Machine head assembly and air outlet equipment

Abstract

The invention relates to the technical field of household appliances, and discloses a machine head assembly and an air outlet device, the machine head assembly comprises an air duct assembly, the air duct assembly comprises a main air duct, a central air duct and an annular air duct, fan blades and a main motor capable of driving the fan blades to rotate are arranged in the main air duct, and the central air duct and the annular air duct are arranged at one end of the main air duct; the air deflector assembly comprises a plurality of air deflectors, the air deflectors are provided with first positions and second positions, when the air deflectors are located at the first positions, the central air duct is communicated with the main air duct and the outside of the machine head assembly, and the annular air duct is blocked, and when the air deflectors are located at the second positions, the central air duct is blocked, and the annular air duct is communicated with the main air duct and the outside of the machine head assembly; the driving assembly is connected with the air deflector assembly and can drive the air deflector to be switched between the first position and the second position; and the heating assembly is arranged in the annular air duct. When cold air needs to be blown, airflow can pass through the central air duct and does not enter the annular air duct, and dust in the air can be prevented from entering the annular air duct to cause dust accumulation of the heating assembly.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to head unit components and air outlet devices. Background Technology

[0002] Some fans in related technologies have the function of blowing cold air and warm air. Usually, the heating element is placed in the air duct. When blowing cold air, the heating element will form a certain air resistance, and the heating element is prone to accumulating dust when it is not working. Summary of the Invention

[0003] In view of this, the present invention provides a head assembly and an air outlet device to solve the problems of wind resistance formed by the heating element when blowing cold air and dust accumulation in the heating element when it is not in operation.

[0004] In a first aspect, the present invention provides a nose assembly, comprising: The air duct assembly includes a main air duct, a central air duct, and an annular air duct. The annular air duct is located on the outer periphery of the central air duct. The main air duct contains a fan blade and a main motor that can drive the fan blade to rotate. The central air duct and the annular air duct are located at one end of the main air duct. An air guide plate assembly includes multiple air guide plates, each air guide plate having a first position and a second position. In the first position, the central air duct connects to the main air duct and the outside of the head assembly, and the annular air duct is blocked. In the second position, the central air duct is blocked, and the annular air duct connects to the main air duct and the outside of the head assembly. A drive component, connected to the air guide plate assembly, is capable of driving the air guide plate to switch between the first position and the second position; The heating element is located in the annular air duct.

[0005] Beneficial effects: When cold air is needed, the drive unit controls the air guide plate to switch to the first position. The central air duct connects the main air duct and the outside of the head unit, while the annular air duct is blocked. The main motor drives the fan blades to rotate, allowing airflow to pass through the central air duct without entering the annular air duct. This prevents dust in the air from entering the annular air duct and causing dust accumulation on the heating element. Furthermore, the heating element does not create wind resistance for the cold air, ensuring sufficient airflow. When warm air is needed, the drive unit controls the air guide plate to switch to the second position. The central air duct is blocked, and the annular air duct connects the main air duct and the outside of the head unit. The airflow passes through the annular air duct and is heated by the heating element, resulting in warm air. The heating element is located in the annular air duct, and the airflow's concentrating effect ensures even airflow across the heating element, achieving optimal heating performance.

[0006] In one optional embodiment, the air guide plate includes a first plate and a second plate, with an angle between the plane of the first plate and the plane of the second plate, the angle being greater than 0° and less than 180°, the first plate being disposed in the central air duct, and the second plate being disposed in the annular air duct.

[0007] Beneficial effects: The air guide plate includes a first plate and a second plate. The planes of the first and second plates form an angle. Therefore, when the first plate blocks the central air duct, airflow cannot pass through it. At this time, a first vent is formed between adjacent second plates, allowing airflow to pass through. The main air duct connects to the annular air duct through this vent, allowing airflow to pass through. Conversely, when the second plate blocks the annular air duct, airflow cannot pass through it. At this time, a second vent is formed between adjacent first plates, allowing airflow to pass through. The main air duct connects to the central air duct through this vent, allowing airflow to pass through. Because the first and second plates are connected, rotation of the first plate will drive rotation of the second plate, or vice versa. Therefore, when the drive assembly drives the first plate to rotate, it will also drive the second plate to rotate. Only one drive assembly is needed, reducing the number of parts, lowering costs, and facilitating control.

[0008] In one alternative implementation, the plane containing the first plate is perpendicular to the plane containing the second plate.

[0009] Beneficial effects: The plane of the first plate is perpendicular to the plane of the second plate. Therefore, when the first plate blocks the central airflow, airflow cannot pass through the central airflow. At this time, the plane of the second plate is parallel to the axis of the main airflow, and the first clearance between two adjacent second plates is relatively large, allowing airflow to pass through the annular airflow. When the second plate blocks the annular airflow, airflow cannot pass through the annular airflow. At this time, the plane of the first plate is parallel to the axis of the main airflow, and the second clearance between two adjacent first plates is relatively large, allowing airflow to pass through the central airflow. The perpendicularity of the plane of the first plate to the plane of the second plate reduces airflow resistance when passing through the central or annular airflow.

[0010] In one alternative embodiment, the head assembly includes a housing surrounding the outside of the air duct assembly, and the air guide plate is rotatably disposed on the housing or the air duct assembly.

[0011] Beneficial effects: By setting up an outer casing, the air duct components are located inside the casing, resulting in good appearance consistency for the entire head assembly.

[0012] In one optional embodiment, the outer casing includes a first central connecting portion, a first annular connecting portion, and a cylindrical shell, wherein the first plate is rotatably disposed between the first central connecting portion and the first annular connecting portion, and the second plate is rotatably disposed between the first annular connecting portion and the shell.

[0013] Beneficial effects: The outer casing includes a first central connecting part and a first annular connecting part. A first plate is rotatably disposed between the first central connecting part and the first annular connecting part, and a second plate is rotatably disposed between the first annular connecting part and the casing. When the first plate blocks the central air duct, airflow cannot pass through the central air duct. At this time, a first vent is formed between adjacent second plates to allow airflow to pass through, and the main air duct connects to the annular air duct through the first vent. When the second plate blocks the annular air duct, airflow cannot pass through the annular air duct, and a second vent is formed between adjacent first plates to allow airflow to pass through, and the main air duct connects to the central air duct through the second vent. By providing a first central connecting part, a first annular connecting part, and a casing, the positioning and installation of the air guide plate is facilitated, and the number of parts is reduced.

[0014] In one optional embodiment, the air guide plate includes a rotating shaft located at at least one end of the first plate body, and the first central connecting portion and / or the first annular connecting portion are provided with a plurality of first slots along the circumferential direction, with the rotating shaft disposed in the first slot.

[0015] Beneficial effects: The air guide plate includes a rotating shaft located at at least one end of the first plate body, and the rotating shaft is located in the first slot, which can improve assembly efficiency.

[0016] In one optional embodiment, the air guide plate further includes a rocker arm, and the driving assembly includes a rotating component. The rotating component is provided with a plurality of actuating slots spaced apart along the circumference, and the rocker arm is disposed in the actuating slots. When the rotating component rotates, it drives the rocker arm to move, thereby driving the air guide plate to rotate.

[0017] Beneficial effects: The rocker arm is located in the actuation groove, and the rotating shafts at both ends of the first plate are located in the first slot, allowing for quick assembly of the air guide plates. When the rotating component rotates, it drives the rocker arm to move, thereby causing the air guide plates to rotate around their rotating shafts. Therefore, the rotation of one rotating component can simultaneously drive multiple air guide plates to rotate together, resulting in a simpler structure and lower cost.

[0018] In one alternative embodiment, the rotating member has an engaging portion, and the drive assembly further includes: A drive motor is disposed in the housing or the air duct assembly; The drive gear is connected to the output shaft of the drive motor and meshes with the meshing part.

[0019] Beneficial effects: When the drive motor is working, it drives the drive gear to rotate. The drive gear meshes with the meshing part of the rotating part, thereby driving the rotating part to rotate, which in turn drives the rocker arm to rotate to a certain extent, thereby simultaneously driving each air guide plate to flip. The drive assembly has a simple structure and reliable transmission.

[0020] In one alternative embodiment, the drive motor is disposed at the first central connection portion.

[0021] In one alternative embodiment, the drive assembly further includes a fixing plate, and the drive motor is fixed between the first central connecting portion and the fixing plate.

[0022] Beneficial effect: By setting up a fixing plate, the position of the drive motor can be effectively fixed.

[0023] In one alternative embodiment, the housing includes an annular grille corresponding to the annular air duct.

[0024] Beneficial effects: By setting up a ring-shaped grille, the heating components located in the ring-shaped air duct can be concealed, making the appearance more aesthetically pleasing.

[0025] In one optional embodiment, the air duct assembly includes a main air duct structure and a secondary air duct structure. The main air duct structure forms the main air duct inside the main air duct structure. The secondary air duct structure is disposed at one end of the main air duct structure. The secondary air duct structure includes a first annular wall panel and a second annular wall panel. The central air duct is formed on the inner side of the first annular wall panel. The gap between the first annular wall panel and the second annular wall panel forms the annular air duct. The secondary air duct structure is connected to the outer shell and / or the main air duct structure.

[0026] Beneficial effects: The secondary air duct structure includes a first annular wall panel and a second annular wall panel. The inner side of the first annular wall panel forms a central air duct, and the gap between the first and second annular wall panels forms an annular air duct. After the secondary air duct structure is connected to the outer shell and / or the main air duct structure, the central air duct and the annular air duct can be simultaneously connected to the main air duct. The air duct assembly is divided into a main air duct and a secondary air duct structure, which facilitates the processing of each component.

[0027] In one optional embodiment, the first annular wall panel is provided with a second slot, the first annular connecting portion is provided with a plurality of first slots along the circumferential direction, the second slots correspond one-to-one with the first slots provided on the first annular connecting portion, and the rotating shaft located between the first plate body and the second plate body is limited between the first slots and the second slots.

[0028] Beneficial effect: By providing a second slot in the first annular wall panel, the rotating shaft located between the first plate and the second plate is limited between the first slot and the second slot, which can limit the position of the rotating shaft and prevent the rotating shaft from coming out of the first slot.

[0029] In one optional embodiment, the secondary air duct structure includes a second central connecting part, and the drive assembly further includes a drive motor and a fixing plate. The drive motor is fixed between the first central connecting part and the fixing plate. The fixing plate is provided with a mounting shaft, and the center of the rotating part is provided with a mounting through hole. The mounting shaft passes through the mounting through hole and is fixedly connected to the second central connecting part.

[0030] Beneficial effects: The fixed plate is equipped with a mounting shaft, and the center of the rotating part is equipped with a mounting through hole. After the mounting shaft passes through the mounting through hole, it is fixedly connected to the second center connection part. The mounting shaft and the mounting through hole can be used to position the rotating part, ensuring that the rotating part rotates around the axis of the mounting shaft. The fixed plate, the outer shell, the rotating part and the secondary air duct structure can be assembled together, which can improve the assembly stability.

[0031] In one optional embodiment, the second central connecting part is connected to the first annular wall panel by a second connecting rib. Along the radial direction of the main air duct, the second connecting rib gradually tilts away from the main air duct. The air guide plate is disposed between the secondary air duct structure and the outer shell. When the first plate is switched to the second position, along the radial direction of the main air duct, the first plate gradually tilts away from the main air duct.

[0032] Beneficial effects: Along the radial direction of the main air duct, the second connecting rib gradually tilts away from the main air duct, and the second central connecting part is closer to the main air duct. This creates a larger space between the secondary air duct structure and the outer shell to accommodate the installation of the air guide plate assembly, avoiding the unsightly appearance caused by the outer shell protruding outwards. Secondly, the air guide plate is positioned between the secondary air duct structure and the outer shell. When the first plate is switched to the second position, along the radial direction of the main air duct, the first plate gradually tilts away from the main air duct. The tilted first plate makes it easier for the airflow from the main air duct to flow into the annular air duct, reducing airflow resistance and avoiding dead air zones.

[0033] In one optional embodiment, the rotating member and the fixed plate are engaged by a limiting structure, which is used to limit the rotation angle of the rotating member.

[0034] Beneficial effects: By setting a limiting structure, which restricts the rotation angle of the rotating parts, it can be ensured that the air guide plate can only switch between the first position and the second position.

[0035] In one optional embodiment, the rotating component is positioned between the fixed plate and the secondary air duct structure, and the secondary air duct structure is provided with a first limiting part, which limits the axial movement of the rotating component.

[0036] Beneficial effects: By setting a first limiting part in the secondary air duct structure, it is possible to prevent the rotating part from moving axially and causing the rotating shaft of the air guide plate to disengage from the receiving space formed by the second slot and the first slot on the first annular connecting part. This avoids the air guide plate from disengaging from the limiting part of the outer shell and the secondary air duct structure, thus preventing the air guide plate from switching smoothly between the first and second positions and improving assembly stability.

[0037] In one optional embodiment, the drive assembly includes a drive motor and a drive gear, the rotating member has a meshing portion, the drive gear is connected to the output shaft of the drive motor and meshes with the meshing portion, and the auxiliary air duct structure is provided with a second limiting portion, which limits the axial movement of the drive gear.

[0038] Beneficial effect: By setting a second limiting part in the secondary air duct structure, the drive gear can be prevented from moving axially, thus improving assembly stability.

[0039] In one optional embodiment, the main motor has a first operating state of rotating in a first direction and a second operating state of rotating in a second direction; When the main motor is in the first working state, the drive component drives the air guide plate to switch to the first position, and the airflow enters the main air duct after passing through the central air duct and is then blown out. When the main motor is in the second working state, the drive component drives the air guide plate to switch to the second position, and the airflow enters the annular air duct through the main air duct and is then blown out.

[0040] Beneficial effects: When cold air is needed, the drive unit controls the air guide plate to switch to the first position. The central air duct connects the main air duct and the outside of the head unit, and the annular air duct is blocked. The main motor is in the first working state, driving the fan blades to rotate. The airflow enters the main air duct through the central air duct and is then blown out, without entering the annular air duct. This prevents dust in the air from entering the annular air duct and causing dust accumulation on the heating element. Furthermore, the heating element does not create wind resistance for the cold air, ensuring sufficient airflow. When warm air is needed, the drive unit controls the air guide plate to switch to the second position. The central air duct is blocked, and the annular air duct connects the main air duct and the outside of the head unit. The main motor is in the second working state. The airflow enters the annular air duct through the main air duct and is then blown out. The airflow is heated by the heating element as it passes through the annular air duct, resulting in warm air. Because the heating element is close to the air outlet, heat loss during warm air delivery is avoided, reducing heat loss during heating.

[0041] In one alternative implementation, the nose assembly further includes: A first grille and / or a second grille, wherein the first grille is located on the side of the main air duct away from the central air duct, and the second grille is connected to the outer casing and is arranged corresponding to the central air duct.

[0042] Beneficial effects: By setting the first grille and / or the second grille, the appearance of the entire head assembly can be made more aesthetically pleasing, the internal air guide plate assembly can be partially obscured, and the safety of use can be ensured.

[0043] Secondly, the present invention also provides an air outlet device, comprising: The aforementioned head assembly.

[0044] Beneficial effects: When cold air is needed, the drive unit controls the air guide plate to switch to the first position. The central air duct connects the main air duct and the outside of the head unit, while the annular air duct is blocked. The main motor drives the fan blades to rotate, allowing airflow to pass through the central air duct without entering the annular air duct. This prevents dust from entering the annular air duct and causing dust accumulation on the heating element, and the heating element does not create wind resistance for the cold air, ensuring sufficient airflow. When warm air is needed, the drive unit controls the air guide plate to switch to the second position. The central air duct is blocked, and the annular air duct connects the main air duct and the outside of the head unit. The airflow passes through the annular air duct and is heated by the heating element, resulting in warm air. The heating element is located in the annular air duct, and the airflow's concentrating effect ensures even airflow over the heating element, achieving optimal heating performance.

[0045] In one alternative implementation, the air outlet device is a fan or a heater. Attached Figure Description

[0046] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 This is a cross-sectional view of a head assembly according to an embodiment of the present invention when the air guide plate is in the first position; Figure 2 This is a cross-sectional view of a head assembly according to an embodiment of the present invention when the air guide plate is in the second position; Figure 3 This is a front view of a head assembly according to an embodiment of the present invention; Figure 4This is a rear view of a nose cone assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the air guide plate; Figure 6 This is a schematic diagram of the outer casing; Figure 7 for Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram showing the air guide plate installed on the housing and in the first position. Figure 9 This is a schematic diagram showing the air guide plate installed on the housing and in the second position. Figure 10 A schematic diagram of the main air duct structure; Figure 11 This is a schematic diagram of the secondary air duct structure; Figure 12 This is a schematic diagram of the rotating component; Figure 13 This is a schematic diagram of the fixing plate.

[0048] Explanation of reference numerals in the attached figures: 1. Main air duct structure; 101. Main air duct; 102. Guide surface; 103. First connecting part; 2. Secondary air duct structure; 201. Central air duct; 202. Annular air duct; 203. Second central connecting part; 204. First annular wall panel; 205. Second annular wall panel; 206. Annular rib; 207. Second connecting rib; 208. Third connecting rib; 209. Second screw through hole; 210. Second slot; 211. Second connecting part; 212. First limiting part; 213. Second limiting part; 214. Third screw through hole; 3. Main motor; 4. Fan blade; 5. Air guide plate; 501. First plate; 502. Second plate; 5 03. Rotating shaft; 504. Rocker arm; 6. Heating component; 7. Housing; 700. Housing; 701. First central connecting part; 702. First annular connecting part; 703. First connecting rib; 704. First slot; 705. Annular grille; 706. First screw post; 707. Second screw post; 8. Rotating component; 801. Actuating groove; 802. Engaging part; 803. Limiting groove; 804. Mounting through hole; 805. Annular stepped surface; 9. Drive motor; 10. Drive gear; 11. Fixing plate; 1101. First screw through hole; 1102. Limiting rib; 1103. Mounting shaft; 12. First grille; 13. Second grille. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Some fans in related technologies have the function of blowing cold air and warm air. Usually, the heating element is placed in the air duct. When blowing cold air, the heating element will form a certain air resistance, and the heating element is prone to accumulating dust when it is not working.

[0054] The following is combined with Figures 1 to 13 The following describes embodiments of the present invention.

[0055] According to an embodiment of the present invention, in one aspect, a head assembly is provided, including: an air duct assembly, an air guide plate assembly, a drive assembly, and a heating assembly 6.

[0056] The air duct assembly includes a main air duct 101, a central air duct 201, and an annular air duct 202. The annular air duct 202 is located on the outer periphery of the central air duct 201. The main air duct 101 contains a fan blade 4 and a main motor 3 that can drive the fan blade 4 to rotate. The central air duct 201 and the annular air duct 202 are located at one end of the main air duct 101. The air guide plate assembly includes multiple air guide plates 5, which have a first position and a second position. In the first position, the central air duct 201 connects the main air duct 101 and the outside of the head assembly, and the annular air duct 202 is blocked. In the second position, the central air duct 201 is blocked, and the annular air duct 202 connects the main air duct 101 and the outside of the head assembly. The drive assembly is connected to the air guide plate assembly and can drive the air guide plates 5 to switch between the first position and the second position. The heating element 6 is located in the annular air duct 202.

[0057] In this embodiment, when cold air is needed, the drive component controls the air guide plate 5 to switch to the first position. The central air duct 201 connects the main air duct 101 and the outside of the head assembly, and the annular air duct 202 is blocked. The main motor 3 drives the fan blade 4 to rotate. The airflow can pass through the central air duct 201 and will not enter the annular air duct 202. This prevents dust in the air from entering the annular air duct 202 and causing dust accumulation on the heating element 6. Furthermore, the heating element 6 will not cause wind resistance to the cold air, ensuring the airflow volume of the cold air. When warm air is needed, the drive component controls the air guide plate 5 to switch to the second position. The central air duct 201 is blocked, and the annular air duct 202 connects the main air duct 101 and the outside of the head assembly. The airflow passes through the annular air duct 202 and is heated by the heating element 6. Therefore, the blown air is warm air. The heating element 6 is located in the annular air duct 202. The air-gathering effect of the annular air duct 202 ensures that the airflow flows evenly over the heating element 6, achieving the optimal heating effect.

[0058] It should be noted that "multiple" means at least two, and "multiple air guides 5" specifically refers to at least two air guides 5.

[0059] In one specific embodiment, the heating component 6 includes an annular support structure and a heating wire disposed within the annular support structure and extending circumferentially.

[0060] In one embodiment, the air guide plate 5 includes a first plate 501 and a second plate 502. The plane where the first plate 501 is located and the plane where the second plate 502 is located have an angle between them. The angle is greater than 0° and less than 180°. The first plate 501 is located in the central air duct 201, and the second plate 502 is located in the annular air duct 202.

[0061] In this embodiment, the air guide plate 5 includes a first plate 501 and a second plate 502. An angle is formed between the plane of the first plate 501 and the plane of the second plate 502. Therefore, when the first plate 501 blocks the central air duct 201, airflow cannot pass through the central air duct 201. At this time, a first air vent is formed between adjacent second plates 502, allowing airflow to pass through. The main air duct 101 connects to the annular air duct 202 through the first air vent, allowing airflow to pass through the annular air duct 202. When the second plate 502 blocks the annular air duct 202, airflow cannot pass through the annular air duct 202. At this time, a second air vent is formed between adjacent first plates 501, allowing airflow to pass through. The main air duct 101 connects to the central air duct 201 through the second air vent, allowing airflow to pass through the central air duct 201. Since the first plate 501 and the second plate 502 are connected, the rotation of the first plate 501 will drive the rotation of the second plate 502, or the second plate 502 will drive the rotation of the first plate 501. Therefore, when the drive assembly drives the first plate 501 to rotate, it will drive the second plate 502 to rotate. Only one set of drive assembly is needed, which reduces the number of parts, lowers the cost, and makes it easier to control.

[0062] In one embodiment, such as Figure 5 As shown, the plane containing the first plate 501 is perpendicular to the plane containing the second plate 502.

[0063] In this embodiment, the plane of the first plate 501 is perpendicular to the plane of the second plate 502. Therefore, when the first plate 501 blocks the central air duct 201, the airflow cannot pass through the central air duct 201. At this time, the plane of the second plate 502 is parallel to the axis of the main air duct 101, and the first clearance formed between two adjacent second plates 502 is relatively large, allowing the airflow to pass through the annular air duct 202. When the second plate 502 blocks the annular air duct 202, the airflow cannot pass through the annular air duct 202. At this time, the plane of the first plate 501 is parallel to the axis of the main air duct 101, and the second clearance formed between two adjacent first plates 501 is relatively large, allowing the airflow to pass through the central air duct 201. The perpendicularity between the plane of the first plate 501 and the plane of the second plate 502 reduces air resistance when the airflow passes through the central air duct 201 or the annular air duct 202.

[0064] In one specific embodiment, when the air guide plate 5 is in the second position, each of the first plates 501 is formed on the same plane or annular cone surface, or adjacent first plates 501 at least partially overlap, to block the connection between the main air duct 101 and the central air duct 201. When the air guide plate 5 is in the first position, each of the second plates 502 is formed on the same plane or annular cone surface, or adjacent second plates 502 at least partially overlap, to block the connection between the main air duct 101 and the annular air duct 202.

[0065] In one embodiment, such as Figures 6 to 9 The head assembly includes a housing 7, which surrounds the outside of the air duct assembly, and the air guide plate 5 is rotatably disposed on the housing 7 or the air duct assembly.

[0066] In this embodiment, by setting the housing 7, the air duct assembly is located inside the housing 7, and the appearance of the entire head assembly is consistent.

[0067] In one specific embodiment, the air guide plate 5 is rotatably disposed within the housing 7, or the air guide plate 5 is rotatably disposed within the air duct assembly.

[0068] In one specific embodiment, the air duct assembly includes a main air duct structure 1 and a secondary air duct structure 2. The main air duct structure 1 forms a main air duct 101 inside. The secondary air duct structure 2 is located at one end of the main air duct structure 1. The secondary air duct structure 2 is provided with a central air duct 201 and an annular air duct 202. The air guide plate 5 is rotatably disposed in the air duct assembly. Specifically, the air guide plate 5 can be rotatably disposed in the main air duct structure 1 or the secondary air duct structure 2.

[0069] In one embodiment, the outer casing 7 includes a first central connecting portion 701, a first annular connecting portion 702, and a cylindrical shell 700. A first plate 501 is rotatably disposed between the first central connecting portion 701 and the first annular connecting portion 702, and a second plate 502 is rotatably disposed between the first annular connecting portion 702 and the shell 700.

[0070] In this embodiment, by providing a housing 7, the air duct assembly is housed within the housing 7, resulting in good overall appearance consistency for the entire head assembly. The housing 7 includes a first central connecting portion 701 and a first annular connecting portion 702. A first plate 501 is rotatably disposed between the first central connecting portion 701 and the first annular connecting portion 702, and a second plate 502 is rotatably disposed between the first annular connecting portion 702 and the housing 700. When the first plate 501 blocks the central air duct 201, airflow cannot pass through the central air duct 201. At this time, a first vent is formed between adjacent second plates 502 to allow airflow to pass through. The main air duct 101 communicates with the annular air duct 202 through the first vent, allowing airflow to pass through the annular air duct 202. When the second plate 502 blocks the annular air duct 202, the airflow cannot pass through the annular air duct 202. At this time, a second air vent is formed between the adjacent first plates 501 to allow the airflow to pass through. The main air duct 101 is connected to the central air duct 201 through the second air vent, and the airflow can pass through the central air duct 201. By providing the first central connecting part 701, the first annular connecting part 702, and the housing 700 in the outer shell 7, the positioning and installation of the air guide plate 5 is facilitated, and the number of parts is reduced.

[0071] Specifically, the first central connecting part 701 and the first annular connecting part 702 are connected by a plurality of radially distributed first connecting ribs 703.

[0072] Specifically, the outer shell 7 is a one-piece molded structure.

[0073] Specifically, the cylindrical housing 700 encloses the air duct assembly.

[0074] In one embodiment, the air guide plate 5 includes a rotating shaft 503 located at at least one end of the first plate body 501, and a first central connecting portion 701 and / or a first annular connecting portion 702 are provided with a plurality of first slots 704 along the circumferential direction, with the rotating shaft 503 disposed in the first slots 704.

[0075] In this embodiment, the air guide plate 5 includes a rotating shaft 503 located at at least one end of the first plate body 501. The rotating shaft 503 is disposed in the first slot 704, which facilitates the positioning and installation of the air guide plate 5, improves assembly efficiency, and also enables the air guide plate 5 to switch between a first position and a second position under the limitation of the first slot 704.

[0076] Preferably, both the first central connecting portion 701 and the first annular connecting portion 702 are provided with a plurality of first slots 704 along the circumferential direction. The first slots 704 on the first central connecting portion 701 correspond one-to-one with the first slots 704 on the first annular connecting portion 702. The air guide plate 5 includes rotating shafts 503 located at both ends of the first plate body 501, and the rotating shafts 503 at both ends are disposed in the corresponding first slots 704. Specifically, the rotating shaft 503 at one end of the first plate body 501 is disposed in the first slot 704 on the first central connecting portion 701, and the rotating shaft 503 at the other end of the first plate body 501 is disposed in the first slot on the first annular connecting portion 702.

[0077] In one embodiment, the housing 7 includes an annular grille 705, which corresponds to the annular air duct 202.

[0078] In this embodiment, by setting an annular grille 705, the annular grille 705 can cover the heating component 6 located in the annular air duct 202, making the appearance more aesthetically pleasing, and can also prevent users from accidentally putting their hands into the annular air duct 202, which could lead to burns or electric shocks and other electrical safety hazards.

[0079] like Figure 6 As shown, the annular grille 705 has multiple through holes to allow airflow to pass through.

[0080] In one specific embodiment, the annular grille 705 is integrally formed with the housing 700, and the first annular connecting part 702 is disposed on the inner side of the annular grille 705.

[0081] In one embodiment, the air guide plate 5 further includes a rocker arm 504, and the driving component includes a rotating member 8. The rotating member 8 is provided with a plurality of actuating grooves 801 spaced apart along the circumference. The rocker arm 504 is disposed in the actuating grooves 801. When the rotating member 8 rotates, it drives the rocker arm 504 to move, thereby driving the air guide plate 5 to rotate.

[0082] In this embodiment, the rocker arm 504 is located in the actuation groove 801, and the rotating shafts 503 at both ends of the first plate 501 are located in the first slots 704, allowing for quick assembly of the air guide plate 5. When the rotating component 8 rotates, it drives the rocker arm 504 to move, thereby causing the air guide plate 5 to rotate around its rotating shaft 503. Therefore, the rotation of one rotating component 8 can simultaneously drive multiple air guide plates 5 to rotate together, resulting in a simpler structure and lower cost.

[0083] Specifically, the joystick 504 and the first plate 501 are not coplanar.

[0084] Specifically, the rocker arm 504 is connected to the rotating shaft 503 located in the first slot 704 on the first central connecting part 701, or the rocker arm 504 is connected to one end of the first plate 501.

[0085] In one embodiment, the rotating member 8 has a meshing portion 802, and the drive assembly further includes a drive motor 9 and a drive gear 10. The drive motor 9 is disposed in the housing 7 or the air duct assembly; the drive gear 10 is connected to the output shaft of the drive motor 9 and meshes with the meshing portion 802.

[0086] In this embodiment, when the drive motor 9 is working, it drives the drive gear 10 to rotate. The drive gear 10 meshes with the meshing part 802 of the rotating part 8, thereby driving the rotating part 8 to rotate, which in turn drives the rocker arm 504 to rotate to a certain extent, thereby simultaneously driving each air guide plate 5 to flip. The drive assembly has a simple structure and reliable transmission.

[0087] In one specific embodiment, the meshing part 802 has internal meshing teeth, and the drive gear 10 has external meshing teeth. The drive gear 10 is located inside the rotating member 8, which makes the structure of the drive assembly more compact.

[0088] In one embodiment, the drive motor 9 is disposed at the first central connection portion 701.

[0089] In one embodiment, the drive assembly includes a fixing plate 11, and the drive motor 9 is fixed between the first central connection portion 701 and the fixing plate 11.

[0090] In this embodiment, the position of the drive motor 9 can be effectively fixed by setting the fixing plate 11.

[0091] In one embodiment, the fixing plate 11 is fixedly connected to the first central connecting part 701.

[0092] In one specific embodiment, the fixing plate 11 is connected to the first central connecting part 701 by screws and / or snap fasteners.

[0093] Specifically, such as Figure 13 As shown, the fixing plate 11 is provided with a first screw through hole 1101, such as Figure 7 As shown, the first central connecting part 701 is provided with a first screw post 706. The screw passes through the first screw through hole 1101 and is tightened in the first screw post 706 to fix the fixing plate 11 on the first central connecting part 701.

[0094] In one embodiment, the rotating member 8 and the fixed plate 11 are engaged by a limiting structure, which is used to limit the rotation angle of the rotating member 8.

[0095] In this embodiment, by setting a limiting structure to restrict the rotation angle of the rotating component 8, it can be ensured that the air guide plate 5 can only switch between the first position and the second position.

[0096] In one embodiment, the limiting structure includes a limiting groove 803 and a limiting rib 1102. The limiting groove 803 is provided in one of the rotating member 8 and the fixed plate 11, and the limiting rib 1102 is provided in the other of the rotating member 8 and the fixed plate 11. The limiting rib 1102 is adapted to move along the limiting groove 803.

[0097] In this embodiment, the limiting rib 1102 and the limiting groove 803 cooperate to limit the rotation angle of the rotating member 8, which can ensure that the air guide plate 5 can only switch between the first position and the second position.

[0098] In one specific embodiment, when the limiting rib 1102 is located at one end of the limiting groove 803, the air guide plate 5 is in the first position, and when the limiting rib 1102 is located at the other end of the limiting groove 803, the air guide plate 5 is in the second position.

[0099] Specifically in one embodiment, such as Figure 13 As shown, the limiting rib 1102 is provided on the fixing plate 11, as follows: Figure 12 As shown, the limiting groove 803 is provided on the rotating part 8.

[0100] In one embodiment not shown in the figure, the limiting rib 1102 can be provided on the rotating member 8, and the limiting groove 803 can be provided on the fixed plate 11.

[0101] Specifically, the limiting groove 803 is an arc-shaped groove.

[0102] In one embodiment, the fixed plate 11 is provided with one of a mounting through hole 804 and a mounting shaft 1103, and the center of the rotating member 8 is provided with the other of a mounting through hole 804 and a mounting shaft 1103, with the mounting shaft 1103 located in the mounting through hole 804.

[0103] In this embodiment, the mounting shaft 1103 and the mounting through hole 804 cooperate to position the rotating member 8, ensuring that the rotating member 8 rotates around the axis of the mounting shaft 1103.

[0104] Specifically in one embodiment, such as Figure 13 As shown, the mounting shaft 1103 is mounted on the fixing plate 11, as... Figure 12 As shown, the rotating part 8 has a mounting through hole 804 at its center.

[0105] In one embodiment, the air duct assembly includes a main air duct structure 1 and a secondary air duct structure 2. The main air duct structure 1 forms a main air duct 101 inside. The secondary air duct structure 2 is located at one end of the main air duct structure 1. The secondary air duct structure 2 includes a first annular wall panel 204 and a second annular wall panel 205. A central air duct 201 is formed on the inner side of the first annular wall panel 204. The gap between the first annular wall panel 204 and the second annular wall panel 205 forms an annular air duct 202. The secondary air duct structure 2 is connected to the outer shell 7 and / or the main air duct structure 1.

[0106] In this embodiment, the secondary air duct structure 2 includes a first annular wall panel 204 and a second annular wall panel 205. A central air duct 201 is formed on the inner side of the first annular wall panel 204, and an annular air duct 202 is formed by the gap between the first annular wall panel 204 and the second annular wall panel 205. After the secondary air duct structure 2 is connected to the outer shell 7 and / or the main air duct structure 1, the central air duct 201 and the annular air duct 202 can be simultaneously connected to the main air duct 101. The air duct assembly is divided into a main air duct structure 1 and a secondary air duct structure 2, which facilitates the processing of each component.

[0107] refer to Figure 11 The secondary air duct structure 2 includes a second central connecting part 203, an annular rib 206 connected to the inner side of the first annular wall panel 204, the first annular wall panel 204 and the second central connecting part 203 are connected by a plurality of radially arranged second connecting ribs 207, and the second annular wall panel 205 and the first annular wall panel 204 are connected by a plurality of third connecting ribs 208.

[0108] In one specific embodiment, the outer casing 7 is connected to the secondary air duct structure 2 by screws.

[0109] Specifically, the end of the second connecting rib 207 is provided with a second screw through hole 209, and the end of the first connecting rib 703 is provided with a second screw post 707. The second screw post 707 and the second screw through hole 209 correspond one-to-one. After the screw passes through the second screw through hole 209, it is tightened on the second screw post 707 to fix the outer shell 7 and the secondary air duct structure 2.

[0110] In one embodiment, the first annular wall panel 204 is provided with a second slot 210, and the first annular connecting portion 702 is provided with a plurality of first slots 704 along the circumferential direction. The second slot 210 corresponds one-to-one with the first slots 704 provided on the first annular connecting portion 702. The rotating shaft 503 located between the first plate body 501 and the second plate body 502 is limited between the second slot 210 and the first slots 704 of the first annular connecting portion 702.

[0111] In this embodiment, by providing a second slot 210 in the first annular wall panel 204, the rotating shaft 503 located between the first plate 501 and the second plate 502 is limited between the second slot 210 and the first slot 704 of the first annular connecting part 702. This can limit the position of the rotating shaft 503 between the first plate 501 and the second plate 502, preventing the rotating shaft 503 from coming out of the first slot 704. At the same time, it can also effectively prevent the rotating shaft 503 of the air guide plate 5 from moving up, down, left, and right significantly when it rotates.

[0112] In one specific embodiment, an annular rib 206 is connected to the inner side of the first annular wall panel 204, and a second slot 210 is provided on the annular rib 206.

[0113] In one embodiment, the secondary air duct structure 2 includes a second central connection portion 203, and the drive assembly also includes a drive motor 9 and a fixing plate 11. The drive motor 9 is fixed between the first central connection portion 701 and the fixing plate 11. The fixing plate 11 is provided with a mounting shaft 1103. The center of the rotating member 8 is provided with a mounting through hole 804. The mounting shaft 1103 passes through the mounting through hole 804 and is fixedly connected to the second central connection portion 203.

[0114] In this embodiment, the fixed plate 11 is provided with a mounting shaft 1103, and the center of the rotating component 8 is provided with a mounting through hole 804. After the mounting shaft 1103 passes through the mounting through hole 804, it is fixedly connected to the second central connecting part 203. The mounting shaft 1103 and the mounting through hole 804 cooperate to position the rotating component 8, ensuring that the rotating component 8 rotates around the axis of the mounting shaft 1103. The fixed plate 11, the outer shell 7, the rotating component 8 and the secondary air duct structure 2 can be assembled together, which can improve the assembly stability.

[0115] Specifically, the center of the second central connecting part 203 is provided with a third screw through hole 214, and the mounting shaft 1103 is provided with a threaded hole. The screw passes through the third screw through hole 214 and is tightened in the threaded hole.

[0116] In one embodiment, the second central connecting part 203 is connected to the first annular wall panel 204 by the second connecting rib 207. Along the radial direction of the main air duct 101, the second connecting rib 207 gradually tilts away from the main air duct 101. The air guide plate 5 is disposed between the secondary air duct structure 2 and the outer shell 7. When the first plate 501 is switched to the second position, along the radial direction of the main air duct 101, the first plate 501 gradually tilts away from the main air duct 101.

[0117] In this embodiment, along the radial direction of the main air duct 101, the second connecting rib 207 gradually tilts away from the main air duct 101, and the second central connecting part 203 is closer to the main air duct 101, so that a larger space is formed between the secondary air duct structure 2 and the outer shell 7 to accommodate the installation of the air guide plate assembly, avoiding the unsightly appearance caused by the outer shell 7 protruding outward. Secondly, the air guide plate 5 is set between the secondary air duct structure 2 and the outer shell 7. When the first plate 501 is switched to the second position, along the radial direction of the main air duct 101, the first plate 501 gradually tilts away from the main air duct 101. The tilted first plate 501 makes it easier for the airflow from the main air duct 101 to flow into the annular air duct 202, reducing airflow resistance and avoiding airflow dead zones.

[0118] In one embodiment, the rotating member 8 is positioned between the fixed plate 11 and the secondary air duct structure 2. The secondary air duct structure 2 is provided with a first limiting part 212, which limits the axial movement of the rotating member 8.

[0119] In this embodiment, by providing a first limiting part 212 in the secondary air duct structure 2, it is possible to prevent the rotating part 8 from moving axially and causing the rotating shaft 503 of the air guide plate 5 to disengage from the receiving space formed by the second slot 210 and the first slot 704 on the first annular connecting part 702. This avoids the air guide plate 5 from disengaging from the housing 7 and the limiting part of the secondary air duct structure 2 and thus not being able to smoothly switch between the first and second positions, thereby improving assembly stability.

[0120] In one specific embodiment, the rotating member 8 is provided with an annular stepped surface 805, and the first limiting part 212 is annular, abutting against the annular stepped surface 805. In another specific embodiment, the first limiting part 212 is annular, the rotating member 8 is provided with an annular stepped surface 805, and there is a certain gap between the first limiting part 212 and the annular stepped surface 805 to prevent the rotating member 8 from moving axially and causing the rotating shaft 503 of the air guide plate 5 to disengage from the receiving space formed by the second slot 210 and the first slot 704 on the first annular connecting part 702, thereby preventing the air guide plate 5 from disengaging from the limiting of the outer shell 7 and the secondary air duct structure 2 and thus failing to smoothly switch between the first position and the second position.

[0121] In one embodiment, the drive assembly includes a drive motor 9 and a drive gear 10. The rotating member 8 has a meshing part 802. The drive gear 10 is connected to the output shaft of the drive motor 9 and meshes with the meshing part 802. The secondary air duct structure 2 is provided with a second limiting part 213, which limits the axial movement of the drive gear 10.

[0122] In this embodiment, by providing a second limiting part 213 in the secondary air duct structure 2, the drive gear 10 can be prevented from moving axially, thereby improving assembly stability.

[0123] In one specific embodiment, the main air duct structure 1 is provided with a guide surface 102 at one end facing the secondary air duct structure 2. The guide surface 102 can realize the connection between the main air duct 101 and the annular air duct 202. The outer edge of the guide surface 102 is provided with a plurality of first connecting parts 103, and the secondary air duct structure 2 is provided with a plurality of second connecting parts 211. The first connecting parts 103 and the second connecting parts 211 are fixedly connected.

[0124] In one specific embodiment, the first connecting part 103 is a screw through hole, and the second connecting part 211 is a screw post.

[0125] In one embodiment, the main motor 3 has a first working state of rotating in a first direction and a second working state of rotating in a second direction. When the main motor 3 is in the first working state, the drive component drives the air guide plate 5 to switch to the first position, and the airflow enters the main air duct 101 after passing through the central air duct 201 and is then blown out. When the main motor 3 is in the second working state, the drive component drives the air guide plate 5 to switch to the second position, and the airflow enters the annular air duct 202 after passing through the main air duct 101 and is then blown out.

[0126] In this embodiment, when cold air is needed, the drive component controls the air guide plate 5 to switch to the first position. The central air duct 201 connects the main air duct 101 and the outside of the head assembly, and the annular air duct 202 is blocked. The main motor 3 is in the first working state. The main motor 3 drives the fan blade 4 to rotate. The airflow enters the main air duct 101 through the central air duct 201 and is blown out. It will not enter the annular air duct 202, which can prevent dust in the air from entering the annular air duct 202 and causing dust to accumulate in the heating component 6. In addition, the heating component 6 will not cause wind resistance to the cold air, which can ensure the air volume of the cold air. When warm air is needed, the drive component controls the air guide plate 5 to switch to the second position. The central air duct 201 is blocked and the annular air duct 202 connects the main air duct 101 and the outside of the head assembly. The main motor 3 is in the second working state. The airflow enters the annular air duct 202 through the main air duct 101 and is blown out. The airflow is heated by the heating component 6 when it passes through the annular air duct 202. Therefore, the blown air is warm air. Since the heating component 6 is close to the air outlet side, it can avoid the loss of warm air when it is delivered and reduce the loss of heat when heating.

[0127] In one specific embodiment, the first direction is one of a counterclockwise direction and a clockwise direction, and the second direction is the other of a counterclockwise direction and a clockwise direction.

[0128] In one specific embodiment, the main motor 3 is in a first working state, the fan blade 4 rotates in a first direction, the main air duct 101 faces the user, and the airflow enters the main air duct 101 after passing through the central air duct 201 and is blown out through the main air duct 101; the main motor 3 is in a second working state, the fan blade 4 rotates in a second direction, the central air duct 201 and the annular air duct 202 face the user, and the airflow enters the main air duct 101 and is blown out through the annular air duct 202.

[0129] In one embodiment, the head assembly further includes a first grille 12 and / or a second grille 13, wherein the first grille 12 is located on the side of the main air duct 101 away from the central air duct 201, and the second grille 13 is connected to the housing 7 and is correspondingly arranged to the central air duct 201.

[0130] In this embodiment, by setting the first grille 12 and / or the second grille 13, the appearance of the entire head assembly can be made more aesthetically pleasing, the internal air guide plate assembly can be partially obscured, and safe use can be ensured.

[0131] Specifically, when the main motor 3 is in the first working state, the fan blade 4 rotates in the first direction, driving the airflow. The airflow enters from the second grille 13 and is blown out from the first grille 12. When the main motor 3 is in the second working state, the fan blade 4 rotates in the second direction, driving the airflow. The airflow enters from the first grille 12 and is blown out through the annular grille 705.

[0132] In one specific embodiment, the first grille 12 is the front grille, and the second grille 13 is the rear grille.

[0133] In one embodiment, the main air duct structure 1 is connected to a oscillating motor.

[0134] In this embodiment, the oscillating motor enables the head assembly to oscillate, achieving a wider airflow range. When blowing cold air, the first grille 12 faces the user; when blowing warm air, the second grille 13 of the oscillating assembly faces the user.

[0135] In one specific embodiment, the oscillating motor can realize the pitching and swaying of the head assembly.

[0136] According to an embodiment of the present invention, another aspect provides an air outlet device, including the head assembly provided in the above embodiments.

[0137] When cold air is needed, the drive assembly controls the air guide plate 5 to switch to the first position. The central air duct 201 connects the main air duct 101 and the outside of the head assembly, while the annular air duct 202 is blocked. The main motor 3 drives the fan blades 4 to rotate, allowing airflow to pass through the central air duct 201 without entering the annular air duct 202. This prevents dust from entering the annular air duct 202 and causing dust accumulation on the heating element 6. Furthermore, the heating element 6 does not create wind resistance for the cold air, ensuring sufficient airflow. When warm air is needed, the drive assembly controls the air guide plate 5 to switch to the second position. The central air duct 201 is blocked, and the annular air duct 202 connects the main air duct 101 and the outside of the head assembly. The airflow passes through the annular air duct 202 and is heated by the heating element 6, resulting in warm air. The heating element 6 is located in the annular air duct 202, and the airflow concentration effect of the annular air duct 202 ensures that the airflow passes evenly over the heating element 6, achieving optimal heating performance.

[0138] In one specific embodiment, the air outlet device includes a body with a fixing hole, and the output shaft of the oscillating motor is inserted into the fixing hole, thereby enabling the head assembly to oscillate relative to the body.

[0139] In one embodiment, the air outlet device is a fan or a heater.

[0140] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A head assembly, characterized in that, include: The air duct assembly includes a main air duct (101), a central air duct (201), and an annular air duct (202). The annular air duct (202) is located on the outer periphery of the central air duct (201). The main air duct (101) is provided with a fan blade (4) and a main motor (3) that can drive the fan blade (4) to rotate. The central air duct (201) and the annular air duct (202) are located at one end of the main air duct (101). The air guide plate assembly includes a plurality of air guide plates (5), the plurality of air guide plates (5) having a first position and a second position, wherein in the first position, the central air duct (201) connects the main air duct (101) and the outside of the head assembly, and the annular air duct (202) is blocked; in the second position, the central air duct (201) is blocked and the annular air duct (202) connects the main air duct (101) and the outside of the head assembly; A drive component, connected to the air guide plate assembly, is capable of driving the air guide plate (5) to switch between the first position and the second position; The heating element (6) is located in the annular air duct (202).

2. The head assembly according to claim 1, characterized in that, The air guide plate (5) includes a first plate (501) and a second plate (502). The plane where the first plate (501) is located and the plane where the second plate (502) is located have an angle between them. The angle is greater than 0° and less than 180°. The first plate (501) is located in the central air duct (201), and the second plate (502) is located in the annular air duct (202).

3. The head assembly according to claim 2, characterized in that, The plane containing the first plate (501) is perpendicular to the plane containing the second plate (502).

4. The head assembly according to claim 2, characterized in that, The head assembly includes a housing (7) surrounding the outside of the air duct assembly, and the air guide plate (5) is rotatably disposed on the housing (7) or the air duct assembly.

5. The head assembly according to claim 4, characterized in that, The outer shell (7) includes a first central connecting part (701), a first annular connecting part (702) and a cylindrical shell (700). The first plate (501) is rotatably disposed between the first central connecting part (701) and the first annular connecting part (702), and the second plate (502) is rotatably disposed between the first annular connecting part (702) and the shell (700).

6. The head assembly according to claim 5, characterized in that, The air guide plate (5) includes a rotating shaft (503) located at at least one end of the first plate body (501), and the first central connecting part (701) and / or the first annular connecting part (702) are provided with a plurality of first slots (704) in the circumferential direction, and the rotating shaft (503) is disposed in the first slot (704).

7. The head assembly according to claim 6, characterized in that, The air guide plate (5) also includes a rocker arm (504), and the driving component includes a rotating component (8). The rotating component (8) is provided with a plurality of actuating grooves (801) spaced apart along the circumference. The rocker arm (504) is located in the actuating grooves (801). When the rotating component (8) rotates, it drives the rocker arm (504) to move, thereby driving the air guide plate (5) to rotate.

8. The head assembly according to claim 7, characterized in that, The rotating member (8) has an engaging portion (802), and the driving assembly further includes: A drive motor (9) is disposed in the housing (7) or the air duct assembly; The drive gear (10) is connected to the output shaft of the drive motor (9) and meshes with the meshing part (802).

9. The head assembly according to claim 8, characterized in that, The drive motor (9) is located at the first central connection part (701).

10. The head assembly according to claim 8, characterized in that, The drive assembly also includes a fixing plate (11), and the drive motor (9) is fixed between the first central connecting part (701) and the fixing plate (11).

11. The head assembly according to any one of claims 4 to 10, characterized in that, The outer casing (7) includes an annular grille (705) which corresponds to the annular air duct (202).

12. The head assembly according to any one of claims 7 to 10, characterized in that, The air duct assembly includes a main air duct structure (1) and a secondary air duct structure (2). The main air duct structure (1) forms the main air duct (101) inside. The secondary air duct structure (2) is located at one end of the main air duct structure (1). The secondary air duct structure (2) includes a first annular wall panel (204) and a second annular wall panel (205). The central air duct (201) is formed inside the first annular wall panel (204). The gap between the first annular wall panel (204) and the second annular wall panel (205) forms the annular air duct (202). The secondary air duct structure (2) is connected to the outer shell (7) and / or the main air duct structure (1).

13. The head assembly according to claim 12, characterized in that, The first annular wall panel (204) is provided with a second slot (210), and the first annular connecting part (702) is provided with a plurality of first slots (704) along the circumferential direction. The second slot (210) corresponds one-to-one with the first slots (704) provided on the first annular connecting part (702). The rotating shaft (503) located between the first plate body (501) and the second plate body (502) is limited between the first slot (704) and the second slot (210).

14. The head assembly according to claim 12, characterized in that, The secondary air duct structure (2) includes a second central connection part (203). The drive assembly also includes a drive motor (9) and a fixing plate (11). The drive motor (9) is fixed between the first central connection part (701) and the fixing plate (11). The fixing plate (11) is provided with a mounting shaft (1103). The center of the rotating part (8) is provided with a mounting through hole (804). The mounting shaft (1103) passes through the mounting through hole (804) and is fixedly connected to the second central connection part (203).

15. The head assembly according to claim 14, characterized in that, The second central connecting part (203) is connected to the first annular wall panel (204) through the second connecting rib (207). Along the radial direction of the main air duct (101), the second connecting rib (207) gradually tilts away from the main air duct (101). The air guide plate (5) is disposed between the secondary air duct structure (2) and the outer shell (7). When the first plate (501) is switched to the second position, along the radial direction of the main air duct (101), the first plate (501) gradually tilts away from the main air duct (101).

16. The head assembly according to claim 14, characterized in that, The rotating component (8) and the fixed plate (11) cooperate through a limiting structure, which is used to limit the rotation angle of the rotating component (8).

17. The head assembly according to claim 14, characterized in that, The rotating component (8) is located between the fixed plate (11) and the secondary air duct structure (2). The secondary air duct structure (2) is provided with a first limiting part (212), which limits the axial movement of the rotating component (8).

18. The head assembly according to claim 12, characterized in that, The drive assembly includes a drive motor (9) and a drive gear (10). The rotating part (8) has a meshing part (802). The drive gear (10) is connected to the output shaft of the drive motor (9) and meshes with the meshing part (802). The auxiliary air duct structure (2) is provided with a second limiting part (213), which limits the axial movement of the drive gear (10).

19. The head assembly according to any one of claims 1 to 10, 13 to 18, characterized in that, The main motor (3) has a first working state of rotating in a first direction and a second working state of rotating in a second direction; When the main motor (3) is in the first working state, the drive assembly drives the air guide plate (5) to switch to the first position, and the airflow enters the main air duct (101) after passing through the central air duct (201) and is then blown out; When the main motor (3) is in the second working state, the drive assembly drives the air guide plate (5) to switch to the second position, and the airflow enters the annular air duct (202) through the main air duct (101) and is then blown out.

20. The head assembly according to any one of claims 4 to 10, 13 to 18, characterized in that, The head assembly also includes: The first grille (12) and / or the second grille (13) are provided on the side of the main air duct (101) away from the central air duct (201), and the second grille (13) is connected to the outer shell (7) and is provided correspondingly to the central air duct (201).

21. An air outlet device, characterized in that, include: The nose assembly according to any one of claims 1 to 20.

22. The air outlet device according to claim 21, characterized in that, The air outlet device is a fan or a heater.

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