supply mode can be determined by taking the maximum value of the multiple second temperature differences and the first temperature difference, or by taking the average value of the multiple second temperature differences and the first temperature difference, or other methods can be used. This application does not make any specific restrictions on this.

[0094] Furthermore, the air supply mode includes a stable continuous air supply mode, an intermittent pulsed air supply mode, and a windless air supply mode. The air supply mode is determined based on a first temperature difference and a second temperature difference, including: when the first temperature difference is greater than a first preset temperature threshold, the air supply mode is determined to be a stable continuous air supply mode; when the first temperature difference is less than or equal to the first preset temperature threshold, if the second temperature difference is greater than the second preset temperature threshold, the air supply mode is determined to be an intermittent pulsed air supply mode; otherwise, the air supply mode is determined to be a windless air supply mode.

[0095] Specifically, when the first temperature difference is greater than the first preset temperature threshold (e.g., 3℃), meaning the difference between the indoor ambient temperature and the set temperature is greater than the first preset temperature threshold, it indicates that the current indoor ambient temperature is high and rapid cooling is needed. In this case, the air supply mode is set to a stable continuous air supply mode. Conversely, when the first temperature difference is less than or equal to the first preset temperature threshold, if the second temperature difference is greater than the second preset temperature threshold (e.g., 3℃), meaning the difference between the perceived human body temperature and the preset comfortable temperature (which can range from 19 to 24℃) is large, it indicates that the current perceived human body temperature is high and the person is in a warm state. In this case, the air supply mode is set to intermittent pulsed air supply to adjust the person's feeling of wind and coolness. If the second temperature difference is less than or equal to the second preset temperature threshold, meaning the difference between the perceived human body temperature and the preset comfortable temperature is small, it indicates that the person is in a comfortable state, and a gentle, windless air supply mode can be used to maintain room temperature balance. This not only achieves high comfort but also helps save energy.

[0096] Step S202: Control the conduction status of the impeller assembly and air duct according to the air supply mode, so that the indoor unit can supply air stably and continuously, intermittently pulsatingly, or without a wind sensation.

[0097] In other words, after determining the air supply mode, the operating status of the fan assembly (such as on status, speed, etc.) is controlled according to the current air supply mode, and the conduction status of the air duct (such as on / off status, on / off frequency, etc.) is controlled so that the indoor unit can achieve stable continuous air supply, intermittent pulsed air supply, or windless air supply.

[0098] In some embodiments, reference Figure 7 As shown, the conduction state of the impeller assembly and the air duct is controlled according to the air supply mode, including: when the air supply mode is a stable continuous air supply mode, controlling the air duct to keep the air inlet 11b and the air outlet 11c completely connected, and obtaining the distance between the human body and the indoor unit of the air conditioner; controlling the rotation speed of the impeller assembly according to the distance.

[0099] Specifically, in stable continuous air supply mode, the inner cylinder 131 can be controlled to rotate and reset to a relatively stationary position, allowing the axial and circumferential channels of the inner cylinder 131 and outer cylinder 132 to be connected. Furthermore, the distance between the human body and the indoor unit of the air conditioner is obtained, and the rotational speed of the impeller assembly is controlled based on this distance. This control of the impeller assembly's rotational speed controls the air pressure and flow rate of the duct system. In other words, after determining the distance between the human body and the indoor unit of the air conditioner, the impeller assembly performs work on the airflow within the duct system, causing the airflow to pass through the through-channel of the airflow control device, forming a stable airflow that exits from the air outlet of the duct system.

[0100] Further, refer to Figure 6As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The rotational speed of the wind turbine assembly is controlled according to the distance, including: when the distance is greater than a preset value, controlling the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously, and controlling the rotational speed of the first wind turbine 121 and the second wind turbine 122 to be within a first rotational speed range; when the distance is less than or equal to the preset value, controlling the first wind turbine 121 to rotate, and controlling the rotational speed of the first wind turbine 121 to be within a second rotational speed range.

[0101] In other words, when operating in a stable continuous air supply mode, the distance between the human body and the indoor unit 1 of the air conditioner is obtained. If this distance is greater than a preset value (e.g., 2m), indicating that long-distance air supply is required, the first fan wheel 121 and the second fan wheel 122 are controlled to rotate simultaneously. Since a higher fan wheel speed results in a greater air supply distance but also greater noise, to achieve long-distance air supply while maintaining a low noise level, the speeds of the first fan wheel 121 and the second fan wheel 122 are controlled within a first speed range, specifically 200–600 rpm. It is understood that the speeds of the first fan wheel 121 and the second fan wheel 122 can be the same or different; this application does not impose specific limitations on this. If the distance between the human body and the indoor unit is less than or equal to the preset value (e.g., 2m), short-distance air supply is required. In this case, one of the fan wheels can be controlled to operate, thereby achieving short-distance air supply while reducing unnecessary fan wheel rotation power consumption, and the speed of that fan wheel is controlled within a second speed range, specifically 300–500 rpm. In a specific example, when it is necessary to control the rotation of one of the wind turbines, it is preferable to control the rotation of the first wind turbine 121, which is closer to the airflow control device.

[0102] In some embodiments, controlling the conduction state of the impeller assembly and the air duct according to the air supply mode includes: when the air supply mode is an intermittent pulsed air supply mode, controlling the air duct to intermittently connect the air inlet and the air outlet according to a first cutoff frequency, and obtaining the distance between the human body and the indoor unit; and controlling the rotation speed of the impeller assembly according to the distance.

[0103] Specifically, refer to Figure 7-10As shown, in the intermittent pulsed air supply mode, the air duct can be controlled to intermittently connect the air inlet 11b and the air outlet 11c at a certain frequency. By controlling the rotation of the inner cylinder 131, the axial and circumferential channels are intermittently connected and closed, thereby periodically cutting off the airflow flowing through the inner cylinder 131. That is, by rotating the inner cylinder 131, the air pressure flowing through the air duct is changed, so that the airflow is instantaneously compressed within a constant cavity volume. Then, the airflow is rectified by the rectifier 15 and flows through the outlet edge of the convolution shell 14 for convolution, forming an annular pulsed airflow, i.e., a vortex ring. During the continuous process, the jet ejected from the air outlet 11c continuously provides momentum and mass to the vortex ring, causing the volume and velocity of the vortex ring to continuously increase. Thus, combined with the flow characteristics of the vortex ring, long-distance air supply can be achieved. More specifically, since the rotational speed of the inner cylinder 131 determines the frequency and interval of intermittent airflow, the rotational speed of the inner cylinder 131 can be controlled between 10 and 200 rpm. Furthermore, when operating the intermittent pulsed airflow mode, the distance between the human body and the indoor unit can be obtained, and the rotational speed of the impeller assembly can be controlled based on this distance, thereby controlling the air pressure and flow rate of the duct system.

[0104] Further reference Figure 6 As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The rotational speed of the wind turbine assembly is controlled according to the distance, including: when the distance is greater than a preset value, controlling the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously, and controlling the rotational speed of the first wind turbine 121 and the second wind turbine 122 to be in a third rotational speed range; when the distance is less than or equal to the preset value, controlling the first wind turbine 121 to rotate, and controlling the rotational speed of the first wind turbine 121 to be in a fourth rotational speed range.

[0105] In other words, when operating the intermittent pulsed air supply mode, the distance between the human body and the indoor unit is obtained. If this distance is greater than a preset value (e.g., 2m), indicating that the air conditioner needs to supply air over a long distance, the first impeller 121 and the second impeller 122 are controlled to rotate simultaneously. Since the higher the speed of the impeller, the greater the air supply distance, the greater the noise generated. To achieve long-distance air supply while maintaining a low noise level, the speed of the first impeller 121 and the second impeller 122 is controlled within a third speed range, specifically 200-600 rpm. It is understood that the speeds of the first impeller 121 and the second impeller 122 can be the same or different; this application does not impose specific restrictions on this. If the distance between the human body and the indoor unit is less than or equal to the preset value (e.g., 2m), the air conditioner needs to supply air over a short distance. In this case, one of the impellers can be controlled to operate, thereby achieving short-distance air supply while reducing unnecessary impeller rotation power consumption. Simultaneously, the speed of the impeller is controlled within a fourth speed range, specifically 100-500 rpm. In a specific example, when controlling the rotation of one of the wind turbines, it is preferable to control the rotation of the first wind turbine 121, which is closer to the airflow control device.

[0106] In some embodiments, continue to refer to Figure 6 As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The conduction state of the wind turbine assembly and the air duct is controlled according to the air supply mode, including: when the air supply mode is a windless air supply mode, controlling the air duct to intermittently connect the air inlet 11b and the air outlet 11c according to a second cutoff frequency, controlling the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously, and controlling the rotation speed of the first wind turbine 121 and the second wind turbine 122 to be within a fifth rotation speed range.

[0107] Specifically, in the windless air supply mode, the air duct can be controlled to connect the air inlet and outlet intermittently at a high frequency. In a specific example, the second cutoff frequency in the windless air supply mode is higher than the first cutoff frequency in the intermittent pulsed air supply mode, which can increase the rotational speed of the inner cylinder 131 to over 200 rpm. This increases the airflow cutoff frequency per unit time, increases the effective cutoff frequency of the airflow, and reduces the airflow pressure flowing through the air duct. The airflow is then rectified by the rectifier 15, achieving windless air supply. Simultaneously, to ensure a large air volume and air pressure, the first impeller 121 and the second impeller 122 can be controlled to rotate simultaneously, and the impeller speed can be controlled within the fifth speed range, specifically 200–600 rpm. It is understood that the rotational speeds of the first impeller 121 and the second impeller 122 can be the same or different; this application does not impose specific limitations on this.

[0108] In summary, the air outlet control method for an air conditioner according to embodiments of the present invention, by having an indoor unit equipped with a casing, a fan assembly, and a controllable airflow control device, and by determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, enables the indoor unit to provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This allows for multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0109] The air outlet control method of the air conditioner of the present invention will be further explained and illustrated below through two specific embodiments.

[0110] Figure 12 A flowchart for determining the air supply mode according to an embodiment of the present invention is provided, with reference to... Figure 12 As shown, determining the air supply mode may include the following steps:

[0111] Step S301: Determine whether the current air conditioning mode is cooling or dehumidification mode.

[0112] Step S302: Obtain the indoor ambient temperature Te and the set temperature Ts.

[0113] Step S303: Determine whether the first temperature difference between the indoor ambient temperature Te and the set temperature Ts is greater than the first temperature threshold of 3℃. If yes, determine that the air supply mode is a stable continuous air supply mode; if no, obtain the human body temperature Tp and the preset comfort temperature Tc, and execute step S204.

[0114] Step S304: Determine whether the second temperature difference between the detected human body temperature Tp and the preset comfort temperature Tc is greater than the second temperature threshold of 3℃. If yes, determine that the air supply mode is the intermittent pulse air supply mode; if no, determine that the air supply mode is the windless air supply mode.

[0115] Figure 13 A flowchart illustrating the implementation of an air supply mode according to an embodiment of the present invention is provided below. Figure 13 As shown, implementing the air supply mode may include the following steps:

[0116] Step S401: Determine the current air supply mode.

[0117] Step S402: When running in stable continuous air supply mode, control the inner rotating cylinder to rotate and reset, keep the circumferential channel and axial channel connected, and obtain the distance L between the human body and the indoor unit.

[0118] Step S403: Determine whether the distance L is greater than the preset value of 2m. If yes, control the first and second wind turbines to rotate simultaneously, with a rotation speed range of 200-600rpm. If no, control the first wind turbine to rotate, with a rotation speed range of 300-500rpm.

[0119] Step S404: When running the intermittent pulsed air supply mode, control the inner drum to rotate, with a speed range of 10-200 rpm, and obtain the distance between the human body and the indoor unit.

[0120] Step S405: Determine whether the distance L is greater than the preset value of 2m. If yes, control the first and second wind turbines to rotate simultaneously, with a rotation speed range of 200-600rpm. If no, control the first wind turbine to rotate, with a rotation speed range of 100-500rpm.

[0121] Step S406: When running the windless air supply mode, control the inner rotating cylinder to rotate at a speed greater than 200 rpm, and control the first and second impellers to rotate simultaneously at a speed range of 200-600 rpm.

[0122] Figure 14 This is a structural block diagram of an air conditioner controller according to an embodiment of the present invention, with reference to... Figure 14 As shown, the air conditioner controller 500 includes a memory 501, a processor 502, and an air conditioner air outlet control program stored in the memory 501 and run on the processor 502. When the processor 502 executes the air conditioner air outlet control program, it implements the air conditioner air outlet control method described above.

[0123] According to an embodiment of the present invention, the air conditioner controller includes an indoor unit with a casing, a fan assembly, and a selectable airflow control device. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0124] In one embodiment, a computer-readable storage medium is provided that stores an air outlet control program for an air conditioner, which, when executed by a processor, implements the aforementioned air outlet control method for the air conditioner.

[0125] According to a computer-readable storage medium of an embodiment of the present invention, an indoor unit of an air conditioner includes a casing, a fan assembly, and an airflow control device that allows selective conduction. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0126] In one embodiment, the indoor unit of the air conditioner includes a fan assembly, as shown in the reference. Figure 6As shown, the wind turbine assembly includes: a casing 11, a wind turbine assembly, an airflow control device 13, and a controller (not shown in the figure).

[0127] The housing 11 has an air duct 11a, and the impeller assembly is rotatably disposed in the air duct 11a to deliver air. The airflow control device 13 is disposed in the air duct 11a and is blocked between the air inlet 11b and the air outlet 11c of the air duct 11a. The airflow control device 13 is provided with a selectable air guide duct. When the air guide duct is in the open state, it connects the air inlet 11b and the air outlet 11c. The controller is used to determine the air delivery mode and control the open state of the impeller assembly and the air guide duct according to the air delivery mode, so that the indoor unit can deliver stable and continuous air, intermittent pulsed air, or windless air.

[0128] In one embodiment, the controller is specifically configured to: acquire a first temperature difference between the indoor ambient temperature and a set temperature, and acquire a second temperature difference between the human body's perceived temperature and a preset comfortable temperature; and determine an air supply mode based on the first temperature difference and the second temperature difference.

[0129] In one embodiment, the air supply mode includes a stable continuous air supply mode, an intermittent pulsed air supply mode, and a windless air supply mode. The controller is specifically configured to: determine the air supply mode as a stable continuous air supply mode when the first temperature difference is greater than a first preset temperature threshold; and determine the air supply mode as an intermittent pulsed air supply mode if the second temperature difference is greater than a second preset temperature threshold when the first temperature difference is less than or equal to the first preset temperature threshold, otherwise determine the air supply mode as a windless air supply mode.

[0130] In one embodiment, the controller is specifically used to: control the air duct to keep the air inlet and air outlet fully connected when the air supply mode is a stable continuous air supply mode, and obtain the distance between the human body and the indoor unit; and control the rotation speed of the fan assembly according to the distance.

[0131] In one embodiment, reference Figure 6 As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The controller is specifically used to: control the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously when the distance is greater than a preset value, and control the rotation speed of the first wind turbine 121 and the second wind turbine 122 to be within a first rotation speed range; and control the first wind turbine 121 to rotate when the distance is less than or equal to the preset value, and control the rotation speed of the first wind turbine 121 to be within a second rotation speed range.

[0132] In one embodiment, the controller is specifically used to: control the air duct to intermittently connect the air inlet and the air outlet according to a first cutoff frequency when the air supply mode is intermittent pulsed air supply mode, and obtain the distance between the human body and the indoor unit; and control the rotation speed of the fan assembly according to the distance.

[0133] In one embodiment, reference Figure 6 As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The controller is specifically used to: control the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously when the distance is greater than a preset value, and control the rotation speed of the first wind turbine 121 and the second wind turbine 122 to be in a third rotation speed range; and control the first wind turbine 121 to rotate when the distance is less than or equal to the preset value, and control the rotation speed of the first wind turbine 121 to be in a fourth rotation speed range.

[0134] In one embodiment, reference Figure 6 As shown, the wind turbine assembly includes a first wind turbine 121 and a second wind turbine 122. The controller is specifically used to: control the air duct to intermittently connect the air inlet and the air outlet according to the second cutoff frequency when the air supply mode is the windless air supply mode, control the first wind turbine 121 and the second wind turbine 122 to rotate simultaneously, and control the rotation speed of the first wind turbine 121 and the second wind turbine 122 to be in the fifth rotation speed range.

[0135] It should be noted that for the description of the indoor unit of the air conditioner in this application, please refer to the description of the air outlet control method of the air conditioner in this application, and will not be repeated here.

[0136] According to an embodiment of the present invention, the indoor unit of an air conditioner includes a casing, a fan assembly, and an airflow control device that allows for selective airflow control. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0137] Figure 15 This is a structural block diagram of an air conditioner according to an embodiment of the present invention, with reference to... Figure 15 As shown, the air conditioner 100 includes the indoor unit 1 of the air conditioner described above.

[0138] According to an embodiment of the present invention, the air conditioner includes an indoor unit with a casing, a fan assembly, and an airflow control device that allows for selective airflow control. By determining the air supply mode and controlling the conduction state of the fan assembly and air duct according to the air supply mode, the indoor unit can provide stable continuous air supply, intermittent pulsating air supply, or windless air supply. This enables multiple air supply modes to meet diverse heating needs, thereby effectively improving product comfort.

[0139] It should be understood that, although Figure 11-13The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 11-13 At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0140] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, such as a ordered list of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: electrical connections having one or more wires (electronic devices), portable computer disk drives (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, such as by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0141] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0142] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0143] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for controlling the airflow of an air conditioner, characterized in that, The indoor unit of the air conditioner includes a casing, a fan assembly, and an airflow control device. An air duct is formed within the casing. The fan assembly is rotatably disposed within the air duct to deliver air. The airflow control device is located within the air duct and is positioned between the air inlet and outlet of the air duct. The airflow control device is equipped with a selectable air guide duct. When open, the air guide duct connects the air inlet and the air outlet. The method includes: Determine the air supply mode, which includes a stable continuous air supply mode, an intermittent pulsed air supply mode, and a windless air supply mode; The system obtains the first temperature difference between the indoor ambient temperature and the set temperature, and the second temperature difference between the human body's perceived temperature and the preset comfortable temperature. When the first temperature difference is greater than the first preset temperature threshold, the air supply mode is determined to be the stable continuous air supply mode. When the first temperature difference is less than or equal to the first preset temperature threshold, if the second temperature difference is greater than the second preset temperature threshold, the air supply mode is determined to be the intermittent pulsed air supply mode; otherwise, the air supply mode is determined to be the windless air supply mode. The conduction state of the fan assembly and the air duct is controlled according to the air supply mode so that the indoor unit can perform stable continuous air supply, intermittent pulsed air supply, or windless air supply.

2. The method according to claim 1, characterized in that, Controlling the conduction state of the impeller assembly and the air guide duct according to the air supply mode includes: When the air supply mode is a stable continuous air supply mode, the air duct is controlled to keep the air inlet and the air outlet completely connected, and the distance between the human body and the indoor unit is obtained. The rotational speed of the wind turbine assembly is controlled based on the distance.

3. The method according to claim 2, characterized in that, The wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the rotational speed of the wind turbine assembly according to the distance includes: When the distance is greater than a preset value, the first wind turbine and the second wind turbine are controlled to rotate simultaneously, and the rotation speeds of the first wind turbine and the second wind turbine are controlled to be within a first rotation speed range; When the distance is less than or equal to a preset value, the first wind turbine is controlled to rotate, and the rotational speed of the first wind turbine is controlled to be within the second rotational speed range.

4. The method according to claim 1, characterized in that, Controlling the conduction state of the impeller assembly and the air guide duct according to the air supply mode includes: When the air supply mode is intermittent pulsed air supply mode, the air duct is controlled to intermittently connect the air inlet and the air outlet according to the first cutoff frequency, and the distance between the human body and the indoor unit is obtained. The rotational speed of the wind turbine assembly is controlled based on the distance.

5. The method according to claim 4, characterized in that, The wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the rotational speed of the wind turbine assembly according to the distance includes: When the distance is greater than a preset value, the first wind turbine and the second wind turbine are controlled to rotate simultaneously, and the rotation speed of the first wind turbine and the second wind turbine is controlled to be within a third rotation speed range; When the distance is less than or equal to a preset value, the first wind turbine is controlled to rotate, and the rotational speed of the first wind turbine is controlled to be in the fourth rotational speed range.

6. The method according to claim 1, characterized in that, The wind turbine assembly includes a first wind turbine and a second wind turbine, wherein controlling the conduction state of the wind turbine assembly and the air guide duct according to the air supply mode includes: When the air supply mode is the windless air supply mode, the air duct is controlled to intermittently connect the air inlet and the air outlet according to the second cutoff frequency, and the first impeller and the second impeller are controlled to rotate simultaneously, and the rotation speed of the first impeller and the second impeller is controlled to be in the fifth rotation speed range.

7. An air conditioner controller, characterized in that, The device includes a memory, a processor, and an air outlet control program for an air conditioner stored in the memory and executable on the processor. When the processor executes the air outlet control program for the air conditioner, it implements the air outlet control method for the air conditioner according to any one of claims 1-6.

8. A computer-readable storage medium, characterized in that, It stores an air outlet control program for an air conditioner, which, when executed by a processor, implements the air outlet control method for an air conditioner according to any one of claims 1-6.

9. An indoor unit of an air conditioner, characterized in that, include: The device includes a housing, a fan assembly, and an airflow control device. An air duct is formed inside the housing. The fan assembly is rotatably disposed within the air duct to deliver air. The airflow control device is disposed within the air duct and isolating the air inlet and outlet of the air duct. The airflow control device is provided with a selectable air guide duct that connects the air inlet and the air outlet when in the open state. The controller is used to determine the air supply mode. The air supply modes include stable continuous air supply mode, intermittent pulsed air supply mode, and windless air supply mode. The system obtains the first temperature difference between the indoor ambient temperature and the set temperature, and the second temperature difference between the human body's perceived temperature and the preset comfortable temperature. When the first temperature difference is greater than the first preset temperature threshold, the air supply mode is determined to be the stable continuous air supply mode. When the first temperature difference is less than or equal to the first preset temperature threshold, if the second temperature difference is greater than the second preset temperature threshold, then the air supply mode is determined to be the intermittent pulsed air supply mode; otherwise, the air supply mode is determined to be the windless air supply mode. The system controls the conduction state of the impeller assembly and the air duct according to the air supply mode, so that the indoor unit can provide stable continuous air supply, intermittent pulsed air supply, or windless air supply.

10. An air conditioner, characterized in that, Including the indoor unit of the air conditioner according to claim 9.

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