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, and the machine head assembly comprises an air duct assembly which comprises a main 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 first grating is arranged at the first end of the air duct assembly; the second grating is arranged at the second end of the air duct assembly; the filtering structure is detachably connected with the first grating and / or the second grating, when the first grating is located on the air inlet side of the air duct assembly, the filtering structure is at least arranged on the side, away from the air duct assembly, of the first grating, and when the second grating is located on the air inlet side of the air duct assembly, the filtering structure is at least arranged on the side, away from the air duct assembly, of the second grating. The filtering structure firstly filters air, then the air enters the air duct assembly, the cleanliness of the air entering the air duct assembly is improved, dust entering the air duct assembly can be avoided or reduced, dust accumulation of a motor and fan blades is avoided, and therefore the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a head assembly and an air outlet device. BACKGROUND

[0002] Cold and warm circulating fans are widely used in families and offices for adjusting indoor temperature. In related technologies, dust, particulate matter and other pollutants suspended in the air are likely to enter the interior of the device when the cold and warm circulating fan is working, and adhere to the motor and fan blades, causing the device to operate inefficiently, and even affecting the health of users. In addition, some products are equipped with filter screens, but the filter screens are arranged on the inner side of the products, making it difficult to clean and replace, and increasing the maintenance cost. SUMMARY

[0003] Therefore, the present application provides a head assembly and an air outlet device to solve the problem that dust is easily adhered to the motor and fan blades.

[0004] In a first aspect, the present application provides a head assembly, comprising: an air duct assembly comprising a main air duct, wherein a fan blade and a main motor capable of driving the fan blade to rotate are arranged in the main air duct; a first grid arranged at a first end of the air duct assembly; a second grid arranged at a second end of the air duct assembly; a filter structure detachably connected with the first grid and / or the second grid, when the first grid is located at the air inlet side of the air duct assembly, the filter structure is arranged at least on a side of the first grid away from the air duct assembly, and when the second grid is located at the air inlet side of the air duct assembly, the filter structure is arranged at least on a side of the second grid away from the air duct assembly.

[0005] Beneficial effects: the filter structure is detachably connected with the first grid and / or the second grid, when the first grid is located at the air inlet side of the air duct assembly, the filter structure is arranged at least on a side of the first grid away from the air duct assembly, so that the external air will first pass through the filter structure and then pass through the first grid to enter the interior of the air duct assembly; when the second grid is located at the air inlet side of the air duct assembly, the filter structure is arranged at least on a side of the second grid away from the air duct assembly, so that the external air will first pass through the filter structure and then pass through the second grid to enter the interior of the air duct assembly. Therefore, the filter structure first filters the air entering, and then enters the interior of the air duct assembly, improving the cleanliness of the air entering the interior of the air duct assembly, which can avoid or reduce the dust entering the interior of the air duct assembly, avoiding the dust accumulation on the motor and fan blades, thereby prolonging the service life. In addition, since the filter structure is detachably connected with the first grid and / or the second grid, it is convenient to disassemble, clean and replace the filter structure, which reduces the maintenance cost, and at the same time, the filter structure can be connected with the first grid or the second grid according to the needs, improving the flexibility of use.

[0006] In one optional embodiment, the filter structure is provided with a first snap-fit ​​structure, and the first grid and / or the second grid is provided with a second snap-fit ​​structure, wherein the first snap-fit ​​structure snaps into the second snap-fit ​​structure.

[0007] Beneficial effects: By providing a first snap-fit ​​structure in the filter structure and a second snap-fit ​​structure in the first grid and / or the second grid, the first snap-fit ​​structure and the second snap-fit ​​structure are snapped together, which facilitates the connection and disassembly of the filter structure and the first grid and / or the second grid.

[0008] In one optional embodiment, the first grille and / or the second grille are provided with a plurality of guide grooves; The first snap-fit ​​structure is provided with multiple such structures at intervals along a circumference. The first snap-fit ​​structure includes a first connecting part and a second connecting part. The first connecting part is provided on the filter structure and extends along the axial direction of the filter structure. The second connecting part is tangent to the circumference or is an arc-shaped segment extending circumferentially along the circumference. The second connecting part is provided with a first engaging part. When the filter structure is rotated, the first engaging structure is adapted to move along the guide groove. The second snap-fit ​​structure includes a second engaging portion, and the first engaging portion is adapted to engage with the second engaging portion.

[0009] Beneficial effects: When installing the filter structure on the first or second grid, firstly, the second connecting part and the first connecting part pass through the guide groove. Then, rotate the filter structure. The first engaging structure moves along the guide groove. When the first engaging part on the second connecting part engages with the second engaging part on the first or second grid, the position of the filter structure is fixed and cannot continue to rotate. Because the second connecting part and the first connecting part pass through the guide groove, and the second engaging part is located on the side of the first or second grid away from the filter structure, after assembly, the first and second engaging structures are not visible, resulting in a more aesthetically pleasing appearance.

[0010] In one alternative embodiment, the first engaging portion includes one of a slot and a retaining rib, and the second engaging portion includes the other of a slot and a retaining rib, wherein the retaining rib is adapted to be embedded in the slot.

[0011] Beneficial effects: The first engaging part includes one of a slot and a rib, and the second engaging part includes the other of a slot and a rib. The rib is suitable for embedding into the slot. The structure of the first engaging part and the second engaging part is simple and easy to process.

[0012] In one optional embodiment, the slot is provided on the second connecting part, and a rib is provided on the side of the slot away from the first connecting part. When the rib is inserted into the slot, the rib abuts against the outer wall of the rib.

[0013] Beneficial effects: When the retaining rib is inserted into the retaining groove, the protruding rib abuts against the outer wall of the retaining rib. The part where the protruding rib abuts against the outer wall of the retaining rib is an arc surface. When it is necessary to remove the filter structure from the first or second grid, the filter structure is rotated in the opposite direction, which can make the protruding rib slide along the outer wall of the retaining rib, thereby making the retaining groove separate from the retaining rib, which facilitates the disassembly of the filter structure.

[0014] In one optional embodiment, the filter structure is provided with positioning ribs, and when the first snap-fit ​​structure is snapped into the second snap-fit ​​structure, the positioning ribs abut against the first grid or the second grid.

[0015] Beneficial effects: When the first snap-fit ​​structure and the second snap-fit ​​structure are snapped together, the positioning ribs abut against the first or second grid, which can fix the filter structure axially and prevent the filter structure from moving axially and causing vibration and noise during operation.

[0016] In one optional embodiment, the air duct assembly further includes a central air duct and an annular air duct, the central air duct and the annular air duct being disposed at one end of the main air duct, the annular air duct being disposed on the outer periphery of the central air duct, and the head assembly further includes: An air guide plate assembly includes multiple air guide plates, the multiple air guide plates having a closed position for closing the central air duct and an open position for opening the central air duct; A drive component, connected to the plurality of the air guide plates, is capable of driving the air guide plates to switch between the closed position and the open position; 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 drive assembly controls the air guide plate to switch to the open position. In warm air mode, the drive component controls the air guide plate to switch to the closed position.

[0017] Beneficial effects: When cool air is needed, the heating element is not activated, and the drive unit controls the air guide plate to open. The airflow passes through the filter structure and enters the main air duct, then flows into the central air duct and the annular air duct before being blown out, ensuring a sufficiently strong and large volume of cool air. When hot air is needed, the drive unit controls the air guide plate to close, and the heating element activates. The airflow passes through the filter structure and enters the main air duct, then flows through the annular air duct before being blown out. The heating element is located in the annular air duct, and the airflow's concentrating effect ensures that the airflow is evenly distributed across the heating element, achieving optimal heating performance.

[0018] 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 operating state, it drives the airflow to flow from the first end of the air duct assembly to the second end of the air duct assembly. When the main motor is in the second operating state, it drives the airflow to flow from the second end of the air duct assembly to the first end of the air duct assembly. In cold air mode, the main motor is in the first working state, and the filter structure is at least located on the side of the first grille away from the air duct assembly; In warm air mode, the main motor is in the second working state, and the filter structure is located at least on the side of the second grille away from the air duct assembly.

[0019] Beneficial effects: When cold air is needed, the heating element is not working, the main motor is in its first operating state, the fan blades rotate in the first direction, the filter structure is located at least on the side of the first grille away from the air duct assembly, the drive component controls the air guide plate to switch to the open position, and the airflow passes through the filter structure and the first grille in sequence before entering the central air duct and the annular air duct, then passes through the main air duct and the second grille before being blown out, ensuring that the cold air is strong enough and the air volume is large. When hot air is needed, the main motor is in its second operating state, the fan blades rotate in the second direction, the filter structure is located at least on the side of the second grille away from the air duct assembly, the drive component controls the air guide plate to switch to the closed position, the heating element is working, and the airflow passes through the filter structure and the second grille in sequence before entering the main air duct, then passes through the annular air duct and the first grille before being blown out. Because the heating element is close to the air outlet side, it can avoid loss when the hot air is delivered, 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 the optimal heating effect.

[0020] 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.

[0021] 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.

[0022] In one optional embodiment, the outer casing includes a first central connecting portion, a first annular connecting portion, and a cylindrical shell, and the air guide plate includes a plate body rotatably disposed between the first central connecting portion and the first annular connecting portion.

[0023] Beneficial effects: The outer shell includes a first central connecting part, a first annular connecting part, and a cylindrical shell. The air guide plate includes a plate body, which is rotatably disposed between the first central connecting part and the first annular connecting part. When the air guide plate is in the closed position, the plates of each air guide plate are formed on the same plane or an annular cone surface or adjacent plates overlap at least partially, which can block the airflow through the central air duct. When the air guide plate is in the open position, an air-proof opening is formed between adjacent plates to allow the airflow to pass through the air-proof opening between the plates.

[0024] In one optional embodiment, the air guide plate includes a rotating shaft located at at least one end of the 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.

[0025] 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, improves assembly efficiency, and allows the air guide plate to switch between the open and closed positions under the limit of the first slot.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] In one alternative embodiment, the drive motor is disposed at the first central connection portion.

[0031] 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.

[0032] Beneficial effect: By setting up a fixing plate, the position of the drive motor can be effectively fixed.

[0033] In one optional embodiment, the first grille includes an annular grille and a central grille, the annular grille being disposed opposite to the annular air duct, the central grille being disposed opposite to the central air duct, and the annular grille and the outer shell being an integral structure.

[0034] Beneficial effects: The circular grille can conceal the heating components located within the circular air duct, resulting in a more aesthetically pleasing appearance. It also prevents users from accidentally inserting their hands into the circular air duct, thus avoiding electrical safety hazards such as burns or electric shocks. The central grille can conceal components inside the central air duct, resulting in a more aesthetically pleasing appearance.

[0035] 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 internally forms the main air duct, and the secondary air duct structure is disposed at one end of the main air duct structure. The secondary air duct structure is connected to the outer shell, and / or the secondary air duct structure is connected to the main air duct structure. The secondary air duct structure includes a first annular connector and a second annular connector. The central air duct is formed inside the first annular connector, and the gap between the first annular connector and the second annular connector forms the annular air duct. Alternatively, the secondary air duct structure includes a first annular connector, the inner side of which forms the central air duct, and the gap between the outer shell and the first annular connector forms the annular air duct; Alternatively, the secondary air duct structure includes a first annular connector, the inner side of which forms the central air duct, and the gap between the main air duct structure and the first annular connector forms the annular air duct.

[0036] Beneficial effects: The secondary air duct structure includes a first annular connector and a second annular connector. The inner side of the first annular connector forms a central air duct, and the gap between the first annular connector and the second annular connector forms an annular air duct. After the secondary air duct structure is connected to the outer shell and / or the secondary air duct structure is connected to 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 structure and a secondary air duct structure, which facilitates the processing of each component.

[0037] In one optional embodiment, the air guide plate includes a plate body and a rotating shaft located at at least one end of the plate body. The first annular connector is provided with a plurality of second slots, and 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. The rotating shaft located at the end of the plate body away from the first central connecting portion is confined between the first slots and the second slots.

[0038] Beneficial effects: By providing multiple second slots in the first annular connector, the rotating shaft located at the end of the plate away from the first central connecting part is limited between the second slot and the first slot of the first annular connector. This can limit the position of the rotating shaft at one end of the plate, preventing the rotating shaft from coming out of the first slot. At the same time, it can also effectively prevent the rotating shaft of the air guide plate from moving up, down, left, and right significantly when it rotates.

[0039] In one optional embodiment, the drive assembly includes a rotating component, the secondary air duct structure includes a second central connecting portion, the drive assembly further includes a drive motor and a fixing plate, the drive motor is fixed between the first central connecting portion and the fixing plate, the fixing plate is provided with a mounting shaft, the center of the rotating component is provided with a mounting through hole, and the mounting shaft passes through the mounting through hole and is fixedly connected to the second central connecting portion.

[0040] 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.

[0041] In one optional embodiment, the second central connecting part is connected to the first annular connecting member 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 plate is switched to the closed position, along the radial direction of the main air duct, the plate gradually tilts away from the main air duct.

[0042] 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 plate is switched to the closed position, it gradually tilts away from the main air duct along the radial direction. The tilted 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 open and closed positions and improving assembly stability.

[0047] 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.

[0048] 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.

[0049] Secondly, the present invention also provides an air outlet device, comprising: The aforementioned head assembly.

[0050] In one alternative implementation, the air outlet device is a fan or a heater. Attached Figure Description

[0051] 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.

[0052] Figure 1 This is a cross-sectional view of a head assembly according to an embodiment of the present invention when the filter structure is assembled on the first grid; Figure 2 This is a cross-sectional view of a head assembly according to an embodiment of the present invention when the filter structure is assembled on the second grid; Figure 3 This is a schematic diagram of the first grille; Figure 4 This is a schematic diagram of the second grille; Figure 5 This is a schematic diagram of the filter structure; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 Schematic diagram of the filter structure when assembled with the second grid. Figure 1 ; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 Schematic diagram of the filter structure when assembled with the second grid. Figure 2 ; Figure 10 A schematic diagram of the head unit after the first grille has been removed when the air guide plate is in the closed position; Figure 11 A schematic diagram of the head unit after the first grille has been removed when the air guide plate is in the open position; Figure 12 This is a cross-sectional view of a head assembly without a filter structure according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the air guide plate; Figure 14 A schematic diagram of the main air duct structure; Figure 15 This is a schematic diagram of the secondary air duct structure; Figure 16 This is a schematic diagram of the outer casing; Figure 17 for Figure 16 Enlarged view of point C in the middle; Figure 18 This is a schematic diagram of a rotating component; Figure 19This is a schematic diagram of the fixing plate; Figure 20 This is a schematic diagram of the secondary air duct structure in an alternative embodiment.

[0053] Explanation of reference numerals in the attached figures: 1. Main air duct structure; 101. Main air duct; 102. Guide surface; 103. First connecting structure; 2. Secondary air duct structure; 201. Central air duct; 202. Annular air duct; 203. Second central connecting part; 204. First annular connector; 205. Second annular connector; 206. Annular rib; 207. Second connecting rib; 208. Third connecting rib; 209. Second screw through hole; 210. Second slot; 211. Second connecting structure; 212. First limiting part; 213. Second limiting part; 214. Third screw through hole; 3. Main motor; 4. Fan blade; 5. Air guide plate; 501. Plate body; 502. Rotating shaft; 503. Rocker arm; 6. Heating component; 7. Housing; 700. Housing; 701. First central connecting part; 702. First annular connecting part; 70 3. First connecting rib; 704. First slot; 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; 1201. Annular grille; 1202. Central grille; 1203. Guide groove; 1204. Locking rib; 1205. Central end face; 13. Second grille; 14. Filter structure; 1401. First snap-fit ​​structure; 14011. First connecting part; 14012. Second connecting part; 14013. Slot; 14014. Protruding rib; 1402. Positioning rib. Detailed Implementation

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] Hot and cold air circulating fans are widely used in homes and offices to regulate indoor temperature. However, when these fans are operating, airborne dust, particulate matter, and other pollutants can easily enter the device, adhering to the motor and fan blades. This reduces the device's efficiency and can even affect user health. Furthermore, while some products are equipped with filters, these filters are located inside the device, making cleaning and replacement difficult and increasing maintenance costs.

[0059] The following is combined with Figures 1 to 19 The following describes embodiments of the present invention.

[0060] According to an embodiment of the present invention, in a first aspect, a head unit assembly is provided, including an air duct assembly, a first grille 12, a second grille 13, and a filter structure 14.

[0061] The air duct assembly includes a main air duct 101, in which a fan blade 4 and a main motor 3 capable of driving the fan blade 4 to rotate are provided; a first grille 12 is provided at the first end of the air duct assembly; a second grille 13 is provided at the second end of the air duct assembly; a filter structure 14 is detachably connected to the first grille 12 and / or the second grille 13. When the first grille 12 is located on the air inlet side of the air duct assembly, the filter structure 14 is provided at least on the side of the first grille 12 away from the air duct assembly. When the second grille 13 is located on the air inlet side of the air duct assembly, the filter structure 14 is provided at least on the side of the second grille 13 away from the air duct assembly.

[0062] In this embodiment, the filter structure 14 is detachably connected to the first grille 12 and / or the second grille 13. When the first grille 12 is located on the air inlet side of the air duct assembly, the filter structure 14 is at least located on the side of the first grille 12 away from the air duct assembly. Figure 1 As indicated by the middle arrow, outside air is first filtered by the filter structure 14 before passing through the first grille 12 and entering the air duct assembly; when the second grille 13 is located on the air inlet side of the air duct assembly, the filter structure 14 is at least located on the side of the second grille 13 furthest from the air duct assembly, such as... Figure 2 The middle arrow indicates the direction; outside air is first filtered by the filter structure 14 before passing through the second grille 13 and entering the air duct assembly. Therefore, the filter structure 14 filters the air before it enters the air duct assembly, improving the cleanliness of the air entering the assembly and preventing or reducing dust from entering. This avoids dust accumulation on the motor and fan blades 4, thus extending their service life. Furthermore, since the filter structure 14 is detachably connected to the first grille 12 and / or the second grille 13, it facilitates disassembly, cleaning, and replacement, reducing maintenance costs. It can also be connected to either the first grille 12 or the second grille 13 as needed, increasing operational flexibility.

[0063] In one specific embodiment, when the first grille 12 is located on the air inlet side of the air duct assembly, the filter structure 14 is located on the side of the first grille 12 away from the air duct assembly; when the second grille 13 is located on the air inlet side of the air duct assembly, the filter structure 14 is located on the side of the second grille 13 away from the air duct assembly.

[0064] In one specific embodiment, the filter structure 14 is a filter screen, which can be a HEPA high-efficiency filter or an activated carbon filter, and different filters can be selected according to different air quality environments.

[0065] In one embodiment, the filter structure 14 is provided with a first snap-fit ​​structure 1401, and the first grid 12 and / or the second grid 13 are provided with a second snap-fit ​​structure, wherein the first snap-fit ​​structure 1401 snaps into the second snap-fit ​​structure.

[0066] In this embodiment, by providing a first snap-fit ​​structure 1401 for the filter structure 14 and a second snap-fit ​​structure for the first grille 12 and / or the second grille 13, the first snap-fit ​​structure 1401 snaps into the second snap-fit ​​structure, which facilitates the connection and disassembly of the filter structure 14 with the first grille 12 and / or the second grille 13.

[0067] In one specific embodiment, both the first grille 12 and the second grille 13 are provided with a second snap-fit ​​structure.

[0068] In an alternative embodiment, the filter structure 14 may be connected to the first grille 12 or the second grille 13 by magnetic attraction or by screws.

[0069] In one embodiment, such as Figure 3 and Figure 4 The first grille 12 and / or the second grille 13 are provided with multiple guide grooves 1203; such as Figures 5 to 8 The first snap-fit ​​structure 1401 is provided with multiple parts at intervals along a circumference. The first snap-fit ​​structure 1401 includes a first connecting part 14011 and a second connecting part 14012. The first connecting part 14011 is provided on the filter structure 14 and extends along the axial direction of the filter structure 14. The second connecting part 14012 is tangent to the circumference or the second connecting part 14012 is an arc-shaped segment extending circumferentially along the circumference. The second connecting part 14012 is provided with a first engaging part. When the filter structure 14 is rotated, the first snap-fit ​​structure 1401 is adapted to move along the guide groove 1203. The second snap-fit ​​structure includes a second engaging part, and the first engaging part is adapted to engage with the second engaging part.

[0070] In this embodiment, when the filter structure 14 is installed on the first grille 12 or the second grille 13, the second connecting part 14012 and the first connecting part 14011 are first passed through the guide groove 1203. Then, the filter structure 14 is rotated, and the first engaging structure 1401 moves along the guide groove 1203. When the first engaging part on the second connecting part 14012 engages with the second engaging part on the first grille 12 or the second grille 13, the position of the filter structure 14 is fixed and cannot continue to rotate. Since the second connecting part 14012 and the first connecting part 14011 pass through the guide groove 1203, and the second engaging part is located on the side of the first grille 12 or the second grille 13 opposite to the filter structure 14, after assembly, the first engaging structure and the second engaging structure are not visible, resulting in a more aesthetically pleasing appearance.

[0071] Specifically, the second connecting part 14012 is perpendicular to the first connecting part 14011.

[0072] It should be noted that "multiple" refers to at least two, "multiple guide grooves 1203" specifically refers to at least two guide grooves 1203, and "multiple first snap-fit ​​structures 1401" specifically refers to at least two first snap-fit ​​structures 1401.

[0073] Specifically, Figure 5 The filter structure 14 shown in the figure has three first snap-fit ​​structures 1401. Figure 3 and Figure 4 The diagram shows that the first grille 12 or the second grille 13 is provided with three guide grooves 1203, each of which is arc-shaped.

[0074] In one embodiment, the first engaging portion includes one of a slot 14013 and a retaining rib 1204, and the second engaging portion includes the other of a slot 14013 and a retaining rib 1204, wherein the retaining rib 1204 is adapted to be embedded in the slot 14013.

[0075] In this embodiment, the first engaging portion includes one of the slot 14013 and the retaining rib 1204, and the second engaging portion includes the other of the slot 14013 and the retaining rib 1204. The retaining rib 1204 is adapted to be embedded in the slot 14013. The structure of the first engaging portion and the second engaging portion is simple and easy to process.

[0076] In one embodiment, the slot 14013 is provided on the second connecting part 14012, and the side of the slot 14013 away from the first connecting part 14011 is provided with a protruding rib 14014. When the rib 1204 is inserted into the slot 14013, the protruding rib 14014 abuts against the outer wall of the rib 1204.

[0077] In this embodiment, when the retaining rib 1204 is inserted into the retaining groove 14013, the protruding rib 14014 abuts against the outer wall of the retaining rib 1204. When it is necessary to remove the filter structure 14 from the first grid 12 or the second grid 13, the filter structure 14 is rotated in the opposite direction, which can make the protruding rib 14014 slide along the outer wall of the retaining rib 1204, thereby allowing the retaining groove 14013 to leave the retaining rib 1204, which facilitates the removal of the filter structure 14.

[0078] In one embodiment, the part where the protruding rib 14014 abuts against the outer wall of the retaining rib 1204 is an arc surface. When it is necessary to remove the filter structure 14 from the first grid 12 or the second grid 13, the filter structure 14 is rotated in the opposite direction, which can make the arc surface of the protruding rib 14014 slide along the outer wall of the retaining rib 1204, thereby making the retaining groove 14013 leave the retaining rib 1204, which facilitates the removal of the filter structure 14.

[0079] In one embodiment, such as Figure 5 and Figure 9 The filter structure 14 is provided with a positioning rib 1402. When the first snap-fit ​​structure 1401 and the second snap-fit ​​structure are snapped together, the positioning rib 1402 abuts against the first grid 12 or the second grid 13.

[0080] In this embodiment, when the first snap-fit ​​structure 1401 snaps into the second snap-fit ​​structure, the positioning rib 1402 abuts against the first grid 12 or the second grid 13, which can fix the filter structure 14 axially and prevent the filter structure 14 from moving axially and causing vibration and noise during operation.

[0081] In one specific embodiment, the first grille 12 or the second grille 13 has a central end face. When the first snap-fit ​​structure 1401 snaps into the second snap-fit ​​structure, the positioning rib 1402 abuts against the central end face 1205 of the first grille 12 or the second grille 13.

[0082] In one embodiment, the air duct assembly further includes a central air duct 201 and an annular air duct 202, which are located at one end of the main air duct 101, with the annular air duct 202 located on the outer periphery of the central air duct 201. The head assembly further includes an air guide plate assembly, a drive assembly, and a heating element 6. The air guide plate assembly includes multiple air guide plates 5, each having a closed position for closing the central air duct 201 and an open position for opening the central air duct 201. The drive assembly is connected to the multiple air guide plates 5 and can drive the air guide plates 5 to switch between the closed and open positions. The heating element 6 is located in the annular air duct 202. The head assembly has a cold air mode and a warm air mode. In the cold air mode, the drive assembly controls the air guide plates 5 to switch to the open position; in the warm air mode, the drive assembly controls the air guide plates 5 to switch to the closed position.

[0083] In this embodiment, when cold air is needed, the heating element 6 is not in operation, and the driving component controls the air guide plate 5 to switch to the open position. The airflow passes through the filter structure 14 and then enters the main air duct 101, followed by the central air duct 201 and the annular air duct 202 before being blown out, ensuring that the cold air is strong enough and has a large air volume. When hot air is needed, the driving component controls the air guide plate 5 to switch to the closed position, and the heating element 6 is in operation. The airflow passes through the filter structure 14 and then enters the main air duct 101, followed by the annular air duct 202 and the first grille 12 before being blown out. The heating element 6 is located in the annular air duct 202, and 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.

[0084] It should be noted that "multiple" means at least two, and "multiple air guides 5" specifically refers to at least two air guides 5.

[0085] 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. When the main motor 3 is in the first operating state, it drives the airflow from the first end of the air duct assembly to the second end of the air duct assembly. When the main motor 3 is in the second operating state, it drives the airflow from the second end of the air duct assembly to the first end of the air duct assembly. In the cold air mode, the main motor 3 is in the first operating state, and the filter structure 14 is at least disposed on the side of the first grille 12 away from the air duct assembly. In the warm air mode, the main motor 3 is in the second operating state, and the filter structure 14 is at least disposed on the side of the second grille 13 away from the air duct assembly.

[0086] In this embodiment, when cold air is needed, the heating element 6 is not working, the main motor 3 is in the first working state, the fan blade 4 rotates in the first direction, the filter structure 14 is at least located on the side of the first grille 12 away from the air duct assembly, and the drive component controls the air guide plate 5 to switch to the open position. Figure 1The middle arrow indicates the direction. The airflow passes through the filter structure 14 and the first grille 12 in sequence before entering the central air duct 201 and the annular air duct 202. It then passes through the main air duct 101 and the second grille 13 before being blown out, ensuring a sufficiently strong and large volume of cold air. When hot air is needed, the main motor 3 is in a second operating state, the fan blades 4 rotate in the second direction, the filter structure 14 is located at least on the side of the second grille 13 away from the air duct assembly, the drive assembly controls the air guide plate 5 to switch to the closed position, and the heating element 6 operates. Figure 2 The middle arrow indicates the direction. The airflow passes through the filter structure 14 and the second grille 13 in sequence before entering the main air duct 101. Then it passes through the annular air duct 202 and the first grille 12 before being blown out. Since the heating element 6 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 6 is located in the annular air duct 202. The air gathering effect of the annular air duct 202 makes the airflow flow evenly through the heating element 6, which can achieve the optimal heating effect.

[0087] 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.

[0088] 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.

[0089] In one embodiment, 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] In one embodiment, the outer casing 7 includes a first central connecting portion 701, a first annular connecting portion 702, and a cylindrical casing 700, and the air guide plate 5 includes a plate body 501, which is rotatably disposed between the first central connecting portion 701 and the first annular connecting portion 702.

[0094] In this embodiment, the outer shell 7 includes a first central connecting part 701, a first annular connecting part 702, and a cylindrical shell 700. The air guide plate 5 includes a plate body 501, which is rotatably disposed between the first central connecting part 701 and the first annular connecting part 702. When the air guide plate 5 is in the closed position, the plate bodies 501 of each air guide plate 5 are formed on the same plane or an annular cone surface or adjacent plate bodies 501 at least partially overlap, which can block the airflow from passing through the central air duct 201. When the air guide plate 5 is in the open position, an air-proof opening is formed between adjacent plate bodies 501 to allow the airflow to pass through the air-proof opening between the plate bodies 501.

[0095] In this embodiment, the plate 501 is a flat plate. When the plate 501 is a curved plate, when the air guide plate 5 is in the open position, the airflow passes through the space between two adjacent plates 501.

[0096] In a preferred embodiment, such as Figure 12 As shown, when the air guide plate 5 is in the open position, the plate body 501 is parallel to the axial direction of the outer shell 7.

[0097] In an alternative embodiment, the air guide plate 5 can be unfolded and retracted like a folding fan, closing the central air duct 201 when unfolded and opening the central air duct 201 when retracted.

[0098] In one specific embodiment, the air guide plate 501 is fan-shaped.

[0099] 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.

[0100] Specifically, the outer shell 7 is a one-piece molded structure.

[0101] Specifically, the cylindrical housing 700 encloses the air duct assembly.

[0102] In one embodiment, the air guide plate 5 includes a rotating shaft 502 located at at least one end of the 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 in the circumferential direction, with the rotating shaft 502 disposed in the first slots 704.

[0103] In this embodiment, the air guide plate 5 includes a rotating shaft 502 located at at least one end of the plate body 501. The rotating shaft 502 is disposed in the first slot 704, which facilitates the positioning and installation of the air guide plate 5, improves assembly efficiency, and also allows the air guide plate 5 to switch between the open and closed positions under the limitation of the first slot 704.

[0104] 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 502 located at both ends of the plate body 501, and the rotating shafts 502 at both ends are disposed in the corresponding first slots 704. Specifically, the rotating shaft 502 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 502 at the other end of the first plate body 501 is disposed in the first slot 704 on the first annular connecting portion 702.

[0105] In one embodiment, the air guide plate 5 further includes a rocker arm 503, 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 503 is disposed in the actuating grooves 801. When the rotating member 8 rotates, it drives the rocker arm 503 to move, thereby driving the air guide plate 5 to rotate.

[0106] In this embodiment, the rocker arm 503 is located in the actuation groove 801, and the rotating shafts 502 at both ends of the 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 503 to move, thereby causing the air guide plate 5 to rotate around its rotating shaft 502. 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.

[0107] Specifically, the joystick 503 and the plate 501 are not coplanar.

[0108] Specifically, the rocker arm 503 is connected to the rotating shaft 502 located in the first slot 704 on the first central connecting part 701, or the rocker arm 503 is connected to one end of the plate body 501.

[0109] 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.

[0110] 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 503 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.

[0111] 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.

[0112] In one embodiment, the drive motor 9 is disposed at the first central connection portion 701.

[0113] 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.

[0114] In this embodiment, the position of the drive motor 9 can be effectively fixed by setting the fixing plate 11.

[0115] In one embodiment, the fixing plate 11 is fixedly connected to the first central connecting part 701.

[0116] In one specific embodiment, the fixing plate 11 is connected to the first central connecting part 701 by screws and / or snap fasteners.

[0117] Specifically, such as Figure 19 As shown, the fixing plate 11 is provided with a first screw through hole 1101, such as Figure 16 and Figure 17 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.

[0118] In one embodiment, the first grille 12 includes an annular grille 1201 and a central grille 1202. The annular grille 1201 is disposed opposite to the annular air duct 202, and the central grille 1202 is disposed opposite to the central air duct 201. The annular grille 1201 and the outer shell 7 are an integral structure.

[0119] In this embodiment, the annular grille 1201 can shield the heating component 6 located within the annular air duct 202, resulting in a more aesthetically pleasing appearance. It also prevents users from accidentally inserting their hands into the annular air duct 202, thus avoiding electrical safety hazards such as burns or electric shocks. The central grille 1202 can shield the components inside the central air duct 201, further enhancing its aesthetic appeal.

[0120] 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, and 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 connected to the outer shell 7, and / or the secondary air duct structure 2 is connected to the main air duct structure 1. The secondary air duct structure 2 includes a first annular connector 204 and a second annular connector 205. A central air duct 201 is formed inside the first annular connector 204, and the gap between the first annular connector 204 and the second annular connector 205 forms an annular air duct 202.

[0121] In this embodiment, the secondary air duct structure 2 includes a first annular connector 204 and a second annular connector 205. A central air duct 201 is formed on the inner side of the first annular connector 204, and an annular air duct 202 is formed by the gap between the first annular connector 204 and the second annular connector 205. After the secondary air duct structure 2 is connected to the outer shell 7 and / or the secondary air duct structure 2 is connected to 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.

[0122] In an alternative embodiment, such as Figure 20 As shown, the secondary air duct structure 2 includes a first annular connector 204 but does not include a second annular connector 205. A central air duct 201 is formed inside the first annular connector 204, and an annular air duct 202 is formed by the gap between the outer shell 7 and the first annular connector 204.

[0123] In another alternative embodiment, the secondary air duct structure 2 includes a first annular connector 204 but does not include a second annular connector 205. A central air duct 201 is formed inside the first annular connector 204, and an annular air duct 202 is formed by the gap between the main air duct structure 1 and the first annular connector 204.

[0124] refer to Figure 15 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 connecting part 204, the first annular connecting part 204 and the second central connecting part 203 are connected by a plurality of radially arranged second connecting ribs 207, and the second annular connecting part 205 and the first annular connecting part 204 are connected by a plurality of third connecting ribs 208.

[0125] In one specific embodiment, the outer casing 7 is connected to the secondary air duct structure 2 by screws.

[0126] 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.

[0127] In one embodiment, the first annular connector 204 is provided with a plurality of second slots 210, and the first annular connector 702 is provided with a plurality of first slots 704 along the circumferential direction. The second slots 210 correspond one-to-one with the first slots 704 provided on the first annular connector 702. The rotating shaft 502 located at the end of the plate 501 away from the first central connector 701 is limited between the first slots 704 and the second slots 210.

[0128] In this embodiment, by providing a plurality of second slots 210 on the first annular connector 204, the rotating shaft 502 located at the end of the plate 501 away from the first central connecting part 701 is limited between the second slot 210 and the first slot 704 of the first annular connector 702. This can limit the position of the rotating shaft 502 at one end of the plate 501, preventing the rotating shaft 502 from coming out of the first slot 704. At the same time, it can also effectively prevent the rotating shaft 502 of the air guide plate 5 from moving up, down, left, and right significantly when it rotates.

[0129] In one specific embodiment, an annular rib 206 is connected to the inner side of the first annular connector 204, and a second slot 210 is provided on the annular rib 206.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] In one embodiment, the second central connecting part 203 is connected to the first annular connecting part 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 plate 501 is switched to the closed position, along the radial direction of the main air duct 101, the plate 501 gradually tilts away from the main air duct 101.

[0134] 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 plate 501 is switched to the closed position, along the radial direction of the main air duct 101, the plate 501 gradually tilts away from the main air duct 101. The tilted 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.

[0135] 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.

[0136] 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 open position and the closed position.

[0137] 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.

[0138] In this embodiment, the limiting rib 1102 and the limiting groove 803 cooperate to limit the rotation angle of the rotating part 8, which can ensure that the air guide plate 5 can only switch between the open position and the closed position.

[0139] 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 parallel to the axis of the central air duct 201; when the limiting rib 1102 is located at the other end of the limiting groove 803, the air guide plate 5 is in the closed position.

[0140] Specifically in one embodiment, such as Figure 19 As shown, the limiting rib 1102 is provided on the fixing plate 11, as follows: Figure 18 As shown, the limiting groove 803 is provided on the rotating part 8.

[0141] 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.

[0142] Specifically, the limiting groove 803 is an arc-shaped groove.

[0143] 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.

[0144] 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 502 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, thus preventing the air guide plate 5 from smoothly switching between the open and closed positions and improving assembly stability.

[0145] 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 502 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 limiting of the outer shell 7 and the secondary air duct structure 2, thus preventing the air guide plate 5 from smoothly switching between the open and closed positions.

[0146] 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.

[0147] 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.

[0148] 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 structures 103, and the secondary air duct structure 2 is provided with a plurality of second connecting structures 211. The first connecting structures 103 and the second connecting structures 211 are fixedly connected.

[0149] In one specific embodiment, the first connecting structure 103 is a screw through hole, and the second connecting structure 211 is a screw post.

[0150] In one embodiment, the main air duct structure 1 is connected to a oscillating motor.

[0151] In this embodiment, the oscillating motor enables the head assembly to oscillate, achieving a wider airflow range. When blowing cold air, the second grille 13 faces the user; when blowing warm air, the first grille 12 of the oscillating assembly faces the user.

[0152] In one specific embodiment, the oscillating motor can realize the pitching and swaying of the head assembly.

[0153] According to an embodiment of the present invention, another aspect provides an air outlet device, including the head assembly provided in the above embodiments.

[0154] In this air outlet device, the filter structure 14 is detachably connected to the first grille 12 and / or the second grille 13. When the first grille 12 is located on the air inlet side of the duct assembly, the filter structure 14 is at least located on the side of the first grille 12 away from the duct assembly. Therefore, external air will be filtered by the filter structure 14 before passing through the first grille 12 and entering the duct assembly. When the second grille 13 is located on the air inlet side of the duct assembly, the filter structure 14 is at least located on the side of the second grille 13 away from the duct assembly. External air will be filtered by the filter structure 14 before passing through the second grille 13 and entering the duct assembly. Therefore, the filter structure 14 filters the air before it enters the duct assembly, improving the cleanliness of the air entering the duct assembly. This can prevent or reduce dust from entering the duct assembly, avoid dust accumulation on the motor and fan blades 4, and thus extend their service life. In addition, since the filter structure 14 is detachably connected to the first grille 12 and / or the second grille 13, it is convenient to disassemble, clean and replace the filter structure 14, reducing maintenance costs. At the same time, it can be connected to the first grille 12 or the second grille 13 as needed, which improves the flexibility of use.

[0155] 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.

[0156] In one embodiment, the air outlet device is a fan or a heater.

[0157] 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), wherein the main air duct (101) is provided with a fan blade (4) and a main motor (3) capable of driving the fan blade (4) to rotate. The first grille (12) is disposed at the first end of the air duct assembly; The second grille (13) is located at the second end of the air duct assembly; The filter structure (14) is detachably connected to the first grille (12) and / or the second grille (13). When the first grille (12) is located on the air inlet side of the air duct assembly, the filter structure (14) is at least located on the side of the first grille (12) away from the air duct assembly. When the second grille (13) is located on the air inlet side of the air duct assembly, the filter structure (14) is at least located on the side of the second grille (13) away from the air duct assembly.

2. The head assembly according to claim 1, characterized in that, The filter structure (14) is provided with a first snap-fit ​​structure (1401), and the first grille (12) and / or the second grille (13) are provided with a second snap-fit ​​structure. The first snap-fit ​​structure (1401) snaps into the second snap-fit ​​structure.

3. The head assembly according to claim 2, characterized in that, The first grille (12) and / or the second grille (13) are provided with a plurality of guide grooves (1203); The first snap-fit ​​structure (1401) is provided with a plurality of such structures at intervals along a circumference. The first snap-fit ​​structure (1401) includes a first connecting part (14011) and a second connecting part (14012). The first connecting part (14011) is provided on the filter structure (14) and extends along the axial direction of the filter structure (14). The second connecting part (14012) is tangent to the circumference or the second connecting part (14012) is an arc-shaped segment extending circumferentially along the circumference. The second connecting part (14012) is provided with a first engaging part. When the filter structure (14) is rotated, the first snap-fit ​​structure (1401) is adapted to move along the guide groove (1203). The second snap-fit ​​structure includes a second engaging portion, and the first engaging portion is adapted to engage with the second engaging portion.

4. The head assembly according to claim 3, characterized in that, The first engaging portion includes one of a slot (14013) and a retaining rib (1204), and the second engaging portion includes the other of a slot (14013) and a retaining rib (1204), wherein the retaining rib (1204) is adapted to be embedded in the slot (14013).

5. The head assembly according to claim 4, characterized in that, The slot (14013) is provided on the second connecting part (14012). The slot (14013) has a protruding rib (14014) on the side away from the first connecting part (14011). When the rib (1204) is inserted into the slot (14013), the protruding rib (14014) abuts against the outer wall of the rib (1204).

6. The head assembly according to claim 4, characterized in that, The filter structure (14) is provided with a positioning rib (1402). When the first snap-fit ​​structure (1401) and the second snap-fit ​​structure are snapped together, the positioning rib (1402) abuts against the first grid (12) or the second grid (13).

7. The head assembly according to any one of claims 1 to 6, characterized in that, The air duct assembly further includes a central air duct (201) and an annular air duct (202), the central air duct (201) and the annular air duct (202) being located at one end of the main air duct (101), and the annular air duct (202) being located on the outer periphery of the central air duct (201). The head assembly further includes: The air guide plate assembly includes a plurality of air guide plates (5), the plurality of air guide plates (5) having a closed position for closing the central air duct (201) and an open position for opening the central air duct (201); A drive assembly, connected to a plurality of the air guide plates (5), is capable of driving the air guide plates (5) to switch between the closed position and the open position; A heating element (6) is disposed in the annular air duct (202); The head assembly has a cold air mode and a warm air mode. In the cold air mode, the drive assembly controls the air guide plate (5) to switch to the open position. In warm air mode, the drive component controls the air guide plate (5) to switch to the closed position.

8. The head assembly according to claim 7, 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, it drives the airflow from the first end of the air duct assembly to the second end of the air duct assembly. When the main motor (3) is in the second working state, it drives the airflow from the second end of the air duct assembly to the first end of the air duct assembly. In cold air mode, the main motor (3) is in the first working state, and the filter structure (14) is at least located on the side of the first grille (12) away from the air duct assembly; In the warm air mode, the main motor (3) is in the second working state, and the filter structure (14) is at least located on the side of the second grille (13) away from the air duct assembly.

9. The head assembly according to claim 7, 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.

10. The head assembly according to claim 9, 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 air guide plate (5) includes a plate body (501), which is rotatably disposed between the first central connecting part (701) and the first annular connecting part (702).

11. The head assembly according to claim 10, characterized in that, The air guide plate (5) includes a rotating shaft (502) located at at least one end of the 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 (502) is disposed in the first slot (704).

12. The head assembly according to claim 10, characterized in that, The air guide plate (5) also includes a rocker arm (503), 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 (503) is located in the actuating grooves (801). When the rotating component (8) rotates, it drives the rocker arm (503) to move, thereby driving the air guide plate (5) to rotate.

13. The head assembly according to claim 12, 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).

14. The head assembly according to claim 13, characterized in that, The drive motor (9) is located at the first central connection part (701).

15. The head assembly according to claim 13, 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).

16. The head assembly according to any one of claims 9 to 15, characterized in that, The first grille (12) includes an annular grille (1201) and a central grille (1202). The annular grille (1201) is arranged opposite to the annular air duct (202), and the central grille (1202) is arranged opposite to the central air duct (201). The annular grille (1201) and the outer shell (7) are an integral structure.

17. The nose assembly according to any one of claims 10 to 15, 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) is connected to the outer shell (7) and / or the secondary air duct structure (2) is connected to the main air duct structure (1). The secondary air duct structure (2) includes a first annular connector (204) and a second annular connector (205). The central air duct (201) is formed inside the first annular connector (204), and the gap between the first annular connector (204) and the second annular connector (205) forms the annular air duct (202). Alternatively, the secondary air duct structure (2) includes a first annular connector (204), the inner side of the first annular connector (204) forms the central air duct (201), and the gap between the outer shell (7) and the first annular connector (204) forms the annular air duct (202). Alternatively, the secondary air duct structure (2) includes a first annular connector (204), the inner side of the first annular connector (204) forms the central air duct (201), and the gap between the main air duct structure (1) and the first annular connector (204) forms the annular air duct (202).

18. The head assembly according to claim 17, characterized in that, The air guide plate (5) includes a plate body (501) and a rotating shaft (502) located at at least one end of the plate body (501). The first annular connector (204) is provided with a plurality of second slots (210). The first annular connecting part (702) is provided with a plurality of first slots (704) along the circumferential direction. The second slots (210) correspond one-to-one with the first slots (704) provided on the first annular connecting part (702). The rotating shaft (502) located at the end of the plate body (501) away from the first central connecting part (701) is limited between the first slots (704) and the second slots (210).

19. The head assembly according to claim 17, characterized in that, The drive assembly includes a rotating component (8), 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 component (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).

20. The head assembly according to claim 19, characterized in that, The second central connecting part (203) is connected to the first annular connecting part (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 plate (501) is switched to the closed position, along the radial direction of the main air duct (101), the plate (501) gradually tilts away from the main air duct (101).

21. The head assembly according to claim 15, 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).

22. The head assembly according to claim 19, 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).

23. The head assembly according to claim 19, 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).

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

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

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