Fan

Abstract

The fan comprises a machine head assembly, a machine body assembly and a head shaking assembly, and the head shaking assembly is arranged between the machine head assembly and the machine body assembly and connected with the machine head assembly and the machine body assembly. The head shaking assembly comprises a head shaking motor and a clutch mechanism, the head shaking motor is configured to be capable of driving the machine head assembly to rotate around a first axis through the first transmission path and driving the machine head assembly to rotate around a second axis through the second transmission path, and the direction of the second axis intersects with the direction of the first axis. The clutch mechanism is configured to be capable of controlling connection and disconnection of the first transmission path and the second transmission path. According to the fan, the head shaking assembly is lower in height and closer to the supporting center of the base plate, the problem of gravity center deviation is solved, and the whole fan is more stable. Besides, the fan can realize bidirectional head shaking and unidirectional head shaking only by adopting a single head shaking motor, and start and stop of head shaking in corresponding directions are independently controlled through a clutch mechanism, so that the fan needs fewer motors, wiring is easier, and left and right head shaking loads are smaller.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a fan. Background Technology

[0002] To expand the air delivery range, many fans have an oscillation function. Specifically, fans with an oscillation function usually use an oscillation motor to drive the fan head to rotate, thus achieving oscillation.

[0003] However, in related technologies, to achieve oscillation in both the up-and-down and left-and-right directions, two motors need to be independently controlled. This not only results in high costs and low assembly efficiency but also occupies a large space, leading to a bulky appearance. Furthermore, the motor controlling the up-and-down oscillation needs to be mounted at the head of the unit, which can easily cause a significant misalignment between it and the center of the fan chassis. This raises and shifts the center of gravity of the entire unit, negatively impacting its overall stability. Utility Model Content

[0004] Therefore, it is necessary to provide a fan that can improve the overall stability of the machine to address the above problems.

[0005] A fan includes a head assembly, a body assembly, and an oscillation assembly, wherein the oscillation assembly is disposed between the head assembly and the body assembly and is connected to both; the oscillation assembly includes:

[0006] A oscillating motor is configured to drive the head assembly to rotate about a first axis via a first transmission path and to drive the head assembly to rotate about a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis; and

[0007] A clutch mechanism configured to control the connection and disconnection between the first transmission path and the second transmission path.

[0008] In one embodiment, the oscillating assembly further includes a mounting bracket, a first rotating seat, and a second rotating seat. The head assembly is rotatably mounted on the mounting bracket about the first axis. The first rotating seat and the second rotating seat are rotatably engaged about the second axis. The mounting bracket is mounted on the first rotating seat. The second rotating seat is fixedly connected to the fan body assembly. The oscillating motor is mounted on the first rotating seat.

[0009] In one embodiment, the fuselage assembly includes a support rod and a chassis, the chassis having a support surface on the side facing away from the support rod, and the axis of the support rod coinciding with the second axis and passing through the geometric center of the support surface.

[0010] In one embodiment, the oscillating motor has a drive shaft and a transmission shaft, the drive shaft being driven to the head assembly, and the transmission shaft being driven to the drive shaft and engaging with the second rotating seat in a rotational direction around the second axis to form the second transmission path.

[0011] In one embodiment, the drive shaft has a first engagement end face at one end in the axial direction, and the transmission shaft has a second engagement end face at one end in the axial direction, the first engagement end face and the second engagement end face being configured to engage with each other;

[0012] The clutch mechanism has a paddle portion that is tractively connected to the drive shaft and / or the transmission shaft, and is configured to drive the transmission shaft to engage and disengage with the drive shaft axially.

[0013] In one embodiment, the end section of the drive shaft away from the second meshing end face is non-circular, and the second rotating seat has a mating shaft hole that mates with the end of the drive shaft;

[0014] And / or, the first rotating seat has a rotating shaft structure that extends along the direction of the second axis, and the second rotating seat has a rotating groove that mates with the rotating shaft structure.

[0015] In one embodiment, the fan further includes a transmission mechanism that drivesly connects the oscillating motor and the head assembly to form the first transmission path;

[0016] The transmission mechanism has a transmission state and a non-transmission state. The clutch mechanism is connected to the transmission mechanism and is configured to drive the transmission mechanism to switch between the transmission state and the non-transmission state.

[0017] In one embodiment, the transmission mechanism includes a rack and a transmission gear, the rack being disposed on the head assembly and arranged around the first axis;

[0018] The transmission gear includes a first gear and a second gear, wherein the first gear is configured with its axis parallel to the second axis, and the second gear is configured with its axis parallel to the first axis;

[0019] The first gear has a first conical tooth portion, and the second gear has a first conical tooth portion and a second cylindrical tooth portion. The first conical tooth portion meshes with the first conical tooth portion, and the second cylindrical tooth portion meshes with the rack. The first gear is configured to be movably arranged and has a driving position and a non-driving position. The clutch mechanism is drivenly connected to the first gear and configured to drive the first gear to switch between the driving position and the non-driving position. When the first gear is in the driving position, it meshes with the second gear, and the transmission mechanism is in a driving state. When the first gear is in the non-driving position, it disengages from the second gear, and the transmission mechanism is in a non-driving state.

[0020] In one embodiment, the clutch mechanism includes an operating member and a first latch. The operating member has a driving part and a locking part. The driving part cooperates with the first gear. The operating member drives the first gear to move through the driving part. When the operating member drives the first gear to move to the transmission position and / or the non-transmission position, the locking part engages with the first latch.

[0021] In one embodiment, the operating member is configured to move in the engagement direction until the locking portion engages with the first latch; the clutch mechanism further includes a first elastic member that cooperates with the operating member and is configured to provide a driving force to drive the operating member to move in a direction opposite to the engagement direction;

[0022] The first buckle has a first guide surface, which intersects with the engagement direction and serves to guide the engagement of the first buckle.

[0023] The clutch mechanism further includes a second elastic element, and the operating element also has an unlocking part. The unlocking part is located upstream of the locking part in the engagement direction. The unlocking part has a contact surface and a second guide surface. The contact surface is located downstream of the second guide surface in the engagement direction. The unlocking part is configured to move relative to the locking part in a direction parallel to the engagement direction. The second elastic element is located between the locking part and the unlocking part and can be compressed until the contact surface abuts against the locking part. The second guide surface intersects the engagement direction and is used to generate a guide for disengaging from the first latch.

[0024] In one embodiment, the clutch mechanism includes an operating element configured to move between sequentially configured first, second, and third positions;

[0025] In the first position, the operating member cuts off the first transmission path, and the second transmission path is connected; in the second position, both the first transmission path and the second transmission path are connected; in the third position, the operating member cuts off the second transmission path, and the first transmission path is connected.

[0026] In the aforementioned fan, the oscillation assembly that drives the head assembly to oscillate is located between the head assembly and the body assembly, rather than on the head assembly itself. This results in a lower oscillation assembly height, and its placement on the body assembly allows it to be closer to the chassis's support center, improving the issue of center of gravity misalignment and making the entire fan more stable. Furthermore, the fan uses an oscillation motor to drive the head assembly to oscillate up and down and left and right, and a clutch mechanism controls the on / off of the oscillation motor's transmission path, thus independently controlling the start and stop of oscillation in the corresponding direction. This means the fan can achieve bidirectional oscillation and two types of unidirectional oscillation using only a single oscillation motor. Consequently, the fan requires fewer motors, wiring is easier, and when oscillating left and right, the oscillation motor does not need to drive a separate oscillation motor, resulting in a lower drive load. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the fan structure in one embodiment of this application.

[0029] Figure 2 for Figure 1 The diagram shows the exploded structure of the fan.

[0030] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the fan.

[0031] Figure 4 for Figure 3 The diagram shows an enlarged view of the fan's operating mechanism at point A when the locking part is not engaged with the first latch.

[0032] Figure 5 for Figure 4 The diagram shows an enlarged view of the fan at point B.

[0033] Figure 6 for Figure 3 The diagram shows an enlarged view of the locking part of the operating component in the fan when it is engaged with the first latch at point A.

[0034] Figure 7 for Figure 3 The diagram shows an enlarged view of the unlocking part of the fan's operating mechanism at point A when it engages with the first latch.

[0035] Figure 8 for Figure 1 The diagram shows a partial cross-sectional view of the fan's oscillation assembly.

[0036] Figure 9 for Figure 1 The diagram shows the structure of the rack in the fan.

[0037] Figure 10 for Figure 1 The diagram shows the structure of the first gear in the fan.

[0038] Figure 11 for Figure 1 The diagram shows the structure of the second gear in the fan.

[0039] Figure 12 for Figure 1 The diagram shows the structure of the drive gear in the fan.

[0040] Figure 13 for Figure 1 The diagram shows the structural structure of the housing of the oscillating component in the fan.

[0041] Figure 14 for Figure 1 The diagram shows a partial structural schematic of the operating components in the fan.

[0042] Figure 15 for Figure 1 The diagram shows the structure of the locking part of the operating component in the fan.

[0043] Figure 16 for Figure 1 The diagram shows the structure of the unlocking part of the operating component in the fan.

[0044] Figure 17 for Figure 1 The diagram shows the structure of the first rotating base in the fan.

[0045] Figure 18 for Figure 1 The diagram shows the structure of the oscillating motor in the fan.

[0046] Figure 19 for Figure 1 The diagram shows the structure of the second rotating base of the fan cooperating with the body assembly.

[0047] Explanation of reference numerals in the attached drawings: 100, Fan; 10, Head assembly; 11, Main motor; 12, Fan blade; 13, Housing; 131, Mounting part; 30, Body assembly; 31, Support rod; 33, Chassis; 50, Oscillating assembly; 51, Oscillating motor; 511, Drive gear; 513, Drive shaft; 5131, First meshing end face; 515, Transmission shaft; 5151, Second meshing end face; 517, Internal gear of the motor; 53 531. Clutch mechanism; 5312. Operating element; 5313. Drive unit; 5314. Locking unit; 5315. Second locking surface; 5316. Third guide surface; 5317. Recessed hole; 5318. Unlocking unit; 5319. Contact surface; 5310. Second guide surface; 5310. Receiving groove; 5311. Main body; 532. Paddle part; 5331. First latch; 5332. First locking surface 535. First elastic element; 536. Second elastic element; 537. Third elastic element; 55. Transmission mechanism; 551. First gear; 5511. First conical tooth; 5512. First cylindrical tooth; 552. Second gear; 5521. Second conical tooth; 5522. Second cylindrical tooth; 553. Rack; 5531. First tooth; 5533. Second tooth; 5535. Strip-shaped clearance; 571. 572. Arc-shaped mating surface; 573. Support body; 574. Outer shell; 575. Mounting groove; 576. Gear groove; 5777. Assembly groove; 5778. Support roller; 599. First rotating seat; 5911. Column; 5913. Rotating shaft structure; 5915. Slot; 5998. Second rotating seat; 5911. Mating shaft hole; 5932. Rotating groove; 5933. Second snap-fit; 5934. Annular groove; 70. Wiring. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] In addition to the background art, in related technologies, the two motors used to achieve oscillation are usually spatially dispersed, which increases the amount of wiring. The motor controlling the up-and-down oscillation is positioned high and far from the chassis support center. Furthermore, the motor controlling the left-and-right oscillation not only needs to drive the head motor but also needs to synchronously drive the other motor, resulting in a larger drive load, higher requirements for motor driving force, and increased costs.

[0055] Please see Figures 1 to 3 To address the aforementioned problems, one embodiment of this application provides a fan 100 including a head assembly 10, a body assembly 30, and an oscillating assembly 50. The oscillating assembly 50 is disposed between the head assembly 10 and the body assembly 30, and connects both. The oscillating assembly 50 includes an oscillating motor 51 and a clutch mechanism 53. The oscillating motor 51 is configured to drive the head assembly 10 to rotate around a first axis via a first transmission path and to drive the head assembly 10 to rotate around a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis. The clutch mechanism 53 is configured to control the on / off state of the first and second transmission paths.

[0056] The fan 100 can be, but is not limited to, a circulating fan. Specifically, the body assembly 30 includes a support rod 31 and a chassis 33. The oscillation assembly 50 is located at the top of the support rod 31, and the head assembly 10 is located on the oscillation assembly 50. The chassis 33 is connected to the bottom end of the support rod 31. Understandably, to achieve its normal function, the head assembly 10 includes a main motor 11, fan blades 12, and a housing 13. The main motor 11 and fan blades 12 are installed inside the housing 13. The main motor 11 is connected to the fan blades 12 and drives the fan blades 12 to rotate, thereby forming an airflow.

[0057] The transmission path refers to the transmission path of the torque output by the oscillating motor 51. The oscillating motor 51 can drive the head assembly 10 directly or indirectly. Indirect drive means that there is a transmission mechanism 55 between the oscillating motor 51 and the head assembly 10. The transmission mechanism 55 is used to transmit torque and is located in the transmission path as part of the transmission path.

[0058] The direction of the second axis intersects the direction of the first axis, meaning the head assembly 10 can rotate in two different directions. The first axis is the first direction, which intersects the height direction of the fan 100, which is the vertical direction during normal use. The second axis is the second direction, which intersects the horizontal direction and, understandably, also intersects the first direction. For ease of understanding, the following explanation will use the first direction as the horizontal direction, specifically the left-right direction of the fan 100, and the second direction as the vertical direction.

[0059] The aforementioned fan 100, with its oscillating component 50 for driving the head assembly 10 to oscillate, is positioned between the head assembly 10 and the body assembly 30, rather than on the head assembly 10 itself. This results in a lower oscillating component 50, and its placement on the body assembly 30 allows it to be closer to the support center of the chassis 33, improving the center of gravity misalignment and making the fan 100 more stable. Furthermore, the fan 100 drives the head assembly 10 to oscillate up and down and left and right via an oscillating motor 51, and controls the on / off of the transmission path of the oscillating motor 51 through a clutch mechanism 53, thereby independently controlling the start and stop of oscillation in the corresponding direction. In other words, the fan 100 can achieve bidirectional oscillation and two types of unidirectional oscillation using only a single oscillating motor 51. This reduces the number of motors required for the fan 100, simplifies wiring, and eliminates the need for an additional oscillation motor when oscillating left and right, resulting in a lower drive load.

[0060] Please refer to the following: Figures 4 to 7 In some embodiments, the clutch mechanism 53 includes an operating element 531, which is configured to move between a first position, a second position, and a third position in sequence.

[0061] In the first position, the operating element 531 cuts off the first transmission path and the second transmission path is connected; in the second position, both the first and second transmission paths are connected; in the third position, the operating element 531 cuts off the second transmission path and the first transmission path is connected.

[0062] Understandably, when the first transmission path is cut off and the second transmission path is connected, the oscillating motor 51 starts, and the head assembly 10 only oscillates left and right. When both the first and second transmission paths are connected, the oscillating motor 51 starts, and the head assembly 10 simultaneously oscillates up and down and left and right; this position is also the initial position of the operating element 531. When the second transmission path is cut off and the first transmission path is connected, the head assembly 10 only oscillates up and down.

[0063] Thus, the user can switch the head assembly 10 between three different oscillation states simply by moving the drive actuator 531 between the first position, the second position, and the third position.

[0064] Please refer to the following: Figure 8 In some embodiments, the oscillating assembly 50 further includes a mounting support, a first rotating seat 591, and a second rotating seat 593. The head assembly 10 is rotatably mounted on the mounting support about a first axis. The first rotating seat 591 and the second rotating seat 593 are rotatably engaged about a second axis. The mounting support is mounted on the first rotating seat 591. The second rotating seat 593 is fixedly connected to the body assembly 30 of the fan 100. The oscillating motor 51 is mounted on the first rotating seat 591.

[0065] The head assembly 10 rotates around a first axis to achieve vertical oscillation, i.e., pitch oscillation. Simultaneously, the head assembly 10 is indirectly mounted on a first rotating base 591 via a mounting bracket. The first rotating base 591 can rotate relative to a second rotating base 593 around a second axis, and the second rotating base 593 is fixed to the support rod 31 of the body assembly 30. Therefore, when the first rotating base 591 rotates relative to the second rotating base 593 around the second axis, the oscillation motor 51 located on the first rotating base 591, the mounting bracket, and the head assembly 10 located on the mounting bracket all rotate accordingly, achieving horizontal oscillation of the head assembly 10.

[0066] Specifically, the oscillating motor 51 can be driven to the second rotating seat 593, and through the reaction force generated by the second rotating seat 593, it drives the first rotating seat 591 to rotate relative to the second rotating seat 593 around the second axis.

[0067] Thus, the oscillating motor 51 and the head assembly 10 are both directly or indirectly mounted on the first rotating base 591 and can rotate together around the second axis. Therefore, the oscillating motor 51 can drive the first rotating base 591 to rotate relative to the second rotating base 593, thereby realizing the left and right oscillation of the head assembly 10.

[0068] Furthermore, the chassis 33 has a support surface on the side facing away from the support rod 31, and the axis of the support rod 31 coincides with the second axis and passes through the geometric center of the support surface.

[0069] Understandably, the chassis 33 can be supported on the plane where the fan 100 is installed, such as the ground, via the support surface. Specifically, the first rotating seat 591 and the second rotating seat 593 are located at the top of the support rod 31, and the axes of the two rotating seats coincide with the second axis and pass through the geometric center of the support surface. The first axis can intersect with the second axis.

[0070] Thus, the center of the left and right swaying of the head assembly 10 is located at the center of the support surface. The swaying assembly 50 is connected to the support rod 31, and their axes coincide. The swaying assembly 50 is located at the center of the support surface and can drive the head assembly 10 to rotate around the center line of the support surface. The probability of the swaying assembly 50 and the head assembly 10 being misaligned is reduced.

[0071] In some embodiments, the fan 100 further includes a transmission mechanism 55, which is driveably connected to the oscillating motor 51 and the head assembly 10 to form a first transmission path. The transmission mechanism 55 has a driving state and a non-driving state, and a clutch mechanism 53 is driveably connected to the transmission mechanism 55 and configured to drive the transmission mechanism 55 to switch between the driving state and the non-driving state to control the on / off state of the first transmission path.

[0072] Understandably, in the transmission state, the transmission mechanism 55 drives the oscillating motor 51 and the head assembly 10, and the oscillating motor 51 can drive the head assembly 10 to rotate around the first axis through the transmission mechanism 55. When the transmission mechanism 55 is in the non-transmission state, the oscillating motor 51 cannot drive the head assembly 10 to rotate around the first axis through the transmission mechanism 55, and the clutch mechanism 53 can control the state switching of the transmission mechanism 55.

[0073] In this way, the user can control the transmission mechanism 55 to switch between the transmission state and the non-transmission state through the clutch mechanism 53, and then control the on and off of the first transmission path when the oscillating motor 51 is started, that is, control the start and stop of the fan 100 to oscillate up and down.

[0074] Please refer to the following: Figures 9 to 12Furthermore, the transmission mechanism 55 includes a rack 553 and a transmission gear. The rack 553 is disposed on the head assembly 10 and arranged around a first axis. The transmission gear includes a first gear 551 and a second gear 552. The first gear 551 is configured with its axis parallel to a second axis, and the second gear 552 is configured with its axis parallel to the first axis. The first gear 551 has a first conical tooth portion 5511, and the second gear 552 has a second conical tooth portion 5521 and a second cylindrical tooth portion 5522. The first conical tooth portion 5511 meshes with the second conical tooth portion 5521, and the second cylindrical tooth portion 5522 meshes with the rack 553. The first gear 551 is configured to be movably disposed and has a driving position and a non-driving position. The clutch mechanism 53 is drively connected to the first gear 551 and is configured to drive the first gear 551 to switch between the driving position and the non-driving position. When the first gear 551 is in the transmission position, it meshes with the second gear 552, and the transmission mechanism 55 is in the transmission state; when the first gear 551 is in the non-transmission position, it disengages from the second gear 552, and the transmission mechanism 55 is in the non-transmission state.

[0075] Specifically, the housing 13 of the head assembly 10 has a mounting portion 131, which is arc-shaped and has its axis as the first axis. A rack 553 is mounted on the mounting portion 131. The housing 13 also has an air inlet and an air outlet. The mounting portion 131 is located facing the air inlet, and the rack 553 is located on the side of the mounting portion 131 facing away from the air inlet. The meshing teeth of the rack 553 are located on the side of the rack facing away from the mounting portion 131.

[0076] The drive shaft 513 of the oscillating motor 51 can be arranged parallel to the second axis. In addition, the fan 100 may also include a drive gear 511, which is sleeved on the drive shaft 513 of the oscillating motor 51 and meshes with the first cylindrical tooth 5512.

[0077] Thus, the torque output by the oscillating motor 51 can be converted into the desired direction by the cooperating first gear 551 and second gear 552, and then driven by the second cylindrical teeth 5522 of the second gear 552 through the rack 553 to rotate the head assembly 10 around the first axis. The clutch mechanism 53 only needs to drive the first gear 551 to switch between the transmission position and the non-transmission position to control the transmission mechanism 55 to switch between the transmission state and the non-transmission state, which is simple and reliable.

[0078] Furthermore, the second gear 552 has two sets of second cylindrical teeth 5522, which are located on both sides of the first conical tooth 5511 in the axial direction. The rack 553 has a first tooth 5531 and a second tooth 5533, which mesh with the two sets of second cylindrical teeth 5522 respectively, and the first tooth 5531 and the second tooth 5533 form a strip-shaped clearance opening 5535 in the axial direction of the second gear 552 to avoid the first conical tooth 5511.

[0079] Understandably, the first tooth 5531 meshes with the second cylindrical tooth 5522 on one side of the second gear 552, and the second tooth 5533 meshes with the second cylindrical tooth 5522 on the other side of the second gear 552.

[0080] This helps improve the transmission stability between the rack 553 and the second gear 552.

[0081] In some embodiments, the mounting support has an arc-shaped mating surface 571, the axis of which is a first axis. The head assembly 10 engages with the arc-shaped mating surface 571 via the mounting part 131 and can slide along the arc-shaped mating surface 571 to rotate around the first axis.

[0082] Since the axis of the arc-shaped mating surface 571 is the first axis, the head assembly 10 can rotate around the first axis by sliding the mounting part 131 along the arc-shaped mating surface 571.

[0083] In this way, the head assembly 10 can achieve stable rotation relative to the mounting support by sliding along the arc-shaped mating surface 571.

[0084] Please refer to the following: Figure 13 Specifically, the mounting bracket includes a bracket body 572, a housing 573, and a limiting cover (not shown). The bracket body 572 forms an arc-shaped mating surface 571. The housing 573 is mounted on the first rotating seat 591 and can be connected to the first rotating seat 591 by screws. The top of the housing 573 has a mounting groove 5731, and the bracket body 572 is disposed in the mounting groove 5731. The top of the bracket body 572 can pass through the rack 553 through the strip-shaped clearance opening 5535 and engage with the mounting part 131. In addition, the top of the housing 573 can also form a gear groove 5733, and the second gear 552 is installed in the gear groove 5733. The limiting cover is disposed on the arc-shaped mating surface 571 of the bracket body 572, and the mounting part 131 is at least partially located between the bracket body 572 and the limiting cover to limit the mounting part 131 between the two and prevent the head assembly 10 from detaching.

[0085] Furthermore, the mounting bracket also includes a support roller 574, the axial direction of which is parallel to the first axis. The support roller 574 is located on the bracket body 572 and at the arc-shaped mating surface 571, and the rolling support mounting part 131.

[0086] Thus, the support roller 574 can support the mounting part 131 and make it slide more smoothly along the arc-shaped mating surface 571, which helps the head assembly 10 to swing up and down.

[0087] Specifically, the support roller 574 includes an outer roller and an inner roller, and the support body 572 has a first shaft hole and a second shaft hole. The outer roller is installed on the support body 572 through the first shaft hole, and the inner roller is installed on the support body 572 through the second shaft hole.

[0088] Please refer to the following: Figures 14 to 16 In some embodiments, the clutch mechanism 53 further includes a first latch 533, and the operating member 531 has a driving part 5311 and a locking part 5312. The driving part 5311 cooperates with the first gear 551, and the operating member 531 drives the first gear 551 to move through the driving part 5311. When the operating member 531 drives the first gear 551 to the transmission position and / or the non-transmission position, the locking part 5312 engages with the first latch 533. Specifically, the first gear 551 may have a mating hole, and the driving part 5311 is partially inserted into the hole.

[0089] Understandably, when the operating member 531 is in the initial and third positions, the first gear 551 is in the transmission position. The first latch 533 is fixed relative to the second gear 552. After the locking part 5312 engages with the first latch 533, it can limit the operation member 531, thus fixing the first gear 551 relative to the second gear 552, allowing the first gear 551 to stably occupy the transmission position and / or non-transmission position. Furthermore, the limiting effect created by the engagement of the first latch 533 can be overcome and released by external force.

[0090] Thus, the user can drive the first gear 551 to move through the operating element 531, and the first latch 533 enables the first gear 551 to remain in the transmission position and / or non-transmission position after the user removes the external force.

[0091] Furthermore, the operating element 531 is configured to be able to move along the engagement direction (e.g., Figure 4The clutch mechanism 53 (in the X direction shown) moves to the locking part 5312 and engages with the first latch 533. The clutch mechanism 53 also includes a first elastic element 535, which cooperates with the operating member 531 and is configured to provide a driving force to move the operating member 531 in the opposite direction to the engagement direction. The first latch 533 has a first guide surface 5331, which intersects the engagement direction and serves to guide the engagement of the first latch 533. The clutch mechanism 53 also includes a second elastic element 536. The operating member 531 also has an unlocking part 5316, which is located upstream of the locking part 5312 in the engagement direction. The unlocking part 5316 has a contact surface 5317 and a second guide surface 5318, with the contact surface 5317 located downstream of the second guide surface 5318 in the engagement direction. The unlocking part 5316 is configured to move relative to the locking part 5312 in a direction parallel to the engagement direction. The second elastic member 536 is disposed between the locking part 5312 and the unlocking part 5316 and can be compressed until the contact surface 5317 abuts against the locking part 5312. The second guide surface 5318 intersects the engagement direction and is used to guide the disengagement from the first latch 533.

[0092] Understandably, the first position, the second position, and the third position are set sequentially along the engagement direction. That is, the operating member 531, which is in the initial position, can reach the third position along the engagement direction and fall to the first position in the opposite direction of the engagement direction.

[0093] When the operating member 531 drives the first gear 551 to a non-transmission position, the locking part 5312 engages with the first latch 533. One end of the locking part 5312 may have a recess 5315 for assembling the first elastic member 535. The first latch 533 is capable of elastic deformation, and the locking part 5312, guided by the first guide surface 5331, can press and engage with the first latch 533.

[0094] The contact surface 5317 of the unlocking part 5316 or the surface of the locking part 5312 facing the unlocking part 5316 may have a receiving groove 5319. The receiving groove 5319 is used to receive the second elastic member 536 located between the unlocking part 5316 and the locking part 5312, so that the unlocking part 5316 abuts against the locking part 5312. For ease of understanding, the process of the operating member 531 engaging with the first latch 533 is briefly explained below:

[0095] When the locking portion 5312 of the operating member 531 is not engaged with the first latch 533, it is located upstream of the first latch 533 in the engagement direction, and the unlocking portion 5316 is spaced apart from the locking portion 5312 under the action of the second elastic member 536. When the operating member 531 is subjected to external force and moves in the engagement direction, it compresses the first elastic member 535, and the locking portion 5312, under the action of the first guide surface 5331, squeezes and engages with the first latch 533. At this time, the first gear 551 is in a non-transmission position, and the transmission mechanism 55 is in a non-transmission state. Based on this, an external force is continued to be applied to the operating member 531, driving it to continue moving in the engagement direction and continuing to compress the first elastic member 535 until the unlocking part 5316, under the action of the first guide surface 5331, causes the second guide surface 5318 to engage with the first latch 533. At this time, the external force is removed, and under the action of the first elastic member 535, the locking part 5312 moves in the opposite direction of the engagement direction to abut against the unlocking part 5316. The locking part 5312 and the unlocking part 5316 form a whole and are jointly driven by the first elastic member 535 and guided by the second guide surface 5318, breaking open and disengaging from the first latch 533, so that the operating member 531 returns to the initial position.

[0096] In this way, the user can switch the transmission mechanism 55 to the non-transmission state by moving the drive operating member 531 in the engagement direction, and can continue to move the drive operating member 531 in the engagement direction to switch the transmission mechanism 55 back to the transmission state.

[0097] Specifically, the first latch 533 also has a first locking surface 5332, which is located downstream of the first guide surface 5331 in the engagement direction. The locking part 5312 has a second locking surface 5313, and both the first locking surface 5332 and the second locking surface 5313 are perpendicular to the engagement direction. When the locking part 5312 engages with the first latch 533, it moves until the first locking surface 5332 and the second locking surface 5313 come into contact, thus achieving engagement between the locking part 5312 and the first latch 533.

[0098] Understandably, the second guide surface 5318 can cover the second locking surface 5313. In other words, the second guide surface 5318 can fully block the second locking surface 5313 relative to the first locking surface 5332 of the first latch 533, so as to guide the locking part 5312 and prevent its second locking surface 5313 from abutting against the first locking surface 5332 and engaging.

[0099] Thus, the first locking surface 5332 abuts against the second locking surface 5313, thereby creating an engaging effect between the locking part 5312 and the first buckle 533, which limits the operation member 531 in the opposite direction to the engaging direction.

[0100] Furthermore, the locking part 5312 may also have a third guide surface 5314, which is located downstream of the second locking surface 5313 in the engagement direction, and all third guide surfaces 5314 intersect with the engagement direction. The third guide surface 5314 also provides guidance for the locking part 5312 to engage with the first latch 533, and the angle of the third guide surface 5314 may be consistent with the angle of the first guide surface 5331 so that the two can cooperate and guide each other.

[0101] In some embodiments, the operating member 531 is configured to drive the first gear 551 to move in the engagement direction, and the clutch mechanism 53 further includes a third elastic member 537, which engages with the first gear 551 and is configured to provide a driving force to drive the operating member 531 to move in the opposite direction to the engagement direction.

[0102] Understandably, the operating element 531 can push the first gear 551 to move under the action of an external force, and push it to the non-transmission position. The third elastic element 537 is used to generate a force in the opposite direction, so as to push the first gear 551 in the opposite direction when the external force is removed, and to reach the transmission position.

[0103] Thus, the operating member 531 only needs to be able to push the first gear 551 to move in a single direction, and the third elastic member 537 can drive the first gear 551 back to the transmission position after the user removes the external force and the operating member 531 disengages from the first latch 533.

[0104] Furthermore, the first gear 551 is connected to the oscillating motor 51 in a transmission connection. When the first gear 551 is in the transmission position, the second conical tooth 5521 meshes with the first conical tooth 5511. When the first gear 551 is in the non-transmission position, the second conical tooth 5521 separates from the first conical tooth 5511.

[0105] Please refer to the following: Figure 17 Specifically, the first rotating seat 591 has a column 5911, which extends in a direction parallel to the engagement direction and has a shaft hole therein. The gear shaft of the first gear 551 is rotatably disposed in the shaft hole, and the third elastic member 537 is disposed in the shaft hole and abuts against the gear shaft of the first gear 551.

[0106] Thus, the first rotating seat 591 provides a mounting position for the first gear 551 and the third elastic element 537, and enables the first gear 551 to move in a direction parallel to the engagement direction. The first elastic element 535, the second elastic element 536, and the third elastic element 537 can all be, but are not limited to, springs.

[0107] In some embodiments, a first buckle 533 is disposed on a first rotating seat 591, and the first buckle 533 is an annular buckle. A first elastic member 535 is disposed inside the first buckle 533 and abuts against the operating member 531.

[0108] Thus, the mounting base provides a stable mounting position for the first latch 533 and the first elastic member 535, and also facilitates the engagement of the operating member 531 with the annular latch. Correspondingly, the cross-sections of the locking part 5312 and the unlocking part 5316 are generally annular or circular.

[0109] Please refer to the following: Figure 18 and Figure 19 In some embodiments, the oscillating motor 51 has a drive shaft 513 and a transmission shaft 515. The drive shaft 513 is driven to the head assembly 10, and the transmission shaft 515 is driven to the drive shaft 513 and engages with the second rotating seat 593 in a rotational direction around the second axis to form a second transmission path.

[0110] The oscillating motor 51 is a dual-axis motor, and both output shafts can be parallel to the second axis. The drive shaft 513 is the driving shaft, and the transmission shaft 515 is a driven shaft that can rotate under the drive shaft 513. It loses power after being disengaged from the drive shaft 513. Specifically, the oscillating motor 51 may also have an internal gear 517, through which power is output. The drive shaft 513 is connected to the internal gear 517 in a transmission relationship.

[0111] The drive shaft 513 is connected to the head assembly 10 via the transmission mechanism 55, and the drive gear 511 is sleeved on the drive shaft 513 of the oscillating motor 51. The first rotating base 591 has a mounting position for mounting the oscillating motor 51, and the oscillating motor 51 can be fixed on the first rotating base 591 by screws.

[0112] The drive shaft 515 is anti-rotationally engaged with the second rotating seat 593. Since the second rotating seat 593 is fixed on the support rod 31, when the drive shaft 515 outputs torque, a reaction force is generated, which drives the oscillating motor 51 to rotate the first rotating seat 591, thereby driving the assembly support and the head assembly 10 to rotate around the second axis.

[0113] Thus, the oscillating motor 51 can drive the up-and-down oscillation and the left-and-right oscillation respectively through two output shafts.

[0114] Furthermore, the drive shaft 513 has a first meshing end face 5131 at one end in the axial direction, and the transmission shaft 515 has a second meshing end face 5151 at one end in the axial direction. The first meshing end face 5131 and the second meshing end face 5151 are configured to mesh with each other. The operating member 531 also includes a paddle portion 5330, which is drively connected to the drive shaft 513 and / or the transmission shaft 515, and is configured to drive the transmission shaft 515 and the drive shaft 513 to mesh and disengage axially to control the on / off state of the second transmission path.

[0115] Understandably, the first meshing end face 5131 and the second meshing end face 5151 may have meshing teeth that can cooperate with each other, and after meshing, they can prevent rotational transmission around the second axis. Specifically, both the drive shaft 513 and the transmission shaft 515 have crown gears, and the first meshing end face 5131 and the second meshing end face 5151 are formed by the crown gears, respectively. Specifically, the paddle part 5330 is drivenly connected to the drive shaft 513.

[0116] In this way, the user can engage and disengage the transmission shaft 515 and the drive shaft 513 through the paddle part 5330, and then control the on / off of the second transmission path when the oscillating motor 51 is started, that is, control the start and stop of the fan 100 oscillation.

[0117] More specifically, the paddle part 5330 is located below the drive gear 511. When it moves downward, it will not affect the drive shaft 513. When it moves upward, it can lift the drive gear 511 upward, thereby driving the drive shaft 513 to move upward.

[0118] In some embodiments, the housing 573 further has a mounting groove 5735 extending in a direction parallel to the engagement direction, and an operating member 531 disposed in the mounting groove 5735 and configured to be movable along the mounting groove 5735. The operating member 531 is at least partially exposed outside the housing 573.

[0119] The operating component 531 may also include a main body 5310, which is fitted into an mounting groove 5735. An unlocking part 5316 can be sleeved on the main body 5310. The top end of the main body 5310 is exposed outside the outer casing 573, and the bottom end abuts against the locking part 5312. The driving part 5311 and the paddle part 5330 can be integrally connected to the main body 5310. Specifically, when the first gear 551 is in the transmission position, the operating component 531 is in the initial position. At this time, the user can press the top end of the main body 5310 to push the operating component 531 down to the third position, thereby moving the first gear 551 to the non-transmission position. Pressing the operating component 531 down again will return it to the initial position. The user can also push the operating component 531, which is in the initial position, up to the first position, thereby disengaging the drive shaft 513 from the transmission shaft 515. During the upward movement of the drive shaft 513 and the driving gear 511, the driving gear 511 remains engaged with the first gear 551.

[0120] In some embodiments, the end section of the drive shaft 515 away from the second meshing end face 5151 is non-circular, and the second rotating seat 593 has a mating shaft hole 5931 that mates with the end of the drive shaft 515.

[0121] Specifically, the end section of the drive shaft 513 is also non-circular, and the ends of both the drive shaft 513 and the transmission shaft 515 can be flat. Correspondingly, the mating shaft hole 5931 is also flat. Similarly, the drive gear 511 has a flat shaft hole, and the end of the drive shaft 513 is inserted into the shaft hole of the drive gear 511 to achieve a non-rotational fit between the two.

[0122] Thus, by inserting the end of the drive shaft 515 into the mating shaft hole 5931, a non-rotational fit can be achieved between the drive shaft 515 and the second rotating seat 593.

[0123] In some embodiments, the first rotating seat 591 has a rotating shaft structure 5913 extending along the direction of the second axis, and the second rotating seat 593 has a rotating groove 5932 that cooperates with the rotating shaft structure 5913.

[0124] Specifically, the rotating shaft structure 5913 is hollow, the rotating groove 5932 is arranged around the mating shaft hole 5931, and the transmission shaft 515 passes through the rotating shaft structure 5913 and mates with the mating shaft hole 5931.

[0125] Thus, the first rotating seat 591 can rotate and engage with the second rotating seat 593 around the second axis via the rotating shaft structure 5913.

[0126] Specifically, one of the rotating shaft structure 5913 and the rotating groove 5932 has a second latch 5933, and the other has a latch 5915. The latch 5915 engages with the second latch 5933, creating a limiting position in the direction of the second axis. In this way, the cooperation between the second latch 5933 and the latch 5915 can reduce the probability of abnormal disengagement between the two.

[0127] Furthermore, the surface of the second rotating seat 593 that mates with the first rotating seat 591 has an annular groove 5934. The annular groove 5934 is formed around the second axis and can constrain and guide the rotation of the first rotating seat 591.

[0128] The aforementioned fan 100 and chassis 33 provide support and stability for the entire unit. Support rod 31 connects chassis 33 to the head assembly 10, which generates airflow. Specifically, the head assembly 10 is connected to support rod 31 via oscillation assembly 50. Oscillating motor 51 drives drive gear 511 via drive shaft 513, causing transmission gears to rotate and thus oscillate the head assembly 10 vertically. Simultaneously, drive shaft 513 drives transmission shaft 515, which in turn acts on the second rotating seat 593, generating a reaction force to oscillate the head assembly 10 horizontally. Thus, fan 100 achieves single-motor drive of the head assembly 10 for both vertical and horizontal rotation. When operating component 531 is in its initial position, activating oscillation motor 51 simultaneously drives the head assembly 10 to oscillate horizontally and vertically. When the operating element 531 is in its initial position, pressing it down causes the drive unit 5311 to push down the first gear 551, disengaging it from the second gear 552. This disconnects the pitch and yaw transmission chain. The paddle part 5330 only disengages from the lower end face of the drive gear 511 and does not affect the drive shaft 513. The second transmission path remains effective. At this time, turning on the yaw motor 51 only drives the head assembly 10 to yaw left and right. Pressing down the operating element 531 again returns it to its initial position. When the operating element 531 is pulled up, the paddle part 5330 lifts the lower end face of the drive gear 511, moving it upwards along with the drive shaft fixed to it. At this time, the crown gear of the drive shaft 513 and the transmission shaft 515 fails due to disengagement, the transmission shaft 515 loses power, while the drive shaft 513 still has driving force because the motor internal gear 517 on it is still driven by the gear of the previous stage. At this time, the operating member 531 moves up but does not act on the transmission gear, the first transmission path is still effective. At this time, the oscillating motor 51 is turned on, which can only drive the head assembly 10 to pitch and oscillate.

[0129] Thus, the oscillation assembly 50 is installed between the head assembly 10 and the support rod 31, in a relatively central position. Regarding wiring, since the fan 100 can achieve single-motor oscillation drive, only one cable is needed to connect to the main board, requiring fewer wiring 70. The oscillation assembly 50 is located below the head assembly 10 in a relatively central position, making the overall center of gravity lower and centrally located relative to the chassis 33, which is beneficial to the stability of the entire machine. Furthermore, for vertical oscillation, the oscillation motor 51 only drives the head assembly 10 and part of the oscillation assembly 50, without needing to drive an additional oscillation motor. This reduces the driving load and the required motor driving force, effectively increasing motor reliability and providing a direction for cost reduction. Finally, the fan 100 can control three states of oscillation through a single operating component 531: simultaneous left / right and tilt oscillation; tilt oscillation only; and left / right oscillation only, providing convenient operation and a good user experience.

[0130] 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.

[0131] 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 fan, characterized in that, The fan includes a head assembly (10), a body assembly (30), and an oscillation assembly (50). The oscillation assembly (50) is disposed between the head assembly (10) and the body assembly (30) and connects the two respectively. The oscillation assembly (50) includes: A oscillating motor (51) is configured to drive the head assembly (10) to rotate about a first axis via a first transmission path and to drive the head assembly (10) to rotate about a second axis via a second transmission path, the direction of the second axis intersecting the direction of the first axis; and A clutch mechanism (53) is configured to control the connection and disconnection between the first transmission path and the second transmission path.

2. The fan according to claim 1, characterized in that, The oscillating assembly (50) further includes a mounting bracket, a first rotating seat (591) and a second rotating seat (593). The head assembly (10) is rotatably mounted on the mounting bracket around the first axis. The first rotating seat (591) and the second rotating seat (593) are rotatably engaged around the second axis. The mounting bracket is mounted on the first rotating seat (591). The second rotating seat (593) is fixedly connected to the fan body assembly (30). The oscillating motor (51) is mounted on the first rotating seat (591).

3. The fan according to claim 2, characterized in that, The fuselage assembly (30) includes a support rod (31) and a chassis (33). The chassis (33) has a support surface on the side opposite to the support rod (31). The axis of the support rod (31) coincides with the second axis and passes through the geometric center of the support surface.

4. The fan according to claim 2, characterized in that, The oscillating motor (51) has a drive shaft (513) and a transmission shaft (515). The drive shaft (513) is driven to the head assembly (10), and the transmission shaft (515) is driven to the drive shaft (513) and engages with the second rotating seat (593) in a rotational direction around the second axis to form the second transmission path.

5. The fan according to claim 4, characterized in that, The drive shaft (513) has a first meshing end face (5131) at one end in the axial direction, and the transmission shaft (515) has a second meshing end face (5151) at one end in the axial direction. The first meshing end face (5131) and the second meshing end face (5151) are configured to mesh with each other. The clutch mechanism (53) has a paddle portion (5330) which is drively connected to the drive shaft (513) and / or the transmission shaft (515) and is configured to drive the transmission shaft (515) to engage and disengage with the drive shaft (513) axially.

6. The fan according to claim 5, characterized in that, The end section of the drive shaft (515) away from the second meshing end face (5151) is non-circular, and the second rotating seat (593) has a mating shaft hole (5931) that mates with the end of the drive shaft (515). And / or, the first rotating seat (591) has a rotating shaft structure (5913) extending along the direction of the second axis, and the second rotating seat (593) has a rotating groove (5932) that mates with the rotating shaft structure (5913).

7. The fan according to claim 2, characterized in that, The fan also includes a transmission mechanism (55) that drives the oscillating motor (51) and the head assembly (10) to form the first transmission path; The transmission mechanism (55) has a transmission state and a non-transmission state, and the clutch mechanism (53) is connected to the transmission mechanism (55) and is configured to drive the transmission mechanism (55) to switch between the transmission state and the non-transmission state.

8. The fan according to claim 7, characterized in that, The transmission mechanism (55) includes a rack (553) and a transmission gear. The rack (553) is disposed on the head assembly (10) and arranged around the first axis. The transmission gear includes a first gear (551) and a second gear (552), wherein the first gear (551) is configured with its axis parallel to the second axis, and the second gear (552) is configured with its axis parallel to the first axis; The first gear (551) has a first conical tooth (5511), and the second gear (552) has a first conical tooth (5511) and a second cylindrical tooth (5522). The first conical tooth (5511) meshes with the first conical tooth (5511), and the second cylindrical tooth (5522) meshes with the rack (553). The first gear (551) is configured to be movably disposed and has a driving position and a non-driving position. The clutch mechanism (53) is connected to the first gear (551) and is configured to drive the first gear (551) to switch between the driving position and the non-driving position. When the first gear (551) is in the driving position, it meshes with the second gear (552), and the transmission mechanism (55) is in the driving state. When the first gear (551) is in the non-driving position, it disengages from the second gear (552), and the transmission mechanism (55) is in the non-driving state.

9. The fan according to claim 8, characterized in that, The clutch mechanism (53) includes an operating member (531) and a first latch (533). The operating member (531) has a driving part (5311) and a locking part (5312). The driving part (5311) cooperates with the first gear (551). The operating member (531) drives the first gear (551) to move through the driving part (5311). When the operating member (531) drives the first gear (551) to move to the transmission position and / or the non-transmission position, the locking part (5312) engages with the first latch (533).

10. The fan according to claim 9, characterized in that, The operating member (531) is configured to move in the engagement direction until the locking part (5312) engages with the first latch (533); the clutch mechanism (53) further includes a first elastic member (535), which cooperates with the operating member (531) and is configured to provide a driving force to drive the operating member (531) to move in a direction opposite to the engagement direction; The first buckle (533) has a first guide surface (5331), which intersects with the engagement direction and is used to generate a guide for engaging the first buckle (533); The clutch mechanism (53) further includes a second elastic element (536), and the operating element (531) also has an unlocking part (5316). The unlocking part (5316) is located upstream of the locking part (5312) in the engagement direction. The unlocking part (5316) has a contact surface (5317) and a second guide surface (5318). The contact surface (5317) is located downstream of the second guide surface (5318) in the engagement direction. The unlocking part (5316) is configured to move relative to the locking part (5312) in a direction parallel to the engagement direction. The second elastic element (536) is located between the locking part (5312) and the unlocking part (5316) and can be compressed until the contact surface (5317) abuts against the locking part (5312). The second guide surface (5318) intersects the engagement direction and is used to generate a guide for disengaging from the first latch (533).

11. The fan according to any one of claims 1-10, characterized in that, The clutch mechanism (53) includes an operating element (531) configured to move between a first position, a second position and a third position in sequence; In the first position, the operating member (531) cuts off the first transmission path and the second transmission path is connected; in the second position, both the first transmission path and the second transmission path are connected; in the third position, the operating member (531) cuts off the second transmission path and the first transmission path is connected.

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