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 air outlet equipment, the machine head assembly comprises a main air duct, a central air duct and an annular air duct, and fan blades and a main motor capable of driving the fan blades to rotate are arranged in the main air duct; the air guide plate assembly comprises a plurality of air guide plates, the air guide plates are provided with closing positions for closing the central air duct and opening positions for opening the central air duct, when the air guide plates are located at the opening positions, a gap between every two adjacent air guide plates is suitable for airflow to pass through, and the open area S of the air guide plate assembly is smaller than or equal to 25000mm; the heating assembly is arranged in the annular air duct; the machine head assembly has a cold air mode and a warm air mode, in the cold air mode, the air guide plate is located at the opening position, and in the warm air mode, the air guide plate is located at the closing position.

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] In related technologies, the cooling and heating circulating fan has an integrated cooling and heating duct, which requires a dust filter to prevent dust from entering the duct. The dust filter increases the air intake area resistance, thus affecting the air output performance. In addition, adding a dust filter increases costs and reduces production efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a head assembly and an air outlet device to solve the problem of high cost caused by dust removal filters being installed in the air duct in related technologies.

[0004] In a first aspect, the present invention provides a nose assembly, comprising: The system includes a main air duct, a central air duct, and an annular air duct. The central air duct and the annular air duct are located at one end of the main air duct, and the annular air duct is located on the outer periphery of the central air duct. The main air duct contains fan blades and a main motor that can drive the fan blades to rotate. An air guide plate assembly includes multiple air guide plates, each air guide plate having a closed position for closing the central air duct and an open position for opening the central air duct. When the air guide plate is in the open position, the gap between two adjacent air guide plates is suitable for airflow. The flow area of ​​the air guide plate assembly is S, where S≤25000 mm². The heating element is located in the annular air duct; The head assembly has a cold air mode and a warm air mode. In the cold air mode, the air guide plate is in the open position, and in the warm air mode, the air guide plate is in the closed position.

[0005] Beneficial effects: When cooling is required, the heating element is not activated, and the air guide vanes are in the open position. The gap between adjacent air guide vanes allows for airflow, which can pass through both the central and annular air ducts simultaneously, ensuring sufficient cooling airflow. Since the flow area of ​​the air guide vane assembly is S (S≤25000 mm²), its small size necessitates a slight opening angle, eliminating the need for a dust filter. Furthermore, the air guide vane assembly provides protection, eliminating the need for a protective grille on the side of the central air duct furthest from the main air duct, thus saving costs. Simultaneously, the airflow passing through both the annular and central air ducts ensures sufficient airflow without affecting airflow performance. When warm air is required, the heating element is activated, and the air guide vanes are closed. Airflow cannot enter the central air duct; instead, it is heated as it flows through the annular air duct. In warm air mode, air enters from the main air duct, ensuring sufficient intake volume without affecting warm air output performance and guaranteeing heating effectiveness.

[0006] In one optional implementation, S≤19200 mm², and / or 15000 mm²≤S≤25000 mm², and / or, when the air guide plate is in the open position, the maximum gap between two adjacent air guide plates is d, where d≤8.6 mm.

[0007] In one optional embodiment, the air guide plate is fan-shaped, and the gap between two adjacent air guide plates gradually increases along the radial direction of the main air duct.

[0008] 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; In the cold air mode, the main motor is in the first working state, the air guide plate is in the open position, and the airflow is driven through the central air duct and the annular air duct into the main air duct. In the warm air mode, the main motor is in the second working state, the air guide plate is in the closed position, and the airflow is driven through the main air duct and then into the annular air duct.

[0009] Beneficial effects: When cooling is required, the heating element is not working, the main motor is in its first operating state, and the air guide plate is in the open position. The gap between two adjacent air guide plates is suitable for airflow. The airflow simultaneously passes through the central air duct and the annular air duct before entering the main air duct. Since the flow area of ​​the air guide plate assembly is S (S≤25000 mm²), the relatively small flow area can prevent dust from entering the main air duct and the annular air duct. When warm air is required, the heating element is working, the main motor is in its second operating state, the air guide plate is in the closed position, the fan blades rotate, driving the airflow. The airflow enters the main air duct, then enters the annular air duct, and is blown out through the annular air duct. Because the heating element is close to the air outlet, heat loss during hot air delivery is avoided, reducing heat loss during heating. Furthermore, the heating element is located in the annular air duct, and the airflow concentration effect of the annular air duct ensures that the airflow flows evenly over the heating element, achieving optimal heating effect.

[0010] In one optional embodiment, the head assembly includes an air duct structure, the air duct structure including a first annular wall plate, a second annular wall plate and a first connecting wall plate, the inner side of the first annular wall plate forms the main air duct, the inner diameter of the second annular wall plate is larger than the inner diameter of the first annular wall plate, the annular air duct is disposed on the inner side of the second annular wall plate, and the first connecting wall plate connects the first annular wall plate and the second annular wall plate.

[0011] Beneficial effects: The air duct structure includes a first annular wall panel, a second annular wall panel, and a first connecting wall panel. The inner side of the first annular wall panel forms the main air duct. The inner diameter of the second annular wall panel is larger than the inner diameter of the first annular wall panel. The annular air duct is located on the inner side of the second annular wall panel. The air duct structure is simple and has few parts.

[0012] In one alternative embodiment, the head assembly includes a housing, the housing including a first annular connecting portion, the area between the second annular wall panel and the first annular connecting portion forming at least a portion of the annular air duct, and the inner side of the first annular connecting portion forming at least a portion of the central air duct. And / or, the area between the second annular wall panel and the air guide plate assembly constitutes at least a portion of the annular air duct; And / or, the head assembly further includes a pressure cap connected to the housing or the pressure cap connected to the air duct structure, the pressure cap including a second annular connecting portion, the area between the second annular wall panel and the second annular connecting portion forming at least a portion of the annular air duct, and the inner side of the second annular connecting portion forming at least a portion of the central air duct.

[0013] In one alternative embodiment, the first connecting wall panel is inclined and / or the air guide plate is inclined, and when the air guide plate is in the closed position, the airflow flows along the inclined first connecting wall panel and / or the air guide plate.

[0014] In one optional embodiment, the first connecting wall panel or the second annular wall panel is provided with a snap-fit ​​portion, and the heating component is snapped into the snap-fit ​​portion.

[0015] Beneficial effects: The first connecting wall panel or the second annular wall panel is provided with a snap-fit ​​part, which facilitates the installation of the heating component.

[0016] In one alternative embodiment, the head assembly further includes a pressure cap, the pressure cap comprising a second central connecting portion and a second annular connecting portion, and the air guide plate comprising a plate body rotatably disposed on the second central connecting portion and the second annular connecting portion.

[0017] Beneficial effects: The pressure cap includes a second central connecting part and a second annular connecting part. The air guide plate includes a plate body, which is rotatably disposed on the second central connecting part and the second annular connecting part. When the air guide plate is in the closed position, each plate body is formed on the same plane or an annular cone surface, or adjacent plate bodies at least partially overlap, thereby blocking the connection between the main air duct and the central air duct. When the air guide plate is in the open position, a gap is formed between two adjacent air guide plates to allow airflow to pass through, thus connecting the main air duct and the central air duct. By providing a second central connecting part and a second annular connecting part on the pressure cap, the positioning and installation of the air guide plate is facilitated, and the number of parts is reduced.

[0018] In one optional embodiment, the air guide plate includes a rotating shaft located at at least one end of the plate body, and the second central connecting portion and / or the second annular connecting portion are provided with a plurality of first slots, the rotating shaft being disposed in the first slots.

[0019] Beneficial effects: The air guide plate includes a rotating shaft located at at least one end of the plate body. The rotating shaft is located in the first slot, which facilitates the positioning and installation of the air guide plate and can improve assembly efficiency.

[0020] In one optional embodiment, the air guide plate further includes a rocker arm, and the head assembly further includes a drive assembly. The drive assembly includes a rotating component, which is provided with a plurality of actuating slots spaced apart along the circumference. 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.

[0021] Beneficial effects: The rocker arm is located in the actuation groove, and the rotating shafts at both ends of the plate are located in the first slot, allowing for quick assembly of the air guide plate. When the rotating component rotates, it drives the rocker arm to move, thereby causing the air guide plate to rotate around its rotating shaft. 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.

[0022] In one alternative embodiment, the rotating member has an engaging portion, and the drive assembly further includes: A drive motor is fixed relative to the second central connection portion and / or the pressure cover; The drive gear is connected to the output shaft of the drive motor and meshes with the meshing part.

[0023] 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.

[0024] In one optional embodiment, the drive assembly further includes a fixing plate, which is fixed to the second central connection portion, the drive motor is fixed to the fixing plate, and the rotating member is rotatably engaged with the fixing plate.

[0025] Beneficial effects: By setting a fixing plate, the position of the drive motor can be effectively fixed. In addition, the rotating parts are rotated and cooperate with the fixing plate, and the fixing plate can position and install the rotating parts.

[0026] 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.

[0027] 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 open and closed positions.

[0028] In one optional embodiment, the fixed plate is provided with a mounting shaft, the rotating member is provided with a mounting through hole, the mounting shaft passes through the mounting through hole, and the mounting shaft is fixedly connected to the second central connecting part.

[0029] Beneficial effects: After the mounting shaft passes through the mounting hole, it is fixedly connected to the second center connection part, which can connect the fixed plate, rotating parts and pressure cover into a whole, thereby improving assembly stability and assembly efficiency.

[0030] In one optional embodiment, the rotating member is positioned between the fixed plate and the second central connecting portion, the second central connecting portion being provided with a first limiting portion, the first limiting portion restricting the rotating member from moving axially.

[0031] Beneficial effect: The first limiting part restricts the axial movement of the rotating part, which can prevent the rotating part from moving along the axial direction.

[0032] In one alternative embodiment, the second central connecting portion is provided with a second limiting portion, which restricts the drive gear from moving axially.

[0033] Beneficial effect: By setting a second limiting part, the drive gear can be prevented from moving axially.

[0034] In one optional embodiment, the head assembly includes a housing, the air duct structure, the air guide plate assembly and the heating component are all disposed within the housing, the pressure cover is connected to the housing, and the air guide plate assembly is disposed between the pressure cover and the housing.

[0035] Beneficial effects: The head unit includes the outer shell, air duct structure, air guide plate assembly and heating element, all of which are located inside the outer shell, resulting in good appearance consistency for the entire head unit.

[0036] In one optional embodiment, the head assembly includes a housing, the housing including a cylindrical shell, a first central connecting portion and a first annular connecting portion, the cylindrical shell surrounding the outside of the air duct structure, the second central connecting portion correspondingly connected to the first central connecting portion, and the second annular connecting portion correspondingly connected to the first annular connecting portion.

[0037] In one optional embodiment, the air guide plate includes a rotating shaft located at at least one end of the plate body, the first annular connecting portion is provided with a plurality of second slots, the pressure cover is fixedly connected to the outer shell, the second annular connecting portion is provided with a first slot, the first slot corresponds one-to-one with the second slots provided on the first annular connecting portion, and the rotating shaft located on the plate body away from the first central connecting portion is limited between the second slots and the first slots.

[0038] Beneficial effect: By setting a first slot in the second annular connecting part and setting multiple second slots in the first annular connecting part, the rotating shaft located on the plate away from the first central connecting part is limited between the second slots and the first slots, which can limit the position of the rotating shaft and prevent the rotating shaft from coming out of the second slots.

[0039] In one alternative embodiment, the housing includes an annular grille disposed opposite to the annular air duct.

[0040] Beneficial effects: By setting up a ring-shaped grille, the heating components located in the ring-shaped air duct can be shielded, making the appearance more aesthetically pleasing and preventing dust from entering the ring-shaped air duct.

[0041] In one alternative implementation, the nose assembly further includes: The first grille is located on the side of the main air duct away from the central air duct.

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

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

[0044] Beneficial effects: When cooling is required, the heating element is off, and the air guide plates are in the open position. The gap between adjacent air guide plates allows for airflow, which can pass through both the central and annular air ducts simultaneously, ensuring sufficient cooling airflow. Since the flow area of ​​the air guide plate assembly is S (≤25000 mm²), the small flow area necessitates a slight opening angle, eliminating the need for a dust filter. Furthermore, the air guide plate assembly provides protection, eliminating the need for a protective grille on the side of the central air duct furthest from the main duct, saving costs. Simultaneously, the airflow passing through both the annular and central ducts ensures sufficient airflow without affecting airflow performance. When warm air is required, the heating element is on, and the air guide plates are closed. Airflow cannot enter the central air duct but is heated as it flows through the annular air duct. In warm air mode, air enters from the main duct, ensuring sufficient intake volume without affecting warm air output performance and guaranteeing heating effect.

[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 schematic diagram of a head assembly according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a head unit in cold air mode according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of a head unit assembly in warm air mode according to an embodiment of the present invention; Figure 4 This is an exploded view of a nose cone assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the air duct structure; Figure 6 This is a schematic diagram of the air guide plate; Figure 7 This is a schematic diagram of the outer casing; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of a rotating component; Figure 10 This is a schematic diagram of the drive motor; Figure 11 This is a schematic diagram of the driving gear; Figure 12 This is a schematic diagram of the fixing plate; Figure 13 This is a schematic diagram of the capping mechanism.

[0048] Explanation of reference numerals in the attached figures: 1. Air duct structure; 101. Main air duct; 102. Central air duct; 103. Annular air duct; 104. First annular wall panel; 105. Second annular wall panel; 106. First connecting wall panel; 107. Snap-fit ​​part; 2. Fan blade; 3. Main motor; 4. Air guide plate; 401. Plate body; 402. Rotating shaft; 403. Rocker arm; 5. Heating component; 6. Housing; 600. Housing; 601. First central connecting part; 602. First annular connecting part; 603. First connecting rib; 604. Second slot; 605. Annular grille; 606. First screw post; 607. Second screw post; 7. Rotating component; 7 01. Actuating groove; 702. Engaging part; 703. Limiting groove; 704. Mounting through hole; 705. Annular stepped surface; 8. Drive motor; 801. Second screw through hole; 9. Drive gear; 10. Fixing plate; 1001. First screw through hole; 1002. Limiting rib; 1003. Mounting shaft; 11. Pressure cap; 1101. Second center connecting part; 1102. Second annular connecting part; 1103. First slot; 1104. Second connecting rib; 1105. Third screw through hole; 1106. First limiting part; 1107. Second limiting part; 1108. Fourth screw through hole; 12. First 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] The following is combined with Figures 1 to 13 The following describes embodiments of the present invention.

[0054] According to an embodiment of the present invention, in one aspect, a head assembly is provided, including a main air duct 101, a central air duct 102, an annular air duct 103, an air guide plate assembly, and a heating assembly 5.

[0055] The central air duct 102 and the annular air duct 103 are located at one end of the main air duct 101. The annular air duct 103 is located on the outer periphery of the central air duct 102. The main air duct 101 contains a fan blade 2 and a main motor 3 that can drive the fan blade 2 to rotate. The air guide plate assembly includes multiple air guide plates 4, which have a closed position for closing the central air duct 102 and an open position for opening the central air duct 102. When the air guide plate 4 is in the open position, the gap between two adjacent air guide plates 4 is suitable for airflow. The flow area of ​​the air guide plate assembly is S, where S≤25000 mm². The heating element 5 is located in the annular air duct 103. The head assembly has a cold air mode and a warm air mode. In the cold air mode, the air guide plate 4 is in the open position, and in the warm air mode, the air guide plate 4 is in the closed position.

[0056] In this embodiment, when air cooling is required, the heating element 5 is not operational, and the air guide plate 4 is in the open position. The gap between two adjacent air guide plates 4 is suitable for airflow. The airflow can pass through both the central air duct 102 and the annular air duct 103 simultaneously, thus ensuring the airflow volume of the cold air. Since the flow area of ​​the air guide plate assembly is S, where S≤25000 mm², the flow area of ​​the air guide plate assembly is relatively small. Therefore, the air guide plate 4 can be opened at a slight angle, eliminating the need for a dust filter. Furthermore, since the air guide plate assembly can provide protection, the protective grille on the side of the central air duct 102 away from the main air duct 101 can be eliminated, saving costs. Simultaneously, the airflow passes through both the annular air duct 103 and the central air duct 102, ensuring sufficient airflow without affecting the airflow performance. When warm air is needed, the heating element 5 is activated and the air guide plate 4 is in the closed position, preventing airflow from entering the central air duct 102. The airflow is heated as it flows through the annular air duct 103. In warm air mode, air is drawn in from the main air duct 101, ensuring sufficient air intake without affecting the warm air output performance and guaranteeing the heating effect.

[0057] It should be noted that "multiple" means at least two, and "multiple air guides 4" specifically refers to at least two air guides 4.

[0058] In one embodiment, S≤19200mm², and / or 15000mm²≤S≤25000mm², and / or, when the air guide plate 4 is in the open position, the maximum gap between two adjacent air guide plates 4 is d, where d≤8.6mm.

[0059] In this embodiment, by ensuring that S≤19200mm², and / or 15000mm²≤S≤25000mm², and / or, when the air guide plate 4 is in the open position, the maximum gap between two adjacent air guide plates 4 is d, where d≤8.6mm, the dust filter can be removed, or the dust filter and the protective filter of the central air duct 102 can be removed, while simultaneously satisfying the air outlet performance.

[0060] In one embodiment, the air guide plate 4 is fan-shaped, and the gap between two adjacent air guide plates 4 gradually increases along the radial direction of the main air duct 101, with the maximum gap between two adjacent air guide plates 4 being d.

[0061] In this embodiment, the air guide plate 4 is fan-shaped, and the gap between two adjacent air guide plates 4 gradually increases along the radial direction of the main air duct 101, which can guide the airflow.

[0062] In one embodiment, the main motor 3 has a first operating state of rotating in a first direction and a second operating state of rotating in a second direction; in the cooling mode, the main motor 3 is in the first operating state, such as... Figure 2As shown, the air guide plate 4 is in the open position, driving the airflow through the central air duct 102 and the annular air duct 103 into the main air duct 101; in the warm air mode, the main motor 3 is in the second working state, as shown... Figure 3 As shown, the air guide plate 4 is in the closed position, driving the airflow through the main air duct 101 and into the annular air duct 103.

[0063] In this embodiment, when air cooling is required, the heating element 5 is not working, the main motor 3 is in the first working state, the air guide plate 4 is in the open position, and the gap between two adjacent air guide plates 4 is suitable for airflow to pass through. The airflow simultaneously passes through the central air duct 102 and the annular air duct 103 and enters the main air duct 101. Since the flow area of ​​the air guide plate assembly is S, S≤25000mm², the flow area of ​​the air guide plate assembly is small, which can block dust from entering the main air duct 101 and the annular air duct 103. When warm air is needed, the heating element 5 operates, the main motor 3 is in the second operating state, the air guide plate 4 is in the closed position, the fan blade 2 rotates, driving the airflow. The airflow enters the main air duct 101 and then enters the annular air duct 103, and is blown out through the annular air duct 103. Since the heating element 5 is close to the air outlet side, it can avoid the loss of hot air when it is delivered, and reduce the loss of heat during heating. Furthermore, the heating element 5 is located in the annular air duct 103, and the air-gathering effect of the annular air duct 103 makes the airflow flow evenly through the heating element 5, which can achieve the optimal heating effect.

[0064] In one specific embodiment, the first direction is one of forward rotation and reverse rotation, and the second direction is the other of forward rotation and reverse rotation.

[0065] In one embodiment, such as Figure 5 As shown, the head assembly includes an air duct structure 1, which includes a first annular wall plate 104, a second annular wall plate 105, and a first connecting wall plate 106. The inner side of the first annular wall plate 104 forms the main air duct 101. The inner diameter of the second annular wall plate 105 is larger than the inner diameter of the first annular wall plate 104. An annular air duct 103 is located on the inner side of the second annular wall plate 105. The first connecting wall plate 106 connects the first annular wall plate 104 and the second annular wall plate 105.

[0066] In this embodiment, the air duct structure 1 includes a first annular wall plate 104, a second annular wall plate 105, and a first connecting wall plate 106. The inner side of the first annular wall plate 104 forms the main air duct 101. The inner diameter of the second annular wall plate 105 is larger than the inner diameter of the first annular wall plate 104. The annular air duct 103 is located on the inner side of the second annular wall plate 105. The air duct structure 1 has a simple structure and a small number of parts.

[0067] In one specific embodiment, the air duct structure 1 is a one-piece molded structure.

[0068] In one embodiment, the head assembly includes a housing 6, which includes a first annular connecting portion 602. The area between the second annular wall panel 105 and the first annular connecting portion 602 forms at least a partial annular air duct 103, and the inner side of the first annular connecting portion 602 forms at least a partial central air duct 102; and / or, the area between the second annular wall panel 105 and the air guide plate assembly forms at least a partial annular air duct 103; and / or, the head assembly further includes a pressure cap 11, which is connected to the housing 6 or to the air duct structure 1. The pressure cap 11 includes a second annular connecting portion 1102, and the area between the second annular wall panel 105 and the second annular connecting portion 1102 forms at least a partial annular air duct 103, and the inner side of the second annular connecting portion 1102 forms at least a partial central air duct 102.

[0069] Specifically, the air guide plate assembly may include an annular support, the area between the second annular wall panel 105 and the annular support forms at least a portion of the central air duct 102, and the inner side of the annular support forms at least a portion of the central air duct 102.

[0070] In one specific embodiment, the first connecting wall panel 106 is a conical surface, so that the main air duct 101 can be connected to the central air duct 102 and the annular air duct 103 at the same time.

[0071] In one embodiment, the first connecting wall panel 106 is inclined and / or the air guide plate 4 is inclined. When the air guide plate 4 is in the closed position, the airflow flows along the inclined first connecting wall panel 106 and / or the air guide plate 4.

[0072] In this embodiment, when the air guide plate 4 is in the closed position, the airflow flows along the inclined first connecting wall plate 106 and / or the air guide plate 4, which can guide the airflow, reduce airflow resistance, and avoid dead airflow.

[0073] In one embodiment, further reference Figure 5 The first connecting wall panel 106 or the second annular wall panel 105 is provided with a snap-fit ​​part 107, and the heating component 5 is snapped into the snap-fit ​​part 107.

[0074] In this embodiment, the first connecting wall plate 106 or the second annular wall plate 105 is provided with a snap-fit ​​part 107 to facilitate the installation of the heating component 5.

[0075] In one specific embodiment, the snap-fit ​​portion 107 is provided on the first connecting wall plate 106.

[0076] In one embodiment, the head assembly further includes a pressure cover 11, which includes a second central connecting portion 1101 and a second annular connecting portion 1102. The air guide plate 4 includes a plate body 401, which is rotatably disposed between the second central connecting portion 1101 and the second annular connecting portion 1102.

[0077] In this embodiment, the pressure cap 11 includes a second central connecting portion 1101 and a second annular connecting portion 1102. The air guide plate 4 includes a plate body 401, which is rotatably disposed between the second central connecting portion 1101 and the second annular connecting portion 1102. When the air guide plate 4 is in the closed position, each plate body 401 is formed on the same plane or an annular conical surface, or two adjacent plate bodies 401 at least partially overlap to block the connection between the main air duct 101 and the central air duct 102. When the air guide plate 4 is in the open position, a gap is formed between two adjacent air guide plates 4 to allow airflow to pass through, so that the main air duct 101 and the central air duct 102 are connected. By providing the second central connecting portion 1101 and the second annular connecting portion 1102 in the pressure cap 11, it is convenient to position and install the air guide plate 4, and the number of parts is reduced.

[0078] In one embodiment, the drive component is connected to the pressure cap 11.

[0079] In this embodiment, the drive component and the pressure cap 11 are connected as a whole, which can improve assembly stability.

[0080] Specifically, the pressure cap 11 can be fixedly connected to the outer shell 6 or to the air duct structure 1, and the drive component can be located between the pressure cap 11 and the air duct structure 1.

[0081] In one embodiment, the air guide plate 4 includes a rotating shaft 402 located at at least one end of the plate body 401, and the second central connecting portion 1101 and / or the second annular connecting portion 1102 are provided with a plurality of first slots 1103, and the rotating shaft 402 is disposed in the first slots 1103.

[0082] In this embodiment, the air guide plate 4 includes a rotating shaft 402 located at at least one end of the plate body 401. The rotating shaft 402 is disposed in the first slot 1103, which facilitates the positioning and installation of the air guide plate 4 and can improve assembly efficiency.

[0083] In one specific embodiment, the air guide plate 4 includes rotating shafts 402 located at both ends of the plate body 401. The second central connecting portion 1101 and the second annular connecting portion 1102 are both provided with a plurality of first slots 1103 along the circumferential direction. The first slots 1103 in the second central connecting portion 1101 and the first slots 1103 in the second annular connecting portion 1102 correspond one-to-one, and the rotating shafts 402 at both ends are located in the corresponding first slots 1103. The rotating shaft 402 at one end of the plate body 401 is located in the first slot 1103 of the second central connecting portion 1101, and the rotating shaft 402 at the other end of the plate body 401 is located in the first slot 1103 of the second annular connecting portion 1102, which facilitates the positioning and installation of the air guide plate 4 and improves assembly efficiency.

[0084] In one embodiment, the air guide plate 4 further includes a rocker arm 403, and the head assembly further includes a drive assembly. The drive assembly includes a rotating component 7, which is provided with a plurality of actuating slots 701 spaced apart along the circumference. The rocker arm 403 is disposed in the actuating slots 701. When the rotating component 7 rotates, it drives the rocker arm 403 to move, thereby driving the air guide plate 4 to rotate.

[0085] In this embodiment, the rocker arm 403 is located in the actuation groove 701, and the rotating shaft 402 at at least one end of the plate 401 is located in the first slot 1103, which allows for quick assembly of the air guide plate 4. When the rotating component 7 rotates, it drives the rocker arm 403 to move, thereby causing the air guide plate 4 to rotate around its rotating shaft 402. Therefore, the rotation of one rotating component 7 can simultaneously drive multiple air guide plates 4 to rotate together, resulting in a simpler structure and lower cost.

[0086] Specifically, the joystick 403 and the plate 401 are not coplanar.

[0087] Specifically, the drive component is used to drive the air guide plate 4 to switch between the open and closed positions.

[0088] In one embodiment, the rotating member 7 has a meshing portion 702, and the drive assembly further includes a drive motor 8 and a drive gear 9. The drive motor 8 is fixed relative to the second central connection portion 1101 and / or the pressure cover 11; the drive gear 9 is connected to the output shaft of the drive motor 8 and meshes with the meshing portion 702.

[0089] In this embodiment, when the drive motor 8 is working, it drives the drive gear 9 to rotate. The drive gear 9 meshes with the meshing part 702 of the rotating part 7, thereby driving the rotating part 7 to rotate, which in turn drives the rocker arm 403 to rotate to a certain extent, thereby simultaneously driving each air guide plate 4 to flip. The drive assembly has a simple structure and reliable transmission.

[0090] In one specific embodiment, the meshing part 702 has internal meshing teeth, and the drive gear 9 has external meshing teeth. The drive gear 9 is located inside the rotating member 7, thereby making the structure of the drive assembly more compact.

[0091] In one embodiment, the drive assembly further includes a fixing plate 10, which is fixed to the second central connection portion 1101. The drive motor 8 is fixed to the fixing plate 10, and the rotating component 7 is rotatably engaged with the fixing plate 10.

[0092] In this embodiment, by setting the fixing plate 10, the position of the drive motor 8 can be effectively fixed. In addition, the rotating part 7 is rotatably engaged with the fixing plate 10, and the fixing plate 10 can position and install the rotating part 7.

[0093] In one embodiment, the fixed plate 10 is provided with one of a mounting through hole 704 and a mounting shaft 1003, and the center of the rotating member 7 is provided with the other of a mounting through hole 704 and a mounting shaft 1003, with the mounting shaft 1003 located in the mounting through hole 704.

[0094] In this embodiment, the mounting shaft 1003 and the mounting through hole 704 cooperate to position the rotating member 7, ensuring that the rotating member 7 rotates around the axis of the mounting shaft 1003.

[0095] Specifically in one embodiment, such as Figure 12 As shown, the mounting shaft 1003 is mounted on the fixing plate 10, as... Figure 9 As shown, the rotating part 7 has a mounting through hole 704 at its center.

[0096] In one embodiment, the rotating member 7 and the fixed plate 10 are engaged by a limiting structure, which is used to limit the rotation angle of the rotating member 7.

[0097] In this embodiment, by setting a limiting structure to restrict the rotation angle of the rotating component 7, it can be ensured that the air guide plate 4 can only switch between the open position and the closed position.

[0098] In one embodiment, the limiting structure includes a limiting groove 703 and a limiting rib 1002. The limiting groove 703 is disposed in one of the rotating member 7 and the fixed plate 10, and the limiting rib 1002 is disposed in the other of the rotating member 7 and the fixed plate 10. The limiting rib 1002 is adapted to move along the limiting groove 703.

[0099] In this embodiment, the limiting rib 1002 and the limiting groove 703 cooperate to limit the rotation angle of the rotating part 7, which can ensure that the air guide plate 4 can only switch between the open position and the closed position.

[0100] In one specific embodiment, when the limiting rib 1002 is located at one end of the limiting groove 703, the air guide plate 4 is in the open position, and when the limiting rib 1002 is located at the other end of the limiting groove 703, the air guide plate 4 is in the closed position.

[0101] Specifically in one embodiment, such as Figure 12 As shown, the limiting rib 1002 is provided on the fixing plate 10, as... Figure 9 As shown, the limiting groove 703 is provided on the rotating part 7.

[0102] In one embodiment not shown in the figure, the limiting rib 1002 can be provided on the rotating member 7, and the limiting groove 703 can be provided on the fixing plate 10.

[0103] Specifically, the limiting groove 703 is an arc-shaped groove.

[0104] In one embodiment, the pressure cap 11 includes a second central connecting portion 1101, the fixing plate 10 is provided with a mounting shaft 1003, the rotating member 7 is provided with a mounting through hole 704, the mounting shaft 1003 passes through the mounting through hole 704 and is fixedly connected to the second central connecting portion 1101.

[0105] In this embodiment, after the mounting shaft 1003 passes through the mounting through hole 704, the mounting shaft 1003 is fixedly connected to the second central connecting part 1101, which can connect the fixing plate 10, the rotating part 7 and the pressure cover 11 into a whole, thereby improving assembly stability and assembly efficiency.

[0106] In one specific embodiment, the center of the second central connecting part 1101 is provided with a fourth screw through hole 1108, the mounting shaft 1003 is provided with a threaded hole, and the screw passes through the fourth screw through hole 1108 and is tightened in the threaded hole.

[0107] In one embodiment, the rotating member 7 is positioned between the fixed plate 10 and the second central connecting part 1101. The second central connecting part 1101 is provided with a first limiting part 1106, which restricts the rotating member 7 from moving axially.

[0108] In this embodiment, the first limiting part 1106 restricts the axial movement of the rotating part 7, which can prevent the rotating part 7 from moving axially and causing the rotating shaft 402 of the air guide plate 4 to disengage from the receiving space formed by the first slot 1103 and the outer shell 6. This avoids the air guide plate 4 from disengaging from the limiting of the outer shell 6 and the pressure cover 11 and thus cannot smoothly switch between the open and closed positions, thereby improving assembly stability.

[0109] In one specific embodiment, the first limiting part 1106 is annular, and the rotating member 7 is provided with an annular stepped surface 705, with the first limiting part 1106 abutting against the annular stepped surface 705. In another specific embodiment, the first limiting part 1106 is annular, and the rotating member 7 is provided with an annular stepped surface 705, with a certain gap between the first limiting part 1106 and the annular stepped surface 705, to prevent the rotating member 7 from moving axially and causing the rotating shaft 402 of the air guide plate 4 to disengage from the receiving space formed by the first slot 1103 and the outer shell 6, thereby avoiding the air guide plate 4 from disengaging from the limiting of the outer shell 6 and the pressure cover 11 and failing to smoothly switch between the open and closed positions, thus improving assembly stability.

[0110] In one embodiment, the second central connecting portion 1101 is provided with a second limiting portion 1107, which restricts the drive gear 9 from moving axially.

[0111] In this embodiment, by providing the second limiting part 1107, the drive gear 9 can be prevented from moving axially.

[0112] Specifically, such as Figure 13 As shown, the pressure cover 11 is provided with a second central connecting part 1101. The second central connecting part 1101 and the second annular connecting part 1102 are connected by a plurality of second connecting ribs 1104 arranged radially. The end of the second connecting rib 1104 is provided with a third screw through hole 1105. The end of the first connecting rib 603 is provided with a second screw post 607. The second screw post 607 and the third screw through hole 1105 correspond one-to-one. After the screw passes through the third screw through hole 1105, it is tightened to the second screw post 607 to fix the pressure cover 11 to the outer shell 6.

[0113] In one embodiment, the head assembly includes a housing 6, an air duct structure 1, an air guide plate assembly and a heating component are all disposed inside the housing 6, a pressure cover 11 is connected to the housing 6, and the air guide plate assembly is disposed between the pressure cover 11 and the housing 6.

[0114] In this embodiment, by setting the outer shell 6, the air duct structure 1, the air guide plate assembly and the heating assembly are all located inside the outer shell 6, and the appearance of the entire head assembly is consistent.

[0115] In one embodiment, the head assembly includes a housing 6, which includes a cylindrical housing 600, a first central connecting portion 601, and a first annular connecting portion 602. The cylindrical housing 600 surrounds the outside of the air duct structure 1. The second central connecting portion 1101 is correspondingly connected to the first central connecting portion 601, and the second annular connecting portion 1102 is correspondingly connected to the first annular connecting portion 602.

[0116] In this embodiment, the second central connecting part 1101 is connected to the first central connecting part 601, and the second annular connecting part 1102 is connected to the first annular connecting part 602, so that the outer shell 6 and the pressure cover 11 can be stably connected together.

[0117] In one specific embodiment, the first annular connecting portion 602 is located inside the second annular wall panel 105 and is coaxially arranged. The space between the first annular connecting portion 602 and the second annular wall panel 105 forms at least a partial annular air duct 103, and the inner side of the first annular connecting portion 602 forms at least a partial central air duct 102.

[0118] Specifically, the first central connecting part 601 and the first annular connecting part 602 are connected by a plurality of radially distributed first connecting ribs 603.

[0119] In one specific embodiment, the fixing plate 10 is connected to the first central connecting part 601 by screws and / or snap fasteners.

[0120] Specifically, such as Figure 12 As shown, the fixing plate 10 is provided with a first screw through hole 1001, such as Figure 10As shown, the drive motor 8 is provided with a second screw through hole 801, as... Figure 13 As shown, the first central connecting part 601 is provided with a first screw post 606. The screw passes through the first screw through hole 1001 and the second screw through hole 801 and is tightened in the first screw post 606 to fix the fixing plate 10, the drive motor 8 and the first central connecting part 601 together. Specifically, the outer shell 6 is an integrally formed structure.

[0121] In one embodiment, the air guide plate 4 includes a rotating shaft 402 located at at least one end of the plate body 401, the first annular connecting portion 602 is provided with a plurality of second slots 604, the pressure cover 11 is fixedly connected to the outer shell 6, the second annular connecting portion 1102 is provided with a first slot 1103, the first slot 1103 corresponds one-to-one with the second slots 604 provided on the first annular connecting portion 602, and the rotating shaft 402 located on the plate body 401 away from the first central connecting portion 601 is limited to the second slots 604 and the first slots 1103.

[0122] In this embodiment, by providing a first slot 1103 on the pressure cap 11, the rotating shaft 402 located on the plate 401 away from the first central connecting part 601 is limited between the second slot 604 and the first slot 1103. This can limit the position of the rotating shaft 402, preventing it from coming out of the second slot 604. It can also prevent the rotating shaft 402 of the air guide plate 4 from moving up, down, left, and right significantly when rotating. In addition, it prevents the rotating part 7 from moving along the axial direction, causing the rotating shaft 402 of the air guide plate 4 to come out of the receiving space formed by the first slot 1103 and the second slot 604 on the first annular connecting part 602. This avoids the air guide plate 4 from coming out of the limiting position of the outer shell 6 and the pressure cap 11, thus preventing the air guide plate 4 from switching smoothly between the open and closed positions, and improving assembly stability.

[0123] In one embodiment, the housing 6 includes an annular grille 605, which is disposed opposite to the annular air duct 103.

[0124] In this embodiment, by setting an annular grille 605, the annular grille 605 can cover the heating component 5 located in the annular air duct 103, making the appearance more aesthetically pleasing. It can also prevent dust from entering the interior of the annular air duct 103, and at the same time, it can prevent users from accidentally putting their hands into the annular air duct 103, which could lead to burns or electric shocks and other electrical safety hazards.

[0125] like Figure 7 As shown, the annular grille 605 has multiple through holes to allow airflow to pass through.

[0126] In one specific embodiment, the annular grille 605 is integrally formed with the housing 600, and the first annular connecting part 602 is disposed on the inner side of the annular grille 605.

[0127] In one embodiment, the head assembly further includes a first grille 12, which is located on the side of the main air duct 101 away from the central air duct 102.

[0128] In this embodiment, by setting the first grille 12, 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.

[0129] In one specific embodiment, the air duct structure 1 is connected to an oscillating motor, which can realize the oscillation of the head assembly to ensure that the air outlet side faces the user, and both cold and hot air can be blown towards the user.

[0130] According to an embodiment of the present invention, another aspect provides an air outlet device, including the head assembly provided in the above embodiments.

[0131] When cooling is required, the heating element 5 of this air outlet device is not activated, and the air guide plate 4 is in the open position. The gap between two adjacent air guide plates 4 is suitable for airflow, allowing airflow to pass through both the central air duct 102 and the annular air duct 103 simultaneously. This ensures sufficient airflow for cooling. Since the flow area of ​​the air guide plate assembly is S (S≤25000 mm²), the flow area is relatively small, allowing the air guide plate 4 to open at a slight angle, eliminating the need for a dust filter. Furthermore, because the air guide plate assembly provides protection, the protective grille on the side of the central air duct 102 furthest from the main air duct 101 can be eliminated, saving costs. Simultaneously, the airflow passing through both the annular air duct 103 and the central air duct 102 ensures sufficient airflow without affecting the air outlet performance. When warm air is needed, the heating element 5 is activated and the air guide plate 4 is in the closed position, preventing airflow from entering the central air duct 102. The airflow is heated as it flows through the annular air duct 103. In warm air mode, air is drawn in from the main air duct 101, ensuring sufficient air intake without affecting the warm air output performance and guaranteeing the heating effect.

[0132] In one embodiment, the air outlet device is a fan or a heater.

[0133] 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 system includes a main air duct (101), a central air duct (102), and an annular air duct (103). The central air duct (102) and the annular air duct (103) are located at one end of the main air duct (101), and the annular air duct (103) is located on the outer periphery of the central air duct (102). The main air duct (101) contains a fan blade (2) and a main motor (3) that can drive the fan blade (2) to rotate. The air guide plate assembly includes multiple air guide plates (4), each of the multiple air guide plates (4) having a closed position for closing the central air duct (102) and an open position for opening the central air duct (102). When the air guide plate (4) is in the open position, the gap between two adjacent air guide plates (4) is suitable for airflow to pass through. The flow area of ​​the air guide plate assembly is S, where S≤25000㎜². A heating element (5) is disposed in the annular air duct (103). The head assembly has a cold air mode and a warm air mode. In the cold air mode, the air guide plate (4) is in the open position, and in the warm air mode, the air guide plate (4) is in the closed position.

2. The head assembly according to claim 1, characterized in that, S≤19200mm², and / or 15000mm²≤S≤25000mm², and / or, when the air guide plate (4) is in the open position, the maximum gap between two adjacent air guide plates (4) is d, d≤8.6mm.

3. The head assembly according to claim 1, characterized in that, The air guide plate (4) is fan-shaped, and the gap between two adjacent air guide plates (4) gradually increases along the radial direction of the main air duct (101).

4. The head assembly according to claim 1, 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; In the cold air mode, the main motor (3) is in the first working state, the air guide plate (4) is in the open position, and the airflow is driven through the central air duct (102) and the annular air duct (103) into the main air duct (101). In the warm air mode, the main motor (3) is in the second working state, the air guide plate (4) is in the closed position, and the airflow is driven through the main air duct (101) and then into the annular air duct (103).

5. The head assembly according to claim 1, characterized in that, The head assembly includes an air duct structure (1), which includes a first annular wall plate (104), a second annular wall plate (105), and a first connecting wall plate (106). The inner side of the first annular wall plate (104) forms the main air duct (101). The inner diameter of the second annular wall plate (105) is larger than the inner diameter of the first annular wall plate (104). The annular air duct (103) is located on the inner side of the second annular wall plate (105). The first connecting wall plate (106) connects the first annular wall plate (104) and the second annular wall plate (105).

6. The head assembly according to claim 5, characterized in that, The head assembly includes a housing (6), the housing (6) includes a first annular connecting portion (602), the area between the second annular wall panel (105) and the first annular connecting portion (602) constitutes at least a portion of the annular air duct (103), and the inner side of the first annular connecting portion (602) constitutes at least a portion of the central air duct (102). And / or, the area between the second annular wall panel (105) and the air guide plate assembly constitutes at least a portion of the annular air duct (103). And / or, the head assembly further includes a pressure cap (11) connected to the housing (6) or the pressure cap (11) connected to the air duct structure (1), the pressure cap (11) including a second annular connecting portion (1102), the area between the second annular wall panel (105) and the second annular connecting portion (1102) forming at least a portion of the annular air duct (103), and the inner side of the second annular connecting portion (1102) forming at least a portion of the central air duct (102).

7. The head assembly according to claim 5, characterized in that, The first connecting wall panel (106) is inclined and / or the air guide plate (4) is inclined. When the air guide plate (4) is in the closed position, the airflow flows along the inclined first connecting wall panel (106) and / or the air guide plate (4).

8. The head assembly according to claim 5, characterized in that, The first connecting wall panel (106) or the second annular wall panel (105) is provided with a snap-fit ​​part (107), and the heating component (5) is snapped into the snap-fit ​​part (107).

9. The head assembly according to claim 5, characterized in that, The head assembly also includes a pressure cap (11), the pressure cap (11) includes a second central connecting part (1101) and a second annular connecting part (1102), and the air guide plate (4) includes a plate body (401), the plate body (401) being rotatably disposed on the second central connecting part (1101) and the second annular connecting part (1102).

10. The head assembly according to claim 9, characterized in that, The air guide plate (4) includes a rotating shaft (402) located at at least one end of the plate body (401), and the second central connecting part (1101) and / or the second annular connecting part (1102) are provided with a plurality of first slots (1103), and the rotating shaft (402) is located in the first slots (1103).

11. The head assembly according to claim 9, characterized in that, The air guide plate (4) also includes a rocker arm (403), and the head assembly also includes a drive assembly. The drive assembly includes a rotating component (7). The rotating component (7) is provided with a plurality of actuating grooves (701) spaced apart along the circumference. The rocker arm (403) is located in the actuating grooves (701). When the rotating component (7) rotates, it drives the rocker arm (403) to move, thereby driving the air guide plate (4) to rotate.

12. The head assembly according to claim 11, characterized in that, The rotating member (7) has an engaging portion (702), and the driving assembly further includes: The drive motor (8) is fixed relative to the second central connection part (1101) and / or the pressure cover (11); The drive gear (9) is connected to the output shaft of the drive motor (8) and meshes with the meshing part (702).

13. The head assembly according to claim 12, characterized in that, The drive assembly also includes a fixing plate (10), which is fixed to the second central connection part (1101), the drive motor (8) is fixed to the fixing plate (10), and the rotating part (7) is rotatably engaged with the fixing plate (10).

14. The head assembly according to claim 13, characterized in that, The rotating component (7) and the fixed plate (10) cooperate through a limiting structure, which is used to limit the rotation angle of the rotating component (7).

15. The head assembly according to claim 13, characterized in that, The fixed plate (10) is provided with a mounting shaft (1003), and the rotating part (7) is provided with a mounting through hole (704). After the mounting shaft (1003) passes through the mounting through hole (704), the mounting shaft (1003) is fixedly connected to the second central connecting part (1101).

16. The head assembly according to claim 13, characterized in that, The rotating component (7) is located between the fixed plate (10) and the second central connecting part (1101). The second central connecting part (1101) is provided with a first limiting part (1106), which restricts the rotating component (7) from moving along the axial direction.

17. The head assembly according to claim 12, characterized in that, The second central connecting part (1101) is provided with a second limiting part (1107), which restricts the drive gear (9) from moving axially.

18. The nose assembly according to any one of claims 9 to 17, characterized in that, The head assembly includes a housing (6), the air duct structure (1), the air guide plate assembly and the heating component are all located inside the housing (6), the pressure cover (11) is connected to the housing (6), and the air guide plate assembly is located between the pressure cover (11) and the housing (6).

19. The nose assembly according to any one of claims 9 to 17, characterized in that, The head assembly includes a housing (6), which includes a cylindrical shell (600), a first central connecting part (601), and a first annular connecting part (602). The cylindrical shell (600) surrounds the outside of the air duct structure (1). The second central connecting part (1101) is correspondingly connected to the first central connecting part (601), and the second annular connecting part (1102) is correspondingly connected to the first annular connecting part (602).

20. The head assembly according to claim 19, characterized in that, The air guide plate (4) includes a rotating shaft (402) located at at least one end of the plate body (401). The first annular connecting part (602) is provided with a plurality of second slots (604). The pressure cover (11) is fixedly connected to the outer shell (6). The second annular connecting part (1102) is provided with a first slot (1103). The first slot (1103) corresponds one-to-one with the second slots (604) provided on the first annular connecting part (602). The rotating shaft (402) located on the plate body (401) away from the first central connecting part (601) is limited between the second slot (604) and the first slot (1103).

21. The head assembly according to claim 19, characterized in that, The outer casing (6) includes an annular grille (605), which is disposed opposite to the annular air duct (103).

22. The head assembly according to any one of claims 1 to 17, 20, and 21, characterized in that, The head assembly also includes: The first grille (12) is located on the side of the main air duct (101) away from the central air duct (102).

23. An air outlet device, characterized in that, include: The nose assembly according to any one of claims 1 to 22.

24. The air outlet device according to claim 23, characterized in that, The air outlet device is a fan or a heater.

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