Sweeping blade, sweeping mechanism, air conditioner indoor unit and control method

Abstract

The application provides a sweeping blade, a sweeping mechanism, an air conditioner indoor unit and a control method. The sweeping blade is arranged at an air outlet. The sweeping blade is swingably arranged to sweep air. The sweeping blade comprises a sweeping blade body. The sweeping blade body comprises: a sweeping blade main body having a through hole; and a flow guide part connected with the sweeping blade main body. The flow guide part has a flow guide surface. The flow guide surface has an annular structure. In the extension direction of the center line of the flow guide surface, the radius of the cross section of the flow guide surface perpendicular to the center line gradually increases. A flow channel is formed between the flow guide part and the inner wall of the through hole, so that the gas entering the flow channel flows along the flow guide surface. The sweeping blade solves the problem that the cold air of the air conditioner indoor unit directly blows on the human body, causing poor comfort experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a sweeping blade, a sweeping mechanism, an air conditioner indoor unit and a control method. BACKGROUND

[0002] With the development of wall-mounted machine technology, the comfort function of air conditioners is increasingly valued by people. After the user turns on the air conditioner for a period of time, long-time direct blowing of cold air can easily cause discomfort to the human body, and can also make the local temperature lower, affecting the health of the human body, so improving the air supply technology of air conditioner comfort has become the key to the development of air conditioners.

[0003] At present, the traditional air conditioner usually realizes the air supply comfort of the air conditioner through the air guide assembly, and the air guide assembly includes an air guide plate and a sweeping blade. The structure and control method of the two are improved to improve the air supply comfort.

[0004] However, the air guide assembly of the traditional air conditioner still has the following problems:

[0005] Direct blowing of cold air to the human body results in poor comfort experience;

[0006] The air supply direction is single, the air supply range is small, and the air conditioner cannot realize dynamic air supply control, and the blowing mode is single. SUMMARY

[0007] The main purpose of the present application is to provide a sweeping blade, a sweeping mechanism, an air conditioner indoor unit and a control method to solve the problem of direct blowing of cold air to the human body of the air conditioner indoor unit in the prior art, which causes poor comfort experience.

[0008] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a sweeping blade is provided, which is arranged at an air outlet, and the sweeping blade is swingably arranged to sweep air. The sweeping blade includes a sweeping blade body, and the sweeping blade body includes: a sweeping blade main body having a through hole; a flow guide portion connected with the sweeping blade main body, the flow guide portion having a flow guide surface, the flow guide surface being an annular structure; along the extension direction of the center line of the flow guide surface, the radius of the cross section of the flow guide surface perpendicular to the center line gradually increases; and a flow passage is formed between the flow guide portion and the inner wall of the through hole, so that the gas entering the flow passage flows along the flow guide surface.

[0009] Further, along the air inlet direction of the through hole, the flow guide surface has a first flow guide end and a second flow guide end arranged in sequence; and along the direction from the first flow guide end to the second flow guide end, the radius of the cross section of the flow guide surface perpendicular to the center line gradually increases.

[0010] Further, the flow guide surface and the center line form a preset included angle γ, and 10°≤γ≤60°.

[0011] Further, the flow guide part is a tubular structure, and the tubular structure has a first end face and a second end face arranged in sequence along a radial direction of the tubular structure, and the first end face and the second end face are both flow guide faces.

[0012] Further, a center line of the tubular structure coincides with a center line of the through hole.

[0013] Further, the air sweeping blade body includes a plurality of flow guide parts, and the plurality of flow guide parts are arranged at intervals along a radial direction of the through hole; and a flow passage is formed between each two adjacent flow guide parts.

[0014] Further, the plurality of flow guide parts are arranged in sequence along an axial direction of the through hole, and at least part of a projection of each two adjacent flow guide parts in the radial direction of the through hole coincides; or, the projection of each two adjacent flow guide parts in the radial direction of the through hole is arranged in abutment or at intervals.

[0015] Further, the air sweeping blade body has a first blade end face and a second blade end face arranged in sequence along the axial direction of the through hole, a first end of a flow guide part close to an inner wall of the through hole in the plurality of flow guide parts is flush with the first blade end face, and a second end of the flow guide part close to the inner wall of the through hole in the plurality of flow guide parts is arranged protruding from the second blade end face; and / or, the second end of a flow guide part close to the center line of the through hole in each two adjacent flow guide parts is arranged protruding from the second end of a flow guide part away from the center line of the through hole in each two adjacent flow guide parts.

[0016] Further, the flow guide part close to the inner wall of the through hole in the plurality of flow guide parts and the air sweeping blade body are connected by a connecting component, a first end of the connecting component is connected with the air sweeping blade body, and a second end of the connecting component is connected with the flow guide part; and / or, each two adjacent flow guide parts are connected by a connecting component, a first end of the connecting component is connected with one flow guide part in each two adjacent flow guide parts, and a second end of the connecting component is connected with another flow guide part in each two adjacent flow guide parts.

[0017] Further, the connecting component includes a plurality of connecting parts, and the plurality of connecting parts are arranged at intervals along a circumferential direction of the through hole.

[0018] Further, a minimum width of the flow passage in the radial direction of the through hole is greater than or equal to 1 mm.

[0019] Further, along the axial direction of the through hole, a maximum thickness of the air sweeping blade body is D; and 5 mm≤D≤20 mm.

[0020] Further, the air sweeping blade body has a connecting end and a free end arranged oppositely along a first preset direction, and the connecting end is used for being connected with a transmission assembly; a width of the air sweeping blade body gradually decreases in a direction from the connecting end to the free end; and the first preset direction, the width direction of the air sweeping blade body, and the center line of the through hole are arranged perpendicularly in pairs.

[0021] According to a second aspect of the present application, a sweeping mechanism is provided, comprising: a plurality of sweeping blades as described above; a transmission assembly, at least a part of the transmission assembly being movably arranged, and each of the plurality of sweeping blades being connected to the at least a part of the transmission assembly so as to be driven by the at least a part of the transmission assembly to swing.

[0022] Further, the sweeping blades have a first position, a second position and a third position, and the sweeping blades are switchably arranged between the first position, the second position and the third position; when the sweeping blades are in the first position, the sweeping blades are arranged perpendicularly to the air outlet; the sweeping blades in the third position are arranged at an angle of 90 degrees with the sweeping blades in the first position; and the second position is between the first position and the third position.

[0023] Further, the transmission assembly comprises: a support plate having a plurality of limiting holes; a first crank rotatably arranged; a first transmission rod hingedly connected to the first crank; a plurality of second transmission rods arranged on the first transmission rod, and each of the plurality of second transmission rods being movably arranged relative to the first transmission rod; the plurality of second transmission rods are arranged in one-to-one correspondence with the plurality of limiting holes, and a connecting protrusion of each of the second transmission rods is arranged in a corresponding limiting hole and rotatably arranged relative to the limiting hole; wherein the plurality of second transmission rods are arranged in one-to-one correspondence with the plurality of sweeping blades, and a sweeping blade body of each of the sweeping blades is fixedly connected to a corresponding connecting protrusion.

[0024] According to a third aspect of the present application, an air conditioner indoor unit is provided, comprising a sweeping mechanism as described above.

[0025] According to a fourth aspect of the present application, a control method of an air conditioner indoor unit is provided, and is applicable to the air conditioner indoor unit as described above, and the control method of the air conditioner indoor unit comprises: receiving a start signal and controlling the air conditioner indoor unit to start; detecting an indoor temperature, and adjusting a swing angle of sweeping blades of the air conditioner indoor unit according to the indoor temperature.

[0026] Further, before detecting the indoor temperature and adjusting the swing angle of the sweeping blades of the air conditioner indoor unit according to the indoor temperature, the control method of the air conditioner indoor unit further comprises: controlling the air conditioner indoor unit to enter a cool mode to control the sweeping blades to switch to the first position; and causing the air conditioner indoor unit to operate in the cool mode for a first preset time length.

[0027] Further, the method for adjusting the swing angle of the air sweeping blade of the air conditioner indoor unit according to the indoor temperature comprises: when the indoor temperature is greater than a first preset temperature, controlling the air conditioner indoor unit to enter a surrounding wind mode to control the air sweeping blade to swing between a first position and a third position; when the indoor temperature is greater than or equal to a second preset temperature and less than or equal to the first preset temperature, controlling the air conditioner indoor unit to enter a slight wind mode to control the air sweeping blade to switch to the second position; and when the indoor temperature is less than the second preset temperature, controlling the air conditioner indoor unit to enter a soft wind mode to control the air sweeping blade to switch to the third position.

[0028] The air sweeping blade of the present application is arranged at the air outlet, and comprises an air sweeping blade body and a flow guide part. The air sweeping blade is swingably arranged to sweep air. When the air sweeping blade swings to a preset position and air is blown out of the air outlet, the gas entering the through hole flows through the flow passage and along the flow guide surface to generate a flow disturbance, thereby forming a scattering effect and avoiding cold air directly blowing on the human body, and improving the comfort. The air supply range is also increased. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings, and their descriptions, are used to explain the present application and are not intended to limit the present application. In the drawings:

[0030] Figure 1 A perspective view of an embodiment of the air sweeping blade according to the present application is shown;

[0031] Figure 2 A top view of an embodiment of the air sweeping blade according to the present application is shown;

[0032] Figure 3 A side view of an embodiment of the air sweeping blade according to the present application is shown;

[0033] Figure 4 A sectional view of an embodiment of the air sweeping blade according to the present application is shown;

[0034] Figure 5 A perspective view of an embodiment of the air sweeping mechanism according to the present application is shown;

[0035] Figure 6 An exploded view of a partial structure of an embodiment of the air sweeping mechanism according to the present application is shown;

[0036] Figure 7 A schematic view of the air sweeping blade of the air conditioner indoor unit according to the present application is shown when the air sweeping blade is in a first position;

[0037] Figure 8 A schematic view of the air sweeping blade of the air conditioner indoor unit according to the present application is shown when the air sweeping blade is in a second position;

[0038] Figure 9 Fig. 8 shows a schematic view of the air conditioner indoor unit according to the present application, with the air sweeping blade in a third position.

[0039] Wherein, the above figures include the following reference signs:

[0040] 1, air sweeping blade; 2, air outlet; 10, air sweeping blade body; 11, through hole; 12, first blade end face; 13, second blade end face; 14, clamping part; 20, flow guide part; 21, flow guide surface; 211, first flow guide end; 212, second flow guide end; 22, first end face; 23, second end face; 30, flow passage; 40, connecting part; 41, connecting part; 50, reinforcing part;

[0041] 60, support plate; 61, limiting hole; 71, first crank; 72, first transmission rod; 73, second transmission rod; 74, connecting protrusion. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0043] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0044] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of a feature, step, operation, device, component and / or combinations thereof.

[0045] The present application provides an air sweeping blade, please refer to Figures 1 to 9 , which is arranged at the air outlet 2, the air sweeping blade is swingably arranged to sweep air, the air sweeping blade comprises an air sweeping blade body, the air sweeping blade body comprises: an air sweeping blade body 10 having a through hole 11; a flow guide part 20 connected with the air sweeping blade body 10, the flow guide part 20 has a flow guide surface 21, the flow guide surface 21 is of an annular structure; along the extension direction of the center line of the flow guide surface 21, the radius of the cross section of the flow guide surface 21 perpendicular to the center line gradually increases; the flow guide part 20 and the inner wall of the through hole 11 form a flow passage 30, so that the gas entering the flow passage 30 flows along the flow guide surface 21.

[0046] The sweeping blade of the present application is arranged at the air outlet, and comprises a sweeping blade body 10 and a flow guide part 20. The sweeping blade is swingably arranged to sweep air. When the sweeping blade swings to a preset position and the air outlet blows air, the gas entering the through hole 11 flows through the flow passage 30 and along the flow guide surface 21 to generate turbulence, thereby forming a scattering effect, avoiding cold air directly blowing on the human body, improving comfort, and increasing the air supply range.

[0047] The preset position is a position other than the first position, i.e., the third position and a position between the first position and the third position.

[0048] In the embodiment, along the air inlet direction of the through hole 11, the flow guide surface 21 has a first flow guide end 211 and a second flow guide end 212 arranged in sequence. In the direction from the first flow guide end 211 to the second flow guide end 212, the radius of the cross section of the flow guide surface 21 perpendicular to the center line thereof gradually increases. Such arrangement causes the gas flowing through the through hole to diffuse towards the surroundings under the flow guiding effect of the flow guide surface 21, thereby forming a scattering effect, avoiding cold air directly blowing on the human body, improving comfort, and increasing the air supply range.

[0049] In the embodiment, the flow guide part 20 has a tubular structure, and the tubular structure has a first end surface 22 and a second end surface 23 arranged in sequence along the radial direction thereof. Both the first end surface 22 and the second end surface 23 are flow guide surfaces 21. In specific implementation, the gas flowing through the through hole can generate turbulence when flowing through the two flow guide surfaces, thereby improving the turbulence effect, and diffusing towards the surroundings under the effect of the two flow guide surfaces, thereby improving the scattering effect.

[0050] Specifically, the center line of the tubular structure coincides with the center line of the through hole 11, and the center line of the tubular structure is the center line of the flow guide surface 21.

[0051] Specifically, as shown in Figure 3 The flow guide surface 21 is arranged at a preset angle γ with the center line thereof, where 10°≤γ≤60°. Such arrangement has a good scattering effect.

[0052] In the embodiment, the flow guide part 20 has a first end and a second end arranged opposite to each other along the axial direction of the through hole 11. The first flow guide end 211 extends to the first end of the flow guide part 20, and the second flow guide end 212 extends to the second end of the flow guide part 20. In specific implementation, the extension of the first flow guide end 211 to the first end of the flow guide part 20 and the extension of the second flow guide end 212 to the second end of the flow guide part 20 can increase the area of the flow guide surface, thereby strengthening the effect of the gas diffusing towards the surroundings under the effect of the flow guide surface, and improving the scattering effect.

[0053] In the embodiment, the sweeping blade body comprises a plurality of guide portions 20, the plurality of guide portions 20 are arranged in the radial direction of the through hole 11, and a flow channel 30 is formed between each two adjacent guide portions 20. Such arrangement enables the gas to pass through the sweeping blade through the flow channel 30 to disturb the flow of the gas.

[0054] In the embodiment, the plurality of guide portions 20 are arranged in the axial direction of the through hole 11, and at least part of the projections of each two adjacent guide portions 20 in the radial direction of the through hole 11 coincide with each other; or, the projections of each two adjacent guide portions 20 in the radial direction of the through hole 11 are arranged in abutment or in separation.

[0055] Specifically, the sweeping blade body 10 has a first blade end face 12 and a second blade end face 13 arranged in the axial direction of the through hole 11, the first end of the guide portion 20 close to the inner wall of the through hole 11 in the plurality of guide portions 20 is flush with the first blade end face 12, and the second end of the guide portion 20 close to the inner wall of the through hole 11 in the plurality of guide portions 20 is arranged protruding from the second blade end face 13; and / or, the second end of the guide portion 20 close to the center line of the through hole 11 in each two adjacent guide portions 20 is arranged protruding from the second end of the guide portion 20 away from the center line of the through hole 11 in each two adjacent guide portions 20.

[0056] In the embodiment, the guide portion 20 close to the inner wall of the through hole 11 in the plurality of guide portions 20 is connected with the sweeping blade body 10 through a connecting member 40, the first end of the connecting member 40 is connected with the sweeping blade body 10, and the second end of the connecting member 40 is connected with the guide portion 20; and / or, each two adjacent guide portions 20 are connected through a connecting member 40, the first end of the connecting member 40 is connected with one of the guide portions 20 in each two adjacent guide portions 20, and the second end of the connecting member 40 is connected with the other guide portion 20 in each two adjacent guide portions 20. Such arrangement enables the connection of the plurality of guide portions 20 with the sweeping blade body 10, and improves the strength of the sweeping blade.

[0057] Specifically, the connecting member 40 comprises a plurality of connecting portions 41, the plurality of connecting portions 41 are arranged in the circumferential direction of the through hole 11. When the first end of the connecting member 40 is connected with the sweeping blade body 10, and the second end of the connecting member 40 is connected with the guide portion 20, the first end of each connecting portion 41 is connected with the sweeping blade body 10, and the second end of each connecting portion 41 is connected with the guide portion 20; when the first end of the connecting member 40 is connected with one of the guide portions 20 in each two adjacent guide portions 20, and the second end of the connecting member 40 is connected with the other guide portion 20 in each two adjacent guide portions 20, the first end of each connecting portion 41 is connected with one of the guide portions 20, and the second end of each connecting portion 41 is connected with the other guide portion 20.

[0058] In the embodiment, the sweeping blade body further comprises a reinforcing part 50, the reinforcing part 50 is connected with the guide part 20 close to the center line of the through hole. Such arrangement can strengthen the strength of the sweeping blade.

[0059] Specifically, when the guide part 20 is a tubular structure, the reinforcing part 50 is a reinforcing tube, the first end of the reinforcing tube has an opening, the second end of the reinforcing tube is a closed end, the first end of the reinforcing tube is matched with one end of the guide part 20 close to the inlet of the through hole, and the first end of the reinforcing tube is connected with the one end of the guide part 20 close to the inlet of the through hole, and the two are smoothly and connected.

[0060] In the embodiment, the minimum width of the flow channel 30 in the radial direction of the through hole 11 is greater than or equal to 1mm. Such arrangement ensures the flow rate of the gas flowing out of the sweeping blade.

[0061] In the embodiment, the maximum thickness of the sweeping blade body in the axial direction of the through hole 11 is D; wherein 5mm≤D≤20mm.

[0062] In the embodiment, the sweeping blade body 10 has a connecting end and a free end arranged oppositely in the first preset direction, the connecting end is used for connecting with the transmission assembly; the width of the sweeping blade body 10 gradually decreases from the connecting end to the free end; the first preset direction, the width direction of the sweeping blade body 10 and the center line of the through hole 11 are arranged perpendicularly. Such arrangement further enhances the turbulence effect of the sweeping blade.

[0063] Wherein, when the sweeping blade is in the first position, the connecting end and the free end are arranged in the air outlet direction of the air outlet in sequence.

[0064] The application also provides a sweeping mechanism, please refer to Figures 5 to 9 , comprising: a plurality of sweeping blades 1 in the above-mentioned embodiments; a transmission assembly, at least part of the transmission assembly is movably arranged, and the plurality of sweeping blades 1 are connected with the at least part of the transmission assembly, so that the at least part of the transmission assembly drives the plurality of sweeping blades 1 to swing. Specifically, when the airflow flows through the sweeping blade 1, a part of the airflow flows out between the sweeping blades, and a part of the airflow flows out from the flow channel of the sweeping blade 1 and diffuses to the surrounding under the action of the guide surface, which can expand the air supply range and produce turbulence effect.

[0065] Specifically, the sweeping blade 1 has a first position, a second position and a third position, and the sweeping blade 1 is switchably arranged between the first position, the second position and the third position; when the sweeping blade 1 is in the first position, the sweeping blade 1 is arranged perpendicularly to the air outlet 2; the sweeping blade 1 in the third position is arranged at an angle of 90 degrees with the sweeping blade 1 in the first position; the second position is between the first position and the third position. Wherein, when the sweeping blade 1 is in the first position, the center line of the through hole 11 is parallel to the plane where the air outlet 2 is located; when the sweeping blade 1 is in the third position, the center line of the through hole 11 is perpendicular to the plane where the air outlet 2 is located.

[0066] In specific implementation, when the sweeping blade is in the third position, the airflow passing through the sweeping blade has the effect of air diffusion disturbance, specifically, the sweeping blade blocks most of the air outlet area between the sweeping blades, the airflow flows out of the flow-through channel 30 of the sweeping blade, spreads to the surrounding along the flow guide surface of the flow guide part, and forms the air diffusion effect, at this time, the air outlet area is the smallest, and the air outlet area is A1, at this time, on the one hand, the air outlet wind speed is greatly reduced, and on the other hand, the airflow is diffused along the tubular structure, the air exchange between the cold air and the room air is enlarged, the air outlet amount can be reduced without reducing the cooling effect, and the user can enjoy the cooling comfort effect; when the sweeping blade is in the second position, the airflow passes through the sweeping blade, and the sweeping blade forms an angle of β with the third position, at this time, the air outlet area is A2, at this time, the sweeping blade blocks part of the air outlet area, and the air outlet wind speed is reduced; when the sweeping blade is in the first position, at this time, the air outlet area is the largest, the airflow flows through the gaps between the sweeping blades, and the area is A3, and then at this time, the wind speed is the largest, and the wind feeling is the strongest. Wherein, A3>A2>A1. Such arrangement realizes the diversity of air supply direction and air supply mode.

[0067] Specifically, the transmission assembly comprises: a support plate 60 having a plurality of limiting holes 61; a first crank 71 rotatably arranged; a first transmission rod 72 hingedly connected with the first crank 71; a plurality of second transmission rods 73 are arranged on the first transmission rod 72, and the plurality of second transmission rods 73 are movably arranged relative to the first transmission rod 72; the plurality of second transmission rods 73 are arranged in one-to-one correspondence with the plurality of limiting holes 61, and the connecting protrusion 74 of each second transmission rod 73 is arranged in the corresponding limiting hole 61 and is rotatably arranged relative to the limiting hole 61; wherein, the plurality of second transmission rods 73 are arranged in one-to-one correspondence with the plurality of sweeping blades 1, and the sweeping blade body 10 of each sweeping blade 1 is fixedly connected with the corresponding connecting protrusion 74. In specific implementation, the rotating first crank 71 drives the first transmission rod 72 to move, and the second transmission rod 73 rotates under the driving of the first transmission rod 72 and the limiting action of the fixed support plate 60, that is, rotates around the center line of the limiting hole 61; since the sweeping blade is fixedly connected with the second transmission rod 73, the sweeping blade swings under the driving of the second transmission rod 73 to realize left and right sweeping.

[0068] Specifically, the connecting end of the sweeping blade body of the sweeping blade 1 is provided with a clamping portion 14, which is clamped with the connecting protrusion 74.

[0069] Specifically, the sweeping mechanism further comprises a motor connected with the first crank 71 to drive the first crank 71 to rotate.

[0070] The application further provides an air conditioner indoor unit comprising the sweeping mechanism.

[0071] The application further provides a control method of an air conditioner indoor unit, which is suitable for the air conditioner indoor unit in the above embodiments, and comprises the following steps: receiving a start signal and controlling the air conditioner indoor unit to start; detecting an indoor temperature and adjusting the swing angle of the sweeping blade 1 of the air conditioner indoor unit according to the indoor temperature.

[0072] Specifically, before detecting the indoor temperature and adjusting the swing angle of the sweeping blade 1 of the air conditioner indoor unit according to the indoor temperature, the control method of the air conditioner indoor unit further comprises the following steps: controlling the air conditioner indoor unit to enter a cool mode to control the sweeping blade 1 to switch to the first position; and controlling the air conditioner indoor unit to run in the cool mode for a first preset time length.

[0073] Specifically, the method for adjusting the swing angle of the sweeping blade 1 of the air conditioner indoor unit according to the indoor temperature comprises the following steps: when the indoor temperature is greater than a first preset temperature, controlling the air conditioner indoor unit to enter a surrounding wind mode to control the sweeping blade 1 to swing between the first position and the third position; when the indoor temperature is greater than or equal to a second preset temperature and less than or equal to the first preset temperature, controlling the air conditioner indoor unit to enter a breeze mode to control the sweeping blade 1 to switch to the second position; and when the indoor temperature is less than the second preset temperature, controlling the air conditioner indoor unit to enter a soft mode to control the sweeping blade 1 to switch to the third position.

[0074] In specific implementation, the air supply mode of the air conditioner indoor unit has a cool mode, a breeze mode, a soft mode and a surround air mode; when the user opens the air conditioner indoor unit, the cool mode is opened by default for a first preset time t, wherein 3min≤t≤10min, the cool mode air sweeping blades are at a first position, at this time, the air flow flows out from the gaps between the air sweeping blades, the air outlet area is the largest, the air speed is the largest, and the air feeling is the strongest. After tmin, according to the indoor temperature monitored by the temperature sensor, when the indoor temperature T0>T1 (a first preset temperature), the surround air mode is automatically opened, in the surround air mode, the motor shaft drives the first crank, and then drives the first transmission rod to swing, at this time, the air sweeping blades swing between the first position and the third position, the air flow flows out from the gaps between the air sweeping blades and the flow-through channel 30 inside the air sweeping blades alternately, forming surround air; when T2 (a second preset temperature)≤T0≤T1, the breeze mode is opened, in the breeze mode, the air sweeping blades are at a second position, at this time, the air sweeping blades shield part of the air outlet area, reducing the air outlet speed; when T0

[0075] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0076] The air sweeping blade of the present application is arranged at the air outlet, and comprises an air sweeping blade body 10 and a flow guide part 20; the air sweeping blade is swingably arranged to sweep air, when the air sweeping blade swings to a preset position and the air outlet blows air, the gas entering the through hole 11 flows through the flow-through channel 30 and along the flow guide surface 21, to generate turbulence and form a scattered air effect, avoiding cold air blowing directly on the human body and improving comfort; and the air supply range is increased.

[0077] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0078] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", and the like, can be used, and relate to the device as illustrated in the figures. However, it is to be understood that no device or feature described herein is limited to the position shown in the figures and can be oriented in other directions, for example, rotated 90 degrees or at other orientations, and that the spatial and directional terms used herein are in reference to the positions of the devices or features shown in the figures and are made only for purposes of illustration. There is no intention in the use of such spatial or directional terms to limit the subject technology.

[0079] The foregoing is merely illustrative of the principles of this application and various modifications can be made by those skilled in the art without departing from the scope and spirit of the application. Any such modifications are intended to be included within the scope of the application.

Claims

1. A sweeping blade for being provided at an air outlet (2), the sweeping blade being swingably provided to perform air sweeping, characterized in that, The sweeping blade comprises a sweeping blade body, the sweeping blade body comprises: A sweeping blade body (10) has a through hole (11); A flow guide part (20) is connected with the sweeping blade body (10), the flow guide part (20) has a flow guide surface (21), the flow guide surface (21) is an annular structure; along the extension direction of the center line of the flow guide surface (21), the radius of the cross section perpendicular to the center line of the flow guide surface (21) gradually increases; the flow guide part (20) and the inner wall of the through hole (11) form a flow passage (30) to make the gas entering the flow passage (30) flow along the flow guide surface (21); Along the air inlet direction of the through hole (11), the flow guide surface (21) has a first flow guide end (211) and a second flow guide end (212) arranged in sequence; from the first flow guide end (211) to the second flow guide end (212), the radius of the cross section perpendicular to the center line of the flow guide surface (21) gradually increases; The flow guide part (20) is a tubular structure, the tubular structure has a first end face (22) and a second end face (23) arranged in sequence along the radial direction thereof, and the first end face (22) and the second end face (23) are the flow guide surface (21); The flow guide part (20) has a first end and a second end arranged oppositely along the axial direction of the through hole (11), the first flow guide end (211) extends to the first end of the flow guide part (20), and the second flow guide end (212) extends to the second end of the flow guide part (20); The sweeping blade body (10) has a first blade end face (12) and a second blade end face (13) arranged in sequence along the axial direction of the through hole (11), the first end of the flow guide part (20) close to the inner wall of the through hole (11) is flush with the first blade end face (12), and the second end of the flow guide part (20) close to the inner wall of the through hole (11) is arranged protruding from the second blade end face (13); and / or, The second end of the flow guide part (20) close to the center line of the through hole (11) in the two adjacent flow guide parts (20) is arranged protruding from the second end of the flow guide part (20) away from the center line of the through hole (11) in the two adjacent flow guide parts (20).

2. The air sweeping blade of claim 1, wherein, The flow guide surface (21) is arranged at a preset included angle γ with the center line thereof, and 10°≤γ≤60°.

3. The air sweeping blade of claim 1, wherein, The center line of the tubular structure coincides with the center line of the through hole (11).

4. The air sweeping blade of claim 1, wherein, The sweeping blade body comprises a plurality of flow guide parts (20), and the plurality of flow guide parts (20) are arranged at intervals along the radial direction of the through hole (11); the flow passage (30) is formed between the two adjacent flow guide parts (20).

5. The air sweeping blade of claim 1, wherein, The plurality of flow guide portions (20) are sequentially arranged along the axial direction of the through hole (11), and at least part of the projection of two adjacent flow guide portions (20) in the radial direction of the through hole (11) coincides; or, the projections of two adjacent flow guide portions (20) in the radial direction of the through hole (11) are arranged in abutment or in separation.

6. The air sweeping blade of claim 1, wherein, The flow guide portion (20) close to the inner wall of the through hole (11) among the plurality of flow guide portions (20) is connected with the air sweeping blade body (10) through a connecting component (40), a first end of the connecting component (40) is connected with the air sweeping blade body (10), and a second end of the connecting component (40) is connected with the flow guide portion (20); and / or, Two adjacent flow guide portions (20) are connected through the connecting component (40), a first end of the connecting component (40) is connected with one of the two adjacent flow guide portions (20), and a second end of the connecting component (40) is connected with the other of the two adjacent flow guide portions (20).

7. A sweep vane according to claim 6, wherein, The connecting component (40) comprises a plurality of connecting portions (41), and the plurality of connecting portions (41) are arranged in separation along the circumference of the through hole (11).

8. A deflector vane according to any one of claims 1 to 7, wherein, The minimum width of the flow passage (30) in the radial direction of the through hole (11) is greater than or equal to 1mm.

9. A deflector vane according to any one of claims 1 to 7, wherein, In the axial direction of the through hole (11), the maximum thickness of the air sweeping blade body is D; wherein, 5mm≤D≤20mm.

10. A deflector vane according to any one of claims 1 to 7, wherein, The air sweeping blade body (10) has a connecting end and a free end arranged in relative in a first preset direction, the connecting end is used for connecting with a transmission assembly; in the direction from the connecting end to the free end, the width of the air sweeping blade body (10) gradually decreases; the first preset direction, the width direction of the air sweeping blade body (10) and the center line of the through hole (11) are arranged in perpendicular to each other.

11. A wind sweeping mechanism characterized by, Comprise: A plurality of air sweeping blades (1) according to any one of claims 1 to 10; A transmission assembly, at least part of the transmission assembly is movably arranged, and a plurality of air sweeping blades (1) are connected with at least part of the transmission assembly, so that at least part of the transmission assembly drives a plurality of air sweeping blades (1) to swing.

12. The air sweeping mechanism of claim 11, wherein, The air sweeping blade (1) has a first position, a second position and a third position, and the air sweeping blade (1) is arranged switchably between the first position, the second position and the third position; When the air sweeping blade (1) is in the first position, the air sweeping blade (1) is arranged perpendicularly to an air outlet; the air sweeping blade (1) in the third position is arranged at an angle of 90 degrees with the air sweeping blade (1) in the first position; and the second position is between the first position and the third position.

13. The air sweeping mechanism of claim 11, wherein, The transmission assembly comprises: A support plate (60) having a plurality of limiting holes (61); A first crank (71) is rotatably arranged; A first transmission rod (72) is hinged with the first crank (71); a plurality of second transmission rods (73) are arranged on the first transmission rod (72), and the plurality of second transmission rods (73) are movably arranged relative to the first transmission rod (72); the plurality of second transmission rods (73) are arranged in one-to-one correspondence with a plurality of limiting holes (61), and a connecting protrusion (74) of each second transmission rod (73) is arranged in a corresponding limiting hole (61) and is rotatably arranged relative to the limiting hole (61); Wherein, the plurality of second transmission rods (73) are arranged in one-to-one correspondence with the plurality of wind sweeping blades (1), and the wind sweeping blade body (10) of each wind sweeping blade (1) is fixedly connected with the corresponding connecting protrusion (74).

14. An air conditioner indoor unit comprising a wind sweeping mechanism, characterized by, The air sweeping mechanism is the air sweeping mechanism of any one of claims 11 to 13. 15.A control method of an air conditioner indoor unit, the control method comprising: The control method of the air conditioner indoor unit of claim 14 comprises: Receiving a power-on signal and controlling the air conditioner indoor unit to start up; Detecting the indoor temperature and adjusting the swing angle of the wind sweeping blades (1) of the air conditioner indoor unit according to the indoor temperature. 16.The control method of claim 15, wherein Before detecting the indoor temperature and adjusting the swing angle of the wind sweeping blades (1) of the air conditioner indoor unit according to the indoor temperature, the control method of the air conditioner indoor unit further comprises: Controlling the air conditioner indoor unit to enter a cool mode to control the wind sweeping blades (1) to switch to a first position; and making the air conditioner indoor unit run in the cool mode for a first preset time length. 17.The control method of claim 15, wherein The method for adjusting the swing angle of the wind sweeping blades (1) of the air conditioner indoor unit according to the indoor temperature comprises: When the indoor temperature is greater than a first preset temperature, controlling the air conditioner indoor unit to enter a surrounding wind mode to control the wind sweeping blades (1) to swing between the first position and a third position; When the indoor temperature is greater than or equal to a second preset temperature and less than or equal to the first preset temperature, controlling the air conditioner indoor unit to enter a breeze mode to control the wind sweeping blades (1) to switch to a second position; When the indoor temperature is less than the second preset temperature, controlling the air conditioner indoor unit to enter a gentle mode to control the wind sweeping blades (1) to switch to the third position.

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