Machine head assembly and fan

Abstract

The utility model relates to a machine head assembly and a fan. The machine head assembly comprises a support, a rotary connecting piece and a machine head body. The rotating connecting piece is connected with the support and is configured to rotate relative to the support with the first axis as a rotating shaft. The machine head body is connected with the rotating connecting piece and is configured to rotate relative to the rotating connecting piece with the second axis as the rotating shaft. The support is provided with a first wiring groove and a first wire passing hole, the rotary connecting piece is provided with a second wiring groove and a second wire passing hole, the first wire passing hole is communicated with the first wiring groove and the second wiring groove, the first axis penetrates through the first wire passing hole, the second wire passing hole is communicated with the second wiring groove and the machine head body, and the second axis penetrates through the first wire passing hole. According to the machine head assembly, the rotating connecting piece and the support as well as the rotating connecting piece and the machine head body rotate around the single axis, so that the head shaking is realized, a line passing through the machine head assembly cannot be drastically pulled and bent at a large angle, and the risk that a wire core is broken or a wire body is abraded is effectively reduced.

Description

TECHNICAL FIELD

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

[0002] Circulating fans are increasingly used due to their advantages of more uniform air flow, energy saving, and the like.

[0003] In the related art, a circulating fan compresses air through large-angle axial fan blades, and air is gathered by a wind channel and a front net and then sent out of the fan. In order to ensure the air sending distance, the air sending range is small. In order to improve the air sending coverage and speed up the air circulation efficiency in a room, some circulating fans are designed to have automatic head-shaking functions in two directions, i.e., up-down and left-right. In order to realize the functions, two synchronous motors are usually used to control the head-shaking in the two directions, respectively. The internal wiring is complex, and when the head is simultaneously opened in the up-down and left-right directions, the internal wires are easily subjected to large-angle bending or pulling due to the large movement amplitude of the head, which increases the risk of wire core breakage or wire wear. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a fan head assembly and a fan capable of reducing the risk of wire core breakage or wire wear due to head-shaking.

[0005] A fan head assembly, comprising:

[0006] a support;

[0007] a rotating connecting piece connected to the support and configured to rotate relative to the support about a first axis as a rotation axis; and

[0008] a head body connected to the rotating connecting piece and configured to rotate relative to the rotating connecting piece about a second axis as a rotation axis, the first axis and the second axis intersect or are in different planes;

[0009] The support has a first wiring groove, and the rotating connecting piece has a second wiring groove. The support further has a first wire passing hole, the first wire passing hole connects the first wiring groove and the second wiring groove, and the first axis passes through the first wire passing hole. The rotating connecting piece further has a second wire passing hole, the second wire passing hole connects the second wiring groove and an interior of the head body, and the second axis passes through the first wire passing hole.

[0010] In one embodiment, the fan head assembly has a first rotation shaft structure, an axis of the first rotation shaft structure is the first axis, the support and the rotating connecting piece are relatively rotated through the first rotation shaft structure, and the first wire passing hole is arranged in the first rotation shaft structure.

[0011] And / or, the head assembly further has a second rotating shaft structure, the axis of the second rotating shaft structure being the second axis, the head body and the rotating connector achieving relative rotation through the second rotating shaft structure, and the second wire passage hole being provided in the second rotating shaft structure.

[0012] In one embodiment, the bracket includes a first inner shell and a first outer shell, the first inner shell forming the first wiring groove, and the first outer shell covering the first inner shell;

[0013] And / or, the rotating connector includes a second inner shell and a second outer shell, the second inner shell forming the second wiring groove, and the second outer shell covering the second inner shell.

[0014] 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.

[0015] In one embodiment, the head body has a first end and a second end in the front-rear direction, and the first end is the air outlet end;

[0016] The head assembly also includes a rotating component, which is tractively connected to the second end of the head body and is used to drive the second end to rotate eccentrically.

[0017] 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.

[0018] 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.

[0019] The drive shaft is connected to the main motor and is connected to the rotating component at the second end of the machine head body via the transmission structure to prevent rotation around its own axis.

[0020] In one embodiment, the head assembly further includes an operating element that operably controls the drive shaft to be connected to and disconnected from the main motor drive.

[0021] 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.

[0022] A fan, including the aforementioned head assembly.

[0023] In the aforementioned head assembly, the wiring can be routed along the first and second wiring channels, ultimately reaching the head body. The portion of the wiring within the first wiring channel is relatively stable relative to the support, while the portion within the second wiring channel is relatively stable relative to the rotating connector. The rotating connector and the support, as well as the rotating connector and the head body, rotate around a single axis. Therefore, when the head body oscillates, the wiring experiences only minor coaxial twisting at the first and second wiring holes, without significant pulling or bending. In this way, while the head assembly oscillates, the wiring passing through it is not subjected to significant pulling or bending, effectively reducing the risk of wire breakage or wear and contributing to a longer service life. 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 the structure of the fan after the first outer shell and the second outer shell are hidden.

[0027] Figure 3 for Figure 2 The diagram shows an enlarged view of the fan at point A.

[0028] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0029] Figure 5 for Figure 1 The diagram shows a cross-sectional view of the fan from another angle.

[0030] Figure 6 for Figure 1 The diagram shows the exploded structure of the fan.

[0031] Figure 7 for Figure 1 The diagram shows another exploded view of the fan.

[0032] Figure 8 for Figure 1 The diagram shows another angled exploded view of the fan.

[0033] Figure 9 for Figure 1 The diagram shows a partial structural schematic of the fan head assembly.

[0034] Figure 10 for Figure 9 The diagram shows another angle of the nose assembly.

[0035] Figure 11 for Figure 9 The diagram shows a partial cross-sectional view of the head assembly.

[0036] Explanation of reference numerals in the attached drawings: 100, Head assembly; 10, Bracket; 11, First cable routing groove; 12, First cable passage hole; 13, First inner shell; 14, First outer shell; 15, Connecting arm; 151, Rotating hole; 16, Limiting rotating hole; 20, Rotating connector; 21, Second cable routing groove; 22, Second cable passage hole; 23, First rotating shaft structure; 24, Second rotating shaft structure; 25, Second inner shell; 26, Second outer shell; 27, Lower mating hole; 30, Head body; 310, First end; 320, Second... End; 330, First axis; 340, Second axis; 350, Third axis; 31, Main motor; 311, Knob; 32, Fan blade; 33, Cover; 331, Upper hole; 333, Lower hole; 34, Rear cover; 35, Mesh cover; 36, Drive shaft; 37, Gearbox; 371, Operating component; 40, Wiring; 50, Rotating component; 51, Central shaft structure; 53, Transmission structure; 55, Screw; 60, Pin; 61, Buckle; 200, Fan; 201, Body assembly; 202, Third wire hole. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Please see Figures 1 to 5 An embodiment of this application provides a head assembly 100, including a bracket 10, a rotating connector 20, and a head body 30. The rotating connector 20 is connected to the bracket 10 and configured to rotate relative to the bracket 10 about a first axis 330. The head body 30 is connected to the rotating connector 20 and configured to rotate relative to the rotating connector 20 about a second axis 340, wherein the first axis 330 and the second axis 340 intersect or are not in the same plane. The bracket 10 has a first cable routing groove 11 and a first cable through hole 12, and the rotating connector 20 has a second cable routing groove 21 and a second cable through hole 22. The first cable through hole 12 connects the first cable routing groove 11 and the second cable routing groove 21, and the first axis 330 passes through the first cable through hole 12. The second cable through hole 22 connects the second cable routing groove 21 and the interior of the head body 30, and the second axis 340 passes through the first cable through hole 12.

[0044] The head assembly 100 is used for the fan 200, which can be, but is not limited to, a circulating fan. 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. Understandably, to achieve its normal function, the head body 30 also includes a main motor 31, fan blades 32, a housing 33, a rear cover 34, and a mesh cover 35. The housing 33 and the rear cover 34 are connected to form a mounting cavity, and the main motor 31 is installed within the mounting cavity. The main motor 31 is connected to the fan blades 32 and drives the fan blades 32 to rotate, thereby creating an airflow. The mesh cover 35 is used to cover the fan blades 32 to prevent the user from directly contacting them. Furthermore, the head assembly 100 also includes wiring 40, which can be laid along the first wiring groove 11 and the second wiring groove 21 and extends into the head body 30.

[0045] The direction in which the first axis 330 is located is the first direction (e.g., Figure 5 The direction shown is the X direction), and the direction where the second axis 340 is located is the second direction (as shown in the X direction). Figure 1 As shown in the Y direction), the first axis 330 and the second axis 340 intersect or are not parallel, meaning 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 330 and the second axis 340 are parallel to the front-rear direction of the head body 30 (e.g., in the Y direction). Figure 5 The directions intersect (as shown in the Z direction), meaning the first direction, the second direction, and the front-back direction of the head unit 30 intersect each other in pairs. The front-back direction of the head unit 30 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 30 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 30 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 30 can rotate around a first axis 330 set along a first direction or around a second axis 340 set along a second direction, so as to realize the head body 30 swinging in at least two directions.

[0047] The aforementioned head assembly 100 allows the wiring 40 to be routed along the first wiring groove 11 and the second wiring groove 21, ultimately reaching the interior of the head body 30. The portion of the wiring 40 within the first wiring groove 11 is relatively stable relative to the support 10, while the portion within the second wiring groove 21 is relatively stable relative to the rotating connector 20. The rotating connector 20 and the support 10, as well as the rotating connector 20 and the head body 30, rotate around a single axis. Therefore, when the head body 30 oscillates, the wiring 40 experiences only a small, coaxial twist at the first wire passage hole 12 and the second wire passage hole 22, without being subjected to significant pulling or large-angle bending. Thus, while the head assembly 100 oscillates, the wiring 40 passing through it is not subjected to significant pulling or large-angle bending, effectively reducing the risk of wire core breakage or wire wear and contributing to an increased service life of the wiring 40.

[0048] In some embodiments, the head assembly 100 has a first rotating shaft structure 23, which extends along the direction of the first axis 330. The bracket 10 and the rotating connector 20 rotate relative to each other through the first rotating shaft structure 23. The first wire hole 12 is provided on the first rotating shaft structure 23.

[0049] And / or, the head assembly 100 further has a second rotating shaft structure 24, which extends along the direction of the second axis 340. The head body 30 and the rotating connector 20 rotate relative to each other through the second rotating shaft structure 24, and the second wire hole 22 is provided on the second rotating shaft structure 24.

[0050] Understandably, the rotating connector 20 and the bracket 10, as well as the rotating connector 20 and the machine head body 30, can be rotatably connected via a shaft hole fit. Specifically, the bracket 10 and the rotating connector 20 are rotatably connected around a first axis 330 via a first rotating shaft structure 23, which extends along a first direction; the rotating connector 20 and the machine head body 30 are rotatably connected around a second axis 340 via a second rotating shaft structure 24, which extends along a second direction.

[0051] The first wire-passing hole 12 is formed on the first rotating shaft structure 23 and can pass through the first rotating shaft structure 23. The second wire-passing hole 22 is formed on the second rotating shaft structure 24 and can pass through the second rotating shaft structure 24. The wire 40 can pass directly through the first rotating shaft structure 23 along the first wire-passing hole 12 and enter the second wire-passing groove 21 through the first wire-passing groove 11. Alternatively, it can pass directly through the second rotating shaft structure 24 along the second wire-passing hole 22 and enter the interior of the head body 30 through the second wire-passing groove 21.

[0052] Thus, on the one hand, the line 40 can be constrained and protected by the first rotating shaft structure 23 and the second rotating shaft structure 24. On the other hand, since the line 40 passes through the inside of the first rotating shaft structure 23 and the second rotating shaft structure 24, it is less affected by the rotation between the bracket 10 and the rotating connector 20 and between the rotating connector 20 and the machine head body 30.

[0053] In some embodiments, the rotating connector 20 is annular and sleeved on the head body 30; the bracket 10 has two connecting arms 15, which are spaced apart, and the rotating connector 20 is rotatably connected between the two connecting arms 15.

[0054] Specifically, the first axis 330 and the second axis 340 pass through the annular rotating connector 20 perpendicularly to each other and intersect on the axis of the rotating connector 20.

[0055] Understandably, the first wiring groove 11 is at least partially located on the connecting arm 15. The rotating connector 20 is fitted onto the cover 33 portion of the head body 30, and the diameter of the rotating connector 20 is larger than the diameter of the cover 33.

[0056] Thus, the head body 30 is rotatably connected to the rotating connector 20 and can rotate within a certain range within the rotating connector 20. Specifically, the head body 30 can swing left and right within the rotating connector 20 and can swing up and down with the rotating connector 20 on the two connecting arms 15.

[0057] Specifically, two first rotating shaft structures 23 are provided on the rotating connector 20, respectively located on opposite sides of the rotating connector 20. The connecting arm 15 of the bracket 10 has a rotating hole 151 that mates with the first rotating shaft structure 23. A second rotating shaft structure 24 can also be provided on the rotating connector 20. The cover 33 of the machine head body 30 has an upper hole 331 that mates with the second rotating shaft structure 24. Furthermore, the rotating connector 20 also has a lower mating hole 27, and the cover 33 has a lower hole 333 corresponding to the lower mating hole 27. The machine head assembly 100 also includes a pin 60, which passes through the lower mating hole and the lower hole 333. The pin 60 has a snap 61 that mates with the edge of the lower mating hole 27, thereby achieving a rotating connection between the rotating connector 20 and the machine head body 30.

[0058] Please refer to the following: Figures 6 to 8 In some embodiments, the bracket 10 includes a first inner shell 13 and a first outer shell 14, the first inner shell 13 forming the first wiring groove 11, and the first outer shell 14 covering the first inner shell 13; and / or, the rotating connector 20 includes a second inner shell 25 and a second outer shell 26, the second inner shell 25 forming the second wiring groove 21, and the second outer shell 26 covering the second inner shell 25.

[0059] Understandably, after the first outer shell 14 is placed over the first inner shell 13, it can cover the first wiring groove 11 and be enclosed by the first inner shell 13. Similarly, after the second outer shell 26 is placed over the second inner shell 25, it can cover the second wiring groove 21 and be enclosed by the second inner shell 25.

[0060] Thus, the first outer shell 14 and the second outer shell 26 can not only protect the wiring 40 located in the first wiring groove 11 and the second wiring groove 21, but also constrain its wiring, improve its stability, and reduce the impact of the machine head body 30 swaying on the wiring 40.

[0061] Please refer to the following: Figures 9 to 11 In some embodiments, the head body 30 has a first end 310 and a second end 320 in the front-rear direction, and the first end 310 is the air outlet end. The head assembly 100 also includes a rotating member 50, which is throttlely connected to the second end 320 on the head body 30 and is used to drive the second end 320 to rotate eccentrically.

[0062] The rotating component 50 is used to drive the second end 320 to rotate eccentrically. This eccentric rotation may or may not have an eccentric shaft. In addition, the head assembly 100 may also include a driving component, which is used to drive the rotating component 50 to drive the second end 320 to rotate eccentrically.

[0063] Understandably, when the head body 30 rotates at its second end 320, the first end 310 can also be driven accordingly, that is, it can shake its head according to the eccentric rotation of the second end 320.

[0064] Thus, the head unit 30 is rotatably connected to the bracket 10 and can rotate in at least two directions intersecting the front-back direction. The rotating component 50 can drive the other end of the head unit 30 opposite the air outlet to rotate eccentrically. Correspondingly, the air outlet of the head unit 30 swings accordingly. In this way, during the corresponding swing of the air outlet of the head unit 30, the orientation of its air outlet continuously changes, thereby directing the airflow to different areas and expanding the airflow range. Furthermore, the head unit assembly 100 only needs to be equipped with a single drive component to drive the rotating component 50 to drive the head unit 30 to swing in two directions, that is, to swing synchronously up and down and left and right.

[0065] In some embodiments, the first axis 330 and the second axis 340 are configured to intersect.

[0066] Understandably, the rotation of the head body 30 around the first axis 330 and the rotation around the second axis 340 can be combined to form a conical oscillation centered on the intersection of the first axis 330 and the second axis 340.

[0067] Specifically, the first axis 330 and the second axis 340 are both located between the first end 310 and the second end 320, and the center of gravity of the head body 30 is located at the intersection of the first axis 330 and the second axis 340.

[0068] In this way, the first end 310 and the second end 320 of the head body 30 can perform stable conical oscillation. By simply controlling the conical oscillation angle of the second end 320, the angle of the first end 310, which serves as the air outlet, can be accurately controlled, thus controlling its air delivery range.

[0069] Furthermore, the rotating member 50 is rotatably connected to the bracket 10 about the third axis 350, and has a transmission structure 53 spaced apart from the third axis 350, and drives the second end 320 to rotate eccentrically about the third axis 350 through the transmission structure 53.

[0070] Understandably, when the rotating component 50 rotates around the third axis 350, its upper transmission structure 53 is equivalent to revolving around the third axis 350. Correspondingly, the second end 320 driven by it also rotates eccentrically around the third axis 350. The third axis 350 may intersect the first axis 330 and the second axis 340 at a single point.

[0071] The rotating component 50 has a central shaft structure 51 arranged along the third axis 350, and the bracket 10 has a limiting rotating hole 16 that mates with the central shaft structure 51. The rotating component 50 is rotatably inserted into the limiting rotating hole 16 via the central shaft structure 51 and can be fixed with screws 55 to achieve rotation relative to the bracket 10.

[0072] Thus, the rotating component 50, through its transmission structure 53, can naturally drive the second end 320 to rotate eccentrically around the third axis 350 during its rotation around the third axis 350.

[0073] Specifically, bearings may be provided at the central shaft structure 51 and the limiting rotating hole 16 of the rotating component 50 to reduce the rotational resistance of the rotating component 50.

[0074] In some embodiments, the head body 30 further includes a drive shaft 36, which is drively connected to the main motor 31 and is connected to the rotating member 50 at the second end 320 of the head body 30 via the transmission structure 53 to prevent rotation around its own axis.

[0075] Understandably, the main motor 31 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 32, and the rear output shaft is connected to the drive shaft 36. The rotating component 50 is located behind the head body 30. The drive shaft 36 passes through the rear cover 34 and is anti-rotationally connected to the rotating component 50.

[0076] The drive shaft 36 can rotate under the drive of the main motor 31, and the drive shaft 36 is arranged along the front and rear direction of the machine head body 30 and can be coaxially set with the cover 33.

[0077] Since the drive shaft 36 and the rotating part 50 are connected by the transmission structure 53 to prevent rotation, it cannot rotate around its own axis when rotating. Instead, it can only rotate by driving the rotating part 50 to rotate around the third axis 350, which generates a reaction force. This force drives the second end 320 of the machine head body 30 to rotate eccentrically around the third axis 350 through the drive shaft 36. In other words, the second end 320 swings in a conical shape with a point as the apex, and the first end 310 follows in a conical shape with that point as the apex.

[0078] In this way, while the main motor 31 drives the fan blade 32 to rotate and deliver air, it can also drive the rotating part 50 through the transmission shaft 36, thereby generating a reaction force to drive the head body 30 to perform conical swinging air expansion.

[0079] Furthermore, the transmission structure 53 is a D-shaped hole, and one end of the transmission shaft 36 is anti-rotationally fitted with the D-shaped hole in the direction of rotation around its own axis.

[0080] Thus, the rotating component 50 can engage with the drive shaft 36 in a D-shape to prevent rotation. Understandably, in some other embodiments, the transmission structure 53 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 36 in the direction of rotation around the axis of the drive shaft 36, and no specific limitation is made here.

[0081] In some embodiments, the head body 30 further includes a reduction gearbox 37, and the drive shaft 36 is connected to the main motor 31 via the reduction gearbox 37.

[0082] Understandably, the gearbox 37 can reduce the speed output by the main motor 31 so that the speed at which it ultimately drives the transmission shaft 36 meets the requirements.

[0083] In this way, the gearbox 37 can reduce the output rotation of the main motor 31, so that the speed at which it drives the machine head body 30 to perform conical oscillation is within a suitable range.

[0084] In some embodiments, the head assembly 100 further includes an operating element 371, which is operable to control the transmission connection and disconnection of the drive shaft 36 with the main motor 31.

[0085] Specifically, the operating element 371 can be, but is not limited to, a pressing element, and the reducer can be started to drive by pressing.

[0086] Thus, the user can control whether the machine head body 30 performs conical swaying as needed via the operating component 371.

[0087] In addition, the main motor 31 may also have a knob 311 for controlling its own start / stop and gear position.

[0088] In some other embodiments, the gearbox 37 has a control driver that controls the drive shaft 36 to be connected to and disconnected from the main motor 31 to achieve remote or automatic control.

[0089] In some embodiments, the angle between the drive shaft 36 and the third axis 350 is configured to be adjustable.

[0090] Understandably, the change in the angle between the drive shaft 36 and the third axis 350 will correspondingly change the sway angle of the head body 30.

[0091] Specifically, the rotating plate can be provided with a transmission structure 53 at different intervals from the third axis 350, and the angle between the transmission shaft 36 and the third axis 350 can be achieved by changing the transmission structure 53 that cooperates with the transmission shaft 36.

[0092] The head unit 100 can switch between air expansion and circulation functions by adjusting the angle between the drive shaft 36 and the third axis 350. When the air expansion function is activated, the cone angle of the head unit 30's conical oscillation is less than a set value. When the air expansion function is activated, the cone angle of the head unit 30's conical oscillation is not less than a set value. The set value can be, but is not limited to, 30°.

[0093] Thus, the user can change the swing angle of the head body 30 by adjusting the angle between the drive shaft 36 and the third axis 350 as needed.

[0094] In another embodiment, the head assembly 100 may further include an amplification and oscillation motor, which is connected to the rotating component 5030, i.e., the driving component is the amplification and oscillation motor. In this way, the head assembly 100 can eliminate the need for the reduction gearbox 37, 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.

[0095] In some embodiments, the rotating member 50 is an arc-shaped plate, and the center of the arc-shaped plate is the intersection of the third axis 350 and the axis of the transmission shaft 36.

[0096] Specifically, the axes of the first axis 330, the second axis 340, the third axis 350, and the drive shaft 36 can intersect at a single point.

[0097] Thus, during the rotation of the drive shaft 36 around the third axis 350, the angle between it and the rotating part 50 does not change, making the rotation more stable.

[0098] The aforementioned head assembly 100, with its main motor 31 reduced in speed by a reduction gearbox 37, transmits torque via a coaxial drive shaft 36. This drive shaft 36 is connected to a non-concentric rotating component 50 at a certain angle. When the torque of the main motor 31 is transmitted to the rotating component 50 via the drive shaft 36, the rotation axis of the rotating component 50 is at a certain angle to the head assembly axis, causing the head assembly body 30 to rotate eccentrically around the axis of the rotating component 50, thereby achieving the function of conical air expansion or air circulation. Based on this, the wiring 40 can be routed along the first wiring groove 11 and the second wiring groove 21, ultimately reaching the head assembly body 30. The wiring 40 is constrained and protected by the first inner shell 13, the first outer shell 14, the second inner shell 25, and the second outer shell 26. When the head assembly body 30 oscillates, the wiring 40 experiences only minor coaxial torsion at the first wire hole 12 and the second wire hole 22, without being subjected to significant pulling or large-angle bending. In this way, while the head assembly 100 can swing, the line 40 passing through it will not be stretched or bent at large angles, and the risk of wire core breakage or wire wear is effectively reduced.

[0099] 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, the head assembly 100 being connected to the body assembly 201 via a bracket 10, and the body assembly 201 may have a third cable hole 202 for the cable 40 to pass through.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] The aforementioned fan 200 has its wiring 40 introduced through the third cable hole 202 at the back of the body assembly 201. It then passes sequentially through the first cable routing channel 11, the first cable hole 12, the second cable routing channel 21, and the second cable hole 22 within the bracket 10, before connecting to the main motor 31 inside the fan head body 30. When the fan head is oscillating, regardless of whether the fan head swings up and down or left and right, the entire wiring 40 will not be pulled or bent repeatedly; only the cable holes experience slight twisting. The relative movement of the internal wire cores is small, which helps extend the service life of the wiring 40.

[0104] 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.

[0105] 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); Rotary connector (20) connects to the bracket (10) and is configured to rotate relative to the bracket (10) about a first axis (330); and The head body (30) is connected to the rotating connector (20) and is configured to rotate relative to the rotating connector (20) about a second axis (340), wherein the first axis (330) intersects or is not in the same plane as the second axis (340); The bracket (10) has a first wiring groove (11), and the rotating connector (20) has a second wiring groove (21). The bracket (10) also has a first wire passage hole (12), which connects the first wiring groove (11) and the second wiring groove (21), and the first axis (330) passes through the first wire passage hole (12). The rotating connector (20) also has a second wire passage hole (22), which connects the second wiring groove (21) and the interior of the head body (30), and the second axis (340) passes through the first wire passage hole (12).

2. The head assembly according to claim 1, characterized in that, The head assembly has a first rotating shaft structure (23), the axis of the first rotating shaft structure (23) is the first axis (330), the bracket (10) and the rotating connector (20) achieve relative rotation through the first rotating shaft structure (23), and the first wire hole (12) is provided on the first rotating shaft structure (23). And / or, the head assembly also has a second rotating shaft structure (24), the axis of the second rotating shaft structure (24) is the second axis (340), the head body (30) and the rotating connector (20) achieve relative rotation through the second rotating shaft structure (24), and the second wire hole (22) is provided on the second rotating shaft structure (24).

3. The head assembly according to claim 1, characterized in that, The bracket (10) includes a first inner shell (13) and a first outer shell (14). The first inner shell (13) forms the first wiring groove (11), and the first outer shell (14) covers the first inner shell (13). And / or, the rotating connector (20) includes a second inner shell (25) and a second outer shell (26), the second inner shell (25) forming the second wiring groove (21), and the second outer shell (26) covering the second inner shell (25).

4. The head assembly according to claim 1, characterized in that, The rotating connector (20) is ring-shaped and sleeved on the head body (30); the bracket (10) has two connecting arms (15) spaced apart, and the rotating connector (20) is rotatably connected between the two connecting arms (15).

5. The head assembly according to any one of claims 1-4, characterized in that, The head body (30) has a first end (310) and a second end (320) in the front-rear direction, and the first end (310) is the air outlet end; The head assembly also includes a rotating component (50), which is tractively connected to the second end (320) on the head body (30) and is used to drive the second end (320) to rotate eccentrically.

6. The head assembly according to claim 5, characterized in that, The rotating component (50) is rotatably connected to the bracket (10) about the third axis (350) and has a transmission structure (53) spaced apart from the third axis (350), and drives the second end (320) to rotate eccentrically about the third axis (350) through the transmission structure (53).

7. The head assembly according to claim 6, characterized in that, The head body (30) includes a fan blade (32), a main motor (31) and a drive shaft (36). The main motor (31) is connected to the fan blade (32) and is used to drive the fan blade (32) to rotate. The drive shaft (36) is connected to the main motor (31) and is connected to the rotating component (50) at the second end (320) of the machine head body (30) via the drive structure (53) in a non-rotating connection around its own axis.

8. The head assembly according to claim 7, characterized in that, The head assembly also includes an operating element (371) that operably controls the transmission connection and disconnection of the drive shaft (36) from the main motor (31).

9. The head assembly according to claim 7, characterized in that, The rotating component (50) is an arc-shaped plate, and the center of the arc-shaped plate is the intersection of the third axis (350) and the axis of the transmission shaft (36).

10. A fan, characterized in that, Includes the nose assembly as described in any one of claims 1-9.

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