Head unit and fan

Abstract

This application relates to a fan head assembly and a fan. The fan head assembly includes a bracket, a fan head body, and a rotating component. The fan head body is connected to the bracket and is rotatable relative to the bracket about at least a first axis and a second axis, which intersect or are not in the same plane. The fan head body has a first end and a second end in the front-rear direction, with the first end being the air outlet end. The rotating component is driven to the second end of the fan head body and is used to drive the second end to rotate eccentrically. In the above-mentioned fan head assembly, the fan head body is rotatably connected to the bracket and is rotatable in at least two directions intersecting the front-rear direction. The rotating component can drive the other end of the fan head body opposite the air outlet end to rotate eccentrically, and the air outlet end of the fan head body is correspondingly oscillating accordingly. Thus, during the corresponding oscillation of the air outlet end of the fan head body, the orientation of its air outlet end continuously changes, thereby directing the airflow to different areas and achieving the effect of expanding the airflow range.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a head unit assembly and a fan. Background Technology

[0002] Circulating fans are becoming increasingly popular due to their advantages such as more even airflow and energy saving.

[0003] In related technologies, the circular fan compresses air through large-angle axial flow blades. The air is gathered by the duct and the front mesh and then sent out by the fan. In order to ensure the air delivery distance, the air delivery range is small, making it difficult to achieve large-area coverage of the human body. Blowing air onto only one part of the human body cannot achieve the effect of cooling the whole body. Summary of the Invention

[0004] Therefore, it is necessary to provide a head unit assembly and fan that can expand the air delivery range to address the above problems.

[0005] A nose assembly, comprising:

[0006] support;

[0007] The head unit is connected to the bracket and is rotatable relative to the bracket at least around a first axis and a second axis; the first axis and the second axis are intersecting or non-plane, and both the first axis and the second axis intersect the front-rear direction of the head unit; the head unit has a first end and a second end in the front-rear direction, and the first end is the air outlet end; and

[0008] The rotating component is connected to the second end of the machine head body and is used to drive the second end to rotate eccentrically.

[0009] In one embodiment, the head assembly further includes a rotating connector, through which the head body is connected to the bracket; the rotating connector is connected to the bracket and configured to rotate relative to the bracket about the first axis; the head body is connected to the rotating connector and configured to rotate relative to the rotating connector about the second axis.

[0010] In one embodiment, the first axis and the second axis are configured to intersect.

[0011] In one embodiment, the rotating member is rotatably connected to the bracket about a third axis and has a transmission structure spaced apart from the third axis, and drives the second end to rotate eccentrically about the third axis through the transmission structure.

[0012] In one embodiment, the head body includes a fan blade, a main motor, and a drive shaft. The main motor is connected to the fan blade and is used to drive the fan blade to rotate.

[0013] The drive shaft is connected to the main motor and, through the transmission structure, is connected to the rotating component at the second end of the machine head body to prevent rotation around its own axis.

[0014] In one embodiment, the angle between the drive shaft and the third axis is configured to be adjustable.

[0015] In one embodiment, the rotating component is an arc-shaped plate, and the center of the arc-shaped plate is the intersection of the third axis and the axis of the transmission shaft.

[0016] In one embodiment, the machine head body further includes a gearbox, and the drive shaft is connected to the main motor via the gearbox.

[0017] In one embodiment, the gearbox has an operating element that operably controls the connection and disconnection of the drive shaft from the main motor.

[0018] In one embodiment, the transmission structure is a D-shaped hole, and one end of the transmission shaft is anti-rotatingly engaged with the D-shaped hole in the direction of rotation around its own axis.

[0019] In one embodiment, the rotating connector is annular and sleeved on the head body; the bracket has two connecting arms spaced apart, and the rotating connector is rotatably connected between the two connecting arms.

[0020] In one embodiment, the head assembly further includes an amplifying oscillating motor, which is drive-connected to the rotating component.

[0021] A fan comprising the aforementioned head assembly.

[0022] In one embodiment, the fan further includes a body assembly, and the head assembly is rotatably connected to the body assembly via the bracket about the height of the fan.

[0023] The aforementioned head assembly and fan have a head body rotatably connected to a bracket, capable of rotating in at least two directions intersecting the front-rear direction. The rotating component drives the opposite end of the head body, opposite the air outlet, to rotate eccentrically. Correspondingly, the air outlet of the head body swings accordingly. Thus, as the air outlet of the head body swings, its orientation continuously changes, directing airflow towards different areas and expanding the airflow range. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a fan with a head assembly in one embodiment of this application.

[0026] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0027] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the fan from another angle.

[0028] Figure 4 for Figure 1 The diagram shows the exploded structure of the fan.

[0029] Figure 5 for Figure 1 The diagram shows another exploded view of the fan.

[0030] Figure 6 for Figure 1 The diagram shows another angled exploded view of the fan.

[0031] Figure 7 for Figure 1 The diagram shows a partial structural schematic of the fan head assembly.

[0032] Figure 8 for Figure 7 The diagram shows another angle of the nose assembly.

[0033] Figure 9 for Figure 7 The diagram shows a partial cross-sectional view of the head assembly.

[0034] Explanation of reference numerals in the attached drawings: 100, Head assembly; 10, Bracket; 11, Connecting arm; 111, Rotating hole; 13, Limiting rotating hole; 20, Head body; 210, First end; 220, Second end; 230, First axis; 240, Second axis; 250, Third axis; 21, Main motor; 211, Knob; 22, Fan blade; 23, Cover; 231, Upper hole; 233, Lower hole; 24, Rear cover; 25, Mesh cover; 26 1. Drive shaft; 27. Gearbox; 271. Operating component; 30. Rotating component; 31. Rotating shaft structure; 33. Transmission structure; 35. Screw; 40. Rotating connecting component; 41. Upper rotating shaft; 43. Lower mating hole; 45. Left and right rotating shafts; 50. Pin; 51. Snap fastener; 61. Upper cover; 62. Lower cover; 70. Snap ring; 200. Fan; 201. Body assembly; 203. Upper shell; 205. Lower shell; 207. Power cord. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the term "and / or" appears, it merely describes the relationship between related objects and indicates that three relationships can exist. For example, A and / or B can represent the relationship between A and B: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects before and after it. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] In addition to the techniques described in the background section, the circulating fans in related technologies achieve circulation by simultaneously oscillating up and down and left and right in conjunction with long-distance air delivery. However, the oscillation range is mostly from 0° horizontally to 90° vertically, which does not conform to the actual height of human use. More than half of the angles are not usable, and when using the circulation function, the air blowing function cannot be achieved at certain angles. Furthermore, the automatic up and down oscillation of the circulating fan requires two separate motors to drive it, resulting in high motor costs.

[0042] Please see Figures 1 to 4 An embodiment of this application provides a head unit assembly 100, including a bracket 10, a head unit body 20, and a rotating component 30. The head unit body 20 is connected to the bracket 10 and is rotatable relative to the bracket 10 at least around a first axis 230 and a second axis 240, wherein the first axis 230 and the second axis 240 intersect or are not in the same plane. The head unit body 20 has a first end 210 and a second end 220 in the front-rear direction, and the first end 210 is the air outlet end. The rotating component 30 is drively connected to the second end 220 on the head unit body 20 and is used to drive the second end 220 to rotate eccentrically.

[0043] The head assembly 100 is used for the fan 200, which may be, but is not limited to, a circulating fan. The fan 200 also includes a chassis assembly 201, to which the head assembly 100 is connected via a bracket 10.

[0044] Understandably, to achieve its normal function, the head unit 20 includes a main motor 21, a fan blade 22, a housing 23, a rear cover 24, and a mesh cover 25. The housing 23 and the rear cover 24 are connected to form a mounting cavity, within which the main motor 21 is installed. The main motor 21 is connected to the fan blade 22 and drives it to rotate, thereby creating an airflow. The mesh cover 25 covers the fan blade 22 to prevent direct contact between the user and the fan blade 22.

[0045] The direction in which the first axis 230 is located is the first direction (e.g., Figure 3 The direction shown is the X direction), and the direction where the second axis 240 is located is the second direction (as shown in the X direction). Figure 1 (As shown in the Y direction), if the first axis 230 and the second axis 240 intersect or are not on the same plane, it means that they are not parallel to each other, and the first direction and the second direction are intersecting. It can be understood that both the first axis 230 and the second axis 240 are perpendicular to the front-rear direction of the head body 20 (e.g., in the Y direction). Figure 3The directions intersect (as shown in the Z direction), meaning the first direction, the second direction, and the front-back direction of the head unit 20 intersect each other in pairs. The front-back direction of the head unit 20 is the direction in which the air outlet of the head unit 100 faces. This front-back direction changes relative to the body assembly 201 as the head unit 20 rotates. For ease of understanding, the following explanation will assume that the first and second directions are perpendicular. When the air outlet of the head unit 20 faces horizontally, its direction is forward. Correspondingly, one of the first and second directions is the up-down direction, and the other is the left-right direction.

[0046] The head body 20 can rotate around the first axis 230 set along the first direction as the rotation axis, and the head body 20 can also rotate around the second axis 240 set along the second direction as the rotation axis, and the rotations in different directions can be combined.

[0047] The rotating component 30 is used to drive the second end 220 to rotate eccentrically. This eccentric rotation may or may not have an eccentric shaft. Furthermore, the head assembly 100 may also include a driving component for driving the rotating component 30 to drive the second end 220 to rotate eccentrically. Understandably, when the head body 20 rotates at its second end 220, the first end 210 can also be driven accordingly, that is, it can oscillate according to the eccentric rotation of the second end 220.

[0048] The aforementioned head assembly 100 has a head body 20 rotatably connected to the bracket 10, and is capable of rotating in at least two directions intersecting the front-back direction. The rotating component 30 drives the other end of the head body 20 opposite the air outlet to rotate eccentrically. Correspondingly, the air outlet of the head body 20 swings accordingly. Thus, during the swinging of the air outlet of the head body 20, the orientation of its air outlet continuously changes, thereby directing the airflow towards different areas and expanding the airflow range. Furthermore, the head assembly 100 only requires a single drive component to drive the rotating component 30 to cause the head body 20 to swing in two directions, i.e., synchronously swinging up and down and left and right.

[0049] Please refer to the following: Figures 5 to 9 In some embodiments, the head assembly 100 further includes a rotatable connector 40, through which the head body 20 is connected to the support 10. The rotatable connector 40 is connected to the support 10 and configured to rotate relative to the support 10 about a first axis 230. The head body 20 is connected to the rotatable connector 40 and configured to rotate relative to the rotatable connector 40 about a second axis 240.

[0050] Thus, the head body 20 rotates relative to the rotating connector 40, thereby achieving rotation around the second axis 240. The rotating connector 40 rotates relative to the bracket 10, thereby achieving rotation around the first axis 230.

[0051] Furthermore, the rotating connector 40 is annular and is sleeved on the machine head body 20; the bracket 10 has two connecting arms 11, which are spaced apart, and the rotating connector 40 is rotatably connected between the two connecting arms 11.

[0052] Specifically, the rotating connector 40 has an upper rotating shaft 41, and the cover 23 of the machine head body 20 has an upper hole 231 that mates with the upper rotating shaft 41. Furthermore, the rotating connector 40 also has a lower mating hole 43, and the cover 23 has a lower hole 233 corresponding to the lower mating hole 43. The machine head assembly 100 also includes a pin 50, which passes through the lower mating hole 43 and has a snap 51 that mates with the edge of the lower mating hole 43, thereby achieving a rotating connection between the rotating connector 40 and the machine head body 20. The rotating connector 40 also has two left and right rotating shafts 45, and the connecting arm 11 of the bracket 10 has a rotating hole 111 that mates with the left and right rotating shafts 45.

[0053] Understandably, the rotating connector 40 is fitted onto the cover 23 portion of the machine head body 20, and the diameter of the rotating connector 40 is larger than the diameter of the cover 23.

[0054] Thus, the machine head body 20 is rotatably connected to the rotating connecting member 40 and can rotate within a certain range within the rotating connecting member 40. Specifically, the machine head body 20 can swing left and right within the rotating connecting member 40 and can swing up and down with the rotating connecting member 40 on the two connecting arms 11.

[0055] In some other embodiments, the head body 20 can also be connected to the bracket 10 at multiple angles through a spherical connection method such as a universal joint.

[0056] In some embodiments, the first axis 230 and the second axis 240 are configured to intersect.

[0057] Understandably, the rotation of the head body 20 around the first axis 230 and the rotation around the second axis 240 can be combined to form a conical oscillation centered on the intersection of the first axis 230 and the second axis 240.

[0058] Specifically, the first axis 230 and the second axis 240 are both located between the first end 210 and the second end 220, and the center of gravity of the head body 20 is located at the intersection of the first axis 230 and the second axis 240.

[0059] In this way, the first end 210 and the second end 220 of the head body 20 can perform stable conical oscillation. By simply controlling the conical oscillation angle of the second end 220, the angle of the first end 210, which serves as the air outlet, can be accurately controlled, thus controlling its air delivery range.

[0060] Furthermore, the rotating component 30 is rotatably connected to the bracket 10 around the third axis 250, and has a transmission structure 33 spaced apart from the third axis 250, and drives the second end 220 to rotate eccentrically around the third axis 250 through the transmission structure 33.

[0061] Understandably, when the rotating component 30 rotates around the third axis 250, its upper transmission structure 33 is equivalent to revolving around the third axis 250. Correspondingly, the second end 220 driven by it also rotates eccentrically around the third axis 250. The third axis 250 may intersect the first axis 230 and the second axis 240 at a single point.

[0062] The rotating component 30 has a rotating shaft structure 31 arranged along the third axis 250, and the bracket 10 has a limiting rotating hole 13 that mates with the rotating shaft structure 31. The rotating component 30 is rotatably inserted into the limiting rotating hole 13 through the rotating shaft structure 31, thereby achieving rotation relative to the bracket 10.

[0063] Thus, the rotating component 30, through its transmission structure 33, can naturally drive the second end 220 to rotate eccentrically around the third axis 250 during its rotation around the third axis 250.

[0064] Specifically, bearings may be provided at the rotating shaft structure 31 and the limiting rotating hole 13 of the rotating component 30 to reduce the rotational resistance of the rotating component 30.

[0065] In some embodiments, the head body 20 further includes a drive shaft 26, which is connected to the main motor 21 and, at the second end 220 of the head body 20, is connected to the rotating member 30 via a transmission structure 33 in a non-rotating manner around its own axis.

[0066] Understandably, the main motor 21 is the driving component, which can be, but is not limited to, a dual-shaft motor with two output shafts located at its front and rear ends respectively. The front output shaft is connected to the fan blade 22, and the rear output shaft is connected to the drive shaft 26. The rotating component 30 is located behind the head body 20. The drive shaft 26 passes through the rear cover 24 and is anti-rotatingly connected to the rotating component 30. The drive shaft 26 can rotate under the drive of the main motor 21, and the drive shaft 26 is arranged along the front-rear direction of the head body 20 and can be coaxially arranged with the cover 23.

[0067] Since the drive shaft 26 and the rotating part 30 are connected by the transmission structure 33 to prevent rotation, it cannot rotate around its own axis when rotating. Instead, it can only rotate by driving the rotating part 30 to rotate around the third axis 250, which generates a reaction force. This force drives the second end 220 of the machine head body 20 to rotate eccentrically around the third axis 250 through the drive shaft 26. In other words, the second end 220 swings in a conical shape with a point as the apex, and the first end 210 follows in a conical shape with that point as the apex.

[0068] In this way, while the main motor 21 drives the fan blades 22 to rotate and deliver air, it can also drive the rotating component 30 through the transmission shaft 26, thereby generating a reaction force to drive the head body 20 to perform conical oscillation and expand the airflow.

[0069] Furthermore, the transmission structure 33 is a D-shaped hole, and one end of the transmission shaft 26 is anti-rotationally fitted with the D-shaped hole in the direction of rotation around its own axis.

[0070] Thus, the rotating component 30 can engage with the drive shaft 26 in a D-shape to prevent rotation. Understandably, in some other embodiments, the transmission structure 33 can also be other structures, such as a triangular hole, a square hole, etc., as long as it can achieve a non-rotational engagement with the drive shaft 26 in the direction of rotation around the axis of the drive shaft 26, and no specific limitation is made here.

[0071] In some embodiments, the rotating member 30 is an arc-shaped plate, and the center of the arc-shaped plate is the intersection of the third axis 250 and the axis of the transmission shaft 26.

[0072] Specifically, the axes of the first axis 230, the second axis 240, the third axis 250, and the drive shaft 26 can intersect at a single point.

[0073] Thus, during the rotation of the drive shaft 26 around the third axis 250, the angle between it and the rotating component 30 does not change, resulting in more stable rotation.

[0074] In some embodiments, the head body 20 further includes a reduction gearbox 27, and the drive shaft 26 is connected to the main motor 21 via the reduction gearbox 27.

[0075] Understandably, the gearbox 27 can reduce the speed output by the main motor 21 so that the speed at which it ultimately drives the drive shaft 26 meets the requirements.

[0076] In this way, the gearbox 27 can reduce the output rotation of the main motor 21, so that the speed at which it drives the machine head body 20 to perform conical oscillation is within a suitable range.

[0077] Furthermore, the gearbox 27 has an operating element 271, which operably controls the connection and disconnection of the drive shaft 26 with the main motor 21. Specifically, the operating element 271 can be, but is not limited to, a pressing element, and the gearbox can be started to drive by pressing it.

[0078] Thus, the user can control whether the machine head body 20 performs conical swaying as needed via the operating component 271.

[0079] In addition, the main motor 21 may also have a knob 211 for controlling its own start / stop and gear position.

[0080] In some other embodiments, the gearbox 27 has a control driver that controls the drive shaft 26 to be connected to and disconnected from the main motor 21 to achieve remote or automatic control.

[0081] In some embodiments, the angle between the drive shaft 26 and the third axis 250 is configured to be adjustable.

[0082] Understandably, the change in the angle between the drive shaft 26 and the third axis 250 will correspondingly change the sway angle of the head body 20.

[0083] Specifically, the rotating plate can be equipped with a transmission structure 33 at different intervals from the third axis 250, and the angle between the transmission shaft 26 and the third axis 250 can be achieved by changing the transmission structure 33 that cooperates with the transmission shaft 26.

[0084] The head unit 100 can switch between amplification and circulation functions by adjusting the angle between the drive shaft 26 and the third axis 250. Specifically, when the amplification function is activated, the cone angle of the head unit 20's conical oscillation is less than a set value; when the circulation and amplification functions are activated, the cone angle of the head unit 20's conical oscillation is not less than a set value, which can be, but is not limited to, 30°.

[0085] Thus, the user can change the swing angle of the head body 20 by adjusting the angle between the drive shaft 26 and the third axis 250 as needed.

[0086] In another embodiment, the head assembly 100 may further include an amplification and oscillation motor, which is connected to the rotating component 30, i.e., the driving component is the amplification and oscillation motor. In this way, the head assembly 100 can eliminate the need for the gearbox 27, and the amplification and oscillation can be driven independently by the amplification and oscillation motor. The amplification and oscillation motor is integrated into the control circuit to achieve independent control of the amplification and oscillation function.

[0087] The aforementioned head assembly 100 has replaced the large-angle vertical oscillation function with an air-expanding oscillation function. Specifically, the main motor 21 of the head assembly 100 is reduced in speed by the reduction gearbox 27 and then transmits torque through the coaxial drive shaft 26. This drive shaft 26 is connected to a non-concentric rotating component 30 at a certain angle. When the torque of the main motor 21 is transmitted to the rotating component 30 through the drive shaft 26, because the rotation axis of the rotating component 30 is at a certain angle to the head assembly axis, the rotation of the rotating component 30 causes the head assembly body 20 to rotate eccentrically around the axis of the rotating component 30, thereby achieving the function of conical air expansion or air circulation.

[0088] The airflow angle of the head unit 100 can be set by selecting a suitable rotating component 30 as needed. When the large-angle airflow function is set, indoor air is circulated, excluding the vertically upward angle; in this case, circulation can also function as blowing air. When the small-angle airflow function is set, the air delivery range of the fan 200 is expanded, achieving full-body airflow and effectively cooling the user's entire body evenly. This solves the problems of small direct airflow range, uneven cooling due to excessive single-point airflow, and overly harsh airflow caused by the fan 200, improving direct airflow comfort. In addition, the oscillation of the head unit 100 can be driven by the main motor 21, which helps reduce costs. Thus, the fan 200 has an airflow function, good circulation effect, large air delivery range, and can achieve circulation function at low cost.

[0089] This application also provides a fan 200, including the aforementioned head assembly 100. It can be understood that, in order to achieve its normal function, the fan 200 also includes a body assembly 201, and the head assembly 100 is connected to the body assembly 201 via a bracket 10.

[0090] In some embodiments, the head assembly 100 is rotatably connected to the body assembly 201 via a bracket 10 about the height of the fan 200.

[0091] Specifically, the fan 200 may also include a head oscillation motor, the head oscillation motor is connected to the bracket 10 and is used to drive the bracket 10 to rotate around the height direction of the fan 200.

[0092] In this way, the head assembly 100 can rotate as a whole via the bracket 10, which helps to further increase the air delivery range of the fan 200.

[0093] In addition to the above-mentioned structure, the head assembly 100 also includes an upper cover 61, a lower cover 62, a retaining ring 70, etc. The fan 200 also includes an upper housing 203, a lower housing 205, a power cord 207, etc. The assembly process of the fan 200 is briefly described below:

[0094] Place the cover 23 into the annular rotating connector 40. Insert the upper rotating shaft 41 of the rotating connector 40 into the upper hole 231 of the cover 23. Lock the snap ring 70 in the slot of the upper rotating shaft 41 of the rotating connector 40 to achieve axial positioning. Pass the pin 50 through the lower hole 233 of the cover 23 and insert it into the lower mating hole 43 of the rotating connector 40. The snap 51 of the pin 50 is engaged with the lower mating hole 43 of the rotating connector 40, thus completing the connection between the rotating connector 40 and the cover 23.

[0095] The upper cover 61 is installed on the upper end of the rotating connector 40, and the lower cover 62 is installed on the lower end of the rotating connector 40. The limiting post in the lower cover 62 is inserted into the hole of the pin 50 to further lock the buckle 51 of the pin 50 and prevent the buckle 51 of the pin 50 from disengaging. The upper cover 61 and the lower cover 62 mainly serve to decorate the appearance and protect the internal structure.

[0096] The main motor 21 and the gearbox 27 are coaxially installed inside the cover 23, and the rear cover 24 is coaxially installed on the cover 23. The drive shaft 26 of the gearbox 27 protrudes from the rear cover 24 and can rotate relative to the rear cover 24 and the cover 23, thus completing the installation of the machine head body 20.

[0097] Install the D-shaped hole of the rotating component 30 onto the drive shaft 26, and then install the entire assembly onto the bracket 10. Insert the rotating shaft structure 31 of the rotating component 30 into the limiting rotating hole 13 of the bracket 10 and fix it with screws 35. The rotating component 30 can rotate relative to the bracket 10, and the rotating shaft is the rotating shaft structure 31 of the rotating component 30. Insert the two left and right rotating shafts 45 of the rotating connector 40 into the rotating holes 111 of the connecting arm 11, and use two snap rings 70 to lock them into the slots of the left and right rotating shafts 45 of the rotating connector 40. This completes the connection of the main functional parts.

[0098] Install the above assembly onto the fuselage component 201, install the upper shell 203 and lower shell 205 to protect the internal structure and modify the appearance; install the mesh cover 25 onto the front end of the cover 23, install the fan blade 22 in the mesh cover 25 onto the shaft of the main motor 21, and arrange the power cable 207 in the above process to complete the overall assembly.

[0099] The operating logic of the aforementioned fan 200 is as follows: To activate the air supply mode, rotate the knob 211 connected to the main motor 21 to the power-on position to activate the air supply; to activate the amplification mode, press down the operating component 271 on the main motor 21, and the clutch mechanism inside the reduction gearbox 27 of the main motor 21 will start transmission, driving the transmission shaft 26 to rotate, thereby driving the rotating component to rotate. At the same time, the rotating connector 40 and the bracket 10, and the cover 23 and the rotating connector 40 will rotate relative to each other within a small range (driven) through the connecting shaft. Since the transmission shaft 26 and the rotating shaft structure 31 of the rotating component 30 are at a certain angle, when the fan head and the mesh cover 25 rotate along the rotating shaft structure 31 of the rotating component, they will oscillate in a conical manner with the rotating shaft structure 31 of the rotating component 30 as the center, thereby realizing the circulation or amplification function (when the angle between the transmission shaft 26 and the rotating shaft structure 31 of the rotating component is less than the set value, amplification is realized; when the angle between the transmission shaft 26 and the rotating shaft structure 31 of the rotating component is not less than the set value, circulation is realized).

[0100] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A head assembly, characterized in that, The head assembly includes: Support (10); The head unit (20) is connected to the bracket (10) and is rotatable relative to the bracket (10) at least around a first axis (230) and a second axis (240); the first axis (230) and the second axis (240) intersect or are not in the same plane, and both the first axis (230) and the second axis (240) intersect the front-rear direction of the head unit (20); the head unit (20) has a first end (210) and a second end (220) in the front-rear direction, and the first end (210) is the air outlet end; and The rotating component (30) is connected to the second end (220) on the head body (20) and is used to drive the second end (220) to rotate eccentrically.

2. The head assembly according to claim 1, characterized in that, The head assembly further includes a rotating connector (40), through which the head body (20) is connected to the bracket (10); the rotating connector (40) is connected to the bracket (10) and configured to rotate relative to the bracket (10) about the first axis (230); the head body (20) is connected to the rotating connector (40) and configured to rotate relative to the rotating connector (40) about the second axis (240).

3. The head assembly according to claim 2, characterized in that, The first axis (230) and the second axis (240) are configured to intersect.

4. The head assembly according to claim 3, characterized in that, The rotating component (30) is rotatably connected to the bracket (10) about the third axis (250) and has a transmission structure (33) spaced apart from the third axis (250), and drives the second end (220) to rotate eccentrically about the third axis (250) through the transmission structure (33).

5. The head assembly according to claim 4, characterized in that, The head body (20) includes a fan blade (22), a main motor (21) and a drive shaft (26). The main motor (21) is connected to the fan blade (22) and is used to drive the fan blade (22) to rotate. The drive shaft (26) is connected to the main motor (21) and, through the transmission structure (33), is connected to the rotating component (30) at the second end (220) of the machine head body (20) in a non-rotating manner around its own axis.

6. The head assembly according to claim 5, characterized in that, The angle between the drive shaft (26) and the third axis (250) is configured to be adjustable.

7. The head assembly according to claim 5, characterized in that, The rotating component (30) is an arc-shaped plate, and the center of the arc-shaped plate is the intersection of the third axis (250) and the axis of the transmission shaft (26).

8. The head assembly according to claim 5, characterized in that, The machine head body (20) also includes a reduction gearbox (27), and the drive shaft (26) is connected to the main motor (21) through the reduction gearbox (27).

9. The head assembly according to claim 8, characterized in that, The gearbox (27) has an operating element (271) that can operably control the transmission connection and disconnection of the drive shaft (26) from the main motor (21).

10. The head assembly according to claim 5, characterized in that, The transmission structure (33) is a D-shaped hole, and one end of the transmission shaft (26) is anti-rotationally engaged with the D-shaped hole in the direction of rotation around its own axis.

11. The head assembly according to claim 2, characterized in that, The rotating connector (40) is ring-shaped and is sleeved on the head body (20); the bracket (10) has two connecting arms (11) spaced apart, and the rotating connector (40) is rotatably connected between the two connecting arms (11).

12. The head assembly according to claim 1, characterized in that, The head assembly also includes an air-expanding oscillating motor, which is connected to the rotating component (30) via a drive.

13. A fan, characterized in that, Includes the nose assembly as described in any one of claims 1-12.

14. The fan according to claim 13, characterized in that, The fan also includes a body assembly (201), and the head assembly is rotatably connected to the body assembly (201) via the bracket (10) about the height direction of the fan.

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